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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. if config_UseQt5:

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

  29.     from PyQt5.QtGui import QImage, QPalette

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

  31. else:

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

  33.     from PyQt4.QtGui import QImage, QPalette

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

  35. 

  36. # ------------------------------------------------------------------------------------------------------------

  37. # Imports (Custom)

  38. 

  39. import patchcanvas

  40. import ui_carla_host

  41. 

  42. from carla_app import *

  43. from carla_database import *

  44. from carla_settings import *

  45. from carla_utils import *

  46. from carla_widgets import *

  47. 

  48. from digitalpeakmeter import DigitalPeakMeter

  49. from pixmapkeyboard import PixmapKeyboardHArea

  50. 

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

  52. # Try Import OpenGL

  53. 

  54. try:

  55.     if config_UseQt5:

  56.         from PyQt5.QtOpenGL import QGLWidget

  57.     else:

  58.         from PyQt4.QtOpenGL import QGLWidget

  59.     hasGL = True

  60. except:

  61.     hasGL = False

  62. 

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

  64. # Session Management support

  65. 

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

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

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

  69. 

  70. # ------------------------------------------------------------------------------------------------------------

  71. # Carla Print class

  72. 

  73. class CarlaPrint:

  74.     def __init__(self, err):

  75.         self.err = err

  76. 

  77.     def flush(self):

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

  79. 

  80.     def write(self, string):

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

  82. 

  83. # ------------------------------------------------------------------------------------------------------------

  84. # Host Window

  85. 

  86. class HostWindow(QMainWindow):

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

  88.     # signals

  89.     SIGTERM = pyqtSignal()

  90.     SIGUSR1 = pyqtSignal()

  91. 

  92.     # --------------------------------------------------------------------------------------------------------

  93. 

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

  95.         QMainWindow.__init__(self, parent)

  96.         self.host = host

  97.         self.ui = ui_carla_host.Ui_CarlaHostW()

  98.         self.ui.setupUi(self)

  99.         gCarla.gui = self

  100. 

  101.         if False:

  102.             # kdevelop likes this :)

  103.             host = CarlaHostNull()

  104.             self.host = host

  105. 

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

  107. 

  108.         self.fParentOrSelf = parent or self

  109. 

  110.         # ----------------------------------------------------------------------------------------------------

  111.         # Internal stuff

  112. 

  113.         self.fIdleTimerFast = 0

  114.         self.fIdleTimerSlow = 0

  115. 

  116.         self.fLadspaRdfNeedsUpdate = True

  117.         self.fLadspaRdfList = []

  118. 

  119.         self.fPluginCount = 0

  120.         self.fPluginList  = []

  121. 

  122.         self.fProjectFilename  = ""

  123.         self.fIsProjectLoading = False

  124.         self.fCurrentlyRemovingAllPlugins = False

  125. 

  126.         self.fLastTransportBPM   = 0.0

  127.         self.fLastTransportFrame = 0

  128.         self.fLastTransportState = False

  129.         self.fSampleRate         = 0.0

  130. 

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

  132.         # 1 for close carla, 2 for load project

  133.         self.fCustomStopAction = 0

  134. 

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

  136.         self.fFirstEngineInit = True

  137. 

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

  139.         self.fSavedSettings = {}

  140. 

  141.         if host.isControl:

  142.             self.fClientName         = "Carla-Control"

  143.             self.fSessionManagerName = "Control"

  144.         elif host.isPlugin:

  145.             self.fClientName         = "Carla-Plugin"

  146.             self.fSessionManagerName = "Plugin"

  147.         elif LADISH_APP_NAME:

  148.             self.fClientName         = LADISH_APP_NAME

  149.             self.fSessionManagerName = "LADISH"

  150.         elif NSM_URL and host.nsmOK:

  151.             self.fClientName         = "Carla.tmp"

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

  153.         else:

  154.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  155.             self.fSessionManagerName = ""

  156. 

  157.         # ----------------------------------------------------------------------------------------------------

  158.         # Internal stuff (patchbay)

  159. 

  160.         self.fExportImage = QImage()

  161. 

  162.         self.fPeaksCleared = True

  163. 

  164.         self.fExternalPatchbay = False

  165.         self.fSelectedPlugins  = []

  166. 

  167.         self.fCanvasWidth  = 0

  168.         self.fCanvasHeight = 0

  169.         self.fMiniCanvasUpdateTimeout = 0

  170. 

  171.         self.fWithCanvas = withCanvas

  172. 

  173.         # ----------------------------------------------------------------------------------------------------

  174.         # Set up GUI (engine stopped)

  175. 

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

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

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

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

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

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

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

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

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

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

  186. 

  187.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

  198.             else:

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

  200. 

  201.         else:

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

  203. 

  204.             if WINDOWS:

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

  206. 

  207.         if not self.host.isControl:

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

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

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

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

  212. 

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

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

  215. 

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

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

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

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

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

  221. 

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

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

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

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

  226. 

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

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

  229. 

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

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

  232. 

  233.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  251.             self.ui.miniCanvasPreview.hide()

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

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

  254. 

  255.             if host.isControl:

  256.                 self.ui.dockWidget.hide()

  257. 

  258.         # ----------------------------------------------------------------------------------------------------

  259.         # Set up GUI (disk)

  260. 

  261.         self.fDirModel = QFileSystemModel(self)

  262.         self.fDirModel.setRootPath(HOME)

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

  264. 

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

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

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

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

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

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

  271. 

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

  273.         # Set up GUI (transport)

  274. 

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

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

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

  278. 

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

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

  281. 

  282.         if minLabelWidth < labelTimeWidth:

  283.             minLabelWidth = labelTimeWidth

  284.         if minLabelWidth < labelBBTWidth:

  285.             minLabelWidth = labelBBTWidth

  286. 

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

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

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

  290. 

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

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

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

  294. 

  295.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

  302. 

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

  304. 

  305.         # ----------------------------------------------------------------------------------------------------

  306.         # Set up GUI (rack)

  307. 

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

  309. 

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

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

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

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

  314. 

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

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

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

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

  319. 

  320.         self.ui.rack.setStyleSheet("""

  321.           QLabel#pad_left {

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

  323.             background-repeat: repeat-y;

  324.           }

  325.           QLabel#pad_right {

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

  327.             background-repeat: repeat-y;

  328.           }

  329.           CarlaRackList#CarlaRackList {

  330.             background-color: black;

  331.           }

  332.         """)

  333. 

  334.         # ----------------------------------------------------------------------------------------------------

  335.         # Set up GUI (patchbay)

  336. 

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

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

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

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

  341. 

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

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

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

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

  346. 

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

  348.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  350. 

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

  352. 

  353.         self.ui.miniCanvasPreview.setRealParent(self)

  354. 

  355.         # ----------------------------------------------------------------------------------------------------

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

  357. 

  358.         if MACOS:

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

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

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

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

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

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

  365. 

  366.         # ----------------------------------------------------------------------------------------------------

  367.         # Load Settings

  368. 

  369.         self.loadSettings(True)

  370. 

  371.         # ----------------------------------------------------------------------------------------------------

  372.         # Set-up Canvas

  373. 

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

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

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

  377. 

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

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

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

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

  382. 

  383.         self.setupCanvas()

  384. 

  385.         # ----------------------------------------------------------------------------------------------------

  386.         # Connect actions to functions

  387. 

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

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

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

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

  392. 

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

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

  395. 

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

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

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

  399. 

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

  401. 

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

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

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

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

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

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

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

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

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

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

  412. 

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

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

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

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

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

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

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

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

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

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

  423. 

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

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

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

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

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

  429. 

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

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

  432. 

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

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

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

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

  437. 

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

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

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

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

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

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

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

  445. 

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

  447. 

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

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

  450. 

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

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

  453. 

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

  455. 

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

  457. 

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

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

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

  461. 

  462.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  463.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  464. 

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

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

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

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

  469. 

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

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

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

  473. 

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

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

  476. 

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

  478. 

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

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

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

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

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

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

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

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

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

  488. 

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

  490. 

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

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

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

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

  495. 

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

  497.         # Final setup

  498. 

  499.         self.ui.text_logs.clear()

  500.         self.setProperWindowTitle()

  501. 

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

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

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

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

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

  507. 

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

  509.         if self.host.isPlugin:

  510.             self.startTimers()

  511. 

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

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

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

  515. 

  516.         # Load initial project file if set

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

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

  519. 

  520.             if projectFile:

  521.                 self.loadProjectLater(projectFile)

  522. 

  523.         # For NSM we wait for the open message

  524.         if NSM_URL and host.nsmOK:

  525.             host.nsm_ready(-1)

  526.             return

  527. 

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

  529. 

  530.     # --------------------------------------------------------------------------------------------------------

  531.     # Setup

  532. 

  533.     def compactPlugin(self, pluginId):

  534.         if pluginId > self.fPluginCount:

  535.             return

  536. 

  537.         pitem = self.fPluginList[pluginId]

  538. 

  539.         if pitem is None:

  540.             return

  541. 

  542.         pitem.recreateWidget(True)

  543. 

  544.     def setLoadRDFsNeeded(self):

  545.         self.fLadspaRdfNeedsUpdate = True

  546. 

