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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>

  6. #

  7. # This program is free software; you can redistribute it and/or

  8. # modify it under the terms of the GNU General Public License as

  9. # published by the Free Software Foundation; either version 2 of

  10. # the License, or any later version.

  11. #

  12. # This program is distributed in the hope that it will be useful,

  13. # but WITHOUT ANY WARRANTY; without even the implied warranty of

  14. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  15. # GNU General Public License for more details.

  16. #

  17. # For a full copy of the GNU General Public License see the doc/GPL.txt file.

  18. 

  19. # ------------------------------------------------------------------------------------------------------------

  20. # Imports (Global)

  21. 

  22. from PyQt4.QtCore import qCritical, QModelIndex, QTimer

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

  24. 

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

  26. # Imports (Custom)

  27. 

  28. import ui_carla_host

  29. 

  30. from carla_database import *

  31. from carla_settings import *

  32. from carla_style import *

  33. from carla_widgets import *

  34. 

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

  36. # PatchCanvas defines

  37. 

  38. CANVAS_ANTIALIASING_SMALL = 1

  39. CANVAS_EYECANDY_SMALL     = 1

  40. 

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

  42. # Session Management support

  43. 

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

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

  46. 

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

  48. # Dummy widget

  49. 

  50. class CarlaDummyW(object):

  51.     def __init__(self, parent):

  52.         object.__init__(self)

  53. 

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

  55. 

  56.     def getPluginCount(self):

  57.         return 0

  58. 

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

  60. 

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

  62.         pass

  63. 

  64.     def removePlugin(self, pluginId):

  65.         pass

  66. 

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

  68.         pass

  69. 

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

  71.         pass

  72. 

  73.     def removeAllPlugins(self):

  74.         pass

  75. 

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

  77. 

  78.     def engineStarted(self):

  79.         pass

  80. 

  81.     def engineStopped(self):

  82.         pass

  83. 

  84.     def engineChanged(self):

  85.         pass

  86. 

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

  88. 

  89.     def idleFast(self):

  90.         pass

  91. 

  92.     def idleSlow(self):

  93.         pass

  94. 

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

  96. 

  97.     def saveSettings(self, settings):

  98.         pass

  99. 

  100.     def showEditDialog(self, pluginId):

  101.         pass

  102. 

  103. # ------------------------------------------------------------------------------------------------------------

  104. # Host Window

  105. 

  106. class HostWindow(QMainWindow):

  107.     # signals

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

  109.     PluginAddedCallback = pyqtSignal(int, str)

  110.     PluginRemovedCallback = pyqtSignal(int)

  111.     PluginRenamedCallback = pyqtSignal(int, str)

  112.     PluginUnavailableCallback = pyqtSignal(int, str)

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

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

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

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

  117.     ProgramChangedCallback = pyqtSignal(int, int)

  118.     MidiProgramChangedCallback = pyqtSignal(int, int)

  119.     UiStateChangedCallback = pyqtSignal(int, int)

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

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

  122.     UpdateCallback = pyqtSignal(int)

  123.     ReloadInfoCallback = pyqtSignal(int)

  124.     ReloadParametersCallback = pyqtSignal(int)

  125.     ReloadProgramsCallback = pyqtSignal(int)

  126.     ReloadAllCallback = pyqtSignal(int)

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

  128.     PatchbayClientRemovedCallback = pyqtSignal(int)

  129.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

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

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

  132.     PatchbayPortRemovedCallback = pyqtSignal(int, int)

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

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

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

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

  137.     EngineStoppedCallback = pyqtSignal()

  138.     ProcessModeChangedCallback = pyqtSignal(int)

  139.     TransportModeChangedCallback = pyqtSignal(int)

  140.     BufferSizeChangedCallback = pyqtSignal(int)

  141.     SampleRateChangedCallback = pyqtSignal(float)

  142.     InfoCallback = pyqtSignal(str)

  143.     ErrorCallback = pyqtSignal(str)

  144.     QuitCallback = pyqtSignal()

  145.     SIGTERM = pyqtSignal()

  146.     SIGUSR1 = pyqtSignal()

  147. 

  148.     def __init__(self, parent):

  149.         QMainWindow.__init__(self, parent)

  150.         self.ui = ui_carla_host.Ui_CarlaHostW()

  151.         self.ui.setupUi(self)

  152. 

