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Carla
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Audio plugin host https://kx.studio/carla
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Carla/source/frontend/carla_host.py

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  1. #!/usr/bin/env python3

  2. # -*- coding: utf-8 -*-

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2019 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 (Global)

  21. 

  22. import json

  23. 

  24. # This fails in some configurations, assume >= 5.6.0 in that case

  25. try:

  26.     from PyQt5.Qt import PYQT_VERSION

  27. except ImportError:

  28.     PYQT_VERSION = 0x50600

  29. 

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

  31. from PyQt5.QtGui import QImage, QPalette, QBrush

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

  33. 

  34. # ------------------------------------------------------------------------------------------------------------

  35. # Imports (Custom)

  36. 

  37. import ui_carla_host

  38. 

  39. from carla_app import *

  40. from carla_database import *

  41. from carla_settings import *

  42. from carla_utils import *

  43. from carla_widgets import *

  44. 

  45. from patchcanvas import patchcanvas

  46. from widgets.digitalpeakmeter import DigitalPeakMeter

  47. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  48. 

  49. # ------------------------------------------------------------------------------------------------------------

  50. # Try Import OpenGL

  51. 

  52. try:

  53.     from PyQt5.QtOpenGL import QGLWidget

  54.     hasGL = True

  55. except:

  56.     hasGL = False

  57. 

  58. # ------------------------------------------------------------------------------------------------------------

  59. # Safe exception hook, needed for PyQt5

  60. 

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

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

  63. 

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

  65. # Session Management support

  66. 

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

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

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

  70. 

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

  72. # Small print helper

  73. 

  74. def processMode2Str(processMode):

  75.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  76.         return "Single client"

  77.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  78.         return "Multi client"

  79.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  80.         return "Continuous Rack"

  81.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  82.         return "Patchbay"

  83.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  84.         return "Bridge"

  85.     return "Unknown"

  86. 

  87. # ------------------------------------------------------------------------------------------------------------

  88. # Carla Print class

  89. 

  90. class CarlaPrint:

  91.     def __init__(self, err):

  92.         self.err = err

  93. 

  94.     def flush(self):

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

  96. 

  97.     def write(self, string):

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

  99. 

  100. # ------------------------------------------------------------------------------------------------------------

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

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

  105.     # signals

  106.     SIGTERM = pyqtSignal()

  107.     SIGUSR1 = pyqtSignal()

  108. 

  109.     # CustomActions

  110.     CUSTOM_ACTION_NONE         = 0

  111.     CUSTOM_ACTION_APP_CLOSE    = 1

  112.     CUSTOM_ACTION_PROJECT_LOAD = 2

  113. 

  114.     # --------------------------------------------------------------------------------------------------------

  115. 

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

  117.         QMainWindow.__init__(self, parent)

  118.         self.host = host

  119.         self.ui = ui_carla_host.Ui_CarlaHostW()

  120.         self.ui.setupUi(self)

  121.         gCarla.gui = self

  122. 

  123.         if False:

  124.             # kdevelop likes this :)

  125.             host = CarlaHostNull()

  126.             self.host = host

  127. 

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

  129. 

  130.         self.fParentOrSelf = parent or self

  131. 

  132.         # ----------------------------------------------------------------------------------------------------

  133.         # Internal stuff

  134. 

  135.         self.fIdleTimerNull = self.startTimer(1000) # keep application signals alive

  136.         self.fIdleTimerFast = 0

  137.         self.fIdleTimerSlow = 0

  138. 

  139.         self.fLadspaRdfNeedsUpdate = True

  140.         self.fLadspaRdfList = []

  141. 

  142.         self.fPluginCount = 0

  143.         self.fPluginList  = []

  144. 

  145.         self.fPluginDatabaseDialog = None

  146.         self.fFavoritePlugins = []

  147. 

  148.         self.fProjectFilename  = ""

  149.         self.fIsProjectLoading = False

  150.         self.fCurrentlyRemovingAllPlugins = False

  151. 

  152.         self.fLastTransportBPM   = 0.0

  153.         self.fLastTransportFrame = 0

  154.         self.fLastTransportState = False

  155.         self.fBufferSize         = 0

  156.         self.fSampleRate         = 0.0

  157.         self.fOscAddressTCP      = ""

  158.         self.fOscAddressUDP      = ""

  159.         self.fOscReportedHost    = ""

  160. 

  161.         if MACOS:

  162.             self.fMacClosingHelper = True

  163. 

  164.         # CancelableActionCallback Box

  165.         self.fCancelableActionBox = None

  166. 

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

  168.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  169. 

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

  171.         self.fFirstEngineInit = True

  172. 

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

  174.         self.fSavedSettings = {}

  175. 

  176.         if host.isControl:

  177.             self.fClientName         = "Carla-Control"

  178.             self.fSessionManagerName = "Control"

  179.         elif host.isPlugin:

  180.             self.fClientName         = "Carla-Plugin"

  181.             self.fSessionManagerName = "Plugin"

  182.         elif LADISH_APP_NAME:

  183.             self.fClientName         = LADISH_APP_NAME

  184.             self.fSessionManagerName = "LADISH"

  185.         elif NSM_URL and host.nsmOK:

  186.             self.fClientName         = "Carla.tmp"

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

  188.         else:

  189.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  190.             self.fSessionManagerName = ""

  191. 

  192.         # ----------------------------------------------------------------------------------------------------

  193.         # Internal stuff (patchbay)

  194. 

  195.         self.fExportImage = QImage()

  196. 

  197.         self.fPeaksCleared = True

  198. 

  199.         self.fExternalPatchbay = False

  200.         self.fSelectedPlugins  = []

  201. 

  202.         self.fCanvasWidth  = 0

  203.         self.fCanvasHeight = 0

  204.         self.fMiniCanvasUpdateTimeout = 0

  205. 

  206.         self.fWithCanvas = withCanvas

  207. 

  208.         # ----------------------------------------------------------------------------------------------------

  209.         # Set up GUI (engine stopped)

  210. 

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

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

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

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

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

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

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

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

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

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

  221. 

  222.             if self.host.isControl:

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

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

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

  226.                 self.ui.tabUtils.removeTab(0)

  227.             else:

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

  229. 

  230.                 if not withCanvas:

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

  232. 

  233.         else:

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

  235. 

  236.             if WINDOWS:

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

  238. 

  239.         if self.host.isControl:

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

  241.         else:

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

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

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

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

  246. 

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

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

  249. 

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

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

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

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

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

  255. 

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

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

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

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

  260. 

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

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

  263. 

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

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

  266. 

  267.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  285.             self.ui.tw_miniCanvas.hide()

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

  287.             if WINDOWS:

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

  289. 

  290.         # ----------------------------------------------------------------------------------------------------

  291.         # Set up GUI (disk)

  292. 

  293.         exts = gCarla.utils.get_supported_file_extensions()

  294. 

  295.         self.fDirModel = QFileSystemModel(self)

  296.         self.fDirModel.setRootPath(HOME)

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

  298. 

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

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

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

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

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

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

  305. 

  306.         # ----------------------------------------------------------------------------------------------------

  307.         # Set up GUI (transport)

  308. 

  309.         fontMetrics   = self.ui.l_transport_bbt.fontMetrics()

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

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

  312. 

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

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

  315. 

  316.         if minLabelWidth < labelTimeWidth:

  317.             minLabelWidth = labelTimeWidth

  318.         if minLabelWidth < labelBBTWidth:

  319.             minLabelWidth = labelBBTWidth

  320. 

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

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

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

  324. 

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

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

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

  328. 

  329.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  342. 

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

  344. 

  345.         # ----------------------------------------------------------------------------------------------------

  346.         # Set up GUI (rack)

  347. 

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

  349. 

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

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

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

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

  354. 

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

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

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

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

  359. 

  360.         self.updateStyle()

  361. 

  362.         self.ui.rack.setStyleSheet("""

  363.           CarlaRackList#CarlaRackList {

  364.             background-color: black;

  365.           }

  366.         """)

  367. 

  368.         # ----------------------------------------------------------------------------------------------------

  369.         # Set up GUI (patchbay)

  370. 

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

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

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

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

  375. 

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

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

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

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

  380. 

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

  382.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  384. 

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

  386. 

  387.         self.ui.miniCanvasPreview.setRealParent(self)

  388.         self.ui.tw_miniCanvas.tabBar().hide()

  389. 

  390.         # ----------------------------------------------------------------------------------------------------

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

  392. 

  393.         if MACOS:

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

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

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

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

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

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

  400. 

  401.         # ----------------------------------------------------------------------------------------------------

  402.         # Load Settings

  403. 

  404.         self.loadSettings(True)

  405. 

  406.         # ----------------------------------------------------------------------------------------------------

  407.         # Set-up Canvas

  408. 

  409.         if withCanvas:

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

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

  412. 

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

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

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

  416. 

  417.             self.setupCanvas()

  418. 

  419.         # ----------------------------------------------------------------------------------------------------

  420.         # Connect actions to functions

  421. 

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

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

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

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

  426. 

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

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

  429.         self.ui.act_engine_panic.triggered.connect(self.slot_pluginsDisable)

  430.         self.ui.act_engine_config.triggered.connect(self.slot_engineConfig)

  431. 

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

  433.         self.ui.act_plugin_add_jack.triggered.connect(self.slot_jackAppAdd)

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

  435. 

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

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

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

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

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

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

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

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

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

  445. 

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

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

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

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

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

  451. 

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

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

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

  455. 

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

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

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

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

  460. 

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

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

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

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

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

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

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

  468. 

  469.         self.ui.b_xruns.clicked.connect(self.slot_xrunClear)

  470. 

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

  472. 

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

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

  475. 

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

  477. 

  478.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  495.             self.scene.selectionChanged.connect(self.slot_canvasSelectionChanged)

  496. 

  497.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  498.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  499. 

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

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

  502.         host.TransportModeChangedCallback.connect(self.slot_handleTransportModeChangedCallback)

  503.         host.BufferSizeChangedCallback.connect(self.slot_handleBufferSizeChangedCallback)

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

  505.         host.CancelableActionCallback.connect(self.slot_handleCancelableActionCallback)

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

  507. 

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

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

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

  511. 

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

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

  514. 

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

  516. 

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

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

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

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

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

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

  523.         host.PatchbayPortChangedCallback.connect(self.slot_handlePatchbayPortChangedCallback)

  524.         host.PatchbayPortGroupAddedCallback.connect(self.slot_handlePatchbayPortGroupAddedCallback)

  525.         host.PatchbayPortGroupRemovedCallback.connect(self.slot_handlePatchbayPortGroupRemovedCallback)

  526.         host.PatchbayPortGroupChangedCallback.connect(self.slot_handlePatchbayPortGroupChangedCallback)

  527. 

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

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

  530. 

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

  532. 

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

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

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

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

  537.         host.InlineDisplayRedrawCallback.connect(self.slot_handleInlineDisplayRedrawCallback)

  538. 

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

  540.         # Final setup

  541. 

  542.         self.ui.text_logs.clear()

  543.         self.setProperWindowTitle()

  544. 

  545.         # Disable non-supported features

  546.         features = gCarla.utils.get_supported_features()

  547. 

  548.         if "link" not in features:

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

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

  551. 

  552.         if "juce" not in features:

  553.             self.ui.act_help_about_juce.setEnabled(False)

  554.             self.ui.act_help_about_juce.setVisible(False)

  555. 

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

  557.         if self.host.isPlugin or self.host.isRemote:

  558.             self.startTimers()

  559. 

