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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. try:

  23.     from PyQt5.QtCore import QModelIndex, QTimer

  24.     from PyQt5.QtGui import QPalette

  25.     from PyQt5.QtWidgets import QApplication, QFileSystemModel, QMainWindow

  26. except:

  27.     from PyQt4.QtCore import QModelIndex, QTimer

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

  29. 

  30. # ------------------------------------------------------------------------------------------------------------

  31. # Imports (Custom)

  32. 

  33. import ui_carla_host

  34. 

  35. from carla_database import *

  36. from carla_settings import *

  37. from carla_style import *

  38. from carla_widgets import *

  39. 

  40. # ------------------------------------------------------------------------------------------------------------

  41. # PatchCanvas defines

  42. 

  43. CANVAS_ANTIALIASING_SMALL = 1

  44. CANVAS_EYECANDY_SMALL     = 1

  45. 

  46. # ------------------------------------------------------------------------------------------------------------

  47. # Session Management support

  48. 

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

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

  51. 

  52. # ------------------------------------------------------------------------------------------------------------

  53. # Dummy widget

  54. 

  55. class CarlaDummyW(object):

  56.     def __init__(self, parent):

  57.         object.__init__(self)

  58. 

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

  60. 

  61.     def getPluginCount(self):

  62.         return 0

  63. 

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

  65. 

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

  67.         pass

  68. 

  69.     def removePlugin(self, pluginId):

  70.         pass

  71. 

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

  73.         pass

  74. 

  75.     def removeAllPlugins(self):

  76.         pass

  77. 

  78.     # -----------------------------------------------------------------

  79. 

  80.     def engineStarted(self):

  81.         pass

  82. 

  83.     def engineStopped(self):

  84.         pass

  85. 

  86.     def engineChanged(self):

  87.         pass

  88. 

  89.     # -----------------------------------------------------------------

  90. 

  91.     def idleFast(self):

  92.         pass

  93. 

  94.     def idleSlow(self):

  95.         pass

  96. 

  97.     # -----------------------------------------------------------------

  98. 

  99.     def saveSettings(self, settings):

  100.         pass

  101. 

  102. # ------------------------------------------------------------------------------------------------------------

  103. # Host Window

  104. 

  105. class HostWindow(QMainWindow):

  106.     # signals

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

  108.     PluginAddedCallback = pyqtSignal(int)

  109.     PluginRemovedCallback = pyqtSignal(int)

  110.     PluginRenamedCallback = pyqtSignal(int, str)

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

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

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

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

  115.     ProgramChangedCallback = pyqtSignal(int, int)

  116.     MidiProgramChangedCallback = pyqtSignal(int, int)

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

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

  119.     ShowGuiCallback = pyqtSignal(int, int)

  120.     UpdateCallback = pyqtSignal(int)

  121.     ReloadInfoCallback = pyqtSignal(int)

  122.     ReloadParametersCallback = pyqtSignal(int)

  123.     ReloadProgramsCallback = pyqtSignal(int)

  124.     ReloadAllCallback = pyqtSignal(int)

  125.     PatchbayClientAddedCallback = pyqtSignal(int, str)

  126.     PatchbayClientRemovedCallback = pyqtSignal(int, str)

  127.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

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

  129.     PatchbayPortRemovedCallback = pyqtSignal(int, int, str)

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

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

  132.     PatchbayConnectionRemovedCallback = pyqtSignal(int)

  133.     PatchbayIconChangedCallback = pyqtSignal(int, str)

  134.     BufferSizeChangedCallback = pyqtSignal(int)

  135.     SampleRateChangedCallback = pyqtSignal(float)

  136.     ProcessModeChangedCallback = pyqtSignal(int)

  137.     EngineStartedCallback = pyqtSignal(str)

  138.     EngineStoppedChangedCallback = pyqtSignal()

  139.     NSM_AnnounceCallback = pyqtSignal(str)

  140.     NSM_OpenCallback = pyqtSignal(str)

  141.     NSM_SaveCallback = pyqtSignal()

  142.     ErrorCallback = pyqtSignal(str)

  143.     QuitCallback = pyqtSignal()

  144.     SIGTERM = pyqtSignal()

  145.     SIGUSR1 = pyqtSignal()

  146. 

