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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. # Safe exception hook, needed for PyQt5

  65. 

  66. def sys_excepthook(type, value, tback):

  67.     return sys.__excepthook__(type, value, tback)

  68. 

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

  70. # Session Management support

  71. 

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

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

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

  75. 

  76. # ------------------------------------------------------------------------------------------------------------

  77. # Carla Print class

  78. 

  79. class CarlaPrint:

  80.     def __init__(self, err):

  81.         self.err = err

  82. 

  83.     def flush(self):

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

  85. 

  86.     def write(self, string):

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

  88. 

  89. # ------------------------------------------------------------------------------------------------------------

  90. # Host Window

  91. 

  92. class HostWindow(QMainWindow):

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

  94.     # signals

  95.     SIGTERM = pyqtSignal()

  96.     SIGUSR1 = pyqtSignal()

  97. 

  98.     # --------------------------------------------------------------------------------------------------------

  99. 

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

  101.         QMainWindow.__init__(self, parent)

  102.         self.host = host

  103.         self.ui = ui_carla_host.Ui_CarlaHostW()

  104.         self.ui.setupUi(self)

  105.         gCarla.gui = self

  106. 

  107.         if False:

  108.             # kdevelop likes this :)

  109.             host = CarlaHostNull()

  110.             self.host = host

  111. 

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

  113. 

  114.         self.fParentOrSelf = parent or self

  115. 

  116.         # ----------------------------------------------------------------------------------------------------

  117.         # Internal stuff

  118. 

  119.         self.fIdleTimerFast = 0

  120.         self.fIdleTimerSlow = 0

  121. 

  122.         self.fLadspaRdfNeedsUpdate = True

  123.         self.fLadspaRdfList = []

  124. 

  125.         self.fPluginCount = 0

  126.         self.fPluginList  = []

  127. 

  128.         self.fProjectFilename  = ""

  129.         self.fIsProjectLoading = False

  130.         self.fCurrentlyRemovingAllPlugins = False

  131. 

  132.         self.fLastTransportBPM   = 0.0

  133.         self.fLastTransportFrame = 0

  134.         self.fLastTransportState = False

  135.         self.fSampleRate         = 0.0

  136. 

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

  138.         # 1 for close carla, 2 for load project

  139.         self.fCustomStopAction = 0

  140. 

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

  142.         self.fFirstEngineInit = True

  143. 

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

  145.         self.fSavedSettings = {}

  146. 

  147.         if host.isControl:

  148.             self.fClientName         = "Carla-Control"

  149.             self.fSessionManagerName = "Control"

  150.         elif host.isPlugin:

  151.             self.fClientName         = "Carla-Plugin"

  152.             self.fSessionManagerName = "Plugin"

  153.         elif LADISH_APP_NAME:

  154.             self.fClientName         = LADISH_APP_NAME

  155.             self.fSessionManagerName = "LADISH"

  156.         elif NSM_URL and host.nsmOK:

  157.             self.fClientName         = "Carla.tmp"

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

  159.         else:

  160.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  161.             self.fSessionManagerName = ""

  162. 

  163.         # ----------------------------------------------------------------------------------------------------

  164.         # Internal stuff (patchbay)

  165. 

  166.         self.fExportImage = QImage()

  167. 

  168.         self.fPeaksCleared = True

  169. 

  170.         self.fExternalPatchbay = False

  171.         self.fSelectedPlugins  = []

  172. 

  173.         self.fCanvasWidth  = 0

  174.         self.fCanvasHeight = 0

  175.         self.fMiniCanvasUpdateTimeout = 0

  176. 

  177.         self.fWithCanvas = withCanvas

  178. 

  179.         # ----------------------------------------------------------------------------------------------------

  180.         # Set up GUI (engine stopped)

  181. 

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

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

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

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

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

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

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

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

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

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

  192. 

  193.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

  204.             else:

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

  206. 

  207.         else:

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

  209. 

  210.             if WINDOWS:

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

  212. 

  213.         if not self.host.isControl:

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

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

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

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

  218. 

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

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

  221. 

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

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

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

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

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

  227. 

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

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

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

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

  232. 

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

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

  235. 

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

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

  238. 

  239.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  257.             self.ui.miniCanvasPreview.hide()

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

  259.             if WINDOWS:

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

  261. 

  262.             if host.isControl:

  263.                 self.ui.dockWidget.hide()

  264. 

  265.         # ----------------------------------------------------------------------------------------------------

  266.         # Set up GUI (disk)

  267. 

  268.         self.fDirModel = QFileSystemModel(self)

  269.         self.fDirModel.setRootPath(HOME)

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

  271. 

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

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

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

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

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

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

  278. 

  279.         # ----------------------------------------------------------------------------------------------------

  280.         # Set up GUI (transport)

  281. 

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

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

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

  285. 

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

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

  288. 

  289.         if minLabelWidth < labelTimeWidth:

  290.             minLabelWidth = labelTimeWidth

  291.         if minLabelWidth < labelBBTWidth:

  292.             minLabelWidth = labelBBTWidth

  293. 

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

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

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

  297. 

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

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

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

  301. 

  302.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

  309. 

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

  311. 

  312.         # ----------------------------------------------------------------------------------------------------

  313.         # Set up GUI (rack)

  314. 

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

  316. 

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

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

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

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

  321. 

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

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

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

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

  326. 

  327.         self.ui.rack.setStyleSheet("""

  328.           QLabel#pad_left {

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

  330.             background-repeat: repeat-y;

  331.           }

  332.           QLabel#pad_right {

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

  334.             background-repeat: repeat-y;

  335.           }

  336.           CarlaRackList#CarlaRackList {

  337.             background-color: black;

  338.           }

  339.         """)

  340. 

  341.         # ----------------------------------------------------------------------------------------------------

  342.         # Set up GUI (patchbay)

  343. 

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

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

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

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

  348. 

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

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

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

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

  353. 

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

  355.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  357. 

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

  359. 

  360.         self.ui.miniCanvasPreview.setRealParent(self)

  361. 

  362.         # ----------------------------------------------------------------------------------------------------

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

  364. 

  365.         if MACOS:

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

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

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

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

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

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

  372. 

  373.         # ----------------------------------------------------------------------------------------------------

  374.         # Load Settings

  375. 

  376.         self.loadSettings(True)

  377. 

  378.         # ----------------------------------------------------------------------------------------------------

  379.         # Set-up Canvas

  380. 

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

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

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

  384. 

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

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

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

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

  389. 

  390.         self.setupCanvas()

  391. 

  392.         # ----------------------------------------------------------------------------------------------------

  393.         # Connect actions to functions

  394. 

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

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

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

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

  399. 

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

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

  402. 

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

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

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

  406. 

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

  408. 

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

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

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

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

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

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

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

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

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

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

  419. 

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

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

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

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

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

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

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

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

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

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

  430. 

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

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

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

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

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

  436. 

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

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

  439. 

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

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

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

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

  444. 

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

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

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

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

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

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

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

  452. 

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

  454. 

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

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

  457. 

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

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

  460. 

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

  462. 

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

  464. 

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

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

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

  468. 

  469.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  470.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  471. 

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

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

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

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

  476. 

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

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

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

  480. 

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

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

  483. 

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

  485. 

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

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

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

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

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

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

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

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

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

  495. 

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

  497. 

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

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

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

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

  502. 

  503.         # ----------------------------------------------------------------------------------------------------

  504.         # Final setup

  505. 

  506.         self.ui.text_logs.clear()

  507.         self.setProperWindowTitle()

  508. 

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

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

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

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

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

  514. 

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

  516.         if self.host.isPlugin:

  517.             self.startTimers()

  518. 

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

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

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

  522. 

  523.         # Load initial project file if set

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

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

  526. 

  527.             if projectFile:

  528.                 self.loadProjectLater(projectFile)

  529. 

  530.         # For NSM we wait for the open message

  531.         if NSM_URL and host.nsmOK:

  532.             host.nsm_ready(-1)

  533.             return

  534. 

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

  536. 

  537.     # --------------------------------------------------------------------------------------------------------

  538.     # Setup

  539. 

  540.     def compactPlugin(self, pluginId):

  541.         if pluginId > self.fPluginCount:

  542.             return

  543. 

  544.         pitem = self.fPluginList[pluginId]

  545. 

  546.         if pitem is None:

  547.             return

  548. 

  549.         pitem.recreateWidget(True)

  550. 

  551.     def setLoadRDFsNeeded(self):

  552.         self.fLadspaRdfNeedsUpdate = True

  553. 

  554.     def setProperWindowTitle(self):

  555.         title = self.fClientName

  556. 

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

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

  559.         if self.fSessionManagerName:

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

  561. 

  562.         self.setWindowTitle(title)

  563. 

  564.     # --------------------------------------------------------------------------------------------------------

  565.     # Files

  566. 

  567.     def makeExtraFilename(self):

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

  569. 

  570.     def loadProjectNow(self):

  571.         if not self.fProjectFilename:

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

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

  574.             return

  575. 

  576.         self.projectLoadingStarted()

  577.         self.fIsProjectLoading = True

  578.         self.host.load_project(self.fProjectFilename)

  579. 

