Audio plugin host https://kx.studio/carla
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  1. #!/usr/bin/env python3
  2. # -*- coding: utf-8 -*-
  3. # Carla host code
  4. # Copyright (C) 2011-2013 Filipe Coelho <falktx@falktx.com>
  5. #
  6. # This program is free software; you can redistribute it and/or
  7. # modify it under the terms of the GNU General Public License as
  8. # published by the Free Software Foundation; either version 2 of
  9. # the License, or any later version.
  10. #
  11. # This program is distributed in the hope that it will be useful,
  12. # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. # GNU General Public License for more details.
  15. #
  16. # For a full copy of the GNU General Public License see the doc/GPL.txt file.
  17. # ------------------------------------------------------------------------------------------------------------
  18. # Imports (Global)
  19. try:
  20. from PyQt5.QtCore import QModelIndex, QTimer
  21. from PyQt5.QtGui import QPalette
  22. from PyQt5.QtWidgets import QApplication, QFileSystemModel, QMainWindow
  23. except:
  24. from PyQt4.QtCore import QModelIndex, QTimer
  25. from PyQt4.QtGui import QApplication, QFileSystemModel, QMainWindow, QPalette
  26. # ------------------------------------------------------------------------------------------------------------
  27. # Imports (Custom)
  28. import ui_carla_host
  29. from carla_database import *
  30. from carla_settings import *
  31. from carla_style import *
  32. from carla_widgets import *
  33. # ------------------------------------------------------------------------------------------------------------
  34. # PatchCanvas defines
  35. CANVAS_ANTIALIASING_SMALL = 1
  36. CANVAS_EYECANDY_SMALL = 1
  37. CANVAS_DEFAULT_THEME_NAME = "Modern Dark"
  38. # ------------------------------------------------------------------------------------------------------------
  39. # Session Management support
  40. LADISH_APP_NAME = os.getenv("LADISH_APP_NAME")
  41. NSM_URL = os.getenv("NSM_URL")
  42. # ------------------------------------------------------------------------------------------------------------
  43. # Dummy widget
  44. class CarlaDummyW(object):
  45. def __init__(self, parent):
  46. object.__init__(self)
  47. # -----------------------------------------------------------------
  48. def getPluginCount(self):
  49. return 0
  50. # -----------------------------------------------------------------
  51. def addPlugin(self, pluginId, isProjectLoading):
  52. pass
  53. def removePlugin(self, pluginId):
  54. pass
  55. def renamePlugin(self, pluginId, newName):
  56. pass
  57. def removeAllPlugins(self):
  58. pass
  59. # -----------------------------------------------------------------
  60. def engineStarted(self):
  61. pass
  62. def engineStopped(self):
  63. pass
  64. # -----------------------------------------------------------------
  65. def idleFast(self):
  66. pass
  67. def idleSlow(self):
  68. pass
  69. # -----------------------------------------------------------------
  70. def saveSettings(self, settings):
  71. pass
  72. # ------------------------------------------------------------------------------------------------------------
  73. # Host Window
  74. class HostWindow(QMainWindow):
  75. # signals
  76. DebugCallback = pyqtSignal(int, int, int, float, str)
  77. PluginAddedCallback = pyqtSignal(int)
  78. PluginRemovedCallback = pyqtSignal(int)
  79. PluginRenamedCallback = pyqtSignal(int, str)
  80. ParameterValueChangedCallback = pyqtSignal(int, int, float)
  81. ParameterDefaultChangedCallback = pyqtSignal(int, int, float)
  82. ParameterMidiChannelChangedCallback = pyqtSignal(int, int, int)
  83. ParameterMidiCcChangedCallback = pyqtSignal(int, int, int)
  84. ProgramChangedCallback = pyqtSignal(int, int)
  85. MidiProgramChangedCallback = pyqtSignal(int, int)
  86. NoteOnCallback = pyqtSignal(int, int, int, int)
  87. NoteOffCallback = pyqtSignal(int, int, int)
  88. ShowGuiCallback = pyqtSignal(int, int)
  89. UpdateCallback = pyqtSignal(int)
  90. ReloadInfoCallback = pyqtSignal(int)
  91. ReloadParametersCallback = pyqtSignal(int)
  92. ReloadProgramsCallback = pyqtSignal(int)
  93. ReloadAllCallback = pyqtSignal(int)
  94. PatchbayClientAddedCallback = pyqtSignal(int, int, str)
  95. PatchbayClientRemovedCallback = pyqtSignal(int, str)
  96. PatchbayClientRenamedCallback = pyqtSignal(int, str)
  97. PatchbayPortAddedCallback = pyqtSignal(int, int, int, str)
  98. PatchbayPortRemovedCallback = pyqtSignal(int, int, str)
  99. PatchbayPortRenamedCallback = pyqtSignal(int, int, str)
  100. PatchbayConnectionAddedCallback = pyqtSignal(int, int, int)
  101. PatchbayConnectionRemovedCallback = pyqtSignal(int)
  102. PatchbayIconChangedCallback = pyqtSignal(int, int)
  103. BufferSizeChangedCallback = pyqtSignal(int)
  104. SampleRateChangedCallback = pyqtSignal(float)
  105. ProcessModeChangedCallback = pyqtSignal(int)
  106. EngineStartedCallback = pyqtSignal(str)
  107. EngineStoppedChangedCallback = pyqtSignal()
  108. NSM_AnnounceCallback = pyqtSignal(str)
