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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) 2011-2018 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. import json

  28. 

  29. if config_UseQt5:

  30.     from PyQt5.QtCore import qCritical, QFileInfo, QModelIndex, QPointF, QTimer

  31.     from PyQt5.QtGui import QImage, QPalette

  32.     from PyQt5.QtWidgets import QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QMainWindow

  33. else:

  34.     from PyQt4.QtCore import qCritical, QFileInfo, QModelIndex, QPointF, QTimer

  35.     from PyQt4.QtGui import QImage, QPalette

  36.     from PyQt4.QtGui import QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QMainWindow

  37. 

  38. # ------------------------------------------------------------------------------------------------------------

  39. # Imports (Custom)

  40. 

  41. import patchcanvas

  42. import ui_carla_host

  43. 

  44. from carla_app import *

  45. from carla_database import *

  46. from carla_settings import *

  47. from carla_utils import *

  48. from carla_widgets import *

  49. 

  50. from digitalpeakmeter import DigitalPeakMeter

  51. from pixmapkeyboard import PixmapKeyboardHArea

  52. 

  53. # ------------------------------------------------------------------------------------------------------------

  54. # Try Import OpenGL

  55. 

  56. try:

  57.     if config_UseQt5:

  58.         from PyQt5.QtOpenGL import QGLWidget

  59.     else:

  60.         from PyQt4.QtOpenGL import QGLWidget

  61.     hasGL = True

  62. except:

  63.     hasGL = False

  64. 

  65. # ------------------------------------------------------------------------------------------------------------

  66. # Safe exception hook, needed for PyQt5

  67. 

  68. def sys_excepthook(typ, value, tback):

  69.     return sys.__excepthook__(typ, value, tback)

  70. 

  71. # ------------------------------------------------------------------------------------------------------------

  72. # Session Management support

  73. 

  74. CARLA_CLIENT_NAME = os.getenv("CARLA_CLIENT_NAME")

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

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

  77. 

  78. # ------------------------------------------------------------------------------------------------------------

  79. # Carla Print class

  80. 

  81. class CarlaPrint:

  82.     def __init__(self, err):

  83.         self.err = err

  84. 

  85.     def flush(self):

  86.         gCarla.utils.fflush(self.err)

  87. 

  88.     def write(self, string):

  89.         gCarla.utils.fputs(self.err, string)

  90. 

  91. # ------------------------------------------------------------------------------------------------------------

  92. # Host Window

  93. 

  94. class HostWindow(QMainWindow):

  95. #class HostWindow(QMainWindow, PluginEditParentMeta, metaclass=PyQtMetaClass):

  96.     # signals

  97.     SIGTERM = pyqtSignal()

  98.     SIGUSR1 = pyqtSignal()

  99. 

  100.     # CustomActions

  101.     CUSTOM_ACTION_NONE         = 0

  102.     CUSTOM_ACTION_APP_CLOSE    = 1

  103.     CUSTOM_ACTION_PROJECT_LOAD = 2

  104. 

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

  106. 

  107.     def __init__(self, host, withCanvas, parent=None):

  108.         QMainWindow.__init__(self, parent)

  109.         self.host = host

  110.         self.ui = ui_carla_host.Ui_CarlaHostW()

  111.         self.ui.setupUi(self)

  112.         gCarla.gui = self

  113. 

  114.         if False:

  115.             # kdevelop likes this :)

  116.             host = CarlaHostNull()

  117.             self.host = host

  118. 

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

  120. 

  121.         self.fParentOrSelf = parent or self

  122. 

  123.         # ----------------------------------------------------------------------------------------------------

  124.         # Internal stuff

  125. 

  126.         self.fIdleTimerFast = 0

  127.         self.fIdleTimerSlow = 0

  128. 

  129.         self.fLadspaRdfNeedsUpdate = True

  130.         self.fLadspaRdfList = []

  131. 

  132.         self.fPluginCount = 0

  133.         self.fPluginList  = []

  134. 

  135.         self.fProjectFilename  = ""

  136.         self.fIsProjectLoading = False

  137.         self.fCurrentlyRemovingAllPlugins = False

  138. 

  139.         self.fLastTransportBPM   = 0.0

  140.         self.fLastTransportFrame = 0

  141.         self.fLastTransportState = False

  142.         self.fSampleRate         = 0.0

  143. 

  144.         # run a custom action after engine is properly closed

  145.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  146. 

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

  148.         self.fFirstEngineInit = True

  149. 

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

  151.         self.fSavedSettings = {}

  152. 

  153.         if host.isControl:

  154.             self.fClientName         = "Carla-Control"

  155.             self.fSessionManagerName = "Control"

  156.         elif host.isPlugin:

  157.             self.fClientName         = "Carla-Plugin"

  158.             self.fSessionManagerName = "Plugin"

  159.         elif LADISH_APP_NAME:

  160.             self.fClientName         = LADISH_APP_NAME

  161.             self.fSessionManagerName = "LADISH"

  162.         elif NSM_URL and host.nsmOK:

  163.             self.fClientName         = "Carla.tmp"

  164.             self.fSessionManagerName = "Non Session Manager TMP"

  165.         else:

  166.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  167.             self.fSessionManagerName = ""

  168. 

  169.         # ----------------------------------------------------------------------------------------------------

  170.         # Internal stuff (patchbay)

  171. 

  172.         self.fExportImage = QImage()

  173. 

  174.         self.fPeaksCleared = True

  175. 

  176.         self.fExternalPatchbay = False

  177.         self.fSelectedPlugins  = []

  178. 

  179.         self.fCanvasWidth  = 0

  180.         self.fCanvasHeight = 0

  181.         self.fMiniCanvasUpdateTimeout = 0

  182. 

  183.         self.fWithCanvas = withCanvas

  184. 

  185.         # ----------------------------------------------------------------------------------------------------

  186.         # Set up GUI (engine stopped)

  187. 

  188.         if self.host.isPlugin or self.host.isControl:

  189.             self.ui.act_file_save.setVisible(False)

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

  191.             self.ui.act_engine_start.setVisible(False)

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

  193.             self.ui.act_engine_stop.setVisible(False)

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

  195.             self.ui.menu_Engine.setVisible(False)

  196.             self.ui.menu_Engine.menuAction().setVisible(False)

  197.             self.ui.tabWidget.removeTab(2)

  198. 

  199.             if self.host.isControl:

  200.                 self.ui.act_file_new.setVisible(False)

  201.                 self.ui.act_file_open.setVisible(False)

  202.                 self.ui.act_file_save.setVisible(False)

  203.                 self.ui.act_file_save_as.setVisible(False)

  204.                 self.ui.act_plugin_add.setVisible(False)

  205.                 self.ui.act_plugin_add2.setVisible(False)

  206.                 self.ui.act_plugin_remove_all.setVisible(False)

  207.                 self.ui.act_add_jack.setVisible(False)

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

  209.                 self.ui.menu_Plugin.setVisible(False)

  210.                 self.ui.menu_Plugin.menuAction().setVisible(False)

  211.             else:

  212.                 self.ui.act_file_save_as.setText(self.tr("Export as..."))

  213. 

  214.         else:

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

  216. 

  217.             if WINDOWS:

  218.                 self.ui.tabWidget.removeTab(2)

  219. 

  220.         if not self.host.isControl:

  221.             self.ui.act_file_connect.setEnabled(False)

  222.             self.ui.act_file_connect.setVisible(False)

  223.             self.ui.act_file_refresh.setEnabled(False)

  224.             self.ui.act_file_refresh.setVisible(False)

  225. 

  226.         if self.fSessionManagerName and not self.host.isPlugin:

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

  228. 

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

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

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

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

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

  234. 

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

  236.         self.ui.act_canvas_show_internal.setVisible(False)

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

  238.         self.ui.act_canvas_show_external.setVisible(False)

  239. 

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

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

  242. 

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

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

  245. 

  246.         if not withCanvas:

  247.             self.ui.act_canvas_show_internal.setVisible(False)

  248.             self.ui.act_canvas_show_external.setVisible(False)

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

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

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

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

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

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

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

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

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

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

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

  260.             self.ui.menu_Canvas_Zoom.menuAction().setVisible(False)

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

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

  263.             self.ui.menu_Canvas.menuAction().setVisible(False)

  264.             self.ui.miniCanvasPreview.hide()

  265.             self.ui.tabWidget.removeTab(1)

  266.             if WINDOWS:

  267.                 self.ui.tabWidget.tabBar().hide()

  268. 

  269.             if host.isControl:

  270.                 self.ui.dockWidget.hide()

  271. 

  272.         # ----------------------------------------------------------------------------------------------------

  273.         # Set up GUI (disk)

  274. 

  275.         exts = gCarla.utils.get_supported_file_extensions()

  276. 

  277.         self.fDirModel = QFileSystemModel(self)

  278.         self.fDirModel.setRootPath(HOME)

  279.         self.fDirModel.setNameFilters(tuple(("*." + i) for i in exts))

  280. 

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

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

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

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

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

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

  287. 

  288.         # ----------------------------------------------------------------------------------------------------

  289.         # Set up GUI (transport)

  290. 

  291.         fontMetrics   = QFontMetrics(self.ui.l_transport_bbt.font())

  292.         minValueWidth = fontMetrics.width("000|00|0000")

  293.         minLabelWidth = fontMetrics.width(self.ui.label_transport_frame.text())

  294. 

  295.         labelTimeWidth = fontMetrics.width(self.ui.label_transport_time.text())

  296.         labelBBTWidth  = fontMetrics.width(self.ui.label_transport_bbt.text())

  297. 

  298.         if minLabelWidth < labelTimeWidth:

  299.             minLabelWidth = labelTimeWidth

  300.         if minLabelWidth < labelBBTWidth:

  301.             minLabelWidth = labelBBTWidth

  302. 

  303.         self.ui.label_transport_frame.setMinimumWidth(minLabelWidth + 3)

  304.         self.ui.label_transport_time.setMinimumWidth(minLabelWidth + 3)

  305.         self.ui.label_transport_bbt.setMinimumWidth(minLabelWidth + 3)

  306. 

  307.         self.ui.l_transport_bbt.setMinimumWidth(minValueWidth + 3)

  308.         self.ui.l_transport_frame.setMinimumWidth(minValueWidth + 3)

  309.         self.ui.l_transport_time.setMinimumWidth(minValueWidth + 3)

  310. 

  311.         if host.isControl or host.isPlugin:

  312.             self.ui.b_transport_play.setEnabled(False)

  313.             self.ui.b_transport_stop.setEnabled(False)

  314.             self.ui.b_transport_backwards.setEnabled(False)

  315.             self.ui.b_transport_forwards.setEnabled(False)

  316.             self.ui.group_transport_controls.setEnabled(False)

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

  318.             self.ui.cb_transport_link.setEnabled(False)

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

  320.             self.ui.cb_transport_jack.setEnabled(False)

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

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

  323.             self.ui.dsb_transport_bpm.setReadOnly(True)

  324. 

  325.         if MACOS: # FIXME

  326.             self.ui.cb_transport_link.setEnabled(False)

  327. 

  328.         self.ui.w_transport.setEnabled(False)

  329. 

  330.         # ----------------------------------------------------------------------------------------------------

  331.         # Set up GUI (rack)

  332. 

  333.         self.ui.listWidget.setHostAndParent(self.host, self)

  334. 

  335.         sb = self.ui.listWidget.verticalScrollBar()

  336.         self.ui.rackScrollBar.setMinimum(sb.minimum())

  337.         self.ui.rackScrollBar.setMaximum(sb.maximum())

  338.         self.ui.rackScrollBar.setValue(sb.value())

  339. 

  340.         sb.rangeChanged.connect(self.ui.rackScrollBar.setRange)

  341.         sb.valueChanged.connect(self.ui.rackScrollBar.setValue)

  342.         self.ui.rackScrollBar.rangeChanged.connect(sb.setRange)

  343.         self.ui.rackScrollBar.valueChanged.connect(sb.setValue)

  344. 

