falkTX
/
Carla
mirror of https://github.com/falkTX/Carla
1
0
Fork 0
Code Releases 42 Activity
Audio plugin host https://kx.studio/carla
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1121 Commits
16 Branches
14GB
Tree: 1960bc588e
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '1960bc588e'
${ noResults }
Carla/source/carla_host.py

1202 lines
46KB
Raw Blame History 

  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

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

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

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

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

  24. 

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

  26. # Imports (Custom)

  27. 

  28. import ui_carla_host

  29. 

  30. from carla_database import *

  31. from carla_settings import *

  32. from carla_style import *

  33. from carla_widgets import *

  34. 

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

  36. # PatchCanvas defines

  37. 

  38. CANVAS_ANTIALIASING_SMALL = 1

  39. CANVAS_EYECANDY_SMALL     = 1

  40. 

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

  42. # Session Management support

  43. 

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

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

  46. 

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

  48. # Dummy widget

  49. 

  50. class CarlaDummyW(object):

  51.     def __init__(self, parent):

  52.         object.__init__(self)

  53. 

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

  55. 

  56.     def getPluginCount(self):

  57.         return 0

  58. 

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

  60. 

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

  62.         pass

  63. 

  64.     def removePlugin(self, pluginId):

  65.         pass

  66. 

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

  68.         pass

  69. 

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

  71.         pass

  72. 

  73.     def removeAllPlugins(self):

  74.         pass

  75. 

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

  77. 

  78.     def engineStarted(self):

  79.         pass

  80. 

  81.     def engineStopped(self):

  82.         pass

  83. 

  84.     def engineChanged(self):

  85.         pass

  86. 

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

  88. 

  89.     def idleFast(self):

  90.         pass

  91. 

  92.     def idleSlow(self):

  93.         pass

  94. 

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

  96. 

  97.     def saveSettings(self, settings):

  98.         pass

  99. 

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

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

  104.     # signals

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

  106.     PluginAddedCallback = pyqtSignal(int, str)

  107.     PluginRemovedCallback = pyqtSignal(int)

  108.     PluginRenamedCallback = pyqtSignal(int, str)

  109.     PluginUnavailableCallback = pyqtSignal(int, str)

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

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

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

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

  114.     ProgramChangedCallback = pyqtSignal(int, int)

  115.     MidiProgramChangedCallback = pyqtSignal(int, int)

  116.     UiStateChangedCallback = pyqtSignal(int, int)

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

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

  119.     UpdateCallback = pyqtSignal(int)

  120.     ReloadInfoCallback = pyqtSignal(int)

  121.     ReloadParametersCallback = pyqtSignal(int)

  122.     ReloadProgramsCallback = pyqtSignal(int)

  123.     ReloadAllCallback = pyqtSignal(int)

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

  125.     PatchbayClientRemovedCallback = pyqtSignal(int)

  126.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

  127.     PatchbayClientIconChangedCallback = pyqtSignal(int, int)

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

  129.     PatchbayPortRemovedCallback = pyqtSignal(int, int)

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

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

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

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

  134.     EngineStoppedCallback = pyqtSignal()

  135.     ProcessModeChangedCallback = pyqtSignal(int)

  136.     TransportModeChangedCallback = pyqtSignal(int)

  137.     BufferSizeChangedCallback = pyqtSignal(int)

  138.     SampleRateChangedCallback = pyqtSignal(float)

  139.     InfoCallback = pyqtSignal(str)

  140.     ErrorCallback = pyqtSignal(str)

  141.     QuitCallback = pyqtSignal()

  142.     SIGTERM = pyqtSignal()

  143.     SIGUSR1 = pyqtSignal()

  144. 

  145.     def __init__(self, parent):

  146.         QMainWindow.__init__(self, parent)

  147.         self.ui = ui_carla_host.Ui_CarlaHostW()

  148.         self.ui.setupUi(self)

  149. 

  150.         if False:

  151.             Carla.gui = self

  152.             self.fContainer = CarlaDummyW(self)

  153. 

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

  155.         # Set callback, TODO put somewhere else

  156. 

  157.         Carla.host.set_engine_callback(engineCallback)

  158. 