  580.         # Project finished loading is sent by engine

  581. 

  582.     def loadProjectLater(self, filename):

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

  584.         self.setProperWindowTitle()

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

  586. 

  587.     def saveProjectNow(self):

  588.         if not self.fProjectFilename:

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

  590. 

  591.         self.host.save_project(self.fProjectFilename)

  592. 

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

  594.             json.dump({

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

  596.             }, fh)

  597. 

  598.     def projectLoadingStarted(self):

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

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

  601. 

  602.     def projectLoadingFinished(self):

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

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

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

  606. 

  607.         extrafile = self.makeExtraFilename()

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

  609.             return

  610. 

  611.         try:

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

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

  614.         except:

  615.             return

  616. 

  617.         patchcanvas.restoreGroupPositions(canvasdata)

  618. 

  619.     # --------------------------------------------------------------------------------------------------------

  620.     # Files (menu actions)

  621. 

  622.     @pyqtSlot()

  623.     def slot_fileNew(self):

  624.         self.slot_pluginRemoveAll()

  625.         self.fProjectFilename = ""

  626.         self.setProperWindowTitle()

  627. 

  628.     @pyqtSlot()

  629.     def slot_fileOpen(self):

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

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

  632. 

  633.         if config_UseQt5:

  634.             filename = filename[0]

  635.         if not filename:

  636.             return

  637. 

  638.         newFile = True

  639. 

  640.         if self.fPluginCount > 0:

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

  642.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  644. 

  645.         if newFile:

  646.             self.slot_pluginRemoveAll()

  647.             self.fProjectFilename = filename

  648.             self.setProperWindowTitle()

  649.             self.loadProjectNow()

  650.         else:

  651.             filenameOld = self.fProjectFilename

  652.             self.fProjectFilename = filename

  653.             self.loadProjectNow()

  654.             self.fProjectFilename = filenameOld

  655. 

  656.     @pyqtSlot()

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

  658.         if self.fProjectFilename and not saveAs:

  659.             return self.saveProjectNow()

  660. 

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

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

  663. 

  664.         if config_UseQt5:

  665.             filename = filename[0]

  666.         if not filename:

  667.             return

  668. 

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

  670.             filename += ".carxp"

  671. 

  672.         if self.fProjectFilename != filename:

  673.             self.fProjectFilename = filename

  674.             self.setProperWindowTitle()

  675. 

  676.         self.saveProjectNow()

  677. 

  678.     @pyqtSlot()

  679.     def slot_fileSaveAs(self):

  680.         self.slot_fileSave(True)

  681. 

  682.     @pyqtSlot()

  683.     def slot_loadProjectNow(self):

  684.         self.loadProjectNow()

  685. 

  686.     # --------------------------------------------------------------------------------------------------------

  687.     # Engine (menu actions)

  688. 

  689.     @pyqtSlot()

  690.     def slot_engineStart(self):

  691.         audioDriver = setEngineSettings(self.host)

  692.         firstInit   = self.fFirstEngineInit

  693. 

  694.         self.fFirstEngineInit = False

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

  696. 

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

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

  699.             return

  700. 

  701.         elif firstInit:

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

  703.             return

  704. 

  705.         audioError = self.host.get_last_error()

  706. 

  707.         if audioError:

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

  709.         else:

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

  711. 

  712.     @pyqtSlot()

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

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

  715. 

  716.         if self.fPluginCount == 0:

  717.             self.engineStopFinal()

  718.             return True

  719. 

  720.         if not forced:

  721.             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"

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

  723.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  724.             if ask != QMessageBox.Yes:

  725.                 return False

  726. 

  727.         return self.slot_engineStopTryAgain()

  728. 

  729.     @pyqtSlot()

  730.     def slot_engineStopTryAgain(self):

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

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

  733.             return False

  734. 

  735.         self.engineStopFinal()

  736.         return True

  737. 

  738.     def engineStopFinal(self):

  739.         self.killTimers()

  740.         self.removeAllPlugins()

  741. 

  742.         if self.host.is_engine_running():

  743.             self.host.remove_all_plugins()

  744. 

  745.             if self.host.engine_close():

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

  747.             else:

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

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

  750. 

  751.         if self.fCustomStopAction == 1:

  752.             self.close()

  753.         elif self.fCustomStopAction == 2:

  754.             self.slot_engineStart()

  755.             self.loadProjectNow()

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

  757. 

  758.         self.fCustomStopAction = 0

  759. 

  760.     # --------------------------------------------------------------------------------------------------------

  761.     # Engine (host callbacks)

  762. 

  763.     @pyqtSlot(int, int, str)

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

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

  766. 

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

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

  769. 

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

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

  772. 

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

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

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

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

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

  778.         else:

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

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

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

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

  783. 

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

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

  786. 

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

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

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

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

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

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

  793. 

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

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

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

  797. 

  798.         self.refreshTransport(True)

  799. 

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

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

  802. 

  803.         self.startTimers()

  804. 

  805.     @pyqtSlot()

  806.     def slot_handleEngineStoppedCallback(self):

  807.         patchcanvas.clear()

  808.         self.killTimers()

  809. 

  810.         # just in case

  811.         self.removeAllPlugins()

  812. 

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

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

  815. 

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

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

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

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

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

  821. 

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

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

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

  825. 

  826.     @pyqtSlot(float)

  827.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  828.         self.fSampleRate = newSampleRate

  829.         self.refreshTransport(True)

  830. 

  831.     @pyqtSlot()

  832.     def slot_handleProjectLoadFinishedCallback(self):

  833.         self.fIsProjectLoading = False

  834.         self.projectLoadingFinished()

  835. 

  836.     # --------------------------------------------------------------------------------------------------------

  837.     # Plugins

  838. 

  839.     def removeAllPlugins(self):

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

  841.         patchcanvas.handleAllPluginsRemoved()

  842. 

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

  844.             pass

  845. 

  846.         self.clearSideStuff()

  847. 

  848.         for pitem in self.fPluginList:

  849.             if pitem is None:

  850.                 continue

  851. 

  852.             pitem.close()

  853.             del pitem

  854. 

  855.         self.fPluginCount = 0

  856.         self.fPluginList  = []

  857. 

  858.     # --------------------------------------------------------------------------------------------------------

  859.     # Plugins (menu actions)

  860. 

  861.     def showAddPluginDialog(self):

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

  863. 

  864.         if not dialog.exec_():

  865.             return

  866. 

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

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

  869.             return

  870. 

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

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

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

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

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

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

  877. 

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

  879. 

  880.     def showAddJackAppDialog(self):

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

  882. 

  883.         if not dialog.exec_():

  884.             return

  885. 

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

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

  888.             return

  889. 

  890.         return dialog.getCommandAndFlags()

  891. 

  892.     @pyqtSlot()

  893.     def showPluginActionsMenu(self):

  894.         menu = QMenu(self)

  895. 

  896.         if config_UseQt5:

  897.             menu.addSection("Plugins")

  898.         else:

  899.             # fake section

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

  901.             font = act.font()

  902.             font.setBold(True)

  903.             act.setFont(font)

  904.             act.setEnabled(False)

  905.             menu.addSeparator()

  906. 

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

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

  909. 

  910.         if config_UseQt5:

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

  912.         else:

  913.             # fake space

  914.             act  = menu.addAction(" ")

  915.             font = act.font()

  916.             font.setBold(True)

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

  918.             act.setEnabled(False)

  919. 

  920.             # fake section

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

  922.             font = act.font()

  923.             font.setBold(True)

  924.             act.setFont(font)

  925.             act.setEnabled(False)

  926.             menu.addSeparator()

  927. 

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

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

  930.         menu.addSeparator()

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

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

  933.         menu.addSeparator()

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

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

  936.         menu.addSeparator()

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

  938.         menu.addSeparator()

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

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

  941. 

  942.         menu.exec_(QCursor.pos())

  943. 

  944.     @pyqtSlot()

  945.     def slot_pluginAdd(self):

  946.         data = self.showAddPluginDialog()

  947. 

  948.         if data is None:

  949.             return

  950. 

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

  952. 

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

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

  955. 

  956.     @pyqtSlot()

  957.     def slot_pluginRemoveAll(self):

  958.         if self.fPluginCount == 0:

  959.             return

  960. 

  961.         # FIXME - this is not working

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

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

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

  965.             self.projectLoadingStarted()

  966. 

  967.             app = QApplication.instance()

  968.             app.processEvents()

  969. 

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

  971.                 self.host.remove_plugin(i)

  972.                 app.processEvents()

  973. 

  974.             self.projectLoadingFinished()

  975. 

  976.         self.fCurrentlyRemovingAllPlugins = True

  977.         ok = self.host.remove_all_plugins()

  978.         self.fCurrentlyRemovingAllPlugins = False

  979. 

  980.         if ok:

  981.             self.removeAllPlugins()

  982.         else:

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

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

  985. 

  986.         self.fCurrentlyRemovingAllPlugins = False

  987. 

  988.     @pyqtSlot()

  989.     def slot_jackAppAdd(self):

  990.         data = self.showAddJackAppDialog()

  991. 

