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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

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

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

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

  25. # Imports (ctypes)

  26. 

  27. from ctypes import (

  28.     byref, pointer

  29. )

  30. 

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

  32. # Imports (PyQt5)

  33. 

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

  35. try:

  36.     from PyQt5.Qt import PYQT_VERSION

  37. except ImportError:

  38.     PYQT_VERSION = 0x50600

  39. 

  40. from PyQt5.QtCore import (

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

  42. )

  43. from PyQt5.QtGui import (

  44.     QImage, QImageWriter, QPainter, QPalette, QBrush

  45. )

  46. from PyQt5.QtWidgets import (

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

  48. )

  49. 

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

  51. # Imports (Custom)

  52. 

  53. import ui_carla_host

  54. 

  55. from carla_app import *

  56. from carla_backend import *

  57. from carla_backend_qt import CarlaHostQtDLL, CarlaHostQtNull

  58. from carla_shared import *

  59. from carla_settings import *

  60. from carla_utils import *

  61. from carla_widgets import *

  62. 

  63. from patchcanvas import patchcanvas

  64. from pluginlist import PluginDatabaseW

  65. from widgets.digitalpeakmeter import DigitalPeakMeter

  66. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  67. 

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

  69. # Try Import OpenGL

  70. 

  71. try:

  72.     from PyQt5.QtOpenGL import QGLWidget

  73.     hasGL = True

  74. except:

  75.     hasGL = False

  76. 

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

  78. # Safe exception hook, needed for PyQt5

  79. 

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

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

  82. 

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

  84. # Session Management support

  85. 

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

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

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

  89. 

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

  91. # Small print helper

  92. 

  93. def processMode2Str(processMode):

  94.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  95.         return "Single client"

  96.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  97.         return "Multi client"

  98.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  99.         return "Continuous Rack"

  100.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  101.         return "Patchbay"

  102.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  103.         return "Bridge"

  104.     return "Unknown"

  105. 

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

  107. # Carla Print class

  108. 

  109. class CarlaPrint:

  110.     def __init__(self, err):

  111.         self.err = err

  112. 

  113.     def flush(self):

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

  115. 

  116.     def write(self, string):

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

  118. 

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

  120. # Host Window

  121. 

  122. class HostWindow(QMainWindow):

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

  124.     # signals

  125.     SIGTERM = pyqtSignal()

  126.     SIGUSR1 = pyqtSignal()

  127. 

  128.     # CustomActions

  129.     CUSTOM_ACTION_NONE         = 0

  130.     CUSTOM_ACTION_APP_CLOSE    = 1

  131.     CUSTOM_ACTION_PROJECT_LOAD = 2

  132. 

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

  134. 

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

  136.         QMainWindow.__init__(self, parent)

  137.         self.host = host

  138.         self.ui = ui_carla_host.Ui_CarlaHostW()

  139.         self.ui.setupUi(self)

  140.         gCarla.gui = self

  141. 

  142.         if False:

  143.             # kdevelop likes this :)

  144.             host = CarlaHostNull()

  145.             self.host = host

  146. 

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

  148. 

  149.         self.fParentOrSelf = parent or self

  150. 

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

  152.         # Internal stuff

  153. 

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

  155.         self.fIdleTimerFast = 0

  156.         self.fIdleTimerSlow = 0

  157. 

  158.         self.fLadspaRdfNeedsUpdate = True

  159.         self.fLadspaRdfList = []

  160. 

  161.         self.fPluginCount = 0

  162.         self.fPluginList  = []

  163. 

  164.         self.fPluginDatabaseDialog = None

  165.         self.fFavoritePlugins = []

  166. 

  167.         self.fProjectFilename  = ""

  168.         self.fIsProjectLoading = False

  169.         self.fCurrentlyRemovingAllPlugins = False

  170.         self.fHasLoadedLv2Plugins = False

  171. 

  172.         self.fLastTransportBPM   = 0.0

  173.         self.fLastTransportFrame = 0

  174.         self.fLastTransportState = False

  175.         self.fBufferSize         = 0

  176.         self.fSampleRate         = 0.0

  177.         self.fOscAddressTCP      = ""

  178.         self.fOscAddressUDP      = ""

  179. 

  180.         if MACOS:

  181.             self.fMacClosingHelper = True

  182. 

  183.         # CancelableActionCallback Box

  184.         self.fCancelableActionBox = None

  185. 

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

  187.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  188. 

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

  190.         self.fFirstEngineInit = True

  191. 

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

  193.         self.fSavedSettings = {}

  194. 

  195.         # true if NSM server handles our window management

  196.         self.fWindowCloseHideGui = False

  197. 

  198.         if host.isControl:

  199.             self.fClientName         = "Carla-Control"

  200.             self.fSessionManagerName = "Control"

  201.         elif host.isPlugin:

  202.             self.fClientName         = "Carla-Plugin"

  203.             self.fSessionManagerName = "Plugin"

  204.         elif LADISH_APP_NAME:

  205.             self.fClientName         = LADISH_APP_NAME

  206.             self.fSessionManagerName = "LADISH"

  207.         elif NSM_URL and host.nsmOK:

  208.             self.fClientName         = "Carla.tmp"

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

  210.             self.fWindowCloseHideGui = True

  211.         else:

  212.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  213.             self.fSessionManagerName = ""

  214. 

  215.         # ----------------------------------------------------------------------------------------------------

  216.         # Internal stuff (patchbay)

  217. 

  218.         self.fPeaksCleared = True

  219. 

  220.         self.fExternalPatchbay = False

  221.         self.fSelectedPlugins  = []

  222. 

  223.         self.fCanvasWidth  = 0

  224.         self.fCanvasHeight = 0

  225.         self.fMiniCanvasUpdateTimeout = 0

  226. 

  227.         self.fWithCanvas = withCanvas

  228. 

  229.         # ----------------------------------------------------------------------------------------------------

  230.         # Internal stuff (logs)

  231. 

  232.         self.autoscrollOnNewLog = True

  233.         self.lastLogSliderPos = 0

  234. 

  235.         # ----------------------------------------------------------------------------------------------------

  236.         # Set up GUI (engine stopped)

  237. 

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

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

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

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

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

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

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

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

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

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

  248. 

  249.             if self.host.isControl:

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

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

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

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

  254.             else:

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

  256. 

  257.                 if not withCanvas:

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

  259. 

  260.         else:

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

  262. 

  263.             if WINDOWS:

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

  265. 

  266.         if self.host.isControl:

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

  268.         else:

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

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

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

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

  273. 

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

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

  276. 

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

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

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

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

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

  282. 

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

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

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

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

  287. 

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

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

  290. 

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

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

  293. 

  294.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  312.             self.ui.tw_miniCanvas.hide()

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

  314.             if WINDOWS:

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

  316. 

  317.         # ----------------------------------------------------------------------------------------------------

  318.         # Set up GUI (disk)

  319. 

  320.         exts = gCarla.utils.get_supported_file_extensions()

  321. 

  322.         self.fDirModel = QFileSystemModel(self)

  323.         self.fDirModel.setRootPath(HOME)

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

  325. 

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

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

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

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

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

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

  332. 

  333.         # ----------------------------------------------------------------------------------------------------

  334.         # Set up GUI (transport)

  335. 

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

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

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

  339. 

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

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

  342. 

  343.         if minLabelWidth < labelTimeWidth:

  344.             minLabelWidth = labelTimeWidth

  345.         if minLabelWidth < labelBBTWidth:

  346.             minLabelWidth = labelBBTWidth

  347. 

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

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

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

  351. 

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

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

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

  355. 

  356.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  369. 

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

  371. 

  372.         # ----------------------------------------------------------------------------------------------------

  373.         # Set up GUI (rack)

  374. 

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

  376. 

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

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

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

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

  381. 

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

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

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

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

  386. 

  387.         self.updateStyle()

  388. 

  389.         self.ui.rack.setStyleSheet("""

  390.           CarlaRackList#CarlaRackList {

  391.             background-color: black;

  392.           }

  393.         """)

  394. 

  395.         # ----------------------------------------------------------------------------------------------------

  396.         # Set up GUI (patchbay)

  397. 

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

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

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

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

  402. 

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

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

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

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

  407. 

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

  409.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  411. 

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

  413. 

  414.         self.ui.miniCanvasPreview.setRealParent(self)

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

  416. 

  417.         # ----------------------------------------------------------------------------------------------------

  418.         # Set up GUI (logs)

  419. 

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

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

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

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

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

  425. 

  426.         # ----------------------------------------------------------------------------------------------------

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

  428. 

  429.         if MACOS:

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

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

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

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

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

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

  436. 

  437.         # ----------------------------------------------------------------------------------------------------

  438.         # Load Settings

  439. 

  440.         self.loadSettings(True)

  441. 

  442.         # ----------------------------------------------------------------------------------------------------

  443.         # Set-up Canvas

  444. 

  445.         if withCanvas:

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

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

  448. 

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

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

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

  452. 

  453.             self.setupCanvas()

  454. 

  455.         # ----------------------------------------------------------------------------------------------------

  456.         # Set-up Icons

  457. 

  458.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  488. 

  489.         # ----------------------------------------------------------------------------------------------------

  490.         # Connect actions to functions

  491. 

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

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

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

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

  496. 

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

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

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

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

  501. 

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

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

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

  505. 

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

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

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

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

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

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

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

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

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

  515. 

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

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

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

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

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

  521. 

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

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

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

  525. 

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

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

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

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

  530. 

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

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

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

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

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

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

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

  538. 

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

  540. 

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

  542. 

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

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

  545. 

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

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

  548. 

  549.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  569. 

  570.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  571.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  572. 

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

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

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

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

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

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

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

  580. 

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

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

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

  584. 

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

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

  587. 

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

  589. 

  590.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

  604. 

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

  606. 

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

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

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

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

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

  612. 

  613.         # ----------------------------------------------------------------------------------------------------

  614.         # Final setup

  615. 

  616.         self.ui.text_logs.clear()

  617.         self.slot_logButtonsState(False)

  618.         self.setProperWindowTitle()

  619. 

  620.         # Disable non-supported features

  621.         features = gCarla.utils.get_supported_features()

  622. 

  623.         if "link" not in features:

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

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

  626. 

  627.         if "juce" not in features:

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

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

  630. 

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

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

  633.             self.startTimers()

  634. 

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

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

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

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

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

  640. 

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

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

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

  644. 

  645.         # Load initial project file if set

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

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

  648. 

  649.             if projectFile:

  650.                 self.loadProjectLater(projectFile)

  651. 

  652.         # For NSM we wait for the open message

  653.         if NSM_URL and host.nsmOK:

  654.             host.nsm_ready(NSM_CALLBACK_INIT)

  655.             return

  656. 

  657.         if not host.isControl:

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

  659. 

  660.     # --------------------------------------------------------------------------------------------------------

  661.     # Manage visibility state, needed for NSM

  662. 

  663.     def hideForNSM(self):

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

  665.             if pitem is None:

  666.                 continue

  667.             pitem.getWidget().hideCustomUI()

  668.         self.hide()

  669. 

  670.     def showIfNeeded(self):

  671.         if self.host.nsmOK:

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

  673.             QApplication.instance().setQuitOnLastWindowClosed(False)

  674.         else:

  675.             self.show()

  676. 

  677.     # --------------------------------------------------------------------------------------------------------

  678.     # Setup

  679. 

  680.     def compactPlugin(self, pluginId):

  681.         if pluginId > self.fPluginCount:

  682.             return

  683. 

  684.         pitem = self.fPluginList[pluginId]

  685. 

  686.         if pitem is None:

  687.             return

  688. 

  689.         pitem.recreateWidget(True)

  690. 

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

  692.         if pluginId > self.fPluginCount:

  693.             return

  694. 

  695.         pitem = self.fPluginList[pluginId]

  696. 

  697.         if pitem is None:

  698.             return

  699. 

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

  701.         pitem.recreateWidget(newColor = color)

  702. 

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

  704.         if pluginId > self.fPluginCount:

  705.             return

  706. 

  707.         pitem = self.fPluginList[pluginId]

  708. 

  709.         if pitem is None:

  710.             return

  711. 

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

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

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

  715.         else:

  716.             pitem.recreateWidget(newSkin = skin)

  717. 

  718.     def findPluginInPatchbay(self, pluginId):

  719.         if pluginId > self.fPluginCount:

  720.             return

  721. 

  722.         if self.fExternalPatchbay:

  723.             self.slot_canvasShowInternal()

  724. 

  725.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  727.             if not patchcanvas.focusGroupUsingGroupName(name):

  728.                 return

  729. 

