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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2013 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. from PyQt4.QtCore import qCritical, QModelIndex, QTimer

  23. from PyQt4.QtGui import QApplication, QFileSystemModel, QMainWindow, QPalette

  24. 

  25. # ------------------------------------------------------------------------------------------------------------

  26. # Imports (Custom)

  27. 

  28. import ui_carla_host

  29. 

  30. from carla_database import *

  31. from carla_settings import *

  32. from carla_style import *

  33. from carla_widgets import *

  34. 

  35. # ------------------------------------------------------------------------------------------------------------

  36. # PatchCanvas defines

  37. 

  38. CANVAS_ANTIALIASING_SMALL = 1

  39. CANVAS_EYECANDY_SMALL     = 1

  40. 

  41. # ------------------------------------------------------------------------------------------------------------

  42. # Session Management support

  43. 

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

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

  46. 

  47. # ------------------------------------------------------------------------------------------------------------

  48. # Dummy widget

  49. 

  50. class CarlaDummyW(object):

  51.     def __init__(self, parent):

  52.         object.__init__(self)

  53. 

  54.     # -----------------------------------------------------------------

  55. 

  56.     def getPluginCount(self):

  57.         return 0

  58. 

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

  60. 

  61.     def addPlugin(self, pluginId, isProjectLoading):

  62.         pass

  63. 

  64.     def removePlugin(self, pluginId):

  65.         pass

  66. 

  67.     def renamePlugin(self, pluginId, newName):

  68.         pass

  69. 

  70.     def disablePlugin(self, pluginId, errorMsg):

  71.         pass

  72. 

  73.     def removeAllPlugins(self):

  74.         pass

  75. 

  76.     # -----------------------------------------------------------------

  77. 

  78.     def engineStarted(self):

  79.         pass

  80. 

  81.     def engineStopped(self):

  82.         pass

  83. 

  84.     def engineChanged(self):

  85.         pass

  86. 

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

  88. 

  89.     def idleFast(self):

  90.         pass

  91. 

  92.     def idleSlow(self):

  93.         pass

  94. 

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

  96. 

  97.     def saveSettings(self, settings):

  98.         pass

  99. 

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

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

  104.     # signals

  105.     DebugCallback = pyqtSignal(int, int, int, float, str)

  106.     PluginAddedCallback = pyqtSignal(int, str)

  107.     PluginRemovedCallback = pyqtSignal(int)

  108.     PluginRenamedCallback = pyqtSignal(int, str)

  109.     PluginUnavailableCallback = pyqtSignal(int, str)

  110.     ParameterValueChangedCallback = pyqtSignal(int, int, float)

  111.     ParameterDefaultChangedCallback = pyqtSignal(int, int, float)

  112.     ParameterMidiCcChangedCallback = pyqtSignal(int, int, int)

  113.     ParameterMidiChannelChangedCallback = pyqtSignal(int, int, int)

  114.     ProgramChangedCallback = pyqtSignal(int, int)

  115.     MidiProgramChangedCallback = pyqtSignal(int, int)

  116.     UiStateChangedCallback = pyqtSignal(int, int)

  117.     NoteOnCallback = pyqtSignal(int, int, int, int)

  118.     NoteOffCallback = pyqtSignal(int, int, int)

  119.     UpdateCallback = pyqtSignal(int)

  120.     ReloadInfoCallback = pyqtSignal(int)

  121.     ReloadParametersCallback = pyqtSignal(int)

  122.     ReloadProgramsCallback = pyqtSignal(int)

  123.     ReloadAllCallback = pyqtSignal(int)

  124.     PatchbayClientAddedCallback = pyqtSignal(int, int, str)

  125.     PatchbayClientRemovedCallback = pyqtSignal(int)

  126.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

  127.     PatchbayClientIconChangedCallback = pyqtSignal(int, int)

  128.     PatchbayPortAddedCallback = pyqtSignal(int, int, int, str)

  129.     PatchbayPortRemovedCallback = pyqtSignal(int, int)

  130.     PatchbayPortRenamedCallback = pyqtSignal(int, int, str)

  131.     PatchbayConnectionAddedCallback = pyqtSignal(int, int, int)

  132.     PatchbayConnectionRemovedCallback = pyqtSignal(int, int, int)

  133.     EngineStartedCallback = pyqtSignal(int, int, str)

  134.     EngineStoppedCallback = pyqtSignal()

  135.     ProcessModeChangedCallback = pyqtSignal(int)

  136.     TransportModeChangedCallback = pyqtSignal(int)

  137.     BufferSizeChangedCallback = pyqtSignal(int)

  138.     SampleRateChangedCallback = pyqtSignal(float)

  139.     InfoCallback = pyqtSignal(str)

  140.     ErrorCallback = pyqtSignal(str)

  141.     QuitCallback = pyqtSignal()

  142.     SIGTERM = pyqtSignal()

  143.     SIGUSR1 = pyqtSignal()

  144. 

  145.     def __init__(self, parent):

  146.         QMainWindow.__init__(self, parent)

  147.         self.ui = ui_carla_host.Ui_CarlaHostW()

  148.         self.ui.setupUi(self)

  149. 