  992.         if data is None:

  993.             return

  994. 

  995.         filename, name, label = data

  996. 

  997.         if not filename:

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

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

  1000.             return

  1001. 

  1002.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1003.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1004.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1005. 

  1006.     # --------------------------------------------------------------------------------------------------------

  1007.     # Plugins (macros)

  1008. 

  1009.     @pyqtSlot()

  1010.     def slot_pluginsEnable(self):

  1011.         if not self.host.is_engine_running():

  1012.             return

  1013. 

  1014.         for pitem in self.fPluginList:

  1015.             if pitem is None:

  1016.                 break

  1017. 

  1018.             pitem.getWidget().setActive(True, True, True)

  1019. 

  1020.     @pyqtSlot()

  1021.     def slot_pluginsDisable(self):

  1022.         if not self.host.is_engine_running():

  1023.             return

  1024. 

  1025.         for pitem in self.fPluginList:

  1026.             if pitem is None:

  1027.                 break

  1028. 

  1029.             pitem.getWidget().setActive(False, True, True)

  1030. 

  1031.     @pyqtSlot()

  1032.     def slot_pluginsVolume100(self):

  1033.         if not self.host.is_engine_running():

  1034.             return

  1035. 

  1036.         for pitem in self.fPluginList:

  1037.             if pitem is None:

  1038.                 break

  1039. 

  1040.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1041. 

  1042.     @pyqtSlot()

  1043.     def slot_pluginsMute(self):

  1044.         if not self.host.is_engine_running():

  1045.             return

  1046. 

  1047.         for pitem in self.fPluginList:

  1048.             if pitem is None:

  1049.                 break

  1050. 

  1051.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1052. 

  1053.     @pyqtSlot()

  1054.     def slot_pluginsWet100(self):

  1055.         if not self.host.is_engine_running():

  1056.             return

  1057. 

  1058.         for pitem in self.fPluginList:

  1059.             if pitem is None:

  1060.                 break

  1061. 

  1062.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1063. 

  1064.     @pyqtSlot()

  1065.     def slot_pluginsBypass(self):

  1066.         if not self.host.is_engine_running():

  1067.             return

  1068. 

  1069.         for pitem in self.fPluginList:

  1070.             if pitem is None:

  1071.                 break

  1072. 

  1073.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1074. 

  1075.     @pyqtSlot()

  1076.     def slot_pluginsCenter(self):

  1077.         if not self.host.is_engine_running():

  1078.             return

  1079. 

  1080.         for pitem in self.fPluginList:

  1081.             if pitem is None:

  1082.                 break

  1083. 

  1084.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1085.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1086.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1087. 

  1088.     @pyqtSlot()

  1089.     def slot_pluginsCompact(self):

  1090.         for pitem in self.fPluginList:

  1091.             if pitem is None:

  1092.                 break

  1093.             pitem.compact()

  1094. 

  1095.     @pyqtSlot()

  1096.     def slot_pluginsExpand(self):

  1097.         for pitem in self.fPluginList:

  1098.             if pitem is None:

  1099.                 break

  1100.             pitem.expand()

  1101. 

  1102.     # --------------------------------------------------------------------------------------------------------

  1103.     # Plugins (host callbacks)

  1104. 

  1105.     @pyqtSlot(int, str)

  1106.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1107.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1108. 

  1109.         self.fPluginList.append(pitem)

  1110.         self.fPluginCount += 1

  1111. 

  1112.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1113. 

  1114.     @pyqtSlot(int)

  1115.     def slot_handlePluginRemovedCallback(self, pluginId):

  1116.         patchcanvas.handlePluginRemoved(pluginId)

  1117. 

  1118.         if pluginId in self.fSelectedPlugins:

  1119.             self.clearSideStuff()

  1120. 

  1121.         pitem = self.getPluginItem(pluginId)

  1122. 

  1123.         self.fPluginCount -= 1

  1124.         self.fPluginList.pop(pluginId)

  1125.         self.ui.listWidget.takeItem(pluginId)

  1126. 

  1127.         if pitem is not None:

  1128.             pitem.close()

  1129.             del pitem

  1130. 

  1131.         # push all plugins 1 slot back

  1132.         for i in range(pluginId, self.fPluginCount):

  1133.             pitem = self.fPluginList[i]

  1134.             pitem.setPluginId(i)

  1135. 

  1136.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1137. 

  1138.     # --------------------------------------------------------------------------------------------------------

  1139.     # Canvas

  1140. 

  1141.     def clearSideStuff(self):

  1142.         self.scene.clearSelection()

  1143. 

  1144.         self.fSelectedPlugins = []

  1145. 

  1146.         self.ui.keyboard.allNotesOff(False)

  1147.         self.ui.scrollArea.setEnabled(False)

  1148. 

  1149.         self.fPeaksCleared = True

  1150.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1151.         self.ui.peak_in.displayMeter(2, 0.0, True)

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

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

  1154. 

  1155.     def setupCanvas(self):

  1156.         pOptions = patchcanvas.options_t()

  1157.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1158.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1159.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1160.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1161.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1162. 

  1163.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1164.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1165.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1166.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1167.         else:

  1168.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1169. 

  1170.         pFeatures = patchcanvas.features_t()

  1171.         pFeatures.group_info   = False

  1172.         pFeatures.group_rename = False

  1173.         pFeatures.port_info    = False

  1174.         pFeatures.port_rename  = False

  1175.         pFeatures.handle_group_pos = True

  1176. 

  1177.         patchcanvas.setOptions(pOptions)

  1178.         patchcanvas.setFeatures(pFeatures)

  1179.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1180. 

  1181.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1182. 

  1183.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1184.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1185.             self.fCanvasHeight = int(tryCanvasSize[1])

  1186.         else:

  1187.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1188.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1189. 

  1190.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1191.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1192.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1193. 

  1194.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1195.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1196. 

  1197.     def updateCanvasInitialPos(self):

  1198.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1199.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1200.         patchcanvas.setInitialPos(x, y)

  1201. 

  1202.     def updateMiniCanvasLater(self):

  1203.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1204. 

  1205.     # --------------------------------------------------------------------------------------------------------

  1206.     # Canvas (menu actions)

  1207. 

  1208.     @pyqtSlot()

  1209.     def slot_canvasShowInternal(self):

  1210.         self.fExternalPatchbay = False

  1211.         self.ui.act_canvas_show_internal.blockSignals(True)

  1212.         self.ui.act_canvas_show_external.blockSignals(True)

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

  1214.         self.ui.act_canvas_show_external.setChecked(False)

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

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

  1217.         self.slot_canvasRefresh()

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_canvasShowExternal(self):

  1221.         self.fExternalPatchbay = True

  1222.         self.ui.act_canvas_show_internal.blockSignals(True)

  1223.         self.ui.act_canvas_show_external.blockSignals(True)

  1224.         self.ui.act_canvas_show_internal.setChecked(False)

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

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

  1227.         self.ui.act_canvas_show_external.blockSignals(False)

  1228.         self.slot_canvasRefresh()

  1229. 

  1230.     @pyqtSlot()

  1231.     def slot_canvasArrange(self):

  1232.         patchcanvas.arrange()

  1233. 

  1234.     @pyqtSlot()

  1235.     def slot_canvasRefresh(self):

  1236.         patchcanvas.clear()

  1237. 

  1238.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1239.             return

  1240. 

  1241.         if self.host.is_engine_running():

  1242.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1243. 

  1244.         self.updateMiniCanvasLater()

  1245. 

  1246.     @pyqtSlot()

  1247.     def slot_canvasZoomFit(self):

  1248.         self.scene.zoom_fit()

  1249. 

  1250.     @pyqtSlot()

  1251.     def slot_canvasZoomIn(self):

  1252.         self.scene.zoom_in()

  1253. 

  1254.     @pyqtSlot()

  1255.     def slot_canvasZoomOut(self):

  1256.         self.scene.zoom_out()

  1257. 

  1258.     @pyqtSlot()

  1259.     def slot_canvasZoomReset(self):

  1260.         self.scene.zoom_reset()

  1261. 

  1262.     @pyqtSlot()

  1263.     def slot_canvasSaveImage(self):

  1264.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1265. 

  1266.         if config_UseQt5:

  1267.             newPath = newPath[0]

  1268.         if not newPath:

  1269.             return

  1270. 

  1271.         self.scene.clearSelection()

  1272. 

  1273.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1274.             imgFormat = "JPG"

  1275.         elif newPath.lower().endswith((".png",)):

  1276.             imgFormat = "PNG"

  1277.         else:

  1278.             # File-dialog may not auto-add the extension

  1279.             imgFormat = "PNG"

  1280.             newPath  += ".png"

  1281. 

  1282.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1283.         painter = QPainter(self.fExportImage)

  1284.         painter.save()

  1285.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1286.         painter.setRenderHint(QPainter.TextAntialiasing)

  1287.         self.scene.render(painter)

  1288.         self.fExportImage.save(newPath, imgFormat, 100)

  1289.         painter.restore()

  1290. 

  1291.     # --------------------------------------------------------------------------------------------------------

  1292.     # Canvas (canvas callbacks)

  1293. 

