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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) 2011-2021 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_qt import CarlaHostQtDLL, CarlaHostQtNull

  57. from carla_database import *

  58. from carla_settings import *

  59. from carla_utils import *

  60. from carla_widgets import *

  61. 

  62. from patchcanvas import patchcanvas

  63. from widgets.digitalpeakmeter import DigitalPeakMeter

  64. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  65. 

  66. # ------------------------------------------------------------------------------------------------------------

  67. # Try Import OpenGL

  68. 

  69. try:

  70.     from PyQt5.QtOpenGL import QGLWidget

  71.     hasGL = True

  72. except:

  73.     hasGL = False

  74. 

  75. # ------------------------------------------------------------------------------------------------------------

  76. # Safe exception hook, needed for PyQt5

  77. 

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

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

  80. 

  81. # ------------------------------------------------------------------------------------------------------------

  82. # Session Management support

  83. 

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

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

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

  87. 

  88. # ------------------------------------------------------------------------------------------------------------

  89. # Small print helper

  90. 

  91. def processMode2Str(processMode):

  92.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  93.         return "Single client"

  94.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  95.         return "Multi client"

  96.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  97.         return "Continuous Rack"

  98.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  99.         return "Patchbay"

  100.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  101.         return "Bridge"

  102.     return "Unknown"

  103. 

  104. # ------------------------------------------------------------------------------------------------------------

  105. # Carla Print class

  106. 

  107. class CarlaPrint:

  108.     def __init__(self, err):

  109.         self.err = err

  110. 

  111.     def flush(self):

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

  113. 

  114.     def write(self, string):

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

  116. 

  117. # ------------------------------------------------------------------------------------------------------------

  118. # Host Window

  119. 

  120. class HostWindow(QMainWindow):

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

  122.     # signals

  123.     SIGTERM = pyqtSignal()

  124.     SIGUSR1 = pyqtSignal()

  125. 

  126.     # CustomActions

  127.     CUSTOM_ACTION_NONE         = 0

  128.     CUSTOM_ACTION_APP_CLOSE    = 1

  129.     CUSTOM_ACTION_PROJECT_LOAD = 2

  130. 

  131.     # --------------------------------------------------------------------------------------------------------

  132. 

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

  134.         QMainWindow.__init__(self, parent)

  135.         self.host = host

  136.         self.ui = ui_carla_host.Ui_CarlaHostW()

  137.         self.ui.setupUi(self)

  138.         gCarla.gui = self

  139. 

  140.         if False:

  141.             # kdevelop likes this :)

  142.             host = CarlaHostNull()

  143.             self.host = host

  144. 

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

  146. 

  147.         self.fParentOrSelf = parent or self

  148. 

  149.         # ----------------------------------------------------------------------------------------------------

  150.         # Internal stuff

  151. 

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

  153.         self.fIdleTimerFast = 0

  154.         self.fIdleTimerSlow = 0

  155. 

  156.         self.fLadspaRdfNeedsUpdate = True

  157.         self.fLadspaRdfList = []

  158. 

  159.         self.fPluginCount = 0

  160.         self.fPluginList  = []

  161. 

  162.         self.fPluginDatabaseDialog = None

  163.         self.fFavoritePlugins = []

  164. 

  165.         self.fProjectFilename  = ""

  166.         self.fIsProjectLoading = False

  167.         self.fCurrentlyRemovingAllPlugins = False

  168. 

  169.         self.fLastTransportBPM   = 0.0

  170.         self.fLastTransportFrame = 0

  171.         self.fLastTransportState = False

  172.         self.fBufferSize         = 0

  173.         self.fSampleRate         = 0.0

  174.         self.fOscAddressTCP      = ""

  175.         self.fOscAddressUDP      = ""

  176. 

  177.         if MACOS:

  178.             self.fMacClosingHelper = True

  179. 

  180.         # CancelableActionCallback Box

  181.         self.fCancelableActionBox = None

  182. 

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

  184.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  185. 

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

  187.         self.fFirstEngineInit = True

  188. 

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

  190.         self.fSavedSettings = {}

  191. 

  192.         # true if NSM server handles our window management

  193.         self.fWindowCloseHideGui = False

  194. 

  195.         if host.isControl:

  196.             self.fClientName         = "Carla-Control"

  197.             self.fSessionManagerName = "Control"

  198.         elif host.isPlugin:

  199.             self.fClientName         = "Carla-Plugin"

  200.             self.fSessionManagerName = "Plugin"

  201.         elif LADISH_APP_NAME:

  202.             self.fClientName         = LADISH_APP_NAME

  203.             self.fSessionManagerName = "LADISH"

  204.         elif NSM_URL and host.nsmOK:

  205.             self.fClientName         = "Carla.tmp"

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

  207.             self.fWindowCloseHideGui = True

  208.         else:

  209.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  210.             self.fSessionManagerName = ""

  211. 

  212.         # ----------------------------------------------------------------------------------------------------

  213.         # Internal stuff (patchbay)

  214. 

  215.         self.fPeaksCleared = True

  216. 

  217.         self.fExternalPatchbay = False

  218.         self.fSelectedPlugins  = []

  219. 

  220.         self.fCanvasWidth  = 0

  221.         self.fCanvasHeight = 0

  222.         self.fMiniCanvasUpdateTimeout = 0

  223. 

  224.         self.fWithCanvas = withCanvas

  225. 

  226.         # ----------------------------------------------------------------------------------------------------

  227.         # Internal stuff (logs)

  228. 

  229.         self.autoscrollOnNewLog = True

  230.         self.lastLogSliderPos = 0

  231. 

  232.         # ----------------------------------------------------------------------------------------------------

  233.         # Set up GUI (engine stopped)

  234. 

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

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

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

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

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

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

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

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

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

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

  245. 

  246.             if self.host.isControl:

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

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

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

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

  251.             else:

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

  253. 

  254.                 if not withCanvas:

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

  256. 

  257.         else:

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

  259. 

  260.             if WINDOWS:

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

  262. 

  263.         if self.host.isControl:

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

  265.         else:

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

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

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

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

  270. 

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

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

  273. 

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

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

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

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

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

  279. 

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

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

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

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

  284. 

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

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

  287. 

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

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

  290. 

  291.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  309.             self.ui.tw_miniCanvas.hide()

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

  311.             if WINDOWS:

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

  313. 

  314.         # ----------------------------------------------------------------------------------------------------

  315.         # Set up GUI (disk)

  316. 

  317.         exts = gCarla.utils.get_supported_file_extensions()

  318. 

  319.         self.fDirModel = QFileSystemModel(self)

  320.         self.fDirModel.setRootPath(HOME)

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

  322. 

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

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

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

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

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

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

  329. 

  330.         # ----------------------------------------------------------------------------------------------------

  331.         # Set up GUI (transport)

  332. 

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

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

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

  336. 

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

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

  339. 

  340.         if minLabelWidth < labelTimeWidth:

  341.             minLabelWidth = labelTimeWidth

  342.         if minLabelWidth < labelBBTWidth:

  343.             minLabelWidth = labelBBTWidth

  344. 

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

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

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

  348. 

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

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

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

  352. 

  353.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  366. 

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

  368. 

  369.         # ----------------------------------------------------------------------------------------------------

  370.         # Set up GUI (rack)

  371. 

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

  373. 

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

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

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

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

  378. 

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

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

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

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

  383. 

  384.         self.updateStyle()

  385. 

  386.         self.ui.rack.setStyleSheet("""

  387.           CarlaRackList#CarlaRackList {

  388.             background-color: black;

  389.           }

  390.         """)

  391. 

  392.         # ----------------------------------------------------------------------------------------------------

  393.         # Set up GUI (patchbay)

  394. 

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

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

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

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

  399. 

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

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

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

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

  404. 

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

  406.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  408. 

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

  410. 

  411.         self.ui.miniCanvasPreview.setRealParent(self)

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

  413. 

  414.         # ----------------------------------------------------------------------------------------------------

  415.         # Set up GUI (logs)

  416. 

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

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

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

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

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

  422. 

  423.         # ----------------------------------------------------------------------------------------------------

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

  425. 

  426.         if MACOS:

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

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

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

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

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

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

  433. 

  434.         # ----------------------------------------------------------------------------------------------------

  435.         # Load Settings

  436. 

  437.         self.loadSettings(True)

  438. 

  439.         # ----------------------------------------------------------------------------------------------------

  440.         # Set-up Canvas

  441. 

  442.         if withCanvas:

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

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

  445. 

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

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

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

  449. 

  450.             self.setupCanvas()

  451. 

  452.         # ----------------------------------------------------------------------------------------------------

  453.         # Set-up Icons

  454. 

  455.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  485. 

  486.         # ----------------------------------------------------------------------------------------------------

  487.         # Connect actions to functions

  488. 

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

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

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

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

  493. 

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

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

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

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

  498. 

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

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

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

  502. 

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

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

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

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

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

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

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

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

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

  512. 

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

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

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

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

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

  518. 

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

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

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

  522. 

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

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

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

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

  527. 

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

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

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

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

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

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

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

  535. 

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

  537. 

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

  539. 

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

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

  542. 

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

  544. 

  545.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  565. 

  566.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  567.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  568. 

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

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

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

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

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

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

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

  576. 

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

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

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

  580. 

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

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

  583. 

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

  585. 

  586.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

  600. 

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

  602. 

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

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

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

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

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

  608. 

  609.         # ----------------------------------------------------------------------------------------------------

  610.         # Final setup

  611. 

  612.         self.ui.text_logs.clear()

  613.         self.slot_logButtonsState(False)

  614.         self.setProperWindowTitle()

  615. 

  616.         # Disable non-supported features

  617.         features = gCarla.utils.get_supported_features()

  618. 

  619.         if "link" not in features:

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

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

  622. 

  623.         if "juce" not in features:

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

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

  626. 

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

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

  629.             self.startTimers()

  630. 

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

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

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

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

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

  636. 

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

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

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

  640. 

  641.         # Load initial project file if set

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

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

  644. 

  645.             if projectFile:

  646.                 self.loadProjectLater(projectFile)

  647. 

  648.         # For NSM we wait for the open message

  649.         if NSM_URL and host.nsmOK:

  650.             host.nsm_ready(NSM_CALLBACK_INIT)

  651.             return

  652. 

  653.         if not host.isControl:

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

  655. 

  656.     # --------------------------------------------------------------------------------------------------------

  657.     # Manage visibility state, needed for NSM

  658. 

  659.     def hideForNSM(self):

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

  661.             if pitem is None:

  662.                 continue

  663.             pitem.getWidget().hideCustomUI()

  664.         self.hide()

  665. 

  666.     def showIfNeeded(self):

  667.         if self.host.nsmOK:

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

  669.             QApplication.instance().setQuitOnLastWindowClosed(False)

  670.         else:

  671.             self.show()

  672. 

  673.     # --------------------------------------------------------------------------------------------------------

  674.     # Setup

  675. 

  676.     def compactPlugin(self, pluginId):

  677.         if pluginId > self.fPluginCount:

  678.             return

  679. 

  680.         pitem = self.fPluginList[pluginId]

  681. 

  682.         if pitem is None:

  683.             return

  684. 

  685.         pitem.recreateWidget(True)

  686. 

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

  688.         if pluginId > self.fPluginCount:

  689.             return

  690. 

  691.         pitem = self.fPluginList[pluginId]

  692. 

  693.         if pitem is None:

  694.             return

  695. 

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

  697.         pitem.recreateWidget(newColor = color)

  698. 

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

  700.         if pluginId > self.fPluginCount:

  701.             return

  702. 

  703.         pitem = self.fPluginList[pluginId]

  704. 

  705.         if pitem is None:

  706.             return

  707. 

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

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

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

  711.         else:

  712.             pitem.recreateWidget(newSkin = skin)

  713. 

  714.     def findPluginInPatchbay(self, pluginId):

  715.         if pluginId > self.fPluginCount:

  716.             return

  717. 

  718.         if self.fExternalPatchbay:

  719.             self.slot_canvasShowInternal()

  720. 

  721.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  723.             if not patchcanvas.focusGroupUsingGroupName(name):

  724.                 return

  725. 