  547.     def setProperWindowTitle(self):

  548.         title = self.fClientName

  549. 

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

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

  552.         if self.fSessionManagerName:

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

  554. 

  555.         self.setWindowTitle(title)

  556. 

  557.     # --------------------------------------------------------------------------------------------------------

  558.     # Files

  559. 

  560.     def makeExtraFilename(self):

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

  562. 

  563.     def loadProjectNow(self):

  564.         if not self.fProjectFilename:

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

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

  567.             return

  568. 

  569.         self.projectLoadingStarted()

  570.         self.fIsProjectLoading = True

  571.         self.host.load_project(self.fProjectFilename)

  572. 

  573.         # Project finished loading is sent by engine

  574. 

  575.     def loadProjectLater(self, filename):

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

  577.         self.setProperWindowTitle()

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

  579. 

  580.     def saveProjectNow(self):

  581.         if not self.fProjectFilename:

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

  583. 

  584.         self.host.save_project(self.fProjectFilename)

  585. 

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

  587.             json.dump({

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

  589.             }, fh)

  590. 

  591.     def projectLoadingStarted(self):

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

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

  594. 

  595.     def projectLoadingFinished(self):

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

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

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

  599. 

  600.         extrafile = self.makeExtraFilename()

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

  602.             return

  603. 

  604.         try:

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

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

  607.         except:

  608.             return

  609. 

  610.         patchcanvas.restoreGroupPositions(canvasdata)

  611. 

  612.     # --------------------------------------------------------------------------------------------------------

  613.     # Files (menu actions)

  614. 

  615.     @pyqtSlot()

  616.     def slot_fileNew(self):

  617.         self.slot_pluginRemoveAll()

  618.         self.fProjectFilename = ""

  619.         self.setProperWindowTitle()

  620. 

  621.     @pyqtSlot()

  622.     def slot_fileOpen(self):

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

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

  625. 

  626.         if config_UseQt5:

  627.             filename = filename[0]

  628.         if not filename:

  629.             return

  630. 

  631.         newFile = True

  632. 

  633.         if self.fPluginCount > 0:

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

  635.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  637. 

  638.         if newFile:

  639.             self.slot_pluginRemoveAll()

  640.             self.fProjectFilename = filename

  641.             self.setProperWindowTitle()

  642.             self.loadProjectNow()

  643.         else:

  644.             filenameOld = self.fProjectFilename

  645.             self.fProjectFilename = filename

  646.             self.loadProjectNow()

  647.             self.fProjectFilename = filenameOld

  648. 

  649.     @pyqtSlot()

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

  651.         if self.fProjectFilename and not saveAs:

  652.             return self.saveProjectNow()

  653. 

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

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

  656. 

  657.         if config_UseQt5:

  658.             filename = filename[0]

  659.         if not filename:

  660.             return

  661. 

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

  663.             filename += ".carxp"

  664. 

  665.         if self.fProjectFilename != filename:

  666.             self.fProjectFilename = filename

  667.             self.setProperWindowTitle()

  668. 

  669.         self.saveProjectNow()

  670. 

  671.     @pyqtSlot()

  672.     def slot_fileSaveAs(self):

  673.         self.slot_fileSave(True)

  674. 

  675.     @pyqtSlot()

  676.     def slot_loadProjectNow(self):

  677.         self.loadProjectNow()

  678. 

  679.     # --------------------------------------------------------------------------------------------------------

  680.     # Engine (menu actions)

  681. 

  682.     @pyqtSlot()

  683.     def slot_engineStart(self):

  684.         audioDriver = setEngineSettings(self.host)

  685.         firstInit   = self.fFirstEngineInit

  686. 

  687.         self.fFirstEngineInit = False

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

  689. 

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

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

  692.             return

  693. 

  694.         elif firstInit:

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

  696.             return

  697. 

  698.         audioError = self.host.get_last_error()

  699. 

  700.         if audioError:

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

  702.         else:

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

  704. 

  705.     @pyqtSlot()

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

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

  708. 

  709.         if self.fPluginCount == 0:

  710.             self.engineStopFinal()

  711.             return True

  712. 

  713.         if not forced:

  714.             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"

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

  716.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  717.             if ask != QMessageBox.Yes:

  718.                 return False

  719. 

  720.         return self.slot_engineStopTryAgain()

  721. 

  722.     @pyqtSlot()

  723.     def slot_engineStopTryAgain(self):

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

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

  726.             return False

  727. 

  728.         self.engineStopFinal()

  729.         return True

  730. 

  731.     def engineStopFinal(self):

  732.         self.killTimers()

  733.         self.removeAllPlugins()

  734. 

  735.         if self.host.is_engine_running():

  736.             self.host.remove_all_plugins()

  737. 

  738.             if self.host.engine_close():

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

  740.             else:

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

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

  743. 

  744.         if self.fCustomStopAction == 1:

  745.             self.close()

  746.         elif self.fCustomStopAction == 2:

  747.             self.slot_engineStart()

  748.             self.loadProjectNow()

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

  750. 

  751.         self.fCustomStopAction = 0

  752. 

  753.     # --------------------------------------------------------------------------------------------------------

  754.     # Engine (host callbacks)

  755. 

  756.     @pyqtSlot(int, int, str)

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

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

  759. 

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

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

  762. 

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

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

  765. 

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

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

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

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

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

  771.         else:

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

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

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

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

  776. 

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

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

  779. 

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

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

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

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

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

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

  786. 

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

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

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

  790. 

  791.         self.refreshTransport(True)

  792. 

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

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

  795. 

  796.         self.startTimers()

  797. 

  798.     @pyqtSlot()

  799.     def slot_handleEngineStoppedCallback(self):

  800.         patchcanvas.clear()

  801.         self.killTimers()

  802. 

  803.         # just in case

  804.         self.removeAllPlugins()

  805. 

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

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

  808. 

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

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

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

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

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

  814. 

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

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

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

  818. 

  819.     @pyqtSlot(float)

  820.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  821.         self.fSampleRate = newSampleRate

  822.         self.refreshTransport(True)

  823. 

  824.     @pyqtSlot()

  825.     def slot_handleProjectLoadFinishedCallback(self):

  826.         self.fIsProjectLoading = False

  827.         self.projectLoadingFinished()

  828. 

  829.     # --------------------------------------------------------------------------------------------------------

  830.     # Plugins

  831. 

  832.     def removeAllPlugins(self):

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

  834.         patchcanvas.handleAllPluginsRemoved()

  835. 

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

  837.             pass

  838. 

  839.         self.clearSideStuff()

  840. 

  841.         for pitem in self.fPluginList:

  842.             if pitem is None:

  843.                 continue

  844. 

  845.             pitem.close()

  846.             del pitem

  847. 

  848.         self.fPluginCount = 0

  849.         self.fPluginList  = []

  850. 

  851.     # --------------------------------------------------------------------------------------------------------

  852.     # Plugins (menu actions)

  853. 

  854.     def showAddPluginDialog(self):

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

  856. 

  857.         if not dialog.exec_():

  858.             return

  859. 

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

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

  862.             return

  863. 

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

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

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

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

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

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

  870. 

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

  872. 

  873.     def showAddJackAppDialog(self):

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

  875. 

  876.         if not dialog.exec_():

  877.             return

  878. 

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

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

  881.             return

  882. 

  883.         return dialog.getCommandAndFlags()

  884. 

  885.     @pyqtSlot()

  886.     def showPluginActionsMenu(self):

  887.         menu = QMenu(self)

  888. 

  889.         if config_UseQt5:

  890.             menu.addSection("Plugins")

  891.         else:

  892.             # fake section

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

  894.             font = act.font()

  895.             font.setBold(True)

  896.             act.setFont(font)

  897.             act.setEnabled(False)

  898.             menu.addSeparator()

  899. 

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

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

  902. 

  903.         if config_UseQt5:

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

  905.         else:

  906.             # fake space

  907.             act  = menu.addAction(" ")

  908.             font = act.font()

  909.             font.setBold(True)

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

  911.             act.setEnabled(False)

  912. 

  913.             # fake section

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

  915.             font = act.font()

  916.             font.setBold(True)

  917.             act.setFont(font)

  918.             act.setEnabled(False)

  919.             menu.addSeparator()

  920. 

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

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

  923.         menu.addSeparator()

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

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

  926.         menu.addSeparator()

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

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

  929.         menu.addSeparator()

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

  931.         menu.addSeparator()

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

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

  934. 

  935.         menu.exec_(QCursor.pos())

  936. 

  937.     @pyqtSlot()

  938.     def slot_pluginAdd(self):

  939.         data = self.showAddPluginDialog()

  940. 

  941.         if data is None:

  942.             return

  943. 

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

  945. 

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

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

  948. 

  949.     @pyqtSlot()

  950.     def slot_pluginRemoveAll(self):

  951.         if self.fPluginCount == 0:

  952.             return

  953. 

  954.         # FIXME - this is not working

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

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

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

  958.             self.projectLoadingStarted()

  959. 

  960.             app = QApplication.instance()

  961.             app.processEvents()

  962. 

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

  964.                 self.host.remove_plugin(i)

  965.                 app.processEvents()

  966. 

  967.             self.projectLoadingFinished()

  968. 