  147.     def __init__(self, parent):

  148.         QMainWindow.__init__(self, parent)

  149.         self.ui = ui_carla_host.Ui_CarlaHostW()

  150.         self.ui.setupUi(self)

  151. 

  152.         if False:

  153.             Carla.gui = self

  154.             self.fContainer = CarlaDummyW(self)

  155. 

  156.         # -------------------------------------------------------------

  157.         # Set callback

  158. 

  159.         Carla.host.set_engine_callback(EngineCallback)

  160. 

  161.         # -------------------------------------------------------------

  162.         # Internal stuff

  163. 

  164.         self.fBufferSize = 0

  165.         self.fSampleRate = 0.0

  166. 

  167.         self.fIdleTimerFast = 0

  168.         self.fIdleTimerSlow = 0

  169. 

  170.         self.fIsProjectLoading = False

  171.         self.fProjectFilename  = ""

  172. 

  173.         self.fLadspaRdfNeedsUpdate = True

  174.         self.fLadspaRdfList = []

  175. 

  176.         self.fLastTransportFrame = 0

  177.         self.fLastTransportState = False

  178.         self.fTextTransport = ""

  179. 

  180.         self.fSavedSettings = {}

  181. 

  182.         if LADISH_APP_NAME:

  183.             self.fClientName         = LADISH_APP_NAME

  184.             self.fSessionManagerName = "LADISH"

  185.         elif NSM_URL:

  186.             self.fClientName         = "Carla.tmp"

  187.             self.fSessionManagerName = "Non Session Manager"

  188.         else:

  189.             self.fClientName         = "Carla"

  190.             self.fSessionManagerName = ""

  191. 

  192.         # -------------------------------------------------------------

  193.         # Load Settings

  194. 

  195.         self.loadSettings(True)

  196. 

  197.         # -------------------------------------------------------------

  198.         # Set up GUI (engine stopped)

  199. 

  200.         if Carla.isPlugin:

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

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

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

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

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

  206.         else:

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

  208. 

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

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

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

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

  213. 

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

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

  216. 

  217.         self.setTransportMenuEnabled(False)

  218. 

  219.         # -------------------------------------------------------------

  220.         # Set up GUI (right panel)

  221. 

  222.         self.fDirModel = QFileSystemModel(self)

  223.         self.fDirModel.setNameFilters(cString(Carla.host.get_supported_file_types()).split(";"))

  224.         self.fDirModel.setRootPath(HOME)

  225. 

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

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

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

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

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

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

  232. 

  233.         self.setProperWindowTitle()

  234. 

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

  236.         # Connect actions to functions

  237. 

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

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

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

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

  242. 

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

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

  245. 

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

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

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

  249. 

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

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

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

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

  254. 

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

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

  257. 

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

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

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

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

  262. 

  263.         self.DebugCallback.connect(self.slot_handleDebugCallback)

  264.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  265.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  266.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  267.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  268.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  269.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  270.         self.EngineStoppedChangedCallback.connect(self.slot_handleEngineStoppedCallback)

  271.         #self.NSM_AnnounceCallback.connect(self.slot_handleNSM_AnnounceCallback)

  272.         #self.NSM_OpenCallback.connect(self.slot_handleNSM_OpenCallback)

  273.         #self.NSM_SaveCallback.connect(self.slot_handleNSM_SaveCallback)

  274.         #self.ErrorCallback.connect(self.slot_handleErrorCallback)

  275.         #self.QuitCallback.connect(self.slot_handleQuitCallback)

  276. 

  277.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  278.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  279. 

  280.         # -------------------------------------------------------------

  281.         # Final setup

  282. 

  283.         if Carla.isPlugin:

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

  285.         elif NSM_URL:

  286.             Carla.host.nsm_ready()

  287. 

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

  289.     # Called by containers

  290. 

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

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

  293.         return dialog.exec_()

  294. 

  295.     def setupContainer(self, showMiniCanvas):

  296.         if showMiniCanvas:

  297.             CARLA_DEFAULT_CANVAS_WIDTH  = 3100

  298.             CARLA_DEFAULT_CANVAS_HEIGHT = 2400

  299.             self.ui.miniCanvasPreview.setRealParent(self)

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

  301.             self.ui.miniCanvasPreview.init(self.fContainer.scene, CARLA_DEFAULT_CANVAS_WIDTH, CARLA_DEFAULT_CANVAS_HEIGHT, self.fSavedSettings["UseCustomMiniCanvasPaint"])

  302.         else:

  303.               self.ui.miniCanvasPreview.hide()

  304. 

