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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.pluginSelected.connect(self.slot_canvasPluginSelected)

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

  510. 

  511.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  512.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  513. 

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

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

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

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

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

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

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

  521. 

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

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

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

  525. 

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

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

  528. 

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

  530. 

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

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

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

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

  535.         host.PatchbayClientPositionChangedCallback.connect(self.slot_handlePatchbayClientPositionChangedCallback)

  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 loadProjectNow(self):

  717.         if not self.fProjectFilename:

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

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

  720.             return

  721. 

  722.         self.projectLoadingStarted()

  723.         self.fIsProjectLoading = True

  724. 

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

  726.             self.fIsProjectLoading = False

  727.             self.projectLoadingFinished()

  728. 

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

  730.                              self.host.get_last_error(),

  731.                              QMessageBox.Ok, QMessageBox.Ok)

  732. 

  733.     def loadProjectLater(self, filename):

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

  735.         self.setProperWindowTitle()

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

  737. 

  738.     def saveProjectNow(self):

  739.         if not self.fProjectFilename:

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

  741. 

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

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

  744.                              self.host.get_last_error(),

  745.                              QMessageBox.Ok, QMessageBox.Ok)

  746.             return

  747. 

  748.     def projectLoadingStarted(self):

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

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

  751. 

  752.     def projectLoadingFinished(self):

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

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

  755. 

  756.         if not self.fWithCanvas:

  757.             return

  758. 

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

  760. 

  761.         extrafile = self.fProjectFilename.rsplit(".",1)[0]+".json"

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

  763.             return

  764. 

  765.         try:

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

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

  768.         except:

  769.             return

  770. 

  771.         patchcanvas.restoreGroupPositions(canvasdata)

  772. 

  773.     # --------------------------------------------------------------------------------------------------------

  774.     # Files (menu actions)

  775. 

  776.     @pyqtSlot()

  777.     def slot_fileNew(self):

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

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

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

  781.             return

  782. 

  783.         self.pluginRemoveAll()

  784.         self.fProjectFilename = ""

  785.         self.setProperWindowTitle()

  786.         self.host.clear_project_filename()

  787. 

  788.     @pyqtSlot()

  789.     def slot_fileOpen(self):

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

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

  792. 

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

  794.         if not filename:

  795.             return

  796. 

  797.         newFile = True

  798. 

  799.         if self.fPluginCount > 0:

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

  801.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  803. 

  804.         if newFile:

  805.             self.pluginRemoveAll()

  806.             self.fProjectFilename = filename

  807.             self.setProperWindowTitle()

  808.             self.loadProjectNow()

  809.         else:

  810.             filenameOld = self.fProjectFilename

  811.             self.fProjectFilename = filename

  812.             self.loadProjectNow()

  813.             self.fProjectFilename = filenameOld

  814. 

  815.     @pyqtSlot()

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

  817.         if self.fProjectFilename and not saveAs:

  818.             return self.saveProjectNow()

  819. 

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

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

  822. 

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

  824.         if not filename:

  825.             return

  826. 

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

  828.             filename += ".carxp"

  829. 

  830.         if self.fProjectFilename != filename:

  831.             self.fProjectFilename = filename

  832.             self.setProperWindowTitle()

  833. 

  834.         self.saveProjectNow()

  835. 

  836.     @pyqtSlot()

  837.     def slot_fileSaveAs(self):

  838.         self.slot_fileSave(True)

  839. 

  840.     @pyqtSlot()

  841.     def slot_loadProjectNow(self):

  842.         self.loadProjectNow()

  843. 

  844.     # --------------------------------------------------------------------------------------------------------

  845.     # Engine (menu actions)

  846. 

  847.     @pyqtSlot()

  848.     def slot_engineStart(self):

  849.         audioDriver = setEngineSettings(self.host)

  850.         firstInit   = self.fFirstEngineInit

  851. 

  852.         self.fFirstEngineInit = False

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

  854. 

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

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

  857.                 settings = QSafeSettings()

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

  859.                 del settings

  860.                 if lastBpm >= 20.0:

  861.                     self.host.transport_bpm(lastBpm)

  862.             return

  863. 

  864.         elif firstInit:

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

  866.             return

  867. 

  868.         audioError = self.host.get_last_error()

  869. 

  870.         if audioError:

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

  872.         else:

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

  874. 

  875.     @pyqtSlot()

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

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

  878. 

  879.         if self.fPluginCount == 0:

  880.             self.engineStopFinal()

  881.             return True

  882. 

  883.         if not forced:

  884.             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"

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

  886.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  887.             if ask != QMessageBox.Yes:

  888.                 return False

  889. 

  890.         return self.slot_engineStopTryAgain()

  891. 

  892.     @pyqtSlot()

  893.     def slot_engineConfig(self):

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

  895. 

  896.         if not dialog.exec_():

  897.             return

  898. 

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

  900. 

  901.         if self.host.is_engine_running():

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

  903.         else:

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

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

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

  907. 

  908.     @pyqtSlot()

  909.     def slot_engineStopTryAgain(self):

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

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

  912.             return False

  913. 

  914.         self.engineStopFinal()

  915.         return True

  916. 

  917.     def engineStopFinal(self):

  918.         self.killTimers()

  919. 

  920.         if self.host.is_engine_running():

  921.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  922.                 self.removeAllPlugins()

  923.             elif self.fPluginCount != 0:

  924.                 self.fCurrentlyRemovingAllPlugins = True

  925.                 self.projectLoadingStarted()

  926. 

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

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

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

  930. 

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

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

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

  934. 

  935.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  936.             self.close()

  937.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  938.             self.slot_engineStart()

  939.             self.loadProjectNow()

  940.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  941. 

  942.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  943. 

  944.     # --------------------------------------------------------------------------------------------------------

  945.     # Engine (host callbacks)

  946. 

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

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

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

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

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

  952. 

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

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

  955. 

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

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

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

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

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

  961.             self.fExternalPatchbay = False

  962.         else:

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

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

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

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

  967.             self.fExternalPatchbay = True

  968. 

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

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

  971. 

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

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

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

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

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

  977. 

  978.         if not self.host.isPlugin:

  979.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  980. 

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

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

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

  984. 

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

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

  987. 

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

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

  990. 

  991.         self.updateBufferSize(bufferSize)

  992.         self.updateSampleRate(int(sampleRate))

  993.         self.refreshRuntimeInfo(0.0, 0)

  994.         self.startTimers()

  995. 

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

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

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

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

  1000.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1001. 

  1002.     @pyqtSlot()

  1003.     def slot_handleEngineStoppedCallback(self):

  1004.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1005. 

  1006.         patchcanvas.clear()

  1007.         self.killTimers()

  1008. 

  1009.         # just in case

  1010.         self.removeAllPlugins()

  1011.         self.refreshRuntimeInfo(0.0, 0)

  1012. 

  1013.         self.ui.menu_PluginMacros.setEnabled(False)

  1014.         self.ui.menu_Canvas.setEnabled(False)

  1015.         self.ui.w_transport.setEnabled(False)

  1016. 

  1017.         if not (self.host.isControl or self.host.isPlugin):

  1018.             self.ui.act_file_save.setEnabled(False)

  1019.             self.ui.act_engine_start.setEnabled(True)

  1020.             self.ui.act_engine_stop.setEnabled(False)

  1021. 

  1022.         if self.host.isPlugin or not self.fSessionManagerName:

  1023.             self.ui.act_file_open.setEnabled(False)

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

  1025. 

  1026.     @pyqtSlot(int, str)

  1027.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1028.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1029. 

  1030.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1031.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1032. 

  1033.     @pyqtSlot(int)

  1034.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1035.         self.updateBufferSize(newBufferSize)

  1036. 

  1037.     @pyqtSlot(float)

  1038.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1039.         self.updateSampleRate(int(newSampleRate))

  1040. 

  1041.     @pyqtSlot(int, bool, str)

  1042.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1043.         if self.fCancelableActionBox is not None:

  1044.             self.fCancelableActionBox.close()

  1045. 

  1046.         if started:

  1047.             self.fCancelableActionBox = QMessageBox(self)

  1048.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1049.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1050.             self.fCancelableActionBox.setText(action)

  1051.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1052.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1053.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1054.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1055.             self.fCancelableActionBox.show()

  1056. 

  1057.         else:

  1058.             self.fCancelableActionBox = None

  1059. 

  1060.     @pyqtSlot()

  1061.     def slot_canlableActionBoxClicked(self):

  1062.         self.host.cancel_engine_action()

  1063. 

  1064.     @pyqtSlot()

  1065.     def slot_handleProjectLoadFinishedCallback(self):

  1066.         self.fIsProjectLoading = False

  1067.         self.projectLoadingFinished()

  1068. 

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

  1070.     # Plugins

  1071. 

  1072.     def removeAllPlugins(self):

  1073.         self.ui.act_plugin_remove_all.setEnabled(False)

  1074.         patchcanvas.handleAllPluginsRemoved()

  1075. 

  1076.         while self.ui.listWidget.takeItem(0):

  1077.             pass

  1078. 

