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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2019 Filipe Coelho <falktx@falktx.com>

  6. #

  7. # This program is free software; you can redistribute it and/or

  8. # modify it under the terms of the GNU General Public License as

  9. # published by the Free Software Foundation; either version 2 of

  10. # the License, or any later version.

  11. #

  12. # This program is distributed in the hope that it will be useful,

  13. # but WITHOUT ANY WARRANTY; without even the implied warranty of

  14. # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

  15. # GNU General Public License for more details.

  16. #

  17. # For a full copy of the GNU General Public License see the doc/GPL.txt file.

  18. 

  19. # ------------------------------------------------------------------------------------------------------------

  20. # Imports (Global)

  21. 

  22. import json

  23. 

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

  25. try:

  26.     from PyQt5.Qt import PYQT_VERSION

  27. except ImportError:

  28.     PYQT_VERSION = 0x50600

  29. 

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

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

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

  33. 

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

  35. # Imports (Custom)

  36. 

  37. import ui_carla_host

  38. 

  39. from carla_app import *

  40. from carla_database import *

  41. from carla_settings import *

  42. from carla_utils import *

  43. from carla_widgets import *

  44. 

  45. from patchcanvas import patchcanvas

  46. from widgets.digitalpeakmeter import DigitalPeakMeter

  47. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  48. 

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

  50. # Try Import OpenGL

  51. 

  52. try:

  53.     from PyQt5.QtOpenGL import QGLWidget

  54.     hasGL = True

  55. except:

  56.     hasGL = False

  57. 

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

  59. # Safe exception hook, needed for PyQt5

  60. 

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

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

  63. 

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

  65. # Session Management support

  66. 

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

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

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

  70. 

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

  72. # Small print helper

  73. 

  74. def processMode2Str(processMode):

  75.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  76.         return "Single client"

  77.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  78.         return "Multi client"

  79.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  80.         return "Continuous Rack"

  81.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  82.         return "Patchbay"

  83.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  84.         return "Bridge"

  85.     return "Unknown"

  86. 

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

  88. # Carla Print class

  89. 

  90. class CarlaPrint:

  91.     def __init__(self, err):

  92.         self.err = err

  93. 

  94.     def flush(self):

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

  96. 

  97.     def write(self, string):

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

  99. 

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

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

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

  105.     # signals

  106.     SIGTERM = pyqtSignal()

  107.     SIGUSR1 = pyqtSignal()

  108. 

  109.     # CustomActions

  110.     CUSTOM_ACTION_NONE         = 0

  111.     CUSTOM_ACTION_APP_CLOSE    = 1

  112.     CUSTOM_ACTION_PROJECT_LOAD = 2

  113. 

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

  115. 

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

  117.         QMainWindow.__init__(self, parent)

  118.         self.host = host

  119.         self.ui = ui_carla_host.Ui_CarlaHostW()

  120.         self.ui.setupUi(self)

  121.         gCarla.gui = self

  122. 

  123.         if False:

  124.             # kdevelop likes this :)

  125.             host = CarlaHostNull()

  126.             self.host = host

  127. 

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

  129. 

  130.         self.fParentOrSelf = parent or self

  131. 

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

  133.         # Internal stuff

  134. 

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

  136.         self.fIdleTimerFast = 0

  137.         self.fIdleTimerSlow = 0

  138. 

  139.         self.fLadspaRdfNeedsUpdate = True

  140.         self.fLadspaRdfList = []

  141. 

  142.         self.fPluginCount = 0

  143.         self.fPluginList  = []

  144. 

  145.         self.fPluginDatabaseDialog = None

  146.         self.fFavoritePlugins = []

  147. 

  148.         self.fProjectFilename  = ""

  149.         self.fIsProjectLoading = False

  150.         self.fCurrentlyRemovingAllPlugins = False

  151. 

  152.         self.fLastTransportBPM   = 0.0

  153.         self.fLastTransportFrame = 0

  154.         self.fLastTransportState = False

  155.         self.fBufferSize         = 0

  156.         self.fSampleRate         = 0.0

  157.         self.fOscAddressTCP      = ""

  158.         self.fOscAddressUDP      = ""

  159.         self.fOscReportedHost    = ""

  160. 

  161.         if MACOS:

  162.             self.fMacClosingHelper = True

  163. 

  164.         # CancelableActionCallback Box

  165.         self.fCancelableActionBox = None

  166. 

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

  168.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  169. 

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

  171.         self.fFirstEngineInit = True

  172. 

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

  174.         self.fSavedSettings = {}

  175. 

  176.         if host.isControl:

  177.             self.fClientName         = "Carla-Control"

  178.             self.fSessionManagerName = "Control"

  179.         elif host.isPlugin:

  180.             self.fClientName         = "Carla-Plugin"

  181.             self.fSessionManagerName = "Plugin"

  182.         elif LADISH_APP_NAME:

  183.             self.fClientName         = LADISH_APP_NAME

  184.             self.fSessionManagerName = "LADISH"

  185.         elif NSM_URL and host.nsmOK:

  186.             self.fClientName         = "Carla.tmp"

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

  188.         else:

  189.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  190.             self.fSessionManagerName = ""

  191. 

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

  193.         # Internal stuff (patchbay)

  194. 

  195.         self.fExportImage = QImage()

  196. 

  197.         self.fPeaksCleared = True

  198. 

  199.         self.fExternalPatchbay = False

  200.         self.fSelectedPlugins  = []

  201. 

  202.         self.fCanvasWidth  = 0

  203.         self.fCanvasHeight = 0

  204.         self.fMiniCanvasUpdateTimeout = 0

  205. 

  206.         self.fWithCanvas = withCanvas

  207. 

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

  209.         # Set up GUI (engine stopped)

  210. 

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

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

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

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

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

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

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

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

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

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

  221. 

  222.             if self.host.isControl:

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

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

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

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

  227.             else:

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

  229. 

  230.                 if not withCanvas:

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

  232. 

  233.         else:

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

  235. 

  236.             if WINDOWS:

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

  238. 

  239.         if self.host.isControl:

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

  241.         else:

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

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

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

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

  246. 

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

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

  249. 

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

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

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

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

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

  255. 

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

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

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

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

  260. 

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

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

  263. 

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

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

  266. 

  267.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  285.             self.ui.tw_miniCanvas.hide()

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

  287.             if WINDOWS:

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

  289. 

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

  291.         # Set up GUI (disk)

  292. 

  293.         exts = gCarla.utils.get_supported_file_extensions()

  294. 

  295.         self.fDirModel = QFileSystemModel(self)

  296.         self.fDirModel.setRootPath(HOME)

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

  298. 

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

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

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

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

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

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

  305. 

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

  307.         # Set up GUI (transport)

  308. 

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

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

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

  312. 

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

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

  315. 

  316.         if minLabelWidth < labelTimeWidth:

  317.             minLabelWidth = labelTimeWidth

  318.         if minLabelWidth < labelBBTWidth:

  319.             minLabelWidth = labelBBTWidth

  320. 

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

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

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

  324. 

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

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

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

  328. 

  329.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  342. 

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

  344. 

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

  346.         # Set up GUI (rack)

  347. 

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

  349. 

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

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

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

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

  354. 

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

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

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

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

  359. 

  360.         self.updateStyle()

  361. 

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

  363.           CarlaRackList#CarlaRackList {

  364.             background-color: black;

  365.           }

  366.         """)

  367. 

