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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) 2011-2019 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. from PyQt5.Qt import PYQT_VERSION

  25. from PyQt5.QtCore import QT_VERSION, qCritical, QEventLoop, QFileInfo, QModelIndex, QPointF, QTimer, QEvent

  26. from PyQt5.QtGui import QImage, QPalette, QBrush

  27. from PyQt5.QtWidgets import QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QGraphicsView, QMainWindow

  28. 

  29. # ------------------------------------------------------------------------------------------------------------

  30. # Imports (Custom)

  31. 

  32. import ui_carla_host

  33. 

  34. from carla_app import *

  35. from carla_database import *

  36. from carla_settings import *

  37. from carla_utils import *

  38. from carla_widgets import *

  39. 

  40. from patchcanvas import patchcanvas

  41. from widgets.digitalpeakmeter import DigitalPeakMeter

  42. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  43. 

  44. # ------------------------------------------------------------------------------------------------------------

  45. # Try Import OpenGL

  46. 

  47. try:

  48.     from PyQt5.QtOpenGL import QGLWidget

  49.     hasGL = True

  50. except:

  51.     hasGL = False

  52. 

  53. # ------------------------------------------------------------------------------------------------------------

  54. # Safe exception hook, needed for PyQt5

  55. 

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

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

  58. 

  59. # ------------------------------------------------------------------------------------------------------------

  60. # Session Management support

  61. 

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

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

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

  65. 

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

  67. # Small print helper

  68. 

  69. def processMode2Str(processMode):

  70.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  71.         return "Single client"

  72.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  73.         return "Multi client"

  74.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  75.         return "Continuous Rack"

  76.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  77.         return "Patchbay"

  78.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  79.         return "Bridge"

  80.     return "Unknown"

  81. 

  82. # ------------------------------------------------------------------------------------------------------------

  83. # Carla Print class

  84. 

  85. class CarlaPrint:

  86.     def __init__(self, err):

  87.         self.err = err

  88. 

  89.     def flush(self):

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

  91. 

  92.     def write(self, string):

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

  94. 

  95. # ------------------------------------------------------------------------------------------------------------

  96. # Host Window

  97. 

  98. class HostWindow(QMainWindow):

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

  100.     # signals

  101.     SIGTERM = pyqtSignal()

  102.     SIGUSR1 = pyqtSignal()

  103. 

  104.     # CustomActions

  105.     CUSTOM_ACTION_NONE         = 0

  106.     CUSTOM_ACTION_APP_CLOSE    = 1

  107.     CUSTOM_ACTION_PROJECT_LOAD = 2

  108. 

  109.     # --------------------------------------------------------------------------------------------------------

  110. 

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

  112.         QMainWindow.__init__(self, parent)

  113.         self.host = host

  114.         self.ui = ui_carla_host.Ui_CarlaHostW()

  115.         self.ui.setupUi(self)

  116.         gCarla.gui = self

  117. 

  118.         if False:

  119.             # kdevelop likes this :)

  120.             host = CarlaHostNull()

  121.             self.host = host

  122. 

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

  124. 

  125.         self.fParentOrSelf = parent or self

  126. 

  127.         # ----------------------------------------------------------------------------------------------------

  128.         # Internal stuff

  129. 

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

  131.         self.fIdleTimerFast = 0

  132.         self.fIdleTimerSlow = 0

  133. 

  134.         self.fLadspaRdfNeedsUpdate = True

  135.         self.fLadspaRdfList = []

  136. 

  137.         self.fPluginCount = 0

  138.         self.fPluginList  = []

  139. 

  140.         self.fProjectFilename  = ""

  141.         self.fIsProjectLoading = False

  142.         self.fCurrentlyRemovingAllPlugins = False

  143. 

  144.         self.fLastTransportBPM   = 0.0

  145.         self.fLastTransportFrame = 0

  146.         self.fLastTransportState = False

  147.         self.fBufferSize         = 0

  148.         self.fSampleRate         = 0.0

  149.         self.fOscAddressTCP      = ""

  150.         self.fOscAddressUDP      = ""

  151.         self.fOscReportedHost    = ""

  152. 

  153.         if MACOS:

  154.             self.fMacClosingHelper = True

  155. 

  156.         # CancelableActionCallback Box

  157.         self.fCancelableActionBox = None

  158. 

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

  160.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  161. 

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

  163.         self.fFirstEngineInit = True

  164. 

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

  166.         self.fSavedSettings = {}

  167. 

  168.         if host.isControl:

  169.             self.fClientName         = "Carla-Control"

  170.             self.fSessionManagerName = "Control"

  171.         elif host.isPlugin:

  172.             self.fClientName         = "Carla-Plugin"

  173.             self.fSessionManagerName = "Plugin"

  174.         elif LADISH_APP_NAME:

  175.             self.fClientName         = LADISH_APP_NAME

  176.             self.fSessionManagerName = "LADISH"

  177.         elif NSM_URL and host.nsmOK:

  178.             self.fClientName         = "Carla.tmp"

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

  180.         else:

  181.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  182.             self.fSessionManagerName = ""

  183. 

  184.         # ----------------------------------------------------------------------------------------------------

  185.         # Internal stuff (patchbay)

  186. 

  187.         self.fExportImage = QImage()

  188. 

  189.         self.fPeaksCleared = True

  190. 

  191.         self.fExternalPatchbay = False

  192.         self.fSelectedPlugins  = []

  193. 

  194.         self.fCanvasWidth  = 0

  195.         self.fCanvasHeight = 0

  196.         self.fMiniCanvasUpdateTimeout = 0

  197. 

  198.         self.fWithCanvas = withCanvas

  199. 

  200.         # ----------------------------------------------------------------------------------------------------

  201.         # Set up GUI (engine stopped)

  202. 

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

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

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

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

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

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

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

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

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

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

  213. 

  214.             if self.host.isControl:

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

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

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

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

  219.             else:

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

  221. 

  222.                 if not withCanvas:

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

  224. 

  225.         else:

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

  227. 

  228.             if WINDOWS:

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

  230. 

  231.         if self.host.isControl:

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

  233.         else:

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

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

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

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

  238. 

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

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

  241. 

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

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

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

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

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

  247. 

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

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

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

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

  252. 

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

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

  255. 

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

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

  258. 

  259.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  277.             self.ui.tw_miniCanvas.hide()

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

  279.             if WINDOWS:

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

  281. 

  282.         # ----------------------------------------------------------------------------------------------------

  283.         # Set up GUI (disk)

  284. 

  285.         exts = gCarla.utils.get_supported_file_extensions()

  286. 

  287.         self.fDirModel = QFileSystemModel(self)

  288.         self.fDirModel.setRootPath(HOME)

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

  290. 

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

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

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

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

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

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

  297. 

  298.         # ----------------------------------------------------------------------------------------------------

  299.         # Set up GUI (transport)

  300. 

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

  302.         minValueWidth = fontMetrics.width("000|00|0000")

  303.         minLabelWidth = fontMetrics.width(self.ui.label_transport_frame.text())

  304. 

  305.         labelTimeWidth = fontMetrics.width(self.ui.label_transport_time.text())

  306.         labelBBTWidth  = fontMetrics.width(self.ui.label_transport_bbt.text())

  307. 

  308.         if minLabelWidth < labelTimeWidth:

  309.             minLabelWidth = labelTimeWidth

  310.         if minLabelWidth < labelBBTWidth:

  311.             minLabelWidth = labelBBTWidth

  312. 

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

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

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

  316. 

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

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

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

  320. 

  321.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  334. 

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

  336. 

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

  338.         # Set up GUI (rack)

  339. 

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

  341. 

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

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

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

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

  346. 

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

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

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

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

  351. 

  352.         self.updateStyle()

  353. 

  354.         self.ui.rack.setStyleSheet("""

  355.           CarlaRackList#CarlaRackList {

  356.             background-color: black;

  357.           }

  358.         """)

  359. 

  360.         # ----------------------------------------------------------------------------------------------------

  361.         # Set up GUI (patchbay)

  362. 

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

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

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

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

  367. 

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

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

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

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

  372. 

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

  374.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  376. 

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

  378. 

  379.         self.ui.miniCanvasPreview.setRealParent(self)

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

  381. 

  382.         # ----------------------------------------------------------------------------------------------------

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

  384. 

  385.         if MACOS:

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

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

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

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

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

  391.             self.ui.menu_Help.menuAction().setVisible(False)

  392. 

  393.         # ----------------------------------------------------------------------------------------------------

  394.         # Load Settings

  395. 

  396.         self.loadSettings(True)

  397. 

  398.         # ----------------------------------------------------------------------------------------------------

  399.         # Set-up Canvas

  400. 

  401.         if withCanvas:

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

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

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

  405. 

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

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

  408. 

  409.                 if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_FULL:

  410.                     self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, True)

  411.                     self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, True)

  412. 

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

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

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

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

  417. 

  418.             self.setupCanvas()

  419. 

  420.         # ----------------------------------------------------------------------------------------------------

  421.         # Connect actions to functions

  422. 

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

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

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

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

  427. 

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

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

  430. 

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

  432.         self.ui.act_plugin_add2.triggered.connect(self.slot_pluginAdd)

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

  434. 

  435.         self.ui.act_add_jack.triggered.connect(self.slot_jackAppAdd)

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

  437. 

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

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

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

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

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

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

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

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

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

  447.         self.ui.act_plugins_panic.triggered.connect(self.slot_pluginsDisable)

  448. 

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

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

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

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

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

  454. 

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

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

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

  458. 

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

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

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

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

  463. 

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

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

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

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

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

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

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

  471. 

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

  473. 

  474.         self.ui.listWidget.customContextMenuRequested.connect(self.showPluginActionsMenu)

  475. 

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

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

  478. 

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

  480. 

  481.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  496.             self.scene.sceneGroupMoved.connect(self.slot_canvasItemMoved)

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

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

  499. 

  500.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  501.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  502. 

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

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

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

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

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

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

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

  510. 

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

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

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

  514. 

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

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

  517. 

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

  519. 

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

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

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

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

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

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

  526.         host.PatchbayPortRenamedCallback.connect(self.slot_handlePatchbayPortRenamedCallback)

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

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

  529. 

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

  531. 

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

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

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

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

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

  537. 

  538.         # ----------------------------------------------------------------------------------------------------

  539.         # Final setup

  540. 

  541.         self.ui.text_logs.clear()

  542.         self.setProperWindowTitle()

  543. 

  544.         # Disable non-supported features

  545.         features = gCarla.utils.get_supported_features()

  546. 

  547.         if "link" not in features:

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

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

  550. 

  551.         if "juce" not in features:

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

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

  554. 

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

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

  557.             self.startTimers()

  558. 

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

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

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

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

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

  564. 

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

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

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

  568. 

  569.         # Load initial project file if set

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

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

  572. 

  573.             if projectFile:

  574.                 self.loadProjectLater(projectFile)

  575. 

  576.         # For NSM we wait for the open message

  577.         if NSM_URL and host.nsmOK:

  578.             host.nsm_ready(NSM_CALLBACK_INIT)

  579.             return

  580. 

