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

  25. try:

  26.     from PyQt5.Qt import PYQT_VERSION

  27. except ImportError:

  28.     PYQT_VERSION = 0x50600

  29. 

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

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

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

  33. 

  34. # ------------------------------------------------------------------------------------------------------------

  35. # Imports (Custom)

  36. 

  37. import ui_carla_host

  38. 

  39. from carla_app import *

  40. from carla_database import *

  41. from carla_settings import *

  42. from carla_utils import *

  43. from carla_widgets import *

  44. 

  45. from patchcanvas import patchcanvas

  46. from widgets.digitalpeakmeter import DigitalPeakMeter

  47. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  48. 

  49. # ------------------------------------------------------------------------------------------------------------

  50. # Try Import OpenGL

  51. 

  52. try:

  53.     from PyQt5.QtOpenGL import QGLWidget

  54.     hasGL = True

  55. except:

  56.     hasGL = False

  57. 

  58. # ------------------------------------------------------------------------------------------------------------

  59. # Safe exception hook, needed for PyQt5

  60. 

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

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

  63. 

  64. # ------------------------------------------------------------------------------------------------------------

  65. # Session Management support

  66. 

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

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

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

  70. 

  71. # ------------------------------------------------------------------------------------------------------------

  72. # Small print helper

  73. 

  74. def processMode2Str(processMode):

  75.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  76.         return "Single client"

  77.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  78.         return "Multi client"

  79.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  80.         return "Continuous Rack"

  81.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  82.         return "Patchbay"

  83.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  84.         return "Bridge"

  85.     return "Unknown"

  86. 

  87. # ------------------------------------------------------------------------------------------------------------

  88. # Carla Print class

  89. 

  90. class CarlaPrint:

  91.     def __init__(self, err):

  92.         self.err = err

  93. 

  94.     def flush(self):

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

  96. 

  97.     def write(self, string):

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

  99. 

  100. # ------------------------------------------------------------------------------------------------------------

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

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

  105.     # signals

  106.     SIGTERM = pyqtSignal()

  107.     SIGUSR1 = pyqtSignal()

  108. 

  109.     # CustomActions

  110.     CUSTOM_ACTION_NONE         = 0

  111.     CUSTOM_ACTION_APP_CLOSE    = 1

  112.     CUSTOM_ACTION_PROJECT_LOAD = 2

  113. 

  114.     # --------------------------------------------------------------------------------------------------------

  115. 

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

  117.         QMainWindow.__init__(self, parent)

  118.         self.host = host

  119.         self.ui = ui_carla_host.Ui_CarlaHostW()

  120.         self.ui.setupUi(self)

  121.         gCarla.gui = self

  122. 

  123.         if False:

  124.             # kdevelop likes this :)

  125.             host = CarlaHostNull()

  126.             self.host = host

  127. 

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

  129. 

  130.         self.fParentOrSelf = parent or self

  131. 

  132.         # ----------------------------------------------------------------------------------------------------

  133.         # Internal stuff

  134. 

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

  136.         self.fIdleTimerFast = 0

  137.         self.fIdleTimerSlow = 0

  138. 

  139.         self.fLadspaRdfNeedsUpdate = True

  140.         self.fLadspaRdfList = []

  141. 

  142.         self.fPluginCount = 0

  143.         self.fPluginList  = []

  144.         self.fFavoritePlugins = []

  145. 

  146.         self.fProjectFilename  = ""

  147.         self.fIsProjectLoading = False

  148.         self.fCurrentlyRemovingAllPlugins = False

  149. 

  150.         self.fLastTransportBPM   = 0.0

  151.         self.fLastTransportFrame = 0

  152.         self.fLastTransportState = False

  153.         self.fBufferSize         = 0

  154.         self.fSampleRate         = 0.0

  155.         self.fOscAddressTCP      = ""

  156.         self.fOscAddressUDP      = ""

  157.         self.fOscReportedHost    = ""

  158. 

  159.         if MACOS:

  160.             self.fMacClosingHelper = True

  161. 

  162.         # CancelableActionCallback Box

  163.         self.fCancelableActionBox = None

  164. 

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

  166.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  167. 

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

  169.         self.fFirstEngineInit = True

  170. 

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

  172.         self.fSavedSettings = {}

  173. 

  174.         if host.isControl:

  175.             self.fClientName         = "Carla-Control"

  176.             self.fSessionManagerName = "Control"

  177.         elif host.isPlugin:

  178.             self.fClientName         = "Carla-Plugin"

  179.             self.fSessionManagerName = "Plugin"

  180.         elif LADISH_APP_NAME:

  181.             self.fClientName         = LADISH_APP_NAME

  182.             self.fSessionManagerName = "LADISH"

  183.         elif NSM_URL and host.nsmOK:

  184.             self.fClientName         = "Carla.tmp"

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

  186.         else:

  187.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  188.             self.fSessionManagerName = ""

  189. 

  190.         # ----------------------------------------------------------------------------------------------------

  191.         # Internal stuff (patchbay)

  192. 

  193.         self.fExportImage = QImage()

  194. 

  195.         self.fPeaksCleared = True

  196. 

  197.         self.fExternalPatchbay = False

  198.         self.fSelectedPlugins  = []

  199. 

  200.         self.fCanvasWidth  = 0

  201.         self.fCanvasHeight = 0

  202.         self.fMiniCanvasUpdateTimeout = 0

  203. 

  204.         self.fWithCanvas = withCanvas

  205. 

  206.         # ----------------------------------------------------------------------------------------------------

  207.         # Set up GUI (engine stopped)

  208. 

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

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

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

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

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

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

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

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

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

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

  219. 

  220.             if self.host.isControl:

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

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

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

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

  225.             else:

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

  227. 

  228.                 if not withCanvas:

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

  230. 

  231.         else:

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

  233. 

  234.             if WINDOWS:

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

  236. 

  237.         if self.host.isControl:

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

  239.         else:

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

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

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

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

  244. 

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

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

  247. 

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

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

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

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

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

  253. 

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

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

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

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

  258. 

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

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

  261. 

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

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

  264. 

  265.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  283.             self.ui.tw_miniCanvas.hide()

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

  285.             if WINDOWS:

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

  287. 

  288.         # ----------------------------------------------------------------------------------------------------

  289.         # Set up GUI (disk)

  290. 

  291.         exts = gCarla.utils.get_supported_file_extensions()

  292. 

  293.         self.fDirModel = QFileSystemModel(self)

  294.         self.fDirModel.setRootPath(HOME)

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

  296. 

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

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

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

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

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

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

  303. 

  304.         # ----------------------------------------------------------------------------------------------------

  305.         # Set up GUI (transport)

  306. 

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

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

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

  310. 

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

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

  313. 

  314.         if minLabelWidth < labelTimeWidth:

  315.             minLabelWidth = labelTimeWidth

  316.         if minLabelWidth < labelBBTWidth:

  317.             minLabelWidth = labelBBTWidth

  318. 

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

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

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

  322. 

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

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

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

  326. 

  327.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  340. 

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

  342. 

  343.         # ----------------------------------------------------------------------------------------------------

  344.         # Set up GUI (rack)

  345. 

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

  347. 

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

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

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

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

  352. 

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

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

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

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

  357. 

  358.         self.updateStyle()

  359. 

  360.         self.ui.rack.setStyleSheet("""

  361.           CarlaRackList#CarlaRackList {

  362.             background-color: black;

  363.           }

  364.         """)

  365. 

  366.         # ----------------------------------------------------------------------------------------------------

  367.         # Set up GUI (patchbay)

  368. 

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

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

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

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

  373. 

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

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

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

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

  378. 

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

  380.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  382. 

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

  384. 

  385.         self.ui.miniCanvasPreview.setRealParent(self)

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

  387. 

  388.         # ----------------------------------------------------------------------------------------------------

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

  390. 

  391.         if MACOS:

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

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

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

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

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

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

  398. 

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

  400.         # Load Settings

  401. 

  402.         self.loadSettings(True)

  403. 

  404.         # ----------------------------------------------------------------------------------------------------

  405.         # Set-up Canvas

  406. 

  407.         if withCanvas:

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

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

  410. 

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

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

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

  414. 

  415.             self.setupCanvas()

  416. 

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

  418.         # Connect actions to functions

  419. 

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

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

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

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

  424. 

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

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

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

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

  429. 

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

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

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

  433. 

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

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

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

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

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

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

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

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

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

  443. 

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

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

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

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

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

  449. 

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

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

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

  453. 

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

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

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

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

  458. 

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

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

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

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

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

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

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

  466. 

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

  468. 

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

  470. 

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

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

  473. 

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

  475. 

  476.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  494. 

  495.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  496.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  497. 

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

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

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

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

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

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

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

  505. 

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

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

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

  509. 

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

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

  512. 

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

  514. 

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

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

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

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

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

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

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

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

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

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

  525. 

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

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

  528. 

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

  530. 

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

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

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

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

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

  536. 

  537.         # ----------------------------------------------------------------------------------------------------

  538.         # Final setup

  539. 

  540.         self.ui.text_logs.clear()

  541.         self.setProperWindowTitle()

  542. 

  543.         # Disable non-supported features

  544.         features = gCarla.utils.get_supported_features()

  545. 

  546.         if "link" not in features:

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

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

  549. 

  550.         if "juce" not in features:

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

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

  553. 

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

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

  556.             self.startTimers()

  557. 

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

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

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

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

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

  563. 

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

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

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

  567. 

  568.         # Load initial project file if set

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

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

  571. 

  572.             if projectFile:

  573.                 self.loadProjectLater(projectFile)

  574. 

  575.         # For NSM we wait for the open message

  576.         if NSM_URL and host.nsmOK:

  577.             host.nsm_ready(NSM_CALLBACK_INIT)

  578.             return

  579. 

  580.         if not host.isControl:

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

  582. 

  583.     # --------------------------------------------------------------------------------------------------------

  584.     # Setup

  585. 

  586.     def compactPlugin(self, pluginId):

  587.         if pluginId > self.fPluginCount:

  588.             return

  589. 

  590.         pitem = self.fPluginList[pluginId]

  591. 

  592.         if pitem is None:

  593.             return

  594. 

  595.         pitem.recreateWidget(True)

  596. 

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

  598.         if pluginId > self.fPluginCount:

  599.             return

  600. 

  601.         pitem = self.fPluginList[pluginId]

  602. 

  603.         if pitem is None:

  604.             return

  605. 

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

  607.         pitem.recreateWidget(newColor = color)

  608. 

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

  610.         if pluginId > self.fPluginCount:

  611.             return

  612. 

  613.         pitem = self.fPluginList[pluginId]

  614. 

  615.         if pitem is None:

  616.             return

  617. 

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

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

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

  621.         else:

  622.             pitem.recreateWidget(newSkin = skin)

  623. 

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

  625.         if pluginIdA == pluginIdB:

  626.             return

  627.         if pluginIdA < 0 or pluginIdB < 0:

  628.             return

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

  630.             return

  631. 

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

  633. 