  109. NSM_OpenCallback = pyqtSignal(str)
  110. NSM_SaveCallback = pyqtSignal()
  111. ErrorCallback = pyqtSignal(str)
  112. QuitCallback = pyqtSignal()
  113. SIGTERM = pyqtSignal()
  114. SIGUSR1 = pyqtSignal()
  115. def __init__(self, parent):
  116. QMainWindow.__init__(self, parent)
  117. self.ui = ui_carla_host.Ui_CarlaHostW()
  118. self.ui.setupUi(self)
  119. if False:
  120. Carla.gui = self
  121. self.fContainer = CarlaDummyW(self)
  122. # -------------------------------------------------------------
  123. # Set callback
  124. Carla.host.set_engine_callback(EngineCallback)
  125. # -------------------------------------------------------------
  126. # Internal stuff
  127. self.fBufferSize = 0
  128. self.fSampleRate = 0.0
  129. self.fIdleTimerFast = 0
  130. self.fIdleTimerSlow = 0
  131. self.fIsProjectLoading = False
  132. self.fProjectFilename = ""
  133. self.fLadspaRdfNeedsUpdate = True
  134. self.fLadspaRdfList = []
  135. self.fLastTransportFrame = 0
  136. self.fLastTransportState = False
  137. self.fSavedSettings = {}
  138. if LADISH_APP_NAME:
  139. self.fClientName = LADISH_APP_NAME
  140. self.fSessionManagerName = "LADISH"
  141. elif NSM_URL:
  142. self.fClientName = "Carla.tmp"
  143. self.fSessionManagerName = "Non Session Manager"
  144. else:
  145. self.fClientName = "Carla"
  146. self.fSessionManagerName = ""
  147. # -------------------------------------------------------------
  148. # Load Settings
  149. self.loadSettings(True)
  150. # -------------------------------------------------------------
  151. # Set up GUI (engine stopped)
  152. if Carla.isPlugin:
  153. self.ui.act_file_new.setEnabled(False)
  154. self.ui.act_file_open.setEnabled(False)
  155. self.ui.act_engine_start.setEnabled(False)
  156. self.ui.act_engine_stop.setEnabled(False)
  157. self.ui.menu_Engine.setEnabled(False)
  158. else:
  159. self.ui.act_engine_start.setEnabled(True)
  160. self.ui.act_file_save.setEnabled(False)
  161. self.ui.act_file_save_as.setEnabled(False)
  162. self.ui.act_engine_stop.setEnabled(False)
  163. self.ui.act_plugin_remove_all.setEnabled(False)
  164. self.ui.menu_PluginMacros.setEnabled(False)
  165. self.ui.menu_Canvas.setEnabled(False)
  166. self.setTransportMenuEnabled(False)
  167. # -------------------------------------------------------------
  168. # Set up GUI (right panel)
  169. self.fDirModel = QFileSystemModel(self)
  170. self.fDirModel.setNameFilters(cString(Carla.host.get_supported_file_types()).split(";"))
  171. self.fDirModel.setRootPath(HOME)
  172. self.ui.fileTreeView.setModel(self.fDirModel)
  173. self.ui.fileTreeView.setRootIndex(self.fDirModel.index(HOME))
  174. self.ui.fileTreeView.setColumnHidden(1, True)
  175. self.ui.fileTreeView.setColumnHidden(2, True)
  176. self.ui.fileTreeView.setColumnHidden(3, True)
  177. self.ui.fileTreeView.setHeaderHidden(True)
  178. self.setProperWindowTitle()
  179. # -------------------------------------------------------------
  180. # Connect actions to functions
  181. self.ui.act_file_new.triggered.connect(self.slot_fileNew)
  182. self.ui.act_file_open.triggered.connect(self.slot_fileOpen)
  183. self.ui.act_file_save.triggered.connect(self.slot_fileSave)
  184. self.ui.act_file_save_as.triggered.connect(self.slot_fileSaveAs)
  185. self.ui.act_engine_start.triggered.connect(self.slot_engineStart)
  186. self.ui.act_engine_stop.triggered.connect(self.slot_engineStop)
  187. self.ui.act_plugin_add.triggered.connect(self.slot_pluginAdd)
  188. self.ui.act_plugin_add2.triggered.connect(self.slot_pluginAdd)
  189. self.ui.act_plugin_remove_all.triggered.connect(self.slot_pluginRemoveAll)
  190. self.ui.act_transport_play.triggered.connect(self.slot_transportPlayPause)
  191. self.ui.act_transport_stop.triggered.connect(self.slot_transportStop)
  192. self.ui.act_transport_backwards.triggered.connect(self.slot_transportBackwards)
  193. self.ui.act_transport_forwards.triggered.connect(self.slot_transportForwards)
  194. self.ui.act_help_about.triggered.connect(self.slot_aboutCarla)
  195. self.ui.act_help_about_qt.triggered.connect(self.slot_aboutQt)
  196. #self.ui.splitter.splitterMoved.connect(self.slot_splitterMoved)
  197. self.ui.cb_disk.currentIndexChanged.connect(self.slot_diskFolderChanged)
  198. self.ui.b_disk_add.clicked.connect(self.slot_diskFolderAdd)
  199. self.ui.b_disk_remove.clicked.connect(self.slot_diskFolderRemove)
  200. self.ui.fileTreeView.doubleClicked.connect(self.slot_fileTreeDoubleClicked)
  201. self.DebugCallback.connect(self.slot_handleDebugCallback)
  202. self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)
  203. self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)
  204. self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)
  205. self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)
  206. self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)
  207. self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)
  208. self.EngineStoppedChangedCallback.connect(self.slot_handleEngineStoppedCallback)
  209. #self.NSM_AnnounceCallback.connect(self.slot_handleNSM_AnnounceCallback)
