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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2014 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Config)

  21. 

  22. from carla_config import *

  23. 

  24. # ------------------------------------------------------------------------------------------------------------

  25. # Imports (Global)

  26. 

  27. if config_UseQt5:

  28.     from PyQt5.QtCore import qCritical, QFileInfo, QModelIndex, QTimer

  29.     from PyQt5.QtGui import QPalette

  30.     from PyQt5.QtWidgets import QAction, QApplication, QFileSystemModel, QListWidgetItem, QMainWindow

  31. else:

  32.     from PyQt4.QtCore import qCritical, QFileInfo, QModelIndex, QTimer

  33.     from PyQt4.QtGui import QApplication, QFileSystemModel, QListWidgetItem, QMainWindow, QPalette

  34. 

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

  36. # Imports (Custom)

  37. 

  38. import ui_carla_host

  39. 

  40. from carla_app import *

  41. from carla_database import *

  42. from carla_settings import *

  43. from carla_widgets import *

  44. 

  45. # ------------------------------------------------------------------------------------------------------------

  46. # PatchCanvas defines

  47. 

  48. CANVAS_ANTIALIASING_SMALL = 1

  49. CANVAS_EYECANDY_SMALL     = 1

  50. 

  51. # ------------------------------------------------------------------------------------------------------------

  52. # Session Management support

  53. 

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

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

  56. 

  57. # ------------------------------------------------------------------------------------------------------------

  58. # Dummy widget

  59. 

  60. class HostWidgetMeta(object):

  61. #class HostWidgetMeta(metaclass=ABCMeta):

  62. 

  63.     # --------------------------------------------------------------------------------------------------------

  64. 

  65.     #def addPlugin(self, pluginId, isProjectLoading):

  66.         #raise NotImplementedError

  67. 

  68.     #def removePlugin(self, pluginId):

  69.         #raise NotImplementedError

  70. 

  71.     #def renamePlugin(self, pluginId, newName):

  72.         #raise NotImplementedError

  73. 

  74.     #def disablePlugin(self, pluginId, errorMsg):

  75.         #raise NotImplementedError

  76. 

  77.     def removeAllPlugins(self):

  78.         raise NotImplementedError

  79. 

  80.     def engineStarted(self):

  81.         raise NotImplementedError

  82. 

  83.     def engineStopped(self):

  84.         raise NotImplementedError

  85. 

  86.     def idleFast(self):

  87.         raise NotImplementedError

  88. 

  89.     def idleSlow(self):

  90.         raise NotImplementedError

  91. 

  92.     def projectLoadingStarted(self):

  93.         raise NotImplementedError

  94. 

  95.     def projectLoadingFinished(self):

  96.         raise NotImplementedError

  97. 

  98.     def saveSettings(self, settings):

  99.         raise NotImplementedError

  100. 

  101.     def showEditDialog(self, pluginId):

  102.         raise NotImplementedError

  103. 

  104. # ------------------------------------------------------------------------------------------------------------

  105. # Host Window

  106. 

  107. class HostWindow(QMainWindow):

  108.     # signals

  109.     SIGTERM = pyqtSignal()

  110.     SIGUSR1 = pyqtSignal()

  111. 

  112.     # --------------------------------------------------------------------------------------------------------

  113. 

  114.     def __init__(self, host):

  115.         QMainWindow.__init__(self)

  116.         self.host = host

  117.         self.ui = ui_carla_host.Ui_CarlaHostW()

  118.         self.ui.setupUi(self)

  119. 

  120.         if False:

  121.             # kdevelop likes this :)

  122.             host = CarlaHostMeta()

  123.             self.host = host

  124.             self.fContainer = HostWidgetMeta(self, host)

  125.             gCarla.gui = self

  126. 

  127.         # ----------------------------------------------------------------------------------------------------

  128.         # Internal stuff

  129. 

  130.         self.fSampleRate = 0.0

  131. 

  132.         self.fIdleTimerFast = 0

  133.         self.fIdleTimerSlow = 0

  134. 

  135.         self.fLadspaRdfNeedsUpdate = True

  136.         self.fLadspaRdfList = []

  137. 

  138.         self.fLastTransportFrame = 0

  139.         self.fLastTransportState = False

  140.         self.fTransportText = ""

  141. 

  142.         self.fProjectFilename = ""

  143.         self.fIsProjectLoading = False

  144. 

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

  146.         self.fFirstEngineInit = True

  147. 

  148.         # to be filled with key-value pairs of current settings

  149.         self.fSavedSettings = {}

  150. 

  151.         if host.isPlugin:

  152.             self.fClientName         = "Carla-Plugin"

  153.             self.fSessionManagerName = "Plugin"

  154.         elif LADISH_APP_NAME:

  155.             self.fClientName         = LADISH_APP_NAME

  156.             self.fSessionManagerName = "LADISH"

  157.         elif NSM_URL:

  158.             self.fClientName         = "Carla" # "Carla.tmp"

  159.             self.fSessionManagerName = "Non Session Manager"

  160.         else:

  161.             self.fClientName         = "Carla"

  162.             self.fSessionManagerName = ""

  163. 