  581.         if not host.isControl:

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

  583. 

  584.     # --------------------------------------------------------------------------------------------------------

  585.     # Setup

  586. 

  587.     def compactPlugin(self, pluginId):

  588.         if pluginId > self.fPluginCount:

  589.             return

  590. 

  591.         pitem = self.fPluginList[pluginId]

  592. 

  593.         if pitem is None:

  594.             return

  595. 

  596.         pitem.recreateWidget(True)

  597. 

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

  599.         if pluginId > self.fPluginCount:

  600.             return

  601. 

  602.         pitem = self.fPluginList[pluginId]

  603. 

  604.         if pitem is None:

  605.             return

  606. 

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

  608.         pitem.recreateWidget(newColor = color)

  609. 

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

  611.         if pluginId > self.fPluginCount:

  612.             return

  613. 

  614.         pitem = self.fPluginList[pluginId]

  615. 

  616.         if pitem is None:

  617.             return

  618. 

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

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

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

  622.         else:

  623.             pitem.recreateWidget(newSkin = skin)

  624. 

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

  626.         if pluginIdA == pluginIdB:

  627.             return

  628.         if pluginIdA < 0 or pluginIdB < 0:

  629.             return

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

  631.             return

  632. 

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

  634. 

  635.         itemA = self.fPluginList[pluginIdA]

  636.         compactA = itemA.isCompacted()

  637.         guiShownA = itemA.isGuiShown()

  638. 

  639.         itemB = self.fPluginList[pluginIdB]

  640.         compactB = itemB.isCompacted()

  641.         guiShownB = itemB.isGuiShown()

  642. 

  643.         itemA.setPluginId(pluginIdA)

  644.         itemA.recreateWidget2(compactB, guiShownB)

  645. 

  646.         itemB.setPluginId(pluginIdB)

  647.         itemB.recreateWidget2(compactA, guiShownA)

  648. 

  649.         if self.fWithCanvas:

  650.             self.slot_canvasRefresh()

  651. 

  652.     def setLoadRDFsNeeded(self):

  653.         self.fLadspaRdfNeedsUpdate = True

  654. 

  655.     def setProperWindowTitle(self):

  656.         title = self.fClientName

  657. 

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

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

  660.         if self.fSessionManagerName:

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

  662. 

  663.         self.setWindowTitle(title)

  664. 

  665.     def updateBufferSize(self, newBufferSize):

  666.         if self.fBufferSize == newBufferSize:

  667.             return

  668.         self.fBufferSize = newBufferSize

  669.         self.ui.cb_buffer_size.clear()

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

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

  672. 

  673.     def updateSampleRate(self, newSampleRate):

  674.         if self.fSampleRate == newSampleRate:

  675.             return

  676.         self.fSampleRate = newSampleRate

  677.         self.ui.cb_sample_rate.clear()

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

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

  680.         self.refreshTransport(True)

  681. 

  682.     # --------------------------------------------------------------------------------------------------------

  683.     # Files

  684. 

  685.     def makeExtraFilename(self):

  686.         return self.fProjectFilename.rsplit(".",1)[0]+".json"

  687. 

  688.     def loadProjectNow(self):

  689.         if not self.fProjectFilename:

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

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

  692.             return

  693. 

  694.         self.projectLoadingStarted()

  695.         self.fIsProjectLoading = True

  696. 

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

  698.             self.fIsProjectLoading = False

  699.             self.projectLoadingFinished()

  700. 

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

  702.                              self.host.get_last_error(),

  703.                              QMessageBox.Ok, QMessageBox.Ok)

  704. 

  705.     def loadProjectLater(self, filename):

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

  707.         self.setProperWindowTitle()

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

  709. 

  710.     def saveProjectNow(self):

  711.         if not self.fProjectFilename:

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

  713. 

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

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

  716.                              self.host.get_last_error(),

  717.                              QMessageBox.Ok, QMessageBox.Ok)

  718.             return

  719. 

  720.         if not self.fWithCanvas:

  721.             return

  722. 

  723.         with open(self.makeExtraFilename(), 'w') as fh:

  724.             json.dump({

  725.                 'canvas': patchcanvas.saveGroupPositions(),

  726.             }, fh)

  727. 

  728.     def projectLoadingStarted(self):

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

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

  731. 

  732.     def projectLoadingFinished(self):

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

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

  735. 

  736.         if not self.fWithCanvas:

  737.             return

  738. 

  739.         QTimer.singleShot(1000, self.slot_canvasRefresh)

  740. 

  741.         extrafile = self.makeExtraFilename()

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

  743.             return

  744. 

  745.         try:

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

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

  748.         except:

  749.             return

  750. 

  751.         patchcanvas.restoreGroupPositions(canvasdata)

  752. 

  753.     # --------------------------------------------------------------------------------------------------------

  754.     # Files (menu actions)

  755. 

  756.     @pyqtSlot()

  757.     def slot_fileNew(self):

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

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

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

  761.             return

  762. 

  763.         self.pluginRemoveAll()

  764.         self.fProjectFilename = ""

  765.         self.setProperWindowTitle()

  766.         self.host.clear_project_filename()

  767. 

  768.     @pyqtSlot()

  769.     def slot_fileOpen(self):

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

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

  772. 

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

  774.         if not filename:

  775.             return

  776. 

  777.         newFile = True

  778. 

  779.         if self.fPluginCount > 0:

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

  781.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  783. 

  784.         if newFile:

  785.             self.pluginRemoveAll()

  786.             self.fProjectFilename = filename

  787.             self.setProperWindowTitle()

  788.             self.loadProjectNow()

  789.         else:

  790.             filenameOld = self.fProjectFilename

  791.             self.fProjectFilename = filename

  792.             self.loadProjectNow()

  793.             self.fProjectFilename = filenameOld

  794. 

  795.     @pyqtSlot()

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

  797.         if self.fProjectFilename and not saveAs:

  798.             return self.saveProjectNow()

  799. 

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

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

  802. 

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

  804.         if not filename:

  805.             return

  806. 

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

  808.             filename += ".carxp"

  809. 

  810.         if self.fProjectFilename != filename:

  811.             self.fProjectFilename = filename

  812.             self.setProperWindowTitle()

  813. 

  814.         self.saveProjectNow()

  815. 

  816.     @pyqtSlot()

  817.     def slot_fileSaveAs(self):

  818.         self.slot_fileSave(True)

  819. 

  820.     @pyqtSlot()

  821.     def slot_loadProjectNow(self):

  822.         self.loadProjectNow()

  823. 

  824.     # --------------------------------------------------------------------------------------------------------

  825.     # Engine (menu actions)

  826. 

  827.     @pyqtSlot()

  828.     def slot_engineStart(self):

  829.         audioDriver = setEngineSettings(self.host)

  830.         firstInit   = self.fFirstEngineInit

  831. 

  832.         self.fFirstEngineInit = False

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

  834. 

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

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

  837.                 settings = QSettings()

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

  839.                 del settings

  840.                 self.host.transport_bpm(lastBpm)

  841.             return

  842. 

  843.         elif firstInit:

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

  845.             return

  846. 

  847.         audioError = self.host.get_last_error()

  848. 

  849.         if audioError:

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

  851.         else:

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

  853. 

  854.     @pyqtSlot()

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

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

  857. 

  858.         if self.fPluginCount == 0:

  859.             self.engineStopFinal()

  860.             return True

  861. 

  862.         if not forced:

  863.             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"

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

  865.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  866.             if ask != QMessageBox.Yes:

  867.                 return False

  868. 

  869.         return self.slot_engineStopTryAgain()

  870. 

  871.     @pyqtSlot()

  872.     def slot_engineStopTryAgain(self):

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

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

  875.             return False

  876. 

  877.         self.engineStopFinal()

  878.         return True

  879. 

  880.     def engineStopFinal(self):

  881.         self.killTimers()

  882. 

  883.         if self.host.is_engine_running():

  884.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  885.                 self.removeAllPlugins()

  886.             elif self.fPluginCount != 0:

  887.                 self.fCurrentlyRemovingAllPlugins = True

  888.                 self.projectLoadingStarted()

  889. 

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

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

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

  893. 

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

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

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

  897. 

  898.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  899.             self.close()

  900.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  901.             self.slot_engineStart()

  902.             self.loadProjectNow()

  903.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  904. 

  905.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  906. 

  907.     # --------------------------------------------------------------------------------------------------------

  908.     # Engine (host callbacks)

  909. 

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

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

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

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

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

  915. 

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

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

  918. 

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

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

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

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

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

  924.             self.fExternalPatchbay = False

  925.         else:

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

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

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

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

  930.             self.fExternalPatchbay = True

  931. 

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

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

  934. 

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

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

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

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

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

  940. 

  941.         if not self.host.isPlugin:

  942.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  943. 

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

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

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

  947. 

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

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

  950. 

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

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

  953. 

  954.         self.updateBufferSize(bufferSize)

  955.         self.updateSampleRate(int(sampleRate))

  956.         self.refreshRuntimeInfo(0.0, 0)

  957.         self.startTimers()

  958. 

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

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

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

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

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

  964. 

  965.     @pyqtSlot()

  966.     def slot_handleEngineStoppedCallback(self):

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

  968. 

  969.         patchcanvas.clear()

  970.         self.killTimers()

  971. 

  972.         # just in case

  973.         self.removeAllPlugins()

  974.         self.refreshRuntimeInfo(0.0, 0)

  975. 

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

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

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

  979. 

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

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

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

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

  984. 

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

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

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

  988. 

  989.     @pyqtSlot(int, str)

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

  991.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  992. 

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

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

  995. 

  996.     @pyqtSlot(int)

  997.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  998.         self.updateBufferSize(newBufferSize)

  999. 

  1000.     @pyqtSlot(float)

  1001.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1002.         self.updateSampleRate(int(newSampleRate))

  1003. 

  1004.     @pyqtSlot(int, bool, str)

  1005.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1006.         if self.fCancelableActionBox is not None:

  1007.             self.fCancelableActionBox.close()

  1008. 

  1009.         if started:

  1010.             self.fCancelableActionBox = QMessageBox(self)

  1011.             self.fCancelableActionBox.setIcon(QMessageBox.Critical)

  1012.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1013.             self.fCancelableActionBox.setText(action)

  1014.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1015.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1016.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1017.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1018.             self.fCancelableActionBox.show()

  1019. 

  1020.         else:

  1021.             self.fCancelableActionBox = None

  1022. 

  1023.     @pyqtSlot()

  1024.     def slot_canlableActionBoxClicked(self):

  1025.         self.host.cancel_engine_action()

  1026. 

  1027.     @pyqtSlot()

  1028.     def slot_handleProjectLoadFinishedCallback(self):

  1029.         self.fIsProjectLoading = False

  1030.         self.projectLoadingFinished()

  1031. 

  1032.     # --------------------------------------------------------------------------------------------------------

  1033.     # Plugins

  1034. 