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

  731. 

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

  733.         if pluginIdA == pluginIdB:

  734.             return

  735.         if pluginIdA < 0 or pluginIdB < 0:

  736.             return

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

  738.             return

  739. 

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

  741. 

  742.         itemA = self.fPluginList[pluginIdA]

  743.         compactA = itemA.isCompacted()

  744.         guiShownA = itemA.isGuiShown()

  745. 

  746.         itemB = self.fPluginList[pluginIdB]

  747.         compactB = itemB.isCompacted()

  748.         guiShownB = itemB.isGuiShown()

  749. 

  750.         itemA.setPluginId(pluginIdA)

  751.         itemA.recreateWidget2(compactB, guiShownB)

  752. 

  753.         itemB.setPluginId(pluginIdB)

  754.         itemB.recreateWidget2(compactA, guiShownA)

  755. 

  756.         if self.fWithCanvas:

  757.             self.slot_canvasRefresh()

  758. 

  759.     def setLoadRDFsNeeded(self):

  760.         self.fLadspaRdfNeedsUpdate = True

  761. 

  762.     def setProperWindowTitle(self):

  763.         title = self.fClientName

  764. 

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

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

  767.         if self.fSessionManagerName:

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

  769. 

  770.         self.setWindowTitle(title)

  771. 

  772.     def updateBufferSize(self, newBufferSize):

  773.         if self.fBufferSize == newBufferSize:

  774.             return

  775.         self.fBufferSize = newBufferSize

  776.         self.ui.cb_buffer_size.clear()

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

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

  779. 

  780.     def updateSampleRate(self, newSampleRate):

  781.         if self.fSampleRate == newSampleRate:

  782.             return

  783.         self.fSampleRate = newSampleRate

  784.         self.ui.cb_sample_rate.clear()

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

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

  787.         self.refreshTransport(True)

  788. 

  789.     # --------------------------------------------------------------------------------------------------------

  790.     # Files

  791. 

  792.     def loadProjectNow(self):

  793.         if not self.fProjectFilename:

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

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

  796.             return

  797. 

  798.         self.projectLoadingStarted()

  799.         self.fIsProjectLoading = True

  800. 

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

  802.             self.fIsProjectLoading = False

  803.             self.projectLoadingFinished(True)

  804. 

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

  806.                              self.host.get_last_error(),

  807.                              QMessageBox.Ok, QMessageBox.Ok)

  808. 

  809.     def loadProjectLater(self, filename):

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

  811.         self.setProperWindowTitle()

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

  813. 

  814.     def saveProjectNow(self):

  815.         if not self.fProjectFilename:

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

  817. 

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

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

  820.                              self.host.get_last_error(),

  821.                              QMessageBox.Ok, QMessageBox.Ok)

  822.             return

  823. 

  824.     def projectLoadingStarted(self):

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

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

  827. 

  828.     def projectLoadingFinished(self, refreshCanvas):

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

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

  831. 

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

  833.             return

  834. 

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

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

  837. 

  838.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

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

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

  841.             return False

  842. 

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

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

  845.                 return False

  846. 

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

  848.             try:

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

  850.             except:

  851.                 return False

  852. 

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

  854.         patchcanvas.restoreGroupPositions(canvasdata)

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

  856.         return True

  857. 

  858.     # --------------------------------------------------------------------------------------------------------

  859.     # Files (menu actions)

  860. 

  861.     @pyqtSlot()

  862.     def slot_fileNew(self):

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

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

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

  866.             return

  867. 

  868.         self.pluginRemoveAll()

  869.         self.fProjectFilename = ""

  870.         self.setProperWindowTitle()

  871.         self.host.clear_project_filename()

  872. 

  873.     @pyqtSlot()

  874.     def slot_fileOpen(self):

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

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

  877. 

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

  879.         if not filename:

  880.             return

  881. 

  882.         newFile = True

  883. 

  884.         if self.fPluginCount > 0:

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

  886.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  888. 

  889.         if newFile:

  890.             self.pluginRemoveAll()

  891.             self.fProjectFilename = filename

  892.             self.setProperWindowTitle()

  893.             self.loadProjectNow()

  894.         else:

  895.             filenameOld = self.fProjectFilename

  896.             self.fProjectFilename = filename

  897.             self.loadProjectNow()

  898.             self.fProjectFilename = filenameOld

  899. 

  900.     @pyqtSlot()

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

  902.         if self.fProjectFilename and not saveAs:

  903.             return self.saveProjectNow()

  904. 

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

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

  907. 

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

  909.         if not filename:

  910.             return

  911. 

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

  913.             filename += ".carxp"

  914. 

  915.         if self.fProjectFilename != filename:

  916.             self.fProjectFilename = filename

  917.             self.setProperWindowTitle()

  918. 

  919.         self.saveProjectNow()

  920. 

  921.     @pyqtSlot()

  922.     def slot_fileSaveAs(self):

  923.         self.slot_fileSave(True)

  924. 

  925.     @pyqtSlot()

  926.     def slot_loadProjectNow(self):

  927.         self.loadProjectNow()

  928. 

  929.     # --------------------------------------------------------------------------------------------------------

  930.     # Engine (menu actions)

  931. 

  932.     @pyqtSlot()

  933.     def slot_engineStart(self):

  934.         audioDriver = setEngineSettings(self.host)

  935.         firstInit   = self.fFirstEngineInit

  936. 

  937.         self.fFirstEngineInit = False

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

  939. 

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

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

  942.                 settings = QSafeSettings()

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

  944.                 del settings

  945.                 if lastBpm >= 20.0:

  946.                     self.host.transport_bpm(lastBpm)

  947.             return

  948. 

  949.         elif firstInit:

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

  951.             return

  952. 

  953.         audioError = self.host.get_last_error()

  954. 

  955.         if audioError:

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

  957.         else:

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

  959. 

  960.     @pyqtSlot()

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

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

  963. 

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

  965.             self.engineStopFinal()

  966.             return True

  967. 

  968.         if not forced:

  969.             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"

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

  971.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  972.             if ask != QMessageBox.Yes:

  973.                 return False

  974. 

  975.         return self.slot_engineStopTryAgain()

  976. 

  977.     @pyqtSlot()

  978.     def slot_engineConfig(self):

  979.         engineRunning = self.host.is_engine_running()

  980. 

  981.         if engineRunning:

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

  983. 

  984.         else:

  985.             if self.host.isPlugin:

  986.                 driverName = "Plugin"

  987.                 driverIndex = 0

  988.             elif self.host.audioDriverForced:

  989.                 driverName = self.host.audioDriverForced

  990.                 driverIndex = 0

  991.             else:

  992.                 settings = QSafeSettings()

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

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

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

  996.                         driverIndex = i

  997.                         break

  998.                 else:

  999.                     driverIndex = -1

  1000.                 del settings

  1001.             dialog = DriverSettingsW(self.fParentOrSelf, self.host, driverIndex, driverName)

  1002.             dialog.ui.ico_restart.hide()

  1003.             dialog.ui.label_restart.hide()

  1004.             dialog.adjustSize()

  1005. 

  1006.         if not dialog.exec_():

  1007.             return

  1008. 

  1009.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  1010. 

  1011.         if engineRunning:

  1012.             self.host.set_engine_buffer_size_and_sample_rate(bufferSize, sampleRate)

  1013.         else:

  1014.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  1015.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  1016.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  1017. 

  1018.     @pyqtSlot()

  1019.     def slot_engineStopTryAgain(self):

  1020.         if self.host.is_engine_running() and not self.host.set_engine_about_to_close():

  1021.             QTimer.singleShot(0, self.slot_engineStopTryAgain)

  1022.             return False

  1023. 

  1024.         self.engineStopFinal()

  1025.         return True

  1026. 

  1027.     def engineStopFinal(self):

  1028.         patchcanvas.handleAllPluginsRemoved()

  1029.         self.killTimers()

  1030. 

  1031.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1032.             self.removeAllPlugins()

  1033.         else:

  1034.             self.fProjectFilename = ""

  1035.             self.setProperWindowTitle()

  1036.             if self.fPluginCount != 0:

  1037.                 self.fCurrentlyRemovingAllPlugins = True

  1038.                 self.projectLoadingStarted()

  1039. 

  1040.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1041.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1042.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1043. 

  1044.         if not self.host.engine_close():

  1045.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1046.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1047. 

  1048.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1049.             self.close()

  1050.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1051.             self.slot_engineStart()

  1052.             self.loadProjectNow()

  1053.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1054. 

  1055.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1056. 

  1057.     # --------------------------------------------------------------------------------------------------------

  1058.     # Engine (host callbacks)

  1059. 

  1060.     @pyqtSlot(int, int, int, int, float, str)

  1061.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

  1062.         self.ui.menu_PluginMacros.setEnabled(True)

  1063.         self.ui.menu_Canvas.setEnabled(True)

  1064.         self.ui.w_transport.setEnabled(True)

  1065. 

  1066.         self.ui.act_canvas_show_internal.blockSignals(True)

  1067.         self.ui.act_canvas_show_external.blockSignals(True)

  1068. 

  1069.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1070.             self.ui.act_canvas_show_internal.setChecked(True)

  1071.             self.ui.act_canvas_show_internal.setVisible(True)

  1072.             self.ui.act_canvas_show_external.setChecked(False)

  1073.             self.ui.act_canvas_show_external.setVisible(True)

  1074.             self.fExternalPatchbay = False

  1075.         else:

  1076.             self.ui.act_canvas_show_internal.setChecked(False)

  1077.             self.ui.act_canvas_show_internal.setVisible(False)

  1078.             self.ui.act_canvas_show_external.setChecked(True)

  1079.             self.ui.act_canvas_show_external.setVisible(False)

  1080.             self.fExternalPatchbay = not self.host.isPlugin

  1081. 

  1082.         self.ui.act_canvas_show_internal.blockSignals(False)

  1083.         self.ui.act_canvas_show_external.blockSignals(False)

  1084. 

  1085.         if not (self.host.isControl or self.host.isPlugin):

  1086.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1087.             self.ui.act_file_save.setEnabled(canSave)

  1088.             self.ui.act_engine_start.setEnabled(False)

  1089.             self.ui.act_engine_stop.setEnabled(True)

  1090. 

  1091.         if not self.host.isPlugin:

  1092.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1093. 

  1094.         if self.host.isPlugin or not self.fSessionManagerName:

  1095.             self.ui.act_file_open.setEnabled(True)

  1096.             self.ui.act_file_save_as.setEnabled(True)

  1097. 

  1098.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1099.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1100. 

  1101.         if self.ui.cb_transport_link.isEnabled():

  1102.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1103. 

  1104.         self.updateBufferSize(bufferSize)

  1105.         self.updateSampleRate(int(sampleRate))

  1106.         self.refreshRuntimeInfo(0.0, 0)

  1107.         self.startTimers()

  1108. 

  1109.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1110.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1111.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1112.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1113.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1114. 

  1115.     @pyqtSlot()

  1116.     def slot_handleEngineStoppedCallback(self):

  1117.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1118. 

  1119.         if self.fWithCanvas:

  1120.             patchcanvas.clear()

  1121. 

  1122.         self.killTimers()

  1123. 

  1124.         # just in case

  1125.         self.removeAllPlugins()

  1126.         self.refreshRuntimeInfo(0.0, 0)

  1127. 

  1128.         self.ui.menu_PluginMacros.setEnabled(False)

  1129.         self.ui.menu_Canvas.setEnabled(False)

  1130.         self.ui.w_transport.setEnabled(False)

  1131. 

  1132.         if not (self.host.isControl or self.host.isPlugin):

  1133.             self.ui.act_file_save.setEnabled(False)

  1134.             self.ui.act_engine_start.setEnabled(True)

  1135.             self.ui.act_engine_stop.setEnabled(False)

  1136. 

  1137.         if self.host.isPlugin or not self.fSessionManagerName:

  1138.             self.ui.act_file_open.setEnabled(False)

  1139.             self.ui.act_file_save_as.setEnabled(False)

  1140. 

  1141.     @pyqtSlot(int, str)

  1142.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1143.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1144. 

  1145.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1146.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1147. 

  1148.     @pyqtSlot(int)

  1149.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1150.         self.updateBufferSize(newBufferSize)

  1151. 

  1152.     @pyqtSlot(float)

  1153.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1154.         self.updateSampleRate(int(newSampleRate))

  1155. 

  1156.     @pyqtSlot(int, bool, str)

  1157.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1158.         if self.fCancelableActionBox is not None:

  1159.             self.fCancelableActionBox.close()

  1160. 