  634.         itemA = self.fPluginList[pluginIdA]

  635.         compactA = itemA.isCompacted()

  636.         guiShownA = itemA.isGuiShown()

  637. 

  638.         itemB = self.fPluginList[pluginIdB]

  639.         compactB = itemB.isCompacted()

  640.         guiShownB = itemB.isGuiShown()

  641. 

  642.         itemA.setPluginId(pluginIdA)

  643.         itemA.recreateWidget2(compactB, guiShownB)

  644. 

  645.         itemB.setPluginId(pluginIdB)

  646.         itemB.recreateWidget2(compactA, guiShownA)

  647. 

  648.         if self.fWithCanvas:

  649.             self.slot_canvasRefresh()

  650. 

  651.     def setLoadRDFsNeeded(self):

  652.         self.fLadspaRdfNeedsUpdate = True

  653. 

  654.     def setProperWindowTitle(self):

  655.         title = self.fClientName

  656. 

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

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

  659.         if self.fSessionManagerName:

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

  661. 

  662.         self.setWindowTitle(title)

  663. 

  664.     def updateBufferSize(self, newBufferSize):

  665.         if self.fBufferSize == newBufferSize:

  666.             return

  667.         self.fBufferSize = newBufferSize

  668.         self.ui.cb_buffer_size.clear()

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

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

  671. 

  672.     def updateSampleRate(self, newSampleRate):

  673.         if self.fSampleRate == newSampleRate:

  674.             return

  675.         self.fSampleRate = newSampleRate

  676.         self.ui.cb_sample_rate.clear()

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

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

  679.         self.refreshTransport(True)

  680. 

  681.     # --------------------------------------------------------------------------------------------------------

  682.     # Files

  683. 

  684.     def makeExtraFilename(self):

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

  686. 

  687.     def loadProjectNow(self):

  688.         if not self.fProjectFilename:

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

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

  691.             return

  692. 

  693.         self.projectLoadingStarted()

  694.         self.fIsProjectLoading = True

  695. 

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

  697.             self.fIsProjectLoading = False

  698.             self.projectLoadingFinished()

  699. 

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

  701.                              self.host.get_last_error(),

  702.                              QMessageBox.Ok, QMessageBox.Ok)

  703. 

  704.     def loadProjectLater(self, filename):

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

  706.         self.setProperWindowTitle()

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

  708. 

  709.     def saveProjectNow(self):

  710.         if not self.fProjectFilename:

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

  712. 

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

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

  715.                              self.host.get_last_error(),

  716.                              QMessageBox.Ok, QMessageBox.Ok)

  717.             return

  718. 

  719.         if not self.fWithCanvas:

  720.             return

  721. 

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

  723.             json.dump({

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

  725.             }, fh)

  726. 

  727.     def projectLoadingStarted(self):

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

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

  730. 

  731.     def projectLoadingFinished(self):

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

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

  734. 

  735.         if not self.fWithCanvas:

  736.             return

  737. 

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

  739. 

  740.         extrafile = self.makeExtraFilename()

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

  742.             return

  743. 

  744.         try:

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

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

  747.         except:

  748.             return

  749. 

  750.         patchcanvas.restoreGroupPositions(canvasdata)

  751. 

  752.     # --------------------------------------------------------------------------------------------------------

  753.     # Files (menu actions)

  754. 

  755.     @pyqtSlot()

  756.     def slot_fileNew(self):

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

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

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

  760.             return

  761. 

  762.         self.pluginRemoveAll()

  763.         self.fProjectFilename = ""

  764.         self.setProperWindowTitle()

  765.         self.host.clear_project_filename()

  766. 

  767.     @pyqtSlot()

  768.     def slot_fileOpen(self):

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

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

  771. 

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

  773.         if not filename:

  774.             return

  775. 

  776.         newFile = True

  777. 

  778.         if self.fPluginCount > 0:

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

  780.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  782. 

  783.         if newFile:

  784.             self.pluginRemoveAll()

  785.             self.fProjectFilename = filename

  786.             self.setProperWindowTitle()

  787.             self.loadProjectNow()

  788.         else:

  789.             filenameOld = self.fProjectFilename

  790.             self.fProjectFilename = filename

  791.             self.loadProjectNow()

  792.             self.fProjectFilename = filenameOld

  793. 

  794.     @pyqtSlot()

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

  796.         if self.fProjectFilename and not saveAs:

  797.             return self.saveProjectNow()

  798. 

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

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

  801. 

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

  803.         if not filename:

  804.             return

  805. 

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

  807.             filename += ".carxp"

  808. 

  809.         if self.fProjectFilename != filename:

  810.             self.fProjectFilename = filename

  811.             self.setProperWindowTitle()

  812. 

  813.         self.saveProjectNow()

  814. 

  815.     @pyqtSlot()

  816.     def slot_fileSaveAs(self):

  817.         self.slot_fileSave(True)

  818. 

  819.     @pyqtSlot()

  820.     def slot_loadProjectNow(self):

  821.         self.loadProjectNow()

  822. 

  823.     # --------------------------------------------------------------------------------------------------------

  824.     # Engine (menu actions)

  825. 

  826.     @pyqtSlot()

  827.     def slot_engineStart(self):

  828.         audioDriver = setEngineSettings(self.host)

  829.         firstInit   = self.fFirstEngineInit

  830. 

  831.         self.fFirstEngineInit = False

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

  833. 

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

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

  836.                 settings = QSettings()

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

  838.                 del settings

  839.                 self.host.transport_bpm(lastBpm)

  840.             return

  841. 

  842.         elif firstInit:

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

  844.             return

  845. 

  846.         audioError = self.host.get_last_error()

  847. 

  848.         if audioError:

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

  850.         else:

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

  852. 

  853.     @pyqtSlot()

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

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

  856. 

  857.         if self.fPluginCount == 0:

  858.             self.engineStopFinal()

  859.             return True

  860. 

  861.         if not forced:

  862.             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"

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

  864.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  865.             if ask != QMessageBox.Yes:

  866.                 return False

  867. 

  868.         return self.slot_engineStopTryAgain()

  869. 

  870.     @pyqtSlot()

  871.     def slot_engineConfig(self):

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

  873. 

  874.         if not dialog.exec_():

  875.             return

  876. 

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

  878.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Engine was stopped while configuring settings, all changes have been ignored"))

  879.             return

  880. 

  881.         bufferSize, sampleRate = dialog.getValues()

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

  883. 

  884.     @pyqtSlot()

  885.     def slot_engineStopTryAgain(self):

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

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

  888.             return False

  889. 

  890.         self.engineStopFinal()

  891.         return True

  892. 

  893.     def engineStopFinal(self):

  894.         self.killTimers()

  895. 

  896.         if self.host.is_engine_running():

  897.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  898.                 self.removeAllPlugins()

  899.             elif self.fPluginCount != 0:

  900.                 self.fCurrentlyRemovingAllPlugins = True

  901.                 self.projectLoadingStarted()

  902. 

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

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

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

  906. 

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

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

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

  910. 

  911.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  912.             self.close()

  913.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  914.             self.slot_engineStart()

  915.             self.loadProjectNow()

  916.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  917. 

  918.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  919. 

  920.     # --------------------------------------------------------------------------------------------------------

  921.     # Engine (host callbacks)

  922. 

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

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

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

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

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

  928. 

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

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

  931. 

  932.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY: # and not self.host.isPlugin:

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

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

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

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

  937.             self.fExternalPatchbay = False

  938.         else:

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

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

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

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

  943.             self.fExternalPatchbay = True

  944. 

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

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

  947. 

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

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

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

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

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

  953. 

  954.         if not self.host.isPlugin:

  955.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  956. 

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

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

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

  960. 

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

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

  963. 

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

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

  966. 

  967.         self.updateBufferSize(bufferSize)

  968.         self.updateSampleRate(int(sampleRate))

  969.         self.refreshRuntimeInfo(0.0, 0)

  970.         self.startTimers()

  971. 

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

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

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

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

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

  977. 

  978.     @pyqtSlot()

  979.     def slot_handleEngineStoppedCallback(self):

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

  981. 

  982.         patchcanvas.clear()

  983.         self.killTimers()

  984. 

  985.         # just in case

  986.         self.removeAllPlugins()

  987.         self.refreshRuntimeInfo(0.0, 0)

  988. 

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

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

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

  992. 

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

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

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

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

  997. 

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

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

  1000.             self.ui.act_file_save_as.setEnabled(False)

  1001. 

  1002.     @pyqtSlot(int, str)

  1003.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1004.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1005. 

  1006.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1007.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1008. 

  1009.     @pyqtSlot(int)

  1010.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1011.         self.updateBufferSize(newBufferSize)

  1012. 

  1013.     @pyqtSlot(float)

  1014.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1015.         self.updateSampleRate(int(newSampleRate))

  1016. 

  1017.     @pyqtSlot(int, bool, str)

  1018.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1019.         if self.fCancelableActionBox is not None:

  1020.             self.fCancelableActionBox.close()

  1021. 

  1022.         if started:

  1023.             self.fCancelableActionBox = QMessageBox(self)

  1024.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1025.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1026.             self.fCancelableActionBox.setText(action)

  1027.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1028.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1029.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1030.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1031.             self.fCancelableActionBox.show()

  1032. 

  1033.         else:

  1034.             self.fCancelableActionBox = None

  1035. 

  1036.     @pyqtSlot()

  1037.     def slot_canlableActionBoxClicked(self):

  1038.         self.host.cancel_engine_action()

  1039. 

  1040.     @pyqtSlot()

  1041.     def slot_handleProjectLoadFinishedCallback(self):

  1042.         self.fIsProjectLoading = False

  1043.         self.projectLoadingFinished()

  1044. 

  1045.     # --------------------------------------------------------------------------------------------------------

  1046.     # Plugins

  1047. 

  1048.     def removeAllPlugins(self):

  1049.         self.ui.act_plugin_remove_all.setEnabled(False)

  1050.         patchcanvas.handleAllPluginsRemoved()

  1051. 

  1052.         while self.ui.listWidget.takeItem(0):

  1053.             pass

  1054. 

  1055.         self.clearSideStuff()

  1056. 

  1057.         for pitem in self.fPluginList:

  1058.             if pitem is None:

  1059.                 continue

  1060. 

  1061.             pitem.close()

  1062.             del pitem

  1063. 

  1064.         self.fPluginCount = 0

  1065.         self.fPluginList  = []

  1066. 

  1067.     # --------------------------------------------------------------------------------------------------------

  1068.     # Plugins (menu actions)

  1069. 

  1070.     def showAddPluginDialog(self):

  1071.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1072.         ret = dialog.exec_()

  1073. 

  1074.         if dialog.fFavoritePluginsChanged:

  1075.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1076. 

  1077.         if not ret:

  1078.             return

  1079. 

  1080.         if not self.host.is_engine_running():

  1081.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1082.             return

  1083. 

  1084.         btype    = dialog.fRetPlugin['build']

  1085.         ptype    = dialog.fRetPlugin['type']

  1086.         filename = dialog.fRetPlugin['filename']

  1087.         label    = dialog.fRetPlugin['label']

  1088.         uniqueId = dialog.fRetPlugin['uniqueId']

  1089.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1090. 