  969.         self.fCurrentlyRemovingAllPlugins = True

  970.         ok = self.host.remove_all_plugins()

  971.         self.fCurrentlyRemovingAllPlugins = False

  972. 

  973.         if ok:

  974.             self.removeAllPlugins()

  975.         else:

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

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

  978. 

  979.         self.fCurrentlyRemovingAllPlugins = False

  980. 

  981.     @pyqtSlot()

  982.     def slot_jackAppAdd(self):

  983.         data = self.showAddJackAppDialog()

  984. 

  985.         if data is None:

  986.             return

  987. 

  988.         filename, name, label = data

  989. 

  990.         if not filename:

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

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

  993.             return

  994. 

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

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

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

  998. 

  999.     # --------------------------------------------------------------------------------------------------------

  1000.     # Plugins (macros)

  1001. 

  1002.     @pyqtSlot()

  1003.     def slot_pluginsEnable(self):

  1004.         if not self.host.is_engine_running():

  1005.             return

  1006. 

  1007.         for pitem in self.fPluginList:

  1008.             if pitem is None:

  1009.                 break

  1010. 

  1011.             pitem.getWidget().setActive(True, True, True)

  1012. 

  1013.     @pyqtSlot()

  1014.     def slot_pluginsDisable(self):

  1015.         if not self.host.is_engine_running():

  1016.             return

  1017. 

  1018.         for pitem in self.fPluginList:

  1019.             if pitem is None:

  1020.                 break

  1021. 

  1022.             pitem.getWidget().setActive(False, True, True)

  1023. 

  1024.     @pyqtSlot()

  1025.     def slot_pluginsVolume100(self):

  1026.         if not self.host.is_engine_running():

  1027.             return

  1028. 

  1029.         for pitem in self.fPluginList:

  1030.             if pitem is None:

  1031.                 break

  1032. 

  1033.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1034. 

  1035.     @pyqtSlot()

  1036.     def slot_pluginsMute(self):

  1037.         if not self.host.is_engine_running():

  1038.             return

  1039. 

  1040.         for pitem in self.fPluginList:

  1041.             if pitem is None:

  1042.                 break

  1043. 

  1044.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1045. 

  1046.     @pyqtSlot()

  1047.     def slot_pluginsWet100(self):

  1048.         if not self.host.is_engine_running():

  1049.             return

  1050. 

  1051.         for pitem in self.fPluginList:

  1052.             if pitem is None:

  1053.                 break

  1054. 

  1055.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1056. 

  1057.     @pyqtSlot()

  1058.     def slot_pluginsBypass(self):

  1059.         if not self.host.is_engine_running():

  1060.             return

  1061. 

  1062.         for pitem in self.fPluginList:

  1063.             if pitem is None:

  1064.                 break

  1065. 

  1066.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1067. 

  1068.     @pyqtSlot()

  1069.     def slot_pluginsCenter(self):

  1070.         if not self.host.is_engine_running():

  1071.             return

  1072. 

  1073.         for pitem in self.fPluginList:

  1074.             if pitem is None:

  1075.                 break

  1076. 

  1077.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1078.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1079.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1080. 

  1081.     @pyqtSlot()

  1082.     def slot_pluginsCompact(self):

  1083.         for pitem in self.fPluginList:

  1084.             if pitem is None:

  1085.                 break

  1086.             pitem.compact()

  1087. 

  1088.     @pyqtSlot()

  1089.     def slot_pluginsExpand(self):

  1090.         for pitem in self.fPluginList:

  1091.             if pitem is None:

  1092.                 break

  1093.             pitem.expand()

  1094. 

  1095.     # --------------------------------------------------------------------------------------------------------

  1096.     # Plugins (host callbacks)

  1097. 

  1098.     @pyqtSlot(int, str)

  1099.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1100.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1101. 

  1102.         self.fPluginList.append(pitem)

  1103.         self.fPluginCount += 1

  1104. 

  1105.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1106. 

  1107.     @pyqtSlot(int)

  1108.     def slot_handlePluginRemovedCallback(self, pluginId):

  1109.         patchcanvas.handlePluginRemoved(pluginId)

  1110. 

  1111.         if pluginId in self.fSelectedPlugins:

  1112.             self.clearSideStuff()

  1113. 

  1114.         pitem = self.getPluginItem(pluginId)

  1115. 

  1116.         self.fPluginCount -= 1

  1117.         self.fPluginList.pop(pluginId)

  1118.         self.ui.listWidget.takeItem(pluginId)

  1119. 

  1120.         if pitem is not None:

  1121.             pitem.close()

  1122.             del pitem

  1123. 

  1124.         # push all plugins 1 slot back

  1125.         for i in range(pluginId, self.fPluginCount):

  1126.             pitem = self.fPluginList[i]

  1127.             pitem.setPluginId(i)

  1128. 

  1129.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1130. 

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

  1132.     # Canvas

  1133. 

  1134.     def clearSideStuff(self):

  1135.         self.scene.clearSelection()

  1136. 

  1137.         self.fSelectedPlugins = []

  1138. 

  1139.         self.ui.keyboard.allNotesOff(False)

  1140.         self.ui.scrollArea.setEnabled(False)

  1141. 

  1142.         self.fPeaksCleared = True

  1143.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1144.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1145.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1146.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1147. 

  1148.     def setupCanvas(self):

  1149.         pOptions = patchcanvas.options_t()

  1150.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1151.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1152.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1153.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1154.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1155. 

  1156.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1157.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1158.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1159.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1160.         else:

  1161.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1162. 

  1163.         pFeatures = patchcanvas.features_t()

  1164.         pFeatures.group_info   = False

  1165.         pFeatures.group_rename = False

  1166.         pFeatures.port_info    = False

  1167.         pFeatures.port_rename  = False

  1168.         pFeatures.handle_group_pos = True

  1169. 

  1170.         patchcanvas.setOptions(pOptions)

  1171.         patchcanvas.setFeatures(pFeatures)

  1172.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1173. 

  1174.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1175. 

  1176.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1177.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1178.             self.fCanvasHeight = int(tryCanvasSize[1])

  1179.         else:

  1180.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1181.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1182. 

  1183.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1184.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1185.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1186. 

  1187.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1188.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1189. 

  1190.     def updateCanvasInitialPos(self):

  1191.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1192.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1193.         patchcanvas.setInitialPos(x, y)

  1194. 

  1195.     def updateMiniCanvasLater(self):

  1196.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1197. 

  1198.     # --------------------------------------------------------------------------------------------------------

  1199.     # Canvas (menu actions)

  1200. 

  1201.     @pyqtSlot()

  1202.     def slot_canvasShowInternal(self):

  1203.         self.fExternalPatchbay = False

  1204.         self.ui.act_canvas_show_internal.blockSignals(True)

  1205.         self.ui.act_canvas_show_external.blockSignals(True)

  1206.         self.ui.act_canvas_show_internal.setChecked(True)

  1207.         self.ui.act_canvas_show_external.setChecked(False)

  1208.         self.ui.act_canvas_show_internal.blockSignals(False)

  1209.         self.ui.act_canvas_show_external.blockSignals(False)

  1210.         self.slot_canvasRefresh()

  1211. 

  1212.     @pyqtSlot()

  1213.     def slot_canvasShowExternal(self):

  1214.         self.fExternalPatchbay = True

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

  1216.         self.ui.act_canvas_show_external.blockSignals(True)

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

  1218.         self.ui.act_canvas_show_external.setChecked(True)

  1219.         self.ui.act_canvas_show_internal.blockSignals(False)

  1220.         self.ui.act_canvas_show_external.blockSignals(False)

  1221.         self.slot_canvasRefresh()

  1222. 

  1223.     @pyqtSlot()

  1224.     def slot_canvasArrange(self):

  1225.         patchcanvas.arrange()

  1226. 

  1227.     @pyqtSlot()

  1228.     def slot_canvasRefresh(self):

  1229.         patchcanvas.clear()

  1230. 

  1231.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1232.             return

  1233. 

  1234.         if self.host.is_engine_running():

  1235.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1236. 

  1237.         self.updateMiniCanvasLater()

  1238. 

  1239.     @pyqtSlot()

  1240.     def slot_canvasZoomFit(self):

  1241.         self.scene.zoom_fit()

  1242. 

  1243.     @pyqtSlot()

  1244.     def slot_canvasZoomIn(self):

  1245.         self.scene.zoom_in()

  1246. 

  1247.     @pyqtSlot()

  1248.     def slot_canvasZoomOut(self):

  1249.         self.scene.zoom_out()

  1250. 

  1251.     @pyqtSlot()

  1252.     def slot_canvasZoomReset(self):

  1253.         self.scene.zoom_reset()

  1254. 

  1255.     @pyqtSlot()

  1256.     def slot_canvasSaveImage(self):

  1257.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1258. 

  1259.         if config_UseQt5:

  1260.             newPath = newPath[0]

  1261.         if not newPath:

  1262.             return

  1263. 

  1264.         self.scene.clearSelection()

  1265. 

  1266.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1267.             imgFormat = "JPG"

  1268.         elif newPath.lower().endswith((".png",)):

  1269.             imgFormat = "PNG"

  1270.         else:

  1271.             # File-dialog may not auto-add the extension

  1272.             imgFormat = "PNG"

  1273.             newPath  += ".png"

  1274. 

