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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) 2011-2014 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 projectLoaded(self):

  98.         pass

  99. 

  100.     def saveSettings(self, settings):

  101.         pass

  102. 

  103.     def showEditDialog(self, pluginId):

  104.         pass

  105. 

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

  107. # Host Window

  108. 

  109. class HostWindow(QMainWindow):

  110.     # signals

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

  112.     PluginAddedCallback = pyqtSignal(int, str)

  113.     PluginRemovedCallback = pyqtSignal(int)

  114.     PluginRenamedCallback = pyqtSignal(int, str)

  115.     PluginUnavailableCallback = pyqtSignal(int, str)

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

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

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

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

  120.     ProgramChangedCallback = pyqtSignal(int, int)

  121.     MidiProgramChangedCallback = pyqtSignal(int, int)

  122.     UiStateChangedCallback = pyqtSignal(int, int)

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

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

  125.     UpdateCallback = pyqtSignal(int)

  126.     ReloadInfoCallback = pyqtSignal(int)

  127.     ReloadParametersCallback = pyqtSignal(int)

  128.     ReloadProgramsCallback = pyqtSignal(int)

  129.     ReloadAllCallback = pyqtSignal(int)

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

  131.     PatchbayClientRemovedCallback = pyqtSignal(int)

  132.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

  133.     PatchbayClientDataChangedCallback = pyqtSignal(int, int, int)

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

  135.     PatchbayPortRemovedCallback = pyqtSignal(int, int)

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

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

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

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

  140.     EngineStoppedCallback = pyqtSignal()

  141.     ProcessModeChangedCallback = pyqtSignal(int)

  142.     TransportModeChangedCallback = pyqtSignal(int)

  143.     BufferSizeChangedCallback = pyqtSignal(int)

  144.     SampleRateChangedCallback = pyqtSignal(float)

  145.     InfoCallback = pyqtSignal(str)

  146.     ErrorCallback = pyqtSignal(str)

  147.     QuitCallback = pyqtSignal()

  148.     SIGTERM = pyqtSignal()

  149.     SIGUSR1 = pyqtSignal()

  150. 

  151.     def __init__(self, parent):

  152.         QMainWindow.__init__(self, parent)

  153.         self.ui = ui_carla_host.Ui_CarlaHostW()

  154.         self.ui.setupUi(self)

  155. 

  156.         if False:

  157.             # kdevelop likes this :)

  158.             gCarla.gui  = self

  159.             gCarla.host = Host("")

  160.             self.fContainer = CarlaDummyW(self)

  161. 

  162.         # -------------------------------------------------------------

  163.         # Set callback, TODO put somewhere else

  164. 

  165.         if gCarla.host is not None:

  166.             gCarla.host.set_engine_callback(engineCallback)

  167.             gCarla.host.set_file_callback(fileCallback)

  168. 

  169.         # -------------------------------------------------------------

  170.         # Internal stuff

  171. 

  172.         self.fIdleTimerFast = 0

  173.         self.fIdleTimerSlow = 0

  174. 

  175.         self.fIsProjectLoading = False

  176.         self.fProjectFilename  = ""

  177. 

  178.         self.fLadspaRdfNeedsUpdate = True

  179.         self.fLadspaRdfList = []

  180. 

  181.         self.fLastTransportFrame = 0

  182.         self.fLastTransportState = False

  183.         self.fTransportText = ""

  184. 

  185.         # when true, call engineChanged() asap

  186.         self.fEngineChanged = False

  187. 

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

  189.         self.fFirstEngineInit = True

  190. 

  191.         self.fSavedSettings = {}

  192. 

  193.         if LADISH_APP_NAME:

  194.             self.fClientName         = LADISH_APP_NAME

  195.             self.fSessionManagerName = "LADISH"

  196.         elif NSM_URL:

  197.             self.fClientName         = "Carla.tmp"

  198.             self.fSessionManagerName = "Non Session Manager"

  199.         else:

  200.             self.fClientName         = "Carla"

  201.             self.fSessionManagerName = ""

  202. 

  203.         # -------------------------------------------------------------

  204.         # Load Settings

  205. 

  206.         self.loadSettings(True)

  207. 

  208.         # -------------------------------------------------------------

  209.         # Set up GUI (engine stopped)

  210. 

