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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) 2011-2016 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(type, value, tback):

  69.     return sys.__excepthook__(type, 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.     # --------------------------------------------------------------------------------------------------------

  101. 

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

  103.         QMainWindow.__init__(self, parent)

  104.         self.host = host

  105.         self.ui = ui_carla_host.Ui_CarlaHostW()

  106.         self.ui.setupUi(self)

  107.         gCarla.gui = self

  108. 

  109.         if False:

  110.             # kdevelop likes this :)

  111.             host = CarlaHostNull()

  112.             self.host = host

  113. 

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

  115. 

  116.         self.fParentOrSelf = parent or self

  117. 

  118.         # ----------------------------------------------------------------------------------------------------

  119.         # Internal stuff

  120. 

  121.         self.fIdleTimerFast = 0

  122.         self.fIdleTimerSlow = 0

  123. 

  124.         self.fLadspaRdfNeedsUpdate = True

  125.         self.fLadspaRdfList = []

  126. 

  127.         self.fPluginCount = 0

  128.         self.fPluginList  = []

  129. 

  130.         self.fProjectFilename  = ""

  131.         self.fIsProjectLoading = False

  132.         self.fCurrentlyRemovingAllPlugins = False

  133. 

  134.         self.fLastTransportBPM   = 0.0

  135.         self.fLastTransportFrame = 0

  136.         self.fLastTransportState = False

  137.         self.fSampleRate         = 0.0

  138. 

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

  140.         # 1 for close carla, 2 for load project

  141.         self.fCustomStopAction = 0

  142. 

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

  144.         self.fFirstEngineInit = True

  145. 

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

  147.         self.fSavedSettings = {}

  148. 

  149.         if host.isControl:

  150.             self.fClientName         = "Carla-Control"

  151.             self.fSessionManagerName = "Control"

  152.         elif host.isPlugin:

  153.             self.fClientName         = "Carla-Plugin"

  154.             self.fSessionManagerName = "Plugin"

  155.         elif LADISH_APP_NAME:

  156.             self.fClientName         = LADISH_APP_NAME

  157.             self.fSessionManagerName = "LADISH"

  158.         elif NSM_URL and host.nsmOK:

  159.             self.fClientName         = "Carla.tmp"

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

  161.         else:

  162.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  163.             self.fSessionManagerName = ""

  164. 

  165.         # ----------------------------------------------------------------------------------------------------

  166.         # Internal stuff (patchbay)

  167. 

  168.         self.fExportImage = QImage()

  169. 

  170.         self.fPeaksCleared = True

  171. 

  172.         self.fExternalPatchbay = False

  173.         self.fSelectedPlugins  = []

  174. 

  175.         self.fCanvasWidth  = 0

  176.         self.fCanvasHeight = 0

  177.         self.fMiniCanvasUpdateTimeout = 0

  178. 

  179.         self.fWithCanvas = withCanvas

  180. 

  181.         # ----------------------------------------------------------------------------------------------------

  182.         # Set up GUI (engine stopped)

  183. 

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

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

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

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

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

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

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

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

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

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

  194. 

  195.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

  206.             else:

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

  208. 

  209.         else:

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

  211. 

  212.             if WINDOWS:

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

  214. 

  215.         if not self.host.isControl:

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

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

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

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

  220. 

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

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

  223. 

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

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

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

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

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

  229. 

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

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

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

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

  234. 

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

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

  237. 

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

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

  240. 

  241.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  259.             self.ui.miniCanvasPreview.hide()

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

  261.             if WINDOWS:

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

  263. 

  264.             if host.isControl:

  265.                 self.ui.dockWidget.hide()

  266. 

  267.         # ----------------------------------------------------------------------------------------------------

  268.         # Set up GUI (disk)

  269. 

  270.         self.fDirModel = QFileSystemModel(self)

  271.         self.fDirModel.setRootPath(HOME)

  272.         self.fDirModel.setNameFilters(gCarla.utils.get_supported_file_extensions().split(";"))

  273. 

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

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

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

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

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

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

  280. 

  281.         # ----------------------------------------------------------------------------------------------------

  282.         # Set up GUI (transport)

  283. 

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

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

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

  287. 

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

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

  290. 

  291.         if minLabelWidth < labelTimeWidth:

  292.             minLabelWidth = labelTimeWidth

  293.         if minLabelWidth < labelBBTWidth:

  294.             minLabelWidth = labelBBTWidth

  295. 

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

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

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

  299. 

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

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

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

  303. 

  304.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

  311. 

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

  313. 

  314.         # ----------------------------------------------------------------------------------------------------

  315.         # Set up GUI (rack)

  316. 

  317.         self.ui.listWidget.setHost(self.host)

  318. 

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

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

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

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

  323. 

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

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

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

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

  328. 

  329.         self.ui.rack.setStyleSheet("""

  330.           QLabel#pad_left {

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

  332.             background-repeat: repeat-y;

  333.           }

  334.           QLabel#pad_right {

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

  336.             background-repeat: repeat-y;

  337.           }

  338.           CarlaRackList#CarlaRackList {

  339.             background-color: black;

  340.           }

  341.         """)

  342. 

  343.         # ----------------------------------------------------------------------------------------------------

  344.         # Set up GUI (patchbay)

  345. 

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

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

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

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

  350. 

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

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

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

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

  355. 

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

  357.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  359. 

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

  361. 

  362.         self.ui.miniCanvasPreview.setRealParent(self)

  363. 

  364.         # ----------------------------------------------------------------------------------------------------

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

  366. 

  367.         if MACOS:

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

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

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

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

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

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

  374. 

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

  376.         # Load Settings

  377. 

  378.         self.loadSettings(True)

  379. 

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

  381.         # Set-up Canvas

  382. 

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

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

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

  386. 

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

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

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

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

  391. 

  392.         self.setupCanvas()

  393. 

  394.         # ----------------------------------------------------------------------------------------------------

  395.         # Connect actions to functions

  396. 

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

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

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

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

  401. 

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

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

  404. 

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

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

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

  408. 

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

  410. 

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

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

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

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

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

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

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

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

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

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

  421. 

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

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

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

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

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

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

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

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

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

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

  432. 

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

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

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

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

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

  438. 

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

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

  441. 

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

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

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

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

  446. 

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

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

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

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

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

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

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

  454. 

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

  456. 

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

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

  459. 

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

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

  462. 

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

  464. 

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

  466. 

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

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

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

  470. 

  471.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  472.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  473. 

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

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

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

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

  478. 

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

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

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

  482. 

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

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

  485. 

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

  487. 

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

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

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

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

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

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

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

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

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

  497. 

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

  499. 

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

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

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

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

  504. 

  505.         # ----------------------------------------------------------------------------------------------------

  506.         # Final setup

  507. 

  508.         self.ui.text_logs.clear()

  509.         self.setProperWindowTitle()

  510. 

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

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

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

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

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

  516. 

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

  518.         if self.host.isPlugin:

  519.             self.startTimers()

  520. 

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

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

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

  524. 

  525.         # Load initial project file if set

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

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

  528. 

  529.             if projectFile:

  530.                 self.loadProjectLater(projectFile)

  531. 

  532.         # For NSM we wait for the open message

  533.         if NSM_URL and host.nsmOK:

  534.             host.nsm_ready(-1)

  535.             return

  536. 

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

  538. 

  539.     # --------------------------------------------------------------------------------------------------------

  540.     # Setup

  541. 

  542.     def compactPlugin(self, pluginId):

  543.         if pluginId > self.fPluginCount:

  544.             return

  545. 

  546.         pitem = self.fPluginList[pluginId]

  547. 

  548.         if pitem is None:

  549.             return

  550. 

  551.         pitem.recreateWidget(True)

  552. 

  553.     def setLoadRDFsNeeded(self):

  554.         self.fLadspaRdfNeedsUpdate = True

  555. 

  556.     def setProperWindowTitle(self):

  557.         title = self.fClientName

  558. 

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

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

  561.         if self.fSessionManagerName:

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

  563. 

  564.         self.setWindowTitle(title)

  565. 

  566.     # --------------------------------------------------------------------------------------------------------

  567.     # Files

  568. 

  569.     def makeExtraFilename(self):

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

  571. 

  572.     def loadProjectNow(self):

  573.         if not self.fProjectFilename:

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

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

  576.             return

  577. 

  578.         self.projectLoadingStarted()

  579.         self.fIsProjectLoading = True

  580.         self.host.load_project(self.fProjectFilename)

  581. 

  582.         # Project finished loading is sent by engine

  583. 

  584.     def loadProjectLater(self, filename):

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

  586.         self.setProperWindowTitle()

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

  588. 

  589.     def saveProjectNow(self):

  590.         if not self.fProjectFilename:

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

  592. 

  593.         self.host.save_project(self.fProjectFilename)

  594. 

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

  596.             json.dump({

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

  598.             }, fh)

  599. 

  600.     def projectLoadingStarted(self):

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

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

  603. 

  604.     def projectLoadingFinished(self):

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

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

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

  608. 

  609.         extrafile = self.makeExtraFilename()

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

  611.             return

  612. 

  613.         try:

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

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

  616.         except:

  617.             return

  618. 

  619.         patchcanvas.restoreGroupPositions(canvasdata)

  620. 