  1275.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1276.         painter = QPainter(self.fExportImage)

  1277.         painter.save()

  1278.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1279.         painter.setRenderHint(QPainter.TextAntialiasing)

  1280.         self.scene.render(painter)

  1281.         self.fExportImage.save(newPath, imgFormat, 100)

  1282.         painter.restore()

  1283. 

  1284.     # --------------------------------------------------------------------------------------------------------

  1285.     # Canvas (canvas callbacks)

  1286. 

  1287.     @pyqtSlot(int, int, QPointF)

  1288.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1289.         self.updateMiniCanvasLater()

  1290. 

  1291.     @pyqtSlot(float)

  1292.     def slot_canvasScaleChanged(self, scale):

  1293.         self.ui.miniCanvasPreview.setViewScale(scale)

  1294. 

  1295.     @pyqtSlot(list)

  1296.     def slot_canvasPluginSelected(self, pluginList):

  1297.         self.ui.keyboard.allNotesOff(False)

  1298.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1299.         self.fSelectedPlugins = pluginList

  1300. 

  1301.     # --------------------------------------------------------------------------------------------------------

  1302.     # Canvas (host callbacks)

  1303. 

  1304.     @pyqtSlot(int, int, int, str)

  1305.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1306.         pcSplit = patchcanvas.SPLIT_UNDEF

  1307.         pcIcon  = patchcanvas.ICON_APPLICATION

  1308. 

  1309.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1310.             pcIcon = patchcanvas.ICON_PLUGIN

  1311.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1312.             pcIcon = patchcanvas.ICON_HARDWARE

  1313.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1314.             pass

  1315.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1316.             pcIcon = patchcanvas.ICON_DISTRHO

  1317.         elif clientIcon == PATCHBAY_ICON_FILE:

  1318.             pcIcon = patchcanvas.ICON_FILE

  1319. 

  1320.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1321. 

  1322.         self.updateMiniCanvasLater()

  1323. 

  1324.         if pluginId < 0:

  1325.             return

  1326.         if pluginId >= self.fPluginCount:

  1327.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1328.             return

  1329. 

  1330.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1331. 

  1332.     @pyqtSlot(int)

  1333.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1334.         patchcanvas.removeGroup(clientId)

  1335.         self.updateMiniCanvasLater()

  1336. 

  1337.     @pyqtSlot(int, str)

  1338.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1339.         patchcanvas.renameGroup(clientId, newClientName)

  1340.         self.updateMiniCanvasLater()

  1341. 

  1342.     @pyqtSlot(int, int, int)

  1343.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1344.         pcIcon = patchcanvas.ICON_APPLICATION

  1345. 

  1346.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1347.             pcIcon = patchcanvas.ICON_PLUGIN

  1348.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1349.             pcIcon = patchcanvas.ICON_HARDWARE

  1350.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1351.             pass

  1352.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1353.             pcIcon = patchcanvas.ICON_DISTRHO

  1354.         elif clientIcon == PATCHBAY_ICON_FILE:

  1355.             pcIcon = patchcanvas.ICON_FILE

  1356. 

  1357.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1358.         self.updateMiniCanvasLater()

  1359. 

  1360.         if pluginId < 0:

  1361.             return

  1362.         if pluginId >= self.fPluginCount:

  1363.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1364.             return

  1365. 

  1366.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1367. 

  1368.     @pyqtSlot(int, int, int, str)

  1369.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1370.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1371.             portMode = patchcanvas.PORT_MODE_INPUT

  1372.         else:

  1373.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1374. 

  1375.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1376.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1377.             isAlternate = False

  1378.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1379.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1380.             isAlternate = True

  1381.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1382.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1383.             isAlternate = False

  1384.         else:

  1385.             portType    = patchcanvas.PORT_TYPE_NULL

  1386.             isAlternate = False

  1387. 

  1388.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1389.         self.updateMiniCanvasLater()

  1390. 

  1391.     @pyqtSlot(int, int)

  1392.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1393.         patchcanvas.removePort(groupId, portId)

  1394.         self.updateMiniCanvasLater()

  1395. 

  1396.     @pyqtSlot(int, int, str)

  1397.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1398.         patchcanvas.renamePort(groupId, portId, newPortName)

  1399.         self.updateMiniCanvasLater()

  1400. 

  1401.     @pyqtSlot(int, int, int, int, int)

  1402.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1403.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1404.         self.updateMiniCanvasLater()

  1405. 

  1406.     @pyqtSlot(int, int, int)

  1407.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1408.         patchcanvas.disconnectPorts(connectionId)

  1409.         self.updateMiniCanvasLater()

  1410. 

  1411.     # --------------------------------------------------------------------------------------------------------

  1412.     # Settings

  1413. 

  1414.     def saveSettings(self):

  1415.         settings = QSettings()

  1416. 

  1417.         settings.setValue("Geometry", self.saveGeometry())

  1418. 

  1419.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1420. 

  1421.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1422. 

  1423.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1424. 

  1425.         diskFolders = []

  1426. 

  1427.         for i in range(self.ui.cb_disk.count()):

  1428.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1429. 

  1430.         settings.setValue("DiskFolders", diskFolders)

  1431. 

  1432.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1433.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1434.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1435.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1436. 

  1437.     def loadSettings(self, firstTime):

  1438.         settings = QSettings()

  1439. 

  1440.         if firstTime:

  1441.             self.restoreGeometry(settings.value("Geometry", b""))

  1442. 

  1443.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1444.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1445.             self.ui.toolBar.setEnabled(showToolbar)

  1446.             self.ui.toolBar.setVisible(showToolbar)

  1447. 

  1448.             #if settings.contains("SplitterState"):

  1449.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1450.             #else:

  1451.                 #self.ui.splitter.setSizes([210, 99999])

  1452. 

  1453.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1454.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1455.             self.ui.dockWidget.setEnabled(showSidePanel)

  1456.             self.ui.dockWidget.setVisible(showSidePanel)

  1457. 

  1458.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1459. 

  1460.             self.ui.cb_disk.setItemData(0, HOME)

  1461. 

  1462.             for i in range(len(diskFolders)):

  1463.                 if i == 0: continue

  1464.                 folder = diskFolders[i]

  1465.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1466. 

  1467.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1468.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1469. 

  1470.             showMeters = settings.value("ShowMeters", False, type=bool)

  1471.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1472.             self.ui.peak_in.setVisible(showMeters)

  1473.             self.ui.peak_out.setVisible(showMeters)

  1474. 

  1475.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1476.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1477.             self.ui.scrollArea.setVisible(showKeyboard)

  1478. 

  1479.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1480. 

  1481.         # TODO - complete this

  1482. 

  1483.         self.fSavedSettings = {

  1484.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1485.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1486.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1487.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1488.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1489.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1490.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1491.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1492.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1493.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1494.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1495.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1496.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1497.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1498.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1499.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1500.         }

  1501. 

  1502.         self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1503.                                                        CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1504. 

  1505.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1506. 

  1507.         setEngineSettings(self.host)

  1508.         self.restartTimersIfNeeded()

  1509. 

  1510.     # --------------------------------------------------------------------------------------------------------

  1511.     # Settings (helpers)

  1512. 

  1513.     @pyqtSlot()

  1514.     def slot_restoreCanvasScrollbarValues(self):

  1515.         settings = QSettings()

  1516.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1517.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1518. 

  1519.     # --------------------------------------------------------------------------------------------------------

  1520.     # Settings (menu actions)

  1521. 

  1522.     @pyqtSlot(bool)

  1523.     def slot_showSidePanel(self, yesNo):

  1524.         self.ui.dockWidget.setEnabled(yesNo)

  1525.         self.ui.dockWidget.setVisible(yesNo)

  1526. 

  1527.     @pyqtSlot(bool)

  1528.     def slot_showToolbar(self, yesNo):

  1529.         self.ui.toolBar.setEnabled(yesNo)

  1530.         self.ui.toolBar.setVisible(yesNo)

  1531. 

  1532.     @pyqtSlot(bool)

  1533.     def slot_showCanvasMeters(self, yesNo):

  1534.         self.ui.peak_in.setVisible(yesNo)

  1535.         self.ui.peak_out.setVisible(yesNo)

  1536.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1537. 

  1538.     @pyqtSlot(bool)

  1539.     def slot_showCanvasKeyboard(self, yesNo):

  1540.         self.ui.scrollArea.setVisible(yesNo)

  1541.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1542. 

  1543.     @pyqtSlot()

  1544.     def slot_configureCarla(self):

  1545.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1546.         if not dialog.exec_():

  1547.             return

  1548. 

  1549.         self.loadSettings(False)

  1550. 

  1551.         patchcanvas.clear()

  1552. 

  1553.         self.setupCanvas()

  1554.         self.slot_miniCanvasCheckAll()

  1555. 

  1556.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1557.             pass

  1558.         elif self.host.is_engine_running():

  1559.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1560. 

  1561.         for pitem in self.fPluginList:

  1562.             if pitem is None:

  1563.                 break

  1564.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1565.             pitem.recreateWidget()

  1566. 

