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Carla
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Audio plugin host https://kx.studio/carla
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Carla/source/frontend/carla_host.py

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  1. #!/usr/bin/env python3

  2. # -*- coding: utf-8 -*-

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2022 Filipe Coelho <falktx@falktx.com>

  6. #

  7. # This program is free software; you can redistribute it and/or

  8. # modify it under the terms of the GNU General Public License as

  9. # published by the Free Software Foundation; either version 2 of

  10. # the License, or any later version.

  11. #

  12. # This program is distributed in the hope that it will be useful,

  13. # but WITHOUT ANY WARRANTY; without even the implied warranty of

  14. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  15. # GNU General Public License for more details.

  16. #

  17. # For a full copy of the GNU General Public License see the doc/GPL.txt file.

  18. 

  19. # ------------------------------------------------------------------------------------------------------------

  20. # Imports (Global)

  21. 

  22. import json

  23. 

  24. # ------------------------------------------------------------------------------------------------------------

  25. # Imports (ctypes)

  26. 

  27. from ctypes import (

  28.     byref, pointer

  29. )

  30. 

  31. # ------------------------------------------------------------------------------------------------------------

  32. # Imports (PyQt5)

  33. 

  34. # This fails in some configurations, assume >= 5.6.0 in that case

  35. try:

  36.     from PyQt5.Qt import PYQT_VERSION

  37. except ImportError:

  38.     PYQT_VERSION = 0x50600

  39. 

  40. from PyQt5.QtCore import (

  41.     QT_VERSION, qCritical, QBuffer, QEventLoop, QFileInfo, QIODevice, QMimeData, QModelIndex, QPointF, QTimer, QEvent

  42. )

  43. from PyQt5.QtGui import (

  44.     QImage, QImageWriter, QPainter, QPalette, QBrush

  45. )

  46. from PyQt5.QtWidgets import (

  47.     QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QGraphicsView, QMainWindow

  48. )

  49. 

  50. # ------------------------------------------------------------------------------------------------------------

  51. # Imports (Custom)

  52. 

  53. import ui_carla_host

  54. 

  55. from carla_app import *

  56. from carla_backend import *

  57. from carla_backend_qt import CarlaHostQtDLL, CarlaHostQtNull

  58. from carla_frontend import CarlaFrontendLib

  59. from carla_shared import *

  60. from carla_settings import *

  61. from carla_utils import *

  62. from carla_widgets import *

  63. 

  64. from patchcanvas import patchcanvas

  65. from widgets.digitalpeakmeter import DigitalPeakMeter

  66. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  67. 

  68. # ------------------------------------------------------------------------------------------------------------

  69. # Try Import OpenGL

  70. 

  71. try:

  72.     from PyQt5.QtOpenGL import QGLWidget

  73.     hasGL = True

  74. except:

  75.     hasGL = False

  76. 

  77. # ------------------------------------------------------------------------------------------------------------

  78. # Safe exception hook, needed for PyQt5

  79. 

  80. def sys_excepthook(typ, value, tback):

  81.     return sys.__excepthook__(typ, value, tback)

  82. 

  83. # ------------------------------------------------------------------------------------------------------------

  84. # Session Management support

  85. 

  86. CARLA_CLIENT_NAME = os.getenv("CARLA_CLIENT_NAME")

  87. LADISH_APP_NAME   = os.getenv("LADISH_APP_NAME")

  88. NSM_URL           = os.getenv("NSM_URL")

  89. 

  90. # ------------------------------------------------------------------------------------------------------------

  91. # Small print helper

  92. 

  93. def processMode2Str(processMode):

  94.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  95.         return "Single client"

  96.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  97.         return "Multi client"

  98.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  99.         return "Continuous Rack"

  100.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  101.         return "Patchbay"

  102.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  103.         return "Bridge"

  104.     return "Unknown"

  105. 

  106. # ------------------------------------------------------------------------------------------------------------

  107. # Carla Print class

  108. 

  109. class CarlaPrint:

  110.     def __init__(self, err):

  111.         self.err = err

  112. 

  113.     def flush(self):

  114.         gCarla.utils.fflush(self.err)

  115. 

  116.     def write(self, string):

  117.         gCarla.utils.fputs(self.err, string)

  118. 

  119. # ------------------------------------------------------------------------------------------------------------

  120. # Host Window

  121. 

  122. class HostWindow(QMainWindow):

  123. #class HostWindow(QMainWindow, PluginEditParentMeta, metaclass=PyQtMetaClass):

  124.     # signals

  125.     SIGTERM = pyqtSignal()

  126.     SIGUSR1 = pyqtSignal()

  127. 

  128.     # CustomActions

  129.     CUSTOM_ACTION_NONE         = 0

  130.     CUSTOM_ACTION_APP_CLOSE    = 1

  131.     CUSTOM_ACTION_PROJECT_LOAD = 2

  132. 

  133.     # --------------------------------------------------------------------------------------------------------

  134. 

  135.     def __init__(self, host, withCanvas, parent=None):

  136.         QMainWindow.__init__(self, parent)

  137.         self.host = host

  138.         self.ui = ui_carla_host.Ui_CarlaHostW()

  139.         self.ui.setupUi(self)

  140.         gCarla.gui = self

  141. 

  142.         if False:

  143.             # kdevelop likes this :)

  144.             host = CarlaHostNull()

  145.             self.host = host

  146. 

  147.         self._true = c_char_p("true".encode("utf-8"))

  148. 

  149.         self.fParentOrSelf = parent or self

  150. 

  151.         # ----------------------------------------------------------------------------------------------------

  152.         # Internal stuff

  153. 

  154.         self.fIdleTimerNull = self.startTimer(1000) # keep application signals alive

  155.         self.fIdleTimerFast = 0

  156.         self.fIdleTimerSlow = 0

  157. 

  158.         self.fLadspaRdfNeedsUpdate = True

  159.         self.fLadspaRdfList = []

  160. 

  161.         self.fPluginCount = 0

  162.         self.fPluginList  = []

  163. 

  164.         self.fPluginListDialog = None

  165.         self.fFavoritePlugins = []

  166. 

  167.         self.fProjectFilename  = ""

  168.         self.fIsProjectLoading = False

  169.         self.fCurrentlyRemovingAllPlugins = False

  170.         self.fHasLoadedLv2Plugins = False

  171. 

  172.         self.fRecentFileList = []

  173. 

  174.         self.fLastTransportBPM   = 0.0

  175.         self.fLastTransportFrame = 0

  176.         self.fLastTransportState = False

  177.         self.fBufferSize         = 0

  178.         self.fSampleRate         = 0.0

  179.         self.fOscAddressTCP      = ""

  180.         self.fOscAddressUDP      = ""

  181. 

  182.         if MACOS:

  183.             self.fMacClosingHelper = True

  184. 

  185.         # CancelableActionCallback Box

  186.         self.fCancelableActionBox = None

  187. 

  188.         # run a custom action after engine is properly closed

  189.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  190. 

  191.         # first attempt of auto-start engine doesn't show an error

  192.         self.fFirstEngineInit = True

  193. 

  194.         # to be filled with key-value pairs of current settings

  195.         self.fSavedSettings = {}

  196. 

  197.         # true if NSM server handles our window management

  198.         self.fWindowCloseHideGui = False

  199. 

  200.         if host.isControl:

  201.             self.fClientName         = "Carla-Control"

  202.             self.fSessionManagerName = "Control"

  203.         elif host.isPlugin:

  204.             self.fClientName         = "Carla-Plugin"

  205.             self.fSessionManagerName = "Plugin"

  206.         elif LADISH_APP_NAME:

  207.             self.fClientName         = LADISH_APP_NAME

  208.             self.fSessionManagerName = ""

  209.         elif NSM_URL and host.nsmOK:

  210.             self.fClientName         = "Carla.tmp"

  211.             self.fSessionManagerName = "Non Session Manager TMP"

  212.             self.fWindowCloseHideGui = True

  213.         else:

  214.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  215.             self.fSessionManagerName = ""

  216. 

  217.         # ----------------------------------------------------------------------------------------------------

  218.         # Internal stuff (patchbay)

  219. 

  220.         self.fPeaksCleared = True

  221. 

  222.         self.fExternalPatchbay = False

  223.         self.fSelectedPlugins  = []

  224. 

  225.         self.fCanvasWidth  = 0

  226.         self.fCanvasHeight = 0

  227.         self.fMiniCanvasUpdateTimeout = 0

  228. 

  229.         self.fWithCanvas = withCanvas

  230. 

  231.         # ----------------------------------------------------------------------------------------------------

  232.         # Internal stuff (logs)

  233. 

  234.         self.autoscrollOnNewLog = True

  235.         self.lastLogSliderPos = 0

  236. 

  237.         # ----------------------------------------------------------------------------------------------------

  238.         # Set up GUI (engine stopped)

  239. 

  240.         if self.host.isPlugin or self.host.isControl:

  241.             self.ui.act_file_save.setVisible(False)

  242.             self.ui.act_engine_start.setEnabled(False)

  243.             self.ui.act_engine_start.setVisible(False)

  244.             self.ui.act_engine_stop.setEnabled(False)

  245.             self.ui.act_engine_stop.setVisible(False)

  246.             self.ui.menu_Engine.setEnabled(False)

  247.             self.ui.menu_Engine.setVisible(False)

  248.             self.ui.menu_Engine.menuAction().setVisible(False)

  249.             self.ui.tabWidget.removeTab(2)

  250. 

  251.             if self.host.isControl:

  252.                 self.ui.act_file_new.setVisible(False)

  253.                 self.ui.act_file_open.setVisible(False)

  254.                 self.ui.menu_Open_Recent.setVisible(False)

  255.                 self.ui.act_file_save_as.setVisible(False)

  256.                 self.ui.tabUtils.removeTab(0)

  257.             else:

  258.                 self.ui.act_file_save_as.setText(self.tr("Export as..."))

  259. 

  260.                 if not withCanvas:

  261.                     self.ui.tabWidget.tabBar().hide()

  262. 

  263.         else:

  264.             self.ui.act_engine_start.setEnabled(True)

  265. 

  266.             if WINDOWS:

  267.                 self.ui.tabWidget.removeTab(2)

  268. 

  269.         if self.host.isControl:

  270.             self.ui.act_file_refresh.setEnabled(False)

  271.         else:

  272.             self.ui.act_file_connect.setEnabled(False)

  273.             self.ui.act_file_connect.setVisible(False)

  274.             self.ui.act_file_refresh.setEnabled(False)

  275.             self.ui.act_file_refresh.setVisible(False)

  276. 

  277.         if self.fSessionManagerName and not self.host.isPlugin:

  278.             self.ui.act_file_new.setEnabled(False)

  279. 

  280.         self.ui.act_file_open.setEnabled(False)

  281.         self.ui.menu_Open_Recent.setEnabled(False)

  282.         self.ui.act_file_save.setEnabled(False)

  283.         self.ui.act_file_save_as.setEnabled(False)

  284.         self.ui.act_engine_stop.setEnabled(False)

  285.         self.ui.act_plugin_remove_all.setEnabled(False)

  286. 

  287.         self.ui.act_canvas_show_internal.setChecked(False)

  288.         self.ui.act_canvas_show_internal.setVisible(False)

  289.         self.ui.act_canvas_show_external.setChecked(False)

  290.         self.ui.act_canvas_show_external.setVisible(False)

  291. 

  292.         self.ui.menu_PluginMacros.setEnabled(False)

  293.         self.ui.menu_Canvas.setEnabled(False)

  294. 

  295.         self.ui.dockWidgetTitleBar = QWidget(self)

  296.         self.ui.dockWidget.setTitleBarWidget(self.ui.dockWidgetTitleBar)

  297. 

  298.         if not withCanvas:

  299.             self.ui.act_canvas_show_internal.setVisible(False)

  300.             self.ui.act_canvas_show_external.setVisible(False)

  301.             self.ui.act_canvas_arrange.setVisible(False)

  302.             self.ui.act_canvas_refresh.setVisible(False)

  303.             self.ui.act_canvas_save_image.setVisible(False)

  304.             self.ui.act_canvas_zoom_100.setVisible(False)

  305.             self.ui.act_canvas_zoom_fit.setVisible(False)

  306.             self.ui.act_canvas_zoom_in.setVisible(False)

  307.             self.ui.act_canvas_zoom_out.setVisible(False)

  308.             self.ui.act_settings_show_meters.setVisible(False)

  309.             self.ui.act_settings_show_keyboard.setVisible(False)

  310.             self.ui.menu_Canvas_Zoom.setEnabled(False)

  311.             self.ui.menu_Canvas_Zoom.setVisible(False)

  312.             self.ui.menu_Canvas_Zoom.menuAction().setVisible(False)

  313.             self.ui.menu_Canvas.setEnabled(False)

  314.             self.ui.menu_Canvas.setVisible(False)

  315.             self.ui.menu_Canvas.menuAction().setVisible(False)

  316.             self.ui.tw_miniCanvas.hide()

  317.             self.ui.tabWidget.removeTab(1)

  318.             if WINDOWS:

  319.                 self.ui.tabWidget.tabBar().hide()

  320. 

  321.         # ----------------------------------------------------------------------------------------------------

  322.         # Set up GUI (disk)

  323. 

  324.         exts = gCarla.utils.get_supported_file_extensions()

  325. 

  326.         self.fDirModel = QFileSystemModel(self)

  327.         self.fDirModel.setRootPath(HOME)

  328.         self.fDirModel.setNameFilters(tuple(("*." + i) for i in exts))

  329. 

  330.         self.ui.fileTreeView.setModel(self.fDirModel)

  331.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(HOME))

  332.         self.ui.fileTreeView.setColumnHidden(1, True)

  333.         self.ui.fileTreeView.setColumnHidden(2, True)

  334.         self.ui.fileTreeView.setColumnHidden(3, True)

  335.         self.ui.fileTreeView.setHeaderHidden(True)

  336. 

  337.         # ----------------------------------------------------------------------------------------------------

  338.         # Set up GUI (transport)

  339. 

  340.         fontMetrics   = self.ui.l_transport_bbt.fontMetrics()

  341.         minValueWidth = fontMetricsHorizontalAdvance(fontMetrics, "000|00|0000")

  342.         minLabelWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_frame.text())

  343. 

  344.         labelTimeWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_time.text())

  345.         labelBBTWidth  = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_bbt.text())

  346. 

  347.         if minLabelWidth < labelTimeWidth:

  348.             minLabelWidth = labelTimeWidth

  349.         if minLabelWidth < labelBBTWidth:

  350.             minLabelWidth = labelBBTWidth

  351. 

  352.         self.ui.label_transport_frame.setMinimumWidth(minLabelWidth + 3)

  353.         self.ui.label_transport_time.setMinimumWidth(minLabelWidth + 3)

  354.         self.ui.label_transport_bbt.setMinimumWidth(minLabelWidth + 3)

  355. 

  356.         self.ui.l_transport_bbt.setMinimumWidth(minValueWidth + 3)

  357.         self.ui.l_transport_frame.setMinimumWidth(minValueWidth + 3)

  358.         self.ui.l_transport_time.setMinimumWidth(minValueWidth + 3)

  359. 

  360.         if host.isPlugin:

  361.             self.ui.b_transport_play.setEnabled(False)

  362.             self.ui.b_transport_stop.setEnabled(False)

  363.             self.ui.b_transport_backwards.setEnabled(False)

  364.             self.ui.b_transport_forwards.setEnabled(False)

  365.             self.ui.group_transport_controls.setEnabled(False)

  366.             self.ui.group_transport_controls.setVisible(False)

  367.             self.ui.cb_transport_link.setEnabled(False)

  368.             self.ui.cb_transport_link.setVisible(False)

  369.             self.ui.cb_transport_jack.setEnabled(False)

  370.             self.ui.cb_transport_jack.setVisible(False)

  371.             self.ui.dsb_transport_bpm.setEnabled(False)

  372.             self.ui.dsb_transport_bpm.setReadOnly(True)

  373. 

  374.         self.ui.w_transport.setEnabled(False)

  375. 

  376.         # ----------------------------------------------------------------------------------------------------

  377.         # Set up GUI (rack)

  378. 

  379.         self.ui.listWidget.setHostAndParent(self.host, self)

  380. 

  381.         sb = self.ui.listWidget.verticalScrollBar()

  382.         self.ui.rackScrollBar.setMinimum(sb.minimum())

  383.         self.ui.rackScrollBar.setMaximum(sb.maximum())

  384.         self.ui.rackScrollBar.setValue(sb.value())

  385. 

  386.         sb.rangeChanged.connect(self.ui.rackScrollBar.setRange)

  387.         sb.valueChanged.connect(self.ui.rackScrollBar.setValue)

  388.         self.ui.rackScrollBar.rangeChanged.connect(sb.setRange)

  389.         self.ui.rackScrollBar.valueChanged.connect(sb.setValue)

  390. 

  391.         self.updateStyle()

  392. 

  393.         self.ui.rack.setStyleSheet("""

  394.           CarlaRackList#CarlaRackList {

  395.             background-color: black;

  396.           }

  397.         """)

  398. 

  399.         # ----------------------------------------------------------------------------------------------------

  400.         # Set up GUI (patchbay)

  401. 

  402.         self.ui.peak_in.setChannelCount(2)

  403.         self.ui.peak_in.setMeterColor(DigitalPeakMeter.COLOR_BLUE)

  404.         self.ui.peak_in.setMeterOrientation(DigitalPeakMeter.VERTICAL)

  405.         self.ui.peak_in.setFixedWidth(25)

  406. 

  407.         self.ui.peak_out.setChannelCount(2)

  408.         self.ui.peak_out.setMeterColor(DigitalPeakMeter.COLOR_GREEN)

  409.         self.ui.peak_out.setMeterOrientation(DigitalPeakMeter.VERTICAL)

  410.         self.ui.peak_out.setFixedWidth(25)

  411. 

  412.         self.ui.scrollArea = PixmapKeyboardHArea(self.ui.patchbay)

  413.         self.ui.keyboard   = self.ui.scrollArea.keyboard

  414.         self.ui.patchbay.layout().addWidget(self.ui.scrollArea, 1, 0, 1, 0)

  415. 

  416.         self.ui.scrollArea.setEnabled(False)

  417. 