  621.     # --------------------------------------------------------------------------------------------------------

  622.     # Files (menu actions)

  623. 

  624.     @pyqtSlot()

  625.     def slot_fileNew(self):

  626.         self.slot_pluginRemoveAll()

  627.         self.fProjectFilename = ""

  628.         self.setProperWindowTitle()

  629. 

  630.     @pyqtSlot()

  631.     def slot_fileOpen(self):

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

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

  634. 

  635.         if config_UseQt5:

  636.             filename = filename[0]

  637.         if not filename:

  638.             return

  639. 

  640.         newFile = True

  641. 

  642.         if self.fPluginCount > 0:

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

  644.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  646. 

  647.         if newFile:

  648.             self.slot_pluginRemoveAll()

  649.             self.fProjectFilename = filename

  650.             self.setProperWindowTitle()

  651.             self.loadProjectNow()

  652.         else:

  653.             filenameOld = self.fProjectFilename

  654.             self.fProjectFilename = filename

  655.             self.loadProjectNow()

  656.             self.fProjectFilename = filenameOld

  657. 

  658.     @pyqtSlot()

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

  660.         if self.fProjectFilename and not saveAs:

  661.             return self.saveProjectNow()

  662. 

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

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

  665. 

  666.         if config_UseQt5:

  667.             filename = filename[0]

  668.         if not filename:

  669.             return

  670. 

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

  672.             filename += ".carxp"

  673. 

  674.         if self.fProjectFilename != filename:

  675.             self.fProjectFilename = filename

  676.             self.setProperWindowTitle()

  677. 

  678.         self.saveProjectNow()

  679. 

  680.     @pyqtSlot()

  681.     def slot_fileSaveAs(self):

  682.         self.slot_fileSave(True)

  683. 

  684.     @pyqtSlot()

  685.     def slot_loadProjectNow(self):

  686.         self.loadProjectNow()

  687. 

  688.     # --------------------------------------------------------------------------------------------------------

  689.     # Engine (menu actions)

  690. 

  691.     @pyqtSlot()

  692.     def slot_engineStart(self):

  693.         audioDriver = setEngineSettings(self.host)

  694.         firstInit   = self.fFirstEngineInit

  695. 

  696.         self.fFirstEngineInit = False

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

  698. 

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

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

  701.             return

  702. 

  703.         elif firstInit:

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

  705.             return

  706. 

  707.         audioError = self.host.get_last_error()

  708. 

  709.         if audioError:

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

  711.         else:

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

  713. 

  714.     @pyqtSlot()

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

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

  717. 

  718.         if self.fPluginCount == 0:

  719.             self.engineStopFinal()

  720.             return True

  721. 

  722.         if not forced:

  723.             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"

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

  725.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  726.             if ask != QMessageBox.Yes:

  727.                 return False

  728. 

  729.         return self.slot_engineStopTryAgain()

  730. 

  731.     @pyqtSlot()

  732.     def slot_engineStopTryAgain(self):

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

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

  735.             return False

  736. 

  737.         self.engineStopFinal()

  738.         return True

  739. 

  740.     def engineStopFinal(self):

  741.         self.killTimers()

  742.         self.removeAllPlugins()

  743. 

  744.         if self.host.is_engine_running():

  745.             self.host.remove_all_plugins()

  746. 

  747.             if self.host.engine_close():

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

  749.             else:

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

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

  752. 

  753.         if self.fCustomStopAction == 1:

  754.             self.close()

  755.         elif self.fCustomStopAction == 2:

  756.             self.slot_engineStart()

  757.             self.loadProjectNow()

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

  759. 

  760.         self.fCustomStopAction = 0

  761. 

  762.     # --------------------------------------------------------------------------------------------------------

  763.     # Engine (host callbacks)

  764. 

  765.     @pyqtSlot(int, int, str)

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

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

  768. 

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

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

  771. 

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

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

  774. 

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

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

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

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

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

  780.         else:

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

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

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

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

  785. 

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

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

  788. 

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

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

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

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

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

  794.             self.ui.w_transport.setEnabled(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  795. 

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

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

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

  799. 

  800.         self.refreshTransport(True)

  801. 

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

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

  804. 

  805.         self.startTimers()

  806. 

  807.     @pyqtSlot()

  808.     def slot_handleEngineStoppedCallback(self):

  809.         patchcanvas.clear()

  810.         self.killTimers()

  811. 

  812.         # just in case

  813.         self.removeAllPlugins()

  814. 

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

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

  817. 

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

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

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

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

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

  823. 

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

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

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

  827. 

  828.     @pyqtSlot(float)

  829.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  830.         self.fSampleRate = newSampleRate

  831.         self.refreshTransport(True)

  832. 

  833.     @pyqtSlot()

  834.     def slot_handleProjectLoadFinishedCallback(self):

  835.         self.fIsProjectLoading = False

  836.         self.projectLoadingFinished()

  837. 

  838.     # --------------------------------------------------------------------------------------------------------

  839.     # Plugins

  840. 

  841.     def removeAllPlugins(self):

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

  843.         patchcanvas.handleAllPluginsRemoved()

  844. 

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

  846.             pass

  847. 

  848.         self.clearSideStuff()

  849. 

  850.         for pitem in self.fPluginList:

  851.             if pitem is None:

  852.                 continue

  853. 

  854.             pitem.close()

  855.             del pitem

  856. 

  857.         self.fPluginCount = 0

  858.         self.fPluginList  = []

  859. 

  860.     # --------------------------------------------------------------------------------------------------------

  861.     # Plugins (menu actions)

  862. 

  863.     def showAddPluginDialog(self):

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

  865. 

  866.         if not dialog.exec_():

  867.             return

  868. 

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

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

  871.             return

  872. 

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

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

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

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

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

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

  879. 

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

  881. 

  882.     def showAddJackAppDialog(self):

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

  884. 

  885.         if not dialog.exec_():

  886.             return

  887. 

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

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

  890.             return

  891. 

  892.         return dialog.getCommandAndFlags()

  893. 

  894.     @pyqtSlot()

  895.     def showPluginActionsMenu(self):

  896.         menu = QMenu(self)

  897. 

  898.         if config_UseQt5:

  899.             menu.addSection("Plugins")

  900.         else:

  901.             # fake section

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

  903.             font = act.font()

  904.             font.setBold(True)

  905.             act.setFont(font)

  906.             act.setEnabled(False)

  907.             menu.addSeparator()

  908. 

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

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

  911. 

  912.         if config_UseQt5:

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

  914.         else:

  915.             # fake space

  916.             act  = menu.addAction(" ")

  917.             font = act.font()

  918.             font.setBold(True)

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

  920.             act.setEnabled(False)

  921. 

  922.             # fake section

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

  924.             font = act.font()

  925.             font.setBold(True)

  926.             act.setFont(font)

  927.             act.setEnabled(False)

  928.             menu.addSeparator()

  929. 

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

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

  932.         menu.addSeparator()

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

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

  935.         menu.addSeparator()

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

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

  938.         menu.addSeparator()

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

  940.         menu.addSeparator()

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

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

  943. 

  944.         menu.exec_(QCursor.pos())

  945. 

  946.     @pyqtSlot()

  947.     def slot_pluginAdd(self):

  948.         data = self.showAddPluginDialog()

  949. 

  950.         if data is None:

  951.             return

  952. 

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

  954. 

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

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

  957. 

  958.     @pyqtSlot()

  959.     def slot_pluginRemoveAll(self):

  960.         if self.fPluginCount == 0:

  961.             return

  962. 

  963.         # FIXME - this is not working

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

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

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

  967.             self.projectLoadingStarted()

  968. 

  969.             app = QApplication.instance()

  970.             app.processEvents()

  971. 

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

  973.                 self.host.remove_plugin(i)

  974.                 app.processEvents()

  975. 

  976.             self.projectLoadingFinished()

  977. 

  978.         self.fCurrentlyRemovingAllPlugins = True

  979.         ok = self.host.remove_all_plugins()

  980.         self.fCurrentlyRemovingAllPlugins = False

  981. 

  982.         if ok:

  983.             self.removeAllPlugins()

  984.         else:

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

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

  987. 

  988.         self.fCurrentlyRemovingAllPlugins = False

  989. 

  990.     @pyqtSlot()

  991.     def slot_jackAppAdd(self):

  992.         data = self.showAddJackAppDialog()

  993. 

  994.         if data is None:

  995.             return

  996. 

  997.         filename, name, label = data

  998. 

  999.         if not filename:

  1000.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1001.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1002.             return

  1003. 

  1004.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1005.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1006.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1007. 

  1008.     # --------------------------------------------------------------------------------------------------------

  1009.     # Plugins (macros)

  1010. 

  1011.     @pyqtSlot()

  1012.     def slot_pluginsEnable(self):

  1013.         if not self.host.is_engine_running():

  1014.             return

  1015. 

  1016.         for pitem in self.fPluginList:

  1017.             if pitem is None:

  1018.                 break

  1019. 

  1020.             pitem.getWidget().setActive(True, True, True)

  1021. 

  1022.     @pyqtSlot()

  1023.     def slot_pluginsDisable(self):

  1024.         if not self.host.is_engine_running():

  1025.             return

  1026. 