  1091.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1092. 

  1093.     def showAddJackAppDialog(self):

  1094.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1095. 

  1096.         if not dialog.exec_():

  1097.             return

  1098. 

  1099.         if not self.host.is_engine_running():

  1100.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1101.             return

  1102. 

  1103.         return dialog.getCommandAndFlags()

  1104. 

  1105.     @pyqtSlot()

  1106.     def slot_favoritePluginAdd(self):

  1107.         plugin = self.sender().data()

  1108. 

  1109.         if plugin is None:

  1110.             return

  1111. 

  1112.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1113.                                     plugin['label'], plugin['uniqueId'], None, 0x0):

  1114.             CustomMessageBox(self,

  1115.                              QMessageBox.Critical,

  1116.                              self.tr("Error"),

  1117.                              self.tr("Failed to load plugin"),

  1118.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1119. 

  1120.     @pyqtSlot()

  1121.     def showPluginActionsMenu(self):

  1122.         menu = QMenu(self)

  1123. 

  1124.         menu.addSection("Plugins")

  1125.         menu.addAction(self.ui.act_plugin_add)

  1126. 

  1127.         if len(self.fFavoritePlugins) != 0:

  1128.             fmenu = QMenu("Add from favorites", self)

  1129.             for p in self.fFavoritePlugins:

  1130.                 act = fmenu.addAction(p['name'])

  1131.                 act.setData(p)

  1132.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1133.             menu.addMenu(fmenu)

  1134. 

  1135.         menu.addAction(self.ui.act_plugin_remove_all)

  1136. 

  1137.         menu.addSection("All plugins (macros)")

  1138.         menu.addAction(self.ui.act_plugins_enable)

  1139.         menu.addAction(self.ui.act_plugins_disable)

  1140.         menu.addSeparator()

  1141.         menu.addAction(self.ui.act_plugins_volume100)

  1142.         menu.addAction(self.ui.act_plugins_mute)

  1143.         menu.addSeparator()

  1144.         menu.addAction(self.ui.act_plugins_wet100)

  1145.         menu.addAction(self.ui.act_plugins_bypass)

  1146.         menu.addSeparator()

  1147.         menu.addAction(self.ui.act_plugins_center)

  1148.         menu.addSeparator()

  1149.         menu.addAction(self.ui.act_plugins_compact)

  1150.         menu.addAction(self.ui.act_plugins_expand)

  1151. 

  1152.         menu.exec_(QCursor.pos())

  1153. 

  1154.     @pyqtSlot()

  1155.     def slot_pluginAdd(self):

  1156.         data = self.showAddPluginDialog()

  1157. 

  1158.         if data is None:

  1159.             return

  1160. 

  1161.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1162. 

  1163.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1164.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1165. 

  1166.     @pyqtSlot()

  1167.     def slot_confirmRemoveAll(self):

  1168.         if self.fPluginCount == 0:

  1169.             return

  1170. 

  1171.         if QMessageBox.question(self, self.tr("Remove All"),

  1172.                                       self.tr("Are you sure you want to remove all plugins?"),

  1173.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1174.             return

  1175. 

  1176.         self.pluginRemoveAll()

  1177. 

  1178.     def pluginRemoveAll(self):

  1179.         if self.fPluginCount == 0:

  1180.             return

  1181. 

  1182.         self.fCurrentlyRemovingAllPlugins = True

  1183.         self.projectLoadingStarted()

  1184. 

  1185.         if not self.host.remove_all_plugins():

  1186.             self.projectLoadingFinished()

  1187.             self.fCurrentlyRemovingAllPlugins = False

  1188.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1189.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1190. 

  1191.     @pyqtSlot()

  1192.     def slot_jackAppAdd(self):

  1193.         data = self.showAddJackAppDialog()

  1194. 

  1195.         if data is None:

  1196.             return

  1197. 

  1198.         filename, name, label = data

  1199. 

  1200.         if not filename:

  1201.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1202.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1203.             return

  1204. 

  1205.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1206.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1207.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1208. 

  1209.     # --------------------------------------------------------------------------------------------------------

  1210.     # Plugins (macros)

  1211. 

  1212.     @pyqtSlot()

  1213.     def slot_pluginsEnable(self):

  1214.         if not self.host.is_engine_running():

  1215.             return

  1216. 

  1217.         for pitem in self.fPluginList:

  1218.             if pitem is None:

  1219.                 break

  1220. 

  1221.             pitem.getWidget().setActive(True, True, True)

  1222. 

  1223.     @pyqtSlot()

  1224.     def slot_pluginsDisable(self):

  1225.         if not self.host.is_engine_running():

  1226.             return

  1227. 

  1228.         for pitem in self.fPluginList:

  1229.             if pitem is None:

  1230.                 break

  1231. 

  1232.             pitem.getWidget().setActive(False, True, True)

  1233. 

  1234.     @pyqtSlot()

  1235.     def slot_pluginsVolume100(self):

  1236.         if not self.host.is_engine_running():

  1237.             return

  1238. 

  1239.         for pitem in self.fPluginList:

  1240.             if pitem is None:

  1241.                 break

  1242. 

  1243.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1244. 

  1245.     @pyqtSlot()

  1246.     def slot_pluginsMute(self):

  1247.         if not self.host.is_engine_running():

  1248.             return

  1249. 

  1250.         for pitem in self.fPluginList:

  1251.             if pitem is None:

  1252.                 break

  1253. 

  1254.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1255. 

  1256.     @pyqtSlot()

  1257.     def slot_pluginsWet100(self):

  1258.         if not self.host.is_engine_running():

  1259.             return

  1260. 

  1261.         for pitem in self.fPluginList:

  1262.             if pitem is None:

  1263.                 break

  1264. 

  1265.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1266. 

  1267.     @pyqtSlot()

  1268.     def slot_pluginsBypass(self):

  1269.         if not self.host.is_engine_running():

  1270.             return

  1271. 

  1272.         for pitem in self.fPluginList:

  1273.             if pitem is None:

  1274.                 break

  1275. 

  1276.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1277. 

  1278.     @pyqtSlot()

  1279.     def slot_pluginsCenter(self):

  1280.         if not self.host.is_engine_running():

  1281.             return

  1282. 

  1283.         for pitem in self.fPluginList:

  1284.             if pitem is None:

  1285.                 break

  1286. 

  1287.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1288.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1289.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1290. 

  1291.     @pyqtSlot()

  1292.     def slot_pluginsCompact(self):

  1293.         for pitem in self.fPluginList:

  1294.             if pitem is None:

  1295.                 break

  1296.             pitem.compact()

  1297. 

  1298.     @pyqtSlot()

  1299.     def slot_pluginsExpand(self):

  1300.         for pitem in self.fPluginList:

  1301.             if pitem is None:

  1302.                 break

  1303.             pitem.expand()

  1304. 

  1305.     # --------------------------------------------------------------------------------------------------------

  1306.     # Plugins (host callbacks)

  1307. 

  1308.     @pyqtSlot(int, str)

  1309.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1310.         if pluginId != self.fPluginCount:

  1311.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1312.             pitem = self.getPluginItem(pluginId)

  1313.             pitem.recreateWidget()

  1314.             return

  1315. 

  1316.         pitem = self.ui.listWidget.createItem(pluginId)

  1317.         self.fPluginList.append(pitem)

  1318.         self.fPluginCount += 1

  1319. 

  1320.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1321. 

  1322.     @pyqtSlot(int)

  1323.     def slot_handlePluginRemovedCallback(self, pluginId):

  1324.         patchcanvas.handlePluginRemoved(pluginId)

  1325. 

  1326.         if pluginId in self.fSelectedPlugins:

  1327.             self.clearSideStuff()

  1328. 

  1329.         if self.fPluginCount == 0:

  1330.             return

  1331. 

  1332.         pitem = self.getPluginItem(pluginId)

  1333. 

  1334.         self.fPluginCount -= 1

  1335.         self.fPluginList.pop(pluginId)

  1336.         self.ui.listWidget.takeItem(pluginId)

  1337. 

  1338.         if pitem is not None:

  1339.             pitem.close()

  1340.             del pitem

  1341. 

  1342.         if self.fPluginCount == 0:

  1343.             self.ui.act_plugin_remove_all.setEnabled(False)

  1344.             if self.fCurrentlyRemovingAllPlugins:

  1345.                 self.fCurrentlyRemovingAllPlugins = False

  1346.                 self.projectLoadingFinished()

  1347.             return

  1348. 

  1349.         # push all plugins 1 slot back

  1350.         for i in range(pluginId, self.fPluginCount):

  1351.             pitem = self.fPluginList[i]

  1352.             pitem.setPluginId(i)

  1353. 

  1354.         self.ui.act_plugin_remove_all.setEnabled(True)

  1355. 

  1356.     # --------------------------------------------------------------------------------------------------------

  1357.     # Canvas

  1358. 

  1359.     def clearSideStuff(self):

  1360.         if self.fWithCanvas:

  1361.             self.scene.clearSelection()

  1362. 

  1363.         self.fSelectedPlugins = []

  1364. 

  1365.         self.ui.keyboard.allNotesOff(False)

  1366.         self.ui.scrollArea.setEnabled(False)

  1367. 

  1368.         self.fPeaksCleared = True

  1369.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1370.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1371.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1372.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1373. 

  1374.     def setupCanvas(self):

  1375.         pOptions = patchcanvas.options_t()

  1376.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1377.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1378.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1379.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1380.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1381.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1382. 

  1383.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1384.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1385.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1386.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1387.         else:

  1388.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1389. 

  1390.         pFeatures = patchcanvas.features_t()

  1391.         pFeatures.group_info   = False

  1392.         pFeatures.group_rename = False

  1393.         pFeatures.port_info    = False

  1394.         pFeatures.port_rename  = False

  1395.         pFeatures.handle_group_pos = True

  1396. 

  1397.         patchcanvas.setOptions(pOptions)

  1398.         patchcanvas.setFeatures(pFeatures)

  1399.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1400. 

  1401.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1402. 

  1403.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1404.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1405.             self.fCanvasHeight = int(tryCanvasSize[1])

  1406.         else:

  1407.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1408.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1409. 

  1410.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1411.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1412.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1413. 

  1414.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1415.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1416. 

  1417.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1418.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1419. 

  1420.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1421.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1422.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1423. 

  1424.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1425.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1426. 

  1427.         else:

  1428.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1429. 

  1430.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1431.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1432.         else:

  1433.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1434. 

  1435.     def updateCanvasInitialPos(self):

  1436.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1437.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1438.         patchcanvas.setInitialPos(x, y)

  1439. 

  1440.     def updateMiniCanvasLater(self):

  1441.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1442. 

  1443.     # --------------------------------------------------------------------------------------------------------

  1444.     # Canvas (menu actions)

  1445. 