  305.         self.ui.mainwidget.hide()

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

  307.         del self.ui.mainwidget

  308. 

  309.     # -----------------------------------------------------------------

  310.     # Internal stuff (files)

  311. 

  312.     def loadProjectNow(self):

  313.         if not self.fProjectFilename:

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

  315. 

  316.         # TESTING

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

  318.             self.slot_engineStart()

  319. 

  320.         self.fIsProjectLoading = True

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

  322.         self.fIsProjectLoading = False

  323. 

  324.     @pyqtSlot()

  325.     def slot_loadProjectNow(self):

  326.         self.loadProjectNow()

  327. 

  328.     def loadProjectLater(self, filename):

  329.         self.fProjectFilename = filename

  330.         self.setProperWindowTitle()

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

  332. 

  333.     def saveProjectNow(self):

  334.         if not self.fProjectFilename:

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

  336. 

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

  338. 

  339.     # -----------------------------------------------------------------

  340.     # Internal stuff (engine)

  341. 

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

  343.         if Carla.isPlugin:

  344.             return "Plugin"

  345. 

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

  347. 

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

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

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

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

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

  353. 

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

  355. 

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

  357. 

  358.         if audioDriver == "JACK":

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

  360.             transportMode   = TRANSPORT_MODE_JACK

  361.         else:

  362.             transportMode   = TRANSPORT_MODE_INTERNAL

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

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

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

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

  367. 

  368.             Carla.host.set_engine_option(OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  369.             Carla.host.set_engine_option(OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  370.             Carla.host.set_engine_option(OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  371.             Carla.host.set_engine_option(OPTION_AUDIO_DEVICE,   0, audioDevice)

  372. 

  373.         if Carla.processMode == PROCESS_MODE_CONTINUOUS_RACK:

  374.             forceStereo = True

  375.         elif Carla.processMode == PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

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

  377.             Carla.processMode = PROCESS_MODE_SINGLE_CLIENT

  378. 

  379.         Carla.host.set_engine_option(OPTION_FORCE_STEREO,          forceStereo,         "")

  380.         Carla.host.set_engine_option(OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")

  381.         Carla.host.set_engine_option(OPTION_PREFER_UI_BRIDGES,     preferUiBridges,     "")

  382.         Carla.host.set_engine_option(OPTION_UIS_ALWAYS_ON_TOP,     uisAlwaysOnTop,      "")

  383.         Carla.host.set_engine_option(OPTION_UI_BRIDGES_TIMEOUT,    uiBridgesTimeout,    "")

  384.         Carla.host.set_engine_option(OPTION_PROCESS_MODE,          Carla.processMode,   "")

  385.         Carla.host.set_engine_option(OPTION_MAX_PARAMETERS,        Carla.maxParameters, "")

  386.         Carla.host.set_engine_option(OPTION_TRANSPORT_MODE,        transportMode,       "")

  387. 

  388.         return audioDriver

  389. 

  390.     def startEngine(self):

  391.         audioDriver = self.setEngineSettings()

  392. 

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

  394.             #if self.fFirstEngineInit:

  395.                 #self.fFirstEngineInit = False

  396.                 #return

  397. 

  398.             audioError = cString(Carla.host.get_last_error())

  399. 

  400.             if audioError:

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

  402.             else:

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

  404.             return

  405. 

  406.         self.fBufferSize = Carla.host.get_buffer_size()

  407.         self.fSampleRate = Carla.host.get_sample_rate()

  408. 

  409.         #self.fFirstEngineInit = False

  410. 

  411.         # Peaks and TimeInfo

  412.         self.fIdleTimerFast = self.startTimer(30) #self.fSavedSettings["Main/RefreshInterval"])

  413.         # LEDs and edit dialog parameters

  414.         self.fIdleTimerSlow = self.startTimer(self.fSavedSettings["Main/RefreshInterval"]*2)

  415. 

  416.     def stopEngine(self):

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

  418.             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"

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

  420.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  421.             if ask != QMessageBox.Yes:

  422.                 return

  423. 