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

  727. 

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

  729.         if pluginIdA == pluginIdB:

  730.             return

  731.         if pluginIdA < 0 or pluginIdB < 0:

  732.             return

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

  734.             return

  735. 

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

  737. 

  738.         itemA = self.fPluginList[pluginIdA]

  739.         compactA = itemA.isCompacted()

  740.         guiShownA = itemA.isGuiShown()

  741. 

  742.         itemB = self.fPluginList[pluginIdB]

  743.         compactB = itemB.isCompacted()

  744.         guiShownB = itemB.isGuiShown()

  745. 

  746.         itemA.setPluginId(pluginIdA)

  747.         itemA.recreateWidget2(compactB, guiShownB)

  748. 

  749.         itemB.setPluginId(pluginIdB)

  750.         itemB.recreateWidget2(compactA, guiShownA)

  751. 

  752.         if self.fWithCanvas:

  753.             self.slot_canvasRefresh()

  754. 

  755.     def setLoadRDFsNeeded(self):

  756.         self.fLadspaRdfNeedsUpdate = True

  757. 

  758.     def setProperWindowTitle(self):

  759.         title = self.fClientName

  760. 

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

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

  763.         if self.fSessionManagerName:

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

  765. 

  766.         self.setWindowTitle(title)

  767. 

  768.     def updateBufferSize(self, newBufferSize):

  769.         if self.fBufferSize == newBufferSize:

  770.             return

  771.         self.fBufferSize = newBufferSize

  772.         self.ui.cb_buffer_size.clear()

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

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

  775. 

  776.     def updateSampleRate(self, newSampleRate):

  777.         if self.fSampleRate == newSampleRate:

  778.             return

  779.         self.fSampleRate = newSampleRate

  780.         self.ui.cb_sample_rate.clear()

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

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

  783.         self.refreshTransport(True)

  784. 

  785.     # --------------------------------------------------------------------------------------------------------

  786.     # Files

  787. 

  788.     def loadProjectNow(self):

  789.         if not self.fProjectFilename:

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

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

  792.             return

  793. 

  794.         self.projectLoadingStarted()

  795.         self.fIsProjectLoading = True

  796. 

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

  798.             self.fIsProjectLoading = False

  799.             self.projectLoadingFinished()

  800. 

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

  802.                              self.host.get_last_error(),

  803.                              QMessageBox.Ok, QMessageBox.Ok)

  804. 

  805.     def loadProjectLater(self, filename):

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

  807.         self.setProperWindowTitle()

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

  809. 

  810.     def saveProjectNow(self):

  811.         if not self.fProjectFilename:

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

  813. 

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

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

  816.                              self.host.get_last_error(),

  817.                              QMessageBox.Ok, QMessageBox.Ok)

  818.             return

  819. 

  820.     def projectLoadingStarted(self):

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

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

  823. 

  824.     def projectLoadingFinished(self):

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

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

  827. 

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

  829.             return

  830. 

  831.         if not self.loadExternalCanvasGroupPositionsIfNeeded(self.fProjectFilename):

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

  833. 

  834.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

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

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

  837.             return False

  838. 

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

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

  841.                 return False

  842. 

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

  844.             try:

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

  846.             except:

  847.                 return False

  848. 

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

  850.         patchcanvas.restoreGroupPositions(canvasdata)

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

  852.         return True

  853. 

  854.     # --------------------------------------------------------------------------------------------------------

  855.     # Files (menu actions)

  856. 

  857.     @pyqtSlot()

  858.     def slot_fileNew(self):

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

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

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

  862.             return

  863. 

  864.         self.pluginRemoveAll()

  865.         self.fProjectFilename = ""

  866.         self.setProperWindowTitle()

  867.         self.host.clear_project_filename()

  868. 

  869.     @pyqtSlot()

  870.     def slot_fileOpen(self):

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

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

  873. 

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

  875.         if not filename:

  876.             return

  877. 

  878.         newFile = True

  879. 

  880.         if self.fPluginCount > 0:

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

  882.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  884. 

  885.         if newFile:

  886.             self.pluginRemoveAll()

  887.             self.fProjectFilename = filename

  888.             self.setProperWindowTitle()

  889.             self.loadProjectNow()

  890.         else:

  891.             filenameOld = self.fProjectFilename

  892.             self.fProjectFilename = filename

  893.             self.loadProjectNow()

  894.             self.fProjectFilename = filenameOld

  895. 

  896.     @pyqtSlot()

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

  898.         if self.fProjectFilename and not saveAs:

  899.             return self.saveProjectNow()

  900. 

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

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

  903. 

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

  905.         if not filename:

  906.             return

  907. 

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

  909.             filename += ".carxp"

  910. 

  911.         if self.fProjectFilename != filename:

  912.             self.fProjectFilename = filename

  913.             self.setProperWindowTitle()

  914. 

  915.         self.saveProjectNow()

  916. 

  917.     @pyqtSlot()

  918.     def slot_fileSaveAs(self):

  919.         self.slot_fileSave(True)

  920. 

  921.     @pyqtSlot()

  922.     def slot_loadProjectNow(self):

  923.         self.loadProjectNow()

  924. 

  925.     # --------------------------------------------------------------------------------------------------------

  926.     # Engine (menu actions)

  927. 

  928.     @pyqtSlot()

  929.     def slot_engineStart(self):

  930.         audioDriver = setEngineSettings(self.host)

  931.         firstInit   = self.fFirstEngineInit

  932. 

  933.         self.fFirstEngineInit = False

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

  935. 

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

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

  938.                 settings = QSafeSettings()

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

  940.                 del settings

  941.                 if lastBpm >= 20.0:

  942.                     self.host.transport_bpm(lastBpm)

  943.             return

  944. 

  945.         elif firstInit:

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

  947.             return

  948. 

  949.         audioError = self.host.get_last_error()

  950. 

  951.         if audioError:

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

  953.         else:

  954.             QMessageBox.critical(self, self.tr("Error"), self.tr("Could not connect to Audio backend '%s'" % audioDriver))

  955. 

  956.     @pyqtSlot()

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

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

  959. 

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

  961.             self.engineStopFinal()

  962.             return True

  963. 

  964.         if not forced:

  965.             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"

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

  967.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  968.             if ask != QMessageBox.Yes:

  969.                 return False

  970. 

  971.         return self.slot_engineStopTryAgain()

  972. 

  973.     @pyqtSlot()

  974.     def slot_engineConfig(self):

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

  976. 

  977.         if not dialog.exec_():

  978.             return

  979. 

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

  981. 

  982.         if self.host.is_engine_running():

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

  984.         else:

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

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

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

  988. 

  989.     @pyqtSlot()

  990.     def slot_engineStopTryAgain(self):

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

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

  993.             return False

  994. 

  995.         self.engineStopFinal()

  996.         return True

  997. 

  998.     def engineStopFinal(self):

  999.         patchcanvas.handleAllPluginsRemoved()

  1000.         self.killTimers()

  1001. 

  1002.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1003.             self.removeAllPlugins()

  1004.         else:

  1005.             self.fProjectFilename = ""

  1006.             self.setProperWindowTitle()

  1007.             if self.fPluginCount != 0:

  1008.                 self.fCurrentlyRemovingAllPlugins = True

  1009.                 self.projectLoadingStarted()

  1010. 

  1011.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1012.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1013.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1014. 

  1015.         if not self.host.engine_close():

  1016.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1017.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1018. 

  1019.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1020.             self.close()

  1021.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1022.             self.slot_engineStart()

  1023.             self.loadProjectNow()

  1024.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1025. 

  1026.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1027. 

  1028.     # --------------------------------------------------------------------------------------------------------

  1029.     # Engine (host callbacks)

  1030. 

  1031.     @pyqtSlot(int, int, int, int, float, str)

  1032.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

  1033.         self.ui.menu_PluginMacros.setEnabled(True)

  1034.         self.ui.menu_Canvas.setEnabled(True)

  1035.         self.ui.w_transport.setEnabled(True)

  1036. 

  1037.         self.ui.act_canvas_show_internal.blockSignals(True)

  1038.         self.ui.act_canvas_show_external.blockSignals(True)

  1039. 

  1040.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1041.             self.ui.act_canvas_show_internal.setChecked(True)

  1042.             self.ui.act_canvas_show_internal.setVisible(True)

  1043.             self.ui.act_canvas_show_external.setChecked(False)

  1044.             self.ui.act_canvas_show_external.setVisible(True)

  1045.             self.fExternalPatchbay = False

  1046.         else:

  1047.             self.ui.act_canvas_show_internal.setChecked(False)

  1048.             self.ui.act_canvas_show_internal.setVisible(False)

  1049.             self.ui.act_canvas_show_external.setChecked(True)

  1050.             self.ui.act_canvas_show_external.setVisible(False)

  1051.             self.fExternalPatchbay = not self.host.isPlugin

  1052. 

  1053.         self.ui.act_canvas_show_internal.blockSignals(False)

  1054.         self.ui.act_canvas_show_external.blockSignals(False)

  1055. 

  1056.         if not (self.host.isControl or self.host.isPlugin):

  1057.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1058.             self.ui.act_file_save.setEnabled(canSave)

  1059.             self.ui.act_engine_start.setEnabled(False)

  1060.             self.ui.act_engine_stop.setEnabled(True)

  1061. 

  1062.         if not self.host.isPlugin:

  1063.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1064. 

  1065.         if self.host.isPlugin or not self.fSessionManagerName:

  1066.             self.ui.act_file_open.setEnabled(True)

  1067.             self.ui.act_file_save_as.setEnabled(True)

  1068. 

  1069.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1070.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1071. 

  1072.         if self.ui.cb_transport_link.isEnabled():

  1073.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1074. 

  1075.         self.updateBufferSize(bufferSize)

  1076.         self.updateSampleRate(int(sampleRate))

  1077.         self.refreshRuntimeInfo(0.0, 0)

  1078.         self.startTimers()

  1079. 

  1080.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1081.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1082.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1083.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1084.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1085. 

  1086.     @pyqtSlot()

  1087.     def slot_handleEngineStoppedCallback(self):

  1088.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1089. 

  1090.         if self.fWithCanvas:

  1091.             patchcanvas.clear()

  1092. 

  1093.         self.killTimers()

  1094. 

  1095.         # just in case

  1096.         self.removeAllPlugins()

  1097.         self.refreshRuntimeInfo(0.0, 0)

  1098. 

  1099.         self.ui.menu_PluginMacros.setEnabled(False)

  1100.         self.ui.menu_Canvas.setEnabled(False)

  1101.         self.ui.w_transport.setEnabled(False)

  1102. 

  1103.         if not (self.host.isControl or self.host.isPlugin):

  1104.             self.ui.act_file_save.setEnabled(False)

  1105.             self.ui.act_engine_start.setEnabled(True)

  1106.             self.ui.act_engine_stop.setEnabled(False)

  1107. 

  1108.         if self.host.isPlugin or not self.fSessionManagerName:

  1109.             self.ui.act_file_open.setEnabled(False)

  1110.             self.ui.act_file_save_as.setEnabled(False)

  1111. 

  1112.     @pyqtSlot(int, str)

  1113.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1114.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1115. 

  1116.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1117.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1118. 

  1119.     @pyqtSlot(int)

  1120.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1121.         self.updateBufferSize(newBufferSize)

  1122. 

  1123.     @pyqtSlot(float)

  1124.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1125.         self.updateSampleRate(int(newSampleRate))

  1126. 

  1127.     @pyqtSlot(int, bool, str)

  1128.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1129.         if self.fCancelableActionBox is not None:

  1130.             self.fCancelableActionBox.close()

  1131. 

  1132.         if started:

  1133.             self.fCancelableActionBox = QMessageBox(self)

  1134.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1135.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1136.             self.fCancelableActionBox.setText(action)

  1137.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1138.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1139.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1140.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1141.             self.fCancelableActionBox.show()

  1142. 

  1143.         else:

  1144.             self.fCancelableActionBox = None

  1145. 

  1146.     @pyqtSlot()

  1147.     def slot_canlableActionBoxClicked(self):

  1148.         self.host.cancel_engine_action()

  1149. 

