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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 CarlaDummyW(object):

  61.     def __init__(self, parent):

  62.         object.__init__(self)

  63. 

  64.     # -----------------------------------------------------------------

  65. 

  66.     def getPluginCount(self):

  67.         return 0

  68. 

  69.     # -----------------------------------------------------------------

  70. 

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

  72.         pass

  73. 

  74.     def removePlugin(self, pluginId):

  75.         pass

  76. 

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

  78.         pass

  79. 

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

  81.         pass

  82. 

  83.     def removeAllPlugins(self):

  84.         pass

  85. 

  86.     # -----------------------------------------------------------------

  87. 

  88.     def engineStarted(self):

  89.         pass

  90. 

  91.     def engineStopped(self):

  92.         pass

  93. 

  94.     def engineChanged(self):

  95.         pass

  96. 

  97.     # -----------------------------------------------------------------

  98. 

  99.     def idleFast(self):

  100.         pass

  101. 

  102.     def idleSlow(self):

  103.         pass

  104. 

  105.     # -----------------------------------------------------------------

  106. 

  107.     def projectLoadingStarted(self):

  108.         pass

  109. 

  110.     def projectLoadingFinished(self):

  111.         pass

  112. 

  113.     # -----------------------------------------------------------------

  114. 

  115.     def saveSettings(self, settings):

  116.         pass

  117. 

  118.     def showEditDialog(self, pluginId):

  119.         pass

  120. 

  121. # ------------------------------------------------------------------------------------------------------------

  122. # Host Window

  123. 

  124. class HostWindow(QMainWindow):

  125.     # signals

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

  127.     PluginAddedCallback = pyqtSignal(int, str)

  128.     PluginRemovedCallback = pyqtSignal(int)

  129.     PluginRenamedCallback = pyqtSignal(int, str)

  130.     PluginUnavailableCallback = pyqtSignal(int, str)

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

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

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

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

  135.     ProgramChangedCallback = pyqtSignal(int, int)

  136.     MidiProgramChangedCallback = pyqtSignal(int, int)

  137.     OptionChangedCallback = pyqtSignal(int, int, bool)

  138.     UiStateChangedCallback = pyqtSignal(int, int)

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

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

  141.     UpdateCallback = pyqtSignal(int)

  142.     ReloadInfoCallback = pyqtSignal(int)

  143.     ReloadParametersCallback = pyqtSignal(int)

  144.     ReloadProgramsCallback = pyqtSignal(int)

  145.     ReloadAllCallback = pyqtSignal(int)

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

  147.     PatchbayClientRemovedCallback = pyqtSignal(int)

  148.     PatchbayClientRenamedCallback = pyqtSignal(int, str)

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

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

  151.     PatchbayPortRemovedCallback = pyqtSignal(int, int)

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

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

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

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

  156.     EngineStoppedCallback = pyqtSignal()

  157.     ProcessModeChangedCallback = pyqtSignal(int)

  158.     TransportModeChangedCallback = pyqtSignal(int)

  159.     BufferSizeChangedCallback = pyqtSignal(int)

  160.     SampleRateChangedCallback = pyqtSignal(float)

  161.     InfoCallback = pyqtSignal(str)

  162.     ErrorCallback = pyqtSignal(str)

  163.     QuitCallback = pyqtSignal()

  164.     SIGTERM = pyqtSignal()

  165.     SIGUSR1 = pyqtSignal()

  166. 

  167.     def __init__(self, parent):

  168.         QMainWindow.__init__(self, parent)

  169.         self.ui = ui_carla_host.Ui_CarlaHostW()

  170.         self.ui.setupUi(self)

  171. 

  172.         if False:

  173.             # kdevelop likes this :)

  174.             gCarla.gui  = self

  175.             gCarla.host = Host("")

  176.             self.fContainer = CarlaDummyW(self)

  177. 

  178.         if MACOS and config_UseQt5:

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

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

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

  182.             self.ui.act_help_about_juce.setMenuRole(QAction.AboutQtRole)

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

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

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

  186. 

  187.         # -------------------------------------------------------------

  188.         # Internal stuff

  189. 

  190.         self.fIdleTimerFast = 0

  191.         self.fIdleTimerSlow = 0

  192. 

  193.         self.fIsProjectLoading = False

  194.         self.fProjectFilename  = ""

  195. 

  196.         self.fLadspaRdfNeedsUpdate = True

  197.         self.fLadspaRdfList = []

  198. 

  199.         self.fLastTransportFrame = 0

  200.         self.fLastTransportState = False

  201.         self.fTransportText = ""

  202. 

  203.         # when true, call engineChanged() asap

  204.         self.fEngineChanged = False

  205. 

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

  207.         self.fFirstEngineInit = True

  208. 

  209.         self.fSavedSettings = {}

  210. 

  211.         if gCarla.isPlugin:

  212.             self.fClientName         = "Carla-Plugin"

  213.             self.fSessionManagerName = "Plugin"

  214.         elif LADISH_APP_NAME:

  215.             self.fClientName         = LADISH_APP_NAME

  216.             self.fSessionManagerName = "LADISH"

  217.         elif NSM_URL:

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

  219.             self.fSessionManagerName = "Non Session Manager"

  220.         else:

  221.             self.fClientName         = "Carla"

  222.             self.fSessionManagerName = ""

  223. 