  150.         if False:

  151.             Carla.gui = self

  152.             self.fContainer = CarlaDummyW(self)

  153. 

  154.         # -------------------------------------------------------------

  155.         # Set callback, TODO put somewhere else

  156. 

  157.         Carla.host.set_engine_callback(engineCallback)

  158. 

  159.         # -------------------------------------------------------------

  160.         # Internal stuff

  161. 

  162.         self.fIdleTimerFast = 0

  163.         self.fIdleTimerSlow = 0

  164. 

  165.         self.fIsProjectLoading = False

  166.         self.fProjectFilename  = ""

  167. 

  168.         self.fLadspaRdfNeedsUpdate = True

  169.         self.fLadspaRdfList = []

  170. 

  171.         self.fLastTransportFrame = 0

  172.         self.fLastTransportState = False

  173.         self.fTransportText = ""

  174. 

  175.         # when true, call engineChanged() asap

  176.         self.fEngineChanged = False

  177. 

  178.         self.fSavedSettings = {}

  179. 

  180.         if LADISH_APP_NAME:

  181.             self.fClientName         = LADISH_APP_NAME

  182.             self.fSessionManagerName = "LADISH"

  183.         elif NSM_URL:

  184.             self.fClientName         = "Carla.tmp"

  185.             self.fSessionManagerName = "Non Session Manager"

  186.         else:

  187.             self.fClientName         = "Carla"

  188.             self.fSessionManagerName = ""

  189. 

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

  191.         # Load Settings

  192. 

  193.         self.loadSettings(True)

  194. 

  195.         # -------------------------------------------------------------

  196.         # Set up GUI (engine stopped)

  197. 

  198.         if Carla.isPlugin:

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

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

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

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

  203.         else:

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

  205. 

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

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

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

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

  210. 

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

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

  213. 

  214.         self.setTransportMenuEnabled(False)

  215. 

  216.         # -------------------------------------------------------------

  217.         # Set up GUI (right panel)

  218. 

  219.         self.fDirModel = QFileSystemModel(self)

  220.         self.fDirModel.setNameFilters(Carla.host.get_supported_file_extensions().split(";"))

  221.         self.fDirModel.setRootPath(HOME)

  222. 

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

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

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

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

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

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

  229. 

  230.         self.setProperWindowTitle()

  231. 

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

  233.         # Connect actions to functions

  234. 

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

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

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

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

  239. 

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

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

  242. 

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

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

  245.         self.ui.act_plugin_remove_all.triggered.connect(self.slot_pluginRemoveAll)

  246. 

  247.         self.ui.act_transport_play.triggered.connect(self.slot_transportPlayPause)

  248.         self.ui.act_transport_stop.triggered.connect(self.slot_transportStop)

  249.         self.ui.act_transport_backwards.triggered.connect(self.slot_transportBackwards)

  250.         self.ui.act_transport_forwards.triggered.connect(self.slot_transportForwards)

  251. 

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

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

  254. 

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

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

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

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

  259. 

  260.         self.DebugCallback.connect(self.slot_handleDebugCallback)

  261. 

  262.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  263.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  264.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  265.         self.PluginUnavailableCallback.connect(self.slot_handlePluginUnavailableCallback)

  266. 

  267.         # parameter (rack, patchbay)

  268.         # program, midi-program, ui-state (rack, patchbay)

  269.         # note on, off (rack, patchbay)

  270.         # update, reload (rack, patchbay)

  271.         # patchbay

  272. 

  273.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  274.         self.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  275. 

  276.         self.ProcessModeChangedCallback.connect(self.slot_handleProcessModeChangedCallback)

  277.         self.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  278. 

  279.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  280.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  281. 

  282.         self.InfoCallback.connect(self.slot_handleInfoCallback)

  283.         self.ErrorCallback.connect(self.slot_handleErrorCallback)

  284.         self.QuitCallback.connect(self.slot_handleQuitCallback)

  285. 

  286.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  287.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  288. 

  289.         # -------------------------------------------------------------

  290.         # Final setup

  291. 

  292.         if Carla.isPlugin:

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

  294. 

  295.     # -----------------------------------------------------------------

  296.     # Called by containers

  297. 

  298.     def openSettingsWindow(self, hasCanvas, hasCanvasGL):

  299.         dialog = CarlaSettingsW(self, hasCanvas, hasCanvasGL)

  300.         return dialog.exec_()

  301. 

  302.     def setupContainer(self, showMiniCanvas, canvasThemeData = []):

  303.         if showMiniCanvas:

  304.             canvasWidth, canvasHeight, canvasBg, canvasBrush, canvasPen = canvasThemeData

  305.             self.ui.miniCanvasPreview.setViewTheme(canvasBg, canvasBrush, canvasPen)

  306.             self.ui.miniCanvasPreview.init(self.fContainer.scene, canvasWidth, canvasHeight, self.fSavedSettings["UseCustomMiniCanvasPaint"])

  307.         else:

  308.             self.ui.miniCanvasPreview.hide()

  309. 