  164.         # ----------------------------------------------------------------------------------------------------

  165.         # Set up GUI (engine stopped)

  166. 

  167.         if self.host.isPlugin:

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

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

  170.         else:

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

  172. 

  173.         if self.fSessionManagerName:

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

  175. 

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

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

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

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

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

  181. 

  182.         self.ui.act_canvas_show_internal.setChecked(True)

  183.         self.ui.act_canvas_show_external.setChecked(False)

  184. 

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

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

  187. 

  188.         self.ui.dockWidgetTitleBar = QWidget(self)

  189.         self.ui.dockWidget.setTitleBarWidget(self.ui.dockWidgetTitleBar)

  190. 

  191.         self.setTransportMenuEnabled(False)

  192. 

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

  194.         # Set up GUI (disk)

  195. 

  196.         self.fDirModel = QFileSystemModel(self)

  197.         self.fDirModel.setRootPath(HOME)

  198.         self.fDirModel.setNameFilters(host.get_supported_file_extensions().split(";"))

  199. 

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

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

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

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

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

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

  206. 

  207.         # ----------------------------------------------------------------------------------------------------

  208.         # Set up GUI (special stuff for Mac OS)

  209. 

  210.         if MACOS and config_UseQt5:

  211.             self.ui.act_file_quit.setMenuRole(QAction.QuitRole)

  212.             self.ui.act_settings_configure.setMenuRole(QAction.PreferencesRole)

  213.             self.ui.act_help_about.setMenuRole(QAction.AboutRole)

  214.             self.ui.act_help_about_juce.setMenuRole(QAction.AboutRole)

  215.             self.ui.act_help_about_qt.setMenuRole(QAction.AboutQtRole)

  216.             self.ui.menu_Settings.setTitle("Panels")

  217.             #self.ui.menu_Help.hide()

  218. 

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

  220.         # Load Settings

  221. 

  222.         self.loadSettings(True)

  223. 

  224.         # ----------------------------------------------------------------------------------------------------

  225.         # Connect actions to functions

  226. 

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

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

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

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

  231. 

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

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

  234. 

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

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

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

  238. 

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

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

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

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

  243. 

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

  245.         self.ui.act_help_about_juce.triggered.connect(self.slot_aboutJuce)

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

  247. 

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

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

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

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

  252. 

  253.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  254.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  255. 

  256.         host.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  257.         host.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  258.         host.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  259. 

  260.         host.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  261.         host.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  262. 

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

  264.         host.InfoCallback.connect(self.slot_handleInfoCallback)

  265.         host.ErrorCallback.connect(self.slot_handleErrorCallback)

  266.         host.QuitCallback.connect(self.slot_handleQuitCallback)

  267. 

  268.         # ----------------------------------------------------------------------------------------------------

  269.         # Final setup

  270. 

  271.         self.setProperWindowTitle()

  272. 

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

  274. 

  275.     # --------------------------------------------------------------------------------------------------------

  276. 

  277.     def setProperWindowTitle(self):

  278.         title = self.fClientName

  279. 

  280.         if self.fProjectFilename:

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

  282.         if self.fSessionManagerName:

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

  284. 

  285.         self.setWindowTitle(title)

  286. 

  287.     # --------------------------------------------------------------------------------------------------------

  288.     # Called by containers

  289. 

  290.     def isProjectLoading(self):

  291.         return self.fIsProjectLoading

  292. 

  293.     def getSavedSettings(self):

  294.         return self.fSavedSettings

  295. 

  296.     def setLoadRDFsNeeded(self):

  297.         self.fLadspaRdfNeedsUpdate = True

  298. 

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

  300.         hasEngine = bool(self.fSessionManagerName != "Non Session Manager")

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

  302.         return dialog.exec_()

  303. 

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

  305.         if showCanvas:

  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[CARLA_KEY_CUSTOM_PAINTING])

  309.         else:

  310.             self.ui.act_canvas_show_internal.setEnabled(False)

  311.             self.ui.act_canvas_show_external.setEnabled(False)

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  326.             self.ui.miniCanvasPreview.hide()

  327. 

  328.         self.setCentralWidget(self.fContainer)

  329.         self.ui.centralwidget = self.fContainer

  330. 

  331.     def updateContainer(self, canvasThemeData):

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

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

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

  335. 

  336.     # --------------------------------------------------------------------------------------------------------

  337.     # Called by the signal handler

  338. 

  339.     @pyqtSlot()

  340.     def slot_handleSIGUSR1(self):

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

  342.         self.slot_fileSave()

  343. 