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

  160.         # Internal stuff

  161. 

  162.         self.fIdleTimerFast = 0

  163.         self.fIdleTimerSlow = 0

  164. 

  165.         self.fIsProjectLoading = False

  166.         self.fProjectFilename  = ""

  167. 

  168.         self.fLadspaRdfNeedsUpdate = True

  169.         self.fLadspaRdfList = []

  170. 

  171.         self.fLastTransportFrame = 0

  172.         self.fLastTransportState = False

  173.         self.fTransportText = ""

  174. 

  175.         # when true, call engineChanged() asap

  176.         self.fEngineChanged = False

  177. 

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

  179.         self.fFirstEngineInit = True

  180. 

  181.         self.fSavedSettings = {}

  182. 

  183.         if LADISH_APP_NAME:

  184.             self.fClientName         = LADISH_APP_NAME

  185.             self.fSessionManagerName = "LADISH"

  186.         elif NSM_URL:

  187.             self.fClientName         = "Carla.tmp"

  188.             self.fSessionManagerName = "Non Session Manager"

  189.         else:

  190.             self.fClientName         = "Carla"

  191.             self.fSessionManagerName = ""

  192. 

  193.         # -------------------------------------------------------------

  194.         # Load Settings

  195. 

  196.         self.loadSettings(True)

  197. 

  198.         # -------------------------------------------------------------

  199.         # Set up GUI (engine stopped)

  200. 

  201.         if Carla.isPlugin:

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

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

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

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

  206.         else:

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

  208. 

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

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

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

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

  213. 

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

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

  216. 

  217.         self.setTransportMenuEnabled(False)

  218. 

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

  220.         # Set up GUI (right panel)

  221. 

  222.         self.fDirModel = QFileSystemModel(self)

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

  224.         self.fDirModel.setRootPath(HOME)

  225. 

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

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

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

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

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

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

  232. 

  233.         self.setProperWindowTitle()

  234. 

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

  236.         # Connect actions to functions

  237. 

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

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

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

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

  242. 

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

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

  245. 

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

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

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

  249. 

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

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

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

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

  254. 

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

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

  257. 

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

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

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

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

  262. 

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

  264. 

  265.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  266.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  267.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  268.         self.PluginUnavailableCallback.connect(self.slot_handlePluginUnavailableCallback)

  269. 

  270.         # parameter (rack, patchbay)

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

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

  273.         # update, reload (rack, patchbay)

  274.         # patchbay

  275. 

  276.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  277.         self.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  278. 

  279.         self.ProcessModeChangedCallback.connect(self.slot_handleProcessModeChangedCallback)

  280.         self.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  281. 

  282.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  283.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  284. 

  285.         self.InfoCallback.connect(self.slot_handleInfoCallback)

  286.         self.ErrorCallback.connect(self.slot_handleErrorCallback)

  287.         self.QuitCallback.connect(self.slot_handleQuitCallback)

  288. 

  289.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  290.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  291. 

  292.         # -------------------------------------------------------------

  293.         # Final setup

  294. 

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

  296. 

  297.     # -----------------------------------------------------------------

  298.     # Called by containers

  299. 

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

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

  302.         return dialog.exec_()

  303. 

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

  305.         if showMiniCanvas:

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

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

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

  309.         else:

  310.             self.ui.miniCanvasPreview.hide()

  311. 

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

  313. 

  314.     def updateContainer(self, canvasThemeData):

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

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

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

  318. 

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

  320.     # Internal stuff (files)

  321. 

  322.     def loadProjectNow(self):

  323.         if not self.fProjectFilename:

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

  325. 

  326.         self.fIsProjectLoading = True

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

  328.         self.fIsProjectLoading = False

  329. 

  330.     @pyqtSlot()

  331.     def slot_loadProjectNow(self):

  332.         self.loadProjectNow()

  333. 

  334.     def loadProjectLater(self, filename):

  335.         self.fProjectFilename = filename

  336.         self.setProperWindowTitle()

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

  338. 

  339.     def saveProjectNow(self):

  340.         if not self.fProjectFilename:

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

  342. 

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

  344. 

  345.     # -----------------------------------------------------------------

  346.     # Internal stuff (engine)

  347. 