  310.         self.ui.mainwidget.hide()

  311.         del self.ui.mainwidget

  312.         self.ui.splitter.insertWidget(0, self.fContainer)

  313. 

  314.     def updateContainer(self, canvasThemeData):

  315.         canvasWidth, canvasHeight, canvasBg, canvasBrush, canvasPen = canvasThemeData

  316.         self.ui.miniCanvasPreview.setViewTheme(canvasBg, canvasBrush, canvasPen)

  317.         self.ui.miniCanvasPreview.init(self.fContainer.scene, canvasWidth, canvasHeight, self.fSavedSettings["UseCustomMiniCanvasPaint"])

  318. 

  319.     # -----------------------------------------------------------------

  320.     # Internal stuff (files)

  321. 

  322.     def loadProjectNow(self):

  323.         if not self.fProjectFilename:

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

  325. 

  326.         # TESTING

  327.         if not Carla.host.is_engine_running():

  328.             self.slot_engineStart()

  329. 

  330.         self.fIsProjectLoading = True

  331.         Carla.host.load_project(self.fProjectFilename)

  332.         self.fIsProjectLoading = False

  333. 

  334.     @pyqtSlot()

  335.     def slot_loadProjectNow(self):

  336.         self.loadProjectNow()

  337. 

  338.     def loadProjectLater(self, filename):

  339.         self.fProjectFilename = filename

  340.         self.setProperWindowTitle()

  341.         QTimer.singleShot(0, self.slot_loadProjectNow)

  342. 

  343.     def saveProjectNow(self):

  344.         if not self.fProjectFilename:

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

  346. 

  347.         Carla.host.save_project(self.fProjectFilename)

  348. 

  349.     # -----------------------------------------------------------------

  350.     # Internal stuff (engine)

  351. 

  352.     def setEngineSettings(self, settings = None):

  353.         if Carla.isPlugin:

  354.             return "Plugin"

  355. 

  356.         if settings is None: settings = QSettings()

  357. 

  358.         forceStereo         = settings.value("Engine/ForceStereo",         CARLA_DEFAULT_FORCE_STEREO,          type=bool)

  359.         preferPluginBridges = settings.value("Engine/PreferPluginBridges", CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  360.         preferUiBridges     = settings.value("Engine/PreferUiBridges",     CARLA_DEFAULT_PREFER_UI_BRIDGES,     type=bool)

  361.         uisAlwaysOnTop      = settings.value("Engine/OscUiTimeout",        CARLA_DEFAULT_UIS_ALWAYS_ON_TOP,     type=bool)

  362.         uiBridgesTimeout    = settings.value("Engine/OscUiTimeout",        CARLA_DEFAULT_UI_BRIDGES_TIMEOUT,    type=int)

  363. 

  364.         Carla.maxParameters = settings.value("Engine/MaxParameters",       CARLA_DEFAULT_MAX_PARAMETERS,        type=int)

  365. 

  366.         audioDriver         = settings.value("Engine/AudioDriver",         CARLA_DEFAULT_AUDIO_DRIVER,          type=str)

  367. 

  368.         if audioDriver == "JACK":

  369.             #transportMode  = settings.value("Engine/TransportMode",       TRANSPORT_MODE_JACK,                 type=int)

  370.             transportMode   = ENGINE_TRANSPORT_MODE_JACK

  371.         else:

  372.             transportMode   = ENGINE_TRANSPORT_MODE_INTERNAL

  373.             audioNumPeriods = settings.value("Engine/AudioBufferSize", CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  374.             audioBufferSize = settings.value("Engine/AudioBufferSize", CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  375.             audioSampleRate = settings.value("Engine/AudioSampleRate", CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  376.             audioDevice     = settings.value("Engine/AudioDevice",     "",                              type=str)

  377. 

  378.             Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  379.             Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  380.             Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  381.             Carla.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,   0, audioDevice)

  382. 

  383.         if Carla.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  384.             forceStereo = True

  385.         elif Carla.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  386.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  387.             Carla.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  388. 

  389.         Carla.host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          forceStereo,         "")

  390.         Carla.host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")

  391.         Carla.host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     preferUiBridges,     "")

  392.         Carla.host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     uisAlwaysOnTop,      "")

  393.         Carla.host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    uiBridgesTimeout,    "")

  394.         Carla.host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          Carla.processMode,   "")

  395.         Carla.host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        Carla.maxParameters, "")

  396.         Carla.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        transportMode,       "")

  397. 

  398.         return audioDriver

  399. 

  400.     def startEngine(self):

  401.         audioDriver = self.setEngineSettings()

  402. 

  403.         if not Carla.host.engine_init(audioDriver, self.fClientName):

  404.             #if self.fFirstEngineInit:

  405.                 #self.fFirstEngineInit = False

  406.                 #return

  407. 

  408.             audioError = Carla.host.get_last_error()

  409. 

  410.             if audioError:

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

  412.             else:

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

  414.             return

  415. 

  416.         #self.fFirstEngineInit = False

  417. 

  418.     def stopEngine(self):

  419.         if self.fContainer.getPluginCount() > 0:

  420.             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"

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

  422.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  423.             if ask != QMessageBox.Yes:

  424.                 return

  425. 