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

  369.         # Set up GUI (patchbay)

  370. 

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

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

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

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

  375. 

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

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

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

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

  380. 

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

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

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

  384. 

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

  386. 

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

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

  389. 

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

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

  392. 

  393.         if MACOS:

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

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

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

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

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

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

  400. 

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

  402.         # Load Settings

  403. 

  404.         self.loadSettings(True)

  405. 

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

  407.         # Set-up Canvas

  408. 

  409.         if withCanvas:

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

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

  412. 

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

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

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

  416. 

  417.             self.setupCanvas()

  418. 

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

  420.         # Connect actions to functions

  421. 

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

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

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

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

  426. 

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

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

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

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

  431. 

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

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

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

  435. 

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

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

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

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

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

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

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

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

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

  445. 

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

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

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

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

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

  451. 

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

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

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

  455. 

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

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

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

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

  460. 

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

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

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

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

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

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

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

  468. 

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

  470. 

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

  472. 

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

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

  475. 

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

  477. 

  478.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  496. 

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

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

  499. 

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

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

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

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

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

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

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

  507. 

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

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

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

  511. 

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

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

  514. 

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

  516. 

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

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

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

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

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

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

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

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

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

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

  527. 

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

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

  530. 

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

  532. 

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

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

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

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

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

  538. 

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

  540.         # Final setup

  541. 

  542.         self.ui.text_logs.clear()

  543.         self.setProperWindowTitle()

  544. 

  545.         # Disable non-supported features

  546.         features = gCarla.utils.get_supported_features()

  547. 

  548.         if "link" not in features:

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

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

  551. 

  552.         if "juce" not in features:

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

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

  555. 

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

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

  558.             self.startTimers()

  559. 

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

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

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

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

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

  565. 

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

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

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

  569. 

  570.         # Load initial project file if set

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

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

  573. 

  574.             if projectFile:

  575.                 self.loadProjectLater(projectFile)

  576. 

  577.         # For NSM we wait for the open message

  578.         if NSM_URL and host.nsmOK:

  579.             host.nsm_ready(NSM_CALLBACK_INIT)

  580.             return

  581. 

  582.         if not host.isControl:

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

  584. 

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

  586.     # Setup

  587. 

  588.     def compactPlugin(self, pluginId):

  589.         if pluginId > self.fPluginCount:

  590.             return

  591. 

  592.         pitem = self.fPluginList[pluginId]

  593. 

  594.         if pitem is None:

  595.             return

  596. 

  597.         pitem.recreateWidget(True)

  598. 

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

  600.         if pluginId > self.fPluginCount:

  601.             return

  602. 

  603.         pitem = self.fPluginList[pluginId]

  604. 

  605.         if pitem is None:

  606.             return

  607. 

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

  609.         pitem.recreateWidget(newColor = color)

  610. 

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

  612.         if pluginId > self.fPluginCount:

  613.             return

  614. 

  615.         pitem = self.fPluginList[pluginId]

  616. 

  617.         if pitem is None:

  618.             return

  619. 

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

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

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

  623.         else:

  624.             pitem.recreateWidget(newSkin = skin)

  625. 

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

  627.         if pluginIdA == pluginIdB:

  628.             return

  629.         if pluginIdA < 0 or pluginIdB < 0:

  630.             return

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

  632.             return

  633. 

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

  635. 

  636.         itemA = self.fPluginList[pluginIdA]

  637.         compactA = itemA.isCompacted()

  638.         guiShownA = itemA.isGuiShown()

  639. 

  640.         itemB = self.fPluginList[pluginIdB]

  641.         compactB = itemB.isCompacted()

  642.         guiShownB = itemB.isGuiShown()

  643. 

  644.         itemA.setPluginId(pluginIdA)

  645.         itemA.recreateWidget2(compactB, guiShownB)

  646. 

  647.         itemB.setPluginId(pluginIdB)

  648.         itemB.recreateWidget2(compactA, guiShownA)

  649. 

  650.         if self.fWithCanvas:

  651.             self.slot_canvasRefresh()

  652. 

  653.     def setLoadRDFsNeeded(self):

  654.         self.fLadspaRdfNeedsUpdate = True

  655. 

  656.     def setProperWindowTitle(self):

  657.         title = self.fClientName

  658. 

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

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

  661.         if self.fSessionManagerName:

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

  663. 

  664.         self.setWindowTitle(title)

  665. 

  666.     def updateBufferSize(self, newBufferSize):

  667.         if self.fBufferSize == newBufferSize:

  668.             return

  669.         self.fBufferSize = newBufferSize

  670.         self.ui.cb_buffer_size.clear()

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

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

  673. 

  674.     def updateSampleRate(self, newSampleRate):

  675.         if self.fSampleRate == newSampleRate:

  676.             return

  677.         self.fSampleRate = newSampleRate

  678.         self.ui.cb_sample_rate.clear()

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

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

  681.         self.refreshTransport(True)

  682. 

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

  684.     # Files

  685. 

  686.     def makeExtraFilename(self):

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

  688. 

  689.     def loadProjectNow(self):

  690.         if not self.fProjectFilename:

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

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

  693.             return

  694. 

  695.         self.projectLoadingStarted()

  696.         self.fIsProjectLoading = True

  697. 

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

  699.             self.fIsProjectLoading = False

  700.             self.projectLoadingFinished()

  701. 

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

  703.                              self.host.get_last_error(),

  704.                              QMessageBox.Ok, QMessageBox.Ok)

  705. 

  706.     def loadProjectLater(self, filename):

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

  708.         self.setProperWindowTitle()

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

  710. 

  711.     def saveProjectNow(self):

  712.         if not self.fProjectFilename:

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

  714. 

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

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

  717.                              self.host.get_last_error(),

  718.                              QMessageBox.Ok, QMessageBox.Ok)

  719.             return

  720. 

  721.         if not self.fWithCanvas:

  722.             return

  723. 

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

  725.             json.dump({

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

  727.             }, fh)

  728. 

  729.     def projectLoadingStarted(self):

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

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

  732. 

  733.     def projectLoadingFinished(self):

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

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

  736. 

  737.         if not self.fWithCanvas:

  738.             return

  739. 

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

  741. 

  742.         extrafile = self.makeExtraFilename()

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

  744.             return

  745. 

  746.         try:

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

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

  749.         except:

  750.             return

  751. 

  752.         patchcanvas.restoreGroupPositions(canvasdata)

  753. 

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

  755.     # Files (menu actions)

  756. 

  757.     @pyqtSlot()

  758.     def slot_fileNew(self):

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

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

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

  762.             return

  763. 

  764.         self.pluginRemoveAll()

  765.         self.fProjectFilename = ""

  766.         self.setProperWindowTitle()

  767.         self.host.clear_project_filename()

  768. 

  769.     @pyqtSlot()

  770.     def slot_fileOpen(self):

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

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

  773. 

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

  775.         if not filename:

  776.             return

  777. 

  778.         newFile = True

  779. 

  780.         if self.fPluginCount > 0:

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

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

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

  784. 

  785.         if newFile:

  786.             self.pluginRemoveAll()

  787.             self.fProjectFilename = filename

  788.             self.setProperWindowTitle()

  789.             self.loadProjectNow()

  790.         else:

  791.             filenameOld = self.fProjectFilename

  792.             self.fProjectFilename = filename

  793.             self.loadProjectNow()

  794.             self.fProjectFilename = filenameOld

  795. 