  345.         self.ui.rack.setStyleSheet("""

  346.           QLabel#pad_left {

  347.             background-image: url(:/bitmaps/rack_padding_left.png);

  348.             background-repeat: repeat-y;

  349.           }

  350.           QLabel#pad_right {

  351.             background-image: url(:/bitmaps/rack_padding_right.png);

  352.             background-repeat: repeat-y;

  353.           }

  354.           CarlaRackList#CarlaRackList {

  355.             background-color: black;

  356.           }

  357.         """)

  358. 

  359.         # ----------------------------------------------------------------------------------------------------

  360.         # Set up GUI (patchbay)

  361. 

  362.         self.ui.peak_in.setChannelCount(2)

  363.         self.ui.peak_in.setMeterColor(DigitalPeakMeter.COLOR_BLUE)

  364.         self.ui.peak_in.setMeterOrientation(DigitalPeakMeter.VERTICAL)

  365.         self.ui.peak_in.setFixedWidth(25)

  366. 

  367.         self.ui.peak_out.setChannelCount(2)

  368.         self.ui.peak_out.setMeterColor(DigitalPeakMeter.COLOR_GREEN)

  369.         self.ui.peak_out.setMeterOrientation(DigitalPeakMeter.VERTICAL)

  370.         self.ui.peak_out.setFixedWidth(25)

  371. 

  372.         self.ui.scrollArea = PixmapKeyboardHArea(self.ui.patchbay)

  373.         self.ui.keyboard   = self.ui.scrollArea.keyboard

  374.         self.ui.patchbay.layout().addWidget(self.ui.scrollArea, 1, 0, 1, 0)

  375. 

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

  377. 

  378.         self.ui.miniCanvasPreview.setRealParent(self)

  379. 

  380.         # ----------------------------------------------------------------------------------------------------

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

  382. 

  383.         if MACOS:

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

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

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

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

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

  389.             self.ui.menu_Help.menuAction().setVisible(False)

  390. 

  391.         # ----------------------------------------------------------------------------------------------------

  392.         # Load Settings

  393. 

  394.         self.loadSettings(True)

  395. 

  396.         # ----------------------------------------------------------------------------------------------------

  397.         # Set-up Canvas

  398. 

  399.         self.scene = patchcanvas.PatchScene(self, self.ui.graphicsView)

  400.         self.ui.graphicsView.setScene(self.scene)

  401.         self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, bool(self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL))

  402. 

  403.         if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  404.             self.ui.glView = QGLWidget(self)

  405.             self.ui.graphicsView.setViewport(self.ui.glView)

  406.             self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  407. 

  408.         self.setupCanvas()

  409. 

  410.         # ----------------------------------------------------------------------------------------------------

  411.         # Connect actions to functions

  412. 

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

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

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

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

  417. 

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

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

  420. 

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

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

  423.         self.ui.act_plugin_remove_all.triggered.connect(self.slot_confirmRemoveAll)

  424. 

  425.         self.ui.act_add_jack.triggered.connect(self.slot_jackAppAdd)

  426. 

  427.         self.ui.act_plugins_enable.triggered.connect(self.slot_pluginsEnable)

  428.         self.ui.act_plugins_disable.triggered.connect(self.slot_pluginsDisable)

  429.         self.ui.act_plugins_volume100.triggered.connect(self.slot_pluginsVolume100)

  430.         self.ui.act_plugins_mute.triggered.connect(self.slot_pluginsMute)

  431.         self.ui.act_plugins_wet100.triggered.connect(self.slot_pluginsWet100)

  432.         self.ui.act_plugins_bypass.triggered.connect(self.slot_pluginsBypass)

  433.         self.ui.act_plugins_center.triggered.connect(self.slot_pluginsCenter)

  434.         self.ui.act_plugins_compact.triggered.connect(self.slot_pluginsCompact)

  435.         self.ui.act_plugins_expand.triggered.connect(self.slot_pluginsExpand)

  436.         self.ui.act_plugins_panic.triggered.connect(self.slot_pluginsDisable)

  437. 

  438.         self.ui.act_canvas_show_internal.triggered.connect(self.slot_canvasShowInternal)

  439.         self.ui.act_canvas_show_external.triggered.connect(self.slot_canvasShowExternal)

  440.         self.ui.act_canvas_arrange.triggered.connect(self.slot_canvasArrange)

  441.         self.ui.act_canvas_refresh.triggered.connect(self.slot_canvasRefresh)

  442.         self.ui.act_canvas_zoom_fit.triggered.connect(self.slot_canvasZoomFit)

  443.         self.ui.act_canvas_zoom_in.triggered.connect(self.slot_canvasZoomIn)

  444.         self.ui.act_canvas_zoom_out.triggered.connect(self.slot_canvasZoomOut)

  445.         self.ui.act_canvas_zoom_100.triggered.connect(self.slot_canvasZoomReset)

  446.         self.ui.act_canvas_save_image.triggered.connect(self.slot_canvasSaveImage)

  447.         self.ui.act_canvas_arrange.setEnabled(False) # TODO, later

  448. 

  449.         self.ui.act_settings_show_toolbar.toggled.connect(self.slot_showToolbar)

  450.         self.ui.act_settings_show_meters.toggled.connect(self.slot_showCanvasMeters)

  451.         self.ui.act_settings_show_keyboard.toggled.connect(self.slot_showCanvasKeyboard)

  452.         self.ui.act_settings_show_side_panel.toggled.connect(self.slot_showSidePanel)

  453.         self.ui.act_settings_configure.triggered.connect(self.slot_configureCarla)

  454. 

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

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

  457. 

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

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

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

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

  462. 

  463.         self.ui.b_transport_play.clicked.connect(self.slot_transportPlayPause)

  464.         self.ui.b_transport_stop.clicked.connect(self.slot_transportStop)

  465.         self.ui.b_transport_backwards.clicked.connect(self.slot_transportBackwards)

  466.         self.ui.b_transport_forwards.clicked.connect(self.slot_transportForwards)

  467.         self.ui.dsb_transport_bpm.valueChanged.connect(self.slot_transportBpmChanged)

  468.         self.ui.cb_transport_jack.clicked.connect(self.slot_transportJackEnabled)

  469.         self.ui.cb_transport_link.clicked.connect(self.slot_transportLinkEnabled)

  470. 

  471.         self.ui.listWidget.customContextMenuRequested.connect(self.showPluginActionsMenu)

  472. 

  473.         self.ui.graphicsView.horizontalScrollBar().valueChanged.connect(self.slot_horizontalScrollBarChanged)

  474.         self.ui.graphicsView.verticalScrollBar().valueChanged.connect(self.slot_verticalScrollBarChanged)

  475. 

  476.         self.ui.keyboard.noteOn.connect(self.slot_noteOn)

  477.         self.ui.keyboard.noteOff.connect(self.slot_noteOff)

  478. 

  479.         self.ui.miniCanvasPreview.miniCanvasMoved.connect(self.slot_miniCanvasMoved)

  480. 

  481.         self.ui.tabWidget.currentChanged.connect(self.slot_tabChanged)

  482. 

  483.         self.scene.scaleChanged.connect(self.slot_canvasScaleChanged)

  484.         self.scene.sceneGroupMoved.connect(self.slot_canvasItemMoved)

  485.         self.scene.pluginSelected.connect(self.slot_canvasPluginSelected)

  486. 

  487.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  488.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  489. 

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

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

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

  493.         host.ProjectLoadFinishedCallback.connect(self.slot_handleProjectLoadFinishedCallback)

  494. 

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

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

  497.         host.ReloadAllCallback.connect(self.slot_handleReloadAllCallback)

  498. 

  499.         host.NoteOnCallback.connect(self.slot_handleNoteOnCallback)

  500.         host.NoteOffCallback.connect(self.slot_handleNoteOffCallback)

  501. 

  502.         host.UpdateCallback.connect(self.slot_handleUpdateCallback)

  503. 

  504.         host.PatchbayClientAddedCallback.connect(self.slot_handlePatchbayClientAddedCallback)

  505.         host.PatchbayClientRemovedCallback.connect(self.slot_handlePatchbayClientRemovedCallback)

  506.         host.PatchbayClientRenamedCallback.connect(self.slot_handlePatchbayClientRenamedCallback)

  507.         host.PatchbayClientDataChangedCallback.connect(self.slot_handlePatchbayClientDataChangedCallback)

  508.         host.PatchbayPortAddedCallback.connect(self.slot_handlePatchbayPortAddedCallback)

  509.         host.PatchbayPortRemovedCallback.connect(self.slot_handlePatchbayPortRemovedCallback)

  510.         host.PatchbayPortRenamedCallback.connect(self.slot_handlePatchbayPortRenamedCallback)

  511.         host.PatchbayConnectionAddedCallback.connect(self.slot_handlePatchbayConnectionAddedCallback)

  512.         host.PatchbayConnectionRemovedCallback.connect(self.slot_handlePatchbayConnectionRemovedCallback)

  513. 

  514.         host.NSMCallback.connect(self.slot_handleNSMCallback)

  515. 

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

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

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

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

  520. 

  521.         # ----------------------------------------------------------------------------------------------------

  522.         # Final setup

  523. 

  524.         self.ui.text_logs.clear()

  525.         self.setProperWindowTitle()

  526. 

  527.         # Disable non-supported features

  528.         features = gCarla.utils.get_supported_features()

  529. 

  530.         if "link" not in features:

  531.             self.ui.cb_transport_link.setEnabled(False)

  532.             self.ui.cb_transport_link.setVisible(False)

  533. 

  534.         # Plugin needs to have timers always running so it receives messages

  535.         if self.host.isPlugin:

  536.             self.startTimers()

  537. 

  538.         # Qt needs this so it properly creates & resizes the canvas

  539.         self.ui.tabWidget.blockSignals(True)

  540.         self.ui.tabWidget.setCurrentIndex(1)

  541.         self.ui.tabWidget.setCurrentIndex(0)

  542.         self.ui.tabWidget.blockSignals(False)

  543. 

  544.         # Start in patchbay tab if using forced patchbay mode

  545.         if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY and not host.isControl:

  546.             self.ui.tabWidget.setCurrentIndex(1)

  547. 

  548.         # Load initial project file if set

  549.         if not (self.host.isControl or self.host.isPlugin):

  550.             projectFile = getInitialProjectFile(QApplication.instance())

  551. 

  552.             if projectFile:

  553.                 self.loadProjectLater(projectFile)

  554. 

  555.         # For NSM we wait for the open message

  556.         if NSM_URL and host.nsmOK:

  557.             host.nsm_ready(-1)

  558.             return

  559. 

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

  561. 

  562.     # --------------------------------------------------------------------------------------------------------

  563.     # Setup

  564. 

  565.     def compactPlugin(self, pluginId):

  566.         if pluginId > self.fPluginCount:

  567.             return

  568. 

  569.         pitem = self.fPluginList[pluginId]

  570. 

  571.         if pitem is None:

  572.             return

  573. 

  574.         pitem.recreateWidget(True)

  575. 

  576.     def switchPlugins(self, pluginIdA, pluginIdB):

  577.         if pluginIdA == pluginIdB:

  578.             return

  579.         if pluginIdA < 0 or pluginIdB < 0:

  580.             return

  581.         if pluginIdA >= self.fPluginCount or pluginIdB >= self.fPluginCount:

  582.             return

  583. 

  584.         useCustomSkins = self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS]

  585. 

  586.         self.host.switch_plugins(pluginIdA, pluginIdB)

  587. 

  588.         itemA = self.fPluginList[pluginIdA]

  589.         compactA = itemA.isCompacted()

  590.         guiShownA = itemA.isGuiShown()

  591. 

  592.         itemB = self.fPluginList[pluginIdB]

  593.         compactB = itemB.isCompacted()

  594.         guiShownB = itemB.isGuiShown()

  595. 