  1567.     # --------------------------------------------------------------------------------------------------------

  1568.     # About (menu actions)

  1569. 

  1570.     @pyqtSlot()

  1571.     def slot_aboutCarla(self):

  1572.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1573. 

  1574.     @pyqtSlot()

  1575.     def slot_aboutQt(self):

  1576.         QApplication.instance().aboutQt()

  1577. 

  1578.     # --------------------------------------------------------------------------------------------------------

  1579.     # Disk (menu actions)

  1580. 

  1581.     @pyqtSlot(int)

  1582.     def slot_diskFolderChanged(self, index):

  1583.         if index < 0:

  1584.             return

  1585.         elif index == 0:

  1586.             filename = HOME

  1587.             self.ui.b_disk_remove.setEnabled(False)

  1588.         else:

  1589.             filename = self.ui.cb_disk.itemData(index)

  1590.             self.ui.b_disk_remove.setEnabled(True)

  1591. 

  1592.         self.fDirModel.setRootPath(filename)

  1593.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1594. 

  1595.     @pyqtSlot()

  1596.     def slot_diskFolderAdd(self):

  1597.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1598. 

  1599.         if newPath:

  1600.             if newPath[-1] == os.sep:

  1601.                 newPath = newPath[:-1]

  1602.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1603.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1604.             self.ui.b_disk_remove.setEnabled(True)

  1605. 

  1606.     @pyqtSlot()

  1607.     def slot_diskFolderRemove(self):

  1608.         index = self.ui.cb_disk.currentIndex()

  1609. 

  1610.         if index <= 0:

  1611.             return

  1612. 

  1613.         self.ui.cb_disk.removeItem(index)

  1614. 

  1615.         if self.ui.cb_disk.currentIndex() == 0:

  1616.             self.ui.b_disk_remove.setEnabled(False)

  1617. 

  1618.     @pyqtSlot(QModelIndex)

  1619.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1620.         filename = self.fDirModel.filePath(modelIndex)

  1621. 

  1622.         if not self.ui.listWidget.isDragUrlValid(filename):

  1623.             return

  1624. 

  1625.         if not self.host.load_file(filename):

  1626.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1627.                              self.tr("Failed to load file"),

  1628.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1629. 

  1630.     # --------------------------------------------------------------------------------------------------------

  1631.     # Transport

  1632. 

  1633.     def refreshTransport(self, forced = False):

  1634.         if not self.isVisible():

  1635.             return

  1636.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1637.             return

  1638. 

  1639.         timeInfo = self.host.get_transport_info()

  1640.         playing  = timeInfo['playing']

  1641.         frame    = timeInfo['frame']

  1642.         bpm      = timeInfo['bpm']

  1643. 

  1644.         if playing != self.fLastTransportState or forced:

  1645.             if playing:

  1646.                 icon = getIcon("media-playback-pause")

  1647.                 self.ui.b_transport_play.setChecked(True)

  1648.                 self.ui.b_transport_play.setIcon(icon)

  1649.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1650.             else:

  1651.                 icon = getIcon("media-playback-start")

  1652.                 self.ui.b_transport_play.setChecked(False)

  1653.                 self.ui.b_transport_play.setIcon(icon)

  1654.                 #self.ui.b_play.setText(self.tr("&Play"))

  1655. 

  1656.             self.fLastTransportState = playing

  1657. 

  1658.         if frame != self.fLastTransportFrame or forced:

  1659.             self.fLastTransportFrame = frame

  1660. 

  1661.             time = frame / self.fSampleRate

  1662.             secs =  time % 60

  1663.             mins = (time / 60) % 60

  1664.             hrs  = (time / 3600) % 60

  1665.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1666. 

  1667.             frame1 =  frame % 1000

  1668.             frame2 = (frame / 1000) % 1000

  1669.             frame3 = (frame / 1000000) % 1000

  1670.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1671. 

  1672.             bar  = timeInfo['bar']

  1673.             beat = timeInfo['beat']

  1674.             tick = timeInfo['tick']

  1675.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1676. 

  1677.         if bpm != self.fLastTransportBPM or forced:

  1678.             self.fLastTransportBPM = bpm

  1679. 

  1680.             if bpm > 0.0:

  1681.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1682.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1683.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1684.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1685.             else:

  1686.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1687. 

  1688.     # --------------------------------------------------------------------------------------------------------

  1689.     # Transport (menu actions)

  1690. 

  1691.     @pyqtSlot(bool)

  1692.     def slot_transportPlayPause(self, toggled):

  1693.         if self.host.isPlugin or not self.host.is_engine_running():

  1694.             return

  1695. 

  1696.         if toggled:

  1697.             self.host.transport_play()

  1698.         else:

  1699.             self.host.transport_pause()

  1700. 

  1701.         self.refreshTransport()

  1702. 

  1703.     @pyqtSlot()

  1704.     def slot_transportStop(self):

  1705.         if self.host.isPlugin or not self.host.is_engine_running():

  1706.             return

  1707. 

  1708.         self.host.transport_pause()

  1709.         self.host.transport_relocate(0)

  1710. 

  1711.         self.refreshTransport()

  1712. 

  1713.     @pyqtSlot()

  1714.     def slot_transportBackwards(self):

  1715.         if self.host.isPlugin or not self.host.is_engine_running():

  1716.             return

  1717. 

  1718.         newFrame = self.host.get_current_transport_frame() - 100000

  1719. 

  1720.         if newFrame < 0:

  1721.             newFrame = 0

  1722. 

  1723.         self.host.transport_relocate(newFrame)

  1724. 

  1725.     @pyqtSlot(float)

  1726.     def slot_transportBpmChanged(self, newValue):

  1727.         self.host.transport_bpm(newValue)

  1728. 

  1729.     @pyqtSlot()

  1730.     def slot_transportForwards(self):

  1731.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1732.             return

  1733. 

  1734.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1735.         self.host.transport_relocate(newFrame)

  1736. 

  1737.     @pyqtSlot(bool)

  1738.     def slot_transportJackEnabled(self, clicked):

  1739.         if not self.host.is_engine_running():

  1740.             return

  1741.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1742.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1743.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1744. 

  1745.     @pyqtSlot(bool)

  1746.     def slot_transportLinkEnabled(self, clicked):

  1747.         if not self.host.is_engine_running():

  1748.             return

  1749.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1750.         extra = ":link:" if clicked else ""

  1751.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1752. 

  1753.     # --------------------------------------------------------------------------------------------------------

  1754.     # Canvas scrollbars

  1755. 

  1756.     @pyqtSlot(int)

  1757.     def slot_horizontalScrollBarChanged(self, value):

  1758.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1759.         if maximum == 0:

  1760.             xp = 0

  1761.         else:

  1762.             xp = float(value) / maximum

  1763.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1764.         self.updateCanvasInitialPos()

  1765. 

  1766.     @pyqtSlot(int)

  1767.     def slot_verticalScrollBarChanged(self, value):

  1768.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1769.         if maximum == 0:

  1770.             yp = 0

  1771.         else:

  1772.             yp = float(value) / maximum

  1773.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1774.         self.updateCanvasInitialPos()

  1775. 

  1776.     # --------------------------------------------------------------------------------------------------------

  1777.     # Canvas keyboard

  1778. 

  1779.     @pyqtSlot(int)

  1780.     def slot_noteOn(self, note):

  1781.         for pluginId in self.fSelectedPlugins:

  1782.             self.host.send_midi_note(pluginId, 0, note, 100)

  1783. 

  1784.             pedit = self.getPluginEditDialog(pluginId)

  1785.             pedit.noteOn(0, note, 100)

  1786. 

  1787.     @pyqtSlot(int)

  1788.     def slot_noteOff(self, note):

  1789.         for pluginId in self.fSelectedPlugins:

  1790.             self.host.send_midi_note(pluginId, 0, note, 0)

  1791. 

  1792.             pedit = self.getPluginEditDialog(pluginId)

  1793.             pedit.noteOff(0, note)

  1794. 

  1795.     # --------------------------------------------------------------------------------------------------------

  1796.     # Canvas keyboard (host callbacks)

  1797. 

  1798.     @pyqtSlot(int, int, int, int)

  1799.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1800.         if pluginId in self.fSelectedPlugins:

  1801.             self.ui.keyboard.sendNoteOn(note, False)

  1802. 

  1803.     @pyqtSlot(int, int, int)

  1804.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1805.         if pluginId in self.fSelectedPlugins:

  1806.             self.ui.keyboard.sendNoteOff(note, False)

  1807. 

  1808.     # --------------------------------------------------------------------------------------------------------

  1809. 

  1810.     @pyqtSlot(int)

  1811.     def slot_handleUpdateCallback(self, pluginId):

  1812.         pitem = self.getPluginItem(pluginId)

  1813. 

  1814.         if pitem is None:

  1815.             return

  1816. 

  1817.         wasCompacted = pitem.isCompacted()

  1818.         isCompacted  = wasCompacted

  1819. 

  1820.         for i in range(self.host.get_custom_data_count(pluginId)):

  1821.             cdata = self.host.get_custom_data(pluginId, i)

  1822. 

  1823.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1824.                 isCompacted = bool(cdata['value'] == "true")

  1825.                 break

  1826.         else:

  1827.             return

  1828. 