  418.         self.ui.miniCanvasPreview.setRealParent(self)

  419.         self.ui.tw_miniCanvas.tabBar().hide()

  420. 

  421.         # ----------------------------------------------------------------------------------------------------

  422.         # Set up GUI (logs)

  423. 

  424.         self.ui.text_logs.textChanged.connect(self.slot_logButtonsState)

  425.         self.ui.logs_clear.clicked.connect(self.slot_logClear)

  426.         self.ui.logs_save.clicked.connect(self.slot_logSave)

  427.         self.ui.logs_autoscroll.stateChanged.connect(self.slot_toggleLogAutoscroll)

  428.         self.ui.text_logs.verticalScrollBar().valueChanged.connect(self.slot_logSliderMoved)

  429. 

  430.         # ----------------------------------------------------------------------------------------------------

  431.         # Set up GUI (special stuff for Mac OS)

  432. 

  433.         if MACOS:

  434.             self.ui.act_file_quit.setMenuRole(QAction.QuitRole)

  435.             self.ui.act_settings_configure.setMenuRole(QAction.PreferencesRole)

  436.             self.ui.act_help_about.setMenuRole(QAction.AboutRole)

  437.             self.ui.act_help_about_juce.setMenuRole(QAction.ApplicationSpecificRole)

  438.             self.ui.act_help_about_qt.setMenuRole(QAction.AboutQtRole)

  439.             self.ui.menu_Settings.setTitle("Panels")

  440. 

  441.         # ----------------------------------------------------------------------------------------------------

  442.         # Load Settings

  443. 

  444.         self.loadSettings(True)

  445.         self.updateRecentFiles()

  446. 

  447.         # ----------------------------------------------------------------------------------------------------

  448.         # Set-up Canvas

  449. 

  450.         if withCanvas:

  451.             self.scene = patchcanvas.PatchScene(self, self.ui.graphicsView)

  452.             self.ui.graphicsView.setScene(self.scene)

  453. 

  454.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  455.                 self.ui.glView = QGLWidget(self)

  456.                 self.ui.graphicsView.setViewport(self.ui.glView)

  457. 

  458.             self.setupCanvas()

  459. 

  460.         # ----------------------------------------------------------------------------------------------------

  461.         # Set-up Icons

  462. 

  463.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  464.             self.ui.act_file_connect.setIcon(getIcon('network-connect', 16, 'svgz'))

  465.             self.ui.act_file_refresh.setIcon(getIcon('view-refresh', 16, 'svgz'))

  466.             self.ui.act_file_new.setIcon(getIcon('document-new', 16, 'svgz'))

  467.             self.ui.act_file_open.setIcon(getIcon('document-open', 16, 'svgz'))

  468.             self.ui.menu_Open_Recent.setIcon(getIcon('document-open', 16, 'svgz'))

  469.             self.ui.act_file_save.setIcon(getIcon('document-save', 16, 'svgz'))

  470.             self.ui.act_file_save_as.setIcon(getIcon('document-save-as', 16, 'svgz'))

  471.             self.ui.act_file_quit.setIcon(getIcon('application-exit', 16, 'svgz'))

  472.             self.ui.act_engine_start.setIcon(getIcon('media-playback-start', 16, 'svgz'))

  473.             self.ui.act_engine_stop.setIcon(getIcon('media-playback-stop', 16, 'svgz'))

  474.             self.ui.act_engine_panic.setIcon(getIcon('dialog-warning', 16, 'svgz'))

  475.             self.ui.act_engine_config.setIcon(getIcon('configure', 16, 'svgz'))

  476.             self.ui.act_plugin_add.setIcon(getIcon('list-add', 16, 'svgz'))

  477.             self.ui.act_plugin_add_jack.setIcon(getIcon('list-add', 16, 'svgz'))

  478.             self.ui.act_plugin_remove_all.setIcon(getIcon('edit-delete', 16, 'svgz'))

  479.             self.ui.act_canvas_arrange.setIcon(getIcon('view-sort-ascending', 16, 'svgz'))

  480.             self.ui.act_canvas_refresh.setIcon(getIcon('view-refresh', 16, 'svgz'))

  481.             self.ui.act_canvas_zoom_fit.setIcon(getIcon('zoom-fit-best', 16, 'svgz'))

  482.             self.ui.act_canvas_zoom_in.setIcon(getIcon('zoom-in', 16, 'svgz'))

  483.             self.ui.act_canvas_zoom_out.setIcon(getIcon('zoom-out', 16, 'svgz'))

  484.             self.ui.act_canvas_zoom_100.setIcon(getIcon('zoom-original', 16, 'svgz'))

  485.             self.ui.act_settings_configure.setIcon(getIcon('configure', 16, 'svgz'))

  486.             self.ui.b_disk_add.setIcon(getIcon('list-add', 16, 'svgz'))

  487.             self.ui.b_disk_remove.setIcon(getIcon('list-remove', 16, 'svgz'))

  488.             self.ui.b_transport_play.setIcon(getIcon('media-playback-start', 16, 'svgz'))

  489.             self.ui.b_transport_stop.setIcon(getIcon('media-playback-stop', 16, 'svgz'))

  490.             self.ui.b_transport_backwards.setIcon(getIcon('media-seek-backward', 16, 'svgz'))

  491.             self.ui.b_transport_forwards.setIcon(getIcon('media-seek-forward', 16, 'svgz'))

  492.             self.ui.logs_clear.setIcon(getIcon('edit-clear', 16, 'svgz'))

  493.             self.ui.logs_save.setIcon(getIcon('document-save', 16, 'svgz'))

  494. 

  495.         # ----------------------------------------------------------------------------------------------------

  496.         # Connect actions to functions

  497. 

  498.         self.ui.act_file_new.triggered.connect(self.slot_fileNew)

  499.         self.ui.act_file_open.triggered.connect(self.slot_fileOpen)

  500.         self.ui.act_file_save.triggered.connect(self.slot_fileSave)

  501.         self.ui.act_file_save_as.triggered.connect(self.slot_fileSaveAs)

  502. 

  503.         self.ui.act_engine_start.triggered.connect(self.slot_engineStart)

  504.         self.ui.act_engine_stop.triggered.connect(self.slot_engineStop)

  505.         self.ui.act_engine_panic.triggered.connect(self.slot_pluginsDisable)

  506.         self.ui.act_engine_config.triggered.connect(self.slot_engineConfig)

  507. 

  508.         self.ui.act_plugin_add.triggered.connect(self.slot_pluginAdd)

  509.         self.ui.act_plugin_add_jack.triggered.connect(self.slot_jackAppAdd)

  510.         self.ui.act_plugin_remove_all.triggered.connect(self.slot_confirmRemoveAll)

  511. 

  512.         self.ui.act_plugins_enable.triggered.connect(self.slot_pluginsEnable)

  513.         self.ui.act_plugins_disable.triggered.connect(self.slot_pluginsDisable)

  514.         self.ui.act_plugins_volume100.triggered.connect(self.slot_pluginsVolume100)

  515.         self.ui.act_plugins_mute.triggered.connect(self.slot_pluginsMute)

  516.         self.ui.act_plugins_wet100.triggered.connect(self.slot_pluginsWet100)

  517.         self.ui.act_plugins_bypass.triggered.connect(self.slot_pluginsBypass)

  518.         self.ui.act_plugins_center.triggered.connect(self.slot_pluginsCenter)

  519.         self.ui.act_plugins_compact.triggered.connect(self.slot_pluginsCompact)

  520.         self.ui.act_plugins_expand.triggered.connect(self.slot_pluginsExpand)

  521. 

  522.         self.ui.act_settings_show_toolbar.toggled.connect(self.slot_showToolbar)

  523.         self.ui.act_settings_show_meters.toggled.connect(self.slot_showCanvasMeters)

  524.         self.ui.act_settings_show_keyboard.toggled.connect(self.slot_showCanvasKeyboard)

  525.         self.ui.act_settings_show_side_panel.toggled.connect(self.slot_showSidePanel)

  526.         self.ui.act_settings_configure.triggered.connect(self.slot_configureCarla)

  527. 

  528.         self.ui.act_help_about.triggered.connect(self.slot_aboutCarla)

  529.         self.ui.act_help_about_juce.triggered.connect(self.slot_aboutJuce)

  530.         self.ui.act_help_about_qt.triggered.connect(self.slot_aboutQt)

  531. 

  532.         self.ui.cb_disk.currentIndexChanged.connect(self.slot_diskFolderChanged)

  533.         self.ui.b_disk_add.clicked.connect(self.slot_diskFolderAdd)

  534.         self.ui.b_disk_remove.clicked.connect(self.slot_diskFolderRemove)

  535.         self.ui.fileTreeView.doubleClicked.connect(self.slot_fileTreeDoubleClicked)

  536. 

  537.         self.ui.b_transport_play.clicked.connect(self.slot_transportPlayPause)

  538.         self.ui.b_transport_stop.clicked.connect(self.slot_transportStop)

  539.         self.ui.b_transport_backwards.clicked.connect(self.slot_transportBackwards)

  540.         self.ui.b_transport_forwards.clicked.connect(self.slot_transportForwards)

  541.         self.ui.dsb_transport_bpm.valueChanged.connect(self.slot_transportBpmChanged)

  542.         self.ui.cb_transport_jack.clicked.connect(self.slot_transportJackEnabled)

  543.         self.ui.cb_transport_link.clicked.connect(self.slot_transportLinkEnabled)

  544. 

  545.         self.ui.b_xruns.clicked.connect(self.slot_xrunClear)

  546. 

  547.         self.ui.listWidget.customContextMenuRequested.connect(self.slot_showPluginActionsMenu)

  548. 

  549.         self.ui.keyboard.noteOn.connect(self.slot_noteOn)

  550.         self.ui.keyboard.noteOff.connect(self.slot_noteOff)

  551. 

  552.         self.ui.tabWidget.currentChanged.connect(self.slot_tabChanged)

  553.         self.ui.toolBar.visibilityChanged.connect(self.slot_toolbarVisibilityChanged)

  554. 

  555.         if withCanvas:

  556.             self.ui.act_canvas_show_internal.triggered.connect(self.slot_canvasShowInternal)

  557.             self.ui.act_canvas_show_external.triggered.connect(self.slot_canvasShowExternal)

  558.             self.ui.act_canvas_arrange.triggered.connect(self.slot_canvasArrange)

  559.             self.ui.act_canvas_refresh.triggered.connect(self.slot_canvasRefresh)

  560.             self.ui.act_canvas_zoom_fit.triggered.connect(self.slot_canvasZoomFit)

  561.             self.ui.act_canvas_zoom_in.triggered.connect(self.slot_canvasZoomIn)

  562.             self.ui.act_canvas_zoom_out.triggered.connect(self.slot_canvasZoomOut)

  563.             self.ui.act_canvas_zoom_100.triggered.connect(self.slot_canvasZoomReset)

  564.             self.ui.act_canvas_save_image.triggered.connect(self.slot_canvasSaveImage)

  565.             self.ui.act_canvas_save_image_2x.triggered.connect(self.slot_canvasSaveImage)

  566.             self.ui.act_canvas_save_image_4x.triggered.connect(self.slot_canvasSaveImage)

  567.             self.ui.act_canvas_copy_clipboard.triggered.connect(self.slot_canvasCopyToClipboard)

  568.             self.ui.act_canvas_arrange.setEnabled(False) # TODO, later

  569.             self.ui.graphicsView.horizontalScrollBar().valueChanged.connect(self.slot_horizontalScrollBarChanged)

  570.             self.ui.graphicsView.verticalScrollBar().valueChanged.connect(self.slot_verticalScrollBarChanged)

  571.             self.ui.miniCanvasPreview.miniCanvasMoved.connect(self.slot_miniCanvasMoved)

  572.             self.scene.scaleChanged.connect(self.slot_canvasScaleChanged)

  573.             self.scene.pluginSelected.connect(self.slot_canvasPluginSelected)

  574.             self.scene.selectionChanged.connect(self.slot_canvasSelectionChanged)

  575. 

  576.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  577.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  578. 

  579.         host.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  580.         host.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  581.         host.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  582.         host.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  583.         host.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  584.         host.CancelableActionCallback.connect(self.slot_handleCancelableActionCallback)

  585.         host.ProjectLoadFinishedCallback.connect(self.slot_handleProjectLoadFinishedCallback)

  586. 

  587.         host.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  588.         host.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  589.         host.ReloadAllCallback.connect(self.slot_handleReloadAllCallback)

  590. 

  591.         host.NoteOnCallback.connect(self.slot_handleNoteOnCallback)

  592.         host.NoteOffCallback.connect(self.slot_handleNoteOffCallback)

  593. 

  594.         host.UpdateCallback.connect(self.slot_handleUpdateCallback)

  595. 

  596.         if withCanvas:

  597.             host.PatchbayClientAddedCallback.connect(self.slot_handlePatchbayClientAddedCallback)

  598.             host.PatchbayClientRemovedCallback.connect(self.slot_handlePatchbayClientRemovedCallback)

  599.             host.PatchbayClientRenamedCallback.connect(self.slot_handlePatchbayClientRenamedCallback)

  600.             host.PatchbayClientDataChangedCallback.connect(self.slot_handlePatchbayClientDataChangedCallback)

  601.             host.PatchbayClientPositionChangedCallback.connect(self.slot_handlePatchbayClientPositionChangedCallback)

  602.             host.PatchbayPortAddedCallback.connect(self.slot_handlePatchbayPortAddedCallback)

  603.             host.PatchbayPortRemovedCallback.connect(self.slot_handlePatchbayPortRemovedCallback)

  604.             host.PatchbayPortChangedCallback.connect(self.slot_handlePatchbayPortChangedCallback)

  605.             host.PatchbayPortGroupAddedCallback.connect(self.slot_handlePatchbayPortGroupAddedCallback)

  606.             host.PatchbayPortGroupRemovedCallback.connect(self.slot_handlePatchbayPortGroupRemovedCallback)

  607.             host.PatchbayPortGroupChangedCallback.connect(self.slot_handlePatchbayPortGroupChangedCallback)

  608.             host.PatchbayConnectionAddedCallback.connect(self.slot_handlePatchbayConnectionAddedCallback)

  609.             host.PatchbayConnectionRemovedCallback.connect(self.slot_handlePatchbayConnectionRemovedCallback)

  610. 

  611.         host.NSMCallback.connect(self.slot_handleNSMCallback)

  612. 

  613.         host.DebugCallback.connect(self.slot_handleDebugCallback)

  614.         host.InfoCallback.connect(self.slot_handleInfoCallback)

  615.         host.ErrorCallback.connect(self.slot_handleErrorCallback)

  616.         host.QuitCallback.connect(self.slot_handleQuitCallback)

  617.         host.InlineDisplayRedrawCallback.connect(self.slot_handleInlineDisplayRedrawCallback)

  618. 

  619.         # ----------------------------------------------------------------------------------------------------

  620.         # Final setup

  621. 

  622.         self.ui.text_logs.clear()

  623.         self.slot_logButtonsState(False)

  624.         self.setProperWindowTitle()

  625. 

  626.         # Disable non-supported features

  627.         features = gCarla.utils.get_supported_features()

  628. 

  629.         if "link" not in features:

  630.             self.ui.cb_transport_link.setEnabled(False)

  631.             self.ui.cb_transport_link.setVisible(False)

  632. 

  633.         if "juce" not in features:

  634.             self.ui.act_help_about_juce.setEnabled(False)

  635.             self.ui.act_help_about_juce.setVisible(False)

  636. 

  637.         # Plugin needs to have timers always running so it receives messages

  638.         if self.host.isPlugin or self.host.isRemote:

  639.             self.startTimers()

  640. 

  641.         # Qt needs this so it properly creates & resizes the canvas

  642.         self.ui.tabWidget.blockSignals(True)

  643.         self.ui.tabWidget.setCurrentIndex(1)

  644.         self.ui.tabWidget.setCurrentIndex(0)

  645.         self.ui.tabWidget.blockSignals(False)

  646. 

  647.         # Start in patchbay tab if using forced patchbay mode

  648.         if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  649.             self.ui.tabWidget.setCurrentIndex(1)

  650. 

  651.         # Load initial project file if set

  652.         if not (self.host.isControl or self.host.isPlugin):

  653.             projectFile = getInitialProjectFile(QApplication.instance())

  654. 

  655.             if projectFile:

  656.                 self.loadProjectLater(projectFile)

  657. 

  658.         # For NSM we wait for the open message

  659.         if NSM_URL and host.nsmOK:

  660.             host.nsm_ready(NSM_CALLBACK_INIT)

  661.             return

  662. 

  663.         if not host.isControl:

  664.             QTimer.singleShot(0, self.slot_engineStart)

  665. 

  666.     # --------------------------------------------------------------------------------------------------------

  667.     # Manage visibility state, needed for NSM

  668. 

  669.     def hideForNSM(self):

  670.         for pitem in reversed(self.fPluginList):

  671.             if pitem is None:

  672.                 continue

  673.             pitem.getWidget().hideCustomUI()

  674.         self.hide()

  675. 

  676.     def showIfNeeded(self):

  677.         if self.host.nsmOK:

  678.             self.ui.act_file_quit.setText(self.tr("Hide"))

  679.             QApplication.instance().setQuitOnLastWindowClosed(False)

  680.         else:

  681.             self.show()

  682. 

  683.     # --------------------------------------------------------------------------------------------------------

  684.     # Setup

  685. 

  686.     def compactPlugin(self, pluginId):

  687.         if pluginId > self.fPluginCount:

  688.             return

  689. 

  690.         pitem = self.fPluginList[pluginId]

  691. 

  692.         if pitem is None:

  693.             return

  694. 

  695.         pitem.recreateWidget(True)

  696. 

  697.     def changePluginColor(self, pluginId, color, colorStr):

  698.         if pluginId > self.fPluginCount:

  699.             return

  700. 

  701.         pitem = self.fPluginList[pluginId]

  702. 

  703.         if pitem is None:

  704.             return

  705. 

  706.         self.host.set_custom_data(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaColor", colorStr)

  707.         pitem.recreateWidget(newColor = color)

  708. 

  709.     def changePluginSkin(self, pluginId, skin):

  710.         if pluginId > self.fPluginCount:

  711.             return

  712. 