  1161.         if started:

  1162.             self.fCancelableActionBox = QMessageBox(self)

  1163.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1164.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1165.             self.fCancelableActionBox.setText(action)

  1166.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1167.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1168.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1169.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1170.             self.fCancelableActionBox.show()

  1171. 

  1172.         else:

  1173.             self.fCancelableActionBox = None

  1174. 

  1175.     @pyqtSlot()

  1176.     def slot_canlableActionBoxClicked(self):

  1177.         self.host.cancel_engine_action()

  1178. 

  1179.     @pyqtSlot()

  1180.     def slot_handleProjectLoadFinishedCallback(self):

  1181.         self.fIsProjectLoading = False

  1182.         self.projectLoadingFinished(False)

  1183. 

  1184.     # --------------------------------------------------------------------------------------------------------

  1185.     # Plugins

  1186. 

  1187.     def removeAllPlugins(self):

  1188.         self.ui.act_plugin_remove_all.setEnabled(False)

  1189.         patchcanvas.handleAllPluginsRemoved()

  1190. 

  1191.         while self.ui.listWidget.takeItem(0):

  1192.             pass

  1193. 

  1194.         self.clearSideStuff()

  1195. 

  1196.         for pitem in self.fPluginList:

  1197.             if pitem is None:

  1198.                 continue

  1199. 

  1200.             pitem.close()

  1201.             del pitem

  1202. 

  1203.         self.fPluginCount = 0

  1204.         self.fPluginList  = []

  1205. 

  1206.     # --------------------------------------------------------------------------------------------------------

  1207.     # Plugins (menu actions)

  1208. 

  1209.     def showAddPluginDialog(self):

  1210.         if self.fPluginDatabaseDialog is None:

  1211.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host,

  1212.                                                          self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1213.         dialog = self.fPluginDatabaseDialog

  1214.         dialog.hasLoadedLv2Plugins = self.fHasLoadedLv2Plugins

  1215. 

  1216.         ret = dialog.exec_()

  1217. 

  1218.         if dialog.fFavoritePluginsChanged:

  1219.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1220. 

  1221.         if not ret:

  1222.             return

  1223. 

  1224.         if not self.host.is_engine_running():

  1225.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1226.             return

  1227. 

  1228.         btype    = dialog.fRetPlugin['build']

  1229.         ptype    = dialog.fRetPlugin['type']

  1230.         filename = dialog.fRetPlugin['filename']

  1231.         label    = dialog.fRetPlugin['label']

  1232.         uniqueId = dialog.fRetPlugin['uniqueId']

  1233.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1234. 

  1235.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1236. 

  1237.     def showAddJackAppDialog(self):

  1238.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1239. 

  1240.         if not dialog.exec_():

  1241.             return

  1242. 

  1243.         if not self.host.is_engine_running():

  1244.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1245.             return

  1246. 

  1247.         return dialog.getCommandAndFlags()

  1248. 

  1249.     @pyqtSlot()

  1250.     def slot_favoritePluginAdd(self):

  1251.         plugin = self.sender().data()

  1252. 

  1253.         if plugin is None:

  1254.             return

  1255. 

  1256.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1257.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1258.             # remove plugin from favorites

  1259.             try:

  1260.                 self.fFavoritePlugins.remove(plugin)

  1261.             except ValueError:

  1262.                 pass

  1263.             else:

  1264.                 settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1265.                 settingsDBf.setValue("PluginDatabase/Favorites", self.fFavoritePlugins)

  1266.                 settingsDBf.sync()

  1267.                 del settingsDBf

  1268. 

  1269.             CustomMessageBox(self,

  1270.                              QMessageBox.Critical,

  1271.                              self.tr("Error"),

  1272.                              self.tr("Failed to load plugin"),

  1273.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1274. 

  1275.     @pyqtSlot()

  1276.     def slot_showPluginActionsMenu(self):

  1277.         menu = QMenu(self)

  1278. 

  1279.         menu.addSection("Plugins")

  1280.         menu.addAction(self.ui.act_plugin_add)

  1281. 

  1282.         if len(self.fFavoritePlugins) != 0:

  1283.             fmenu = QMenu("Add from favorites", self)

  1284.             for p in self.fFavoritePlugins:

  1285.                 act = fmenu.addAction(p['name'])

  1286.                 act.setData(p)

  1287.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1288.             menu.addMenu(fmenu)

  1289. 

  1290.         menu.addAction(self.ui.act_plugin_remove_all)

  1291. 

  1292.         menu.addSection("All plugins (macros)")

  1293.         menu.addAction(self.ui.act_plugins_enable)

  1294.         menu.addAction(self.ui.act_plugins_disable)

  1295.         menu.addSeparator()

  1296.         menu.addAction(self.ui.act_plugins_volume100)

  1297.         menu.addAction(self.ui.act_plugins_mute)

  1298.         menu.addSeparator()

  1299.         menu.addAction(self.ui.act_plugins_wet100)

  1300.         menu.addAction(self.ui.act_plugins_bypass)

  1301.         menu.addSeparator()

  1302.         menu.addAction(self.ui.act_plugins_center)

  1303.         menu.addSeparator()

  1304.         menu.addAction(self.ui.act_plugins_compact)

  1305.         menu.addAction(self.ui.act_plugins_expand)

  1306. 

  1307.         menu.exec_(QCursor.pos())

  1308. 

  1309.     @pyqtSlot()

  1310.     def slot_pluginAdd(self):

  1311.         data = self.showAddPluginDialog()

  1312. 

  1313.         if data is None:

  1314.             return

  1315. 

  1316.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1317. 

  1318.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1319.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1320.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1321. 

  1322.     @pyqtSlot()

  1323.     def slot_confirmRemoveAll(self):

  1324.         if self.fPluginCount == 0:

  1325.             return

  1326. 

  1327.         if QMessageBox.question(self, self.tr("Remove All"),

  1328.                                       self.tr("Are you sure you want to remove all plugins?"),

  1329.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1330.             return

  1331. 

  1332.         self.pluginRemoveAll()

  1333. 

  1334.     def pluginRemoveAll(self):

  1335.         if self.fPluginCount == 0:

  1336.             return

  1337. 

  1338.         self.fCurrentlyRemovingAllPlugins = True

  1339.         self.projectLoadingStarted()

  1340. 

  1341.         if not self.host.remove_all_plugins():

  1342.             self.projectLoadingFinished(True)

  1343.             self.fCurrentlyRemovingAllPlugins = False

  1344.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1345.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1346. 

  1347.     @pyqtSlot()

  1348.     def slot_jackAppAdd(self):

  1349.         data = self.showAddJackAppDialog()

  1350. 

  1351.         if data is None:

  1352.             return

  1353. 

  1354.         filename, name, label = data

  1355. 

  1356.         if not filename:

  1357.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1358.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1359.             return

  1360. 

  1361.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1362.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1363.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1364. 

  1365.     # --------------------------------------------------------------------------------------------------------

  1366.     # Plugins (macros)

  1367. 

  1368.     @pyqtSlot()

  1369.     def slot_pluginsEnable(self):

  1370.         if not self.host.is_engine_running():

  1371.             return

  1372. 

  1373.         for pitem in self.fPluginList:

  1374.             if pitem is None:

  1375.                 break

  1376. 

  1377.             pitem.getWidget().setActive(True, True, True)

  1378. 

  1379.     @pyqtSlot()

  1380.     def slot_pluginsDisable(self):

  1381.         if not self.host.is_engine_running():

  1382.             return

  1383. 

  1384.         for pitem in self.fPluginList:

  1385.             if pitem is None:

  1386.                 break

  1387. 

  1388.             pitem.getWidget().setActive(False, True, True)

  1389. 

  1390.     @pyqtSlot()

  1391.     def slot_pluginsVolume100(self):

  1392.         if not self.host.is_engine_running():

  1393.             return

  1394. 

  1395.         for pitem in self.fPluginList:

  1396.             if pitem is None:

  1397.                 break

  1398. 

  1399.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1400. 

  1401.     @pyqtSlot()

  1402.     def slot_pluginsMute(self):

  1403.         if not self.host.is_engine_running():

  1404.             return

  1405. 

  1406.         for pitem in self.fPluginList:

  1407.             if pitem is None:

  1408.                 break

  1409. 

  1410.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1411. 

  1412.     @pyqtSlot()

  1413.     def slot_pluginsWet100(self):

  1414.         if not self.host.is_engine_running():

  1415.             return

  1416. 

  1417.         for pitem in self.fPluginList:

  1418.             if pitem is None:

  1419.                 break

  1420. 

  1421.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1422. 

  1423.     @pyqtSlot()

  1424.     def slot_pluginsBypass(self):

  1425.         if not self.host.is_engine_running():

  1426.             return

  1427. 

  1428.         for pitem in self.fPluginList:

  1429.             if pitem is None:

  1430.                 break

  1431. 

  1432.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1433. 

  1434.     @pyqtSlot()

  1435.     def slot_pluginsCenter(self):

  1436.         if not self.host.is_engine_running():

  1437.             return

  1438. 

  1439.         for pitem in self.fPluginList:

  1440.             if pitem is None:

  1441.                 break

  1442. 

  1443.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1444.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1445.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1446. 

  1447.     @pyqtSlot()

  1448.     def slot_pluginsCompact(self):

  1449.         for pitem in self.fPluginList:

  1450.             if pitem is None:

  1451.                 break

  1452.             pitem.compact()

  1453. 

  1454.     @pyqtSlot()

  1455.     def slot_pluginsExpand(self):

  1456.         for pitem in self.fPluginList:

  1457.             if pitem is None:

  1458.                 break

  1459.             pitem.expand()

  1460. 

  1461.     # --------------------------------------------------------------------------------------------------------

  1462.     # Plugins (host callbacks)

  1463. 

  1464.     @pyqtSlot(int, int, str)

  1465.     def slot_handlePluginAddedCallback(self, pluginId, pluginType, pluginName):

  1466.         if pluginId != self.fPluginCount:

  1467.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1468.             pitem = self.getPluginItem(pluginId)

  1469.             pitem.recreateWidget()

  1470.             return

  1471. 

  1472.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN])

  1473.         self.fPluginList.append(pitem)

  1474.         self.fPluginCount += 1

  1475. 

  1476.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1477. 

  1478.         if pluginType == PLUGIN_LV2:

  1479.             self.fHasLoadedLv2Plugins = True

  1480. 

  1481.     @pyqtSlot(int)

  1482.     def slot_handlePluginRemovedCallback(self, pluginId):

  1483.         if self.fWithCanvas:

  1484.             patchcanvas.handlePluginRemoved(pluginId)

  1485. 

  1486.         if pluginId in self.fSelectedPlugins:

  1487.             self.clearSideStuff()

  1488. 

  1489.         if self.fPluginCount == 0:

  1490.             return

  1491. 

  1492.         pitem = self.getPluginItem(pluginId)

  1493. 

  1494.         self.fPluginCount -= 1

  1495.         self.fPluginList.pop(pluginId)

  1496.         self.ui.listWidget.takeItem(pluginId)

  1497. 

  1498.         if pitem is not None:

  1499.             pitem.close()

  1500.             del pitem

  1501. 

  1502.         if self.fPluginCount == 0:

  1503.             self.ui.act_plugin_remove_all.setEnabled(False)

  1504.             if self.fCurrentlyRemovingAllPlugins:

  1505.                 self.fCurrentlyRemovingAllPlugins = False

  1506.                 self.projectLoadingFinished(False)

  1507.             return

  1508. 

  1509.         # push all plugins 1 slot back

  1510.         for i in range(pluginId, self.fPluginCount):

  1511.             pitem = self.fPluginList[i]

  1512.             pitem.setPluginId(i)

  1513. 

  1514.         self.ui.act_plugin_remove_all.setEnabled(True)

  1515. 

  1516.     # --------------------------------------------------------------------------------------------------------

  1517.     # Canvas

  1518. 

  1519.     def clearSideStuff(self):

  1520.         if self.fWithCanvas:

  1521.             self.scene.clearSelection()

  1522. 

  1523.         self.fSelectedPlugins = []

  1524. 

  1525.         self.ui.keyboard.allNotesOff(False)

  1526.         self.ui.scrollArea.setEnabled(False)

  1527. 

  1528.         self.fPeaksCleared = True

  1529.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1530.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1531.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1532.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1533. 

  1534.     def setupCanvas(self):

  1535.         pOptions = patchcanvas.options_t()

  1536.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1537.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1538.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1539.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1540.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1541.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1542. 

  1543.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1544.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1545.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1546.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1547.         else:

  1548.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1549. 