  1079.         self.clearSideStuff()

  1080. 

  1081.         for pitem in self.fPluginList:

  1082.             if pitem is None:

  1083.                 continue

  1084. 

  1085.             pitem.close()

  1086.             del pitem

  1087. 

  1088.         self.fPluginCount = 0

  1089.         self.fPluginList  = []

  1090. 

  1091.     # --------------------------------------------------------------------------------------------------------

  1092.     # Plugins (menu actions)

  1093. 

  1094.     def showAddPluginDialog(self):

  1095.         if self.fPluginDatabaseDialog is None:

  1096.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1097.         dialog = self.fPluginDatabaseDialog

  1098. 

  1099.         ret = dialog.exec_()

  1100. 

  1101.         if dialog.fFavoritePluginsChanged:

  1102.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1103. 

  1104.         if not ret:

  1105.             return

  1106. 

  1107.         if not self.host.is_engine_running():

  1108.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1109.             return

  1110. 

  1111.         btype    = dialog.fRetPlugin['build']

  1112.         ptype    = dialog.fRetPlugin['type']

  1113.         filename = dialog.fRetPlugin['filename']

  1114.         label    = dialog.fRetPlugin['label']

  1115.         uniqueId = dialog.fRetPlugin['uniqueId']

  1116.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1117. 

  1118.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1119. 

  1120.     def showAddJackAppDialog(self):

  1121.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1122. 

  1123.         if not dialog.exec_():

  1124.             return

  1125. 

  1126.         if not self.host.is_engine_running():

  1127.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1128.             return

  1129. 

  1130.         return dialog.getCommandAndFlags()

  1131. 

  1132.     @pyqtSlot()

  1133.     def slot_favoritePluginAdd(self):

  1134.         plugin = self.sender().data()

  1135. 

  1136.         if plugin is None:

  1137.             return

  1138. 

  1139.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1140.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1141.             CustomMessageBox(self,

  1142.                              QMessageBox.Critical,

  1143.                              self.tr("Error"),

  1144.                              self.tr("Failed to load plugin"),

  1145.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1146. 

  1147.     @pyqtSlot()

  1148.     def slot_showPluginActionsMenu(self):

  1149.         menu = QMenu(self)

  1150. 

  1151.         menu.addSection("Plugins")

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

  1153. 

  1154.         if len(self.fFavoritePlugins) != 0:

  1155.             fmenu = QMenu("Add from favorites", self)

  1156.             for p in self.fFavoritePlugins:

  1157.                 act = fmenu.addAction(p['name'])

  1158.                 act.setData(p)

  1159.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1160.             menu.addMenu(fmenu)

  1161. 

  1162.         menu.addAction(self.ui.act_plugin_remove_all)

  1163. 

  1164.         menu.addSection("All plugins (macros)")

  1165.         menu.addAction(self.ui.act_plugins_enable)

  1166.         menu.addAction(self.ui.act_plugins_disable)

  1167.         menu.addSeparator()

  1168.         menu.addAction(self.ui.act_plugins_volume100)

  1169.         menu.addAction(self.ui.act_plugins_mute)

  1170.         menu.addSeparator()

  1171.         menu.addAction(self.ui.act_plugins_wet100)

  1172.         menu.addAction(self.ui.act_plugins_bypass)

  1173.         menu.addSeparator()

  1174.         menu.addAction(self.ui.act_plugins_center)

  1175.         menu.addSeparator()

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

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

  1178. 

  1179.         menu.exec_(QCursor.pos())

  1180. 

  1181.     @pyqtSlot()

  1182.     def slot_pluginAdd(self):

  1183.         data = self.showAddPluginDialog()

  1184. 

  1185.         if data is None:

  1186.             return

  1187. 

  1188.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1189. 

  1190.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1191.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1192.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1193. 

  1194.     @pyqtSlot()

  1195.     def slot_confirmRemoveAll(self):

  1196.         if self.fPluginCount == 0:

  1197.             return

  1198. 

  1199.         if QMessageBox.question(self, self.tr("Remove All"),

  1200.                                       self.tr("Are you sure you want to remove all plugins?"),

  1201.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1202.             return

  1203. 

  1204.         self.pluginRemoveAll()

  1205. 

  1206.     def pluginRemoveAll(self):

  1207.         if self.fPluginCount == 0:

  1208.             return

  1209. 

  1210.         self.fCurrentlyRemovingAllPlugins = True

  1211.         self.projectLoadingStarted()

  1212. 

  1213.         if not self.host.remove_all_plugins():

  1214.             self.projectLoadingFinished()

  1215.             self.fCurrentlyRemovingAllPlugins = False

  1216.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1217.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_jackAppAdd(self):

  1221.         data = self.showAddJackAppDialog()

  1222. 

  1223.         if data is None:

  1224.             return

  1225. 

  1226.         filename, name, label = data

  1227. 

  1228.         if not filename:

  1229.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1230.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1231.             return

  1232. 

  1233.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1234.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1235.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1236. 

  1237.     # --------------------------------------------------------------------------------------------------------

  1238.     # Plugins (macros)

  1239. 

  1240.     @pyqtSlot()

  1241.     def slot_pluginsEnable(self):

  1242.         if not self.host.is_engine_running():

  1243.             return

  1244. 

  1245.         for pitem in self.fPluginList:

  1246.             if pitem is None:

  1247.                 break

  1248. 

  1249.             pitem.getWidget().setActive(True, True, True)

  1250. 

  1251.     @pyqtSlot()

  1252.     def slot_pluginsDisable(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(False, True, True)

  1261. 

  1262.     @pyqtSlot()

  1263.     def slot_pluginsVolume100(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().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1272. 

  1273.     @pyqtSlot()

  1274.     def slot_pluginsMute(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, 0.0)

  1283. 

  1284.     @pyqtSlot()

  1285.     def slot_pluginsWet100(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_DRYWET, 1.0)

  1294. 

  1295.     @pyqtSlot()

  1296.     def slot_pluginsBypass(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, 0.0)

  1305. 

  1306.     @pyqtSlot()

  1307.     def slot_pluginsCenter(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(PARAMETER_BALANCE_LEFT, -1.0)

  1316.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1317.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1318. 

  1319.     @pyqtSlot()

  1320.     def slot_pluginsCompact(self):

  1321.         for pitem in self.fPluginList:

  1322.             if pitem is None:

  1323.                 break

  1324.             pitem.compact()

  1325. 

  1326.     @pyqtSlot()

  1327.     def slot_pluginsExpand(self):

  1328.         for pitem in self.fPluginList:

  1329.             if pitem is None:

  1330.                 break

  1331.             pitem.expand()

  1332. 

  1333.     # --------------------------------------------------------------------------------------------------------

  1334.     # Plugins (host callbacks)

  1335. 

  1336.     @pyqtSlot(int, str)

  1337.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1338.         if pluginId != self.fPluginCount:

  1339.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1340.             pitem = self.getPluginItem(pluginId)

  1341.             pitem.recreateWidget()

  1342.             return

  1343. 

  1344.         pitem = self.ui.listWidget.createItem(pluginId)

  1345.         self.fPluginList.append(pitem)

  1346.         self.fPluginCount += 1

  1347. 

  1348.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1349. 

  1350.     @pyqtSlot(int)

  1351.     def slot_handlePluginRemovedCallback(self, pluginId):

  1352.         patchcanvas.handlePluginRemoved(pluginId)

  1353. 

  1354.         if pluginId in self.fSelectedPlugins:

  1355.             self.clearSideStuff()

  1356. 

  1357.         if self.fPluginCount == 0:

  1358.             return

  1359. 

  1360.         pitem = self.getPluginItem(pluginId)

  1361. 

  1362.         self.fPluginCount -= 1

  1363.         self.fPluginList.pop(pluginId)

  1364.         self.ui.listWidget.takeItem(pluginId)

  1365. 

  1366.         if pitem is not None:

  1367.             pitem.close()

  1368.             del pitem

  1369. 

  1370.         if self.fPluginCount == 0:

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

  1372.             if self.fCurrentlyRemovingAllPlugins:

  1373.                 self.fCurrentlyRemovingAllPlugins = False

  1374.                 self.projectLoadingFinished()

  1375.             return

  1376. 

  1377.         # push all plugins 1 slot back

  1378.         for i in range(pluginId, self.fPluginCount):

  1379.             pitem = self.fPluginList[i]

  1380.             pitem.setPluginId(i)

  1381. 

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

  1383. 

  1384.     # --------------------------------------------------------------------------------------------------------

  1385.     # Canvas

  1386. 

  1387.     def clearSideStuff(self):

  1388.         if self.fWithCanvas:

  1389.             self.scene.clearSelection()

  1390. 

  1391.         self.fSelectedPlugins = []

  1392. 

  1393.         self.ui.keyboard.allNotesOff(False)

  1394.         self.ui.scrollArea.setEnabled(False)

  1395. 

  1396.         self.fPeaksCleared = True

  1397.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1398.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1399.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1400.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1401. 