  211.         if gCarla.isPlugin:

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

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

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

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

  216.         else:

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

  218. 

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

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

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

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

  223. 

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

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

  226. 

  227.         self.setTransportMenuEnabled(False)

  228. 

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

  230.         # Set up GUI (right panel)

  231. 

  232.         self.fDirModel = QFileSystemModel(self)

  233.         self.fDirModel.setRootPath(HOME)

  234. 

  235.         if gCarla.host is not None:

  236.             self.fDirModel.setNameFilters(gCarla.host.get_supported_file_extensions().split(";"))

  237. 

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

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

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

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

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

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

  244. 

  245.         self.setProperWindowTitle()

  246. 

  247.         # -------------------------------------------------------------

  248.         # Connect actions to functions

  249. 

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

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

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

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

  254. 

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

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

  257. 

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

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

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

  261. 

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

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

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

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

  266. 

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

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

  269. 

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

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

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

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

  274. 

  275.         self.DebugCallback.connect(self.slot_handleDebugCallback)

  276. 

  277.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  278.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  279.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  280.         self.PluginUnavailableCallback.connect(self.slot_handlePluginUnavailableCallback)

  281. 

  282.         # parameter (rack, patchbay)

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

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

  285.         # update, reload (rack, patchbay)

  286.         # patchbay

  287. 

  288.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  289.         self.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  290. 

  291.         self.ProcessModeChangedCallback.connect(self.slot_handleProcessModeChangedCallback)

  292.         self.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  293. 

  294.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  295.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  296. 

  297.         self.InfoCallback.connect(self.slot_handleInfoCallback)

  298.         self.ErrorCallback.connect(self.slot_handleErrorCallback)

  299.         self.QuitCallback.connect(self.slot_handleQuitCallback)

  300. 

  301.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  302.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  303. 

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

  305.         # Final setup

  306. 

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

  308.         #QTimer.singleShot(2000, self.slot_test)

  309. 

  310.     #@pyqtSlot()

  311.     #def slot_test(self):

  312.         #print("test started")

  313.         #if not gCarla.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, "/usr/bin/zita-rev1", "name of client", "label of client", None):

  314.             #print(gCarla.host.get_last_error())

  315.         #print("test ended")

  316. 

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

  318.     # Called by containers

  319. 

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

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

  322.         return dialog.exec_()

  323. 

  324.     def setupContainer(self, showCanvas, canvasThemeData = []):

  325.         if showCanvas:

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

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

  328.             self.ui.miniCanvasPreview.init(self.fContainer.scene, canvasWidth, canvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  329.         else:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  344.             self.ui.miniCanvasPreview.hide()

  345. 

  346.         self.ui.splitter.insertWidget(1, self.fContainer)

  347. 

  348.     def updateContainer(self, canvasThemeData):

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

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

  351.         self.ui.miniCanvasPreview.init(self.fContainer.scene, canvasWidth, canvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  352. 

  353.     # -----------------------------------------------------------------

  354.     # Internal stuff (files)

  355. 

  356.     def loadProjectNow(self):

  357.         if not self.fProjectFilename:

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

  359. 

  360.         self.fIsProjectLoading = True

  361.         gCarla.host.load_project(self.fProjectFilename)

  362.         self.fIsProjectLoading = False

  363. 

  364.         self.fContainer.projectLoaded()

  365. 

  366.     @pyqtSlot()

  367.     def slot_loadProjectNow(self):

  368.         self.loadProjectNow()

  369. 

  370.     def loadProjectLater(self, filename):

  371.         self.fProjectFilename = filename

  372.         self.setProperWindowTitle()

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

  374. 

  375.     def saveProjectNow(self):

  376.         if not self.fProjectFilename:

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

  378. 

  379.         gCarla.host.save_project(self.fProjectFilename)

  380. 

  381.     # -----------------------------------------------------------------

  382.     # Internal stuff (engine)

  383. 

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

  385.         if gCarla.isPlugin:

  386.             return "Plugin"

  387. 

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

  389. 

  390.         # -------------------------------------------------------------

  391.         # read settings

  392. 

  393.         # bool values

  394.         try:

  395.             forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  396.         except:

  397.             forceStereo = CARLA_DEFAULT_FORCE_STEREO

  398. 