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

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

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

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

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

  565. 

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

  567.         if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY:

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

  569. 

  570.         # Load initial project file if set

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

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

  573. 

  574.             if projectFile:

  575.                 self.loadProjectLater(projectFile)

  576. 

  577.         # For NSM we wait for the open message

  578.         if NSM_URL and host.nsmOK:

  579.             host.nsm_ready(NSM_CALLBACK_INIT)

  580.             return

  581. 

  582.         if not host.isControl:

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

  584. 

  585.     # --------------------------------------------------------------------------------------------------------

  586.     # Setup

  587. 

  588.     def compactPlugin(self, pluginId):

  589.         if pluginId > self.fPluginCount:

  590.             return

  591. 

  592.         pitem = self.fPluginList[pluginId]

  593. 

  594.         if pitem is None:

  595.             return

  596. 

  597.         pitem.recreateWidget(True)

  598. 

  599.     def changePluginColor(self, pluginId, color, colorStr):

  600.         if pluginId > self.fPluginCount:

  601.             return

  602. 

  603.         pitem = self.fPluginList[pluginId]

  604. 

  605.         if pitem is None:

  606.             return

  607. 

  608.         self.host.set_custom_data(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaColor", colorStr)

  609.         pitem.recreateWidget(newColor = color)

  610. 

  611.     def changePluginSkin(self, pluginId, skin):

  612.         if pluginId > self.fPluginCount:

  613.             return

  614. 

  615.         pitem = self.fPluginList[pluginId]

  616. 

  617.         if pitem is None:

  618.             return

  619. 

  620.         self.host.set_custom_data(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkin", skin)

  621.         if skin not in ("default","rncbc","presets","mpresets"):

  622.             pitem.recreateWidget(newSkin = skin, newColor = (255,255,255))

  623.         else:

  624.             pitem.recreateWidget(newSkin = skin)

  625. 

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

  627.         if pluginIdA == pluginIdB:

  628.             return

  629.         if pluginIdA < 0 or pluginIdB < 0:

  630.             return

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

  632.             return

  633. 

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

  635. 

  636.         itemA = self.fPluginList[pluginIdA]

  637.         compactA = itemA.isCompacted()

  638.         guiShownA = itemA.isGuiShown()

  639. 

  640.         itemB = self.fPluginList[pluginIdB]

  641.         compactB = itemB.isCompacted()

  642.         guiShownB = itemB.isGuiShown()

  643. 

  644.         itemA.setPluginId(pluginIdA)

  645.         itemA.recreateWidget2(compactB, guiShownB)

  646. 

  647.         itemB.setPluginId(pluginIdB)

  648.         itemB.recreateWidget2(compactA, guiShownA)

  649. 

  650.         if self.fWithCanvas:

  651.             self.slot_canvasRefresh()

  652. 

  653.     def setLoadRDFsNeeded(self):

  654.         self.fLadspaRdfNeedsUpdate = True

  655. 

  656.     def setProperWindowTitle(self):

  657.         title = self.fClientName

  658. 

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

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

  661.         if self.fSessionManagerName:

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

  663. 

  664.         self.setWindowTitle(title)

  665. 

  666.     def updateBufferSize(self, newBufferSize):

  667.         if self.fBufferSize == newBufferSize:

  668.             return

  669.         self.fBufferSize = newBufferSize

  670.         self.ui.cb_buffer_size.clear()

  671.         self.ui.cb_buffer_size.addItem(str(newBufferSize))

  672.         self.ui.cb_buffer_size.setCurrentIndex(0)

  673. 

  674.     def updateSampleRate(self, newSampleRate):

  675.         if self.fSampleRate == newSampleRate:

  676.             return

  677.         self.fSampleRate = newSampleRate

  678.         self.ui.cb_sample_rate.clear()

  679.         self.ui.cb_sample_rate.addItem(str(newSampleRate))

  680.         self.ui.cb_sample_rate.setCurrentIndex(0)

  681.         self.refreshTransport(True)

  682. 

  683.     # --------------------------------------------------------------------------------------------------------

  684.     # Files

  685. 

  686.     def makeExtraFilename(self):

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

  688. 

  689.     def loadProjectNow(self):

  690.         if not self.fProjectFilename:

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

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

  693.             return

  694. 

  695.         self.projectLoadingStarted()

  696.         self.fIsProjectLoading = True

  697. 

  698.         if not self.host.load_project(self.fProjectFilename):

  699.             self.fIsProjectLoading = False

  700.             self.projectLoadingFinished()

  701. 

  702.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load project"),

  703.                              self.host.get_last_error(),

  704.                              QMessageBox.Ok, QMessageBox.Ok)

  705. 

  706.     def loadProjectLater(self, filename):

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

  708.         self.setProperWindowTitle()

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

  710. 

  711.     def saveProjectNow(self):

  712.         if not self.fProjectFilename:

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

  714. 

  715.         if not self.host.save_project(self.fProjectFilename):

  716.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to save project"),

  717.                              self.host.get_last_error(),

  718.                              QMessageBox.Ok, QMessageBox.Ok)

  719.             return

  720. 

  721.         if not self.fWithCanvas:

  722.             return

  723. 

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

  725.             json.dump({

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

  727.             }, fh)

  728. 

  729.     def projectLoadingStarted(self):

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

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

  732. 

  733.     def projectLoadingFinished(self):

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

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

  736. 

  737.         if not self.fWithCanvas:

  738.             return

  739. 

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

  741. 

  742.         extrafile = self.makeExtraFilename()

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

  744.             return

  745. 

  746.         try:

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

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

  749.         except:

  750.             return

  751. 

  752.         patchcanvas.restoreGroupPositions(canvasdata)

  753. 

  754.     # --------------------------------------------------------------------------------------------------------

  755.     # Files (menu actions)

  756. 

  757.     @pyqtSlot()

  758.     def slot_fileNew(self):

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

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

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

  762.             return

  763. 

  764.         self.pluginRemoveAll()

  765.         self.fProjectFilename = ""

  766.         self.setProperWindowTitle()

  767.         self.host.clear_project_filename()

  768. 

  769.     @pyqtSlot()

  770.     def slot_fileOpen(self):

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

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

  773. 

  774.         # FIXME use ok value, test if it works as expected

  775.         if not filename:

  776.             return

  777. 

  778.         newFile = True

  779. 

  780.         if self.fPluginCount > 0:

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

  782.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  784. 

  785.         if newFile:

  786.             self.pluginRemoveAll()

  787.             self.fProjectFilename = filename

  788.             self.setProperWindowTitle()

  789.             self.loadProjectNow()

  790.         else:

  791.             filenameOld = self.fProjectFilename

  792.             self.fProjectFilename = filename

  793.             self.loadProjectNow()

  794.             self.fProjectFilename = filenameOld

  795. 

  796.     @pyqtSlot()

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

  798.         if self.fProjectFilename and not saveAs:

  799.             return self.saveProjectNow()

  800. 

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

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

  803. 

  804.         # FIXME use ok value, test if it works as expected

  805.         if not filename:

  806.             return

  807. 

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

  809.             filename += ".carxp"

  810. 

  811.         if self.fProjectFilename != filename:

  812.             self.fProjectFilename = filename

  813.             self.setProperWindowTitle()

  814. 

  815.         self.saveProjectNow()

  816. 

  817.     @pyqtSlot()

  818.     def slot_fileSaveAs(self):

  819.         self.slot_fileSave(True)

  820. 

  821.     @pyqtSlot()

  822.     def slot_loadProjectNow(self):

  823.         self.loadProjectNow()

  824. 

  825.     # --------------------------------------------------------------------------------------------------------

  826.     # Engine (menu actions)

  827. 

  828.     @pyqtSlot()

  829.     def slot_engineStart(self):

  830.         audioDriver = setEngineSettings(self.host)

  831.         firstInit   = self.fFirstEngineInit

  832. 

  833.         self.fFirstEngineInit = False

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

  835. 

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

  837.             if firstInit and not (self.host.isControl or self.host.isPlugin):

  838.                 settings = QSettings()

  839.                 lastBpm  = settings.value("LastBPM", 120.0, type=float)

  840.                 del settings

  841.                 self.host.transport_bpm(lastBpm)

  842.             return

  843. 

  844.         elif firstInit:

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

  846.             return

  847. 

  848.         audioError = self.host.get_last_error()

  849. 

  850.         if audioError:

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

  852.         else:

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

  854. 

  855.     @pyqtSlot()

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

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

  858. 

  859.         if self.fPluginCount == 0:

  860.             self.engineStopFinal()

  861.             return True

  862. 

  863.         if not forced:

  864.             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"

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

  866.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  867.             if ask != QMessageBox.Yes:

  868.                 return False

  869. 

  870.         return self.slot_engineStopTryAgain()

  871. 

  872.     @pyqtSlot()

  873.     def slot_engineConfig(self):

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

  875. 

  876.         if not dialog.exec_():

  877.             return

  878. 

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

  880.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Engine was stopped while configuring settings, all changes have been ignored"))

  881.             return

  882. 

  883.         bufferSize, sampleRate = dialog.getValues()

  884.         self.host.set_engine_buffer_size_and_sample_rate(bufferSize, sampleRate)

  885. 

  886.     @pyqtSlot()

  887.     def slot_engineStopTryAgain(self):

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

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

  890.             return False

  891. 

  892.         self.engineStopFinal()

  893.         return True

  894. 

  895.     def engineStopFinal(self):

  896.         self.killTimers()

  897. 

  898.         if self.host.is_engine_running():

  899.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  900.                 self.removeAllPlugins()

  901.             elif self.fPluginCount != 0:

  902.                 self.fCurrentlyRemovingAllPlugins = True

  903.                 self.projectLoadingStarted()

  904. 

  905.             if not self.host.remove_all_plugins():

  906.                 self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

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

  908. 

  909.             if not self.host.engine_close():

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

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

  912. 

  913.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  914.             self.close()

  915.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  916.             self.slot_engineStart()

  917.             self.loadProjectNow()

  918.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  919. 

  920.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  921. 

  922.     # --------------------------------------------------------------------------------------------------------

  923.     # Engine (host callbacks)

  924. 

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

  926.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

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

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

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

  930. 

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

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

  933. 

  934.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY: # and not self.host.isPlugin:

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

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

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

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

  939.             self.fExternalPatchbay = False

  940.         else:

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

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

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

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

  945.             self.fExternalPatchbay = True

  946. 

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

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

  949. 

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

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

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

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

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

  955. 

  956.         if not self.host.isPlugin:

  957.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  958. 

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

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

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

  962. 

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

  964.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  965. 

  966.         if self.ui.cb_transport_link.isEnabled():

  967.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  968. 

  969.         self.updateBufferSize(bufferSize)

  970.         self.updateSampleRate(int(sampleRate))

  971.         self.refreshRuntimeInfo(0.0, 0)

  972.         self.startTimers()

  973. 

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

  975.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  976.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  977.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  978.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  979. 

  980.     @pyqtSlot()

  981.     def slot_handleEngineStoppedCallback(self):

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

  983. 

  984.         patchcanvas.clear()

  985.         self.killTimers()

  986. 

  987.         # just in case

  988.         self.removeAllPlugins()

  989.         self.refreshRuntimeInfo(0.0, 0)

  990. 

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

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

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

  994. 

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

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

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

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

  999. 

  1000.         if self.host.isPlugin or not self.fSessionManagerName:

  1001.             self.ui.act_file_open.setEnabled(False)

  1002.             self.ui.act_file_save_as.setEnabled(False)

  1003. 