  153.         if False:

  154.             Carla.gui = self

  155.             self.fContainer = CarlaDummyW(self)

  156. 

  157.         # -------------------------------------------------------------

  158.         # Set callback, TODO put somewhere else

  159. 

  160.         if Carla.host is not None:

  161.             Carla.host.set_engine_callback(engineCallback)

  162. 

  163.         # -------------------------------------------------------------

  164.         # Internal stuff

  165. 

  166.         self.fIdleTimerFast = 0

  167.         self.fIdleTimerSlow = 0

  168. 

  169.         self.fIsProjectLoading = False

  170.         self.fProjectFilename  = ""

  171. 

  172.         self.fLadspaRdfNeedsUpdate = True

  173.         self.fLadspaRdfList = []

  174. 

  175.         self.fLastTransportFrame = 0

  176.         self.fLastTransportState = False

  177.         self.fTransportText = ""

  178. 

  179.         # when true, call engineChanged() asap

  180.         self.fEngineChanged = False

  181. 

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

  183.         self.fFirstEngineInit = True

  184. 

  185.         self.fSavedSettings = {}

  186. 

  187.         if LADISH_APP_NAME:

  188.             self.fClientName         = LADISH_APP_NAME

  189.             self.fSessionManagerName = "LADISH"

  190.         elif NSM_URL:

  191.             self.fClientName         = "Carla.tmp"

  192.             self.fSessionManagerName = "Non Session Manager"

  193.         else:

  194.             self.fClientName         = "Carla"

  195.             self.fSessionManagerName = ""

  196. 

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

  198.         # Load Settings

  199. 

  200.         self.loadSettings(True)

  201. 

  202.         # -------------------------------------------------------------

  203.         # Set up GUI (engine stopped)

  204. 

  205.         if Carla.isPlugin:

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

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

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

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

  210.         else:

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

  212. 

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

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

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

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

  217. 

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

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

  220. 

  221.         self.setTransportMenuEnabled(False)

  222. 

  223.         # -------------------------------------------------------------

  224.         # Set up GUI (right panel)

  225. 

  226.         self.fDirModel = QFileSystemModel(self)

  227.         self.fDirModel.setRootPath(HOME)

  228. 

  229.         if Carla.host is not None:

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

  231. 

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

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

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

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

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

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

  238. 

  239.         self.setProperWindowTitle()

  240. 

  241.         # -------------------------------------------------------------

  242.         # Connect actions to functions

  243. 

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

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

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

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

  248. 

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

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

  251. 

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

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

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

  255. 

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

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

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

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

  260. 

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

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

  263. 

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

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

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

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

  268. 

  269.         self.DebugCallback.connect(self.slot_handleDebugCallback)

  270. 

  271.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  272.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  273.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  274.         self.PluginUnavailableCallback.connect(self.slot_handlePluginUnavailableCallback)

  275. 

  276.         # parameter (rack, patchbay)

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

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

  279.         # update, reload (rack, patchbay)

  280.         # patchbay

  281. 

  282.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  283.         self.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  284. 

  285.         self.ProcessModeChangedCallback.connect(self.slot_handleProcessModeChangedCallback)

  286.         self.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  287. 

  288.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  289.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  290. 

  291.         self.InfoCallback.connect(self.slot_handleInfoCallback)

  292.         self.ErrorCallback.connect(self.slot_handleErrorCallback)

  293.         self.QuitCallback.connect(self.slot_handleQuitCallback)

  294. 

  295.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  296.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  297. 

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

  299.         # Final setup

  300. 

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

  302. 

  303.     # -----------------------------------------------------------------

  304.     # Called by containers

  305. 

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

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

  308.         return dialog.exec_()

  309. 

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

  311.         if showMiniCanvas:

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

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

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

  315.         else:

  316.             self.ui.miniCanvasPreview.hide()

  317. 

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

  319. 

  320.     def updateContainer(self, canvasThemeData):

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

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

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

  324. 

  325.     # -----------------------------------------------------------------

  326.     # Internal stuff (files)

  327. 

  328.     def loadProjectNow(self):

  329.         if not self.fProjectFilename:

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

  331. 

  332.         self.fIsProjectLoading = True

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

  334.         self.fIsProjectLoading = False

  335. 