  796.     @pyqtSlot()

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

  798.         if self.fProjectFilename and not saveAs:

  799.             return self.saveProjectNow()

  800. 

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

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

  803. 

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

  805.         if not filename:

  806.             return

  807. 

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

  809.             filename += ".carxp"

  810. 

  811.         if self.fProjectFilename != filename:

  812.             self.fProjectFilename = filename

  813.             self.setProperWindowTitle()

  814. 

  815.         self.saveProjectNow()

  816. 

  817.     @pyqtSlot()

  818.     def slot_fileSaveAs(self):

  819.         self.slot_fileSave(True)

  820. 

  821.     @pyqtSlot()

  822.     def slot_loadProjectNow(self):

  823.         self.loadProjectNow()

  824. 

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

  826.     # Engine (menu actions)

  827. 

  828.     @pyqtSlot()

  829.     def slot_engineStart(self):

  830.         audioDriver = setEngineSettings(self.host)

  831.         firstInit   = self.fFirstEngineInit

  832. 

  833.         self.fFirstEngineInit = False

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

  835. 

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

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

  838.                 settings = QSettings()

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

  840.                 del settings

  841.                 self.host.transport_bpm(lastBpm)

  842.             return

  843. 

  844.         elif firstInit:

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

  846.             return

  847. 

  848.         audioError = self.host.get_last_error()

  849. 

  850.         if audioError:

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

  852.         else:

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

  854. 

  855.     @pyqtSlot()

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

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

  858. 

  859.         if self.fPluginCount == 0:

  860.             self.engineStopFinal()

  861.             return True

  862. 

  863.         if not forced:

  864.             ask = QMessageBox.question(self, self.tr("Warning"), self.tr("There are still some plugins loaded, you need to remove them to stop the engine.\n"

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

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

  867.             if ask != QMessageBox.Yes:

  868.                 return False

  869. 

  870.         return self.slot_engineStopTryAgain()

  871. 

  872.     @pyqtSlot()

  873.     def slot_engineConfig(self):

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

  875. 

  876.         if not dialog.exec_():

  877.             return

  878. 

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

  880. 

  881.         if self.host.is_engine_running():

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

  883.         else:

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

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

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

  887. 

  888.     @pyqtSlot()

  889.     def slot_engineStopTryAgain(self):

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

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

  892.             return False

  893. 

  894.         self.engineStopFinal()

  895.         return True

  896. 

  897.     def engineStopFinal(self):

  898.         self.killTimers()

  899. 

  900.         if self.host.is_engine_running():

  901.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  902.                 self.removeAllPlugins()

  903.             elif self.fPluginCount != 0:

  904.                 self.fCurrentlyRemovingAllPlugins = True

  905.                 self.projectLoadingStarted()

  906. 

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

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

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

  910. 

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

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

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

  914. 

  915.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  916.             self.close()

  917.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  918.             self.slot_engineStart()

  919.             self.loadProjectNow()

  920.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  921. 

  922.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  923. 

  924.     # --------------------------------------------------------------------------------------------------------

  925.     # Engine (host callbacks)

  926. 

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

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

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

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

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

  932. 

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

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

  935. 

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

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

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

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

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

  941.             self.fExternalPatchbay = False

  942.         else:

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

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

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

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

  947.             self.fExternalPatchbay = True

  948. 

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

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

  951. 

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

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

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

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

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

  957. 

  958.         if not self.host.isPlugin:

  959.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  960. 

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

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

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

  964. 

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

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

  967. 

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

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

  970. 

  971.         self.updateBufferSize(bufferSize)

  972.         self.updateSampleRate(int(sampleRate))

  973.         self.refreshRuntimeInfo(0.0, 0)

  974.         self.startTimers()

  975. 

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

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

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

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

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

  981. 

  982.     @pyqtSlot()

  983.     def slot_handleEngineStoppedCallback(self):

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

  985. 

  986.         patchcanvas.clear()

  987.         self.killTimers()

  988. 

  989.         # just in case

  990.         self.removeAllPlugins()

  991.         self.refreshRuntimeInfo(0.0, 0)

  992. 

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

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

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

  996. 

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

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

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

  1000.             self.ui.act_engine_stop.setEnabled(False)

  1001. 

  1002.         if self.host.isPlugin or not self.fSessionManagerName:

  1003.             self.ui.act_file_open.setEnabled(False)

  1004.             self.ui.act_file_save_as.setEnabled(False)

  1005. 

  1006.     @pyqtSlot(int, str)

  1007.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1008.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1009. 

  1010.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1011.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1012. 

  1013.     @pyqtSlot(int)

  1014.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1015.         self.updateBufferSize(newBufferSize)

  1016. 

  1017.     @pyqtSlot(float)

  1018.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1019.         self.updateSampleRate(int(newSampleRate))

  1020. 

  1021.     @pyqtSlot(int, bool, str)

  1022.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1023.         if self.fCancelableActionBox is not None:

  1024.             self.fCancelableActionBox.close()

  1025. 

  1026.         if started:

  1027.             self.fCancelableActionBox = QMessageBox(self)

  1028.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1029.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1030.             self.fCancelableActionBox.setText(action)

  1031.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1032.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1033.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1034.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1035.             self.fCancelableActionBox.show()

  1036. 

  1037.         else:

  1038.             self.fCancelableActionBox = None

  1039. 

  1040.     @pyqtSlot()

  1041.     def slot_canlableActionBoxClicked(self):

  1042.         self.host.cancel_engine_action()

  1043. 

  1044.     @pyqtSlot()

  1045.     def slot_handleProjectLoadFinishedCallback(self):

  1046.         self.fIsProjectLoading = False

  1047.         self.projectLoadingFinished()

  1048. 

  1049.     # --------------------------------------------------------------------------------------------------------

  1050.     # Plugins

  1051. 

  1052.     def removeAllPlugins(self):

  1053.         self.ui.act_plugin_remove_all.setEnabled(False)

  1054.         patchcanvas.handleAllPluginsRemoved()

  1055. 

  1056.         while self.ui.listWidget.takeItem(0):

  1057.             pass

  1058. 

  1059.         self.clearSideStuff()

  1060. 

  1061.         for pitem in self.fPluginList:

  1062.             if pitem is None:

  1063.                 continue

  1064. 

  1065.             pitem.close()

  1066.             del pitem

  1067. 

  1068.         self.fPluginCount = 0

  1069.         self.fPluginList  = []

  1070. 

  1071.     # --------------------------------------------------------------------------------------------------------

  1072.     # Plugins (menu actions)

  1073. 

  1074.     def showAddPluginDialog(self):

  1075.         if self.fPluginDatabaseDialog is None:

  1076.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1077.         dialog = self.fPluginDatabaseDialog

  1078. 

  1079.         ret = dialog.exec_()

  1080. 

  1081.         if dialog.fFavoritePluginsChanged:

  1082.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1083. 

  1084.         if not ret:

  1085.             return

  1086. 

  1087.         if not self.host.is_engine_running():

  1088.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1089.             return

  1090. 

  1091.         btype    = dialog.fRetPlugin['build']

  1092.         ptype    = dialog.fRetPlugin['type']

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

  1094.         label    = dialog.fRetPlugin['label']

  1095.         uniqueId = dialog.fRetPlugin['uniqueId']

  1096.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1097. 