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

  425.             self.fContainer.removeAllPlugins()

  426. 

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

  428.             print(cString(Carla.host.get_last_error()))

  429. 

  430.         self.fBufferSize = 0

  431.         self.fSampleRate = 0.0

  432. 

  433.         if self.fIdleTimerFast != 0:

  434.             self.killTimer(self.fIdleTimerFast)

  435.             self.fIdleTimerFast = 0

  436. 

  437.         if self.fIdleTimerSlow != 0:

  438.             self.killTimer(self.fIdleTimerSlow)

  439.             self.fIdleTimerSlow = 0

  440. 

  441.     # -----------------------------------------------------------------

  442.     # Internal stuff (plugins)

  443. 

  444.     def getExtraStuff(self, plugin):

  445.         ptype = plugin['type']

  446. 

  447.         if ptype == PLUGIN_LADSPA:

  448.             uniqueId = plugin['uniqueId']

  449. 

  450.             self.maybeLoadRDFs()

  451. 

  452.             for rdfItem in self.fLadspaRdfList:

  453.                 if rdfItem.UniqueID == uniqueId:

  454.                     return pointer(rdfItem)

  455. 

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

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

  458.                 # return a dummy non-null pointer

  459.                 INTPOINTER = POINTER(c_int)

  460.                 int1 = c_int(0x1)

  461.                 addr = addressof(int1)

  462.                 return cast(addr, INTPOINTER)

  463. 

  464.         return c_nullptr

  465. 

  466.     def maybeLoadRDFs(self):

  467.         if not self.fLadspaRdfNeedsUpdate:

  468.             return

  469. 

  470.         self.fLadspaRdfNeedsUpdate = False

  471.         self.fLadspaRdfList = []

  472. 

  473.         if not haveLRDF:

  474.             return

  475. 

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

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

  478. 

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

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

  481. 

  482.             try:

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

  484.             except:

  485.                 pass

  486. 

  487.             frLadspa.close()

  488. 

  489.     def setLoadRDFsNeeded(self):

  490.         self.fLadspaRdfNeedsUpdate = True

  491. 

  492.     # -----------------------------------------------------------------

  493.     # Internal stuff (transport)

  494. 

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

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

  497.             return

  498.         if self.fSampleRate == 0.0:

  499.             return

  500. 

  501.         timeInfo = Carla.host.get_transport_info()

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

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

  504. 

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

  506.             if playing:

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

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

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

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

  511.             else:

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

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

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

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

  516. 

  517.             self.fLastTransportState = playing

  518. 

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

  520.             time = frame / self.fSampleRate

  521.             secs = time % 60

  522.             mins = (time / 60) % 60

  523.             hrs  = (time / 3600) % 60

  524. 

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

  526.             self.fLastTransportFrame = frame

  527. 

  528.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  534. 

  535.     # -----------------------------------------------------------------

  536.     # Internal stuff (settings)

  537. 

  538.     def loadSettings(self, firstTime):

  539.         settings = QSettings()

  540. 

  541.         if firstTime:

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

  543. 

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

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

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

  547. 

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

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

  550.             #else:

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

  552. 

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

  554. 

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

  556. 

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

  558.                 if i == 0: continue

  559.                 folder = diskFolders[i]

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

  561. 

  562.             if MACOS and not settings.value("Main/UseProTheme", True, type=bool):

  563.                 self.setUnifiedTitleAndToolBarOnMac(True)

  564. 

  565.         # ---------------------------------------------

  566.         # plugin checks

  567. 

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

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

  570. 

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

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

  573. 

  574.         # ---------------------------------------------

  575. 

  576.         if not Carla.isPlugin:

  577.             # engine

  578.             self.setEngineSettings(settings)

  579. 

  580.             # plugin paths

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

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

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

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

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

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

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

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

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

  590. 

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

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

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

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

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

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

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

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

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

  600. 

  601.         # ---------------------------------------------

  602. 

  603.         # TODO

  604. 