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

  225.         # Load Settings

  226. 

  227.         self.loadSettings(True)

  228. 

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

  230.         # Set up GUI (engine stopped)

  231. 

  232.         if gCarla.isPlugin:

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

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

  235.         else:

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

  237. 

  238.         if self.fSessionManagerName:

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

  240. 

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

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

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

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

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

  246. 

  247.         if gCarla.externalPatchbay:

  248.             self.ui.act_canvas_show_internal.setChecked(False)

  249.             self.ui.act_canvas_show_external.setChecked(True)

  250.         else:

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

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

  253. 

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

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

  256. 

  257.         self.setTransportMenuEnabled(False)

  258. 

  259.         # -------------------------------------------------------------

  260.         # Set up GUI (disk)

  261. 

  262.         self.fDirModel = QFileSystemModel(self)

  263.         self.fDirModel.setRootPath(HOME)

  264. 

  265.         if gCarla.host is not None:

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

  267. 

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

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

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

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

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

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

  274. 

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

  276.         # Set up GUI (disk)

  277. 

  278.         #self.item1 = QListWidgetItem(self.ui.lw_plugins)

  279.         #self.item1.setFlags(Qt.ItemIsSelectable|Qt.ItemIsEnabled|Qt.ItemIsDragEnabled)

  280.         #self.item1.setIcon(QIcon(":/bitmaps/thumbs/zita-rev1.png"))

  281.         #self.item1.setText("zita-rev1")

  282.         #item1.setTextAlignment(Qt.ali)

  283.         #self.ui.lw_plugins.()

  284. 

  285.         # -------------------------------------------------------------

  286. 

  287.         self.setProperWindowTitle()

  288. 

  289.         # -------------------------------------------------------------

  290.         # Connect actions to functions

  291. 

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

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

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

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

  296. 

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

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

  299. 

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

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

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

  303. 

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

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

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

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

  308. 

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

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

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

  312. 

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

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

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

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

  317. 

  318.         self.DebugCallback.connect(self.slot_handleDebugCallback)

  319. 

  320.         self.PluginAddedCallback.connect(self.slot_handlePluginAddedCallback)

  321.         self.PluginRemovedCallback.connect(self.slot_handlePluginRemovedCallback)

  322.         self.PluginRenamedCallback.connect(self.slot_handlePluginRenamedCallback)

  323.         self.PluginUnavailableCallback.connect(self.slot_handlePluginUnavailableCallback)

  324. 

  325.         # parameter (rack, patchbay)

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

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

  328.         # update, reload (rack, patchbay)

  329.         # patchbay

  330. 

  331.         self.EngineStartedCallback.connect(self.slot_handleEngineStartedCallback)

  332.         self.EngineStoppedCallback.connect(self.slot_handleEngineStoppedCallback)

  333. 

  334.         self.ProcessModeChangedCallback.connect(self.slot_handleProcessModeChangedCallback)

  335.         self.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  336. 

  337.         self.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

  338.         self.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

  339. 

  340.         self.InfoCallback.connect(self.slot_handleInfoCallback)

  341.         self.ErrorCallback.connect(self.slot_handleErrorCallback)

  342.         self.QuitCallback.connect(self.slot_handleQuitCallback)

  343. 

  344.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  345.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  346. 

  347.         # -------------------------------------------------------------

  348.         # Final setup

  349. 

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

  351. 

  352.     # -----------------------------------------------------------------

  353.     # Called by containers

  354. 

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

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

  357.         dialog = CarlaSettingsW(self, hasCanvas, hasCanvasGL, hasEngine)

  358.         return dialog.exec_()

  359. 

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

  361.         if showCanvas:

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

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

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

  365.         else:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  380.             self.ui.miniCanvasPreview.hide()

  381. 

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

  383. 

  384.     def updateContainer(self, canvasThemeData):

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

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

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

  388. 

  389.     # -----------------------------------------------------------------

  390.     # Internal stuff (files)

  391. 

  392.     def loadProjectNow(self):

  393.         if not self.fProjectFilename:

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

  395. 

  396.         self.fContainer.projectLoadingStarted()

  397.         self.fIsProjectLoading = True

  398. 

  399.         if gCarla.host is not None:

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

  401. 

  402.         self.fIsProjectLoading = False

  403.         self.fContainer.projectLoadingFinished()

  404. 

  405.     @pyqtSlot()

  406.     def slot_loadProjectNow(self):

  407.         self.loadProjectNow()

  408. 

  409.     def loadProjectLater(self, filename):

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

  411.         self.setProperWindowTitle()

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

  413. 

  414.     def saveProjectNow(self):

  415.         if not self.fProjectFilename:

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

  417. 

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

  419. 

  420.     # -----------------------------------------------------------------

  421.     # Internal stuff (engine)

  422. 

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

  424.         if gCarla.isPlugin:

  425.             return "Plugin"

  426.         if self.fSessionManagerName == "Non Session Manager":

  427.             return "JACK"

  428. 

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

  430. 

  431.         # -------------------------------------------------------------

  432.         # read settings

  433. 

  434.         # bool values

  435.         try:

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

  437.         except:

  438.             forceStereo = CARLA_DEFAULT_FORCE_STEREO

  439. 