  336.     @pyqtSlot()

  337.     def slot_loadProjectNow(self):

  338.         self.loadProjectNow()

  339. 

  340.     def loadProjectLater(self, filename):

  341.         self.fProjectFilename = filename

  342.         self.setProperWindowTitle()

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

  344. 

  345.     def saveProjectNow(self):

  346.         if not self.fProjectFilename:

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

  348. 

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

  350. 

  351.     # -----------------------------------------------------------------

  352.     # Internal stuff (engine)

  353. 

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

  355.         if Carla.isPlugin:

  356.             return "Plugin"

  357. 

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

  359. 

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

  361.         # read settings

  362. 

  363.         # bool values

  364.         try:

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

  366.         except:

  367.             forceStereo = CARLA_DEFAULT_FORCE_STEREO

  368. 

  369.         try:

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

  371.         except:

  372.             preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  373. 

  374.         try:

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

  376.         except:

  377.             preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  378. 

  379.         try:

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

  381.         except:

  382.             uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  383. 

  384.         # int values

  385.         try:

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

  387.         except:

  388.             maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  389. 

  390.         try:

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

  392.         except:

  393.             uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  394. 

  395.         # enums

  396.         try:

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

  398.         except:

  399.             processMode = CARLA_DEFAULT_PROCESS_MODE

  400. 

  401.         try:

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

  403.         except:

  404.             transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  405. 

  406.         # driver name

  407.         try:

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

  409.         except:

  410.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  411. 

  412.         # driver options

  413.         try:

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

  415.         except:

  416.             audioDevice = ""

  417. 

  418.         try:

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

  420.         except:

  421.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  422. 

  423.         try:

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

  425.         except:

  426.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  427. 

  428.         try:

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

  430.         except:

  431.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  432. 

  433.         # -------------------------------------------------------------

  434.         # fix things if needed

  435. 

  436.         if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  437.             forceStereo = True

  438.         elif processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

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

  440.             processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  441. 

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

  443.             transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  444. 

  445.         # -------------------------------------------------------------

  446.         # apply to engine

  447. 

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

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

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

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

  452. 

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

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

  455. 

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

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

  458. 

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

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

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

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

  463. 

  464.         # save this for later

  465.         Carla.maxParameters = maxParameters

  466. 

  467.         # return selected driver name

  468.         return audioDriver

  469. 

  470.     def startEngine(self):

  471.         audioDriver = self.setEngineSettings()

  472. 

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

  474.             if self.fFirstEngineInit:

  475.                 self.fFirstEngineInit = False

  476.                 return

  477. 

  478.             audioError = Carla.host.get_last_error()

  479. 

  480.             if audioError:

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

  482.             else:

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

  484.             return

  485. 

  486.         self.fFirstEngineInit = False

  487. 

  488.     def stopEngine(self):

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

  490.             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"

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

  492.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  493.             if ask != QMessageBox.Yes:

  494.                 return

  495. 

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

  497.             self.fContainer.removeAllPlugins()

  498. 

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

  500.             print(Carla.host.get_last_error())

  501. 

  502.     # -----------------------------------------------------------------

  503.     # Internal stuff (plugins)

  504. 

  505.     def getExtraPtr(self, plugin):

  506.         ptype = plugin['type']

  507. 

  508.         if ptype == PLUGIN_LADSPA:

  509.             uniqueId = plugin['uniqueId']

  510. 

  511.             self.maybeLoadRDFs()

  512. 

  513.             for rdfItem in self.fLadspaRdfList:

  514.                 if rdfItem.UniqueID == uniqueId:

  515.                     return pointer(rdfItem)

  516. 

  517.         elif ptype in (PLUGIN_FILE_GIG, PLUGIN_FILE_SF2):

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

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

  520. 

  521.         return None

  522. 

  523.     def maybeLoadRDFs(self):

  524.         if not self.fLadspaRdfNeedsUpdate:

  525.             return

  526. 

  527.         self.fLadspaRdfNeedsUpdate = False

  528.         self.fLadspaRdfList = []

  529. 

  530.         if not haveLRDF:

  531.             return

  532. 

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

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

  535. 

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

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

  538. 

  539.             try:

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

  541.             except:

  542.                 pass

  543. 