  713.         pitem = self.fPluginList[pluginId]

  714. 

  715.         if pitem is None:

  716.             return

  717. 

  718.         self.host.set_custom_data(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkin", skin)

  719.         if skin not in ("default","rncbc","presets","mpresets"):

  720.             pitem.recreateWidget(newSkin = skin, newColor = (255,255,255))

  721.         else:

  722.             pitem.recreateWidget(newSkin = skin)

  723. 

  724.     def findPluginInPatchbay(self, pluginId):

  725.         if pluginId > self.fPluginCount:

  726.             return

  727. 

  728.         if self.fExternalPatchbay:

  729.             self.slot_canvasShowInternal()

  730. 

  731.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

  732.             name = self.host.get_plugin_info(pluginId)['name']

  733.             if not patchcanvas.focusGroupUsingGroupName(name):

  734.                 return

  735. 

  736.         self.ui.tabWidget.setCurrentIndex(1)

  737. 

  738.     def switchPlugins(self, pluginIdA, pluginIdB):

  739.         if pluginIdA == pluginIdB:

  740.             return

  741.         if pluginIdA < 0 or pluginIdB < 0:

  742.             return

  743.         if pluginIdA >= self.fPluginCount or pluginIdB >= self.fPluginCount:

  744.             return

  745. 

  746.         self.host.switch_plugins(pluginIdA, pluginIdB)

  747. 

  748.         itemA = self.fPluginList[pluginIdA]

  749.         compactA = itemA.isCompacted()

  750.         guiShownA = itemA.isGuiShown()

  751. 

  752.         itemB = self.fPluginList[pluginIdB]

  753.         compactB = itemB.isCompacted()

  754.         guiShownB = itemB.isGuiShown()

  755. 

  756.         itemA.setPluginId(pluginIdA)

  757.         itemA.recreateWidget2(compactB, guiShownB)

  758. 

  759.         itemB.setPluginId(pluginIdB)

  760.         itemB.recreateWidget2(compactA, guiShownA)

  761. 

  762.         if self.fWithCanvas:

  763.             self.slot_canvasRefresh()

  764. 

  765.     def setLoadRDFsNeeded(self):

  766.         self.fLadspaRdfNeedsUpdate = True

  767. 

  768.     def setProperWindowTitle(self):

  769.         title = self.fClientName

  770. 

  771.         if self.fProjectFilename and not self.host.nsmOK:

  772.             title += " - %s" % os.path.basename(self.fProjectFilename)

  773.         if self.fSessionManagerName:

  774.             title += " (%s)" % self.fSessionManagerName

  775. 

  776.         self.setWindowTitle(title)

  777. 

  778.     def updateBufferSize(self, newBufferSize):

  779.         if self.fBufferSize == newBufferSize:

  780.             return

  781.         self.fBufferSize = newBufferSize

  782.         self.ui.cb_buffer_size.clear()

  783.         self.ui.cb_buffer_size.addItem(str(newBufferSize))

  784.         self.ui.cb_buffer_size.setCurrentIndex(0)

  785. 

  786.     def updateSampleRate(self, newSampleRate):

  787.         if self.fSampleRate == newSampleRate:

  788.             return

  789.         self.fSampleRate = newSampleRate

  790.         self.ui.cb_sample_rate.clear()

  791.         self.ui.cb_sample_rate.addItem(str(newSampleRate))

  792.         self.ui.cb_sample_rate.setCurrentIndex(0)

  793.         self.refreshTransport(True)

  794. 

  795.     # --------------------------------------------------------------------------------------------------------

  796.     # Files

  797. 

  798.     def loadProjectNow(self):

  799.         if not self.fProjectFilename:

  800.             return qCritical("ERROR: loading project without filename set")

  801.         if self.host.nsmOK and not os.path.exists(self.fProjectFilename):

  802.             return

  803. 

  804.         self.projectLoadingStarted()

  805.         self.fIsProjectLoading = True

  806. 

  807.         if not self.host.load_project(self.fProjectFilename):

  808.             self.fIsProjectLoading = False

  809.             self.projectLoadingFinished(True)

  810. 

  811.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load project"),

  812.                              self.host.get_last_error(),

  813.                              QMessageBox.Ok, QMessageBox.Ok)

  814. 

  815.     def loadProjectLater(self, filename):

  816.         self.fProjectFilename = QFileInfo(filename).absoluteFilePath()

  817.         self.setProperWindowTitle()

  818.         QTimer.singleShot(1, self.slot_loadProjectNow)

  819. 

  820.     def saveProjectNow(self):

  821.         if not self.fProjectFilename:

  822.             return qCritical("ERROR: saving project without filename set")

  823. 

  824.         if not self.host.save_project(self.fProjectFilename):

  825.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to save project"),

  826.                              self.host.get_last_error(),

  827.                              QMessageBox.Ok, QMessageBox.Ok)

  828.             return

  829. 

  830.     def projectLoadingStarted(self):

  831.         self.ui.rack.setEnabled(False)

  832.         self.ui.graphicsView.setEnabled(False)

  833. 

  834.     def projectLoadingFinished(self, refreshCanvas):

  835.         self.ui.rack.setEnabled(True)

  836.         self.ui.graphicsView.setEnabled(True)

  837. 

  838.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE or not self.fWithCanvas:

  839.             return

  840. 

  841.         if refreshCanvas and not self.loadExternalCanvasGroupPositionsIfNeeded(self.fProjectFilename):

  842.             QTimer.singleShot(1, self.slot_canvasRefresh)

  843. 

  844.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

  845.         extrafile = filename.rsplit(".",1)[0]+".json"

  846.         if not os.path.exists(extrafile):

  847.             return False

  848. 

  849.         with open(filename, "r") as fh:

  850.             if "".join(fh.readlines(90)).find("<CARLA-PROJECT VERSION='2.0'>") < 0:

  851.                 return False

  852. 

  853.         with open(extrafile, "r") as fh:

  854.             try:

  855.                 canvasdata = json.load(fh)['canvas']

  856.             except:

  857.                 return False

  858. 

  859.         print("NOTICE: loading old-style canvas group positions via legacy json file")

  860.         patchcanvas.restoreGroupPositions(canvasdata)

  861.         QTimer.singleShot(1, self.slot_canvasRefresh)

  862.         return True

  863. 

  864.     # --------------------------------------------------------------------------------------------------------

  865.     # Files (menu actions)

  866. 

  867.     @pyqtSlot()

  868.     def slot_fileNew(self):

  869.         if self.fPluginCount > 0 and QMessageBox.question(self, self.tr("New File"),

  870.                                                                 self.tr("Plugins that are currently loaded will be removed. Are you sure?"),

  871.                                                                 QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  872.             return

  873. 

  874.         self.pluginRemoveAll()

  875.         self.fProjectFilename = ""

  876.         self.setProperWindowTitle()

  877.         self.host.clear_project_filename()

  878. 

  879.     @pyqtSlot()

  880.     def slot_fileOpen(self):

  881.         fileFilter = self.tr("Carla Project File (*.carxp);;Carla Preset File (*.carxs)")

  882.         filename, ok = QFileDialog.getOpenFileName(self, self.tr("Open Carla Project File"), self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], filter=fileFilter)

  883. 

  884.         # FIXME use ok value, test if it works as expected

  885.         if not filename:

  886.             return

  887. 

  888.         newFile = True

  889. 

  890.         if self.fPluginCount > 0:

  891.             ask = QMessageBox.question(self, self.tr("Question"), self.tr("There are some plugins loaded, do you want to remove them now?"),

  892.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  893.             newFile = (ask == QMessageBox.Yes)

  894. 

  895.         if newFile:

  896.             self.pluginRemoveAll()

  897.             self.fProjectFilename = filename

  898.             self.setProperWindowTitle()

  899.             self.loadProjectNow()

  900.         else:

  901.             filenameOld = self.fProjectFilename

  902.             self.fProjectFilename = filename

  903.             self.loadProjectNow()

  904.             self.fProjectFilename = filenameOld

  905. 

  906.         self.addToRecentFilesList(self.fProjectFilename)

  907.     

  908.     def addToRecentFilesList(self, filePath):

  909.         # FIXME: move this constant elsewhere? or add it to global settings?

  910.         MAX_RECENT_FILES = 4

  911.         settings = QSafeSettings()

  912.         recentFileList = settings.value("RecentFileList", [], list)

  913. 

  914.         # TODO: reorder the list so last used are listed first?

  915.         if filePath not in recentFileList:

  916.             recentFileList.insert(0, filePath)

  917.             if len(recentFileList) > MAX_RECENT_FILES:

  918.                 recentFileList.pop()

  919. 

  920.         settings.setValue("RecentFileList", recentFileList)

  921.         del settings

  922.         self.updateRecentFiles()

  923. 

  924.     def updateRecentFiles(self):

  925.         settings = QSafeSettings()

  926.         recentFileList = settings.value("RecentFileList", [], list)

  927.         del settings

  928. 

  929.         menu = self.ui.menu_Open_Recent

  930.         menu.clear()

  931. 

  932.         for f in recentFileList:

  933.             act = menu.addAction(f)

  934.             act.triggered.connect(self.slot_fileMenuOpenRecent)

  935.         act = menu.addSeparator()

  936.         act = menu.addAction("Clear")

  937.         act.triggered.connect(self.slot_clearRecentFiles)

  938. 

  939.     @pyqtSlot()

  940.     def slot_clearRecentFiles(self):

  941.         menu = self.ui.menu_Open_Recent

  942.         menu.clear()

  943.         settings = QSafeSettings()

  944.         settings.setValue("RecentFileList", [])

  945.         del settings

  946. 

  947.     @pyqtSlot()

  948.     def slot_fileMenuOpenRecent(self):

  949.         sender = self.sender()

  950.         filename = sender.text()

  951. 

  952.         newFile = True

  953. 

  954.         if self.fPluginCount > 0:

  955.             ask = QMessageBox.question(self, self.tr("Question"), self.tr("There are some plugins loaded, do you want to remove them now?"),

  956.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  957.             newFile = (ask == QMessageBox.Yes)

  958. 

  959.         if newFile:

  960.             self.pluginRemoveAll()

  961.             self.fProjectFilename = filename

  962.             self.setProperWindowTitle()

  963.             self.loadProjectNow()

  964.         else:

  965.             filenameOld = self.fProjectFilename

  966.             self.fProjectFilename = filename

  967.             self.loadProjectNow()

  968.             self.fProjectFilename = filenameOld

  969. 

  970.     @pyqtSlot()

  971.     def slot_fileSave(self, saveAs=False):

  972.         if self.fProjectFilename and not saveAs:

  973.             return self.saveProjectNow()

  974. 

  975.         fileFilter = self.tr("Carla Project File (*.carxp)")

  976.         filename, ok = QFileDialog.getSaveFileName(self, self.tr("Save Carla Project File"), self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], filter=fileFilter)

  977. 

  978.         # FIXME use ok value, test if it works as expected

  979.         if not filename:

  980.             return

  981. 

  982.         if not filename.lower().endswith(".carxp"):

  983.             filename += ".carxp"

  984. 

  985.         if self.fProjectFilename != filename:

  986.             self.fProjectFilename = filename

  987.             self.setProperWindowTitle()

  988. 

  989.         self.addToRecentFilesList(filename)

  990.         self.saveProjectNow()

  991. 

  992.     @pyqtSlot()

  993.     def slot_fileSaveAs(self):

  994.         self.slot_fileSave(True)

  995. 

  996.     @pyqtSlot()

  997.     def slot_loadProjectNow(self):

  998.         self.loadProjectNow()

  999. 

  1000.     # --------------------------------------------------------------------------------------------------------

  1001.     # Engine (menu actions)

  1002. 

  1003.     @pyqtSlot()

  1004.     def slot_engineStart(self):

  1005.         audioDriver = setEngineSettings(self.host, self.fSavedSettings)

  1006. 

  1007.         firstInit = self.fFirstEngineInit

  1008.         self.fFirstEngineInit = False

  1009. 

  1010.         self.ui.text_logs.appendPlainText("======= Starting engine =======")

  1011. 

  1012.         if self.host.engine_init(audioDriver, self.fClientName):

  1013.             if firstInit and not (self.host.isControl or self.host.isPlugin):

  1014.                 settings = QSafeSettings()

  1015.                 lastBpm  = settings.value("LastBPM", 120.0, float)

  1016.                 del settings

  1017.                 if lastBpm >= 20.0:

  1018.                     self.host.transport_bpm(lastBpm)

  1019.             return

  1020. 

  1021.         elif firstInit:

  1022.             self.ui.text_logs.appendPlainText("Failed to start engine on first try, ignored")

  1023.             return

  1024. 

  1025.         audioError = self.host.get_last_error()

  1026. 

  1027.         if audioError:

  1028.             QMessageBox.critical(self, self.tr("Error"),

  1029.                                  self.tr("Could not connect to Audio backend '%s', possible reasons:\n%s" % (audioDriver, audioError)))

  1030.         else:

  1031.             QMessageBox.critical(self, self.tr("Error"),

  1032.                                  self.tr("Could not connect to Audio backend '%s'" % audioDriver))

  1033. 

  1034.     @pyqtSlot()

  1035.     def slot_engineStop(self, forced = False):

  1036.         self.ui.text_logs.appendPlainText("======= Stopping engine =======")

  1037. 

  1038.         if self.fPluginCount == 0 or not self.host.is_engine_running():

  1039.             self.engineStopFinal()

  1040.             return True

  1041. 

  1042.         if not forced:

  1043.             ask = QMessageBox.question(self, self.tr("Warning"), self.tr("There are still some plugins loaded, you need to remove them to stop the engine.\n"

  1044.                                                                          "Do you want to do this now?"),

  1045.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  1046.             if ask != QMessageBox.Yes:

  1047.                 return False

  1048. 

  1049.         return self.slot_engineStopTryAgain()

  1050. 

  1051.     @pyqtSlot()

  1052.     def slot_engineConfig(self):

  1053.         engineRunning = self.host.is_engine_running()

  1054. 

  1055.         if engineRunning:

  1056.             dialog = RuntimeDriverSettingsW(self.fParentOrSelf, self.host)

  1057. 

  1058.         else:

  1059.             if self.host.isPlugin:

  1060.                 driverName = "Plugin"

  1061.                 driverIndex = 0

  1062.             elif self.host.audioDriverForced:

  1063.                 driverName = self.host.audioDriverForced

  1064.                 driverIndex = 0

  1065.             else:

  1066.                 settings = QSafeSettings()

  1067.                 driverName = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  1068.                 for i in range(self.host.get_engine_driver_count()):

  1069.                     if self.host.get_engine_driver_name(i) == driverName:

  1070.                         driverIndex = i

  1071.                         break

  1072.                 else:

  1073.                     driverIndex = -1

  1074.                 del settings

  1075.             dialog = DriverSettingsW(self.fParentOrSelf, self.host, driverIndex, driverName)

  1076.             dialog.ui.ico_restart.hide()

  1077.             dialog.ui.label_restart.hide()

  1078.             dialog.adjustSize()

  1079. 

  1080.         if not dialog.exec_():

  1081.             return

  1082. 

  1083.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  1084. 

  1085.         if engineRunning:

  1086.             self.host.set_engine_buffer_size_and_sample_rate(bufferSize, sampleRate)

  1087.         else:

  1088.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  1089.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  1090.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  1091. 

  1092.     @pyqtSlot()

  1093.     def slot_engineStopTryAgain(self):

  1094.         if self.host.is_engine_running() and not self.host.set_engine_about_to_close():

  1095.             QTimer.singleShot(0, self.slot_engineStopTryAgain)

  1096.             return False

  1097. 

  1098.         self.engineStopFinal()

  1099.         return True

  1100. 

  1101.     def engineStopFinal(self):

  1102.         patchcanvas.handleAllPluginsRemoved()

  1103.         self.killTimers()

  1104. 

  1105.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1106.             self.removeAllPlugins()

  1107.         else:

  1108.             self.fProjectFilename = ""

  1109.             self.setProperWindowTitle()

  1110.             if self.fPluginCount != 0:

  1111.                 self.fCurrentlyRemovingAllPlugins = True

  1112.                 self.projectLoadingStarted()

  1113. 

  1114.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1115.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1116.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1117. 

  1118.         if not self.host.engine_close():

  1119.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1120.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1121. 

  1122.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1123.             self.close()

  1124.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1125.             self.slot_engineStart()

  1126.             self.loadProjectNow()

  1127.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1128. 

  1129.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1130. 

  1131.     # --------------------------------------------------------------------------------------------------------

  1132.     # Engine (host callbacks)

  1133. 

  1134.     @pyqtSlot(int, int, int, int, float, str)

  1135.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

  1136.         self.ui.menu_PluginMacros.setEnabled(True)

  1137.         self.ui.menu_Canvas.setEnabled(True)

  1138.         self.ui.w_transport.setEnabled(True)

  1139. 

  1140.         self.ui.act_canvas_show_internal.blockSignals(True)

  1141.         self.ui.act_canvas_show_external.blockSignals(True)

  1142. 

  1143.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1144.             self.ui.act_canvas_show_internal.setChecked(True)

  1145.             self.ui.act_canvas_show_internal.setVisible(True)

  1146.             self.ui.act_canvas_show_external.setChecked(False)

  1147.             self.ui.act_canvas_show_external.setVisible(True)

  1148.             self.fExternalPatchbay = False

  1149.         else:

  1150.             self.ui.act_canvas_show_internal.setChecked(False)

  1151.             self.ui.act_canvas_show_internal.setVisible(False)

  1152.             self.ui.act_canvas_show_external.setChecked(True)

  1153.             self.ui.act_canvas_show_external.setVisible(False)

  1154.             self.fExternalPatchbay = not self.host.isPlugin

  1155. 

  1156.         self.ui.act_canvas_show_internal.blockSignals(False)

  1157.         self.ui.act_canvas_show_external.blockSignals(False)

  1158. 

  1159.         if not (self.host.isControl or self.host.isPlugin):

  1160.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1161.             self.ui.act_file_save.setEnabled(canSave)

  1162.             self.ui.act_engine_start.setEnabled(False)

  1163.             self.ui.act_engine_stop.setEnabled(True)

  1164. 