  1027.         for pitem in self.fPluginList:

  1028.             if pitem is None:

  1029.                 break

  1030. 

  1031.             pitem.getWidget().setActive(False, True, True)

  1032. 

  1033.     @pyqtSlot()

  1034.     def slot_pluginsVolume100(self):

  1035.         if not self.host.is_engine_running():

  1036.             return

  1037. 

  1038.         for pitem in self.fPluginList:

  1039.             if pitem is None:

  1040.                 break

  1041. 

  1042.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1043. 

  1044.     @pyqtSlot()

  1045.     def slot_pluginsMute(self):

  1046.         if not self.host.is_engine_running():

  1047.             return

  1048. 

  1049.         for pitem in self.fPluginList:

  1050.             if pitem is None:

  1051.                 break

  1052. 

  1053.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1054. 

  1055.     @pyqtSlot()

  1056.     def slot_pluginsWet100(self):

  1057.         if not self.host.is_engine_running():

  1058.             return

  1059. 

  1060.         for pitem in self.fPluginList:

  1061.             if pitem is None:

  1062.                 break

  1063. 

  1064.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1065. 

  1066.     @pyqtSlot()

  1067.     def slot_pluginsBypass(self):

  1068.         if not self.host.is_engine_running():

  1069.             return

  1070. 

  1071.         for pitem in self.fPluginList:

  1072.             if pitem is None:

  1073.                 break

  1074. 

  1075.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1076. 

  1077.     @pyqtSlot()

  1078.     def slot_pluginsCenter(self):

  1079.         if not self.host.is_engine_running():

  1080.             return

  1081. 

  1082.         for pitem in self.fPluginList:

  1083.             if pitem is None:

  1084.                 break

  1085. 

  1086.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1087.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1088.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1089. 

  1090.     @pyqtSlot()

  1091.     def slot_pluginsCompact(self):

  1092.         for pitem in self.fPluginList:

  1093.             if pitem is None:

  1094.                 break

  1095.             pitem.compact()

  1096. 

  1097.     @pyqtSlot()

  1098.     def slot_pluginsExpand(self):

  1099.         for pitem in self.fPluginList:

  1100.             if pitem is None:

  1101.                 break

  1102.             pitem.expand()

  1103. 

  1104.     # --------------------------------------------------------------------------------------------------------

  1105.     # Plugins (host callbacks)

  1106. 

  1107.     @pyqtSlot(int, str)

  1108.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1109.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1110. 

  1111.         self.fPluginList.append(pitem)

  1112.         self.fPluginCount += 1

  1113. 

  1114.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1115. 

  1116.     @pyqtSlot(int)

  1117.     def slot_handlePluginRemovedCallback(self, pluginId):

  1118.         patchcanvas.handlePluginRemoved(pluginId)

  1119. 

  1120.         if pluginId in self.fSelectedPlugins:

  1121.             self.clearSideStuff()

  1122. 

  1123.         pitem = self.getPluginItem(pluginId)

  1124. 

  1125.         self.fPluginCount -= 1

  1126.         self.fPluginList.pop(pluginId)

  1127.         self.ui.listWidget.takeItem(pluginId)

  1128. 

  1129.         if pitem is not None:

  1130.             pitem.close()

  1131.             del pitem

  1132. 

  1133.         # push all plugins 1 slot back

  1134.         for i in range(pluginId, self.fPluginCount):

  1135.             pitem = self.fPluginList[i]

  1136.             pitem.setPluginId(i)

  1137. 

  1138.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1139. 

  1140.     # --------------------------------------------------------------------------------------------------------

  1141.     # Canvas

  1142. 

  1143.     def clearSideStuff(self):

  1144.         self.scene.clearSelection()

  1145. 

  1146.         self.fSelectedPlugins = []

  1147. 

  1148.         self.ui.keyboard.allNotesOff(False)

  1149.         self.ui.scrollArea.setEnabled(False)

  1150. 

  1151.         self.fPeaksCleared = True

  1152.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1153.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1154.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1155.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1156. 

  1157.     def setupCanvas(self):

  1158.         pOptions = patchcanvas.options_t()

  1159.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1160.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1161.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1162.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1163.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1164. 

  1165.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1166.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1167.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1168.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1169.         else:

  1170.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1171. 

  1172.         pFeatures = patchcanvas.features_t()

  1173.         pFeatures.group_info   = False

  1174.         pFeatures.group_rename = False

  1175.         pFeatures.port_info    = False

  1176.         pFeatures.port_rename  = False

  1177.         pFeatures.handle_group_pos = True

  1178. 

  1179.         patchcanvas.setOptions(pOptions)

  1180.         patchcanvas.setFeatures(pFeatures)

  1181.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1182. 

  1183.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1184. 

  1185.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1186.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1187.             self.fCanvasHeight = int(tryCanvasSize[1])

  1188.         else:

  1189.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1190.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1191. 

  1192.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1193.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1194.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1195. 

  1196.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1197.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1198. 

  1199.     def updateCanvasInitialPos(self):

  1200.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1201.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1202.         patchcanvas.setInitialPos(x, y)

  1203. 

  1204.     def updateMiniCanvasLater(self):

  1205.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1206. 

  1207.     # --------------------------------------------------------------------------------------------------------

  1208.     # Canvas (menu actions)

  1209. 

  1210.     @pyqtSlot()

  1211.     def slot_canvasShowInternal(self):

  1212.         self.fExternalPatchbay = False

  1213.         self.ui.act_canvas_show_internal.blockSignals(True)

  1214.         self.ui.act_canvas_show_external.blockSignals(True)

  1215.         self.ui.act_canvas_show_internal.setChecked(True)

  1216.         self.ui.act_canvas_show_external.setChecked(False)

  1217.         self.ui.act_canvas_show_internal.blockSignals(False)

  1218.         self.ui.act_canvas_show_external.blockSignals(False)

  1219.         self.slot_canvasRefresh()

  1220. 

  1221.     @pyqtSlot()

  1222.     def slot_canvasShowExternal(self):

  1223.         self.fExternalPatchbay = True

  1224.         self.ui.act_canvas_show_internal.blockSignals(True)

  1225.         self.ui.act_canvas_show_external.blockSignals(True)

  1226.         self.ui.act_canvas_show_internal.setChecked(False)

  1227.         self.ui.act_canvas_show_external.setChecked(True)

  1228.         self.ui.act_canvas_show_internal.blockSignals(False)

  1229.         self.ui.act_canvas_show_external.blockSignals(False)

  1230.         self.slot_canvasRefresh()

  1231. 

  1232.     @pyqtSlot()

  1233.     def slot_canvasArrange(self):

  1234.         patchcanvas.arrange()

  1235. 

  1236.     @pyqtSlot()

  1237.     def slot_canvasRefresh(self):

  1238.         patchcanvas.clear()

  1239. 

  1240.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1241.             return

  1242. 

  1243.         if self.host.is_engine_running():

  1244.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1245. 

  1246.         self.updateMiniCanvasLater()

  1247. 

  1248.     @pyqtSlot()

  1249.     def slot_canvasZoomFit(self):

  1250.         self.scene.zoom_fit()

  1251. 

  1252.     @pyqtSlot()

  1253.     def slot_canvasZoomIn(self):

  1254.         self.scene.zoom_in()

  1255. 

  1256.     @pyqtSlot()

  1257.     def slot_canvasZoomOut(self):

  1258.         self.scene.zoom_out()

  1259. 

  1260.     @pyqtSlot()

  1261.     def slot_canvasZoomReset(self):

  1262.         self.scene.zoom_reset()

  1263. 

  1264.     @pyqtSlot()

  1265.     def slot_canvasSaveImage(self):

  1266.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1267. 

  1268.         if config_UseQt5:

  1269.             newPath = newPath[0]

  1270.         if not newPath:

  1271.             return

  1272. 

  1273.         self.scene.clearSelection()

  1274. 

  1275.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1276.             imgFormat = "JPG"

  1277.         elif newPath.lower().endswith((".png",)):

  1278.             imgFormat = "PNG"

  1279.         else:

  1280.             # File-dialog may not auto-add the extension

  1281.             imgFormat = "PNG"

  1282.             newPath  += ".png"

  1283. 

  1284.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1285.         painter = QPainter(self.fExportImage)

  1286.         painter.save()

  1287.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1288.         painter.setRenderHint(QPainter.TextAntialiasing)

  1289.         self.scene.render(painter)

  1290.         self.fExportImage.save(newPath, imgFormat, 100)

  1291.         painter.restore()

  1292. 

  1293.     # --------------------------------------------------------------------------------------------------------

  1294.     # Canvas (canvas callbacks)

  1295. 

  1296.     @pyqtSlot(int, int, QPointF)

  1297.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1298.         self.updateMiniCanvasLater()

  1299. 

  1300.     @pyqtSlot(float)

  1301.     def slot_canvasScaleChanged(self, scale):

  1302.         self.ui.miniCanvasPreview.setViewScale(scale)

  1303. 

  1304.     @pyqtSlot(list)

  1305.     def slot_canvasPluginSelected(self, pluginList):

  1306.         self.ui.keyboard.allNotesOff(False)

  1307.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1308.         self.fSelectedPlugins = pluginList

  1309. 

  1310.     # --------------------------------------------------------------------------------------------------------

  1311.     # Canvas (host callbacks)

  1312. 