  1829.         if wasCompacted == isCompacted:

  1830.             return

  1831. 

  1832.         pitem.recreateWidget(True)

  1833. 

  1834.     # --------------------------------------------------------------------------------------------------------

  1835.     # MiniCanvas stuff

  1836. 

  1837.     @pyqtSlot()

  1838.     def slot_miniCanvasCheckAll(self):

  1839.         self.slot_miniCanvasCheckSize()

  1840.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1841.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1842. 

  1843.     @pyqtSlot()

  1844.     def slot_miniCanvasCheckSize(self):

  1845.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1846.             return

  1847. 

  1848.         currentIndex = self.ui.tabWidget.currentIndex()

  1849. 

  1850.         if currentIndex == 1:

  1851.             width  = self.ui.graphicsView.width()

  1852.             height = self.ui.graphicsView.height()

  1853.         else:

  1854.             self.ui.tabWidget.blockSignals(True)

  1855.             self.ui.tabWidget.setCurrentIndex(1)

  1856.             width  = self.ui.graphicsView.width()

  1857.             height = self.ui.graphicsView.height()

  1858.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1859.             self.ui.tabWidget.blockSignals(False)

  1860. 

  1861.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1862. 

  1863.     @pyqtSlot(float, float)

  1864.     def slot_miniCanvasMoved(self, xp, yp):

  1865.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1866.         vsb = self.ui.graphicsView.verticalScrollBar()

  1867.         hsb.setValue(xp * hsb.maximum())

  1868.         vsb.setValue(yp * vsb.maximum())

  1869.         self.updateCanvasInitialPos()

  1870. 

  1871.     # --------------------------------------------------------------------------------------------------------

  1872.     # Timers

  1873. 

  1874.     def startTimers(self):

  1875.         if self.fIdleTimerFast == 0:

  1876.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1877. 

  1878.         if self.fIdleTimerSlow == 0:

  1879.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1880. 

  1881.     def restartTimersIfNeeded(self):

  1882.         if self.fIdleTimerFast != 0:

  1883.             self.killTimer(self.fIdleTimerFast)

  1884.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1885. 

  1886.         if self.fIdleTimerSlow != 0:

  1887.             self.killTimer(self.fIdleTimerSlow)

  1888.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1889. 

  1890.     def killTimers(self):

  1891.         if self.fIdleTimerFast != 0:

  1892.             self.killTimer(self.fIdleTimerFast)

  1893.             self.fIdleTimerFast = 0

  1894. 

  1895.         if self.fIdleTimerSlow != 0:

  1896.             self.killTimer(self.fIdleTimerSlow)

  1897.             self.fIdleTimerSlow = 0

  1898. 

  1899.     # --------------------------------------------------------------------------------------------------------

  1900.     # Misc

  1901. 

  1902.     @pyqtSlot(int)

  1903.     def slot_tabChanged(self, index):

  1904.         if index != 1:

  1905.             return

  1906. 

  1907.         self.ui.graphicsView.setFocus()

  1908. 

  1909.     @pyqtSlot(int)

  1910.     def slot_handleReloadAllCallback(self, pluginId):

  1911.         if pluginId >= self.fPluginCount:

  1912.             return

  1913. 

  1914.         pitem = self.fPluginList[pluginId]

  1915.         if pitem is None:

  1916.             return

  1917. 

  1918.         pitem.recreateWidget()

  1919. 

  1920.     # --------------------------------------------------------------------------------------------------------

  1921. 

  1922.     @pyqtSlot(int, int, str)

  1923.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  1924.         # Error

  1925.         if value1 == 0:

  1926.             pass

  1927. 

  1928.         # Reply

  1929.         elif value1 == 1:

  1930.             self.fFirstEngineInit    = False

  1931.             self.fSessionManagerName = valueStr

  1932.             self.setProperWindowTitle()

  1933. 

  1934.         # Open

  1935.         elif value1 == 2:

  1936.             self.fClientName      = os.path.basename(valueStr)

  1937.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  1938.             self.setProperWindowTitle()

  1939. 

  1940.             self.fCustomStopAction = 2

  1941.             self.slot_engineStop(True)

  1942.             return

  1943. 

  1944.         # Save

  1945.         elif value1 == 3:

  1946.             self.saveProjectNow()

  1947. 

  1948.         # Session is Loaded

  1949.         elif value1 == 4:

  1950.             pass

  1951. 

  1952.         # Show Optional Gui

  1953.         elif value1 == 5:

  1954.             self.show()

  1955. 

  1956.         # Hide Optional Gui

  1957.         elif value1 == 6:

  1958.             self.hide()

  1959. 

  1960.         self.host.nsm_ready(value1)

  1961. 

  1962.     # --------------------------------------------------------------------------------------------------------

  1963. 

  1964.     def fixLogText(self, text):

  1965.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  1966. 

  1967.     @pyqtSlot(int, int, int, float, str)

  1968.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1969.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  1970. 

  1971.     @pyqtSlot(str)

  1972.     def slot_handleInfoCallback(self, info):

  1973.         QMessageBox.information(self, "Information", info)

  1974. 

  1975.     @pyqtSlot(str)

  1976.     def slot_handleErrorCallback(self, error):

  1977.         QMessageBox.critical(self, "Error", error)

  1978. 

  1979.     @pyqtSlot()

  1980.     def slot_handleQuitCallback(self):

  1981.         pass # TODO

  1982. 

  1983.     # --------------------------------------------------------------------------------------------------------

  1984. 

  1985.     @pyqtSlot()

  1986.     def slot_handleSIGUSR1(self):

  1987.         print("Got SIGUSR1 -> Saving project now")

  1988.         self.slot_fileSave()

  1989. 

  1990.     @pyqtSlot()

  1991.     def slot_handleSIGTERM(self):

  1992.         print("Got SIGTERM -> Closing now")

  1993.         self.fCustomStopAction = 1

  1994.         self.slot_engineStop(True)

  1995. 

  1996.     # --------------------------------------------------------------------------------------------------------

  1997.     # Internal stuff

  1998. 

  1999.     def getExtraPtr(self, plugin):

  2000.         ptype = plugin['type']

  2001. 

  2002.         if ptype == PLUGIN_LADSPA:

  2003.             uniqueId = plugin['uniqueId']

  2004. 

  2005.             self.maybeLoadRDFs()

  2006. 

  2007.             for rdfItem in self.fLadspaRdfList:

  2008.                 if rdfItem.UniqueID == uniqueId:

  2009.                     return pointer(rdfItem)

  2010. 

  2011.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  2012.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2013.                 return self._true

  2014. 

  2015.         return None

  2016. 

  2017.     def maybeLoadRDFs(self):

  2018.         if not self.fLadspaRdfNeedsUpdate:

  2019.             return

  2020. 

  2021.         self.fLadspaRdfNeedsUpdate = False

  2022.         self.fLadspaRdfList = []

  2023. 

  2024.         if not haveLRDF:

  2025.             return

  2026. 

  2027.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2028.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2029. 

  2030.         if os.path.exists(frLadspaFile):

  2031.             frLadspa = open(frLadspaFile, 'r')

  2032. 

  2033.             try:

  2034.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2035.             except:

  2036.                 pass

  2037. 

  2038.             frLadspa.close()

  2039. 

  2040.     # --------------------------------------------------------------------------------------------------------

  2041. 

  2042.     def getPluginItem(self, pluginId):

  2043.         if pluginId >= self.fPluginCount:

  2044.             return None

  2045. 

  2046.         pitem = self.fPluginList[pluginId]

  2047.         if pitem is None:

  2048.             return None

  2049.         #if False:

  2050.             #return CarlaRackItem(self, 0, False)

  2051. 

  2052.         return pitem

  2053. 

  2054.     def getPluginEditDialog(self, pluginId):

  2055.         if pluginId >= self.fPluginCount:

  2056.             return None

  2057. 

  2058.         pitem = self.fPluginList[pluginId]

  2059.         if pitem is None:

  2060.             return None

  2061.         if False:

  2062.             return PluginEdit(self, self.host, 0)

  2063. 

  2064.         return pitem.getEditDialog()

  2065. 

  2066.     def getPluginSlotWidget(self, pluginId):

  2067.         if pluginId >= self.fPluginCount:

  2068.             return None

  2069. 

  2070.         pitem = self.fPluginList[pluginId]

  2071.         if pitem is None:

  2072.             return None

  2073.         #if False:

  2074.             #return AbstractPluginSlot()

  2075. 

  2076.         return pitem.getWidget()

  2077. 

  2078.     # --------------------------------------------------------------------------------------------------------

  2079. 

  2080.     def waitForPendingEvents(self):

  2081.         pass

  2082. 

  2083.     # --------------------------------------------------------------------------------------------------------

  2084.     # show/hide event

  2085. 

  2086.     def showEvent(self, event):

  2087.         self.refreshTransport(True)

  2088.         QMainWindow.showEvent(self, event)

  2089. 

  2090.         # set our gui as parent for all plugins UIs

  2091.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2092.             winIdStr = "%x" % int(self.winId())

  2093.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2094. 

  2095.     def hideEvent(self, event):

  2096.         # disable parent

  2097.         if not (self.host.isControl or self.host.isPlugin):

  2098.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2099. 