  544.             frLadspa.close()

  545. 

  546.     def setLoadRDFsNeeded(self):

  547.         self.fLadspaRdfNeedsUpdate = True

  548. 

  549.     # -----------------------------------------------------------------

  550.     # Internal stuff (transport)

  551. 

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

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

  554.             return

  555. 

  556.         timeInfo = Carla.host.get_transport_info()

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

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

  559. 

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

  561.             if playing:

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

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

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

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

  566.             else:

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

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

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

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

  571. 

  572.             self.fLastTransportState = playing

  573. 

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

  575.             time = frame / Carla.sampleRate

  576.             secs = time % 60

  577.             mins = (time / 60) % 60

  578.             hrs  = (time / 3600) % 60

  579. 

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

  581.             self.fLastTransportFrame = frame

  582. 

  583.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  589. 

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

  591.     # Internal stuff (settings)

  592. 

  593.     def loadSettings(self, firstTime):

  594.         settings = QSettings()

  595. 

  596.         if firstTime:

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

  598. 

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

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

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

  602. 

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

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

  605.             else:

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

  607. 

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

  609. 

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

  611. 

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

  613.                 if i == 0: continue

  614.                 folder = diskFolders[i]

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

  616. 

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

  618.                 self.setUnifiedTitleAndToolBarOnMac(True)

  619. 

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

  621.         # plugin checks

  622. 

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

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

  625. 

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

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

  628. 

  629.         # ---------------------------------------------

  630. 

  631.         if not Carla.isPlugin:

  632.             # engine

  633.             self.setEngineSettings(settings)

  634. 

  635.             # plugin paths

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

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

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

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

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

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

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

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

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

  645. 

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

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

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

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

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

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

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

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

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

  655. 

  656.         # ---------------------------------------------

  657. 

  658.         # TODO

  659. 

  660.         self.fSavedSettings = {

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

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

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

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

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

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

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

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

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

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

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

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

  673.         }

  674. 

  675.         # ---------------------------------------------

  676. 

  677.         if self.fIdleTimerFast != 0:

  678.             self.killTimer(self.fIdleTimerFast)

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

  680. 

  681.         if self.fIdleTimerSlow != 0:

  682.             self.killTimer(self.fIdleTimerSlow)

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

  684. 

  685.     def saveSettings(self):

  686.         settings = QSettings()

  687. 

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

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

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

  691. 

  692.         diskFolders = []

  693. 

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

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

  696. 

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

  698. 

  699.         self.fContainer.saveSettings(settings)

  700. 

  701.     # -----------------------------------------------------------------

  702.     # Internal stuff (gui)

  703. 

  704.     def setProperWindowTitle(self):

  705.         title = self.fClientName

  706. 

  707.         if self.fProjectFilename:

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

  709.         if self.fSessionManagerName:

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

  711. 

  712.         self.setWindowTitle(title)

  713. 

  714.     # -----------------------------------------------------------------

  715. 

  716.     @pyqtSlot()

  717.     def slot_fileNew(self):

  718.         self.fContainer.removeAllPlugins()

  719.         self.fProjectFilename = ""

  720.         self.setProperWindowTitle()

  721. 

  722.     @pyqtSlot()

  723.     def slot_fileOpen(self):

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

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

  726. 

  727.         if not filenameTry:

  728.             return

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

  730. 

  731.         newFile = True

  732. 

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

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

  735.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  737. 

  738.         if newFile:

  739.             self.fContainer.removeAllPlugins()

  740.             self.fProjectFilename = filename

  741.             self.setProperWindowTitle()

  742.             self.loadProjectNow()

  743.         else:

  744.             filenameOld = self.fProjectFilename

  745.             self.fProjectFilename = filename

  746.             self.loadProjectNow()

  747.             self.fProjectFilename = filenameOld

  748. 

  749.     @pyqtSlot()

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

  751.         if self.fProjectFilename and not saveAs:

  752.             return self.saveProjectNow()

  753. 

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

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

  756. 

  757.         if not filenameTry:

  758.             return

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

  760. 

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

  762.             filename += ".carxp"

  763. 

  764.         if self.fProjectFilename != filename:

  765.             self.fProjectFilename = filename

  766.             self.setProperWindowTitle()

  767. 

