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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) 2011-2020 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.         # Internal stuff (logs)

  210. 

  211.         self.autoscrollOnNewLog = True

  212.         self.lastLogSliderPos = 0

  213. 

  214.         # ----------------------------------------------------------------------------------------------------

  215.         # Set up GUI (engine stopped)

  216. 

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

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

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

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

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

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

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

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

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

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

  227. 

  228.             if self.host.isControl:

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

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

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

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

  233.             else:

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

  235. 

  236.                 if not withCanvas:

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

  238. 

  239.         else:

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

  241. 

  242.             if WINDOWS:

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

  244. 

  245.         if self.host.isControl:

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

  247.         else:

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

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

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

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

  252. 

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

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

  255. 

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

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

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

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

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

  261. 

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

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

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

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

  266. 

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

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

  269. 

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

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

  272. 

  273.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  291.             self.ui.tw_miniCanvas.hide()

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

  293.             if WINDOWS:

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

  295. 

  296.         # ----------------------------------------------------------------------------------------------------

  297.         # Set up GUI (disk)

  298. 

  299.         exts = gCarla.utils.get_supported_file_extensions()

  300. 

  301.         self.fDirModel = QFileSystemModel(self)

  302.         self.fDirModel.setRootPath(HOME)

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

  304. 

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

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

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

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

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

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

  311. 

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

  313.         # Set up GUI (transport)

  314. 

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

  316.         minValueWidth = fontMetricsHorizontalAdvance(fontMetrics, "000|00|0000")

  317.         minLabelWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_frame.text())

  318. 

  319.         labelTimeWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_time.text())

  320.         labelBBTWidth  = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_bbt.text())

  321. 

  322.         if minLabelWidth < labelTimeWidth:

  323.             minLabelWidth = labelTimeWidth

  324.         if minLabelWidth < labelBBTWidth:

  325.             minLabelWidth = labelBBTWidth

  326. 

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

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

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

  330. 

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

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

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

  334. 

  335.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  348. 

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

  350. 

  351.         # ----------------------------------------------------------------------------------------------------

  352.         # Set up GUI (rack)

  353. 

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

  355. 

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

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

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

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

  360. 

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

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

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

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

  365. 

  366.         self.updateStyle()

  367. 

  368.         self.ui.rack.setStyleSheet("""

  369.           CarlaRackList#CarlaRackList {

  370.             background-color: black;

  371.           }

  372.         """)

  373. 

  374.         # ----------------------------------------------------------------------------------------------------

  375.         # Set up GUI (patchbay)

  376. 

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

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

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

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

  381. 

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

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

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

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

  386. 

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

  388.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  390. 

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

  392. 

  393.         self.ui.miniCanvasPreview.setRealParent(self)

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

  395. 

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

  397.         # Set up GUI (logs)

  398. 

  399.         self.ui.text_logs.textChanged.connect(self.slot_logButtonsState)

  400.         self.ui.logs_clear.clicked.connect(self.slot_logClear)

  401.         self.ui.logs_save.clicked.connect(self.slot_logSave)

  402.         self.ui.logs_autoscroll.stateChanged.connect(self.slot_toggleLogAutoscroll)

  403.         self.ui.text_logs.verticalScrollBar().valueChanged.connect(self.slot_logSliderMoved)

  404. 

  405.         # ----------------------------------------------------------------------------------------------------

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

  407. 

  408.         if MACOS:

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

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

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

  412.             self.ui.act_help_about_juce.setMenuRole(QAction.ApplicationSpecificRole)

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

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

  415. 

  416.         # ----------------------------------------------------------------------------------------------------

  417.         # Load Settings

  418. 

  419.         self.loadSettings(True)

  420. 

  421.         # ----------------------------------------------------------------------------------------------------

  422.         # Set-up Canvas

  423. 

  424.         if withCanvas:

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

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

  427. 

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

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

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

  431. 

  432.             self.setupCanvas()

  433. 

  434.         # ----------------------------------------------------------------------------------------------------

  435.         # Connect actions to functions

  436. 

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

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

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

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

  441. 

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

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

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

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

  446. 

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

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

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

  450. 

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

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

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

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

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

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

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

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

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

  460. 

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

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

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

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

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

  466. 

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

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

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

  470. 

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

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

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

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

  475. 

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

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

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

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

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

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

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

  483. 

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

  485. 

  486.         self.ui.listWidget.customContextMenuRequested.connect(self.slot_showPluginActionsMenu)

  487. 

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

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

  490. 

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

  492. 

  493.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  511. 

  512.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  513.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  514. 

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

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

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

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

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

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

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

  522. 

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

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

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

  526. 

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

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

  529. 

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

  531. 

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

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

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

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

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

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

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

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

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

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

  542. 

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

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

  545. 

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

  547. 

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

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

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

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

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

  553. 

  554.         # ----------------------------------------------------------------------------------------------------

  555.         # Final setup

  556. 

  557.         self.ui.text_logs.clear()

  558.         self.slot_logButtonsState(False)

  559.         self.setProperWindowTitle()

  560. 

  561.         # Disable non-supported features

  562.         features = gCarla.utils.get_supported_features()

  563. 

  564.         if "link" not in features:

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

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

  567. 

  568.         if "juce" not in features:

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

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

  571. 

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

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

  574.             self.startTimers()

  575. 

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

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

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

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

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

  581. 

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

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

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

  585. 

  586.         # Load initial project file if set

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

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

  589. 

  590.             if projectFile:

  591.                 self.loadProjectLater(projectFile)

  592. 

  593.         # For NSM we wait for the open message

  594.         if NSM_URL and host.nsmOK:

  595.             host.nsm_ready(NSM_CALLBACK_INIT)

  596.             return

  597. 

  598.         if not host.isControl:

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

  600. 

  601.     # --------------------------------------------------------------------------------------------------------

  602.     # Setup

  603. 

  604.     def compactPlugin(self, pluginId):

  605.         if pluginId > self.fPluginCount:

  606.             return

  607. 

  608.         pitem = self.fPluginList[pluginId]

  609. 

  610.         if pitem is None:

  611.             return

  612. 

  613.         pitem.recreateWidget(True)

  614. 

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

  616.         if pluginId > self.fPluginCount:

  617.             return

  618. 

  619.         pitem = self.fPluginList[pluginId]

  620. 

  621.         if pitem is None:

  622.             return

  623. 

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

  625.         pitem.recreateWidget(newColor = color)

  626. 

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

  628.         if pluginId > self.fPluginCount:

  629.             return

  630. 

  631.         pitem = self.fPluginList[pluginId]

  632. 

  633.         if pitem is None:

  634.             return

  635. 

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

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

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

  639.         else:

  640.             pitem.recreateWidget(newSkin = skin)

  641. 

  642.     def findPluginInPatchbay(self, pluginId):

  643.         if pluginId > self.fPluginCount:

  644.             return

  645. 

  646.         if self.fExternalPatchbay:

  647.             self.slot_canvasShowInternal()

  648. 

  649.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

  650.             name = self.host.get_plugin_info(pluginId)['name']

  651.             if not patchcanvas.focusGroupUsingGroupName(name):

  652.                 return

  653. 

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

  655. 

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

  657.         if pluginIdA == pluginIdB:

  658.             return

  659.         if pluginIdA < 0 or pluginIdB < 0:

  660.             return

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

  662.             return

  663. 

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

  665. 

  666.         itemA = self.fPluginList[pluginIdA]

  667.         compactA = itemA.isCompacted()

  668.         guiShownA = itemA.isGuiShown()

  669. 

  670.         itemB = self.fPluginList[pluginIdB]

  671.         compactB = itemB.isCompacted()

  672.         guiShownB = itemB.isGuiShown()

  673. 

  674.         itemA.setPluginId(pluginIdA)

  675.         itemA.recreateWidget2(compactB, guiShownB)

  676. 

  677.         itemB.setPluginId(pluginIdB)

  678.         itemB.recreateWidget2(compactA, guiShownA)

  679. 

  680.         if self.fWithCanvas:

  681.             self.slot_canvasRefresh()

  682. 

  683.     def setLoadRDFsNeeded(self):

  684.         self.fLadspaRdfNeedsUpdate = True

  685. 

  686.     def setProperWindowTitle(self):

  687.         title = self.fClientName

  688. 

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

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

  691.         if self.fSessionManagerName:

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

  693. 

  694.         self.setWindowTitle(title)

  695. 

  696.     def updateBufferSize(self, newBufferSize):

  697.         if self.fBufferSize == newBufferSize:

  698.             return

  699.         self.fBufferSize = newBufferSize

  700.         self.ui.cb_buffer_size.clear()

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

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

  703. 

  704.     def updateSampleRate(self, newSampleRate):

  705.         if self.fSampleRate == newSampleRate:

  706.             return

  707.         self.fSampleRate = newSampleRate

  708.         self.ui.cb_sample_rate.clear()

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

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

  711.         self.refreshTransport(True)

  712. 

  713.     # --------------------------------------------------------------------------------------------------------

  714.     # Files

  715. 

  716.     def makeExtraFilename(self):

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

  718. 

  719.     def loadProjectNow(self):

  720.         if not self.fProjectFilename:

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

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

  723.             return

  724. 

  725.         self.projectLoadingStarted()

  726.         self.fIsProjectLoading = True

  727. 

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

  729.             self.fIsProjectLoading = False

  730.             self.projectLoadingFinished()

  731. 

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

  733.                              self.host.get_last_error(),

  734.                              QMessageBox.Ok, QMessageBox.Ok)

  735. 

  736.     def loadProjectLater(self, filename):

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

  738.         self.setProperWindowTitle()

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

  740. 

  741.     def saveProjectNow(self):

  742.         if not self.fProjectFilename:

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

  744. 

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

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

  747.                              self.host.get_last_error(),

  748.                              QMessageBox.Ok, QMessageBox.Ok)

  749.             return

  750. 

  751.         if not self.fWithCanvas:

  752.             return

  753. 

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

  755.             json.dump({

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

  757.             }, fh)

  758. 

  759.     def projectLoadingStarted(self):

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

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

  762. 

  763.     def projectLoadingFinished(self):

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

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

  766. 

  767.         if not self.fWithCanvas:

  768.             return

  769. 

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

  771. 

  772.         extrafile = self.makeExtraFilename()

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

  774.             return

  775. 

  776.         try:

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

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

  779.         except:

  780.             return

  781. 

  782.         patchcanvas.restoreGroupPositions(canvasdata)

  783. 

  784.     # --------------------------------------------------------------------------------------------------------

  785.     # Files (menu actions)

  786. 

  787.     @pyqtSlot()

  788.     def slot_fileNew(self):

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

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

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

  792.             return

  793. 