  1294.     @pyqtSlot(int, int, QPointF)

  1295.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1296.         self.updateMiniCanvasLater()

  1297. 

  1298.     @pyqtSlot(float)

  1299.     def slot_canvasScaleChanged(self, scale):

  1300.         self.ui.miniCanvasPreview.setViewScale(scale)

  1301. 

  1302.     @pyqtSlot(list)

  1303.     def slot_canvasPluginSelected(self, pluginList):

  1304.         self.ui.keyboard.allNotesOff(False)

  1305.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1306.         self.fSelectedPlugins = pluginList

  1307. 

  1308.     # --------------------------------------------------------------------------------------------------------

  1309.     # Canvas (host callbacks)

  1310. 

  1311.     @pyqtSlot(int, int, int, str)

  1312.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1313.         pcSplit = patchcanvas.SPLIT_UNDEF

  1314.         pcIcon  = patchcanvas.ICON_APPLICATION

  1315. 

  1316.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1317.             pcIcon = patchcanvas.ICON_PLUGIN

  1318.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1319.             pcIcon = patchcanvas.ICON_HARDWARE

  1320.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1321.             pass

  1322.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1323.             pcIcon = patchcanvas.ICON_DISTRHO

  1324.         elif clientIcon == PATCHBAY_ICON_FILE:

  1325.             pcIcon = patchcanvas.ICON_FILE

  1326. 

  1327.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1328. 

  1329.         self.updateMiniCanvasLater()

  1330. 

  1331.         if pluginId < 0:

  1332.             return

  1333.         if pluginId >= self.fPluginCount:

  1334.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1335.             return

  1336. 

  1337.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1338. 

  1339.     @pyqtSlot(int)

  1340.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1341.         patchcanvas.removeGroup(clientId)

  1342.         self.updateMiniCanvasLater()

  1343. 

  1344.     @pyqtSlot(int, str)

  1345.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1346.         patchcanvas.renameGroup(clientId, newClientName)

  1347.         self.updateMiniCanvasLater()

  1348. 

  1349.     @pyqtSlot(int, int, int)

  1350.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1351.         pcIcon = patchcanvas.ICON_APPLICATION

  1352. 

  1353.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1354.             pcIcon = patchcanvas.ICON_PLUGIN

  1355.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1356.             pcIcon = patchcanvas.ICON_HARDWARE

  1357.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1358.             pass

  1359.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1360.             pcIcon = patchcanvas.ICON_DISTRHO

  1361.         elif clientIcon == PATCHBAY_ICON_FILE:

  1362.             pcIcon = patchcanvas.ICON_FILE

  1363. 

  1364.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1365.         self.updateMiniCanvasLater()

  1366. 

  1367.         if pluginId < 0:

  1368.             return

  1369.         if pluginId >= self.fPluginCount:

  1370.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1371.             return

  1372. 

  1373.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1374. 

  1375.     @pyqtSlot(int, int, int, str)

  1376.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1377.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1378.             portMode = patchcanvas.PORT_MODE_INPUT

  1379.         else:

  1380.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1381. 

  1382.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1383.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1384.             isAlternate = False

  1385.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1386.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1387.             isAlternate = True

  1388.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1389.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1390.             isAlternate = False

  1391.         else:

  1392.             portType    = patchcanvas.PORT_TYPE_NULL

  1393.             isAlternate = False

  1394. 

  1395.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1396.         self.updateMiniCanvasLater()

  1397. 

  1398.     @pyqtSlot(int, int)

  1399.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1400.         patchcanvas.removePort(groupId, portId)

  1401.         self.updateMiniCanvasLater()

  1402. 

  1403.     @pyqtSlot(int, int, str)

  1404.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1405.         patchcanvas.renamePort(groupId, portId, newPortName)

  1406.         self.updateMiniCanvasLater()

  1407. 

  1408.     @pyqtSlot(int, int, int, int, int)

  1409.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1410.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1411.         self.updateMiniCanvasLater()

  1412. 

  1413.     @pyqtSlot(int, int, int)

  1414.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1415.         patchcanvas.disconnectPorts(connectionId)

  1416.         self.updateMiniCanvasLater()

  1417. 

  1418.     # --------------------------------------------------------------------------------------------------------

  1419.     # Settings

  1420. 

  1421.     def saveSettings(self):

  1422.         settings = QSettings()

  1423. 

  1424.         settings.setValue("Geometry", self.saveGeometry())

  1425. 

  1426.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1427. 

  1428.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1429. 

  1430.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1431. 

  1432.         diskFolders = []

  1433. 

  1434.         for i in range(self.ui.cb_disk.count()):

  1435.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1436. 

  1437.         settings.setValue("DiskFolders", diskFolders)

  1438. 

  1439.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1440.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1441.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1442.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1443. 

  1444.     def loadSettings(self, firstTime):

  1445.         settings = QSettings()

  1446. 

  1447.         if firstTime:

  1448.             self.restoreGeometry(settings.value("Geometry", b""))

  1449. 

  1450.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1451.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1452.             self.ui.toolBar.setEnabled(showToolbar)

  1453.             self.ui.toolBar.setVisible(showToolbar)

  1454. 

  1455.             #if settings.contains("SplitterState"):

  1456.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1457.             #else:

  1458.                 #self.ui.splitter.setSizes([210, 99999])

  1459. 

  1460.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1461.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1462.             self.ui.dockWidget.setEnabled(showSidePanel)

  1463.             self.ui.dockWidget.setVisible(showSidePanel)

  1464. 

  1465.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1466. 

  1467.             self.ui.cb_disk.setItemData(0, HOME)

  1468. 

  1469.             for i in range(len(diskFolders)):

  1470.                 if i == 0: continue

  1471.                 folder = diskFolders[i]

  1472.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1473. 

  1474.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1475.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1476. 

  1477.             showMeters = settings.value("ShowMeters", False, type=bool)

  1478.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1479.             self.ui.peak_in.setVisible(showMeters)

  1480.             self.ui.peak_out.setVisible(showMeters)

  1481. 

  1482.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1483.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1484.             self.ui.scrollArea.setVisible(showKeyboard)

  1485. 

  1486.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1487. 

  1488.         # TODO - complete this

  1489. 

  1490.         self.fSavedSettings = {

  1491.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1492.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1493.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1494.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1495.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1496.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1497.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1498.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1499.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1500.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1501.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1502.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1503.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1504.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1505.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1506.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1507.         }

  1508. 

  1509.         self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1510.                                                        CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1511. 

  1512.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1513. 

  1514.         setEngineSettings(self.host)

  1515.         self.restartTimersIfNeeded()

  1516. 

  1517.     # --------------------------------------------------------------------------------------------------------

  1518.     # Settings (helpers)

  1519. 

  1520.     @pyqtSlot()

  1521.     def slot_restoreCanvasScrollbarValues(self):

  1522.         settings = QSettings()

  1523.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1524.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1525. 

  1526.     # --------------------------------------------------------------------------------------------------------

  1527.     # Settings (menu actions)

  1528. 

  1529.     @pyqtSlot(bool)

  1530.     def slot_showSidePanel(self, yesNo):

  1531.         self.ui.dockWidget.setEnabled(yesNo)

  1532.         self.ui.dockWidget.setVisible(yesNo)

  1533. 

  1534.     @pyqtSlot(bool)

  1535.     def slot_showToolbar(self, yesNo):

  1536.         self.ui.toolBar.setEnabled(yesNo)

  1537.         self.ui.toolBar.setVisible(yesNo)

  1538. 

  1539.     @pyqtSlot(bool)

  1540.     def slot_showCanvasMeters(self, yesNo):

  1541.         self.ui.peak_in.setVisible(yesNo)

  1542.         self.ui.peak_out.setVisible(yesNo)

  1543.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1544. 

  1545.     @pyqtSlot(bool)

  1546.     def slot_showCanvasKeyboard(self, yesNo):

  1547.         self.ui.scrollArea.setVisible(yesNo)

  1548.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1549. 

  1550.     @pyqtSlot()

  1551.     def slot_configureCarla(self):

  1552.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1553.         if not dialog.exec_():

  1554.             return

  1555. 

  1556.         self.loadSettings(False)

  1557. 

  1558.         patchcanvas.clear()

  1559. 

  1560.         self.setupCanvas()

  1561.         self.slot_miniCanvasCheckAll()

  1562. 

  1563.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1564.             pass

  1565.         elif self.host.is_engine_running():

  1566.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1567. 

  1568.         for pitem in self.fPluginList:

  1569.             if pitem is None:

  1570.                 break

  1571.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1572.             pitem.recreateWidget()

  1573. 

  1574.     # --------------------------------------------------------------------------------------------------------

  1575.     # About (menu actions)

  1576. 

  1577.     @pyqtSlot()

  1578.     def slot_aboutCarla(self):

  1579.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1580. 

  1581.     @pyqtSlot()

  1582.     def slot_aboutQt(self):

  1583.         QApplication.instance().aboutQt()

  1584. 

  1585.     # --------------------------------------------------------------------------------------------------------

  1586.     # Disk (menu actions)

  1587. 