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

  427.             self.fContainer.removeAllPlugins()

  428. 

  429.         if Carla.host.is_engine_running() and not Carla.host.engine_close():

  430.             print(Carla.host.get_last_error())

  431. 

  432.     # -----------------------------------------------------------------

  433.     # Internal stuff (plugins)

  434. 

  435.     def getExtraPtr(self, plugin):

  436.         ptype = plugin['type']

  437. 

  438.         if ptype == PLUGIN_LADSPA:

  439.             uniqueId = plugin['uniqueId']

  440. 

  441.             self.maybeLoadRDFs()

  442. 

  443.             for rdfItem in self.fLadspaRdfList:

  444.                 if rdfItem.UniqueID == uniqueId:

  445.                     return pointer(rdfItem)

  446. 

  447.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2, PLUGIN_SFZ):

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

  449.                 # return a dummy non-null pointer

  450.                 INTPOINTER = POINTER(c_int)

  451.                 int1 = c_int(0x1)

  452.                 addr = addressof(int1)

  453.                 return cast(addr, INTPOINTER)

  454. 

  455.         return None

  456. 

  457.     def maybeLoadRDFs(self):

  458.         if not self.fLadspaRdfNeedsUpdate:

  459.             return

  460. 

  461.         self.fLadspaRdfNeedsUpdate = False

  462.         self.fLadspaRdfList = []

  463. 

  464.         if not haveLRDF:

  465.             return

  466. 

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

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

  469. 

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

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

  472. 

  473.             try:

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

  475.             except:

  476.                 pass

  477. 

  478.             frLadspa.close()

  479. 

  480.     def setLoadRDFsNeeded(self):

  481.         self.fLadspaRdfNeedsUpdate = True

  482. 

  483.     # -----------------------------------------------------------------

  484.     # Internal stuff (transport)

  485. 

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

  487.         if Carla.sampleRate == 0.0 or not Carla.host.is_engine_running():

  488.             return

  489. 

  490.         timeInfo = Carla.host.get_transport_info()

  491.         playing  = bool(timeInfo['playing'])

  492.         frame    = int(timeInfo['frame'])

  493. 

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

  495.             if playing:

  496.                 icon = getIcon("media-playback-pause")

  497.                 self.ui.act_transport_play.setChecked(True)

  498.                 self.ui.act_transport_play.setIcon(icon)

  499.                 self.ui.act_transport_play.setText(self.tr("&Pause"))

  500.             else:

  501.                 icon = getIcon("media-playback-start")

  502.                 self.ui.act_transport_play.setChecked(False)

  503.                 self.ui.act_transport_play.setIcon(icon)

  504.                 self.ui.act_transport_play.setText(self.tr("&Play"))

  505. 

  506.             self.fLastTransportState = playing

  507. 

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

  509.             time = frame / Carla.sampleRate

  510.             secs = time % 60

  511.             mins = (time / 60) % 60

  512.             hrs  = (time / 3600) % 60

  513. 

  514.             self.fTextTransport = "Transport %s, at %02i:%02i:%02i" % ("playing" if playing else "stopped", hrs, mins, secs)

  515.             self.fLastTransportFrame = frame

  516. 

  517.     def setTransportMenuEnabled(self, enabled):

  518.         self.ui.act_transport_play.setEnabled(enabled)

  519.         self.ui.act_transport_stop.setEnabled(enabled)

  520.         self.ui.act_transport_backwards.setEnabled(enabled)

  521.         self.ui.act_transport_forwards.setEnabled(enabled)

  522.         self.ui.menu_Transport.setEnabled(enabled)

  523. 

  524.     # -----------------------------------------------------------------

  525.     # Internal stuff (settings)

  526. 

  527.     def loadSettings(self, firstTime):

  528.         settings = QSettings()

  529. 

  530.         if firstTime:

  531.             self.restoreGeometry(settings.value("Geometry", ""))

  532. 

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

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

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

  536. 

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

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

  539.             #else:

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

  541. 

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

  543. 

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

  545. 

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

  547.                 if i == 0: continue

  548.                 folder = diskFolders[i]

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

  550. 

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

  552.                 self.setUnifiedTitleAndToolBarOnMac(True)

  553. 

  554.         # ---------------------------------------------

  555.         # plugin checks

  556. 

  557.         if settings.value("Engine/DisableChecks", False, type=bool):

  558.             os.environ["CARLA_DISCOVERY_NO_PROCESSING_CHECKS"] = "true"

  559. 

  560.         elif os.getenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS"):

  561.             os.environ.pop("CARLA_DISCOVERY_NO_PROCESSING_CHECKS")

  562. 

  563.         # ---------------------------------------------

  564. 

  565.         if not Carla.isPlugin:

  566.             # engine

  567.             self.setEngineSettings(settings)

  568. 