  399.         try:

  400.             preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  401.         except:

  402.             preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  403. 

  404.         try:

  405.             preferUiBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  406.         except:

  407.             preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  408. 

  409.         try:

  410.             uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  411.         except:

  412.             uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  413. 

  414.         # int values

  415.         try:

  416.             maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  417.         except:

  418.             maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  419. 

  420.         try:

  421.             uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  422.         except:

  423.             uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  424. 

  425.         # enums

  426.         try:

  427.             processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  428.         except:

  429.             processMode = CARLA_DEFAULT_PROCESS_MODE

  430. 

  431.         try:

  432.             transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  433.         except:

  434.             transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  435. 

  436.         # driver name

  437.         try:

  438.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  439.         except:

  440.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  441. 

  442.         # driver options

  443.         try:

  444.             audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  445.         except:

  446.             audioDevice = ""

  447. 

  448.         try:

  449.             audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  450.         except:

  451.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  452. 

  453.         try:

  454.             audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  455.         except:

  456.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  457. 

  458.         try:

  459.             audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  460.         except:

  461.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  462. 

  463.         # -------------------------------------------------------------

  464.         # fix things if needed

  465. 

  466.         if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  467.             forceStereo = True

  468.         elif processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

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

  470.             processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  471. 

  472.         if audioDriver != "JACK" and transportMode == ENGINE_TRANSPORT_MODE_JACK:

  473.             transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  474. 

  475.         # -------------------------------------------------------------

  476.         # apply to engine

  477. 

  478.         gCarla.host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          forceStereo,         "")

  479.         gCarla.host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     uisAlwaysOnTop,      "")

  480. 

  481.         if not gCarla.isPlugin:

  482.             gCarla.host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")

  483.             gCarla.host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     preferUiBridges,     "")

  484. 

  485.         gCarla.host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        maxParameters,       "")

  486.         gCarla.host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    uiBridgesTimeout,    "")

  487. 

  488.         gCarla.host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          processMode,         "")

  489.         gCarla.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        transportMode,       "")

  490. 

  491.         gCarla.host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS,     audioNumPeriods,     "")

  492.         gCarla.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE,     audioBufferSize,     "")

  493.         gCarla.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE,     audioSampleRate,     "")

  494.         gCarla.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,          0,                   audioDevice)

  495. 

  496.         # save this for later

  497.         gCarla.maxParameters = maxParameters

  498. 

  499.         # return selected driver name

  500.         return audioDriver

  501. 

  502.     def startEngine(self):

  503.         audioDriver = self.setEngineSettings()

  504. 

  505.         if not gCarla.host.engine_init(audioDriver, self.fClientName):

  506.             if self.fFirstEngineInit:

  507.                 self.fFirstEngineInit = False

  508.                 return

  509. 

  510.             audioError = gCarla.host.get_last_error()

  511. 

  512.             if audioError:

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

  514.             else:

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

  516.             return

  517. 

  518.         self.fFirstEngineInit = False

  519. 

  520.     def stopEngine(self):

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

  522.             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"

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

  524.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  525.             if ask != QMessageBox.Yes:

  526.                 return

  527. 

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

  529.             self.fContainer.removeAllPlugins()

  530. 

  531.         if gCarla.host.is_engine_running() and not gCarla.host.engine_close():

  532.             print(gCarla.host.get_last_error())

  533. 

  534.     # -----------------------------------------------------------------

  535.     # Internal stuff (plugins)

  536. 

  537.     def getExtraPtr(self, plugin):

  538.         ptype = plugin['type']

  539. 

  540.         if ptype == PLUGIN_LADSPA:

  541.             uniqueId = plugin['uniqueId']

  542. 

  543.             self.maybeLoadRDFs()

  544. 

  545.             for rdfItem in self.fLadspaRdfList:

  546.                 if rdfItem.UniqueID == uniqueId:

  547.                     return pointer(rdfItem)

  548. 

  549.         elif ptype in (PLUGIN_FILE_GIG, PLUGIN_FILE_SF2):

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

  551.                 return c_char_p("true".encode("utf-8"))

  552. 

  553.         return None

  554. 

  555.     def maybeLoadRDFs(self):

  556.         if not self.fLadspaRdfNeedsUpdate:

  557.             return

  558. 