  1588.     @pyqtSlot(int)

  1589.     def slot_diskFolderChanged(self, index):

  1590.         if index < 0:

  1591.             return

  1592.         elif index == 0:

  1593.             filename = HOME

  1594.             self.ui.b_disk_remove.setEnabled(False)

  1595.         else:

  1596.             filename = self.ui.cb_disk.itemData(index)

  1597.             self.ui.b_disk_remove.setEnabled(True)

  1598. 

  1599.         self.fDirModel.setRootPath(filename)

  1600.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1601. 

  1602.     @pyqtSlot()

  1603.     def slot_diskFolderAdd(self):

  1604.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1605. 

  1606.         if newPath:

  1607.             if newPath[-1] == os.sep:

  1608.                 newPath = newPath[:-1]

  1609.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1610.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1611.             self.ui.b_disk_remove.setEnabled(True)

  1612. 

  1613.     @pyqtSlot()

  1614.     def slot_diskFolderRemove(self):

  1615.         index = self.ui.cb_disk.currentIndex()

  1616. 

  1617.         if index <= 0:

  1618.             return

  1619. 

  1620.         self.ui.cb_disk.removeItem(index)

  1621. 

  1622.         if self.ui.cb_disk.currentIndex() == 0:

  1623.             self.ui.b_disk_remove.setEnabled(False)

  1624. 

  1625.     @pyqtSlot(QModelIndex)

  1626.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1627.         filename = self.fDirModel.filePath(modelIndex)

  1628. 

  1629.         if not self.ui.listWidget.isDragUrlValid(filename):

  1630.             return

  1631. 

  1632.         if not self.host.load_file(filename):

  1633.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1634.                              self.tr("Failed to load file"),

  1635.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1636. 

  1637.     # --------------------------------------------------------------------------------------------------------

  1638.     # Transport

  1639. 

  1640.     def refreshTransport(self, forced = False):

  1641.         if not self.isVisible():

  1642.             return

  1643.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1644.             return

  1645. 

  1646.         timeInfo = self.host.get_transport_info()

  1647.         playing  = timeInfo['playing']

  1648.         frame    = timeInfo['frame']

  1649.         bpm      = timeInfo['bpm']

  1650. 

  1651.         if playing != self.fLastTransportState or forced:

  1652.             if playing:

  1653.                 icon = getIcon("media-playback-pause")

  1654.                 self.ui.b_transport_play.setChecked(True)

  1655.                 self.ui.b_transport_play.setIcon(icon)

  1656.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1657.             else:

  1658.                 icon = getIcon("media-playback-start")

  1659.                 self.ui.b_transport_play.setChecked(False)

  1660.                 self.ui.b_transport_play.setIcon(icon)

  1661.                 #self.ui.b_play.setText(self.tr("&Play"))

  1662. 

  1663.             self.fLastTransportState = playing

  1664. 

  1665.         if frame != self.fLastTransportFrame or forced:

  1666.             self.fLastTransportFrame = frame

  1667. 

  1668.             time = frame / self.fSampleRate

  1669.             secs =  time % 60

  1670.             mins = (time / 60) % 60

  1671.             hrs  = (time / 3600) % 60

  1672.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1673. 

  1674.             frame1 =  frame % 1000

  1675.             frame2 = (frame / 1000) % 1000

  1676.             frame3 = (frame / 1000000) % 1000

  1677.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1678. 

  1679.             bar  = timeInfo['bar']

  1680.             beat = timeInfo['beat']

  1681.             tick = timeInfo['tick']

  1682.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1683. 

  1684.         if bpm != self.fLastTransportBPM or forced:

  1685.             self.fLastTransportBPM = bpm

  1686. 

  1687.             if bpm > 0.0:

  1688.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1689.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1690.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1691.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1692.             else:

  1693.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1694. 

  1695.     # --------------------------------------------------------------------------------------------------------

  1696.     # Transport (menu actions)

  1697. 

  1698.     @pyqtSlot(bool)

  1699.     def slot_transportPlayPause(self, toggled):

  1700.         if self.host.isPlugin or not self.host.is_engine_running():

  1701.             return

  1702. 

  1703.         if toggled:

  1704.             self.host.transport_play()

  1705.         else:

  1706.             self.host.transport_pause()

  1707. 

  1708.         self.refreshTransport()

  1709. 

  1710.     @pyqtSlot()

  1711.     def slot_transportStop(self):

  1712.         if self.host.isPlugin or not self.host.is_engine_running():

  1713.             return

  1714. 

  1715.         self.host.transport_pause()

  1716.         self.host.transport_relocate(0)

  1717. 

  1718.         self.refreshTransport()

  1719. 

  1720.     @pyqtSlot()

  1721.     def slot_transportBackwards(self):

  1722.         if self.host.isPlugin or not self.host.is_engine_running():

  1723.             return

  1724. 

  1725.         newFrame = self.host.get_current_transport_frame() - 100000

  1726. 

  1727.         if newFrame < 0:

  1728.             newFrame = 0

  1729. 

  1730.         self.host.transport_relocate(newFrame)

  1731. 

  1732.     @pyqtSlot(float)

  1733.     def slot_transportBpmChanged(self, newValue):

  1734.         self.host.transport_bpm(newValue)

  1735. 

  1736.     @pyqtSlot()

  1737.     def slot_transportForwards(self):

  1738.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1739.             return

  1740. 

  1741.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1742.         self.host.transport_relocate(newFrame)

  1743. 

  1744.     @pyqtSlot(bool)

  1745.     def slot_transportJackEnabled(self, clicked):

  1746.         if not self.host.is_engine_running():

  1747.             return

  1748.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1749.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1750.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1751. 

  1752.     @pyqtSlot(bool)

  1753.     def slot_transportLinkEnabled(self, clicked):

  1754.         if not self.host.is_engine_running():

  1755.             return

  1756.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1757.         extra = ":link:" if clicked else ""

  1758.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1759. 

  1760.     # --------------------------------------------------------------------------------------------------------

  1761.     # Canvas scrollbars

  1762. 

  1763.     @pyqtSlot(int)

  1764.     def slot_horizontalScrollBarChanged(self, value):

  1765.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1766.         if maximum == 0:

  1767.             xp = 0

  1768.         else:

  1769.             xp = float(value) / maximum

  1770.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1771.         self.updateCanvasInitialPos()

  1772. 

  1773.     @pyqtSlot(int)

  1774.     def slot_verticalScrollBarChanged(self, value):

  1775.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1776.         if maximum == 0:

  1777.             yp = 0

  1778.         else:

  1779.             yp = float(value) / maximum

  1780.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1781.         self.updateCanvasInitialPos()

  1782. 

  1783.     # --------------------------------------------------------------------------------------------------------

  1784.     # Canvas keyboard

  1785. 

  1786.     @pyqtSlot(int)

  1787.     def slot_noteOn(self, note):

  1788.         for pluginId in self.fSelectedPlugins:

  1789.             self.host.send_midi_note(pluginId, 0, note, 100)

  1790. 

  1791.             pedit = self.getPluginEditDialog(pluginId)

  1792.             pedit.noteOn(0, note, 100)

  1793. 

  1794.     @pyqtSlot(int)

  1795.     def slot_noteOff(self, note):

  1796.         for pluginId in self.fSelectedPlugins:

  1797.             self.host.send_midi_note(pluginId, 0, note, 0)

  1798. 

  1799.             pedit = self.getPluginEditDialog(pluginId)

  1800.             pedit.noteOff(0, note)

  1801. 

  1802.     # --------------------------------------------------------------------------------------------------------

  1803.     # Canvas keyboard (host callbacks)

  1804. 

  1805.     @pyqtSlot(int, int, int, int)

  1806.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1807.         if pluginId in self.fSelectedPlugins:

  1808.             self.ui.keyboard.sendNoteOn(note, False)

  1809. 

  1810.     @pyqtSlot(int, int, int)

  1811.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1812.         if pluginId in self.fSelectedPlugins:

  1813.             self.ui.keyboard.sendNoteOff(note, False)

  1814. 

  1815.     # --------------------------------------------------------------------------------------------------------

  1816. 

  1817.     @pyqtSlot(int)

  1818.     def slot_handleUpdateCallback(self, pluginId):

  1819.         pitem = self.getPluginItem(pluginId)

  1820. 

  1821.         if pitem is None:

  1822.             return

  1823. 

  1824.         wasCompacted = pitem.isCompacted()

  1825.         isCompacted  = wasCompacted

  1826. 

  1827.         for i in range(self.host.get_custom_data_count(pluginId)):

  1828.             cdata = self.host.get_custom_data(pluginId, i)

  1829. 

  1830.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1831.                 isCompacted = bool(cdata['value'] == "true")

  1832.                 break

  1833.         else:

  1834.             return

  1835. 

  1836.         if wasCompacted == isCompacted:

  1837.             return

  1838. 

  1839.         pitem.recreateWidget(True)

  1840. 

  1841.     # --------------------------------------------------------------------------------------------------------

  1842.     # MiniCanvas stuff

  1843. 