  1035.     def removeAllPlugins(self):

  1036.         self.ui.act_plugin_remove_all.setEnabled(False)

  1037.         patchcanvas.handleAllPluginsRemoved()

  1038. 

  1039.         while self.ui.listWidget.takeItem(0):

  1040.             pass

  1041. 

  1042.         self.clearSideStuff()

  1043. 

  1044.         for pitem in self.fPluginList:

  1045.             if pitem is None:

  1046.                 continue

  1047. 

  1048.             pitem.close()

  1049.             del pitem

  1050. 

  1051.         self.fPluginCount = 0

  1052.         self.fPluginList  = []

  1053. 

  1054.     # --------------------------------------------------------------------------------------------------------

  1055.     # Plugins (menu actions)

  1056. 

  1057.     def showAddPluginDialog(self):

  1058.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1059. 

  1060.         if not dialog.exec_():

  1061.             return

  1062. 

  1063.         if not self.host.is_engine_running():

  1064.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1065.             return

  1066. 

  1067.         btype    = dialog.fRetPlugin['build']

  1068.         ptype    = dialog.fRetPlugin['type']

  1069.         filename = dialog.fRetPlugin['filename']

  1070.         label    = dialog.fRetPlugin['label']

  1071.         uniqueId = dialog.fRetPlugin['uniqueId']

  1072.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1073. 

  1074.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1075. 

  1076.     def showAddJackAppDialog(self):

  1077.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1078. 

  1079.         if not dialog.exec_():

  1080.             return

  1081. 

  1082.         if not self.host.is_engine_running():

  1083.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1084.             return

  1085. 

  1086.         return dialog.getCommandAndFlags()

  1087. 

  1088.     @pyqtSlot()

  1089.     def showPluginActionsMenu(self):

  1090.         menu = QMenu(self)

  1091. 

  1092.         menu.addSection("Plugins")

  1093.         menu.addAction(self.ui.act_plugin_add)

  1094.         menu.addAction(self.ui.act_plugin_remove_all)

  1095. 

  1096.         menu.addSection("All plugins (macros)")

  1097.         menu.addAction(self.ui.act_plugins_enable)

  1098.         menu.addAction(self.ui.act_plugins_disable)

  1099.         menu.addSeparator()

  1100.         menu.addAction(self.ui.act_plugins_volume100)

  1101.         menu.addAction(self.ui.act_plugins_mute)

  1102.         menu.addSeparator()

  1103.         menu.addAction(self.ui.act_plugins_wet100)

  1104.         menu.addAction(self.ui.act_plugins_bypass)

  1105.         menu.addSeparator()

  1106.         menu.addAction(self.ui.act_plugins_center)

  1107.         menu.addSeparator()

  1108.         menu.addAction(self.ui.act_plugins_compact)

  1109.         menu.addAction(self.ui.act_plugins_expand)

  1110. 

  1111.         menu.exec_(QCursor.pos())

  1112. 

  1113.     @pyqtSlot()

  1114.     def slot_pluginAdd(self):

  1115.         data = self.showAddPluginDialog()

  1116. 

  1117.         if data is None:

  1118.             return

  1119. 

  1120.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1121. 

  1122.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1123.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1124. 

  1125.     @pyqtSlot()

  1126.     def slot_confirmRemoveAll(self):

  1127.         if self.fPluginCount == 0:

  1128.             return

  1129. 

  1130.         if QMessageBox.question(self, self.tr("Remove All"),

  1131.                                       self.tr("Are you sure you want to remove all plugins?"),

  1132.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1133.             return

  1134. 

  1135.         self.pluginRemoveAll()

  1136. 

  1137.     def pluginRemoveAll(self):

  1138.         if self.fPluginCount == 0:

  1139.             return

  1140. 

  1141.         self.fCurrentlyRemovingAllPlugins = True

  1142.         self.projectLoadingStarted()

  1143. 

  1144.         if not self.host.remove_all_plugins():

  1145.             self.projectLoadingFinished()

  1146.             self.fCurrentlyRemovingAllPlugins = False

  1147.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1148.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1149. 

  1150.     @pyqtSlot()

  1151.     def slot_jackAppAdd(self):

  1152.         data = self.showAddJackAppDialog()

  1153. 

  1154.         if data is None:

  1155.             return

  1156. 

  1157.         filename, name, label = data

  1158. 

  1159.         if not filename:

  1160.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1161.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1162.             return

  1163. 

  1164.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1165.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1166.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1167. 

  1168.     # --------------------------------------------------------------------------------------------------------

  1169.     # Plugins (macros)

  1170. 

  1171.     @pyqtSlot()

  1172.     def slot_pluginsEnable(self):

  1173.         if not self.host.is_engine_running():

  1174.             return

  1175. 

  1176.         for pitem in self.fPluginList:

  1177.             if pitem is None:

  1178.                 break

  1179. 

  1180.             pitem.getWidget().setActive(True, True, True)

  1181. 

  1182.     @pyqtSlot()

  1183.     def slot_pluginsDisable(self):

  1184.         if not self.host.is_engine_running():

  1185.             return

  1186. 

  1187.         for pitem in self.fPluginList:

  1188.             if pitem is None:

  1189.                 break

  1190. 

  1191.             pitem.getWidget().setActive(False, True, True)

  1192. 

  1193.     @pyqtSlot()

  1194.     def slot_pluginsVolume100(self):

  1195.         if not self.host.is_engine_running():

  1196.             return

  1197. 

  1198.         for pitem in self.fPluginList:

  1199.             if pitem is None:

  1200.                 break

  1201. 

  1202.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1203. 

  1204.     @pyqtSlot()

  1205.     def slot_pluginsMute(self):

  1206.         if not self.host.is_engine_running():

  1207.             return

  1208. 

  1209.         for pitem in self.fPluginList:

  1210.             if pitem is None:

  1211.                 break

  1212. 

  1213.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1214. 

  1215.     @pyqtSlot()

  1216.     def slot_pluginsWet100(self):

  1217.         if not self.host.is_engine_running():

  1218.             return

  1219. 

  1220.         for pitem in self.fPluginList:

  1221.             if pitem is None:

  1222.                 break

  1223. 

  1224.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1225. 

  1226.     @pyqtSlot()

  1227.     def slot_pluginsBypass(self):

  1228.         if not self.host.is_engine_running():

  1229.             return

  1230. 

  1231.         for pitem in self.fPluginList:

  1232.             if pitem is None:

  1233.                 break

  1234. 

  1235.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1236. 

  1237.     @pyqtSlot()

  1238.     def slot_pluginsCenter(self):

  1239.         if not self.host.is_engine_running():

  1240.             return

  1241. 

  1242.         for pitem in self.fPluginList:

  1243.             if pitem is None:

  1244.                 break

  1245. 

  1246.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1247.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1248.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1249. 

  1250.     @pyqtSlot()

  1251.     def slot_pluginsCompact(self):

  1252.         for pitem in self.fPluginList:

  1253.             if pitem is None:

  1254.                 break

  1255.             pitem.compact()

  1256. 

  1257.     @pyqtSlot()

  1258.     def slot_pluginsExpand(self):

  1259.         for pitem in self.fPluginList:

  1260.             if pitem is None:

  1261.                 break

  1262.             pitem.expand()

  1263. 

  1264.     # --------------------------------------------------------------------------------------------------------

  1265.     # Plugins (host callbacks)

  1266. 

  1267.     @pyqtSlot(int, str)

  1268.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1269.         if pluginId != self.fPluginCount:

  1270.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1271.             pitem = self.getPluginItem(pluginId)

  1272.             pitem.recreateWidget()

  1273.             return

  1274. 

  1275.         pitem = self.ui.listWidget.createItem(pluginId)

  1276.         self.fPluginList.append(pitem)

  1277.         self.fPluginCount += 1

  1278. 

  1279.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1280. 

  1281.     @pyqtSlot(int)

  1282.     def slot_handlePluginRemovedCallback(self, pluginId):

  1283.         patchcanvas.handlePluginRemoved(pluginId)

  1284. 

  1285.         if pluginId in self.fSelectedPlugins:

  1286.             self.clearSideStuff()

  1287. 

  1288.         if self.fPluginCount == 0:

  1289.             return

  1290. 

  1291.         pitem = self.getPluginItem(pluginId)

  1292. 

  1293.         self.fPluginCount -= 1

  1294.         self.fPluginList.pop(pluginId)

  1295.         self.ui.listWidget.takeItem(pluginId)

  1296. 

  1297.         if pitem is not None:

  1298.             pitem.close()

  1299.             del pitem

  1300. 

  1301.         if self.fPluginCount == 0:

  1302.             self.ui.act_plugin_remove_all.setEnabled(False)

  1303.             if self.fCurrentlyRemovingAllPlugins:

  1304.                 self.fCurrentlyRemovingAllPlugins = False

  1305.                 self.projectLoadingFinished()

  1306.             return

  1307. 

  1308.         # push all plugins 1 slot back

  1309.         for i in range(pluginId, self.fPluginCount):

  1310.             pitem = self.fPluginList[i]

  1311.             pitem.setPluginId(i)

  1312. 

  1313.         self.ui.act_plugin_remove_all.setEnabled(True)

  1314. 

  1315.     # --------------------------------------------------------------------------------------------------------

  1316.     # Canvas

  1317. 

  1318.     def clearSideStuff(self):

  1319.         if self.fWithCanvas:

  1320.             self.scene.clearSelection()

  1321. 

  1322.         self.fSelectedPlugins = []

  1323. 

  1324.         self.ui.keyboard.allNotesOff(False)

  1325.         self.ui.scrollArea.setEnabled(False)

  1326. 

  1327.         self.fPeaksCleared = True

  1328.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1329.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1330.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1331.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1332. 

  1333.     def setupCanvas(self):

  1334.         pOptions = patchcanvas.options_t()

  1335.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1336.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1337.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1338.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1339.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1340.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1341. 

  1342.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1343.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1344.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1345.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1346.         else:

  1347.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1348. 

  1349.         pFeatures = patchcanvas.features_t()

  1350.         pFeatures.group_info   = False

  1351.         pFeatures.group_rename = False

  1352.         pFeatures.port_info    = False

  1353.         pFeatures.port_rename  = False

  1354.         pFeatures.handle_group_pos = True

  1355. 

  1356.         patchcanvas.setOptions(pOptions)

  1357.         patchcanvas.setFeatures(pFeatures)

  1358.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1359. 

  1360.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1361. 

  1362.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1363.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1364.             self.fCanvasHeight = int(tryCanvasSize[1])

  1365.         else:

  1366.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1367.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1368. 

  1369.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1370.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1371.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1372. 

  1373.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1374.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1375. 

  1376.     def updateCanvasInitialPos(self):

  1377.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1378.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1379.         patchcanvas.setInitialPos(x, y)

  1380. 

  1381.     def updateMiniCanvasLater(self):

  1382.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1383. 

  1384.     # --------------------------------------------------------------------------------------------------------

  1385.     # Canvas (menu actions)

  1386. 