  794.         self.pluginRemoveAll()

  795.         self.fProjectFilename = ""

  796.         self.setProperWindowTitle()

  797.         self.host.clear_project_filename()

  798. 

  799.     @pyqtSlot()

  800.     def slot_fileOpen(self):

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

  802.         filename, ok = QFileDialog.getOpenFileName(self, self.tr("Open 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.         newFile = True

  809. 

  810.         if self.fPluginCount > 0:

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

  812.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  814. 

  815.         if newFile:

  816.             self.pluginRemoveAll()

  817.             self.fProjectFilename = filename

  818.             self.setProperWindowTitle()

  819.             self.loadProjectNow()

  820.         else:

  821.             filenameOld = self.fProjectFilename

  822.             self.fProjectFilename = filename

  823.             self.loadProjectNow()

  824.             self.fProjectFilename = filenameOld

  825. 

  826.     @pyqtSlot()

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

  828.         if self.fProjectFilename and not saveAs:

  829.             return self.saveProjectNow()

  830. 

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

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

  833. 

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

  835.         if not filename:

  836.             return

  837. 

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

  839.             filename += ".carxp"

  840. 

  841.         if self.fProjectFilename != filename:

  842.             self.fProjectFilename = filename

  843.             self.setProperWindowTitle()

  844. 

  845.         self.saveProjectNow()

  846. 

  847.     @pyqtSlot()

  848.     def slot_fileSaveAs(self):

  849.         self.slot_fileSave(True)

  850. 

  851.     @pyqtSlot()

  852.     def slot_loadProjectNow(self):

  853.         self.loadProjectNow()

  854. 

  855.     # --------------------------------------------------------------------------------------------------------

  856.     # Engine (menu actions)

  857. 

  858.     @pyqtSlot()

  859.     def slot_engineStart(self):

  860.         audioDriver = setEngineSettings(self.host)

  861.         firstInit   = self.fFirstEngineInit

  862. 

  863.         self.fFirstEngineInit = False

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

  865. 

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

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

  868.                 settings = QSafeSettings()

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

  870.                 del settings

  871.                 if lastBpm >= 20.0:

  872.                     self.host.transport_bpm(lastBpm)

  873.             return

  874. 

  875.         elif firstInit:

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

  877.             return

  878. 

  879.         audioError = self.host.get_last_error()

  880. 

  881.         if audioError:

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

  883.         else:

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

  885. 

  886.     @pyqtSlot()

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

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

  889. 

  890.         if self.fPluginCount == 0:

  891.             self.engineStopFinal()

  892.             return True

  893. 

  894.         if not forced:

  895.             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"

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

  897.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  898.             if ask != QMessageBox.Yes:

  899.                 return False

  900. 

  901.         return self.slot_engineStopTryAgain()

  902. 

  903.     @pyqtSlot()

  904.     def slot_engineConfig(self):

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

  906. 

  907.         if not dialog.exec_():

  908.             return

  909. 

  910.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  911. 

  912.         if self.host.is_engine_running():

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

  914.         else:

  915.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  916.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  917.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  918. 

  919.     @pyqtSlot()

  920.     def slot_engineStopTryAgain(self):

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

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

  923.             return False

  924. 

  925.         self.engineStopFinal()

  926.         return True

  927. 

  928.     def engineStopFinal(self):

  929.         self.killTimers()

  930. 

  931.         if self.host.is_engine_running():

  932.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  933.                 self.removeAllPlugins()

  934.             elif self.fPluginCount != 0:

  935.                 self.fCurrentlyRemovingAllPlugins = True

  936.                 self.projectLoadingStarted()

  937. 

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

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

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

  941. 

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

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

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

  945. 

  946.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  947.             self.close()

  948.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  949.             self.slot_engineStart()

  950.             self.loadProjectNow()

  951.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  952. 

  953.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  954. 

  955.     # --------------------------------------------------------------------------------------------------------

  956.     # Engine (host callbacks)

  957. 

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

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

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

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

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

  963. 

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

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

  966. 

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

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

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

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

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

  972.             self.fExternalPatchbay = False

  973.         else:

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

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

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

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

  978.             self.fExternalPatchbay = True

  979. 

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

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

  982. 

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

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

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

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

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

  988. 

  989.         if not self.host.isPlugin:

  990.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  991. 

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

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

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

  995. 

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

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

  998. 

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

  1000.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1001. 

  1002.         self.updateBufferSize(bufferSize)

  1003.         self.updateSampleRate(int(sampleRate))

  1004.         self.refreshRuntimeInfo(0.0, 0)

  1005.         self.startTimers()

  1006. 

  1007.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1008.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1009.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1010.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1011.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1012. 

  1013.     @pyqtSlot()

  1014.     def slot_handleEngineStoppedCallback(self):

  1015.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1016. 

  1017.         patchcanvas.clear()

  1018.         self.killTimers()

  1019. 

  1020.         # just in case

  1021.         self.removeAllPlugins()

  1022.         self.refreshRuntimeInfo(0.0, 0)

  1023. 

  1024.         self.ui.menu_PluginMacros.setEnabled(False)

  1025.         self.ui.menu_Canvas.setEnabled(False)

  1026.         self.ui.w_transport.setEnabled(False)

  1027. 

  1028.         if not (self.host.isControl or self.host.isPlugin):

  1029.             self.ui.act_file_save.setEnabled(False)

  1030.             self.ui.act_engine_start.setEnabled(True)

  1031.             self.ui.act_engine_stop.setEnabled(False)

  1032. 

  1033.         if self.host.isPlugin or not self.fSessionManagerName:

  1034.             self.ui.act_file_open.setEnabled(False)

  1035.             self.ui.act_file_save_as.setEnabled(False)

  1036. 

  1037.     @pyqtSlot(int, str)

  1038.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1039.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1040. 

  1041.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1042.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1043. 

  1044.     @pyqtSlot(int)

  1045.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1046.         self.updateBufferSize(newBufferSize)

  1047. 

  1048.     @pyqtSlot(float)

  1049.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1050.         self.updateSampleRate(int(newSampleRate))

  1051. 

  1052.     @pyqtSlot(int, bool, str)

  1053.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1054.         if self.fCancelableActionBox is not None:

  1055.             self.fCancelableActionBox.close()

  1056. 

  1057.         if started:

  1058.             self.fCancelableActionBox = QMessageBox(self)

  1059.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1060.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1061.             self.fCancelableActionBox.setText(action)

  1062.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1063.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1064.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1065.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1066.             self.fCancelableActionBox.show()

  1067. 

  1068.         else:

  1069.             self.fCancelableActionBox = None

  1070. 

  1071.     @pyqtSlot()

  1072.     def slot_canlableActionBoxClicked(self):

  1073.         self.host.cancel_engine_action()

  1074. 

  1075.     @pyqtSlot()

  1076.     def slot_handleProjectLoadFinishedCallback(self):

  1077.         self.fIsProjectLoading = False

  1078.         self.projectLoadingFinished()

  1079. 

  1080.     # --------------------------------------------------------------------------------------------------------

  1081.     # Plugins

  1082. 

  1083.     def removeAllPlugins(self):

  1084.         self.ui.act_plugin_remove_all.setEnabled(False)

  1085.         patchcanvas.handleAllPluginsRemoved()

  1086. 

  1087.         while self.ui.listWidget.takeItem(0):

  1088.             pass

  1089. 

  1090.         self.clearSideStuff()

  1091. 

  1092.         for pitem in self.fPluginList:

  1093.             if pitem is None:

  1094.                 continue

  1095. 

  1096.             pitem.close()

  1097.             del pitem

  1098. 

  1099.         self.fPluginCount = 0

  1100.         self.fPluginList  = []

  1101. 

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

  1103.     # Plugins (menu actions)

  1104. 

  1105.     def showAddPluginDialog(self):

  1106.         if self.fPluginDatabaseDialog is None:

  1107.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1108.         dialog = self.fPluginDatabaseDialog

  1109. 

  1110.         ret = dialog.exec_()

  1111. 

  1112.         if dialog.fFavoritePluginsChanged:

  1113.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1114. 

  1115.         if not ret:

  1116.             return

  1117. 

  1118.         if not self.host.is_engine_running():

  1119.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1120.             return

  1121. 

  1122.         btype    = dialog.fRetPlugin['build']

  1123.         ptype    = dialog.fRetPlugin['type']

  1124.         filename = dialog.fRetPlugin['filename']

  1125.         label    = dialog.fRetPlugin['label']

  1126.         uniqueId = dialog.fRetPlugin['uniqueId']

  1127.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1128. 

  1129.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1130. 

  1131.     def showAddJackAppDialog(self):

  1132.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1133. 

  1134.         if not dialog.exec_():

  1135.             return

  1136. 

  1137.         if not self.host.is_engine_running():

  1138.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1139.             return

  1140. 

  1141.         return dialog.getCommandAndFlags()

  1142. 

  1143.     @pyqtSlot()

  1144.     def slot_favoritePluginAdd(self):

  1145.         plugin = self.sender().data()

  1146. 

  1147.         if plugin is None:

  1148.             return

  1149. 

  1150.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1151.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1152.             CustomMessageBox(self,

  1153.                              QMessageBox.Critical,

  1154.                              self.tr("Error"),

  1155.                              self.tr("Failed to load plugin"),

  1156.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1157. 

  1158.     @pyqtSlot()

  1159.     def slot_showPluginActionsMenu(self):

  1160.         menu = QMenu(self)

  1161. 

  1162.         menu.addSection("Plugins")

  1163.         menu.addAction(self.ui.act_plugin_add)

  1164. 

  1165.         if len(self.fFavoritePlugins) != 0:

  1166.             fmenu = QMenu("Add from favorites", self)

  1167.             for p in self.fFavoritePlugins:

  1168.                 act = fmenu.addAction(p['name'])

  1169.                 act.setData(p)

  1170.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1171.             menu.addMenu(fmenu)

  1172. 

  1173.         menu.addAction(self.ui.act_plugin_remove_all)

  1174. 

  1175.         menu.addSection("All plugins (macros)")

  1176.         menu.addAction(self.ui.act_plugins_enable)

  1177.         menu.addAction(self.ui.act_plugins_disable)

  1178.         menu.addSeparator()

  1179.         menu.addAction(self.ui.act_plugins_volume100)

  1180.         menu.addAction(self.ui.act_plugins_mute)

  1181.         menu.addSeparator()

  1182.         menu.addAction(self.ui.act_plugins_wet100)

  1183.         menu.addAction(self.ui.act_plugins_bypass)

  1184.         menu.addSeparator()

  1185.         menu.addAction(self.ui.act_plugins_center)

  1186.         menu.addSeparator()

  1187.         menu.addAction(self.ui.act_plugins_compact)

  1188.         menu.addAction(self.ui.act_plugins_expand)

  1189. 