  1550.         pFeatures = patchcanvas.features_t()

  1551.         pFeatures.group_info   = False

  1552.         pFeatures.group_rename = False

  1553.         pFeatures.port_info    = False

  1554.         pFeatures.port_rename  = False

  1555.         pFeatures.handle_group_pos = False

  1556. 

  1557.         patchcanvas.setOptions(pOptions)

  1558.         patchcanvas.setFeatures(pFeatures)

  1559.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1560. 

  1561.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1562. 

  1563.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1564.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1565.             self.fCanvasHeight = int(tryCanvasSize[1])

  1566.         else:

  1567.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1568.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1569. 

  1570.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1571.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1572.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1573. 

  1574.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1575.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1576. 

  1577.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1578.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1579. 

  1580.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1581.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1582.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1583. 

  1584.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1585.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1586. 

  1587.         else:

  1588.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1589. 

  1590.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1591.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1592.         else:

  1593.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1594. 

  1595.     def updateCanvasInitialPos(self):

  1596.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1597.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1598.         patchcanvas.setInitialPos(x, y)

  1599. 

  1600.     def updateMiniCanvasLater(self):

  1601.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1602. 

  1603.     # --------------------------------------------------------------------------------------------------------

  1604.     # Canvas (menu actions)

  1605. 

  1606.     @pyqtSlot()

  1607.     def slot_canvasShowInternal(self):

  1608.         self.fExternalPatchbay = False

  1609.         self.ui.act_canvas_show_internal.blockSignals(True)

  1610.         self.ui.act_canvas_show_external.blockSignals(True)

  1611.         self.ui.act_canvas_show_internal.setChecked(True)

  1612.         self.ui.act_canvas_show_external.setChecked(False)

  1613.         self.ui.act_canvas_show_internal.blockSignals(False)

  1614.         self.ui.act_canvas_show_external.blockSignals(False)

  1615.         self.slot_canvasRefresh()

  1616. 

  1617.     @pyqtSlot()

  1618.     def slot_canvasShowExternal(self):

  1619.         self.fExternalPatchbay = True

  1620.         self.ui.act_canvas_show_internal.blockSignals(True)

  1621.         self.ui.act_canvas_show_external.blockSignals(True)

  1622.         self.ui.act_canvas_show_internal.setChecked(False)

  1623.         self.ui.act_canvas_show_external.setChecked(True)

  1624.         self.ui.act_canvas_show_internal.blockSignals(False)

  1625.         self.ui.act_canvas_show_external.blockSignals(False)

  1626.         self.slot_canvasRefresh()

  1627. 

  1628.     @pyqtSlot()

  1629.     def slot_canvasArrange(self):

  1630.         patchcanvas.arrange()

  1631. 

  1632.     @pyqtSlot()

  1633.     def slot_canvasRefresh(self):

  1634.         patchcanvas.clear()

  1635. 

  1636.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1637.             return

  1638. 

  1639.         if self.host.is_engine_running():

  1640.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1641. 

  1642.         self.updateMiniCanvasLater()

  1643. 

  1644.     @pyqtSlot()

  1645.     def slot_canvasZoomFit(self):

  1646.         self.scene.zoom_fit()

  1647. 

  1648.     @pyqtSlot()

  1649.     def slot_canvasZoomIn(self):

  1650.         self.scene.zoom_in()

  1651. 

  1652.     @pyqtSlot()

  1653.     def slot_canvasZoomOut(self):

  1654.         self.scene.zoom_out()

  1655. 

  1656.     @pyqtSlot()

  1657.     def slot_canvasZoomReset(self):

  1658.         self.scene.zoom_reset()

  1659. 

  1660.     def _canvasImageRender(self, zoom = 1.0):

  1661.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1662.         painter = QPainter(image)

  1663.         painter.save()

  1664.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1665.         self.scene.clearSelection()

  1666.         self.scene.render(painter)

  1667.         painter.restore()

  1668.         del painter

  1669.         return image

  1670. 

  1671.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1672.         iw.setFormat(imgFormat)

  1673.         iw.setCompression(-1)

  1674.         if QT_VERSION >= 0x50500:

  1675.             iw.setOptimizedWrite(True)

  1676.         iw.write(image)

  1677. 

  1678.     @pyqtSlot()

  1679.     def slot_canvasSaveImage(self):

  1680.         if self.fProjectFilename:

  1681.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1682.         else:

  1683.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1684. 

  1685.         fileDialog = QFileDialog(self)

  1686.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1687.         fileDialog.setDirectory(dir)

  1688.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1689.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1690.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1691.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1692.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1693. 

  1694.         ok = fileDialog.exec_()

  1695. 

  1696.         if not ok:

  1697.             return

  1698. 

  1699.         newPath = fileDialog.selectedFiles()

  1700. 

  1701.         if len(newPath) != 1:

  1702.             return

  1703. 

  1704.         newPath = newPath[0]

  1705. 

  1706.         if QT_VERSION >= 0x50900:

  1707.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1708.                 imgFormat = b"JPG"

  1709.             else:

  1710.                 imgFormat = b"PNG"

  1711.         else:

  1712.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1713.                 imgFormat = b"JPG"

  1714.             else:

  1715.                 imgFormat = b"PNG"

  1716. 

  1717.         sender = self.sender()

  1718.         if sender == self.ui.act_canvas_save_image_2x:

  1719.             zoom = 2.0

  1720.         elif sender == self.ui.act_canvas_save_image_4x:

  1721.             zoom = 4.0

  1722.         else:

  1723.             zoom = 1.0

  1724. 

  1725.         image = self._canvasImageRender(zoom)

  1726.         iw = QImageWriter(newPath)

  1727.         self._canvasImageWrite(iw, imgFormat, image)

  1728. 

  1729.     @pyqtSlot()

  1730.     def slot_canvasCopyToClipboard(self):

  1731.         buffer = QBuffer()

  1732.         buffer.open(QIODevice.WriteOnly)

  1733. 

  1734.         image = self._canvasImageRender()

  1735.         iw = QImageWriter(buffer, b"PNG")

  1736.         self._canvasImageWrite(iw, b"PNG", image)

  1737. 

  1738.         buffer.close()

  1739. 

  1740.         mimeData = QMimeData()

  1741.         mimeData.setData("image/png", buffer.buffer());

  1742. 

  1743.         QApplication.clipboard().setMimeData(mimeData)

  1744. 

  1745.     # --------------------------------------------------------------------------------------------------------

  1746.     # Canvas (canvas callbacks)

  1747. 

  1748.     @pyqtSlot()

  1749.     def slot_canvasSelectionChanged(self):

  1750.         self.updateMiniCanvasLater()

  1751. 

  1752.     @pyqtSlot(float)

  1753.     def slot_canvasScaleChanged(self, scale):

  1754.         self.ui.miniCanvasPreview.setViewScale(scale)

  1755. 

  1756.     @pyqtSlot(list)

  1757.     def slot_canvasPluginSelected(self, pluginList):

  1758.         self.ui.keyboard.allNotesOff(False)

  1759.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1760.         self.fSelectedPlugins = pluginList

  1761. 

  1762.     # --------------------------------------------------------------------------------------------------------

  1763.     # Canvas (host callbacks)

  1764. 

  1765.     @pyqtSlot(int, int, int, str)

  1766.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1767.         pcSplit = patchcanvas.SPLIT_UNDEF

  1768.         pcIcon  = patchcanvas.ICON_APPLICATION

  1769. 

  1770.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1771.             pcIcon = patchcanvas.ICON_PLUGIN

  1772.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1773.             pcIcon = patchcanvas.ICON_HARDWARE

  1774.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1775.             pass

  1776.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1777.             pcIcon = patchcanvas.ICON_DISTRHO

  1778.         elif clientIcon == PATCHBAY_ICON_FILE:

  1779.             pcIcon = patchcanvas.ICON_FILE

  1780. 

  1781.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1782. 

  1783.         self.updateMiniCanvasLater()

  1784. 

  1785.         if pluginId < 0:

  1786.             return

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

  1788.             print("Error mapping plugin to canvas client:", clientName)

  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)

  1802.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1803.         patchcanvas.removeGroup(clientId)

  1804.         self.updateMiniCanvasLater()

  1805. 

  1806.     @pyqtSlot(int, str)

  1807.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1808.         patchcanvas.renameGroup(clientId, newClientName)

  1809.         self.updateMiniCanvasLater()

  1810. 

  1811.     @pyqtSlot(int, int, int)

  1812.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1813.         pcIcon = patchcanvas.ICON_APPLICATION

  1814. 

  1815.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1816.             pcIcon = patchcanvas.ICON_PLUGIN

  1817.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1818.             pcIcon = patchcanvas.ICON_HARDWARE

  1819.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1820.             pass

  1821.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1822.             pcIcon = patchcanvas.ICON_DISTRHO

  1823.         elif clientIcon == PATCHBAY_ICON_FILE:

  1824.             pcIcon = patchcanvas.ICON_FILE

  1825. 

  1826.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1827.         self.updateMiniCanvasLater()

  1828. 

  1829.         if pluginId < 0:

  1830.             return

  1831.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1832.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1833.             return

  1834. 

  1835.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1836.             hasCustomUI = False

  1837.             hasInlineDisplay = False

  1838.         else:

  1839.             hints = self.host.get_plugin_info(pluginId)['hints']

  1840.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1841.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1842. 

  1843.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1844. 

  1845.     @pyqtSlot(int, int, int, int, int)

  1846.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1847.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1848.             patchcanvas.splitGroup(clientId)

  1849.         else:

  1850.             patchcanvas.joinGroup(clientId)

  1851.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1852.         self.updateMiniCanvasLater()

  1853. 

  1854.     @pyqtSlot(int, int, int, int, str)

  1855.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1856.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1857.             portMode = patchcanvas.PORT_MODE_INPUT

  1858.         else:

  1859.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1860. 

  1861.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1862.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1863.             isAlternate = False

  1864.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1865.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1866.             isAlternate = False

  1867.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1868.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1869.             isAlternate = False

  1870.         else:

  1871.             portType    = patchcanvas.PORT_TYPE_NULL

  1872.             isAlternate = False

  1873. 

  1874.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1875.         self.updateMiniCanvasLater()

  1876. 

  1877.     @pyqtSlot(int, int)

  1878.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1879.         patchcanvas.removePort(groupId, portId)

  1880.         self.updateMiniCanvasLater()

  1881. 

  1882.     @pyqtSlot(int, int, int, int, str)

  1883.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1884.         patchcanvas.renamePort(groupId, portId, newPortName)

  1885.         self.updateMiniCanvasLater()

  1886. 

  1887.     @pyqtSlot(int, int, int, str)

  1888.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1889.         # TODO

  1890.         pass

  1891. 

  1892.     @pyqtSlot(int, int)

  1893.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1894.         # TODO

  1895.         pass

  1896. 

  1897.     @pyqtSlot(int, int, int, str)

  1898.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1899.         # TODO

  1900.         pass

  1901. 

  1902.     @pyqtSlot(int, int, int, int, int)

  1903.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1904.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1905.         self.updateMiniCanvasLater()

  1906. 

  1907.     @pyqtSlot(int, int, int)

  1908.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1909.         patchcanvas.disconnectPorts(connectionId)

  1910.         self.updateMiniCanvasLater()

  1911. 

  1912.     # --------------------------------------------------------------------------------------------------------

  1913.     # Settings

  1914. 

  1915.     def saveSettings(self):

  1916.         settings = QSafeSettings()

  1917. 

  1918.         settings.setValue("Geometry", self.saveGeometry())

  1919.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1920.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1921. 

  1922.         diskFolders = []

  1923. 

  1924.         for i in range(self.ui.cb_disk.count()):

  1925.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1926. 

  1927.         settings.setValue("DiskFolders", diskFolders)

  1928.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1929. 

  1930.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1931.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1932.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1933.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1934. 

  1935.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1936.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1937. 

  1938.         return settings

  1939. 

  1940.     def loadSettings(self, firstTime):

  1941.         settings = QSafeSettings()

  1942. 

  1943.         if firstTime:

  1944.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1945.             if not geometry.isNull():

  1946.                 self.restoreGeometry(geometry)

  1947. 

  1948.             showToolbar = settings.value("ShowToolbar", True, bool)

  1949.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1950.             self.ui.toolBar.blockSignals(True)

  1951.             self.ui.toolBar.setEnabled(showToolbar)

  1952.             self.ui.toolBar.setVisible(showToolbar)

  1953.             self.ui.toolBar.blockSignals(False)

  1954. 