  559.         self.fLadspaRdfNeedsUpdate = False

  560.         self.fLadspaRdfList = []

  561. 

  562.         if not haveLRDF:

  563.             return

  564. 

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

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

  567. 

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

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

  570. 

  571.             try:

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

  573.             except:

  574.                 pass

  575. 

  576.             frLadspa.close()

  577. 

  578.     def setLoadRDFsNeeded(self):

  579.         self.fLadspaRdfNeedsUpdate = True

  580. 

  581.     # -----------------------------------------------------------------

  582.     # Internal stuff (transport)

  583. 

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

  585.         if gCarla.sampleRate == 0.0 or not gCarla.host.is_engine_running():

  586.             return

  587. 

  588.         timeInfo = gCarla.host.get_transport_info()

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

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

  591. 

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

  593.             if playing:

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

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

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

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

  598.             else:

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

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

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

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

  603. 

  604.             self.fLastTransportState = playing

  605. 

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

  607.             time = frame / gCarla.sampleRate

  608.             secs = time % 60

  609.             mins = (time / 60) % 60

  610.             hrs  = (time / 3600) % 60

  611. 

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

  613.             self.fLastTransportFrame = frame

  614. 

  615.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  621. 

  622.     # -----------------------------------------------------------------

  623.     # Internal stuff (settings)

  624. 

  625.     def loadSettings(self, firstTime):

  626.         settings = QSettings()

  627. 

  628.         if firstTime:

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

  630. 

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

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

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

  634. 

  635.             if settings.contains("SplitterState"):

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

  637.             else:

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

  639. 

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

  641. 

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

  643. 

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

  645.                 if i == 0: continue

  646.                 folder = diskFolders[i]

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

  648. 

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

  650.                 self.setUnifiedTitleAndToolBarOnMac(True)

  651. 

  652.         # ---------------------------------------------

  653.         # plugin checks

  654. 

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

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

  657. 

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

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

  660. 

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

  662. 

  663.         if not gCarla.isPlugin:

  664.             # engine

  665.             self.setEngineSettings(settings)

  666. 

  667.             # plugin paths

  668.             LADSPA_PATH = toList(settings.value("Paths/LADSPA", gCarla.DEFAULT_LADSPA_PATH))

  669.             DSSI_PATH   = toList(settings.value("Paths/DSSI",   gCarla.DEFAULT_DSSI_PATH))

  670.             LV2_PATH    = toList(settings.value("Paths/LV2",    gCarla.DEFAULT_LV2_PATH))

  671.             VST_PATH    = toList(settings.value("Paths/VST",    gCarla.DEFAULT_VST_PATH))

  672.             AU_PATH     = toList(settings.value("Paths/AU",     gCarla.DEFAULT_AU_PATH))

  673.             CSOUND_PATH = toList(settings.value("Paths/CSOUND", gCarla.DEFAULT_CSOUND_PATH))

  674.             GIG_PATH    = toList(settings.value("Paths/GIG",    gCarla.DEFAULT_GIG_PATH))

  675.             SF2_PATH    = toList(settings.value("Paths/SF2",    gCarla.DEFAULT_SF2_PATH))

  676.             SFZ_PATH    = toList(settings.value("Paths/SFZ",    gCarla.DEFAULT_SFZ_PATH))

  677. 

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

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

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

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

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

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

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

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

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

  687. 

  688.         # ---------------------------------------------

  689. 

  690.         # TODO

  691. 

  692.         self.fSavedSettings = {

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

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

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

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

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

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

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

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

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

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

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

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

  705.         }

  706. 

  707.         # ---------------------------------------------

  708. 

  709.         if self.fIdleTimerFast != 0:

  710.             self.killTimer(self.fIdleTimerFast)

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

  712. 

  713.         if self.fIdleTimerSlow != 0:

  714.             self.killTimer(self.fIdleTimerSlow)

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

  716. 

  717.     def saveSettings(self):

  718.         settings = QSettings()

  719. 

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

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

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

  723. 

  724.         diskFolders = []

  725. 

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

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

  728. 

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

  730. 

  731.         self.fContainer.saveSettings(settings)

  732. 

  733.     # -----------------------------------------------------------------

  734.     # Internal stuff (gui)

  735. 