  1098.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1099. 

  1100.     def showAddJackAppDialog(self):

  1101.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1102. 

  1103.         if not dialog.exec_():

  1104.             return

  1105. 

  1106.         if not self.host.is_engine_running():

  1107.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1108.             return

  1109. 

  1110.         return dialog.getCommandAndFlags()

  1111. 

  1112.     @pyqtSlot()

  1113.     def slot_favoritePluginAdd(self):

  1114.         plugin = self.sender().data()

  1115. 

  1116.         if plugin is None:

  1117.             return

  1118. 

  1119.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1120.                                     plugin['label'], plugin['uniqueId'], None, 0x0):

  1121.             CustomMessageBox(self,

  1122.                              QMessageBox.Critical,

  1123.                              self.tr("Error"),

  1124.                              self.tr("Failed to load plugin"),

  1125.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1126. 

  1127.     @pyqtSlot()

  1128.     def showPluginActionsMenu(self):

  1129.         menu = QMenu(self)

  1130. 

  1131.         menu.addSection("Plugins")

  1132.         menu.addAction(self.ui.act_plugin_add)

  1133. 

  1134.         if len(self.fFavoritePlugins) != 0:

  1135.             fmenu = QMenu("Add from favorites", self)

  1136.             for p in self.fFavoritePlugins:

  1137.                 act = fmenu.addAction(p['name'])

  1138.                 act.setData(p)

  1139.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1140.             menu.addMenu(fmenu)

  1141. 

  1142.         menu.addAction(self.ui.act_plugin_remove_all)

  1143. 

  1144.         menu.addSection("All plugins (macros)")

  1145.         menu.addAction(self.ui.act_plugins_enable)

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

  1147.         menu.addSeparator()

  1148.         menu.addAction(self.ui.act_plugins_volume100)

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

  1150.         menu.addSeparator()

  1151.         menu.addAction(self.ui.act_plugins_wet100)

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

  1153.         menu.addSeparator()

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

  1155.         menu.addSeparator()

  1156.         menu.addAction(self.ui.act_plugins_compact)

  1157.         menu.addAction(self.ui.act_plugins_expand)

  1158. 

  1159.         menu.exec_(QCursor.pos())

  1160. 

  1161.     @pyqtSlot()

  1162.     def slot_pluginAdd(self):

  1163.         data = self.showAddPluginDialog()

  1164. 

  1165.         if data is None:

  1166.             return

  1167. 

  1168.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1169. 

  1170.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1171.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1172. 

  1173.     @pyqtSlot()

  1174.     def slot_confirmRemoveAll(self):

  1175.         if self.fPluginCount == 0:

  1176.             return

  1177. 

  1178.         if QMessageBox.question(self, self.tr("Remove All"),

  1179.                                       self.tr("Are you sure you want to remove all plugins?"),

  1180.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1181.             return

  1182. 

  1183.         self.pluginRemoveAll()

  1184. 

  1185.     def pluginRemoveAll(self):

  1186.         if self.fPluginCount == 0:

  1187.             return

  1188. 

  1189.         self.fCurrentlyRemovingAllPlugins = True

  1190.         self.projectLoadingStarted()

  1191. 

  1192.         if not self.host.remove_all_plugins():

  1193.             self.projectLoadingFinished()

  1194.             self.fCurrentlyRemovingAllPlugins = False

  1195.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1196.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1197. 

  1198.     @pyqtSlot()

  1199.     def slot_jackAppAdd(self):

  1200.         data = self.showAddJackAppDialog()

  1201. 

  1202.         if data is None:

  1203.             return

  1204. 

  1205.         filename, name, label = data

  1206. 

  1207.         if not filename:

  1208.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1209.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1210.             return

  1211. 

  1212.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1213.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1214.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1215. 

  1216.     # --------------------------------------------------------------------------------------------------------

  1217.     # Plugins (macros)

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_pluginsEnable(self):

  1221.         if not self.host.is_engine_running():

  1222.             return

  1223. 

  1224.         for pitem in self.fPluginList:

  1225.             if pitem is None:

  1226.                 break

  1227. 

  1228.             pitem.getWidget().setActive(True, True, True)

  1229. 

  1230.     @pyqtSlot()

  1231.     def slot_pluginsDisable(self):

  1232.         if not self.host.is_engine_running():

  1233.             return

  1234. 

  1235.         for pitem in self.fPluginList:

  1236.             if pitem is None:

  1237.                 break

  1238. 

  1239.             pitem.getWidget().setActive(False, True, True)

  1240. 

  1241.     @pyqtSlot()

  1242.     def slot_pluginsVolume100(self):

  1243.         if not self.host.is_engine_running():

  1244.             return

  1245. 

  1246.         for pitem in self.fPluginList:

  1247.             if pitem is None:

  1248.                 break

  1249. 

  1250.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1251. 

  1252.     @pyqtSlot()

  1253.     def slot_pluginsMute(self):

  1254.         if not self.host.is_engine_running():

  1255.             return

  1256. 

  1257.         for pitem in self.fPluginList:

  1258.             if pitem is None:

  1259.                 break

  1260. 

  1261.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1262. 

  1263.     @pyqtSlot()

  1264.     def slot_pluginsWet100(self):

  1265.         if not self.host.is_engine_running():

  1266.             return

  1267. 

  1268.         for pitem in self.fPluginList:

  1269.             if pitem is None:

  1270.                 break

  1271. 

  1272.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1273. 

  1274.     @pyqtSlot()

  1275.     def slot_pluginsBypass(self):

  1276.         if not self.host.is_engine_running():

  1277.             return

  1278. 

  1279.         for pitem in self.fPluginList:

  1280.             if pitem is None:

  1281.                 break

  1282. 

  1283.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1284. 

  1285.     @pyqtSlot()

  1286.     def slot_pluginsCenter(self):

  1287.         if not self.host.is_engine_running():

  1288.             return

  1289. 

  1290.         for pitem in self.fPluginList:

  1291.             if pitem is None:

  1292.                 break

  1293. 

  1294.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1295.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1296.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1297. 

  1298.     @pyqtSlot()

  1299.     def slot_pluginsCompact(self):

  1300.         for pitem in self.fPluginList:

  1301.             if pitem is None:

  1302.                 break

  1303.             pitem.compact()

  1304. 

  1305.     @pyqtSlot()

  1306.     def slot_pluginsExpand(self):

  1307.         for pitem in self.fPluginList:

  1308.             if pitem is None:

  1309.                 break

  1310.             pitem.expand()

  1311. 

  1312.     # --------------------------------------------------------------------------------------------------------

  1313.     # Plugins (host callbacks)

  1314. 

  1315.     @pyqtSlot(int, str)

  1316.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1317.         if pluginId != self.fPluginCount:

  1318.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1319.             pitem = self.getPluginItem(pluginId)

  1320.             pitem.recreateWidget()

  1321.             return

  1322. 

  1323.         pitem = self.ui.listWidget.createItem(pluginId)

  1324.         self.fPluginList.append(pitem)

  1325.         self.fPluginCount += 1

  1326. 

  1327.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1328. 

  1329.     @pyqtSlot(int)

  1330.     def slot_handlePluginRemovedCallback(self, pluginId):

  1331.         patchcanvas.handlePluginRemoved(pluginId)

  1332. 