  596.         itemA.setPluginId(pluginIdA)

  597.         itemA.recreateWidget2(compactB, guiShownB)

  598. 

  599.         itemB.setPluginId(pluginIdB)

  600.         itemB.recreateWidget2(compactA, guiShownA)

  601. 

  602.         self.slot_canvasRefresh()

  603. 

  604.     def setLoadRDFsNeeded(self):

  605.         self.fLadspaRdfNeedsUpdate = True

  606. 

  607.     def setProperWindowTitle(self):

  608.         title = self.fClientName

  609. 

  610.         if self.fProjectFilename and not self.host.nsmOK:

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

  612.         if self.fSessionManagerName:

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

  614. 

  615.         self.setWindowTitle(title)

  616. 

  617.     # --------------------------------------------------------------------------------------------------------

  618.     # Files

  619. 

  620.     def makeExtraFilename(self):

  621.         return self.fProjectFilename.rsplit(".",1)[0]+".json"

  622. 

  623.     def loadProjectNow(self):

  624.         if not self.fProjectFilename:

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

  626.         if self.host.nsmOK and not os.path.exists(self.fProjectFilename):

  627.             return

  628. 

  629.         self.projectLoadingStarted()

  630.         self.fIsProjectLoading = True

  631.         self.host.load_project(self.fProjectFilename)

  632. 

  633.         # Project finished loading is sent by engine

  634. 

  635.     def loadProjectLater(self, filename):

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

  637.         self.setProperWindowTitle()

  638.         QTimer.singleShot(1, self.slot_loadProjectNow)

  639. 

  640.     def saveProjectNow(self):

  641.         if not self.fProjectFilename:

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

  643. 

  644.         self.host.save_project(self.fProjectFilename)

  645. 

  646.         with open(self.makeExtraFilename(), 'w') as fh:

  647.             json.dump({

  648.                 'canvas': patchcanvas.saveGroupPositions(),

  649.             }, fh)

  650. 

  651.     def projectLoadingStarted(self):

  652.         self.ui.rack.setEnabled(False)

  653.         self.ui.graphicsView.setEnabled(False)

  654. 

  655.     def projectLoadingFinished(self):

  656.         self.ui.rack.setEnabled(True)

  657.         self.ui.graphicsView.setEnabled(True)

  658.         QTimer.singleShot(1000, self.slot_canvasRefresh)

  659. 

  660.         extrafile = self.makeExtraFilename()

  661.         if not os.path.exists(extrafile):

  662.             return

  663. 

  664.         try:

  665.             with open(extrafile, "r") as fh:

  666.                 canvasdata = json.load(fh)['canvas']

  667.         except:

  668.             return

  669. 

  670.         patchcanvas.restoreGroupPositions(canvasdata)

  671. 

  672.     # --------------------------------------------------------------------------------------------------------

  673.     # Files (menu actions)

  674. 

  675.     @pyqtSlot()

  676.     def slot_fileNew(self):

  677.         if self.fPluginCount > 0 and QMessageBox.question(self, self.tr("New File"),

  678.                                                                 self.tr("Plugins that are currently loaded will be removed. Are you sure?"),

  679.                                                                 QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  680.             return

  681. 

  682.         self.pluginRemoveAll()

  683.         self.fProjectFilename = ""

  684.         self.setProperWindowTitle()

  685. 

  686.     @pyqtSlot()

  687.     def slot_fileOpen(self):

  688.         fileFilter = self.tr("Carla Project File (*.carxp);;Carla Preset File (*.carxs)")

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

  690. 

  691.         if config_UseQt5:

  692.             filename = filename[0]

  693.         if not filename:

  694.             return

  695. 

  696.         newFile = True

  697. 

  698.         if self.fPluginCount > 0:

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

  700.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  702. 

  703.         if newFile:

  704.             self.pluginRemoveAll()

  705.             self.fProjectFilename = filename

  706.             self.setProperWindowTitle()

  707.             self.loadProjectNow()

  708.         else:

  709.             filenameOld = self.fProjectFilename

  710.             self.fProjectFilename = filename

  711.             self.loadProjectNow()

  712.             self.fProjectFilename = filenameOld

  713. 

  714.     @pyqtSlot()

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

  716.         if self.fProjectFilename and not saveAs:

  717.             return self.saveProjectNow()

  718. 

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

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

  721. 

  722.         if config_UseQt5:

  723.             filename = filename[0]

  724.         if not filename:

  725.             return

  726. 

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

  728.             filename += ".carxp"

  729. 

  730.         if self.fProjectFilename != filename:

  731.             self.fProjectFilename = filename

  732.             self.setProperWindowTitle()

  733. 

  734.         self.saveProjectNow()

  735. 

  736.     @pyqtSlot()

  737.     def slot_fileSaveAs(self):

  738.         self.slot_fileSave(True)

  739. 

  740.     @pyqtSlot()

  741.     def slot_loadProjectNow(self):

  742.         self.loadProjectNow()

  743. 

  744.     # --------------------------------------------------------------------------------------------------------

  745.     # Engine (menu actions)

  746. 

  747.     @pyqtSlot()

  748.     def slot_engineStart(self):

  749.         audioDriver = setEngineSettings(self.host)

  750.         firstInit   = self.fFirstEngineInit

  751. 

  752.         self.fFirstEngineInit = False

  753.         self.ui.text_logs.appendPlainText("======= Starting engine =======")

  754. 

  755.         if self.host.engine_init(audioDriver, self.fClientName):

  756.             self.ui.text_logs.appendPlainText("======= Engine started ========")

  757.             return

  758. 

  759.         elif firstInit:

  760.             self.ui.text_logs.appendPlainText("Failed to start engine on first try, ignored")

  761.             return

  762. 

  763.         audioError = self.host.get_last_error()

  764. 

  765.         if audioError:

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

  767.         else:

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

  769. 

  770.     @pyqtSlot()

  771.     def slot_engineStop(self, forced = False):

  772.         self.ui.text_logs.appendPlainText("======= Stopping engine =======")

  773. 

  774.         if self.fPluginCount == 0:

  775.             self.engineStopFinal()

  776.             return True

  777. 

  778.         if not forced:

  779.             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"

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

  781.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  782.             if ask != QMessageBox.Yes:

  783.                 return False

  784. 

  785.         return self.slot_engineStopTryAgain()

  786. 

  787.     @pyqtSlot()

  788.     def slot_engineStopTryAgain(self):

  789.         if self.host.is_engine_running() and not self.host.set_engine_about_to_close():

  790.             QTimer.singleShot(0, self.slot_engineStopTryAgain)

  791.             return False

  792. 

  793.         self.engineStopFinal()

  794.         return True

  795. 

  796.     def engineStopFinal(self):

  797.         self.killTimers()

  798.         self.removeAllPlugins()

  799. 

  800.         if self.host.is_engine_running():

  801.             self.host.remove_all_plugins()

  802. 

  803.             if self.host.engine_close():

  804.                 self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  805.             else:

  806.                 self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  807.                 self.ui.text_logs.appendPlainText(self.host.get_last_error())

  808. 

  809.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  810.             self.close()

  811.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  812.             self.slot_engineStart()

  813.             self.loadProjectNow()

  814.             self.host.nsm_ready(2) # open

  815. 

  816.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  817. 

  818.     # --------------------------------------------------------------------------------------------------------

  819.     # Engine (host callbacks)

  820. 

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

  822.     def slot_handleEngineStartedCallback(self, processMode, transportMode, sampleRate, driverName):

  823.         self.fSampleRate = sampleRate

  824. 

  825.         self.ui.menu_PluginMacros.setEnabled(True)

  826.         self.ui.menu_Canvas.setEnabled(True)

  827.         self.ui.w_transport.setEnabled(True)

  828. 

  829.         self.ui.act_canvas_show_internal.blockSignals(True)

  830.         self.ui.act_canvas_show_external.blockSignals(True)

  831. 

  832.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not (self.host.isControl or self.host.isPlugin):

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

  834.             self.ui.act_canvas_show_internal.setVisible(True)

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

  836.             self.ui.act_canvas_show_external.setVisible(True)

  837.         else:

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

  839.             self.ui.act_canvas_show_internal.setVisible(False)

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

  841.             self.ui.act_canvas_show_external.setVisible(False)

  842. 

  843.         self.ui.act_canvas_show_internal.blockSignals(False)

  844.         self.ui.act_canvas_show_external.blockSignals(False)

  845. 

  846.         if not (self.host.isControl or self.host.isPlugin):

  847.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  848.             self.ui.act_file_save.setEnabled(canSave)

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

  850.             self.ui.act_engine_stop.setEnabled(True)

  851.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  852. 

  853.         if self.host.isPlugin or not self.fSessionManagerName:

  854.             self.ui.act_file_open.setEnabled(True)

  855.             self.ui.act_file_save_as.setEnabled(True)

  856. 

  857.         self.refreshTransport(True)

  858. 

  859.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  860.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK")

  861. 

  862.         self.startTimers()

  863. 

  864.     @pyqtSlot()

  865.     def slot_handleEngineStoppedCallback(self):

  866.         patchcanvas.clear()

  867.         self.killTimers()

  868. 

  869.         # just in case

  870.         self.removeAllPlugins()

  871. 

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

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

  874.         self.ui.w_transport.setEnabled(False)

  875. 

  876.         if not (self.host.isControl or self.host.isPlugin):

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

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

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

  880. 

  881.         if self.host.isPlugin or not self.fSessionManagerName:

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

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

  884. 

  885.     @pyqtSlot(float)

  886.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  887.         self.fSampleRate = newSampleRate

  888.         self.refreshTransport(True)

  889. 

  890.     @pyqtSlot()

  891.     def slot_handleProjectLoadFinishedCallback(self):

  892.         self.fIsProjectLoading = False

  893.         self.projectLoadingFinished()

  894. 

  895.     # --------------------------------------------------------------------------------------------------------

  896.     # Plugins

  897. 

  898.     def removeAllPlugins(self):

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

  900.         patchcanvas.handleAllPluginsRemoved()

  901. 

  902.         while self.ui.listWidget.takeItem(0):

  903.             pass

  904. 

  905.         self.clearSideStuff()

  906. 

  907.         for pitem in self.fPluginList:

  908.             if pitem is None:

  909.                 continue

  910. 

  911.             pitem.close()

  912.             del pitem

  913. 

  914.         self.fPluginCount = 0

  915.         self.fPluginList  = []

  916. 

  917.     # --------------------------------------------------------------------------------------------------------

  918.     # Plugins (menu actions)

  919. 

  920.     def showAddPluginDialog(self):

  921.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  922. 

  923.         if not dialog.exec_():

  924.             return

  925. 

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

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

  928.             return

  929. 

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

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

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

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

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

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

  936. 

  937.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  938. 

  939.     def showAddJackAppDialog(self):

  940.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  941. 

  942.         if not dialog.exec_():

  943.             return

  944. 

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

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

  947.             return

  948. 

  949.         return dialog.getCommandAndFlags()

  950. 

  951.     @pyqtSlot()

  952.     def showPluginActionsMenu(self):

  953.         menu = QMenu(self)

  954. 

  955.         if config_UseQt5:

  956.             menu.addSection("Plugins")

  957.         else:

  958.             # fake section

  959.             act  = menu.addAction("  Plugins")

  960.             font = act.font()

  961.             font.setBold(True)

  962.             act.setFont(font)

  963.             act.setEnabled(False)

  964.             menu.addSeparator()

  965. 

  966.         menu.addAction(self.ui.act_plugin_add)

  967.         menu.addAction(self.ui.act_plugin_remove_all)

  968. 

  969.         if config_UseQt5:

  970.             menu.addSection("All plugins (macros)")

  971.         else:

  972.             # fake space

  973.             act  = menu.addAction(" ")

  974.             font = act.font()

  975.             font.setBold(True)

  976.             font.setPointSize(font.pointSize()/2)

  977.             act.setEnabled(False)

  978. 