  1190.         menu.exec_(QCursor.pos())

  1191. 

  1192.     @pyqtSlot()

  1193.     def slot_pluginAdd(self):

  1194.         data = self.showAddPluginDialog()

  1195. 

  1196.         if data is None:

  1197.             return

  1198. 

  1199.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1200. 

  1201.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1202.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1203.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1204. 

  1205.     @pyqtSlot()

  1206.     def slot_confirmRemoveAll(self):

  1207.         if self.fPluginCount == 0:

  1208.             return

  1209. 

  1210.         if QMessageBox.question(self, self.tr("Remove All"),

  1211.                                       self.tr("Are you sure you want to remove all plugins?"),

  1212.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1213.             return

  1214. 

  1215.         self.pluginRemoveAll()

  1216. 

  1217.     def pluginRemoveAll(self):

  1218.         if self.fPluginCount == 0:

  1219.             return

  1220. 

  1221.         self.fCurrentlyRemovingAllPlugins = True

  1222.         self.projectLoadingStarted()

  1223. 

  1224.         if not self.host.remove_all_plugins():

  1225.             self.projectLoadingFinished()

  1226.             self.fCurrentlyRemovingAllPlugins = False

  1227.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1228.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1229. 

  1230.     @pyqtSlot()

  1231.     def slot_jackAppAdd(self):

  1232.         data = self.showAddJackAppDialog()

  1233. 

  1234.         if data is None:

  1235.             return

  1236. 

  1237.         filename, name, label = data

  1238. 

  1239.         if not filename:

  1240.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1241.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1242.             return

  1243. 

  1244.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1245.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1246.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1247. 

  1248.     # --------------------------------------------------------------------------------------------------------

  1249.     # Plugins (macros)

  1250. 

  1251.     @pyqtSlot()

  1252.     def slot_pluginsEnable(self):

  1253.         if not self.host.is_engine_running():

  1254.             return

  1255. 

  1256.         for pitem in self.fPluginList:

  1257.             if pitem is None:

  1258.                 break

  1259. 

  1260.             pitem.getWidget().setActive(True, True, True)

  1261. 

  1262.     @pyqtSlot()

  1263.     def slot_pluginsDisable(self):

  1264.         if not self.host.is_engine_running():

  1265.             return

  1266. 

  1267.         for pitem in self.fPluginList:

  1268.             if pitem is None:

  1269.                 break

  1270. 

  1271.             pitem.getWidget().setActive(False, True, True)

  1272. 

  1273.     @pyqtSlot()

  1274.     def slot_pluginsVolume100(self):

  1275.         if not self.host.is_engine_running():

  1276.             return

  1277. 

  1278.         for pitem in self.fPluginList:

  1279.             if pitem is None:

  1280.                 break

  1281. 

  1282.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1283. 

  1284.     @pyqtSlot()

  1285.     def slot_pluginsMute(self):

  1286.         if not self.host.is_engine_running():

  1287.             return

  1288. 

  1289.         for pitem in self.fPluginList:

  1290.             if pitem is None:

  1291.                 break

  1292. 

  1293.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1294. 

  1295.     @pyqtSlot()

  1296.     def slot_pluginsWet100(self):

  1297.         if not self.host.is_engine_running():

  1298.             return

  1299. 

  1300.         for pitem in self.fPluginList:

  1301.             if pitem is None:

  1302.                 break

  1303. 

  1304.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1305. 

  1306.     @pyqtSlot()

  1307.     def slot_pluginsBypass(self):

  1308.         if not self.host.is_engine_running():

  1309.             return

  1310. 

  1311.         for pitem in self.fPluginList:

  1312.             if pitem is None:

  1313.                 break

  1314. 

  1315.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1316. 

  1317.     @pyqtSlot()

  1318.     def slot_pluginsCenter(self):

  1319.         if not self.host.is_engine_running():

  1320.             return

  1321. 

  1322.         for pitem in self.fPluginList:

  1323.             if pitem is None:

  1324.                 break

  1325. 

  1326.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1327.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1328.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1329. 

  1330.     @pyqtSlot()

  1331.     def slot_pluginsCompact(self):

  1332.         for pitem in self.fPluginList:

  1333.             if pitem is None:

  1334.                 break

  1335.             pitem.compact()

  1336. 

  1337.     @pyqtSlot()

  1338.     def slot_pluginsExpand(self):

  1339.         for pitem in self.fPluginList:

  1340.             if pitem is None:

  1341.                 break

  1342.             pitem.expand()

  1343. 

  1344.     # --------------------------------------------------------------------------------------------------------

  1345.     # Plugins (host callbacks)

  1346. 

  1347.     @pyqtSlot(int, str)

  1348.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1349.         if pluginId != self.fPluginCount:

  1350.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1351.             pitem = self.getPluginItem(pluginId)

  1352.             pitem.recreateWidget()

  1353.             return

  1354. 

  1355.         pitem = self.ui.listWidget.createItem(pluginId)

  1356.         self.fPluginList.append(pitem)

  1357.         self.fPluginCount += 1

  1358. 

  1359.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1360. 

  1361.     @pyqtSlot(int)

  1362.     def slot_handlePluginRemovedCallback(self, pluginId):

  1363.         patchcanvas.handlePluginRemoved(pluginId)

  1364. 

  1365.         if pluginId in self.fSelectedPlugins:

  1366.             self.clearSideStuff()

  1367. 

  1368.         if self.fPluginCount == 0:

  1369.             return

  1370. 

  1371.         pitem = self.getPluginItem(pluginId)

  1372. 

  1373.         self.fPluginCount -= 1

  1374.         self.fPluginList.pop(pluginId)

  1375.         self.ui.listWidget.takeItem(pluginId)

  1376. 

  1377.         if pitem is not None:

  1378.             pitem.close()

  1379.             del pitem

  1380. 

  1381.         if self.fPluginCount == 0:

  1382.             self.ui.act_plugin_remove_all.setEnabled(False)

  1383.             if self.fCurrentlyRemovingAllPlugins:

  1384.                 self.fCurrentlyRemovingAllPlugins = False

  1385.                 self.projectLoadingFinished()

  1386.             return

  1387. 

  1388.         # push all plugins 1 slot back

  1389.         for i in range(pluginId, self.fPluginCount):

  1390.             pitem = self.fPluginList[i]

  1391.             pitem.setPluginId(i)

  1392. 

  1393.         self.ui.act_plugin_remove_all.setEnabled(True)

  1394. 

  1395.     # --------------------------------------------------------------------------------------------------------

  1396.     # Canvas

  1397. 

  1398.     def clearSideStuff(self):

  1399.         if self.fWithCanvas:

  1400.             self.scene.clearSelection()

  1401. 

  1402.         self.fSelectedPlugins = []

  1403. 

  1404.         self.ui.keyboard.allNotesOff(False)

  1405.         self.ui.scrollArea.setEnabled(False)

  1406. 

  1407.         self.fPeaksCleared = True

  1408.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1409.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1410.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1411.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1412. 

  1413.     def setupCanvas(self):

  1414.         pOptions = patchcanvas.options_t()

  1415.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1416.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1417.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1418.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1419.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1420.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1421. 

  1422.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1423.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1424.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1425.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1426.         else:

  1427.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1428. 

  1429.         pFeatures = patchcanvas.features_t()

  1430.         pFeatures.group_info   = False

  1431.         pFeatures.group_rename = False

  1432.         pFeatures.port_info    = False

  1433.         pFeatures.port_rename  = False

  1434.         pFeatures.handle_group_pos = True

  1435. 

  1436.         patchcanvas.setOptions(pOptions)

  1437.         patchcanvas.setFeatures(pFeatures)

  1438.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1439. 

  1440.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1441. 

  1442.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1443.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1444.             self.fCanvasHeight = int(tryCanvasSize[1])

  1445.         else:

  1446.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1447.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1448. 

  1449.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1450.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1451.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1452. 

  1453.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1454.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1455. 

  1456.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1457.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1458. 

  1459.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1460.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1461.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1462. 

  1463.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1464.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1465. 

  1466.         else:

  1467.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1468. 

  1469.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1470.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1471.         else:

  1472.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1473. 

  1474.     def updateCanvasInitialPos(self):

  1475.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1476.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1477.         patchcanvas.setInitialPos(x, y)

  1478. 

  1479.     def updateMiniCanvasLater(self):

  1480.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1481. 

  1482.     # --------------------------------------------------------------------------------------------------------

  1483.     # Canvas (menu actions)

  1484. 

  1485.     @pyqtSlot()

  1486.     def slot_canvasShowInternal(self):

  1487.         self.fExternalPatchbay = False

  1488.         self.ui.act_canvas_show_internal.blockSignals(True)

  1489.         self.ui.act_canvas_show_external.blockSignals(True)

  1490.         self.ui.act_canvas_show_internal.setChecked(True)

  1491.         self.ui.act_canvas_show_external.setChecked(False)

  1492.         self.ui.act_canvas_show_internal.blockSignals(False)

  1493.         self.ui.act_canvas_show_external.blockSignals(False)

  1494.         self.slot_canvasRefresh()

  1495. 

  1496.     @pyqtSlot()

  1497.     def slot_canvasShowExternal(self):

  1498.         self.fExternalPatchbay = True

  1499.         self.ui.act_canvas_show_internal.blockSignals(True)

  1500.         self.ui.act_canvas_show_external.blockSignals(True)

  1501.         self.ui.act_canvas_show_internal.setChecked(False)

  1502.         self.ui.act_canvas_show_external.setChecked(True)

  1503.         self.ui.act_canvas_show_internal.blockSignals(False)

  1504.         self.ui.act_canvas_show_external.blockSignals(False)

  1505.         self.slot_canvasRefresh()

  1506. 

  1507.     @pyqtSlot()

  1508.     def slot_canvasArrange(self):

  1509.         patchcanvas.arrange()

  1510. 

  1511.     @pyqtSlot()

  1512.     def slot_canvasRefresh(self):

  1513.         patchcanvas.clear()

  1514. 

  1515.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1516.             return

  1517. 

  1518.         if self.host.is_engine_running():

  1519.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1520. 

  1521.         self.updateMiniCanvasLater()

  1522. 

  1523.     @pyqtSlot()

  1524.     def slot_canvasZoomFit(self):

  1525.         self.scene.zoom_fit()

  1526. 

  1527.     @pyqtSlot()

  1528.     def slot_canvasZoomIn(self):

  1529.         self.scene.zoom_in()

  1530. 

  1531.     @pyqtSlot()

  1532.     def slot_canvasZoomOut(self):

  1533.         self.scene.zoom_out()

  1534. 

  1535.     @pyqtSlot()

  1536.     def slot_canvasZoomReset(self):

  1537.         self.scene.zoom_reset()

  1538. 