  569.             # plugin paths

  570.             LADSPA_PATH = toList(settings.value("Paths/LADSPA", Carla.DEFAULT_LADSPA_PATH))

  571.             DSSI_PATH   = toList(settings.value("Paths/DSSI",   Carla.DEFAULT_DSSI_PATH))

  572.             LV2_PATH    = toList(settings.value("Paths/LV2",    Carla.DEFAULT_LV2_PATH))

  573.             VST_PATH    = toList(settings.value("Paths/VST",    Carla.DEFAULT_VST_PATH))

  574.             AU_PATH     = toList(settings.value("Paths/AU",     Carla.DEFAULT_AU_PATH))

  575.             CSOUND_PATH = toList(settings.value("Paths/CSOUND", Carla.DEFAULT_CSOUND_PATH))

  576.             GIG_PATH    = toList(settings.value("Paths/GIG",    Carla.DEFAULT_GIG_PATH))

  577.             SF2_PATH    = toList(settings.value("Paths/SF2",    Carla.DEFAULT_SF2_PATH))

  578.             SFZ_PATH    = toList(settings.value("Paths/SFZ",    Carla.DEFAULT_SFZ_PATH))

  579. 

  580.             os.environ["LADSPA_PATH"] = splitter.join(LADSPA_PATH)

  581.             os.environ["DSSI_PATH"]   = splitter.join(DSSI_PATH)

  582.             os.environ["LV2_PATH"]    = splitter.join(LV2_PATH)

  583.             os.environ["VST_PATH"]    = splitter.join(VST_PATH)

  584.             os.environ["AU_PATH"]     = splitter.join(AU_PATH)

  585.             os.environ["CSOUND_PATH"] = splitter.join(CSOUND_PATH)

  586.             os.environ["GIG_PATH"]    = splitter.join(GIG_PATH)

  587.             os.environ["SF2_PATH"]    = splitter.join(SF2_PATH)

  588.             os.environ["SFZ_PATH"]    = splitter.join(SFZ_PATH)

  589. 

  590.         # ---------------------------------------------

  591. 

  592.         # TODO

  593. 

  594.         self.fSavedSettings = {

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

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

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

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

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

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

  601.             CARLA_KEY_CANVAS_EYE_CANDY:        settings.value(CARLA_KEY_CANVAS_EYE_CANDY,        CARLA_DEFAULT_CANVAS_EYE_CANDY,        type=int),

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

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

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

  605.             "UseCustomMiniCanvasPaint":       (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool) and

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

  607.         }

  608. 

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

  610. 

  611.         if self.fIdleTimerFast != 0:

  612.             self.killTimer(self.fIdleTimerFast)

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

  614. 

  615.         if self.fIdleTimerSlow != 0:

  616.             self.killTimer(self.fIdleTimerSlow)

  617.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  618. 

  619.     def saveSettings(self):

  620.         settings = QSettings()

  621. 

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

  623.         settings.setValue("SplitterState", self.ui.splitter.saveState())

  624.         settings.setValue("ShowToolbar", self.ui.toolBar.isVisible())

  625. 

  626.         diskFolders = []

  627. 

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

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

  630. 

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

  632. 

  633.         self.fContainer.saveSettings(settings)

  634. 

  635.     # -----------------------------------------------------------------

  636.     # Internal stuff (gui)

  637. 

  638.     def setProperWindowTitle(self):

  639.         title = self.fClientName

  640. 

  641.         if self.fProjectFilename:

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

  643.         if self.fSessionManagerName:

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

  645. 

  646.         self.setWindowTitle(title)

  647. 

  648.     # -----------------------------------------------------------------

  649. 

  650.     @pyqtSlot()

  651.     def slot_fileNew(self):

  652.         self.fContainer.removeAllPlugins()

  653.         self.fProjectFilename = ""

  654.         self.setProperWindowTitle()

  655. 

  656.     @pyqtSlot()

  657.     def slot_fileOpen(self):

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

  659.         filenameTry = QFileDialog.getOpenFileName(self, self.tr("Open Carla Project File"), self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], filter=fileFilter)[0]

  660. 

  661.         if not filenameTry:

  662.             return

  663. 

  664.         newFile = True

  665. 

  666.         if self.fContainer.getPluginCount() > 0:

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

  668.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  669.             newFile = ask == QMessageBox.Yes

  670. 

  671.         if newFile:

  672.             self.fContainer.removeAllPlugins()

  673.             self.fProjectFilename = filenameTry

  674.             self.setProperWindowTitle()

  675.             self.loadProjectNow()

  676.         else:

  677.             filenameOld = self.fProjectFilename

  678.             self.fProjectFilename = filenameTry

  679.             self.loadProjectNow()

  680.             self.fProjectFilename = filenameOld

  681. 

  682.     @pyqtSlot()

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

  684.         if self.fProjectFilename and not saveAs:

  685.             return self.saveProjectNow()

  686. 

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

  688.         filenameTry = QFileDialog.getSaveFileName(self, self.tr("Save Carla Project File"), self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], filter=fileFilter)[0]

  689. 

  690.         if not filenameTry:

  691.             return

  692. 

  693.         if not filenameTry.endswith(".carxp"):

  694.             filenameTry += ".carxp"

  695. 

  696.         if self.fProjectFilename != filenameTry:

  697.             self.fProjectFilename = filenameTry

  698.             self.setProperWindowTitle()

  699. 