  979.             # fake section

  980.             act  = menu.addAction("  All plugins (macros)")

  981.             font = act.font()

  982.             font.setBold(True)

  983.             act.setFont(font)

  984.             act.setEnabled(False)

  985.             menu.addSeparator()

  986. 

  987.         menu.addAction(self.ui.act_plugins_enable)

  988.         menu.addAction(self.ui.act_plugins_disable)

  989.         menu.addSeparator()

  990.         menu.addAction(self.ui.act_plugins_volume100)

  991.         menu.addAction(self.ui.act_plugins_mute)

  992.         menu.addSeparator()

  993.         menu.addAction(self.ui.act_plugins_wet100)

  994.         menu.addAction(self.ui.act_plugins_bypass)

  995.         menu.addSeparator()

  996.         menu.addAction(self.ui.act_plugins_center)

  997.         menu.addSeparator()

  998.         menu.addAction(self.ui.act_plugins_compact)

  999.         menu.addAction(self.ui.act_plugins_expand)

  1000. 

  1001.         menu.exec_(QCursor.pos())

  1002. 

  1003.     @pyqtSlot()

  1004.     def slot_pluginAdd(self):

  1005.         data = self.showAddPluginDialog()

  1006. 

  1007.         if data is None:

  1008.             return

  1009. 

  1010.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1011. 

  1012.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1013.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1014. 

  1015.     @pyqtSlot()

  1016.     def slot_confirmRemoveAll(self):

  1017.         if self.fPluginCount == 0:

  1018.             return

  1019. 

  1020.         if QMessageBox.question(self, self.tr("Remove All"),

  1021.                                       self.tr("Are you sure you want to remove all plugins?"),

  1022.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1023.             return

  1024. 

  1025.         self.pluginRemoveAll()

  1026. 

  1027.     def pluginRemoveAll(self):

  1028.         if self.fPluginCount == 0:

  1029.             return

  1030. 

  1031.         # FIXME - this is not working

  1032.         # removing a plugin causes flicker, the rack-list becomes empty for some time

  1033.         # this breaks the remove-all animation, so don't bother using it

  1034.         if False and not self.host.isPlugin:

  1035.             self.projectLoadingStarted()

  1036. 

  1037.             app = QApplication.instance()

  1038.             app.processEvents()

  1039. 

  1040.             for i in reversed(range(self.fPluginCount)):

  1041.                 self.host.remove_plugin(i)

  1042.                 app.processEvents()

  1043. 

  1044.             self.projectLoadingFinished()

  1045. 

  1046.         self.fCurrentlyRemovingAllPlugins = True

  1047.         ok = self.host.remove_all_plugins()

  1048.         self.fCurrentlyRemovingAllPlugins = False

  1049. 

  1050.         if ok:

  1051.             self.removeAllPlugins()

  1052.         else:

  1053.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1054.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1055. 

  1056.         self.fCurrentlyRemovingAllPlugins = False

  1057. 

  1058.     @pyqtSlot()

  1059.     def slot_jackAppAdd(self):

  1060.         data = self.showAddJackAppDialog()

  1061. 

  1062.         if data is None:

  1063.             return

  1064. 

  1065.         filename, name, label = data

  1066. 

  1067.         if not filename:

  1068.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1069.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1070.             return

  1071. 

  1072.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1073.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

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

  1075. 

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

  1077.     # Plugins (macros)

  1078. 

  1079.     @pyqtSlot()

  1080.     def slot_pluginsEnable(self):

  1081.         if not self.host.is_engine_running():

  1082.             return

  1083. 

  1084.         for pitem in self.fPluginList:

  1085.             if pitem is None:

  1086.                 break

  1087. 

  1088.             pitem.getWidget().setActive(True, True, True)

  1089. 

  1090.     @pyqtSlot()

  1091.     def slot_pluginsDisable(self):

  1092.         if not self.host.is_engine_running():

  1093.             return

  1094. 

  1095.         for pitem in self.fPluginList:

  1096.             if pitem is None:

  1097.                 break

  1098. 

  1099.             pitem.getWidget().setActive(False, True, True)

  1100. 

  1101.     @pyqtSlot()

  1102.     def slot_pluginsVolume100(self):

  1103.         if not self.host.is_engine_running():

  1104.             return

  1105. 

  1106.         for pitem in self.fPluginList:

  1107.             if pitem is None:

  1108.                 break

  1109. 

  1110.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1111. 

  1112.     @pyqtSlot()

  1113.     def slot_pluginsMute(self):

  1114.         if not self.host.is_engine_running():

  1115.             return

  1116. 

  1117.         for pitem in self.fPluginList:

  1118.             if pitem is None:

  1119.                 break

  1120. 

  1121.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1122. 

  1123.     @pyqtSlot()

  1124.     def slot_pluginsWet100(self):

  1125.         if not self.host.is_engine_running():

  1126.             return

  1127. 

  1128.         for pitem in self.fPluginList:

  1129.             if pitem is None:

  1130.                 break

  1131. 

  1132.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1133. 

  1134.     @pyqtSlot()

  1135.     def slot_pluginsBypass(self):

  1136.         if not self.host.is_engine_running():

  1137.             return

  1138. 

  1139.         for pitem in self.fPluginList:

  1140.             if pitem is None:

  1141.                 break

  1142. 

  1143.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1144. 

  1145.     @pyqtSlot()

  1146.     def slot_pluginsCenter(self):

  1147.         if not self.host.is_engine_running():

  1148.             return

  1149. 

  1150.         for pitem in self.fPluginList:

  1151.             if pitem is None:

  1152.                 break

  1153. 

  1154.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1155.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1156.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1157. 

  1158.     @pyqtSlot()

  1159.     def slot_pluginsCompact(self):

  1160.         for pitem in self.fPluginList:

  1161.             if pitem is None:

  1162.                 break

  1163.             pitem.compact()

  1164. 

  1165.     @pyqtSlot()

  1166.     def slot_pluginsExpand(self):

  1167.         for pitem in self.fPluginList:

  1168.             if pitem is None:

  1169.                 break

  1170.             pitem.expand()

  1171. 

  1172.     # --------------------------------------------------------------------------------------------------------

  1173.     # Plugins (host callbacks)

  1174. 

  1175.     @pyqtSlot(int, str)

  1176.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1177.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1178. 

  1179.         self.fPluginList.append(pitem)

  1180.         self.fPluginCount += 1

  1181. 

  1182.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1183. 

  1184.     @pyqtSlot(int)

  1185.     def slot_handlePluginRemovedCallback(self, pluginId):

  1186.         patchcanvas.handlePluginRemoved(pluginId)

  1187. 

  1188.         if pluginId in self.fSelectedPlugins:

  1189.             self.clearSideStuff()

  1190. 

  1191.         pitem = self.getPluginItem(pluginId)

  1192. 

  1193.         self.fPluginCount -= 1

  1194.         self.fPluginList.pop(pluginId)

  1195.         self.ui.listWidget.takeItem(pluginId)

  1196. 

  1197.         if pitem is not None:

  1198.             pitem.close()

  1199.             del pitem

  1200. 

  1201.         # push all plugins 1 slot back

  1202.         for i in range(pluginId, self.fPluginCount):

  1203.             pitem = self.fPluginList[i]

  1204.             pitem.setPluginId(i)

  1205. 

  1206.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1207. 

  1208.     # --------------------------------------------------------------------------------------------------------

  1209.     # Canvas

  1210. 

  1211.     def clearSideStuff(self):

  1212.         self.scene.clearSelection()

  1213. 

  1214.         self.fSelectedPlugins = []

  1215. 

  1216.         self.ui.keyboard.allNotesOff(False)

  1217.         self.ui.scrollArea.setEnabled(False)

  1218. 

  1219.         self.fPeaksCleared = True

  1220.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1221.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1222.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1223.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1224. 

  1225.     def setupCanvas(self):

  1226.         pOptions = patchcanvas.options_t()

  1227.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1228.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1229.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1230.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1231.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1232. 

  1233.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1234.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1235.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1236.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1237.         else:

  1238.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1239. 

  1240.         pFeatures = patchcanvas.features_t()

  1241.         pFeatures.group_info   = False

  1242.         pFeatures.group_rename = False

  1243.         pFeatures.port_info    = False

  1244.         pFeatures.port_rename  = False

  1245.         pFeatures.handle_group_pos = True

  1246. 

  1247.         patchcanvas.setOptions(pOptions)

  1248.         patchcanvas.setFeatures(pFeatures)

  1249.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1250. 

  1251.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1252. 

  1253.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1254.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1255.             self.fCanvasHeight = int(tryCanvasSize[1])

  1256.         else:

  1257.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1258.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1259. 

  1260.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1261.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1262.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1263. 

  1264.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1265.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1266. 

  1267.     def updateCanvasInitialPos(self):

  1268.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1269.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1270.         patchcanvas.setInitialPos(x, y)

  1271. 

  1272.     def updateMiniCanvasLater(self):

  1273.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1274. 

  1275.     # --------------------------------------------------------------------------------------------------------

  1276.     # Canvas (menu actions)

  1277. 

  1278.     @pyqtSlot()

  1279.     def slot_canvasShowInternal(self):

  1280.         self.fExternalPatchbay = False

  1281.         self.ui.act_canvas_show_internal.blockSignals(True)

  1282.         self.ui.act_canvas_show_external.blockSignals(True)

  1283.         self.ui.act_canvas_show_internal.setChecked(True)

  1284.         self.ui.act_canvas_show_external.setChecked(False)

  1285.         self.ui.act_canvas_show_internal.blockSignals(False)

  1286.         self.ui.act_canvas_show_external.blockSignals(False)

  1287.         self.slot_canvasRefresh()

  1288. 

  1289.     @pyqtSlot()

  1290.     def slot_canvasShowExternal(self):

  1291.         self.fExternalPatchbay = True

  1292.         self.ui.act_canvas_show_internal.blockSignals(True)

  1293.         self.ui.act_canvas_show_external.blockSignals(True)

  1294.         self.ui.act_canvas_show_internal.setChecked(False)

  1295.         self.ui.act_canvas_show_external.setChecked(True)

  1296.         self.ui.act_canvas_show_internal.blockSignals(False)

  1297.         self.ui.act_canvas_show_external.blockSignals(False)

  1298.         self.slot_canvasRefresh()

  1299. 

  1300.     @pyqtSlot()

  1301.     def slot_canvasArrange(self):

  1302.         patchcanvas.arrange()

  1303. 

  1304.     @pyqtSlot()

  1305.     def slot_canvasRefresh(self):

  1306.         patchcanvas.clear()

  1307. 

  1308.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1309.             return

  1310. 

  1311.         if self.host.is_engine_running():

  1312.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1313. 

  1314.         self.updateMiniCanvasLater()

  1315. 

  1316.     @pyqtSlot()

  1317.     def slot_canvasZoomFit(self):

  1318.         self.scene.zoom_fit()

  1319. 

  1320.     @pyqtSlot()

  1321.     def slot_canvasZoomIn(self):

  1322.         self.scene.zoom_in()

  1323. 

  1324.     @pyqtSlot()

  1325.     def slot_canvasZoomOut(self):

  1326.         self.scene.zoom_out()

  1327. 

  1328.     @pyqtSlot()

  1329.     def slot_canvasZoomReset(self):

  1330.         self.scene.zoom_reset()

  1331. 

  1332.     @pyqtSlot()

  1333.     def slot_canvasSaveImage(self):

  1334.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1335. 

  1336.         if config_UseQt5:

  1337.             newPath = newPath[0]

  1338.         if not newPath:

  1339.             return

  1340. 

  1341.         self.scene.clearSelection()

  1342. 

  1343.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1344.             imgFormat = "JPG"

  1345.         elif newPath.lower().endswith((".png",)):

  1346.             imgFormat = "PNG"

  1347.         else:

  1348.             # File-dialog may not auto-add the extension

  1349.             imgFormat = "PNG"

  1350.             newPath  += ".png"

  1351. 