  605.         self.fSavedSettings = {

  606.             "Main/DefaultProjectFolder":       settings.value("Main/DefaultProjectFolder",       HOME, type=str),

  607.             "Main/RefreshInterval":            settings.value("Main/RefreshInterval",            50, type=int),

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

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

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

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

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

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

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

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

  616.             "UseCustomMiniCanvasPaint":       (settings.value("Main/UseProTheme", True, type=bool) and

  617.                                                settings.value("Main/ProThemeColor", "Black", type=str).lower() == "black")

  618.         }

  619. 

  620.         # ---------------------------------------------

  621. 

  622.         if self.fIdleTimerFast != 0:

  623.             self.killTimer(self.fIdleTimerFast)

  624.             self.fIdleTimerFast = self.startTimer(30) #self.fSavedSettings["Main/RefreshInterval"])

  625. 

  626.         if self.fIdleTimerSlow != 0:

  627.             self.killTimer(self.fIdleTimerSlow)

  628.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings["Main/RefreshInterval"]*2)

  629. 

  630.     def saveSettings(self):

  631.         settings = QSettings()

  632. 

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

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

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

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

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

  638. 

  639.         diskFolders = []

  640. 

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

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

  643. 

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

  645. 

  646.         self.fContainer.saveSettings(settings)

  647. 

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

  649.     # Internal stuff (gui)

  650. 

  651.     def setProperWindowTitle(self):

  652.         title = self.fClientName

  653. 

  654.         if self.fProjectFilename:

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

  656.         if self.fSessionManagerName:

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

  658. 

  659.         self.setWindowTitle(title)

  660. 

  661.     # -----------------------------------------------------------------

  662. 

  663.     @pyqtSlot()

  664.     def slot_fileNew(self):

  665.         self.fContainer.removeAllPlugins()

  666.         self.fProjectFilename = ""

  667.         self.setProperWindowTitle()

  668. 

  669.     @pyqtSlot()

  670.     def slot_fileOpen(self):

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

  672.         filenameTry = QFileDialog.getOpenFileName(self, self.tr("Open Carla Project File"), self.fSavedSettings["Main/DefaultProjectFolder"], filter=fileFilter)[0]

  673. 

  674.         if not filenameTry:

  675.             return

  676. 

  677.         newFile = True

  678. 

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

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

  681.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  682.             newFile = ask == QMessageBox.Yes

  683. 

  684.         if newFile:

  685.             self.fContainer.removeAllPlugins()

  686.             self.fProjectFilename = filenameTry

  687.             self.setProperWindowTitle()

  688.             self.loadProjectNow()

  689.         else:

  690.             filenameOld = self.fProjectFilename

  691.             self.fProjectFilename = filenameTry

  692.             self.loadProjectNow()

  693.             self.fProjectFilename = filenameOld

  694. 

  695.     @pyqtSlot()

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

  697.         if self.fProjectFilename and not saveAs:

  698.             return self.saveProjectNow()

  699. 

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

  701.         filenameTry = QFileDialog.getSaveFileName(self, self.tr("Save Carla Project File"), self.fSavedSettings["Main/DefaultProjectFolder"], filter=fileFilter)[0]

  702. 

  703.         if not filenameTry:

  704.             return

  705. 

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

  707.             filenameTry += ".carxp"

  708. 

  709.         if self.fProjectFilename != filenameTry:

  710.             self.fProjectFilename = filenameTry

  711.             self.setProperWindowTitle()

  712. 

  713.         self.saveProjectNow()

  714. 

  715.     @pyqtSlot()

  716.     def slot_fileSaveAs(self):

  717.         self.slot_fileSave(True)

  718. 

  719.     # -----------------------------------------------------------------

  720. 

  721.     @pyqtSlot()

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

  723.         if doStart: self.startEngine()

  724. 

  725.         check = Carla.host.is_engine_running()

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

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

  728. 

  729.         if not Carla.isPlugin:

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

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

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

  733. 

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

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

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

  737. 

  738.             self.setTransportMenuEnabled(check)

  739. 

  740.         if check:

  741.             if not Carla.isPlugin:

  742.                 self.refreshTransport(True)

  743. 

  744.             self.fContainer.engineStarted()

  745. 

  746.     @pyqtSlot()

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

  748.         if doStop: self.stopEngine()

  749. 

  750.         check = Carla.host.is_engine_running()

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

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

  753. 

  754.         if not Carla.isPlugin:

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

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

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

  758. 

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

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

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

  762. 