  1004.     @pyqtSlot(int, str)

  1005.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1006.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1007. 

  1008.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1009.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1010. 

  1011.     @pyqtSlot(int)

  1012.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1013.         self.updateBufferSize(newBufferSize)

  1014. 

  1015.     @pyqtSlot(float)

  1016.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1017.         self.updateSampleRate(int(newSampleRate))

  1018. 

  1019.     @pyqtSlot(int, bool, str)

  1020.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1021.         if self.fCancelableActionBox is not None:

  1022.             self.fCancelableActionBox.close()

  1023. 

  1024.         if started:

  1025.             self.fCancelableActionBox = QMessageBox(self)

  1026.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1027.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1028.             self.fCancelableActionBox.setText(action)

  1029.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1030.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1031.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1032.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1033.             self.fCancelableActionBox.show()

  1034. 

  1035.         else:

  1036.             self.fCancelableActionBox = None

  1037. 

  1038.     @pyqtSlot()

  1039.     def slot_canlableActionBoxClicked(self):

  1040.         self.host.cancel_engine_action()

  1041. 

  1042.     @pyqtSlot()

  1043.     def slot_handleProjectLoadFinishedCallback(self):

  1044.         self.fIsProjectLoading = False

  1045.         self.projectLoadingFinished()

  1046. 

  1047.     # --------------------------------------------------------------------------------------------------------

  1048.     # Plugins

  1049. 

  1050.     def removeAllPlugins(self):

  1051.         self.ui.act_plugin_remove_all.setEnabled(False)

  1052.         patchcanvas.handleAllPluginsRemoved()

  1053. 

  1054.         while self.ui.listWidget.takeItem(0):

  1055.             pass

  1056. 

  1057.         self.clearSideStuff()

  1058. 

  1059.         for pitem in self.fPluginList:

  1060.             if pitem is None:

  1061.                 continue

  1062. 

  1063.             pitem.close()

  1064.             del pitem

  1065. 

  1066.         self.fPluginCount = 0

  1067.         self.fPluginList  = []

  1068. 

  1069.     # --------------------------------------------------------------------------------------------------------

  1070.     # Plugins (menu actions)

  1071. 

  1072.     def showAddPluginDialog(self):

  1073.         if self.fPluginDatabaseDialog is None:

  1074.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1075.         dialog = self.fPluginDatabaseDialog

  1076. 

  1077.         ret = dialog.exec_()

  1078. 

  1079.         if dialog.fFavoritePluginsChanged:

  1080.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1081. 

  1082.         if not ret:

  1083.             return

  1084. 

  1085.         if not self.host.is_engine_running():

  1086.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1087.             return

  1088. 

  1089.         btype    = dialog.fRetPlugin['build']

  1090.         ptype    = dialog.fRetPlugin['type']

  1091.         filename = dialog.fRetPlugin['filename']

  1092.         label    = dialog.fRetPlugin['label']

  1093.         uniqueId = dialog.fRetPlugin['uniqueId']

  1094.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1095. 

  1096.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1097. 

  1098.     def showAddJackAppDialog(self):

  1099.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1100. 

  1101.         if not dialog.exec_():

  1102.             return

  1103. 

  1104.         if not self.host.is_engine_running():

  1105.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1106.             return

  1107. 

  1108.         return dialog.getCommandAndFlags()

  1109. 

  1110.     @pyqtSlot()

  1111.     def slot_favoritePluginAdd(self):

  1112.         plugin = self.sender().data()

  1113. 

  1114.         if plugin is None:

  1115.             return

  1116. 

  1117.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1118.                                     plugin['label'], plugin['uniqueId'], None, 0x0):

  1119.             CustomMessageBox(self,

  1120.                              QMessageBox.Critical,

  1121.                              self.tr("Error"),

  1122.                              self.tr("Failed to load plugin"),

  1123.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1124. 

  1125.     @pyqtSlot()

  1126.     def showPluginActionsMenu(self):

  1127.         menu = QMenu(self)

  1128. 

  1129.         menu.addSection("Plugins")

  1130.         menu.addAction(self.ui.act_plugin_add)

  1131. 

  1132.         if len(self.fFavoritePlugins) != 0:

  1133.             fmenu = QMenu("Add from favorites", self)

  1134.             for p in self.fFavoritePlugins:

  1135.                 act = fmenu.addAction(p['name'])

  1136.                 act.setData(p)

  1137.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1138.             menu.addMenu(fmenu)

  1139. 

  1140.         menu.addAction(self.ui.act_plugin_remove_all)

  1141. 

  1142.         menu.addSection("All plugins (macros)")

  1143.         menu.addAction(self.ui.act_plugins_enable)

  1144.         menu.addAction(self.ui.act_plugins_disable)

  1145.         menu.addSeparator()

  1146.         menu.addAction(self.ui.act_plugins_volume100)

  1147.         menu.addAction(self.ui.act_plugins_mute)

  1148.         menu.addSeparator()

  1149.         menu.addAction(self.ui.act_plugins_wet100)

  1150.         menu.addAction(self.ui.act_plugins_bypass)

  1151.         menu.addSeparator()

  1152.         menu.addAction(self.ui.act_plugins_center)

  1153.         menu.addSeparator()

  1154.         menu.addAction(self.ui.act_plugins_compact)

  1155.         menu.addAction(self.ui.act_plugins_expand)

  1156. 

  1157.         menu.exec_(QCursor.pos())

  1158. 

  1159.     @pyqtSlot()

  1160.     def slot_pluginAdd(self):

  1161.         data = self.showAddPluginDialog()

  1162. 

  1163.         if data is None:

  1164.             return

  1165. 

  1166.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1167. 

  1168.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1169.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1170. 

  1171.     @pyqtSlot()

  1172.     def slot_confirmRemoveAll(self):

  1173.         if self.fPluginCount == 0:

  1174.             return

  1175. 

  1176.         if QMessageBox.question(self, self.tr("Remove All"),

  1177.                                       self.tr("Are you sure you want to remove all plugins?"),

  1178.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1179.             return

  1180. 

  1181.         self.pluginRemoveAll()

  1182. 

  1183.     def pluginRemoveAll(self):

  1184.         if self.fPluginCount == 0:

  1185.             return

  1186. 

  1187.         self.fCurrentlyRemovingAllPlugins = True

  1188.         self.projectLoadingStarted()

  1189. 

  1190.         if not self.host.remove_all_plugins():

  1191.             self.projectLoadingFinished()

  1192.             self.fCurrentlyRemovingAllPlugins = False

  1193.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1194.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1195. 

  1196.     @pyqtSlot()

  1197.     def slot_jackAppAdd(self):

  1198.         data = self.showAddJackAppDialog()

  1199. 

  1200.         if data is None:

  1201.             return

  1202. 

  1203.         filename, name, label = data

  1204. 

  1205.         if not filename:

  1206.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1207.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1208.             return

  1209. 

  1210.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1211.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1212.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1213. 

  1214.     # --------------------------------------------------------------------------------------------------------

  1215.     # Plugins (macros)

  1216. 

  1217.     @pyqtSlot()

  1218.     def slot_pluginsEnable(self):

  1219.         if not self.host.is_engine_running():

  1220.             return

  1221. 

  1222.         for pitem in self.fPluginList:

  1223.             if pitem is None:

  1224.                 break

  1225. 

  1226.             pitem.getWidget().setActive(True, True, True)

  1227. 

  1228.     @pyqtSlot()

  1229.     def slot_pluginsDisable(self):

  1230.         if not self.host.is_engine_running():

  1231.             return

  1232. 

  1233.         for pitem in self.fPluginList:

  1234.             if pitem is None:

  1235.                 break

  1236. 

  1237.             pitem.getWidget().setActive(False, True, True)

  1238. 

  1239.     @pyqtSlot()

  1240.     def slot_pluginsVolume100(self):

  1241.         if not self.host.is_engine_running():

  1242.             return

  1243. 

  1244.         for pitem in self.fPluginList:

  1245.             if pitem is None:

  1246.                 break

  1247. 

  1248.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1249. 

  1250.     @pyqtSlot()

  1251.     def slot_pluginsMute(self):

  1252.         if not self.host.is_engine_running():

  1253.             return

  1254. 

  1255.         for pitem in self.fPluginList:

  1256.             if pitem is None:

  1257.                 break

  1258. 

  1259.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1260. 

  1261.     @pyqtSlot()

  1262.     def slot_pluginsWet100(self):

  1263.         if not self.host.is_engine_running():

  1264.             return

  1265. 

  1266.         for pitem in self.fPluginList:

  1267.             if pitem is None:

  1268.                 break

  1269. 

  1270.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1271. 

  1272.     @pyqtSlot()

  1273.     def slot_pluginsBypass(self):

  1274.         if not self.host.is_engine_running():

  1275.             return

  1276. 

  1277.         for pitem in self.fPluginList:

  1278.             if pitem is None:

  1279.                 break

  1280. 

  1281.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1282. 

  1283.     @pyqtSlot()

  1284.     def slot_pluginsCenter(self):

  1285.         if not self.host.is_engine_running():

  1286.             return

  1287. 

  1288.         for pitem in self.fPluginList:

  1289.             if pitem is None:

  1290.                 break

  1291. 

  1292.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1293.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1294.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1295. 

  1296.     @pyqtSlot()

  1297.     def slot_pluginsCompact(self):

  1298.         for pitem in self.fPluginList:

  1299.             if pitem is None:

  1300.                 break

  1301.             pitem.compact()

  1302. 

  1303.     @pyqtSlot()

  1304.     def slot_pluginsExpand(self):

  1305.         for pitem in self.fPluginList:

  1306.             if pitem is None:

  1307.                 break

  1308.             pitem.expand()

  1309. 

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

  1311.     # Plugins (host callbacks)

  1312. 

  1313.     @pyqtSlot(int, str)

  1314.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1315.         if pluginId != self.fPluginCount:

  1316.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1317.             pitem = self.getPluginItem(pluginId)

  1318.             pitem.recreateWidget()

  1319.             return

  1320. 

  1321.         pitem = self.ui.listWidget.createItem(pluginId)

  1322.         self.fPluginList.append(pitem)

  1323.         self.fPluginCount += 1

  1324. 

  1325.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1326. 

  1327.     @pyqtSlot(int)

  1328.     def slot_handlePluginRemovedCallback(self, pluginId):

  1329.         patchcanvas.handlePluginRemoved(pluginId)

  1330. 

  1331.         if pluginId in self.fSelectedPlugins:

  1332.             self.clearSideStuff()

  1333. 

  1334.         if self.fPluginCount == 0:

  1335.             return

  1336. 

  1337.         pitem = self.getPluginItem(pluginId)

  1338. 

  1339.         self.fPluginCount -= 1

  1340.         self.fPluginList.pop(pluginId)

  1341.         self.ui.listWidget.takeItem(pluginId)

  1342. 

  1343.         if pitem is not None:

  1344.             pitem.close()

  1345.             del pitem

  1346. 

  1347.         if self.fPluginCount == 0:

  1348.             self.ui.act_plugin_remove_all.setEnabled(False)

  1349.             if self.fCurrentlyRemovingAllPlugins:

  1350.                 self.fCurrentlyRemovingAllPlugins = False

  1351.                 self.projectLoadingFinished()

  1352.             return

  1353. 

  1354.         # push all plugins 1 slot back

  1355.         for i in range(pluginId, self.fPluginCount):

  1356.             pitem = self.fPluginList[i]

  1357.             pitem.setPluginId(i)

  1358. 