  1150.     @pyqtSlot()

  1151.     def slot_handleProjectLoadFinishedCallback(self):

  1152.         self.fIsProjectLoading = False

  1153.         self.projectLoadingFinished()

  1154. 

  1155.     # --------------------------------------------------------------------------------------------------------

  1156.     # Plugins

  1157. 

  1158.     def removeAllPlugins(self):

  1159.         self.ui.act_plugin_remove_all.setEnabled(False)

  1160.         patchcanvas.handleAllPluginsRemoved()

  1161. 

  1162.         while self.ui.listWidget.takeItem(0):

  1163.             pass

  1164. 

  1165.         self.clearSideStuff()

  1166. 

  1167.         for pitem in self.fPluginList:

  1168.             if pitem is None:

  1169.                 continue

  1170. 

  1171.             pitem.close()

  1172.             del pitem

  1173. 

  1174.         self.fPluginCount = 0

  1175.         self.fPluginList  = []

  1176. 

  1177.     # --------------------------------------------------------------------------------------------------------

  1178.     # Plugins (menu actions)

  1179. 

  1180.     def showAddPluginDialog(self):

  1181.         if self.fPluginDatabaseDialog is None:

  1182.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host,

  1183.                                                          self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1184.         dialog = self.fPluginDatabaseDialog

  1185. 

  1186.         ret = dialog.exec_()

  1187. 

  1188.         if dialog.fFavoritePluginsChanged:

  1189.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1190. 

  1191.         if not ret:

  1192.             return

  1193. 

  1194.         if not self.host.is_engine_running():

  1195.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1196.             return

  1197. 

  1198.         btype    = dialog.fRetPlugin['build']

  1199.         ptype    = dialog.fRetPlugin['type']

  1200.         filename = dialog.fRetPlugin['filename']

  1201.         label    = dialog.fRetPlugin['label']

  1202.         uniqueId = dialog.fRetPlugin['uniqueId']

  1203.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1204. 

  1205.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1206. 

  1207.     def showAddJackAppDialog(self):

  1208.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1209. 

  1210.         if not dialog.exec_():

  1211.             return

  1212. 

  1213.         if not self.host.is_engine_running():

  1214.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1215.             return

  1216. 

  1217.         return dialog.getCommandAndFlags()

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_favoritePluginAdd(self):

  1221.         plugin = self.sender().data()

  1222. 

  1223.         if plugin is None:

  1224.             return

  1225. 

  1226.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1227.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1228.             CustomMessageBox(self,

  1229.                              QMessageBox.Critical,

  1230.                              self.tr("Error"),

  1231.                              self.tr("Failed to load plugin"),

  1232.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1233. 

  1234.     @pyqtSlot()

  1235.     def slot_showPluginActionsMenu(self):

  1236.         menu = QMenu(self)

  1237. 

  1238.         menu.addSection("Plugins")

  1239.         menu.addAction(self.ui.act_plugin_add)

  1240. 

  1241.         if len(self.fFavoritePlugins) != 0:

  1242.             fmenu = QMenu("Add from favorites", self)

  1243.             for p in self.fFavoritePlugins:

  1244.                 act = fmenu.addAction(p['name'])

  1245.                 act.setData(p)

  1246.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1247.             menu.addMenu(fmenu)

  1248. 

  1249.         menu.addAction(self.ui.act_plugin_remove_all)

  1250. 

  1251.         menu.addSection("All plugins (macros)")

  1252.         menu.addAction(self.ui.act_plugins_enable)

  1253.         menu.addAction(self.ui.act_plugins_disable)

  1254.         menu.addSeparator()

  1255.         menu.addAction(self.ui.act_plugins_volume100)

  1256.         menu.addAction(self.ui.act_plugins_mute)

  1257.         menu.addSeparator()

  1258.         menu.addAction(self.ui.act_plugins_wet100)

  1259.         menu.addAction(self.ui.act_plugins_bypass)

  1260.         menu.addSeparator()

  1261.         menu.addAction(self.ui.act_plugins_center)

  1262.         menu.addSeparator()

  1263.         menu.addAction(self.ui.act_plugins_compact)

  1264.         menu.addAction(self.ui.act_plugins_expand)

  1265. 

  1266.         menu.exec_(QCursor.pos())

  1267. 

  1268.     @pyqtSlot()

  1269.     def slot_pluginAdd(self):

  1270.         data = self.showAddPluginDialog()

  1271. 

  1272.         if data is None:

  1273.             return

  1274. 

  1275.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1276. 

  1277.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1278.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1279.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1280. 

  1281.     @pyqtSlot()

  1282.     def slot_confirmRemoveAll(self):

  1283.         if self.fPluginCount == 0:

  1284.             return

  1285. 

  1286.         if QMessageBox.question(self, self.tr("Remove All"),

  1287.                                       self.tr("Are you sure you want to remove all plugins?"),

  1288.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1289.             return

  1290. 

  1291.         self.pluginRemoveAll()

  1292. 

  1293.     def pluginRemoveAll(self):

  1294.         if self.fPluginCount == 0:

  1295.             return

  1296. 

  1297.         self.fCurrentlyRemovingAllPlugins = True

  1298.         self.projectLoadingStarted()

  1299. 

  1300.         if not self.host.remove_all_plugins():

  1301.             self.projectLoadingFinished()

  1302.             self.fCurrentlyRemovingAllPlugins = False

  1303.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1304.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1305. 

  1306.     @pyqtSlot()

  1307.     def slot_jackAppAdd(self):

  1308.         data = self.showAddJackAppDialog()

  1309. 

  1310.         if data is None:

  1311.             return

  1312. 

  1313.         filename, name, label = data

  1314. 

  1315.         if not filename:

  1316.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1317.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1318.             return

  1319. 

  1320.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1321.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1322.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1323. 

  1324.     # --------------------------------------------------------------------------------------------------------

  1325.     # Plugins (macros)

  1326. 

  1327.     @pyqtSlot()

  1328.     def slot_pluginsEnable(self):

  1329.         if not self.host.is_engine_running():

  1330.             return

  1331. 

  1332.         for pitem in self.fPluginList:

  1333.             if pitem is None:

  1334.                 break

  1335. 

  1336.             pitem.getWidget().setActive(True, True, True)

  1337. 

  1338.     @pyqtSlot()

  1339.     def slot_pluginsDisable(self):

  1340.         if not self.host.is_engine_running():

  1341.             return

  1342. 

  1343.         for pitem in self.fPluginList:

  1344.             if pitem is None:

  1345.                 break

  1346. 

  1347.             pitem.getWidget().setActive(False, True, True)

  1348. 

  1349.     @pyqtSlot()

  1350.     def slot_pluginsVolume100(self):

  1351.         if not self.host.is_engine_running():

  1352.             return

  1353. 

  1354.         for pitem in self.fPluginList:

  1355.             if pitem is None:

  1356.                 break

  1357. 

  1358.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1359. 

  1360.     @pyqtSlot()

  1361.     def slot_pluginsMute(self):

  1362.         if not self.host.is_engine_running():

  1363.             return

  1364. 

  1365.         for pitem in self.fPluginList:

  1366.             if pitem is None:

  1367.                 break

  1368. 

  1369.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1370. 

  1371.     @pyqtSlot()

  1372.     def slot_pluginsWet100(self):

  1373.         if not self.host.is_engine_running():

  1374.             return

  1375. 

  1376.         for pitem in self.fPluginList:

  1377.             if pitem is None:

  1378.                 break

  1379. 

  1380.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1381. 

  1382.     @pyqtSlot()

  1383.     def slot_pluginsBypass(self):

  1384.         if not self.host.is_engine_running():

  1385.             return

  1386. 

  1387.         for pitem in self.fPluginList:

  1388.             if pitem is None:

  1389.                 break

  1390. 

  1391.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1392. 

  1393.     @pyqtSlot()

  1394.     def slot_pluginsCenter(self):

  1395.         if not self.host.is_engine_running():

  1396.             return

  1397. 

  1398.         for pitem in self.fPluginList:

  1399.             if pitem is None:

  1400.                 break

  1401. 

  1402.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1403.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1404.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1405. 

  1406.     @pyqtSlot()

  1407.     def slot_pluginsCompact(self):

  1408.         for pitem in self.fPluginList:

  1409.             if pitem is None:

  1410.                 break

  1411.             pitem.compact()

  1412. 

  1413.     @pyqtSlot()

  1414.     def slot_pluginsExpand(self):

  1415.         for pitem in self.fPluginList:

  1416.             if pitem is None:

  1417.                 break

  1418.             pitem.expand()

  1419. 

  1420.     # --------------------------------------------------------------------------------------------------------

  1421.     # Plugins (host callbacks)

  1422. 

  1423.     @pyqtSlot(int, str)

  1424.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1425.         if pluginId != self.fPluginCount:

  1426.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1427.             pitem = self.getPluginItem(pluginId)

  1428.             pitem.recreateWidget()

  1429.             return

  1430. 

  1431.         pitem = self.ui.listWidget.createItem(pluginId)

  1432.         self.fPluginList.append(pitem)

  1433.         self.fPluginCount += 1

  1434. 

  1435.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1436. 

  1437.     @pyqtSlot(int)

  1438.     def slot_handlePluginRemovedCallback(self, pluginId):

  1439.         if self.fWithCanvas:

  1440.             patchcanvas.handlePluginRemoved(pluginId)

  1441. 

  1442.         if pluginId in self.fSelectedPlugins:

  1443.             self.clearSideStuff()

  1444. 

  1445.         if self.fPluginCount == 0:

  1446.             return

  1447. 

  1448.         pitem = self.getPluginItem(pluginId)

  1449. 

  1450.         self.fPluginCount -= 1

  1451.         self.fPluginList.pop(pluginId)

  1452.         self.ui.listWidget.takeItem(pluginId)

  1453. 

  1454.         if pitem is not None:

  1455.             pitem.close()

  1456.             del pitem

  1457. 

  1458.         if self.fPluginCount == 0:

  1459.             self.ui.act_plugin_remove_all.setEnabled(False)

  1460.             if self.fCurrentlyRemovingAllPlugins:

  1461.                 self.fCurrentlyRemovingAllPlugins = False

  1462.                 self.projectLoadingFinished()

  1463.             return

  1464. 

  1465.         # push all plugins 1 slot back

  1466.         for i in range(pluginId, self.fPluginCount):

  1467.             pitem = self.fPluginList[i]

  1468.             pitem.setPluginId(i)

  1469. 

  1470.         self.ui.act_plugin_remove_all.setEnabled(True)

  1471. 

  1472.     # --------------------------------------------------------------------------------------------------------

  1473.     # Canvas

  1474. 

  1475.     def clearSideStuff(self):

  1476.         if self.fWithCanvas:

  1477.             self.scene.clearSelection()

  1478. 

  1479.         self.fSelectedPlugins = []

  1480. 

  1481.         self.ui.keyboard.allNotesOff(False)

  1482.         self.ui.scrollArea.setEnabled(False)

  1483. 

  1484.         self.fPeaksCleared = True

  1485.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1486.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1487.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1488.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1489. 

  1490.     def setupCanvas(self):

  1491.         pOptions = patchcanvas.options_t()

  1492.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1493.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1494.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1495.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1496.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1497.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1498. 

  1499.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1500.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1501.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1502.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1503.         else:

  1504.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1505. 

  1506.         pFeatures = patchcanvas.features_t()

  1507.         pFeatures.group_info   = False

  1508.         pFeatures.group_rename = False

  1509.         pFeatures.port_info    = False

  1510.         pFeatures.port_rename  = False

  1511.         pFeatures.handle_group_pos = False

  1512. 

  1513.         patchcanvas.setOptions(pOptions)

  1514.         patchcanvas.setFeatures(pFeatures)

  1515.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1516. 

  1517.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1518. 

  1519.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1520.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1521.             self.fCanvasHeight = int(tryCanvasSize[1])

  1522.         else:

  1523.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1524.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1525. 

  1526.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1527.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1528.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1529. 

  1530.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1531.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1532. 