  1539.     @pyqtSlot()

  1540.     def slot_canvasSaveImage(self):

  1541.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1542. 

  1543.         # FIXME use ok value, test if it works as expected

  1544.         if not newPath:

  1545.             return

  1546. 

  1547.         self.scene.clearSelection()

  1548. 

  1549.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1550.             imgFormat = "JPG"

  1551.         elif newPath.lower().endswith((".png",)):

  1552.             imgFormat = "PNG"

  1553.         else:

  1554.             # File-dialog may not auto-add the extension

  1555.             imgFormat = "PNG"

  1556.             newPath  += ".png"

  1557. 

  1558.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1559.         painter = QPainter(self.fExportImage)

  1560.         painter.save()

  1561.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1562.         painter.setRenderHint(QPainter.TextAntialiasing)

  1563.         self.scene.render(painter)

  1564.         self.fExportImage.save(newPath, imgFormat, 100)

  1565.         painter.restore()

  1566. 

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

  1568.     # Canvas (canvas callbacks)

  1569. 

  1570.     @pyqtSlot(int, int, QPointF)

  1571.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1572.         self.updateMiniCanvasLater()

  1573. 

  1574.     @pyqtSlot()

  1575.     def slot_canvasSelectionChanged(self):

  1576.         self.updateMiniCanvasLater()

  1577. 

  1578.     @pyqtSlot(float)

  1579.     def slot_canvasScaleChanged(self, scale):

  1580.         self.ui.miniCanvasPreview.setViewScale(scale)

  1581. 

  1582.     @pyqtSlot(list)

  1583.     def slot_canvasPluginSelected(self, pluginList):

  1584.         self.ui.keyboard.allNotesOff(False)

  1585.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1586.         self.fSelectedPlugins = pluginList

  1587. 

  1588.     # --------------------------------------------------------------------------------------------------------

  1589.     # Canvas (host callbacks)

  1590. 

  1591.     @pyqtSlot(int, int, int, str)

  1592.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1593.         pcSplit = patchcanvas.SPLIT_UNDEF

  1594.         pcIcon  = patchcanvas.ICON_APPLICATION

  1595. 

  1596.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1597.             pcIcon = patchcanvas.ICON_PLUGIN

  1598.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1599.             pcIcon = patchcanvas.ICON_HARDWARE

  1600.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1601.             pass

  1602.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1603.             pcIcon = patchcanvas.ICON_DISTRHO

  1604.         elif clientIcon == PATCHBAY_ICON_FILE:

  1605.             pcIcon = patchcanvas.ICON_FILE

  1606. 

  1607.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1608. 

  1609.         self.updateMiniCanvasLater()

  1610. 

  1611.         if pluginId < 0:

  1612.             return

  1613.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1614.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1615.             return

  1616. 

  1617.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1618.             hasCustomUI = False

  1619.             hasInlineDisplay = False

  1620.         else:

  1621.             hints = self.host.get_plugin_info(pluginId)['hints']

  1622.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1623.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1624. 

  1625.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1626. 

  1627.     @pyqtSlot(int)

  1628.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1629.         patchcanvas.removeGroup(clientId)

  1630.         self.updateMiniCanvasLater()

  1631. 

  1632.     @pyqtSlot(int, str)

  1633.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1634.         patchcanvas.renameGroup(clientId, newClientName)

  1635.         self.updateMiniCanvasLater()

  1636. 

  1637.     @pyqtSlot(int, int, int)

  1638.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1639.         pcIcon = patchcanvas.ICON_APPLICATION

  1640. 

  1641.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1642.             pcIcon = patchcanvas.ICON_PLUGIN

  1643.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1644.             pcIcon = patchcanvas.ICON_HARDWARE

  1645.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1646.             pass

  1647.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1648.             pcIcon = patchcanvas.ICON_DISTRHO

  1649.         elif clientIcon == PATCHBAY_ICON_FILE:

  1650.             pcIcon = patchcanvas.ICON_FILE

  1651. 

  1652.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1653.         self.updateMiniCanvasLater()

  1654. 

  1655.         if pluginId < 0:

  1656.             return

  1657.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1658.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1659.             return

  1660. 

  1661.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1662.             hasCustomUI = False

  1663.             hasInlineDisplay = False

  1664.         else:

  1665.             hints = self.host.get_plugin_info(pluginId)['hints']

  1666.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1667.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1668. 

  1669.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1670. 

  1671.     @pyqtSlot(int, int, int, int, str)

  1672.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1673.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1674.             portMode = patchcanvas.PORT_MODE_INPUT

  1675.         else:

  1676.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1677. 

  1678.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1679.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1680.             isAlternate = False

  1681.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1682.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1683.             isAlternate = False

  1684.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1685.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1686.             isAlternate = False

  1687.         else:

  1688.             portType    = patchcanvas.PORT_TYPE_NULL

  1689.             isAlternate = False

  1690. 

  1691.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1692.         self.updateMiniCanvasLater()

  1693. 

  1694.     @pyqtSlot(int, int)

  1695.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1696.         patchcanvas.removePort(groupId, portId)

  1697.         self.updateMiniCanvasLater()

  1698. 

  1699.     @pyqtSlot(int, int, int, int, str)

  1700.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1701.         patchcanvas.renamePort(groupId, portId, newPortName)

  1702.         self.updateMiniCanvasLater()

  1703. 

  1704.     @pyqtSlot(int, int, int, str)

  1705.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1706.         # TODO

  1707.         pass

  1708. 

  1709.     @pyqtSlot(int, int)

  1710.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1711.         # TODO

  1712.         pass

  1713. 

  1714.     @pyqtSlot(int, int, int, str)

  1715.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1716.         # TODO

  1717.         pass

  1718. 

  1719.     @pyqtSlot(int, int, int, int, int)

  1720.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1721.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1722.         self.updateMiniCanvasLater()

  1723. 

  1724.     @pyqtSlot(int, int, int)

  1725.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1726.         patchcanvas.disconnectPorts(connectionId)

  1727.         self.updateMiniCanvasLater()

  1728. 

  1729.     # --------------------------------------------------------------------------------------------------------

  1730.     # Settings

  1731. 

  1732.     def saveSettings(self):

  1733.         settings = QSafeSettings()

  1734. 

  1735.         settings.setValue("Geometry", self.saveGeometry())

  1736.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1737. 

  1738.         if not self.host.isControl:

  1739.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1740. 

  1741.         diskFolders = []

  1742. 

  1743.         for i in range(self.ui.cb_disk.count()):

  1744.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1745. 

  1746.         settings.setValue("DiskFolders", diskFolders)

  1747.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1748. 

  1749.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1750.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1751.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1752.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1753. 

  1754.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1755.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1756. 

  1757.         return settings

  1758. 

  1759.     def loadSettings(self, firstTime):

  1760.         settings = QSafeSettings()

  1761. 

  1762.         if firstTime:

  1763.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1764.             if not geometry.isNull():

  1765.                 self.restoreGeometry(geometry)

  1766. 

  1767.             showToolbar = settings.value("ShowToolbar", True, bool)

  1768.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1769.             self.ui.toolBar.setEnabled(showToolbar)

  1770.             self.ui.toolBar.setVisible(showToolbar)

  1771. 

  1772.             #if settings.contains("SplitterState"):

  1773.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1774.             #else:

  1775.                 #self.ui.splitter.setSizes([210, 99999])

  1776. 

  1777.             showSidePanel = settings.value("ShowSidePanel", True, bool) and not self.host.isControl

  1778.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1779.             self.slot_showSidePanel(showSidePanel)

  1780. 

  1781.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1782. 

  1783.             self.ui.cb_disk.setItemData(0, HOME)

  1784. 

  1785.             for i in range(len(diskFolders)):

  1786.                 if i == 0: continue

  1787.                 folder = diskFolders[i]

  1788.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1789. 

  1790.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1791.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1792. 

  1793.             showMeters = settings.value("ShowMeters", True, bool)

  1794.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1795.             self.ui.peak_in.setVisible(showMeters)

  1796.             self.ui.peak_out.setVisible(showMeters)

  1797. 

  1798.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1799.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1800.             self.ui.scrollArea.setVisible(showKeyboard)

  1801. 

  1802.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1803.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1804. 

  1805.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1806. 

  1807.         # TODO - complete this

  1808. 

  1809.         self.fSavedSettings = {

  1810.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1811.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1812.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1813.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1814.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1815.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1816.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1817.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1818.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1819.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1820.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1821.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1822.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1823.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1824.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1825.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1826.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1827.         }

  1828. 

  1829.         if not self.host.isControl:

  1830.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1831.         else:

  1832.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1833. 

  1834.         settings2 = QSafeSettings("falkTX", "Carla2")

  1835. 

  1836.         if self.host.experimental:

  1837.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1838.             self.ui.act_plugin_add_jack.setVisible(visible)

  1839.         else:

  1840.             self.ui.act_plugin_add_jack.setVisible(False)

  1841. 

  1842.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1843. 

  1844.         setEngineSettings(self.host)

  1845.         self.restartTimersIfNeeded()

  1846. 

  1847.         return settings

  1848. 

  1849.     # --------------------------------------------------------------------------------------------------------

  1850.     # Settings (helpers)

  1851. 

  1852.     def enableTransport(self, enabled):

  1853.         self.ui.group_transport_controls.setEnabled(enabled)

  1854.         self.ui.group_transport_settings.setEnabled(enabled)

  1855. 

  1856.     @pyqtSlot()

  1857.     def slot_restoreCanvasScrollbarValues(self):

  1858.         settings = QSafeSettings()

  1859.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1860.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1861.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  1862.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  1863. 

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

  1865.     # Settings (menu actions)

  1866. 

  1867.     @pyqtSlot(bool)

  1868.     def slot_showSidePanel(self, yesNo):

  1869.         self.ui.dockWidget.setEnabled(yesNo)

  1870.         self.ui.dockWidget.setVisible(yesNo)

  1871. 

  1872.     @pyqtSlot(bool)

  1873.     def slot_showToolbar(self, yesNo):

  1874.         self.ui.toolBar.setEnabled(yesNo)

  1875.         self.ui.toolBar.setVisible(yesNo)

  1876. 

  1877.     @pyqtSlot(bool)

  1878.     def slot_showCanvasMeters(self, yesNo):

  1879.         self.ui.peak_in.setVisible(yesNo)

  1880.         self.ui.peak_out.setVisible(yesNo)

  1881.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1882. 

  1883.     @pyqtSlot(bool)

  1884.     def slot_showCanvasKeyboard(self, yesNo):

  1885.         self.ui.scrollArea.setVisible(yesNo)

  1886.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1887. 

  1888.     @pyqtSlot()

  1889.     def slot_configureCarla(self):

  1890.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1891.         if not dialog.exec_():

  1892.             return

  1893. 