  1955.             #if settings.contains("SplitterState"):

  1956.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1957.             #else:

  1958.                 #self.ui.splitter.setSizes([210, 99999])

  1959. 

  1960.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1961.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1962.             self.slot_showSidePanel(showSidePanel)

  1963. 

  1964.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1965. 

  1966.             self.ui.cb_disk.setItemData(0, HOME)

  1967. 

  1968.             for i in range(len(diskFolders)):

  1969.                 if i == 0: continue

  1970.                 folder = diskFolders[i]

  1971.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1972. 

  1973.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1974.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1975. 

  1976.             showMeters = settings.value("ShowMeters", True, bool)

  1977.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1978.             self.ui.peak_in.setVisible(showMeters)

  1979.             self.ui.peak_out.setVisible(showMeters)

  1980. 

  1981.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1982.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1983.             self.ui.scrollArea.setVisible(showKeyboard)

  1984. 

  1985.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1986.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1987. 

  1988.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1989. 

  1990.         # TODO - complete this

  1991.         oldSettings = self.fSavedSettings

  1992. 

  1993.         self.fSavedSettings = {

  1994.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1995.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1996.             CARLA_KEY_MAIN_CLASSIC_SKIN:        settings.value(CARLA_KEY_MAIN_CLASSIC_SKIN,        CARLA_DEFAULT_MAIN_CLASSIC_SKIN,        bool),

  1997.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1998.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  1999.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  2000.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  2001.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  2002.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  2003.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  2004.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  2005.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  2006.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  2007.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  2008.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  2009.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  2010.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  2011.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  2012.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  2013.         }

  2014. 

  2015.         if not self.host.isControl:

  2016.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  2017.         else:

  2018.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  2019. 

  2020.         settings2 = QSafeSettings("falkTX", "Carla2")

  2021. 

  2022.         if self.host.experimental:

  2023.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  2024.             self.ui.act_plugin_add_jack.setVisible(visible)

  2025.         else:

  2026.             self.ui.act_plugin_add_jack.setVisible(False)

  2027. 

  2028.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  2029. 

  2030.         setEngineSettings(self.host)

  2031.         self.restartTimersIfNeeded()

  2032. 

  2033.         if oldSettings.get(CARLA_KEY_MAIN_CLASSIC_SKIN, None) not in (self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN], None):

  2034.             newSkin = "classic" if self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN] else None

  2035. 

  2036.             for pitem in self.fPluginList:

  2037.                 if pitem is None:

  2038.                     continue

  2039.                 pitem.recreateWidget(newSkin = newSkin)

  2040. 

  2041.         return settings

  2042. 

  2043.     # --------------------------------------------------------------------------------------------------------

  2044.     # Settings (helpers)

  2045. 

  2046.     def enableTransport(self, enabled):

  2047.         self.ui.group_transport_controls.setEnabled(enabled)

  2048.         self.ui.group_transport_settings.setEnabled(enabled)

  2049. 

  2050.     @pyqtSlot()

  2051.     def slot_restoreCanvasScrollbarValues(self):

  2052.         settings = QSafeSettings()

  2053.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  2054.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  2055.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2056.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2057. 

  2058.     # --------------------------------------------------------------------------------------------------------

  2059.     # Settings (menu actions)

  2060. 

  2061.     @pyqtSlot(bool)

  2062.     def slot_showSidePanel(self, yesNo):

  2063.         self.ui.dockWidget.setEnabled(yesNo)

  2064.         self.ui.dockWidget.setVisible(yesNo)

  2065. 

  2066.     @pyqtSlot(bool)

  2067.     def slot_showToolbar(self, yesNo):

  2068.         self.ui.toolBar.blockSignals(True)

  2069.         self.ui.toolBar.setEnabled(yesNo)

  2070.         self.ui.toolBar.setVisible(yesNo)

  2071.         self.ui.toolBar.blockSignals(False)

  2072. 

  2073.     @pyqtSlot(bool)

  2074.     def slot_showCanvasMeters(self, yesNo):

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

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

  2077.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2078. 

  2079.     @pyqtSlot(bool)

  2080.     def slot_showCanvasKeyboard(self, yesNo):

  2081.         self.ui.scrollArea.setVisible(yesNo)

  2082.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2083. 

  2084.     @pyqtSlot()

  2085.     def slot_configureCarla(self):

  2086.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2087.         if not dialog.exec_():

  2088.             return

  2089. 

  2090.         self.loadSettings(False)

  2091. 

  2092.         if self.fWithCanvas:

  2093.             patchcanvas.clear()

  2094.             self.setupCanvas()

  2095.             self.slot_miniCanvasCheckAll()

  2096. 

  2097.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2098.             pass

  2099.         elif self.host.is_engine_running():

  2100.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2101. 

  2102.     # --------------------------------------------------------------------------------------------------------

  2103.     # About (menu actions)

  2104. 

  2105.     @pyqtSlot()

  2106.     def slot_aboutCarla(self):

  2107.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2108. 

  2109.     @pyqtSlot()

  2110.     def slot_aboutJuce(self):

  2111.         JuceAboutW(self.fParentOrSelf).exec_()

  2112. 

  2113.     @pyqtSlot()

  2114.     def slot_aboutQt(self):

  2115.         QApplication.instance().aboutQt()

  2116. 

  2117.     # --------------------------------------------------------------------------------------------------------

  2118.     # Disk (menu actions)

  2119. 

  2120.     @pyqtSlot(int)

  2121.     def slot_diskFolderChanged(self, index):

  2122.         if index < 0:

  2123.             return

  2124.         elif index == 0:

  2125.             filename = HOME

  2126.             self.ui.b_disk_remove.setEnabled(False)

  2127.         else:

  2128.             filename = self.ui.cb_disk.itemData(index)

  2129.             self.ui.b_disk_remove.setEnabled(True)

  2130. 

  2131.         self.fDirModel.setRootPath(filename)

  2132.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2133. 

  2134.     @pyqtSlot()

  2135.     def slot_diskFolderAdd(self):

  2136.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2137. 

  2138.         if newPath:

  2139.             if newPath[-1] == os.sep:

  2140.                 newPath = newPath[:-1]

  2141.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2142.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2143.             self.ui.b_disk_remove.setEnabled(True)

  2144. 

  2145.     @pyqtSlot()

  2146.     def slot_diskFolderRemove(self):

  2147.         index = self.ui.cb_disk.currentIndex()

  2148. 

  2149.         if index <= 0:

  2150.             return

  2151. 

  2152.         self.ui.cb_disk.removeItem(index)

  2153. 

  2154.         if self.ui.cb_disk.currentIndex() == 0:

  2155.             self.ui.b_disk_remove.setEnabled(False)

  2156. 

  2157.     @pyqtSlot(QModelIndex)

  2158.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2159.         filename = self.fDirModel.filePath(modelIndex)

  2160. 

  2161.         if not self.ui.listWidget.isDragUrlValid(filename):

  2162.             return

  2163. 

  2164.         if not self.host.load_file(filename):

  2165.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2166.                              self.tr("Failed to load file"),

  2167.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2168.             return

  2169. 

  2170.         if filename.endswith(".carxp"):

  2171.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2172. 

  2173.     # --------------------------------------------------------------------------------------------------------

  2174.     # Transport

  2175. 

  2176.     def refreshTransport(self, forced = False):

  2177.         if not self.ui.l_transport_time.isVisible():

  2178.             return

  2179.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2180.             return

  2181. 

  2182.         timeInfo = self.host.get_transport_info()

  2183.         playing  = timeInfo['playing']

  2184.         frame    = timeInfo['frame']

  2185.         bpm      = timeInfo['bpm']

  2186. 

  2187.         if playing != self.fLastTransportState or forced:

  2188.             if playing:

  2189.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2190.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2191.                 else:

  2192.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2193.                 self.ui.b_transport_play.setChecked(True)

  2194.                 self.ui.b_transport_play.setIcon(icon)

  2195.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2196.             else:

  2197.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2198.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2199.                 else:

  2200.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2201.                 self.ui.b_transport_play.setChecked(False)

  2202.                 self.ui.b_transport_play.setIcon(icon)

  2203.                 #self.ui.b_play.setText(self.tr("&Play"))

  2204. 

  2205.             self.fLastTransportState = playing

  2206. 

  2207.         if frame != self.fLastTransportFrame or forced:

  2208.             self.fLastTransportFrame = frame

  2209. 

  2210.             time = frame / self.fSampleRate

  2211.             secs =  time % 60

  2212.             mins = (time / 60) % 60

  2213.             hrs  = (time / 3600) % 60

  2214.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2215. 

  2216.             frame1 =  frame % 1000

  2217.             frame2 = (frame / 1000) % 1000

  2218.             frame3 = (frame / 1000000) % 1000

  2219.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2220. 

  2221.             bar  = timeInfo['bar']

  2222.             beat = timeInfo['beat']

  2223.             tick = timeInfo['tick']

  2224.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2225. 

  2226.         if bpm != self.fLastTransportBPM or forced:

  2227.             self.fLastTransportBPM = bpm

  2228. 

  2229.             if bpm > 0.0:

  2230.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2231.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2232.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2233.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2234.             else:

  2235.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2236. 

  2237.     # --------------------------------------------------------------------------------------------------------

  2238.     # Transport (menu actions)

  2239. 

  2240.     @pyqtSlot(bool)

  2241.     def slot_transportPlayPause(self, toggled):

  2242.         if self.host.isPlugin or not self.host.is_engine_running():

  2243.             return

  2244. 

  2245.         if toggled:

  2246.             self.host.transport_play()

  2247.         else:

  2248.             self.host.transport_pause()

  2249. 

  2250.         self.refreshTransport()

  2251. 

  2252.     @pyqtSlot()

  2253.     def slot_transportStop(self):

  2254.         if self.host.isPlugin or not self.host.is_engine_running():

  2255.             return

  2256. 

  2257.         self.host.transport_pause()

  2258.         self.host.transport_relocate(0)

  2259. 

  2260.         self.refreshTransport()

  2261. 

  2262.     @pyqtSlot()

  2263.     def slot_transportBackwards(self):

  2264.         if self.host.isPlugin or not self.host.is_engine_running():

  2265.             return

  2266. 

  2267.         newFrame = self.host.get_current_transport_frame() - 100000

  2268. 

  2269.         if newFrame < 0:

  2270.             newFrame = 0

  2271. 

  2272.         self.host.transport_relocate(newFrame)

  2273. 

  2274.     @pyqtSlot(float)

  2275.     def slot_transportBpmChanged(self, newValue):

  2276.         self.host.transport_bpm(newValue)

  2277. 

  2278.     @pyqtSlot()

  2279.     def slot_transportForwards(self):

  2280.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2281.             return

  2282. 

  2283.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2284.         self.host.transport_relocate(newFrame)

  2285. 

  2286.     @pyqtSlot(bool)

  2287.     def slot_transportJackEnabled(self, clicked):

  2288.         if not self.host.is_engine_running():

  2289.             return

  2290.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2291.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2292.                                     self.host.transportMode,

  2293.                                     self.host.transportExtra)

  2294. 

  2295.     @pyqtSlot(bool)

  2296.     def slot_transportLinkEnabled(self, clicked):

  2297.         if not self.host.is_engine_running():

  2298.             return

  2299.         extra = ":link:" if clicked else ""

  2300.         self.host.transportExtra = extra

  2301.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2302.                                     self.host.transportMode,

  2303.                                     self.host.transportExtra)

  2304. 

  2305.     # --------------------------------------------------------------------------------------------------------

  2306.     # Other

  2307. 

  2308.     @pyqtSlot(bool)

  2309.     def slot_xrunClear(self):

  2310.         self.host.clear_engine_xruns()

  2311. 

  2312.     # --------------------------------------------------------------------------------------------------------

  2313.     # Canvas scrollbars

  2314. 

  2315.     @pyqtSlot(int)

  2316.     def slot_horizontalScrollBarChanged(self, value):

  2317.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2318.         if maximum == 0:

  2319.             xp = 0

  2320.         else:

  2321.             xp = float(value) / maximum

  2322.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2323.         self.updateCanvasInitialPos()

  2324. 

  2325.     @pyqtSlot(int)

  2326.     def slot_verticalScrollBarChanged(self, value):

  2327.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2328.         if maximum == 0:

  2329.             yp = 0

  2330.         else:

  2331.             yp = float(value) / maximum

  2332.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2333.         self.updateCanvasInitialPos()

  2334. 

  2335.     # --------------------------------------------------------------------------------------------------------

  2336.     # Canvas keyboard

  2337. 