  1165.         if not self.host.isPlugin:

  1166.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1167. 

  1168.         if self.host.isPlugin or not self.fSessionManagerName:

  1169.             self.ui.act_file_open.setEnabled(True)

  1170.             self.ui.menu_Open_Recent.setEnabled(True)

  1171.             self.ui.act_file_save_as.setEnabled(True)

  1172. 

  1173.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1174.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1175. 

  1176.         if self.ui.cb_transport_link.isEnabled():

  1177.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1178. 

  1179.         self.updateBufferSize(bufferSize)

  1180.         self.updateSampleRate(int(sampleRate))

  1181.         self.refreshRuntimeInfo(0.0, 0)

  1182.         self.startTimers()

  1183. 

  1184.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1185.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1186.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1187.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1188.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1189. 

  1190.     @pyqtSlot()

  1191.     def slot_handleEngineStoppedCallback(self):

  1192.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1193. 

  1194.         if self.fWithCanvas:

  1195.             patchcanvas.clear()

  1196. 

  1197.         self.killTimers()

  1198. 

  1199.         # just in case

  1200.         self.removeAllPlugins()

  1201.         self.refreshRuntimeInfo(0.0, 0)

  1202. 

  1203.         self.ui.menu_PluginMacros.setEnabled(False)

  1204.         self.ui.menu_Canvas.setEnabled(False)

  1205.         self.ui.w_transport.setEnabled(False)

  1206. 

  1207.         if not (self.host.isControl or self.host.isPlugin):

  1208.             self.ui.act_file_save.setEnabled(False)

  1209.             self.ui.act_engine_start.setEnabled(True)

  1210.             self.ui.act_engine_stop.setEnabled(False)

  1211. 

  1212.         if self.host.isPlugin or not self.fSessionManagerName:

  1213.             self.ui.act_file_open.setEnabled(False)

  1214.             self.ui.act_file_open_recent.setEnabled(False)

  1215.             self.ui.act_file_save_as.setEnabled(False)

  1216. 

  1217.     @pyqtSlot(int, str)

  1218.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1219.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1220. 

  1221.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1222.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1223. 

  1224.     @pyqtSlot(int)

  1225.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1226.         self.updateBufferSize(newBufferSize)

  1227. 

  1228.     @pyqtSlot(float)

  1229.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1230.         self.updateSampleRate(int(newSampleRate))

  1231. 

  1232.     @pyqtSlot(int, bool, str)

  1233.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1234.         if self.fCancelableActionBox is not None:

  1235.             self.fCancelableActionBox.close()

  1236. 

  1237.         if started:

  1238.             self.fCancelableActionBox = QMessageBox(self)

  1239.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1240.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1241.             self.fCancelableActionBox.setText(action)

  1242.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1243.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1244.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1245.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1246.             self.fCancelableActionBox.show()

  1247. 

  1248.         else:

  1249.             self.fCancelableActionBox = None

  1250. 

  1251.     @pyqtSlot()

  1252.     def slot_canlableActionBoxClicked(self):

  1253.         self.host.cancel_engine_action()

  1254. 

  1255.     @pyqtSlot()

  1256.     def slot_handleProjectLoadFinishedCallback(self):

  1257.         self.fIsProjectLoading = False

  1258.         self.projectLoadingFinished(False)

  1259. 

  1260.     # --------------------------------------------------------------------------------------------------------

  1261.     # Plugins

  1262. 

  1263.     def removeAllPlugins(self):

  1264.         self.ui.act_plugin_remove_all.setEnabled(False)

  1265.         patchcanvas.handleAllPluginsRemoved()

  1266. 

  1267.         while self.ui.listWidget.takeItem(0):

  1268.             pass

  1269. 

  1270.         self.clearSideStuff()

  1271. 

  1272.         for pitem in self.fPluginList:

  1273.             if pitem is None:

  1274.                 continue

  1275. 

  1276.             pitem.close()

  1277.             del pitem

  1278. 

  1279.         self.fPluginCount = 0

  1280.         self.fPluginList  = []

  1281. 

  1282.     # --------------------------------------------------------------------------------------------------------

  1283.     # Plugins (menu actions)

  1284. 

  1285.     def showAddPluginDialog(self):

  1286.         # TODO self.fHasLoadedLv2Plugins

  1287.         if self.fPluginListDialog is None:

  1288.             hostSettings = {

  1289.                 'showPluginBridges': self.fSavedSettings[CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES],

  1290.                 'showWineBridges': self.fSavedSettings[CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES],

  1291.                 'useSystemIcons': self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS],

  1292.                 'wineAutoPrefix': self.fSavedSettings[CARLA_KEY_WINE_AUTO_PREFIX],

  1293.                 'wineExecutable': self.fSavedSettings[CARLA_KEY_WINE_EXECUTABLE],

  1294.                 'wineFallbackPrefix': self.fSavedSettings[CARLA_KEY_WINE_FALLBACK_PREFIX],

  1295.             }

  1296.             self.fPluginListDialog = d = gCarla.felib.createPluginListDialog(self.fParentOrSelf, hostSettings)

  1297. 

  1298.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_LADSPA, self.fSavedSettings[CARLA_KEY_PATHS_LADSPA])

  1299.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_DSSI, self.fSavedSettings[CARLA_KEY_PATHS_DSSI])

  1300.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_LV2, self.fSavedSettings[CARLA_KEY_PATHS_LV2])

  1301.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_VST2, self.fSavedSettings[CARLA_KEY_PATHS_VST2])

  1302.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_VST3, self.fSavedSettings[CARLA_KEY_PATHS_VST3])

  1303.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_SF2, self.fSavedSettings[CARLA_KEY_PATHS_SF2])

  1304.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_SFZ, self.fSavedSettings[CARLA_KEY_PATHS_SFZ])

  1305.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_JSFX, self.fSavedSettings[CARLA_KEY_PATHS_JSFX])

  1306.             gCarla.felib.setPluginListDialogPath(d, PLUGIN_CLAP, self.fSavedSettings[CARLA_KEY_PATHS_CLAP])

  1307. 

  1308.         ret = gCarla.felib.execPluginListDialog(self.fPluginListDialog)

  1309. 

  1310.         # TODO

  1311.         #if dialog.fFavoritePluginsChanged:

  1312.             #self.fFavoritePlugins = dialog.fFavoritePlugins

  1313. 

  1314.         if not ret:

  1315.             return

  1316. 

  1317.         if not self.host.is_engine_running():

  1318.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1319.             return

  1320. 

  1321.         btype    = ret['build']

  1322.         ptype    = ret['type']

  1323.         filename = ret['filename']

  1324.         label    = ret['label']

  1325.         uniqueId = ret['uniqueId']

  1326.         extraPtr = None

  1327. 

  1328.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1329. 

  1330.     def showAddJackAppDialog(self):

  1331.         ret = gCarla.felib.createAndExecJackAppDialog(self.fParentOrSelf, self.fProjectFilename)

  1332. 

  1333.         if not ret:

  1334.             return

  1335. 

  1336.         if not self.host.is_engine_running():

  1337.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1338.             return

  1339. 

  1340.         return ret

  1341. 

  1342.     @pyqtSlot()

  1343.     def slot_favoritePluginAdd(self):

  1344.         plugin = self.sender().data()

  1345. 

  1346.         if plugin is None:

  1347.             return

  1348. 

  1349.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1350.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1351.             # remove plugin from favorites

  1352.             try:

  1353.                 self.fFavoritePlugins.remove(plugin)

  1354.             except ValueError:

  1355.                 pass

  1356.             else:

  1357.                 settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1358.                 settingsDBf.setValue("PluginDatabase/Favorites", self.fFavoritePlugins)

  1359.                 settingsDBf.sync()

  1360.                 del settingsDBf

  1361. 

  1362.             CustomMessageBox(self,

  1363.                              QMessageBox.Critical,

  1364.                              self.tr("Error"),

  1365.                              self.tr("Failed to load plugin"),

  1366.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1367. 

  1368.     @pyqtSlot()

  1369.     def slot_showPluginActionsMenu(self):

  1370.         menu = QMenu(self)

  1371. 

  1372.         menu.addSection("Plugins")

  1373.         menu.addAction(self.ui.act_plugin_add)

  1374. 

  1375.         if len(self.fFavoritePlugins) != 0:

  1376.             fmenu = QMenu("Add from favorites", self)

  1377.             for p in self.fFavoritePlugins:

  1378.                 act = fmenu.addAction(p['name'])

  1379.                 act.setData(p)

  1380.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1381.             menu.addMenu(fmenu)

  1382. 

  1383.         menu.addAction(self.ui.act_plugin_remove_all)

  1384. 

  1385.         menu.addSection("All plugins (macros)")

  1386.         menu.addAction(self.ui.act_plugins_enable)

  1387.         menu.addAction(self.ui.act_plugins_disable)

  1388.         menu.addSeparator()

  1389.         menu.addAction(self.ui.act_plugins_volume100)

  1390.         menu.addAction(self.ui.act_plugins_mute)

  1391.         menu.addSeparator()

  1392.         menu.addAction(self.ui.act_plugins_wet100)

  1393.         menu.addAction(self.ui.act_plugins_bypass)

  1394.         menu.addSeparator()

  1395.         menu.addAction(self.ui.act_plugins_center)

  1396.         menu.addSeparator()

  1397.         menu.addAction(self.ui.act_plugins_compact)

  1398.         menu.addAction(self.ui.act_plugins_expand)

  1399. 

  1400.         menu.exec_(QCursor.pos())

  1401. 

  1402.     @pyqtSlot()

  1403.     def slot_pluginAdd(self):

  1404.         data = self.showAddPluginDialog()

  1405. 

  1406.         if data is None:

  1407.             return

  1408. 

  1409.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1410. 

  1411.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1412.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1413.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1414. 

  1415.     @pyqtSlot()

  1416.     def slot_confirmRemoveAll(self):

  1417.         if self.fPluginCount == 0:

  1418.             return

  1419. 

  1420.         if QMessageBox.question(self, self.tr("Remove All"),

  1421.                                       self.tr("Are you sure you want to remove all plugins?"),

  1422.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1423.             return

  1424. 

  1425.         self.pluginRemoveAll()

  1426. 

  1427.     def pluginRemoveAll(self):

  1428.         if self.fPluginCount == 0:

  1429.             return

  1430. 

  1431.         self.fCurrentlyRemovingAllPlugins = True

  1432.         self.projectLoadingStarted()

  1433. 

  1434.         if not self.host.remove_all_plugins():

  1435.             self.projectLoadingFinished(True)

  1436.             self.fCurrentlyRemovingAllPlugins = False

  1437.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1438.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1439. 

  1440.     @pyqtSlot()

  1441.     def slot_jackAppAdd(self):

  1442.         data = self.showAddJackAppDialog()

  1443. 

  1444.         if data is None:

  1445.             return

  1446. 

  1447.         if not data['command']:

  1448.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1449.                              self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1450.             return

  1451. 

  1452.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK,

  1453.                                     data['command'], data['name'], data['labelSetup'],

  1454.                                     0, None, PLUGIN_OPTIONS_NULL):

  1455.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1456.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1457. 

  1458.     # --------------------------------------------------------------------------------------------------------

  1459.     # Plugins (macros)

  1460. 

  1461.     @pyqtSlot()

  1462.     def slot_pluginsEnable(self):

  1463.         if not self.host.is_engine_running():

  1464.             return

  1465. 

  1466.         for pitem in self.fPluginList:

  1467.             if pitem is None:

  1468.                 break

  1469. 

  1470.             pitem.getWidget().setActive(True, True, True)

  1471. 

  1472.     @pyqtSlot()

  1473.     def slot_pluginsDisable(self):

  1474.         if not self.host.is_engine_running():

  1475.             return

  1476. 

  1477.         for pitem in self.fPluginList:

  1478.             if pitem is None:

  1479.                 break

  1480. 

  1481.             pitem.getWidget().setActive(False, True, True)

  1482. 

  1483.     @pyqtSlot()

  1484.     def slot_pluginsVolume100(self):

  1485.         if not self.host.is_engine_running():

  1486.             return

  1487. 

  1488.         for pitem in self.fPluginList:

  1489.             if pitem is None:

  1490.                 break

  1491. 

  1492.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1493. 

  1494.     @pyqtSlot()

  1495.     def slot_pluginsMute(self):

  1496.         if not self.host.is_engine_running():

  1497.             return

  1498. 

  1499.         for pitem in self.fPluginList:

  1500.             if pitem is None:

  1501.                 break

  1502. 

  1503.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1504. 

  1505.     @pyqtSlot()

  1506.     def slot_pluginsWet100(self):

  1507.         if not self.host.is_engine_running():

  1508.             return

  1509. 

  1510.         for pitem in self.fPluginList:

  1511.             if pitem is None:

  1512.                 break

  1513. 

  1514.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1515. 

  1516.     @pyqtSlot()

  1517.     def slot_pluginsBypass(self):

  1518.         if not self.host.is_engine_running():

  1519.             return

  1520. 

  1521.         for pitem in self.fPluginList:

  1522.             if pitem is None:

  1523.                 break

  1524. 

  1525.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1526. 

  1527.     @pyqtSlot()

  1528.     def slot_pluginsCenter(self):

  1529.         if not self.host.is_engine_running():

  1530.             return

  1531. 

  1532.         for pitem in self.fPluginList:

  1533.             if pitem is None:

  1534.                 break

  1535. 

  1536.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1537.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1538.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1539. 

  1540.     @pyqtSlot()

  1541.     def slot_pluginsCompact(self):

  1542.         for pitem in self.fPluginList:

  1543.             if pitem is None:

  1544.                 break

  1545.             pitem.compact()

  1546. 

  1547.     @pyqtSlot()

  1548.     def slot_pluginsExpand(self):

  1549.         for pitem in self.fPluginList:

  1550.             if pitem is None:

  1551.                 break

  1552.             pitem.expand()

  1553. 

  1554.     # --------------------------------------------------------------------------------------------------------

  1555.     # Plugins (host callbacks)

  1556. 

  1557.     @pyqtSlot(int, int, str)

  1558.     def slot_handlePluginAddedCallback(self, pluginId, pluginType, pluginName):

  1559.         if pluginId != self.fPluginCount:

  1560.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1561.             pitem = self.getPluginItem(pluginId)

  1562.             pitem.recreateWidget()

  1563.             return

  1564. 

  1565.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN])

  1566.         self.fPluginList.append(pitem)

  1567.         self.fPluginCount += 1

  1568. 

  1569.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1570. 

  1571.         if pluginType == PLUGIN_LV2:

  1572.             self.fHasLoadedLv2Plugins = True

  1573. 

  1574.     @pyqtSlot(int)

  1575.     def slot_handlePluginRemovedCallback(self, pluginId):

  1576.         if self.fWithCanvas:

  1577.             patchcanvas.handlePluginRemoved(pluginId)

  1578. 

  1579.         if pluginId in self.fSelectedPlugins:

  1580.             self.clearSideStuff()

  1581. 

  1582.         if self.fPluginCount == 0:

  1583.             return

  1584. 

  1585.         pitem = self.getPluginItem(pluginId)

  1586. 

  1587.         self.fPluginCount -= 1

  1588.         self.fPluginList.pop(pluginId)

  1589.         self.ui.listWidget.takeItem(pluginId)

  1590. 

  1591.         if pitem is not None:

  1592.             pitem.close()

  1593.             del pitem

  1594. 

  1595.         if self.fPluginCount == 0:

  1596.             self.ui.act_plugin_remove_all.setEnabled(False)

  1597.             if self.fCurrentlyRemovingAllPlugins:

  1598.                 self.fCurrentlyRemovingAllPlugins = False

  1599.                 self.projectLoadingFinished(False)

  1600.             return

  1601. 

  1602.         # push all plugins 1 slot back

  1603.         for i in range(pluginId, self.fPluginCount):

  1604.             pitem = self.fPluginList[i]

  1605.             pitem.setPluginId(i)

  1606. 

  1607.         self.ui.act_plugin_remove_all.setEnabled(True)

  1608. 

  1609.     # --------------------------------------------------------------------------------------------------------

  1610.     # Canvas

  1611. 

  1612.     def clearSideStuff(self):

  1613.         if self.fWithCanvas:

  1614.             self.scene.clearSelection()

  1615. 

  1616.         self.fSelectedPlugins = []

  1617. 

  1618.         self.ui.keyboard.allNotesOff(False)

  1619.         self.ui.scrollArea.setEnabled(False)

  1620. 

  1621.         self.fPeaksCleared = True

  1622.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1623.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1624.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1625.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1626. 

  1627.     def setupCanvas(self):

  1628.         pOptions = patchcanvas.options_t()

  1629.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1630.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1631.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1632.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1633.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1634.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1635. 

  1636.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1637.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1638.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1639.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1640.         else:

  1641.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1642. 

  1643.         pFeatures = patchcanvas.features_t()

  1644.         pFeatures.group_info   = False

  1645.         pFeatures.group_rename = False

  1646.         pFeatures.port_info    = False

  1647.         pFeatures.port_rename  = False

  1648.         pFeatures.handle_group_pos = False

  1649. 

  1650.         patchcanvas.setOptions(pOptions)

  1651.         patchcanvas.setFeatures(pFeatures)

  1652.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1653. 

  1654.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1655. 

  1656.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1657.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1658.             self.fCanvasHeight = int(tryCanvasSize[1])

  1659.         else:

  1660.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1661.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1662. 

  1663.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1664.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1665.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1666. 

  1667.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1668.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1669. 

  1670.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1671.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1672. 

  1673.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1674.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1675.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1676. 

  1677.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1678.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1679. 

  1680.         else:

  1681.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1682. 

  1683.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1684.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1685.         else:

  1686.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1687. 

  1688.     def updateCanvasInitialPos(self):

  1689.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1690.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1691.         patchcanvas.setInitialPos(x, y)

  1692. 

  1693.     def updateMiniCanvasLater(self):

  1694.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1695. 

  1696.     # --------------------------------------------------------------------------------------------------------

  1697.     # Canvas (menu actions)

  1698. 