  1894.         self.loadSettings(False)

  1895. 

  1896.         patchcanvas.clear()

  1897. 

  1898.         self.setupCanvas()

  1899.         self.slot_miniCanvasCheckAll()

  1900. 

  1901.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1902.             pass

  1903.         elif self.host.is_engine_running():

  1904.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1905. 

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

  1907.     # About (menu actions)

  1908. 

  1909.     @pyqtSlot()

  1910.     def slot_aboutCarla(self):

  1911.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1912. 

  1913.     @pyqtSlot()

  1914.     def slot_aboutJuce(self):

  1915.         JuceAboutW(self.fParentOrSelf).exec_()

  1916. 

  1917.     @pyqtSlot()

  1918.     def slot_aboutQt(self):

  1919.         QApplication.instance().aboutQt()

  1920. 

  1921.     # --------------------------------------------------------------------------------------------------------

  1922.     # Disk (menu actions)

  1923. 

  1924.     @pyqtSlot(int)

  1925.     def slot_diskFolderChanged(self, index):

  1926.         if index < 0:

  1927.             return

  1928.         elif index == 0:

  1929.             filename = HOME

  1930.             self.ui.b_disk_remove.setEnabled(False)

  1931.         else:

  1932.             filename = self.ui.cb_disk.itemData(index)

  1933.             self.ui.b_disk_remove.setEnabled(True)

  1934. 

  1935.         self.fDirModel.setRootPath(filename)

  1936.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1937. 

  1938.     @pyqtSlot()

  1939.     def slot_diskFolderAdd(self):

  1940.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1941. 

  1942.         if newPath:

  1943.             if newPath[-1] == os.sep:

  1944.                 newPath = newPath[:-1]

  1945.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1946.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1947.             self.ui.b_disk_remove.setEnabled(True)

  1948. 

  1949.     @pyqtSlot()

  1950.     def slot_diskFolderRemove(self):

  1951.         index = self.ui.cb_disk.currentIndex()

  1952. 

  1953.         if index <= 0:

  1954.             return

  1955. 

  1956.         self.ui.cb_disk.removeItem(index)

  1957. 

  1958.         if self.ui.cb_disk.currentIndex() == 0:

  1959.             self.ui.b_disk_remove.setEnabled(False)

  1960. 

  1961.     @pyqtSlot(QModelIndex)

  1962.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1963.         filename = self.fDirModel.filePath(modelIndex)

  1964. 

  1965.         if not self.ui.listWidget.isDragUrlValid(filename):

  1966.             return

  1967. 

  1968.         if not self.host.load_file(filename):

  1969.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1970.                              self.tr("Failed to load file"),

  1971.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1972. 

  1973.     # --------------------------------------------------------------------------------------------------------

  1974.     # Transport

  1975. 

  1976.     def refreshTransport(self, forced = False):

  1977.         if not self.ui.l_transport_time.isVisible():

  1978.             return

  1979.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1980.             return

  1981. 

  1982.         timeInfo = self.host.get_transport_info()

  1983.         playing  = timeInfo['playing']

  1984.         frame    = timeInfo['frame']

  1985.         bpm      = timeInfo['bpm']

  1986. 

  1987.         if playing != self.fLastTransportState or forced:

  1988.             if playing:

  1989.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1990.                 self.ui.b_transport_play.setChecked(True)

  1991.                 self.ui.b_transport_play.setIcon(icon)

  1992.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1993.             else:

  1994.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1995.                 self.ui.b_transport_play.setChecked(False)

  1996.                 self.ui.b_transport_play.setIcon(icon)

  1997.                 #self.ui.b_play.setText(self.tr("&Play"))

  1998. 

  1999.             self.fLastTransportState = playing

  2000. 

  2001.         if frame != self.fLastTransportFrame or forced:

  2002.             self.fLastTransportFrame = frame

  2003. 

  2004.             time = frame / self.fSampleRate

  2005.             secs =  time % 60

  2006.             mins = (time / 60) % 60

  2007.             hrs  = (time / 3600) % 60

  2008.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2009. 

  2010.             frame1 =  frame % 1000

  2011.             frame2 = (frame / 1000) % 1000

  2012.             frame3 = (frame / 1000000) % 1000

  2013.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2014. 

  2015.             bar  = timeInfo['bar']

  2016.             beat = timeInfo['beat']

  2017.             tick = timeInfo['tick']

  2018.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2019. 

  2020.         if bpm != self.fLastTransportBPM or forced:

  2021.             self.fLastTransportBPM = bpm

  2022. 

  2023.             if bpm > 0.0:

  2024.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2025.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2026.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2027.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2028.             else:

  2029.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2030. 

  2031.     # --------------------------------------------------------------------------------------------------------

  2032.     # Transport (menu actions)

  2033. 

  2034.     @pyqtSlot(bool)

  2035.     def slot_transportPlayPause(self, toggled):

  2036.         if self.host.isPlugin or not self.host.is_engine_running():

  2037.             return

  2038. 

  2039.         if toggled:

  2040.             self.host.transport_play()

  2041.         else:

  2042.             self.host.transport_pause()

  2043. 

  2044.         self.refreshTransport()

  2045. 

  2046.     @pyqtSlot()

  2047.     def slot_transportStop(self):

  2048.         if self.host.isPlugin or not self.host.is_engine_running():

  2049.             return

  2050. 

  2051.         self.host.transport_pause()

  2052.         self.host.transport_relocate(0)

  2053. 

  2054.         self.refreshTransport()

  2055. 

  2056.     @pyqtSlot()

  2057.     def slot_transportBackwards(self):

  2058.         if self.host.isPlugin or not self.host.is_engine_running():

  2059.             return

  2060. 

  2061.         newFrame = self.host.get_current_transport_frame() - 100000

  2062. 

  2063.         if newFrame < 0:

  2064.             newFrame = 0

  2065. 

  2066.         self.host.transport_relocate(newFrame)

  2067. 

  2068.     @pyqtSlot(float)

  2069.     def slot_transportBpmChanged(self, newValue):

  2070.         self.host.transport_bpm(newValue)

  2071. 

  2072.     @pyqtSlot()

  2073.     def slot_transportForwards(self):

  2074.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2075.             return

  2076. 

  2077.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2078.         self.host.transport_relocate(newFrame)

  2079. 

  2080.     @pyqtSlot(bool)

  2081.     def slot_transportJackEnabled(self, clicked):

  2082.         if not self.host.is_engine_running():

  2083.             return

  2084.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2085.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2086.                                     self.host.transportMode,

  2087.                                     self.host.transportExtra)

  2088. 

  2089.     @pyqtSlot(bool)

  2090.     def slot_transportLinkEnabled(self, clicked):

  2091.         if not self.host.is_engine_running():

  2092.             return

  2093.         extra = ":link:" if clicked else ""

  2094.         self.host.transportExtra = extra

  2095.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2096.                                     self.host.transportMode,

  2097.                                     self.host.transportExtra)

  2098. 

  2099.     # --------------------------------------------------------------------------------------------------------

  2100.     # Other

  2101. 

  2102.     @pyqtSlot(bool)

  2103.     def slot_xrunClear(self):

  2104.         self.host.clear_engine_xruns()

  2105. 

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

  2107.     # Canvas scrollbars

  2108. 

  2109.     @pyqtSlot(int)

  2110.     def slot_horizontalScrollBarChanged(self, value):

  2111.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2112.         if maximum == 0:

  2113.             xp = 0

  2114.         else:

  2115.             xp = float(value) / maximum

  2116.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2117.         self.updateCanvasInitialPos()

  2118. 

  2119.     @pyqtSlot(int)

  2120.     def slot_verticalScrollBarChanged(self, value):

  2121.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2122.         if maximum == 0:

  2123.             yp = 0

  2124.         else:

  2125.             yp = float(value) / maximum

  2126.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2127.         self.updateCanvasInitialPos()

  2128. 

  2129.     # --------------------------------------------------------------------------------------------------------

  2130.     # Canvas keyboard

  2131. 

  2132.     @pyqtSlot(int)

  2133.     def slot_noteOn(self, note):

  2134.         for pluginId in self.fSelectedPlugins:

  2135.             self.host.send_midi_note(pluginId, 0, note, 100)

  2136. 

  2137.             pedit = self.getPluginEditDialog(pluginId)

  2138.             pedit.noteOn(0, note, 100)

  2139. 

  2140.     @pyqtSlot(int)

  2141.     def slot_noteOff(self, note):

  2142.         for pluginId in self.fSelectedPlugins:

  2143.             self.host.send_midi_note(pluginId, 0, note, 0)

  2144. 

  2145.             pedit = self.getPluginEditDialog(pluginId)

  2146.             pedit.noteOff(0, note)

  2147. 

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

  2149.     # Canvas keyboard (host callbacks)

  2150. 

  2151.     @pyqtSlot(int, int, int, int)

  2152.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2153.         if pluginId in self.fSelectedPlugins:

  2154.             self.ui.keyboard.sendNoteOn(note, False)

  2155. 

  2156.     @pyqtSlot(int, int, int)

  2157.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2158.         if pluginId in self.fSelectedPlugins:

  2159.             self.ui.keyboard.sendNoteOff(note, False)

  2160. 

  2161.     # --------------------------------------------------------------------------------------------------------

  2162. 

  2163.     @pyqtSlot(int)

  2164.     def slot_handleUpdateCallback(self, pluginId):

  2165.         pitem = self.getPluginItem(pluginId)

  2166. 

  2167.         if pitem is None:

  2168.             return

  2169. 

  2170.         wasCompacted = pitem.isCompacted()

  2171.         isCompacted  = wasCompacted

  2172. 

  2173.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2174.         if not check:

  2175.             return

  2176.         isCompacted = bool(check == "true")

  2177. 

  2178.         if wasCompacted == isCompacted:

  2179.             return

  2180. 

  2181.         pitem.recreateWidget(True)

  2182. 

  2183.     # --------------------------------------------------------------------------------------------------------

  2184.     # MiniCanvas stuff

  2185. 

  2186.     @pyqtSlot()

  2187.     def slot_miniCanvasCheckAll(self):

  2188.         self.slot_miniCanvasCheckSize()

  2189.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2190.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2191. 

  2192.     @pyqtSlot()

  2193.     def slot_miniCanvasCheckSize(self):

  2194.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2195.             return

  2196. 

  2197.         currentIndex = self.ui.tabWidget.currentIndex()

  2198. 

  2199.         if currentIndex == 1:

  2200.             width  = self.ui.graphicsView.width()

  2201.             height = self.ui.graphicsView.height()

  2202.         else:

  2203.             self.ui.tabWidget.blockSignals(True)

  2204.             self.ui.tabWidget.setCurrentIndex(1)

  2205.             width  = self.ui.graphicsView.width()

  2206.             height = self.ui.graphicsView.height()

  2207.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2208.             self.ui.tabWidget.blockSignals(False)

  2209. 