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

  349.         if Carla.isPlugin:

  350.             return "Plugin"

  351. 

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

  353. 

  354.         # -------------------------------------------------------------

  355.         # read settings

  356. 

  357.         # bool values

  358.         try:

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

  360.         except:

  361.             forceStereo = CARLA_DEFAULT_FORCE_STEREO

  362. 

  363.         try:

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

  365.         except:

  366.             preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  367. 

  368.         try:

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

  370.         except:

  371.             preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  372. 

  373.         try:

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

  375.         except:

  376.             uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  377. 

  378.         # int values

  379.         try:

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

  381.         except:

  382.             maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  383. 

  384.         try:

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

  386.         except:

  387.             uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  388. 

  389.         # enums

  390.         try:

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

  392.         except:

  393.             processMode = CARLA_DEFAULT_PROCESS_MODE

  394. 

  395.         try:

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

  397.         except:

  398.             transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  399. 

  400.         # driver name

  401.         try:

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

  403.         except:

  404.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  405. 

  406.         # driver options

  407.         try:

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

  409.         except:

  410.             audioDevice = ""

  411. 

  412.         try:

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

  414.         except:

  415.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  416. 

  417.         try:

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

  419.         except:

  420.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  421. 

  422.         try:

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

  424.         except:

  425.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  426. 

  427.         # -------------------------------------------------------------

  428.         # fix things if needed

  429. 

  430.         if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  431.             forceStereo = True

  432.         elif processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

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

  434.             processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  435. 

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

  437.             transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  438. 

  439.         # -------------------------------------------------------------

  440.         # apply to engine

  441. 

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

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

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

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

  446. 

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

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

  449. 

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

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

  452. 

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

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

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

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

  457. 

  458.         # save this for later

  459.         Carla.maxParameters = maxParameters

  460. 

  461.         # return selected driver name

  462.         return audioDriver

  463. 

  464.     def startEngine(self):

  465.         audioDriver = self.setEngineSettings()

  466. 

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

  468.             if self.fFirstEngineInit:

  469.                 self.fFirstEngineInit = False

  470.                 return

  471. 

  472.             audioError = Carla.host.get_last_error()

  473. 

  474.             if audioError:

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

  476.             else:

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

  478.             return

  479. 

  480.         self.fFirstEngineInit = False

  481. 

  482.     def stopEngine(self):

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

  484.             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"

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

  486.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  487.             if ask != QMessageBox.Yes:

  488.                 return

  489. 

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

  491.             self.fContainer.removeAllPlugins()

  492. 

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

  494.             print(Carla.host.get_last_error())

  495. 

  496.     # -----------------------------------------------------------------

  497.     # Internal stuff (plugins)

  498. 

  499.     def getExtraPtr(self, plugin):

  500.         ptype = plugin['type']

  501. 

  502.         if ptype == PLUGIN_LADSPA:

  503.             uniqueId = plugin['uniqueId']

  504. 

  505.             self.maybeLoadRDFs()

  506. 

  507.             for rdfItem in self.fLadspaRdfList:

  508.                 if rdfItem.UniqueID == uniqueId:

  509.                     return pointer(rdfItem)

  510. 

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

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

  513.                 # return a dummy non-null pointer

  514.                 INTPOINTER = POINTER(c_int)

  515.                 int1 = c_int(0x1)

  516.                 addr = addressof(int1)

  517.                 return cast(addr, INTPOINTER)

  518. 

  519.         return None

  520. 

  521.     def maybeLoadRDFs(self):

  522.         if not self.fLadspaRdfNeedsUpdate:

  523.             return

  524. 

  525.         self.fLadspaRdfNeedsUpdate = False

  526.         self.fLadspaRdfList = []

  527. 

  528.         if not haveLRDF:

  529.             return

  530. 

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

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

  533. 

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

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

  536. 

  537.             try:

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

  539.             except:

  540.                 pass

  541. 

  542.             frLadspa.close()

  543. 

  544.     def setLoadRDFsNeeded(self):

  545.         self.fLadspaRdfNeedsUpdate = True

  546. 

  547.     # -----------------------------------------------------------------

  548.     # Internal stuff (transport)

  549. 