  1402.     def setupCanvas(self):

  1403.         pOptions = patchcanvas.options_t()

  1404.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1405.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1406.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1407.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1408.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1409.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1410. 

  1411.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1412.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1413.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1414.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1415.         else:

  1416.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1417. 

  1418.         pFeatures = patchcanvas.features_t()

  1419.         pFeatures.group_info   = False

  1420.         pFeatures.group_rename = False

  1421.         pFeatures.port_info    = False

  1422.         pFeatures.port_rename  = False

  1423.         pFeatures.handle_group_pos = False

  1424. 

  1425.         patchcanvas.setOptions(pOptions)

  1426.         patchcanvas.setFeatures(pFeatures)

  1427.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1428. 

  1429.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1430. 

  1431.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1432.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1433.             self.fCanvasHeight = int(tryCanvasSize[1])

  1434.         else:

  1435.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1436.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1437. 

  1438.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1439.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1440.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1441. 

  1442.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1443.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1444. 

  1445.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1446.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1447. 

  1448.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1449.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1450.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1451. 

  1452.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1453.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1454. 

  1455.         else:

  1456.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1457. 

  1458.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1459.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1460.         else:

  1461.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1462. 

  1463.     def updateCanvasInitialPos(self):

  1464.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1465.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1466.         patchcanvas.setInitialPos(x, y)

  1467. 

  1468.     def updateMiniCanvasLater(self):

  1469.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1470. 

  1471.     # --------------------------------------------------------------------------------------------------------

  1472.     # Canvas (menu actions)

  1473. 

  1474.     @pyqtSlot()

  1475.     def slot_canvasShowInternal(self):

  1476.         self.fExternalPatchbay = False

  1477.         self.ui.act_canvas_show_internal.blockSignals(True)

  1478.         self.ui.act_canvas_show_external.blockSignals(True)

  1479.         self.ui.act_canvas_show_internal.setChecked(True)

  1480.         self.ui.act_canvas_show_external.setChecked(False)

  1481.         self.ui.act_canvas_show_internal.blockSignals(False)

  1482.         self.ui.act_canvas_show_external.blockSignals(False)

  1483.         self.slot_canvasRefresh()

  1484. 

  1485.     @pyqtSlot()

  1486.     def slot_canvasShowExternal(self):

  1487.         self.fExternalPatchbay = True

  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(False)

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

  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_canvasArrange(self):

  1498.         patchcanvas.arrange()

  1499. 

  1500.     @pyqtSlot()

  1501.     def slot_canvasRefresh(self):

  1502.         patchcanvas.clear()

  1503. 

  1504.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1505.             return

  1506. 

  1507.         if self.host.is_engine_running():

  1508.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1509. 

  1510.         self.updateMiniCanvasLater()

  1511. 

  1512.     @pyqtSlot()

  1513.     def slot_canvasZoomFit(self):

  1514.         self.scene.zoom_fit()

  1515. 

  1516.     @pyqtSlot()

  1517.     def slot_canvasZoomIn(self):

  1518.         self.scene.zoom_in()

  1519. 

  1520.     @pyqtSlot()

  1521.     def slot_canvasZoomOut(self):

  1522.         self.scene.zoom_out()

  1523. 

  1524.     @pyqtSlot()

  1525.     def slot_canvasZoomReset(self):

  1526.         self.scene.zoom_reset()

  1527. 

  1528.     @pyqtSlot()

  1529.     def slot_canvasSaveImage(self):

  1530.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1531. 

  1532.         # FIXME use ok value, test if it works as expected

  1533.         if not newPath:

  1534.             return

  1535. 

  1536.         self.scene.clearSelection()

  1537. 

  1538.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1539.             imgFormat = "JPG"

  1540.         elif newPath.lower().endswith((".png",)):

  1541.             imgFormat = "PNG"

  1542.         else:

  1543.             # File-dialog may not auto-add the extension

  1544.             imgFormat = "PNG"

  1545.             newPath  += ".png"

  1546. 

  1547.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1548.         painter = QPainter(self.fExportImage)

  1549.         painter.save()

  1550.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1551.         painter.setRenderHint(QPainter.TextAntialiasing)

  1552.         self.scene.render(painter)

  1553.         self.fExportImage.save(newPath, imgFormat, 100)

  1554.         painter.restore()

  1555. 

  1556.     # --------------------------------------------------------------------------------------------------------

  1557.     # Canvas (canvas callbacks)

  1558. 

  1559.     @pyqtSlot()

  1560.     def slot_canvasSelectionChanged(self):

  1561.         self.updateMiniCanvasLater()

  1562. 

  1563.     @pyqtSlot(float)

  1564.     def slot_canvasScaleChanged(self, scale):

  1565.         self.ui.miniCanvasPreview.setViewScale(scale)

  1566. 

  1567.     @pyqtSlot(list)

  1568.     def slot_canvasPluginSelected(self, pluginList):

  1569.         self.ui.keyboard.allNotesOff(False)

  1570.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1571.         self.fSelectedPlugins = pluginList

  1572. 

  1573.     # --------------------------------------------------------------------------------------------------------

  1574.     # Canvas (host callbacks)

  1575. 

  1576.     @pyqtSlot(int, int, int, str)

  1577.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1578.         pcSplit = patchcanvas.SPLIT_UNDEF

  1579.         pcIcon  = patchcanvas.ICON_APPLICATION

  1580. 

  1581.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1582.             pcIcon = patchcanvas.ICON_PLUGIN

  1583.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1584.             pcIcon = patchcanvas.ICON_HARDWARE

  1585.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1586.             pass

  1587.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1588.             pcIcon = patchcanvas.ICON_DISTRHO

  1589.         elif clientIcon == PATCHBAY_ICON_FILE:

  1590.             pcIcon = patchcanvas.ICON_FILE

  1591. 

  1592.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1593. 

  1594.         self.updateMiniCanvasLater()

  1595. 

  1596.         if pluginId < 0:

  1597.             return

  1598.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1599.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1600.             return

  1601. 

  1602.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1603.             hasCustomUI = False

  1604.             hasInlineDisplay = False

  1605.         else:

  1606.             hints = self.host.get_plugin_info(pluginId)['hints']

  1607.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1608.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1609. 

  1610.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1611. 

  1612.     @pyqtSlot(int)

  1613.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1614.         patchcanvas.removeGroup(clientId)

  1615.         self.updateMiniCanvasLater()

  1616. 

  1617.     @pyqtSlot(int, str)

  1618.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1619.         patchcanvas.renameGroup(clientId, newClientName)

  1620.         self.updateMiniCanvasLater()

  1621. 

  1622.     @pyqtSlot(int, int, int)

  1623.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1624.         pcIcon = patchcanvas.ICON_APPLICATION

  1625. 

  1626.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1627.             pcIcon = patchcanvas.ICON_PLUGIN

  1628.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1629.             pcIcon = patchcanvas.ICON_HARDWARE

  1630.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1631.             pass

  1632.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1633.             pcIcon = patchcanvas.ICON_DISTRHO

  1634.         elif clientIcon == PATCHBAY_ICON_FILE:

  1635.             pcIcon = patchcanvas.ICON_FILE

  1636. 

  1637.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1638.         self.updateMiniCanvasLater()

  1639. 

  1640.         if pluginId < 0:

  1641.             return

  1642.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1643.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1644.             return

  1645. 

  1646.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1647.             hasCustomUI = False

  1648.             hasInlineDisplay = False

  1649.         else:

  1650.             hints = self.host.get_plugin_info(pluginId)['hints']

  1651.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1652.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1653. 

  1654.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1655. 

  1656.     @pyqtSlot(int, int, int, int, int)

  1657.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1658.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1659. 

  1660.     @pyqtSlot(int, int, int, int, str)

  1661.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1662.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1663.             portMode = patchcanvas.PORT_MODE_INPUT

  1664.         else:

  1665.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1666. 

  1667.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1668.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1669.             isAlternate = False

  1670.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1671.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1672.             isAlternate = False

  1673.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1674.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1675.             isAlternate = False

  1676.         else:

  1677.             portType    = patchcanvas.PORT_TYPE_NULL

  1678.             isAlternate = False

  1679. 

  1680.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1681.         self.updateMiniCanvasLater()

  1682. 

  1683.     @pyqtSlot(int, int)

  1684.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1685.         patchcanvas.removePort(groupId, portId)

  1686.         self.updateMiniCanvasLater()

  1687. 

  1688.     @pyqtSlot(int, int, int, int, str)

  1689.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1690.         patchcanvas.renamePort(groupId, portId, newPortName)

  1691.         self.updateMiniCanvasLater()

  1692. 

  1693.     @pyqtSlot(int, int, int, str)

  1694.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1695.         # TODO

  1696.         pass

  1697. 

  1698.     @pyqtSlot(int, int)

  1699.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1700.         # TODO

  1701.         pass

  1702. 

  1703.     @pyqtSlot(int, int, int, str)

  1704.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1705.         # TODO

  1706.         pass

  1707. 