  1359.         self.ui.act_plugin_remove_all.setEnabled(True)

  1360. 

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

  1362.     # Canvas

  1363. 

  1364.     def clearSideStuff(self):

  1365.         if self.fWithCanvas:

  1366.             self.scene.clearSelection()

  1367. 

  1368.         self.fSelectedPlugins = []

  1369. 

  1370.         self.ui.keyboard.allNotesOff(False)

  1371.         self.ui.scrollArea.setEnabled(False)

  1372. 

  1373.         self.fPeaksCleared = True

  1374.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1375.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1376.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1377.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1378. 

  1379.     def setupCanvas(self):

  1380.         pOptions = patchcanvas.options_t()

  1381.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1382.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1383.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1384.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1385.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1386.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1387. 

  1388.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1389.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1390.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1391.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1392.         else:

  1393.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1394. 

  1395.         pFeatures = patchcanvas.features_t()

  1396.         pFeatures.group_info   = False

  1397.         pFeatures.group_rename = False

  1398.         pFeatures.port_info    = False

  1399.         pFeatures.port_rename  = False

  1400.         pFeatures.handle_group_pos = True

  1401. 

  1402.         patchcanvas.setOptions(pOptions)

  1403.         patchcanvas.setFeatures(pFeatures)

  1404.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1405. 

  1406.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1407. 

  1408.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1409.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1410.             self.fCanvasHeight = int(tryCanvasSize[1])

  1411.         else:

  1412.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1413.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1414. 

  1415.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1416.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1417.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1418. 

  1419.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1420.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1421. 

  1422.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1423.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1424. 

  1425.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1426.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1427.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1428. 

  1429.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1430.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1431. 

  1432.         else:

  1433.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1434. 

  1435.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1436.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1437.         else:

  1438.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1439. 

  1440.     def updateCanvasInitialPos(self):

  1441.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1442.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1443.         patchcanvas.setInitialPos(x, y)

  1444. 

  1445.     def updateMiniCanvasLater(self):

  1446.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1447. 

  1448.     # --------------------------------------------------------------------------------------------------------

  1449.     # Canvas (menu actions)

  1450. 

  1451.     @pyqtSlot()

  1452.     def slot_canvasShowInternal(self):

  1453.         self.fExternalPatchbay = False

  1454.         self.ui.act_canvas_show_internal.blockSignals(True)

  1455.         self.ui.act_canvas_show_external.blockSignals(True)

  1456.         self.ui.act_canvas_show_internal.setChecked(True)

  1457.         self.ui.act_canvas_show_external.setChecked(False)

  1458.         self.ui.act_canvas_show_internal.blockSignals(False)

  1459.         self.ui.act_canvas_show_external.blockSignals(False)

  1460.         self.slot_canvasRefresh()

  1461. 

  1462.     @pyqtSlot()

  1463.     def slot_canvasShowExternal(self):

  1464.         self.fExternalPatchbay = True

  1465.         self.ui.act_canvas_show_internal.blockSignals(True)

  1466.         self.ui.act_canvas_show_external.blockSignals(True)

  1467.         self.ui.act_canvas_show_internal.setChecked(False)

  1468.         self.ui.act_canvas_show_external.setChecked(True)

  1469.         self.ui.act_canvas_show_internal.blockSignals(False)

  1470.         self.ui.act_canvas_show_external.blockSignals(False)

  1471.         self.slot_canvasRefresh()

  1472. 

  1473.     @pyqtSlot()

  1474.     def slot_canvasArrange(self):

  1475.         patchcanvas.arrange()

  1476. 

  1477.     @pyqtSlot()

  1478.     def slot_canvasRefresh(self):

  1479.         patchcanvas.clear()

  1480. 

  1481.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1482.             return

  1483. 

  1484.         if self.host.is_engine_running():

  1485.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1486. 

  1487.         self.updateMiniCanvasLater()

  1488. 

  1489.     @pyqtSlot()

  1490.     def slot_canvasZoomFit(self):

  1491.         self.scene.zoom_fit()

  1492. 

  1493.     @pyqtSlot()

  1494.     def slot_canvasZoomIn(self):

  1495.         self.scene.zoom_in()

  1496. 

  1497.     @pyqtSlot()

  1498.     def slot_canvasZoomOut(self):

  1499.         self.scene.zoom_out()

  1500. 

  1501.     @pyqtSlot()

  1502.     def slot_canvasZoomReset(self):

  1503.         self.scene.zoom_reset()

  1504. 

  1505.     @pyqtSlot()

  1506.     def slot_canvasSaveImage(self):

  1507.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1508. 

  1509.         # FIXME use ok value, test if it works as expected

  1510.         if not newPath:

  1511.             return

  1512. 

  1513.         self.scene.clearSelection()

  1514. 

  1515.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1516.             imgFormat = "JPG"

  1517.         elif newPath.lower().endswith((".png",)):

  1518.             imgFormat = "PNG"

  1519.         else:

  1520.             # File-dialog may not auto-add the extension

  1521.             imgFormat = "PNG"

  1522.             newPath  += ".png"

  1523. 

  1524.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1525.         painter = QPainter(self.fExportImage)

  1526.         painter.save()

  1527.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1528.         painter.setRenderHint(QPainter.TextAntialiasing)

  1529.         self.scene.render(painter)

  1530.         self.fExportImage.save(newPath, imgFormat, 100)

  1531.         painter.restore()

  1532. 

  1533.     # --------------------------------------------------------------------------------------------------------

  1534.     # Canvas (canvas callbacks)

  1535. 

  1536.     @pyqtSlot(int, int, QPointF)

  1537.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1538.         self.updateMiniCanvasLater()

  1539. 

  1540.     @pyqtSlot()

  1541.     def slot_canvasSelectionChanged(self):

  1542.         self.updateMiniCanvasLater()

  1543. 

  1544.     @pyqtSlot(float)

  1545.     def slot_canvasScaleChanged(self, scale):

  1546.         self.ui.miniCanvasPreview.setViewScale(scale)

  1547. 

  1548.     @pyqtSlot(list)

  1549.     def slot_canvasPluginSelected(self, pluginList):

  1550.         self.ui.keyboard.allNotesOff(False)

  1551.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1552.         self.fSelectedPlugins = pluginList

  1553. 

  1554.     # --------------------------------------------------------------------------------------------------------

  1555.     # Canvas (host callbacks)

  1556. 

  1557.     @pyqtSlot(int, int, int, str)

  1558.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1559.         pcSplit = patchcanvas.SPLIT_UNDEF

  1560.         pcIcon  = patchcanvas.ICON_APPLICATION

  1561. 

  1562.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1563.             pcIcon = patchcanvas.ICON_PLUGIN

  1564.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1565.             pcIcon = patchcanvas.ICON_HARDWARE

  1566.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1567.             pass

  1568.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1569.             pcIcon = patchcanvas.ICON_DISTRHO

  1570.         elif clientIcon == PATCHBAY_ICON_FILE:

  1571.             pcIcon = patchcanvas.ICON_FILE

  1572. 

  1573.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1574. 

  1575.         self.updateMiniCanvasLater()

  1576. 

  1577.         if pluginId < 0:

  1578.             return

  1579.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1580.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1581.             return

  1582. 

  1583.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1584.             hasCustomUI = False

  1585.             hasInlineDisplay = False

  1586.         else:

  1587.             hints = self.host.get_plugin_info(pluginId)['hints']

  1588.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1589.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1590. 

  1591.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1592. 

  1593.     @pyqtSlot(int)

  1594.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1595.         patchcanvas.removeGroup(clientId)

  1596.         self.updateMiniCanvasLater()

  1597. 

  1598.     @pyqtSlot(int, str)

  1599.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1600.         patchcanvas.renameGroup(clientId, newClientName)

  1601.         self.updateMiniCanvasLater()

  1602. 

  1603.     @pyqtSlot(int, int, int)

  1604.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1605.         pcIcon = patchcanvas.ICON_APPLICATION

  1606. 

  1607.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1608.             pcIcon = patchcanvas.ICON_PLUGIN

  1609.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1610.             pcIcon = patchcanvas.ICON_HARDWARE

  1611.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1612.             pass

  1613.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1614.             pcIcon = patchcanvas.ICON_DISTRHO

  1615.         elif clientIcon == PATCHBAY_ICON_FILE:

  1616.             pcIcon = patchcanvas.ICON_FILE

  1617. 

  1618.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1619.         self.updateMiniCanvasLater()

  1620. 

  1621.         if pluginId < 0:

  1622.             return

  1623.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1624.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1625.             return

  1626. 

  1627.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1628.             hasCustomUI = False

  1629.             hasInlineDisplay = False

  1630.         else:

  1631.             hints = self.host.get_plugin_info(pluginId)['hints']

  1632.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1633.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1634. 

  1635.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1636. 

  1637.     @pyqtSlot(int, int, int, int, str)

  1638.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1639.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1640.             portMode = patchcanvas.PORT_MODE_INPUT

  1641.         else:

  1642.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1643. 

  1644.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1645.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1646.             isAlternate = False

  1647.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1648.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1649.             isAlternate = True

  1650.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1651.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1652.             isAlternate = False

  1653.         else:

  1654.             portType    = patchcanvas.PORT_TYPE_NULL

  1655.             isAlternate = False

  1656. 

  1657.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1658.         self.updateMiniCanvasLater()

  1659. 

  1660.     @pyqtSlot(int, int)

  1661.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1662.         patchcanvas.removePort(groupId, portId)

  1663.         self.updateMiniCanvasLater()

  1664. 

  1665.     @pyqtSlot(int, int, int, int, str)

  1666.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1667.         patchcanvas.renamePort(groupId, portId, newPortName)

  1668.         self.updateMiniCanvasLater()

  1669. 

  1670.     @pyqtSlot(int, int, int, str)

  1671.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1672.         # TODO

  1673.         pass

  1674. 

  1675.     @pyqtSlot(int, int)

  1676.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1677.         # TODO

  1678.         pass

  1679. 

  1680.     @pyqtSlot(int, int, int, str)

  1681.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1682.         # TODO

  1683.         pass

  1684. 

  1685.     @pyqtSlot(int, int, int, int, int)

  1686.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1687.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1688.         self.updateMiniCanvasLater()

  1689. 

  1690.     @pyqtSlot(int, int, int)

  1691.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1692.         patchcanvas.disconnectPorts(connectionId)

  1693.         self.updateMiniCanvasLater()

  1694. 

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

  1696.     # Settings

  1697. 

  1698.     def saveSettings(self):

  1699.         settings = QSettings()

  1700. 

  1701.         settings.setValue("Geometry", self.saveGeometry())

  1702.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1703. 

  1704.         if not self.host.isControl:

  1705.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1706. 

  1707.         diskFolders = []

  1708. 

  1709.         for i in range(self.ui.cb_disk.count()):

  1710.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1711. 

  1712.         settings.setValue("DiskFolders", diskFolders)

  1713.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1714. 

  1715.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1716.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1717.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1718.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1719. 

  1720.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1721.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1722. 

  1723.         return settings

  1724. 

  1725.     def loadSettings(self, firstTime):

  1726.         settings = QSettings()

  1727. 

  1728.         if firstTime:

  1729.             self.restoreGeometry(settings.value("Geometry", b""))

  1730. 

  1731.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1732.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1733.             self.ui.toolBar.setEnabled(showToolbar)

  1734.             self.ui.toolBar.setVisible(showToolbar)

  1735. 