  768.         self.saveProjectNow()

  769. 

  770.     @pyqtSlot()

  771.     def slot_fileSaveAs(self):

  772.         self.slot_fileSave(True)

  773. 

  774.     # -----------------------------------------------------------------

  775. 

  776.     @pyqtSlot()

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

  778.         if doStart: self.startEngine()

  779. 

  780.         check = Carla.host.is_engine_running()

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

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

  783. 

  784.         if not Carla.isPlugin:

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

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

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

  788. 

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

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

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

  792. 

  793.             self.setTransportMenuEnabled(check)

  794. 

  795.         if check:

  796.             if not Carla.isPlugin:

  797.                 self.refreshTransport(True)

  798. 

  799.             self.fContainer.engineStarted()

  800. 

  801.     @pyqtSlot()

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

  803.         if doStop: self.stopEngine()

  804. 

  805.         # FIXME?

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

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

  808.             self.fContainer.removeAllPlugins()

  809. 

  810.         check = Carla.host.is_engine_running()

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

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

  813. 

  814.         if not Carla.isPlugin:

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

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

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

  818. 

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

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

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

  822. 

  823.             self.setTransportMenuEnabled(check)

  824. 

  825.         if not check:

  826.             self.fTextTransport = ""

  827.             self.fContainer.engineStopped()

  828. 

  829.     # -----------------------------------------------------------------

  830. 

  831.     @pyqtSlot()

  832.     def slot_pluginAdd(self):

  833.         dialog = PluginDatabaseW(self)

  834. 

  835.         if not dialog.exec_():

  836.             return

  837. 

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

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

  840.             return

  841. 

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

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

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

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

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

  847. 

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

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

  850.             return

  851. 

  852.     @pyqtSlot()

  853.     def slot_pluginRemoveAll(self):

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

  855.         self.fContainer.removeAllPlugins()

  856.         Carla.host.remove_all_plugins()

  857. 

  858.     # -----------------------------------------------------------------

  859. 

  860.     @pyqtSlot(bool)

  861.     def slot_transportPlayPause(self, toggled):

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

  863.             return

  864. 

  865.         if toggled:

  866.             Carla.host.transport_play()

  867.         else:

  868.             Carla.host.transport_pause()

  869. 

  870.         self.refreshTransport()

  871. 

  872.     @pyqtSlot()

  873.     def slot_transportStop(self):

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

  875.             return

  876. 

  877.         Carla.host.transport_pause()

  878.         Carla.host.transport_relocate(0)

  879. 

  880.         self.refreshTransport()

  881. 

  882.     @pyqtSlot()

  883.     def slot_transportBackwards(self):

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

  885.             return

  886. 

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

  888. 

  889.         if newFrame < 0:

  890.             newFrame = 0

  891. 

  892.         Carla.host.transport_relocate(newFrame)

  893. 

  894.     @pyqtSlot()

  895.     def slot_transportForwards(self):

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

  897.             return

  898. 

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

  900.         Carla.host.transport_relocate(newFrame)

  901. 

  902.     # -----------------------------------------------------------------

  903. 

  904.     @pyqtSlot()

  905.     def slot_aboutCarla(self):

  906.         CarlaAboutW(self).exec_()

  907. 

  908.     @pyqtSlot()

  909.     def slot_aboutQt(self):

  910.         QApplication.instance().aboutQt()

  911. 

  912.     # -----------------------------------------------------------------

  913. 

  914.     @pyqtSlot(int)

  915.     def slot_diskFolderChanged(self, index):

  916.         if index < 0:

  917.             return

  918.         elif index == 0:

  919.             filename = HOME

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

  921.         else:

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

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

  924. 

  925.         self.fDirModel.setRootPath(filename)

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

  927. 

  928.     @pyqtSlot()

  929.     def slot_diskFolderAdd(self):

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

  931. 

  932.         if newPath:

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

  934.                 newPath = newPath[:-1]

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

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

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

  938. 

  939.     @pyqtSlot()

  940.     def slot_diskFolderRemove(self):

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

  942. 

  943.         if index <= 0:

  944.             return

  945. 

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

  947. 

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

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

  950. 

  951.     @pyqtSlot(QModelIndex)

  952.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  954. 

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

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

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

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

  959. 

  960.     # -----------------------------------------------------------------

  961. 