  1708.     @pyqtSlot(int, int, int, int, int)

  1709.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1710.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1711.         self.updateMiniCanvasLater()

  1712. 

  1713.     @pyqtSlot(int, int, int)

  1714.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1715.         patchcanvas.disconnectPorts(connectionId)

  1716.         self.updateMiniCanvasLater()

  1717. 

  1718.     # --------------------------------------------------------------------------------------------------------

  1719.     # Settings

  1720. 

  1721.     def saveSettings(self):

  1722.         settings = QSafeSettings()

  1723. 

  1724.         settings.setValue("Geometry", self.saveGeometry())

  1725.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1726. 

  1727.         if not self.host.isControl:

  1728.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1729. 

  1730.         diskFolders = []

  1731. 

  1732.         for i in range(self.ui.cb_disk.count()):

  1733.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1734. 

  1735.         settings.setValue("DiskFolders", diskFolders)

  1736.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1737. 

  1738.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1739.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1740.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1741.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1742. 

  1743.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1744.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1745. 

  1746.         return settings

  1747. 

  1748.     def loadSettings(self, firstTime):

  1749.         settings = QSafeSettings()

  1750. 

  1751.         if firstTime:

  1752.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1753.             if not geometry.isNull():

  1754.                 self.restoreGeometry(geometry)

  1755. 

  1756.             showToolbar = settings.value("ShowToolbar", True, bool)

  1757.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1758.             self.ui.toolBar.setEnabled(showToolbar)

  1759.             self.ui.toolBar.setVisible(showToolbar)

  1760. 

  1761.             #if settings.contains("SplitterState"):

  1762.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1763.             #else:

  1764.                 #self.ui.splitter.setSizes([210, 99999])

  1765. 

  1766.             showSidePanel = settings.value("ShowSidePanel", True, bool) and not self.host.isControl

  1767.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1768.             self.slot_showSidePanel(showSidePanel)

  1769. 

  1770.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1771. 

  1772.             self.ui.cb_disk.setItemData(0, HOME)

  1773. 

  1774.             for i in range(len(diskFolders)):

  1775.                 if i == 0: continue

  1776.                 folder = diskFolders[i]

  1777.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1778. 

  1779.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1780.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1781. 

  1782.             showMeters = settings.value("ShowMeters", True, bool)

  1783.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1784.             self.ui.peak_in.setVisible(showMeters)

  1785.             self.ui.peak_out.setVisible(showMeters)

  1786. 

  1787.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1788.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1789.             self.ui.scrollArea.setVisible(showKeyboard)

  1790. 

  1791.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1792.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1793. 

  1794.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1795. 

  1796.         # TODO - complete this

  1797. 

  1798.         self.fSavedSettings = {

  1799.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1800.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1801.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1802.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1803.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1804.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1805.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1806.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1807.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1808.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1809.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1810.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1811.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1812.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1813.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1814.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1815.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1816.         }

  1817. 

  1818.         if not self.host.isControl:

  1819.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1820.         else:

  1821.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1822. 

  1823.         settings2 = QSafeSettings("falkTX", "Carla2")

  1824. 

  1825.         if self.host.experimental:

  1826.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1827.             self.ui.act_plugin_add_jack.setVisible(visible)

  1828.         else:

  1829.             self.ui.act_plugin_add_jack.setVisible(False)

  1830. 

  1831.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1832. 

  1833.         setEngineSettings(self.host)

  1834.         self.restartTimersIfNeeded()

  1835. 

  1836.         return settings

  1837. 

  1838.     # --------------------------------------------------------------------------------------------------------

  1839.     # Settings (helpers)

  1840. 

  1841.     def enableTransport(self, enabled):

  1842.         self.ui.group_transport_controls.setEnabled(enabled)

  1843.         self.ui.group_transport_settings.setEnabled(enabled)

  1844. 

  1845.     @pyqtSlot()

  1846.     def slot_restoreCanvasScrollbarValues(self):

  1847.         settings = QSafeSettings()

  1848.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1849.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1850.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  1851.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  1852. 

  1853.     # --------------------------------------------------------------------------------------------------------

  1854.     # Settings (menu actions)

  1855. 

  1856.     @pyqtSlot(bool)

  1857.     def slot_showSidePanel(self, yesNo):

  1858.         self.ui.dockWidget.setEnabled(yesNo)

  1859.         self.ui.dockWidget.setVisible(yesNo)

  1860. 

  1861.     @pyqtSlot(bool)

  1862.     def slot_showToolbar(self, yesNo):

  1863.         self.ui.toolBar.setEnabled(yesNo)

  1864.         self.ui.toolBar.setVisible(yesNo)

  1865. 

  1866.     @pyqtSlot(bool)

  1867.     def slot_showCanvasMeters(self, yesNo):

  1868.         self.ui.peak_in.setVisible(yesNo)

  1869.         self.ui.peak_out.setVisible(yesNo)

  1870.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1871. 

  1872.     @pyqtSlot(bool)

  1873.     def slot_showCanvasKeyboard(self, yesNo):

  1874.         self.ui.scrollArea.setVisible(yesNo)

  1875.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1876. 

  1877.     @pyqtSlot()

  1878.     def slot_configureCarla(self):

  1879.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1880.         if not dialog.exec_():

  1881.             return

  1882. 

  1883.         self.loadSettings(False)

  1884. 

  1885.         patchcanvas.clear()

  1886. 

  1887.         self.setupCanvas()

  1888.         self.slot_miniCanvasCheckAll()

  1889. 

  1890.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1891.             pass

  1892.         elif self.host.is_engine_running():

  1893.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1894. 

  1895.     # --------------------------------------------------------------------------------------------------------

  1896.     # About (menu actions)

  1897. 

  1898.     @pyqtSlot()

  1899.     def slot_aboutCarla(self):

  1900.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1901. 

  1902.     @pyqtSlot()

  1903.     def slot_aboutJuce(self):

  1904.         JuceAboutW(self.fParentOrSelf).exec_()

  1905. 

  1906.     @pyqtSlot()

  1907.     def slot_aboutQt(self):

  1908.         QApplication.instance().aboutQt()

  1909. 

  1910.     # --------------------------------------------------------------------------------------------------------

  1911.     # Disk (menu actions)

  1912. 

  1913.     @pyqtSlot(int)

  1914.     def slot_diskFolderChanged(self, index):

  1915.         if index < 0:

  1916.             return

  1917.         elif index == 0:

  1918.             filename = HOME

  1919.             self.ui.b_disk_remove.setEnabled(False)

  1920.         else:

  1921.             filename = self.ui.cb_disk.itemData(index)

  1922.             self.ui.b_disk_remove.setEnabled(True)

  1923. 

  1924.         self.fDirModel.setRootPath(filename)

  1925.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1926. 

  1927.     @pyqtSlot()

  1928.     def slot_diskFolderAdd(self):

  1929.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1930. 

  1931.         if newPath:

  1932.             if newPath[-1] == os.sep:

  1933.                 newPath = newPath[:-1]

  1934.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1935.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1936.             self.ui.b_disk_remove.setEnabled(True)

  1937. 

  1938.     @pyqtSlot()

  1939.     def slot_diskFolderRemove(self):

  1940.         index = self.ui.cb_disk.currentIndex()

  1941. 

  1942.         if index <= 0:

  1943.             return

  1944. 

  1945.         self.ui.cb_disk.removeItem(index)

  1946. 

  1947.         if self.ui.cb_disk.currentIndex() == 0:

  1948.             self.ui.b_disk_remove.setEnabled(False)

  1949. 

  1950.     @pyqtSlot(QModelIndex)

  1951.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1952.         filename = self.fDirModel.filePath(modelIndex)

  1953. 

  1954.         if not self.ui.listWidget.isDragUrlValid(filename):

  1955.             return

  1956. 

  1957.         if not self.host.load_file(filename):

  1958.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1959.                              self.tr("Failed to load file"),

  1960.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1961. 

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

  1963.     # Transport

  1964. 

  1965.     def refreshTransport(self, forced = False):

  1966.         if not self.ui.l_transport_time.isVisible():

  1967.             return

  1968.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1969.             return

  1970. 

  1971.         timeInfo = self.host.get_transport_info()

  1972.         playing  = timeInfo['playing']

  1973.         frame    = timeInfo['frame']

  1974.         bpm      = timeInfo['bpm']

  1975. 

  1976.         if playing != self.fLastTransportState or forced:

  1977.             if playing:

  1978.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1979.                 self.ui.b_transport_play.setChecked(True)

  1980.                 self.ui.b_transport_play.setIcon(icon)

  1981.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1982.             else:

  1983.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1984.                 self.ui.b_transport_play.setChecked(False)

  1985.                 self.ui.b_transport_play.setIcon(icon)

  1986.                 #self.ui.b_play.setText(self.tr("&Play"))

  1987. 

  1988.             self.fLastTransportState = playing

  1989. 

  1990.         if frame != self.fLastTransportFrame or forced:

  1991.             self.fLastTransportFrame = frame

  1992. 