  1446.     @pyqtSlot()

  1447.     def slot_canvasShowInternal(self):

  1448.         self.fExternalPatchbay = False

  1449.         self.ui.act_canvas_show_internal.blockSignals(True)

  1450.         self.ui.act_canvas_show_external.blockSignals(True)

  1451.         self.ui.act_canvas_show_internal.setChecked(True)

  1452.         self.ui.act_canvas_show_external.setChecked(False)

  1453.         self.ui.act_canvas_show_internal.blockSignals(False)

  1454.         self.ui.act_canvas_show_external.blockSignals(False)

  1455.         self.slot_canvasRefresh()

  1456. 

  1457.     @pyqtSlot()

  1458.     def slot_canvasShowExternal(self):

  1459.         self.fExternalPatchbay = True

  1460.         self.ui.act_canvas_show_internal.blockSignals(True)

  1461.         self.ui.act_canvas_show_external.blockSignals(True)

  1462.         self.ui.act_canvas_show_internal.setChecked(False)

  1463.         self.ui.act_canvas_show_external.setChecked(True)

  1464.         self.ui.act_canvas_show_internal.blockSignals(False)

  1465.         self.ui.act_canvas_show_external.blockSignals(False)

  1466.         self.slot_canvasRefresh()

  1467. 

  1468.     @pyqtSlot()

  1469.     def slot_canvasArrange(self):

  1470.         patchcanvas.arrange()

  1471. 

  1472.     @pyqtSlot()

  1473.     def slot_canvasRefresh(self):

  1474.         patchcanvas.clear()

  1475. 

  1476.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1477.             return

  1478. 

  1479.         if self.host.is_engine_running():

  1480.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1481. 

  1482.         self.updateMiniCanvasLater()

  1483. 

  1484.     @pyqtSlot()

  1485.     def slot_canvasZoomFit(self):

  1486.         self.scene.zoom_fit()

  1487. 

  1488.     @pyqtSlot()

  1489.     def slot_canvasZoomIn(self):

  1490.         self.scene.zoom_in()

  1491. 

  1492.     @pyqtSlot()

  1493.     def slot_canvasZoomOut(self):

  1494.         self.scene.zoom_out()

  1495. 

  1496.     @pyqtSlot()

  1497.     def slot_canvasZoomReset(self):

  1498.         self.scene.zoom_reset()

  1499. 

  1500.     @pyqtSlot()

  1501.     def slot_canvasSaveImage(self):

  1502.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1503. 

  1504.         # FIXME use ok value, test if it works as expected

  1505.         if not newPath:

  1506.             return

  1507. 

  1508.         self.scene.clearSelection()

  1509. 

  1510.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1511.             imgFormat = "JPG"

  1512.         elif newPath.lower().endswith((".png",)):

  1513.             imgFormat = "PNG"

  1514.         else:

  1515.             # File-dialog may not auto-add the extension

  1516.             imgFormat = "PNG"

  1517.             newPath  += ".png"

  1518. 

  1519.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1520.         painter = QPainter(self.fExportImage)

  1521.         painter.save()

  1522.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1523.         painter.setRenderHint(QPainter.TextAntialiasing)

  1524.         self.scene.render(painter)

  1525.         self.fExportImage.save(newPath, imgFormat, 100)

  1526.         painter.restore()

  1527. 

  1528.     # --------------------------------------------------------------------------------------------------------

  1529.     # Canvas (canvas callbacks)

  1530. 

  1531.     @pyqtSlot(int, int, QPointF)

  1532.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1533.         self.updateMiniCanvasLater()

  1534. 

  1535.     @pyqtSlot()

  1536.     def slot_canvasSelectionChanged(self):

  1537.         self.updateMiniCanvasLater()

  1538. 

  1539.     @pyqtSlot(float)

  1540.     def slot_canvasScaleChanged(self, scale):

  1541.         self.ui.miniCanvasPreview.setViewScale(scale)

  1542. 

  1543.     @pyqtSlot(list)

  1544.     def slot_canvasPluginSelected(self, pluginList):

  1545.         self.ui.keyboard.allNotesOff(False)

  1546.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1547.         self.fSelectedPlugins = pluginList

  1548. 

  1549.     # --------------------------------------------------------------------------------------------------------

  1550.     # Canvas (host callbacks)

  1551. 

  1552.     @pyqtSlot(int, int, int, str)

  1553.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1554.         pcSplit = patchcanvas.SPLIT_UNDEF

  1555.         pcIcon  = patchcanvas.ICON_APPLICATION

  1556. 

  1557.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1558.             pcIcon = patchcanvas.ICON_PLUGIN

  1559.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1560.             pcIcon = patchcanvas.ICON_HARDWARE

  1561.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1562.             pass

  1563.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1564.             pcIcon = patchcanvas.ICON_DISTRHO

  1565.         elif clientIcon == PATCHBAY_ICON_FILE:

  1566.             pcIcon = patchcanvas.ICON_FILE

  1567. 

  1568.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1569. 

  1570.         self.updateMiniCanvasLater()

  1571. 

  1572.         if pluginId < 0:

  1573.             return

  1574.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1575.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1576.             return

  1577. 

  1578.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1579.             hasCustomUI = False

  1580.             hasInlineDisplay = False

  1581.         else:

  1582.             hints = self.host.get_plugin_info(pluginId)['hints']

  1583.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1584.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1585. 

  1586.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1587. 

  1588.     @pyqtSlot(int)

  1589.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1590.         patchcanvas.removeGroup(clientId)

  1591.         self.updateMiniCanvasLater()

  1592. 

  1593.     @pyqtSlot(int, str)

  1594.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1595.         patchcanvas.renameGroup(clientId, newClientName)

  1596.         self.updateMiniCanvasLater()

  1597. 

  1598.     @pyqtSlot(int, int, int)

  1599.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1600.         pcIcon = patchcanvas.ICON_APPLICATION

  1601. 

  1602.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1603.             pcIcon = patchcanvas.ICON_PLUGIN

  1604.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1605.             pcIcon = patchcanvas.ICON_HARDWARE

  1606.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1607.             pass

  1608.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1609.             pcIcon = patchcanvas.ICON_DISTRHO

  1610.         elif clientIcon == PATCHBAY_ICON_FILE:

  1611.             pcIcon = patchcanvas.ICON_FILE

  1612. 

  1613.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1614.         self.updateMiniCanvasLater()

  1615. 

  1616.         if pluginId < 0:

  1617.             return

  1618.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1619.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1620.             return

  1621. 

  1622.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1623.             hasCustomUI = False

  1624.             hasInlineDisplay = False

  1625.         else:

  1626.             hints = self.host.get_plugin_info(pluginId)['hints']

  1627.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1628.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1629. 

  1630.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1631. 

  1632.     @pyqtSlot(int, int, int, int, str)

  1633.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1634.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1635.             portMode = patchcanvas.PORT_MODE_INPUT

  1636.         else:

  1637.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1638. 

  1639.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1640.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1641.             isAlternate = False

  1642.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1643.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1644.             isAlternate = True

  1645.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1646.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1647.             isAlternate = False

  1648.         else:

  1649.             portType    = patchcanvas.PORT_TYPE_NULL

  1650.             isAlternate = False

  1651. 

  1652.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1653.         self.updateMiniCanvasLater()

  1654. 

  1655.     @pyqtSlot(int, int)

  1656.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1657.         patchcanvas.removePort(groupId, portId)

  1658.         self.updateMiniCanvasLater()

  1659. 

  1660.     @pyqtSlot(int, int, int, int, str)

  1661.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1662.         patchcanvas.renamePort(groupId, portId, newPortName)

  1663.         self.updateMiniCanvasLater()

  1664. 

  1665.     @pyqtSlot(int, int, int, str)

  1666.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1667.         # TODO

  1668.         pass

  1669. 

  1670.     @pyqtSlot(int, int)

  1671.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1672.         # TODO

  1673.         pass

  1674. 

  1675.     @pyqtSlot(int, int, int, str)

  1676.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1677.         # TODO

  1678.         pass

  1679. 

  1680.     @pyqtSlot(int, int, int, int, int)

  1681.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1682.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1683.         self.updateMiniCanvasLater()

  1684. 

  1685.     @pyqtSlot(int, int, int)

  1686.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1687.         patchcanvas.disconnectPorts(connectionId)

  1688.         self.updateMiniCanvasLater()

  1689. 

  1690.     # --------------------------------------------------------------------------------------------------------

  1691.     # Settings

  1692. 

  1693.     def saveSettings(self):

  1694.         settings = QSettings()

  1695. 

  1696.         settings.setValue("Geometry", self.saveGeometry())

  1697.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1698. 

  1699.         if not self.host.isControl:

  1700.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1701. 

  1702.         diskFolders = []

  1703. 

  1704.         for i in range(self.ui.cb_disk.count()):

  1705.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1706. 

  1707.         settings.setValue("DiskFolders", diskFolders)

  1708.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1709. 

  1710.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1711.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1712.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1713.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1714. 

  1715.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1716.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1717. 

  1718.         return settings

  1719. 

  1720.     def loadSettings(self, firstTime):

  1721.         settings = QSettings()

  1722. 

  1723.         if firstTime:

  1724.             self.restoreGeometry(settings.value("Geometry", b""))

  1725. 

  1726.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1727.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1728.             self.ui.toolBar.setEnabled(showToolbar)

  1729.             self.ui.toolBar.setVisible(showToolbar)

  1730. 

  1731.             #if settings.contains("SplitterState"):

  1732.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1733.             #else:

  1734.                 #self.ui.splitter.setSizes([210, 99999])

  1735. 

  1736.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1737.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1738.             self.slot_showSidePanel(showSidePanel)

  1739. 

  1740.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1741. 

  1742.             self.ui.cb_disk.setItemData(0, HOME)

  1743. 

  1744.             for i in range(len(diskFolders)):

  1745.                 if i == 0: continue

  1746.                 folder = diskFolders[i]

  1747.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1748. 

  1749.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1750.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1751. 

  1752.             showMeters = settings.value("ShowMeters", True, type=bool)

  1753.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1754.             self.ui.peak_in.setVisible(showMeters)

  1755.             self.ui.peak_out.setVisible(showMeters)

  1756. 

  1757.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1758.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1759.             self.ui.scrollArea.setVisible(showKeyboard)

  1760. 

  1761.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1762. 

  1763.             settingsDBf = QSettings("falkTX", "CarlaDatabase2")

  1764.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], type=list)

  1765. 

  1766.         # TODO - complete this

  1767. 

  1768.         self.fSavedSettings = {

  1769.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1770.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1771.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1772.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1773.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1774.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1775.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1776.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1777.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1778.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1779.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1780.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1781.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1782.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1783.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     type=bool),

  1784.             CARLA_KEY_CANVAS_INLINE_DISPLAYS:   settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS,   CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS,   type=bool),

  1785.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1786.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1787.         }

  1788. 

  1789.         settings2 = QSettings("falkTX", "Carla2")

  1790. 

  1791.         if self.host.experimental:

  1792.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1793.             self.ui.act_plugin_add_jack.setVisible(visible)

  1794.         else:

  1795.             self.ui.act_plugin_add_jack.setVisible(False)

  1796. 

  1797.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1798. 