  1352.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1353.         painter = QPainter(self.fExportImage)

  1354.         painter.save()

  1355.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1356.         painter.setRenderHint(QPainter.TextAntialiasing)

  1357.         self.scene.render(painter)

  1358.         self.fExportImage.save(newPath, imgFormat, 100)

  1359.         painter.restore()

  1360. 

  1361.     # --------------------------------------------------------------------------------------------------------

  1362.     # Canvas (canvas callbacks)

  1363. 

  1364.     @pyqtSlot(int, int, QPointF)

  1365.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1366.         self.updateMiniCanvasLater()

  1367. 

  1368.     @pyqtSlot(float)

  1369.     def slot_canvasScaleChanged(self, scale):

  1370.         self.ui.miniCanvasPreview.setViewScale(scale)

  1371. 

  1372.     @pyqtSlot(list)

  1373.     def slot_canvasPluginSelected(self, pluginList):

  1374.         self.ui.keyboard.allNotesOff(False)

  1375.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1376.         self.fSelectedPlugins = pluginList

  1377. 

  1378.     # --------------------------------------------------------------------------------------------------------

  1379.     # Canvas (host callbacks)

  1380. 

  1381.     @pyqtSlot(int, int, int, str)

  1382.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1383.         pcSplit = patchcanvas.SPLIT_UNDEF

  1384.         pcIcon  = patchcanvas.ICON_APPLICATION

  1385. 

  1386.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1387.             pcIcon = patchcanvas.ICON_PLUGIN

  1388.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1389.             pcIcon = patchcanvas.ICON_HARDWARE

  1390.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1391.             pass

  1392.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1393.             pcIcon = patchcanvas.ICON_DISTRHO

  1394.         elif clientIcon == PATCHBAY_ICON_FILE:

  1395.             pcIcon = patchcanvas.ICON_FILE

  1396. 

  1397.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1398. 

  1399.         self.updateMiniCanvasLater()

  1400. 

  1401.         if pluginId < 0:

  1402.             return

  1403.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1404.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1405.             return

  1406. 

  1407.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1408.             hasCustomUI = False

  1409.         else:

  1410.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1411. 

  1412.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1413. 

  1414.     @pyqtSlot(int)

  1415.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1416.         patchcanvas.removeGroup(clientId)

  1417.         self.updateMiniCanvasLater()

  1418. 

  1419.     @pyqtSlot(int, str)

  1420.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1421.         patchcanvas.renameGroup(clientId, newClientName)

  1422.         self.updateMiniCanvasLater()

  1423. 

  1424.     @pyqtSlot(int, int, int)

  1425.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1426.         pcIcon = patchcanvas.ICON_APPLICATION

  1427. 

  1428.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1429.             pcIcon = patchcanvas.ICON_PLUGIN

  1430.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1431.             pcIcon = patchcanvas.ICON_HARDWARE

  1432.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1433.             pass

  1434.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1435.             pcIcon = patchcanvas.ICON_DISTRHO

  1436.         elif clientIcon == PATCHBAY_ICON_FILE:

  1437.             pcIcon = patchcanvas.ICON_FILE

  1438. 

  1439.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1440.         self.updateMiniCanvasLater()

  1441. 

  1442.         if pluginId < 0:

  1443.             return

  1444.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1445.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1446.             return

  1447. 

  1448.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1449.             hasCustomUI = False

  1450.         else:

  1451.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1452. 

  1453.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1454. 

  1455.     @pyqtSlot(int, int, int, str)

  1456.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1457.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1458.             portMode = patchcanvas.PORT_MODE_INPUT

  1459.         else:

  1460.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1461. 

  1462.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1463.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1464.             isAlternate = False

  1465.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1466.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1467.             isAlternate = True

  1468.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1469.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1470.             isAlternate = False

  1471.         else:

  1472.             portType    = patchcanvas.PORT_TYPE_NULL

  1473.             isAlternate = False

  1474. 

  1475.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1476.         self.updateMiniCanvasLater()

  1477. 

  1478.     @pyqtSlot(int, int)

  1479.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1480.         patchcanvas.removePort(groupId, portId)

  1481.         self.updateMiniCanvasLater()

  1482. 

  1483.     @pyqtSlot(int, int, str)

  1484.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1485.         patchcanvas.renamePort(groupId, portId, newPortName)

  1486.         self.updateMiniCanvasLater()

  1487. 

  1488.     @pyqtSlot(int, int, int, int, int)

  1489.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1490.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1491.         self.updateMiniCanvasLater()

  1492. 

  1493.     @pyqtSlot(int, int, int)

  1494.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1495.         patchcanvas.disconnectPorts(connectionId)

  1496.         self.updateMiniCanvasLater()

  1497. 

  1498.     # --------------------------------------------------------------------------------------------------------

  1499.     # Settings

  1500. 

  1501.     def saveSettings(self):

  1502.         settings = QSettings()

  1503. 

  1504.         settings.setValue("Geometry", self.saveGeometry())

  1505. 

  1506.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1507. 

  1508.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1509. 

  1510.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1511. 

  1512.         diskFolders = []

  1513. 

  1514.         for i in range(self.ui.cb_disk.count()):

  1515.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1516. 

  1517.         settings.setValue("DiskFolders", diskFolders)

  1518. 

  1519.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1520.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1521.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1522.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1523. 

  1524.     def loadSettings(self, firstTime):

  1525.         settings = QSettings()

  1526. 

  1527.         if firstTime:

  1528.             self.restoreGeometry(settings.value("Geometry", b""))

  1529. 

  1530.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1531.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1532.             self.ui.toolBar.setEnabled(showToolbar)

  1533.             self.ui.toolBar.setVisible(showToolbar)

  1534. 

  1535.             #if settings.contains("SplitterState"):

  1536.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1537.             #else:

  1538.                 #self.ui.splitter.setSizes([210, 99999])

  1539. 

  1540.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1541.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1542.             self.ui.dockWidget.setEnabled(showSidePanel)

  1543.             self.ui.dockWidget.setVisible(showSidePanel)

  1544. 

  1545.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1546. 

  1547.             self.ui.cb_disk.setItemData(0, HOME)

  1548. 

  1549.             for i in range(len(diskFolders)):

  1550.                 if i == 0: continue

  1551.                 folder = diskFolders[i]

  1552.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1553. 

  1554.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1555.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1556. 

  1557.             showMeters = settings.value("ShowMeters", False, type=bool)

  1558.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1559.             self.ui.peak_in.setVisible(showMeters)

  1560.             self.ui.peak_out.setVisible(showMeters)

  1561. 

  1562.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1563.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1564.             self.ui.scrollArea.setVisible(showKeyboard)

  1565. 

  1566.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1567. 

  1568.         # TODO - complete this

  1569. 

  1570.         self.fSavedSettings = {

  1571.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1572.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1573.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1574.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1575.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1576.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1577.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1578.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1579.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1580.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1581.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1582.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1583.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1584.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1585.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1586.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1587.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1588.         }

  1589. 

  1590.         settings = QSettings("falkTX", "Carla2")

  1591. 

  1592.         if self.host.experimental and not self.host.isControl:

  1593.             self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1594.                                                            CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1595.         else:

  1596.             self.ui.act_add_jack.setVisible(False)

  1597. 

  1598.         if not (self.host.isControl or self.host.isPlugin):

  1599.             if self.ui.cb_transport_jack.isChecked():

  1600.                 transportMode = ENGINE_TRANSPORT_MODE_JACK

  1601.             else:

  1602.                 transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  1603.             transportExtra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1604. 

  1605.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1606.             self.host.transportMode = transportMode

  1607.             self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, transportMode, transportExtra)

  1608. 

  1609.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1610. 

  1611.         setEngineSettings(self.host)

  1612.         self.restartTimersIfNeeded()

  1613. 

  1614.     # --------------------------------------------------------------------------------------------------------

  1615.     # Settings (helpers)

  1616. 

  1617.     def enableTransport(self, enabled):

  1618.         self.ui.group_transport_controls.setEnabled(enabled)

  1619.         self.ui.group_transport_settings.setEnabled(enabled)

  1620. 

  1621.     @pyqtSlot()

  1622.     def slot_restoreCanvasScrollbarValues(self):

  1623.         settings = QSettings()

  1624.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1625.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1626. 

  1627.     # --------------------------------------------------------------------------------------------------------

  1628.     # Settings (menu actions)

  1629. 

  1630.     @pyqtSlot(bool)

  1631.     def slot_showSidePanel(self, yesNo):

  1632.         self.ui.dockWidget.setEnabled(yesNo)

  1633.         self.ui.dockWidget.setVisible(yesNo)

  1634. 

  1635.     @pyqtSlot(bool)

  1636.     def slot_showToolbar(self, yesNo):

  1637.         self.ui.toolBar.setEnabled(yesNo)

  1638.         self.ui.toolBar.setVisible(yesNo)

  1639. 

  1640.     @pyqtSlot(bool)

  1641.     def slot_showCanvasMeters(self, yesNo):

  1642.         self.ui.peak_in.setVisible(yesNo)

  1643.         self.ui.peak_out.setVisible(yesNo)

  1644.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1645. 

  1646.     @pyqtSlot(bool)

  1647.     def slot_showCanvasKeyboard(self, yesNo):

  1648.         self.ui.scrollArea.setVisible(yesNo)

  1649.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1650. 

  1651.     @pyqtSlot()

  1652.     def slot_configureCarla(self):

  1653.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1654.         if not dialog.exec_():

  1655.             return

  1656. 

  1657.         self.loadSettings(False)

  1658. 

  1659.         patchcanvas.clear()

  1660. 

  1661.         self.setupCanvas()

  1662.         self.slot_miniCanvasCheckAll()

  1663. 

  1664.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1665.             pass

  1666.         elif self.host.is_engine_running():

  1667.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1668. 

  1669.         for pitem in self.fPluginList:

  1670.             if pitem is None:

  1671.                 break

  1672.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1673.             pitem.recreateWidget()

  1674. 

  1675.     # --------------------------------------------------------------------------------------------------------

  1676.     # About (menu actions)

  1677. 

  1678.     @pyqtSlot()

  1679.     def slot_aboutCarla(self):

  1680.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1681. 

  1682.     @pyqtSlot()

  1683.     def slot_aboutQt(self):

  1684.         QApplication.instance().aboutQt()

  1685. 

  1686.     # --------------------------------------------------------------------------------------------------------

  1687.     # Disk (menu actions)

  1688. 

  1689.     @pyqtSlot(int)

  1690.     def slot_diskFolderChanged(self, index):

  1691.         if index < 0:

  1692.             return

  1693.         elif index == 0:

  1694.             filename = HOME

  1695.             self.ui.b_disk_remove.setEnabled(False)

  1696.         else:

  1697.             filename = self.ui.cb_disk.itemData(index)

  1698.             self.ui.b_disk_remove.setEnabled(True)

  1699. 

  1700.         self.fDirModel.setRootPath(filename)

  1701.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1702. 

  1703.     @pyqtSlot()

  1704.     def slot_diskFolderAdd(self):

  1705.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1706. 

  1707.         if newPath:

  1708.             if newPath[-1] == os.sep:

  1709.                 newPath = newPath[:-1]

  1710.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1711.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1712.             self.ui.b_disk_remove.setEnabled(True)

  1713. 

  1714.     @pyqtSlot()

  1715.     def slot_diskFolderRemove(self):

  1716.         index = self.ui.cb_disk.currentIndex()

  1717. 

  1718.         if index <= 0:

  1719.             return

  1720. 

  1721.         self.ui.cb_disk.removeItem(index)

  1722. 

  1723.         if self.ui.cb_disk.currentIndex() == 0:

  1724.             self.ui.b_disk_remove.setEnabled(False)

  1725. 