  1844.     @pyqtSlot()

  1845.     def slot_miniCanvasCheckAll(self):

  1846.         self.slot_miniCanvasCheckSize()

  1847.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1848.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1849. 

  1850.     @pyqtSlot()

  1851.     def slot_miniCanvasCheckSize(self):

  1852.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1853.             return

  1854. 

  1855.         currentIndex = self.ui.tabWidget.currentIndex()

  1856. 

  1857.         if currentIndex == 1:

  1858.             width  = self.ui.graphicsView.width()

  1859.             height = self.ui.graphicsView.height()

  1860.         else:

  1861.             self.ui.tabWidget.blockSignals(True)

  1862.             self.ui.tabWidget.setCurrentIndex(1)

  1863.             width  = self.ui.graphicsView.width()

  1864.             height = self.ui.graphicsView.height()

  1865.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1866.             self.ui.tabWidget.blockSignals(False)

  1867. 

  1868.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1869. 

  1870.     @pyqtSlot(float, float)

  1871.     def slot_miniCanvasMoved(self, xp, yp):

  1872.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1873.         vsb = self.ui.graphicsView.verticalScrollBar()

  1874.         hsb.setValue(xp * hsb.maximum())

  1875.         vsb.setValue(yp * vsb.maximum())

  1876.         self.updateCanvasInitialPos()

  1877. 

  1878.     # --------------------------------------------------------------------------------------------------------

  1879.     # Timers

  1880. 

  1881.     def startTimers(self):

  1882.         if self.fIdleTimerFast == 0:

  1883.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1884. 

  1885.         if self.fIdleTimerSlow == 0:

  1886.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1887. 

  1888.     def restartTimersIfNeeded(self):

  1889.         if self.fIdleTimerFast != 0:

  1890.             self.killTimer(self.fIdleTimerFast)

  1891.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1892. 

  1893.         if self.fIdleTimerSlow != 0:

  1894.             self.killTimer(self.fIdleTimerSlow)

  1895.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1896. 

  1897.     def killTimers(self):

  1898.         if self.fIdleTimerFast != 0:

  1899.             self.killTimer(self.fIdleTimerFast)

  1900.             self.fIdleTimerFast = 0

  1901. 

  1902.         if self.fIdleTimerSlow != 0:

  1903.             self.killTimer(self.fIdleTimerSlow)

  1904.             self.fIdleTimerSlow = 0

  1905. 

  1906.     # --------------------------------------------------------------------------------------------------------

  1907.     # Misc

  1908. 

  1909.     @pyqtSlot(int)

  1910.     def slot_tabChanged(self, index):

  1911.         if index != 1:

  1912.             return

  1913. 

  1914.         self.ui.graphicsView.setFocus()

  1915. 

  1916.     @pyqtSlot(int)

  1917.     def slot_handleReloadAllCallback(self, pluginId):

  1918.         if pluginId >= self.fPluginCount:

  1919.             return

  1920. 

  1921.         pitem = self.fPluginList[pluginId]

  1922.         if pitem is None:

  1923.             return

  1924. 

  1925.         pitem.recreateWidget()

  1926. 

  1927.     # --------------------------------------------------------------------------------------------------------

  1928. 

  1929.     @pyqtSlot(int, int, str)

  1930.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  1931.         # Error

  1932.         if value1 == 0:

  1933.             pass

  1934. 

  1935.         # Reply

  1936.         elif value1 == 1:

  1937.             self.fFirstEngineInit    = False

  1938.             self.fSessionManagerName = valueStr

  1939.             self.setProperWindowTitle()

  1940. 

  1941.         # Open

  1942.         elif value1 == 2:

  1943.             self.fClientName      = os.path.basename(valueStr)

  1944.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  1945.             self.setProperWindowTitle()

  1946. 

  1947.             self.fCustomStopAction = 2

  1948.             self.slot_engineStop(True)

  1949.             return

  1950. 

  1951.         # Save

  1952.         elif value1 == 3:

  1953.             self.saveProjectNow()

  1954. 

  1955.         # Session is Loaded

  1956.         elif value1 == 4:

  1957.             pass

  1958. 

  1959.         # Show Optional Gui

  1960.         elif value1 == 5:

  1961.             self.show()

  1962. 

  1963.         # Hide Optional Gui

  1964.         elif value1 == 6:

  1965.             self.hide()

  1966. 

  1967.         self.host.nsm_ready(value1)

  1968. 

  1969.     # --------------------------------------------------------------------------------------------------------

  1970. 

  1971.     def fixLogText(self, text):

  1972.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  1973. 

  1974.     @pyqtSlot(int, int, int, float, str)

  1975.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1976.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  1977. 

  1978.     @pyqtSlot(str)

  1979.     def slot_handleInfoCallback(self, info):

  1980.         QMessageBox.information(self, "Information", info)

  1981. 

  1982.     @pyqtSlot(str)

  1983.     def slot_handleErrorCallback(self, error):

  1984.         QMessageBox.critical(self, "Error", error)

  1985. 

  1986.     @pyqtSlot()

  1987.     def slot_handleQuitCallback(self):

  1988.         pass # TODO

  1989. 

  1990.     # --------------------------------------------------------------------------------------------------------

  1991. 

  1992.     @pyqtSlot()

  1993.     def slot_handleSIGUSR1(self):

  1994.         print("Got SIGUSR1 -> Saving project now")

  1995.         self.slot_fileSave()

  1996. 

  1997.     @pyqtSlot()

  1998.     def slot_handleSIGTERM(self):

  1999.         print("Got SIGTERM -> Closing now")

  2000.         self.fCustomStopAction = 1

  2001.         self.slot_engineStop(True)

  2002. 

  2003.     # --------------------------------------------------------------------------------------------------------

  2004.     # Internal stuff

  2005. 

  2006.     def getExtraPtr(self, plugin):

  2007.         ptype = plugin['type']

  2008. 

  2009.         if ptype == PLUGIN_LADSPA:

  2010.             uniqueId = plugin['uniqueId']

  2011. 

  2012.             self.maybeLoadRDFs()

  2013. 

  2014.             for rdfItem in self.fLadspaRdfList:

  2015.                 if rdfItem.UniqueID == uniqueId:

  2016.                     return pointer(rdfItem)

  2017. 

  2018.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  2019.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2020.                 return self._true

  2021. 

  2022.         return None

  2023. 

  2024.     def maybeLoadRDFs(self):

  2025.         if not self.fLadspaRdfNeedsUpdate:

  2026.             return

  2027. 

  2028.         self.fLadspaRdfNeedsUpdate = False

  2029.         self.fLadspaRdfList = []

  2030. 

  2031.         if not haveLRDF:

  2032.             return

  2033. 

  2034.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2035.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2036. 

  2037.         if os.path.exists(frLadspaFile):

  2038.             frLadspa = open(frLadspaFile, 'r')

  2039. 

  2040.             try:

  2041.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2042.             except:

  2043.                 pass

  2044. 

  2045.             frLadspa.close()

  2046. 

  2047.     # --------------------------------------------------------------------------------------------------------

  2048. 

  2049.     def getPluginItem(self, pluginId):

  2050.         if pluginId >= self.fPluginCount:

  2051.             return None

  2052. 

  2053.         pitem = self.fPluginList[pluginId]

  2054.         if pitem is None:

  2055.             return None

  2056.         #if False:

  2057.             #return CarlaRackItem(self, 0, False)

  2058. 

  2059.         return pitem

  2060. 

  2061.     def getPluginEditDialog(self, pluginId):

  2062.         if pluginId >= self.fPluginCount:

  2063.             return None

  2064. 

  2065.         pitem = self.fPluginList[pluginId]

  2066.         if pitem is None:

  2067.             return None

  2068.         if False:

  2069.             return PluginEdit(self, self.host, 0)

  2070. 

  2071.         return pitem.getEditDialog()

  2072. 

  2073.     def getPluginSlotWidget(self, pluginId):

  2074.         if pluginId >= self.fPluginCount:

  2075.             return None

  2076. 

  2077.         pitem = self.fPluginList[pluginId]

  2078.         if pitem is None:

  2079.             return None

  2080.         #if False:

  2081.             #return AbstractPluginSlot()

  2082. 

  2083.         return pitem.getWidget()

  2084. 

  2085.     # --------------------------------------------------------------------------------------------------------

  2086. 

  2087.     def waitForPendingEvents(self):

  2088.         pass

  2089. 

  2090.     # --------------------------------------------------------------------------------------------------------

  2091.     # show/hide event

  2092. 

  2093.     def showEvent(self, event):

  2094.         self.refreshTransport(True)

  2095.         QMainWindow.showEvent(self, event)

  2096. 

  2097.         # set our gui as parent for all plugins UIs

  2098.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2099.             winIdStr = "%x" % int(self.winId())

  2100.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2101. 

  2102.     def hideEvent(self, event):

  2103.         # disable parent

  2104.         if not (self.host.isControl or self.host.isPlugin):

  2105.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2106. 

  2107.         QMainWindow.hideEvent(self, event)

  2108. 

  2109.     # --------------------------------------------------------------------------------------------------------

  2110.     # resize event

  2111. 