  1333.         if pluginId in self.fSelectedPlugins:

  1334.             self.clearSideStuff()

  1335. 

  1336.         if self.fPluginCount == 0:

  1337.             return

  1338. 

  1339.         pitem = self.getPluginItem(pluginId)

  1340. 

  1341.         self.fPluginCount -= 1

  1342.         self.fPluginList.pop(pluginId)

  1343.         self.ui.listWidget.takeItem(pluginId)

  1344. 

  1345.         if pitem is not None:

  1346.             pitem.close()

  1347.             del pitem

  1348. 

  1349.         if self.fPluginCount == 0:

  1350.             self.ui.act_plugin_remove_all.setEnabled(False)

  1351.             if self.fCurrentlyRemovingAllPlugins:

  1352.                 self.fCurrentlyRemovingAllPlugins = False

  1353.                 self.projectLoadingFinished()

  1354.             return

  1355. 

  1356.         # push all plugins 1 slot back

  1357.         for i in range(pluginId, self.fPluginCount):

  1358.             pitem = self.fPluginList[i]

  1359.             pitem.setPluginId(i)

  1360. 

  1361.         self.ui.act_plugin_remove_all.setEnabled(True)

  1362. 

  1363.     # --------------------------------------------------------------------------------------------------------

  1364.     # Canvas

  1365. 

  1366.     def clearSideStuff(self):

  1367.         if self.fWithCanvas:

  1368.             self.scene.clearSelection()

  1369. 

  1370.         self.fSelectedPlugins = []

  1371. 

  1372.         self.ui.keyboard.allNotesOff(False)

  1373.         self.ui.scrollArea.setEnabled(False)

  1374. 

  1375.         self.fPeaksCleared = True

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

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

  1378.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1379.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1380. 

  1381.     def setupCanvas(self):

  1382.         pOptions = patchcanvas.options_t()

  1383.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1384.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1385.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1386.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1387.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1388.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1389. 

  1390.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1391.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1392.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1393.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1394.         else:

  1395.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1396. 

  1397.         pFeatures = patchcanvas.features_t()

  1398.         pFeatures.group_info   = False

  1399.         pFeatures.group_rename = False

  1400.         pFeatures.port_info    = False

  1401.         pFeatures.port_rename  = False

  1402.         pFeatures.handle_group_pos = True

  1403. 

  1404.         patchcanvas.setOptions(pOptions)

  1405.         patchcanvas.setFeatures(pFeatures)

  1406.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1407. 

  1408.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1409. 

  1410.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1411.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1412.             self.fCanvasHeight = int(tryCanvasSize[1])

  1413.         else:

  1414.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1415.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1416. 

  1417.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1418.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1419.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1420. 

  1421.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1422.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1423. 

  1424.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1425.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1426. 

  1427.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1428.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1429.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1430. 

  1431.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1432.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1433. 

  1434.         else:

  1435.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1436. 

  1437.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

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

  1439.         else:

  1440.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1441. 

  1442.     def updateCanvasInitialPos(self):

  1443.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1444.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1445.         patchcanvas.setInitialPos(x, y)

  1446. 

  1447.     def updateMiniCanvasLater(self):

  1448.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1449. 

  1450.     # --------------------------------------------------------------------------------------------------------

  1451.     # Canvas (menu actions)

  1452. 

  1453.     @pyqtSlot()

  1454.     def slot_canvasShowInternal(self):

  1455.         self.fExternalPatchbay = False

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

  1457.         self.ui.act_canvas_show_external.blockSignals(True)

  1458.         self.ui.act_canvas_show_internal.setChecked(True)

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

  1460.         self.ui.act_canvas_show_internal.blockSignals(False)

  1461.         self.ui.act_canvas_show_external.blockSignals(False)

  1462.         self.slot_canvasRefresh()

  1463. 

  1464.     @pyqtSlot()

  1465.     def slot_canvasShowExternal(self):

  1466.         self.fExternalPatchbay = True

  1467.         self.ui.act_canvas_show_internal.blockSignals(True)

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

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

  1470.         self.ui.act_canvas_show_external.setChecked(True)

  1471.         self.ui.act_canvas_show_internal.blockSignals(False)

  1472.         self.ui.act_canvas_show_external.blockSignals(False)

  1473.         self.slot_canvasRefresh()

  1474. 

  1475.     @pyqtSlot()

  1476.     def slot_canvasArrange(self):

  1477.         patchcanvas.arrange()

  1478. 

  1479.     @pyqtSlot()

  1480.     def slot_canvasRefresh(self):

  1481.         patchcanvas.clear()

  1482. 

  1483.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1484.             return

  1485. 

  1486.         if self.host.is_engine_running():

  1487.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1488. 

  1489.         self.updateMiniCanvasLater()

  1490. 

  1491.     @pyqtSlot()

  1492.     def slot_canvasZoomFit(self):

  1493.         self.scene.zoom_fit()

  1494. 

  1495.     @pyqtSlot()

  1496.     def slot_canvasZoomIn(self):

  1497.         self.scene.zoom_in()

  1498. 

  1499.     @pyqtSlot()

  1500.     def slot_canvasZoomOut(self):

  1501.         self.scene.zoom_out()

  1502. 

  1503.     @pyqtSlot()

  1504.     def slot_canvasZoomReset(self):

  1505.         self.scene.zoom_reset()

  1506. 

  1507.     @pyqtSlot()

  1508.     def slot_canvasSaveImage(self):

  1509.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1510. 

  1511.         # FIXME use ok value, test if it works as expected

  1512.         if not newPath:

  1513.             return

  1514. 

  1515.         self.scene.clearSelection()

  1516. 

  1517.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1518.             imgFormat = "JPG"

  1519.         elif newPath.lower().endswith((".png",)):

  1520.             imgFormat = "PNG"

  1521.         else:

  1522.             # File-dialog may not auto-add the extension

  1523.             imgFormat = "PNG"

  1524.             newPath  += ".png"

  1525. 

  1526.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1527.         painter = QPainter(self.fExportImage)

  1528.         painter.save()

  1529.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1530.         painter.setRenderHint(QPainter.TextAntialiasing)

  1531.         self.scene.render(painter)

  1532.         self.fExportImage.save(newPath, imgFormat, 100)

  1533.         painter.restore()

  1534. 

  1535.     # --------------------------------------------------------------------------------------------------------

  1536.     # Canvas (canvas callbacks)

  1537. 

  1538.     @pyqtSlot(int, int, QPointF)

  1539.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1540.         self.updateMiniCanvasLater()

  1541. 

  1542.     @pyqtSlot()

  1543.     def slot_canvasSelectionChanged(self):

  1544.         self.updateMiniCanvasLater()

  1545. 

  1546.     @pyqtSlot(float)

  1547.     def slot_canvasScaleChanged(self, scale):

  1548.         self.ui.miniCanvasPreview.setViewScale(scale)

  1549. 

  1550.     @pyqtSlot(list)

  1551.     def slot_canvasPluginSelected(self, pluginList):

  1552.         self.ui.keyboard.allNotesOff(False)

  1553.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1554.         self.fSelectedPlugins = pluginList

  1555. 

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

  1557.     # Canvas (host callbacks)

  1558. 

  1559.     @pyqtSlot(int, int, int, str)

  1560.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1561.         pcSplit = patchcanvas.SPLIT_UNDEF

  1562.         pcIcon  = patchcanvas.ICON_APPLICATION

  1563. 