  344.     @pyqtSlot()

  345.     def slot_handleSIGTERM(self):

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

  347.         self.close()

  348. 

  349.     # --------------------------------------------------------------------------------------------------------

  350.     # Internal stuff (files)

  351. 

  352.     def loadProjectNow(self):

  353.         if not self.fProjectFilename:

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

  355. 

  356.         self.fContainer.projectLoadingStarted()

  357.         self.fIsProjectLoading = True

  358. 

  359.         self.host.load_project(self.fProjectFilename)

  360. 

  361.         self.fIsProjectLoading = False

  362.         self.fContainer.projectLoadingFinished()

  363. 

  364.     def loadProjectLater(self, filename):

  365.         self.fProjectFilename = QFileInfo(filename).absoluteFilePath()

  366.         self.setProperWindowTitle()

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

  368. 

  369.     def saveProjectNow(self):

  370.         if not self.fProjectFilename:

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

  372. 

  373.         self.host.save_project(self.fProjectFilename)

  374. 

  375.     # --------------------------------------------------------------------------------------------------------

  376. 

  377.     @pyqtSlot()

  378.     def slot_fileNew(self):

  379.         self.fContainer.removeAllPlugins()

  380.         self.fProjectFilename = ""

  381.         self.setProperWindowTitle()

  382. 

  383.     @pyqtSlot()

  384.     def slot_fileOpen(self):

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

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

  387. 

  388.         if config_UseQt5:

  389.             filename = filename[0]

  390.         if not filename:

  391.             return

  392. 

  393.         newFile = True

  394. 

  395.         if self.host.get_current_plugin_count() > 0:

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

  397.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  399. 

  400.         if newFile:

  401.             self.fContainer.removeAllPlugins()

  402.             self.fProjectFilename = filename

  403.             self.setProperWindowTitle()

  404.             self.loadProjectNow()

  405.         else:

  406.             filenameOld = self.fProjectFilename

  407.             self.fProjectFilename = filename

  408.             self.loadProjectNow()

  409.             self.fProjectFilename = filenameOld

  410. 

  411.     @pyqtSlot()

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

  413.         if self.fProjectFilename and not saveAs:

  414.             return self.saveProjectNow()

  415. 

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

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

  418. 

  419.         if config_UseQt5:

  420.             filename = filename[0]

  421.         if not filename:

  422.             return

  423. 

  424.         if not filename.lower().endswith(".carxp"):

  425.             filename += ".carxp"

  426. 

  427.         if self.fProjectFilename != filename:

  428.             self.fProjectFilename = filename

  429.             self.setProperWindowTitle()

  430. 

  431.         self.saveProjectNow()

  432. 

  433.     @pyqtSlot()

  434.     def slot_fileSaveAs(self):

  435.         self.slot_fileSave(True)

  436. 

  437.     @pyqtSlot()

  438.     def slot_loadProjectNow(self):

  439.         self.loadProjectNow()

  440. 

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

  442.     # Internal stuff (engine)

  443. 

  444.     def setEngineSettings(self):

  445.         settings = QSettings("falkTX", "Carla2")

  446. 

  447.         # ----------------------------------------------------------------------------------------------------

  448.         # main settings

  449. 

  450.         setHostSettings(self.host)

  451. 

  452.         # ----------------------------------------------------------------------------------------------------

  453.         # plugin paths

  454. 

  455.         LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  456.         DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  457.         LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  458.         VST_PATH    = toList(settings.value(CARLA_KEY_PATHS_VST,    CARLA_DEFAULT_VST_PATH))

  459.         VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  460.         AU_PATH     = toList(settings.value(CARLA_KEY_PATHS_AU,     CARLA_DEFAULT_AU_PATH))

  461.         GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  462.         SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  463.         SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  464. 

  465.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  466.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  467.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  468.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST,    splitter.join(VST_PATH))

  469.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  470.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_AU,     splitter.join(AU_PATH))

  471.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  472.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  473.         self.host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  474. 

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

  476.         # don't continue if plugin

  477. 

  478.         if self.host.isPlugin:

  479.             return "Plugin"

  480. 

  481.         # ----------------------------------------------------------------------------------------------------

  482.         # driver and device settings

  483. 

  484.         # driver name

  485.         try:

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

  487.         except:

  488.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  489. 

  490.         # driver options

  491.         try:

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

  493.         except:

  494.             audioDevice = ""

  495. 

  496.         try:

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

  498.         except:

  499.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  500. 

  501.         try:

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

  503.         except:

  504.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  505. 

  506.         try:

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

  508.         except:

  509.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  510. 

  511.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  512.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  513.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  514.         self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  515. 

  516.         # ----------------------------------------------------------------------------------------------------

  517.         # fix things if needed

  518. 

  519.         if audioDriver != "JACK" and self.host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  520.             self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  521. 

  522.         # ----------------------------------------------------------------------------------------------------

  523.         # return selected driver name

  524. 