  1799.         setEngineSettings(self.host)

  1800.         self.restartTimersIfNeeded()

  1801. 

  1802.         return settings

  1803. 

  1804.     # --------------------------------------------------------------------------------------------------------

  1805.     # Settings (helpers)

  1806. 

  1807.     def enableTransport(self, enabled):

  1808.         self.ui.group_transport_controls.setEnabled(enabled)

  1809.         self.ui.group_transport_settings.setEnabled(enabled)

  1810. 

  1811.     @pyqtSlot()

  1812.     def slot_restoreCanvasScrollbarValues(self):

  1813.         settings = QSettings()

  1814.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1815.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1816. 

  1817.     # --------------------------------------------------------------------------------------------------------

  1818.     # Settings (menu actions)

  1819. 

  1820.     @pyqtSlot(bool)

  1821.     def slot_showSidePanel(self, yesNo):

  1822.         self.ui.dockWidget.setEnabled(yesNo)

  1823.         self.ui.dockWidget.setVisible(yesNo)

  1824. 

  1825.     @pyqtSlot(bool)

  1826.     def slot_showToolbar(self, yesNo):

  1827.         self.ui.toolBar.setEnabled(yesNo)

  1828.         self.ui.toolBar.setVisible(yesNo)

  1829. 

  1830.     @pyqtSlot(bool)

  1831.     def slot_showCanvasMeters(self, yesNo):

  1832.         self.ui.peak_in.setVisible(yesNo)

  1833.         self.ui.peak_out.setVisible(yesNo)

  1834.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1835. 

  1836.     @pyqtSlot(bool)

  1837.     def slot_showCanvasKeyboard(self, yesNo):

  1838.         self.ui.scrollArea.setVisible(yesNo)

  1839.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1840. 

  1841.     @pyqtSlot()

  1842.     def slot_configureCarla(self):

  1843.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1844.         if not dialog.exec_():

  1845.             return

  1846. 

  1847.         self.loadSettings(False)

  1848. 

  1849.         patchcanvas.clear()

  1850. 

  1851.         self.setupCanvas()

  1852.         self.slot_miniCanvasCheckAll()

  1853. 

  1854.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1855.             pass

  1856.         elif self.host.is_engine_running():

  1857.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1858. 

  1859.     # --------------------------------------------------------------------------------------------------------

  1860.     # About (menu actions)

  1861. 

  1862.     @pyqtSlot()

  1863.     def slot_aboutCarla(self):

  1864.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1865. 

  1866.     @pyqtSlot()

  1867.     def slot_aboutJuce(self):

  1868.         JuceAboutW(self.fParentOrSelf).exec_()

  1869. 

  1870.     @pyqtSlot()

  1871.     def slot_aboutQt(self):

  1872.         QApplication.instance().aboutQt()

  1873. 

  1874.     # --------------------------------------------------------------------------------------------------------

  1875.     # Disk (menu actions)

  1876. 

  1877.     @pyqtSlot(int)

  1878.     def slot_diskFolderChanged(self, index):

  1879.         if index < 0:

  1880.             return

  1881.         elif index == 0:

  1882.             filename = HOME

  1883.             self.ui.b_disk_remove.setEnabled(False)

  1884.         else:

  1885.             filename = self.ui.cb_disk.itemData(index)

  1886.             self.ui.b_disk_remove.setEnabled(True)

  1887. 

  1888.         self.fDirModel.setRootPath(filename)

  1889.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1890. 

  1891.     @pyqtSlot()

  1892.     def slot_diskFolderAdd(self):

  1893.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1894. 

  1895.         if newPath:

  1896.             if newPath[-1] == os.sep:

  1897.                 newPath = newPath[:-1]

  1898.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1899.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1900.             self.ui.b_disk_remove.setEnabled(True)

  1901. 

  1902.     @pyqtSlot()

  1903.     def slot_diskFolderRemove(self):

  1904.         index = self.ui.cb_disk.currentIndex()

  1905. 

  1906.         if index <= 0:

  1907.             return

  1908. 

  1909.         self.ui.cb_disk.removeItem(index)

  1910. 

  1911.         if self.ui.cb_disk.currentIndex() == 0:

  1912.             self.ui.b_disk_remove.setEnabled(False)

  1913. 

  1914.     @pyqtSlot(QModelIndex)

  1915.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1916.         filename = self.fDirModel.filePath(modelIndex)

  1917. 

  1918.         if not self.ui.listWidget.isDragUrlValid(filename):

  1919.             return

  1920. 

  1921.         if not self.host.load_file(filename):

  1922.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1923.                              self.tr("Failed to load file"),

  1924.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1925. 

  1926.     # --------------------------------------------------------------------------------------------------------

  1927.     # Transport

  1928. 

  1929.     def refreshTransport(self, forced = False):

  1930.         if not self.ui.l_transport_time.isVisible():

  1931.             return

  1932.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1933.             return

  1934. 

  1935.         timeInfo = self.host.get_transport_info()

  1936.         playing  = timeInfo['playing']

  1937.         frame    = timeInfo['frame']

  1938.         bpm      = timeInfo['bpm']

  1939. 

  1940.         if playing != self.fLastTransportState or forced:

  1941.             if playing:

  1942.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1943.                 self.ui.b_transport_play.setChecked(True)

  1944.                 self.ui.b_transport_play.setIcon(icon)

  1945.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1946.             else:

  1947.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1948.                 self.ui.b_transport_play.setChecked(False)

  1949.                 self.ui.b_transport_play.setIcon(icon)

  1950.                 #self.ui.b_play.setText(self.tr("&Play"))

  1951. 

  1952.             self.fLastTransportState = playing

  1953. 

  1954.         if frame != self.fLastTransportFrame or forced:

  1955.             self.fLastTransportFrame = frame

  1956. 

  1957.             time = frame / self.fSampleRate

  1958.             secs =  time % 60

  1959.             mins = (time / 60) % 60

  1960.             hrs  = (time / 3600) % 60

  1961.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1962. 

  1963.             frame1 =  frame % 1000

  1964.             frame2 = (frame / 1000) % 1000

  1965.             frame3 = (frame / 1000000) % 1000

  1966.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1967. 

  1968.             bar  = timeInfo['bar']

  1969.             beat = timeInfo['beat']

  1970.             tick = timeInfo['tick']

  1971.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1972. 

  1973.         if bpm != self.fLastTransportBPM or forced:

  1974.             self.fLastTransportBPM = bpm

  1975. 

  1976.             if bpm > 0.0:

  1977.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1978.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1979.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1980.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1981.             else:

  1982.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1983. 

  1984.     # --------------------------------------------------------------------------------------------------------

  1985.     # Transport (menu actions)

  1986. 

  1987.     @pyqtSlot(bool)

  1988.     def slot_transportPlayPause(self, toggled):

  1989.         if self.host.isPlugin or not self.host.is_engine_running():

  1990.             return

  1991. 

  1992.         if toggled:

  1993.             self.host.transport_play()

  1994.         else:

  1995.             self.host.transport_pause()

  1996. 

  1997.         self.refreshTransport()

  1998. 

  1999.     @pyqtSlot()

  2000.     def slot_transportStop(self):

  2001.         if self.host.isPlugin or not self.host.is_engine_running():

  2002.             return

  2003. 

  2004.         self.host.transport_pause()

  2005.         self.host.transport_relocate(0)

  2006. 

  2007.         self.refreshTransport()

  2008. 

  2009.     @pyqtSlot()

  2010.     def slot_transportBackwards(self):

  2011.         if self.host.isPlugin or not self.host.is_engine_running():

  2012.             return

  2013. 

  2014.         newFrame = self.host.get_current_transport_frame() - 100000

  2015. 

  2016.         if newFrame < 0:

  2017.             newFrame = 0

  2018. 

  2019.         self.host.transport_relocate(newFrame)

  2020. 

  2021.     @pyqtSlot(float)

  2022.     def slot_transportBpmChanged(self, newValue):

  2023.         self.host.transport_bpm(newValue)

  2024. 

  2025.     @pyqtSlot()

  2026.     def slot_transportForwards(self):

  2027.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2028.             return

  2029. 

  2030.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2031.         self.host.transport_relocate(newFrame)

  2032. 

  2033.     @pyqtSlot(bool)

  2034.     def slot_transportJackEnabled(self, clicked):

  2035.         if not self.host.is_engine_running():

  2036.             return

  2037.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2038.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2039.                                     self.host.transportMode,

  2040.                                     self.host.transportExtra)

  2041. 

  2042.     @pyqtSlot(bool)

  2043.     def slot_transportLinkEnabled(self, clicked):

  2044.         if not self.host.is_engine_running():

  2045.             return

  2046.         extra = ":link:" if clicked else ""

  2047.         self.host.transportExtra = extra

  2048.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2049.                                     self.host.transportMode,

  2050.                                     self.host.transportExtra)

  2051. 

  2052.     # --------------------------------------------------------------------------------------------------------

  2053.     # Other

  2054. 

  2055.     @pyqtSlot(bool)

  2056.     def slot_xrunClear(self):

  2057.         self.host.clear_engine_xruns()

  2058. 

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

  2060.     # Canvas scrollbars

  2061. 

  2062.     @pyqtSlot(int)

  2063.     def slot_horizontalScrollBarChanged(self, value):

  2064.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2065.         if maximum == 0:

  2066.             xp = 0

  2067.         else:

  2068.             xp = float(value) / maximum

  2069.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2070.         self.updateCanvasInitialPos()

  2071. 

  2072.     @pyqtSlot(int)

  2073.     def slot_verticalScrollBarChanged(self, value):

  2074.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2075.         if maximum == 0:

  2076.             yp = 0

  2077.         else:

  2078.             yp = float(value) / maximum

  2079.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2080.         self.updateCanvasInitialPos()

  2081. 

  2082.     # --------------------------------------------------------------------------------------------------------

  2083.     # Canvas keyboard

  2084. 

  2085.     @pyqtSlot(int)

  2086.     def slot_noteOn(self, note):

  2087.         for pluginId in self.fSelectedPlugins:

  2088.             self.host.send_midi_note(pluginId, 0, note, 100)

  2089. 

  2090.             pedit = self.getPluginEditDialog(pluginId)

  2091.             pedit.noteOn(0, note, 100)

  2092. 

  2093.     @pyqtSlot(int)

  2094.     def slot_noteOff(self, note):

  2095.         for pluginId in self.fSelectedPlugins:

  2096.             self.host.send_midi_note(pluginId, 0, note, 0)

  2097. 

  2098.             pedit = self.getPluginEditDialog(pluginId)

  2099.             pedit.noteOff(0, note)

  2100. 

  2101.     # --------------------------------------------------------------------------------------------------------

  2102.     # Canvas keyboard (host callbacks)

  2103. 

  2104.     @pyqtSlot(int, int, int, int)

  2105.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2106.         if pluginId in self.fSelectedPlugins:

  2107.             self.ui.keyboard.sendNoteOn(note, False)

  2108. 

  2109.     @pyqtSlot(int, int, int)

  2110.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2111.         if pluginId in self.fSelectedPlugins:

  2112.             self.ui.keyboard.sendNoteOff(note, False)

  2113. 