  1313.     @pyqtSlot(int, int, int, str)

  1314.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1315.         pcSplit = patchcanvas.SPLIT_UNDEF

  1316.         pcIcon  = patchcanvas.ICON_APPLICATION

  1317. 

  1318.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1319.             pcIcon = patchcanvas.ICON_PLUGIN

  1320.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1321.             pcIcon = patchcanvas.ICON_HARDWARE

  1322.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1323.             pass

  1324.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1325.             pcIcon = patchcanvas.ICON_DISTRHO

  1326.         elif clientIcon == PATCHBAY_ICON_FILE:

  1327.             pcIcon = patchcanvas.ICON_FILE

  1328. 

  1329.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1330. 

  1331.         self.updateMiniCanvasLater()

  1332. 

  1333.         if pluginId < 0:

  1334.             return

  1335.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1336.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1337.             return

  1338. 

  1339.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1340.             hasCustomUI = False

  1341.         else:

  1342.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1343. 

  1344.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1345. 

  1346.     @pyqtSlot(int)

  1347.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1348.         patchcanvas.removeGroup(clientId)

  1349.         self.updateMiniCanvasLater()

  1350. 

  1351.     @pyqtSlot(int, str)

  1352.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1353.         patchcanvas.renameGroup(clientId, newClientName)

  1354.         self.updateMiniCanvasLater()

  1355. 

  1356.     @pyqtSlot(int, int, int)

  1357.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1358.         pcIcon = patchcanvas.ICON_APPLICATION

  1359. 

  1360.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1361.             pcIcon = patchcanvas.ICON_PLUGIN

  1362.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1363.             pcIcon = patchcanvas.ICON_HARDWARE

  1364.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1365.             pass

  1366.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1367.             pcIcon = patchcanvas.ICON_DISTRHO

  1368.         elif clientIcon == PATCHBAY_ICON_FILE:

  1369.             pcIcon = patchcanvas.ICON_FILE

  1370. 

  1371.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1372.         self.updateMiniCanvasLater()

  1373. 

  1374.         if pluginId < 0:

  1375.             return

  1376.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1377.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1378.             return

  1379. 

  1380.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1381.             hasCustomUI = False

  1382.         else:

  1383.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1384. 

  1385.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1386. 

  1387.     @pyqtSlot(int, int, int, str)

  1388.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1389.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1390.             portMode = patchcanvas.PORT_MODE_INPUT

  1391.         else:

  1392.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1393. 

  1394.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1395.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1396.             isAlternate = False

  1397.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1398.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1399.             isAlternate = True

  1400.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1401.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1402.             isAlternate = False

  1403.         else:

  1404.             portType    = patchcanvas.PORT_TYPE_NULL

  1405.             isAlternate = False

  1406. 

  1407.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1408.         self.updateMiniCanvasLater()

  1409. 

  1410.     @pyqtSlot(int, int)

  1411.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1412.         patchcanvas.removePort(groupId, portId)

  1413.         self.updateMiniCanvasLater()

  1414. 

  1415.     @pyqtSlot(int, int, str)

  1416.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1417.         patchcanvas.renamePort(groupId, portId, newPortName)

  1418.         self.updateMiniCanvasLater()

  1419. 

  1420.     @pyqtSlot(int, int, int, int, int)

  1421.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1422.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1423.         self.updateMiniCanvasLater()

  1424. 

  1425.     @pyqtSlot(int, int, int)

  1426.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1427.         patchcanvas.disconnectPorts(connectionId)

  1428.         self.updateMiniCanvasLater()

  1429. 

  1430.     # --------------------------------------------------------------------------------------------------------

  1431.     # Settings

  1432. 

  1433.     def saveSettings(self):

  1434.         settings = QSettings()

  1435. 

  1436.         settings.setValue("Geometry", self.saveGeometry())

  1437. 

  1438.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1439. 

  1440.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1441. 

  1442.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1443. 

  1444.         diskFolders = []

  1445. 

  1446.         for i in range(self.ui.cb_disk.count()):

  1447.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1448. 

  1449.         settings.setValue("DiskFolders", diskFolders)

  1450. 

  1451.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1452.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1453.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1454.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1455. 

  1456.     def loadSettings(self, firstTime):

  1457.         settings = QSettings()

  1458. 

  1459.         if firstTime:

  1460.             self.restoreGeometry(settings.value("Geometry", b""))

  1461. 

  1462.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1463.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1464.             self.ui.toolBar.setEnabled(showToolbar)

  1465.             self.ui.toolBar.setVisible(showToolbar)

  1466. 

  1467.             #if settings.contains("SplitterState"):

  1468.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1469.             #else:

  1470.                 #self.ui.splitter.setSizes([210, 99999])

  1471. 

  1472.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1473.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1474.             self.ui.dockWidget.setEnabled(showSidePanel)

  1475.             self.ui.dockWidget.setVisible(showSidePanel)

  1476. 

  1477.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1478. 

  1479.             self.ui.cb_disk.setItemData(0, HOME)

  1480. 

  1481.             for i in range(len(diskFolders)):

  1482.                 if i == 0: continue

  1483.                 folder = diskFolders[i]

  1484.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1485. 

  1486.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1487.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1488. 

  1489.             showMeters = settings.value("ShowMeters", False, type=bool)

  1490.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1491.             self.ui.peak_in.setVisible(showMeters)

  1492.             self.ui.peak_out.setVisible(showMeters)

  1493. 

  1494.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1495.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1496.             self.ui.scrollArea.setVisible(showKeyboard)

  1497. 

  1498.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1499. 

  1500.         # TODO - complete this

  1501. 

  1502.         self.fSavedSettings = {

  1503.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1504.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1505.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1506.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1507.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1508.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1509.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1510.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1511.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1512.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1513.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1514.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1515.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1516.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1517.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1518.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1519.         }

  1520. 

  1521.         self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1522.                                                        CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1523. 

  1524.         if not (self.host.isControl or self.host.isPlugin):

  1525.             if settings.value(CARLA_KEY_EXPERIMENTAL_TRANSPORT, CARLA_DEFAULT_EXPERIMENTAL_TRANSPORT, type=bool):

  1526.                 if self.ui.cb_transport_jack.isChecked():

  1527.                     transportMode = ENGINE_TRANSPORT_MODE_JACK

  1528.                 else:

  1529.                     transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  1530.                 transportExtra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1531.             else:

  1532.                 # Stop transport if becoming disabled

  1533.                 if self.ui.w_transport.isEnabled() and self.host.is_engine_running():

  1534.                     self.host.transport_pause()

  1535.                     self.host.transport_relocate(0)

  1536.                     self.host.transport_pause()

  1537. 

  1538.                 transportMode  = ENGINE_TRANSPORT_MODE_DISABLED

  1539.                 transportExtra = ""

  1540. 

  1541.             self.ui.w_transport.setEnabled(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1542.             self.host.transportMode = transportMode

  1543.             self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, transportMode, transportExtra)

  1544. 

  1545.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1546. 

  1547.         setEngineSettings(self.host)

  1548.         self.restartTimersIfNeeded()

  1549. 

  1550.     # --------------------------------------------------------------------------------------------------------

  1551.     # Settings (helpers)

  1552. 

  1553.     @pyqtSlot()

  1554.     def slot_restoreCanvasScrollbarValues(self):

  1555.         settings = QSettings()

  1556.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1557.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1558. 

  1559.     # --------------------------------------------------------------------------------------------------------

  1560.     # Settings (menu actions)

  1561. 

  1562.     @pyqtSlot(bool)

  1563.     def slot_showSidePanel(self, yesNo):

  1564.         self.ui.dockWidget.setEnabled(yesNo)

  1565.         self.ui.dockWidget.setVisible(yesNo)

  1566. 

  1567.     @pyqtSlot(bool)

  1568.     def slot_showToolbar(self, yesNo):

  1569.         self.ui.toolBar.setEnabled(yesNo)

  1570.         self.ui.toolBar.setVisible(yesNo)

  1571. 

  1572.     @pyqtSlot(bool)

  1573.     def slot_showCanvasMeters(self, yesNo):

  1574.         self.ui.peak_in.setVisible(yesNo)

  1575.         self.ui.peak_out.setVisible(yesNo)

  1576.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1577. 

  1578.     @pyqtSlot(bool)

  1579.     def slot_showCanvasKeyboard(self, yesNo):

  1580.         self.ui.scrollArea.setVisible(yesNo)

  1581.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1582. 

  1583.     @pyqtSlot()

  1584.     def slot_configureCarla(self):

  1585.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1586.         if not dialog.exec_():

  1587.             return

  1588. 

  1589.         self.loadSettings(False)

  1590. 

  1591.         patchcanvas.clear()

  1592. 

  1593.         self.setupCanvas()

  1594.         self.slot_miniCanvasCheckAll()

  1595. 

  1596.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1597.             pass

  1598.         elif self.host.is_engine_running():

  1599.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1600. 

  1601.         for pitem in self.fPluginList:

  1602.             if pitem is None:

  1603.                 break

  1604.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1605.             pitem.recreateWidget()

  1606. 

  1607.     # --------------------------------------------------------------------------------------------------------

  1608.     # About (menu actions)

  1609. 