  210. #self.NSM_OpenCallback.connect(self.slot_handleNSM_OpenCallback)
  211. #self.NSM_SaveCallback.connect(self.slot_handleNSM_SaveCallback)
  212. #self.ErrorCallback.connect(self.slot_handleErrorCallback)
  213. #self.QuitCallback.connect(self.slot_handleQuitCallback)
  214. self.SIGUSR1.connect(self.slot_handleSIGUSR1)
  215. self.SIGTERM.connect(self.slot_handleSIGTERM)
  216. # -------------------------------------------------------------
  217. # Final setup
  218. if Carla.isPlugin:
  219. QTimer.singleShot(0, self.slot_engineStart)
  220. elif NSM_URL:
  221. Carla.host.nsm_ready()
  222. # -----------------------------------------------------------------
  223. # Called by containers
  224. def openSettingsWindow(self, hasCanvas, hasCanvasGL):
  225. dialog = CarlaSettingsW(self, hasCanvas, hasCanvasGL)
  226. return dialog.exec_()
  227. def setupContainer(self, showMiniCanvas):
  228. if showMiniCanvas:
  229. CARLA_DEFAULT_CANVAS_WIDTH = 3100
  230. CARLA_DEFAULT_CANVAS_HEIGHT = 2400
  231. self.ui.miniCanvasPreview.setRealParent(self)
  232. #self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())
  233. self.ui.miniCanvasPreview.init(self.fContainer.scene, CARLA_DEFAULT_CANVAS_WIDTH, CARLA_DEFAULT_CANVAS_HEIGHT, self.fSavedSettings["UseCustomMiniCanvasPaint"])
  234. else:
  235. self.ui.miniCanvasPreview.hide()
  236. self.ui.mainwidget.hide()
  237. self.ui.splitter.insertWidget(0, self.fContainer)
  238. del self.ui.mainwidget
  239. # -----------------------------------------------------------------
  240. # Internal stuff (files)
  241. def loadProjectNow(self):
  242. if not self.fProjectFilename:
  243. return qCritical("ERROR: loading project without filename set")
  244. # TESTING
  245. if not Carla.host.is_engine_running():
  246. self.slot_engineStart()
  247. self.fIsProjectLoading = True
  248. Carla.host.load_project(self.fProjectFilename)
  249. self.fIsProjectLoading = False
  250. @pyqtSlot()
  251. def slot_loadProjectNow(self):
  252. self.loadProjectNow()
  253. def loadProjectLater(self, filename):
  254. self.fProjectFilename = filename
  255. self.setProperWindowTitle()
  256. QTimer.singleShot(0, self.slot_loadProjectNow)
  257. def saveProjectNow(self):
  258. if not self.fProjectFilename:
  259. return qCritical("ERROR: saving project without filename set")
  260. Carla.host.save_project(self.fProjectFilename)
  261. # -----------------------------------------------------------------
  262. # Internal stuff (engine)
  263. def setEngineSettings(self, settings = None):
  264. if Carla.isPlugin:
  265. return "Plugin"
  266. if settings is None: settings = QSettings()
  267. forceStereo = settings.value("Engine/ForceStereo", CARLA_DEFAULT_FORCE_STEREO, type=bool)
  268. preferPluginBridges = settings.value("Engine/PreferPluginBridges", CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)
  269. preferUiBridges = settings.value("Engine/PreferUiBridges", CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)
  270. uisAlwaysOnTop = settings.value("Engine/OscUiTimeout", CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)
  271. uiBridgesTimeout = settings.value("Engine/OscUiTimeout", CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)
  272. Carla.maxParameters = settings.value("Engine/MaxParameters", CARLA_DEFAULT_MAX_PARAMETERS, type=int)
  273. audioDriver = settings.value("Engine/AudioDriver", CARLA_DEFAULT_AUDIO_DRIVER, type=str)
  274. if audioDriver == "JACK":
  275. #transportMode = settings.value("Engine/TransportMode", TRANSPORT_MODE_JACK, type=int)
  276. transportMode = TRANSPORT_MODE_JACK
  277. else:
  278. transportMode = TRANSPORT_MODE_INTERNAL
  279. audioNumPeriods = settings.value("Engine/AudioBufferSize", CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)
  280. audioBufferSize = settings.value("Engine/AudioBufferSize", CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)
  281. audioSampleRate = settings.value("Engine/AudioSampleRate", CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)
  282. audioDevice = settings.value("Engine/AudioDevice", "", type=str)
  283. Carla.host.set_engine_option(OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")
  284. Carla.host.set_engine_option(OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")
  285. Carla.host.set_engine_option(OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")
  286. Carla.host.set_engine_option(OPTION_AUDIO_DEVICE, 0, audioDevice)
  287. if Carla.processMode == PROCESS_MODE_CONTINUOUS_RACK:
  288. forceStereo = True
  289. elif Carla.processMode == PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:
  290. print("LADISH detected but using multiple clients (not allowed), forcing single client now")
  291. Carla.processMode = PROCESS_MODE_SINGLE_CLIENT
  292. Carla.host.set_engine_option(OPTION_FORCE_STEREO, forceStereo, "")
  293. Carla.host.set_engine_option(OPTION_PREFER_PLUGIN_BRIDGES, preferPluginBridges, "")
  294. Carla.host.set_engine_option(OPTION_PREFER_UI_BRIDGES, preferUiBridges, "")
  295. Carla.host.set_engine_option(OPTION_UIS_ALWAYS_ON_TOP, uisAlwaysOnTop, "")