  1699.     @pyqtSlot()

  1700.     def slot_canvasShowInternal(self):

  1701.         self.fExternalPatchbay = False

  1702.         self.ui.act_canvas_show_internal.blockSignals(True)

  1703.         self.ui.act_canvas_show_external.blockSignals(True)

  1704.         self.ui.act_canvas_show_internal.setChecked(True)

  1705.         self.ui.act_canvas_show_external.setChecked(False)

  1706.         self.ui.act_canvas_show_internal.blockSignals(False)

  1707.         self.ui.act_canvas_show_external.blockSignals(False)

  1708.         self.slot_canvasRefresh()

  1709. 

  1710.     @pyqtSlot()

  1711.     def slot_canvasShowExternal(self):

  1712.         self.fExternalPatchbay = True

  1713.         self.ui.act_canvas_show_internal.blockSignals(True)

  1714.         self.ui.act_canvas_show_external.blockSignals(True)

  1715.         self.ui.act_canvas_show_internal.setChecked(False)

  1716.         self.ui.act_canvas_show_external.setChecked(True)

  1717.         self.ui.act_canvas_show_internal.blockSignals(False)

  1718.         self.ui.act_canvas_show_external.blockSignals(False)

  1719.         self.slot_canvasRefresh()

  1720. 

  1721.     @pyqtSlot()

  1722.     def slot_canvasArrange(self):

  1723.         patchcanvas.arrange()

  1724. 

  1725.     @pyqtSlot()

  1726.     def slot_canvasRefresh(self):

  1727.         patchcanvas.clear()

  1728. 

  1729.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1730.             return

  1731. 

  1732.         if self.host.is_engine_running():

  1733.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1734. 

  1735.         self.updateMiniCanvasLater()

  1736. 

  1737.     @pyqtSlot()

  1738.     def slot_canvasZoomFit(self):

  1739.         self.scene.zoom_fit()

  1740. 

  1741.     @pyqtSlot()

  1742.     def slot_canvasZoomIn(self):

  1743.         self.scene.zoom_in()

  1744. 

  1745.     @pyqtSlot()

  1746.     def slot_canvasZoomOut(self):

  1747.         self.scene.zoom_out()

  1748. 

  1749.     @pyqtSlot()

  1750.     def slot_canvasZoomReset(self):

  1751.         self.scene.zoom_reset()

  1752. 

  1753.     def _canvasImageRender(self, zoom = 1.0):

  1754.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1755.         painter = QPainter(image)

  1756.         painter.save()

  1757.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1758.         self.scene.clearSelection()

  1759.         self.scene.render(painter)

  1760.         painter.restore()

  1761.         del painter

  1762.         return image

  1763. 

  1764.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1765.         iw.setFormat(imgFormat)

  1766.         iw.setCompression(-1)

  1767.         if QT_VERSION >= 0x50500:

  1768.             iw.setOptimizedWrite(True)

  1769.         iw.write(image)

  1770. 

  1771.     @pyqtSlot()

  1772.     def slot_canvasSaveImage(self):

  1773.         if self.fProjectFilename:

  1774.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1775.         else:

  1776.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1777. 

  1778.         fileDialog = QFileDialog(self)

  1779.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1780.         fileDialog.setDirectory(dir)

  1781.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1782.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1783.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1784.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1785.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1786. 

  1787.         ok = fileDialog.exec_()

  1788. 

  1789.         if not ok:

  1790.             return

  1791. 

  1792.         newPath = fileDialog.selectedFiles()

  1793. 

  1794.         if len(newPath) != 1:

  1795.             return

  1796. 

  1797.         newPath = newPath[0]

  1798. 

  1799.         if QT_VERSION >= 0x50900:

  1800.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1801.                 imgFormat = b"JPG"

  1802.             else:

  1803.                 imgFormat = b"PNG"

  1804.         else:

  1805.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1806.                 imgFormat = b"JPG"

  1807.             else:

  1808.                 imgFormat = b"PNG"

  1809. 

  1810.         sender = self.sender()

  1811.         if sender == self.ui.act_canvas_save_image_2x:

  1812.             zoom = 2.0

  1813.         elif sender == self.ui.act_canvas_save_image_4x:

  1814.             zoom = 4.0

  1815.         else:

  1816.             zoom = 1.0

  1817. 

  1818.         image = self._canvasImageRender(zoom)

  1819.         iw = QImageWriter(newPath)

  1820.         self._canvasImageWrite(iw, imgFormat, image)

  1821. 

  1822.     @pyqtSlot()

  1823.     def slot_canvasCopyToClipboard(self):

  1824.         buffer = QBuffer()

  1825.         buffer.open(QIODevice.WriteOnly)

  1826. 

  1827.         image = self._canvasImageRender()

  1828.         iw = QImageWriter(buffer, b"PNG")

  1829.         self._canvasImageWrite(iw, b"PNG", image)

  1830. 

  1831.         buffer.close()

  1832. 

  1833.         mimeData = QMimeData()

  1834.         mimeData.setData("image/png", buffer.buffer());

  1835. 

  1836.         QApplication.clipboard().setMimeData(mimeData)

  1837. 

  1838.     # --------------------------------------------------------------------------------------------------------

  1839.     # Canvas (canvas callbacks)

  1840. 

  1841.     @pyqtSlot()

  1842.     def slot_canvasSelectionChanged(self):

  1843.         self.updateMiniCanvasLater()

  1844. 

  1845.     @pyqtSlot(float)

  1846.     def slot_canvasScaleChanged(self, scale):

  1847.         self.ui.miniCanvasPreview.setViewScale(scale)

  1848. 

  1849.     @pyqtSlot(list)

  1850.     def slot_canvasPluginSelected(self, pluginList):

  1851.         self.ui.keyboard.allNotesOff(False)

  1852.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1853.         self.fSelectedPlugins = pluginList

  1854. 

  1855.     # --------------------------------------------------------------------------------------------------------

  1856.     # Canvas (host callbacks)

  1857. 

  1858.     @pyqtSlot(int, int, int, str)

  1859.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1860.         pcSplit = patchcanvas.SPLIT_UNDEF

  1861.         pcIcon  = patchcanvas.ICON_APPLICATION

  1862. 

  1863.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1864.             pcIcon = patchcanvas.ICON_PLUGIN

  1865.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1866.             pcIcon = patchcanvas.ICON_HARDWARE

  1867.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1868.             pass

  1869.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1870.             pcIcon = patchcanvas.ICON_DISTRHO

  1871.         elif clientIcon == PATCHBAY_ICON_FILE:

  1872.             pcIcon = patchcanvas.ICON_FILE

  1873. 

  1874.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1875. 

  1876.         self.updateMiniCanvasLater()

  1877. 

  1878.         if pluginId < 0:

  1879.             return

  1880.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1881.             print("Error mapping plugin to canvas client:", clientName)

  1882.             return

  1883. 

  1884.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1885.             hasCustomUI = False

  1886.             hasInlineDisplay = False

  1887.         else:

  1888.             hints = self.host.get_plugin_info(pluginId)['hints']

  1889.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1890.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1891. 

  1892.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1893. 

  1894.     @pyqtSlot(int)

  1895.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1896.         patchcanvas.removeGroup(clientId)

  1897.         self.updateMiniCanvasLater()

  1898. 

  1899.     @pyqtSlot(int, str)

  1900.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1901.         patchcanvas.renameGroup(clientId, newClientName)

  1902.         self.updateMiniCanvasLater()

  1903. 

  1904.     @pyqtSlot(int, int, int)

  1905.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1906.         pcIcon = patchcanvas.ICON_APPLICATION

  1907. 

  1908.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1909.             pcIcon = patchcanvas.ICON_PLUGIN

  1910.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1911.             pcIcon = patchcanvas.ICON_HARDWARE

  1912.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1913.             pass

  1914.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1915.             pcIcon = patchcanvas.ICON_DISTRHO

  1916.         elif clientIcon == PATCHBAY_ICON_FILE:

  1917.             pcIcon = patchcanvas.ICON_FILE

  1918. 

  1919.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1920.         self.updateMiniCanvasLater()

  1921. 

  1922.         if pluginId < 0:

  1923.             return

  1924.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1925.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1926.             return

  1927. 

  1928.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1929.             hasCustomUI = False

  1930.             hasInlineDisplay = False

  1931.         else:

  1932.             hints = self.host.get_plugin_info(pluginId)['hints']

  1933.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1934.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1935. 

  1936.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1937. 

  1938.     @pyqtSlot(int, int, int, int, int)

  1939.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1940.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1941.             patchcanvas.splitGroup(clientId)

  1942.         else:

  1943.             patchcanvas.joinGroup(clientId)

  1944.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1945.         self.updateMiniCanvasLater()

  1946. 

  1947.     @pyqtSlot(int, int, int, int, str)

  1948.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1949.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1950.             portMode = patchcanvas.PORT_MODE_INPUT

  1951.         else:

  1952.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1953. 

  1954.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1955.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1956.             isAlternate = False

  1957.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1958.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1959.             isAlternate = False

  1960.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1961.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1962.             isAlternate = False

  1963.         else:

  1964.             portType    = patchcanvas.PORT_TYPE_NULL

  1965.             isAlternate = False

  1966. 

  1967.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1968.         self.updateMiniCanvasLater()

  1969. 

  1970.     @pyqtSlot(int, int)

  1971.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1972.         patchcanvas.removePort(groupId, portId)

  1973.         self.updateMiniCanvasLater()

  1974. 

  1975.     @pyqtSlot(int, int, int, int, str)

  1976.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1977.         patchcanvas.renamePort(groupId, portId, newPortName)

  1978.         self.updateMiniCanvasLater()

  1979. 

  1980.     @pyqtSlot(int, int, int, str)

  1981.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1982.         # TODO

  1983.         pass

  1984. 

  1985.     @pyqtSlot(int, int)

  1986.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1987.         # TODO

  1988.         pass

  1989. 

  1990.     @pyqtSlot(int, int, int, str)

  1991.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1992.         # TODO

  1993.         pass

  1994. 

  1995.     @pyqtSlot(int, int, int, int, int)

  1996.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1997.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1998.         self.updateMiniCanvasLater()

  1999. 

  2000.     @pyqtSlot(int, int, int)

  2001.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  2002.         patchcanvas.disconnectPorts(connectionId)

  2003.         self.updateMiniCanvasLater()

  2004. 

  2005.     # --------------------------------------------------------------------------------------------------------

  2006.     # Settings

  2007. 

  2008.     def saveSettings(self):

  2009.         settings = QSafeSettings()

  2010. 

  2011.         settings.setValue("Geometry", self.saveGeometry())

  2012.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  2013.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  2014. 

  2015.         diskFolders = []

  2016. 

  2017.         for i in range(self.ui.cb_disk.count()):

  2018.             diskFolders.append(self.ui.cb_disk.itemData(i))

  2019. 

  2020.         settings.setValue("DiskFolders", diskFolders)

  2021.         settings.setValue("LastBPM", self.fLastTransportBPM)

  2022. 

  2023.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  2024.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  2025.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  2026.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  2027. 

  2028.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  2029.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  2030. 

  2031.         return settings

  2032. 

  2033.     def loadSettings(self, firstTime):

  2034.         settings = QSafeSettings()

  2035. 

  2036.         if self.fPluginListDialog is not None:

  2037.             gCarla.felib.destroyPluginListDialog(self.fPluginListDialog)

  2038.             self.fPluginListDialog = None

  2039. 

  2040.         if firstTime:

  2041.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  2042.             if not geometry.isNull():

  2043.                 self.restoreGeometry(geometry)

  2044. 

  2045.             showToolbar = settings.value("ShowToolbar", True, bool)

  2046.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  2047.             self.ui.toolBar.blockSignals(True)

  2048.             self.ui.toolBar.setEnabled(showToolbar)

  2049.             self.ui.toolBar.setVisible(showToolbar)

  2050.             self.ui.toolBar.blockSignals(False)

  2051. 

  2052.             #if settings.contains("SplitterState"):

  2053.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  2054.             #else:

  2055.                 #self.ui.splitter.setSizes([210, 99999])

  2056. 

  2057.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  2058.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  2059.             self.slot_showSidePanel(showSidePanel)

  2060. 

  2061.             diskFolders = settings.value("DiskFolders", [HOME], list)

  2062. 

  2063.             self.ui.cb_disk.setItemData(0, HOME)

  2064. 

  2065.             for i in range(len(diskFolders)):

  2066.                 if i == 0: continue

  2067.                 folder = diskFolders[i]

  2068.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  2069. 

  2070.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  2071.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  2072. 

  2073.             showMeters = settings.value("ShowMeters", True, bool)

  2074.             self.ui.act_settings_show_meters.setChecked(showMeters)

  2075.             self.ui.peak_in.setVisible(showMeters)

  2076.             self.ui.peak_out.setVisible(showMeters)

  2077. 

  2078.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  2079.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  2080.             self.ui.scrollArea.setVisible(showKeyboard)

  2081. 

  2082.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  2083.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  2084. 

  2085.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  2086. 

  2087.         # TODO - complete this

  2088.         oldSettings = self.fSavedSettings

  2089. 

  2090.         if self.host.audioDriverForced is not None:

  2091.             audioDriver = self.host.audioDriverForced

  2092.         else:

  2093.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  2094. 

  2095.         audioDriverPrefix = CARLA_KEY_ENGINE_DRIVER_PREFIX + audioDriver

  2096. 

  2097.         self.fSavedSettings = {

  2098.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  2099.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  2100.             CARLA_KEY_MAIN_CLASSIC_SKIN:        settings.value(CARLA_KEY_MAIN_CLASSIC_SKIN,        CARLA_DEFAULT_MAIN_CLASSIC_SKIN,        bool),

  2101.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  2102.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  2103.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  2104.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  2105.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  2106.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  2107.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  2108.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  2109.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  2110.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  2111.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  2112.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  2113.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  2114.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  2115.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  2116.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  2117. 

  2118.             # engine

  2119.             CARLA_KEY_ENGINE_AUDIO_DRIVER: audioDriver,

  2120.             CARLA_KEY_ENGINE_AUDIO_DEVICE: settings.value(audioDriverPrefix+"/Device", "", str),

  2121.             CARLA_KEY_ENGINE_BUFFER_SIZE: settings.value(audioDriverPrefix+"/BufferSize", CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int),

  2122.             CARLA_KEY_ENGINE_SAMPLE_RATE: settings.value(audioDriverPrefix+"/SampleRate", CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int),

  2123.             CARLA_KEY_ENGINE_TRIPLE_BUFFER: settings.value(audioDriverPrefix+"/TripleBuffer", CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool),

  2124. 

  2125.             # file paths

  2126.             CARLA_KEY_PATHS_AUDIO: splitter.join(settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)),

  2127.             CARLA_KEY_PATHS_MIDI: splitter.join(settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)),

  2128. 

  2129.             # plugin paths

  2130.             CARLA_KEY_PATHS_LADSPA: splitter.join(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)),

  2131.             CARLA_KEY_PATHS_DSSI: splitter.join(settings.value(CARLA_KEY_PATHS_DSSI, CARLA_DEFAULT_DSSI_PATH, list)),

  2132.             CARLA_KEY_PATHS_LV2: splitter.join(settings.value(CARLA_KEY_PATHS_LV2, CARLA_DEFAULT_LV2_PATH, list)),

  2133.             CARLA_KEY_PATHS_VST2: splitter.join(settings.value(CARLA_KEY_PATHS_VST2, CARLA_DEFAULT_VST2_PATH, list)),

  2134.             CARLA_KEY_PATHS_VST3: splitter.join(settings.value(CARLA_KEY_PATHS_VST3, CARLA_DEFAULT_VST3_PATH, list)),

  2135.             CARLA_KEY_PATHS_SF2: splitter.join(settings.value(CARLA_KEY_PATHS_SF2, CARLA_DEFAULT_SF2_PATH, list)),

  2136.             CARLA_KEY_PATHS_SFZ: splitter.join(settings.value(CARLA_KEY_PATHS_SFZ, CARLA_DEFAULT_SFZ_PATH, list)),

  2137.             CARLA_KEY_PATHS_JSFX: splitter.join(settings.value(CARLA_KEY_PATHS_JSFX, CARLA_DEFAULT_JSFX_PATH, list)),

  2138.             CARLA_KEY_PATHS_CLAP: splitter.join(settings.value(CARLA_KEY_PATHS_CLAP, CARLA_DEFAULT_CLAP_PATH, list)),

  2139. 

  2140.             # osc

  2141.             CARLA_KEY_OSC_ENABLED: settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool),

  2142.             CARLA_KEY_OSC_TCP_PORT_ENABLED: settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool),

  2143.             CARLA_KEY_OSC_TCP_PORT_RANDOM: settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool),

  2144.             CARLA_KEY_OSC_TCP_PORT_NUMBER: settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int),

  2145.             CARLA_KEY_OSC_UDP_PORT_ENABLED: settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool),

  2146.             CARLA_KEY_OSC_UDP_PORT_RANDOM: settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool),

  2147.             CARLA_KEY_OSC_UDP_PORT_NUMBER: settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int),

  2148. 

  2149.             # wine

  2150.             CARLA_KEY_WINE_EXECUTABLE: settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str),

  2151.             CARLA_KEY_WINE_AUTO_PREFIX: settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool),

  2152.             CARLA_KEY_WINE_FALLBACK_PREFIX: settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str),

  2153.             CARLA_KEY_WINE_RT_PRIO_ENABLED: settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool),

  2154.             CARLA_KEY_WINE_BASE_RT_PRIO: settings.value(CARLA_KEY_WINE_BASE_RT_PRIO, CARLA_DEFAULT_WINE_BASE_RT_PRIO, int),

  2155.             CARLA_KEY_WINE_SERVER_RT_PRIO: settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int),

  2156. 

  2157.             # experimental switches

  2158.             CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES:

  2159.                 settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool),

  2160.             CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES:

  2161.                 settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool),

  2162.         }

  2163. 

  2164.         if not self.host.isControl:

  2165.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  2166.         else:

  2167.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  2168. 

  2169.         settings2 = QSafeSettings("falkTX", "Carla2")

  2170. 

  2171.         if self.host.experimental:

  2172.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  2173.             self.ui.act_plugin_add_jack.setVisible(visible)

  2174.         else:

  2175.             self.ui.act_plugin_add_jack.setVisible(False)

  2176. 