  2112.     def fixCanvasPreviewSize(self):

  2113.         self.ui.patchbay.resize(self.ui.rack.size())

  2114.         self.slot_miniCanvasCheckSize()

  2115. 

  2116.     def resizeEvent(self, event):

  2117.         QMainWindow.resizeEvent(self, event)

  2118. 

  2119.         if self.ui.tabWidget.currentIndex() != 1:

  2120.             size = self.ui.rack.size()

  2121.             self.ui.patchbay.resize(size)

  2122. 

  2123.         self.slot_miniCanvasCheckSize()

  2124. 

  2125.     # --------------------------------------------------------------------------------------------------------

  2126.     # timer event

  2127. 

  2128.     def idleFast(self):

  2129.         self.host.engine_idle()

  2130.         self.refreshTransport()

  2131. 

  2132.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2133.             return

  2134. 

  2135.         for pitem in self.fPluginList:

  2136.             if pitem is None:

  2137.                 break

  2138. 

  2139.             pitem.getWidget().idleFast()

  2140. 

  2141.         for pluginId in self.fSelectedPlugins:

  2142.             self.fPeaksCleared = False

  2143.             if self.ui.peak_in.isVisible():

  2144.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2145.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2146.             if self.ui.peak_out.isVisible():

  2147.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2148.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2149.             return

  2150. 

  2151.         if self.fPeaksCleared:

  2152.             return

  2153. 

  2154.         self.fPeaksCleared = True

  2155.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2156.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2157.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2158.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2159. 

  2160.     def idleSlow(self):

  2161.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2162.             return

  2163. 

  2164.         for pitem in self.fPluginList:

  2165.             if pitem is None:

  2166.                 break

  2167. 

  2168.             pitem.getWidget().idleSlow()

  2169. 

  2170.     def timerEvent(self, event):

  2171.         if event.timerId() == self.fIdleTimerFast:

  2172.             self.idleFast()

  2173. 

  2174.         elif event.timerId() == self.fIdleTimerSlow:

  2175.             self.idleSlow()

  2176. 

  2177.         QMainWindow.timerEvent(self, event)

  2178. 

  2179.     # --------------------------------------------------------------------------------------------------------

  2180.     # paint event

  2181. 

  2182.     #def paintEvent(self, event):

  2183.         #QMainWindow.paintEvent(self, event)

  2184. 

  2185.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2186.             #return

  2187. 

  2188.         #painter = QPainter(self)

  2189.         #painter.setBrush(QColor(36, 36, 36))

  2190.         #painter.setPen(QColor(62, 62, 62))

  2191.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2192. 

  2193.     # --------------------------------------------------------------------------------------------------------

  2194.     # close event

  2195. 

  2196.     def closeEvent(self, event):

  2197.         self.killTimers()

  2198.         self.saveSettings()

  2199. 

  2200.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2201.             if not self.slot_engineStop(True):

  2202.                 self.fCustomStopAction = 1

  2203.                 event.ignore()

  2204.                 return

  2205. 

  2206.         QMainWindow.closeEvent(self, event)

  2207. 

  2208. # ------------------------------------------------------------------------------------------------

  2209. # Canvas callback

  2210. 

  2211. def canvasCallback(action, value1, value2, valueStr):

  2212.     host = gCarla.gui.host

  2213. 

  2214.     if action == patchcanvas.ACTION_GROUP_INFO:

  2215.         pass

  2216. 

  2217.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2218.         pass

  2219. 

  2220.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2221.         groupId = value1

  2222.         patchcanvas.splitGroup(groupId)

  2223.         gCarla.gui.updateMiniCanvasLater()

  2224. 

  2225.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2226.         groupId = value1

  2227.         patchcanvas.joinGroup(groupId)

  2228.         gCarla.gui.updateMiniCanvasLater()

  2229. 

  2230.     elif action == patchcanvas.ACTION_PORT_INFO:

  2231.         pass

  2232. 

  2233.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2234.         pass

  2235. 

  2236.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2237.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2238. 

  2239.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2240.             print("Connection failed:", host.get_last_error())

  2241. 

  2242.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2243.         connectionId = value1

  2244. 

  2245.         if not host.patchbay_disconnect(connectionId):

  2246.             print("Disconnect failed:", host.get_last_error())

  2247. 

  2248.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2249.         pluginId = value1

  2250. 

  2251.         if not host.clone_plugin(pluginId):

  2252.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2253.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2254. 

  2255.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2256.         pluginId = value1

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

  2258. 

  2259.         if pwidget is not None:

  2260.             pwidget.showEditDialog()

  2261. 

  2262.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2263.         pluginId = value1

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

  2265. 

  2266.         if pwidget is not None:

  2267.             pwidget.showRenameDialog()

  2268. 

  2269.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2270.         pluginId = value1

  2271.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2272. 

  2273.         if pwidget is not None:

  2274.             pwidget.showReplaceDialog()

  2275. 

  2276.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2277.         pluginId = value1

  2278. 

  2279.         if not host.remove_plugin(pluginId):

  2280.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2281.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2282. 

  2283.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2284.         pluginId = value1

  2285.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2286. 

  2287.         if pwidget is not None:

  2288.             pwidget.showCustomUI()

  2289. 

  2290.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2291.         gCarla.gui.showPluginActionsMenu()

  2292. 

  2293. # ------------------------------------------------------------------------------------------------------------

  2294. # Engine callback

  2295. 

  2296. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2297.     # kdevelop likes this :)

  2298.     if False: host = CarlaHostNull()

  2299. 

  2300.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2301.         host.processMode   = value1

  2302.         host.transportMode = value2

  2303.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2304.         host.processMode   = value1

  2305.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2306.         host.transportMode = value1

  2307. 

  2308.     valueStr = charPtrToString(valueStr)

  2309. 

  2310.     if action == ENGINE_CALLBACK_DEBUG:

  2311.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2312.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2313.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2314.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2315.         host.PluginRemovedCallback.emit(pluginId)

  2316.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2317.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2318.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2319.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2320.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2321.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2322.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2323.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2324.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2325.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2326.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2327.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2328.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2329.         host.ProgramChangedCallback.emit(pluginId, value1)

  2330.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2331.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2332.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2333.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2334.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2335.         host.UiStateChangedCallback.emit(pluginId, value1)

  2336.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2337.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2338.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2339.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2340.     elif action == ENGINE_CALLBACK_UPDATE:

  2341.         host.UpdateCallback.emit(pluginId)

  2342.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2343.         host.ReloadInfoCallback.emit(pluginId)

  2344.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2345.         host.ReloadParametersCallback.emit(pluginId)

  2346.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2347.         host.ReloadProgramsCallback.emit(pluginId)

  2348.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2349.         host.ReloadAllCallback.emit(pluginId)

  2350.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2351.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2352.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2353.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2354.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2355.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2356.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2357.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2358.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2359.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2360.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2361.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2362.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2363.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2364.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2365.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2366.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2367.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2368.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2369.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2370.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  2371.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2372.         host.EngineStoppedCallback.emit()

  2373.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2374.         host.ProcessModeChangedCallback.emit(value1)

  2375.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2376.         host.TransportModeChangedCallback.emit(value1)

  2377.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2378.         host.BufferSizeChangedCallback.emit(value1)

  2379.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2380.         host.SampleRateChangedCallback.emit(value3)

  2381.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2382.         host.ProjectLoadFinishedCallback.emit()

  2383.     elif action == ENGINE_CALLBACK_NSM:

  2384.         host.NSMCallback.emit(value1, value2, valueStr)

  2385.     elif action == ENGINE_CALLBACK_IDLE:

  2386.         QApplication.instance().processEvents()

  2387.     elif action == ENGINE_CALLBACK_INFO:

  2388.         host.InfoCallback.emit(valueStr)

  2389.     elif action == ENGINE_CALLBACK_ERROR:

  2390.         host.ErrorCallback.emit(valueStr)

  2391.     elif action == ENGINE_CALLBACK_QUIT:

  2392.         host.QuitCallback.emit()

  2393. 

  2394. # ------------------------------------------------------------------------------------------------------------

  2395. # File callback

  2396. 

  2397. def fileCallback(ptr, action, isDir, title, filter):

  2398.     ret = ("", "") if config_UseQt5 else ""

  2399. 

  2400.     if action == FILE_CALLBACK_DEBUG:

  2401.         pass

  2402.     elif action == FILE_CALLBACK_OPEN:

  2403.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2404.     elif action == FILE_CALLBACK_SAVE:

  2405.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  2406. 

  2407.     if config_UseQt5:

  2408.         ret = ret[0]

  2409.     if not ret:

  2410.         return None

  2411. 

  2412.     # FIXME

  2413.     global fileRet

  2414.     fileRet = c_char_p(ret.encode("utf-8"))

  2415.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2416.     return retval.contents.value

  2417. 

  2418. # ------------------------------------------------------------------------------------------------------------

  2419. # Init host

  2420. 

  2421. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2422.     pathBinaries, pathResources = getPaths(libPrefix)

  2423. 

  2424.     # --------------------------------------------------------------------------------------------------------

  2425.     # Check if we should open main lib as local or global

  2426. 