  2100.         QMainWindow.hideEvent(self, event)

  2101. 

  2102.     # --------------------------------------------------------------------------------------------------------

  2103.     # resize event

  2104. 

  2105.     def fixCanvasPreviewSize(self):

  2106.         self.ui.patchbay.resize(self.ui.rack.size())

  2107.         self.slot_miniCanvasCheckSize()

  2108. 

  2109.     def resizeEvent(self, event):

  2110.         QMainWindow.resizeEvent(self, event)

  2111. 

  2112.         if self.ui.tabWidget.currentIndex() != 1:

  2113.             size = self.ui.rack.size()

  2114.             self.ui.patchbay.resize(size)

  2115. 

  2116.         self.slot_miniCanvasCheckSize()

  2117. 

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

  2119.     # timer event

  2120. 

  2121.     def idleFast(self):

  2122.         self.host.engine_idle()

  2123.         self.refreshTransport()

  2124. 

  2125.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2126.             return

  2127. 

  2128.         for pitem in self.fPluginList:

  2129.             if pitem is None:

  2130.                 break

  2131. 

  2132.             pitem.getWidget().idleFast()

  2133. 

  2134.         for pluginId in self.fSelectedPlugins:

  2135.             self.fPeaksCleared = False

  2136.             if self.ui.peak_in.isVisible():

  2137.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2138.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2139.             if self.ui.peak_out.isVisible():

  2140.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2141.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2142.             return

  2143. 

  2144.         if self.fPeaksCleared:

  2145.             return

  2146. 

  2147.         self.fPeaksCleared = True

  2148.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2149.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2150.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2151.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2152. 

  2153.     def idleSlow(self):

  2154.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2155.             return

  2156. 

  2157.         for pitem in self.fPluginList:

  2158.             if pitem is None:

  2159.                 break

  2160. 

  2161.             pitem.getWidget().idleSlow()

  2162. 

  2163.     def timerEvent(self, event):

  2164.         if event.timerId() == self.fIdleTimerFast:

  2165.             self.idleFast()

  2166. 

  2167.         elif event.timerId() == self.fIdleTimerSlow:

  2168.             self.idleSlow()

  2169. 

  2170.         QMainWindow.timerEvent(self, event)

  2171. 

  2172.     # --------------------------------------------------------------------------------------------------------

  2173.     # paint event

  2174. 

  2175.     #def paintEvent(self, event):

  2176.         #QMainWindow.paintEvent(self, event)

  2177. 

  2178.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2179.             #return

  2180. 

  2181.         #painter = QPainter(self)

  2182.         #painter.setBrush(QColor(36, 36, 36))

  2183.         #painter.setPen(QColor(62, 62, 62))

  2184.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2185. 

  2186.     # --------------------------------------------------------------------------------------------------------

  2187.     # close event

  2188. 

  2189.     def closeEvent(self, event):

  2190.         self.killTimers()

  2191.         self.saveSettings()

  2192. 

  2193.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2194.             if not self.slot_engineStop(True):

  2195.                 self.fCustomStopAction = 1

  2196.                 event.ignore()

  2197.                 return

  2198. 

  2199.         QMainWindow.closeEvent(self, event)

  2200. 

  2201. # ------------------------------------------------------------------------------------------------

  2202. # Canvas callback

  2203. 

  2204. def canvasCallback(action, value1, value2, valueStr):

  2205.     host = gCarla.gui.host

  2206. 

  2207.     if action == patchcanvas.ACTION_GROUP_INFO:

  2208.         pass

  2209. 

  2210.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2211.         pass

  2212. 

  2213.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2214.         groupId = value1

  2215.         patchcanvas.splitGroup(groupId)

  2216.         gCarla.gui.updateMiniCanvasLater()

  2217. 

  2218.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2219.         groupId = value1

  2220.         patchcanvas.joinGroup(groupId)

  2221.         gCarla.gui.updateMiniCanvasLater()

  2222. 

  2223.     elif action == patchcanvas.ACTION_PORT_INFO:

  2224.         pass

  2225. 

  2226.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2227.         pass

  2228. 

  2229.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2230.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2231. 

  2232.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2233.             print("Connection failed:", host.get_last_error())

  2234. 

  2235.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2236.         connectionId = value1

  2237. 

  2238.         if not host.patchbay_disconnect(connectionId):

  2239.             print("Disconnect failed:", host.get_last_error())

  2240. 

  2241.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2242.         pluginId = value1

  2243. 

  2244.         if not host.clone_plugin(pluginId):

  2245.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2246.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2247. 

  2248.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2249.         pluginId = value1

  2250.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2251. 

  2252.         if pwidget is not None:

  2253.             pwidget.showEditDialog()

  2254. 

  2255.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2256.         pluginId = value1

  2257.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2258. 

  2259.         if pwidget is not None:

  2260.             pwidget.showRenameDialog()

  2261. 

  2262.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2263.         pluginId = value1

  2264.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2265. 

  2266.         if pwidget is not None:

  2267.             pwidget.showReplaceDialog()

  2268. 

  2269.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2270.         pluginId = value1

  2271. 

  2272.         if not host.remove_plugin(pluginId):

  2273.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2274.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2275. 

  2276.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2277.         pluginId = value1

  2278.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2279. 

  2280.         if pwidget is not None:

  2281.             pwidget.showCustomUI()

  2282. 

  2283.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2284.         gCarla.gui.showPluginActionsMenu()

  2285. 

  2286. # ------------------------------------------------------------------------------------------------------------

  2287. # Engine callback

  2288. 

  2289. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2290.     # kdevelop likes this :)

  2291.     if False: host = CarlaHostNull()

  2292. 

  2293.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2294.         host.processMode   = value1

  2295.         host.transportMode = value2

  2296.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2297.         host.processMode   = value1

  2298.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2299.         host.transportMode = value1

  2300. 

  2301.     valueStr = charPtrToString(valueStr)

  2302. 

  2303.     if action == ENGINE_CALLBACK_DEBUG:

  2304.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2305.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2306.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2307.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2308.         host.PluginRemovedCallback.emit(pluginId)

  2309.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2310.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2311.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2312.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2313.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2314.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2315.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2316.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2317.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2318.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2319.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2320.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2321.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2322.         host.ProgramChangedCallback.emit(pluginId, value1)

  2323.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2324.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2325.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2326.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2327.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2328.         host.UiStateChangedCallback.emit(pluginId, value1)

  2329.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2330.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2331.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2332.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2333.     elif action == ENGINE_CALLBACK_UPDATE:

  2334.         host.UpdateCallback.emit(pluginId)

  2335.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2336.         host.ReloadInfoCallback.emit(pluginId)

  2337.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2338.         host.ReloadParametersCallback.emit(pluginId)

  2339.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2340.         host.ReloadProgramsCallback.emit(pluginId)

  2341.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2342.         host.ReloadAllCallback.emit(pluginId)

  2343.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2344.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2345.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2346.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2347.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2348.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2349.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2350.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2351.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2352.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2353.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2354.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2355.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2356.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2357.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2358.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2359.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2360.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2361.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2362.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2363.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  2364.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2365.         host.EngineStoppedCallback.emit()

  2366.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2367.         host.ProcessModeChangedCallback.emit(value1)

  2368.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2369.         host.TransportModeChangedCallback.emit(value1)

  2370.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2371.         host.BufferSizeChangedCallback.emit(value1)

  2372.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2373.         host.SampleRateChangedCallback.emit(value3)

  2374.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2375.         host.ProjectLoadFinishedCallback.emit()

  2376.     elif action == ENGINE_CALLBACK_NSM:

  2377.         host.NSMCallback.emit(value1, value2, valueStr)

  2378.     elif action == ENGINE_CALLBACK_IDLE:

  2379.         QApplication.instance().processEvents()

  2380.     elif action == ENGINE_CALLBACK_INFO:

  2381.         host.InfoCallback.emit(valueStr)

  2382.     elif action == ENGINE_CALLBACK_ERROR:

  2383.         host.ErrorCallback.emit(valueStr)

  2384.     elif action == ENGINE_CALLBACK_QUIT:

  2385.         host.QuitCallback.emit()

  2386. 

  2387. # ------------------------------------------------------------------------------------------------------------

  2388. # File callback

  2389. 

  2390. def fileCallback(ptr, action, isDir, title, filter):

  2391.     ret = ("", "") if config_UseQt5 else ""

  2392. 

  2393.     if action == FILE_CALLBACK_DEBUG:

  2394.         pass

  2395.     elif action == FILE_CALLBACK_OPEN:

  2396.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2397.     elif action == FILE_CALLBACK_SAVE:

  2398.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  2399. 

  2400.     if config_UseQt5:

  2401.         ret = ret[0]

  2402.     if not ret:

  2403.         return None

  2404. 

  2405.     # FIXME

  2406.     global fileRet

  2407.     fileRet = c_char_p(ret.encode("utf-8"))

  2408.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2409.     return retval.contents.value

  2410. 

  2411. # ------------------------------------------------------------------------------------------------------------

  2412. # Init host

  2413. 

  2414. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2415.     pathBinaries, pathResources = getPaths(libPrefix)

  2416. 