  440.         try:

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

  442.         except:

  443.             preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  444. 

  445.         try:

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

  447.         except:

  448.             preferUiBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  449. 

  450.         try:

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

  452.         except:

  453.             uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  454. 

  455.         # int values

  456.         try:

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

  458.         except:

  459.             maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  460. 

  461.         # int values

  462.         try:

  463.             useCustomSkins = settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS, CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS, type=bool)

  464.         except:

  465.             useCustomSkins = CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS

  466. 

  467.         try:

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

  469.         except:

  470.             uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  471. 

  472.         # enums

  473.         try:

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

  475.         except:

  476.             processMode = CARLA_DEFAULT_PROCESS_MODE

  477. 

  478.         try:

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

  480.         except:

  481.             transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  482. 

  483.         # driver name

  484.         try:

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

  486.         except:

  487.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  488. 

  489.         # driver options

  490.         try:

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

  492.         except:

  493.             audioDevice = ""

  494. 

  495.         try:

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

  497.         except:

  498.             audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  499. 

  500.         try:

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

  502.         except:

  503.             audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  504. 

  505.         try:

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

  507.         except:

  508.             audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  509. 

  510.         if gCarla.processModeForced:

  511.             processMode = gCarla.processMode

  512. 

  513.         # -------------------------------------------------------------

  514.         # fix things if needed

  515. 

  516.         if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  517.             forceStereo = True

  518.         elif processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

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

  520.             processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  521. 

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

  523.             transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  524. 

  525.         if gCarla.host is None:

  526.             return audioDriver

  527. 

  528.         # -------------------------------------------------------------

  529.         # apply to engine

  530. 

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

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

  533. 

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

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

  536. 

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

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

  539. 

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

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

  542. 

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

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

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

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

  547. 

  548.         # save this for later

  549.         gCarla.maxParameters  = maxParameters

  550.         gCarla.useCustomSkins = useCustomSkins

  551. 

  552.         # return selected driver name

  553.         return audioDriver

  554. 

  555.     def startEngine(self):

  556.         audioDriver = self.setEngineSettings()

  557. 

  558.         if gCarla.host is not None and not gCarla.host.engine_init(audioDriver, self.fClientName):

  559.             if self.fFirstEngineInit:

  560.                 self.fFirstEngineInit = False

  561.                 return

  562. 

  563.             audioError = gCarla.host.get_last_error()

  564. 

  565.             if audioError:

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

  567.             else:

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

  569.             return

  570. 

  571.         self.fFirstEngineInit = False

  572. 

  573.     def stopEngine(self):

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

  575.             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"

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

  577.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  578.             if ask != QMessageBox.Yes:

  579.                 return

  580. 

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

  582.             self.fContainer.removeAllPlugins()

  583. 

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

  585.             print(gCarla.host.get_last_error())

  586. 

  587.     # -----------------------------------------------------------------

  588.     # Internal stuff (plugins)

  589. 

  590.     def getExtraPtr(self, plugin):

  591.         ptype = plugin['type']

  592. 

  593.         if ptype == PLUGIN_LADSPA:

  594.             uniqueId = plugin['uniqueId']

  595. 

  596.             self.maybeLoadRDFs()

  597. 

  598.             for rdfItem in self.fLadspaRdfList:

  599.                 if rdfItem.UniqueID == uniqueId:

  600.                     return pointer(rdfItem)

  601. 

  602.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

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

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

  605. 

  606.         return None

  607. 

  608.     def maybeLoadRDFs(self):

  609.         if not self.fLadspaRdfNeedsUpdate:

  610.             return

  611. 

  612.         self.fLadspaRdfNeedsUpdate = False

  613.         self.fLadspaRdfList = []

  614. 

  615.         if not haveLRDF:

  616.             return

  617. 

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

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

  620. 

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

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

  623. 

  624.             try:

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

  626.             except:

  627.                 pass

  628. 

  629.             frLadspa.close()

  630. 

  631.     def setLoadRDFsNeeded(self):

  632.         self.fLadspaRdfNeedsUpdate = True

  633. 

  634.     # -----------------------------------------------------------------

  635.     # Internal stuff (transport)

  636. 

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

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

  639.             return

  640. 

  641.         timeInfo = gCarla.host.get_transport_info()

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

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

  644. 

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

  646.             if playing:

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

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

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

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

  651.             else:

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

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

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

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

  656. 

  657.             self.fLastTransportState = playing

  658. 

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

  660.             time = frame / gCarla.sampleRate

  661.             secs = time % 60

  662.             mins = (time / 60) % 60

  663.             hrs  = (time / 3600) % 60

  664. 

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

  666.             self.fLastTransportFrame = frame

  667. 

  668.     def setTransportMenuEnabled(self, enabled):

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

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

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

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

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

  674. 

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

  676.     # Internal stuff (settings)

  677. 

  678.     def loadSettings(self, firstTime):

  679.         settings = QSettings()

  680. 

  681.         if firstTime:

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

  683. 

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

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

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

  687. 

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

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

  690.             else:

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

  692. 

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

  694. 

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

  696. 

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

  698.                 if i == 0: continue

  699.                 folder = diskFolders[i]

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

  701. 

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

  703.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  704. 

  705.         # ---------------------------------------------

  706. 