  1610.     @pyqtSlot()

  1611.     def slot_aboutCarla(self):

  1612.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1613. 

  1614.     @pyqtSlot()

  1615.     def slot_aboutQt(self):

  1616.         QApplication.instance().aboutQt()

  1617. 

  1618.     # --------------------------------------------------------------------------------------------------------

  1619.     # Disk (menu actions)

  1620. 

  1621.     @pyqtSlot(int)

  1622.     def slot_diskFolderChanged(self, index):

  1623.         if index < 0:

  1624.             return

  1625.         elif index == 0:

  1626.             filename = HOME

  1627.             self.ui.b_disk_remove.setEnabled(False)

  1628.         else:

  1629.             filename = self.ui.cb_disk.itemData(index)

  1630.             self.ui.b_disk_remove.setEnabled(True)

  1631. 

  1632.         self.fDirModel.setRootPath(filename)

  1633.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1634. 

  1635.     @pyqtSlot()

  1636.     def slot_diskFolderAdd(self):

  1637.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1638. 

  1639.         if newPath:

  1640.             if newPath[-1] == os.sep:

  1641.                 newPath = newPath[:-1]

  1642.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1643.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1644.             self.ui.b_disk_remove.setEnabled(True)

  1645. 

  1646.     @pyqtSlot()

  1647.     def slot_diskFolderRemove(self):

  1648.         index = self.ui.cb_disk.currentIndex()

  1649. 

  1650.         if index <= 0:

  1651.             return

  1652. 

  1653.         self.ui.cb_disk.removeItem(index)

  1654. 

  1655.         if self.ui.cb_disk.currentIndex() == 0:

  1656.             self.ui.b_disk_remove.setEnabled(False)

  1657. 

  1658.     @pyqtSlot(QModelIndex)

  1659.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1660.         filename = self.fDirModel.filePath(modelIndex)

  1661. 

  1662.         if not self.ui.listWidget.isDragUrlValid(filename):

  1663.             return

  1664. 

  1665.         if not self.host.load_file(filename):

  1666.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1667.                              self.tr("Failed to load file"),

  1668.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1669. 

  1670.     # --------------------------------------------------------------------------------------------------------

  1671.     # Transport

  1672. 

  1673.     def refreshTransport(self, forced = False):

  1674.         if not self.isVisible():

  1675.             return

  1676.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1677.             return

  1678. 

  1679.         timeInfo = self.host.get_transport_info()

  1680.         playing  = timeInfo['playing']

  1681.         frame    = timeInfo['frame']

  1682.         bpm      = timeInfo['bpm']

  1683. 

  1684.         if playing != self.fLastTransportState or forced:

  1685.             if playing:

  1686.                 icon = getIcon("media-playback-pause")

  1687.                 self.ui.b_transport_play.setChecked(True)

  1688.                 self.ui.b_transport_play.setIcon(icon)

  1689.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1690.             else:

  1691.                 icon = getIcon("media-playback-start")

  1692.                 self.ui.b_transport_play.setChecked(False)

  1693.                 self.ui.b_transport_play.setIcon(icon)

  1694.                 #self.ui.b_play.setText(self.tr("&Play"))

  1695. 

  1696.             self.fLastTransportState = playing

  1697. 

  1698.         if frame != self.fLastTransportFrame or forced:

  1699.             self.fLastTransportFrame = frame

  1700. 

  1701.             time = frame / self.fSampleRate

  1702.             secs =  time % 60

  1703.             mins = (time / 60) % 60

  1704.             hrs  = (time / 3600) % 60

  1705.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1706. 

  1707.             frame1 =  frame % 1000

  1708.             frame2 = (frame / 1000) % 1000

  1709.             frame3 = (frame / 1000000) % 1000

  1710.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1711. 

  1712.             bar  = timeInfo['bar']

  1713.             beat = timeInfo['beat']

  1714.             tick = timeInfo['tick']

  1715.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1716. 

  1717.         if bpm != self.fLastTransportBPM or forced:

  1718.             self.fLastTransportBPM = bpm

  1719. 

  1720.             if bpm > 0.0:

  1721.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1722.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1723.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1724.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1725.             else:

  1726.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1727. 

  1728.     # --------------------------------------------------------------------------------------------------------

  1729.     # Transport (menu actions)

  1730. 

  1731.     @pyqtSlot(bool)

  1732.     def slot_transportPlayPause(self, toggled):

  1733.         if self.host.isPlugin or not self.host.is_engine_running():

  1734.             return

  1735. 

  1736.         if toggled:

  1737.             self.host.transport_play()

  1738.         else:

  1739.             self.host.transport_pause()

  1740. 

  1741.         self.refreshTransport()

  1742. 

  1743.     @pyqtSlot()

  1744.     def slot_transportStop(self):

  1745.         if self.host.isPlugin or not self.host.is_engine_running():

  1746.             return

  1747. 

  1748.         self.host.transport_pause()

  1749.         self.host.transport_relocate(0)

  1750. 

  1751.         self.refreshTransport()

  1752. 

  1753.     @pyqtSlot()

  1754.     def slot_transportBackwards(self):

  1755.         if self.host.isPlugin or not self.host.is_engine_running():

  1756.             return

  1757. 

  1758.         newFrame = self.host.get_current_transport_frame() - 100000

  1759. 

  1760.         if newFrame < 0:

  1761.             newFrame = 0

  1762. 

  1763.         self.host.transport_relocate(newFrame)

  1764. 

  1765.     @pyqtSlot(float)

  1766.     def slot_transportBpmChanged(self, newValue):

  1767.         self.host.transport_bpm(newValue)

  1768. 

  1769.     @pyqtSlot()

  1770.     def slot_transportForwards(self):

  1771.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1772.             return

  1773. 

  1774.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1775.         self.host.transport_relocate(newFrame)

  1776. 

  1777.     @pyqtSlot(bool)

  1778.     def slot_transportJackEnabled(self, clicked):

  1779.         if not self.host.is_engine_running():

  1780.             return

  1781.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1782.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1783.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1784. 

  1785.     @pyqtSlot(bool)

  1786.     def slot_transportLinkEnabled(self, clicked):

  1787.         if not self.host.is_engine_running():

  1788.             return

  1789.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1790.         extra = ":link:" if clicked else ""

  1791.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1792. 

  1793.     # --------------------------------------------------------------------------------------------------------

  1794.     # Canvas scrollbars

  1795. 

  1796.     @pyqtSlot(int)

  1797.     def slot_horizontalScrollBarChanged(self, value):

  1798.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1799.         if maximum == 0:

  1800.             xp = 0

  1801.         else:

  1802.             xp = float(value) / maximum

  1803.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1804.         self.updateCanvasInitialPos()

  1805. 

  1806.     @pyqtSlot(int)

  1807.     def slot_verticalScrollBarChanged(self, value):

  1808.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1809.         if maximum == 0:

  1810.             yp = 0

  1811.         else:

  1812.             yp = float(value) / maximum

  1813.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1814.         self.updateCanvasInitialPos()

  1815. 

  1816.     # --------------------------------------------------------------------------------------------------------

  1817.     # Canvas keyboard

  1818. 

  1819.     @pyqtSlot(int)

  1820.     def slot_noteOn(self, note):

  1821.         for pluginId in self.fSelectedPlugins:

  1822.             self.host.send_midi_note(pluginId, 0, note, 100)

  1823. 

  1824.             pedit = self.getPluginEditDialog(pluginId)

  1825.             pedit.noteOn(0, note, 100)

  1826. 

  1827.     @pyqtSlot(int)

  1828.     def slot_noteOff(self, note):

  1829.         for pluginId in self.fSelectedPlugins:

  1830.             self.host.send_midi_note(pluginId, 0, note, 0)

  1831. 

  1832.             pedit = self.getPluginEditDialog(pluginId)

  1833.             pedit.noteOff(0, note)

  1834. 

  1835.     # --------------------------------------------------------------------------------------------------------

  1836.     # Canvas keyboard (host callbacks)

  1837. 

  1838.     @pyqtSlot(int, int, int, int)

  1839.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1840.         if pluginId in self.fSelectedPlugins:

  1841.             self.ui.keyboard.sendNoteOn(note, False)

  1842. 

  1843.     @pyqtSlot(int, int, int)

  1844.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1845.         if pluginId in self.fSelectedPlugins:

  1846.             self.ui.keyboard.sendNoteOff(note, False)

  1847. 

  1848.     # --------------------------------------------------------------------------------------------------------

  1849. 

  1850.     @pyqtSlot(int)

  1851.     def slot_handleUpdateCallback(self, pluginId):

  1852.         pitem = self.getPluginItem(pluginId)

  1853. 

  1854.         if pitem is None:

  1855.             return

  1856. 

  1857.         wasCompacted = pitem.isCompacted()

  1858.         isCompacted  = wasCompacted

  1859. 

  1860.         for i in range(self.host.get_custom_data_count(pluginId)):

  1861.             cdata = self.host.get_custom_data(pluginId, i)

  1862. 

  1863.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1864.                 isCompacted = bool(cdata['value'] == "true")

  1865.                 break

  1866.         else:

  1867.             return

  1868. 

  1869.         if wasCompacted == isCompacted:

  1870.             return

  1871. 

  1872.         pitem.recreateWidget(True)

  1873. 