  1533.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1534.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1535. 

  1536.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1537.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1538.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1539. 

  1540.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1541.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1542. 

  1543.         else:

  1544.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1545. 

  1546.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1547.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1548.         else:

  1549.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1550. 

  1551.     def updateCanvasInitialPos(self):

  1552.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1553.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1554.         patchcanvas.setInitialPos(x, y)

  1555. 

  1556.     def updateMiniCanvasLater(self):

  1557.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1558. 

  1559.     # --------------------------------------------------------------------------------------------------------

  1560.     # Canvas (menu actions)

  1561. 

  1562.     @pyqtSlot()

  1563.     def slot_canvasShowInternal(self):

  1564.         self.fExternalPatchbay = False

  1565.         self.ui.act_canvas_show_internal.blockSignals(True)

  1566.         self.ui.act_canvas_show_external.blockSignals(True)

  1567.         self.ui.act_canvas_show_internal.setChecked(True)

  1568.         self.ui.act_canvas_show_external.setChecked(False)

  1569.         self.ui.act_canvas_show_internal.blockSignals(False)

  1570.         self.ui.act_canvas_show_external.blockSignals(False)

  1571.         self.slot_canvasRefresh()

  1572. 

  1573.     @pyqtSlot()

  1574.     def slot_canvasShowExternal(self):

  1575.         self.fExternalPatchbay = True

  1576.         self.ui.act_canvas_show_internal.blockSignals(True)

  1577.         self.ui.act_canvas_show_external.blockSignals(True)

  1578.         self.ui.act_canvas_show_internal.setChecked(False)

  1579.         self.ui.act_canvas_show_external.setChecked(True)

  1580.         self.ui.act_canvas_show_internal.blockSignals(False)

  1581.         self.ui.act_canvas_show_external.blockSignals(False)

  1582.         self.slot_canvasRefresh()

  1583. 

  1584.     @pyqtSlot()

  1585.     def slot_canvasArrange(self):

  1586.         patchcanvas.arrange()

  1587. 

  1588.     @pyqtSlot()

  1589.     def slot_canvasRefresh(self):

  1590.         patchcanvas.clear()

  1591. 

  1592.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1593.             return

  1594. 

  1595.         if self.host.is_engine_running():

  1596.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1597. 

  1598.         self.updateMiniCanvasLater()

  1599. 

  1600.     @pyqtSlot()

  1601.     def slot_canvasZoomFit(self):

  1602.         self.scene.zoom_fit()

  1603. 

  1604.     @pyqtSlot()

  1605.     def slot_canvasZoomIn(self):

  1606.         self.scene.zoom_in()

  1607. 

  1608.     @pyqtSlot()

  1609.     def slot_canvasZoomOut(self):

  1610.         self.scene.zoom_out()

  1611. 

  1612.     @pyqtSlot()

  1613.     def slot_canvasZoomReset(self):

  1614.         self.scene.zoom_reset()

  1615. 

  1616.     def _canvasImageRender(self, zoom = 1.0):

  1617.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1618.         painter = QPainter(image)

  1619.         painter.save()

  1620.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1621.         self.scene.clearSelection()

  1622.         self.scene.render(painter)

  1623.         painter.restore()

  1624.         del painter

  1625.         return image

  1626. 

  1627.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1628.         iw.setFormat(imgFormat)

  1629.         iw.setCompression(-1)

  1630.         if QT_VERSION >= 0x50500:

  1631.             iw.setOptimizedWrite(True)

  1632.         iw.write(image)

  1633. 

  1634.     @pyqtSlot()

  1635.     def slot_canvasSaveImage(self):

  1636.         if self.fProjectFilename:

  1637.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1638.         else:

  1639.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1640. 

  1641.         fileDialog = QFileDialog(self)

  1642.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1643.         fileDialog.setDirectory(dir)

  1644.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1645.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1646.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1647.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1648.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1649. 

  1650.         ok = fileDialog.exec_()

  1651. 

  1652.         if not ok:

  1653.             return

  1654. 

  1655.         newPath = fileDialog.selectedFiles()

  1656. 

  1657.         if len(newPath) != 1:

  1658.             return

  1659. 

  1660.         newPath = newPath[0]

  1661. 

  1662.         if QT_VERSION >= 0x50900:

  1663.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1664.                 imgFormat = b"JPG"

  1665.             else:

  1666.                 imgFormat = b"PNG"

  1667.         else:

  1668.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1669.                 imgFormat = b"JPG"

  1670.             else:

  1671.                 imgFormat = b"PNG"

  1672. 

  1673.         sender = self.sender()

  1674.         if sender == self.ui.act_canvas_save_image_2x:

  1675.             zoom = 2.0

  1676.         elif sender == self.ui.act_canvas_save_image_4x:

  1677.             zoom = 4.0

  1678.         else:

  1679.             zoom = 1.0

  1680. 

  1681.         image = self._canvasImageRender(zoom)

  1682.         iw = QImageWriter(newPath)

  1683.         self._canvasImageWrite(iw, imgFormat, image)

  1684. 

  1685.     @pyqtSlot()

  1686.     def slot_canvasCopyToClipboard(self):

  1687.         buffer = QBuffer()

  1688.         buffer.open(QIODevice.WriteOnly)

  1689. 

  1690.         image = self._canvasImageRender()

  1691.         iw = QImageWriter(buffer, b"PNG")

  1692.         self._canvasImageWrite(iw, b"PNG", image)

  1693. 

  1694.         buffer.close()

  1695. 

  1696.         mimeData = QMimeData()

  1697.         mimeData.setData("image/png", buffer.buffer());

  1698. 

  1699.         QApplication.clipboard().setMimeData(mimeData)

  1700. 

  1701.     # --------------------------------------------------------------------------------------------------------

  1702.     # Canvas (canvas callbacks)

  1703. 

  1704.     @pyqtSlot()

  1705.     def slot_canvasSelectionChanged(self):

  1706.         self.updateMiniCanvasLater()

  1707. 

  1708.     @pyqtSlot(float)

  1709.     def slot_canvasScaleChanged(self, scale):

  1710.         self.ui.miniCanvasPreview.setViewScale(scale)

  1711. 

  1712.     @pyqtSlot(list)

  1713.     def slot_canvasPluginSelected(self, pluginList):

  1714.         self.ui.keyboard.allNotesOff(False)

  1715.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1716.         self.fSelectedPlugins = pluginList

  1717. 

  1718.     # --------------------------------------------------------------------------------------------------------

  1719.     # Canvas (host callbacks)

  1720. 

  1721.     @pyqtSlot(int, int, int, str)

  1722.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1723.         pcSplit = patchcanvas.SPLIT_UNDEF

  1724.         pcIcon  = patchcanvas.ICON_APPLICATION

  1725. 

  1726.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1727.             pcIcon = patchcanvas.ICON_PLUGIN

  1728.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1729.             pcIcon = patchcanvas.ICON_HARDWARE

  1730.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1731.             pass

  1732.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1733.             pcIcon = patchcanvas.ICON_DISTRHO

  1734.         elif clientIcon == PATCHBAY_ICON_FILE:

  1735.             pcIcon = patchcanvas.ICON_FILE

  1736. 

  1737.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1738. 

  1739.         self.updateMiniCanvasLater()

  1740. 

  1741.         if pluginId < 0:

  1742.             return

  1743.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1744.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1745.             return

  1746. 

  1747.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1748.             hasCustomUI = False

  1749.             hasInlineDisplay = False

  1750.         else:

  1751.             hints = self.host.get_plugin_info(pluginId)['hints']

  1752.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1753.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1754. 

  1755.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1756. 

  1757.     @pyqtSlot(int)

  1758.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1759.         patchcanvas.removeGroup(clientId)

  1760.         self.updateMiniCanvasLater()

  1761. 

  1762.     @pyqtSlot(int, str)

  1763.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1764.         patchcanvas.renameGroup(clientId, newClientName)

  1765.         self.updateMiniCanvasLater()

  1766. 

  1767.     @pyqtSlot(int, int, int)

  1768.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1769.         pcIcon = patchcanvas.ICON_APPLICATION

  1770. 

  1771.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1772.             pcIcon = patchcanvas.ICON_PLUGIN

  1773.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1774.             pcIcon = patchcanvas.ICON_HARDWARE

  1775.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1776.             pass

  1777.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1778.             pcIcon = patchcanvas.ICON_DISTRHO

  1779.         elif clientIcon == PATCHBAY_ICON_FILE:

  1780.             pcIcon = patchcanvas.ICON_FILE

  1781. 

  1782.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1783.         self.updateMiniCanvasLater()

  1784. 

  1785.         if pluginId < 0:

  1786.             return

  1787.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1788.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1789.             return

  1790. 

  1791.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1792.             hasCustomUI = False

  1793.             hasInlineDisplay = False

  1794.         else:

  1795.             hints = self.host.get_plugin_info(pluginId)['hints']

  1796.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1797.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1798. 

  1799.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1800. 

  1801.     @pyqtSlot(int, int, int, int, int)

  1802.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1803.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1804.             patchcanvas.splitGroup(clientId)

  1805.         else:

  1806.             patchcanvas.joinGroup(clientId)

  1807.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1808.         self.updateMiniCanvasLater()

  1809. 

  1810.     @pyqtSlot(int, int, int, int, str)

  1811.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1812.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1813.             portMode = patchcanvas.PORT_MODE_INPUT

  1814.         else:

  1815.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1816. 

  1817.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1818.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1819.             isAlternate = False

  1820.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1821.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1822.             isAlternate = False

  1823.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1824.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1825.             isAlternate = False

  1826.         else:

  1827.             portType    = patchcanvas.PORT_TYPE_NULL

  1828.             isAlternate = False

  1829. 

  1830.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1831.         self.updateMiniCanvasLater()

  1832. 

  1833.     @pyqtSlot(int, int)

  1834.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1835.         patchcanvas.removePort(groupId, portId)

  1836.         self.updateMiniCanvasLater()

  1837. 

  1838.     @pyqtSlot(int, int, int, int, str)

  1839.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1840.         patchcanvas.renamePort(groupId, portId, newPortName)

  1841.         self.updateMiniCanvasLater()

  1842. 

  1843.     @pyqtSlot(int, int, int, str)

  1844.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1845.         # TODO

  1846.         pass

  1847. 

  1848.     @pyqtSlot(int, int)

  1849.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1850.         # TODO

  1851.         pass

  1852. 

  1853.     @pyqtSlot(int, int, int, str)

  1854.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1855.         # TODO

  1856.         pass

  1857. 

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

  1859.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1860.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1861.         self.updateMiniCanvasLater()

  1862. 

  1863.     @pyqtSlot(int, int, int)

  1864.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1865.         patchcanvas.disconnectPorts(connectionId)

  1866.         self.updateMiniCanvasLater()

  1867. 

  1868.     # --------------------------------------------------------------------------------------------------------

  1869.     # Settings

  1870. 

  1871.     def saveSettings(self):

  1872.         settings = QSafeSettings()

  1873. 

  1874.         settings.setValue("Geometry", self.saveGeometry())

  1875.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1876.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1877. 

  1878.         diskFolders = []

  1879. 

  1880.         for i in range(self.ui.cb_disk.count()):

  1881.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1882. 

  1883.         settings.setValue("DiskFolders", diskFolders)

  1884.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1885. 

  1886.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1887.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1888.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1889.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1890. 

  1891.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1892.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1893. 

  1894.         return settings

  1895. 

  1896.     def loadSettings(self, firstTime):

  1897.         settings = QSafeSettings()

  1898. 

  1899.         if firstTime:

  1900.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1901.             if not geometry.isNull():

  1902.                 self.restoreGeometry(geometry)

  1903. 

  1904.             showToolbar = settings.value("ShowToolbar", True, bool)

  1905.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1906.             self.ui.toolBar.setEnabled(showToolbar)

  1907.             self.ui.toolBar.setVisible(showToolbar)

  1908. 

  1909.             #if settings.contains("SplitterState"):

  1910.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1911.             #else:

  1912.                 #self.ui.splitter.setSizes([210, 99999])

  1913. 