  296. Carla.host.set_engine_option(OPTION_UI_BRIDGES_TIMEOUT, uiBridgesTimeout, "")
  297. Carla.host.set_engine_option(OPTION_PROCESS_MODE, Carla.processMode, "")
  298. Carla.host.set_engine_option(OPTION_MAX_PARAMETERS, Carla.maxParameters, "")
  299. Carla.host.set_engine_option(OPTION_TRANSPORT_MODE, transportMode, "")
  300. return audioDriver
  301. def startEngine(self):
  302. audioDriver = self.setEngineSettings()
  303. if not Carla.host.engine_init(audioDriver, self.fClientName):
  304. #if self.fFirstEngineInit:
  305. #self.fFirstEngineInit = False
  306. #return
  307. audioError = cString(Carla.host.get_last_error())
  308. if audioError:
  309. QMessageBox.critical(self, self.tr("Error"), self.tr("Could not connect to Audio backend '%s', possible reasons:\n%s" % (audioDriver, audioError)))
  310. else:
  311. QMessageBox.critical(self, self.tr("Error"), self.tr("Could not connect to Audio backend '%s'" % audioDriver))
  312. return
  313. self.fBufferSize = Carla.host.get_buffer_size()
  314. self.fSampleRate = Carla.host.get_sample_rate()
  315. #self.fFirstEngineInit = False
  316. # Peaks and TimeInfo
  317. self.fIdleTimerFast = self.startTimer(30) #self.fSavedSettings["Main/RefreshInterval"])
  318. # LEDs and edit dialog parameters
  319. self.fIdleTimerSlow = self.startTimer(self.fSavedSettings["Main/RefreshInterval"]*2)
  320. def stopEngine(self):
  321. if self.fContainer.getPluginCount() > 0:
  322. 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"
  323. "Do you want to do this now?"),
  324. QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
  325. if ask != QMessageBox.Yes:
  326. return
  327. self.ui.act_plugin_remove_all.setEnabled(False)
  328. self.fContainer.removeAllPlugins()
  329. if Carla.host.is_engine_running() and not Carla.host.engine_close():
  330. print(cString(Carla.host.get_last_error()))
  331. self.fBufferSize = 0
  332. self.fSampleRate = 0.0
  333. if self.fIdleTimerFast != 0:
  334. self.killTimer(self.fIdleTimerFast)
  335. self.fIdleTimerFast = 0
  336. if self.fIdleTimerSlow != 0:
  337. self.killTimer(self.fIdleTimerSlow)
  338. self.fIdleTimerSlow = 0
  339. # -----------------------------------------------------------------
  340. # Internal stuff (plugins)
  341. def getExtraStuff(self, plugin):
  342. ptype = plugin['type']
  343. if ptype == PLUGIN_LADSPA:
  344. uniqueId = plugin['uniqueId']
  345. self.maybeLoadRDFs()
  346. for rdfItem in self.fLadspaRdfList:
  347. if rdfItem.UniqueID == uniqueId:
  348. return pointer(rdfItem)
  349. elif ptype in (PLUGIN_GIG, PLUGIN_SF2, PLUGIN_SFZ):
  350. if plugin['name'].lower().endswith(" (16 outputs)"):
  351. # return a dummy non-null pointer
  352. INTPOINTER = POINTER(c_int)
  353. int1 = c_int(0x1)
  354. addr = addressof(int1)
  355. return cast(addr, INTPOINTER)
  356. return c_nullptr
  357. def maybeLoadRDFs(self):
  358. if not self.fLadspaRdfNeedsUpdate:
  359. return
  360. self.fLadspaRdfNeedsUpdate = False
  361. self.fLadspaRdfList = []
  362. if not haveLRDF:
  363. return
  364. settingsDir = os.path.join(HOME, ".config", "falkTX")
  365. frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")
  366. if os.path.exists(frLadspaFile):
  367. frLadspa = open(frLadspaFile, 'r')
  368. try:
  369. self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))
  370. except:
  371. pass
  372. frLadspa.close()
  373. def setLoadRDFsNeeded(self):
  374. self.fLadspaRdfNeedsUpdate = True
  375. # -----------------------------------------------------------------
  376. # Internal stuff (transport)
  377. def refreshTransport(self, forced = False):
  378. if not Carla.host.is_engine_running():
  379. return
  380. if self.fSampleRate == 0.0:
  381. return
  382. timeInfo = Carla.host.get_transport_info()
  383. playing = bool(timeInfo['playing'])
  384. frame = int(timeInfo['frame'])
  385. if playing != self.fLastTransportState or forced:
  386. if playing:
  387. icon = getIcon("media-playback-pause")
  388. self.ui.act_transport_play.setChecked(True)
  389. self.ui.act_transport_play.setIcon(icon)
  390. self.ui.act_transport_play.setText(self.tr("&Pause"))
  391. else:
  392. icon = getIcon("media-playback-start")
  393. self.ui.act_transport_play.setChecked(False)
  394. self.ui.act_transport_play.setIcon(icon)
  395. self.ui.act_transport_play.setText(self.tr("&Play"))
  396. self.fLastTransportState = playing
  397. if frame != self.fLastTransportFrame or forced:
  398. time = frame / self.fSampleRate
  399. secs = time % 60
  400. mins = (time / 60) % 60
  401. hrs = (time / 3600) % 60
  402. #textTransport = "Transport %s, at %02i:%02i:%02i" % ("playing" if playing else "stopped", hrs, mins, secs)
  403. #self.fInfoLabel.setText("%s | %s" % (self.fInfoText, textTransport))
  404. self.fLastTransportFrame = frame
  405. def setTransportMenuEnabled(self, enabled):
  406. self.ui.act_transport_play.setEnabled(enabled)
  407. self.ui.act_transport_stop.setEnabled(enabled)
  408. self.ui.act_transport_backwards.setEnabled(enabled)
  409. self.ui.act_transport_forwards.setEnabled(enabled)