  2114.     # --------------------------------------------------------------------------------------------------------

  2115. 

  2116.     @pyqtSlot(int)

  2117.     def slot_handleUpdateCallback(self, pluginId):

  2118.         pitem = self.getPluginItem(pluginId)

  2119. 

  2120.         if pitem is None:

  2121.             return

  2122. 

  2123.         wasCompacted = pitem.isCompacted()

  2124.         isCompacted  = wasCompacted

  2125. 

  2126.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2127.         if not check:

  2128.             return

  2129.         isCompacted = bool(check == "true")

  2130. 

  2131.         if wasCompacted == isCompacted:

  2132.             return

  2133. 

  2134.         pitem.recreateWidget(True)

  2135. 

  2136.     # --------------------------------------------------------------------------------------------------------

  2137.     # MiniCanvas stuff

  2138. 

  2139.     @pyqtSlot()

  2140.     def slot_miniCanvasCheckAll(self):

  2141.         self.slot_miniCanvasCheckSize()

  2142.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2143.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2144. 

  2145.     @pyqtSlot()

  2146.     def slot_miniCanvasCheckSize(self):

  2147.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2148.             return

  2149. 

  2150.         currentIndex = self.ui.tabWidget.currentIndex()

  2151. 

  2152.         if currentIndex == 1:

  2153.             width  = self.ui.graphicsView.width()

  2154.             height = self.ui.graphicsView.height()

  2155.         else:

  2156.             self.ui.tabWidget.blockSignals(True)

  2157.             self.ui.tabWidget.setCurrentIndex(1)

  2158.             width  = self.ui.graphicsView.width()

  2159.             height = self.ui.graphicsView.height()

  2160.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2161.             self.ui.tabWidget.blockSignals(False)

  2162. 

  2163.         self.scene.updateLimits()

  2164. 

  2165.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2166. 

  2167.     @pyqtSlot(float, float)

  2168.     def slot_miniCanvasMoved(self, xp, yp):

  2169.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2170.         vsb = self.ui.graphicsView.verticalScrollBar()

  2171.         hsb.setValue(xp * hsb.maximum())

  2172.         vsb.setValue(yp * vsb.maximum())

  2173.         self.updateCanvasInitialPos()

  2174. 

  2175.     # --------------------------------------------------------------------------------------------------------

  2176.     # Timers

  2177. 

  2178.     def startTimers(self):

  2179.         if self.fIdleTimerFast == 0:

  2180.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2181. 

  2182.         if self.fIdleTimerSlow == 0:

  2183.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2184. 

  2185.     def restartTimersIfNeeded(self):

  2186.         if self.fIdleTimerFast != 0:

  2187.             self.killTimer(self.fIdleTimerFast)

  2188.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2189. 

  2190.         if self.fIdleTimerSlow != 0:

  2191.             self.killTimer(self.fIdleTimerSlow)

  2192.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2193. 

  2194.     def killTimers(self):

  2195.         if self.fIdleTimerFast != 0:

  2196.             self.killTimer(self.fIdleTimerFast)

  2197.             self.fIdleTimerFast = 0

  2198. 

  2199.         if self.fIdleTimerSlow != 0:

  2200.             self.killTimer(self.fIdleTimerSlow)

  2201.             self.fIdleTimerSlow = 0

  2202. 

  2203.     # --------------------------------------------------------------------------------------------------------

  2204.     # Misc

  2205. 

  2206.     @pyqtSlot(int)

  2207.     def slot_tabChanged(self, index):

  2208.         if index != 1:

  2209.             return

  2210. 

  2211.         self.ui.graphicsView.setFocus()

  2212. 

  2213.     @pyqtSlot(int)

  2214.     def slot_handleReloadAllCallback(self, pluginId):

  2215.         if pluginId >= self.fPluginCount:

  2216.             return

  2217. 

  2218.         pitem = self.fPluginList[pluginId]

  2219.         if pitem is None:

  2220.             return

  2221. 

  2222.         pitem.recreateWidget()

  2223. 

  2224.     # --------------------------------------------------------------------------------------------------------

  2225. 

  2226.     @pyqtSlot(int, int, str)

  2227.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2228.         if opcode == NSM_CALLBACK_INIT:

  2229.             return

  2230. 

  2231.         # Error

  2232.         elif opcode == NSM_CALLBACK_ERROR:

  2233.             pass

  2234. 

  2235.         # Reply

  2236.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2237.             self.fFirstEngineInit    = False

  2238.             self.fSessionManagerName = valueStr

  2239.             self.setProperWindowTitle()

  2240. 

  2241.         # Open

  2242.         elif opcode == NSM_CALLBACK_OPEN:

  2243.             self.fClientName      = os.path.basename(valueStr)

  2244.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2245.             self.setProperWindowTitle()

  2246. 

  2247.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2248.             self.slot_engineStop(True)

  2249.             return

  2250. 

  2251.         # Save

  2252.         elif opcode == NSM_CALLBACK_SAVE:

  2253.             self.saveProjectNow()

  2254. 

  2255.         # Session is Loaded

  2256.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2257.             pass

  2258. 

  2259.         # Show Optional Gui

  2260.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2261.             self.show()

  2262. 

  2263.         # Hide Optional Gui

  2264.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2265.             self.hide()

  2266. 

  2267.         self.host.nsm_ready(opcode)

  2268. 

  2269.     # --------------------------------------------------------------------------------------------------------

  2270. 

  2271.     def fixLogText(self, text):

  2272.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2273. 

  2274.     @pyqtSlot(int, int, int, int, float, str)

  2275.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2276.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2277. 

  2278.     @pyqtSlot(str)

  2279.     def slot_handleInfoCallback(self, info):

  2280.         QMessageBox.information(self, "Information", info)

  2281. 

  2282.     @pyqtSlot(str)

  2283.     def slot_handleErrorCallback(self, error):

  2284.         QMessageBox.critical(self, "Error", error)

  2285. 

  2286.     @pyqtSlot()

  2287.     def slot_handleQuitCallback(self):

  2288.         self.fIsProjectLoading = False

  2289.         self.killTimers()

  2290.         self.removeAllPlugins()

  2291.         self.projectLoadingFinished()

  2292. 

  2293.     @pyqtSlot(int)

  2294.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2295.         # FIXME

  2296.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2297.             patchcanvas.redrawPluginGroup(pluginId)

  2298. 

  2299.     # --------------------------------------------------------------------------------------------------------

  2300. 

  2301.     @pyqtSlot()

  2302.     def slot_handleSIGUSR1(self):

  2303.         print("Got SIGUSR1 -> Saving project now")

  2304.         self.slot_fileSave()

  2305. 

  2306.     @pyqtSlot()

  2307.     def slot_handleSIGTERM(self):

  2308.         print("Got SIGTERM -> Closing now")

  2309.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2310.         self.slot_engineStop(True)

  2311. 

  2312.     # --------------------------------------------------------------------------------------------------------

  2313.     # Internal stuff

  2314. 

  2315.     def getExtraPtr(self, plugin):

  2316.         ptype = plugin['type']

  2317. 

  2318.         if ptype == PLUGIN_LADSPA:

  2319.             uniqueId = plugin['uniqueId']

  2320. 

  2321.             self.maybeLoadRDFs()

  2322. 

  2323.             for rdfItem in self.fLadspaRdfList:

  2324.                 if rdfItem.UniqueID == uniqueId:

  2325.                     return pointer(rdfItem)

  2326. 

  2327.         elif ptype == PLUGIN_SF2:

  2328.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2329.                 return self._true

  2330. 

  2331.         return None

  2332. 

  2333.     def maybeLoadRDFs(self):

  2334.         if not self.fLadspaRdfNeedsUpdate:

  2335.             return

  2336. 

  2337.         self.fLadspaRdfNeedsUpdate = False

  2338.         self.fLadspaRdfList = []

  2339. 

  2340.         if not haveLRDF:

  2341.             return

  2342. 

  2343.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2344.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2345. 

  2346.         if os.path.exists(frLadspaFile):

  2347.             frLadspa = open(frLadspaFile, 'r')

  2348. 

  2349.             try:

  2350.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2351.             except:

  2352.                 pass

  2353. 

  2354.             frLadspa.close()

  2355. 

  2356.     # --------------------------------------------------------------------------------------------------------

  2357. 

  2358.     def getPluginCount(self):

  2359.         return self.fPluginCount

  2360. 

  2361.     def getPluginItem(self, pluginId):

  2362.         if pluginId >= self.fPluginCount:

  2363.             return None

  2364. 

  2365.         pitem = self.fPluginList[pluginId]

  2366.         if pitem is None:

  2367.             return None

  2368.         #if False:

  2369.             #return CarlaRackItem(self, 0, False)

  2370. 

  2371.         return pitem

  2372. 

  2373.     def getPluginEditDialog(self, pluginId):

  2374.         if pluginId >= self.fPluginCount:

  2375.             return None

  2376. 

  2377.         pitem = self.fPluginList[pluginId]

  2378.         if pitem is None:

  2379.             return None

  2380.         if False:

  2381.             return PluginEdit(self, self.host, 0)

  2382. 

  2383.         return pitem.getEditDialog()

  2384. 

  2385.     def getPluginSlotWidget(self, pluginId):

  2386.         if pluginId >= self.fPluginCount:

  2387.             return None

  2388. 

  2389.         pitem = self.fPluginList[pluginId]

  2390.         if pitem is None:

  2391.             return None

  2392.         #if False:

  2393.             #return AbstractPluginSlot()

  2394. 

  2395.         return pitem.getWidget()

  2396. 

  2397.     # --------------------------------------------------------------------------------------------------------

  2398. 

  2399.     def waitForPendingEvents(self):

  2400.         pass

  2401. 

  2402.     # --------------------------------------------------------------------------------------------------------

  2403.     # show/hide event

  2404. 

  2405.     def showEvent(self, event):

  2406.         self.getAndRefreshRuntimeInfo()

  2407.         self.refreshTransport(True)

  2408.         QMainWindow.showEvent(self, event)

  2409. 

  2410.         if QT_VERSION >= 0x50600:

  2411.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2412. 

  2413.         # set our gui as parent for all plugins UIs

  2414.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2415.             if MACOS:

  2416.                 nsViewPtr = int(self.winId())

  2417.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2418.             else:

  2419.                 winIdStr = "%x" % int(self.winId())

  2420.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2421. 

  2422.     def hideEvent(self, event):

  2423.         # disable parent

  2424.         if not (self.host.isControl or self.host.isPlugin):

  2425.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2426. 

  2427.         QMainWindow.hideEvent(self, event)

  2428. 

  2429.     # --------------------------------------------------------------------------------------------------------

  2430.     # resize event

  2431. 

  2432.     def resizeEvent(self, event):

  2433.         QMainWindow.resizeEvent(self, event)

  2434. 

  2435.         if self.fWithCanvas:

  2436.             self.slot_miniCanvasCheckSize()

  2437. 