  1993.             time = frame / self.fSampleRate

  1994.             secs =  time % 60

  1995.             mins = (time / 60) % 60

  1996.             hrs  = (time / 3600) % 60

  1997.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1998. 

  1999.             frame1 =  frame % 1000

  2000.             frame2 = (frame / 1000) % 1000

  2001.             frame3 = (frame / 1000000) % 1000

  2002.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2003. 

  2004.             bar  = timeInfo['bar']

  2005.             beat = timeInfo['beat']

  2006.             tick = timeInfo['tick']

  2007.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2008. 

  2009.         if bpm != self.fLastTransportBPM or forced:

  2010.             self.fLastTransportBPM = bpm

  2011. 

  2012.             if bpm > 0.0:

  2013.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2014.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2015.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2016.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2017.             else:

  2018.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2019. 

  2020.     # --------------------------------------------------------------------------------------------------------

  2021.     # Transport (menu actions)

  2022. 

  2023.     @pyqtSlot(bool)

  2024.     def slot_transportPlayPause(self, toggled):

  2025.         if self.host.isPlugin or not self.host.is_engine_running():

  2026.             return

  2027. 

  2028.         if toggled:

  2029.             self.host.transport_play()

  2030.         else:

  2031.             self.host.transport_pause()

  2032. 

  2033.         self.refreshTransport()

  2034. 

  2035.     @pyqtSlot()

  2036.     def slot_transportStop(self):

  2037.         if self.host.isPlugin or not self.host.is_engine_running():

  2038.             return

  2039. 

  2040.         self.host.transport_pause()

  2041.         self.host.transport_relocate(0)

  2042. 

  2043.         self.refreshTransport()

  2044. 

  2045.     @pyqtSlot()

  2046.     def slot_transportBackwards(self):

  2047.         if self.host.isPlugin or not self.host.is_engine_running():

  2048.             return

  2049. 

  2050.         newFrame = self.host.get_current_transport_frame() - 100000

  2051. 

  2052.         if newFrame < 0:

  2053.             newFrame = 0

  2054. 

  2055.         self.host.transport_relocate(newFrame)

  2056. 

  2057.     @pyqtSlot(float)

  2058.     def slot_transportBpmChanged(self, newValue):

  2059.         self.host.transport_bpm(newValue)

  2060. 

  2061.     @pyqtSlot()

  2062.     def slot_transportForwards(self):

  2063.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2064.             return

  2065. 

  2066.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2067.         self.host.transport_relocate(newFrame)

  2068. 

  2069.     @pyqtSlot(bool)

  2070.     def slot_transportJackEnabled(self, clicked):

  2071.         if not self.host.is_engine_running():

  2072.             return

  2073.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2074.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2075.                                     self.host.transportMode,

  2076.                                     self.host.transportExtra)

  2077. 

  2078.     @pyqtSlot(bool)

  2079.     def slot_transportLinkEnabled(self, clicked):

  2080.         if not self.host.is_engine_running():

  2081.             return

  2082.         extra = ":link:" if clicked else ""

  2083.         self.host.transportExtra = extra

  2084.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2085.                                     self.host.transportMode,

  2086.                                     self.host.transportExtra)

  2087. 

  2088.     # --------------------------------------------------------------------------------------------------------

  2089.     # Other

  2090. 

  2091.     @pyqtSlot(bool)

  2092.     def slot_xrunClear(self):

  2093.         self.host.clear_engine_xruns()

  2094. 

  2095.     # --------------------------------------------------------------------------------------------------------

  2096.     # Canvas scrollbars

  2097. 

  2098.     @pyqtSlot(int)

  2099.     def slot_horizontalScrollBarChanged(self, value):

  2100.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2101.         if maximum == 0:

  2102.             xp = 0

  2103.         else:

  2104.             xp = float(value) / maximum

  2105.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2106.         self.updateCanvasInitialPos()

  2107. 

  2108.     @pyqtSlot(int)

  2109.     def slot_verticalScrollBarChanged(self, value):

  2110.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2111.         if maximum == 0:

  2112.             yp = 0

  2113.         else:

  2114.             yp = float(value) / maximum

  2115.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2116.         self.updateCanvasInitialPos()

  2117. 

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

  2119.     # Canvas keyboard

  2120. 

  2121.     @pyqtSlot(int)

  2122.     def slot_noteOn(self, note):

  2123.         for pluginId in self.fSelectedPlugins:

  2124.             self.host.send_midi_note(pluginId, 0, note, 100)

  2125. 

  2126.             pedit = self.getPluginEditDialog(pluginId)

  2127.             pedit.noteOn(0, note, 100)

  2128. 

  2129.     @pyqtSlot(int)

  2130.     def slot_noteOff(self, note):

  2131.         for pluginId in self.fSelectedPlugins:

  2132.             self.host.send_midi_note(pluginId, 0, note, 0)

  2133. 

  2134.             pedit = self.getPluginEditDialog(pluginId)

  2135.             pedit.noteOff(0, note)

  2136. 

  2137.     # --------------------------------------------------------------------------------------------------------

  2138.     # Canvas keyboard (host callbacks)

  2139. 

  2140.     @pyqtSlot(int, int, int, int)

  2141.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2142.         if pluginId in self.fSelectedPlugins:

  2143.             self.ui.keyboard.sendNoteOn(note, False)

  2144. 

  2145.     @pyqtSlot(int, int, int)

  2146.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2147.         if pluginId in self.fSelectedPlugins:

  2148.             self.ui.keyboard.sendNoteOff(note, False)

  2149. 

  2150.     # --------------------------------------------------------------------------------------------------------

  2151. 

  2152.     @pyqtSlot(int)

  2153.     def slot_handleUpdateCallback(self, pluginId):

  2154.         pitem = self.getPluginItem(pluginId)

  2155. 

  2156.         if pitem is None:

  2157.             return

  2158. 

  2159.         wasCompacted = pitem.isCompacted()

  2160.         isCompacted  = wasCompacted

  2161. 

  2162.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2163.         if not check:

  2164.             return

  2165.         isCompacted = bool(check == "true")

  2166. 

  2167.         if wasCompacted == isCompacted:

  2168.             return

  2169. 

  2170.         pitem.recreateWidget(True)

  2171. 

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

  2173.     # MiniCanvas stuff

  2174. 

  2175.     @pyqtSlot()

  2176.     def slot_miniCanvasCheckAll(self):

  2177.         self.slot_miniCanvasCheckSize()

  2178.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2179.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2180. 

  2181.     @pyqtSlot()

  2182.     def slot_miniCanvasCheckSize(self):

  2183.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2184.             return

  2185. 

  2186.         currentIndex = self.ui.tabWidget.currentIndex()

  2187. 

  2188.         if currentIndex == 1:

  2189.             width  = self.ui.graphicsView.width()

  2190.             height = self.ui.graphicsView.height()

  2191.         else:

  2192.             self.ui.tabWidget.blockSignals(True)

  2193.             self.ui.tabWidget.setCurrentIndex(1)

  2194.             width  = self.ui.graphicsView.width()

  2195.             height = self.ui.graphicsView.height()

  2196.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2197.             self.ui.tabWidget.blockSignals(False)

  2198. 

  2199.         self.scene.updateLimits()

  2200. 

  2201.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2202. 

  2203.     @pyqtSlot(float, float)

  2204.     def slot_miniCanvasMoved(self, xp, yp):

  2205.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2206.         vsb = self.ui.graphicsView.verticalScrollBar()

  2207.         hsb.setValue(xp * hsb.maximum())

  2208.         vsb.setValue(yp * vsb.maximum())

  2209.         self.updateCanvasInitialPos()

  2210. 

  2211.     # --------------------------------------------------------------------------------------------------------

  2212.     # Logs autoscroll, save and clear

  2213. 

  2214.     @pyqtSlot(int)

  2215.     def slot_toggleLogAutoscroll(self, checkState):

  2216.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2217.         if self.autoscrollOnNewLog:

  2218.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2219. 

  2220.     @pyqtSlot(int)

  2221.     def slot_logSliderMoved(self, slider_pos):

  2222.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2223.             self.lastLogSliderPos = slider_pos

  2224.         else:

  2225.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2226. 

  2227.     @pyqtSlot()

  2228.     def slot_logButtonsState(self, enabled=True):

  2229.         self.ui.logs_clear.setEnabled(enabled)

  2230.         self.ui.logs_save.setEnabled(enabled)

  2231. 

  2232.     @pyqtSlot()

  2233.     def slot_logSave(self):

  2234.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2235.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2236. 

  2237.         if not filename:

  2238.             return

  2239. 

  2240.         try:

  2241.             with open(filename, "w") as logfile:

  2242.                 logfile.write(self.ui.text_logs.toPlainText())

  2243.                 logfile.close()

  2244.         except:

  2245.             return

  2246. 

  2247.     @pyqtSlot()

  2248.     def slot_logClear(self):

  2249.         self.ui.text_logs.clear()

  2250.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2251.         self.slot_logButtonsState(False)

  2252. 