  410. self.ui.menu_Transport.setEnabled(enabled)
  411. # -----------------------------------------------------------------
  412. # Internal stuff (settings)
  413. def loadSettings(self, firstTime):
  414. settings = QSettings()
  415. if firstTime:
  416. self.restoreGeometry(settings.value("Geometry", ""))
  417. showToolbar = settings.value("ShowToolbar", True, type=bool)
  418. self.ui.act_settings_show_toolbar.setChecked(showToolbar)
  419. self.ui.toolBar.setVisible(showToolbar)
  420. #if settings.contains("SplitterState"):
  421. #self.ui.splitter.restoreState(settings.value("SplitterState", ""))
  422. #else:
  423. self.ui.splitter.setSizes([99999, 210])
  424. diskFolders = toList(settings.value("DiskFolders", [HOME]))
  425. self.ui.cb_disk.setItemData(0, HOME)
  426. for i in range(len(diskFolders)):
  427. if i == 0: continue
  428. folder = diskFolders[i]
  429. self.ui.cb_disk.addItem(os.path.basename(folder), folder)
  430. if MACOS and not settings.value("Main/UseProTheme", True, type=bool):
  431. self.setUnifiedTitleAndToolBarOnMac(True)
  432. # ---------------------------------------------
  433. # plugin checks
  434. if settings.value("Engine/DisableChecks", False, type=bool):
  435. os.environ["CARLA_DISCOVERY_NO_PROCESSING_CHECKS"] = "true"
  436. elif os.getenv("CARLA_DISCOVERY_NO_PROCESSING_CHECKS"):
  437. os.environ.pop("CARLA_DISCOVERY_NO_PROCESSING_CHECKS")
  438. # ---------------------------------------------
  439. if not Carla.isPlugin:
  440. # engine
  441. self.setEngineSettings(settings)
  442. # plugin paths
  443. LADSPA_PATH = toList(settings.value("Paths/LADSPA", Carla.DEFAULT_LADSPA_PATH))
  444. DSSI_PATH = toList(settings.value("Paths/DSSI", Carla.DEFAULT_DSSI_PATH))
  445. LV2_PATH = toList(settings.value("Paths/LV2", Carla.DEFAULT_LV2_PATH))
  446. VST_PATH = toList(settings.value("Paths/VST", Carla.DEFAULT_VST_PATH))
  447. AU_PATH = toList(settings.value("Paths/AU", Carla.DEFAULT_AU_PATH))
  448. CSOUND_PATH = toList(settings.value("Paths/CSOUND", Carla.DEFAULT_CSOUND_PATH))
  449. GIG_PATH = toList(settings.value("Paths/GIG", Carla.DEFAULT_GIG_PATH))
  450. SF2_PATH = toList(settings.value("Paths/SF2", Carla.DEFAULT_SF2_PATH))
  451. SFZ_PATH = toList(settings.value("Paths/SFZ", Carla.DEFAULT_SFZ_PATH))
  452. os.environ["LADSPA_PATH"] = splitter.join(LADSPA_PATH)
  453. os.environ["DSSI_PATH"] = splitter.join(DSSI_PATH)
  454. os.environ["LV2_PATH"] = splitter.join(LV2_PATH)
  455. os.environ["VST_PATH"] = splitter.join(VST_PATH)
  456. os.environ["AU_PATH"] = splitter.join(AU_PATH)
  457. os.environ["CSOUND_PATH"] = splitter.join(CSOUND_PATH)
  458. os.environ["GIG_PATH"] = splitter.join(GIG_PATH)
  459. os.environ["SF2_PATH"] = splitter.join(SF2_PATH)
  460. os.environ["SFZ_PATH"] = splitter.join(SFZ_PATH)
  461. # ---------------------------------------------
  462. self.fSavedSettings = {
  463. "Main/DefaultProjectFolder": settings.value("Main/DefaultProjectFolder", HOME, type=str),
  464. "Main/RefreshInterval": settings.value("Main/RefreshInterval", 50, type=int),
  465. "Canvas/Theme": settings.value("Canvas/Theme", CANVAS_DEFAULT_THEME_NAME, type=str),
  466. "Canvas/AutoHideGroups": settings.value("Canvas/AutoHideGroups", False, type=bool),
  467. "Canvas/UseBezierLines": settings.value("Canvas/UseBezierLines", True, type=bool),
  468. "Canvas/EyeCandy": settings.value("Canvas/EyeCandy", CANVAS_EYECANDY_SMALL, type=int),
  469. "Canvas/UseOpenGL": settings.value("Canvas/UseOpenGL", False, type=bool),
  470. "Canvas/Antialiasing": settings.value("Canvas/Antialiasing", CANVAS_ANTIALIASING_SMALL, type=int),
  471. "Canvas/HighQualityAntialiasing": settings.value("Canvas/HighQualityAntialiasing", False, type=bool),
  472. "UseCustomMiniCanvasPaint": (settings.value("Main/UseProTheme", True, type=bool) and
  473. settings.value("Main/ProThemeColor", "Black", type=str).lower() == "black")
  474. }
  475. # ---------------------------------------------
  476. if self.fIdleTimerFast != 0:
  477. self.killTimer(self.fIdleTimerFast)
  478. self.fIdleTimerFast = self.startTimer(30) #self.fSavedSettings["Main/RefreshInterval"])
  479. if self.fIdleTimerSlow != 0:
  480. self.killTimer(self.fIdleTimerSlow)
  481. self.fIdleTimerSlow = self.startTimer(self.fSavedSettings["Main/RefreshInterval"]*2)
  482. def saveSettings(self):
  483. settings = QSettings()
  484. settings.setValue("Geometry", self.saveGeometry())
  485. settings.setValue("SplitterState", self.ui.splitter.saveState())
  486. settings.setValue("ShowToolbar", self.ui.toolBar.isVisible())
  487. #settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())
  488. #settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())
  489. diskFolders = []
  490. for i in range(self.ui.cb_disk.count()):
  491. diskFolders.append(self.ui.cb_disk.itemData(i))
  492. settings.setValue("DiskFolders", diskFolders)
  493. self.fContainer.saveSettings(settings)
  494. # -----------------------------------------------------------------
  495. # Internal stuff (gui)
  496. def setProperWindowTitle(self):
  497. title = self.fClientName