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

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

  552.             return

  553. 

  554.         timeInfo = Carla.host.get_transport_info()

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

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

  557. 

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

  559.             if playing:

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

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

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

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

  564.             else:

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

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

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

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

  569. 

  570.             self.fLastTransportState = playing

  571. 

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

  573.             time = frame / Carla.sampleRate

  574.             secs = time % 60

  575.             mins = (time / 60) % 60

  576.             hrs  = (time / 3600) % 60

  577. 

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

  579.             self.fLastTransportFrame = frame

  580. 

  581.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  587. 

  588.     # -----------------------------------------------------------------

  589.     # Internal stuff (settings)

  590. 

  591.     def loadSettings(self, firstTime):

  592.         settings = QSettings()

  593. 

  594.         if firstTime:

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

  596. 

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

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

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

  600. 

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

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

  603.             #else:

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

  605. 

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

  607. 

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

  609. 

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

  611.                 if i == 0: continue

  612.                 folder = diskFolders[i]

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

  614. 

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

  616.                 self.setUnifiedTitleAndToolBarOnMac(True)

  617. 

  618.         # ---------------------------------------------

  619.         # plugin checks

  620. 

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

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

  623. 

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

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

  626. 

  627.         # ---------------------------------------------

  628. 

  629.         if not Carla.isPlugin:

  630.             # engine

  631.             self.setEngineSettings(settings)

  632. 

  633.             # plugin paths

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

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

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

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

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

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

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

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

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

  643. 

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

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

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

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

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

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

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

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

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

  653. 

  654.         # ---------------------------------------------

  655. 

  656.         # TODO

  657. 

  658.         self.fSavedSettings = {

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

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

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

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

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

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

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

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

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

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

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

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

  671.         }

  672. 

  673.         # ---------------------------------------------

  674. 

  675.         if self.fIdleTimerFast != 0:

  676.             self.killTimer(self.fIdleTimerFast)

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

  678. 

  679.         if self.fIdleTimerSlow != 0:

  680.             self.killTimer(self.fIdleTimerSlow)

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

  682. 

  683.     def saveSettings(self):

  684.         settings = QSettings()

  685. 

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

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

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

  689. 

  690.         diskFolders = []

  691. 

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

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

  694. 

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

  696. 

  697.         self.fContainer.saveSettings(settings)

  698. 

  699.     # -----------------------------------------------------------------

  700.     # Internal stuff (gui)

  701. 

  702.     def setProperWindowTitle(self):

  703.         title = self.fClientName

  704. 

  705.         if self.fProjectFilename:

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

  707.         if self.fSessionManagerName:

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

  709. 

  710.         self.setWindowTitle(title)

  711. 

  712.     # -----------------------------------------------------------------

  713. 

  714.     @pyqtSlot()

  715.     def slot_fileNew(self):

  716.         self.fContainer.removeAllPlugins()

  717.         self.fProjectFilename = ""

  718.         self.setProperWindowTitle()

  719. 

  720.     @pyqtSlot()

  721.     def slot_fileOpen(self):

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

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

  724. 

  725.         if not filenameTry:

  726.             return

  727. 

  728.         newFile = True

  729. 

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

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

  732.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  733.             newFile = ask == QMessageBox.Yes

  734. 

  735.         if newFile:

  736.             self.fContainer.removeAllPlugins()

  737.             self.fProjectFilename = filenameTry

  738.             self.setProperWindowTitle()

  739.             self.loadProjectNow()

  740.         else:

  741.             filenameOld = self.fProjectFilename

  742.             self.fProjectFilename = filenameTry

  743.             self.loadProjectNow()

  744.             self.fProjectFilename = filenameOld

  745. 

  746.     @pyqtSlot()

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

  748.         if self.fProjectFilename and not saveAs:

  749.             return self.saveProjectNow()

  750. 

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

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

  753. 

  754.         if not filenameTry:

  755.             return

  756. 

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

  758.             filenameTry += ".carxp"

  759. 

  760.         if self.fProjectFilename != filenameTry:

  761.             self.fProjectFilename = filenameTry

  762.             self.setProperWindowTitle()

  763. 