  1387.     @pyqtSlot()

  1388.     def slot_canvasShowInternal(self):

  1389.         self.fExternalPatchbay = False

  1390.         self.ui.act_canvas_show_internal.blockSignals(True)

  1391.         self.ui.act_canvas_show_external.blockSignals(True)

  1392.         self.ui.act_canvas_show_internal.setChecked(True)

  1393.         self.ui.act_canvas_show_external.setChecked(False)

  1394.         self.ui.act_canvas_show_internal.blockSignals(False)

  1395.         self.ui.act_canvas_show_external.blockSignals(False)

  1396.         self.slot_canvasRefresh()

  1397. 

  1398.     @pyqtSlot()

  1399.     def slot_canvasShowExternal(self):

  1400.         self.fExternalPatchbay = True

  1401.         self.ui.act_canvas_show_internal.blockSignals(True)

  1402.         self.ui.act_canvas_show_external.blockSignals(True)

  1403.         self.ui.act_canvas_show_internal.setChecked(False)

  1404.         self.ui.act_canvas_show_external.setChecked(True)

  1405.         self.ui.act_canvas_show_internal.blockSignals(False)

  1406.         self.ui.act_canvas_show_external.blockSignals(False)

  1407.         self.slot_canvasRefresh()

  1408. 

  1409.     @pyqtSlot()

  1410.     def slot_canvasArrange(self):

  1411.         patchcanvas.arrange()

  1412. 

  1413.     @pyqtSlot()

  1414.     def slot_canvasRefresh(self):

  1415.         patchcanvas.clear()

  1416. 

  1417.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1418.             return

  1419. 

  1420.         if self.host.is_engine_running():

  1421.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1422. 

  1423.         self.updateMiniCanvasLater()

  1424. 

  1425.     @pyqtSlot()

  1426.     def slot_canvasZoomFit(self):

  1427.         self.scene.zoom_fit()

  1428. 

  1429.     @pyqtSlot()

  1430.     def slot_canvasZoomIn(self):

  1431.         self.scene.zoom_in()

  1432. 

  1433.     @pyqtSlot()

  1434.     def slot_canvasZoomOut(self):

  1435.         self.scene.zoom_out()

  1436. 

  1437.     @pyqtSlot()

  1438.     def slot_canvasZoomReset(self):

  1439.         self.scene.zoom_reset()

  1440. 

  1441.     @pyqtSlot()

  1442.     def slot_canvasSaveImage(self):

  1443.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1444. 

  1445.         # FIXME use ok value, test if it works as expected

  1446.         if not newPath:

  1447.             return

  1448. 

  1449.         self.scene.clearSelection()

  1450. 

  1451.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1452.             imgFormat = "JPG"

  1453.         elif newPath.lower().endswith((".png",)):

  1454.             imgFormat = "PNG"

  1455.         else:

  1456.             # File-dialog may not auto-add the extension

  1457.             imgFormat = "PNG"

  1458.             newPath  += ".png"

  1459. 

  1460.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1461.         painter = QPainter(self.fExportImage)

  1462.         painter.save()

  1463.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1464.         painter.setRenderHint(QPainter.TextAntialiasing)

  1465.         self.scene.render(painter)

  1466.         self.fExportImage.save(newPath, imgFormat, 100)

  1467.         painter.restore()

  1468. 

  1469.     # --------------------------------------------------------------------------------------------------------

  1470.     # Canvas (canvas callbacks)

  1471. 

  1472.     @pyqtSlot(int, int, QPointF)

  1473.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1474.         self.updateMiniCanvasLater()

  1475. 

  1476.     @pyqtSlot()

  1477.     def slot_canvasSelectionChanged(self):

  1478.         self.updateMiniCanvasLater()

  1479. 

  1480.     @pyqtSlot(float)

  1481.     def slot_canvasScaleChanged(self, scale):

  1482.         self.ui.miniCanvasPreview.setViewScale(scale)

  1483. 

  1484.     @pyqtSlot(list)

  1485.     def slot_canvasPluginSelected(self, pluginList):

  1486.         self.ui.keyboard.allNotesOff(False)

  1487.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1488.         self.fSelectedPlugins = pluginList

  1489. 

  1490.     # --------------------------------------------------------------------------------------------------------

  1491.     # Canvas (host callbacks)

  1492. 

  1493.     @pyqtSlot(int, int, int, str)

  1494.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1495.         pcSplit = patchcanvas.SPLIT_UNDEF

  1496.         pcIcon  = patchcanvas.ICON_APPLICATION

  1497. 

  1498.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1499.             pcIcon = patchcanvas.ICON_PLUGIN

  1500.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1501.             pcIcon = patchcanvas.ICON_HARDWARE

  1502.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1503.             pass

  1504.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1505.             pcIcon = patchcanvas.ICON_DISTRHO

  1506.         elif clientIcon == PATCHBAY_ICON_FILE:

  1507.             pcIcon = patchcanvas.ICON_FILE

  1508. 

  1509.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1510. 

  1511.         self.updateMiniCanvasLater()

  1512. 

  1513.         if pluginId < 0:

  1514.             return

  1515.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1516.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1517.             return

  1518. 

  1519.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1520.             hasCustomUI = False

  1521.             hasInlineDisplay = False

  1522.         else:

  1523.             hints = self.host.get_plugin_info(pluginId)['hints']

  1524.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1525.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1526. 

  1527.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1528. 

  1529.     @pyqtSlot(int)

  1530.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1531.         patchcanvas.removeGroup(clientId)

  1532.         self.updateMiniCanvasLater()

  1533. 

  1534.     @pyqtSlot(int, str)

  1535.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1536.         patchcanvas.renameGroup(clientId, newClientName)

  1537.         self.updateMiniCanvasLater()

  1538. 

  1539.     @pyqtSlot(int, int, int)

  1540.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1541.         pcIcon = patchcanvas.ICON_APPLICATION

  1542. 

  1543.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1544.             pcIcon = patchcanvas.ICON_PLUGIN

  1545.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1546.             pcIcon = patchcanvas.ICON_HARDWARE

  1547.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1548.             pass

  1549.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1550.             pcIcon = patchcanvas.ICON_DISTRHO

  1551.         elif clientIcon == PATCHBAY_ICON_FILE:

  1552.             pcIcon = patchcanvas.ICON_FILE

  1553. 

  1554.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1555.         self.updateMiniCanvasLater()

  1556. 

  1557.         if pluginId < 0:

  1558.             return

  1559.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1560.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1561.             return

  1562. 

  1563.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1564.             hasCustomUI = False

  1565.             hasInlineDisplay = False

  1566.         else:

  1567.             hints = self.host.get_plugin_info(pluginId)['hints']

  1568.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1569.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1570. 

  1571.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1572. 

  1573.     @pyqtSlot(int, int, int, str)

  1574.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1575.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1576.             portMode = patchcanvas.PORT_MODE_INPUT

  1577.         else:

  1578.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1579. 

  1580.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1581.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1582.             isAlternate = False

  1583.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1584.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1585.             isAlternate = True

  1586.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1587.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1588.             isAlternate = False

  1589.         else:

  1590.             portType    = patchcanvas.PORT_TYPE_NULL

  1591.             isAlternate = False

  1592. 

  1593.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1594.         self.updateMiniCanvasLater()

  1595. 

  1596.     @pyqtSlot(int, int)

  1597.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1598.         patchcanvas.removePort(groupId, portId)

  1599.         self.updateMiniCanvasLater()

  1600. 

  1601.     @pyqtSlot(int, int, str)

  1602.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1603.         patchcanvas.renamePort(groupId, portId, newPortName)

  1604.         self.updateMiniCanvasLater()

  1605. 

  1606.     @pyqtSlot(int, int, int, int, int)

  1607.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1608.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1609.         self.updateMiniCanvasLater()

  1610. 

  1611.     @pyqtSlot(int, int, int)

  1612.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1613.         patchcanvas.disconnectPorts(connectionId)

  1614.         self.updateMiniCanvasLater()

  1615. 

  1616.     # --------------------------------------------------------------------------------------------------------

  1617.     # Settings

  1618. 

  1619.     def saveSettings(self):

  1620.         settings = QSettings()

  1621. 

  1622.         settings.setValue("Geometry", self.saveGeometry())

  1623.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1624. 

  1625.         if not self.host.isControl:

  1626.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1627. 

  1628.         diskFolders = []

  1629. 

  1630.         for i in range(self.ui.cb_disk.count()):

  1631.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1632. 

  1633.         settings.setValue("DiskFolders", diskFolders)

  1634.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1635. 

  1636.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1637.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1638.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1639.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1640. 

  1641.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1642.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1643. 

  1644.         return settings

  1645. 

  1646.     def loadSettings(self, firstTime):

  1647.         settings = QSettings()

  1648. 

  1649.         if firstTime:

  1650.             self.restoreGeometry(settings.value("Geometry", b""))

  1651. 

  1652.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1653.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1654.             self.ui.toolBar.setEnabled(showToolbar)

  1655.             self.ui.toolBar.setVisible(showToolbar)

  1656. 

  1657.             #if settings.contains("SplitterState"):

  1658.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1659.             #else:

  1660.                 #self.ui.splitter.setSizes([210, 99999])

  1661. 

  1662.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1663.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1664.             self.slot_showSidePanel(showSidePanel)

  1665. 

  1666.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1667. 

  1668.             self.ui.cb_disk.setItemData(0, HOME)

  1669. 

  1670.             for i in range(len(diskFolders)):

  1671.                 if i == 0: continue

  1672.                 folder = diskFolders[i]

  1673.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1674. 

  1675.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1676.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1677. 

  1678.             showMeters = settings.value("ShowMeters", True, type=bool)

  1679.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1680.             self.ui.peak_in.setVisible(showMeters)

  1681.             self.ui.peak_out.setVisible(showMeters)

  1682. 

  1683.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1684.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1685.             self.ui.scrollArea.setVisible(showKeyboard)

  1686. 

  1687.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1688. 

  1689.         # TODO - complete this

  1690. 

  1691.         self.fSavedSettings = {

  1692.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1693.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1694.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1695.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1696.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1697.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1698.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1699.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1700.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1701.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1702.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1703.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1704.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1705.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1706.             CARLA_KEY_CANVAS_INLINE_DISPLAYS:   settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS,   CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS,   type=bool),

  1707.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1708.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1709.         }

  1710. 

  1711.         settings2 = QSettings("falkTX", "Carla2")

  1712. 

  1713.         if self.host.experimental:

  1714.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1715.             self.ui.act_add_jack.setVisible(visible)

  1716.             self.ui.act_plugin_add_jack.setVisible(visible)

  1717.         else:

  1718.             self.ui.act_add_jack.setVisible(False)

  1719.             self.ui.act_plugin_add_jack.setVisible(False)

  1720. 

  1721.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1722. 

  1723.         setEngineSettings(self.host)

  1724.         self.restartTimersIfNeeded()

  1725. 

  1726.         return settings

  1727. 

  1728.     # --------------------------------------------------------------------------------------------------------

  1729.     # Settings (helpers)

  1730. 