  1564.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1565.             pcIcon = patchcanvas.ICON_PLUGIN

  1566.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1567.             pcIcon = patchcanvas.ICON_HARDWARE

  1568.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1569.             pass

  1570.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1571.             pcIcon = patchcanvas.ICON_DISTRHO

  1572.         elif clientIcon == PATCHBAY_ICON_FILE:

  1573.             pcIcon = patchcanvas.ICON_FILE

  1574. 

  1575.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1576. 

  1577.         self.updateMiniCanvasLater()

  1578. 

  1579.         if pluginId < 0:

  1580.             return

  1581.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1582.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1583.             return

  1584. 

  1585.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1586.             hasCustomUI = False

  1587.             hasInlineDisplay = False

  1588.         else:

  1589.             hints = self.host.get_plugin_info(pluginId)['hints']

  1590.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1591.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1592. 

  1593.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1594. 

  1595.     @pyqtSlot(int)

  1596.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1597.         patchcanvas.removeGroup(clientId)

  1598.         self.updateMiniCanvasLater()

  1599. 

  1600.     @pyqtSlot(int, str)

  1601.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1602.         patchcanvas.renameGroup(clientId, newClientName)

  1603.         self.updateMiniCanvasLater()

  1604. 

  1605.     @pyqtSlot(int, int, int)

  1606.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1607.         pcIcon = patchcanvas.ICON_APPLICATION

  1608. 

  1609.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1610.             pcIcon = patchcanvas.ICON_PLUGIN

  1611.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1612.             pcIcon = patchcanvas.ICON_HARDWARE

  1613.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1614.             pass

  1615.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1616.             pcIcon = patchcanvas.ICON_DISTRHO

  1617.         elif clientIcon == PATCHBAY_ICON_FILE:

  1618.             pcIcon = patchcanvas.ICON_FILE

  1619. 

  1620.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1621.         self.updateMiniCanvasLater()

  1622. 

  1623.         if pluginId < 0:

  1624.             return

  1625.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1626.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1627.             return

  1628. 

  1629.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1630.             hasCustomUI = False

  1631.             hasInlineDisplay = False

  1632.         else:

  1633.             hints = self.host.get_plugin_info(pluginId)['hints']

  1634.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1635.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1636. 

  1637.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1638. 

  1639.     @pyqtSlot(int, int, int, int, str)

  1640.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1641.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1642.             portMode = patchcanvas.PORT_MODE_INPUT

  1643.         else:

  1644.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1645. 

  1646.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1647.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1648.             isAlternate = False

  1649.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1650.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1651.             isAlternate = True

  1652.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1653.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1654.             isAlternate = False

  1655.         else:

  1656.             portType    = patchcanvas.PORT_TYPE_NULL

  1657.             isAlternate = False

  1658. 

  1659.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1660.         self.updateMiniCanvasLater()

  1661. 

  1662.     @pyqtSlot(int, int)

  1663.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1664.         patchcanvas.removePort(groupId, portId)

  1665.         self.updateMiniCanvasLater()

  1666. 

  1667.     @pyqtSlot(int, int, int, int, str)

  1668.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1669.         patchcanvas.renamePort(groupId, portId, newPortName)

  1670.         self.updateMiniCanvasLater()

  1671. 

  1672.     @pyqtSlot(int, int, int, str)

  1673.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1674.         # TODO

  1675.         pass

  1676. 

  1677.     @pyqtSlot(int, int)

  1678.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1679.         # TODO

  1680.         pass

  1681. 

  1682.     @pyqtSlot(int, int, int, str)

  1683.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1684.         # TODO

  1685.         pass

  1686. 

  1687.     @pyqtSlot(int, int, int, int, int)

  1688.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1689.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1690.         self.updateMiniCanvasLater()

  1691. 

  1692.     @pyqtSlot(int, int, int)

  1693.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1694.         patchcanvas.disconnectPorts(connectionId)

  1695.         self.updateMiniCanvasLater()

  1696. 

  1697.     # --------------------------------------------------------------------------------------------------------

  1698.     # Settings

  1699. 

  1700.     def saveSettings(self):

  1701.         settings = QSettings()

  1702. 

  1703.         settings.setValue("Geometry", self.saveGeometry())

  1704.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1705. 

  1706.         if not self.host.isControl:

  1707.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1708. 

  1709.         diskFolders = []

  1710. 

  1711.         for i in range(self.ui.cb_disk.count()):

  1712.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1713. 

  1714.         settings.setValue("DiskFolders", diskFolders)

  1715.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1716. 

  1717.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1718.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1719.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1720.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1721. 

  1722.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1723.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1724. 

  1725.         return settings

  1726. 

  1727.     def loadSettings(self, firstTime):

  1728.         settings = QSettings()

  1729. 

  1730.         if firstTime:

  1731.             self.restoreGeometry(settings.value("Geometry", b""))

  1732. 

  1733.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1734.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1735.             self.ui.toolBar.setEnabled(showToolbar)

  1736.             self.ui.toolBar.setVisible(showToolbar)

  1737. 

  1738.             #if settings.contains("SplitterState"):

  1739.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1740.             #else:

  1741.                 #self.ui.splitter.setSizes([210, 99999])

  1742. 

  1743.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1744.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1745.             self.slot_showSidePanel(showSidePanel)

  1746. 

  1747.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1748. 

  1749.             self.ui.cb_disk.setItemData(0, HOME)

  1750. 

  1751.             for i in range(len(diskFolders)):

  1752.                 if i == 0: continue

  1753.                 folder = diskFolders[i]

  1754.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1755. 

  1756.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1757.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1758. 

  1759.             showMeters = settings.value("ShowMeters", True, type=bool)

  1760.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1761.             self.ui.peak_in.setVisible(showMeters)

  1762.             self.ui.peak_out.setVisible(showMeters)

  1763. 

  1764.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1765.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1766.             self.ui.scrollArea.setVisible(showKeyboard)

  1767. 

  1768.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1769. 

  1770.             settingsDBf = QSettings("falkTX", "CarlaDatabase2")

  1771.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], type=list)

  1772. 

  1773.         # TODO - complete this

  1774. 

  1775.         self.fSavedSettings = {

  1776.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1777.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1778.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1779.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1780.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1781.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1782.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1783.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1784.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1785.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1786.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1787.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1788.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1789.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1790.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     type=bool),

  1791.             CARLA_KEY_CANVAS_INLINE_DISPLAYS:   settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS,   CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS,   type=bool),

  1792.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1793.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1794.         }

  1795. 

  1796.         settings2 = QSettings("falkTX", "Carla2")

  1797. 

  1798.         if self.host.experimental:

  1799.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

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

  1801.         else:

  1802.             self.ui.act_plugin_add_jack.setVisible(False)

  1803. 

  1804.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1805. 

  1806.         setEngineSettings(self.host)

  1807.         self.restartTimersIfNeeded()

  1808. 

  1809.         return settings

  1810. 

  1811.     # --------------------------------------------------------------------------------------------------------

  1812.     # Settings (helpers)

  1813. 

  1814.     def enableTransport(self, enabled):

  1815.         self.ui.group_transport_controls.setEnabled(enabled)

  1816.         self.ui.group_transport_settings.setEnabled(enabled)

  1817. 

  1818.     @pyqtSlot()

  1819.     def slot_restoreCanvasScrollbarValues(self):

  1820.         settings = QSettings()

  1821.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1822.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1823. 