  700.         self.saveProjectNow()

  701. 

  702.     @pyqtSlot()

  703.     def slot_fileSaveAs(self):

  704.         self.slot_fileSave(True)

  705. 

  706.     # -----------------------------------------------------------------

  707. 

  708.     @pyqtSlot()

  709.     def slot_engineStart(self, doStart = True):

  710.         if doStart: self.startEngine()

  711. 

  712.         check = Carla.host.is_engine_running()

  713.         self.ui.menu_PluginMacros.setEnabled(check)

  714.         self.ui.menu_Canvas.setEnabled(check)

  715. 

  716.         if not Carla.isPlugin:

  717.             self.ui.act_file_save.setEnabled(check)

  718.             self.ui.act_engine_start.setEnabled(not check)

  719.             self.ui.act_engine_stop.setEnabled(check)

  720. 

  721.             if self.fSessionManagerName != "Non Session Manager":

  722.                 self.ui.act_file_open.setEnabled(check)

  723.                 self.ui.act_file_save_as.setEnabled(check)

  724. 

  725.             self.setTransportMenuEnabled(check)

  726. 

  727.         if check:

  728.             if not Carla.isPlugin:

  729.                 self.refreshTransport(True)

  730. 

  731.             self.fContainer.engineStarted()

  732. 

  733.     @pyqtSlot()

  734.     def slot_engineStop(self, doStop = True):

  735.         if doStop: self.stopEngine()

  736. 

  737.         # FIXME?

  738.         if self.fContainer.getPluginCount() > 0:

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

  740.             self.fContainer.removeAllPlugins()

  741. 

  742.         check = Carla.host.is_engine_running()

  743.         self.ui.menu_PluginMacros.setEnabled(check)

  744.         self.ui.menu_Canvas.setEnabled(check)

  745. 

  746.         if not Carla.isPlugin:

  747.             self.ui.act_file_save.setEnabled(check)

  748.             self.ui.act_engine_start.setEnabled(not check)

  749.             self.ui.act_engine_stop.setEnabled(check)

  750. 

  751.             if self.fSessionManagerName != "Non Session Manager":

  752.                 self.ui.act_file_open.setEnabled(check)

  753.                 self.ui.act_file_save_as.setEnabled(check)

  754. 

  755.             self.setTransportMenuEnabled(check)

  756. 

  757.         if not check:

  758.             self.fTextTransport = ""

  759.             self.fContainer.engineStopped()

  760. 

  761.     # -----------------------------------------------------------------

  762. 

  763.     @pyqtSlot()

  764.     def slot_pluginAdd(self):

  765.         dialog = PluginDatabaseW(self)

  766. 

  767.         if not dialog.exec_():

  768.             return

  769. 

  770.         if not Carla.host.is_engine_running():

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

  772.             return

  773. 

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

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

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

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

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

  779. 

  780.         if not Carla.host.add_plugin(btype, ptype, filename, None, label, extraPtr):

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

  782.             return

  783. 

  784.     @pyqtSlot()

  785.     def slot_pluginRemoveAll(self):

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

  787.         self.fContainer.removeAllPlugins()

  788.         Carla.host.remove_all_plugins()

  789. 

  790.     # -----------------------------------------------------------------

  791. 

  792.     @pyqtSlot(bool)

  793.     def slot_transportPlayPause(self, toggled):

  794.         if not Carla.host.is_engine_running():

  795.             return

  796. 

  797.         if toggled:

  798.             Carla.host.transport_play()

  799.         else:

  800.             Carla.host.transport_pause()

  801. 

  802.         self.refreshTransport()

  803. 

  804.     @pyqtSlot()

  805.     def slot_transportStop(self):

  806.         if not Carla.host.is_engine_running():

  807.             return

  808. 

  809.         Carla.host.transport_pause()

  810.         Carla.host.transport_relocate(0)

  811. 

  812.         self.refreshTransport()

  813. 

  814.     @pyqtSlot()

  815.     def slot_transportBackwards(self):

  816.         if not Carla.host.is_engine_running():

  817.             return

  818. 

  819.         newFrame = Carla.host.get_current_transport_frame() - 100000

  820. 

  821.         if newFrame < 0:

  822.             newFrame = 0

  823. 

  824.         Carla.host.transport_relocate(newFrame)

  825. 

  826.     @pyqtSlot()

  827.     def slot_transportForwards(self):

  828.         if not Carla.host.is_engine_running():

  829.             return

  830. 

  831.         newFrame = Carla.host.get_current_transport_frame() + 100000

  832.         Carla.host.transport_relocate(newFrame)

  833. 

  834.     # -----------------------------------------------------------------

  835. 

  836.     @pyqtSlot()

  837.     def slot_aboutCarla(self):

  838.         CarlaAboutW(self).exec_()

  839. 

  840.     @pyqtSlot()

  841.     def slot_aboutQt(self):

  842.         QApplication.instance().aboutQt()

  843. 

  844.     # -----------------------------------------------------------------

  845. 