  707.         if gCarla.host is not None and not gCarla.isPlugin:

  708.             # engine

  709.             self.setEngineSettings(settings)

  710. 

  711.             # plugin paths

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

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

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

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

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

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

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

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

  720. 

  721.             gCarla.host.setenv("LADSPA_PATH", splitter.join(LADSPA_PATH))

  722.             gCarla.host.setenv("DSSI_PATH",   splitter.join(DSSI_PATH))

  723.             gCarla.host.setenv("LV2_PATH",    splitter.join(LV2_PATH))

  724.             gCarla.host.setenv("VST_PATH",    splitter.join(VST_PATH))

  725.             gCarla.host.setenv("AU_PATH",     splitter.join(AU_PATH))

  726.             gCarla.host.setenv("GIG_PATH",    splitter.join(GIG_PATH))

  727.             gCarla.host.setenv("SF2_PATH",    splitter.join(SF2_PATH))

  728.             gCarla.host.setenv("SFZ_PATH",    splitter.join(SFZ_PATH))

  729. 

  730.         # ---------------------------------------------

  731. 

  732.         # TODO

  733. 

  734.         self.fSavedSettings = {

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

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

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

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

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

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

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

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

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

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

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

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

  747.         }

  748. 

  749.         # ---------------------------------------------

  750. 

  751.         if self.fIdleTimerFast != 0:

  752.             self.killTimer(self.fIdleTimerFast)

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

  754. 

  755.         if self.fIdleTimerSlow != 0:

  756.             self.killTimer(self.fIdleTimerSlow)

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

  758. 

  759.     def saveSettings(self):

  760.         settings = QSettings()

  761. 

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

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

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

  765. 

  766.         diskFolders = []

  767. 

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

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

  770. 

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

  772. 

  773.         self.fContainer.saveSettings(settings)

  774. 

  775.     # -----------------------------------------------------------------

  776.     # Internal stuff (gui)

  777. 

  778.     def killTimers(self):

  779.         if self.fIdleTimerFast != 0:

  780.             self.killTimer(self.fIdleTimerFast)

  781.             self.fIdleTimerFast = 0

  782. 

  783.         if self.fIdleTimerSlow != 0:

  784.             self.killTimer(self.fIdleTimerSlow)

  785.             self.fIdleTimerSlow = 0

  786. 

  787.     def setProperWindowTitle(self):

  788.         title = self.fClientName

  789. 

  790.         if self.fProjectFilename:

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

  792.         if self.fSessionManagerName:

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

  794. 

  795.         self.setWindowTitle(title)

  796. 

  797.     # -----------------------------------------------------------------

  798. 

  799.     @pyqtSlot()

  800.     def slot_fileNew(self):

  801.         self.fContainer.removeAllPlugins()

  802.         self.fProjectFilename = ""

  803.         self.setProperWindowTitle()

  804. 

  805.     @pyqtSlot()

  806.     def slot_fileOpen(self):

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

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

  809. 

  810.         if config_UseQt5:

  811.             filename = filename[0]

  812.         if not filename:

  813.             return

  814. 

  815.         newFile = True

  816. 

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

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

  819.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  821. 

  822.         if newFile:

  823.             self.fContainer.removeAllPlugins()

  824.             self.fProjectFilename = filename

  825.             self.setProperWindowTitle()

  826.             self.loadProjectNow()

  827.         else:

  828.             filenameOld = self.fProjectFilename

  829.             self.fProjectFilename = filename

  830.             self.loadProjectNow()

  831.             self.fProjectFilename = filenameOld

  832. 

  833.     @pyqtSlot()

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

  835.         if self.fProjectFilename and not saveAs:

  836.             return self.saveProjectNow()

  837. 

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

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

  840. 

  841.         if config_UseQt5:

  842.             filename = filename[0]

  843.         if not filename:

  844.             return

  845. 

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

  847.             filename += ".carxp"

  848. 

  849.         if self.fProjectFilename != filename:

  850.             self.fProjectFilename = filename

  851.             self.setProperWindowTitle()

  852. 

  853.         self.saveProjectNow()

  854. 

  855.     @pyqtSlot()

  856.     def slot_fileSaveAs(self):

  857.         self.slot_fileSave(True)

  858. 

  859.     # -----------------------------------------------------------------

  860. 

  861.     @pyqtSlot()

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

  863.         if doStart: self.startEngine()

  864. 

  865.         check = gCarla.host is not None and gCarla.host.is_engine_running()

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

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

  868. 

  869.         if not gCarla.isPlugin:

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

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

  872. 

  873.             if not self.fSessionManagerName:

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

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

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

  877. 

  878.             self.setTransportMenuEnabled(check)

  879. 

  880.         if check:

  881.             if not gCarla.isPlugin:

  882.                 self.refreshTransport(True)

  883. 

  884.             self.fContainer.engineStarted()

  885. 

  886.     @pyqtSlot()

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

  888.         if doStop: self.stopEngine()

  889. 

  890.         # FIXME?

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

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

  893.             self.fContainer.removeAllPlugins()

  894. 

  895.         check = gCarla.host.is_engine_running()

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

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

  898. 

  899.         if not gCarla.isPlugin:

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

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

  902. 

  903.             if not self.fSessionManagerName:

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

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

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

  907. 