  525.         return audioDriver

  526. 

  527.     # --------------------------------------------------------------------------------------------------------

  528. 

  529.     @pyqtSlot()

  530.     def slot_engineStart(self):

  531.         audioDriver = self.setEngineSettings()

  532. 

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

  534.             if self.fFirstEngineInit:

  535.                 self.fFirstEngineInit = False

  536.                 return

  537. 

  538.             audioError = self.host.get_last_error()

  539. 

  540.             if audioError:

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

  542.             else:

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

  544.             return

  545. 

  546.         self.fFirstEngineInit = False

  547. 

  548.     @pyqtSlot()

  549.     def slot_engineStop(self):

  550.         if self.host.get_current_plugin_count() > 0:

  551.             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"

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

  553.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  554.             if ask != QMessageBox.Yes:

  555.                 return

  556. 

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

  558.             self.fContainer.removeAllPlugins()

  559. 

  560.         if self.host.is_engine_running() and not self.host.engine_close():

  561.             print(self.host.get_last_error())

  562. 

  563.     # --------------------------------------------------------------------------------------------------------

  564. 

  565.     @pyqtSlot(str)

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

  567.         self.fSampleRate = self.host.get_sample_rate()

  568. 

  569.         check = self.host.is_engine_running()

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

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

  572. 

  573.         if not self.host.isPlugin:

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

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

  576. 

  577.             if not self.fSessionManagerName:

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

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

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

  581. 

  582.             self.setTransportMenuEnabled(check)

  583. 

  584.         if check:

  585.             self.fLastTransportFrame = 0

  586.             self.fLastTransportState = False

  587.             self.refreshTransport(True)

  588.             self.fContainer.engineStarted()

  589. 

  590.         self.startTimers()

  591. 

  592.     @pyqtSlot()

  593.     def slot_handleEngineStoppedCallback(self):

  594.         self.killTimers()

  595. 

  596.         # just in case

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

  598.         self.fContainer.removeAllPlugins()

  599. 

  600.         check = self.host.is_engine_running()

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

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

  603. 

  604.         if not self.host.isPlugin:

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

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

  607. 

  608.             if not self.fSessionManagerName:

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

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

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

  612. 

  613.             self.setTransportMenuEnabled(check)

  614. 

  615.         if not check:

  616.             self.fTextTransport = ""

  617.             self.fContainer.engineStopped()

  618. 

  619.         self.fSampleRate = 0.0

  620. 

  621.     @pyqtSlot(float)

  622.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  623.         self.fSampleRate = newSampleRate

  624.         self.refreshTransport(True)

  625. 

  626.     # --------------------------------------------------------------------------------------------------------

  627.     # Internal stuff (plugins)

  628. 

  629.     @pyqtSlot()

  630.     def slot_pluginAdd(self, pluginToReplace = -1):

  631.         dialog = PluginDatabaseW(self, self.host)

  632. 

  633.         if not dialog.exec_():

  634.             return

  635. 

  636.         if not self.host.is_engine_running():

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

  638.             return

  639. 

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

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

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

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

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

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

  646. 

  647.         if pluginToReplace >= 0:

  648.             if not self.host.replace_plugin(pluginToReplace):

  649.                 CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to replace plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  650.                 return

  651. 

  652.         ok = self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr)

  653. 

  654.         if pluginToReplace >= 0:

  655.             self.host.replace_plugin(self.host.get_max_plugin_number())

  656. 

  657.         if not ok:

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

  659. 

  660.     @pyqtSlot()

  661.     def slot_pluginRemoveAll(self):

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

  663. 

  664.         count = self.host.get_current_plugin_count()

  665. 

  666.         if count == 0:

  667.             return

  668. 

  669.         self.fContainer.projectLoadingStarted()

  670. 

  671.         app = QApplication.instance()

  672.         for i in range(count):

  673.             app.processEvents()

  674.             self.host.remove_plugin(count-i-1)

  675. 

  676.         self.fContainer.projectLoadingFinished()

  677. 

  678.         #self.fContainer.removeAllPlugins()

  679.         #self.host.remove_all_plugins()

  680. 

  681.     # --------------------------------------------------------------------------------------------------------

  682. 

  683.     @pyqtSlot(int, str)

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

  685.         self.ui.act_plugin_remove_all.setEnabled(self.host.get_current_plugin_count() > 0)

  686. 

  687.     @pyqtSlot(int)

  688.     def slot_handlePluginRemovedCallback(self, pluginId):

  689.         self.ui.act_plugin_remove_all.setEnabled(self.host.get_current_plugin_count() > 0)

  690. 

  691.     # --------------------------------------------------------------------------------------------------------

  692.     # Internal stuff (plugin data)

  693. 

  694.     def getExtraPtr(self, plugin):

  695.         ptype = plugin['type']

  696. 