  763.             self.setTransportMenuEnabled(check)

  764. 

  765.         if not check:

  766.             self.fTextTransport = ""

  767.             self.fContainer.engineStopped()

  768. 

  769.     # -----------------------------------------------------------------

  770. 

  771.     @pyqtSlot()

  772.     def slot_pluginAdd(self):

  773.         dialog = PluginDatabaseW(self)

  774. 

  775.         if not dialog.exec_():

  776.             return

  777. 

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

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

  780.             return

  781. 

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

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

  784.         filename = dialog.fRetPlugin['binary']

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

  786.         extraStuff = self.getExtraStuff(dialog.fRetPlugin)

  787. 

  788.         if not Carla.host.add_plugin(btype, ptype, filename, None, label, c_nullptr):

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

  790.             return

  791. 

  792.     @pyqtSlot()

  793.     def slot_pluginRemoveAll(self):

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

  795.         self.fContainer.removeAllPlugins()

  796.         Carla.host.remove_all_plugins()

  797. 

  798.     # -----------------------------------------------------------------

  799. 

  800.     @pyqtSlot(bool)

  801.     def slot_transportPlayPause(self, toggled):

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

  803.             return

  804. 

  805.         if toggled:

  806.             Carla.host.transport_play()

  807.         else:

  808.             Carla.host.transport_pause()

  809. 

  810.         self.refreshTransport()

  811. 

  812.     @pyqtSlot()

  813.     def slot_transportStop(self):

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

  815.             return

  816. 

  817.         Carla.host.transport_pause()

  818.         Carla.host.transport_relocate(0)

  819. 

  820.         self.refreshTransport()

  821. 

  822.     @pyqtSlot()

  823.     def slot_transportBackwards(self):

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

  825.             return

  826. 

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

  828. 

  829.         if newFrame < 0:

  830.             newFrame = 0

  831. 

  832.         Carla.host.transport_relocate(newFrame)

  833. 

  834.     @pyqtSlot()

  835.     def slot_transportForwards(self):

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

  837.             return

  838. 

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

  840.         Carla.host.transport_relocate(newFrame)

  841. 

  842.     # -----------------------------------------------------------------

  843. 

  844.     @pyqtSlot()

  845.     def slot_aboutCarla(self):

  846.         CarlaAboutW(self).exec_()

  847. 

  848.     @pyqtSlot()

  849.     def slot_aboutQt(self):

  850.         QApplication.instance().aboutQt()

  851. 

  852.     # -----------------------------------------------------------------

  853. 

  854.     @pyqtSlot(int)

  855.     def slot_diskFolderChanged(self, index):

  856.         if index < 0:

  857.             return

  858.         elif index == 0:

  859.             filename = HOME

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

  861.         else:

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

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

  864. 

  865.         self.fDirModel.setRootPath(filename)

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

  867. 

  868.     @pyqtSlot()

  869.     def slot_diskFolderAdd(self):

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

  871. 

  872.         if newPath:

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

  874.                 newPath = newPath[:-1]

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

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

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

  878. 

  879.     @pyqtSlot()

  880.     def slot_diskFolderRemove(self):

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

  882. 

  883.         if index <= 0:

  884.             return

  885. 

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

  887. 

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

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

  890. 

  891.     @pyqtSlot(QModelIndex)

  892.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  894. 

  895.         if not Carla.host.load_filename(filename):

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

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

  898.                              cString(Carla.host.get_last_error()), QMessageBox.Ok, QMessageBox.Ok)

  899. 

  900.     # -----------------------------------------------------------------

  901. 

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

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

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

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

  906. 

  907.     @pyqtSlot(int)

  908.     def slot_handlePluginAddedCallback(self, pluginId):

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

  910. 

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

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

  913. 

  914.     @pyqtSlot(int)

  915.     def slot_handlePluginRemovedCallback(self, pluginId):

  916.         self.fContainer.removePlugin(pluginId)

  917. 

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

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

  920. 

  921.     @pyqtSlot(int, str)

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

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

  924. 

  925.     @pyqtSlot(int)

  926.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  927.         self.fBufferSize = newBufferSize

  928.         self.fContainer.engineChanged()

  929. 

  930.     @pyqtSlot(float)

  931.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  932.         self.fSampleRate = newSampleRate

  933.         self.fContainer.engineChanged()

  934. 