  1914.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1915.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1916.             self.slot_showSidePanel(showSidePanel)

  1917. 

  1918.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1919. 

  1920.             self.ui.cb_disk.setItemData(0, HOME)

  1921. 

  1922.             for i in range(len(diskFolders)):

  1923.                 if i == 0: continue

  1924.                 folder = diskFolders[i]

  1925.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1926. 

  1927.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1928.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1929. 

  1930.             showMeters = settings.value("ShowMeters", True, bool)

  1931.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1932.             self.ui.peak_in.setVisible(showMeters)

  1933.             self.ui.peak_out.setVisible(showMeters)

  1934. 

  1935.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1936.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1937.             self.ui.scrollArea.setVisible(showKeyboard)

  1938. 

  1939.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1940.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1941. 

  1942.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1943. 

  1944.         # TODO - complete this

  1945. 

  1946.         self.fSavedSettings = {

  1947.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1948.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1949.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1950.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  1951.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1952.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1953.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1954.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1955.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1956.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1957.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1958.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1959.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1960.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1961.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1962.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1963.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1964.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1965.         }

  1966. 

  1967.         if not self.host.isControl:

  1968.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1969.         else:

  1970.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1971. 

  1972.         settings2 = QSafeSettings("falkTX", "Carla2")

  1973. 

  1974.         if self.host.experimental:

  1975.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1976.             self.ui.act_plugin_add_jack.setVisible(visible)

  1977.         else:

  1978.             self.ui.act_plugin_add_jack.setVisible(False)

  1979. 

  1980.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1981. 

  1982.         setEngineSettings(self.host)

  1983.         self.restartTimersIfNeeded()

  1984. 

  1985.         return settings

  1986. 

  1987.     # --------------------------------------------------------------------------------------------------------

  1988.     # Settings (helpers)

  1989. 

  1990.     def enableTransport(self, enabled):

  1991.         self.ui.group_transport_controls.setEnabled(enabled)

  1992.         self.ui.group_transport_settings.setEnabled(enabled)

  1993. 

  1994.     @pyqtSlot()

  1995.     def slot_restoreCanvasScrollbarValues(self):

  1996.         settings = QSafeSettings()

  1997.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1998.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1999.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2000.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2001. 

  2002.     # --------------------------------------------------------------------------------------------------------

  2003.     # Settings (menu actions)

  2004. 

  2005.     @pyqtSlot(bool)

  2006.     def slot_showSidePanel(self, yesNo):

  2007.         self.ui.dockWidget.setEnabled(yesNo)

  2008.         self.ui.dockWidget.setVisible(yesNo)

  2009. 

  2010.     @pyqtSlot(bool)

  2011.     def slot_showToolbar(self, yesNo):

  2012.         self.ui.toolBar.setEnabled(yesNo)

  2013.         self.ui.toolBar.setVisible(yesNo)

  2014. 

  2015.     @pyqtSlot(bool)

  2016.     def slot_showCanvasMeters(self, yesNo):

  2017.         self.ui.peak_in.setVisible(yesNo)

  2018.         self.ui.peak_out.setVisible(yesNo)

  2019.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2020. 

  2021.     @pyqtSlot(bool)

  2022.     def slot_showCanvasKeyboard(self, yesNo):

  2023.         self.ui.scrollArea.setVisible(yesNo)

  2024.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2025. 

  2026.     @pyqtSlot()

  2027.     def slot_configureCarla(self):

  2028.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2029.         if not dialog.exec_():

  2030.             return

  2031. 

  2032.         self.loadSettings(False)

  2033. 

  2034.         if self.fWithCanvas:

  2035.             patchcanvas.clear()

  2036.             self.setupCanvas()

  2037.             self.slot_miniCanvasCheckAll()

  2038. 

  2039.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2040.             pass

  2041.         elif self.host.is_engine_running():

  2042.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2043. 

  2044.     # --------------------------------------------------------------------------------------------------------

  2045.     # About (menu actions)

  2046. 

  2047.     @pyqtSlot()

  2048.     def slot_aboutCarla(self):

  2049.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2050. 

  2051.     @pyqtSlot()

  2052.     def slot_aboutJuce(self):

  2053.         JuceAboutW(self.fParentOrSelf).exec_()

  2054. 

  2055.     @pyqtSlot()

  2056.     def slot_aboutQt(self):

  2057.         QApplication.instance().aboutQt()

  2058. 

  2059.     # --------------------------------------------------------------------------------------------------------

  2060.     # Disk (menu actions)

  2061. 

  2062.     @pyqtSlot(int)

  2063.     def slot_diskFolderChanged(self, index):

  2064.         if index < 0:

  2065.             return

  2066.         elif index == 0:

  2067.             filename = HOME

  2068.             self.ui.b_disk_remove.setEnabled(False)

  2069.         else:

  2070.             filename = self.ui.cb_disk.itemData(index)

  2071.             self.ui.b_disk_remove.setEnabled(True)

  2072. 

  2073.         self.fDirModel.setRootPath(filename)

  2074.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2075. 

  2076.     @pyqtSlot()

  2077.     def slot_diskFolderAdd(self):

  2078.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2079. 

  2080.         if newPath:

  2081.             if newPath[-1] == os.sep:

  2082.                 newPath = newPath[:-1]

  2083.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2084.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2085.             self.ui.b_disk_remove.setEnabled(True)

  2086. 

  2087.     @pyqtSlot()

  2088.     def slot_diskFolderRemove(self):

  2089.         index = self.ui.cb_disk.currentIndex()

  2090. 

  2091.         if index <= 0:

  2092.             return

  2093. 

  2094.         self.ui.cb_disk.removeItem(index)

  2095. 

  2096.         if self.ui.cb_disk.currentIndex() == 0:

  2097.             self.ui.b_disk_remove.setEnabled(False)

  2098. 

  2099.     @pyqtSlot(QModelIndex)

  2100.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2101.         filename = self.fDirModel.filePath(modelIndex)

  2102. 

  2103.         if not self.ui.listWidget.isDragUrlValid(filename):

  2104.             return

  2105. 

  2106.         if not self.host.load_file(filename):

  2107.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2108.                              self.tr("Failed to load file"),

  2109.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2110.             return

  2111. 

  2112.         if filename.endswith(".carxp"):

  2113.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2114. 

  2115.     # --------------------------------------------------------------------------------------------------------

  2116.     # Transport

  2117. 

  2118.     def refreshTransport(self, forced = False):

  2119.         if not self.ui.l_transport_time.isVisible():

  2120.             return

  2121.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2122.             return

  2123. 

  2124.         timeInfo = self.host.get_transport_info()

  2125.         playing  = timeInfo['playing']

  2126.         frame    = timeInfo['frame']

  2127.         bpm      = timeInfo['bpm']

  2128. 

  2129.         if playing != self.fLastTransportState or forced:

  2130.             if playing:

  2131.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2132.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2133.                 else:

  2134.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2135.                 self.ui.b_transport_play.setChecked(True)

  2136.                 self.ui.b_transport_play.setIcon(icon)

  2137.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2138.             else:

  2139.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2140.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2141.                 else:

  2142.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2143.                 self.ui.b_transport_play.setChecked(False)

  2144.                 self.ui.b_transport_play.setIcon(icon)

  2145.                 #self.ui.b_play.setText(self.tr("&Play"))

  2146. 

  2147.             self.fLastTransportState = playing

  2148. 

  2149.         if frame != self.fLastTransportFrame or forced:

  2150.             self.fLastTransportFrame = frame

  2151. 

  2152.             time = frame / self.fSampleRate

  2153.             secs =  time % 60

  2154.             mins = (time / 60) % 60

  2155.             hrs  = (time / 3600) % 60

  2156.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2157. 

  2158.             frame1 =  frame % 1000

  2159.             frame2 = (frame / 1000) % 1000

  2160.             frame3 = (frame / 1000000) % 1000

  2161.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2162. 

  2163.             bar  = timeInfo['bar']

  2164.             beat = timeInfo['beat']

  2165.             tick = timeInfo['tick']

  2166.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2167. 

  2168.         if bpm != self.fLastTransportBPM or forced:

  2169.             self.fLastTransportBPM = bpm

  2170. 

  2171.             if bpm > 0.0:

  2172.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2173.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2174.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2175.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2176.             else:

  2177.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2178. 

  2179.     # --------------------------------------------------------------------------------------------------------

  2180.     # Transport (menu actions)

  2181. 

  2182.     @pyqtSlot(bool)

  2183.     def slot_transportPlayPause(self, toggled):

  2184.         if self.host.isPlugin or not self.host.is_engine_running():

  2185.             return

  2186. 

  2187.         if toggled:

  2188.             self.host.transport_play()

  2189.         else:

  2190.             self.host.transport_pause()

  2191. 

  2192.         self.refreshTransport()

  2193. 

  2194.     @pyqtSlot()

  2195.     def slot_transportStop(self):

  2196.         if self.host.isPlugin or not self.host.is_engine_running():

  2197.             return

  2198. 

  2199.         self.host.transport_pause()

  2200.         self.host.transport_relocate(0)

  2201. 

  2202.         self.refreshTransport()

  2203. 

  2204.     @pyqtSlot()

  2205.     def slot_transportBackwards(self):

  2206.         if self.host.isPlugin or not self.host.is_engine_running():

  2207.             return

  2208. 

  2209.         newFrame = self.host.get_current_transport_frame() - 100000

  2210. 

  2211.         if newFrame < 0:

  2212.             newFrame = 0

  2213. 

  2214.         self.host.transport_relocate(newFrame)

  2215. 

  2216.     @pyqtSlot(float)

  2217.     def slot_transportBpmChanged(self, newValue):

  2218.         self.host.transport_bpm(newValue)

  2219. 

  2220.     @pyqtSlot()

  2221.     def slot_transportForwards(self):

  2222.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2223.             return

  2224. 

  2225.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2226.         self.host.transport_relocate(newFrame)

  2227. 

  2228.     @pyqtSlot(bool)

  2229.     def slot_transportJackEnabled(self, clicked):

  2230.         if not self.host.is_engine_running():

  2231.             return

  2232.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2233.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2234.                                     self.host.transportMode,

  2235.                                     self.host.transportExtra)

  2236. 

  2237.     @pyqtSlot(bool)

  2238.     def slot_transportLinkEnabled(self, clicked):

  2239.         if not self.host.is_engine_running():

  2240.             return

  2241.         extra = ":link:" if clicked else ""

  2242.         self.host.transportExtra = extra

  2243.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2244.                                     self.host.transportMode,

  2245.                                     self.host.transportExtra)

  2246. 

  2247.     # --------------------------------------------------------------------------------------------------------

  2248.     # Other

  2249. 

  2250.     @pyqtSlot(bool)

  2251.     def slot_xrunClear(self):

  2252.         self.host.clear_engine_xruns()

  2253. 

  2254.     # --------------------------------------------------------------------------------------------------------

  2255.     # Canvas scrollbars

  2256. 

  2257.     @pyqtSlot(int)

  2258.     def slot_horizontalScrollBarChanged(self, value):

  2259.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2260.         if maximum == 0:

  2261.             xp = 0

  2262.         else:

  2263.             xp = float(value) / maximum

  2264.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2265.         self.updateCanvasInitialPos()

  2266. 

  2267.     @pyqtSlot(int)

  2268.     def slot_verticalScrollBarChanged(self, value):

  2269.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2270.         if maximum == 0:

  2271.             yp = 0

  2272.         else:

  2273.             yp = float(value) / maximum

  2274.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2275.         self.updateCanvasInitialPos()

  2276. 

  2277.     # --------------------------------------------------------------------------------------------------------

  2278.     # Canvas keyboard

  2279. 

  2280.     @pyqtSlot(int)

  2281.     def slot_noteOn(self, note):

  2282.         if self.fPluginCount == 0:

  2283.             return

  2284. 

  2285.         for pluginId in self.fSelectedPlugins:

  2286.             self.host.send_midi_note(pluginId, 0, note, 100)

  2287. 

  2288.             pedit = self.getPluginEditDialog(pluginId)

  2289.             pedit.noteOn(0, note, 100)

  2290. 