  1736.             #if settings.contains("SplitterState"):

  1737.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1738.             #else:

  1739.                 #self.ui.splitter.setSizes([210, 99999])

  1740. 

  1741.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1742.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1743.             self.slot_showSidePanel(showSidePanel)

  1744. 

  1745.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1746. 

  1747.             self.ui.cb_disk.setItemData(0, HOME)

  1748. 

  1749.             for i in range(len(diskFolders)):

  1750.                 if i == 0: continue

  1751.                 folder = diskFolders[i]

  1752.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1753. 

  1754.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1755.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1756. 

  1757.             showMeters = settings.value("ShowMeters", True, type=bool)

  1758.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1759.             self.ui.peak_in.setVisible(showMeters)

  1760.             self.ui.peak_out.setVisible(showMeters)

  1761. 

  1762.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1763.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1764.             self.ui.scrollArea.setVisible(showKeyboard)

  1765. 

  1766.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1767. 

  1768.             settingsDBf = QSettings("falkTX", "CarlaDatabase2")

  1769.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], type=list)

  1770. 

  1771.         # TODO - complete this

  1772. 

  1773.         self.fSavedSettings = {

  1774.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1775.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1776.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1777.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1778.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1779.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1780.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1781.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1782.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1783.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1784.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1785.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1786.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1787.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1788.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     type=bool),

  1789.             CARLA_KEY_CANVAS_INLINE_DISPLAYS:   settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS,   CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS,   type=bool),

  1790.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1791.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1792.         }

  1793. 

  1794.         settings2 = QSettings("falkTX", "Carla2")

  1795. 

  1796.         if self.host.experimental:

  1797.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1798.             self.ui.act_plugin_add_jack.setVisible(visible)

  1799.         else:

  1800.             self.ui.act_plugin_add_jack.setVisible(False)

  1801. 

  1802.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1803. 

  1804.         setEngineSettings(self.host)

  1805.         self.restartTimersIfNeeded()

  1806. 

  1807.         return settings

  1808. 

  1809.     # --------------------------------------------------------------------------------------------------------

  1810.     # Settings (helpers)

  1811. 

  1812.     def enableTransport(self, enabled):

  1813.         self.ui.group_transport_controls.setEnabled(enabled)

  1814.         self.ui.group_transport_settings.setEnabled(enabled)

  1815. 

  1816.     @pyqtSlot()

  1817.     def slot_restoreCanvasScrollbarValues(self):

  1818.         settings = QSettings()

  1819.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1820.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1821. 

  1822.     # --------------------------------------------------------------------------------------------------------

  1823.     # Settings (menu actions)

  1824. 

  1825.     @pyqtSlot(bool)

  1826.     def slot_showSidePanel(self, yesNo):

  1827.         self.ui.dockWidget.setEnabled(yesNo)

  1828.         self.ui.dockWidget.setVisible(yesNo)

  1829. 

  1830.     @pyqtSlot(bool)

  1831.     def slot_showToolbar(self, yesNo):

  1832.         self.ui.toolBar.setEnabled(yesNo)

  1833.         self.ui.toolBar.setVisible(yesNo)

  1834. 

  1835.     @pyqtSlot(bool)

  1836.     def slot_showCanvasMeters(self, yesNo):

  1837.         self.ui.peak_in.setVisible(yesNo)

  1838.         self.ui.peak_out.setVisible(yesNo)

  1839.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1840. 

  1841.     @pyqtSlot(bool)

  1842.     def slot_showCanvasKeyboard(self, yesNo):

  1843.         self.ui.scrollArea.setVisible(yesNo)

  1844.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1845. 

  1846.     @pyqtSlot()

  1847.     def slot_configureCarla(self):

  1848.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1849.         if not dialog.exec_():

  1850.             return

  1851. 

  1852.         self.loadSettings(False)

  1853. 

  1854.         patchcanvas.clear()

  1855. 

  1856.         self.setupCanvas()

  1857.         self.slot_miniCanvasCheckAll()

  1858. 

  1859.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1860.             pass

  1861.         elif self.host.is_engine_running():

  1862.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1863. 

  1864.     # --------------------------------------------------------------------------------------------------------

  1865.     # About (menu actions)

  1866. 

  1867.     @pyqtSlot()

  1868.     def slot_aboutCarla(self):

  1869.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1870. 

  1871.     @pyqtSlot()

  1872.     def slot_aboutJuce(self):

  1873.         JuceAboutW(self.fParentOrSelf).exec_()

  1874. 

  1875.     @pyqtSlot()

  1876.     def slot_aboutQt(self):

  1877.         QApplication.instance().aboutQt()

  1878. 

  1879.     # --------------------------------------------------------------------------------------------------------

  1880.     # Disk (menu actions)

  1881. 

  1882.     @pyqtSlot(int)

  1883.     def slot_diskFolderChanged(self, index):

  1884.         if index < 0:

  1885.             return

  1886.         elif index == 0:

  1887.             filename = HOME

  1888.             self.ui.b_disk_remove.setEnabled(False)

  1889.         else:

  1890.             filename = self.ui.cb_disk.itemData(index)

  1891.             self.ui.b_disk_remove.setEnabled(True)

  1892. 

  1893.         self.fDirModel.setRootPath(filename)

  1894.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1895. 

  1896.     @pyqtSlot()

  1897.     def slot_diskFolderAdd(self):

  1898.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1899. 

  1900.         if newPath:

  1901.             if newPath[-1] == os.sep:

  1902.                 newPath = newPath[:-1]

  1903.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1904.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1905.             self.ui.b_disk_remove.setEnabled(True)

  1906. 

  1907.     @pyqtSlot()

  1908.     def slot_diskFolderRemove(self):

  1909.         index = self.ui.cb_disk.currentIndex()

  1910. 

  1911.         if index <= 0:

  1912.             return

  1913. 

  1914.         self.ui.cb_disk.removeItem(index)

  1915. 

  1916.         if self.ui.cb_disk.currentIndex() == 0:

  1917.             self.ui.b_disk_remove.setEnabled(False)

  1918. 

  1919.     @pyqtSlot(QModelIndex)

  1920.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1921.         filename = self.fDirModel.filePath(modelIndex)

  1922. 

  1923.         if not self.ui.listWidget.isDragUrlValid(filename):

  1924.             return

  1925. 

  1926.         if not self.host.load_file(filename):

  1927.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1928.                              self.tr("Failed to load file"),

  1929.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1930. 

  1931.     # --------------------------------------------------------------------------------------------------------

  1932.     # Transport

  1933. 

  1934.     def refreshTransport(self, forced = False):

  1935.         if not self.ui.l_transport_time.isVisible():

  1936.             return

  1937.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1938.             return

  1939. 

  1940.         timeInfo = self.host.get_transport_info()

  1941.         playing  = timeInfo['playing']

  1942.         frame    = timeInfo['frame']

  1943.         bpm      = timeInfo['bpm']

  1944. 

  1945.         if playing != self.fLastTransportState or forced:

  1946.             if playing:

  1947.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1948.                 self.ui.b_transport_play.setChecked(True)

  1949.                 self.ui.b_transport_play.setIcon(icon)

  1950.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1951.             else:

  1952.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1953.                 self.ui.b_transport_play.setChecked(False)

  1954.                 self.ui.b_transport_play.setIcon(icon)

  1955.                 #self.ui.b_play.setText(self.tr("&Play"))

  1956. 

  1957.             self.fLastTransportState = playing

  1958. 

  1959.         if frame != self.fLastTransportFrame or forced:

  1960.             self.fLastTransportFrame = frame

  1961. 

  1962.             time = frame / self.fSampleRate

  1963.             secs =  time % 60

  1964.             mins = (time / 60) % 60

  1965.             hrs  = (time / 3600) % 60

  1966.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1967. 

  1968.             frame1 =  frame % 1000

  1969.             frame2 = (frame / 1000) % 1000

  1970.             frame3 = (frame / 1000000) % 1000

  1971.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1972. 

  1973.             bar  = timeInfo['bar']

  1974.             beat = timeInfo['beat']

  1975.             tick = timeInfo['tick']

  1976.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1977. 

  1978.         if bpm != self.fLastTransportBPM or forced:

  1979.             self.fLastTransportBPM = bpm

  1980. 

  1981.             if bpm > 0.0:

  1982.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1983.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1984.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1985.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1986.             else:

  1987.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1988. 

  1989.     # --------------------------------------------------------------------------------------------------------

  1990.     # Transport (menu actions)

  1991. 

  1992.     @pyqtSlot(bool)

  1993.     def slot_transportPlayPause(self, toggled):

  1994.         if self.host.isPlugin or not self.host.is_engine_running():

  1995.             return

  1996. 

  1997.         if toggled:

  1998.             self.host.transport_play()

  1999.         else:

  2000.             self.host.transport_pause()

  2001. 

  2002.         self.refreshTransport()

  2003. 

  2004.     @pyqtSlot()

  2005.     def slot_transportStop(self):

  2006.         if self.host.isPlugin or not self.host.is_engine_running():

  2007.             return

  2008. 

  2009.         self.host.transport_pause()

  2010.         self.host.transport_relocate(0)

  2011. 

  2012.         self.refreshTransport()

  2013. 

  2014.     @pyqtSlot()

  2015.     def slot_transportBackwards(self):

  2016.         if self.host.isPlugin or not self.host.is_engine_running():

  2017.             return

  2018. 

  2019.         newFrame = self.host.get_current_transport_frame() - 100000

  2020. 

  2021.         if newFrame < 0:

  2022.             newFrame = 0

  2023. 

  2024.         self.host.transport_relocate(newFrame)

  2025. 

  2026.     @pyqtSlot(float)

  2027.     def slot_transportBpmChanged(self, newValue):

  2028.         self.host.transport_bpm(newValue)

  2029. 

  2030.     @pyqtSlot()

  2031.     def slot_transportForwards(self):

  2032.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2033.             return

  2034. 

  2035.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2036.         self.host.transport_relocate(newFrame)

  2037. 

  2038.     @pyqtSlot(bool)

  2039.     def slot_transportJackEnabled(self, clicked):

  2040.         if not self.host.is_engine_running():

  2041.             return

  2042.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2043.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2044.                                     self.host.transportMode,

  2045.                                     self.host.transportExtra)

  2046. 

  2047.     @pyqtSlot(bool)

  2048.     def slot_transportLinkEnabled(self, clicked):

  2049.         if not self.host.is_engine_running():

  2050.             return

  2051.         extra = ":link:" if clicked else ""

  2052.         self.host.transportExtra = extra

  2053.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2054.                                     self.host.transportMode,

  2055.                                     self.host.transportExtra)

  2056. 

  2057.     # --------------------------------------------------------------------------------------------------------

  2058.     # Other

  2059. 

  2060.     @pyqtSlot(bool)

  2061.     def slot_xrunClear(self):

  2062.         self.host.clear_engine_xruns()

  2063. 

  2064.     # --------------------------------------------------------------------------------------------------------

  2065.     # Canvas scrollbars

  2066. 

  2067.     @pyqtSlot(int)

  2068.     def slot_horizontalScrollBarChanged(self, value):

  2069.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2070.         if maximum == 0:

  2071.             xp = 0

  2072.         else:

  2073.             xp = float(value) / maximum

  2074.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2075.         self.updateCanvasInitialPos()

  2076. 