  736.     def killTimers(self):

  737.         if self.fIdleTimerFast != 0:

  738.             self.killTimer(self.fIdleTimerFast)

  739.             self.fIdleTimerFast = 0

  740. 

  741.         if self.fIdleTimerSlow != 0:

  742.             self.killTimer(self.fIdleTimerSlow)

  743.             self.fIdleTimerSlow = 0

  744. 

  745.     def setProperWindowTitle(self):

  746.         title = self.fClientName

  747. 

  748.         if self.fProjectFilename:

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

  750.         if self.fSessionManagerName:

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

  752. 

  753.         self.setWindowTitle(title)

  754. 

  755.     # -----------------------------------------------------------------

  756. 

  757.     @pyqtSlot()

  758.     def slot_fileNew(self):

  759.         self.fContainer.removeAllPlugins()

  760.         self.fProjectFilename = ""

  761.         self.setProperWindowTitle()

  762. 

  763.     @pyqtSlot()

  764.     def slot_fileOpen(self):

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

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

  767. 

  768.         if not filenameTry:

  769.             return

  770.         filename = filenameTry if isinstance(filenameTry, str) else filenameTry[0]

  771. 

  772.         newFile = True

  773. 

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

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

  776.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  778. 

  779.         if newFile:

  780.             self.fContainer.removeAllPlugins()

  781.             self.fProjectFilename = filename

  782.             self.setProperWindowTitle()

  783.             self.loadProjectNow()

  784.         else:

  785.             filenameOld = self.fProjectFilename

  786.             self.fProjectFilename = filename

  787.             self.loadProjectNow()

  788.             self.fProjectFilename = filenameOld

  789. 

  790.     @pyqtSlot()

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

  792.         if self.fProjectFilename and not saveAs:

  793.             return self.saveProjectNow()

  794. 

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

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

  797. 

  798.         if not filenameTry:

  799.             return

  800.         filename = filenameTry if isinstance(filenameTry, str) else filenameTry[0]

  801. 

  802.         if not filename.endswith(".carxp"):

  803.             filename += ".carxp"

  804. 

  805.         if self.fProjectFilename != filename:

  806.             self.fProjectFilename = filename

  807.             self.setProperWindowTitle()

  808. 

  809.         self.saveProjectNow()

  810. 

  811.     @pyqtSlot()

  812.     def slot_fileSaveAs(self):

  813.         self.slot_fileSave(True)

  814. 

  815.     # -----------------------------------------------------------------

  816. 

  817.     @pyqtSlot()

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

  819.         if doStart: self.startEngine()

  820. 

  821.         check = gCarla.host.is_engine_running()

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

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

  824. 

  825.         if not gCarla.isPlugin:

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

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

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

  829. 

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

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

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

  833. 

  834.             self.setTransportMenuEnabled(check)

  835. 

  836.         if check:

  837.             if not gCarla.isPlugin:

  838.                 self.refreshTransport(True)

  839. 

  840.             self.fContainer.engineStarted()

  841. 

  842.     @pyqtSlot()

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

  844.         if doStop: self.stopEngine()

  845. 

  846.         # FIXME?

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

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

  849.             self.fContainer.removeAllPlugins()

  850. 

  851.         check = gCarla.host.is_engine_running()

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

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

  854. 

  855.         if not gCarla.isPlugin:

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

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

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

  859. 

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

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

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

  863. 

  864.             self.setTransportMenuEnabled(check)

  865. 

  866.         if not check:

  867.             self.fTextTransport = ""

  868.             self.fContainer.engineStopped()

  869. 

  870.     # -----------------------------------------------------------------

  871. 

  872.     @pyqtSlot()

  873.     def slot_pluginAdd(self):

  874.         dialog = PluginDatabaseW(self)

  875. 

  876.         if not dialog.exec_():

  877.             return

  878. 

  879.         if not gCarla.host.is_engine_running():

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

  881.             return

  882. 

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

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

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

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

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

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

  889. 

  890.         if not gCarla.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr):

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

  892.             return

  893. 

  894.     @pyqtSlot()

  895.     def slot_pluginRemoveAll(self):

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

  897.         self.fContainer.removeAllPlugins()

  898.         gCarla.host.remove_all_plugins()

  899. 

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

  901. 