  1726.     @pyqtSlot(QModelIndex)

  1727.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1728.         filename = self.fDirModel.filePath(modelIndex)

  1729. 

  1730.         if not self.ui.listWidget.isDragUrlValid(filename):

  1731.             return

  1732. 

  1733.         if not self.host.load_file(filename):

  1734.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1735.                              self.tr("Failed to load file"),

  1736.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1737. 

  1738.     # --------------------------------------------------------------------------------------------------------

  1739.     # Transport

  1740. 

  1741.     def refreshTransport(self, forced = False):

  1742.         if not self.isVisible():

  1743.             return

  1744.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1745.             return

  1746. 

  1747.         timeInfo = self.host.get_transport_info()

  1748.         playing  = timeInfo['playing']

  1749.         frame    = timeInfo['frame']

  1750.         bpm      = timeInfo['bpm']

  1751. 

  1752.         if playing != self.fLastTransportState or forced:

  1753.             if playing:

  1754.                 icon = getIcon("media-playback-pause")

  1755.                 self.ui.b_transport_play.setChecked(True)

  1756.                 self.ui.b_transport_play.setIcon(icon)

  1757.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1758.             else:

  1759.                 icon = getIcon("media-playback-start")

  1760.                 self.ui.b_transport_play.setChecked(False)

  1761.                 self.ui.b_transport_play.setIcon(icon)

  1762.                 #self.ui.b_play.setText(self.tr("&Play"))

  1763. 

  1764.             self.fLastTransportState = playing

  1765. 

  1766.         if frame != self.fLastTransportFrame or forced:

  1767.             self.fLastTransportFrame = frame

  1768. 

  1769.             time = frame / self.fSampleRate

  1770.             secs =  time % 60

  1771.             mins = (time / 60) % 60

  1772.             hrs  = (time / 3600) % 60

  1773.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1774. 

  1775.             frame1 =  frame % 1000

  1776.             frame2 = (frame / 1000) % 1000

  1777.             frame3 = (frame / 1000000) % 1000

  1778.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1779. 

  1780.             bar  = timeInfo['bar']

  1781.             beat = timeInfo['beat']

  1782.             tick = timeInfo['tick']

  1783.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1784. 

  1785.         if bpm != self.fLastTransportBPM or forced:

  1786.             self.fLastTransportBPM = bpm

  1787. 

  1788.             if bpm > 0.0:

  1789.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1790.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1791.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1792.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1793.             else:

  1794.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1795. 

  1796.     # --------------------------------------------------------------------------------------------------------

  1797.     # Transport (menu actions)

  1798. 

  1799.     @pyqtSlot(bool)

  1800.     def slot_transportPlayPause(self, toggled):

  1801.         if self.host.isPlugin or not self.host.is_engine_running():

  1802.             return

  1803. 

  1804.         if toggled:

  1805.             self.host.transport_play()

  1806.         else:

  1807.             self.host.transport_pause()

  1808. 

  1809.         self.refreshTransport()

  1810. 

  1811.     @pyqtSlot()

  1812.     def slot_transportStop(self):

  1813.         if self.host.isPlugin or not self.host.is_engine_running():

  1814.             return

  1815. 

  1816.         self.host.transport_pause()

  1817.         self.host.transport_relocate(0)

  1818. 

  1819.         self.refreshTransport()

  1820. 

  1821.     @pyqtSlot()

  1822.     def slot_transportBackwards(self):

  1823.         if self.host.isPlugin or not self.host.is_engine_running():

  1824.             return

  1825. 

  1826.         newFrame = self.host.get_current_transport_frame() - 100000

  1827. 

  1828.         if newFrame < 0:

  1829.             newFrame = 0

  1830. 

  1831.         self.host.transport_relocate(newFrame)

  1832. 

  1833.     @pyqtSlot(float)

  1834.     def slot_transportBpmChanged(self, newValue):

  1835.         self.host.transport_bpm(newValue)

  1836. 

  1837.     @pyqtSlot()

  1838.     def slot_transportForwards(self):

  1839.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1840.             return

  1841. 

  1842.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1843.         self.host.transport_relocate(newFrame)

  1844. 

  1845.     @pyqtSlot(bool)

  1846.     def slot_transportJackEnabled(self, clicked):

  1847.         if not self.host.is_engine_running():

  1848.             return

  1849.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1850.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1851.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1852. 

  1853.     @pyqtSlot(bool)

  1854.     def slot_transportLinkEnabled(self, clicked):

  1855.         if not self.host.is_engine_running():

  1856.             return

  1857.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1858.         extra = ":link:" if clicked else ""

  1859.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1860. 

  1861.     # --------------------------------------------------------------------------------------------------------

  1862.     # Canvas scrollbars

  1863. 

  1864.     @pyqtSlot(int)

  1865.     def slot_horizontalScrollBarChanged(self, value):

  1866.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1867.         if maximum == 0:

  1868.             xp = 0

  1869.         else:

  1870.             xp = float(value) / maximum

  1871.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1872.         self.updateCanvasInitialPos()

  1873. 

  1874.     @pyqtSlot(int)

  1875.     def slot_verticalScrollBarChanged(self, value):

  1876.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1877.         if maximum == 0:

  1878.             yp = 0

  1879.         else:

  1880.             yp = float(value) / maximum

  1881.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1882.         self.updateCanvasInitialPos()

  1883. 

  1884.     # --------------------------------------------------------------------------------------------------------

  1885.     # Canvas keyboard

  1886. 

  1887.     @pyqtSlot(int)

  1888.     def slot_noteOn(self, note):

  1889.         for pluginId in self.fSelectedPlugins:

  1890.             self.host.send_midi_note(pluginId, 0, note, 100)

  1891. 

  1892.             pedit = self.getPluginEditDialog(pluginId)

  1893.             pedit.noteOn(0, note, 100)

  1894. 

  1895.     @pyqtSlot(int)

  1896.     def slot_noteOff(self, note):

  1897.         for pluginId in self.fSelectedPlugins:

  1898.             self.host.send_midi_note(pluginId, 0, note, 0)

  1899. 

  1900.             pedit = self.getPluginEditDialog(pluginId)

  1901.             pedit.noteOff(0, note)

  1902. 

  1903.     # --------------------------------------------------------------------------------------------------------

  1904.     # Canvas keyboard (host callbacks)

  1905. 

  1906.     @pyqtSlot(int, int, int, int)

  1907.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1908.         if pluginId in self.fSelectedPlugins:

  1909.             self.ui.keyboard.sendNoteOn(note, False)

  1910. 

  1911.     @pyqtSlot(int, int, int)

  1912.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1913.         if pluginId in self.fSelectedPlugins:

  1914.             self.ui.keyboard.sendNoteOff(note, False)

  1915. 

  1916.     # --------------------------------------------------------------------------------------------------------

  1917. 

  1918.     @pyqtSlot(int)

  1919.     def slot_handleUpdateCallback(self, pluginId):

  1920.         pitem = self.getPluginItem(pluginId)

  1921. 

  1922.         if pitem is None:

  1923.             return

  1924. 

  1925.         wasCompacted = pitem.isCompacted()

  1926.         isCompacted  = wasCompacted

  1927. 

  1928.         for i in range(self.host.get_custom_data_count(pluginId)):

  1929.             cdata = self.host.get_custom_data(pluginId, i)

  1930. 

  1931.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1932.                 isCompacted = bool(cdata['value'] == "true")

  1933.                 break

  1934.         else:

  1935.             return

  1936. 

  1937.         if wasCompacted == isCompacted:

  1938.             return

  1939. 

  1940.         pitem.recreateWidget(True)

  1941. 

  1942.     # --------------------------------------------------------------------------------------------------------

  1943.     # MiniCanvas stuff

  1944. 

  1945.     @pyqtSlot()

  1946.     def slot_miniCanvasCheckAll(self):

  1947.         self.slot_miniCanvasCheckSize()

  1948.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1949.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1950. 

  1951.     @pyqtSlot()

  1952.     def slot_miniCanvasCheckSize(self):

  1953.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1954.             return

  1955. 

  1956.         currentIndex = self.ui.tabWidget.currentIndex()

  1957. 

  1958.         if currentIndex == 1:

  1959.             width  = self.ui.graphicsView.width()

  1960.             height = self.ui.graphicsView.height()

  1961.         else:

  1962.             self.ui.tabWidget.blockSignals(True)

  1963.             self.ui.tabWidget.setCurrentIndex(1)

  1964.             width  = self.ui.graphicsView.width()

  1965.             height = self.ui.graphicsView.height()

  1966.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1967.             self.ui.tabWidget.blockSignals(False)

  1968. 

  1969.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1970. 

  1971.     @pyqtSlot(float, float)

  1972.     def slot_miniCanvasMoved(self, xp, yp):

  1973.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1974.         vsb = self.ui.graphicsView.verticalScrollBar()

  1975.         hsb.setValue(xp * hsb.maximum())

  1976.         vsb.setValue(yp * vsb.maximum())

  1977.         self.updateCanvasInitialPos()

  1978. 

  1979.     # --------------------------------------------------------------------------------------------------------

  1980.     # Timers

  1981. 

  1982.     def startTimers(self):

  1983.         if self.fIdleTimerFast == 0:

  1984.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1985. 

  1986.         if self.fIdleTimerSlow == 0:

  1987.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1988. 

  1989.     def restartTimersIfNeeded(self):

  1990.         if self.fIdleTimerFast != 0:

  1991.             self.killTimer(self.fIdleTimerFast)

  1992.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1993. 

  1994.         if self.fIdleTimerSlow != 0:

  1995.             self.killTimer(self.fIdleTimerSlow)

  1996.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1997. 

  1998.     def killTimers(self):

  1999.         if self.fIdleTimerFast != 0:

  2000.             self.killTimer(self.fIdleTimerFast)

  2001.             self.fIdleTimerFast = 0

  2002. 

  2003.         if self.fIdleTimerSlow != 0:

  2004.             self.killTimer(self.fIdleTimerSlow)

  2005.             self.fIdleTimerSlow = 0

  2006. 

  2007.     # --------------------------------------------------------------------------------------------------------

  2008.     # Misc

  2009. 

  2010.     @pyqtSlot(int)

  2011.     def slot_tabChanged(self, index):

  2012.         if index != 1:

  2013.             return

  2014. 

  2015.         self.ui.graphicsView.setFocus()

  2016. 

  2017.     @pyqtSlot(int)

  2018.     def slot_handleReloadAllCallback(self, pluginId):

  2019.         if pluginId >= self.fPluginCount:

  2020.             return

  2021. 

  2022.         pitem = self.fPluginList[pluginId]

  2023.         if pitem is None:

  2024.             return

  2025. 

  2026.         pitem.recreateWidget()

  2027. 

  2028.     # --------------------------------------------------------------------------------------------------------

  2029. 

  2030.     @pyqtSlot(int, int, str)

  2031.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  2032.         # Error

  2033.         if value1 == 0:

  2034.             pass

  2035. 

  2036.         # Reply

  2037.         elif value1 == 1:

  2038.             self.fFirstEngineInit    = False

  2039.             self.fSessionManagerName = valueStr

  2040.             self.setProperWindowTitle()

  2041. 

  2042.         # Open

  2043.         elif value1 == 2:

  2044.             self.fClientName      = os.path.basename(valueStr)

  2045.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2046.             self.setProperWindowTitle()

  2047. 

  2048.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2049.             self.slot_engineStop(True)

  2050.             return

  2051. 

  2052.         # Save

  2053.         elif value1 == 3:

  2054.             self.saveProjectNow()

  2055. 

  2056.         # Session is Loaded

  2057.         elif value1 == 4:

  2058.             pass

  2059. 

  2060.         # Show Optional Gui

  2061.         elif value1 == 5:

  2062.             self.show()

  2063. 

  2064.         # Hide Optional Gui

  2065.         elif value1 == 6:

  2066.             self.hide()

  2067. 

  2068.         self.host.nsm_ready(value1)

  2069. 