  2077.     @pyqtSlot(int)

  2078.     def slot_verticalScrollBarChanged(self, value):

  2079.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2080.         if maximum == 0:

  2081.             yp = 0

  2082.         else:

  2083.             yp = float(value) / maximum

  2084.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2085.         self.updateCanvasInitialPos()

  2086. 

  2087.     # --------------------------------------------------------------------------------------------------------

  2088.     # Canvas keyboard

  2089. 

  2090.     @pyqtSlot(int)

  2091.     def slot_noteOn(self, note):

  2092.         for pluginId in self.fSelectedPlugins:

  2093.             self.host.send_midi_note(pluginId, 0, note, 100)

  2094. 

  2095.             pedit = self.getPluginEditDialog(pluginId)

  2096.             pedit.noteOn(0, note, 100)

  2097. 

  2098.     @pyqtSlot(int)

  2099.     def slot_noteOff(self, note):

  2100.         for pluginId in self.fSelectedPlugins:

  2101.             self.host.send_midi_note(pluginId, 0, note, 0)

  2102. 

  2103.             pedit = self.getPluginEditDialog(pluginId)

  2104.             pedit.noteOff(0, note)

  2105. 

  2106.     # --------------------------------------------------------------------------------------------------------

  2107.     # Canvas keyboard (host callbacks)

  2108. 

  2109.     @pyqtSlot(int, int, int, int)

  2110.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2111.         if pluginId in self.fSelectedPlugins:

  2112.             self.ui.keyboard.sendNoteOn(note, False)

  2113. 

  2114.     @pyqtSlot(int, int, int)

  2115.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2116.         if pluginId in self.fSelectedPlugins:

  2117.             self.ui.keyboard.sendNoteOff(note, False)

  2118. 

  2119.     # --------------------------------------------------------------------------------------------------------

  2120. 

  2121.     @pyqtSlot(int)

  2122.     def slot_handleUpdateCallback(self, pluginId):

  2123.         pitem = self.getPluginItem(pluginId)

  2124. 

  2125.         if pitem is None:

  2126.             return

  2127. 

  2128.         wasCompacted = pitem.isCompacted()

  2129.         isCompacted  = wasCompacted

  2130. 

  2131.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2132.         if not check:

  2133.             return

  2134.         isCompacted = bool(check == "true")

  2135. 

  2136.         if wasCompacted == isCompacted:

  2137.             return

  2138. 

  2139.         pitem.recreateWidget(True)

  2140. 

  2141.     # --------------------------------------------------------------------------------------------------------

  2142.     # MiniCanvas stuff

  2143. 

  2144.     @pyqtSlot()

  2145.     def slot_miniCanvasCheckAll(self):

  2146.         self.slot_miniCanvasCheckSize()

  2147.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2148.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2149. 

  2150.     @pyqtSlot()

  2151.     def slot_miniCanvasCheckSize(self):

  2152.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2153.             return

  2154. 

  2155.         currentIndex = self.ui.tabWidget.currentIndex()

  2156. 

  2157.         if currentIndex == 1:

  2158.             width  = self.ui.graphicsView.width()

  2159.             height = self.ui.graphicsView.height()

  2160.         else:

  2161.             self.ui.tabWidget.blockSignals(True)

  2162.             self.ui.tabWidget.setCurrentIndex(1)

  2163.             width  = self.ui.graphicsView.width()

  2164.             height = self.ui.graphicsView.height()

  2165.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2166.             self.ui.tabWidget.blockSignals(False)

  2167. 

  2168.         self.scene.updateLimits()

  2169. 

  2170.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2171. 

  2172.     @pyqtSlot(float, float)

  2173.     def slot_miniCanvasMoved(self, xp, yp):

  2174.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2175.         vsb = self.ui.graphicsView.verticalScrollBar()

  2176.         hsb.setValue(xp * hsb.maximum())

  2177.         vsb.setValue(yp * vsb.maximum())

  2178.         self.updateCanvasInitialPos()

  2179. 

  2180.     # --------------------------------------------------------------------------------------------------------

  2181.     # Timers

  2182. 

  2183.     def startTimers(self):

  2184.         if self.fIdleTimerFast == 0:

  2185.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2186. 

  2187.         if self.fIdleTimerSlow == 0:

  2188.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2189. 

  2190.     def restartTimersIfNeeded(self):

  2191.         if self.fIdleTimerFast != 0:

  2192.             self.killTimer(self.fIdleTimerFast)

  2193.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2194. 

  2195.         if self.fIdleTimerSlow != 0:

  2196.             self.killTimer(self.fIdleTimerSlow)

  2197.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2198. 

  2199.     def killTimers(self):

  2200.         if self.fIdleTimerFast != 0:

  2201.             self.killTimer(self.fIdleTimerFast)

  2202.             self.fIdleTimerFast = 0

  2203. 

  2204.         if self.fIdleTimerSlow != 0:

  2205.             self.killTimer(self.fIdleTimerSlow)

  2206.             self.fIdleTimerSlow = 0

  2207. 

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

  2209.     # Misc

  2210. 

  2211.     @pyqtSlot(int)

  2212.     def slot_tabChanged(self, index):

  2213.         if index != 1:

  2214.             return

  2215. 

  2216.         self.ui.graphicsView.setFocus()

  2217. 

  2218.     @pyqtSlot(int)

  2219.     def slot_handleReloadAllCallback(self, pluginId):

  2220.         if pluginId >= self.fPluginCount:

  2221.             return

  2222. 

  2223.         pitem = self.fPluginList[pluginId]

  2224.         if pitem is None:

  2225.             return

  2226. 

  2227.         pitem.recreateWidget()

  2228. 

  2229.     # --------------------------------------------------------------------------------------------------------

  2230. 

  2231.     @pyqtSlot(int, int, str)

  2232.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2233.         if opcode == NSM_CALLBACK_INIT:

  2234.             return

  2235. 

  2236.         # Error

  2237.         elif opcode == NSM_CALLBACK_ERROR:

  2238.             pass

  2239. 

  2240.         # Reply

  2241.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2242.             self.fFirstEngineInit    = False

  2243.             self.fSessionManagerName = valueStr

  2244.             self.setProperWindowTitle()

  2245. 

  2246.         # Open

  2247.         elif opcode == NSM_CALLBACK_OPEN:

  2248.             self.fClientName      = os.path.basename(valueStr)

  2249.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2250.             self.setProperWindowTitle()

  2251. 

  2252.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2253.             self.slot_engineStop(True)

  2254.             return

  2255. 

  2256.         # Save

  2257.         elif opcode == NSM_CALLBACK_SAVE:

  2258.             self.saveProjectNow()

  2259. 

  2260.         # Session is Loaded

  2261.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2262.             pass

  2263. 

  2264.         # Show Optional Gui

  2265.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2266.             self.show()

  2267. 

  2268.         # Hide Optional Gui

  2269.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2270.             self.hide()

  2271. 

  2272.         self.host.nsm_ready(opcode)

  2273. 

  2274.     # --------------------------------------------------------------------------------------------------------

  2275. 

  2276.     def fixLogText(self, text):

  2277.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2278. 

  2279.     @pyqtSlot(int, int, int, int, float, str)

  2280.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2281.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2282. 

  2283.     @pyqtSlot(str)

  2284.     def slot_handleInfoCallback(self, info):

  2285.         QMessageBox.information(self, "Information", info)

  2286. 

  2287.     @pyqtSlot(str)

  2288.     def slot_handleErrorCallback(self, error):

  2289.         QMessageBox.critical(self, "Error", error)

  2290. 

  2291.     @pyqtSlot()

  2292.     def slot_handleQuitCallback(self):

  2293.         self.fIsProjectLoading = False

  2294.         self.killTimers()

  2295.         self.removeAllPlugins()

  2296.         self.projectLoadingFinished()

  2297. 

  2298.     @pyqtSlot(int)

  2299.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2300.         # FIXME

  2301.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2302.             patchcanvas.redrawPluginGroup(pluginId)

  2303. 

  2304.     # --------------------------------------------------------------------------------------------------------

  2305. 

  2306.     @pyqtSlot()

  2307.     def slot_handleSIGUSR1(self):

  2308.         print("Got SIGUSR1 -> Saving project now")

  2309.         self.slot_fileSave()

  2310. 

  2311.     @pyqtSlot()

  2312.     def slot_handleSIGTERM(self):

  2313.         print("Got SIGTERM -> Closing now")

  2314.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2315.         self.slot_engineStop(True)

  2316. 

  2317.     # --------------------------------------------------------------------------------------------------------

  2318.     # Internal stuff

  2319. 

  2320.     def getExtraPtr(self, plugin):

  2321.         ptype = plugin['type']

  2322. 

  2323.         if ptype == PLUGIN_LADSPA:

  2324.             uniqueId = plugin['uniqueId']

  2325. 

  2326.             self.maybeLoadRDFs()

  2327. 

  2328.             for rdfItem in self.fLadspaRdfList:

  2329.                 if rdfItem.UniqueID == uniqueId:

  2330.                     return pointer(rdfItem)

  2331. 

  2332.         elif ptype == PLUGIN_SF2:

  2333.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2334.                 return self._true

  2335. 

  2336.         return None

  2337. 

  2338.     def maybeLoadRDFs(self):

  2339.         if not self.fLadspaRdfNeedsUpdate:

  2340.             return

  2341. 

  2342.         self.fLadspaRdfNeedsUpdate = False

  2343.         self.fLadspaRdfList = []

  2344. 

  2345.         if not haveLRDF:

  2346.             return

  2347. 

  2348.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2349.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2350. 

  2351.         if os.path.exists(frLadspaFile):

  2352.             frLadspa = open(frLadspaFile, 'r')

  2353. 

  2354.             try:

  2355.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2356.             except:

  2357.                 pass

  2358. 

  2359.             frLadspa.close()

  2360. 

  2361.     # --------------------------------------------------------------------------------------------------------

  2362. 

  2363.     def getPluginCount(self):

  2364.         return self.fPluginCount

  2365. 

  2366.     def getPluginItem(self, pluginId):

  2367.         if pluginId >= self.fPluginCount:

  2368.             return None

  2369. 

  2370.         pitem = self.fPluginList[pluginId]

  2371.         if pitem is None:

  2372.             return None

  2373.         #if False:

  2374.             #return CarlaRackItem(self, 0, False)

  2375. 

  2376.         return pitem

  2377. 

  2378.     def getPluginEditDialog(self, pluginId):

  2379.         if pluginId >= self.fPluginCount:

  2380.             return None

  2381. 

  2382.         pitem = self.fPluginList[pluginId]

  2383.         if pitem is None:

  2384.             return None

  2385.         if False:

  2386.             return PluginEdit(self, self.host, 0)

  2387. 

  2388.         return pitem.getEditDialog()

  2389. 

  2390.     def getPluginSlotWidget(self, pluginId):

  2391.         if pluginId >= self.fPluginCount:

  2392.             return None

  2393. 

  2394.         pitem = self.fPluginList[pluginId]

  2395.         if pitem is None:

  2396.             return None

  2397.         #if False:

  2398.             #return AbstractPluginSlot()

  2399. 

  2400.         return pitem.getWidget()

  2401. 

  2402.     # --------------------------------------------------------------------------------------------------------

  2403. 

  2404.     def waitForPendingEvents(self):

  2405.         pass

  2406. 

  2407.     # --------------------------------------------------------------------------------------------------------

  2408.     # show/hide event

  2409. 

  2410.     def showEvent(self, event):

  2411.         self.getAndRefreshRuntimeInfo()

  2412.         self.refreshTransport(True)

  2413.         QMainWindow.showEvent(self, event)

  2414. 