  2253.     # --------------------------------------------------------------------------------------------------------

  2254.     # Timers

  2255. 

  2256.     def startTimers(self):

  2257.         if self.fIdleTimerFast == 0:

  2258.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2259. 

  2260.         if self.fIdleTimerSlow == 0:

  2261.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2262. 

  2263.     def restartTimersIfNeeded(self):

  2264.         if self.fIdleTimerFast != 0:

  2265.             self.killTimer(self.fIdleTimerFast)

  2266.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2267. 

  2268.         if self.fIdleTimerSlow != 0:

  2269.             self.killTimer(self.fIdleTimerSlow)

  2270.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2271. 

  2272.     def killTimers(self):

  2273.         if self.fIdleTimerFast != 0:

  2274.             self.killTimer(self.fIdleTimerFast)

  2275.             self.fIdleTimerFast = 0

  2276. 

  2277.         if self.fIdleTimerSlow != 0:

  2278.             self.killTimer(self.fIdleTimerSlow)

  2279.             self.fIdleTimerSlow = 0

  2280. 

  2281.     # --------------------------------------------------------------------------------------------------------

  2282.     # Misc

  2283. 

  2284.     @pyqtSlot(int)

  2285.     def slot_tabChanged(self, index):

  2286.         if index != 1:

  2287.             return

  2288. 

  2289.         self.ui.graphicsView.setFocus()

  2290. 

  2291.     @pyqtSlot(int)

  2292.     def slot_handleReloadAllCallback(self, pluginId):

  2293.         if pluginId >= self.fPluginCount:

  2294.             return

  2295. 

  2296.         pitem = self.fPluginList[pluginId]

  2297.         if pitem is None:

  2298.             return

  2299. 

  2300.         pitem.recreateWidget()

  2301. 

  2302.     # --------------------------------------------------------------------------------------------------------

  2303. 

  2304.     @pyqtSlot(int, int, str)

  2305.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2306.         if opcode == NSM_CALLBACK_INIT:

  2307.             return

  2308. 

  2309.         # Error

  2310.         elif opcode == NSM_CALLBACK_ERROR:

  2311.             pass

  2312. 

  2313.         # Reply

  2314.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2315.             self.fFirstEngineInit    = False

  2316.             self.fSessionManagerName = valueStr

  2317.             self.setProperWindowTitle()

  2318. 

  2319.         # Open

  2320.         elif opcode == NSM_CALLBACK_OPEN:

  2321.             self.fClientName      = os.path.basename(valueStr)

  2322.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2323.             self.setProperWindowTitle()

  2324. 

  2325.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2326.             self.slot_engineStop(True)

  2327.             return

  2328. 

  2329.         # Save

  2330.         elif opcode == NSM_CALLBACK_SAVE:

  2331.             self.saveProjectNow()

  2332. 

  2333.         # Session is Loaded

  2334.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2335.             pass

  2336. 

  2337.         # Show Optional Gui

  2338.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2339.             self.show()

  2340. 

  2341.         # Hide Optional Gui

  2342.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2343.             self.hide()

  2344. 

  2345.         self.host.nsm_ready(opcode)

  2346. 

  2347.     # --------------------------------------------------------------------------------------------------------

  2348. 

  2349.     def fixLogText(self, text):

  2350.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2351. 

  2352.     @pyqtSlot(int, int, int, int, float, str)

  2353.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2354.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2355. 

  2356.     @pyqtSlot(str)

  2357.     def slot_handleInfoCallback(self, info):

  2358.         QMessageBox.information(self, "Information", info)

  2359. 

  2360.     @pyqtSlot(str)

  2361.     def slot_handleErrorCallback(self, error):

  2362.         QMessageBox.critical(self, "Error", error)

  2363. 

  2364.     @pyqtSlot()

  2365.     def slot_handleQuitCallback(self):

  2366.         self.fIsProjectLoading = False

  2367.         self.killTimers()

  2368.         self.removeAllPlugins()

  2369.         self.projectLoadingFinished()

  2370. 

  2371.     @pyqtSlot(int)

  2372.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2373.         # FIXME

  2374.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2375.             patchcanvas.redrawPluginGroup(pluginId)

  2376. 

  2377.     # --------------------------------------------------------------------------------------------------------

  2378. 

  2379.     @pyqtSlot()

  2380.     def slot_handleSIGUSR1(self):

  2381.         print("Got SIGUSR1 -> Saving project now")

  2382.         self.slot_fileSave()

  2383. 

  2384.     @pyqtSlot()

  2385.     def slot_handleSIGTERM(self):

  2386.         print("Got SIGTERM -> Closing now")

  2387.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2388.         self.slot_engineStop(True)

  2389. 

  2390.     # --------------------------------------------------------------------------------------------------------

  2391.     # Internal stuff

  2392. 

  2393.     def getExtraPtr(self, plugin):

  2394.         ptype = plugin['type']

  2395. 

  2396.         if ptype == PLUGIN_LADSPA:

  2397.             uniqueId = plugin['uniqueId']

  2398. 

  2399.             self.maybeLoadRDFs()

  2400. 

  2401.             for rdfItem in self.fLadspaRdfList:

  2402.                 if rdfItem.UniqueID == uniqueId:

  2403.                     return pointer(rdfItem)

  2404. 

  2405.         elif ptype == PLUGIN_SF2:

  2406.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2407.                 return self._true

  2408. 

  2409.         return None

  2410. 

  2411.     def maybeLoadRDFs(self):

  2412.         if not self.fLadspaRdfNeedsUpdate:

  2413.             return

  2414. 

  2415.         self.fLadspaRdfNeedsUpdate = False

  2416.         self.fLadspaRdfList = []

  2417. 

  2418.         if not haveLRDF:

  2419.             return

  2420. 

  2421.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2422.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2423. 

  2424.         if os.path.exists(frLadspaFile):

  2425.             frLadspa = open(frLadspaFile, 'r')

  2426. 

  2427.             try:

  2428.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2429.             except:

  2430.                 pass

  2431. 

  2432.             frLadspa.close()

  2433. 

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

  2435. 

  2436.     def getPluginCount(self):

  2437.         return self.fPluginCount

  2438. 

  2439.     def getPluginItem(self, pluginId):

  2440.         if pluginId >= self.fPluginCount:

  2441.             return None

  2442. 

  2443.         pitem = self.fPluginList[pluginId]

  2444.         if pitem is None:

  2445.             return None

  2446.         #if False:

  2447.             #return CarlaRackItem(self, 0, False)

  2448. 

  2449.         return pitem

  2450. 

  2451.     def getPluginEditDialog(self, pluginId):

  2452.         if pluginId >= self.fPluginCount:

  2453.             return None

  2454. 

  2455.         pitem = self.fPluginList[pluginId]

  2456.         if pitem is None:

  2457.             return None

  2458.         if False:

  2459.             return PluginEdit(self, self.host, 0)

  2460. 

  2461.         return pitem.getEditDialog()

  2462. 

  2463.     def getPluginSlotWidget(self, pluginId):

  2464.         if pluginId >= self.fPluginCount:

  2465.             return None

  2466. 

  2467.         pitem = self.fPluginList[pluginId]

  2468.         if pitem is None:

  2469.             return None

  2470.         #if False:

  2471.             #return AbstractPluginSlot()

  2472. 

  2473.         return pitem.getWidget()

  2474. 

  2475.     # --------------------------------------------------------------------------------------------------------

  2476. 

  2477.     def waitForPendingEvents(self):

  2478.         pass

  2479. 

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

  2481.     # show/hide event

  2482. 

  2483.     def showEvent(self, event):

  2484.         self.getAndRefreshRuntimeInfo()

  2485.         self.refreshTransport(True)

  2486.         QMainWindow.showEvent(self, event)

  2487. 

  2488.         if QT_VERSION >= 0x50600:

  2489.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2490.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2491. 

  2492.         # set our gui as parent for all plugins UIs

  2493.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2494.             if MACOS:

  2495.                 nsViewPtr = int(self.winId())

  2496.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2497.             else:

  2498.                 winIdStr = "%x" % int(self.winId())

  2499.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2500. 

  2501.     def hideEvent(self, event):

  2502.         # disable parent

  2503.         if not (self.host.isControl or self.host.isPlugin):

  2504.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2505. 

  2506.         QMainWindow.hideEvent(self, event)

  2507. 

  2508.     # --------------------------------------------------------------------------------------------------------

  2509.     # resize event

  2510. 

  2511.     def resizeEvent(self, event):

  2512.         QMainWindow.resizeEvent(self, event)

  2513. 

  2514.         if self.fWithCanvas:

  2515.             self.slot_miniCanvasCheckSize()

  2516. 

  2517.     # --------------------------------------------------------------------------------------------------------

  2518.     # timer event

  2519. 

  2520.     def refreshRuntimeInfo(self, load, xruns):

  2521.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2522.         txt2 = "" if (xruns == 1) else "s"

  2523.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2524.         self.ui.pb_dsp_load.setValue(int(load))

  2525. 