  2070.     # --------------------------------------------------------------------------------------------------------

  2071. 

  2072.     def fixLogText(self, text):

  2073.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2074. 

  2075.     @pyqtSlot(int, int, int, float, str)

  2076.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  2077.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2078. 

  2079.     @pyqtSlot(str)

  2080.     def slot_handleInfoCallback(self, info):

  2081.         QMessageBox.information(self, "Information", info)

  2082. 

  2083.     @pyqtSlot(str)

  2084.     def slot_handleErrorCallback(self, error):

  2085.         QMessageBox.critical(self, "Error", error)

  2086. 

  2087.     @pyqtSlot()

  2088.     def slot_handleQuitCallback(self):

  2089.         pass # TODO

  2090. 

  2091.     # --------------------------------------------------------------------------------------------------------

  2092. 

  2093.     @pyqtSlot()

  2094.     def slot_handleSIGUSR1(self):

  2095.         print("Got SIGUSR1 -> Saving project now")

  2096.         self.slot_fileSave()

  2097. 

  2098.     @pyqtSlot()

  2099.     def slot_handleSIGTERM(self):

  2100.         print("Got SIGTERM -> Closing now")

  2101.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2102.         self.slot_engineStop(True)

  2103. 

  2104.     # --------------------------------------------------------------------------------------------------------

  2105.     # Internal stuff

  2106. 

  2107.     def getExtraPtr(self, plugin):

  2108.         ptype = plugin['type']

  2109. 

  2110.         if ptype == PLUGIN_LADSPA:

  2111.             uniqueId = plugin['uniqueId']

  2112. 

  2113.             self.maybeLoadRDFs()

  2114. 

  2115.             for rdfItem in self.fLadspaRdfList:

  2116.                 if rdfItem.UniqueID == uniqueId:

  2117.                     return pointer(rdfItem)

  2118. 

  2119.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  2120.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2121.                 return self._true

  2122. 

  2123.         return None

  2124. 

  2125.     def maybeLoadRDFs(self):

  2126.         if not self.fLadspaRdfNeedsUpdate:

  2127.             return

  2128. 

  2129.         self.fLadspaRdfNeedsUpdate = False

  2130.         self.fLadspaRdfList = []

  2131. 

  2132.         if not haveLRDF:

  2133.             return

  2134. 

  2135.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2136.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2137. 

  2138.         if os.path.exists(frLadspaFile):

  2139.             frLadspa = open(frLadspaFile, 'r')

  2140. 

  2141.             try:

  2142.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2143.             except:

  2144.                 pass

  2145. 

  2146.             frLadspa.close()

  2147. 

  2148.     # --------------------------------------------------------------------------------------------------------

  2149. 

  2150.     def getPluginCount(self):

  2151.         return self.fPluginCount

  2152. 

  2153.     def getPluginItem(self, pluginId):

  2154.         if pluginId >= self.fPluginCount:

  2155.             return None

  2156. 

  2157.         pitem = self.fPluginList[pluginId]

  2158.         if pitem is None:

  2159.             return None

  2160.         #if False:

  2161.             #return CarlaRackItem(self, 0, False)

  2162. 

  2163.         return pitem

  2164. 

  2165.     def getPluginEditDialog(self, pluginId):

  2166.         if pluginId >= self.fPluginCount:

  2167.             return None

  2168. 

  2169.         pitem = self.fPluginList[pluginId]

  2170.         if pitem is None:

  2171.             return None

  2172.         if False:

  2173.             return PluginEdit(self, self.host, 0)

  2174. 

  2175.         return pitem.getEditDialog()

  2176. 

  2177.     def getPluginSlotWidget(self, pluginId):

  2178.         if pluginId >= self.fPluginCount:

  2179.             return None

  2180. 

  2181.         pitem = self.fPluginList[pluginId]

  2182.         if pitem is None:

  2183.             return None

  2184.         #if False:

  2185.             #return AbstractPluginSlot()

  2186. 

  2187.         return pitem.getWidget()

  2188. 

  2189.     # --------------------------------------------------------------------------------------------------------

  2190. 

  2191.     def waitForPendingEvents(self):

  2192.         pass

  2193. 

  2194.     # --------------------------------------------------------------------------------------------------------

  2195.     # show/hide event

  2196. 

  2197.     def showEvent(self, event):

  2198.         self.refreshTransport(True)

  2199.         QMainWindow.showEvent(self, event)

  2200. 

  2201.         # set our gui as parent for all plugins UIs

  2202.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2203.             if MACOS:

  2204.                 nsViewPtr = int(self.winId())

  2205.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2206.             else:

  2207.                 winIdStr = "%x" % int(self.winId())

  2208.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2209. 

  2210.     def hideEvent(self, event):

  2211.         # disable parent

  2212.         if not (self.host.isControl or self.host.isPlugin):

  2213.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2214. 

  2215.         QMainWindow.hideEvent(self, event)

  2216. 

  2217.     # --------------------------------------------------------------------------------------------------------

  2218.     # resize event

  2219. 

  2220.     def fixCanvasPreviewSize(self):

  2221.         self.ui.patchbay.resize(self.ui.rack.size())

  2222.         self.slot_miniCanvasCheckSize()

  2223. 

  2224.     def resizeEvent(self, event):

  2225.         QMainWindow.resizeEvent(self, event)

  2226. 

  2227.         if self.ui.tabWidget.currentIndex() != 1:

  2228.             size = self.ui.rack.size()

  2229.             self.ui.patchbay.resize(size)

  2230. 

  2231.         self.slot_miniCanvasCheckSize()

  2232. 

  2233.     # --------------------------------------------------------------------------------------------------------

  2234.     # timer event

  2235. 

  2236.     def idleFast(self):

  2237.         self.host.engine_idle()

  2238.         self.refreshTransport()

  2239. 

  2240.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2241.             return

  2242. 

  2243.         for pitem in self.fPluginList:

  2244.             if pitem is None:

  2245.                 break

  2246. 

  2247.             pitem.getWidget().idleFast()

  2248. 

  2249.         for pluginId in self.fSelectedPlugins:

  2250.             self.fPeaksCleared = False

  2251.             if self.ui.peak_in.isVisible():

  2252.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2253.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2254.             if self.ui.peak_out.isVisible():

  2255.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2256.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2257.             return

  2258. 

  2259.         if self.fPeaksCleared:

  2260.             return

  2261. 

  2262.         self.fPeaksCleared = True

  2263.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2264.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2265.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2266.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2267. 

  2268.     def idleSlow(self):

  2269.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2270.             return

  2271. 

  2272.         for pitem in self.fPluginList:

  2273.             if pitem is None:

  2274.                 break

  2275. 

  2276.             pitem.getWidget().idleSlow()

  2277. 

  2278.     def timerEvent(self, event):

  2279.         if event.timerId() == self.fIdleTimerFast:

  2280.             self.idleFast()

  2281. 

  2282.         elif event.timerId() == self.fIdleTimerSlow:

  2283.             self.idleSlow()

  2284. 

  2285.         QMainWindow.timerEvent(self, event)

  2286. 

  2287.     # --------------------------------------------------------------------------------------------------------

  2288.     # paint event

  2289. 

  2290.     #def paintEvent(self, event):

  2291.         #QMainWindow.paintEvent(self, event)

  2292. 

  2293.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2294.             #return

  2295. 

  2296.         #painter = QPainter(self)

  2297.         #painter.setBrush(QColor(36, 36, 36))

  2298.         #painter.setPen(QColor(62, 62, 62))

  2299.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2300. 

  2301.     # --------------------------------------------------------------------------------------------------------

  2302.     # close event

  2303. 

  2304.     def shouldIgnoreClose(self):

  2305.         if self.host.isControl or self.host.isPlugin:

  2306.             return False

  2307.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2308.             return False

  2309.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2310.             return QMessageBox.question(self, self.tr("Quit"),

  2311.                                               self.tr("Are you sure you want to quit Carla?"),

  2312.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2313.         return False

  2314. 

  2315.     def closeEvent(self, event):

  2316.         if self.shouldIgnoreClose():

  2317.             event.ignore()

  2318.             return

  2319. 

  2320.         self.killTimers()

  2321.         self.saveSettings()

  2322. 

  2323.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2324.             if not self.slot_engineStop(True):

  2325.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2326.                 event.ignore()

  2327.                 return

  2328. 

  2329.         QMainWindow.closeEvent(self, event)

  2330. 

  2331. # ------------------------------------------------------------------------------------------------

  2332. # Canvas callback

  2333. 

  2334. def canvasCallback(action, value1, value2, valueStr):

  2335.     host = gCarla.gui.host

  2336. 

  2337.     if action == patchcanvas.ACTION_GROUP_INFO:

  2338.         pass

  2339. 

  2340.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2341.         pass

  2342. 

  2343.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2344.         groupId = value1

  2345.         patchcanvas.splitGroup(groupId)

  2346.         gCarla.gui.updateMiniCanvasLater()

  2347. 

  2348.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2349.         groupId = value1

  2350.         patchcanvas.joinGroup(groupId)

  2351.         gCarla.gui.updateMiniCanvasLater()

  2352. 

  2353.     elif action == patchcanvas.ACTION_PORT_INFO:

  2354.         pass

  2355. 

  2356.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2357.         pass

  2358. 

  2359.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2360.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2361. 

  2362.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2363.             print("Connection failed:", host.get_last_error())

  2364. 

  2365.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2366.         connectionId = value1

  2367. 

  2368.         if not host.patchbay_disconnect(connectionId):

  2369.             print("Disconnect failed:", host.get_last_error())

  2370. 

  2371.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2372.         pluginId = value1

  2373. 

  2374.         if not host.clone_plugin(pluginId):

  2375.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2376.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2377. 

  2378.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2379.         pluginId = value1

  2380.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2381. 

  2382.         if pwidget is not None:

  2383.             pwidget.showEditDialog()

  2384. 

  2385.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2386.         pluginId = value1

  2387.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2388. 

  2389.         if pwidget is not None:

  2390.             pwidget.showRenameDialog()

  2391. 

  2392.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2393.         pluginId = value1

  2394.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2395. 

  2396.         if pwidget is not None:

  2397.             pwidget.showReplaceDialog()

  2398. 

  2399.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2400.         pluginId = value1

  2401. 

  2402.         if not host.remove_plugin(pluginId):

  2403.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2404.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2405. 

  2406.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2407.         pluginId = value1

  2408.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2409. 

  2410.         if pwidget is not None:

  2411.             pwidget.showCustomUI()

  2412. 

  2413.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2414.         gCarla.gui.showPluginActionsMenu()

  2415. 

  2416. # ------------------------------------------------------------------------------------------------------------

  2417. # Engine callback

  2418. 

  2419. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2420.     # kdevelop likes this :)

  2421.     if False: host = CarlaHostNull()

  2422. 

  2423.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2424.         host.processMode   = value1

  2425.         host.transportMode = value2

  2426.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2427.         host.processMode   = value1

  2428.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2429.         host.transportMode = value1

  2430. 

  2431.     valueStr = charPtrToString(valueStr)

  2432. 