  1874.     # --------------------------------------------------------------------------------------------------------

  1875.     # MiniCanvas stuff

  1876. 

  1877.     @pyqtSlot()

  1878.     def slot_miniCanvasCheckAll(self):

  1879.         self.slot_miniCanvasCheckSize()

  1880.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1881.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1882. 

  1883.     @pyqtSlot()

  1884.     def slot_miniCanvasCheckSize(self):

  1885.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1886.             return

  1887. 

  1888.         currentIndex = self.ui.tabWidget.currentIndex()

  1889. 

  1890.         if currentIndex == 1:

  1891.             width  = self.ui.graphicsView.width()

  1892.             height = self.ui.graphicsView.height()

  1893.         else:

  1894.             self.ui.tabWidget.blockSignals(True)

  1895.             self.ui.tabWidget.setCurrentIndex(1)

  1896.             width  = self.ui.graphicsView.width()

  1897.             height = self.ui.graphicsView.height()

  1898.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1899.             self.ui.tabWidget.blockSignals(False)

  1900. 

  1901.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1902. 

  1903.     @pyqtSlot(float, float)

  1904.     def slot_miniCanvasMoved(self, xp, yp):

  1905.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1906.         vsb = self.ui.graphicsView.verticalScrollBar()

  1907.         hsb.setValue(xp * hsb.maximum())

  1908.         vsb.setValue(yp * vsb.maximum())

  1909.         self.updateCanvasInitialPos()

  1910. 

  1911.     # --------------------------------------------------------------------------------------------------------

  1912.     # Timers

  1913. 

  1914.     def startTimers(self):

  1915.         if self.fIdleTimerFast == 0:

  1916.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1917. 

  1918.         if self.fIdleTimerSlow == 0:

  1919.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1920. 

  1921.     def restartTimersIfNeeded(self):

  1922.         if self.fIdleTimerFast != 0:

  1923.             self.killTimer(self.fIdleTimerFast)

  1924.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1925. 

  1926.         if self.fIdleTimerSlow != 0:

  1927.             self.killTimer(self.fIdleTimerSlow)

  1928.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1929. 

  1930.     def killTimers(self):

  1931.         if self.fIdleTimerFast != 0:

  1932.             self.killTimer(self.fIdleTimerFast)

  1933.             self.fIdleTimerFast = 0

  1934. 

  1935.         if self.fIdleTimerSlow != 0:

  1936.             self.killTimer(self.fIdleTimerSlow)

  1937.             self.fIdleTimerSlow = 0

  1938. 

  1939.     # --------------------------------------------------------------------------------------------------------

  1940.     # Misc

  1941. 

  1942.     @pyqtSlot(int)

  1943.     def slot_tabChanged(self, index):

  1944.         if index != 1:

  1945.             return

  1946. 

  1947.         self.ui.graphicsView.setFocus()

  1948. 

  1949.     @pyqtSlot(int)

  1950.     def slot_handleReloadAllCallback(self, pluginId):

  1951.         if pluginId >= self.fPluginCount:

  1952.             return

  1953. 

  1954.         pitem = self.fPluginList[pluginId]

  1955.         if pitem is None:

  1956.             return

  1957. 

  1958.         pitem.recreateWidget()

  1959. 

  1960.     # --------------------------------------------------------------------------------------------------------

  1961. 

  1962.     @pyqtSlot(int, int, str)

  1963.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  1964.         # Error

  1965.         if value1 == 0:

  1966.             pass

  1967. 

  1968.         # Reply

  1969.         elif value1 == 1:

  1970.             self.fFirstEngineInit    = False

  1971.             self.fSessionManagerName = valueStr

  1972.             self.setProperWindowTitle()

  1973. 

  1974.         # Open

  1975.         elif value1 == 2:

  1976.             self.fClientName      = os.path.basename(valueStr)

  1977.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  1978.             self.setProperWindowTitle()

  1979. 

  1980.             self.fCustomStopAction = 2

  1981.             self.slot_engineStop(True)

  1982.             return

  1983. 

  1984.         # Save

  1985.         elif value1 == 3:

  1986.             self.saveProjectNow()

  1987. 

  1988.         # Session is Loaded

  1989.         elif value1 == 4:

  1990.             pass

  1991. 

  1992.         # Show Optional Gui

  1993.         elif value1 == 5:

  1994.             self.show()

  1995. 

  1996.         # Hide Optional Gui

  1997.         elif value1 == 6:

  1998.             self.hide()

  1999. 

  2000.         self.host.nsm_ready(value1)

  2001. 

  2002.     # --------------------------------------------------------------------------------------------------------

  2003. 

  2004.     def fixLogText(self, text):

  2005.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2006. 

  2007.     @pyqtSlot(int, int, int, float, str)

  2008.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  2009.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2010. 

  2011.     @pyqtSlot(str)

  2012.     def slot_handleInfoCallback(self, info):

  2013.         QMessageBox.information(self, "Information", info)

  2014. 

  2015.     @pyqtSlot(str)

  2016.     def slot_handleErrorCallback(self, error):

  2017.         QMessageBox.critical(self, "Error", error)

  2018. 

  2019.     @pyqtSlot()

  2020.     def slot_handleQuitCallback(self):

  2021.         pass # TODO

  2022. 

  2023.     # --------------------------------------------------------------------------------------------------------

  2024. 

  2025.     @pyqtSlot()

  2026.     def slot_handleSIGUSR1(self):

  2027.         print("Got SIGUSR1 -> Saving project now")

  2028.         self.slot_fileSave()

  2029. 

  2030.     @pyqtSlot()

  2031.     def slot_handleSIGTERM(self):

  2032.         print("Got SIGTERM -> Closing now")

  2033.         self.fCustomStopAction = 1

  2034.         self.slot_engineStop(True)

  2035. 

  2036.     # --------------------------------------------------------------------------------------------------------

  2037.     # Internal stuff

  2038. 

  2039.     def getExtraPtr(self, plugin):

  2040.         ptype = plugin['type']

  2041. 

  2042.         if ptype == PLUGIN_LADSPA:

  2043.             uniqueId = plugin['uniqueId']

  2044. 

  2045.             self.maybeLoadRDFs()

  2046. 

  2047.             for rdfItem in self.fLadspaRdfList:

  2048.                 if rdfItem.UniqueID == uniqueId:

  2049.                     return pointer(rdfItem)

  2050. 

  2051.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  2052.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2053.                 return self._true

  2054. 

  2055.         return None

  2056. 

  2057.     def maybeLoadRDFs(self):

  2058.         if not self.fLadspaRdfNeedsUpdate:

  2059.             return

  2060. 

  2061.         self.fLadspaRdfNeedsUpdate = False

  2062.         self.fLadspaRdfList = []

  2063. 

  2064.         if not haveLRDF:

  2065.             return

  2066. 

  2067.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2068.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2069. 

  2070.         if os.path.exists(frLadspaFile):

  2071.             frLadspa = open(frLadspaFile, 'r')

  2072. 

  2073.             try:

  2074.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2075.             except:

  2076.                 pass

  2077. 

  2078.             frLadspa.close()

  2079. 

  2080.     # --------------------------------------------------------------------------------------------------------

  2081. 

  2082.     def getPluginItem(self, pluginId):

  2083.         if pluginId >= self.fPluginCount:

  2084.             return None

  2085. 

  2086.         pitem = self.fPluginList[pluginId]

  2087.         if pitem is None:

  2088.             return None

  2089.         #if False:

  2090.             #return CarlaRackItem(self, 0, False)

  2091. 

  2092.         return pitem

  2093. 

  2094.     def getPluginEditDialog(self, pluginId):

  2095.         if pluginId >= self.fPluginCount:

  2096.             return None

  2097. 

  2098.         pitem = self.fPluginList[pluginId]

  2099.         if pitem is None:

  2100.             return None

  2101.         if False:

  2102.             return PluginEdit(self, self.host, 0)

  2103. 

  2104.         return pitem.getEditDialog()

  2105. 

  2106.     def getPluginSlotWidget(self, pluginId):

  2107.         if pluginId >= self.fPluginCount:

  2108.             return None

  2109. 

  2110.         pitem = self.fPluginList[pluginId]

  2111.         if pitem is None:

  2112.             return None

  2113.         #if False:

  2114.             #return AbstractPluginSlot()

  2115. 

  2116.         return pitem.getWidget()

  2117. 

  2118.     # --------------------------------------------------------------------------------------------------------

  2119. 

  2120.     def waitForPendingEvents(self):

  2121.         pass

  2122. 

  2123.     # --------------------------------------------------------------------------------------------------------

  2124.     # show/hide event

  2125. 

  2126.     def showEvent(self, event):

  2127.         self.refreshTransport(True)

  2128.         QMainWindow.showEvent(self, event)

  2129. 

  2130.         # set our gui as parent for all plugins UIs

  2131.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2132.             if MACOS:

  2133.                 nsViewPtr = int(self.winId())

  2134.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2135.             else:

  2136.                 winIdStr = "%x" % int(self.winId())

  2137.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2138. 

  2139.     def hideEvent(self, event):

  2140.         # disable parent

  2141.         if not (self.host.isControl or self.host.isPlugin):

  2142.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2143. 