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

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

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

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

  966. 

  967.     # -----------------------------------------------------------------

  968. 

  969.     @pyqtSlot(int, str)

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

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

  972. 

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

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

  975. 

  976.     @pyqtSlot(int)

  977.     def slot_handlePluginRemovedCallback(self, pluginId):

  978.         self.fContainer.removePlugin(pluginId)

  979. 

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

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

  982. 

  983.     @pyqtSlot(int, str)

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

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

  986. 

  987.     @pyqtSlot(int, str)

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

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

  990. 

  991.     # -----------------------------------------------------------------

  992. 

  993.     @pyqtSlot(str)

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

  995.         Carla.processMode   = processMode

  996.         Carla.transportMode = transportMode

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

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

  999. 

  1000.         self.slot_engineStart(False)

  1001. 

  1002.         if self.fIdleTimerFast == 0:

  1003.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1004.         if self.fIdleTimerSlow == 0:

  1005.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  1006. 

  1007.     @pyqtSlot()

  1008.     def slot_handleEngineStoppedCallback(self):

  1009.         if self.fIdleTimerFast != 0:

  1010.             self.killTimer(self.fIdleTimerFast)

  1011.             self.fIdleTimerFast = 0

  1012. 

  1013.         if self.fIdleTimerSlow != 0:

  1014.             self.killTimer(self.fIdleTimerSlow)

  1015.             self.fIdleTimerSlow = 0

  1016. 

  1017.         self.slot_engineStop(False)

  1018. 

  1019.         Carla.bufferSize = 0

  1020.         Carla.sampleRate = 0.0

  1021. 

  1022.     # -----------------------------------------------------------------

  1023. 

  1024.     @pyqtSlot(int)

  1025.     def slot_handleProcessModeChangedCallback(self, newProcessMode):

  1026.         self.fEngineChanged = True

  1027. 

  1028.     @pyqtSlot(int)

  1029.     def slot_handleTransportModeChangedCallback(self, newTransportMode):

  1030.         self.fEngineChanged = True

  1031. 

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

  1033. 

  1034.     @pyqtSlot(int)

  1035.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1036.         self.fEngineChanged = True

  1037. 

  1038.     @pyqtSlot(float)

  1039.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1040.         self.fEngineChanged = True

  1041. 

  1042.     # -----------------------------------------------------------------

  1043. 

  1044.     @pyqtSlot(str)

  1045.     def slot_handleInfoCallback(self, info):

  1046.         pass

  1047. 

  1048.     @pyqtSlot(str)

  1049.     def slot_handleErrorCallback(self, error):

  1050.         pass

  1051. 

  1052.     @pyqtSlot()

  1053.     def slot_handleQuitCallback(self):

  1054.         pass

  1055. 

  1056.     # -----------------------------------------------------------------

  1057. 

  1058.     @pyqtSlot()

  1059.     def slot_handleSIGUSR1(self):

  1060.         print("Got SIGUSR1 -> Saving project now")

  1061.         QTimer.singleShot(0, self.slot_fileSave)

  1062. 

  1063.     @pyqtSlot()

  1064.     def slot_handleSIGTERM(self):

  1065.         print("Got SIGTERM -> Closing now")

  1066.         self.close()

  1067. 

  1068.     # -----------------------------------------------------------------

  1069. 

  1070.     def timerEvent(self, event):

  1071.         if event.timerId() == self.fIdleTimerFast:

  1072.             #if not Carla.isPlugin:

  1073.             Carla.host.engine_idle()

  1074.             self.refreshTransport()

  1075. 

  1076.             self.fContainer.idleFast()

  1077. 

  1078.         elif event.timerId() == self.fIdleTimerSlow:

  1079.             if self.fEngineChanged:

  1080.                 self.fContainer.engineChanged()

  1081.                 self.fEngineChanged = False

  1082. 

  1083.             self.fContainer.idleSlow()

  1084. 

  1085.         QMainWindow.timerEvent(self, event)

  1086. 

  1087.     def closeEvent(self, event):

  1088.         if self.fIdleTimerFast != 0:

  1089.             self.killTimer(self.fIdleTimerFast)

  1090.             self.fIdleTimerFast = 0

  1091. 