  1731.     def enableTransport(self, enabled):

  1732.         self.ui.group_transport_controls.setEnabled(enabled)

  1733.         self.ui.group_transport_settings.setEnabled(enabled)

  1734. 

  1735.     @pyqtSlot()

  1736.     def slot_restoreCanvasScrollbarValues(self):

  1737.         settings = QSettings()

  1738.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1739.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1740. 

  1741.     # --------------------------------------------------------------------------------------------------------

  1742.     # Settings (menu actions)

  1743. 

  1744.     @pyqtSlot(bool)

  1745.     def slot_showSidePanel(self, yesNo):

  1746.         self.ui.dockWidget.setEnabled(yesNo)

  1747.         self.ui.dockWidget.setVisible(yesNo)

  1748. 

  1749.     @pyqtSlot(bool)

  1750.     def slot_showToolbar(self, yesNo):

  1751.         self.ui.toolBar.setEnabled(yesNo)

  1752.         self.ui.toolBar.setVisible(yesNo)

  1753. 

  1754.     @pyqtSlot(bool)

  1755.     def slot_showCanvasMeters(self, yesNo):

  1756.         self.ui.peak_in.setVisible(yesNo)

  1757.         self.ui.peak_out.setVisible(yesNo)

  1758.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1759. 

  1760.     @pyqtSlot(bool)

  1761.     def slot_showCanvasKeyboard(self, yesNo):

  1762.         self.ui.scrollArea.setVisible(yesNo)

  1763.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1764. 

  1765.     @pyqtSlot()

  1766.     def slot_configureCarla(self):

  1767.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1768.         if not dialog.exec_():

  1769.             return

  1770. 

  1771.         self.loadSettings(False)

  1772. 

  1773.         patchcanvas.clear()

  1774. 

  1775.         self.setupCanvas()

  1776.         self.slot_miniCanvasCheckAll()

  1777. 

  1778.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1779.             pass

  1780.         elif self.host.is_engine_running():

  1781.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1782. 

  1783.     # --------------------------------------------------------------------------------------------------------

  1784.     # About (menu actions)

  1785. 

  1786.     @pyqtSlot()

  1787.     def slot_aboutCarla(self):

  1788.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1789. 

  1790.     @pyqtSlot()

  1791.     def slot_aboutJuce(self):

  1792.         JuceAboutW(self.fParentOrSelf).exec_()

  1793. 

  1794.     @pyqtSlot()

  1795.     def slot_aboutQt(self):

  1796.         QApplication.instance().aboutQt()

  1797. 

  1798.     # --------------------------------------------------------------------------------------------------------

  1799.     # Disk (menu actions)

  1800. 

  1801.     @pyqtSlot(int)

  1802.     def slot_diskFolderChanged(self, index):

  1803.         if index < 0:

  1804.             return

  1805.         elif index == 0:

  1806.             filename = HOME

  1807.             self.ui.b_disk_remove.setEnabled(False)

  1808.         else:

  1809.             filename = self.ui.cb_disk.itemData(index)

  1810.             self.ui.b_disk_remove.setEnabled(True)

  1811. 

  1812.         self.fDirModel.setRootPath(filename)

  1813.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1814. 

  1815.     @pyqtSlot()

  1816.     def slot_diskFolderAdd(self):

  1817.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1818. 

  1819.         if newPath:

  1820.             if newPath[-1] == os.sep:

  1821.                 newPath = newPath[:-1]

  1822.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1823.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1824.             self.ui.b_disk_remove.setEnabled(True)

  1825. 

  1826.     @pyqtSlot()

  1827.     def slot_diskFolderRemove(self):

  1828.         index = self.ui.cb_disk.currentIndex()

  1829. 

  1830.         if index <= 0:

  1831.             return

  1832. 

  1833.         self.ui.cb_disk.removeItem(index)

  1834. 

  1835.         if self.ui.cb_disk.currentIndex() == 0:

  1836.             self.ui.b_disk_remove.setEnabled(False)

  1837. 

  1838.     @pyqtSlot(QModelIndex)

  1839.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1840.         filename = self.fDirModel.filePath(modelIndex)

  1841. 

  1842.         if not self.ui.listWidget.isDragUrlValid(filename):

  1843.             return

  1844. 

  1845.         if not self.host.load_file(filename):

  1846.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1847.                              self.tr("Failed to load file"),

  1848.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1849. 

  1850.     # --------------------------------------------------------------------------------------------------------

  1851.     # Transport

  1852. 

  1853.     def refreshTransport(self, forced = False):

  1854.         if not self.ui.l_transport_time.isVisible():

  1855.             return

  1856.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1857.             return

  1858. 

  1859.         timeInfo = self.host.get_transport_info()

  1860.         playing  = timeInfo['playing']

  1861.         frame    = timeInfo['frame']

  1862.         bpm      = timeInfo['bpm']

  1863. 

  1864.         if playing != self.fLastTransportState or forced:

  1865.             if playing:

  1866.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1867.                 self.ui.b_transport_play.setChecked(True)

  1868.                 self.ui.b_transport_play.setIcon(icon)

  1869.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1870.             else:

  1871.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1872.                 self.ui.b_transport_play.setChecked(False)

  1873.                 self.ui.b_transport_play.setIcon(icon)

  1874.                 #self.ui.b_play.setText(self.tr("&Play"))

  1875. 

  1876.             self.fLastTransportState = playing

  1877. 

  1878.         if frame != self.fLastTransportFrame or forced:

  1879.             self.fLastTransportFrame = frame

  1880. 

  1881.             time = frame / self.fSampleRate

  1882.             secs =  time % 60

  1883.             mins = (time / 60) % 60

  1884.             hrs  = (time / 3600) % 60

  1885.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1886. 

  1887.             frame1 =  frame % 1000

  1888.             frame2 = (frame / 1000) % 1000

  1889.             frame3 = (frame / 1000000) % 1000

  1890.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1891. 

  1892.             bar  = timeInfo['bar']

  1893.             beat = timeInfo['beat']

  1894.             tick = timeInfo['tick']

  1895.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1896. 

  1897.         if bpm != self.fLastTransportBPM or forced:

  1898.             self.fLastTransportBPM = bpm

  1899. 

  1900.             if bpm > 0.0:

  1901.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1902.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1903.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1904.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1905.             else:

  1906.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1907. 

  1908.     # --------------------------------------------------------------------------------------------------------

  1909.     # Transport (menu actions)

  1910. 

  1911.     @pyqtSlot(bool)

  1912.     def slot_transportPlayPause(self, toggled):

  1913.         if self.host.isPlugin or not self.host.is_engine_running():

  1914.             return

  1915. 

  1916.         if toggled:

  1917.             self.host.transport_play()

  1918.         else:

  1919.             self.host.transport_pause()

  1920. 

  1921.         self.refreshTransport()

  1922. 

  1923.     @pyqtSlot()

  1924.     def slot_transportStop(self):

  1925.         if self.host.isPlugin or not self.host.is_engine_running():

  1926.             return

  1927. 

  1928.         self.host.transport_pause()

  1929.         self.host.transport_relocate(0)

  1930. 

  1931.         self.refreshTransport()

  1932. 

  1933.     @pyqtSlot()

  1934.     def slot_transportBackwards(self):

  1935.         if self.host.isPlugin or not self.host.is_engine_running():

  1936.             return

  1937. 

  1938.         newFrame = self.host.get_current_transport_frame() - 100000

  1939. 

  1940.         if newFrame < 0:

  1941.             newFrame = 0

  1942. 

  1943.         self.host.transport_relocate(newFrame)

  1944. 

  1945.     @pyqtSlot(float)

  1946.     def slot_transportBpmChanged(self, newValue):

  1947.         self.host.transport_bpm(newValue)

  1948. 

  1949.     @pyqtSlot()

  1950.     def slot_transportForwards(self):

  1951.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1952.             return

  1953. 

  1954.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1955.         self.host.transport_relocate(newFrame)

  1956. 

  1957.     @pyqtSlot(bool)

  1958.     def slot_transportJackEnabled(self, clicked):

  1959.         if not self.host.is_engine_running():

  1960.             return

  1961.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1962.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1963.                                     self.host.transportMode,

  1964.                                     self.host.transportExtra)

  1965. 

  1966.     @pyqtSlot(bool)

  1967.     def slot_transportLinkEnabled(self, clicked):

  1968.         if not self.host.is_engine_running():

  1969.             return

  1970.         extra = ":link:" if clicked else ""

  1971.         self.host.transportExtra = extra

  1972.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1973.                                     self.host.transportMode,

  1974.                                     self.host.transportExtra)

  1975. 

  1976.     # --------------------------------------------------------------------------------------------------------

  1977.     # Other

  1978. 

  1979.     @pyqtSlot(bool)

  1980.     def slot_xrunClear(self):

  1981.         self.host.clear_engine_xruns()

  1982. 

  1983.     # --------------------------------------------------------------------------------------------------------

  1984.     # Canvas scrollbars

  1985. 

  1986.     @pyqtSlot(int)

  1987.     def slot_horizontalScrollBarChanged(self, value):

  1988.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1989.         if maximum == 0:

  1990.             xp = 0

  1991.         else:

  1992.             xp = float(value) / maximum

  1993.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1994.         self.updateCanvasInitialPos()

  1995. 

  1996.     @pyqtSlot(int)

  1997.     def slot_verticalScrollBarChanged(self, value):

  1998.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1999.         if maximum == 0:

  2000.             yp = 0

  2001.         else:

  2002.             yp = float(value) / maximum

  2003.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2004.         self.updateCanvasInitialPos()

  2005. 

  2006.     # --------------------------------------------------------------------------------------------------------

  2007.     # Canvas keyboard

  2008. 

  2009.     @pyqtSlot(int)

  2010.     def slot_noteOn(self, note):

  2011.         for pluginId in self.fSelectedPlugins:

  2012.             self.host.send_midi_note(pluginId, 0, note, 100)

  2013. 

  2014.             pedit = self.getPluginEditDialog(pluginId)

  2015.             pedit.noteOn(0, note, 100)

  2016. 

  2017.     @pyqtSlot(int)

  2018.     def slot_noteOff(self, note):

  2019.         for pluginId in self.fSelectedPlugins:

  2020.             self.host.send_midi_note(pluginId, 0, note, 0)

  2021. 

  2022.             pedit = self.getPluginEditDialog(pluginId)

  2023.             pedit.noteOff(0, note)

  2024. 

  2025.     # --------------------------------------------------------------------------------------------------------

  2026.     # Canvas keyboard (host callbacks)

  2027. 

  2028.     @pyqtSlot(int, int, int, int)

  2029.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2030.         if pluginId in self.fSelectedPlugins:

  2031.             self.ui.keyboard.sendNoteOn(note, False)

  2032. 

  2033.     @pyqtSlot(int, int, int)

  2034.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2035.         if pluginId in self.fSelectedPlugins:

  2036.             self.ui.keyboard.sendNoteOff(note, False)

  2037. 