  2526.     def getAndRefreshRuntimeInfo(self):

  2527.         if not self.ui.pb_dsp_load.isVisible():

  2528.             return

  2529.         if not self.host.is_engine_running():

  2530.             return

  2531.         info = self.host.get_runtime_engine_info()

  2532.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2533. 

  2534.     def idleFast(self):

  2535.         self.host.engine_idle()

  2536.         self.refreshTransport()

  2537. 

  2538.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2539.             return

  2540. 

  2541.         for pitem in self.fPluginList:

  2542.             if pitem is None:

  2543.                 break

  2544. 

  2545.             pitem.getWidget().idleFast()

  2546. 

  2547.         for pluginId in self.fSelectedPlugins:

  2548.             self.fPeaksCleared = False

  2549.             if self.ui.peak_in.isVisible():

  2550.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2551.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2552.             if self.ui.peak_out.isVisible():

  2553.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2554.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2555.             return

  2556. 

  2557.         if self.fPeaksCleared:

  2558.             return

  2559. 

  2560.         self.fPeaksCleared = True

  2561.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2562.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2563.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2564.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2565. 

  2566.     def idleSlow(self):

  2567.         self.getAndRefreshRuntimeInfo()

  2568. 

  2569.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2570.             return

  2571. 

  2572.         for pitem in self.fPluginList:

  2573.             if pitem is None:

  2574.                 break

  2575. 

  2576.             pitem.getWidget().idleSlow()

  2577. 

  2578.     def timerEvent(self, event):

  2579.         if event.timerId() == self.fIdleTimerFast:

  2580.             self.idleFast()

  2581. 

  2582.         elif event.timerId() == self.fIdleTimerSlow:

  2583.             self.idleSlow()

  2584. 

  2585.         QMainWindow.timerEvent(self, event)

  2586. 

  2587.     # --------------------------------------------------------------------------------------------------------

  2588.     # color/style change event

  2589. 

  2590.     def changeEvent(self, event):

  2591.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2592.             self.updateStyle()

  2593.         QMainWindow.changeEvent(self, event)

  2594. 

  2595.     def updateStyle(self):

  2596.         # Rack padding images setup

  2597.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2598.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2599. 

  2600.         min_value = 0.07

  2601. 

  2602.         if PYQT_VERSION >= 0x50600:

  2603.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2604.         else:

  2605.             value_fix = 1.5

  2606. 

  2607.         rack_pal = self.ui.rack.palette()

  2608.         bg_color = rack_pal.window().color()

  2609.         fg_color = rack_pal.text().color()

  2610.         bg_value = 1.0 - bg_color.blackF()

  2611.         if bg_value != 0.0 and bg_value < min_value:

  2612.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2613.         else:

  2614.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2615. 

  2616.         painter = QPainter()

  2617.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2618. 

  2619.         painter.begin(rack_imgL)

  2620.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2621.         painter.setBrush(pad_color)

  2622.         painter.drawRect(fillRect)

  2623.         painter.end()

  2624.         rack_pixmapL = QPixmap(rack_imgL)

  2625.         self.imgL_palette = QPalette()

  2626.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2627.         self.ui.pad_left.setPalette(self.imgL_palette)

  2628.         self.ui.pad_left.setAutoFillBackground(True)

  2629. 

  2630.         painter.begin(rack_imgR)

  2631.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2632.         painter.setBrush(pad_color)

  2633.         painter.drawRect(fillRect)

  2634.         painter.end()

  2635.         rack_pixmapR = QPixmap(rack_imgR)

  2636.         self.imgR_palette = QPalette()

  2637.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2638.         self.ui.pad_right.setPalette(self.imgR_palette)

  2639.         self.ui.pad_right.setAutoFillBackground(True)

  2640. 

  2641.         # qt's rgba is actually argb, so convert that

  2642.         bg_color_value = bg_color.rgba()

  2643.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2644. 

  2645.         fg_color_value = fg_color.rgba()

  2646.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2647. 

  2648.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2649.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2650. 

  2651.     # --------------------------------------------------------------------------------------------------------

  2652.     # paint event

  2653. 

  2654.     #def paintEvent(self, event):

  2655.         #QMainWindow.paintEvent(self, event)

  2656. 

  2657.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2658.             #return

  2659. 

  2660.         #painter = QPainter(self)

  2661.         #painter.setBrush(QColor(36, 36, 36))

  2662.         #painter.setPen(QColor(62, 62, 62))

  2663.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2664. 

  2665.     # --------------------------------------------------------------------------------------------------------

  2666.     # close event

  2667. 

  2668.     def shouldIgnoreClose(self):

  2669.         if self.host.isControl or self.host.isPlugin:

  2670.             return False

  2671.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2672.             return False

  2673.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2674.             return QMessageBox.question(self, self.tr("Quit"),

  2675.                                               self.tr("Are you sure you want to quit Carla?"),

  2676.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2677.         return False

  2678. 

  2679.     def closeEvent(self, event):

  2680.         if self.shouldIgnoreClose():

  2681.             event.ignore()

  2682.             return

  2683. 

  2684.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2685.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2686.             self.fMacClosingHelper = False

  2687.             event.ignore()

  2688. 

  2689.             for i in reversed(range(self.fPluginCount)):

  2690.                 self.host.show_custom_ui(i, False)

  2691. 

  2692.             QTimer.singleShot(100, self.close)

  2693.             return

  2694. 

  2695.         self.killTimers()

  2696.         self.saveSettings()

  2697. 

  2698.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2699.             if not self.slot_engineStop(True):

  2700.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2701.                 event.ignore()

  2702.                 return

  2703. 

  2704.         QMainWindow.closeEvent(self, event)

  2705. 

  2706. # ------------------------------------------------------------------------------------------------

  2707. # Canvas callback

  2708. 

  2709. def canvasCallback(action, value1, value2, valueStr):

  2710.     host = gCarla.gui.host

  2711. 

  2712.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2713.         return

  2714. 

  2715.     if action == patchcanvas.ACTION_GROUP_INFO:

  2716.         pass

  2717. 

  2718.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2719.         pass

  2720. 

  2721.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2722.         groupId = value1

  2723.         patchcanvas.splitGroup(groupId)

  2724.         gCarla.gui.updateMiniCanvasLater()

  2725. 

  2726.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2727.         groupId = value1

  2728.         patchcanvas.joinGroup(groupId)

  2729.         gCarla.gui.updateMiniCanvasLater()

  2730. 

  2731.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2732.         if gCarla.gui.fIsProjectLoading or not host.is_engine_running():

  2733.             return

  2734.         groupId = value1

  2735.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2736.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  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 = tuple(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_CLIENT_POSITION_CHANGED:

  2879.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  2880.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2881.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2882.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2883.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2884.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2885.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2886.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2887.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2888.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2889.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2890.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2891.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2892.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2893.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2894.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2895.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2896.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2897.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2898.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2899.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2900.         host.EngineStoppedCallback.emit()

  2901.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2902.         host.ProcessModeChangedCallback.emit(value1)

  2903.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2904.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2905.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2906.         host.BufferSizeChangedCallback.emit(value1)

  2907.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2908.         host.SampleRateChangedCallback.emit(valuef)

  2909.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2910.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2911.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2912.         host.ProjectLoadFinishedCallback.emit()

  2913.     elif action == ENGINE_CALLBACK_NSM:

  2914.         host.NSMCallback.emit(value1, value2, valueStr)

  2915.     elif action == ENGINE_CALLBACK_IDLE:

  2916.         QApplication.processEvents()

  2917.     elif action == ENGINE_CALLBACK_INFO:

  2918.         host.InfoCallback.emit(valueStr)

  2919.     elif action == ENGINE_CALLBACK_ERROR:

  2920.         host.ErrorCallback.emit(valueStr)

  2921.     elif action == ENGINE_CALLBACK_QUIT:

  2922.         host.QuitCallback.emit()

  2923.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2924.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2925.     else:

  2926.         print("unhandled action", action)

  2927. 

  2928. # ------------------------------------------------------------------------------------------------------------

  2929. # File callback

  2930. 

  2931. def fileCallback(ptr, action, isDir, title, filter):

  2932.     title  = charPtrToString(title)

  2933.     filter = charPtrToString(filter)

  2934. 

  2935.     if action == FILE_CALLBACK_OPEN:

  2936.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2937.     elif action == FILE_CALLBACK_SAVE:

  2938.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2939.     else:

  2940.         ret, ok = ("", "")

  2941. 

  2942.     # FIXME use ok value, test if it works as expected

  2943.     if not ret:

  2944.         return None

  2945. 

  2946.     # FIXME

  2947.     global fileRet

  2948.     fileRet = c_char_p(ret.encode("utf-8"))

  2949.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2950.     return retval.contents.value

  2951. 

  2952. # ------------------------------------------------------------------------------------------------------------

  2953. # Init host

  2954. 

  2955. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2956.     pathBinaries, pathResources = getPaths(libPrefix)

  2957. 

  2958.     # --------------------------------------------------------------------------------------------------------

  2959.     # Fail if binary dir is not found

  2960. 