  764.         self.saveProjectNow()

  765. 

  766.     @pyqtSlot()

  767.     def slot_fileSaveAs(self):

  768.         self.slot_fileSave(True)

  769. 

  770.     # -----------------------------------------------------------------

  771. 

  772.     @pyqtSlot()

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

  774.         if doStart: self.startEngine()

  775. 

  776.         check = Carla.host.is_engine_running()

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

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

  779. 

  780.         if not Carla.isPlugin:

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

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

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

  784. 

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

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

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

  788. 

  789.             self.setTransportMenuEnabled(check)

  790. 

  791.         if check:

  792.             if not Carla.isPlugin:

  793.                 self.refreshTransport(True)

  794. 

  795.             self.fContainer.engineStarted()

  796. 

  797.     @pyqtSlot()

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

  799.         if doStop: self.stopEngine()

  800. 

  801.         # FIXME?

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

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

  804.             self.fContainer.removeAllPlugins()

  805. 

  806.         check = Carla.host.is_engine_running()

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

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

  809. 

  810.         if not Carla.isPlugin:

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

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

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

  814. 

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

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

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

  818. 

  819.             self.setTransportMenuEnabled(check)

  820. 

  821.         if not check:

  822.             self.fTextTransport = ""

  823.             self.fContainer.engineStopped()

  824. 

  825.     # -----------------------------------------------------------------

  826. 

  827.     @pyqtSlot()

  828.     def slot_pluginAdd(self):

  829.         dialog = PluginDatabaseW(self)

  830. 

  831.         if not dialog.exec_():

  832.             return

  833. 

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

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

  836.             return

  837. 

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

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

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

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

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

  843. 

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

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

  846.             return

  847. 

  848.     @pyqtSlot()

  849.     def slot_pluginRemoveAll(self):

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

  851.         self.fContainer.removeAllPlugins()

  852.         Carla.host.remove_all_plugins()

  853. 

  854.     # -----------------------------------------------------------------

  855. 

  856.     @pyqtSlot(bool)

  857.     def slot_transportPlayPause(self, toggled):

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

  859.             return

  860. 

  861.         if toggled:

  862.             Carla.host.transport_play()

  863.         else:

  864.             Carla.host.transport_pause()

  865. 

  866.         self.refreshTransport()

  867. 

  868.     @pyqtSlot()

  869.     def slot_transportStop(self):

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

  871.             return

  872. 

  873.         Carla.host.transport_pause()

  874.         Carla.host.transport_relocate(0)

  875. 

  876.         self.refreshTransport()

  877. 

  878.     @pyqtSlot()

  879.     def slot_transportBackwards(self):

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

  881.             return

  882. 

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

  884. 

  885.         if newFrame < 0:

  886.             newFrame = 0

  887. 

  888.         Carla.host.transport_relocate(newFrame)

  889. 

  890.     @pyqtSlot()

  891.     def slot_transportForwards(self):

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

  893.             return

  894. 

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

  896.         Carla.host.transport_relocate(newFrame)

  897. 

  898.     # -----------------------------------------------------------------

  899. 

  900.     @pyqtSlot()

  901.     def slot_aboutCarla(self):

  902.         CarlaAboutW(self).exec_()

  903. 

  904.     @pyqtSlot()

  905.     def slot_aboutQt(self):

  906.         QApplication.instance().aboutQt()

  907. 

  908.     # -----------------------------------------------------------------

  909. 

  910.     @pyqtSlot(int)

  911.     def slot_diskFolderChanged(self, index):

  912.         if index < 0:

  913.             return

  914.         elif index == 0:

  915.             filename = HOME

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

  917.         else:

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

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

  920. 

  921.         self.fDirModel.setRootPath(filename)

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

  923. 

  924.     @pyqtSlot()

  925.     def slot_diskFolderAdd(self):

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

  927. 

  928.         if newPath:

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

  930.                 newPath = newPath[:-1]

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

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

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

  934. 

  935.     @pyqtSlot()

  936.     def slot_diskFolderRemove(self):

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

  938. 

  939.         if index <= 0:

  940.             return

  941. 

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

  943. 

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

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

  946. 

  947.     @pyqtSlot(QModelIndex)

  948.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  950. 