  2144.         QMainWindow.hideEvent(self, event)

  2145. 

  2146.     # --------------------------------------------------------------------------------------------------------

  2147.     # resize event

  2148. 

  2149.     def fixCanvasPreviewSize(self):

  2150.         self.ui.patchbay.resize(self.ui.rack.size())

  2151.         self.slot_miniCanvasCheckSize()

  2152. 

  2153.     def resizeEvent(self, event):

  2154.         QMainWindow.resizeEvent(self, event)

  2155. 

  2156.         if self.ui.tabWidget.currentIndex() != 1:

  2157.             size = self.ui.rack.size()

  2158.             self.ui.patchbay.resize(size)

  2159. 

  2160.         self.slot_miniCanvasCheckSize()

  2161. 

  2162.     # --------------------------------------------------------------------------------------------------------

  2163.     # timer event

  2164. 

  2165.     def idleFast(self):

  2166.         self.host.engine_idle()

  2167.         self.refreshTransport()

  2168. 

  2169.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2170.             return

  2171. 

  2172.         for pitem in self.fPluginList:

  2173.             if pitem is None:

  2174.                 break

  2175. 

  2176.             pitem.getWidget().idleFast()

  2177. 

  2178.         for pluginId in self.fSelectedPlugins:

  2179.             self.fPeaksCleared = False

  2180.             if self.ui.peak_in.isVisible():

  2181.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2182.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2183.             if self.ui.peak_out.isVisible():

  2184.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2185.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2186.             return

  2187. 

  2188.         if self.fPeaksCleared:

  2189.             return

  2190. 

  2191.         self.fPeaksCleared = True

  2192.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2193.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2194.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2195.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2196. 

  2197.     def idleSlow(self):

  2198.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2199.             return

  2200. 

  2201.         for pitem in self.fPluginList:

  2202.             if pitem is None:

  2203.                 break

  2204. 

  2205.             pitem.getWidget().idleSlow()

  2206. 

  2207.     def timerEvent(self, event):

  2208.         if event.timerId() == self.fIdleTimerFast:

  2209.             self.idleFast()

  2210. 

  2211.         elif event.timerId() == self.fIdleTimerSlow:

  2212.             self.idleSlow()

  2213. 

  2214.         QMainWindow.timerEvent(self, event)

  2215. 

  2216.     # --------------------------------------------------------------------------------------------------------

  2217.     # paint event

  2218. 

  2219.     #def paintEvent(self, event):

  2220.         #QMainWindow.paintEvent(self, event)

  2221. 

  2222.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2223.             #return

  2224. 

  2225.         #painter = QPainter(self)

  2226.         #painter.setBrush(QColor(36, 36, 36))

  2227.         #painter.setPen(QColor(62, 62, 62))

  2228.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2229. 

  2230.     # --------------------------------------------------------------------------------------------------------

  2231.     # close event

  2232. 

  2233.     def closeEvent(self, event):

  2234.         self.killTimers()

  2235.         self.saveSettings()

  2236. 

  2237.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2238.             if not self.slot_engineStop(True):

  2239.                 self.fCustomStopAction = 1

  2240.                 event.ignore()

  2241.                 return

  2242. 

  2243.         QMainWindow.closeEvent(self, event)

  2244. 

  2245. # ------------------------------------------------------------------------------------------------

  2246. # Canvas callback

  2247. 

  2248. def canvasCallback(action, value1, value2, valueStr):

  2249.     host = gCarla.gui.host

  2250. 

  2251.     if action == patchcanvas.ACTION_GROUP_INFO:

  2252.         pass

  2253. 

  2254.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2255.         pass

  2256. 

  2257.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2258.         groupId = value1

  2259.         patchcanvas.splitGroup(groupId)

  2260.         gCarla.gui.updateMiniCanvasLater()

  2261. 

  2262.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2263.         groupId = value1

  2264.         patchcanvas.joinGroup(groupId)

  2265.         gCarla.gui.updateMiniCanvasLater()

  2266. 

  2267.     elif action == patchcanvas.ACTION_PORT_INFO:

  2268.         pass

  2269. 

  2270.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2271.         pass

  2272. 

  2273.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2274.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2275. 

  2276.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2277.             print("Connection failed:", host.get_last_error())

  2278. 

  2279.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2280.         connectionId = value1

  2281. 

  2282.         if not host.patchbay_disconnect(connectionId):

  2283.             print("Disconnect failed:", host.get_last_error())

  2284. 

  2285.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2286.         pluginId = value1

  2287. 

  2288.         if not host.clone_plugin(pluginId):

  2289.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2290.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2291. 

  2292.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2293.         pluginId = value1

  2294.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2295. 

  2296.         if pwidget is not None:

  2297.             pwidget.showEditDialog()

  2298. 

  2299.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2300.         pluginId = value1

  2301.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2302. 

  2303.         if pwidget is not None:

  2304.             pwidget.showRenameDialog()

  2305. 

  2306.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2307.         pluginId = value1

  2308.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2309. 

  2310.         if pwidget is not None:

  2311.             pwidget.showReplaceDialog()

  2312. 

  2313.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2314.         pluginId = value1

  2315. 

  2316.         if not host.remove_plugin(pluginId):

  2317.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2318.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2319. 

  2320.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2321.         pluginId = value1

  2322.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2323. 

  2324.         if pwidget is not None:

  2325.             pwidget.showCustomUI()

  2326. 

  2327.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2328.         gCarla.gui.showPluginActionsMenu()

  2329. 

  2330. # ------------------------------------------------------------------------------------------------------------

  2331. # Engine callback

  2332. 

  2333. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2334.     # kdevelop likes this :)

  2335.     if False: host = CarlaHostNull()

  2336. 

  2337.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2338.         host.processMode   = value1

  2339.         host.transportMode = value2

  2340.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2341.         host.processMode   = value1

  2342.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2343.         host.transportMode = value1

  2344. 

  2345.     valueStr = charPtrToString(valueStr)

  2346. 

  2347.     if action == ENGINE_CALLBACK_DEBUG:

  2348.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2349.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2350.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2351.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2352.         host.PluginRemovedCallback.emit(pluginId)

  2353.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2354.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2355.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2356.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2357.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2358.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2359.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2360.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2361.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2362.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2363.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2364.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2365.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2366.         host.ProgramChangedCallback.emit(pluginId, value1)

  2367.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2368.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2369.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2370.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2371.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2372.         host.UiStateChangedCallback.emit(pluginId, value1)

  2373.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2374.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2375.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2376.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2377.     elif action == ENGINE_CALLBACK_UPDATE:

  2378.         host.UpdateCallback.emit(pluginId)

  2379.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2380.         host.ReloadInfoCallback.emit(pluginId)

  2381.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2382.         host.ReloadParametersCallback.emit(pluginId)

  2383.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2384.         host.ReloadProgramsCallback.emit(pluginId)

  2385.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2386.         host.ReloadAllCallback.emit(pluginId)

  2387.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2388.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2389.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2390.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2391.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2392.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2393.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2394.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2395.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2396.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2397.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2398.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2399.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2400.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2401.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2402.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2403.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2404.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2405.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2406.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2407.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  2408.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2409.         host.EngineStoppedCallback.emit()

  2410.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2411.         host.ProcessModeChangedCallback.emit(value1)

  2412.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2413.         host.TransportModeChangedCallback.emit(value1)

  2414.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2415.         host.BufferSizeChangedCallback.emit(value1)

  2416.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2417.         host.SampleRateChangedCallback.emit(value3)

  2418.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2419.         host.ProjectLoadFinishedCallback.emit()

  2420.     elif action == ENGINE_CALLBACK_NSM:

  2421.         host.NSMCallback.emit(value1, value2, valueStr)

  2422.     elif action == ENGINE_CALLBACK_IDLE:

  2423.         QApplication.instance().processEvents()

  2424.     elif action == ENGINE_CALLBACK_INFO:

  2425.         host.InfoCallback.emit(valueStr)

  2426.     elif action == ENGINE_CALLBACK_ERROR:

  2427.         host.ErrorCallback.emit(valueStr)

  2428.     elif action == ENGINE_CALLBACK_QUIT:

  2429.         host.QuitCallback.emit()

  2430. 

  2431. # ------------------------------------------------------------------------------------------------------------

  2432. # File callback

  2433. 

  2434. def fileCallback(ptr, action, isDir, title, filter):

  2435.     ret = ("", "") if config_UseQt5 else ""

  2436. 

  2437.     if action == FILE_CALLBACK_DEBUG:

  2438.         pass

  2439.     elif action == FILE_CALLBACK_OPEN:

  2440.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2441.     elif action == FILE_CALLBACK_SAVE:

  2442.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  2443. 

  2444.     if config_UseQt5:

  2445.         ret = ret[0]

  2446.     if not ret:

  2447.         return None

  2448. 

  2449.     # FIXME

  2450.     global fileRet

  2451.     fileRet = c_char_p(ret.encode("utf-8"))

  2452.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2453.     return retval.contents.value

  2454. 

  2455. # ------------------------------------------------------------------------------------------------------------

  2456. # Init host

  2457. 

  2458. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2459.     pathBinaries, pathResources = getPaths(libPrefix)

  2460. 

  2461.     # --------------------------------------------------------------------------------------------------------

  2462.     # Check if we should open main lib as local or global

  2463. 