  2433.     if action == ENGINE_CALLBACK_DEBUG:

  2434.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2435.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2436.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2437.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2438.         host.PluginRemovedCallback.emit(pluginId)

  2439.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2440.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2441.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2442.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2443.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2444.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2445.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2446.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2447.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2448.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2449.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2450.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2451.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2452.         host.ProgramChangedCallback.emit(pluginId, value1)

  2453.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2454.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2455.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2456.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2457.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2458.         host.UiStateChangedCallback.emit(pluginId, value1)

  2459.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2460.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2461.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2462.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2463.     elif action == ENGINE_CALLBACK_UPDATE:

  2464.         host.UpdateCallback.emit(pluginId)

  2465.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2466.         host.ReloadInfoCallback.emit(pluginId)

  2467.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2468.         host.ReloadParametersCallback.emit(pluginId)

  2469.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2470.         host.ReloadProgramsCallback.emit(pluginId)

  2471.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2472.         host.ReloadAllCallback.emit(pluginId)

  2473.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2474.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2475.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2476.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2477.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2478.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2479.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2480.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2481.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2482.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2483.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2484.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2485.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2486.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2487.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2488.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2489.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2490.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2491.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2492.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2493.         host.EngineStartedCallback.emit(value1, value2, value3, valueStr)

  2494.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2495.         host.EngineStoppedCallback.emit()

  2496.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2497.         host.ProcessModeChangedCallback.emit(value1)

  2498.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2499.         host.TransportModeChangedCallback.emit(value1)

  2500.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2501.         host.BufferSizeChangedCallback.emit(value1)

  2502.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2503.         host.SampleRateChangedCallback.emit(value3)

  2504.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2505.         host.ProjectLoadFinishedCallback.emit()

  2506.     elif action == ENGINE_CALLBACK_NSM:

  2507.         host.NSMCallback.emit(value1, value2, valueStr)

  2508.     elif action == ENGINE_CALLBACK_IDLE:

  2509.         QApplication.instance().processEvents()

  2510.     elif action == ENGINE_CALLBACK_INFO:

  2511.         host.InfoCallback.emit(valueStr)

  2512.     elif action == ENGINE_CALLBACK_ERROR:

  2513.         host.ErrorCallback.emit(valueStr)

  2514.     elif action == ENGINE_CALLBACK_QUIT:

  2515.         host.QuitCallback.emit()

  2516. 

  2517. # ------------------------------------------------------------------------------------------------------------

  2518. # File callback

  2519. 

  2520. def fileCallback(ptr, action, isDir, title, filter):

  2521.     ret = ("", "") if config_UseQt5 else ""

  2522. 

  2523.     title  = charPtrToString(title)

  2524.     filter = charPtrToString(filter)

  2525. 

  2526.     if action == FILE_CALLBACK_OPEN:

  2527.         ret = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2528.     elif action == FILE_CALLBACK_SAVE:

  2529.         ret = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2530. 

  2531.     if config_UseQt5:

  2532.         ret = ret[0]

  2533.     if not ret:

  2534.         return None

  2535. 

  2536.     # FIXME

  2537.     global fileRet

  2538.     fileRet = c_char_p(ret.encode("utf-8"))

  2539.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2540.     return retval.contents.value

  2541. 

  2542. # ------------------------------------------------------------------------------------------------------------

  2543. # Init host

  2544. 

  2545. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2546.     pathBinaries, pathResources = getPaths(libPrefix)

  2547. 

  2548.     # --------------------------------------------------------------------------------------------------------

  2549.     # Check if we should open main lib as local or global

  2550. 

  2551.     settings = QSettings("falkTX", "Carla2")

  2552. 

  2553.     try:

  2554.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2555.     except:

  2556.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2557. 

  2558.     # --------------------------------------------------------------------------------------------------------

  2559.     # Fail if binary dir is not found

  2560. 

  2561.     if not os.path.exists(pathBinaries):

  2562.         if failError:

  2563.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2564.             sys.exit(1)

  2565.         return

  2566. 

  2567.     # --------------------------------------------------------------------------------------------------------

  2568.     # Set Carla library name

  2569. 

  2570.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2571.     libname   = os.path.join(pathBinaries, libname)

  2572.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2573. 

  2574.     # --------------------------------------------------------------------------------------------------------

  2575.     # Print info

  2576. 

  2577.     print("Carla %s started, status:" % VERSION)

  2578.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2579.     print("  Qt version:     %s" % qVersion())

  2580.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2581.     print("  Binary dir:     %s" % pathBinaries)

  2582.     print("  Resources dir:  %s" % pathResources)

  2583. 

  2584.     # --------------------------------------------------------------------------------------------------------

  2585.     # Init host

  2586. 

  2587.     if failError:

  2588.         # no try

  2589.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2590.     else:

  2591.         try:

  2592.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2593.         except:

  2594.             host = CarlaHostQtNull()

  2595. 

  2596.     host.isControl = isControl

  2597.     host.isPlugin  = isPlugin

  2598. 

  2599.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2600.     host.set_file_callback(fileCallback)

  2601. 

  2602.     # If it's a plugin the paths are already set

  2603.     if not isPlugin:

  2604.         host.pathBinaries  = pathBinaries

  2605.         host.pathResources = pathResources

  2606.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2607.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2608. 

  2609.         if not isControl:

  2610.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2611. 

  2612.     # --------------------------------------------------------------------------------------------------------

  2613.     # Init utils

  2614. 

  2615.     gCarla.utils = CarlaUtils(utilsname)

  2616.     gCarla.utils.set_process_name(os.path.basename(initName))

  2617. 

  2618.     try:

  2619.         sys.stdout.flush()

  2620.     except:

  2621.         pass

  2622. 

  2623.     sys.stdout = CarlaPrint(False)

  2624.     sys.stderr = CarlaPrint(True)

  2625. 

  2626.     if config_UseQt5:

  2627.         sys.excepthook = sys_excepthook

  2628. 

  2629.     # --------------------------------------------------------------------------------------------------------

  2630.     # Done

  2631. 

  2632.     return host

  2633. 

  2634. # ------------------------------------------------------------------------------------------------------------

  2635. # Load host settings

  2636. 

  2637. def loadHostSettings(host):

  2638.     # kdevelop likes this :)

  2639.     if False: host = CarlaHostNull()

  2640. 

  2641.     settings = QSettings("falkTX", "Carla2")

  2642. 

  2643.     try:

  2644.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2645.     except:

  2646.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2647. 

  2648.     try:

  2649.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2650.     except:

  2651.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2652. 

  2653.     try:

  2654.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2655.     except:

  2656.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2657. 

  2658.     try:

  2659.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2660.     except:

  2661.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2662. 

  2663.     try:

  2664.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2665.     except:

  2666.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2667. 

  2668.     try:

  2669.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2670.     except:

  2671.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2672. 

  2673.     try:

  2674.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2675.     except:

  2676.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2677. 

  2678.     try:

  2679.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2680.     except:

  2681.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2682. 

  2683.     try:

  2684.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2685.     except:

  2686.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2687. 

  2688.     try:

  2689.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2690.     except:

  2691.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2692. 

  2693.     try:

  2694.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2695.     except:

  2696.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2697. 

  2698.     try:

  2699.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2700.     except:

  2701.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2702. 

  2703.     try:

  2704.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2705.     except:

  2706.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2707. 

  2708.     if host.isPlugin:

  2709.         return

  2710. 

  2711.     # enums

  2712.     if host.audioDriverForced is None:

  2713.         try:

  2714.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2715.         except:

  2716.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2717. 

  2718.     if not host.processModeForced:

  2719.         try:

  2720.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2721.         except:

  2722.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2723. 

  2724.     host.nextProcessMode = host.processMode

  2725. 

  2726.     # --------------------------------------------------------------------------------------------------------

  2727.     # fix things if needed

  2728. 

  2729.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2730.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2731.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2732. 

  2733.     if gCarla.nogui:

  2734.         host.showLogs = False

  2735. 

  2736.     # --------------------------------------------------------------------------------------------------------

  2737.     # run headless host now if nogui option enabled

  2738. 

  2739.     if gCarla.nogui:

  2740.         runHostWithoutUI(host)

  2741. 

  2742. # ------------------------------------------------------------------------------------------------------------

  2743. # Set host settings

  2744. 

  2745. def setHostSettings(host):

  2746.     # kdevelop likes this :)

  2747.     if False: host = CarlaHostNull()

  2748. 

  2749.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2750.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2751.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2752.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2753.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2754.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2755.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2756.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2757. 

  2758.     if host.isPlugin:

  2759.         return

  2760. 

  2761.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2762.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2763. 

  2764. # ------------------------------------------------------------------------------------------------------------

  2765. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2766. 

  2767. def setEngineSettings(host):

  2768.     # kdevelop likes this :)

  2769.     if False: host = CarlaHostNull()

  2770. 

  2771.     # --------------------------------------------------------------------------------------------------------

  2772.     # do nothing if control

  2773. 

  2774.     if host.isControl:

  2775.         return "Control"

  2776. 

  2777.     # --------------------------------------------------------------------------------------------------------

  2778. 

  2779.     settings = QSettings("falkTX", "Carla2")

  2780. 

  2781.     # --------------------------------------------------------------------------------------------------------

  2782.     # main settings

  2783. 

  2784.     setHostSettings(host)

  2785. 

  2786.     # --------------------------------------------------------------------------------------------------------

  2787.     # plugin paths

  2788. 

  2789.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2790.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2791.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2792.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2793.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2794.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2795.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2796. 

  2797.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2798.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2799.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2800.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2801.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2802.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2803.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2804. 

  2805.     # --------------------------------------------------------------------------------------------------------

  2806.     # don't continue if plugin

  2807. 

  2808.     if host.isPlugin:

  2809.         return "Plugin"

  2810. 

  2811.     # --------------------------------------------------------------------------------------------------------

  2812.     # driver and device settings

  2813. 

  2814.     # driver name

  2815.     if host.audioDriverForced is not None:

  2816.         audioDriver = host.audioDriverForced

  2817.     else:

  2818.         try:

  2819.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2820.         except:

  2821.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2822. 

  2823.     # driver options

  2824.     try:

  2825.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2826.     except:

  2827.         audioDevice = ""

  2828. 

  2829.     try:

  2830.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2831.     except:

  2832.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2833. 

  2834.     try:

  2835.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2836.     except:

  2837.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2838. 

  2839.     try:

  2840.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2841.     except:

  2842.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2843. 

  2844.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2845.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2846.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2847.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2848. 

  2849.     # --------------------------------------------------------------------------------------------------------

  2850.     # fix things if needed

  2851. 

  2852.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2853.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2854.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2855. 

  2856.     # --------------------------------------------------------------------------------------------------------

  2857.     # wine settings

  2858. 

  2859.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2860.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2861.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2862.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2863.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2864.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2865. 

  2866.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2867.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2868.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2869.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2870.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2871.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2872. 

  2873.     # --------------------------------------------------------------------------------------------------------

  2874.     # return selected driver name

  2875. 

  2876.     return audioDriver

  2877. 

  2878. # ------------------------------------------------------------------------------------------------------------

  2879. # Run Carla without showing UI

  2880. 

  2881. def runHostWithoutUI(host):

  2882.     # kdevelop likes this :)

  2883.     if False: host = CarlaHostNull()

  2884. 

  2885.     # --------------------------------------------------------------------------------------------------------

  2886.     # Some initial checks

  2887. 

  2888.     if not gCarla.nogui:

  2889.         return

  2890. 

  2891.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2892. 

  2893.     if not projectFile:

  2894.         print("Carla no-gui mode can only be used together with a project file.")

  2895.         sys.exit(1)

  2896. 

  2897.     # --------------------------------------------------------------------------------------------------------

  2898.     # Additional imports

  2899. 

  2900.     from time import sleep

  2901. 

  2902.     # --------------------------------------------------------------------------------------------------------

  2903.     # Init engine

  2904. 

  2905.     audioDriver = setEngineSettings(host)

  2906.     if not host.engine_init(audioDriver, "Carla"):

  2907.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2908.         sys.exit(1)

  2909. 

  2910.     if not host.load_project(projectFile):

  2911.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2912.         host.engine_close()

  2913.         sys.exit(1)

  2914. 

  2915.     # --------------------------------------------------------------------------------------------------------

  2916.     # Idle

  2917. 

  2918.     while host.is_engine_running() and not gCarla.term:

  2919.         host.engine_idle()

  2920.         sleep(0.0333) # 30 Hz

  2921. 

  2922.     # --------------------------------------------------------------------------------------------------------

  2923.     # Stop

  2924. 

  2925.     host.engine_close()

  2926.     sys.exit(0)

  2927. 

  2928. # ------------------------------------------------------------------------------------------------------------