  2291.     @pyqtSlot(int)

  2292.     def slot_noteOff(self, note):

  2293.         if self.fPluginCount == 0:

  2294.             return

  2295. 

  2296.         for pluginId in self.fSelectedPlugins:

  2297.             self.host.send_midi_note(pluginId, 0, note, 0)

  2298. 

  2299.             pedit = self.getPluginEditDialog(pluginId)

  2300.             pedit.noteOff(0, note)

  2301. 

  2302.     # --------------------------------------------------------------------------------------------------------

  2303.     # Canvas keyboard (host callbacks)

  2304. 

  2305.     @pyqtSlot(int, int, int, int)

  2306.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2307.         if pluginId in self.fSelectedPlugins:

  2308.             self.ui.keyboard.sendNoteOn(note, False)

  2309. 

  2310.     @pyqtSlot(int, int, int)

  2311.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2312.         if pluginId in self.fSelectedPlugins:

  2313.             self.ui.keyboard.sendNoteOff(note, False)

  2314. 

  2315.     # --------------------------------------------------------------------------------------------------------

  2316. 

  2317.     @pyqtSlot(int)

  2318.     def slot_handleUpdateCallback(self, pluginId):

  2319.         pitem = self.getPluginItem(pluginId)

  2320. 

  2321.         if pitem is None:

  2322.             return

  2323. 

  2324.         wasCompacted = pitem.isCompacted()

  2325.         isCompacted  = wasCompacted

  2326. 

  2327.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2328.         if not check:

  2329.             return

  2330.         isCompacted = bool(check == "true")

  2331. 

  2332.         if wasCompacted == isCompacted:

  2333.             return

  2334. 

  2335.         pitem.recreateWidget(True)

  2336. 

  2337.     # --------------------------------------------------------------------------------------------------------

  2338.     # MiniCanvas stuff

  2339. 

  2340.     @pyqtSlot()

  2341.     def slot_miniCanvasCheckAll(self):

  2342.         self.slot_miniCanvasCheckSize()

  2343.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2344.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2345. 

  2346.     @pyqtSlot()

  2347.     def slot_miniCanvasCheckSize(self):

  2348.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2349.             return

  2350. 

  2351.         currentIndex = self.ui.tabWidget.currentIndex()

  2352. 

  2353.         if currentIndex == 1:

  2354.             width  = self.ui.graphicsView.width()

  2355.             height = self.ui.graphicsView.height()

  2356.         else:

  2357.             self.ui.tabWidget.blockSignals(True)

  2358.             self.ui.tabWidget.setCurrentIndex(1)

  2359.             width  = self.ui.graphicsView.width()

  2360.             height = self.ui.graphicsView.height()

  2361.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2362.             self.ui.tabWidget.blockSignals(False)

  2363. 

  2364.         self.scene.updateLimits()

  2365. 

  2366.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2367. 

  2368.     @pyqtSlot(float, float)

  2369.     def slot_miniCanvasMoved(self, xp, yp):

  2370.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2371.         vsb = self.ui.graphicsView.verticalScrollBar()

  2372.         hsb.setValue(xp * hsb.maximum())

  2373.         vsb.setValue(yp * vsb.maximum())

  2374.         self.updateCanvasInitialPos()

  2375. 

  2376.     # --------------------------------------------------------------------------------------------------------

  2377.     # Logs autoscroll, save and clear

  2378. 

  2379.     @pyqtSlot(int)

  2380.     def slot_toggleLogAutoscroll(self, checkState):

  2381.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2382.         if self.autoscrollOnNewLog:

  2383.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2384. 

  2385.     @pyqtSlot(int)

  2386.     def slot_logSliderMoved(self, slider_pos):

  2387.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2388.             self.lastLogSliderPos = slider_pos

  2389.         else:

  2390.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2391. 

  2392.     @pyqtSlot()

  2393.     def slot_logButtonsState(self, enabled=True):

  2394.         self.ui.logs_clear.setEnabled(enabled)

  2395.         self.ui.logs_save.setEnabled(enabled)

  2396. 

  2397.     @pyqtSlot()

  2398.     def slot_logSave(self):

  2399.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2400.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2401. 

  2402.         if not filename:

  2403.             return

  2404. 

  2405.         try:

  2406.             with open(filename, "w") as logfile:

  2407.                 logfile.write(self.ui.text_logs.toPlainText())

  2408.                 logfile.close()

  2409.         except:

  2410.             return

  2411. 

  2412.     @pyqtSlot()

  2413.     def slot_logClear(self):

  2414.         self.ui.text_logs.clear()

  2415.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2416.         self.slot_logButtonsState(False)

  2417. 

  2418.     # --------------------------------------------------------------------------------------------------------

  2419.     # Timers

  2420. 

  2421.     def startTimers(self):

  2422.         if self.fIdleTimerFast == 0:

  2423.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2424. 

  2425.         if self.fIdleTimerSlow == 0:

  2426.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2427. 

  2428.     def restartTimersIfNeeded(self):

  2429.         if self.fIdleTimerFast != 0:

  2430.             self.killTimer(self.fIdleTimerFast)

  2431.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2432. 

  2433.         if self.fIdleTimerSlow != 0:

  2434.             self.killTimer(self.fIdleTimerSlow)

  2435.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2436. 

  2437.     def killTimers(self):

  2438.         if self.fIdleTimerFast != 0:

  2439.             self.killTimer(self.fIdleTimerFast)

  2440.             self.fIdleTimerFast = 0

  2441. 

  2442.         if self.fIdleTimerSlow != 0:

  2443.             self.killTimer(self.fIdleTimerSlow)

  2444.             self.fIdleTimerSlow = 0

  2445. 

  2446.     # --------------------------------------------------------------------------------------------------------

  2447.     # Misc

  2448. 

  2449.     @pyqtSlot(int)

  2450.     def slot_tabChanged(self, index):

  2451.         if index != 1:

  2452.             return

  2453. 

  2454.         self.ui.graphicsView.setFocus()

  2455. 

  2456.     @pyqtSlot(int)

  2457.     def slot_handleReloadAllCallback(self, pluginId):

  2458.         if pluginId >= self.fPluginCount:

  2459.             return

  2460. 

  2461.         pitem = self.fPluginList[pluginId]

  2462.         if pitem is None:

  2463.             return

  2464. 

  2465.         pitem.recreateWidget()

  2466. 

  2467.     # --------------------------------------------------------------------------------------------------------

  2468. 

  2469.     @pyqtSlot(int, int, str)

  2470.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2471.         if opcode == NSM_CALLBACK_INIT:

  2472.             return

  2473. 

  2474.         # Error

  2475.         elif opcode == NSM_CALLBACK_ERROR:

  2476.             pass

  2477. 

  2478.         # Reply

  2479.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2480.             self.fFirstEngineInit    = False

  2481.             self.fSessionManagerName = valueStr

  2482.             self.setProperWindowTitle()

  2483. 

  2484.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2485.             if (valueInt & (1 << 1)) == 0x0:

  2486.                 self.fWindowCloseHideGui = False

  2487.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2488.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2489.                 self.show()

  2490. 

  2491.         # Open

  2492.         elif opcode == NSM_CALLBACK_OPEN:

  2493.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2494.             self.setProperWindowTitle()

  2495. 

  2496.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2497.             self.slot_engineStop(True)

  2498.             return

  2499. 

  2500.         # Save

  2501.         elif opcode == NSM_CALLBACK_SAVE:

  2502.             self.saveProjectNow()

  2503. 

  2504.         # Session is Loaded

  2505.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2506.             pass

  2507. 

  2508.         # Show Optional Gui

  2509.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2510.             self.show()

  2511. 

  2512.         # Hide Optional Gui

  2513.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2514.             self.hideForNSM()

  2515. 

  2516.         # Set client name

  2517.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2518.             self.fClientName = valueStr

  2519.             return

  2520. 

  2521.         self.host.nsm_ready(opcode)

  2522. 

  2523.     # --------------------------------------------------------------------------------------------------------

  2524. 

  2525.     def fixLogText(self, text):

  2526.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2527. 

  2528.     @pyqtSlot(int, int, int, int, float, str)

  2529.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2530.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2531. 

  2532.     @pyqtSlot(str)

  2533.     def slot_handleInfoCallback(self, info):

  2534.         QMessageBox.information(self, "Information", info)

  2535. 

  2536.     @pyqtSlot(str)

  2537.     def slot_handleErrorCallback(self, error):

  2538.         QMessageBox.critical(self, "Error", error)

  2539. 

  2540.     @pyqtSlot()

  2541.     def slot_handleQuitCallback(self):

  2542.         self.fIsProjectLoading = False

  2543.         self.killTimers()

  2544.         self.removeAllPlugins()

  2545.         self.projectLoadingFinished()

  2546. 

  2547.     @pyqtSlot(int)

  2548.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2549.         # FIXME

  2550.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2551.             patchcanvas.redrawPluginGroup(pluginId)

  2552. 

  2553.     # --------------------------------------------------------------------------------------------------------

  2554. 

  2555.     @pyqtSlot()

  2556.     def slot_handleSIGUSR1(self):

  2557.         print("Got SIGUSR1 -> Saving project now")

  2558.         self.slot_fileSave()

  2559. 

  2560.     @pyqtSlot()

  2561.     def slot_handleSIGTERM(self):

  2562.         print("Got SIGTERM -> Closing now")

  2563.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2564.         self.close()

  2565. 

  2566.     # --------------------------------------------------------------------------------------------------------

  2567.     # Internal stuff

  2568. 

  2569.     def getExtraPtr(self, plugin):

  2570.         ptype = plugin['type']

  2571. 

  2572.         if ptype == PLUGIN_LADSPA:

  2573.             uniqueId = plugin['uniqueId']

  2574. 

  2575.             self.maybeLoadRDFs()

  2576. 

  2577.             for rdfItem in self.fLadspaRdfList:

  2578.                 if rdfItem.UniqueID == uniqueId:

  2579.                     return pointer(rdfItem)

  2580. 

  2581.         elif ptype == PLUGIN_SF2:

  2582.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2583.                 return self._true

  2584. 

  2585.         return None

  2586. 

  2587.     def maybeLoadRDFs(self):

  2588.         if not self.fLadspaRdfNeedsUpdate:

  2589.             return

  2590. 

  2591.         self.fLadspaRdfNeedsUpdate = False

  2592.         self.fLadspaRdfList = []

  2593. 

  2594.         if not haveLRDF:

  2595.             return

  2596. 

  2597.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2598.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2599. 

  2600.         if os.path.exists(frLadspaFile):

  2601.             frLadspa = open(frLadspaFile, 'r')

  2602. 

  2603.             try:

  2604.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2605.             except:

  2606.                 pass

  2607. 

  2608.             frLadspa.close()

  2609. 

  2610.     # --------------------------------------------------------------------------------------------------------

  2611. 

  2612.     def getPluginCount(self):

  2613.         return self.fPluginCount

  2614. 

  2615.     def getPluginItem(self, pluginId):

  2616.         if pluginId >= self.fPluginCount:

  2617.             return None

  2618. 

  2619.         pitem = self.fPluginList[pluginId]

  2620.         if pitem is None:

  2621.             return None

  2622.         #if False:

  2623.             #return CarlaRackItem(self, 0, False)

  2624. 

  2625.         return pitem

  2626. 

  2627.     def getPluginEditDialog(self, pluginId):

  2628.         if pluginId >= self.fPluginCount:

  2629.             return None

  2630. 

  2631.         pitem = self.fPluginList[pluginId]

  2632.         if pitem is None:

  2633.             return None

  2634.         if False:

  2635.             return PluginEdit(self, self.host, 0)

  2636. 

  2637.         return pitem.getEditDialog()

  2638. 

  2639.     def getPluginSlotWidget(self, pluginId):

  2640.         if pluginId >= self.fPluginCount:

  2641.             return None

  2642. 

  2643.         pitem = self.fPluginList[pluginId]

  2644.         if pitem is None:

  2645.             return None

  2646.         #if False:

  2647.             #return AbstractPluginSlot()

  2648. 

  2649.         return pitem.getWidget()

  2650. 