  2415.         if QT_VERSION >= 0x50600:

  2416.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2417. 

  2418.         # set our gui as parent for all plugins UIs

  2419.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2420.             if MACOS:

  2421.                 nsViewPtr = int(self.winId())

  2422.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2423.             else:

  2424.                 winIdStr = "%x" % int(self.winId())

  2425.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2426. 

  2427.     def hideEvent(self, event):

  2428.         # disable parent

  2429.         if not (self.host.isControl or self.host.isPlugin):

  2430.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2431. 

  2432.         QMainWindow.hideEvent(self, event)

  2433. 

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

  2435.     # resize event

  2436. 

  2437.     def resizeEvent(self, event):

  2438.         QMainWindow.resizeEvent(self, event)

  2439. 

  2440.         if self.fWithCanvas:

  2441.             self.slot_miniCanvasCheckSize()

  2442. 

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

  2444.     # timer event

  2445. 

  2446.     def refreshRuntimeInfo(self, load, xruns):

  2447.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2448.         txt2 = "" if (xruns == 1) else "s"

  2449.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2450.         self.ui.pb_dsp_load.setValue(int(load))

  2451. 

  2452.     def getAndRefreshRuntimeInfo(self):

  2453.         if not self.ui.pb_dsp_load.isVisible():

  2454.             return

  2455.         if not self.host.is_engine_running():

  2456.             return

  2457.         info = self.host.get_runtime_engine_info()

  2458.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2459. 

  2460.     def idleFast(self):

  2461.         self.host.engine_idle()

  2462.         self.refreshTransport()

  2463. 

  2464.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2465.             return

  2466. 

  2467.         for pitem in self.fPluginList:

  2468.             if pitem is None:

  2469.                 break

  2470. 

  2471.             pitem.getWidget().idleFast()

  2472. 

  2473.         for pluginId in self.fSelectedPlugins:

  2474.             self.fPeaksCleared = False

  2475.             if self.ui.peak_in.isVisible():

  2476.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2477.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2478.             if self.ui.peak_out.isVisible():

  2479.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2480.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2481.             return

  2482. 

  2483.         if self.fPeaksCleared:

  2484.             return

  2485. 

  2486.         self.fPeaksCleared = True

  2487.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2488.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2489.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2490.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2491. 

  2492.     def idleSlow(self):

  2493.         self.getAndRefreshRuntimeInfo()

  2494. 

  2495.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2496.             return

  2497. 

  2498.         for pitem in self.fPluginList:

  2499.             if pitem is None:

  2500.                 break

  2501. 

  2502.             pitem.getWidget().idleSlow()

  2503. 

  2504.     def timerEvent(self, event):

  2505.         if event.timerId() == self.fIdleTimerFast:

  2506.             self.idleFast()

  2507. 

  2508.         elif event.timerId() == self.fIdleTimerSlow:

  2509.             self.idleSlow()

  2510. 

  2511.         QMainWindow.timerEvent(self, event)

  2512. 

  2513.     # --------------------------------------------------------------------------------------------------------

  2514.     # color/style change event

  2515. 

  2516.     def changeEvent(self, event):

  2517.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2518.             self.updateStyle()

  2519.         QWidget.changeEvent(self, event)

  2520. 

  2521.     def updateStyle(self):

  2522.         # Rack padding images setup

  2523.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2524.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2525. 

  2526.         min_value = 0.07

  2527. 

  2528.         if PYQT_VERSION >= 0x50600:

  2529.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2530.         else:

  2531.             value_fix = 1.5

  2532. 

  2533.         bg_color = self.ui.rack.palette().window().color()

  2534.         bg_value = 1.0 - bg_color.blackF()

  2535.         if bg_value != 0.0 and bg_value < min_value:

  2536.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2537.         else:

  2538.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2539. 

  2540.         painter = QPainter()

  2541.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2542. 

  2543.         painter.begin(rack_imgL)

  2544.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2545.         painter.setBrush(pad_color)

  2546.         painter.drawRect(fillRect)

  2547.         painter.end()

  2548.         rack_pixmapL = QPixmap(rack_imgL)

  2549.         self.imgL_palette = QPalette()

  2550.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2551.         self.ui.pad_left.setPalette(self.imgL_palette)

  2552.         self.ui.pad_left.setAutoFillBackground(True)

  2553. 

  2554.         painter.begin(rack_imgR)

  2555.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2556.         painter.setBrush(pad_color)

  2557.         painter.drawRect(fillRect)

  2558.         painter.end()

  2559.         rack_pixmapR = QPixmap(rack_imgR)

  2560.         self.imgR_palette = QPalette()

  2561.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2562.         self.ui.pad_right.setPalette(self.imgR_palette)

  2563.         self.ui.pad_right.setAutoFillBackground(True)

  2564. 

  2565.     # --------------------------------------------------------------------------------------------------------

  2566.     # paint event

  2567. 

  2568.     #def paintEvent(self, event):

  2569.         #QMainWindow.paintEvent(self, event)

  2570. 

  2571.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2572.             #return

  2573. 

  2574.         #painter = QPainter(self)

  2575.         #painter.setBrush(QColor(36, 36, 36))

  2576.         #painter.setPen(QColor(62, 62, 62))

  2577.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2578. 

  2579.     # --------------------------------------------------------------------------------------------------------

  2580.     # close event

  2581. 

  2582.     def shouldIgnoreClose(self):

  2583.         if self.host.isControl or self.host.isPlugin:

  2584.             return False

  2585.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2586.             return False

  2587.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2588.             return QMessageBox.question(self, self.tr("Quit"),

  2589.                                               self.tr("Are you sure you want to quit Carla?"),

  2590.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2591.         return False

  2592. 

  2593.     def closeEvent(self, event):

  2594.         if self.shouldIgnoreClose():

  2595.             event.ignore()

  2596.             return

  2597. 

  2598.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2599.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2600.             self.fMacClosingHelper = False

  2601.             event.ignore()

  2602. 

  2603.             for i in reversed(range(self.fPluginCount)):

  2604.                 self.host.show_custom_ui(i, False)

  2605. 

  2606.             QTimer.singleShot(100, self.close)

  2607.             return

  2608. 

  2609.         self.killTimers()

  2610.         self.saveSettings()

  2611. 

  2612.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2613.             if not self.slot_engineStop(True):

  2614.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2615.                 event.ignore()

  2616.                 return

  2617. 

  2618.         QMainWindow.closeEvent(self, event)

  2619. 

  2620. # ------------------------------------------------------------------------------------------------

  2621. # Canvas callback

  2622. 

  2623. def canvasCallback(action, value1, value2, valueStr):

  2624.     host = gCarla.gui.host

  2625. 

  2626.     if action == patchcanvas.ACTION_GROUP_INFO:

  2627.         pass

  2628. 

  2629.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2630.         pass

  2631. 

  2632.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2633.         groupId = value1

  2634.         patchcanvas.splitGroup(groupId)

  2635.         gCarla.gui.updateMiniCanvasLater()

  2636. 

  2637.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2638.         groupId = value1

  2639.         patchcanvas.joinGroup(groupId)

  2640.         gCarla.gui.updateMiniCanvasLater()

  2641. 

  2642.     elif action == patchcanvas.ACTION_PORT_INFO:

  2643.         pass

  2644. 

  2645.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2646.         pass

  2647. 

  2648.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2649.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2650. 

  2651.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2652.             print("Connection failed:", host.get_last_error())

  2653. 

  2654.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2655.         connectionId = value1

  2656. 

  2657.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2658.             print("Disconnect failed:", host.get_last_error())

  2659. 

  2660.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2661.         pluginId = value1

  2662. 

  2663.         if not host.clone_plugin(pluginId):

  2664.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2665.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2666. 

  2667.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2668.         pluginId = value1

  2669.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2670. 

  2671.         if pwidget is not None:

  2672.             pwidget.showEditDialog()

  2673. 

  2674.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2675.         pluginId = value1

  2676.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2677. 

  2678.         if pwidget is not None:

  2679.             pwidget.showRenameDialog()

  2680. 

  2681.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2682.         pluginId = value1

  2683.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2684. 

  2685.         if pwidget is not None:

  2686.             pwidget.showReplaceDialog()

  2687. 

  2688.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2689.         pluginId = value1

  2690. 

  2691.         if not host.remove_plugin(pluginId):

  2692.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2693.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2694. 

  2695.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2696.         pluginId = value1

  2697.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2698. 

  2699.         if pwidget is not None:

  2700.             pwidget.showCustomUI()

  2701. 

  2702.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2703.         gCarla.gui.showPluginActionsMenu()

  2704. 

  2705.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2706.         # FIXME

  2707.         if gCarla.gui.fPluginCount == 0: return

  2708.         pluginId = value1

  2709.         width, height = [int(v) for v in valueStr.split(":")]

  2710.         return host.render_inline_display(pluginId, width, height)

  2711. 

  2712. # ------------------------------------------------------------------------------------------------------------

  2713. # Engine callback

  2714. 

  2715. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2716.     # kdevelop likes this :)

  2717.     if False: host = CarlaHostNull()

  2718. 

  2719.     valueStr = charPtrToString(valueStr)

  2720. 

  2721.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2722.         host.processMode   = value1

  2723.         host.transportMode = value2

  2724.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2725.         host.processMode   = value1

  2726.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2727.         host.transportMode  = value1

  2728.         host.transportExtra = valueStr

  2729. 

  2730.     if action == ENGINE_CALLBACK_DEBUG:

  2731.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2732.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2733.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2734.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2735.         host.PluginRemovedCallback.emit(pluginId)

  2736.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2737.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2738.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2739.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2740.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2741.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2742.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2743.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2744.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2745.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2746.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2747.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2748.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2749.         host.ProgramChangedCallback.emit(pluginId, value1)

  2750.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2751.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2752.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2753.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2754.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2755.         host.UiStateChangedCallback.emit(pluginId, value1)

  2756.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2757.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2758.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2759.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2760.     elif action == ENGINE_CALLBACK_UPDATE:

  2761.         host.UpdateCallback.emit(pluginId)

  2762.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2763.         host.ReloadInfoCallback.emit(pluginId)

  2764.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2765.         host.ReloadParametersCallback.emit(pluginId)

  2766.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2767.         host.ReloadProgramsCallback.emit(pluginId)

  2768.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2769.         host.ReloadAllCallback.emit(pluginId)

  2770.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2771.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2772.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2773.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2774.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2775.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2776.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2777.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2778.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2779.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2780.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2781.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2782.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2783.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2784.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2785.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2786.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2787.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2788.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2789.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2790.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2791.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2792.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2793.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2794.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2795.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2796.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2797.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2798.         host.EngineStoppedCallback.emit()

  2799.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2800.         host.ProcessModeChangedCallback.emit(value1)

  2801.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2802.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2803.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2804.         host.BufferSizeChangedCallback.emit(value1)

  2805.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2806.         host.SampleRateChangedCallback.emit(valuef)

  2807.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2808.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2809.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2810.         host.ProjectLoadFinishedCallback.emit()

  2811.     elif action == ENGINE_CALLBACK_NSM:

  2812.         host.NSMCallback.emit(value1, value2, valueStr)

  2813.     elif action == ENGINE_CALLBACK_IDLE:

  2814.         QApplication.processEvents()

  2815.     elif action == ENGINE_CALLBACK_INFO:

  2816.         host.InfoCallback.emit(valueStr)

  2817.     elif action == ENGINE_CALLBACK_ERROR:

  2818.         host.ErrorCallback.emit(valueStr)

  2819.     elif action == ENGINE_CALLBACK_QUIT:

  2820.         host.QuitCallback.emit()

  2821.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2822.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2823.     else:

  2824.         print("unhandled action", action)

  2825. 