  902.     @pyqtSlot(bool)

  903.     def slot_transportPlayPause(self, toggled):

  904.         if not gCarla.host.is_engine_running():

  905.             return

  906. 

  907.         if toggled:

  908.             gCarla.host.transport_play()

  909.         else:

  910.             gCarla.host.transport_pause()

  911. 

  912.         self.refreshTransport()

  913. 

  914.     @pyqtSlot()

  915.     def slot_transportStop(self):

  916.         if not gCarla.host.is_engine_running():

  917.             return

  918. 

  919.         gCarla.host.transport_pause()

  920.         gCarla.host.transport_relocate(0)

  921. 

  922.         self.refreshTransport()

  923. 

  924.     @pyqtSlot()

  925.     def slot_transportBackwards(self):

  926.         if not gCarla.host.is_engine_running():

  927.             return

  928. 

  929.         newFrame = gCarla.host.get_current_transport_frame() - 100000

  930. 

  931.         if newFrame < 0:

  932.             newFrame = 0

  933. 

  934.         gCarla.host.transport_relocate(newFrame)

  935. 

  936.     @pyqtSlot()

  937.     def slot_transportForwards(self):

  938.         if not gCarla.host.is_engine_running():

  939.             return

  940. 

  941.         newFrame = gCarla.host.get_current_transport_frame() + 100000

  942.         gCarla.host.transport_relocate(newFrame)

  943. 

  944.     # -----------------------------------------------------------------

  945. 

  946.     @pyqtSlot()

  947.     def slot_aboutCarla(self):

  948.         CarlaAboutW(self).exec_()

  949. 

  950.     @pyqtSlot()

  951.     def slot_aboutQt(self):

  952.         QApplication.instance().aboutQt()

  953. 

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

  955. 

  956.     @pyqtSlot(int)

  957.     def slot_diskFolderChanged(self, index):

  958.         if index < 0:

  959.             return

  960.         elif index == 0:

  961.             filename = HOME

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

  963.         else:

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

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

  966. 

  967.         self.fDirModel.setRootPath(filename)

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

  969. 

  970.     @pyqtSlot()

  971.     def slot_diskFolderAdd(self):

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

  973. 

  974.         if newPath:

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

  976.                 newPath = newPath[:-1]

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

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

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

  980. 

  981.     @pyqtSlot()

  982.     def slot_diskFolderRemove(self):

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

  984. 

  985.         if index <= 0:

  986.             return

  987. 

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

  989. 

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

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

  992. 

  993.     @pyqtSlot(QModelIndex)

  994.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  996. 

  997.         if not gCarla.host.load_file(filename):

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

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

  1000.                              gCarla.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1001. 

  1002.     # -----------------------------------------------------------------

  1003. 

  1004.     @pyqtSlot(int, int, int, float, str)

  1005.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1006.         print("DEBUG:", pluginId, value1, value2, value3, valueStr)

  1007.         #self.ui.pte_log.appendPlainText(valueStr.replace("", "DEBUG: ").replace("", "ERROR: ").replace("", "").replace("\n", ""))

  1008. 

  1009.     # -----------------------------------------------------------------

  1010. 

  1011.     @pyqtSlot(int, str)

  1012.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1013.         self.fContainer.addPlugin(pluginId, self.fIsProjectLoading)

  1014. 

  1015.         if self.fContainer.getPluginCount() == 1:

  1016.             self.ui.act_plugin_remove_all.setEnabled(True)

  1017. 

  1018.     @pyqtSlot(int)

  1019.     def slot_handlePluginRemovedCallback(self, pluginId):

  1020.         self.fContainer.removePlugin(pluginId)

  1021. 

  1022.         if self.fContainer.getPluginCount() == 0:

  1023.             self.ui.act_plugin_remove_all.setEnabled(False)

  1024. 

  1025.     @pyqtSlot(int, str)

  1026.     def slot_handlePluginRenamedCallback(self, pluginId, newName):

  1027.         self.fContainer.renamePlugin(pluginId, newName)

  1028. 

  1029.     @pyqtSlot(int, str)

  1030.     def slot_handlePluginUnavailableCallback(self, pluginId, errorMsg):

  1031.         self.fContainer.disablePlugin(pluginId, errorMsg)

  1032. 