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

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

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

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

  955. 

  956.     # -----------------------------------------------------------------

  957. 

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

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

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

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

  962. 

  963.     # -----------------------------------------------------------------

  964. 

  965.     @pyqtSlot(int, str)

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

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

  968. 

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

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

  971. 

  972.     @pyqtSlot(int)

  973.     def slot_handlePluginRemovedCallback(self, pluginId):

  974.         self.fContainer.removePlugin(pluginId)

  975. 

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

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

  978. 

  979.     @pyqtSlot(int, str)

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

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

  982. 

  983.     @pyqtSlot(int, str)

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

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

  986. 

  987.     # -----------------------------------------------------------------

  988. 

  989.     @pyqtSlot(str)

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

  991.         Carla.processMode   = processMode

  992.         Carla.transportMode = transportMode

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

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

  995. 

  996.         self.slot_engineStart(False)

  997. 

  998.         if self.fIdleTimerFast == 0:

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

  1000.         if self.fIdleTimerSlow == 0:

  1001.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*2)

  1002. 

  1003.     @pyqtSlot()

  1004.     def slot_handleEngineStoppedCallback(self):

  1005.         if self.fIdleTimerFast != 0:

  1006.             self.killTimer(self.fIdleTimerFast)

  1007.             self.fIdleTimerFast = 0

  1008. 

  1009.         if self.fIdleTimerSlow != 0:

  1010.             self.killTimer(self.fIdleTimerSlow)

  1011.             self.fIdleTimerSlow = 0

  1012. 

  1013.         self.slot_engineStop(False)

  1014. 

  1015.         Carla.bufferSize = 0

  1016.         Carla.sampleRate = 0.0

  1017. 

  1018.     # -----------------------------------------------------------------

  1019. 

  1020.     @pyqtSlot(int)

  1021.     def slot_handleProcessModeChangedCallback(self, newProcessMode):

  1022.         self.fEngineChanged = True

  1023. 

  1024.     @pyqtSlot(int)

  1025.     def slot_handleTransportModeChangedCallback(self, newTransportMode):

  1026.         self.fEngineChanged = True

  1027. 

  1028.     # -----------------------------------------------------------------

  1029. 

  1030.     @pyqtSlot(int)

  1031.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1032.         self.fEngineChanged = True

  1033. 

  1034.     @pyqtSlot(float)

  1035.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1036.         self.fEngineChanged = True

  1037. 

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

  1039. 

  1040.     @pyqtSlot(str)

  1041.     def slot_handleInfoCallback(self, info):

  1042.         pass

  1043. 

  1044.     @pyqtSlot(str)

  1045.     def slot_handleErrorCallback(self, error):

  1046.         pass

  1047. 

  1048.     @pyqtSlot()

  1049.     def slot_handleQuitCallback(self):

  1050.         pass

  1051. 

  1052.     # -----------------------------------------------------------------

  1053. 

  1054.     @pyqtSlot()

  1055.     def slot_handleSIGUSR1(self):

  1056.         print("Got SIGUSR1 -> Saving project now")

  1057.         QTimer.singleShot(0, self.slot_fileSave)

  1058. 

  1059.     @pyqtSlot()

  1060.     def slot_handleSIGTERM(self):

  1061.         print("Got SIGTERM -> Closing now")

  1062.         self.close()

  1063. 

  1064.     # -----------------------------------------------------------------

  1065. 

  1066.     def timerEvent(self, event):

  1067.         if event.timerId() == self.fIdleTimerFast:

  1068.             if not Carla.isPlugin:

  1069.                 Carla.host.engine_idle()

  1070.                 self.refreshTransport()

  1071. 

  1072.             self.fContainer.idleFast()

  1073. 

  1074.         elif event.timerId() == self.fIdleTimerSlow:

  1075.             if self.fEngineChanged:

  1076.                 self.fContainer.engineChanged()

  1077.                 self.fEngineChanged = False

  1078. 

  1079.             self.fContainer.idleSlow()

  1080. 

  1081.         QMainWindow.timerEvent(self, event)

  1082. 