  2038.     # --------------------------------------------------------------------------------------------------------

  2039. 

  2040.     @pyqtSlot(int)

  2041.     def slot_handleUpdateCallback(self, pluginId):

  2042.         pitem = self.getPluginItem(pluginId)

  2043. 

  2044.         if pitem is None:

  2045.             return

  2046. 

  2047.         wasCompacted = pitem.isCompacted()

  2048.         isCompacted  = wasCompacted

  2049. 

  2050.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2051.         if not check:

  2052.             return

  2053.         isCompacted = bool(check == "true")

  2054. 

  2055.         if wasCompacted == isCompacted:

  2056.             return

  2057. 

  2058.         pitem.recreateWidget(True)

  2059. 

  2060.     # --------------------------------------------------------------------------------------------------------

  2061.     # MiniCanvas stuff

  2062. 

  2063.     @pyqtSlot()

  2064.     def slot_miniCanvasCheckAll(self):

  2065.         self.slot_miniCanvasCheckSize()

  2066.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2067.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2068. 

  2069.     @pyqtSlot()

  2070.     def slot_miniCanvasCheckSize(self):

  2071.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2072.             return

  2073. 

  2074.         currentIndex = self.ui.tabWidget.currentIndex()

  2075. 

  2076.         if currentIndex == 1:

  2077.             width  = self.ui.graphicsView.width()

  2078.             height = self.ui.graphicsView.height()

  2079.         else:

  2080.             self.ui.tabWidget.blockSignals(True)

  2081.             self.ui.tabWidget.setCurrentIndex(1)

  2082.             width  = self.ui.graphicsView.width()

  2083.             height = self.ui.graphicsView.height()

  2084.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2085.             self.ui.tabWidget.blockSignals(False)

  2086. 

  2087.         self.scene.updateLimits()

  2088. 

  2089.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2090. 

  2091.     @pyqtSlot(float, float)

  2092.     def slot_miniCanvasMoved(self, xp, yp):

  2093.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2094.         vsb = self.ui.graphicsView.verticalScrollBar()

  2095.         hsb.setValue(xp * hsb.maximum())

  2096.         vsb.setValue(yp * vsb.maximum())

  2097.         self.updateCanvasInitialPos()

  2098. 

  2099.     # --------------------------------------------------------------------------------------------------------

  2100.     # Timers

  2101. 

  2102.     def startTimers(self):

  2103.         if self.fIdleTimerFast == 0:

  2104.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2105. 

  2106.         if self.fIdleTimerSlow == 0:

  2107.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2108. 

  2109.     def restartTimersIfNeeded(self):

  2110.         if self.fIdleTimerFast != 0:

  2111.             self.killTimer(self.fIdleTimerFast)

  2112.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2113. 

  2114.         if self.fIdleTimerSlow != 0:

  2115.             self.killTimer(self.fIdleTimerSlow)

  2116.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2117. 

  2118.     def killTimers(self):

  2119.         if self.fIdleTimerFast != 0:

  2120.             self.killTimer(self.fIdleTimerFast)

  2121.             self.fIdleTimerFast = 0

  2122. 

  2123.         if self.fIdleTimerSlow != 0:

  2124.             self.killTimer(self.fIdleTimerSlow)

  2125.             self.fIdleTimerSlow = 0

  2126. 

  2127.     # --------------------------------------------------------------------------------------------------------

  2128.     # Misc

  2129. 

  2130.     @pyqtSlot(int)

  2131.     def slot_tabChanged(self, index):

  2132.         if index != 1:

  2133.             return

  2134. 

  2135.         self.ui.graphicsView.setFocus()

  2136. 

  2137.     @pyqtSlot(int)

  2138.     def slot_handleReloadAllCallback(self, pluginId):

  2139.         if pluginId >= self.fPluginCount:

  2140.             return

  2141. 

  2142.         pitem = self.fPluginList[pluginId]

  2143.         if pitem is None:

  2144.             return

  2145. 

  2146.         pitem.recreateWidget()

  2147. 

  2148.     # --------------------------------------------------------------------------------------------------------

  2149. 

  2150.     @pyqtSlot(int, int, str)

  2151.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2152.         if opcode == NSM_CALLBACK_INIT:

  2153.             return

  2154. 

  2155.         # Error

  2156.         elif opcode == NSM_CALLBACK_ERROR:

  2157.             pass

  2158. 

  2159.         # Reply

  2160.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2161.             self.fFirstEngineInit    = False

  2162.             self.fSessionManagerName = valueStr

  2163.             self.setProperWindowTitle()

  2164. 

  2165.         # Open

  2166.         elif opcode == NSM_CALLBACK_OPEN:

  2167.             self.fClientName      = os.path.basename(valueStr)

  2168.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2169.             self.setProperWindowTitle()

  2170. 

  2171.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2172.             self.slot_engineStop(True)

  2173.             return

  2174. 

  2175.         # Save

  2176.         elif opcode == NSM_CALLBACK_SAVE:

  2177.             self.saveProjectNow()

  2178. 

  2179.         # Session is Loaded

  2180.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2181.             pass

  2182. 

  2183.         # Show Optional Gui

  2184.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2185.             self.show()

  2186. 

  2187.         # Hide Optional Gui

  2188.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2189.             self.hide()

  2190. 

  2191.         self.host.nsm_ready(opcode)

  2192. 

  2193.     # --------------------------------------------------------------------------------------------------------

  2194. 

  2195.     def fixLogText(self, text):

  2196.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2197. 

  2198.     @pyqtSlot(int, int, int, int, float, str)

  2199.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2200.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2201. 

  2202.     @pyqtSlot(str)

  2203.     def slot_handleInfoCallback(self, info):

  2204.         QMessageBox.information(self, "Information", info)

  2205. 

  2206.     @pyqtSlot(str)

  2207.     def slot_handleErrorCallback(self, error):

  2208.         QMessageBox.critical(self, "Error", error)

  2209. 

  2210.     @pyqtSlot()

  2211.     def slot_handleQuitCallback(self):

  2212.         self.fIsProjectLoading = False

  2213.         self.killTimers()

  2214.         self.removeAllPlugins()

  2215.         self.projectLoadingFinished()

  2216. 

  2217.     @pyqtSlot(int)

  2218.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2219.         # FIXME

  2220.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2221.             patchcanvas.redrawPluginGroup(pluginId)

  2222. 

  2223.     # --------------------------------------------------------------------------------------------------------

  2224. 

  2225.     @pyqtSlot()

  2226.     def slot_handleSIGUSR1(self):

  2227.         print("Got SIGUSR1 -> Saving project now")

  2228.         self.slot_fileSave()

  2229. 

  2230.     @pyqtSlot()

  2231.     def slot_handleSIGTERM(self):

  2232.         print("Got SIGTERM -> Closing now")

  2233.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2234.         self.slot_engineStop(True)

  2235. 

  2236.     # --------------------------------------------------------------------------------------------------------

  2237.     # Internal stuff

  2238. 

  2239.     def getExtraPtr(self, plugin):

  2240.         ptype = plugin['type']

  2241. 

  2242.         if ptype == PLUGIN_LADSPA:

  2243.             uniqueId = plugin['uniqueId']

  2244. 

  2245.             self.maybeLoadRDFs()

  2246. 

  2247.             for rdfItem in self.fLadspaRdfList:

  2248.                 if rdfItem.UniqueID == uniqueId:

  2249.                     return pointer(rdfItem)

  2250. 

  2251.         elif ptype == PLUGIN_SF2:

  2252.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2253.                 return self._true

  2254. 

  2255.         return None

  2256. 

  2257.     def maybeLoadRDFs(self):

  2258.         if not self.fLadspaRdfNeedsUpdate:

  2259.             return

  2260. 

  2261.         self.fLadspaRdfNeedsUpdate = False

  2262.         self.fLadspaRdfList = []

  2263. 

  2264.         if not haveLRDF:

  2265.             return

  2266. 

  2267.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2268.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2269. 

  2270.         if os.path.exists(frLadspaFile):

  2271.             frLadspa = open(frLadspaFile, 'r')

  2272. 

  2273.             try:

  2274.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2275.             except:

  2276.                 pass

  2277. 

  2278.             frLadspa.close()

  2279. 

  2280.     # --------------------------------------------------------------------------------------------------------

  2281. 

  2282.     def getPluginCount(self):

  2283.         return self.fPluginCount

  2284. 

  2285.     def getPluginItem(self, pluginId):

  2286.         if pluginId >= self.fPluginCount:

  2287.             return None

  2288. 

  2289.         pitem = self.fPluginList[pluginId]

  2290.         if pitem is None:

  2291.             return None

  2292.         #if False:

  2293.             #return CarlaRackItem(self, 0, False)

  2294. 

  2295.         return pitem

  2296. 

  2297.     def getPluginEditDialog(self, pluginId):

  2298.         if pluginId >= self.fPluginCount:

  2299.             return None

  2300. 

  2301.         pitem = self.fPluginList[pluginId]

  2302.         if pitem is None:

  2303.             return None

  2304.         if False:

  2305.             return PluginEdit(self, self.host, 0)

  2306. 

  2307.         return pitem.getEditDialog()

  2308. 

  2309.     def getPluginSlotWidget(self, pluginId):

  2310.         if pluginId >= self.fPluginCount:

  2311.             return None

  2312. 

  2313.         pitem = self.fPluginList[pluginId]

  2314.         if pitem is None:

  2315.             return None

  2316.         #if False:

  2317.             #return AbstractPluginSlot()

  2318. 

  2319.         return pitem.getWidget()

  2320. 

  2321.     # --------------------------------------------------------------------------------------------------------

  2322. 

  2323.     def waitForPendingEvents(self):

  2324.         pass

  2325. 

  2326.     # --------------------------------------------------------------------------------------------------------

  2327.     # show/hide event

  2328. 

  2329.     def showEvent(self, event):

  2330.         self.getAndRefreshRuntimeInfo()

  2331.         self.refreshTransport(True)

  2332.         QMainWindow.showEvent(self, event)

  2333. 

  2334.         if QT_VERSION >= 0x50600:

  2335.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2336. 

  2337.         # set our gui as parent for all plugins UIs

  2338.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2339.             if MACOS:

  2340.                 nsViewPtr = int(self.winId())

  2341.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2342.             else:

  2343.                 winIdStr = "%x" % int(self.winId())

  2344.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2345. 

  2346.     def hideEvent(self, event):

  2347.         # disable parent

  2348.         if not (self.host.isControl or self.host.isPlugin):

  2349.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2350. 

  2351.         QMainWindow.hideEvent(self, event)

  2352. 

  2353.     # --------------------------------------------------------------------------------------------------------

  2354.     # resize event

  2355. 

  2356.     def resizeEvent(self, event):

  2357.         QMainWindow.resizeEvent(self, event)

  2358. 

  2359.         if self.fWithCanvas:

  2360.             self.slot_miniCanvasCheckSize()

  2361. 

  2362.     # --------------------------------------------------------------------------------------------------------

  2363.     # timer event

  2364. 