  2651.     # --------------------------------------------------------------------------------------------------------

  2652. 

  2653.     def waitForPendingEvents(self):

  2654.         pass

  2655. 

  2656.     # --------------------------------------------------------------------------------------------------------

  2657.     # show/hide event

  2658. 

  2659.     def showEvent(self, event):

  2660.         self.getAndRefreshRuntimeInfo()

  2661.         self.refreshTransport(True)

  2662.         QMainWindow.showEvent(self, event)

  2663. 

  2664.         if QT_VERSION >= 0x50600:

  2665.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2666.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2667. 

  2668.         # set our gui as parent for all plugins UIs

  2669.         if self.host.manageUIs and not self.host.isControl:

  2670.             if MACOS:

  2671.                 nsViewPtr = int(self.winId())

  2672.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2673.             else:

  2674.                 winIdStr = "%x" % int(self.winId())

  2675.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2676. 

  2677.     def hideEvent(self, event):

  2678.         # disable parent

  2679.         if not self.host.isControl:

  2680.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2681. 

  2682.         QMainWindow.hideEvent(self, event)

  2683. 

  2684.     # --------------------------------------------------------------------------------------------------------

  2685.     # resize event

  2686. 

  2687.     def resizeEvent(self, event):

  2688.         QMainWindow.resizeEvent(self, event)

  2689. 

  2690.         if self.fWithCanvas:

  2691.             self.slot_miniCanvasCheckSize()

  2692. 

  2693.     # --------------------------------------------------------------------------------------------------------

  2694.     # timer event

  2695. 

  2696.     def refreshRuntimeInfo(self, load, xruns):

  2697.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2698.         txt2 = "" if (xruns == 1) else "s"

  2699.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2700.         self.ui.pb_dsp_load.setValue(int(load))

  2701. 

  2702.     def getAndRefreshRuntimeInfo(self):

  2703.         if not self.ui.pb_dsp_load.isVisible():

  2704.             return

  2705.         if not self.host.is_engine_running():

  2706.             return

  2707.         info = self.host.get_runtime_engine_info()

  2708.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2709. 

  2710.     def idleFast(self):

  2711.         self.host.engine_idle()

  2712.         self.refreshTransport()

  2713. 

  2714.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2715.             return

  2716. 

  2717.         for pitem in self.fPluginList:

  2718.             if pitem is None:

  2719.                 break

  2720. 

  2721.             pitem.getWidget().idleFast()

  2722. 

  2723.         for pluginId in self.fSelectedPlugins:

  2724.             self.fPeaksCleared = False

  2725.             if self.ui.peak_in.isVisible():

  2726.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2727.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2728.             if self.ui.peak_out.isVisible():

  2729.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2730.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2731.             return

  2732. 

  2733.         if self.fPeaksCleared:

  2734.             return

  2735. 

  2736.         self.fPeaksCleared = True

  2737.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2738.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2739.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2740.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2741. 

  2742.     def idleSlow(self):

  2743.         self.getAndRefreshRuntimeInfo()

  2744. 

  2745.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2746.             return

  2747. 

  2748.         for pitem in self.fPluginList:

  2749.             if pitem is None:

  2750.                 break

  2751. 

  2752.             pitem.getWidget().idleSlow()

  2753. 

  2754.     def timerEvent(self, event):

  2755.         if event.timerId() == self.fIdleTimerFast:

  2756.             self.idleFast()

  2757. 

  2758.         elif event.timerId() == self.fIdleTimerSlow:

  2759.             self.idleSlow()

  2760. 

  2761.         QMainWindow.timerEvent(self, event)

  2762. 

  2763.     # --------------------------------------------------------------------------------------------------------

  2764.     # color/style change event

  2765. 

  2766.     def changeEvent(self, event):

  2767.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2768.             self.updateStyle()

  2769.         QMainWindow.changeEvent(self, event)

  2770. 

  2771.     def updateStyle(self):

  2772.         # Rack padding images setup

  2773.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2774.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2775. 

  2776.         min_value = 0.07

  2777. 

  2778.         if PYQT_VERSION >= 0x50600:

  2779.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2780.         else:

  2781.             value_fix = 1.5

  2782. 

  2783.         rack_pal = self.ui.rack.palette()

  2784.         bg_color = rack_pal.window().color()

  2785.         fg_color = rack_pal.text().color()

  2786.         bg_value = 1.0 - bg_color.blackF()

  2787.         if bg_value != 0.0 and bg_value < min_value:

  2788.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2789.         else:

  2790.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2791. 

  2792.         painter = QPainter()

  2793.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2794. 

  2795.         painter.begin(rack_imgL)

  2796.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2797.         painter.setBrush(pad_color)

  2798.         painter.drawRect(fillRect)

  2799.         painter.end()

  2800.         rack_pixmapL = QPixmap(rack_imgL)

  2801.         self.imgL_palette = QPalette()

  2802.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2803.         self.ui.pad_left.setPalette(self.imgL_palette)

  2804.         self.ui.pad_left.setAutoFillBackground(True)

  2805. 

  2806.         painter.begin(rack_imgR)

  2807.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2808.         painter.setBrush(pad_color)

  2809.         painter.drawRect(fillRect)

  2810.         painter.end()

  2811.         rack_pixmapR = QPixmap(rack_imgR)

  2812.         self.imgR_palette = QPalette()

  2813.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2814.         self.ui.pad_right.setPalette(self.imgR_palette)

  2815.         self.ui.pad_right.setAutoFillBackground(True)

  2816. 

  2817.         # qt's rgba is actually argb, so convert that

  2818.         bg_color_value = bg_color.rgba()

  2819.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2820. 

  2821.         fg_color_value = fg_color.rgba()

  2822.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2823. 

  2824.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2825.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2826. 

  2827.     # --------------------------------------------------------------------------------------------------------

  2828.     # paint event

  2829. 

  2830.     #def paintEvent(self, event):

  2831.         #QMainWindow.paintEvent(self, event)

  2832. 

  2833.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2834.             #return

  2835. 

  2836.         #painter = QPainter(self)

  2837.         #painter.setBrush(QColor(36, 36, 36))

  2838.         #painter.setPen(QColor(62, 62, 62))

  2839.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2840. 

  2841.     # --------------------------------------------------------------------------------------------------------

  2842.     # close event

  2843. 

  2844.     def shouldIgnoreClose(self):

  2845.         if self.host.isControl or self.host.isPlugin:

  2846.             return False

  2847.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2848.             return False

  2849.         if self.fWindowCloseHideGui:

  2850.             return False

  2851.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2852.             return QMessageBox.question(self, self.tr("Quit"),

  2853.                                               self.tr("Are you sure you want to quit Carla?"),

  2854.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2855.         return False

  2856. 

  2857.     def closeEvent(self, event):

  2858.         if self.shouldIgnoreClose():

  2859.             event.ignore()

  2860.             return

  2861. 

  2862.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2863.             self.hideForNSM()

  2864.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2865.             return

  2866. 

  2867.         patchcanvas.handleAllPluginsRemoved()

  2868. 

  2869.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2870.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2871.             self.fMacClosingHelper = False

  2872.             event.ignore()

  2873. 

  2874.             for i in reversed(range(self.fPluginCount)):

  2875.                 self.host.show_custom_ui(i, False)

  2876. 

  2877.             QTimer.singleShot(100, self.close)

  2878.             return

  2879. 

  2880.         self.killTimers()

  2881.         self.saveSettings()

  2882. 

  2883.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2884.             if not self.slot_engineStop(True):

  2885.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2886.                 event.ignore()

  2887.                 return

  2888. 

  2889.         QMainWindow.closeEvent(self, event)

  2890. 

  2891.         # if we reach this point, fully close ourselves

  2892.         gCarla.gui = None

  2893.         QApplication.instance().quit()

  2894. 

  2895. # ------------------------------------------------------------------------------------------------

  2896. # Canvas callback

  2897. 

  2898. def canvasCallback(action, value1, value2, valueStr):

  2899.     host = gCarla.gui.host

  2900. 

  2901.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2902.         return

  2903. 

  2904.     if action == patchcanvas.ACTION_GROUP_INFO:

  2905.         pass

  2906. 

  2907.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2908.         pass

  2909. 

  2910.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2911.         groupId = value1

  2912.         patchcanvas.splitGroup(groupId)

  2913.         gCarla.gui.updateMiniCanvasLater()

  2914. 

  2915.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2916.         groupId = value1

  2917.         patchcanvas.joinGroup(groupId)

  2918.         gCarla.gui.updateMiniCanvasLater()

  2919. 

  2920.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2921.         if gCarla.gui.fIsProjectLoading:

  2922.             return

  2923.         if not host.is_engine_running():

  2924.             return

  2925.         groupId = value1

  2926.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2927.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2928.         gCarla.gui.updateMiniCanvasLater()

  2929. 

  2930.     elif action == patchcanvas.ACTION_PORT_INFO:

  2931.         pass

  2932. 

  2933.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2934.         pass

  2935. 

  2936.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2937.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2938. 

  2939.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2940.             print("Connection failed:", host.get_last_error())

  2941. 

  2942.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2943.         connectionId = value1

  2944. 

  2945.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2946.             print("Disconnect failed:", host.get_last_error())

  2947. 

  2948.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2949.         pluginId = value1

  2950. 

  2951.         if not host.clone_plugin(pluginId):

  2952.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2953.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2954. 

  2955.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2956.         pluginId = value1

  2957.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2958. 

  2959.         if pwidget is not None:

  2960.             pwidget.showEditDialog()

  2961. 

  2962.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2963.         pluginId = value1

  2964.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2965. 

  2966.         if pwidget is not None:

  2967.             pwidget.showRenameDialog()

  2968. 

  2969.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2970.         pluginId = value1

  2971.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2972. 

  2973.         if pwidget is not None:

  2974.             pwidget.showReplaceDialog()

  2975. 

  2976.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2977.         pluginId = value1

  2978. 

  2979.         if not host.remove_plugin(pluginId):

  2980.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2981.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2982. 

  2983.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2984.         pluginId = value1

  2985.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2986. 

  2987.         if pwidget is not None:

  2988.             pwidget.showCustomUI()

  2989. 

  2990.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2991.         gCarla.gui.slot_showPluginActionsMenu()

  2992. 

  2993.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2994.         if gCarla.gui.fIsProjectLoading:

  2995.             return

  2996.         if not host.is_engine_running():

  2997.             return

  2998.         pluginId = value1

  2999.         width, height = [int(v) for v in valueStr.split(":")]

  3000.         return host.render_inline_display(pluginId, width, height)

  3001. 

  3002. # ------------------------------------------------------------------------------------------------------------

  3003. # Engine callback

  3004. 

  3005. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3006.     # kdevelop likes this :)

  3007.     if False: host = CarlaHostNull()

  3008. 

  3009.     valueStr = charPtrToString(valueStr)

  3010. 

  3011.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3012.         host.processMode   = value1

  3013.         host.transportMode = value2

  3014.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3015.         host.processMode   = value1

  3016.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3017.         host.transportMode  = value1

  3018.         host.transportExtra = valueStr

  3019. 