  697.         if ptype == PLUGIN_LADSPA:

  698.             uniqueId = plugin['uniqueId']

  699. 

  700.             self.maybeLoadRDFs()

  701. 

  702.             for rdfItem in self.fLadspaRdfList:

  703.                 if rdfItem.UniqueID == uniqueId:

  704.                     return pointer(rdfItem)

  705. 

  706.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

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

  708.                 global _true

  709.                 _true = c_char_p("true".encode("utf-8"))

  710.                 return _true

  711. 

  712.         return None

  713. 

  714.     def maybeLoadRDFs(self):

  715.         if not self.fLadspaRdfNeedsUpdate:

  716.             return

  717. 

  718.         self.fLadspaRdfNeedsUpdate = False

  719.         self.fLadspaRdfList = []

  720. 

  721.         if not haveLRDF:

  722.             return

  723. 

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

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

  726. 

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

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

  729. 

  730.             try:

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

  732.             except:

  733.                 pass

  734. 

  735.             frLadspa.close()

  736. 

  737.     # --------------------------------------------------------------------------------------------------------

  738.     # Internal stuff (timers)

  739. 

  740.     def startTimers(self):

  741.         if self.fIdleTimerFast == 0:

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

  743. 

  744.         if self.fIdleTimerSlow == 0:

  745.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  746. 

  747.     def restartTimersIfNeeded(self):

  748.         if self.fIdleTimerFast != 0:

  749.             self.killTimer(self.fIdleTimerFast)

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

  751. 

  752.         if self.fIdleTimerSlow != 0:

  753.             self.killTimer(self.fIdleTimerSlow)

  754.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  755. 

  756.     def killTimers(self):

  757.         if self.fIdleTimerFast != 0:

  758.             self.killTimer(self.fIdleTimerFast)

  759.             self.fIdleTimerFast = 0

  760. 

  761.         if self.fIdleTimerSlow != 0:

  762.             self.killTimer(self.fIdleTimerSlow)

  763.             self.fIdleTimerSlow = 0

  764. 

  765.     # --------------------------------------------------------------------------------------------------------

  766.     # Internal stuff (transport)

  767. 

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

  769.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  770.             return

  771. 

  772.         timeInfo = self.host.get_transport_info()

  773.         playing  = timeInfo['playing']

  774.         frame    = timeInfo['frame']

  775. 

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

  777.             if playing:

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

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

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

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

  782.             else:

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

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

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

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

  787. 

  788.             self.fLastTransportState = playing

  789. 

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

  791.             time = frame / self.fSampleRate

  792.             secs = time % 60

  793.             mins = (time / 60) % 60

  794.             hrs  = (time / 3600) % 60

  795. 

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

  797.             self.fLastTransportFrame = frame

  798. 

  799.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  805. 

  806.     @pyqtSlot(bool)

  807.     def slot_transportPlayPause(self, toggled):

  808.         if not self.host.is_engine_running():

  809.             return

  810. 

  811.         if toggled:

  812.             self.host.transport_play()

  813.         else:

  814.             self.host.transport_pause()

  815. 

  816.         self.refreshTransport()

  817. 

  818.     @pyqtSlot()

  819.     def slot_transportStop(self):

  820.         if not self.host.is_engine_running():

  821.             return

  822. 

  823.         self.host.transport_pause()

  824.         self.host.transport_relocate(0)

  825. 

  826.         self.refreshTransport()

  827. 

  828.     @pyqtSlot()

  829.     def slot_transportBackwards(self):

  830.         if not self.host.is_engine_running():

  831.             return

  832. 

  833.         newFrame = self.host.get_current_transport_frame() - 100000

  834. 

  835.         if newFrame < 0:

  836.             newFrame = 0

  837. 

  838.         self.host.transport_relocate(newFrame)

  839. 

  840.     @pyqtSlot()

  841.     def slot_transportForwards(self):

  842.         if not self.host.is_engine_running():

  843.             return

  844. 

  845.         newFrame = self.host.get_current_transport_frame() + 100000

  846.         self.host.transport_relocate(newFrame)

  847. 

  848.     # -----------------------------------------------------------------

  849.     # Internal stuff (settings)

  850. 

  851.     def loadSettings(self, firstTime):

  852.         settings = QSettings()

  853. 

  854.         if firstTime:

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

  856. 

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

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

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

  860. 

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

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

  863.             #else:

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

  865. 

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

  867. 

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

  869. 

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

  871.                 if i == 0: continue

  872.                 folder = diskFolders[i]

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

  874. 

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

  876.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  877. 

  878.         # ---------------------------------------------

  879. 

  880.         # TODO

  881. 

  882.         self.fSavedSettings = {

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

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

  885.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:   settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,   CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,   type=bool),

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

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

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

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

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

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

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

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

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

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

  896.         }

  897. 

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

  899. 

  900.         self.setEngineSettings()

  901. 