  846.     @pyqtSlot(int)

  847.     def slot_diskFolderChanged(self, index):

  848.         if index < 0:

  849.             return

  850.         elif index == 0:

  851.             filename = HOME

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

  853.         else:

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

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

  856. 

  857.         self.fDirModel.setRootPath(filename)

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

  859. 

  860.     @pyqtSlot()

  861.     def slot_diskFolderAdd(self):

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

  863. 

  864.         if newPath:

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

  866.                 newPath = newPath[:-1]

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

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

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

  870. 

  871.     @pyqtSlot()

  872.     def slot_diskFolderRemove(self):

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

  874. 

  875.         if index <= 0:

  876.             return

  877. 

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

  879. 

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

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

  882. 

  883.     @pyqtSlot(QModelIndex)

  884.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  886. 

  887.         if not Carla.host.load_file(filename):

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

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

  890.                              Carla.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  891. 

  892.     # -----------------------------------------------------------------

  893. 

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

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

  896.         print("DEBUG:", pluginId, value1, value2, value3, valueStr)

  897.         #self.ui.pte_log.appendPlainText(valueStr.replace("", "DEBUG: ").replace("", "ERROR: ").replace("", "").replace("\n", ""))

  898. 

  899.     # -----------------------------------------------------------------

  900. 

  901.     @pyqtSlot(int, str)

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

  903.         self.fContainer.addPlugin(pluginId, self.fIsProjectLoading)

  904. 

  905.         if self.fContainer.getPluginCount() == 1:

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

  907. 

  908.     @pyqtSlot(int)

  909.     def slot_handlePluginRemovedCallback(self, pluginId):

  910.         self.fContainer.removePlugin(pluginId)

  911. 

  912.         if self.fContainer.getPluginCount() == 0:

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

  914. 

  915.     @pyqtSlot(int, str)

  916.     def slot_handlePluginRenamedCallback(self, pluginId, newName):

  917.         self.fContainer.renamePlugin(pluginId, newName)

  918. 

  919.     @pyqtSlot(int, str)

  920.     def slot_handlePluginUnavailableCallback(self, pluginId, errorMsg):

  921.         self.fContainer.disablePlugin(pluginId, errorMsg)

  922. 

  923.     # -----------------------------------------------------------------

  924. 

  925.     @pyqtSlot(str)

  926.     def slot_handleEngineStartedCallback(self, processMode, transportMode, driverName):

  927.         Carla.processMode   = processMode

  928.         Carla.transportMode = transportMode

  929.         Carla.bufferSize    = Carla.host.get_buffer_size()

  930.         Carla.sampleRate    = Carla.host.get_sample_rate()

  931. 

  932.         self.slot_engineStart(False)

  933. 

  934.         if self.fIdleTimerFast == 0:

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

  936.         if self.fIdleTimerSlow == 0:

  937.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  938. 

  939.     @pyqtSlot()

  940.     def slot_handleEngineStoppedCallback(self):

  941.         if self.fIdleTimerFast != 0:

  942.             self.killTimer(self.fIdleTimerFast)

  943.             self.fIdleTimerFast = 0

  944. 

  945.         if self.fIdleTimerSlow != 0:

  946.             self.killTimer(self.fIdleTimerSlow)

  947.             self.fIdleTimerSlow = 0

  948. 

  949.         self.slot_engineStop(False)

  950. 

  951.         Carla.bufferSize = 0

  952.         Carla.sampleRate = 0.0

  953. 

  954.     # -----------------------------------------------------------------

  955. 

  956.     @pyqtSlot(int)

  957.     def slot_handleProcessModeChangedCallback(self, newProcessMode):

  958.         self.fEngineChanged = True

  959. 

  960.     @pyqtSlot(int)

  961.     def slot_handleTransportModeChangedCallback(self, newTransportMode):

  962.         self.fEngineChanged = True

  963. 

  964.     # -----------------------------------------------------------------

  965. 

  966.     @pyqtSlot(int)

  967.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  968.         self.fEngineChanged = True

  969. 

  970.     @pyqtSlot(float)

  971.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  972.         self.fEngineChanged = True

  973. 

  974.     # -----------------------------------------------------------------

  975. 

  976.     @pyqtSlot(str)

  977.     def slot_handleInfoCallback(self, info):

  978.         pass

  979. 

  980.     @pyqtSlot(str)

  981.     def slot_handleErrorCallback(self, error):

  982.         pass

  983. 

  984.     @pyqtSlot()

  985.     def slot_handleQuitCallback(self):

  986.         pass

  987. 

  988.     # -----------------------------------------------------------------

  989. 

  990.     @pyqtSlot()

  991.     def slot_handleSIGUSR1(self):

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

  993.         QTimer.singleShot(0, self.slot_fileSave)

  994. 

  995.     @pyqtSlot()

  996.     def slot_handleSIGTERM(self):

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

  998.         self.close()

  999. 

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

  1001. 

  1002.     def timerEvent(self, event):

  1003.         if event.timerId() == self.fIdleTimerFast:

  1004.             if not Carla.isPlugin:

  1005.                 Carla.host.engine_idle()

  1006.                 self.refreshTransport()

  1007. 