  908.             self.setTransportMenuEnabled(check)

  909. 

  910.         if not check:

  911.             self.fTextTransport = ""

  912.             self.fContainer.engineStopped()

  913. 

  914.     # -----------------------------------------------------------------

  915. 

  916.     @pyqtSlot()

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

  918.         dialog = PluginDatabaseW(self)

  919. 

  920.         if not dialog.exec_():

  921.             return

  922. 

  923.         if gCarla.host is None:

  924.             return

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

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

  927.             return

  928. 

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

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

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

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

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

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

  935. 

  936.         if pluginToReplace >= 0:

  937.             if not gCarla.host.replace_plugin(pluginToReplace):

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

  939.                 return

  940. 

  941.         ok = gCarla.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr)

  942. 

  943.         if pluginToReplace >= 0:

  944.             gCarla.host.replace_plugin(self.fContainer.getPluginCount())

  945. 

  946.         if not ok:

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

  948. 

  949.     @pyqtSlot()

  950.     def slot_pluginRemoveAll(self):

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

  952. 

  953.         count = self.fContainer.getPluginCount()

  954. 

  955.         if count == 0:

  956.             return

  957. 

  958.         self.fContainer.projectLoadingStarted()

  959. 

  960.         app = QApplication.instance()

  961.         for i in range(count):

  962.             app.processEvents()

  963.             gCarla.host.remove_plugin(count-i-1)

  964. 

  965.         self.fContainer.projectLoadingFinished()

  966. 

  967.         #self.fContainer.removeAllPlugins()

  968.         #gCarla.host.remove_all_plugins()

  969. 

  970.     # -----------------------------------------------------------------

  971. 

  972.     @pyqtSlot(bool)

  973.     def slot_transportPlayPause(self, toggled):

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

  975.             return

  976. 

  977.         if toggled:

  978.             gCarla.host.transport_play()

  979.         else:

  980.             gCarla.host.transport_pause()

  981. 

  982.         self.refreshTransport()

  983. 

  984.     @pyqtSlot()

  985.     def slot_transportStop(self):

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

  987.             return

  988. 

  989.         gCarla.host.transport_pause()

  990.         gCarla.host.transport_relocate(0)

  991. 

  992.         self.refreshTransport()

  993. 

  994.     @pyqtSlot()

  995.     def slot_transportBackwards(self):

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

  997.             return

  998. 

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

  1000. 

  1001.         if newFrame < 0:

  1002.             newFrame = 0

  1003. 

  1004.         gCarla.host.transport_relocate(newFrame)

  1005. 

  1006.     @pyqtSlot()

  1007.     def slot_transportForwards(self):

  1008.         if not gCarla.host.is_engine_running():

  1009.             return

  1010. 

  1011.         newFrame = gCarla.host.get_current_transport_frame() + 100000

  1012.         gCarla.host.transport_relocate(newFrame)

  1013. 

  1014.     # -----------------------------------------------------------------

  1015. 

  1016.     @pyqtSlot()

  1017.     def slot_aboutCarla(self):

  1018.         CarlaAboutW(self).exec_()

  1019. 

  1020.     @pyqtSlot()

  1021.     def slot_aboutJuce(self):

  1022.         JuceAboutW(self).exec_()

  1023. 

  1024.     @pyqtSlot()

  1025.     def slot_aboutQt(self):

  1026.         QApplication.instance().aboutQt()

  1027. 

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

  1029. 

  1030.     @pyqtSlot(int)

  1031.     def slot_diskFolderChanged(self, index):

  1032.         if index < 0:

  1033.             return

  1034.         elif index == 0:

  1035.             filename = HOME

  1036.             self.ui.b_disk_remove.setEnabled(False)

  1037.         else:

  1038.             filename = self.ui.cb_disk.itemData(index)

  1039.             self.ui.b_disk_remove.setEnabled(True)

  1040. 

  1041.         self.fDirModel.setRootPath(filename)

  1042.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1043. 

  1044.     @pyqtSlot()

  1045.     def slot_diskFolderAdd(self):

  1046.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1047. 

  1048.         if newPath:

  1049.             if newPath[-1] == os.sep:

  1050.                 newPath = newPath[:-1]

  1051.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1052.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1053.             self.ui.b_disk_remove.setEnabled(True)

  1054. 

  1055.     @pyqtSlot()

  1056.     def slot_diskFolderRemove(self):

  1057.         index = self.ui.cb_disk.currentIndex()

  1058. 

  1059.         if index <= 0:

  1060.             return

  1061. 

  1062.         self.ui.cb_disk.removeItem(index)

  1063. 

  1064.         if self.ui.cb_disk.currentIndex() == 0:

  1065.             self.ui.b_disk_remove.setEnabled(False)

  1066. 

  1067.     @pyqtSlot(QModelIndex)

  1068.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1069.         filename = self.fDirModel.filePath(modelIndex)

  1070. 

  1071.         if not gCarla.host.load_file(filename):

  1072.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1073.                              self.tr("Failed to load file"),

  1074.                              gCarla.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1075. 

  1076.     # -----------------------------------------------------------------

  1077. 

  1078.     @pyqtSlot(int, int, int, float, str)

  1079.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1080.         print("DEBUG:", pluginId, value1, value2, value3, valueStr)

  1081.         #self.ui.pte_log.appendPlainText(valueStr.replace("", "DEBUG: ").replace("", "ERROR: ").replace("", "").replace("\n", ""))

  1082. 