  3020.     if action == ENGINE_CALLBACK_DEBUG:

  3021.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3022.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3023.         host.PluginAddedCallback.emit(pluginId, valueStr)

  3024.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3025.         host.PluginRemovedCallback.emit(pluginId)

  3026.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3027.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3028.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3029.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3030.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3031.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3032.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3033.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3034.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3035.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3036.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3037.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3038.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3039.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3040.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3041.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3042.         host.ProgramChangedCallback.emit(pluginId, value1)

  3043.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3044.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3045.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3046.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3047.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3048.         host.UiStateChangedCallback.emit(pluginId, value1)

  3049.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3050.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3051.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3052.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3053.     elif action == ENGINE_CALLBACK_UPDATE:

  3054.         host.UpdateCallback.emit(pluginId)

  3055.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3056.         host.ReloadInfoCallback.emit(pluginId)

  3057.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3058.         host.ReloadParametersCallback.emit(pluginId)

  3059.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3060.         host.ReloadProgramsCallback.emit(pluginId)

  3061.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3062.         host.ReloadAllCallback.emit(pluginId)

  3063.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3064.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3065.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3066.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3067.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3068.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3069.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3070.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3071.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3072.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3073.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3074.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3075.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3076.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3077.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3078.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3079.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3080.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3081.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3082.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3083.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3084.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3085.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3086.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3087.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3088.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3089.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3090.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3091.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3092.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3093.         host.EngineStoppedCallback.emit()

  3094.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3095.         host.ProcessModeChangedCallback.emit(value1)

  3096.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3097.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3098.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3099.         host.BufferSizeChangedCallback.emit(value1)

  3100.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3101.         host.SampleRateChangedCallback.emit(valuef)

  3102.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3103.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3104.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3105.         host.ProjectLoadFinishedCallback.emit()

  3106.     elif action == ENGINE_CALLBACK_NSM:

  3107.         host.NSMCallback.emit(value1, value2, valueStr)

  3108.     elif action == ENGINE_CALLBACK_IDLE:

  3109.         QApplication.processEvents()

  3110.     elif action == ENGINE_CALLBACK_INFO:

  3111.         host.InfoCallback.emit(valueStr)

  3112.     elif action == ENGINE_CALLBACK_ERROR:

  3113.         host.ErrorCallback.emit(valueStr)

  3114.     elif action == ENGINE_CALLBACK_QUIT:

  3115.         host.QuitCallback.emit()

  3116.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3117.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3118.     else:

  3119.         print("unhandled action", action)

  3120. 

  3121. # ------------------------------------------------------------------------------------------------------------

  3122. # File callback

  3123. 

  3124. def fileCallback(ptr, action, isDir, title, filter):

  3125.     title  = charPtrToString(title)

  3126.     filter = charPtrToString(filter)

  3127. 

  3128.     if action == FILE_CALLBACK_OPEN:

  3129.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3130.     elif action == FILE_CALLBACK_SAVE:

  3131.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3132.     else:

  3133.         ret, ok = ("", "")

  3134. 

  3135.     # FIXME use ok value, test if it works as expected

  3136.     if not ret:

  3137.         return None

  3138. 

  3139.     # FIXME

  3140.     global fileRet

  3141.     fileRet = c_char_p(ret.encode("utf-8"))

  3142.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3143.     return retval.contents.value

  3144. 

  3145. # ------------------------------------------------------------------------------------------------------------

  3146. # Init host

  3147. 

  3148. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3149.     pathBinaries, pathResources = getPaths(libPrefix)

  3150. 

  3151.     # --------------------------------------------------------------------------------------------------------

  3152.     # Fail if binary dir is not found

  3153. 

  3154.     if not os.path.exists(pathBinaries):

  3155.         if failError:

  3156.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3157.             sys.exit(1)

  3158.         return

  3159. 

  3160.     # --------------------------------------------------------------------------------------------------------

  3161.     # Check if we should open main lib as local or global

  3162. 

  3163.     settings = QSafeSettings("falkTX", "Carla2")

  3164. 

  3165.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3166. 

  3167.     # --------------------------------------------------------------------------------------------------------

  3168.     # Set Carla library name

  3169. 

  3170.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3171.     libname   = os.path.join(pathBinaries, libname)

  3172.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3173. 

  3174.     # --------------------------------------------------------------------------------------------------------

  3175.     # Print info

  3176. 

  3177.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3178.         print("Carla %s started, status:" % VERSION)

  3179.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3180.         print("  Qt version:     %s" % QT_VERSION_STR)

  3181.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3182.         print("  Binary dir:     %s" % pathBinaries)

  3183.         print("  Resources dir:  %s" % pathResources)

  3184. 

  3185.     # --------------------------------------------------------------------------------------------------------

  3186.     # Init host

  3187. 

  3188.     if failError:

  3189.         # no try

  3190.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3191.     else:

  3192.         try:

  3193.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3194.         except:

  3195.             host = CarlaHostQtNull()

  3196. 

  3197.     host.isControl = isControl

  3198.     host.isPlugin  = isPlugin

  3199. 

  3200.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3201.     host.set_file_callback(fileCallback)

  3202. 

  3203.     # If it's a plugin the paths are already set

  3204.     if not isPlugin:

  3205.         host.pathBinaries  = pathBinaries

  3206.         host.pathResources = pathResources

  3207.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3208.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3209. 

  3210.         if not isControl:

  3211.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3212. 

  3213.     # --------------------------------------------------------------------------------------------------------

  3214.     # Init utils

  3215. 

  3216.     gCarla.utils = CarlaUtils(utilsname)

  3217.     gCarla.utils.set_process_name(os.path.basename(initName))

  3218. 

  3219.     try:

  3220.         sys.stdout.flush()

  3221.     except:

  3222.         pass

  3223. 

  3224.     sys.stdout = CarlaPrint(False)

  3225.     sys.stderr = CarlaPrint(True)

  3226.     sys.excepthook = sys_excepthook

  3227. 

  3228.     # --------------------------------------------------------------------------------------------------------

  3229.     # Done

  3230. 

  3231.     return host

  3232. 

  3233. # ------------------------------------------------------------------------------------------------------------

  3234. # Load host settings

  3235. 

  3236. def loadHostSettings(host):

  3237.     # kdevelop likes this :)

  3238.     if False: host = CarlaHostNull()

  3239. 

  3240.     settings = QSafeSettings("falkTX", "Carla2")

  3241. 

  3242.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3243.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3244.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3245.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3246.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3247.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3248.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3249.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3250.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3251.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3252.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3253.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3254.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3255.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3256. 

  3257.     if host.isPlugin:

  3258.         return

  3259. 

  3260.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3261. 

  3262.     # enums

  3263.     if host.audioDriverForced is None:

  3264.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3265. 

  3266.     if not host.processModeForced:

  3267.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3268. 

  3269.     host.nextProcessMode = host.processMode

  3270. 

  3271.     # --------------------------------------------------------------------------------------------------------

  3272.     # fix things if needed

  3273. 

  3274.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3275.         if LADISH_APP_NAME:

  3276.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3277.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3278. 

  3279.         else:

  3280.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3281. 

  3282.     if gCarla.nogui:

  3283.         host.showLogs = False

  3284. 

  3285.     # --------------------------------------------------------------------------------------------------------

  3286.     # run headless host now if nogui option enabled

  3287. 

  3288.     if gCarla.nogui:

  3289.         runHostWithoutUI(host)

  3290. 

  3291. # ------------------------------------------------------------------------------------------------------------

  3292. # Set host settings

  3293. 

  3294. def setHostSettings(host):

  3295.     # kdevelop likes this :)

  3296.     if False: host = CarlaHostNull()

  3297. 

  3298.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3299.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3300.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3301.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3302.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3303.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3304.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3305.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3306. 

  3307.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3308.         return

  3309. 

  3310.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3311.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3312.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3313. 

  3314.     if not (NSM_URL and host.nsmOK):

  3315.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3316. 

  3317. # ------------------------------------------------------------------------------------------------------------

  3318. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3319. 

  3320. def setEngineSettings(host, oscPort = None):

  3321.     # kdevelop likes this :)

  3322.     if False: host = CarlaHostNull()

  3323. 

  3324.     # --------------------------------------------------------------------------------------------------------

  3325.     # do nothing if control

  3326. 

  3327.     if host.isControl:

  3328.         return "Control"

  3329. 

  3330.     # --------------------------------------------------------------------------------------------------------

  3331. 

  3332.     settings = QSafeSettings("falkTX", "Carla2")

  3333. 

  3334.     # --------------------------------------------------------------------------------------------------------

  3335.     # main settings

  3336. 

  3337.     setHostSettings(host)

  3338. 

  3339.     # --------------------------------------------------------------------------------------------------------

  3340.     # file paths

  3341. 

  3342.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3343.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3344. 

  3345.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3346.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3347. 

  3348.     # --------------------------------------------------------------------------------------------------------

  3349.     # plugin paths

  3350. 

  3351.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3352.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3353.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3354.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3355.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3356.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3357.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3358. 

  3359.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3360.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3361.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3362.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3363.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3364.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3365.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3366. 

  3367.     # --------------------------------------------------------------------------------------------------------

  3368.     # don't continue if plugin

  3369. 

  3370.     if host.isPlugin:

  3371.         return "Plugin"

  3372. 

  3373.     # --------------------------------------------------------------------------------------------------------

  3374.     # osc settings

  3375. 

  3376.     if oscPort is not None and isinstance(oscPort, int):

  3377.         oscEnabled = True

  3378.         portNumTCP = portNumUDP = oscPort

  3379. 

  3380.     else:

  3381.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3382. 

  3383.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3384.             portNumTCP = -1

  3385.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3386.             portNumTCP = 0

  3387.         else:

  3388.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3389. 

  3390.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3391.             portNumUDP = -1

  3392.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3393.             portNumUDP = 0

  3394.         else:

  3395.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3396. 

  3397.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3398.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3399.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3400. 

  3401.     # --------------------------------------------------------------------------------------------------------

  3402.     # wine settings

  3403. 

  3404.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3405.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3406.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3407.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3408.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3409.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3410. 

  3411.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3412.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3413.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3414.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3415.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3416.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3417. 

  3418.     # --------------------------------------------------------------------------------------------------------

  3419.     # driver and device settings

  3420. 

  3421.     # driver name

  3422.     if host.audioDriverForced is not None:

  3423.         audioDriver = host.audioDriverForced

  3424.     else:

  3425.         try:

  3426.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3427.         except:

  3428.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3429. 

  3430.     # driver options

  3431.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3432.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3433.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3434.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3435. 

  3436.     # Only setup audio things if engine is not running

  3437.     if not host.is_engine_running():

  3438.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3439.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3440. 

  3441.         if not audioDriver.startswith("JACK"):

  3442.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3443.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3444.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3445. 

  3446.     # --------------------------------------------------------------------------------------------------------

  3447.     # fix things if needed

  3448. 

  3449.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3450.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3451.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3452. 

  3453.     # --------------------------------------------------------------------------------------------------------

  3454.     # return selected driver name

  3455. 

  3456.     return audioDriver

  3457. 

  3458. # ------------------------------------------------------------------------------------------------------------

  3459. # Run Carla without showing UI

  3460. 

  3461. def runHostWithoutUI(host):

  3462.     # kdevelop likes this :)

  3463.     if False: host = CarlaHostNull()

  3464. 

  3465.     # --------------------------------------------------------------------------------------------------------

  3466.     # Some initial checks

  3467. 

  3468.     if not gCarla.nogui:

  3469.         return

  3470. 

  3471.     projectFile = getInitialProjectFile(True)

  3472. 

  3473.     if not isinstance(gCarla.nogui, int):

  3474.         oscPort = None

  3475. 

  3476.         if not projectFile:

  3477.             print("Carla no-gui mode can only be used together with a project file.")

  3478.             sys.exit(1)

  3479. 

  3480.     else:

  3481.         oscPort = gCarla.nogui

  3482. 

  3483.     # --------------------------------------------------------------------------------------------------------

  3484.     # Additional imports

  3485. 

  3486.     from time import sleep

  3487. 

  3488.     # --------------------------------------------------------------------------------------------------------

  3489.     # Init engine

  3490. 

  3491.     audioDriver = setEngineSettings(host, oscPort)

  3492.     if not host.engine_init(audioDriver, "Carla"):

  3493.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3494.         sys.exit(1)

  3495. 

  3496.     if projectFile and not host.load_project(projectFile):

  3497.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3498.         host.engine_close()

  3499.         sys.exit(1)

  3500. 

  3501.     # --------------------------------------------------------------------------------------------------------

  3502.     # Idle

  3503. 

  3504.     print("Carla ready!")

  3505. 

  3506.     while host.is_engine_running() and not gCarla.term:

  3507.         host.engine_idle()

  3508.         sleep(0.0333) # 30 Hz

  3509. 

  3510.     # --------------------------------------------------------------------------------------------------------

  3511.     # Stop

  3512. 

  3513.     host.engine_close()

  3514.     sys.exit(0)

  3515. 

  3516. # ------------------------------------------------------------------------------------------------------------