  1824.     # --------------------------------------------------------------------------------------------------------

  1825.     # Settings (menu actions)

  1826. 

  1827.     @pyqtSlot(bool)

  1828.     def slot_showSidePanel(self, yesNo):

  1829.         self.ui.dockWidget.setEnabled(yesNo)

  1830.         self.ui.dockWidget.setVisible(yesNo)

  1831. 

  1832.     @pyqtSlot(bool)

  1833.     def slot_showToolbar(self, yesNo):

  1834.         self.ui.toolBar.setEnabled(yesNo)

  1835.         self.ui.toolBar.setVisible(yesNo)

  1836. 

  1837.     @pyqtSlot(bool)

  1838.     def slot_showCanvasMeters(self, yesNo):

  1839.         self.ui.peak_in.setVisible(yesNo)

  1840.         self.ui.peak_out.setVisible(yesNo)

  1841.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1842. 

  1843.     @pyqtSlot(bool)

  1844.     def slot_showCanvasKeyboard(self, yesNo):

  1845.         self.ui.scrollArea.setVisible(yesNo)

  1846.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1847. 

  1848.     @pyqtSlot()

  1849.     def slot_configureCarla(self):

  1850.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1851.         if not dialog.exec_():

  1852.             return

  1853. 

  1854.         self.loadSettings(False)

  1855. 

  1856.         patchcanvas.clear()

  1857. 

  1858.         self.setupCanvas()

  1859.         self.slot_miniCanvasCheckAll()

  1860. 

  1861.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1862.             pass

  1863.         elif self.host.is_engine_running():

  1864.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1865. 

  1866.     # --------------------------------------------------------------------------------------------------------

  1867.     # About (menu actions)

  1868. 

  1869.     @pyqtSlot()

  1870.     def slot_aboutCarla(self):

  1871.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1872. 

  1873.     @pyqtSlot()

  1874.     def slot_aboutJuce(self):

  1875.         JuceAboutW(self.fParentOrSelf).exec_()

  1876. 

  1877.     @pyqtSlot()

  1878.     def slot_aboutQt(self):

  1879.         QApplication.instance().aboutQt()

  1880. 

  1881.     # --------------------------------------------------------------------------------------------------------

  1882.     # Disk (menu actions)

  1883. 

  1884.     @pyqtSlot(int)

  1885.     def slot_diskFolderChanged(self, index):

  1886.         if index < 0:

  1887.             return

  1888.         elif index == 0:

  1889.             filename = HOME

  1890.             self.ui.b_disk_remove.setEnabled(False)

  1891.         else:

  1892.             filename = self.ui.cb_disk.itemData(index)

  1893.             self.ui.b_disk_remove.setEnabled(True)

  1894. 

  1895.         self.fDirModel.setRootPath(filename)

  1896.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1897. 

  1898.     @pyqtSlot()

  1899.     def slot_diskFolderAdd(self):

  1900.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1901. 

  1902.         if newPath:

  1903.             if newPath[-1] == os.sep:

  1904.                 newPath = newPath[:-1]

  1905.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1906.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1907.             self.ui.b_disk_remove.setEnabled(True)

  1908. 

  1909.     @pyqtSlot()

  1910.     def slot_diskFolderRemove(self):

  1911.         index = self.ui.cb_disk.currentIndex()

  1912. 

  1913.         if index <= 0:

  1914.             return

  1915. 

  1916.         self.ui.cb_disk.removeItem(index)

  1917. 

  1918.         if self.ui.cb_disk.currentIndex() == 0:

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

  1920. 

  1921.     @pyqtSlot(QModelIndex)

  1922.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1923.         filename = self.fDirModel.filePath(modelIndex)

  1924. 

  1925.         if not self.ui.listWidget.isDragUrlValid(filename):

  1926.             return

  1927. 

  1928.         if not self.host.load_file(filename):

  1929.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1930.                              self.tr("Failed to load file"),

  1931.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1932. 

  1933.     # --------------------------------------------------------------------------------------------------------

  1934.     # Transport

  1935. 

  1936.     def refreshTransport(self, forced = False):

  1937.         if not self.ui.l_transport_time.isVisible():

  1938.             return

  1939.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1940.             return

  1941. 

  1942.         timeInfo = self.host.get_transport_info()

  1943.         playing  = timeInfo['playing']

  1944.         frame    = timeInfo['frame']

  1945.         bpm      = timeInfo['bpm']

  1946. 

  1947.         if playing != self.fLastTransportState or forced:

  1948.             if playing:

  1949.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1950.                 self.ui.b_transport_play.setChecked(True)

  1951.                 self.ui.b_transport_play.setIcon(icon)

  1952.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1953.             else:

  1954.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1955.                 self.ui.b_transport_play.setChecked(False)

  1956.                 self.ui.b_transport_play.setIcon(icon)

  1957.                 #self.ui.b_play.setText(self.tr("&Play"))

  1958. 

  1959.             self.fLastTransportState = playing

  1960. 

  1961.         if frame != self.fLastTransportFrame or forced:

  1962.             self.fLastTransportFrame = frame

  1963. 

  1964.             time = frame / self.fSampleRate

  1965.             secs =  time % 60

  1966.             mins = (time / 60) % 60

  1967.             hrs  = (time / 3600) % 60

  1968.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1969. 

  1970.             frame1 =  frame % 1000

  1971.             frame2 = (frame / 1000) % 1000

  1972.             frame3 = (frame / 1000000) % 1000

  1973.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1974. 

  1975.             bar  = timeInfo['bar']

  1976.             beat = timeInfo['beat']

  1977.             tick = timeInfo['tick']

  1978.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1979. 

  1980.         if bpm != self.fLastTransportBPM or forced:

  1981.             self.fLastTransportBPM = bpm

  1982. 

  1983.             if bpm > 0.0:

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

  1985.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1986.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1987.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1988.             else:

  1989.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1990. 

  1991.     # --------------------------------------------------------------------------------------------------------

  1992.     # Transport (menu actions)

  1993. 

  1994.     @pyqtSlot(bool)

  1995.     def slot_transportPlayPause(self, toggled):

  1996.         if self.host.isPlugin or not self.host.is_engine_running():

  1997.             return

  1998. 

  1999.         if toggled:

  2000.             self.host.transport_play()

  2001.         else:

  2002.             self.host.transport_pause()

  2003. 

  2004.         self.refreshTransport()

  2005. 

  2006.     @pyqtSlot()

  2007.     def slot_transportStop(self):

  2008.         if self.host.isPlugin or not self.host.is_engine_running():

  2009.             return

  2010. 

  2011.         self.host.transport_pause()

  2012.         self.host.transport_relocate(0)

  2013. 

  2014.         self.refreshTransport()

  2015. 

  2016.     @pyqtSlot()

  2017.     def slot_transportBackwards(self):

  2018.         if self.host.isPlugin or not self.host.is_engine_running():

  2019.             return

  2020. 

  2021.         newFrame = self.host.get_current_transport_frame() - 100000

  2022. 

  2023.         if newFrame < 0:

  2024.             newFrame = 0

  2025. 

  2026.         self.host.transport_relocate(newFrame)

  2027. 

  2028.     @pyqtSlot(float)

  2029.     def slot_transportBpmChanged(self, newValue):

  2030.         self.host.transport_bpm(newValue)

  2031. 