  1033.     # -----------------------------------------------------------------

  1034. 

  1035.     @pyqtSlot(str)

  1036.     def slot_handleEngineStartedCallback(self, processMode, transportMode, driverName):

  1037.         gCarla.processMode   = processMode

  1038.         gCarla.transportMode = transportMode

  1039.         gCarla.bufferSize    = gCarla.host.get_buffer_size()

  1040.         gCarla.sampleRate    = gCarla.host.get_sample_rate()

  1041. 

  1042.         self.slot_engineStart(False)

  1043. 

  1044.         if self.fIdleTimerFast == 0:

  1045.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1046.         if self.fIdleTimerSlow == 0:

  1047.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  1048. 

  1049.     @pyqtSlot()

  1050.     def slot_handleEngineStoppedCallback(self):

  1051.         self.killTimers()

  1052.         self.slot_engineStop(False)

  1053. 

  1054.         gCarla.bufferSize = 0

  1055.         gCarla.sampleRate = 0.0

  1056. 

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

  1058. 

  1059.     @pyqtSlot(int)

  1060.     def slot_handleProcessModeChangedCallback(self, newProcessMode):

  1061.         self.fEngineChanged = True

  1062. 

  1063.     @pyqtSlot(int)

  1064.     def slot_handleTransportModeChangedCallback(self, newTransportMode):

  1065.         self.fEngineChanged = True

  1066. 

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

  1068. 

  1069.     @pyqtSlot(int)

  1070.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1071.         self.fEngineChanged = True

  1072. 

  1073.     @pyqtSlot(float)

  1074.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1075.         self.fEngineChanged = True

  1076. 

  1077.     # -----------------------------------------------------------------

  1078. 

  1079.     @pyqtSlot(str)

  1080.     def slot_handleInfoCallback(self, info):

  1081.         QMessageBox.information(self, "Information", info)

  1082. 

  1083.     @pyqtSlot(str)

  1084.     def slot_handleErrorCallback(self, error):

  1085.         QMessageBox.critical(self, "Error", error)

  1086. 

  1087.     @pyqtSlot()

  1088.     def slot_handleQuitCallback(self):

  1089.         pass

  1090. 

  1091.     # -----------------------------------------------------------------

  1092. 

  1093.     @pyqtSlot()

  1094.     def slot_handleSIGUSR1(self):

  1095.         print("Got SIGUSR1 -> Saving project now")

  1096.         QTimer.singleShot(0, self.slot_fileSave)

  1097. 

  1098.     @pyqtSlot()

  1099.     def slot_handleSIGTERM(self):

  1100.         print("Got SIGTERM -> Closing now")

  1101.         self.close()

  1102. 

  1103.     # -----------------------------------------------------------------

  1104. 

  1105.     def timerEvent(self, event):

  1106.         if event.timerId() == self.fIdleTimerFast:

  1107.             #if not gCarla.isPlugin:

  1108.             gCarla.host.engine_idle()

  1109.             self.refreshTransport()

  1110. 

  1111.             self.fContainer.idleFast()

  1112. 

  1113.         elif event.timerId() == self.fIdleTimerSlow:

  1114.             if self.fEngineChanged:

  1115.                 self.fContainer.engineChanged()

  1116.                 self.fEngineChanged = False

  1117. 

  1118.             self.fContainer.idleSlow()

  1119. 

  1120.         QMainWindow.timerEvent(self, event)

  1121. 

  1122.     def closeEvent(self, event):

  1123.         self.killTimers()

  1124.         self.saveSettings()

  1125. 

  1126.         if gCarla.host.is_engine_running():

  1127.             gCarla.host.set_engine_about_to_close()

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

  1129.             self.fContainer.removeAllPlugins()

  1130.             self.stopEngine()

  1131. 

  1132.         QMainWindow.closeEvent(self, event)

  1133. 

  1134. # ------------------------------------------------------------------------------------------------------------

  1135. # Engine callback

  1136. 

  1137. def engineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1138.     if action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1139.         gCarla.processMode = value1

  1140.         if gCarla.gui is not None:

  1141.             gCarla.gui.ProcessModeChangedCallback.emit(value1)

  1142.         return

  1143. 

  1144.     if action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1145.         gCarla.transportMode = value1

  1146.         if gCarla.gui is not None:

  1147.             gCarla.gui.TransportModeChangedCallback.emit(value1)

  1148.         return

  1149. 