  2464.     settings = QSettings("falkTX", "Carla2")

  2465. 

  2466.     try:

  2467.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2468.     except:

  2469.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2470. 

  2471.     # --------------------------------------------------------------------------------------------------------

  2472.     # Fail if binary dir is not found

  2473. 

  2474.     if not os.path.exists(pathBinaries):

  2475.         if failError:

  2476.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2477.             sys.exit(1)

  2478.         return

  2479. 

  2480.     # --------------------------------------------------------------------------------------------------------

  2481.     # Set Carla library name

  2482. 

  2483.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2484.     libname   = os.path.join(pathBinaries, libname)

  2485.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2486. 

  2487.     # --------------------------------------------------------------------------------------------------------

  2488.     # Print info

  2489. 

  2490.     print("Carla %s started, status:" % VERSION)

  2491.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2492.     print("  Qt version:     %s" % qVersion())

  2493.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2494.     print("  Binary dir:     %s" % pathBinaries)

  2495.     print("  Resources dir:  %s" % pathResources)

  2496. 

  2497.     # --------------------------------------------------------------------------------------------------------

  2498.     # Init host

  2499. 

  2500.     if failError:

  2501.         # no try

  2502.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2503.     else:

  2504.         try:

  2505.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2506.         except:

  2507.             host = CarlaHostQtNull()

  2508. 

  2509.     host.isControl = isControl

  2510.     host.isPlugin  = isPlugin

  2511. 

  2512.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2513.     host.set_file_callback(fileCallback)

  2514. 

  2515.     # If it's a plugin the paths are already set

  2516.     if not isPlugin:

  2517.         host.pathBinaries  = pathBinaries

  2518.         host.pathResources = pathResources

  2519.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2520.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2521. 

  2522.         if not isControl:

  2523.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2524. 

  2525.     # --------------------------------------------------------------------------------------------------------

  2526.     # Init utils

  2527. 

  2528.     gCarla.utils = CarlaUtils(utilsname)

  2529.     gCarla.utils.set_process_name(os.path.basename(initName))

  2530. 

  2531.     try:

  2532.         sys.stdout.flush()

  2533.     except:

  2534.         pass

  2535. 

  2536.     sys.stdout = CarlaPrint(False)

  2537.     sys.stderr = CarlaPrint(True)

  2538. 

  2539.     if config_UseQt5:

  2540.         sys.excepthook = sys_excepthook

  2541. 

  2542.     # --------------------------------------------------------------------------------------------------------

  2543.     # Done

  2544. 

  2545.     return host

  2546. 

  2547. # ------------------------------------------------------------------------------------------------------------

  2548. # Load host settings

  2549. 

  2550. def loadHostSettings(host):

  2551.     # kdevelop likes this :)

  2552.     if False: host = CarlaHostNull()

  2553. 

  2554.     settings = QSettings("falkTX", "Carla2")

  2555. 

  2556.     try:

  2557.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2558.     except:

  2559.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2560. 

  2561.     try:

  2562.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2563.     except:

  2564.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2565. 

  2566.     try:

  2567.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2568.     except:

  2569.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2570. 

  2571.     try:

  2572.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2573.     except:

  2574.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2575. 

  2576.     try:

  2577.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2578.     except:

  2579.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2580. 

  2581.     try:

  2582.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2583.     except:

  2584.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2585. 

  2586.     try:

  2587.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2588.     except:

  2589.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2590. 

  2591.     try:

  2592.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2593.     except:

  2594.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2595. 

  2596.     try:

  2597.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2598.     except:

  2599.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2600. 

  2601.     try:

  2602.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2603.     except:

  2604.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2605. 

  2606.     try:

  2607.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2608.     except:

  2609.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2610. 

  2611.     try:

  2612.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2613.     except:

  2614.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2615. 

  2616.     try:

  2617.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2618.     except:

  2619.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2620. 

  2621.     if host.isPlugin:

  2622.         return

  2623. 

  2624.     # enums

  2625.     if host.audioDriverForced is None:

  2626.         try:

  2627.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2628.         except:

  2629.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2630. 

  2631.     if not host.processModeForced:

  2632.         try:

  2633.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2634.         except:

  2635.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2636. 

  2637.     host.nextProcessMode = host.processMode

  2638. 

  2639.     # --------------------------------------------------------------------------------------------------------

  2640.     # fix things if needed

  2641. 

  2642.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2643.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2644.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2645. 

  2646.     # --------------------------------------------------------------------------------------------------------

  2647.     # run headless host now if nogui option enabled

  2648. 

  2649.     if gCarla.nogui:

  2650.         runHostWithoutUI(host)

  2651. 

  2652. # ------------------------------------------------------------------------------------------------------------

  2653. # Set host settings

  2654. 

  2655. def setHostSettings(host):

  2656.     # kdevelop likes this :)

  2657.     if False: host = CarlaHostNull()

  2658. 

  2659.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2660.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2661.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2662.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2663.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2664.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2665.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2666.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2667. 

  2668.     if host.isPlugin:

  2669.         return

  2670. 

  2671.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2672.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2673. 

  2674. # ------------------------------------------------------------------------------------------------------------

  2675. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2676. 

  2677. def setEngineSettings(host):

  2678.     # kdevelop likes this :)

  2679.     if False: host = CarlaHostNull()

  2680. 

  2681.     # --------------------------------------------------------------------------------------------------------

  2682.     # do nothing if control

  2683. 

  2684.     if host.isControl:

  2685.         return "Control"

  2686. 

  2687.     # --------------------------------------------------------------------------------------------------------

  2688. 

  2689.     settings = QSettings("falkTX", "Carla2")

  2690. 

  2691.     # --------------------------------------------------------------------------------------------------------

  2692.     # main settings

  2693. 

  2694.     setHostSettings(host)

  2695. 

  2696.     # --------------------------------------------------------------------------------------------------------

  2697.     # plugin paths

  2698. 

  2699.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2700.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2701.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2702.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2703.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2704.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2705.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2706. 

  2707.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2708.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2709.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2710.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2711.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2712.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2713.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2714. 

  2715.     # --------------------------------------------------------------------------------------------------------

  2716.     # don't continue if plugin

  2717. 

  2718.     if host.isPlugin:

  2719.         return "Plugin"

  2720. 

  2721.     # --------------------------------------------------------------------------------------------------------

  2722.     # driver and device settings

  2723. 

  2724.     # driver name

  2725.     if host.audioDriverForced is not None:

  2726.         audioDriver = host.audioDriverForced

  2727.     else:

  2728.         try:

  2729.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2730.         except:

  2731.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2732. 

  2733.     # driver options

  2734.     try:

  2735.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2736.     except:

  2737.         audioDevice = ""

  2738. 

  2739.     try:

  2740.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2741.     except:

  2742.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2743. 

  2744.     try:

  2745.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2746.     except:

  2747.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2748. 

  2749.     try:

  2750.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2751.     except:

  2752.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2753. 

  2754.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2755.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2756.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2757.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2758. 

  2759.     # --------------------------------------------------------------------------------------------------------

  2760.     # fix things if needed

  2761. 

  2762.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2763.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2764.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2765. 

  2766.     # --------------------------------------------------------------------------------------------------------

  2767.     # wine settings

  2768. 

  2769.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2770.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2771.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2772.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2773.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2774.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2775. 

  2776.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2777.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2778.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2779.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2780.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2781.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2782. 

  2783.     # --------------------------------------------------------------------------------------------------------

  2784.     # return selected driver name

  2785. 

  2786.     return audioDriver

  2787. 

  2788. # ------------------------------------------------------------------------------------------------------------

  2789. # Run Carla without showing UI

  2790. 

  2791. def runHostWithoutUI(host):

  2792.     # kdevelop likes this :)

  2793.     if False: host = CarlaHostNull()

  2794. 

  2795.     # --------------------------------------------------------------------------------------------------------

  2796.     # Some initial checks

  2797. 

  2798.     if not gCarla.nogui:

  2799.         return

  2800. 

  2801.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2802. 

  2803.     if not projectFile:

  2804.         print("Carla no-gui mode can only be used together with a project file.")

  2805.         sys.exit(1)

  2806. 

  2807.     # --------------------------------------------------------------------------------------------------------

  2808.     # Additional imports

  2809. 

  2810.     from time import sleep

  2811. 

  2812.     # --------------------------------------------------------------------------------------------------------

  2813.     # Init engine

  2814. 

  2815.     audioDriver = setEngineSettings(host)

  2816.     if not host.engine_init(audioDriver, "Carla"):

  2817.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2818.         sys.exit(1)

  2819. 

  2820.     if not host.load_project(projectFile):

  2821.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2822.         host.engine_close()

  2823.         sys.exit(1)

  2824. 

  2825.     # --------------------------------------------------------------------------------------------------------

  2826.     # Idle

  2827. 

  2828.     while host.is_engine_running() and not gCarla.term:

  2829.         host.engine_idle()

  2830.         sleep(0.5)

  2831. 

  2832.     # --------------------------------------------------------------------------------------------------------

  2833.     # Stop

  2834. 

  2835.     host.engine_close()

  2836.     sys.exit(0)

  2837. 

  2838. # ------------------------------------------------------------------------------------------------------------