  498. if self.fProjectFilename:
  499. title += " - %s" % os.path.basename(self.fProjectFilename)
  500. if self.fSessionManagerName:
  501. title += " (%s)" % self.fSessionManagerName
  502. self.setWindowTitle(title)
  503. # -----------------------------------------------------------------
  504. @pyqtSlot()
  505. def slot_fileNew(self):
  506. self.fContainer.removeAllPlugins()
  507. self.fProjectFilename = ""
  508. self.setProperWindowTitle()
  509. @pyqtSlot()
  510. def slot_fileOpen(self):
  511. fileFilter = self.tr("Carla Project File (*.carxp)")
  512. filenameTry = QFileDialog.getOpenFileName(self, self.tr("Open Carla Project File"), self.fSavedSettings["Main/DefaultProjectFolder"], filter=fileFilter)[0]
  513. if not filenameTry:
  514. return
  515. newFile = True
  516. if self.fContainer.getPluginCount() > 0:
  517. ask = QMessageBox.question(self, self.tr("Question"), self.tr("There are some plugins loaded, do you want to remove them now?"),
  518. QMessageBox.Yes | QMessageBox.No, QMessageBox.No)
  519. newFile = ask == QMessageBox.Yes
  520. if newFile:
  521. self.fContainer.removeAllPlugins()
  522. self.fProjectFilename = filenameTry
  523. self.setProperWindowTitle()
  524. self.loadProjectNow()
  525. else:
  526. filenameOld = self.fProjectFilename
  527. self.fProjectFilename = filenameTry
  528. self.loadProjectNow()
  529. self.fProjectFilename = filenameOld
  530. @pyqtSlot()
  531. def slot_fileSave(self, saveAs=False):
  532. if self.fProjectFilename and not saveAs:
  533. return self.saveProjectNow()
  534. fileFilter = self.tr("Carla Project File (*.carxp)")
  535. filenameTry = QFileDialog.getSaveFileName(self, self.tr("Save Carla Project File"), self.fSavedSettings["Main/DefaultProjectFolder"], filter=fileFilter)[0]
  536. if not filenameTry:
  537. return
  538. if not filenameTry.endswith(".carxp"):
  539. filenameTry += ".carxp"
  540. if self.fProjectFilename != filenameTry:
  541. self.fProjectFilename = filenameTry
  542. self.setProperWindowTitle()
  543. self.saveProjectNow()
  544. @pyqtSlot()
  545. def slot_fileSaveAs(self):
  546. self.slot_fileSave(True)
  547. # -----------------------------------------------------------------
  548. @pyqtSlot()
  549. def slot_engineStart(self, doStart = True):
  550. if doStart: self.startEngine()
  551. check = Carla.host.is_engine_running()
  552. self.ui.menu_PluginMacros.setEnabled(check)
  553. self.ui.menu_Canvas.setEnabled(check)
  554. if not Carla.isPlugin:
  555. self.ui.act_file_save.setEnabled(check)
  556. self.ui.act_engine_start.setEnabled(not check)
  557. self.ui.act_engine_stop.setEnabled(check)
  558. if self.fSessionManagerName != "Non Session Manager":
  559. self.ui.act_file_open.setEnabled(check)
  560. self.ui.act_file_save_as.setEnabled(check)
  561. self.setTransportMenuEnabled(check)
  562. if check:
  563. #self.fInfoText = "Engine running | SampleRate: %g | BufferSize: %i" % (self.fSampleRate, self.fBufferSize)
  564. self.fContainer.engineStarted()
  565. if not Carla.isPlugin:
  566. self.refreshTransport(True)
  567. @pyqtSlot()
  568. def slot_engineStop(self, doStop = True):
  569. if doStop: self.stopEngine()
  570. check = Carla.host.is_engine_running()
  571. self.ui.menu_PluginMacros.setEnabled(check)
  572. self.ui.menu_Canvas.setEnabled(check)
  573. if not Carla.isPlugin:
  574. self.ui.act_file_save.setEnabled(check)
  575. self.ui.act_engine_start.setEnabled(not check)
  576. self.ui.act_engine_stop.setEnabled(check)
  577. if self.fSessionManagerName != "Non Session Manager":
  578. self.ui.act_file_open.setEnabled(check)
  579. self.ui.act_file_save_as.setEnabled(check)
  580. self.setTransportMenuEnabled(check)
  581. if not check:
  582. self.fContainer.engineStopped()
  583. #self.fInfoText = ""
  584. #self.fInfoLabel.setText("Engine stopped")
  585. # -----------------------------------------------------------------
  586. @pyqtSlot()
  587. def slot_pluginAdd(self):
  588. dialog = PluginDatabaseW(self)
  589. if not dialog.exec_():
  590. return
  591. if not Carla.host.is_engine_running():
  592. QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))
  593. return
  594. btype = dialog.fRetPlugin['build']
  595. ptype = dialog.fRetPlugin['type']
  596. filename = dialog.fRetPlugin['binary']
  597. label = dialog.fRetPlugin['label']
  598. extraStuff = self.getExtraStuff(dialog.fRetPlugin)
  599. if not Carla.host.add_plugin(btype, ptype, filename, None, label, c_nullptr):
  600. CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), cString(Carla.host.get_last_error()), QMessageBox.Ok, QMessageBox.Ok)
  601. return
  602. @pyqtSlot()
  603. def slot_pluginRemoveAll(self):
  604. self.ui.act_plugin_remove_all.setEnabled(False)
  605. self.fContainer.removeAllPlugins()
  606. Carla.host.remove_all_plugins()
  607. # -----------------------------------------------------------------
  608. @pyqtSlot(bool)
  609. def slot_transportPlayPause(self, toggled):
  610. if not Carla.host.is_engine_running():
  611. return
  612. if toggled:
  613. Carla.host.transport_play()
  614. else:
  615. Carla.host.transport_pause()