  1150.     if action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1151.         gCarla.bufferSize = value1

  1152.         if gCarla.gui is not None:

  1153.             gCarla.gui.BufferSizeChangedCallback.emit(value1)

  1154.         return

  1155. 

  1156.     if action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1157.         gCarla.sampleRate = value1

  1158.         if gCarla.gui is not None:

  1159.             gCarla.gui.SampleRateChangedCallback.emit(value3)

  1160.         return

  1161. 

  1162.     if gCarla.gui is None:

  1163.         print("WARNING: Got engine callback but UI is not ready : ", pluginId, value1, value2, value3, valueStr)

  1164.         return

  1165. 

  1166.     valueStr = charPtrToString(valueStr)

  1167. 

  1168.     if action == ENGINE_CALLBACK_DEBUG:

  1169.         gCarla.gui.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1170.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1171.         gCarla.gui.PluginAddedCallback.emit(pluginId, valueStr)

  1172.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1173.         gCarla.gui.PluginRemovedCallback.emit(pluginId)

  1174.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1175.         gCarla.gui.PluginRenamedCallback.emit(pluginId, valueStr)

  1176.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1177.         gCarla.gui.PluginUnavailableCallback.emit(pluginId, valueStr)

  1178.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1179.         gCarla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1180.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1181.         gCarla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1182.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1183.         gCarla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1184.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1185.         gCarla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1186.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1187.         gCarla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1188.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1189.         gCarla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1190.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1191.         gCarla.gui.UiStateChangedCallback.emit(pluginId, value1)

  1192.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1193.         gCarla.gui.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1194.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1195.         gCarla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1196.     elif action == ENGINE_CALLBACK_UPDATE:

  1197.         gCarla.gui.UpdateCallback.emit(pluginId)

  1198.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1199.         gCarla.gui.ReloadInfoCallback.emit(pluginId)

  1200.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1201.         gCarla.gui.ReloadParametersCallback.emit(pluginId)

  1202.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1203.         gCarla.gui.ReloadProgramsCallback.emit(pluginId)

  1204.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1205.         gCarla.gui.ReloadAllCallback.emit(pluginId)

  1206.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1207.         gCarla.gui.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1208.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1209.         gCarla.gui.PatchbayClientRemovedCallback.emit(pluginId)

  1210.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1211.         gCarla.gui.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1212.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1213.         gCarla.gui.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1214.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1215.         gCarla.gui.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1216.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1217.         gCarla.gui.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1218.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1219.         gCarla.gui.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1220.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1221.         gCarla.gui.PatchbayConnectionAddedCallback.emit(pluginId, value1, value2)

  1222.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1223.         gCarla.gui.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1224.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1225.         gCarla.gui.EngineStartedCallback.emit(value1, value2, valueStr)

  1226.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1227.         gCarla.gui.killTimers()

  1228.         gCarla.gui.EngineStoppedCallback.emit()

  1229.     elif action == ENGINE_CALLBACK_INFO:

  1230.         gCarla.gui.InfoCallback.emit(valueStr)

  1231.     elif action == ENGINE_CALLBACK_ERROR:

  1232.         gCarla.gui.ErrorCallback.emit(valueStr)

  1233.     elif action == ENGINE_CALLBACK_QUIT:

  1234.         gCarla.gui.QuitCallback.emit()

  1235. 

  1236. # ------------------------------------------------------------------------------------------------------------

  1237. # File callback

  1238. 

  1239. def fileCallback(ptr, action, isDir, title, filter):

  1240.     if gCarla.gui is None:

  1241.         return None

  1242. 

  1243.     ret = ""

  1244. 

  1245.     if action == FILE_CALLBACK_DEBUG:

  1246.         pass

  1247.     elif action == FILE_CALLBACK_OPEN:

  1248.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  1249.     elif action == FILE_CALLBACK_SAVE:

  1250.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  1251. 

  1252.     if not ret:

  1253.         return None

  1254. 

  1255.     gCarla.gui._fileRet = c_char_p(ret.encode("utf-8"))

  1256.     retval = cast(byref(gCarla.gui._fileRet), POINTER(c_uintptr))

  1257.     return retval.contents.value