  2338.     @pyqtSlot(int)

  2339.     def slot_noteOn(self, note):

  2340.         if self.fPluginCount == 0:

  2341.             return

  2342. 

  2343.         for pluginId in self.fSelectedPlugins:

  2344.             self.host.send_midi_note(pluginId, 0, note, 100)

  2345. 

  2346.             pedit = self.getPluginEditDialog(pluginId)

  2347.             pedit.noteOn(0, note, 100)

  2348. 

  2349.     @pyqtSlot(int)

  2350.     def slot_noteOff(self, note):

  2351.         if self.fPluginCount == 0:

  2352.             return

  2353. 

  2354.         for pluginId in self.fSelectedPlugins:

  2355.             self.host.send_midi_note(pluginId, 0, note, 0)

  2356. 

  2357.             pedit = self.getPluginEditDialog(pluginId)

  2358.             pedit.noteOff(0, note)

  2359. 

  2360.     # --------------------------------------------------------------------------------------------------------

  2361.     # Canvas keyboard (host callbacks)

  2362. 

  2363.     @pyqtSlot(int, int, int, int)

  2364.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2365.         if pluginId in self.fSelectedPlugins:

  2366.             self.ui.keyboard.sendNoteOn(note, False)

  2367. 

  2368.     @pyqtSlot(int, int, int)

  2369.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2370.         if pluginId in self.fSelectedPlugins:

  2371.             self.ui.keyboard.sendNoteOff(note, False)

  2372. 

  2373.     # --------------------------------------------------------------------------------------------------------

  2374. 

  2375.     @pyqtSlot(int)

  2376.     def slot_handleUpdateCallback(self, pluginId):

  2377.         pitem = self.getPluginItem(pluginId)

  2378. 

  2379.         if pitem is None:

  2380.             return

  2381. 

  2382.         wasCompacted = pitem.isCompacted()

  2383.         isCompacted  = wasCompacted

  2384. 

  2385.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2386.         if not check:

  2387.             return

  2388.         isCompacted = bool(check == "true")

  2389. 

  2390.         if wasCompacted == isCompacted:

  2391.             return

  2392. 

  2393.         pitem.recreateWidget(True)

  2394. 

  2395.     # --------------------------------------------------------------------------------------------------------

  2396.     # MiniCanvas stuff

  2397. 

  2398.     @pyqtSlot()

  2399.     def slot_miniCanvasCheckAll(self):

  2400.         self.slot_miniCanvasCheckSize()

  2401.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2402.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2403. 

  2404.     @pyqtSlot()

  2405.     def slot_miniCanvasCheckSize(self):

  2406.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2407.             return

  2408. 

  2409.         currentIndex = self.ui.tabWidget.currentIndex()

  2410. 

  2411.         if currentIndex == 1:

  2412.             width  = self.ui.graphicsView.width()

  2413.             height = self.ui.graphicsView.height()

  2414.         else:

  2415.             self.ui.tabWidget.blockSignals(True)

  2416.             self.ui.tabWidget.setCurrentIndex(1)

  2417.             width  = self.ui.graphicsView.width()

  2418.             height = self.ui.graphicsView.height()

  2419.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2420.             self.ui.tabWidget.blockSignals(False)

  2421. 

  2422.         self.scene.updateLimits()

  2423. 

  2424.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2425. 

  2426.     @pyqtSlot(float, float)

  2427.     def slot_miniCanvasMoved(self, xp, yp):

  2428.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2429.         vsb = self.ui.graphicsView.verticalScrollBar()

  2430.         hsb.setValue(xp * hsb.maximum())

  2431.         vsb.setValue(yp * vsb.maximum())

  2432.         self.updateCanvasInitialPos()

  2433. 

  2434.     # --------------------------------------------------------------------------------------------------------

  2435.     # Logs autoscroll, save and clear

  2436. 

  2437.     @pyqtSlot(int)

  2438.     def slot_toggleLogAutoscroll(self, checkState):

  2439.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2440.         if self.autoscrollOnNewLog:

  2441.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2442. 

  2443.     @pyqtSlot(int)

  2444.     def slot_logSliderMoved(self, slider_pos):

  2445.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2446.             self.lastLogSliderPos = slider_pos

  2447.         else:

  2448.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2449. 

  2450.     @pyqtSlot()

  2451.     def slot_logButtonsState(self, enabled=True):

  2452.         self.ui.logs_clear.setEnabled(enabled)

  2453.         self.ui.logs_save.setEnabled(enabled)

  2454. 

  2455.     @pyqtSlot()

  2456.     def slot_logSave(self):

  2457.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2458.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2459. 

  2460.         if not filename:

  2461.             return

  2462. 

  2463.         try:

  2464.             with open(filename, "w") as logfile:

  2465.                 logfile.write(self.ui.text_logs.toPlainText())

  2466.                 logfile.close()

  2467.         except:

  2468.             return

  2469. 

  2470.     @pyqtSlot()

  2471.     def slot_logClear(self):

  2472.         self.ui.text_logs.clear()

  2473.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2474.         self.slot_logButtonsState(False)

  2475. 

  2476.     # --------------------------------------------------------------------------------------------------------

  2477.     # Timers

  2478. 

  2479.     def startTimers(self):

  2480.         if self.fIdleTimerFast == 0:

  2481.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2482. 

  2483.         if self.fIdleTimerSlow == 0:

  2484.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2485. 

  2486.     def restartTimersIfNeeded(self):

  2487.         if self.fIdleTimerFast != 0:

  2488.             self.killTimer(self.fIdleTimerFast)

  2489.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2490. 

  2491.         if self.fIdleTimerSlow != 0:

  2492.             self.killTimer(self.fIdleTimerSlow)

  2493.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2494. 

  2495.     def killTimers(self):

  2496.         if self.fIdleTimerFast != 0:

  2497.             self.killTimer(self.fIdleTimerFast)

  2498.             self.fIdleTimerFast = 0

  2499. 

  2500.         if self.fIdleTimerSlow != 0:

  2501.             self.killTimer(self.fIdleTimerSlow)

  2502.             self.fIdleTimerSlow = 0

  2503. 

  2504.     # --------------------------------------------------------------------------------------------------------

  2505.     # Misc

  2506. 

  2507.     @pyqtSlot(bool)

  2508.     def slot_toolbarVisibilityChanged(self, visible):

  2509.         self.ui.toolBar.blockSignals(True)

  2510.         self.ui.toolBar.setEnabled(visible)

  2511.         self.ui.toolBar.blockSignals(False)

  2512.         self.ui.act_settings_show_toolbar.setChecked(visible)

  2513. 

  2514.     @pyqtSlot(int)

  2515.     def slot_tabChanged(self, index):

  2516.         if index != 1:

  2517.             return

  2518. 

  2519.         self.ui.graphicsView.setFocus()

  2520. 

  2521.     @pyqtSlot(int)

  2522.     def slot_handleReloadAllCallback(self, pluginId):

  2523.         if pluginId >= self.fPluginCount:

  2524.             return

  2525. 

  2526.         pitem = self.fPluginList[pluginId]

  2527.         if pitem is None:

  2528.             return

  2529. 

  2530.         pitem.recreateWidget()

  2531. 

  2532.     # --------------------------------------------------------------------------------------------------------

  2533. 

  2534.     @pyqtSlot(int, int, str)

  2535.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2536.         if opcode == NSM_CALLBACK_INIT:

  2537.             return

  2538. 

  2539.         # Error

  2540.         elif opcode == NSM_CALLBACK_ERROR:

  2541.             pass

  2542. 

  2543.         # Reply

  2544.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2545.             self.fFirstEngineInit    = False

  2546.             self.fSessionManagerName = valueStr

  2547.             self.setProperWindowTitle()

  2548. 

  2549.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2550.             if (valueInt & (1 << 1)) == 0x0:

  2551.                 self.fWindowCloseHideGui = False

  2552.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2553.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2554.                 self.show()

  2555. 

  2556.         # Open

  2557.         elif opcode == NSM_CALLBACK_OPEN:

  2558.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2559.             self.setProperWindowTitle()

  2560. 

  2561.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2562.             self.slot_engineStop(True)

  2563.             return

  2564. 

  2565.         # Save

  2566.         elif opcode == NSM_CALLBACK_SAVE:

  2567.             self.saveProjectNow()

  2568. 

  2569.         # Session is Loaded

  2570.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2571.             pass

  2572. 

  2573.         # Show Optional Gui

  2574.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2575.             self.show()

  2576. 

  2577.         # Hide Optional Gui

  2578.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2579.             self.hideForNSM()

  2580. 

  2581.         # Set client name

  2582.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2583.             self.fClientName = valueStr

  2584.             return

  2585. 

  2586.         self.host.nsm_ready(opcode)

  2587. 

  2588.     # --------------------------------------------------------------------------------------------------------

  2589. 

  2590.     def fixLogText(self, text):

  2591.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2592. 

  2593.     @pyqtSlot(int, int, int, int, float, str)

  2594.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2595.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2596. 

  2597.     @pyqtSlot(str)

  2598.     def slot_handleInfoCallback(self, info):

  2599.         QMessageBox.information(self, "Information", info)

  2600. 

  2601.     @pyqtSlot(str)

  2602.     def slot_handleErrorCallback(self, error):

  2603.         QMessageBox.critical(self, "Error", error)

  2604. 

  2605.     @pyqtSlot()

  2606.     def slot_handleQuitCallback(self):

  2607.         self.fIsProjectLoading = False

  2608.         self.killTimers()

  2609.         self.removeAllPlugins()

  2610.         self.projectLoadingFinished(False)

  2611. 

  2612.     @pyqtSlot(int)

  2613.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2614.         # FIXME

  2615.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2616.             patchcanvas.redrawPluginGroup(pluginId)

  2617. 

  2618.     # --------------------------------------------------------------------------------------------------------

  2619. 

  2620.     @pyqtSlot()

  2621.     def slot_handleSIGUSR1(self):

  2622.         print("Got SIGUSR1 -> Saving project now")

  2623.         self.slot_fileSave()

  2624. 

  2625.     @pyqtSlot()

  2626.     def slot_handleSIGTERM(self):

  2627.         print("Got SIGTERM -> Closing now")

  2628.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2629.         self.close()

  2630. 

  2631.     # --------------------------------------------------------------------------------------------------------

  2632.     # Internal stuff

  2633. 

  2634.     def getExtraPtr(self, plugin):

  2635.         ptype = plugin['type']

  2636. 

  2637.         if ptype == PLUGIN_LADSPA:

  2638.             uniqueId = plugin['uniqueId']

  2639. 

  2640.             self.maybeLoadRDFs()

  2641. 

  2642.             for rdfItem in self.fLadspaRdfList:

  2643.                 if rdfItem.UniqueID == uniqueId:

  2644.                     return pointer(rdfItem)

  2645. 

  2646.         elif ptype == PLUGIN_SF2:

  2647.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2648.                 return self._true

  2649. 

  2650.         return None

  2651. 

  2652.     def maybeLoadRDFs(self):

  2653.         if not self.fLadspaRdfNeedsUpdate:

  2654.             return

  2655. 

  2656.         self.fLadspaRdfNeedsUpdate = False

  2657.         self.fLadspaRdfList = []

  2658. 

  2659.         if not haveLRDF:

  2660.             return

  2661. 

  2662.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2663.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2664. 

  2665.         if os.path.exists(frLadspaFile):

  2666.             frLadspa = open(frLadspaFile, 'r')

  2667. 

  2668.             try:

  2669.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2670.             except:

  2671.                 pass

  2672. 

  2673.             frLadspa.close()

  2674. 

  2675.     # --------------------------------------------------------------------------------------------------------

  2676. 

  2677.     def getPluginCount(self):

  2678.         return self.fPluginCount

  2679. 

  2680.     def getPluginItem(self, pluginId):

  2681.         if pluginId >= self.fPluginCount:

  2682.             return None

  2683. 

  2684.         pitem = self.fPluginList[pluginId]

  2685.         if pitem is None:

  2686.             return None

  2687.         #if False:

  2688.             #return CarlaRackItem(self, 0, False)

  2689. 

  2690.         return pitem

  2691. 

  2692.     def getPluginEditDialog(self, pluginId):

  2693.         if pluginId >= self.fPluginCount:

  2694.             return None

  2695. 

  2696.         pitem = self.fPluginList[pluginId]

  2697.         if pitem is None:

  2698.             return None

  2699.         if False:

  2700.             return PluginEdit(self, self.host, 0)

  2701. 

  2702.         return pitem.getEditDialog()

  2703. 