  2365.     def refreshRuntimeInfo(self, load, xruns):

  2366.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2367.         txt2 = "" if (xruns == 1) else "s"

  2368.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2369.         self.ui.pb_dsp_load.setValue(int(load))

  2370. 

  2371.     def getAndRefreshRuntimeInfo(self):

  2372.         if not self.ui.pb_dsp_load.isVisible():

  2373.             return

  2374.         if not self.host.is_engine_running():

  2375.             return

  2376.         info = self.host.get_runtime_engine_info()

  2377.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2378. 

  2379.     def idleFast(self):

  2380.         self.host.engine_idle()

  2381.         self.refreshTransport()

  2382. 

  2383.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2384.             return

  2385. 

  2386.         for pitem in self.fPluginList:

  2387.             if pitem is None:

  2388.                 break

  2389. 

  2390.             pitem.getWidget().idleFast()

  2391. 

  2392.         for pluginId in self.fSelectedPlugins:

  2393.             self.fPeaksCleared = False

  2394.             if self.ui.peak_in.isVisible():

  2395.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2396.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2397.             if self.ui.peak_out.isVisible():

  2398.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2399.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2400.             return

  2401. 

  2402.         if self.fPeaksCleared:

  2403.             return

  2404. 

  2405.         self.fPeaksCleared = True

  2406.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2407.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2408.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2409.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2410. 

  2411.     def idleSlow(self):

  2412.         self.getAndRefreshRuntimeInfo()

  2413. 

  2414.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2415.             return

  2416. 

  2417.         for pitem in self.fPluginList:

  2418.             if pitem is None:

  2419.                 break

  2420. 

  2421.             pitem.getWidget().idleSlow()

  2422. 

  2423.     def timerEvent(self, event):

  2424.         if event.timerId() == self.fIdleTimerFast:

  2425.             self.idleFast()

  2426. 

  2427.         elif event.timerId() == self.fIdleTimerSlow:

  2428.             self.idleSlow()

  2429. 

  2430.         QMainWindow.timerEvent(self, event)

  2431. 

  2432.     # --------------------------------------------------------------------------------------------------------

  2433.     # color/style change event

  2434. 

  2435.     def changeEvent(self, event):

  2436.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2437.             self.updateStyle()

  2438.         QWidget.changeEvent(self, event)

  2439. 

  2440.     def updateStyle(self):

  2441.         # Rack padding images setup

  2442.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2443.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2444. 

  2445.         min_value = 0.07

  2446. 

  2447.         if PYQT_VERSION >= 0x50600:

  2448.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2449.         else:

  2450.             value_fix = 1.5

  2451. 

  2452.         bg_color = self.ui.rack.palette().window().color()

  2453.         bg_value = 1.0 - bg_color.blackF()

  2454.         if bg_value != 0.0 and bg_value < min_value:

  2455.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2456.         else:

  2457.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2458. 

  2459.         painter = QPainter()

  2460.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2461. 

  2462.         painter.begin(rack_imgL)

  2463.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2464.         painter.setBrush(pad_color)

  2465.         painter.drawRect(fillRect)

  2466.         painter.end()

  2467.         rack_pixmapL = QPixmap(rack_imgL)

  2468.         self.imgL_palette = QPalette()

  2469.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2470.         self.ui.pad_left.setPalette(self.imgL_palette)

  2471.         self.ui.pad_left.setAutoFillBackground(True)

  2472. 

  2473.         painter.begin(rack_imgR)

  2474.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2475.         painter.setBrush(pad_color)

  2476.         painter.drawRect(fillRect)

  2477.         painter.end()

  2478.         rack_pixmapR = QPixmap(rack_imgR)

  2479.         self.imgR_palette = QPalette()

  2480.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2481.         self.ui.pad_right.setPalette(self.imgR_palette)

  2482.         self.ui.pad_right.setAutoFillBackground(True)

  2483. 

  2484.     # --------------------------------------------------------------------------------------------------------

  2485.     # paint event

  2486. 

  2487.     #def paintEvent(self, event):

  2488.         #QMainWindow.paintEvent(self, event)

  2489. 

  2490.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2491.             #return

  2492. 

  2493.         #painter = QPainter(self)

  2494.         #painter.setBrush(QColor(36, 36, 36))

  2495.         #painter.setPen(QColor(62, 62, 62))

  2496.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2497. 

  2498.     # --------------------------------------------------------------------------------------------------------

  2499.     # close event

  2500. 

  2501.     def shouldIgnoreClose(self):

  2502.         if self.host.isControl or self.host.isPlugin:

  2503.             return False

  2504.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2505.             return False

  2506.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2507.             return QMessageBox.question(self, self.tr("Quit"),

  2508.                                               self.tr("Are you sure you want to quit Carla?"),

  2509.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2510.         return False

  2511. 

  2512.     def closeEvent(self, event):

  2513.         if self.shouldIgnoreClose():

  2514.             event.ignore()

  2515.             return

  2516. 

  2517.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2518.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2519.             self.fMacClosingHelper = False

  2520.             event.ignore()

  2521. 

  2522.             for i in reversed(range(self.fPluginCount)):

  2523.                 self.host.show_custom_ui(i, False)

  2524. 

  2525.             QTimer.singleShot(100, self.close)

  2526.             return

  2527. 

  2528.         self.killTimers()

  2529.         self.saveSettings()

  2530. 

  2531.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2532.             if not self.slot_engineStop(True):

  2533.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2534.                 event.ignore()

  2535.                 return

  2536. 

  2537.         QMainWindow.closeEvent(self, event)

  2538. 

  2539. # ------------------------------------------------------------------------------------------------

  2540. # Canvas callback

  2541. 

  2542. def canvasCallback(action, value1, value2, valueStr):

  2543.     host = gCarla.gui.host

  2544. 

  2545.     if action == patchcanvas.ACTION_GROUP_INFO:

  2546.         pass

  2547. 

  2548.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2549.         pass

  2550. 

  2551.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2552.         groupId = value1

  2553.         patchcanvas.splitGroup(groupId)

  2554.         gCarla.gui.updateMiniCanvasLater()

  2555. 

  2556.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2557.         groupId = value1

  2558.         patchcanvas.joinGroup(groupId)

  2559.         gCarla.gui.updateMiniCanvasLater()

  2560. 

  2561.     elif action == patchcanvas.ACTION_PORT_INFO:

  2562.         pass

  2563. 

  2564.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2565.         pass

  2566. 

  2567.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2568.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2569. 

  2570.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2571.             print("Connection failed:", host.get_last_error())

  2572. 

  2573.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2574.         connectionId = value1

  2575. 

  2576.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2577.             print("Disconnect failed:", host.get_last_error())

  2578. 

  2579.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2580.         pluginId = value1

  2581. 

  2582.         if not host.clone_plugin(pluginId):

  2583.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2584.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2585. 

  2586.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2587.         pluginId = value1

  2588.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2589. 

  2590.         if pwidget is not None:

  2591.             pwidget.showEditDialog()

  2592. 

  2593.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2594.         pluginId = value1

  2595.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2596. 

  2597.         if pwidget is not None:

  2598.             pwidget.showRenameDialog()

  2599. 

  2600.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2601.         pluginId = value1

  2602.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2603. 

  2604.         if pwidget is not None:

  2605.             pwidget.showReplaceDialog()

  2606. 

  2607.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2608.         pluginId = value1

  2609. 

  2610.         if not host.remove_plugin(pluginId):

  2611.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2612.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2613. 

  2614.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2615.         pluginId = value1

  2616.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2617. 

  2618.         if pwidget is not None:

  2619.             pwidget.showCustomUI()

  2620. 

  2621.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2622.         gCarla.gui.showPluginActionsMenu()

  2623. 

  2624.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2625.         # FIXME

  2626.         if gCarla.gui.fPluginCount == 0: return

  2627.         pluginId = value1

  2628.         width, height = [int(v) for v in valueStr.split(":")]

  2629.         return host.render_inline_display(pluginId, width, height)

  2630. 

  2631. # ------------------------------------------------------------------------------------------------------------

  2632. # Engine callback

  2633. 

  2634. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2635.     # kdevelop likes this :)

  2636.     if False: host = CarlaHostNull()

  2637. 

  2638.     valueStr = charPtrToString(valueStr)

  2639. 

  2640.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2641.         host.processMode   = value1

  2642.         host.transportMode = value2

  2643.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2644.         host.processMode   = value1

  2645.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2646.         host.transportMode  = value1

  2647.         host.transportExtra = valueStr

  2648. 

  2649.     if action == ENGINE_CALLBACK_DEBUG:

  2650.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2651.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2652.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2653.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2654.         host.PluginRemovedCallback.emit(pluginId)

  2655.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2656.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2657.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2658.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2659.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2660.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2661.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2662.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2663.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2664.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2665.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2666.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2667.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2668.         host.ProgramChangedCallback.emit(pluginId, value1)

  2669.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2670.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2671.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2672.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2673.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2674.         host.UiStateChangedCallback.emit(pluginId, value1)

  2675.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2676.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2677.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2678.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2679.     elif action == ENGINE_CALLBACK_UPDATE:

  2680.         host.UpdateCallback.emit(pluginId)

  2681.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2682.         host.ReloadInfoCallback.emit(pluginId)

  2683.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2684.         host.ReloadParametersCallback.emit(pluginId)

  2685.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2686.         host.ReloadProgramsCallback.emit(pluginId)

  2687.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2688.         host.ReloadAllCallback.emit(pluginId)

  2689.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2690.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2691.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2692.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2693.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2694.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2695.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2696.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2697.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2698.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2699.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2700.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2701.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2702.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2703.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2704.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2705.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2706.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2707.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2708.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2709.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2710.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2711.         host.EngineStoppedCallback.emit()

  2712.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2713.         host.ProcessModeChangedCallback.emit(value1)

  2714.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2715.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2716.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2717.         host.BufferSizeChangedCallback.emit(value1)

  2718.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2719.         host.SampleRateChangedCallback.emit(valuef)

  2720.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2721.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2722.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2723.         host.ProjectLoadFinishedCallback.emit()

  2724.     elif action == ENGINE_CALLBACK_NSM:

  2725.         host.NSMCallback.emit(value1, value2, valueStr)

  2726.     elif action == ENGINE_CALLBACK_IDLE:

  2727.         QApplication.processEvents()

  2728.     elif action == ENGINE_CALLBACK_INFO:

  2729.         host.InfoCallback.emit(valueStr)

  2730.     elif action == ENGINE_CALLBACK_ERROR:

  2731.         host.ErrorCallback.emit(valueStr)

  2732.     elif action == ENGINE_CALLBACK_QUIT:

  2733.         host.QuitCallback.emit()

  2734.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2735.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2736.     else:

  2737.         print("unhandled action", action)

  2738. 

  2739. # ------------------------------------------------------------------------------------------------------------

  2740. # File callback

  2741. 

  2742. def fileCallback(ptr, action, isDir, title, filter):

  2743.     title  = charPtrToString(title)

  2744.     filter = charPtrToString(filter)

  2745. 