  1083.     # -----------------------------------------------------------------

  1084. 

  1085.     @pyqtSlot(int, str)

  1086.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1087.         self.fContainer.addPlugin(pluginId, self.fIsProjectLoading)

  1088. 

  1089.         if self.fContainer.getPluginCount() == 1:

  1090.             self.ui.act_plugin_remove_all.setEnabled(True)

  1091. 

  1092.     @pyqtSlot(int)

  1093.     def slot_handlePluginRemovedCallback(self, pluginId):

  1094.         self.fContainer.removePlugin(pluginId)

  1095. 

  1096.         if self.fContainer.getPluginCount() == 0:

  1097.             self.ui.act_plugin_remove_all.setEnabled(False)

  1098. 

  1099.     @pyqtSlot(int, str)

  1100.     def slot_handlePluginRenamedCallback(self, pluginId, newName):

  1101.         self.fContainer.renamePlugin(pluginId, newName)

  1102. 

  1103.     @pyqtSlot(int, str)

  1104.     def slot_handlePluginUnavailableCallback(self, pluginId, errorMsg):

  1105.         self.fContainer.disablePlugin(pluginId, errorMsg)

  1106. 

  1107.     # -----------------------------------------------------------------

  1108. 

  1109.     @pyqtSlot(str)

  1110.     def slot_handleEngineStartedCallback(self, processMode, transportMode, driverName):

  1111.         gCarla.processMode   = processMode

  1112.         gCarla.transportMode = transportMode

  1113.         gCarla.bufferSize    = gCarla.host.get_buffer_size()

  1114.         gCarla.sampleRate    = gCarla.host.get_sample_rate()

  1115. 

  1116.         self.slot_engineStart(False)

  1117. 

  1118.         if self.fIdleTimerFast == 0:

  1119.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1120.         if self.fIdleTimerSlow == 0:

  1121.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1122. 

  1123.     @pyqtSlot()

  1124.     def slot_handleEngineStoppedCallback(self):

  1125.         self.killTimers()

  1126.         self.slot_engineStop(False)

  1127. 

  1128.         gCarla.bufferSize = 0

  1129.         gCarla.sampleRate = 0.0

  1130. 

  1131.     # -----------------------------------------------------------------

  1132. 

  1133.     @pyqtSlot(int)

  1134.     def slot_handleProcessModeChangedCallback(self, newProcessMode):

  1135.         self.fEngineChanged = True

  1136. 

  1137.     @pyqtSlot(int)

  1138.     def slot_handleTransportModeChangedCallback(self, newTransportMode):

  1139.         self.fEngineChanged = True

  1140. 

  1141.     # -----------------------------------------------------------------

  1142. 

  1143.     @pyqtSlot(int)

  1144.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1145.         self.fEngineChanged = True

  1146. 

  1147.     @pyqtSlot(float)

  1148.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1149.         self.fEngineChanged = True

  1150. 

  1151.     # -----------------------------------------------------------------

  1152. 

  1153.     @pyqtSlot(str)

  1154.     def slot_handleInfoCallback(self, info):

  1155.         QMessageBox.information(self, "Information", info)

  1156. 

  1157.     @pyqtSlot(str)

  1158.     def slot_handleErrorCallback(self, error):

  1159.         QMessageBox.critical(self, "Error", error)

  1160. 

  1161.     @pyqtSlot()

  1162.     def slot_handleQuitCallback(self):

  1163.         pass

  1164. 

  1165.     # -----------------------------------------------------------------

  1166. 

  1167.     @pyqtSlot()

  1168.     def slot_handleSIGUSR1(self):

  1169.         print("Got SIGUSR1 -> Saving project now")

  1170.         self.slot_fileSave()

  1171. 

  1172.     @pyqtSlot()

  1173.     def slot_handleSIGTERM(self):

  1174.         print("Got SIGTERM -> Closing now")

  1175.         self.close()

  1176. 

  1177.     # -----------------------------------------------------------------

  1178. 

  1179.     def showEvent(self, event):

  1180.         QMainWindow.showEvent(self, event)

  1181. 

  1182.         # set our gui as parent for all plugins UIs

  1183.         if gCarla.host is not None:

  1184.             winIdStr = "%x" % self.winId()

  1185.             gCarla.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  1186. 

  1187.     def timerEvent(self, event):

  1188.         if event.timerId() == self.fIdleTimerFast:

  1189.             #if not gCarla.isPlugin:

  1190.             gCarla.host.engine_idle()

  1191.             self.refreshTransport()

  1192. 

  1193.             self.fContainer.idleFast()

  1194. 

  1195.         elif event.timerId() == self.fIdleTimerSlow:

  1196.             if self.fEngineChanged:

  1197.                 self.fContainer.engineChanged()

  1198.                 self.fEngineChanged = False

  1199. 

  1200.             self.fContainer.idleSlow()

  1201. 

  1202.         QMainWindow.timerEvent(self, event)

  1203. 

  1204.     def closeEvent(self, event):

  1205.         self.killTimers()

  1206.         self.saveSettings()

  1207. 

  1208.         if gCarla.host is None or gCarla.isPlugin:

  1209.             pass

  1210. 