  935.     # -----------------------------------------------------------------

  936. 

  937.     @pyqtSlot(str)

  938.     def slot_handleEngineStartedCallback(self, driverName):

  939.         self.fBufferSize = Carla.host.get_buffer_size()

  940.         self.fSampleRate = Carla.host.get_sample_rate()

  941. 

  942.         if self.fIdleTimerFast == 0:

  943.             self.fIdleTimerFast = self.startTimer(30) #self.fSavedSettings["Main/RefreshInterval"])

  944.         if self.fIdleTimerSlow == 0:

  945.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings["Main/RefreshInterval"]*2)

  946. 

  947.         self.slot_engineStart(False)

  948. 

  949.     @pyqtSlot()

  950.     def slot_handleEngineStoppedCallback(self):

  951.         self.fBufferSize = 0

  952.         self.fSampleRate = 0.0

  953. 

  954.         if self.fIdleTimerFast != 0:

  955.             self.killTimer(self.fIdleTimerFast)

  956.             self.fIdleTimerFast = 0

  957. 

  958.         if self.fIdleTimerSlow != 0:

  959.             self.killTimer(self.fIdleTimerSlow)

  960.             self.fIdleTimerSlow = 0

  961. 

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

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

  964.             self.fContainer.removeAllPlugins() # FIXME?

  965. 

  966.         self.slot_engineStop(False)

  967. 

  968.     # -----------------------------------------------------------------

  969. 

  970.     @pyqtSlot()

  971.     def slot_handleSIGUSR1(self):

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

  973.         #QTimer.singleShot(0, self, SLOT("slot_fileSave)

  974. 

  975.     @pyqtSlot()

  976.     def slot_handleSIGTERM(self):

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

  978.         self.close()

  979. 

  980.     # -----------------------------------------------------------------

  981. 

  982.     def timerEvent(self, event):

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

  984.             if not Carla.isPlugin:

  985.                 Carla.host.engine_idle()

  986.                 self.refreshTransport()

  987. 

  988.             self.fContainer.idleFast()

  989. 

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

  991.             self.fContainer.idleSlow()

  992. 

  993.         QMainWindow.timerEvent(self, event)

  994. 

  995.     def closeEvent(self, event):

  996.         if self.fIdleTimerFast != 0:

  997.             self.killTimer(self.fIdleTimerFast)

  998.             self.fIdleTimerFast = 0

  999. 

  1000.         if self.fIdleTimerSlow != 0:

  1001.             self.killTimer(self.fIdleTimerSlow)

  1002.             self.fIdleTimerSlow = 0

  1003. 

  1004.         self.saveSettings()

  1005. 

  1006.         if Carla.host.is_engine_running():

  1007.             Carla.host.set_engine_about_to_close()

  1008.             self.ui.act_plugin_remove_all.setEnabled(False)

  1009.             self.fContainer.removeAllPlugins()

  1010.             self.stopEngine()

  1011. 

  1012.         QMainWindow.closeEvent(self, event)

  1013. 

  1014. # ------------------------------------------------------------------------------------------------------------

  1015. # Engine callback

  1016. 

  1017. def EngineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1018.     if pluginId < 0 or not Carla.gui:

  1019.         return

  1020. 

  1021.     if action == CALLBACK_DEBUG:

  1022.         Carla.gui.DebugCallback.emit(pluginId, value1, value2, value3, cString(valueStr))

  1023.     elif action == CALLBACK_PLUGIN_ADDED:

  1024.         Carla.gui.PluginAddedCallback.emit(pluginId)

  1025.     elif action == CALLBACK_PLUGIN_REMOVED:

  1026.         Carla.gui.PluginRemovedCallback.emit(pluginId)

  1027.     elif action == CALLBACK_PLUGIN_RENAMED:

  1028.         Carla.gui.PluginRenamedCallback.emit(pluginId, valueStr)

  1029.     elif action == CALLBACK_PARAMETER_VALUE_CHANGED:

  1030.         Carla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1031.     elif action == CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1032.         Carla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1033.     elif action == CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1034.         Carla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1035.     elif action == CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1036.         Carla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1037.     elif action == CALLBACK_PROGRAM_CHANGED:

  1038.         Carla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1039.     elif action == CALLBACK_MIDI_PROGRAM_CHANGED:

  1040.         Carla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1041.     elif action == CALLBACK_NOTE_ON:

  1042.         Carla.gui.NoteOnCallback.emit(pluginId, value1, value2, value3)

  1043.     elif action == CALLBACK_NOTE_OFF:

  1044.         Carla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1045.     elif action == CALLBACK_SHOW_GUI:

  1046.         Carla.gui.ShowGuiCallback.emit(pluginId, value1)

  1047.     elif action == CALLBACK_UPDATE:

  1048.         Carla.gui.UpdateCallback.emit(pluginId)

  1049.     elif action == CALLBACK_RELOAD_INFO:

  1050.         Carla.gui.ReloadInfoCallback.emit(pluginId)

  1051.     elif action == CALLBACK_RELOAD_PARAMETERS:

  1052.         Carla.gui.ReloadParametersCallback.emit(pluginId)

  1053.     elif action == CALLBACK_RELOAD_PROGRAMS:

  1054.         Carla.gui.ReloadProgramsCallback.emit(pluginId)

  1055.     elif action == CALLBACK_RELOAD_ALL:

  1056.         Carla.gui.ReloadAllCallback.emit(pluginId)

  1057.     elif action == CALLBACK_PATCHBAY_CLIENT_ADDED:

  1058.         Carla.gui.PatchbayClientAddedCallback.emit(value1, cString(valueStr))

  1059.     elif action == CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1060.         Carla.gui.PatchbayClientRemovedCallback.emit(value1, cString(valueStr))

  1061.     elif action == CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1062.         Carla.gui.PatchbayClientRenamedCallback.emit(value1, cString(valueStr))

  1063.     elif action == CALLBACK_PATCHBAY_PORT_ADDED:

  1064.         Carla.gui.PatchbayPortAddedCallback.emit(value1, value2, int(value3), cString(valueStr))

  1065.     elif action == CALLBACK_PATCHBAY_PORT_REMOVED:

  1066.         Carla.gui.PatchbayPortRemovedCallback.emit(value1, value2, cString(valueStr))

  1067.     elif action == CALLBACK_PATCHBAY_PORT_RENAMED:

  1068.         Carla.gui.PatchbayPortRenamedCallback.emit(value1, value2, cString(valueStr))

  1069.     elif action == CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1070.         Carla.gui.PatchbayConnectionAddedCallback.emit(value1, value2, value3)

  1071.     elif action == CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1072.         Carla.gui.PatchbayConnectionRemovedCallback.emit(value1)

  1073.     elif action == CALLBACK_PATCHBAY_ICON_CHANGED:

  1074.         Carla.gui.PatchbayIconChangedCallback.emit(value1, cString(valueStr))

  1075.     elif action == CALLBACK_BUFFER_SIZE_CHANGED:

  1076.         Carla.gui.BufferSizeChangedCallback.emit(value1)

  1077.     elif action == CALLBACK_SAMPLE_RATE_CHANGED:

  1078.         Carla.gui.SampleRateChangedCallback.emit(value3)

  1079.     elif action == CALLBACK_PROCESS_MODE_CHANGED:

  1080.         Carla.gui.ProcessModeChangedCallback.emit(value1)

  1081.     elif action == CALLBACK_ENGINE_STARTED:

  1082.         Carla.gui.EngineStartedCallback.emit(cString(valueStr))

  1083.     elif action == CALLBACK_ENGINE_STOPPED:

  1084.         Carla.gui.EngineStoppedChangedCallback.emit()

  1085.     elif action == CALLBACK_NSM_ANNOUNCE:

  1086.         Carla.gui.NSM_AnnounceCallback.emit(cString(valueStr))

  1087.     elif action == CALLBACK_NSM_OPEN:

  1088.         Carla.gui.NSM_OpenCallback.emit(cString(valueStr))

  1089.     elif action == CALLBACK_NSM_SAVE:

  1090.         Carla.gui.NSM_SaveCallback.emit()

  1091.     elif action == CALLBACK_ERROR:

  1092.         Carla.gui.ErrorCallback.emit(cString(valueStr))

  1093.     elif action == CALLBACK_QUIT:

  1094.         Carla.gui.QuitCallback.emit()