  2177.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  2178. 

  2179.         setEngineSettings(self.host, self.fSavedSettings)

  2180.         self.restartTimersIfNeeded()

  2181. 

  2182.         if oldSettings.get(CARLA_KEY_MAIN_CLASSIC_SKIN, None) not in (self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN], None):

  2183.             newSkin = "classic" if self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN] else None

  2184. 

  2185.             for pitem in self.fPluginList:

  2186.                 if pitem is None:

  2187.                     continue

  2188.                 pitem.recreateWidget(newSkin = newSkin)

  2189. 

  2190.         return settings

  2191. 

  2192.     # --------------------------------------------------------------------------------------------------------

  2193.     # Settings (helpers)

  2194. 

  2195.     def enableTransport(self, enabled):

  2196.         self.ui.group_transport_controls.setEnabled(enabled)

  2197.         self.ui.group_transport_settings.setEnabled(enabled)

  2198. 

  2199.     @pyqtSlot()

  2200.     def slot_restoreCanvasScrollbarValues(self):

  2201.         settings = QSafeSettings()

  2202.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  2203.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  2204.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2205.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2206. 

  2207.     # --------------------------------------------------------------------------------------------------------

  2208.     # Settings (menu actions)

  2209. 

  2210.     @pyqtSlot(bool)

  2211.     def slot_showSidePanel(self, yesNo):

  2212.         self.ui.dockWidget.setEnabled(yesNo)

  2213.         self.ui.dockWidget.setVisible(yesNo)

  2214. 

  2215.     @pyqtSlot(bool)

  2216.     def slot_showToolbar(self, yesNo):

  2217.         self.ui.toolBar.blockSignals(True)

  2218.         self.ui.toolBar.setEnabled(yesNo)

  2219.         self.ui.toolBar.setVisible(yesNo)

  2220.         self.ui.toolBar.blockSignals(False)

  2221. 

  2222.     @pyqtSlot(bool)

  2223.     def slot_showCanvasMeters(self, yesNo):

  2224.         self.ui.peak_in.setVisible(yesNo)

  2225.         self.ui.peak_out.setVisible(yesNo)

  2226.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2227. 

  2228.     @pyqtSlot(bool)

  2229.     def slot_showCanvasKeyboard(self, yesNo):

  2230.         self.ui.scrollArea.setVisible(yesNo)

  2231.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2232. 

  2233.     @pyqtSlot()

  2234.     def slot_configureCarla(self):

  2235.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2236.         if not dialog.exec_():

  2237.             return

  2238. 

  2239.         self.loadSettings(False)

  2240. 

  2241.         if self.fWithCanvas:

  2242.             patchcanvas.clear()

  2243.             self.setupCanvas()

  2244.             self.slot_miniCanvasCheckAll()

  2245. 

  2246.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2247.             pass

  2248.         elif self.host.is_engine_running():

  2249.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2250. 

  2251.     # --------------------------------------------------------------------------------------------------------

  2252.     # About (menu actions)

  2253. 

  2254.     @pyqtSlot()

  2255.     def slot_aboutCarla(self):

  2256.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2257. 

  2258.     @pyqtSlot()

  2259.     def slot_aboutJuce(self):

  2260.         gCarla.felib.createAndExecAboutJuceDialog(self.fParentOrSelf)

  2261. 

  2262.     @pyqtSlot()

  2263.     def slot_aboutQt(self):

  2264.         QApplication.instance().aboutQt()

  2265. 

  2266.     # --------------------------------------------------------------------------------------------------------

  2267.     # Disk (menu actions)

  2268. 

  2269.     @pyqtSlot(int)

  2270.     def slot_diskFolderChanged(self, index):

  2271.         if index < 0:

  2272.             return

  2273.         elif index == 0:

  2274.             filename = HOME

  2275.             self.ui.b_disk_remove.setEnabled(False)

  2276.         else:

  2277.             filename = self.ui.cb_disk.itemData(index)

  2278.             self.ui.b_disk_remove.setEnabled(True)

  2279. 

  2280.         self.fDirModel.setRootPath(filename)

  2281.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2282. 

  2283.     @pyqtSlot()

  2284.     def slot_diskFolderAdd(self):

  2285.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2286. 

  2287.         if newPath:

  2288.             if newPath[-1] == os.sep:

  2289.                 newPath = newPath[:-1]

  2290.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2291.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2292.             self.ui.b_disk_remove.setEnabled(True)

  2293. 

  2294.     @pyqtSlot()

  2295.     def slot_diskFolderRemove(self):

  2296.         index = self.ui.cb_disk.currentIndex()

  2297. 

  2298.         if index <= 0:

  2299.             return

  2300. 

  2301.         self.ui.cb_disk.removeItem(index)

  2302. 

  2303.         if self.ui.cb_disk.currentIndex() == 0:

  2304.             self.ui.b_disk_remove.setEnabled(False)

  2305. 

  2306.     @pyqtSlot(QModelIndex)

  2307.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2308.         filename = self.fDirModel.filePath(modelIndex)

  2309. 

  2310.         if not self.ui.listWidget.isDragUrlValid(filename):

  2311.             return

  2312. 

  2313.         if not self.host.load_file(filename):

  2314.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2315.                              self.tr("Failed to load file"),

  2316.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2317.             return

  2318. 

  2319.         if filename.endswith(".carxp"):

  2320.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2321. 

  2322.     # --------------------------------------------------------------------------------------------------------

  2323.     # Transport

  2324. 

  2325.     def refreshTransport(self, forced = False):

  2326.         if not self.ui.l_transport_time.isVisible():

  2327.             return

  2328.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2329.             return

  2330. 

  2331.         timeInfo = self.host.get_transport_info()

  2332.         playing  = timeInfo['playing']

  2333.         frame    = timeInfo['frame']

  2334.         bpm      = timeInfo['bpm']

  2335. 

  2336.         if playing != self.fLastTransportState or forced:

  2337.             if playing:

  2338.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2339.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2340.                 else:

  2341.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2342.                 self.ui.b_transport_play.setChecked(True)

  2343.                 self.ui.b_transport_play.setIcon(icon)

  2344.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2345.             else:

  2346.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2347.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2348.                 else:

  2349.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2350.                 self.ui.b_transport_play.setChecked(False)

  2351.                 self.ui.b_transport_play.setIcon(icon)

  2352.                 #self.ui.b_play.setText(self.tr("&Play"))

  2353. 

  2354.             self.fLastTransportState = playing

  2355. 

  2356.         if frame != self.fLastTransportFrame or forced:

  2357.             self.fLastTransportFrame = frame

  2358. 

  2359.             time = frame / self.fSampleRate

  2360.             secs =  time % 60

  2361.             mins = (time / 60) % 60

  2362.             hrs  = (time / 3600) % 60

  2363.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2364. 

  2365.             frame1 =  frame % 1000

  2366.             frame2 = (frame / 1000) % 1000

  2367.             frame3 = (frame / 1000000) % 1000

  2368.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2369. 

  2370.             bar  = timeInfo['bar']

  2371.             beat = timeInfo['beat']

  2372.             tick = timeInfo['tick']

  2373.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2374. 

  2375.         if bpm != self.fLastTransportBPM or forced:

  2376.             self.fLastTransportBPM = bpm

  2377. 

  2378.             if bpm > 0.0:

  2379.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2380.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2381.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2382.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2383.             else:

  2384.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2385. 

  2386.     # --------------------------------------------------------------------------------------------------------

  2387.     # Transport (menu actions)

  2388. 

  2389.     @pyqtSlot(bool)

  2390.     def slot_transportPlayPause(self, toggled):

  2391.         if self.host.isPlugin or not self.host.is_engine_running():

  2392.             return

  2393. 

  2394.         if toggled:

  2395.             self.host.transport_play()

  2396.         else:

  2397.             self.host.transport_pause()

  2398. 

  2399.         self.refreshTransport()

  2400. 

  2401.     @pyqtSlot()

  2402.     def slot_transportStop(self):

  2403.         if self.host.isPlugin or not self.host.is_engine_running():

  2404.             return

  2405. 

  2406.         self.host.transport_pause()

  2407.         self.host.transport_relocate(0)

  2408. 

  2409.         self.refreshTransport()

  2410. 

  2411.     @pyqtSlot()

  2412.     def slot_transportBackwards(self):

  2413.         if self.host.isPlugin or not self.host.is_engine_running():

  2414.             return

  2415. 

  2416.         newFrame = self.host.get_current_transport_frame() - 100000

  2417. 

  2418.         if newFrame < 0:

  2419.             newFrame = 0

  2420. 

  2421.         self.host.transport_relocate(newFrame)

  2422. 

  2423.     @pyqtSlot(float)

  2424.     def slot_transportBpmChanged(self, newValue):

  2425.         self.host.transport_bpm(newValue)

  2426. 

  2427.     @pyqtSlot()

  2428.     def slot_transportForwards(self):

  2429.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2430.             return

  2431. 

  2432.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2433.         self.host.transport_relocate(newFrame)

  2434. 

  2435.     @pyqtSlot(bool)

  2436.     def slot_transportJackEnabled(self, clicked):

  2437.         if not self.host.is_engine_running():

  2438.             return

  2439.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2440.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2441.                                     self.host.transportMode,

  2442.                                     self.host.transportExtra)

  2443. 

  2444.     @pyqtSlot(bool)

  2445.     def slot_transportLinkEnabled(self, clicked):

  2446.         if not self.host.is_engine_running():

  2447.             return

  2448.         extra = ":link:" if clicked else ""

  2449.         self.host.transportExtra = extra

  2450.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2451.                                     self.host.transportMode,

  2452.                                     self.host.transportExtra)

  2453. 

  2454.     # --------------------------------------------------------------------------------------------------------

  2455.     # Other

  2456. 

  2457.     @pyqtSlot(bool)

  2458.     def slot_xrunClear(self):

  2459.         self.host.clear_engine_xruns()

  2460. 

  2461.     # --------------------------------------------------------------------------------------------------------

  2462.     # Canvas scrollbars

  2463. 

  2464.     @pyqtSlot(int)

  2465.     def slot_horizontalScrollBarChanged(self, value):

  2466.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2467.         if maximum == 0:

  2468.             xp = 0

  2469.         else:

  2470.             xp = float(value) / maximum

  2471.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2472.         self.updateCanvasInitialPos()

  2473. 

  2474.     @pyqtSlot(int)

  2475.     def slot_verticalScrollBarChanged(self, value):

  2476.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2477.         if maximum == 0:

  2478.             yp = 0

  2479.         else:

  2480.             yp = float(value) / maximum

  2481.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2482.         self.updateCanvasInitialPos()

  2483. 

  2484.     # --------------------------------------------------------------------------------------------------------

  2485.     # Canvas keyboard

  2486. 

  2487.     @pyqtSlot(int)

  2488.     def slot_noteOn(self, note):

  2489.         if self.fPluginCount == 0:

  2490.             return

  2491. 

  2492.         for pluginId in self.fSelectedPlugins:

  2493.             self.host.send_midi_note(pluginId, 0, note, 100)

  2494. 

  2495.             pedit = self.getPluginEditDialog(pluginId)

  2496.             pedit.noteOn(0, note, 100)

  2497. 

  2498.     @pyqtSlot(int)

  2499.     def slot_noteOff(self, note):

  2500.         if self.fPluginCount == 0:

  2501.             return

  2502. 

  2503.         for pluginId in self.fSelectedPlugins:

  2504.             self.host.send_midi_note(pluginId, 0, note, 0)

  2505. 

  2506.             pedit = self.getPluginEditDialog(pluginId)

  2507.             pedit.noteOff(0, note)

  2508. 

  2509.     # --------------------------------------------------------------------------------------------------------

  2510.     # Canvas keyboard (host callbacks)

  2511. 

  2512.     @pyqtSlot(int, int, int, int)

  2513.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2514.         if pluginId in self.fSelectedPlugins:

  2515.             self.ui.keyboard.sendNoteOn(note, False)

  2516. 

  2517.     @pyqtSlot(int, int, int)

  2518.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2519.         if pluginId in self.fSelectedPlugins:

  2520.             self.ui.keyboard.sendNoteOff(note, False)

  2521. 

  2522.     # --------------------------------------------------------------------------------------------------------

  2523. 

  2524.     @pyqtSlot(int)

  2525.     def slot_handleUpdateCallback(self, pluginId):

  2526.         pitem = self.getPluginItem(pluginId)

  2527. 

  2528.         if pitem is None:

  2529.             return

  2530. 

  2531.         wasCompacted = pitem.isCompacted()

  2532.         isCompacted  = wasCompacted

  2533. 

  2534.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2535.         if not check:

  2536.             return

  2537.         isCompacted = bool(check == "true")

  2538. 

  2539.         if wasCompacted == isCompacted:

  2540.             return

  2541. 

  2542.         pitem.recreateWidget(True)

  2543. 

  2544.     # --------------------------------------------------------------------------------------------------------

  2545.     # MiniCanvas stuff

  2546. 

  2547.     @pyqtSlot()

  2548.     def slot_miniCanvasCheckAll(self):

  2549.         self.slot_miniCanvasCheckSize()

  2550.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2551.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2552. 

  2553.     @pyqtSlot()

  2554.     def slot_miniCanvasCheckSize(self):

  2555.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2556.             return

  2557. 

  2558.         currentIndex = self.ui.tabWidget.currentIndex()

  2559. 

  2560.         if currentIndex == 1:

  2561.             width  = self.ui.graphicsView.width()

  2562.             height = self.ui.graphicsView.height()

  2563.         else:

  2564.             self.ui.tabWidget.blockSignals(True)

  2565.             self.ui.tabWidget.setCurrentIndex(1)

  2566.             width  = self.ui.graphicsView.width()

  2567.             height = self.ui.graphicsView.height()

  2568.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2569.             self.ui.tabWidget.blockSignals(False)

  2570. 

  2571.         self.scene.updateLimits()

  2572. 

  2573.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2574. 

  2575.     @pyqtSlot(float, float)

  2576.     def slot_miniCanvasMoved(self, xp, yp):

  2577.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2578.         vsb = self.ui.graphicsView.verticalScrollBar()

  2579.         hsb.setValue(xp * hsb.maximum())

  2580.         vsb.setValue(yp * vsb.maximum())

  2581.         self.updateCanvasInitialPos()

  2582. 

  2583.     # --------------------------------------------------------------------------------------------------------

  2584.     # Logs autoscroll, save and clear

  2585. 

  2586.     @pyqtSlot(int)

  2587.     def slot_toggleLogAutoscroll(self, checkState):

  2588.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2589.         if self.autoscrollOnNewLog:

  2590.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2591. 

  2592.     @pyqtSlot(int)

  2593.     def slot_logSliderMoved(self, slider_pos):

  2594.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2595.             self.lastLogSliderPos = slider_pos

  2596.         else:

  2597.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2598. 

  2599.     @pyqtSlot()

  2600.     def slot_logButtonsState(self, enabled=True):

  2601.         self.ui.logs_clear.setEnabled(enabled)

  2602.         self.ui.logs_save.setEnabled(enabled)

  2603. 

  2604.     @pyqtSlot()

  2605.     def slot_logSave(self):

  2606.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2607.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2608. 

  2609.         if not filename:

  2610.             return

  2611. 

  2612.         try:

  2613.             with open(filename, "w") as logfile:

  2614.                 logfile.write(self.ui.text_logs.toPlainText())

  2615.                 logfile.close()

  2616.         except:

  2617.             return

  2618. 

  2619.     @pyqtSlot()

  2620.     def slot_logClear(self):

  2621.         self.ui.text_logs.clear()

  2622.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2623.         self.slot_logButtonsState(False)

  2624. 

  2625.     # --------------------------------------------------------------------------------------------------------

  2626.     # Timers

  2627. 

  2628.     def startTimers(self):

  2629.         if self.fIdleTimerFast == 0:

  2630.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2631. 

  2632.         if self.fIdleTimerSlow == 0:

  2633.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2634. 

  2635.     def restartTimersIfNeeded(self):

  2636.         if self.fIdleTimerFast != 0:

  2637.             self.killTimer(self.fIdleTimerFast)

  2638.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2639. 

  2640.         if self.fIdleTimerSlow != 0:

  2641.             self.killTimer(self.fIdleTimerSlow)

  2642.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2643. 

  2644.     def killTimers(self):

  2645.         if self.fIdleTimerFast != 0:

  2646.             self.killTimer(self.fIdleTimerFast)

  2647.             self.fIdleTimerFast = 0

  2648. 

  2649.         if self.fIdleTimerSlow != 0:

  2650.             self.killTimer(self.fIdleTimerSlow)

  2651.             self.fIdleTimerSlow = 0

  2652. 

  2653.     # --------------------------------------------------------------------------------------------------------

  2654.     # Misc

  2655. 

  2656.     @pyqtSlot(bool)

  2657.     def slot_toolbarVisibilityChanged(self, visible):

  2658.         self.ui.toolBar.blockSignals(True)

  2659.         self.ui.toolBar.setEnabled(visible)

  2660.         self.ui.toolBar.blockSignals(False)

  2661.         self.ui.act_settings_show_toolbar.setChecked(visible)

  2662. 

  2663.     @pyqtSlot(int)

  2664.     def slot_tabChanged(self, index):

  2665.         if index != 1:

  2666.             return

  2667. 

  2668.         self.ui.graphicsView.setFocus()

  2669. 

  2670.     @pyqtSlot(int)

  2671.     def slot_handleReloadAllCallback(self, pluginId):

  2672.         if pluginId >= self.fPluginCount:

  2673.             return

  2674. 

  2675.         pitem = self.fPluginList[pluginId]

  2676.         if pitem is None:

  2677.             return

  2678. 

  2679.         pitem.recreateWidget()

  2680. 

  2681.     # --------------------------------------------------------------------------------------------------------

  2682. 

  2683.     @pyqtSlot(int, int, str)

  2684.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2685.         if opcode == NSM_CALLBACK_INIT:

  2686.             return

  2687. 

  2688.         # Error

  2689.         elif opcode == NSM_CALLBACK_ERROR:

  2690.             pass

  2691. 