  2438.     # --------------------------------------------------------------------------------------------------------

  2439.     # timer event

  2440. 

  2441.     def refreshRuntimeInfo(self, load, xruns):

  2442.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2443.         txt2 = "" if (xruns == 1) else "s"

  2444.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2445.         self.ui.pb_dsp_load.setValue(int(load))

  2446. 

  2447.     def getAndRefreshRuntimeInfo(self):

  2448.         if not self.ui.pb_dsp_load.isVisible():

  2449.             return

  2450.         if not self.host.is_engine_running():

  2451.             return

  2452.         info = self.host.get_runtime_engine_info()

  2453.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2454. 

  2455.     def idleFast(self):

  2456.         self.host.engine_idle()

  2457.         self.refreshTransport()

  2458. 

  2459.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2460.             return

  2461. 

  2462.         for pitem in self.fPluginList:

  2463.             if pitem is None:

  2464.                 break

  2465. 

  2466.             pitem.getWidget().idleFast()

  2467. 

  2468.         for pluginId in self.fSelectedPlugins:

  2469.             self.fPeaksCleared = False

  2470.             if self.ui.peak_in.isVisible():

  2471.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2472.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2473.             if self.ui.peak_out.isVisible():

  2474.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2475.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2476.             return

  2477. 

  2478.         if self.fPeaksCleared:

  2479.             return

  2480. 

  2481.         self.fPeaksCleared = True

  2482.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2483.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2484.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2485.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2486. 

  2487.     def idleSlow(self):

  2488.         self.getAndRefreshRuntimeInfo()

  2489. 

  2490.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2491.             return

  2492. 

  2493.         for pitem in self.fPluginList:

  2494.             if pitem is None:

  2495.                 break

  2496. 

  2497.             pitem.getWidget().idleSlow()

  2498. 

  2499.     def timerEvent(self, event):

  2500.         if event.timerId() == self.fIdleTimerFast:

  2501.             self.idleFast()

  2502. 

  2503.         elif event.timerId() == self.fIdleTimerSlow:

  2504.             self.idleSlow()

  2505. 

  2506.         QMainWindow.timerEvent(self, event)

  2507. 

  2508.     # --------------------------------------------------------------------------------------------------------

  2509.     # color/style change event

  2510. 

  2511.     def changeEvent(self, event):

  2512.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2513.             self.updateStyle()

  2514.         QWidget.changeEvent(self, event)

  2515. 

  2516.     def updateStyle(self):

  2517.         # Rack padding images setup

  2518.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2519.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2520. 

  2521.         min_value = 0.07

  2522. 

  2523.         if PYQT_VERSION >= 0x50600:

  2524.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2525.         else:

  2526.             value_fix = 1.5

  2527. 

  2528.         bg_color = self.ui.rack.palette().window().color()

  2529.         bg_value = 1.0 - bg_color.blackF()

  2530.         if bg_value != 0.0 and bg_value < min_value:

  2531.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2532.         else:

  2533.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2534. 

  2535.         painter = QPainter()

  2536.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2537. 

  2538.         painter.begin(rack_imgL)

  2539.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2540.         painter.setBrush(pad_color)

  2541.         painter.drawRect(fillRect)

  2542.         painter.end()

  2543.         rack_pixmapL = QPixmap(rack_imgL)

  2544.         self.imgL_palette = QPalette()

  2545.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2546.         self.ui.pad_left.setPalette(self.imgL_palette)

  2547.         self.ui.pad_left.setAutoFillBackground(True)

  2548. 

  2549.         painter.begin(rack_imgR)

  2550.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2551.         painter.setBrush(pad_color)

  2552.         painter.drawRect(fillRect)

  2553.         painter.end()

  2554.         rack_pixmapR = QPixmap(rack_imgR)

  2555.         self.imgR_palette = QPalette()

  2556.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2557.         self.ui.pad_right.setPalette(self.imgR_palette)

  2558.         self.ui.pad_right.setAutoFillBackground(True)

  2559. 

  2560.     # --------------------------------------------------------------------------------------------------------

  2561.     # paint event

  2562. 

  2563.     #def paintEvent(self, event):

  2564.         #QMainWindow.paintEvent(self, event)

  2565. 

  2566.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2567.             #return

  2568. 

  2569.         #painter = QPainter(self)

  2570.         #painter.setBrush(QColor(36, 36, 36))

  2571.         #painter.setPen(QColor(62, 62, 62))

  2572.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2573. 

  2574.     # --------------------------------------------------------------------------------------------------------

  2575.     # close event

  2576. 

  2577.     def shouldIgnoreClose(self):

  2578.         if self.host.isControl or self.host.isPlugin:

  2579.             return False

  2580.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2581.             return False

  2582.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2583.             return QMessageBox.question(self, self.tr("Quit"),

  2584.                                               self.tr("Are you sure you want to quit Carla?"),

  2585.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2586.         return False

  2587. 

  2588.     def closeEvent(self, event):

  2589.         if self.shouldIgnoreClose():

  2590.             event.ignore()

  2591.             return

  2592. 

  2593.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2594.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2595.             self.fMacClosingHelper = False

  2596.             event.ignore()

  2597. 

  2598.             for i in reversed(range(self.fPluginCount)):

  2599.                 self.host.show_custom_ui(i, False)

  2600. 

  2601.             QTimer.singleShot(100, self.close)

  2602.             return

  2603. 

  2604.         self.killTimers()

  2605.         self.saveSettings()

  2606. 

  2607.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2608.             if not self.slot_engineStop(True):

  2609.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2610.                 event.ignore()

  2611.                 return

  2612. 

  2613.         QMainWindow.closeEvent(self, event)

  2614. 

  2615. # ------------------------------------------------------------------------------------------------

  2616. # Canvas callback

  2617. 

  2618. def canvasCallback(action, value1, value2, valueStr):

  2619.     host = gCarla.gui.host

  2620. 

  2621.     if action == patchcanvas.ACTION_GROUP_INFO:

  2622.         pass

  2623. 

  2624.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2625.         pass

  2626. 

  2627.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2628.         groupId = value1

  2629.         patchcanvas.splitGroup(groupId)

  2630.         gCarla.gui.updateMiniCanvasLater()

  2631. 

  2632.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2633.         groupId = value1

  2634.         patchcanvas.joinGroup(groupId)

  2635.         gCarla.gui.updateMiniCanvasLater()

  2636. 

  2637.     elif action == patchcanvas.ACTION_PORT_INFO:

  2638.         pass

  2639. 

  2640.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2641.         pass

  2642. 

  2643.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2644.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2645. 

  2646.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2647.             print("Connection failed:", host.get_last_error())

  2648. 

  2649.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2650.         connectionId = value1

  2651. 

  2652.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2653.             print("Disconnect failed:", host.get_last_error())

  2654. 

  2655.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2656.         pluginId = value1

  2657. 

  2658.         if not host.clone_plugin(pluginId):

  2659.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2660.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2661. 

  2662.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2663.         pluginId = value1

  2664.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2665. 

  2666.         if pwidget is not None:

  2667.             pwidget.showEditDialog()

  2668. 

  2669.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2670.         pluginId = value1

  2671.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2672. 

  2673.         if pwidget is not None:

  2674.             pwidget.showRenameDialog()

  2675. 

  2676.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2677.         pluginId = value1

  2678.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2679. 

  2680.         if pwidget is not None:

  2681.             pwidget.showReplaceDialog()

  2682. 

  2683.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2684.         pluginId = value1

  2685. 

  2686.         if not host.remove_plugin(pluginId):

  2687.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2688.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2689. 

  2690.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2691.         pluginId = value1

  2692.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2693. 

  2694.         if pwidget is not None:

  2695.             pwidget.showCustomUI()

  2696. 

  2697.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2698.         gCarla.gui.showPluginActionsMenu()

  2699. 

  2700.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2701.         # FIXME

  2702.         if gCarla.gui.fPluginCount == 0: return

  2703.         pluginId = value1

  2704.         width, height = [int(v) for v in valueStr.split(":")]

  2705.         return host.render_inline_display(pluginId, width, height)

  2706. 

  2707. # ------------------------------------------------------------------------------------------------------------

  2708. # Engine callback

  2709. 

  2710. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2711.     # kdevelop likes this :)

  2712.     if False: host = CarlaHostNull()

  2713. 

  2714.     valueStr = charPtrToString(valueStr)

  2715. 

  2716.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2717.         host.processMode   = value1

  2718.         host.transportMode = value2

  2719.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2720.         host.processMode   = value1

  2721.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2722.         host.transportMode  = value1

  2723.         host.transportExtra = valueStr

  2724. 

  2725.     if action == ENGINE_CALLBACK_DEBUG:

  2726.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2727.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2728.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2729.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2730.         host.PluginRemovedCallback.emit(pluginId)

  2731.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2732.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2733.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2734.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2735.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2736.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2737.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2738.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2739.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2740.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2741.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2742.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2743.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2744.         host.ProgramChangedCallback.emit(pluginId, value1)

  2745.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2746.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2747.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2748.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2749.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2750.         host.UiStateChangedCallback.emit(pluginId, value1)

  2751.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2752.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2753.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2754.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2755.     elif action == ENGINE_CALLBACK_UPDATE:

  2756.         host.UpdateCallback.emit(pluginId)

  2757.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2758.         host.ReloadInfoCallback.emit(pluginId)

  2759.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2760.         host.ReloadParametersCallback.emit(pluginId)

  2761.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2762.         host.ReloadProgramsCallback.emit(pluginId)

  2763.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2764.         host.ReloadAllCallback.emit(pluginId)

  2765.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2766.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2767.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2768.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2769.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2770.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2771.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2772.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2773.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2774.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2775.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2776.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2777.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2778.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2779.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2780.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2781.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2782.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2783.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2784.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2785.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2786.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2787.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2788.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2789.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2790.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2791.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2792.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2793.         host.EngineStoppedCallback.emit()

  2794.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2795.         host.ProcessModeChangedCallback.emit(value1)

  2796.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2797.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2798.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2799.         host.BufferSizeChangedCallback.emit(value1)

  2800.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2801.         host.SampleRateChangedCallback.emit(valuef)

  2802.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2803.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2804.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2805.         host.ProjectLoadFinishedCallback.emit()

  2806.     elif action == ENGINE_CALLBACK_NSM:

  2807.         host.NSMCallback.emit(value1, value2, valueStr)

  2808.     elif action == ENGINE_CALLBACK_IDLE:

  2809.         QApplication.processEvents()

  2810.     elif action == ENGINE_CALLBACK_INFO:

  2811.         host.InfoCallback.emit(valueStr)

  2812.     elif action == ENGINE_CALLBACK_ERROR:

  2813.         host.ErrorCallback.emit(valueStr)

  2814.     elif action == ENGINE_CALLBACK_QUIT:

  2815.         host.QuitCallback.emit()

  2816.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2817.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2818.     else:

  2819.         print("unhandled action", action)

  2820. 

  2821. # ------------------------------------------------------------------------------------------------------------

  2822. # File callback

  2823. 