  2417.     # --------------------------------------------------------------------------------------------------------

  2418.     # Check if we should open main lib as local or global

  2419. 

  2420.     settings = QSettings("falkTX", "Carla2")

  2421. 

  2422.     try:

  2423.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2424.     except:

  2425.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2426. 

  2427.     # --------------------------------------------------------------------------------------------------------

  2428.     # Fail if binary dir is not found

  2429. 

  2430.     if not os.path.exists(pathBinaries):

  2431.         if failError:

  2432.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2433.             sys.exit(1)

  2434.         return

  2435. 

  2436.     # --------------------------------------------------------------------------------------------------------

  2437.     # Set Carla library name

  2438. 

  2439.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2440.     libname   = os.path.join(pathBinaries, libname)

  2441.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2442. 

  2443.     # --------------------------------------------------------------------------------------------------------

  2444.     # Print info

  2445. 

  2446.     print("Carla %s started, status:" % VERSION)

  2447.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2448.     print("  Qt version:     %s" % qVersion())

  2449.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2450.     print("  Binary dir:     %s" % pathBinaries)

  2451.     print("  Resources dir:  %s" % pathResources)

  2452. 

  2453.     # --------------------------------------------------------------------------------------------------------

  2454.     # Init host

  2455. 

  2456.     if failError:

  2457.         # no try

  2458.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2459.     else:

  2460.         try:

  2461.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2462.         except:

  2463.             host = CarlaHostQtNull()

  2464. 

  2465.     host.isControl = isControl

  2466.     host.isPlugin  = isPlugin

  2467. 

  2468.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2469.     host.set_file_callback(fileCallback)

  2470. 

  2471.     # If it's a plugin the paths are already set

  2472.     if not isPlugin:

  2473.         host.pathBinaries  = pathBinaries

  2474.         host.pathResources = pathResources

  2475.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2476.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2477. 

  2478.         if not isControl:

  2479.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2480. 

  2481.     # --------------------------------------------------------------------------------------------------------

  2482.     # Init utils

  2483. 

  2484.     gCarla.utils = CarlaUtils(utilsname)

  2485.     gCarla.utils.set_process_name(os.path.basename(initName))

  2486. 

  2487.     try:

  2488.         sys.stdout.flush()

  2489.     except:

  2490.         pass

  2491. 

  2492.     sys.stdout = CarlaPrint(False)

  2493.     sys.stderr = CarlaPrint(True)

  2494. 

  2495.     # --------------------------------------------------------------------------------------------------------

  2496.     # Done

  2497. 

  2498.     return host

  2499. 

  2500. # ------------------------------------------------------------------------------------------------------------

  2501. # Load host settings

  2502. 

  2503. def loadHostSettings(host):

  2504.     # kdevelop likes this :)

  2505.     if False: host = CarlaHostNull()

  2506. 

  2507.     settings = QSettings("falkTX", "Carla2")

  2508. 

  2509.     try:

  2510.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2511.     except:

  2512.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2513. 

  2514.     try:

  2515.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2516.     except:

  2517.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2518. 

  2519.     try:

  2520.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2521.     except:

  2522.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2523. 

  2524.     try:

  2525.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2526.     except:

  2527.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2528. 

  2529.     try:

  2530.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2531.     except:

  2532.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2533. 

  2534.     try:

  2535.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2536.     except:

  2537.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2538. 

  2539.     try:

  2540.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2541.     except:

  2542.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2543. 

  2544.     try:

  2545.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2546.     except:

  2547.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2548. 

  2549.     try:

  2550.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2551.     except:

  2552.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2553. 

  2554.     try:

  2555.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2556.     except:

  2557.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2558. 

  2559.     try:

  2560.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2561.     except:

  2562.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2563. 

  2564.     try:

  2565.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2566.     except:

  2567.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2568. 

  2569.     try:

  2570.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2571.     except:

  2572.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2573. 

  2574.     if host.isPlugin:

  2575.         return

  2576. 

  2577.     # enums

  2578.     if host.audioDriverForced is None:

  2579.         try:

  2580.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2581.         except:

  2582.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2583. 

  2584.     if not host.processModeForced:

  2585.         try:

  2586.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2587.         except:

  2588.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2589. 

  2590.     host.nextProcessMode = host.processMode

  2591. 

  2592.     # --------------------------------------------------------------------------------------------------------

  2593.     # fix things if needed

  2594. 

  2595.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2596.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2597.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2598. 

  2599.     # --------------------------------------------------------------------------------------------------------

  2600.     # run headless host now if nogui option enabled

  2601. 

  2602.     if gCarla.nogui:

  2603.         runHostWithoutUI(host)

  2604. 

  2605. # ------------------------------------------------------------------------------------------------------------

  2606. # Set host settings

  2607. 

  2608. def setHostSettings(host):

  2609.     # kdevelop likes this :)

  2610.     if False: host = CarlaHostNull()

  2611. 

  2612.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2613.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2614.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2615.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2616.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2617.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2618.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2619.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2620. 

  2621.     if host.isPlugin:

  2622.         return

  2623. 

  2624.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2625.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2626. 

  2627. # ------------------------------------------------------------------------------------------------------------

  2628. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2629. 

  2630. def setEngineSettings(host):

  2631.     # kdevelop likes this :)

  2632.     if False: host = CarlaHostNull()

  2633. 

  2634.     # --------------------------------------------------------------------------------------------------------

  2635.     # do nothing if control

  2636. 

  2637.     if host.isControl:

  2638.         return "Control"

  2639. 

  2640.     # --------------------------------------------------------------------------------------------------------

  2641. 

  2642.     settings = QSettings("falkTX", "Carla2")

  2643. 

  2644.     # --------------------------------------------------------------------------------------------------------

  2645.     # main settings

  2646. 

  2647.     setHostSettings(host)

  2648. 

  2649.     # --------------------------------------------------------------------------------------------------------

  2650.     # plugin paths

  2651. 

  2652.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2653.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2654.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2655.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2656.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2657.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2658.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2659. 

  2660.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2661.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2662.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2663.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2664.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2665.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2666.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2667. 

  2668.     # --------------------------------------------------------------------------------------------------------

  2669.     # don't continue if plugin

  2670. 

  2671.     if host.isPlugin:

  2672.         return "Plugin"

  2673. 

  2674.     # --------------------------------------------------------------------------------------------------------

  2675.     # driver and device settings

  2676. 

  2677.     # driver name

  2678.     if host.audioDriverForced is not None:

  2679.         audioDriver = host.audioDriverForced

  2680.     else:

  2681.         try:

  2682.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2683.         except:

  2684.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2685. 

  2686.     # driver options

  2687.     try:

  2688.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2689.     except:

  2690.         audioDevice = ""

  2691. 

  2692.     try:

  2693.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2694.     except:

  2695.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2696. 

  2697.     try:

  2698.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2699.     except:

  2700.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2701. 

  2702.     try:

  2703.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2704.     except:

  2705.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2706. 

  2707.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2708.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2709.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2710.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2711. 

  2712.     # --------------------------------------------------------------------------------------------------------

  2713.     # fix things if needed

  2714. 

  2715.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2716.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2717.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2718. 

  2719.     # --------------------------------------------------------------------------------------------------------

  2720.     # wine settings

  2721. 

  2722.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2723.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2724.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2725.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2726.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2727.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2728. 

  2729.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2730.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2731.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2732.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2733.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2734.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2735. 

  2736.     # --------------------------------------------------------------------------------------------------------

  2737.     # return selected driver name

  2738. 

  2739.     return audioDriver

  2740. 

  2741. # ------------------------------------------------------------------------------------------------------------

  2742. # Run Carla without showing UI

  2743. 

  2744. def runHostWithoutUI(host):

  2745.     # kdevelop likes this :)

  2746.     if False: host = CarlaHostNull()

  2747. 

  2748.     # --------------------------------------------------------------------------------------------------------

  2749.     # Some initial checks

  2750. 

  2751.     if not gCarla.nogui:

  2752.         return

  2753. 

  2754.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2755. 

  2756.     if not projectFile:

  2757.         print("Carla no-gui mode can only be used together with a project file.")

  2758.         sys.exit(1)

  2759. 

  2760.     # --------------------------------------------------------------------------------------------------------

  2761.     # Additional imports

  2762. 

  2763.     from time import sleep

  2764. 

  2765.     # --------------------------------------------------------------------------------------------------------

  2766.     # Init engine

  2767. 

  2768.     audioDriver = setEngineSettings(host)

  2769.     if not host.engine_init(audioDriver, "Carla-nogui"):

  2770.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2771.         sys.exit(1)

  2772. 

  2773.     if not host.load_project(projectFile):

  2774.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2775.         host.engine_close()

  2776.         sys.exit(1)

  2777. 

  2778.     # --------------------------------------------------------------------------------------------------------

  2779.     # Idle

  2780. 

  2781.     while host.is_engine_running() and not gCarla.term:

  2782.         host.engine_idle()

  2783.         sleep(0.5)

  2784. 

  2785.     # --------------------------------------------------------------------------------------------------------

  2786.     # Stop

  2787. 

  2788.     host.engine_close()

  2789.     sys.exit(0)

  2790. 

  2791. # ------------------------------------------------------------------------------------------------------------