  616. self.refreshTransport()
  617. @pyqtSlot()
  618. def slot_transportStop(self):
  619. if not Carla.host.is_engine_running():
  620. return
  621. Carla.host.transport_pause()
  622. Carla.host.transport_relocate(0)
  623. self.refreshTransport()
  624. @pyqtSlot()
  625. def slot_transportBackwards(self):
  626. if not Carla.host.is_engine_running():
  627. return
  628. newFrame = Carla.host.get_current_transport_frame() - 100000
  629. if newFrame < 0:
  630. newFrame = 0
  631. Carla.host.transport_relocate(newFrame)
  632. @pyqtSlot()
  633. def slot_transportForwards(self):
  634. if not Carla.host.is_engine_running():
  635. return
  636. newFrame = Carla.host.get_current_transport_frame() + 100000
  637. Carla.host.transport_relocate(newFrame)
  638. # -----------------------------------------------------------------
  639. @pyqtSlot()
  640. def slot_aboutCarla(self):
  641. CarlaAboutW(self).exec_()
  642. @pyqtSlot()
  643. def slot_aboutQt(self):
  644. QApplication.instance().aboutQt()
  645. # -----------------------------------------------------------------
  646. @pyqtSlot(int)
  647. def slot_diskFolderChanged(self, index):
  648. if index < 0:
  649. return
  650. elif index == 0:
  651. filename = HOME
  652. self.ui.b_disk_remove.setEnabled(False)
  653. else:
  654. filename = self.ui.cb_disk.itemData(index)
  655. self.ui.b_disk_remove.setEnabled(True)
  656. self.fDirModel.setRootPath(filename)
  657. self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))
  658. @pyqtSlot()
  659. def slot_diskFolderAdd(self):
  660. newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)
  661. if newPath:
  662. if newPath[-1] == os.sep:
  663. newPath = newPath[:-1]
  664. self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)
  665. self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)
  666. self.ui.b_disk_remove.setEnabled(True)
  667. @pyqtSlot()
  668. def slot_diskFolderRemove(self):
  669. index = self.ui.cb_disk.currentIndex()
  670. if index <= 0:
  671. return
  672. self.ui.cb_disk.removeItem(index)
  673. if self.ui.cb_disk.currentIndex() == 0:
  674. self.ui.b_disk_remove.setEnabled(False)
  675. @pyqtSlot(QModelIndex)
  676. def slot_fileTreeDoubleClicked(self, modelIndex):
  677. filename = self.fDirModel.filePath(modelIndex)
  678. if not Carla.host.load_filename(filename):
  679. CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),
  680. self.tr("Failed to load file"),
  681. cString(Carla.host.get_last_error()), QMessageBox.Ok, QMessageBox.Ok)
  682. # -----------------------------------------------------------------
  683. @pyqtSlot(int, int, int, float, str)
  684. def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):
  685. print("DEBUG:", pluginId, value1, value2, value3, valueStr)
  686. #self.ui.pte_log.appendPlainText(valueStr.replace("", "DEBUG: ").replace("", "ERROR: ").replace("", "").replace("\n", ""))
  687. @pyqtSlot(int)
  688. def slot_handlePluginAddedCallback(self, pluginId):
  689. self.fContainer.addPlugin(pluginId, self.fIsProjectLoading)
  690. if self.fContainer.getPluginCount() == 1:
  691. self.ui.act_plugin_remove_all.setEnabled(True)
  692. @pyqtSlot(int)
  693. def slot_handlePluginRemovedCallback(self, pluginId):
  694. self.fContainer.removePlugin(pluginId)
  695. if self.fContainer.getPluginCount() == 0:
  696. self.ui.act_plugin_remove_all.setEnabled(False)
  697. @pyqtSlot(int, str)
  698. def slot_handlePluginRenamedCallback(self, pluginId, newName):
  699. self.fContainer.renamePlugin(pluginId, newName)
  700. @pyqtSlot(int)
  701. def slot_handleBufferSizeChangedCallback(self, newBufferSize):
  702. self.fBufferSize = newBufferSize
  703. #self.fInfoText = "Engine running | SampleRate: %g | BufferSize: %i" % (self.fSampleRate, self.fBufferSize)
  704. @pyqtSlot(float)
  705. def slot_handleSampleRateChangedCallback(self, newSampleRate):
  706. self.fSampleRate = newSampleRate
  707. #self.fInfoText = "Engine running | SampleRate: %g | BufferSize: %i" % (self.fSampleRate, self.fBufferSize)
  708. # -----------------------------------------------------------------
  709. @pyqtSlot(str)
  710. def slot_handleEngineStartedCallback(self, driverName):
  711. self.fBufferSize = Carla.host.get_buffer_size()
  712. self.fSampleRate = Carla.host.get_sample_rate()
  713. if self.fIdleTimerFast == 0:
  714. self.fIdleTimerFast = self.startTimer(30) #self.fSavedSettings["Main/RefreshInterval"])
  715. if self.fIdleTimerSlow == 0:
  716. self.fIdleTimerSlow = self.startTimer(self.fSavedSettings["Main/RefreshInterval"]*2)
  717. self.slot_engineStart(False)
  718. @pyqtSlot()
  719. def slot_handleEngineStoppedCallback(self):
  720. self.fBufferSize = 0
  721. self.fSampleRate = 0.0
  722. if self.fIdleTimerFast != 0:
  723. self.killTimer(self.fIdleTimerFast)
  724. self.fIdleTimerFast = 0
  725. if self.fIdleTimerSlow != 0:
  726. self.killTimer(self.fIdleTimerSlow)
  727. self.fIdleTimerSlow = 0
  728. if self.fContainer.getPluginCount() > 0:
  729. self.ui.act_plugin_remove_all.setEnabled(False)
  730. self.fContainer.removeAllPlugins() # FIXME?