  1008.             self.fContainer.idleFast()

  1009. 

  1010.         elif event.timerId() == self.fIdleTimerSlow:

  1011.             if self.fEngineChanged:

  1012.                 self.fContainer.engineChanged()

  1013.                 self.fEngineChanged = False

  1014. 

  1015.             self.fContainer.idleSlow()

  1016. 

  1017.         QMainWindow.timerEvent(self, event)

  1018. 

  1019.     def closeEvent(self, event):

  1020.         if self.fIdleTimerFast != 0:

  1021.             self.killTimer(self.fIdleTimerFast)

  1022.             self.fIdleTimerFast = 0

  1023. 

  1024.         if self.fIdleTimerSlow != 0:

  1025.             self.killTimer(self.fIdleTimerSlow)

  1026.             self.fIdleTimerSlow = 0

  1027. 

  1028.         self.saveSettings()

  1029. 

  1030.         if Carla.host.is_engine_running():

  1031.             Carla.host.set_engine_about_to_close()

  1032.             self.ui.act_plugin_remove_all.setEnabled(False)

  1033.             self.fContainer.removeAllPlugins()

  1034.             self.stopEngine()

  1035. 

  1036.         QMainWindow.closeEvent(self, event)

  1037. 

  1038. # ------------------------------------------------------------------------------------------------------------

  1039. # Engine callback

  1040. 

  1041. def engineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1042.     if action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1043.         Carla.processMode = value1

  1044.         if Carla.gui is not None:

  1045.             Carla.gui.ProcessModeChangedCallback.emit(value1)

  1046.         return

  1047. 

  1048.     if action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1049.         Carla.transportMode = value1

  1050.         if Carla.gui is not None:

  1051.             Carla.gui.TransportModeChangedCallback.emit(value1)

  1052.         return

  1053. 

  1054.     if action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1055.         Carla.bufferSize = value1

  1056.         if Carla.gui is not None:

  1057.             Carla.gui.BufferSizeChangedCallback.emit(value1)

  1058.         return

  1059. 

  1060.     if action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1061.         Carla.sampleRate = value1

  1062.         if Carla.gui is not None:

  1063.             Carla.gui.SampleRateChangedCallback.emit(value3)

  1064.         return

  1065. 

  1066.     if Carla.gui is None:

  1067.         print("WARNING: Got engine callback but UI is not ready : ", pluginId, value1, value2, value3, valueStr)

  1068.         return

  1069. 

  1070.     valueStr = charPtrToString(valueStr)

  1071. 

  1072.     if action == ENGINE_CALLBACK_DEBUG:

  1073.         Carla.gui.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1074.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1075.         Carla.gui.PluginAddedCallback.emit(pluginId, valueStr)

  1076.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1077.         Carla.gui.PluginRemovedCallback.emit(pluginId)

  1078.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1079.         Carla.gui.PluginRenamedCallback.emit(pluginId, valueStr)

  1080.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1081.         Carla.gui.PluginUnavailableCallback.emit(pluginId, valueStr)

  1082.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1083.         Carla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1084.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1085.         Carla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1086.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1087.         Carla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1088.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1089.         Carla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1090.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1091.         Carla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1092.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1093.         Carla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1094.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1095.         Carla.gui.UiStateChangedCallback.emit(pluginId, value1)

  1096.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1097.         Carla.gui.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1098.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1099.         Carla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1100.     elif action == ENGINE_CALLBACK_UPDATE:

  1101.         Carla.gui.UpdateCallback.emit(pluginId)

  1102.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1103.         Carla.gui.ReloadInfoCallback.emit(pluginId)

  1104.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1105.         Carla.gui.ReloadParametersCallback.emit(pluginId)

  1106.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1107.         Carla.gui.ReloadProgramsCallback.emit(pluginId)

  1108.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1109.         Carla.gui.ReloadAllCallback.emit(pluginId)

  1110.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1111.         Carla.gui.PatchbayClientAddedCallback.emit(pluginId, value1, valueStr)

  1112.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1113.         Carla.gui.PatchbayClientRemovedCallback.emit(pluginId)

  1114.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1115.         Carla.gui.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1116.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ICON_CHANGED:

  1117.         Carla.gui.PatchbayClientIconChangedCallback.emit(pluginId, value1)

  1118.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1119.         Carla.gui.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1120.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1121.         Carla.gui.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1122.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1123.         Carla.gui.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1124.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1125.         Carla.gui.PatchbayConnectionAddedCallback.emit(pluginId, value1, value2)

  1126.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1127.         Carla.gui.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1128.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1129.         Carla.gui.EngineStartedCallback.emit(value1, value2, valueStr)

  1130.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1131.         Carla.gui.EngineStoppedCallback.emit()

  1132.     elif action == ENGINE_CALLBACK_INFO:

  1133.         Carla.gui.InfoCallback.emit(valueStr)

  1134.     elif action == ENGINE_CALLBACK_ERROR:

  1135.         Carla.gui.ErrorCallback.emit(valueStr)

  1136.     elif action == ENGINE_CALLBACK_QUIT:

  1137.         Carla.gui.QuitCallback.emit()