  902.         self.restartTimersIfNeeded()

  903. 

  904.         # ---------------------------------------------

  905. 

  906.     def saveSettings(self):

  907.         settings = QSettings()

  908. 

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

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

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

  912. 

  913.         diskFolders = []

  914. 

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

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

  917. 

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

  919. 

  920.         self.fContainer.saveSettings(settings)

  921. 

  922.     # -----------------------------------------------------------------

  923.     # Internal stuff (gui)

  924. 

  925.     @pyqtSlot()

  926.     def slot_aboutCarla(self):

  927.         CarlaAboutW(self, self.host).exec_()

  928. 

  929.     @pyqtSlot()

  930.     def slot_aboutJuce(self):

  931.         JuceAboutW(self, self.host).exec_()

  932. 

  933.     @pyqtSlot()

  934.     def slot_aboutQt(self):

  935.         QApplication.instance().aboutQt()

  936. 

  937.     # -----------------------------------------------------------------

  938. 

  939.     @pyqtSlot(int)

  940.     def slot_diskFolderChanged(self, index):

  941.         if index < 0:

  942.             return

  943.         elif index == 0:

  944.             filename = HOME

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

  946.         else:

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

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

  949. 

  950.         self.fDirModel.setRootPath(filename)

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

  952. 

  953.     @pyqtSlot()

  954.     def slot_diskFolderAdd(self):

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

  956. 

  957.         if newPath:

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

  959.                 newPath = newPath[:-1]

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

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

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

  963. 

  964.     @pyqtSlot()

  965.     def slot_diskFolderRemove(self):

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

  967. 

  968.         if index <= 0:

  969.             return

  970. 

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

  972. 

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

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

  975. 

  976.     @pyqtSlot(QModelIndex)

  977.     def slot_fileTreeDoubleClicked(self, modelIndex):

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

  979. 

  980.         if not self.host.load_file(filename):

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

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

  983.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  984. 

  985.     # -----------------------------------------------------------------

  986. 

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

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

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

  990. 

  991.     @pyqtSlot(str)

  992.     def slot_handleInfoCallback(self, info):

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

  994. 

  995.     @pyqtSlot(str)

  996.     def slot_handleErrorCallback(self, error):

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

  998. 

  999.     @pyqtSlot()

  1000.     def slot_handleQuitCallback(self):

  1001.         pass # TODO

  1002. 

  1003.     # -----------------------------------------------------------------

  1004. 

  1005.     def showEvent(self, event):

  1006.         QMainWindow.showEvent(self, event)

  1007. 

  1008.         # set our gui as parent for all plugins UIs

  1009.         winIdStr = "%x" % self.winId()

  1010.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  1011. 

  1012.     def hideEvent(self, event):

  1013.         # disable parent

  1014.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  1015. 

  1016.         QMainWindow.hideEvent(self, event)

  1017. 

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

  1019. 

  1020.     def timerEvent(self, event):

  1021.         if event.timerId() == self.fIdleTimerFast:

  1022.             #if not self.host.isPlugin:

  1023.             self.fContainer.idleFast()

  1024.             self.refreshTransport()

  1025.             self.host.engine_idle()

  1026. 

  1027.         elif event.timerId() == self.fIdleTimerSlow:

  1028.             self.fContainer.idleSlow()

  1029. 

  1030.         QMainWindow.timerEvent(self, event)

  1031. 

  1032.     def closeEvent(self, event):

  1033.         self.killTimers()

  1034.         self.saveSettings()

  1035. 

  1036.         if self.host.isPlugin:

  1037.             pass

  1038. 

  1039.         elif self.host.is_engine_running():

  1040.             self.host.set_engine_about_to_close()

  1041. 

  1042.             count = self.host.get_current_plugin_count()

  1043. 

  1044.             if count > 0:

  1045.                 # simulate project loading, to disable container

  1046.                 self.ui.act_plugin_remove_all.setEnabled(False)

  1047.                 self.fContainer.projectLoadingStarted()

  1048. 

  1049.                 app = QApplication.instance()

  1050.                 for i in range(count):

  1051.                     app.processEvents()

  1052.                     self.host.remove_plugin(count-i-1)

  1053. 

  1054.                 app.processEvents()

  1055. 

  1056.                 #self.fContainer.removeAllPlugins()

  1057.                 #self.host.remove_all_plugins()

  1058. 

  1059.             self.slot_engineStop()

  1060. 

  1061.         QMainWindow.closeEvent(self, event)

  1062. 

  1063. # ------------------------------------------------------------------------------------------------------------

  1064. # Engine callback

  1065. 

  1066. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  1067.     # kdevelop likes this :)

  1068.     if False: host = CarlaHostMeta()

  1069. 

  1070.     # FIXME

  1071.     if host is None: host = gCarla.gui.host

  1072. 