  731. self.slot_engineStop(False)
  732. # -----------------------------------------------------------------
  733. @pyqtSlot()
  734. def slot_handleSIGUSR1(self):
  735. print("Got SIGUSR1 -> Saving project now")
  736. #QTimer.singleShot(0, self, SLOT("slot_fileSave)
  737. @pyqtSlot()
  738. def slot_handleSIGTERM(self):
  739. print("Got SIGTERM -> Closing now")
  740. self.close()
  741. # -----------------------------------------------------------------
  742. def timerEvent(self, event):
  743. if event.timerId() == self.fIdleTimerFast:
  744. if not Carla.isPlugin:
  745. Carla.host.engine_idle()
  746. self.refreshTransport()
  747. self.fContainer.idleFast()
  748. elif event.timerId() == self.fIdleTimerSlow:
  749. self.fContainer.idleSlow()
  750. QMainWindow.timerEvent(self, event)
  751. def closeEvent(self, event):
  752. if self.fIdleTimerFast != 0:
  753. self.killTimer(self.fIdleTimerFast)
  754. self.fIdleTimerFast = 0
  755. if self.fIdleTimerSlow != 0:
  756. self.killTimer(self.fIdleTimerSlow)
  757. self.fIdleTimerSlow = 0
  758. self.saveSettings()
  759. if Carla.host.is_engine_running():
  760. Carla.host.set_engine_about_to_close()
  761. self.ui.act_plugin_remove_all.setEnabled(False)
  762. self.fContainer.removeAllPlugins()
  763. self.stopEngine()
  764. QMainWindow.closeEvent(self, event)
  765. # ------------------------------------------------------------------------------------------------------------
  766. # Engine callback
  767. def EngineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):
  768. if pluginId < 0 or not Carla.gui:
  769. return
  770. if action == CALLBACK_DEBUG:
  771. Carla.gui.DebugCallback.emit(pluginId, value1, value2, value3, cString(valueStr))
  772. elif action == CALLBACK_PLUGIN_ADDED:
  773. Carla.gui.PluginAddedCallback.emit(pluginId)
  774. elif action == CALLBACK_PLUGIN_REMOVED:
  775. Carla.gui.PluginRemovedCallback.emit(pluginId)
  776. elif action == CALLBACK_PLUGIN_RENAMED:
  777. Carla.gui.PluginRenamedCallback.emit(pluginId, valueStr)
  778. elif action == CALLBACK_PARAMETER_VALUE_CHANGED:
  779. Carla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)
  780. elif action == CALLBACK_PARAMETER_DEFAULT_CHANGED:
  781. Carla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)
  782. elif action == CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:
  783. Carla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)
  784. elif action == CALLBACK_PARAMETER_MIDI_CC_CHANGED:
  785. Carla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)
  786. elif action == CALLBACK_PROGRAM_CHANGED:
  787. Carla.gui.ProgramChangedCallback.emit(pluginId, value1)
  788. elif action == CALLBACK_MIDI_PROGRAM_CHANGED:
  789. Carla.gui.MidiProgramChangedCallback.emit(pluginId, value1)
  790. elif action == CALLBACK_NOTE_ON:
  791. Carla.gui.NoteOnCallback.emit(pluginId, value1, value2, value3)
  792. elif action == CALLBACK_NOTE_OFF:
  793. Carla.gui.NoteOffCallback.emit(pluginId, value1, value2)
  794. elif action == CALLBACK_SHOW_GUI:
  795. Carla.gui.ShowGuiCallback.emit(pluginId, value1)
  796. elif action == CALLBACK_UPDATE:
  797. Carla.gui.UpdateCallback.emit(pluginId)
  798. elif action == CALLBACK_RELOAD_INFO:
  799. Carla.gui.ReloadInfoCallback.emit(pluginId)
  800. elif action == CALLBACK_RELOAD_PARAMETERS:
  801. Carla.gui.ReloadParametersCallback.emit(pluginId)
  802. elif action == CALLBACK_RELOAD_PROGRAMS:
  803. Carla.gui.ReloadProgramsCallback.emit(pluginId)
  804. elif action == CALLBACK_RELOAD_ALL:
  805. Carla.gui.ReloadAllCallback.emit(pluginId)
  806. elif action == CALLBACK_PATCHBAY_CLIENT_ADDED:
  807. Carla.gui.PatchbayClientAddedCallback.emit(value1, value2, cString(valueStr))
  808. elif action == CALLBACK_PATCHBAY_CLIENT_REMOVED:
  809. Carla.gui.PatchbayClientRemovedCallback.emit(value1, cString(valueStr))
  810. elif action == CALLBACK_PATCHBAY_CLIENT_RENAMED:
  811. Carla.gui.PatchbayClientRenamedCallback.emit(value1, cString(valueStr))
  812. elif action == CALLBACK_PATCHBAY_PORT_ADDED:
  813. Carla.gui.PatchbayPortAddedCallback.emit(value1, value2, int(value3), cString(valueStr))
  814. elif action == CALLBACK_PATCHBAY_PORT_REMOVED:
  815. Carla.gui.PatchbayPortRemovedCallback.emit(value1, value2, cString(valueStr))
  816. elif action == CALLBACK_PATCHBAY_PORT_RENAMED:
  817. Carla.gui.PatchbayPortRenamedCallback.emit(value1, value2, cString(valueStr))
  818. elif action == CALLBACK_PATCHBAY_CONNECTION_ADDED:
  819. Carla.gui.PatchbayConnectionAddedCallback.emit(value1, value2, value3)
  820. elif action == CALLBACK_PATCHBAY_CONNECTION_REMOVED:
  821. Carla.gui.PatchbayConnectionRemovedCallback.emit(value1)
  822. elif action == CALLBACK_PATCHBAY_ICON_CHANGED:
  823. Carla.gui.PatchbayIconChangedCallback.emit(value1, value2)
  824. elif action == CALLBACK_BUFFER_SIZE_CHANGED:
  825. Carla.gui.BufferSizeChangedCallback.emit(value1)
  826. elif action == CALLBACK_SAMPLE_RATE_CHANGED:
  827. Carla.gui.SampleRateChangedCallback.emit(value3)
  828. elif action == CALLBACK_PROCESS_MODE_CHANGED:
  829. Carla.gui.ProcessModeChangedCallback.emit(value1)
  830. elif action == CALLBACK_ENGINE_STARTED:
  831. Carla.gui.EngineStartedCallback.emit(cString(valueStr))
  832. elif action == CALLBACK_ENGINE_STOPPED:
  833. Carla.gui.EngineStoppedChangedCallback.emit()
  834. elif action == CALLBACK_NSM_ANNOUNCE:
  835. Carla.gui.NSM_AnnounceCallback.emit(cString(valueStr))
  836. elif action == CALLBACK_NSM_OPEN:
  837. Carla.gui.NSM_OpenCallback.emit(cString(valueStr))
  838. elif action == CALLBACK_NSM_SAVE:
  839. Carla.gui.NSM_SaveCallback.emit()
  840. elif action == CALLBACK_ERROR:
  841. Carla.gui.ErrorCallback.emit(cString(valueStr))
  842. elif action == CALLBACK_QUIT:
  843. Carla.gui.QuitCallback.emit()