  2824. def fileCallback(ptr, action, isDir, title, filter):

  2825.     title  = charPtrToString(title)

  2826.     filter = charPtrToString(filter)

  2827. 

  2828.     if action == FILE_CALLBACK_OPEN:

  2829.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2830.     elif action == FILE_CALLBACK_SAVE:

  2831.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2832.     else:

  2833.         ret, ok = ("", "")

  2834. 

  2835.     # FIXME use ok value, test if it works as expected

  2836.     if not ret:

  2837.         return None

  2838. 

  2839.     # FIXME

  2840.     global fileRet

  2841.     fileRet = c_char_p(ret.encode("utf-8"))

  2842.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2843.     return retval.contents.value

  2844. 

  2845. # ------------------------------------------------------------------------------------------------------------

  2846. # Init host

  2847. 

  2848. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2849.     pathBinaries, pathResources = getPaths(libPrefix)

  2850. 

  2851.     # --------------------------------------------------------------------------------------------------------

  2852.     # Check if we should open main lib as local or global

  2853. 

  2854.     settings = QSettings("falkTX", "Carla2")

  2855. 

  2856.     try:

  2857.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2858.     except:

  2859.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2860. 

  2861.     # --------------------------------------------------------------------------------------------------------

  2862.     # Fail if binary dir is not found

  2863. 

  2864.     if not os.path.exists(pathBinaries):

  2865.         if failError:

  2866.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2867.             sys.exit(1)

  2868.         return

  2869. 

  2870.     # --------------------------------------------------------------------------------------------------------

  2871.     # Set Carla library name

  2872. 

  2873.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2874.     libname   = os.path.join(pathBinaries, libname)

  2875.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2876. 

  2877.     # --------------------------------------------------------------------------------------------------------

  2878.     # Print info

  2879. 

  2880.     print("Carla %s started, status:" % VERSION)

  2881.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2882.     print("  Qt version:     %s" % QT_VERSION_STR)

  2883.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2884.     print("  Binary dir:     %s" % pathBinaries)

  2885.     print("  Resources dir:  %s" % pathResources)

  2886. 

  2887.     # --------------------------------------------------------------------------------------------------------

  2888.     # Init host

  2889. 

  2890.     if failError:

  2891.         # no try

  2892.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2893.     else:

  2894.         try:

  2895.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2896.         except:

  2897.             host = CarlaHostQtNull()

  2898. 

  2899.     host.isControl = isControl

  2900.     host.isPlugin  = isPlugin

  2901. 

  2902.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2903.     host.set_file_callback(fileCallback)

  2904. 

  2905.     # If it's a plugin the paths are already set

  2906.     if not isPlugin:

  2907.         host.pathBinaries  = pathBinaries

  2908.         host.pathResources = pathResources

  2909.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2910.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2911. 

  2912.         if not isControl:

  2913.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2914. 

  2915.     # --------------------------------------------------------------------------------------------------------

  2916.     # Init utils

  2917. 

  2918.     gCarla.utils = CarlaUtils(utilsname)

  2919.     gCarla.utils.set_process_name(os.path.basename(initName))

  2920. 

  2921.     try:

  2922.         sys.stdout.flush()

  2923.     except:

  2924.         pass

  2925. 

  2926.     sys.stdout = CarlaPrint(False)

  2927.     sys.stderr = CarlaPrint(True)

  2928.     sys.excepthook = sys_excepthook

  2929. 

  2930.     # --------------------------------------------------------------------------------------------------------

  2931.     # Done

  2932. 

  2933.     return host

  2934. 

  2935. # ------------------------------------------------------------------------------------------------------------

  2936. # Load host settings

  2937. 

  2938. def loadHostSettings(host):

  2939.     # kdevelop likes this :)

  2940.     if False: host = CarlaHostNull()

  2941. 

  2942.     settings = QSettings("falkTX", "Carla2")

  2943. 

  2944.     try:

  2945.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2946.     except:

  2947.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2948. 

  2949.     try:

  2950.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2951.     except:

  2952.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2953. 

  2954.     try:

  2955.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2956.     except:

  2957.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2958. 

  2959.     try:

  2960.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2961.     except:

  2962.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2963. 

  2964.     try:

  2965.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2966.     except:

  2967.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2968. 

  2969.     try:

  2970.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2971.     except:

  2972.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2973. 

  2974.     try:

  2975.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2976.     except:

  2977.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2978. 

  2979.     try:

  2980.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2981.     except:

  2982.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2983. 

  2984.     try:

  2985.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2986.     except:

  2987.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2988. 

  2989.     try:

  2990.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2991.     except:

  2992.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2993. 

  2994.     try:

  2995.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2996.     except:

  2997.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2998. 

  2999.     try:

  3000.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  3001.     except:

  3002.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  3003. 

  3004.     try:

  3005.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  3006.     except:

  3007.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  3008. 

  3009.     if host.isPlugin:

  3010.         return

  3011. 

  3012.     try:

  3013.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  3014.     except:

  3015.         host.transportExtra = ""

  3016. 

  3017.     # enums

  3018.     if host.audioDriverForced is None:

  3019.         try:

  3020.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  3021.         except:

  3022.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  3023. 

  3024.     if not host.processModeForced:

  3025.         try:

  3026.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  3027.         except:

  3028.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  3029. 

  3030.     host.nextProcessMode = host.processMode

  3031. 

  3032.     # --------------------------------------------------------------------------------------------------------

  3033.     # fix things if needed

  3034. 

  3035.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3036.         if LADISH_APP_NAME:

  3037.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3038.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3039. 

  3040.         else:

  3041.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3042. 

  3043.     if gCarla.nogui:

  3044.         host.showLogs = False

  3045. 

  3046.     # --------------------------------------------------------------------------------------------------------

  3047.     # run headless host now if nogui option enabled

  3048. 

  3049.     if gCarla.nogui:

  3050.         runHostWithoutUI(host)

  3051. 

  3052. # ------------------------------------------------------------------------------------------------------------

  3053. # Set host settings

  3054. 

  3055. def setHostSettings(host):

  3056.     # kdevelop likes this :)

  3057.     if False: host = CarlaHostNull()

  3058. 

  3059.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3060.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3061.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3062.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3063.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3064.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3065.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3066. 

  3067.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3068.         return

  3069. 

  3070.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3071.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3072.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3073. 

  3074. # ------------------------------------------------------------------------------------------------------------

  3075. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3076. 

  3077. def setEngineSettings(host):

  3078.     # kdevelop likes this :)

  3079.     if False: host = CarlaHostNull()

  3080. 

  3081.     # --------------------------------------------------------------------------------------------------------

  3082.     # do nothing if control

  3083. 

  3084.     if host.isControl:

  3085.         return "Control"

  3086. 

  3087.     # --------------------------------------------------------------------------------------------------------

  3088. 

  3089.     settings = QSettings("falkTX", "Carla2")

  3090. 

  3091.     # --------------------------------------------------------------------------------------------------------

  3092.     # main settings

  3093. 

  3094.     setHostSettings(host)

  3095. 

  3096.     # --------------------------------------------------------------------------------------------------------

  3097.     # plugin paths

  3098. 

  3099.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  3100.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  3101.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  3102.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  3103.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  3104.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  3105.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  3106. 

  3107.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3108.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3109.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3110.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3111.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3112.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3113.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3114. 

  3115.     # --------------------------------------------------------------------------------------------------------

  3116.     # don't continue if plugin

  3117. 

  3118.     if host.isPlugin:

  3119.         return "Plugin"

  3120. 

  3121.     # --------------------------------------------------------------------------------------------------------

  3122.     # osc settings

  3123. 

  3124.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3125. 

  3126.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3127.         portNumTCP = -1

  3128.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3129.         portNumTCP = 0

  3130.     else:

  3131.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3132. 

  3133.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3134.         portNumUDP = -1

  3135.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3136.         portNumUDP = 0

  3137.     else:

  3138.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3139. 

  3140.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3141.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3142.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3143. 

  3144.     # --------------------------------------------------------------------------------------------------------

  3145.     # wine settings

  3146. 

  3147.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3148.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3149.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3150.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3151.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3152.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3153. 

  3154.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3155.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3156.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3157.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3158.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3159.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3160. 

  3161.     # --------------------------------------------------------------------------------------------------------

  3162.     # driver and device settings

  3163. 

  3164.     # driver name

  3165.     if host.audioDriverForced is not None:

  3166.         audioDriver = host.audioDriverForced

  3167.     else:

  3168.         try:

  3169.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3170.         except:

  3171.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3172. 

  3173.     # driver options

  3174.     try:

  3175.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3176.     except:

  3177.         audioDevice = ""

  3178. 

  3179.     try:

  3180.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3181.     except:

  3182.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3183. 

  3184.     try:

  3185.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3186.     except:

  3187.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3188. 

  3189.     try:

  3190.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3191.     except:

  3192.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3193. 

  3194.     # Only setup audio things if engine is not running

  3195.     if not host.is_engine_running():

  3196.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3197. 

  3198.         if not audioDriver.startswith("JACK"):

  3199.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3200.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3201.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3202. 

  3203.     # --------------------------------------------------------------------------------------------------------

  3204.     # fix things if needed

  3205. 

  3206.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3207.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3208.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3209. 

  3210.     # --------------------------------------------------------------------------------------------------------

  3211.     # return selected driver name

  3212. 

  3213.     return audioDriver

  3214. 

  3215. # ------------------------------------------------------------------------------------------------------------

  3216. # Run Carla without showing UI

  3217. 

  3218. def runHostWithoutUI(host):

  3219.     # kdevelop likes this :)

  3220.     if False: host = CarlaHostNull()

  3221. 

  3222.     # --------------------------------------------------------------------------------------------------------

  3223.     # Some initial checks

  3224. 

  3225.     if not gCarla.nogui:

  3226.         return

  3227. 

  3228.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3229. 

  3230.     if not projectFile:

  3231.         print("Carla no-gui mode can only be used together with a project file.")

  3232.         sys.exit(1)

  3233. 

  3234.     # --------------------------------------------------------------------------------------------------------

  3235.     # Additional imports

  3236. 

  3237.     from time import sleep

  3238. 

  3239.     # --------------------------------------------------------------------------------------------------------

  3240.     # Init engine

  3241. 

  3242.     audioDriver = setEngineSettings(host)

  3243.     if not host.engine_init(audioDriver, "Carla"):

  3244.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3245.         sys.exit(1)

  3246. 

  3247.     if not host.load_project(projectFile):

  3248.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3249.         host.engine_close()

  3250.         sys.exit(1)

  3251. 

  3252.     # --------------------------------------------------------------------------------------------------------

  3253.     # Idle

  3254. 

  3255.     print("Carla ready!")

  3256. 

  3257.     while host.is_engine_running() and not gCarla.term:

  3258.         host.engine_idle()

  3259.         sleep(0.0333) # 30 Hz

  3260. 

  3261.     # --------------------------------------------------------------------------------------------------------

  3262.     # Stop

  3263. 

  3264.     host.engine_close()

  3265.     sys.exit(0)

  3266. 

  3267. # ------------------------------------------------------------------------------------------------------------