  2210.         self.scene.updateLimits()

  2211. 

  2212.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2213. 

  2214.     @pyqtSlot(float, float)

  2215.     def slot_miniCanvasMoved(self, xp, yp):

  2216.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2217.         vsb = self.ui.graphicsView.verticalScrollBar()

  2218.         hsb.setValue(xp * hsb.maximum())

  2219.         vsb.setValue(yp * vsb.maximum())

  2220.         self.updateCanvasInitialPos()

  2221. 

  2222.     # --------------------------------------------------------------------------------------------------------

  2223.     # Logs autoscroll, save and clear

  2224. 

  2225.     @pyqtSlot(int)

  2226.     def slot_toggleLogAutoscroll(self, checkState):

  2227.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2228.         if self.autoscrollOnNewLog:

  2229.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2230. 

  2231.     @pyqtSlot(int)

  2232.     def slot_logSliderMoved(self, slider_pos):

  2233.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2234.             self.lastLogSliderPos = slider_pos

  2235.         else:

  2236.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2237. 

  2238.     @pyqtSlot()

  2239.     def slot_logButtonsState(self, enabled=True):

  2240.         self.ui.logs_clear.setEnabled(enabled)

  2241.         self.ui.logs_save.setEnabled(enabled)

  2242. 

  2243.     @pyqtSlot()

  2244.     def slot_logSave(self):

  2245.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2246.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2247. 

  2248.         if not filename:

  2249.             return

  2250. 

  2251.         try:

  2252.             with open(filename, "w") as logfile:

  2253.                 logfile.write(self.ui.text_logs.toPlainText())

  2254.                 logfile.close()

  2255.         except:

  2256.             return

  2257. 

  2258.     @pyqtSlot()

  2259.     def slot_logClear(self):

  2260.         self.ui.text_logs.clear()

  2261.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2262.         self.slot_logButtonsState(False)

  2263. 

  2264.     # --------------------------------------------------------------------------------------------------------

  2265.     # Timers

  2266. 

  2267.     def startTimers(self):

  2268.         if self.fIdleTimerFast == 0:

  2269.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2270. 

  2271.         if self.fIdleTimerSlow == 0:

  2272.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2273. 

  2274.     def restartTimersIfNeeded(self):

  2275.         if self.fIdleTimerFast != 0:

  2276.             self.killTimer(self.fIdleTimerFast)

  2277.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2278. 

  2279.         if self.fIdleTimerSlow != 0:

  2280.             self.killTimer(self.fIdleTimerSlow)

  2281.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2282. 

  2283.     def killTimers(self):

  2284.         if self.fIdleTimerFast != 0:

  2285.             self.killTimer(self.fIdleTimerFast)

  2286.             self.fIdleTimerFast = 0

  2287. 

  2288.         if self.fIdleTimerSlow != 0:

  2289.             self.killTimer(self.fIdleTimerSlow)

  2290.             self.fIdleTimerSlow = 0

  2291. 

  2292.     # --------------------------------------------------------------------------------------------------------

  2293.     # Misc

  2294. 

  2295.     @pyqtSlot(int)

  2296.     def slot_tabChanged(self, index):

  2297.         if index != 1:

  2298.             return

  2299. 

  2300.         self.ui.graphicsView.setFocus()

  2301. 

  2302.     @pyqtSlot(int)

  2303.     def slot_handleReloadAllCallback(self, pluginId):

  2304.         if pluginId >= self.fPluginCount:

  2305.             return

  2306. 

  2307.         pitem = self.fPluginList[pluginId]

  2308.         if pitem is None:

  2309.             return

  2310. 

  2311.         pitem.recreateWidget()

  2312. 

  2313.     # --------------------------------------------------------------------------------------------------------

  2314. 

  2315.     @pyqtSlot(int, int, str)

  2316.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2317.         if opcode == NSM_CALLBACK_INIT:

  2318.             return

  2319. 

  2320.         # Error

  2321.         elif opcode == NSM_CALLBACK_ERROR:

  2322.             pass

  2323. 

  2324.         # Reply

  2325.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2326.             self.fFirstEngineInit    = False

  2327.             self.fSessionManagerName = valueStr

  2328.             self.setProperWindowTitle()

  2329. 

  2330.         # Open

  2331.         elif opcode == NSM_CALLBACK_OPEN:

  2332.             self.fClientName      = os.path.basename(valueStr)

  2333.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2334.             self.setProperWindowTitle()

  2335. 

  2336.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2337.             self.slot_engineStop(True)

  2338.             return

  2339. 

  2340.         # Save

  2341.         elif opcode == NSM_CALLBACK_SAVE:

  2342.             self.saveProjectNow()

  2343. 

  2344.         # Session is Loaded

  2345.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2346.             pass

  2347. 

  2348.         # Show Optional Gui

  2349.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2350.             self.show()

  2351. 

  2352.         # Hide Optional Gui

  2353.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2354.             self.hide()

  2355. 

  2356.         self.host.nsm_ready(opcode)

  2357. 

  2358.     # --------------------------------------------------------------------------------------------------------

  2359. 

  2360.     def fixLogText(self, text):

  2361.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2362. 

  2363.     @pyqtSlot(int, int, int, int, float, str)

  2364.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2365.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2366. 

  2367.     @pyqtSlot(str)

  2368.     def slot_handleInfoCallback(self, info):

  2369.         QMessageBox.information(self, "Information", info)

  2370. 

  2371.     @pyqtSlot(str)

  2372.     def slot_handleErrorCallback(self, error):

  2373.         QMessageBox.critical(self, "Error", error)

  2374. 

  2375.     @pyqtSlot()

  2376.     def slot_handleQuitCallback(self):

  2377.         self.fIsProjectLoading = False

  2378.         self.killTimers()

  2379.         self.removeAllPlugins()

  2380.         self.projectLoadingFinished()

  2381. 

  2382.     @pyqtSlot(int)

  2383.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2384.         # FIXME

  2385.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2386.             patchcanvas.redrawPluginGroup(pluginId)

  2387. 

  2388.     # --------------------------------------------------------------------------------------------------------

  2389. 

  2390.     @pyqtSlot()

  2391.     def slot_handleSIGUSR1(self):

  2392.         print("Got SIGUSR1 -> Saving project now")

  2393.         self.slot_fileSave()

  2394. 

  2395.     @pyqtSlot()

  2396.     def slot_handleSIGTERM(self):

  2397.         print("Got SIGTERM -> Closing now")

  2398.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2399.         self.slot_engineStop(True)

  2400. 

  2401.     # --------------------------------------------------------------------------------------------------------

  2402.     # Internal stuff

  2403. 

  2404.     def getExtraPtr(self, plugin):

  2405.         ptype = plugin['type']

  2406. 

  2407.         if ptype == PLUGIN_LADSPA:

  2408.             uniqueId = plugin['uniqueId']

  2409. 

  2410.             self.maybeLoadRDFs()

  2411. 

  2412.             for rdfItem in self.fLadspaRdfList:

  2413.                 if rdfItem.UniqueID == uniqueId:

  2414.                     return pointer(rdfItem)

  2415. 

  2416.         elif ptype == PLUGIN_SF2:

  2417.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2418.                 return self._true

  2419. 

  2420.         return None

  2421. 

  2422.     def maybeLoadRDFs(self):

  2423.         if not self.fLadspaRdfNeedsUpdate:

  2424.             return

  2425. 

  2426.         self.fLadspaRdfNeedsUpdate = False

  2427.         self.fLadspaRdfList = []

  2428. 

  2429.         if not haveLRDF:

  2430.             return

  2431. 

  2432.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2433.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2434. 

  2435.         if os.path.exists(frLadspaFile):

  2436.             frLadspa = open(frLadspaFile, 'r')

  2437. 

  2438.             try:

  2439.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2440.             except:

  2441.                 pass

  2442. 

  2443.             frLadspa.close()

  2444. 

  2445.     # --------------------------------------------------------------------------------------------------------

  2446. 

  2447.     def getPluginCount(self):

  2448.         return self.fPluginCount

  2449. 

  2450.     def getPluginItem(self, pluginId):

  2451.         if pluginId >= self.fPluginCount:

  2452.             return None

  2453. 

  2454.         pitem = self.fPluginList[pluginId]

  2455.         if pitem is None:

  2456.             return None

  2457.         #if False:

  2458.             #return CarlaRackItem(self, 0, False)

  2459. 

  2460.         return pitem

  2461. 

  2462.     def getPluginEditDialog(self, pluginId):

  2463.         if pluginId >= self.fPluginCount:

  2464.             return None

  2465. 

  2466.         pitem = self.fPluginList[pluginId]

  2467.         if pitem is None:

  2468.             return None

  2469.         if False:

  2470.             return PluginEdit(self, self.host, 0)

  2471. 

  2472.         return pitem.getEditDialog()

  2473. 

  2474.     def getPluginSlotWidget(self, pluginId):

  2475.         if pluginId >= self.fPluginCount:

  2476.             return None

  2477. 

  2478.         pitem = self.fPluginList[pluginId]

  2479.         if pitem is None:

  2480.             return None

  2481.         #if False:

  2482.             #return AbstractPluginSlot()

  2483. 

  2484.         return pitem.getWidget()

  2485. 

  2486.     # --------------------------------------------------------------------------------------------------------

  2487. 

  2488.     def waitForPendingEvents(self):

  2489.         pass

  2490. 

  2491.     # --------------------------------------------------------------------------------------------------------

  2492.     # show/hide event

  2493. 

  2494.     def showEvent(self, event):

  2495.         self.getAndRefreshRuntimeInfo()

  2496.         self.refreshTransport(True)

  2497.         QMainWindow.showEvent(self, event)

  2498. 

  2499.         if QT_VERSION >= 0x50600:

  2500.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2501.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2502. 

  2503.         # set our gui as parent for all plugins UIs

  2504.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2505.             if MACOS:

  2506.                 nsViewPtr = int(self.winId())

  2507.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2508.             else:

  2509.                 winIdStr = "%x" % int(self.winId())

  2510.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2511. 

  2512.     def hideEvent(self, event):

  2513.         # disable parent

  2514.         if not (self.host.isControl or self.host.isPlugin):

  2515.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2516. 

  2517.         QMainWindow.hideEvent(self, event)

  2518. 

  2519.     # --------------------------------------------------------------------------------------------------------

  2520.     # resize event

  2521. 

  2522.     def resizeEvent(self, event):

  2523.         QMainWindow.resizeEvent(self, event)

  2524. 

  2525.         if self.fWithCanvas:

  2526.             self.slot_miniCanvasCheckSize()

  2527. 