  2692.         # Reply

  2693.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2694.             self.fFirstEngineInit    = False

  2695.             self.fSessionManagerName = valueStr

  2696.             self.setProperWindowTitle()

  2697. 

  2698.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2699.             if (valueInt & (1 << 1)) == 0x0:

  2700.                 self.fWindowCloseHideGui = False

  2701.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2702.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2703.                 self.show()

  2704. 

  2705.         # Open

  2706.         elif opcode == NSM_CALLBACK_OPEN:

  2707.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2708.             self.setProperWindowTitle()

  2709. 

  2710.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2711.             self.slot_engineStop(True)

  2712.             return

  2713. 

  2714.         # Save

  2715.         elif opcode == NSM_CALLBACK_SAVE:

  2716.             self.saveProjectNow()

  2717. 

  2718.         # Session is Loaded

  2719.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2720.             pass

  2721. 

  2722.         # Show Optional Gui

  2723.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2724.             self.show()

  2725. 

  2726.         # Hide Optional Gui

  2727.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2728.             self.hideForNSM()

  2729. 

  2730.         # Set client name

  2731.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2732.             self.fClientName = valueStr

  2733.             return

  2734. 

  2735.         self.host.nsm_ready(opcode)

  2736. 

  2737.     # --------------------------------------------------------------------------------------------------------

  2738. 

  2739.     def fixLogText(self, text):

  2740.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2741. 

  2742.     @pyqtSlot(int, int, int, int, float, str)

  2743.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2744.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2745. 

  2746.     @pyqtSlot(str)

  2747.     def slot_handleInfoCallback(self, info):

  2748.         QMessageBox.information(self, "Information", info)

  2749. 

  2750.     @pyqtSlot(str)

  2751.     def slot_handleErrorCallback(self, error):

  2752.         QMessageBox.critical(self, "Error", error)

  2753. 

  2754.     @pyqtSlot()

  2755.     def slot_handleQuitCallback(self):

  2756.         self.fIsProjectLoading = False

  2757.         self.killTimers()

  2758.         self.removeAllPlugins()

  2759.         self.projectLoadingFinished(False)

  2760. 

  2761.     @pyqtSlot(int)

  2762.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2763.         # FIXME

  2764.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2765.             patchcanvas.redrawPluginGroup(pluginId)

  2766. 

  2767.     # --------------------------------------------------------------------------------------------------------

  2768. 

  2769.     @pyqtSlot()

  2770.     def slot_handleSIGUSR1(self):

  2771.         print("Got SIGUSR1 -> Saving project now")

  2772.         self.slot_fileSave()

  2773. 

  2774.     @pyqtSlot()

  2775.     def slot_handleSIGTERM(self):

  2776.         print("Got SIGTERM -> Closing now")

  2777.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2778.         self.close()

  2779. 

  2780.     # --------------------------------------------------------------------------------------------------------

  2781.     # Internal stuff

  2782. 

  2783.     def getExtraPtr(self, plugin):

  2784.         ptype = plugin['type']

  2785. 

  2786.         if ptype == PLUGIN_LADSPA:

  2787.             uniqueId = plugin['uniqueId']

  2788. 

  2789.             self.maybeLoadRDFs()

  2790. 

  2791.             for rdfItem in self.fLadspaRdfList:

  2792.                 if rdfItem.UniqueID == uniqueId:

  2793.                     return pointer(rdfItem)

  2794. 

  2795.         elif ptype == PLUGIN_SF2:

  2796.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2797.                 return self._true

  2798. 

  2799.         return None

  2800. 

  2801.     def maybeLoadRDFs(self):

  2802.         if not self.fLadspaRdfNeedsUpdate:

  2803.             return

  2804. 

  2805.         self.fLadspaRdfNeedsUpdate = False

  2806.         self.fLadspaRdfList = []

  2807. 

  2808.         if not haveLRDF:

  2809.             return

  2810. 

  2811.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2812.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2813. 

  2814.         if os.path.exists(frLadspaFile):

  2815.             frLadspa = open(frLadspaFile, 'r')

  2816. 

  2817.             try:

  2818.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2819.             except:

  2820.                 pass

  2821. 

  2822.             frLadspa.close()

  2823. 

  2824.     # --------------------------------------------------------------------------------------------------------

  2825. 

  2826.     def getPluginCount(self):

  2827.         return self.fPluginCount

  2828. 

  2829.     def getPluginItem(self, pluginId):

  2830.         if pluginId >= self.fPluginCount:

  2831.             return None

  2832. 

  2833.         pitem = self.fPluginList[pluginId]

  2834.         if pitem is None:

  2835.             return None

  2836.         #if False:

  2837.             #return CarlaRackItem(self, 0, False)

  2838. 

  2839.         return pitem

  2840. 

  2841.     def getPluginEditDialog(self, pluginId):

  2842.         if pluginId >= self.fPluginCount:

  2843.             return None

  2844. 

  2845.         pitem = self.fPluginList[pluginId]

  2846.         if pitem is None:

  2847.             return None

  2848.         if False:

  2849.             return PluginEdit(self, self.host, 0)

  2850. 

  2851.         return pitem.getEditDialog()

  2852. 

  2853.     def getPluginSlotWidget(self, pluginId):

  2854.         if pluginId >= self.fPluginCount:

  2855.             return None

  2856. 

  2857.         pitem = self.fPluginList[pluginId]

  2858.         if pitem is None:

  2859.             return None

  2860.         #if False:

  2861.             #return AbstractPluginSlot()

  2862. 

  2863.         return pitem.getWidget()

  2864. 

  2865.     # --------------------------------------------------------------------------------------------------------

  2866. 

  2867.     def waitForPendingEvents(self):

  2868.         pass

  2869. 

  2870.     # --------------------------------------------------------------------------------------------------------

  2871.     # show/hide event

  2872. 

  2873.     def showEvent(self, event):

  2874.         self.getAndRefreshRuntimeInfo()

  2875.         self.refreshTransport(True)

  2876.         QMainWindow.showEvent(self, event)

  2877. 

  2878.         if QT_VERSION >= 0x50600:

  2879.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2880.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2881. 

  2882.         # set our gui as parent for all plugins UIs

  2883.         if self.host.manageUIs and not self.host.isControl:

  2884.             if MACOS:

  2885.                 nsViewPtr = int(self.winId())

  2886.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2887.             else:

  2888.                 winIdStr = "%x" % int(self.winId())

  2889.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2890. 

  2891.     def hideEvent(self, event):

  2892.         # disable parent

  2893.         if not self.host.isControl:

  2894.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2895. 

  2896.         QMainWindow.hideEvent(self, event)

  2897. 

  2898.     # --------------------------------------------------------------------------------------------------------

  2899.     # resize event

  2900. 

  2901.     def resizeEvent(self, event):

  2902.         QMainWindow.resizeEvent(self, event)

  2903. 

  2904.         if self.fWithCanvas:

  2905.             self.slot_miniCanvasCheckSize()

  2906. 

  2907.     # --------------------------------------------------------------------------------------------------------

  2908.     # timer event

  2909. 

  2910.     def refreshRuntimeInfo(self, load, xruns):

  2911.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2912.         txt2 = "" if (xruns == 1) else "s"

  2913.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2914.         self.ui.pb_dsp_load.setValue(int(load))

  2915. 

  2916.     def getAndRefreshRuntimeInfo(self):

  2917.         if not self.ui.pb_dsp_load.isVisible():

  2918.             return

  2919.         if not self.host.is_engine_running():

  2920.             return

  2921.         info = self.host.get_runtime_engine_info()

  2922.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2923. 

  2924.     def idleFast(self):

  2925.         self.host.engine_idle()

  2926.         self.refreshTransport()

  2927. 

  2928.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2929.             return

  2930. 

  2931.         for pitem in self.fPluginList:

  2932.             if pitem is None:

  2933.                 break

  2934. 

  2935.             pitem.getWidget().idleFast()

  2936. 

  2937.         for pluginId in self.fSelectedPlugins:

  2938.             self.fPeaksCleared = False

  2939.             if self.ui.peak_in.isVisible():

  2940.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2941.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2942.             if self.ui.peak_out.isVisible():

  2943.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2944.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2945.             return

  2946. 

  2947.         if self.fPeaksCleared:

  2948.             return

  2949. 

  2950.         self.fPeaksCleared = True

  2951.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2952.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2953.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2954.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2955. 

  2956.     def idleSlow(self):

  2957.         self.getAndRefreshRuntimeInfo()

  2958. 

  2959.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2960.             return

  2961. 

  2962.         for pitem in self.fPluginList:

  2963.             if pitem is None:

  2964.                 break

  2965. 

  2966.             pitem.getWidget().idleSlow()

  2967. 

  2968.     def timerEvent(self, event):

  2969.         if event.timerId() == self.fIdleTimerFast:

  2970.             self.idleFast()

  2971. 

  2972.         elif event.timerId() == self.fIdleTimerSlow:

  2973.             self.idleSlow()

  2974. 

  2975.         QMainWindow.timerEvent(self, event)

  2976. 

  2977.     # --------------------------------------------------------------------------------------------------------

  2978.     # color/style change event

  2979. 

  2980.     def changeEvent(self, event):

  2981.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2982.             self.updateStyle()

  2983.         QMainWindow.changeEvent(self, event)

  2984. 

  2985.     def updateStyle(self):

  2986.         # Rack padding images setup

  2987.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2988.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2989. 

  2990.         min_value = 0.07

  2991. 

  2992.         if PYQT_VERSION >= 0x50600:

  2993.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2994.         else:

  2995.             value_fix = 1.5

  2996. 

  2997.         rack_pal = self.ui.rack.palette()

  2998.         bg_color = rack_pal.window().color()

  2999.         fg_color = rack_pal.text().color()

  3000.         bg_value = 1.0 - bg_color.blackF()

  3001.         if bg_value != 0.0 and bg_value < min_value:

  3002.             pad_color = bg_color.lighter(int(100*min_value/bg_value*value_fix))

  3003.         else:

  3004.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  3005. 

  3006.         painter = QPainter()

  3007.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  3008. 

  3009.         painter.begin(rack_imgL)

  3010.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  3011.         painter.setBrush(pad_color)

  3012.         painter.drawRect(fillRect)

  3013.         painter.end()

  3014.         rack_pixmapL = QPixmap(rack_imgL)

  3015.         self.imgL_palette = QPalette()

  3016.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  3017.         self.ui.pad_left.setPalette(self.imgL_palette)

  3018.         self.ui.pad_left.setAutoFillBackground(True)

  3019. 

  3020.         painter.begin(rack_imgR)

  3021.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  3022.         painter.setBrush(pad_color)

  3023.         painter.drawRect(fillRect)

  3024.         painter.end()

  3025.         rack_pixmapR = QPixmap(rack_imgR)

  3026.         self.imgR_palette = QPalette()

  3027.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  3028.         self.ui.pad_right.setPalette(self.imgR_palette)

  3029.         self.ui.pad_right.setAutoFillBackground(True)

  3030. 

  3031.         # qt's rgba is actually argb, so convert that

  3032.         bg_color_value = bg_color.rgba()

  3033.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  3034. 

  3035.         fg_color_value = fg_color.rgba()

  3036.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  3037. 

  3038.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  3039.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  3040. 

  3041.     # --------------------------------------------------------------------------------------------------------

  3042.     # paint event

  3043. 

  3044.     #def paintEvent(self, event):

  3045.         #QMainWindow.paintEvent(self, event)

  3046. 

  3047.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  3048.             #return

  3049. 

  3050.         #painter = QPainter(self)

  3051.         #painter.setBrush(QColor(36, 36, 36))

  3052.         #painter.setPen(QColor(62, 62, 62))

  3053.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  3054. 

  3055.     # --------------------------------------------------------------------------------------------------------

  3056.     # close event

  3057. 

  3058.     def shouldIgnoreClose(self):

  3059.         if self.host.isControl or self.host.isPlugin:

  3060.             return False

  3061.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  3062.             return False

  3063.         if self.fWindowCloseHideGui:

  3064.             return False

  3065.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  3066.             return QMessageBox.question(self, self.tr("Quit"),

  3067.                                               self.tr("Are you sure you want to quit Carla?"),

  3068.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  3069.         return False

  3070. 

  3071.     def closeEvent(self, event):

  3072.         if self.shouldIgnoreClose():

  3073.             event.ignore()

  3074.             return

  3075. 

  3076.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  3077.             self.hideForNSM()

  3078.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  3079.             return

  3080. 

  3081.         patchcanvas.handleAllPluginsRemoved()

  3082. 

  3083.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  3084.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  3085.             self.fMacClosingHelper = False

  3086.             event.ignore()

  3087. 

  3088.             for i in reversed(range(self.fPluginCount)):

  3089.                 self.host.show_custom_ui(i, False)

  3090. 

  3091.             QTimer.singleShot(100, self.close)

  3092.             return

  3093. 

  3094.         self.killTimers()

  3095.         self.saveSettings()

  3096. 

  3097.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  3098.             if not self.slot_engineStop(True):

  3099.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  3100.                 event.ignore()

  3101.                 return

  3102. 

  3103.         QMainWindow.closeEvent(self, event)

  3104. 

  3105.         # if we reach this point, fully close ourselves

  3106.         gCarla.gui = None

  3107.         QApplication.instance().quit()

  3108. 

  3109. # ------------------------------------------------------------------------------------------------

  3110. # Canvas callback

  3111. 

  3112. def canvasCallback(action, value1, value2, valueStr):

  3113.     host = gCarla.gui.host

  3114. 

  3115.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  3116.         return

  3117. 

  3118.     if action == patchcanvas.ACTION_GROUP_INFO:

  3119.         pass

  3120. 

  3121.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  3122.         pass

  3123. 

  3124.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  3125.         groupId = value1

  3126.         patchcanvas.splitGroup(groupId)

  3127.         gCarla.gui.updateMiniCanvasLater()

  3128. 

  3129.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  3130.         groupId = value1

  3131.         patchcanvas.joinGroup(groupId)

  3132.         gCarla.gui.updateMiniCanvasLater()

  3133. 

  3134.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  3135.         if gCarla.gui.fIsProjectLoading:

  3136.             return

  3137.         if not host.is_engine_running():

  3138.             return

  3139.         groupId = value1

  3140.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  3141.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  3142.         gCarla.gui.updateMiniCanvasLater()

  3143. 

  3144.     elif action == patchcanvas.ACTION_PORT_INFO:

  3145.         pass

  3146. 

  3147.     elif action == patchcanvas.ACTION_PORT_RENAME:

  3148.         pass

  3149. 

  3150.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  3151.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  3152. 

  3153.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  3154.             print("Connection failed:", host.get_last_error())

  3155. 

  3156.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  3157.         connectionId = value1

  3158. 

  3159.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  3160.             print("Disconnect failed:", host.get_last_error())

  3161. 

  3162.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  3163.         pluginId = value1

  3164. 

  3165.         if not host.clone_plugin(pluginId):

  3166.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3167.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3168. 

  3169.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  3170.         pluginId = value1

  3171.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3172. 

  3173.         if pwidget is not None:

  3174.             pwidget.showEditDialog()

  3175. 

  3176.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  3177.         pluginId = value1

  3178.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3179. 

  3180.         if pwidget is not None:

  3181.             pwidget.showRenameDialog()

  3182. 

  3183.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  3184.         pluginId = value1

  3185.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3186. 

  3187.         if pwidget is not None:

  3188.             pwidget.showReplaceDialog()

  3189. 

  3190.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  3191.         pluginId = value1

  3192. 

  3193.         if not host.remove_plugin(pluginId):

  3194.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3195.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3196. 

  3197.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  3198.         pluginId = value1

  3199.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3200. 

  3201.         if pwidget is not None:

  3202.             pwidget.showCustomUI()

  3203. 

  3204.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  3205.         gCarla.gui.slot_showPluginActionsMenu()

  3206. 

  3207.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  3208.         if gCarla.gui.fIsProjectLoading:

  3209.             return

  3210.         if not host.is_engine_running():

  3211.             return

  3212.         pluginId = value1

  3213.         width, height = [int(v) for v in valueStr.split(":")]

  3214.         return host.render_inline_display(pluginId, width, height)

  3215. 

  3216. # ------------------------------------------------------------------------------------------------------------

  3217. # Engine callback

  3218. 

  3219. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3220.     # kdevelop likes this :)

  3221.     if False: host = CarlaHostNull()

  3222. 

  3223.     valueStr = charPtrToString(valueStr)

  3224. 

  3225.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3226.         host.processMode   = value1

  3227.         host.transportMode = value2

  3228.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3229.         host.processMode   = value1

  3230.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3231.         host.transportMode  = value1

  3232.         host.transportExtra = valueStr

  3233. 

  3234.     if action == ENGINE_CALLBACK_DEBUG:

  3235.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3236.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3237.         host.PluginAddedCallback.emit(pluginId, value1, valueStr)

  3238.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3239.         host.PluginRemovedCallback.emit(pluginId)

  3240.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3241.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3242.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3243.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3244.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3245.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3246.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3247.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3248.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3249.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3250.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3251.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3252.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3253.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3254.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3255.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3256.         host.ProgramChangedCallback.emit(pluginId, value1)

  3257.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3258.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3259.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3260.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3261.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3262.         host.UiStateChangedCallback.emit(pluginId, value1)

  3263.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3264.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3265.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3266.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3267.     elif action == ENGINE_CALLBACK_UPDATE:

  3268.         host.UpdateCallback.emit(pluginId)

  3269.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3270.         host.ReloadInfoCallback.emit(pluginId)

  3271.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3272.         host.ReloadParametersCallback.emit(pluginId)

  3273.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3274.         host.ReloadProgramsCallback.emit(pluginId)

  3275.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3276.         host.ReloadAllCallback.emit(pluginId)

  3277.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3278.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3279.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3280.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3281.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3282.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3283.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3284.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3285.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3286.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3287.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3288.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3289.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3290.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3291.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3292.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3293.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3294.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3295.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3296.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3297.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3298.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3299.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3300.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3301.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3302.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3303.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3304.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3305.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3306.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3307.         host.EngineStoppedCallback.emit()

  3308.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3309.         host.ProcessModeChangedCallback.emit(value1)

  3310.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3311.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3312.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3313.         host.BufferSizeChangedCallback.emit(value1)

  3314.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3315.         host.SampleRateChangedCallback.emit(valuef)

  3316.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3317.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3318.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3319.         host.ProjectLoadFinishedCallback.emit()

  3320.     elif action == ENGINE_CALLBACK_NSM:

  3321.         host.NSMCallback.emit(value1, value2, valueStr)

  3322.     elif action == ENGINE_CALLBACK_IDLE:

  3323.         QApplication.processEvents()

  3324.     elif action == ENGINE_CALLBACK_INFO:

  3325.         host.InfoCallback.emit(valueStr)

  3326.     elif action == ENGINE_CALLBACK_ERROR:

  3327.         host.ErrorCallback.emit(valueStr)

  3328.     elif action == ENGINE_CALLBACK_QUIT:

  3329.         host.QuitCallback.emit()

  3330.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3331.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3332.     else:

  3333.         print("unhandled action", action)

  3334. 