  2704.     def getPluginSlotWidget(self, pluginId):

  2705.         if pluginId >= self.fPluginCount:

  2706.             return None

  2707. 

  2708.         pitem = self.fPluginList[pluginId]

  2709.         if pitem is None:

  2710.             return None

  2711.         #if False:

  2712.             #return AbstractPluginSlot()

  2713. 

  2714.         return pitem.getWidget()

  2715. 

  2716.     # --------------------------------------------------------------------------------------------------------

  2717. 

  2718.     def waitForPendingEvents(self):

  2719.         pass

  2720. 

  2721.     # --------------------------------------------------------------------------------------------------------

  2722.     # show/hide event

  2723. 

  2724.     def showEvent(self, event):

  2725.         self.getAndRefreshRuntimeInfo()

  2726.         self.refreshTransport(True)

  2727.         QMainWindow.showEvent(self, event)

  2728. 

  2729.         if QT_VERSION >= 0x50600:

  2730.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2731.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2732. 

  2733.         # set our gui as parent for all plugins UIs

  2734.         if self.host.manageUIs and not self.host.isControl:

  2735.             if MACOS:

  2736.                 nsViewPtr = int(self.winId())

  2737.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2738.             else:

  2739.                 winIdStr = "%x" % int(self.winId())

  2740.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2741. 

  2742.     def hideEvent(self, event):

  2743.         # disable parent

  2744.         if not self.host.isControl:

  2745.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2746. 

  2747.         QMainWindow.hideEvent(self, event)

  2748. 

  2749.     # --------------------------------------------------------------------------------------------------------

  2750.     # resize event

  2751. 

  2752.     def resizeEvent(self, event):

  2753.         QMainWindow.resizeEvent(self, event)

  2754. 

  2755.         if self.fWithCanvas:

  2756.             self.slot_miniCanvasCheckSize()

  2757. 

  2758.     # --------------------------------------------------------------------------------------------------------

  2759.     # timer event

  2760. 

  2761.     def refreshRuntimeInfo(self, load, xruns):

  2762.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2763.         txt2 = "" if (xruns == 1) else "s"

  2764.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2765.         self.ui.pb_dsp_load.setValue(int(load))

  2766. 

  2767.     def getAndRefreshRuntimeInfo(self):

  2768.         if not self.ui.pb_dsp_load.isVisible():

  2769.             return

  2770.         if not self.host.is_engine_running():

  2771.             return

  2772.         info = self.host.get_runtime_engine_info()

  2773.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2774. 

  2775.     def idleFast(self):

  2776.         self.host.engine_idle()

  2777.         self.refreshTransport()

  2778. 

  2779.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2780.             return

  2781. 

  2782.         for pitem in self.fPluginList:

  2783.             if pitem is None:

  2784.                 break

  2785. 

  2786.             pitem.getWidget().idleFast()

  2787. 

  2788.         for pluginId in self.fSelectedPlugins:

  2789.             self.fPeaksCleared = False

  2790.             if self.ui.peak_in.isVisible():

  2791.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2792.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2793.             if self.ui.peak_out.isVisible():

  2794.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2795.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2796.             return

  2797. 

  2798.         if self.fPeaksCleared:

  2799.             return

  2800. 

  2801.         self.fPeaksCleared = True

  2802.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2803.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2804.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2805.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2806. 

  2807.     def idleSlow(self):

  2808.         self.getAndRefreshRuntimeInfo()

  2809. 

  2810.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2811.             return

  2812. 

  2813.         for pitem in self.fPluginList:

  2814.             if pitem is None:

  2815.                 break

  2816. 

  2817.             pitem.getWidget().idleSlow()

  2818. 

  2819.     def timerEvent(self, event):

  2820.         if event.timerId() == self.fIdleTimerFast:

  2821.             self.idleFast()

  2822. 

  2823.         elif event.timerId() == self.fIdleTimerSlow:

  2824.             self.idleSlow()

  2825. 

  2826.         QMainWindow.timerEvent(self, event)

  2827. 

  2828.     # --------------------------------------------------------------------------------------------------------

  2829.     # color/style change event

  2830. 

  2831.     def changeEvent(self, event):

  2832.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2833.             self.updateStyle()

  2834.         QMainWindow.changeEvent(self, event)

  2835. 

  2836.     def updateStyle(self):

  2837.         # Rack padding images setup

  2838.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2839.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2840. 

  2841.         min_value = 0.07

  2842. 

  2843.         if PYQT_VERSION >= 0x50600:

  2844.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2845.         else:

  2846.             value_fix = 1.5

  2847. 

  2848.         rack_pal = self.ui.rack.palette()

  2849.         bg_color = rack_pal.window().color()

  2850.         fg_color = rack_pal.text().color()

  2851.         bg_value = 1.0 - bg_color.blackF()

  2852.         if bg_value != 0.0 and bg_value < min_value:

  2853.             pad_color = bg_color.lighter(int(100*min_value/bg_value*value_fix))

  2854.         else:

  2855.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2856. 

  2857.         painter = QPainter()

  2858.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2859. 

  2860.         painter.begin(rack_imgL)

  2861.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2862.         painter.setBrush(pad_color)

  2863.         painter.drawRect(fillRect)

  2864.         painter.end()

  2865.         rack_pixmapL = QPixmap(rack_imgL)

  2866.         self.imgL_palette = QPalette()

  2867.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2868.         self.ui.pad_left.setPalette(self.imgL_palette)

  2869.         self.ui.pad_left.setAutoFillBackground(True)

  2870. 

  2871.         painter.begin(rack_imgR)

  2872.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2873.         painter.setBrush(pad_color)

  2874.         painter.drawRect(fillRect)

  2875.         painter.end()

  2876.         rack_pixmapR = QPixmap(rack_imgR)

  2877.         self.imgR_palette = QPalette()

  2878.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2879.         self.ui.pad_right.setPalette(self.imgR_palette)

  2880.         self.ui.pad_right.setAutoFillBackground(True)

  2881. 

  2882.         # qt's rgba is actually argb, so convert that

  2883.         bg_color_value = bg_color.rgba()

  2884.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2885. 

  2886.         fg_color_value = fg_color.rgba()

  2887.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2888. 

  2889.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2890.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2891. 

  2892.     # --------------------------------------------------------------------------------------------------------

  2893.     # paint event

  2894. 

  2895.     #def paintEvent(self, event):

  2896.         #QMainWindow.paintEvent(self, event)

  2897. 

  2898.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2899.             #return

  2900. 

  2901.         #painter = QPainter(self)

  2902.         #painter.setBrush(QColor(36, 36, 36))

  2903.         #painter.setPen(QColor(62, 62, 62))

  2904.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2905. 

  2906.     # --------------------------------------------------------------------------------------------------------

  2907.     # close event

  2908. 

  2909.     def shouldIgnoreClose(self):

  2910.         if self.host.isControl or self.host.isPlugin:

  2911.             return False

  2912.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2913.             return False

  2914.         if self.fWindowCloseHideGui:

  2915.             return False

  2916.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2917.             return QMessageBox.question(self, self.tr("Quit"),

  2918.                                               self.tr("Are you sure you want to quit Carla?"),

  2919.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2920.         return False

  2921. 

  2922.     def closeEvent(self, event):

  2923.         if self.shouldIgnoreClose():

  2924.             event.ignore()

  2925.             return

  2926. 

  2927.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2928.             self.hideForNSM()

  2929.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2930.             return

  2931. 

  2932.         patchcanvas.handleAllPluginsRemoved()

  2933. 

  2934.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2935.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2936.             self.fMacClosingHelper = False

  2937.             event.ignore()

  2938. 

  2939.             for i in reversed(range(self.fPluginCount)):

  2940.                 self.host.show_custom_ui(i, False)

  2941. 

  2942.             QTimer.singleShot(100, self.close)

  2943.             return

  2944. 

  2945.         self.killTimers()

  2946.         self.saveSettings()

  2947. 

  2948.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2949.             if not self.slot_engineStop(True):

  2950.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2951.                 event.ignore()

  2952.                 return

  2953. 

  2954.         QMainWindow.closeEvent(self, event)

  2955. 

  2956.         # if we reach this point, fully close ourselves

  2957.         gCarla.gui = None

  2958.         QApplication.instance().quit()

  2959. 

  2960. # ------------------------------------------------------------------------------------------------

  2961. # Canvas callback

  2962. 

  2963. def canvasCallback(action, value1, value2, valueStr):

  2964.     host = gCarla.gui.host

  2965. 

  2966.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2967.         return

  2968. 

  2969.     if action == patchcanvas.ACTION_GROUP_INFO:

  2970.         pass

  2971. 

  2972.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2973.         pass

  2974. 

  2975.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2976.         groupId = value1

  2977.         patchcanvas.splitGroup(groupId)

  2978.         gCarla.gui.updateMiniCanvasLater()

  2979. 

  2980.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2981.         groupId = value1

  2982.         patchcanvas.joinGroup(groupId)

  2983.         gCarla.gui.updateMiniCanvasLater()

  2984. 

  2985.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2986.         if gCarla.gui.fIsProjectLoading:

  2987.             return

  2988.         if not host.is_engine_running():

  2989.             return

  2990.         groupId = value1

  2991.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2992.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2993.         gCarla.gui.updateMiniCanvasLater()

  2994. 

  2995.     elif action == patchcanvas.ACTION_PORT_INFO:

  2996.         pass

  2997. 

  2998.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2999.         pass

  3000. 

  3001.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  3002.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  3003. 

  3004.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  3005.             print("Connection failed:", host.get_last_error())

  3006. 

  3007.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  3008.         connectionId = value1

  3009. 

  3010.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  3011.             print("Disconnect failed:", host.get_last_error())

  3012. 

  3013.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  3014.         pluginId = value1

  3015. 

  3016.         if not host.clone_plugin(pluginId):

  3017.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3018.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3019. 

  3020.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  3021.         pluginId = value1

  3022.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3023. 

  3024.         if pwidget is not None:

  3025.             pwidget.showEditDialog()

  3026. 

  3027.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  3028.         pluginId = value1

  3029.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3030. 

  3031.         if pwidget is not None:

  3032.             pwidget.showRenameDialog()

  3033. 

  3034.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  3035.         pluginId = value1

  3036.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3037. 

  3038.         if pwidget is not None:

  3039.             pwidget.showReplaceDialog()

  3040. 

  3041.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  3042.         pluginId = value1

  3043. 

  3044.         if not host.remove_plugin(pluginId):

  3045.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3046.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3047. 

  3048.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  3049.         pluginId = value1

  3050.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3051. 

  3052.         if pwidget is not None:

  3053.             pwidget.showCustomUI()

  3054. 

  3055.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  3056.         gCarla.gui.slot_showPluginActionsMenu()

  3057. 

  3058.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  3059.         if gCarla.gui.fIsProjectLoading:

  3060.             return

  3061.         if not host.is_engine_running():

  3062.             return

  3063.         pluginId = value1

  3064.         width, height = [int(v) for v in valueStr.split(":")]

  3065.         return host.render_inline_display(pluginId, width, height)

  3066. 

  3067. # ------------------------------------------------------------------------------------------------------------

  3068. # Engine callback

  3069. 

  3070. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3071.     # kdevelop likes this :)

  3072.     if False: host = CarlaHostNull()

  3073. 

  3074.     valueStr = charPtrToString(valueStr)

  3075. 

  3076.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3077.         host.processMode   = value1

  3078.         host.transportMode = value2

  3079.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3080.         host.processMode   = value1

  3081.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3082.         host.transportMode  = value1

  3083.         host.transportExtra = valueStr

  3084. 