  2528.     # --------------------------------------------------------------------------------------------------------

  2529.     # timer event

  2530. 

  2531.     def refreshRuntimeInfo(self, load, xruns):

  2532.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2533.         txt2 = "" if (xruns == 1) else "s"

  2534.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2535.         self.ui.pb_dsp_load.setValue(int(load))

  2536. 

  2537.     def getAndRefreshRuntimeInfo(self):

  2538.         if not self.ui.pb_dsp_load.isVisible():

  2539.             return

  2540.         if not self.host.is_engine_running():

  2541.             return

  2542.         info = self.host.get_runtime_engine_info()

  2543.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2544. 

  2545.     def idleFast(self):

  2546.         self.host.engine_idle()

  2547.         self.refreshTransport()

  2548. 

  2549.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2550.             return

  2551. 

  2552.         for pitem in self.fPluginList:

  2553.             if pitem is None:

  2554.                 break

  2555. 

  2556.             pitem.getWidget().idleFast()

  2557. 

  2558.         for pluginId in self.fSelectedPlugins:

  2559.             self.fPeaksCleared = False

  2560.             if self.ui.peak_in.isVisible():

  2561.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2562.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2563.             if self.ui.peak_out.isVisible():

  2564.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2565.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2566.             return

  2567. 

  2568.         if self.fPeaksCleared:

  2569.             return

  2570. 

  2571.         self.fPeaksCleared = True

  2572.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2573.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2574.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2575.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2576. 

  2577.     def idleSlow(self):

  2578.         self.getAndRefreshRuntimeInfo()

  2579. 

  2580.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2581.             return

  2582. 

  2583.         for pitem in self.fPluginList:

  2584.             if pitem is None:

  2585.                 break

  2586. 

  2587.             pitem.getWidget().idleSlow()

  2588. 

  2589.     def timerEvent(self, event):

  2590.         if event.timerId() == self.fIdleTimerFast:

  2591.             self.idleFast()

  2592. 

  2593.         elif event.timerId() == self.fIdleTimerSlow:

  2594.             self.idleSlow()

  2595. 

  2596.         QMainWindow.timerEvent(self, event)

  2597. 

  2598.     # --------------------------------------------------------------------------------------------------------

  2599.     # color/style change event

  2600. 

  2601.     def changeEvent(self, event):

  2602.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2603.             self.updateStyle()

  2604.         QMainWindow.changeEvent(self, event)

  2605. 

  2606.     def updateStyle(self):

  2607.         # Rack padding images setup

  2608.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2609.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2610. 

  2611.         min_value = 0.07

  2612. 

  2613.         if PYQT_VERSION >= 0x50600:

  2614.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2615.         else:

  2616.             value_fix = 1.5

  2617. 

  2618.         rack_pal = self.ui.rack.palette()

  2619.         bg_color = rack_pal.window().color()

  2620.         fg_color = rack_pal.text().color()

  2621.         bg_value = 1.0 - bg_color.blackF()

  2622.         if bg_value != 0.0 and bg_value < min_value:

  2623.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2624.         else:

  2625.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2626. 

  2627.         painter = QPainter()

  2628.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2629. 

  2630.         painter.begin(rack_imgL)

  2631.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2632.         painter.setBrush(pad_color)

  2633.         painter.drawRect(fillRect)

  2634.         painter.end()

  2635.         rack_pixmapL = QPixmap(rack_imgL)

  2636.         self.imgL_palette = QPalette()

  2637.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2638.         self.ui.pad_left.setPalette(self.imgL_palette)

  2639.         self.ui.pad_left.setAutoFillBackground(True)

  2640. 

  2641.         painter.begin(rack_imgR)

  2642.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2643.         painter.setBrush(pad_color)

  2644.         painter.drawRect(fillRect)

  2645.         painter.end()

  2646.         rack_pixmapR = QPixmap(rack_imgR)

  2647.         self.imgR_palette = QPalette()

  2648.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2649.         self.ui.pad_right.setPalette(self.imgR_palette)

  2650.         self.ui.pad_right.setAutoFillBackground(True)

  2651. 

  2652.         # qt's rgba is actually argb, so convert that

  2653.         bg_color_value = bg_color.rgba()

  2654.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2655. 

  2656.         fg_color_value = fg_color.rgba()

  2657.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2658. 

  2659.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2660.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2661. 

  2662.     # --------------------------------------------------------------------------------------------------------

  2663.     # paint event

  2664. 

  2665.     #def paintEvent(self, event):

  2666.         #QMainWindow.paintEvent(self, event)

  2667. 

  2668.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2669.             #return

  2670. 

  2671.         #painter = QPainter(self)

  2672.         #painter.setBrush(QColor(36, 36, 36))

  2673.         #painter.setPen(QColor(62, 62, 62))

  2674.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2675. 

  2676.     # --------------------------------------------------------------------------------------------------------

  2677.     # close event

  2678. 

  2679.     def shouldIgnoreClose(self):

  2680.         if self.host.isControl or self.host.isPlugin:

  2681.             return False

  2682.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2683.             return False

  2684.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2685.             return QMessageBox.question(self, self.tr("Quit"),

  2686.                                               self.tr("Are you sure you want to quit Carla?"),

  2687.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2688.         return False

  2689. 

  2690.     def closeEvent(self, event):

  2691.         if self.shouldIgnoreClose():

  2692.             event.ignore()

  2693.             return

  2694. 

  2695.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2696.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2697.             self.fMacClosingHelper = False

  2698.             event.ignore()

  2699. 

  2700.             for i in reversed(range(self.fPluginCount)):

  2701.                 self.host.show_custom_ui(i, False)

  2702. 

  2703.             QTimer.singleShot(100, self.close)

  2704.             return

  2705. 

  2706.         self.killTimers()

  2707.         self.saveSettings()

  2708. 

  2709.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2710.             if not self.slot_engineStop(True):

  2711.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2712.                 event.ignore()

  2713.                 return

  2714. 

  2715.         QMainWindow.closeEvent(self, event)

  2716. 

  2717. # ------------------------------------------------------------------------------------------------

  2718. # Canvas callback

  2719. 

  2720. def canvasCallback(action, value1, value2, valueStr):

  2721.     host = gCarla.gui.host

  2722. 

  2723.     if action == patchcanvas.ACTION_GROUP_INFO:

  2724.         pass

  2725. 

  2726.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2727.         pass

  2728. 

  2729.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2730.         groupId = value1

  2731.         patchcanvas.splitGroup(groupId)

  2732.         gCarla.gui.updateMiniCanvasLater()

  2733. 

  2734.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2735.         groupId = value1

  2736.         patchcanvas.joinGroup(groupId)

  2737.         gCarla.gui.updateMiniCanvasLater()

  2738. 

  2739.     elif action == patchcanvas.ACTION_PORT_INFO:

  2740.         pass

  2741. 

  2742.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2743.         pass

  2744. 

  2745.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2746.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2747. 

  2748.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2749.             print("Connection failed:", host.get_last_error())

  2750. 

  2751.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2752.         connectionId = value1

  2753. 

  2754.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2755.             print("Disconnect failed:", host.get_last_error())

  2756. 

  2757.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2758.         pluginId = value1

  2759. 

  2760.         if not host.clone_plugin(pluginId):

  2761.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2762.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2763. 

  2764.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2765.         pluginId = value1

  2766.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2767. 

  2768.         if pwidget is not None:

  2769.             pwidget.showEditDialog()

  2770. 

  2771.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2772.         pluginId = value1

  2773.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2774. 

  2775.         if pwidget is not None:

  2776.             pwidget.showRenameDialog()

  2777. 

  2778.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2779.         pluginId = value1

  2780.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2781. 

  2782.         if pwidget is not None:

  2783.             pwidget.showReplaceDialog()

  2784. 

  2785.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2786.         pluginId = value1

  2787. 

  2788.         if not host.remove_plugin(pluginId):

  2789.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2790.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2791. 

  2792.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2793.         pluginId = value1

  2794.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2795. 

  2796.         if pwidget is not None:

  2797.             pwidget.showCustomUI()

  2798. 

  2799.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2800.         gCarla.gui.slot_showPluginActionsMenu()

  2801. 

  2802.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2803.         # FIXME

  2804.         if gCarla.gui.fPluginCount == 0: return

  2805.         pluginId = value1

  2806.         width, height = [int(v) for v in valueStr.split(":")]

  2807.         return host.render_inline_display(pluginId, width, height)

  2808. 

  2809. # ------------------------------------------------------------------------------------------------------------

  2810. # Engine callback

  2811. 

  2812. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2813.     # kdevelop likes this :)

  2814.     if False: host = CarlaHostNull()

  2815. 

  2816.     valueStr = charPtrToString(valueStr)

  2817. 

  2818.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2819.         host.processMode   = value1

  2820.         host.transportMode = value2

  2821.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2822.         host.processMode   = value1

  2823.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2824.         host.transportMode  = value1

  2825.         host.transportExtra = valueStr

  2826. 

  2827.     if action == ENGINE_CALLBACK_DEBUG:

  2828.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2829.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2830.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2831.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2832.         host.PluginRemovedCallback.emit(pluginId)

  2833.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2834.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2835.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2836.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2837.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2838.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2839.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2840.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2841.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  2842.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  2843.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  2844.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  2845.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  2846.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2847.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2848.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2849.         host.ProgramChangedCallback.emit(pluginId, value1)

  2850.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2851.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2852.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2853.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2854.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2855.         host.UiStateChangedCallback.emit(pluginId, value1)

  2856.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2857.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2858.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2859.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2860.     elif action == ENGINE_CALLBACK_UPDATE:

  2861.         host.UpdateCallback.emit(pluginId)

  2862.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2863.         host.ReloadInfoCallback.emit(pluginId)

  2864.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2865.         host.ReloadParametersCallback.emit(pluginId)

  2866.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2867.         host.ReloadProgramsCallback.emit(pluginId)

  2868.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2869.         host.ReloadAllCallback.emit(pluginId)

  2870.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2871.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2872.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2873.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2874.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2875.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2876.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2877.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2878.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2879.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2880.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2881.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2882.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2883.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2884.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2885.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2886.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2887.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2888.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2889.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2890.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2891.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2892.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2893.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2894.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2895.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2896.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2897.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2898.         host.EngineStoppedCallback.emit()

  2899.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2900.         host.ProcessModeChangedCallback.emit(value1)

  2901.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2902.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2903.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2904.         host.BufferSizeChangedCallback.emit(value1)

  2905.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2906.         host.SampleRateChangedCallback.emit(valuef)

  2907.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2908.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2909.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2910.         host.ProjectLoadFinishedCallback.emit()

  2911.     elif action == ENGINE_CALLBACK_NSM:

  2912.         host.NSMCallback.emit(value1, value2, valueStr)

  2913.     elif action == ENGINE_CALLBACK_IDLE:

  2914.         QApplication.processEvents()

  2915.     elif action == ENGINE_CALLBACK_INFO:

  2916.         host.InfoCallback.emit(valueStr)

  2917.     elif action == ENGINE_CALLBACK_ERROR:

  2918.         host.ErrorCallback.emit(valueStr)

  2919.     elif action == ENGINE_CALLBACK_QUIT:

  2920.         host.QuitCallback.emit()

  2921.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2922.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2923.     else:

  2924.         print("unhandled action", action)

  2925. 