  1073.     if action in (ENGINE_CALLBACK_ENGINE_STARTED,

  1074.                   ENGINE_CALLBACK_PROCESS_MODE_CHANGED,

  1075.                   ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED):

  1076.         if action == ENGINE_CALLBACK_ENGINE_STARTED:

  1077.             host.processMode   = value1

  1078.             host.transportMode = value2

  1079.         elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1080.             host.processMode   = value1

  1081.         elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1082.             host.transportMode = value1

  1083. 

  1084.     valueStr = charPtrToString(valueStr)

  1085. 

  1086.     if action == ENGINE_CALLBACK_DEBUG:

  1087.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1088.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1089.         host.PluginAddedCallback.emit(pluginId, valueStr)

  1090.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1091.         host.PluginRemovedCallback.emit(pluginId)

  1092.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1093.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  1094.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1095.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  1096.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1097.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1098.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1099.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1100.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1101.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1102.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1103.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1104.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1105.         host.ProgramChangedCallback.emit(pluginId, value1)

  1106.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1107.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  1108.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  1109.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  1110.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1111.         host.UiStateChangedCallback.emit(pluginId, value1)

  1112.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1113.         host.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1114.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1115.         host.NoteOffCallback.emit(pluginId, value1, value2)

  1116.     elif action == ENGINE_CALLBACK_UPDATE:

  1117.         host.UpdateCallback.emit(pluginId)

  1118.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1119.         host.ReloadInfoCallback.emit(pluginId)

  1120.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1121.         host.ReloadParametersCallback.emit(pluginId)

  1122.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1123.         host.ReloadProgramsCallback.emit(pluginId)

  1124.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1125.         host.ReloadAllCallback.emit(pluginId)

  1126.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1127.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1128.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1129.         host.PatchbayClientRemovedCallback.emit(pluginId)

  1130.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1131.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1132.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1133.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1134.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1135.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1136.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1137.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1138.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1139.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1140.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1141.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  1142.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  1143.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1144.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1145.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1146.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  1147.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1148.         host.EngineStoppedCallback.emit()

  1149.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1150.         host.ProcessModeChangedCallback.emit(value1)

  1151.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1152.         host.TransportModeChangedCallback.emit(value1)

  1153.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1154.         host.BufferSizeChangedCallback.emit(value1)

  1155.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1156.         host.SampleRateChangedCallback.emit(value3)

  1157.     elif action == ENGINE_CALLBACK_IDLE:

  1158.         QApplication.instance().processEvents()

  1159.     elif action == ENGINE_CALLBACK_INFO:

  1160.         host.InfoCallback.emit(valueStr)

  1161.     elif action == ENGINE_CALLBACK_ERROR:

  1162.         host.ErrorCallback.emit(valueStr)

  1163.     elif action == ENGINE_CALLBACK_QUIT:

  1164.         host.QuitCallback.emit()

  1165. 

  1166. # ------------------------------------------------------------------------------------------------------------

  1167. # File callback

  1168. 

  1169. def fileCallback(ptr, action, isDir, title, filter):

  1170.     ret = ("", "") if config_UseQt5 else ""

  1171. 

  1172.     if action == FILE_CALLBACK_DEBUG:

  1173.         pass

  1174.     elif action == FILE_CALLBACK_OPEN:

  1175.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  1176.     elif action == FILE_CALLBACK_SAVE:

  1177.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  1178. 

  1179.     if config_UseQt5:

  1180.         ret = ret[0]

  1181.     if not ret:

  1182.         return None

  1183. 

  1184.     global fileRet

  1185.     fileRet = c_char_p(ret.encode("utf-8"))

  1186.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  1187.     return retval.contents.value

  1188. 

  1189. # ------------------------------------------------------------------------------------------------------------

  1190. # Init host

  1191. 

  1192. def initHost(initName, libPrefixOrPluginClass, isControl, isPlugin, failError):

  1193.     if isPlugin:

  1194.         PluginClass = libPrefixOrPluginClass

  1195.         libPrefix   = None

  1196.     else:

  1197.         PluginClass = None

  1198.         libPrefix   = libPrefixOrPluginClass

  1199. 

  1200.     # --------------------------------------------------------------------------------------------------------

  1201.     # Set Carla library name

  1202. 

  1203.     libname = "libcarla_"

  1204. 

  1205.     if isControl:

  1206.         libname += "control2"

  1207.     else:

  1208.         libname += "standalone2"

  1209. 

  1210.     if WINDOWS:

  1211.         libname += ".dll"

  1212.     elif MACOS:

  1213.         libname += ".dylib"

  1214.     else:

  1215.         libname += ".so"

  1216. 

  1217.     # --------------------------------------------------------------------------------------------------------

  1218.     # Set binary dir

  1219. 

  1220.     CWDl = CWD.lower()

  1221. 