  3335. # ------------------------------------------------------------------------------------------------------------

  3336. # File callback

  3337. 

  3338. def fileCallback(ptr, action, isDir, title, filter):

  3339.     title  = charPtrToString(title)

  3340.     filter = charPtrToString(filter)

  3341. 

  3342.     if action == FILE_CALLBACK_OPEN:

  3343.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3344.     elif action == FILE_CALLBACK_SAVE:

  3345.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3346.     else:

  3347.         ret, ok = ("", "")

  3348. 

  3349.     # FIXME use ok value, test if it works as expected

  3350.     if not ret:

  3351.         return None

  3352. 

  3353.     # FIXME

  3354.     global fileRet

  3355.     fileRet = c_char_p(ret.encode("utf-8"))

  3356.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3357.     return retval.contents.value

  3358. 

  3359. # ------------------------------------------------------------------------------------------------------------

  3360. # Init host

  3361. 

  3362. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3363.     pathBinaries, pathResources = getPaths(libPrefix)

  3364. 

  3365.     # --------------------------------------------------------------------------------------------------------

  3366.     # Fail if binary dir is not found

  3367. 

  3368.     if not os.path.exists(pathBinaries):

  3369.         if failError:

  3370.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3371.             sys.exit(1)

  3372.         return

  3373. 

  3374.     # --------------------------------------------------------------------------------------------------------

  3375.     # Check if we should open main lib as local or global

  3376. 

  3377.     settings = QSafeSettings("falkTX", "Carla2")

  3378. 

  3379.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3380. 

  3381.     # --------------------------------------------------------------------------------------------------------

  3382.     # Set Carla library name

  3383. 

  3384.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3385.     libname   = os.path.join(pathBinaries, libname)

  3386.     felibname = os.path.join(pathBinaries, "libcarla_frontend.%s" % (DLL_EXTENSION))

  3387.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3388. 

  3389.     # --------------------------------------------------------------------------------------------------------

  3390.     # Print info

  3391. 

  3392.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3393.         print("Carla %s started, status:" % VERSION)

  3394.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3395.         print("  Qt version:     %s" % QT_VERSION_STR)

  3396.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3397.         print("  Binary dir:     %s" % pathBinaries)

  3398.         print("  Resources dir:  %s" % pathResources)

  3399. 

  3400.     # --------------------------------------------------------------------------------------------------------

  3401.     # Init host

  3402. 

  3403.     if failError:

  3404.         # no try

  3405.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3406.     else:

  3407.         try:

  3408.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3409.         except:

  3410.             host = CarlaHostQtNull()

  3411. 

  3412.     host.isControl = isControl

  3413.     host.isPlugin  = isPlugin

  3414. 

  3415.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3416.     host.set_file_callback(fileCallback)

  3417. 

  3418.     # If it's a plugin the paths are already set

  3419.     if not isPlugin:

  3420.         host.pathBinaries  = pathBinaries

  3421.         host.pathResources = pathResources

  3422.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3423.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3424. 

  3425.         if not isControl:

  3426.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3427. 

  3428.     # --------------------------------------------------------------------------------------------------------

  3429.     # Init frontend lib

  3430. 

  3431.     if not gCarla.nogui:

  3432.         gCarla.felib = CarlaFrontendLib(felibname)

  3433. 

  3434.     # --------------------------------------------------------------------------------------------------------

  3435.     # Init utils

  3436. 

  3437.     gCarla.utils = CarlaUtils(utilsname)

  3438.     gCarla.utils.set_process_name(os.path.basename(initName))

  3439. 

  3440.     try:

  3441.         sys.stdout.flush()

  3442.     except:

  3443.         pass

  3444. 

  3445.     sys.stdout = CarlaPrint(False)

  3446.     sys.stderr = CarlaPrint(True)

  3447.     sys.excepthook = sys_excepthook

  3448. 

  3449.     # --------------------------------------------------------------------------------------------------------

  3450.     # Done

  3451. 

  3452.     return host

  3453. 

  3454. # ------------------------------------------------------------------------------------------------------------

  3455. # Load host settings

  3456. 

  3457. def loadHostSettings(host):

  3458.     # kdevelop likes this :)

  3459.     if False: host = CarlaHostNull()

  3460. 

  3461.     settings = QSafeSettings("falkTX", "Carla2")

  3462. 

  3463.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3464.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3465.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3466.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3467.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3468.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3469.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3470.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3471.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3472.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3473.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3474.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3475.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3476.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3477. 

  3478.     if host.isPlugin:

  3479.         return

  3480. 

  3481.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3482. 

  3483.     # enums

  3484.     if host.audioDriverForced is None:

  3485.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3486. 

  3487.     if not host.processModeForced:

  3488.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3489. 

  3490.     host.nextProcessMode = host.processMode

  3491. 

  3492.     # --------------------------------------------------------------------------------------------------------

  3493.     # fix things if needed

  3494. 

  3495.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3496.         if LADISH_APP_NAME:

  3497.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3498.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3499. 

  3500.         else:

  3501.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3502. 

  3503.     if gCarla.nogui:

  3504.         host.showLogs = False

  3505. 

  3506.     # --------------------------------------------------------------------------------------------------------

  3507.     # run headless host now if nogui option enabled

  3508. 

  3509.     if gCarla.nogui:

  3510.         runHostWithoutUI(host)

  3511. 

  3512. # ------------------------------------------------------------------------------------------------------------

  3513. # Set host settings

  3514. 

  3515. def setHostSettings(host):

  3516.     # kdevelop likes this :)

  3517.     if False: host = CarlaHostNull()

  3518. 

  3519.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3520.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3521.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3522.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3523.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3524.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3525.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3526.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3527. 

  3528.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3529.         return

  3530. 

  3531.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3532.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3533.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3534. 

  3535.     if not (NSM_URL and host.nsmOK):

  3536.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3537. 

  3538. # ---------------------------------------------------------------------------------------------------------------------

  3539. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3540. 

  3541. def setEngineSettings(host, settings, oscPort = None):

  3542.     # kdevelop likes this :)

  3543.     if False: host = CarlaHostNull()

  3544. 

  3545.     # -----------------------------------------------------------------------------------------------------------------

  3546.     # do nothing if control

  3547. 

  3548.     if host.isControl:

  3549.         return "Control"

  3550. 

  3551.     # -----------------------------------------------------------------------------------------------------------------

  3552.     # fetch settings as needed

  3553. 

  3554.     if settings is None:

  3555.         qsettings = QSafeSettings("falkTX", "Carla2")

  3556. 

  3557.         if host.audioDriverForced is not None:

  3558.             audioDriver = host.audioDriverForced

  3559.         else:

  3560.             audioDriver = qsettings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3561. 

  3562.         audioDriverPrefix = CARLA_KEY_ENGINE_DRIVER_PREFIX + audioDriver

  3563. 

  3564.         settings = {

  3565.             # engine

  3566.             CARLA_KEY_ENGINE_AUDIO_DRIVER: audioDriver,

  3567.             CARLA_KEY_ENGINE_AUDIO_DEVICE: qsettings.value(audioDriverPrefix+"/Device", "", str),

  3568.             CARLA_KEY_ENGINE_BUFFER_SIZE: qsettings.value(audioDriverPrefix+"/BufferSize", CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int),

  3569.             CARLA_KEY_ENGINE_SAMPLE_RATE: qsettings.value(audioDriverPrefix+"/SampleRate", CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int),

  3570.             CARLA_KEY_ENGINE_TRIPLE_BUFFER: qsettings.value(audioDriverPrefix+"/TripleBuffer", CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool),

  3571. 

  3572.             # file paths

  3573.             CARLA_KEY_PATHS_AUDIO: splitter.join(qsettings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)),

  3574.             CARLA_KEY_PATHS_MIDI: splitter.join(qsettings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)),

  3575. 

  3576.             # plugin paths

  3577.             CARLA_KEY_PATHS_LADSPA: splitter.join(qsettings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)),

  3578.             CARLA_KEY_PATHS_DSSI: splitter.join(qsettings.value(CARLA_KEY_PATHS_DSSI, CARLA_DEFAULT_DSSI_PATH, list)),

  3579.             CARLA_KEY_PATHS_LV2: splitter.join(qsettings.value(CARLA_KEY_PATHS_LV2, CARLA_DEFAULT_LV2_PATH, list)),

  3580.             CARLA_KEY_PATHS_VST2: splitter.join(qsettings.value(CARLA_KEY_PATHS_VST2, CARLA_DEFAULT_VST2_PATH, list)),

  3581.             CARLA_KEY_PATHS_VST3: splitter.join(qsettings.value(CARLA_KEY_PATHS_VST3, CARLA_DEFAULT_VST3_PATH, list)),

  3582.             CARLA_KEY_PATHS_SF2: splitter.join(qsettings.value(CARLA_KEY_PATHS_SF2, CARLA_DEFAULT_SF2_PATH, list)),

  3583.             CARLA_KEY_PATHS_SFZ: splitter.join(qsettings.value(CARLA_KEY_PATHS_SFZ, CARLA_DEFAULT_SFZ_PATH, list)),

  3584.             CARLA_KEY_PATHS_JSFX: splitter.join(qsettings.value(CARLA_KEY_PATHS_JSFX, CARLA_DEFAULT_JSFX_PATH, list)),

  3585.             CARLA_KEY_PATHS_CLAP: splitter.join(qsettings.value(CARLA_KEY_PATHS_CLAP, CARLA_DEFAULT_CLAP_PATH, list)),

  3586. 

  3587.             # osc

  3588.             CARLA_KEY_OSC_ENABLED: qsettings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool),

  3589.             CARLA_KEY_OSC_TCP_PORT_ENABLED: qsettings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool),

  3590.             CARLA_KEY_OSC_TCP_PORT_RANDOM: qsettings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool),

  3591.             CARLA_KEY_OSC_TCP_PORT_NUMBER: qsettings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int),

  3592.             CARLA_KEY_OSC_UDP_PORT_ENABLED: qsettings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool),

  3593.             CARLA_KEY_OSC_UDP_PORT_RANDOM: qsettings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool),

  3594.             CARLA_KEY_OSC_UDP_PORT_NUMBER: qsettings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int),

  3595. 

  3596.             # wine

  3597.             CARLA_KEY_WINE_EXECUTABLE: qsettings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str),

  3598.             CARLA_KEY_WINE_AUTO_PREFIX: qsettings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool),

  3599.             CARLA_KEY_WINE_FALLBACK_PREFIX: qsettings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str),

  3600.             CARLA_KEY_WINE_RT_PRIO_ENABLED: qsettings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool),

  3601.             CARLA_KEY_WINE_BASE_RT_PRIO: qsettings.value(CARLA_KEY_WINE_BASE_RT_PRIO, CARLA_DEFAULT_WINE_BASE_RT_PRIO, int),

  3602.             CARLA_KEY_WINE_SERVER_RT_PRIO: qsettings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int),

  3603.         }

  3604. 

  3605.     # -----------------------------------------------------------------------------------------------------------------

  3606.     # main settings

  3607. 

  3608.     setHostSettings(host)

  3609. 

  3610.     # -----------------------------------------------------------------------------------------------------------------

  3611.     # file paths

  3612. 

  3613.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, settings[CARLA_KEY_PATHS_AUDIO])

  3614.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI, settings[CARLA_KEY_PATHS_MIDI])

  3615. 

  3616.     # -----------------------------------------------------------------------------------------------------------------

  3617.     # plugin paths

  3618. 

  3619.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, settings[CARLA_KEY_PATHS_LADSPA])

  3620.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI, settings[CARLA_KEY_PATHS_DSSI])

  3621.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2, settings[CARLA_KEY_PATHS_LV2])

  3622.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2, settings[CARLA_KEY_PATHS_VST2])

  3623.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3, settings[CARLA_KEY_PATHS_VST3])

  3624.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2, settings[CARLA_KEY_PATHS_SF2])

  3625.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ, settings[CARLA_KEY_PATHS_SFZ])

  3626.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_JSFX, settings[CARLA_KEY_PATHS_JSFX])

  3627.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_CLAP, settings[CARLA_KEY_PATHS_CLAP])

  3628. 

  3629.     # -----------------------------------------------------------------------------------------------------------------

  3630.     # don't continue if plugin

  3631. 

  3632.     if host.isPlugin:

  3633.         return "Plugin"

  3634. 

  3635.     # -----------------------------------------------------------------------------------------------------------------

  3636.     # osc settings

  3637. 

  3638.     if oscPort is not None and isinstance(oscPort, int):

  3639.         oscEnabled = True

  3640.         portNumTCP = portNumUDP = oscPort

  3641. 

  3642.     else:

  3643.         oscEnabled = settings[CARLA_KEY_OSC_ENABLED]

  3644. 

  3645.         if not settings[CARLA_KEY_OSC_TCP_PORT_ENABLED]:

  3646.             portNumTCP = -1

  3647.         elif settings[CARLA_KEY_OSC_TCP_PORT_RANDOM]:

  3648.             portNumTCP = 0

  3649.         else:

  3650.             portNumTCP = settings[CARLA_KEY_OSC_TCP_PORT_NUMBER]

  3651. 

  3652.         if not settings[CARLA_KEY_OSC_UDP_PORT_ENABLED]:

  3653.             portNumUDP = -1

  3654.         elif settings[CARLA_KEY_OSC_UDP_PORT_RANDOM]:

  3655.             portNumUDP = 0

  3656.         else:

  3657.             portNumUDP = settings[CARLA_KEY_OSC_UDP_PORT_NUMBER]

  3658. 

  3659.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3660.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3661.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3662. 

  3663.     # -----------------------------------------------------------------------------------------------------------------

  3664.     # wine settings

  3665. 

  3666.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, settings[CARLA_KEY_WINE_EXECUTABLE])

  3667.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if settings[CARLA_KEY_WINE_AUTO_PREFIX] else 0, "")

  3668.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(settings[CARLA_KEY_WINE_FALLBACK_PREFIX]))

  3669.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if settings[CARLA_KEY_WINE_RT_PRIO_ENABLED] else 0, "")

  3670.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, settings[CARLA_KEY_WINE_BASE_RT_PRIO], "")

  3671.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, settings[CARLA_KEY_WINE_SERVER_RT_PRIO], "")

  3672. 

  3673.     # -----------------------------------------------------------------------------------------------------------------

  3674.     # driver and device settings

  3675. 

  3676.     # driver name

  3677.     audioDriver = settings[CARLA_KEY_ENGINE_AUDIO_DRIVER]

  3678. 

  3679.     # Only setup audio things if engine is not running

  3680.     if not host.is_engine_running():

  3681.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3682.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, settings[CARLA_KEY_ENGINE_AUDIO_DEVICE])

  3683. 

  3684.         if not audioDriver.startswith("JACK"):

  3685.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, settings[CARLA_KEY_ENGINE_BUFFER_SIZE], "")

  3686.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, settings[CARLA_KEY_ENGINE_SAMPLE_RATE], "")

  3687.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if settings[CARLA_KEY_ENGINE_TRIPLE_BUFFER] else 0, "")

  3688. 

  3689.     # -----------------------------------------------------------------------------------------------------------------

  3690.     # fix things if needed

  3691. 

  3692.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3693.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3694.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3695. 

  3696.     # -----------------------------------------------------------------------------------------------------------------

  3697.     # return selected driver name

  3698. 

  3699.     return audioDriver

  3700. 

  3701. # ---------------------------------------------------------------------------------------------------------------------

  3702. # Run Carla without showing UI

  3703. 

  3704. def runHostWithoutUI(host):

  3705.     # kdevelop likes this :)

  3706.     if False: host = CarlaHostNull()

  3707. 

  3708.     # --------------------------------------------------------------------------------------------------------

  3709.     # Some initial checks

  3710. 

  3711.     if not gCarla.nogui:

  3712.         return

  3713. 

  3714.     projectFile = getInitialProjectFile(True)

  3715. 

  3716.     if gCarla.nogui is True:

  3717.         oscPort = None

  3718. 

  3719.         if not projectFile:

  3720.             print("Carla no-gui mode can only be used together with a project file.")

  3721.             sys.exit(1)

  3722. 

  3723.     else:

  3724.         oscPort = gCarla.nogui

  3725. 

  3726.     # --------------------------------------------------------------------------------------------------------

  3727.     # Additional imports

  3728. 

  3729.     from time import sleep

  3730. 

  3731.     # --------------------------------------------------------------------------------------------------------

  3732.     # Init engine

  3733. 

  3734.     audioDriver = setEngineSettings(host, None, oscPort)

  3735.     if not host.engine_init(audioDriver, CARLA_CLIENT_NAME or "Carla"):

  3736.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3737.         sys.exit(1)

  3738. 

  3739.     if projectFile and not host.load_project(projectFile):

  3740.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3741.         host.engine_close()

  3742.         sys.exit(1)

  3743. 

  3744.     # --------------------------------------------------------------------------------------------------------

  3745.     # Idle

  3746. 

  3747.     print("Carla ready!")

  3748. 

  3749.     while host.is_engine_running() and not gCarla.term:

  3750.         host.engine_idle()

  3751.         sleep(0.0333) # 30 Hz

  3752. 

  3753.     # --------------------------------------------------------------------------------------------------------

  3754.     # Stop

  3755. 

  3756.     host.engine_close()

  3757.     sys.exit(0)

  3758. 

  3759. # ------------------------------------------------------------------------------------------------------------