  1211.         elif gCarla.host.is_engine_running():

  1212.             gCarla.host.set_engine_about_to_close()

  1213. 

  1214.             count = self.fContainer.getPluginCount()

  1215. 

  1216.             if count > 0:

  1217.                 # simulate project loading, to disable container

  1218.                 self.ui.act_plugin_remove_all.setEnabled(False)

  1219.                 self.fContainer.projectLoadingStarted()

  1220. 

  1221.                 app = QApplication.instance()

  1222.                 for i in range(count):

  1223.                     app.processEvents()

  1224.                     gCarla.host.remove_plugin(count-i-1)

  1225. 

  1226.                 app.processEvents()

  1227. 

  1228.                 #self.fContainer.removeAllPlugins()

  1229.                 #gCarla.host.remove_all_plugins()

  1230. 

  1231.             self.stopEngine()

  1232. 

  1233.         QMainWindow.closeEvent(self, event)

  1234. 

  1235. # ------------------------------------------------------------------------------------------------------------

  1236. # Engine callback

  1237. 

  1238. def engineCallback(ptr, action, pluginId, value1, value2, value3, valueStr):

  1239.     if action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  1240.         gCarla.processMode = value1

  1241.         if gCarla.gui is not None:

  1242.             gCarla.gui.ProcessModeChangedCallback.emit(value1)

  1243.         return

  1244. 

  1245.     if action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  1246.         gCarla.transportMode = value1

  1247.         if gCarla.gui is not None:

  1248.             gCarla.gui.TransportModeChangedCallback.emit(value1)

  1249.         return

  1250. 

  1251.     if action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  1252.         gCarla.bufferSize = value1

  1253.         if gCarla.gui is not None:

  1254.             gCarla.gui.BufferSizeChangedCallback.emit(value1)

  1255.         return

  1256. 

  1257.     if action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  1258.         gCarla.sampleRate = value1

  1259.         if gCarla.gui is not None:

  1260.             gCarla.gui.SampleRateChangedCallback.emit(value3)

  1261.         return

  1262. 

  1263.     if gCarla.gui is None:

  1264.         print("WARNING: Got engine callback but UI is not ready : ", pluginId, value1, value2, value3, valueStr)

  1265.         return

  1266. 

  1267.     valueStr = charPtrToString(valueStr)

  1268. 

  1269.     if action == ENGINE_CALLBACK_DEBUG:

  1270.         gCarla.gui.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  1271.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  1272.         gCarla.gui.PluginAddedCallback.emit(pluginId, valueStr)

  1273.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  1274.         gCarla.gui.PluginRemovedCallback.emit(pluginId)

  1275.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  1276.         gCarla.gui.PluginRenamedCallback.emit(pluginId, valueStr)

  1277.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  1278.         gCarla.gui.PluginUnavailableCallback.emit(pluginId, valueStr)

  1279.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  1280.         gCarla.gui.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  1281.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  1282.         gCarla.gui.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  1283.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  1284.         gCarla.gui.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  1285.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  1286.         gCarla.gui.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  1287.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  1288.         gCarla.gui.ProgramChangedCallback.emit(pluginId, value1)

  1289.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  1290.         gCarla.gui.MidiProgramChangedCallback.emit(pluginId, value1)

  1291.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  1292.         gCarla.gui.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  1293.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  1294.         gCarla.gui.UiStateChangedCallback.emit(pluginId, value1)

  1295.     elif action == ENGINE_CALLBACK_NOTE_ON:

  1296.         gCarla.gui.NoteOnCallback.emit(pluginId, value1, value2, int(value3))

  1297.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  1298.         gCarla.gui.NoteOffCallback.emit(pluginId, value1, value2)

  1299.     elif action == ENGINE_CALLBACK_UPDATE:

  1300.         gCarla.gui.UpdateCallback.emit(pluginId)

  1301.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  1302.         gCarla.gui.ReloadInfoCallback.emit(pluginId)

  1303.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  1304.         gCarla.gui.ReloadParametersCallback.emit(pluginId)

  1305.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  1306.         gCarla.gui.ReloadProgramsCallback.emit(pluginId)

  1307.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  1308.         gCarla.gui.ReloadAllCallback.emit(pluginId)

  1309.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  1310.         gCarla.gui.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  1311.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  1312.         gCarla.gui.PatchbayClientRemovedCallback.emit(pluginId)

  1313.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  1314.         gCarla.gui.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  1315.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  1316.         gCarla.gui.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  1317.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  1318.         gCarla.gui.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  1319.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  1320.         gCarla.gui.PatchbayPortRemovedCallback.emit(pluginId, value1)

  1321.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  1322.         gCarla.gui.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  1323.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  1324.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  1325.         gCarla.gui.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  1326.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  1327.         gCarla.gui.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  1328.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  1329.         gCarla.gui.EngineStartedCallback.emit(value1, value2, valueStr)

  1330.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  1331.         gCarla.gui.killTimers()

  1332.         gCarla.gui.EngineStoppedCallback.emit()

  1333.     elif action == ENGINE_CALLBACK_IDLE:

  1334.         QApplication.instance().processEvents()

  1335.     elif action == ENGINE_CALLBACK_INFO:

  1336.         gCarla.gui.InfoCallback.emit(valueStr)

  1337.     elif action == ENGINE_CALLBACK_ERROR:

  1338.         gCarla.gui.ErrorCallback.emit(valueStr)

  1339.     elif action == ENGINE_CALLBACK_QUIT:

  1340.         gCarla.gui.QuitCallback.emit()

  1341. 