  2427.     settings = QSettings("falkTX", "Carla2")

  2428. 

  2429.     try:

  2430.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2431.     except:

  2432.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2433. 

  2434.     # --------------------------------------------------------------------------------------------------------

  2435.     # Fail if binary dir is not found

  2436. 

  2437.     if not os.path.exists(pathBinaries):

  2438.         if failError:

  2439.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2440.             sys.exit(1)

  2441.         return

  2442. 

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

  2444.     # Set Carla library name

  2445. 

  2446.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2447.     libname   = os.path.join(pathBinaries, libname)

  2448.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2449. 

  2450.     # --------------------------------------------------------------------------------------------------------

  2451.     # Print info

  2452. 

  2453.     print("Carla %s started, status:" % VERSION)

  2454.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2455.     print("  Qt version:     %s" % qVersion())

  2456.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2457.     print("  Binary dir:     %s" % pathBinaries)

  2458.     print("  Resources dir:  %s" % pathResources)

  2459. 

  2460.     # --------------------------------------------------------------------------------------------------------

  2461.     # Init host

  2462. 

  2463.     if failError:

  2464.         # no try

  2465.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2466.     else:

  2467.         try:

  2468.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2469.         except:

  2470.             host = CarlaHostQtNull()

  2471. 

  2472.     host.isControl = isControl

  2473.     host.isPlugin  = isPlugin

  2474. 

  2475.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2476.     host.set_file_callback(fileCallback)

  2477. 

  2478.     # If it's a plugin the paths are already set

  2479.     if not isPlugin:

  2480.         host.pathBinaries  = pathBinaries

  2481.         host.pathResources = pathResources

  2482.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2483.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2484. 

  2485.         if not isControl:

  2486.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2487. 

  2488.     # --------------------------------------------------------------------------------------------------------

  2489.     # Init utils

  2490. 

  2491.     gCarla.utils = CarlaUtils(utilsname)

  2492.     gCarla.utils.set_process_name(os.path.basename(initName))

  2493. 

  2494.     try:

  2495.         sys.stdout.flush()

  2496.     except:

  2497.         pass

  2498. 

  2499.     sys.stdout = CarlaPrint(False)

  2500.     sys.stderr = CarlaPrint(True)

  2501. 

  2502.     if config_UseQt5:

  2503.         sys.excepthook = sys_excepthook

  2504. 

  2505.     # --------------------------------------------------------------------------------------------------------

  2506.     # Done

  2507. 

  2508.     return host

  2509. 

  2510. # ------------------------------------------------------------------------------------------------------------

  2511. # Load host settings

  2512. 

  2513. def loadHostSettings(host):

  2514.     # kdevelop likes this :)

  2515.     if False: host = CarlaHostNull()

  2516. 

  2517.     settings = QSettings("falkTX", "Carla2")

  2518. 

  2519.     try:

  2520.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2521.     except:

  2522.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2523. 

  2524.     try:

  2525.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2526.     except:

  2527.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2528. 

  2529.     try:

  2530.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2531.     except:

  2532.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2533. 

  2534.     try:

  2535.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2536.     except:

  2537.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2538. 

  2539.     try:

  2540.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2541.     except:

  2542.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2543. 

  2544.     try:

  2545.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2546.     except:

  2547.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2548. 

  2549.     try:

  2550.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2551.     except:

  2552.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2553. 

  2554.     try:

  2555.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2556.     except:

  2557.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2558. 

  2559.     try:

  2560.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2561.     except:

  2562.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2563. 

  2564.     try:

  2565.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2566.     except:

  2567.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2568. 

  2569.     try:

  2570.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2571.     except:

  2572.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2573. 

  2574.     try:

  2575.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2576.     except:

  2577.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2578. 

  2579.     try:

  2580.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2581.     except:

  2582.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2583. 

  2584.     if host.isPlugin:

  2585.         return

  2586. 

  2587.     # enums

  2588.     if host.audioDriverForced is None:

  2589.         try:

  2590.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2591.         except:

  2592.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2593. 

  2594.     if not host.processModeForced:

  2595.         try:

  2596.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2597.         except:

  2598.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2599. 

  2600.     host.nextProcessMode = host.processMode

  2601. 

  2602.     # --------------------------------------------------------------------------------------------------------

  2603.     # fix things if needed

  2604. 

  2605.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2606.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2607.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2608. 

  2609.     # --------------------------------------------------------------------------------------------------------

  2610.     # run headless host now if nogui option enabled

  2611. 

  2612.     if gCarla.nogui:

  2613.         runHostWithoutUI(host)

  2614. 

  2615. # ------------------------------------------------------------------------------------------------------------

  2616. # Set host settings

  2617. 

  2618. def setHostSettings(host):

  2619.     # kdevelop likes this :)

  2620.     if False: host = CarlaHostNull()

  2621. 

  2622.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2623.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2624.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2625.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2626.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2627.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2628.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2629.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2630. 

  2631.     if host.isPlugin:

  2632.         return

  2633. 

  2634.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2635.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2636. 

  2637. # ------------------------------------------------------------------------------------------------------------

  2638. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2639. 

  2640. def setEngineSettings(host):

  2641.     # kdevelop likes this :)

  2642.     if False: host = CarlaHostNull()

  2643. 

  2644.     # --------------------------------------------------------------------------------------------------------

  2645.     # do nothing if control

  2646. 

  2647.     if host.isControl:

  2648.         return "Control"

  2649. 

  2650.     # --------------------------------------------------------------------------------------------------------

  2651. 

  2652.     settings = QSettings("falkTX", "Carla2")

  2653. 

  2654.     # --------------------------------------------------------------------------------------------------------

  2655.     # main settings

  2656. 

  2657.     setHostSettings(host)

  2658. 

  2659.     # --------------------------------------------------------------------------------------------------------

  2660.     # plugin paths

  2661. 

  2662.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2663.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2664.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2665.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2666.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2667.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2668.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2669. 

  2670.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2671.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2672.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2673.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2674.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2675.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2676.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2677. 

  2678.     # --------------------------------------------------------------------------------------------------------

  2679.     # don't continue if plugin

  2680. 

  2681.     if host.isPlugin:

  2682.         return "Plugin"

  2683. 

  2684.     # --------------------------------------------------------------------------------------------------------

  2685.     # driver and device settings

  2686. 

  2687.     # driver name

  2688.     if host.audioDriverForced is not None:

  2689.         audioDriver = host.audioDriverForced

  2690.     else:

  2691.         try:

  2692.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2693.         except:

  2694.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2695. 

  2696.     # driver options

  2697.     try:

  2698.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2699.     except:

  2700.         audioDevice = ""

  2701. 

  2702.     try:

  2703.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2704.     except:

  2705.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2706. 

  2707.     try:

  2708.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2709.     except:

  2710.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2711. 

  2712.     try:

  2713.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2714.     except:

  2715.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2716. 

  2717.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2718.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2719.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2720.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2721. 

  2722.     # --------------------------------------------------------------------------------------------------------

  2723.     # fix things if needed

  2724. 

  2725.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2726.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2727.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2728. 

  2729.     # --------------------------------------------------------------------------------------------------------

  2730.     # wine settings

  2731. 

  2732.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2733.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2734.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2735.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2736.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2737.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2738. 

  2739.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2740.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2741.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2742.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2743.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2744.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2745. 

  2746.     # --------------------------------------------------------------------------------------------------------

  2747.     # return selected driver name

  2748. 

  2749.     return audioDriver

  2750. 

  2751. # ------------------------------------------------------------------------------------------------------------

  2752. # Run Carla without showing UI

  2753. 

  2754. def runHostWithoutUI(host):

  2755.     # kdevelop likes this :)

  2756.     if False: host = CarlaHostNull()

  2757. 

  2758.     # --------------------------------------------------------------------------------------------------------

  2759.     # Some initial checks

  2760. 

  2761.     if not gCarla.nogui:

  2762.         return

  2763. 

  2764.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2765. 

  2766.     if not projectFile:

  2767.         print("Carla no-gui mode can only be used together with a project file.")

  2768.         sys.exit(1)

  2769. 

  2770.     # --------------------------------------------------------------------------------------------------------

  2771.     # Additional imports

  2772. 

  2773.     from time import sleep

  2774. 

  2775.     # --------------------------------------------------------------------------------------------------------

  2776.     # Init engine

  2777. 

  2778.     audioDriver = setEngineSettings(host)

  2779.     if not host.engine_init(audioDriver, "Carla-nogui"):

  2780.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2781.         sys.exit(1)

  2782. 

  2783.     if not host.load_project(projectFile):

  2784.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2785.         host.engine_close()

  2786.         sys.exit(1)

  2787. 

  2788.     # --------------------------------------------------------------------------------------------------------

  2789.     # Idle

  2790. 

  2791.     while host.is_engine_running() and not gCarla.term:

  2792.         host.engine_idle()

  2793.         sleep(0.5)

  2794. 

  2795.     # --------------------------------------------------------------------------------------------------------

  2796.     # Stop

  2797. 

  2798.     host.engine_close()

  2799.     sys.exit(0)

  2800. 

  2801. # ------------------------------------------------------------------------------------------------------------