  2826. # ------------------------------------------------------------------------------------------------------------

  2827. # File callback

  2828. 

  2829. def fileCallback(ptr, action, isDir, title, filter):

  2830.     title  = charPtrToString(title)

  2831.     filter = charPtrToString(filter)

  2832. 

  2833.     if action == FILE_CALLBACK_OPEN:

  2834.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2835.     elif action == FILE_CALLBACK_SAVE:

  2836.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2837.     else:

  2838.         ret, ok = ("", "")

  2839. 

  2840.     # FIXME use ok value, test if it works as expected

  2841.     if not ret:

  2842.         return None

  2843. 

  2844.     # FIXME

  2845.     global fileRet

  2846.     fileRet = c_char_p(ret.encode("utf-8"))

  2847.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2848.     return retval.contents.value

  2849. 

  2850. # ------------------------------------------------------------------------------------------------------------

  2851. # Init host

  2852. 

  2853. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2854.     pathBinaries, pathResources = getPaths(libPrefix)

  2855. 

  2856.     # --------------------------------------------------------------------------------------------------------

  2857.     # Check if we should open main lib as local or global

  2858. 

  2859.     settings = QSettings("falkTX", "Carla2")

  2860. 

  2861.     try:

  2862.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2863.     except:

  2864.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2865. 

  2866.     # --------------------------------------------------------------------------------------------------------

  2867.     # Fail if binary dir is not found

  2868. 

  2869.     if not os.path.exists(pathBinaries):

  2870.         if failError:

  2871.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2872.             sys.exit(1)

  2873.         return

  2874. 

  2875.     # --------------------------------------------------------------------------------------------------------

  2876.     # Set Carla library name

  2877. 

  2878.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2879.     libname   = os.path.join(pathBinaries, libname)

  2880.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2881. 

  2882.     # --------------------------------------------------------------------------------------------------------

  2883.     # Print info

  2884. 

  2885.     print("Carla %s started, status:" % VERSION)

  2886.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2887.     print("  Qt version:     %s" % QT_VERSION_STR)

  2888.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2889.     print("  Binary dir:     %s" % pathBinaries)

  2890.     print("  Resources dir:  %s" % pathResources)

  2891. 

  2892.     # --------------------------------------------------------------------------------------------------------

  2893.     # Init host

  2894. 

  2895.     if failError:

  2896.         # no try

  2897.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2898.     else:

  2899.         try:

  2900.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2901.         except:

  2902.             host = CarlaHostQtNull()

  2903. 

  2904.     host.isControl = isControl

  2905.     host.isPlugin  = isPlugin

  2906. 

  2907.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2908.     host.set_file_callback(fileCallback)

  2909. 

  2910.     # If it's a plugin the paths are already set

  2911.     if not isPlugin:

  2912.         host.pathBinaries  = pathBinaries

  2913.         host.pathResources = pathResources

  2914.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2915.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2916. 

  2917.         if not isControl:

  2918.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2919. 

  2920.     # --------------------------------------------------------------------------------------------------------

  2921.     # Init utils

  2922. 

  2923.     gCarla.utils = CarlaUtils(utilsname)

  2924.     gCarla.utils.set_process_name(os.path.basename(initName))

  2925. 

  2926.     try:

  2927.         sys.stdout.flush()

  2928.     except:

  2929.         pass

  2930. 

  2931.     sys.stdout = CarlaPrint(False)

  2932.     sys.stderr = CarlaPrint(True)

  2933.     sys.excepthook = sys_excepthook

  2934. 

  2935.     # --------------------------------------------------------------------------------------------------------

  2936.     # Done

  2937. 

  2938.     return host

  2939. 

  2940. # ------------------------------------------------------------------------------------------------------------

  2941. # Load host settings

  2942. 

  2943. def loadHostSettings(host):

  2944.     # kdevelop likes this :)

  2945.     if False: host = CarlaHostNull()

  2946. 

  2947.     settings = QSettings("falkTX", "Carla2")

  2948. 

  2949.     try:

  2950.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2951.     except:

  2952.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2953. 

  2954.     try:

  2955.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2956.     except:

  2957.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2958. 

  2959.     try:

  2960.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2961.     except:

  2962.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2963. 

  2964.     try:

  2965.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2966.     except:

  2967.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2968. 

  2969.     try:

  2970.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2971.     except:

  2972.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2973. 

  2974.     try:

  2975.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2976.     except:

  2977.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2978. 

  2979.     try:

  2980.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2981.     except:

  2982.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2983. 

  2984.     try:

  2985.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2986.     except:

  2987.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2988. 

  2989.     try:

  2990.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2991.     except:

  2992.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2993. 

  2994.     try:

  2995.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2996.     except:

  2997.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2998. 

  2999.     try:

  3000.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  3001.     except:

  3002.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  3003. 

  3004.     try:

  3005.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  3006.     except:

  3007.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  3008. 

  3009.     try:

  3010.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  3011.     except:

  3012.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  3013. 

  3014.     if host.isPlugin:

  3015.         return

  3016. 

  3017.     try:

  3018.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  3019.     except:

  3020.         host.transportExtra = ""

  3021. 

  3022.     # enums

  3023.     if host.audioDriverForced is None:

  3024.         try:

  3025.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  3026.         except:

  3027.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  3028. 

  3029.     if not host.processModeForced:

  3030.         try:

  3031.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  3032.         except:

  3033.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  3034. 

  3035.     host.nextProcessMode = host.processMode

  3036. 

  3037.     # --------------------------------------------------------------------------------------------------------

  3038.     # fix things if needed

  3039. 

  3040.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3041.         if LADISH_APP_NAME:

  3042.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3043.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3044. 

  3045.         else:

  3046.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3047. 

  3048.     if gCarla.nogui:

  3049.         host.showLogs = False

  3050. 

  3051.     # --------------------------------------------------------------------------------------------------------

  3052.     # run headless host now if nogui option enabled

  3053. 

  3054.     if gCarla.nogui:

  3055.         runHostWithoutUI(host)

  3056. 

  3057. # ------------------------------------------------------------------------------------------------------------

  3058. # Set host settings

  3059. 

  3060. def setHostSettings(host):

  3061.     # kdevelop likes this :)

  3062.     if False: host = CarlaHostNull()

  3063. 

  3064.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3065.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3066.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3067.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3068.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3069.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3070.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3071. 

  3072.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3073.         return

  3074. 

  3075.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3076.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3077.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3078. 

  3079. # ------------------------------------------------------------------------------------------------------------

  3080. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3081. 

  3082. def setEngineSettings(host):

  3083.     # kdevelop likes this :)

  3084.     if False: host = CarlaHostNull()

  3085. 

  3086.     # --------------------------------------------------------------------------------------------------------

  3087.     # do nothing if control

  3088. 

  3089.     if host.isControl:

  3090.         return "Control"

  3091. 

  3092.     # --------------------------------------------------------------------------------------------------------

  3093. 

  3094.     settings = QSettings("falkTX", "Carla2")

  3095. 

  3096.     # --------------------------------------------------------------------------------------------------------

  3097.     # main settings

  3098. 

  3099.     setHostSettings(host)

  3100. 

  3101.     # --------------------------------------------------------------------------------------------------------

  3102.     # plugin paths

  3103. 

  3104.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  3105.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  3106.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  3107.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  3108.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  3109.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  3110.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  3111. 

  3112.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3113.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3114.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3115.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3116.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3117.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3118.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3119. 

  3120.     # --------------------------------------------------------------------------------------------------------

  3121.     # don't continue if plugin

  3122. 

  3123.     if host.isPlugin:

  3124.         return "Plugin"

  3125. 

  3126.     # --------------------------------------------------------------------------------------------------------

  3127.     # osc settings

  3128. 

  3129.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3130. 

  3131.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3132.         portNumTCP = -1

  3133.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3134.         portNumTCP = 0

  3135.     else:

  3136.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3137. 

  3138.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3139.         portNumUDP = -1

  3140.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3141.         portNumUDP = 0

  3142.     else:

  3143.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3144. 

  3145.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3146.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3147.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3148. 

  3149.     # --------------------------------------------------------------------------------------------------------

  3150.     # wine settings

  3151. 

  3152.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3153.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3154.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3155.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3156.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3157.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3158. 

  3159.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3160.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3161.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3162.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3163.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3164.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3165. 

  3166.     # --------------------------------------------------------------------------------------------------------

  3167.     # driver and device settings

  3168. 

  3169.     # driver name

  3170.     if host.audioDriverForced is not None:

  3171.         audioDriver = host.audioDriverForced

  3172.     else:

  3173.         try:

  3174.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3175.         except:

  3176.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3177. 

  3178.     # driver options

  3179.     try:

  3180.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3181.     except:

  3182.         audioDevice = ""

  3183. 

  3184.     try:

  3185.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3186.     except:

  3187.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3188. 

  3189.     try:

  3190.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3191.     except:

  3192.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3193. 

  3194.     try:

  3195.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3196.     except:

  3197.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3198. 

  3199.     # Only setup audio things if engine is not running

  3200.     if not host.is_engine_running():

  3201.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3202. 

  3203.         if not audioDriver.startswith("JACK"):

  3204.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3205.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3206.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3207. 

  3208.     # --------------------------------------------------------------------------------------------------------

  3209.     # fix things if needed

  3210. 

  3211.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3212.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3213.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3214. 

  3215.     # --------------------------------------------------------------------------------------------------------

  3216.     # return selected driver name

  3217. 

  3218.     return audioDriver

  3219. 

  3220. # ------------------------------------------------------------------------------------------------------------

  3221. # Run Carla without showing UI

  3222. 

  3223. def runHostWithoutUI(host):

  3224.     # kdevelop likes this :)

  3225.     if False: host = CarlaHostNull()

  3226. 

  3227.     # --------------------------------------------------------------------------------------------------------

  3228.     # Some initial checks

  3229. 

  3230.     if not gCarla.nogui:

  3231.         return

  3232. 

  3233.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3234. 

  3235.     if not projectFile:

  3236.         print("Carla no-gui mode can only be used together with a project file.")

  3237.         sys.exit(1)

  3238. 

  3239.     # --------------------------------------------------------------------------------------------------------

  3240.     # Additional imports

  3241. 

  3242.     from time import sleep

  3243. 

  3244.     # --------------------------------------------------------------------------------------------------------

  3245.     # Init engine

  3246. 

  3247.     audioDriver = setEngineSettings(host)

  3248.     if not host.engine_init(audioDriver, "Carla"):

  3249.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3250.         sys.exit(1)

  3251. 

  3252.     if not host.load_project(projectFile):

  3253.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3254.         host.engine_close()

  3255.         sys.exit(1)

  3256. 

  3257.     # --------------------------------------------------------------------------------------------------------

  3258.     # Idle

  3259. 

  3260.     print("Carla ready!")

  3261. 

  3262.     while host.is_engine_running() and not gCarla.term:

  3263.         host.engine_idle()

  3264.         sleep(0.0333) # 30 Hz

  3265. 

  3266.     # --------------------------------------------------------------------------------------------------------

  3267.     # Stop

  3268. 

  3269.     host.engine_close()

  3270.     sys.exit(0)

  3271. 

  3272. # ------------------------------------------------------------------------------------------------------------