  3085.     if action == ENGINE_CALLBACK_DEBUG:

  3086.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3087.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3088.         host.PluginAddedCallback.emit(pluginId, value1, valueStr)

  3089.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3090.         host.PluginRemovedCallback.emit(pluginId)

  3091.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3092.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3093.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3094.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3095.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3096.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3097.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3098.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3099.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3100.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3101.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3102.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3103.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3104.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3105.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3106.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3107.         host.ProgramChangedCallback.emit(pluginId, value1)

  3108.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3109.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3110.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3111.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3112.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3113.         host.UiStateChangedCallback.emit(pluginId, value1)

  3114.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3115.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3116.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3117.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3118.     elif action == ENGINE_CALLBACK_UPDATE:

  3119.         host.UpdateCallback.emit(pluginId)

  3120.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3121.         host.ReloadInfoCallback.emit(pluginId)

  3122.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3123.         host.ReloadParametersCallback.emit(pluginId)

  3124.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3125.         host.ReloadProgramsCallback.emit(pluginId)

  3126.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3127.         host.ReloadAllCallback.emit(pluginId)

  3128.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3129.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3130.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3131.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3132.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3133.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3134.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3135.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3136.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3137.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3138.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3139.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3140.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3141.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3142.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3143.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3144.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3145.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3146.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3147.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3148.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3149.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3150.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3151.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3152.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3153.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3154.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3155.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3156.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3157.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3158.         host.EngineStoppedCallback.emit()

  3159.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3160.         host.ProcessModeChangedCallback.emit(value1)

  3161.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3162.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3163.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3164.         host.BufferSizeChangedCallback.emit(value1)

  3165.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3166.         host.SampleRateChangedCallback.emit(valuef)

  3167.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3168.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3169.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3170.         host.ProjectLoadFinishedCallback.emit()

  3171.     elif action == ENGINE_CALLBACK_NSM:

  3172.         host.NSMCallback.emit(value1, value2, valueStr)

  3173.     elif action == ENGINE_CALLBACK_IDLE:

  3174.         QApplication.processEvents()

  3175.     elif action == ENGINE_CALLBACK_INFO:

  3176.         host.InfoCallback.emit(valueStr)

  3177.     elif action == ENGINE_CALLBACK_ERROR:

  3178.         host.ErrorCallback.emit(valueStr)

  3179.     elif action == ENGINE_CALLBACK_QUIT:

  3180.         host.QuitCallback.emit()

  3181.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3182.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3183.     else:

  3184.         print("unhandled action", action)

  3185. 

  3186. # ------------------------------------------------------------------------------------------------------------

  3187. # File callback

  3188. 

  3189. def fileCallback(ptr, action, isDir, title, filter):

  3190.     title  = charPtrToString(title)

  3191.     filter = charPtrToString(filter)

  3192. 

  3193.     if action == FILE_CALLBACK_OPEN:

  3194.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3195.     elif action == FILE_CALLBACK_SAVE:

  3196.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3197.     else:

  3198.         ret, ok = ("", "")

  3199. 

  3200.     # FIXME use ok value, test if it works as expected

  3201.     if not ret:

  3202.         return None

  3203. 

  3204.     # FIXME

  3205.     global fileRet

  3206.     fileRet = c_char_p(ret.encode("utf-8"))

  3207.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3208.     return retval.contents.value

  3209. 

  3210. # ------------------------------------------------------------------------------------------------------------

  3211. # Init host

  3212. 

  3213. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3214.     pathBinaries, pathResources = getPaths(libPrefix)

  3215. 

  3216.     # --------------------------------------------------------------------------------------------------------

  3217.     # Fail if binary dir is not found

  3218. 

  3219.     if not os.path.exists(pathBinaries):

  3220.         if failError:

  3221.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3222.             sys.exit(1)

  3223.         return

  3224. 

  3225.     # --------------------------------------------------------------------------------------------------------

  3226.     # Check if we should open main lib as local or global

  3227. 

  3228.     settings = QSafeSettings("falkTX", "Carla2")

  3229. 

  3230.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3231. 

  3232.     # --------------------------------------------------------------------------------------------------------

  3233.     # Set Carla library name

  3234. 

  3235.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3236.     libname   = os.path.join(pathBinaries, libname)

  3237.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3238. 

  3239.     # --------------------------------------------------------------------------------------------------------

  3240.     # Print info

  3241. 

  3242.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3243.         print("Carla %s started, status:" % VERSION)

  3244.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3245.         print("  Qt version:     %s" % QT_VERSION_STR)

  3246.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3247.         print("  Binary dir:     %s" % pathBinaries)

  3248.         print("  Resources dir:  %s" % pathResources)

  3249. 

  3250.     # --------------------------------------------------------------------------------------------------------

  3251.     # Init host

  3252. 

  3253.     if failError:

  3254.         # no try

  3255.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3256.     else:

  3257.         try:

  3258.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3259.         except:

  3260.             host = CarlaHostQtNull()

  3261. 

  3262.     host.isControl = isControl

  3263.     host.isPlugin  = isPlugin

  3264. 

  3265.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3266.     host.set_file_callback(fileCallback)

  3267. 

  3268.     # If it's a plugin the paths are already set

  3269.     if not isPlugin:

  3270.         host.pathBinaries  = pathBinaries

  3271.         host.pathResources = pathResources

  3272.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3273.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3274. 

  3275.         if not isControl:

  3276.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3277. 

  3278.     # --------------------------------------------------------------------------------------------------------

  3279.     # Init utils

  3280. 

  3281.     gCarla.utils = CarlaUtils(utilsname)

  3282.     gCarla.utils.set_process_name(os.path.basename(initName))

  3283. 

  3284.     try:

  3285.         sys.stdout.flush()

  3286.     except:

  3287.         pass

  3288. 

  3289.     sys.stdout = CarlaPrint(False)

  3290.     sys.stderr = CarlaPrint(True)

  3291.     sys.excepthook = sys_excepthook

  3292. 

  3293.     # --------------------------------------------------------------------------------------------------------

  3294.     # Done

  3295. 

  3296.     return host

  3297. 

  3298. # ------------------------------------------------------------------------------------------------------------

  3299. # Load host settings

  3300. 

  3301. def loadHostSettings(host):

  3302.     # kdevelop likes this :)

  3303.     if False: host = CarlaHostNull()

  3304. 

  3305.     settings = QSafeSettings("falkTX", "Carla2")

  3306. 

  3307.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3308.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3309.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3310.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3311.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3312.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3313.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3314.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3315.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3316.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3317.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3318.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3319.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3320.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3321. 

  3322.     if host.isPlugin:

  3323.         return

  3324. 

  3325.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3326. 

  3327.     # enums

  3328.     if host.audioDriverForced is None:

  3329.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3330. 

  3331.     if not host.processModeForced:

  3332.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3333. 

  3334.     host.nextProcessMode = host.processMode

  3335. 

  3336.     # --------------------------------------------------------------------------------------------------------

  3337.     # fix things if needed

  3338. 

  3339.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3340.         if LADISH_APP_NAME:

  3341.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3342.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3343. 

  3344.         else:

  3345.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3346. 

  3347.     if gCarla.nogui:

  3348.         host.showLogs = False

  3349. 

  3350.     # --------------------------------------------------------------------------------------------------------

  3351.     # run headless host now if nogui option enabled

  3352. 

  3353.     if gCarla.nogui:

  3354.         runHostWithoutUI(host)

  3355. 

  3356. # ------------------------------------------------------------------------------------------------------------

  3357. # Set host settings

  3358. 

  3359. def setHostSettings(host):

  3360.     # kdevelop likes this :)

  3361.     if False: host = CarlaHostNull()

  3362. 

  3363.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3364.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3365.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3366.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3367.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3368.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3369.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3370.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3371. 

  3372.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3373.         return

  3374. 

  3375.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3376.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3377.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3378. 

  3379.     if not (NSM_URL and host.nsmOK):

  3380.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3381. 

  3382. # ------------------------------------------------------------------------------------------------------------

  3383. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3384. 

  3385. def setEngineSettings(host, oscPort = None):

  3386.     # kdevelop likes this :)

  3387.     if False: host = CarlaHostNull()

  3388. 

  3389.     # --------------------------------------------------------------------------------------------------------

  3390.     # do nothing if control

  3391. 

  3392.     if host.isControl:

  3393.         return "Control"

  3394. 

  3395.     # --------------------------------------------------------------------------------------------------------

  3396. 

  3397.     settings = QSafeSettings("falkTX", "Carla2")

  3398. 

  3399.     # --------------------------------------------------------------------------------------------------------

  3400.     # main settings

  3401. 

  3402.     setHostSettings(host)

  3403. 

  3404.     # --------------------------------------------------------------------------------------------------------

  3405.     # file paths

  3406. 

  3407.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3408.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3409. 

  3410.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3411.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3412. 

  3413.     # --------------------------------------------------------------------------------------------------------

  3414.     # plugin paths

  3415. 

  3416.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3417.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3418.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3419.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3420.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3421.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3422.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3423.     JSFX_PATH   = settings.value(CARLA_KEY_PATHS_JSFX,   CARLA_DEFAULT_JSFX_PATH, list)

  3424.     CLAP_PATH   = settings.value(CARLA_KEY_PATHS_CLAP,   CARLA_DEFAULT_CLAP_PATH, list)

  3425. 

  3426.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3427.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3428.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3429.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3430.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3431.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3432.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3433.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_JSFX,   splitter.join(JSFX_PATH))

  3434.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_CLAP,   splitter.join(CLAP_PATH))

  3435. 

  3436.     # --------------------------------------------------------------------------------------------------------

  3437.     # don't continue if plugin

  3438. 

  3439.     if host.isPlugin:

  3440.         return "Plugin"

  3441. 

  3442.     # --------------------------------------------------------------------------------------------------------

  3443.     # osc settings

  3444. 

  3445.     if oscPort is not None and isinstance(oscPort, int):

  3446.         oscEnabled = True

  3447.         portNumTCP = portNumUDP = oscPort

  3448. 

  3449.     else:

  3450.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3451. 

  3452.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3453.             portNumTCP = -1

  3454.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3455.             portNumTCP = 0

  3456.         else:

  3457.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3458. 

  3459.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3460.             portNumUDP = -1

  3461.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3462.             portNumUDP = 0

  3463.         else:

  3464.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3465. 

  3466.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3467.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3468.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3469. 

  3470.     # --------------------------------------------------------------------------------------------------------

  3471.     # wine settings

  3472. 

  3473.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3474.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3475.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3476.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3477.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3478.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3479. 

  3480.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3481.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3482.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3483.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3484.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3485.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3486. 

  3487.     # --------------------------------------------------------------------------------------------------------

  3488.     # driver and device settings

  3489. 

  3490.     # driver name

  3491.     if host.audioDriverForced is not None:

  3492.         audioDriver = host.audioDriverForced

  3493.     else:

  3494.         try:

  3495.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3496.         except:

  3497.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3498. 

  3499.     # driver options

  3500.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3501.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3502.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3503.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3504. 

  3505.     # Only setup audio things if engine is not running

  3506.     if not host.is_engine_running():

  3507.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3508.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3509. 

  3510.         if not audioDriver.startswith("JACK"):

  3511.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3512.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3513.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3514. 

  3515.     # --------------------------------------------------------------------------------------------------------

  3516.     # fix things if needed

  3517. 

  3518.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3519.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3520.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3521. 

  3522.     # --------------------------------------------------------------------------------------------------------

  3523.     # return selected driver name

  3524. 

  3525.     return audioDriver

  3526. 

  3527. # ------------------------------------------------------------------------------------------------------------

  3528. # Run Carla without showing UI

  3529. 

  3530. def runHostWithoutUI(host):

  3531.     # kdevelop likes this :)

  3532.     if False: host = CarlaHostNull()

  3533. 

  3534.     # --------------------------------------------------------------------------------------------------------

  3535.     # Some initial checks

  3536. 

  3537.     if not gCarla.nogui:

  3538.         return

  3539. 

  3540.     projectFile = getInitialProjectFile(True)

  3541. 

  3542.     if gCarla.nogui is True:

  3543.         oscPort = None

  3544. 

  3545.         if not projectFile:

  3546.             print("Carla no-gui mode can only be used together with a project file.")

  3547.             sys.exit(1)

  3548. 

  3549.     else:

  3550.         oscPort = gCarla.nogui

  3551. 

  3552.     # --------------------------------------------------------------------------------------------------------

  3553.     # Additional imports

  3554. 

  3555.     from time import sleep

  3556. 

  3557.     # --------------------------------------------------------------------------------------------------------

  3558.     # Init engine

  3559. 

  3560.     audioDriver = setEngineSettings(host, oscPort)

  3561.     if not host.engine_init(audioDriver, "Carla"):

  3562.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3563.         sys.exit(1)

  3564. 

  3565.     if projectFile and not host.load_project(projectFile):

  3566.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3567.         host.engine_close()

  3568.         sys.exit(1)

  3569. 

  3570.     # --------------------------------------------------------------------------------------------------------

  3571.     # Idle

  3572. 

  3573.     print("Carla ready!")

  3574. 

  3575.     while host.is_engine_running() and not gCarla.term:

  3576.         host.engine_idle()

  3577.         sleep(0.0333) # 30 Hz

  3578. 

  3579.     # --------------------------------------------------------------------------------------------------------

  3580.     # Stop

  3581. 

  3582.     host.engine_close()

  3583.     sys.exit(0)

  3584. 

  3585. # ------------------------------------------------------------------------------------------------------------