  2961.     if not os.path.exists(pathBinaries):

  2962.         if failError:

  2963.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2964.             sys.exit(1)

  2965.         return

  2966. 

  2967.     # --------------------------------------------------------------------------------------------------------

  2968.     # Check if we should open main lib as local or global

  2969. 

  2970.     settings = QSafeSettings("falkTX", "Carla2")

  2971. 

  2972.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  2973. 

  2974.     # --------------------------------------------------------------------------------------------------------

  2975.     # Set Carla library name

  2976. 

  2977.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2978.     libname   = os.path.join(pathBinaries, libname)

  2979.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2980. 

  2981.     # --------------------------------------------------------------------------------------------------------

  2982.     # Print info

  2983. 

  2984.     print("Carla %s started, status:" % VERSION)

  2985.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2986.     print("  Qt version:     %s" % QT_VERSION_STR)

  2987.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2988.     print("  Binary dir:     %s" % pathBinaries)

  2989.     print("  Resources dir:  %s" % pathResources)

  2990. 

  2991.     # --------------------------------------------------------------------------------------------------------

  2992.     # Init host

  2993. 

  2994.     if failError:

  2995.         # no try

  2996.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2997.     else:

  2998.         try:

  2999.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3000.         except:

  3001.             host = CarlaHostQtNull()

  3002. 

  3003.     host.isControl = isControl

  3004.     host.isPlugin  = isPlugin

  3005. 

  3006.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3007.     host.set_file_callback(fileCallback)

  3008. 

  3009.     # If it's a plugin the paths are already set

  3010.     if not isPlugin:

  3011.         host.pathBinaries  = pathBinaries

  3012.         host.pathResources = pathResources

  3013.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3014.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3015. 

  3016.         if not isControl:

  3017.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3018. 

  3019.     # --------------------------------------------------------------------------------------------------------

  3020.     # Init utils

  3021. 

  3022.     gCarla.utils = CarlaUtils(utilsname)

  3023.     gCarla.utils.set_process_name(os.path.basename(initName))

  3024. 

  3025.     try:

  3026.         sys.stdout.flush()

  3027.     except:

  3028.         pass

  3029. 

  3030.     sys.stdout = CarlaPrint(False)

  3031.     sys.stderr = CarlaPrint(True)

  3032.     sys.excepthook = sys_excepthook

  3033. 

  3034.     # --------------------------------------------------------------------------------------------------------

  3035.     # Done

  3036. 

  3037.     return host

  3038. 

  3039. # ------------------------------------------------------------------------------------------------------------

  3040. # Load host settings

  3041. 

  3042. def loadHostSettings(host):

  3043.     # kdevelop likes this :)

  3044.     if False: host = CarlaHostNull()

  3045. 

  3046.     settings = QSafeSettings("falkTX", "Carla2")

  3047. 

  3048.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3049.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3050.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3051.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3052.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3053.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3054.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3055.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3056.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3057.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool)

  3058.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3059.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3060.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3061.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3062. 

  3063.     if host.isPlugin:

  3064.         return

  3065. 

  3066.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3067. 

  3068.     # enums

  3069.     if host.audioDriverForced is None:

  3070.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3071. 

  3072.     if not host.processModeForced:

  3073.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3074. 

  3075.     host.nextProcessMode = host.processMode

  3076. 

  3077.     # --------------------------------------------------------------------------------------------------------

  3078.     # fix things if needed

  3079. 

  3080.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3081.         if LADISH_APP_NAME:

  3082.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3083.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3084. 

  3085.         else:

  3086.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3087. 

  3088.     if gCarla.nogui:

  3089.         host.showLogs = False

  3090. 

  3091.     # --------------------------------------------------------------------------------------------------------

  3092.     # run headless host now if nogui option enabled

  3093. 

  3094.     if gCarla.nogui:

  3095.         runHostWithoutUI(host)

  3096. 

  3097. # ------------------------------------------------------------------------------------------------------------

  3098. # Set host settings

  3099. 

  3100. def setHostSettings(host):

  3101.     # kdevelop likes this :)

  3102.     if False: host = CarlaHostNull()

  3103. 

  3104.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3105.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3106.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3107.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3108.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3109.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3110.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3111.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3112. 

  3113.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3114.         return

  3115. 

  3116.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3117.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3118.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3119. 

  3120. # ------------------------------------------------------------------------------------------------------------

  3121. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3122. 

  3123. def setEngineSettings(host):

  3124.     # kdevelop likes this :)

  3125.     if False: host = CarlaHostNull()

  3126. 

  3127.     # --------------------------------------------------------------------------------------------------------

  3128.     # do nothing if control

  3129. 

  3130.     if host.isControl:

  3131.         return "Control"

  3132. 

  3133.     # --------------------------------------------------------------------------------------------------------

  3134. 

  3135.     settings = QSafeSettings("falkTX", "Carla2")

  3136. 

  3137.     # --------------------------------------------------------------------------------------------------------

  3138.     # main settings

  3139. 

  3140.     setHostSettings(host)

  3141. 

  3142.     # --------------------------------------------------------------------------------------------------------

  3143.     # file paths

  3144. 

  3145.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3146.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3147. 

  3148.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3149.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3150. 

  3151.     # --------------------------------------------------------------------------------------------------------

  3152.     # plugin paths

  3153. 

  3154.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3155.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3156.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3157.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3158.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3159.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3160.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3161. 

  3162.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3163.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3164.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3165.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3166.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3167.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3168.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3169. 

  3170.     # --------------------------------------------------------------------------------------------------------

  3171.     # don't continue if plugin

  3172. 

  3173.     if host.isPlugin:

  3174.         return "Plugin"

  3175. 

  3176.     # --------------------------------------------------------------------------------------------------------

  3177.     # osc settings

  3178. 

  3179.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3180. 

  3181.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3182.         portNumTCP = -1

  3183.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3184.         portNumTCP = 0

  3185.     else:

  3186.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3187. 

  3188.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3189.         portNumUDP = -1

  3190.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3191.         portNumUDP = 0

  3192.     else:

  3193.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3194. 

  3195.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3196.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3197.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3198. 

  3199.     # --------------------------------------------------------------------------------------------------------

  3200.     # wine settings

  3201. 

  3202.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3203.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3204.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3205.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3206.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3207.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3208. 

  3209.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3210.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3211.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3212.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3213.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3214.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3215. 

  3216.     # --------------------------------------------------------------------------------------------------------

  3217.     # driver and device settings

  3218. 

  3219.     # driver name

  3220.     if host.audioDriverForced is not None:

  3221.         audioDriver = host.audioDriverForced

  3222.     else:

  3223.         try:

  3224.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3225.         except:

  3226.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3227. 

  3228.     # driver options

  3229.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3230.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3231.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3232.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3233. 

  3234.     # Only setup audio things if engine is not running

  3235.     if not host.is_engine_running():

  3236.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3237.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3238. 

  3239.         if not audioDriver.startswith("JACK"):

  3240.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3241.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3242.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3243. 

  3244.     # --------------------------------------------------------------------------------------------------------

  3245.     # fix things if needed

  3246. 

  3247.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3248.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3249.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3250. 

  3251.     # --------------------------------------------------------------------------------------------------------

  3252.     # return selected driver name

  3253. 

  3254.     return audioDriver

  3255. 

  3256. # ------------------------------------------------------------------------------------------------------------

  3257. # Run Carla without showing UI

  3258. 

  3259. def runHostWithoutUI(host):

  3260.     # kdevelop likes this :)

  3261.     if False: host = CarlaHostNull()

  3262. 

  3263.     # --------------------------------------------------------------------------------------------------------

  3264.     # Some initial checks

  3265. 

  3266.     if not gCarla.nogui:

  3267.         return

  3268. 

  3269.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3270. 

  3271.     if not projectFile:

  3272.         print("Carla no-gui mode can only be used together with a project file.")

  3273.         sys.exit(1)

  3274. 

  3275.     # --------------------------------------------------------------------------------------------------------

  3276.     # Additional imports

  3277. 

  3278.     from time import sleep

  3279. 

  3280.     # --------------------------------------------------------------------------------------------------------

  3281.     # Init engine

  3282. 

  3283.     audioDriver = setEngineSettings(host)

  3284.     if not host.engine_init(audioDriver, "Carla"):

  3285.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3286.         sys.exit(1)

  3287. 

  3288.     if not host.load_project(projectFile):

  3289.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3290.         host.engine_close()

  3291.         sys.exit(1)

  3292. 

  3293.     # --------------------------------------------------------------------------------------------------------

  3294.     # Idle

  3295. 

  3296.     print("Carla ready!")

  3297. 

  3298.     while host.is_engine_running() and not gCarla.term:

  3299.         host.engine_idle()

  3300.         sleep(0.0333) # 30 Hz

  3301. 

  3302.     # --------------------------------------------------------------------------------------------------------

  3303.     # Stop

  3304. 

  3305.     host.engine_close()

  3306.     sys.exit(0)

  3307. 

  3308. # ------------------------------------------------------------------------------------------------------------