  1222.     # standalone, installed system-wide linux

  1223.     if libPrefix is not None:

  1224.         pathBinaries  = os.path.join(libPrefix, "lib", "carla")

  1225.         pathResources = os.path.join(libPrefix, "share", "carla", "resources")

  1226. 

  1227.     # standalone, local source

  1228.     elif CWDl.endswith("source"):

  1229.         pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "bin"))

  1230.         pathResources = os.path.join(pathBinaries, "resources")

  1231. 

  1232.     # plugin

  1233.     elif CWDl.endswith("resources"):

  1234.         # installed system-wide linux

  1235.         if CWDl.endswith("/share/carla/resources"):

  1236.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "lib", "carla"))

  1237.             pathResources = CWD

  1238. 

  1239.         # local source

  1240.         elif CWDl.endswith("native-plugins%sresources" % os.sep):

  1241.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "..", "bin"))

  1242.             pathResources = CWD

  1243. 

  1244.         # other

  1245.         else:

  1246.             pathBinaries  = os.path.abspath(os.path.join(CWD, ".."))

  1247.             pathResources = CWD

  1248. 

  1249.     # everything else

  1250.     else:

  1251.         pathBinaries  = CWD

  1252.         pathResources = os.path.join(pathBinaries, "resources")

  1253. 

  1254.     # --------------------------------------------------------------------------------------------------------

  1255.     # Fail if binary dir is not found

  1256. 

  1257.     if not os.path.exists(pathBinaries):

  1258.         if failError:

  1259.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  1260.             sys.exit(1)

  1261.         return

  1262. 

  1263.     # --------------------------------------------------------------------------------------------------------

  1264.     # Print info

  1265. 

  1266.     print("Carla %s started, status:" % VERSION)

  1267.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  1268.     print("  Qt version:     %s" % qVersion())

  1269.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  1270.     print("  Binary dir:     %s" % pathBinaries)

  1271.     print("  Resources dir:  %s" % pathResources)

  1272. 

  1273.     # --------------------------------------------------------------------------------------------------------

  1274.     # Init host

  1275. 

  1276.     if failError:

  1277.         # no try

  1278.         host = PluginClass() if isPlugin else CarlaHostDLL(os.path.join(pathBinaries, libname))

  1279.     else:

  1280.         try:

  1281.             host = PluginClass() if isPlugin else CarlaHostDLL(os.path.join(pathBinaries, libname))

  1282.         except:

  1283.             host = CarlaHostNull()

  1284. 

  1285.     host.isControl = isControl

  1286.     host.isPlugin  = isPlugin

  1287. 

  1288.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  1289.     host.set_file_callback(fileCallback)

  1290. 

  1291.     # If it's a plugin the paths are already set

  1292.     if not isPlugin:

  1293.         host.pathBinaries  = pathBinaries

  1294.         host.pathResources = pathResources

  1295.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  1296.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  1297. 

  1298.         if not isControl:

  1299.             host.set_engine_option(ENGINE_OPTION_NSM_INIT, os.getpid(), initName)

  1300. 

  1301.     return host

  1302. 

  1303. # ------------------------------------------------------------------------------------------------------------

  1304. # Load host settings

  1305. 

  1306. def loadHostSettings(host):

  1307.     # kdevelop likes this :)

  1308.     if False: host = CarlaHostMeta()

  1309. 

  1310.     settings = QSettings("falkTX", "Carla2")

  1311. 

  1312.     # bool values

  1313.     try:

  1314.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  1315.     except:

  1316.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  1317. 

  1318.     try:

  1319.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  1320.     except:

  1321.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  1322. 

  1323.     try:

  1324.         host.preferUiBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  1325.     except:

  1326.         host.preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  1327. 

  1328.     try:

  1329.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  1330.     except:

  1331.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  1332. 

  1333.     # int values

  1334.     try:

  1335.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  1336.     except:

  1337.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  1338. 

  1339.     try:

  1340.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  1341.     except:

  1342.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  1343. 

  1344.     if host.isPlugin:

  1345.         return

  1346. 

  1347.     # enums

  1348.     try:

  1349.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  1350.     except:

  1351.         host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  1352. 

  1353.     if not host.processModeForced:

  1354.         try:

  1355.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  1356.         except:

  1357.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  1358. 

  1359.     # --------------------------------------------------------------------------------------------------------

  1360.     # fix things if needed

  1361. 

  1362.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  1363.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  1364.         host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  1365. 

  1366. # ------------------------------------------------------------------------------------------------------------

  1367. # Set host settings

  1368. 

  1369. def setHostSettings(host):

  1370.     # kdevelop likes this :)

  1371.     if False: host = CarlaHostMeta()

  1372. 

  1373.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  1374.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  1375.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  1376.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  1377.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  1378.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  1379. 

  1380.     if host.isPlugin:

  1381.         return

  1382. 

  1383.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.processMode,         "")

  1384.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  1385. 

  1386. # ------------------------------------------------------------------------------------------------------------