  2746.     if action == FILE_CALLBACK_OPEN:

  2747.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2748.     elif action == FILE_CALLBACK_SAVE:

  2749.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2750.     else:

  2751.         ret, ok = ("", "")

  2752. 

  2753.     # FIXME use ok value, test if it works as expected

  2754.     if not ret:

  2755.         return None

  2756. 

  2757.     # FIXME

  2758.     global fileRet

  2759.     fileRet = c_char_p(ret.encode("utf-8"))

  2760.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2761.     return retval.contents.value

  2762. 

  2763. # ------------------------------------------------------------------------------------------------------------

  2764. # Init host

  2765. 

  2766. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2767.     pathBinaries, pathResources = getPaths(libPrefix)

  2768. 

  2769.     # --------------------------------------------------------------------------------------------------------

  2770.     # Check if we should open main lib as local or global

  2771. 

  2772.     settings = QSettings("falkTX", "Carla2")

  2773. 

  2774.     try:

  2775.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2776.     except:

  2777.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2778. 

  2779.     # --------------------------------------------------------------------------------------------------------

  2780.     # Fail if binary dir is not found

  2781. 

  2782.     if not os.path.exists(pathBinaries):

  2783.         if failError:

  2784.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2785.             sys.exit(1)

  2786.         return

  2787. 

  2788.     # --------------------------------------------------------------------------------------------------------

  2789.     # Set Carla library name

  2790. 

  2791.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2792.     libname   = os.path.join(pathBinaries, libname)

  2793.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2794. 

  2795.     # --------------------------------------------------------------------------------------------------------

  2796.     # Print info

  2797. 

  2798.     print("Carla %s started, status:" % VERSION)

  2799.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2800.     print("  Qt version:     %s" % QT_VERSION_STR)

  2801.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2802.     print("  Binary dir:     %s" % pathBinaries)

  2803.     print("  Resources dir:  %s" % pathResources)

  2804. 

  2805.     # --------------------------------------------------------------------------------------------------------

  2806.     # Init host

  2807. 

  2808.     if failError:

  2809.         # no try

  2810.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2811.     else:

  2812.         try:

  2813.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2814.         except:

  2815.             host = CarlaHostQtNull()

  2816. 

  2817.     host.isControl = isControl

  2818.     host.isPlugin  = isPlugin

  2819. 

  2820.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2821.     host.set_file_callback(fileCallback)

  2822. 

  2823.     # If it's a plugin the paths are already set

  2824.     if not isPlugin:

  2825.         host.pathBinaries  = pathBinaries

  2826.         host.pathResources = pathResources

  2827.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2828.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2829. 

  2830.         if not isControl:

  2831.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2832. 

  2833.     # --------------------------------------------------------------------------------------------------------

  2834.     # Init utils

  2835. 

  2836.     gCarla.utils = CarlaUtils(utilsname)

  2837.     gCarla.utils.set_process_name(os.path.basename(initName))

  2838. 

  2839.     try:

  2840.         sys.stdout.flush()

  2841.     except:

  2842.         pass

  2843. 

  2844.     sys.stdout = CarlaPrint(False)

  2845.     sys.stderr = CarlaPrint(True)

  2846.     sys.excepthook = sys_excepthook

  2847. 

  2848.     # --------------------------------------------------------------------------------------------------------

  2849.     # Done

  2850. 

  2851.     return host

  2852. 

  2853. # ------------------------------------------------------------------------------------------------------------

  2854. # Load host settings

  2855. 

  2856. def loadHostSettings(host):

  2857.     # kdevelop likes this :)

  2858.     if False: host = CarlaHostNull()

  2859. 

  2860.     settings = QSettings("falkTX", "Carla2")

  2861. 

  2862.     try:

  2863.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2864.     except:

  2865.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2866. 

  2867.     try:

  2868.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2869.     except:

  2870.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2871. 

  2872.     try:

  2873.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2874.     except:

  2875.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2876. 

  2877.     try:

  2878.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2879.     except:

  2880.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2881. 

  2882.     try:

  2883.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2884.     except:

  2885.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2886. 

  2887.     try:

  2888.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2889.     except:

  2890.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2891. 

  2892.     try:

  2893.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2894.     except:

  2895.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2896. 

  2897.     try:

  2898.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2899.     except:

  2900.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2901. 

  2902.     try:

  2903.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2904.     except:

  2905.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2906. 

  2907.     try:

  2908.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2909.     except:

  2910.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2911. 

  2912.     try:

  2913.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2914.     except:

  2915.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2916. 

  2917.     try:

  2918.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2919.     except:

  2920.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2921. 

  2922.     try:

  2923.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2924.     except:

  2925.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2926. 

  2927.     if host.isPlugin:

  2928.         return

  2929. 

  2930.     try:

  2931.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  2932.     except:

  2933.         host.transportExtra = ""

  2934. 

  2935.     # enums

  2936.     if host.audioDriverForced is None:

  2937.         try:

  2938.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2939.         except:

  2940.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2941. 

  2942.     if not host.processModeForced:

  2943.         try:

  2944.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2945.         except:

  2946.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2947. 

  2948.     host.nextProcessMode = host.processMode

  2949. 

  2950.     # --------------------------------------------------------------------------------------------------------

  2951.     # fix things if needed

  2952. 

  2953.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  2954.         if LADISH_APP_NAME:

  2955.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2956.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2957. 

  2958.         else:

  2959.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  2960. 

  2961.     if gCarla.nogui:

  2962.         host.showLogs = False

  2963. 

  2964.     # --------------------------------------------------------------------------------------------------------

  2965.     # run headless host now if nogui option enabled

  2966. 

  2967.     if gCarla.nogui:

  2968.         runHostWithoutUI(host)

  2969. 

  2970. # ------------------------------------------------------------------------------------------------------------

  2971. # Set host settings

  2972. 

  2973. def setHostSettings(host):

  2974.     # kdevelop likes this :)

  2975.     if False: host = CarlaHostNull()

  2976. 

  2977.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2978.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2979.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2980.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2981.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2982.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2983.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2984. 

  2985.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2986.         return

  2987. 

  2988.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2989.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  2990.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2991. 

  2992. # ------------------------------------------------------------------------------------------------------------

  2993. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2994. 

  2995. def setEngineSettings(host):

  2996.     # kdevelop likes this :)

  2997.     if False: host = CarlaHostNull()

  2998. 

  2999.     # --------------------------------------------------------------------------------------------------------

  3000.     # do nothing if control

  3001. 

  3002.     if host.isControl:

  3003.         return "Control"

  3004. 

  3005.     # --------------------------------------------------------------------------------------------------------

  3006. 

  3007.     settings = QSettings("falkTX", "Carla2")

  3008. 

  3009.     # --------------------------------------------------------------------------------------------------------

  3010.     # main settings

  3011. 

  3012.     setHostSettings(host)

  3013. 

  3014.     # --------------------------------------------------------------------------------------------------------

  3015.     # plugin paths

  3016. 

  3017.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  3018.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  3019.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  3020.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  3021.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  3022.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  3023.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  3024. 

  3025.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3026.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3027.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3028.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3029.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3030.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3031.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3032. 

  3033.     # --------------------------------------------------------------------------------------------------------

  3034.     # don't continue if plugin

  3035. 

  3036.     if host.isPlugin:

  3037.         return "Plugin"

  3038. 

  3039.     # --------------------------------------------------------------------------------------------------------

  3040.     # osc settings

  3041. 

  3042.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3043. 

  3044.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3045.         portNumTCP = -1

  3046.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3047.         portNumTCP = 0

  3048.     else:

  3049.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3050. 

  3051.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3052.         portNumUDP = -1

  3053.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3054.         portNumUDP = 0

  3055.     else:

  3056.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3057. 

  3058.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3059.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3060.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3061. 

  3062.     # --------------------------------------------------------------------------------------------------------

  3063.     # wine settings

  3064. 

  3065.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3066.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3067.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3068.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3069.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3070.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3071. 

  3072.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3073.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3074.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3075.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3076.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3077.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3078. 

  3079.     # --------------------------------------------------------------------------------------------------------

  3080.     # driver and device settings

  3081. 

  3082.     # driver name

  3083.     if host.audioDriverForced is not None:

  3084.         audioDriver = host.audioDriverForced

  3085.     else:

  3086.         try:

  3087.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3088.         except:

  3089.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3090. 

  3091.     # driver options

  3092.     try:

  3093.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3094.     except:

  3095.         audioDevice = ""

  3096. 

  3097.     try:

  3098.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3099.     except:

  3100.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3101. 

  3102.     try:

  3103.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3104.     except:

  3105.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3106. 

  3107.     try:

  3108.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3109.     except:

  3110.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3111. 

  3112.     # Only setup audio things if engine is not running

  3113.     if not host.is_engine_running():

  3114.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3115. 

  3116.         if not audioDriver.startswith("JACK"):

  3117.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3118.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3119.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3120. 

  3121.     # --------------------------------------------------------------------------------------------------------

  3122.     # fix things if needed

  3123. 

  3124.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3125.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3126.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3127. 

  3128.     # --------------------------------------------------------------------------------------------------------

  3129.     # return selected driver name

  3130. 

  3131.     return audioDriver

  3132. 

  3133. # ------------------------------------------------------------------------------------------------------------

  3134. # Run Carla without showing UI

  3135. 

  3136. def runHostWithoutUI(host):

  3137.     # kdevelop likes this :)

  3138.     if False: host = CarlaHostNull()

  3139. 

  3140.     # --------------------------------------------------------------------------------------------------------

  3141.     # Some initial checks

  3142. 

  3143.     if not gCarla.nogui:

  3144.         return

  3145. 

  3146.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3147. 

  3148.     if not projectFile:

  3149.         print("Carla no-gui mode can only be used together with a project file.")

  3150.         sys.exit(1)

  3151. 

  3152.     # --------------------------------------------------------------------------------------------------------

  3153.     # Additional imports

  3154. 

  3155.     from time import sleep

  3156. 

  3157.     # --------------------------------------------------------------------------------------------------------

  3158.     # Init engine

  3159. 

  3160.     audioDriver = setEngineSettings(host)

  3161.     if not host.engine_init(audioDriver, "Carla"):

  3162.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3163.         sys.exit(1)

  3164. 

  3165.     if not host.load_project(projectFile):

  3166.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3167.         host.engine_close()

  3168.         sys.exit(1)

  3169. 

  3170.     # --------------------------------------------------------------------------------------------------------

  3171.     # Idle

  3172. 

  3173.     print("Carla ready!")

  3174. 

  3175.     while host.is_engine_running() and not gCarla.term:

  3176.         host.engine_idle()

  3177.         sleep(0.0333) # 30 Hz

  3178. 

  3179.     # --------------------------------------------------------------------------------------------------------

  3180.     # Stop

  3181. 

  3182.     host.engine_close()

  3183.     sys.exit(0)

  3184. 

  3185. # ------------------------------------------------------------------------------------------------------------