  2926. # ------------------------------------------------------------------------------------------------------------

  2927. # File callback

  2928. 

  2929. def fileCallback(ptr, action, isDir, title, filter):

  2930.     title  = charPtrToString(title)

  2931.     filter = charPtrToString(filter)

  2932. 

  2933.     if action == FILE_CALLBACK_OPEN:

  2934.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2935.     elif action == FILE_CALLBACK_SAVE:

  2936.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2937.     else:

  2938.         ret, ok = ("", "")

  2939. 

  2940.     # FIXME use ok value, test if it works as expected

  2941.     if not ret:

  2942.         return None

  2943. 

  2944.     # FIXME

  2945.     global fileRet

  2946.     fileRet = c_char_p(ret.encode("utf-8"))

  2947.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2948.     return retval.contents.value

  2949. 

  2950. # ------------------------------------------------------------------------------------------------------------

  2951. # Init host

  2952. 

  2953. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2954.     pathBinaries, pathResources = getPaths(libPrefix)

  2955. 

  2956.     # --------------------------------------------------------------------------------------------------------

  2957.     # Fail if binary dir is not found

  2958. 

  2959.     if not os.path.exists(pathBinaries):

  2960.         if failError:

  2961.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2962.             sys.exit(1)

  2963.         return

  2964. 

  2965.     # --------------------------------------------------------------------------------------------------------

  2966.     # Check if we should open main lib as local or global

  2967. 

  2968.     settings = QSafeSettings("falkTX", "Carla2")

  2969. 

  2970.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  2971. 

  2972.     # --------------------------------------------------------------------------------------------------------

  2973.     # Set Carla library name

  2974. 

  2975.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2976.     libname   = os.path.join(pathBinaries, libname)

  2977.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2978. 

  2979.     # --------------------------------------------------------------------------------------------------------

  2980.     # Print info

  2981. 

  2982.     print("Carla %s started, status:" % VERSION)

  2983.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2984.     print("  Qt version:     %s" % QT_VERSION_STR)

  2985.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2986.     print("  Binary dir:     %s" % pathBinaries)

  2987.     print("  Resources dir:  %s" % pathResources)

  2988. 

  2989.     # --------------------------------------------------------------------------------------------------------

  2990.     # Init host

  2991. 

  2992.     if failError:

  2993.         # no try

  2994.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2995.     else:

  2996.         try:

  2997.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2998.         except:

  2999.             host = CarlaHostQtNull()

  3000. 

  3001.     host.isControl = isControl

  3002.     host.isPlugin  = isPlugin

  3003. 

  3004.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3005.     host.set_file_callback(fileCallback)

  3006. 

  3007.     # If it's a plugin the paths are already set

  3008.     if not isPlugin:

  3009.         host.pathBinaries  = pathBinaries

  3010.         host.pathResources = pathResources

  3011.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3012.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3013. 

  3014.         if not isControl:

  3015.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3016. 

  3017.     # --------------------------------------------------------------------------------------------------------

  3018.     # Init utils

  3019. 

  3020.     gCarla.utils = CarlaUtils(utilsname)

  3021.     gCarla.utils.set_process_name(os.path.basename(initName))

  3022. 

  3023.     try:

  3024.         sys.stdout.flush()

  3025.     except:

  3026.         pass

  3027. 

  3028.     sys.stdout = CarlaPrint(False)

  3029.     sys.stderr = CarlaPrint(True)

  3030.     sys.excepthook = sys_excepthook

  3031. 

  3032.     # --------------------------------------------------------------------------------------------------------

  3033.     # Done

  3034. 

  3035.     return host

  3036. 

  3037. # ------------------------------------------------------------------------------------------------------------

  3038. # Load host settings

  3039. 

  3040. def loadHostSettings(host):

  3041.     # kdevelop likes this :)

  3042.     if False: host = CarlaHostNull()

  3043. 

  3044.     settings = QSafeSettings("falkTX", "Carla2")

  3045. 

  3046.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3047.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3048.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3049.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3050.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3051.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3052.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3053.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3054.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3055.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool)

  3056.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3057.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3058.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3059.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3060. 

  3061.     if host.isPlugin:

  3062.         return

  3063. 

  3064.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3065. 

  3066.     # enums

  3067.     if host.audioDriverForced is None:

  3068.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3069. 

  3070.     if not host.processModeForced:

  3071.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3072. 

  3073.     host.nextProcessMode = host.processMode

  3074. 

  3075.     # --------------------------------------------------------------------------------------------------------

  3076.     # fix things if needed

  3077. 

  3078.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3079.         if LADISH_APP_NAME:

  3080.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3081.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3082. 

  3083.         else:

  3084.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3085. 

  3086.     if gCarla.nogui:

  3087.         host.showLogs = False

  3088. 

  3089.     # --------------------------------------------------------------------------------------------------------

  3090.     # run headless host now if nogui option enabled

  3091. 

  3092.     if gCarla.nogui:

  3093.         runHostWithoutUI(host)

  3094. 

  3095. # ------------------------------------------------------------------------------------------------------------

  3096. # Set host settings

  3097. 

  3098. def setHostSettings(host):

  3099.     # kdevelop likes this :)

  3100.     if False: host = CarlaHostNull()

  3101. 

  3102.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3103.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3104.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3105.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3106.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3107.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3108.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3109.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3110. 

  3111.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3112.         return

  3113. 

  3114.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3115.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3116.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3117. 

  3118. # ------------------------------------------------------------------------------------------------------------

  3119. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3120. 

  3121. def setEngineSettings(host):

  3122.     # kdevelop likes this :)

  3123.     if False: host = CarlaHostNull()

  3124. 

  3125.     # --------------------------------------------------------------------------------------------------------

  3126.     # do nothing if control

  3127. 

  3128.     if host.isControl:

  3129.         return "Control"

  3130. 

  3131.     # --------------------------------------------------------------------------------------------------------

  3132. 

  3133.     settings = QSafeSettings("falkTX", "Carla2")

  3134. 

  3135.     # --------------------------------------------------------------------------------------------------------

  3136.     # main settings

  3137. 

  3138.     setHostSettings(host)

  3139. 

  3140.     # --------------------------------------------------------------------------------------------------------

  3141.     # file paths

  3142. 

  3143.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3144.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3145. 

  3146.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3147.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3148. 

  3149.     # --------------------------------------------------------------------------------------------------------

  3150.     # plugin paths

  3151. 

  3152.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3153.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3154.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3155.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3156.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3157.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3158.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3159. 

  3160.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3161.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3162.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3163.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3164.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3165.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3166.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3167. 

  3168.     # --------------------------------------------------------------------------------------------------------

  3169.     # don't continue if plugin

  3170. 

  3171.     if host.isPlugin:

  3172.         return "Plugin"

  3173. 

  3174.     # --------------------------------------------------------------------------------------------------------

  3175.     # osc settings

  3176. 

  3177.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3178. 

  3179.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3180.         portNumTCP = -1

  3181.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3182.         portNumTCP = 0

  3183.     else:

  3184.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3185. 

  3186.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3187.         portNumUDP = -1

  3188.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3189.         portNumUDP = 0

  3190.     else:

  3191.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3192. 

  3193.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3194.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3195.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3196. 

  3197.     # --------------------------------------------------------------------------------------------------------

  3198.     # wine settings

  3199. 

  3200.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3201.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3202.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3203.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3204.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3205.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3206. 

  3207.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3208.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3209.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3210.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3211.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3212.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3213. 

  3214.     # --------------------------------------------------------------------------------------------------------

  3215.     # driver and device settings

  3216. 

  3217.     # driver name

  3218.     if host.audioDriverForced is not None:

  3219.         audioDriver = host.audioDriverForced

  3220.     else:

  3221.         try:

  3222.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3223.         except:

  3224.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3225. 

  3226.     # driver options

  3227.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3228.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3229.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3230.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3231. 

  3232.     # Only setup audio things if engine is not running

  3233.     if not host.is_engine_running():

  3234.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3235.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3236. 

  3237.         if not audioDriver.startswith("JACK"):

  3238.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3239.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3240.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3241. 

  3242.     # --------------------------------------------------------------------------------------------------------

  3243.     # fix things if needed

  3244. 

  3245.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3246.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3247.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3248. 

  3249.     # --------------------------------------------------------------------------------------------------------

  3250.     # return selected driver name

  3251. 

  3252.     return audioDriver

  3253. 

  3254. # ------------------------------------------------------------------------------------------------------------

  3255. # Run Carla without showing UI

  3256. 

  3257. def runHostWithoutUI(host):

  3258.     # kdevelop likes this :)

  3259.     if False: host = CarlaHostNull()

  3260. 

  3261.     # --------------------------------------------------------------------------------------------------------

  3262.     # Some initial checks

  3263. 

  3264.     if not gCarla.nogui:

  3265.         return

  3266. 

  3267.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3268. 

  3269.     if not projectFile:

  3270.         print("Carla no-gui mode can only be used together with a project file.")

  3271.         sys.exit(1)

  3272. 

  3273.     # --------------------------------------------------------------------------------------------------------

  3274.     # Additional imports

  3275. 

  3276.     from time import sleep

  3277. 

  3278.     # --------------------------------------------------------------------------------------------------------

  3279.     # Init engine

  3280. 

  3281.     audioDriver = setEngineSettings(host)

  3282.     if not host.engine_init(audioDriver, "Carla"):

  3283.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3284.         sys.exit(1)

  3285. 

  3286.     if not host.load_project(projectFile):

  3287.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3288.         host.engine_close()

  3289.         sys.exit(1)

  3290. 

  3291.     # --------------------------------------------------------------------------------------------------------

  3292.     # Idle

  3293. 

  3294.     print("Carla ready!")

  3295. 

  3296.     while host.is_engine_running() and not gCarla.term:

  3297.         host.engine_idle()

  3298.         sleep(0.0333) # 30 Hz

  3299. 

  3300.     # --------------------------------------------------------------------------------------------------------

  3301.     # Stop

  3302. 

  3303.     host.engine_close()

  3304.     sys.exit(0)

  3305. 

  3306. # ------------------------------------------------------------------------------------------------------------