  1092.         if self.fIdleTimerSlow != 0:

  1093.             self.killTimer(self.fIdleTimerSlow)

  1094.             self.fIdleTimerSlow = 0

  1095. 

  1096.         self.saveSettings()

  1097. 

  1098.         if Carla.host.is_engine_running():

  1099.             Carla.host.set_engine_about_to_close()

  1100.             self.ui.act_plugin_remove_all.setEnabled(False)

  1101.             self.fContainer.removeAllPlugins()

  1102.             self.stopEngine()

  1103. 

  1104.         QMainWindow.closeEvent(self, event)

  1105. 

  1106. # ------------------------------------------------------------------------------------------------------------

  1107. # Engine callback

  1108. 

  1109. def engineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1110.     if action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1111.         Carla.processMode = value1

  1112.         if Carla.gui is not None:

  1113.             Carla.gui.ProcessModeChangedCallback.emit(value1)

  1114.         return

  1115. 

  1116.     if action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1117.         Carla.transportMode = value1

  1118.         if Carla.gui is not None:

  1119.             Carla.gui.TransportModeChangedCallback.emit(value1)

  1120.         return

  1121. 

  1122.     if action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1123.         Carla.bufferSize = value1

  1124.         if Carla.gui is not None:

  1125.             Carla.gui.BufferSizeChangedCallback.emit(value1)

  1126.         return

  1127. 

  1128.     if action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1129.         Carla.sampleRate = value1

  1130.         if Carla.gui is not None:

  1131.             Carla.gui.SampleRateChangedCallback.emit(value3)

  1132.         return

  1133. 

  1134.     if Carla.gui is None:

  1135.         print("WARNING: Got engine callback but UI is not ready : ", pluginId, value1, value2, value3, valueStr)

  1136.         return

  1137. 

  1138.     valueStr = charPtrToString(valueStr)

  1139. 

  1140.     if action == ENGINE_CALLBACK_DEBUG:

  1141.         Carla.gui.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1142.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1143.         Carla.gui.PluginAddedCallback.emit(pluginId, valueStr)

  1144.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1145.         Carla.gui.PluginRemovedCallback.emit(pluginId)

  1146.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1147.         Carla.gui.PluginRenamedCallback.emit(pluginId, valueStr)

  1148.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1149.         Carla.gui.PluginUnavailableCallback.emit(pluginId, valueStr)

  1150.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1151.         Carla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1152.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1153.         Carla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1154.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1155.         Carla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1156.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1157.         Carla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1158.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1159.         Carla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1160.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1161.         Carla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1162.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1163.         Carla.gui.UiStateChangedCallback.emit(pluginId, value1)

  1164.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1165.         Carla.gui.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1166.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1167.         Carla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1168.     elif action == ENGINE_CALLBACK_UPDATE:

  1169.         Carla.gui.UpdateCallback.emit(pluginId)

  1170.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1171.         Carla.gui.ReloadInfoCallback.emit(pluginId)

  1172.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1173.         Carla.gui.ReloadParametersCallback.emit(pluginId)

  1174.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1175.         Carla.gui.ReloadProgramsCallback.emit(pluginId)

  1176.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1177.         Carla.gui.ReloadAllCallback.emit(pluginId)

  1178.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1179.         Carla.gui.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1180.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1181.         Carla.gui.PatchbayClientRemovedCallback.emit(pluginId)

  1182.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1183.         Carla.gui.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1184.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1185.         Carla.gui.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1186.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1187.         Carla.gui.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1188.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1189.         Carla.gui.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1190.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1191.         Carla.gui.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1192.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1193.         Carla.gui.PatchbayConnectionAddedCallback.emit(pluginId, value1, value2)

  1194.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1195.         Carla.gui.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1196.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1197.         Carla.gui.EngineStartedCallback.emit(value1, value2, valueStr)

  1198.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1199.         Carla.gui.EngineStoppedCallback.emit()

  1200.     elif action == ENGINE_CALLBACK_INFO:

  1201.         Carla.gui.InfoCallback.emit(valueStr)

  1202.     elif action == ENGINE_CALLBACK_ERROR:

  1203.         Carla.gui.ErrorCallback.emit(valueStr)

  1204.     elif action == ENGINE_CALLBACK_QUIT:

  1205.         Carla.gui.QuitCallback.emit()