  1083.     def closeEvent(self, event):

  1084.         if self.fIdleTimerFast != 0:

  1085.             self.killTimer(self.fIdleTimerFast)

  1086.             self.fIdleTimerFast = 0

  1087. 

  1088.         if self.fIdleTimerSlow != 0:

  1089.             self.killTimer(self.fIdleTimerSlow)

  1090.             self.fIdleTimerSlow = 0

  1091. 

  1092.         self.saveSettings()

  1093. 

  1094.         if Carla.host.is_engine_running():

  1095.             Carla.host.set_engine_about_to_close()

  1096.             self.ui.act_plugin_remove_all.setEnabled(False)

  1097.             self.fContainer.removeAllPlugins()

  1098.             self.stopEngine()

  1099. 

  1100.         QMainWindow.closeEvent(self, event)

  1101. 

  1102. # ------------------------------------------------------------------------------------------------------------

  1103. # Engine callback

  1104. 

  1105. def engineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1106.     if action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1107.         Carla.processMode = value1

  1108.         if Carla.gui is not None:

  1109.             Carla.gui.ProcessModeChangedCallback.emit(value1)

  1110.         return

  1111. 

  1112.     if action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1113.         Carla.transportMode = value1

  1114.         if Carla.gui is not None:

  1115.             Carla.gui.TransportModeChangedCallback.emit(value1)

  1116.         return

  1117. 

  1118.     if action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1119.         Carla.bufferSize = value1

  1120.         if Carla.gui is not None:

  1121.             Carla.gui.BufferSizeChangedCallback.emit(value1)

  1122.         return

  1123. 

  1124.     if action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1125.         Carla.sampleRate = value1

  1126.         if Carla.gui is not None:

  1127.             Carla.gui.SampleRateChangedCallback.emit(value3)

  1128.         return

  1129. 

  1130.     if Carla.gui is None:

  1131.         print("WARNING: Got engine callback but UI is not ready : ", pluginId, value1, value2, value3, valueStr)

  1132.         return

  1133. 

  1134.     valueStr = charPtrToString(valueStr)

  1135. 

  1136.     if action == ENGINE_CALLBACK_DEBUG:

  1137.         Carla.gui.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1138.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1139.         Carla.gui.PluginAddedCallback.emit(pluginId, valueStr)

  1140.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1141.         Carla.gui.PluginRemovedCallback.emit(pluginId)

  1142.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

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

  1144.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1145.         Carla.gui.PluginUnavailableCallback.emit(pluginId, valueStr)

  1146.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1147.         Carla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1148.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1149.         Carla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1150.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1151.         Carla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1152.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1153.         Carla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1154.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1155.         Carla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1156.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1157.         Carla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1158.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

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

  1160.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1161.         Carla.gui.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1162.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1163.         Carla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1164.     elif action == ENGINE_CALLBACK_UPDATE:

  1165.         Carla.gui.UpdateCallback.emit(pluginId)

  1166.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1167.         Carla.gui.ReloadInfoCallback.emit(pluginId)

  1168.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

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

  1170.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

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

  1172.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

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

  1174.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1175.         Carla.gui.PatchbayClientAddedCallback.emit(pluginId, value1, valueStr)

  1176.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

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

  1178.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1179.         Carla.gui.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1180.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ICON_CHANGED:

  1181.         Carla.gui.PatchbayClientIconChangedCallback.emit(pluginId, value1)

  1182.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1183.         Carla.gui.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1184.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1185.         Carla.gui.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1186.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1187.         Carla.gui.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1188.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1189.         Carla.gui.PatchbayConnectionAddedCallback.emit(pluginId, value1, value2)

  1190.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1191.         Carla.gui.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1192.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1193.         Carla.gui.EngineStartedCallback.emit(value1, value2, valueStr)

  1194.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1195.         Carla.gui.EngineStoppedCallback.emit()

  1196.     elif action == ENGINE_CALLBACK_INFO:

  1197.         Carla.gui.InfoCallback.emit(valueStr)

  1198.     elif action == ENGINE_CALLBACK_ERROR:

  1199.         Carla.gui.ErrorCallback.emit(valueStr)

  1200.     elif action == ENGINE_CALLBACK_QUIT:

  1201.         Carla.gui.QuitCallback.emit()