  1342. # ------------------------------------------------------------------------------------------------------------

  1343. # File callback

  1344. 

  1345. def fileCallback(ptr, action, isDir, title, filter):

  1346.     if gCarla.gui is None:

  1347.         return None

  1348. 

  1349.     ret = ""

  1350. 

  1351.     if action == FILE_CALLBACK_DEBUG:

  1352.         pass

  1353.     elif action == FILE_CALLBACK_OPEN:

  1354.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  1355.     elif action == FILE_CALLBACK_SAVE:

  1356.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  1357. 

  1358.     if config_UseQt5:

  1359.         ret = ret[0]

  1360.     if not ret:

  1361.         return None

  1362. 

  1363.     gCarla.gui._fileRet = c_char_p(ret.encode("utf-8"))

  1364.     retval = cast(byref(gCarla.gui._fileRet), POINTER(c_uintptr))

  1365.     return retval.contents.value

  1366. 

  1367. # ------------------------------------------------------------------------------------------------------------

  1368. # Init host

  1369. 

  1370. def initHost(initName, libPrefix = None, failError = True):

  1371.     # --------------------------------------------------------------------------------------------------------

  1372.     # Set Carla library name

  1373. 

  1374.     libname = "libcarla_"

  1375. 

  1376.     if gCarla.isControl:

  1377.         libname += "control2"

  1378.     else:

  1379.         libname += "standalone2"

  1380. 

  1381.     if WINDOWS:

  1382.         libname += ".dll"

  1383.     elif MACOS:

  1384.         libname += ".dylib"

  1385.     else:

  1386.         libname += ".so"

  1387. 

  1388.     # --------------------------------------------------------------------------------------------------------

  1389.     # Set binary dir

  1390. 

  1391.     CWDl = CWD.lower()

  1392. 

  1393.     # standalone, installed system-wide linux

  1394.     if libPrefix is not None:

  1395.         gCarla.pathBinaries  = os.path.join(libPrefix, "lib", "carla")

  1396.         gCarla.pathResources = os.path.join(libPrefix, "share", "carla", "resources")

  1397. 

  1398.     # standalone, local source

  1399.     elif CWDl.endswith("source"):

  1400.         gCarla.pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "bin"))

  1401.         gCarla.pathResources = os.path.join(gCarla.pathBinaries, "resources")

  1402. 

  1403.     # plugin

  1404.     elif CWDl.endswith("resources"):

  1405.         # installed system-wide linux

  1406.         if CWDl.endswith("/share/carla/resources"):

  1407.             gCarla.pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "lib", "carla"))

  1408.             gCarla.pathResources = CWD

  1409. 

  1410.         # local source

  1411.         elif CWDl.endswith("native-plugins%sresources" % os.sep):

  1412.             gCarla.pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "..", "bin"))

  1413.             gCarla.pathResources = CWD

  1414. 

  1415.         # other

  1416.         else:

  1417.             gCarla.pathBinaries  = os.path.abspath(os.path.join(CWD, ".."))

  1418.             gCarla.pathResources = CWD

  1419. 

  1420.     # everything else

  1421.     else:

  1422.         gCarla.pathBinaries  = CWD

  1423.         gCarla.pathResources = os.path.join(gCarla.pathBinaries, "resources")

  1424. 

  1425.     # --------------------------------------------------------------------------------------------------------

  1426.     # Fail if binary dir is not found

  1427. 

  1428.     if not os.path.exists(gCarla.pathBinaries):

  1429.         if failError:

  1430.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  1431.             sys.exit(1)

  1432.         return

  1433. 

  1434.     # --------------------------------------------------------------------------------------------------------

  1435.     # Print info

  1436. 

  1437.     print("Carla %s started, status:" % VERSION)

  1438.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  1439.     print("  Qt version:     %s" % qVersion())

  1440.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  1441.     print("  Binary dir:     %s" % gCarla.pathBinaries)

  1442.     print("  Resources dir:  %s" % gCarla.pathResources)

  1443. 

  1444.     # --------------------------------------------------------------------------------------------------------

  1445.     # Init host

  1446. 

  1447.     if gCarla.host is None:

  1448.         try:

  1449.             gCarla.host = Host(os.path.join(gCarla.pathBinaries, libname))

  1450.         except:

  1451.             print("hmmmm...")

  1452.             return

  1453. 

  1454.     gCarla.host.set_engine_callback(engineCallback)

  1455.     gCarla.host.set_file_callback(fileCallback)

  1456. 

  1457.     # If it's a plugin the paths are already set

  1458.     if not gCarla.isPlugin:

  1459.         gCarla.host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, gCarla.pathBinaries)

  1460.         gCarla.host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, gCarla.pathResources)

  1461. 

  1462.         if not gCarla.isControl:

  1463.             gCarla.host.set_engine_option(ENGINE_OPTION_NSM_INIT, os.getpid(), initName)

  1464. 

  1465. # ------------------------------------------------------------------------------------------------------------