  2032.     @pyqtSlot()

  2033.     def slot_transportForwards(self):

  2034.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2035.             return

  2036. 

  2037.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2038.         self.host.transport_relocate(newFrame)

  2039. 

  2040.     @pyqtSlot(bool)

  2041.     def slot_transportJackEnabled(self, clicked):

  2042.         if not self.host.is_engine_running():

  2043.             return

  2044.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2045.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2046.                                     self.host.transportMode,

  2047.                                     self.host.transportExtra)

  2048. 

  2049.     @pyqtSlot(bool)

  2050.     def slot_transportLinkEnabled(self, clicked):

  2051.         if not self.host.is_engine_running():

  2052.             return

  2053.         extra = ":link:" if clicked else ""

  2054.         self.host.transportExtra = extra

  2055.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2056.                                     self.host.transportMode,

  2057.                                     self.host.transportExtra)

  2058. 

  2059.     # --------------------------------------------------------------------------------------------------------

  2060.     # Other

  2061. 

  2062.     @pyqtSlot(bool)

  2063.     def slot_xrunClear(self):

  2064.         self.host.clear_engine_xruns()

  2065. 

  2066.     # --------------------------------------------------------------------------------------------------------

  2067.     # Canvas scrollbars

  2068. 

  2069.     @pyqtSlot(int)

  2070.     def slot_horizontalScrollBarChanged(self, value):

  2071.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2072.         if maximum == 0:

  2073.             xp = 0

  2074.         else:

  2075.             xp = float(value) / maximum

  2076.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2077.         self.updateCanvasInitialPos()

  2078. 

  2079.     @pyqtSlot(int)

  2080.     def slot_verticalScrollBarChanged(self, value):

  2081.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2082.         if maximum == 0:

  2083.             yp = 0

  2084.         else:

  2085.             yp = float(value) / maximum

  2086.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2087.         self.updateCanvasInitialPos()

  2088. 

  2089.     # --------------------------------------------------------------------------------------------------------

  2090.     # Canvas keyboard

  2091. 

  2092.     @pyqtSlot(int)

  2093.     def slot_noteOn(self, note):

  2094.         for pluginId in self.fSelectedPlugins:

  2095.             self.host.send_midi_note(pluginId, 0, note, 100)

  2096. 

  2097.             pedit = self.getPluginEditDialog(pluginId)

  2098.             pedit.noteOn(0, note, 100)

  2099. 

  2100.     @pyqtSlot(int)

  2101.     def slot_noteOff(self, note):

  2102.         for pluginId in self.fSelectedPlugins:

  2103.             self.host.send_midi_note(pluginId, 0, note, 0)

  2104. 

  2105.             pedit = self.getPluginEditDialog(pluginId)

  2106.             pedit.noteOff(0, note)

  2107. 

  2108.     # --------------------------------------------------------------------------------------------------------

  2109.     # Canvas keyboard (host callbacks)

  2110. 

  2111.     @pyqtSlot(int, int, int, int)

  2112.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2113.         if pluginId in self.fSelectedPlugins:

  2114.             self.ui.keyboard.sendNoteOn(note, False)

  2115. 

  2116.     @pyqtSlot(int, int, int)

  2117.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2118.         if pluginId in self.fSelectedPlugins:

  2119.             self.ui.keyboard.sendNoteOff(note, False)

  2120. 

  2121.     # --------------------------------------------------------------------------------------------------------

  2122. 

  2123.     @pyqtSlot(int)

  2124.     def slot_handleUpdateCallback(self, pluginId):

  2125.         pitem = self.getPluginItem(pluginId)

  2126. 

  2127.         if pitem is None:

  2128.             return

  2129. 

  2130.         wasCompacted = pitem.isCompacted()

  2131.         isCompacted  = wasCompacted

  2132. 

  2133.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2134.         if not check:

  2135.             return

  2136.         isCompacted = bool(check == "true")

  2137. 

  2138.         if wasCompacted == isCompacted:

  2139.             return

  2140. 

  2141.         pitem.recreateWidget(True)

  2142. 

  2143.     # --------------------------------------------------------------------------------------------------------

  2144.     # MiniCanvas stuff

  2145. 

  2146.     @pyqtSlot()

  2147.     def slot_miniCanvasCheckAll(self):

  2148.         self.slot_miniCanvasCheckSize()

  2149.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2150.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2151. 

  2152.     @pyqtSlot()

  2153.     def slot_miniCanvasCheckSize(self):

  2154.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2155.             return

  2156. 

  2157.         currentIndex = self.ui.tabWidget.currentIndex()

  2158. 

  2159.         if currentIndex == 1:

  2160.             width  = self.ui.graphicsView.width()

  2161.             height = self.ui.graphicsView.height()

  2162.         else:

  2163.             self.ui.tabWidget.blockSignals(True)

  2164.             self.ui.tabWidget.setCurrentIndex(1)

  2165.             width  = self.ui.graphicsView.width()

  2166.             height = self.ui.graphicsView.height()

  2167.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2168.             self.ui.tabWidget.blockSignals(False)

  2169. 

  2170.         self.scene.updateLimits()

  2171. 

  2172.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2173. 

  2174.     @pyqtSlot(float, float)

  2175.     def slot_miniCanvasMoved(self, xp, yp):

  2176.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2177.         vsb = self.ui.graphicsView.verticalScrollBar()

  2178.         hsb.setValue(xp * hsb.maximum())

  2179.         vsb.setValue(yp * vsb.maximum())

  2180.         self.updateCanvasInitialPos()

  2181. 

  2182.     # --------------------------------------------------------------------------------------------------------

  2183.     # Timers

  2184. 

  2185.     def startTimers(self):

  2186.         if self.fIdleTimerFast == 0:

  2187.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2188. 

  2189.         if self.fIdleTimerSlow == 0:

  2190.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2191. 

  2192.     def restartTimersIfNeeded(self):

  2193.         if self.fIdleTimerFast != 0:

  2194.             self.killTimer(self.fIdleTimerFast)

  2195.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2196. 

  2197.         if self.fIdleTimerSlow != 0:

  2198.             self.killTimer(self.fIdleTimerSlow)

  2199.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2200. 

  2201.     def killTimers(self):

  2202.         if self.fIdleTimerFast != 0:

  2203.             self.killTimer(self.fIdleTimerFast)

  2204.             self.fIdleTimerFast = 0

  2205. 

  2206.         if self.fIdleTimerSlow != 0:

  2207.             self.killTimer(self.fIdleTimerSlow)

  2208.             self.fIdleTimerSlow = 0

  2209. 

  2210.     # --------------------------------------------------------------------------------------------------------

  2211.     # Misc

  2212. 

  2213.     @pyqtSlot(int)

  2214.     def slot_tabChanged(self, index):

  2215.         if index != 1:

  2216.             return

  2217. 

  2218.         self.ui.graphicsView.setFocus()

  2219. 

  2220.     @pyqtSlot(int)

  2221.     def slot_handleReloadAllCallback(self, pluginId):

  2222.         if pluginId >= self.fPluginCount:

  2223.             return

  2224. 

  2225.         pitem = self.fPluginList[pluginId]

  2226.         if pitem is None:

  2227.             return

  2228. 

  2229.         pitem.recreateWidget()

  2230. 

  2231.     # --------------------------------------------------------------------------------------------------------

  2232. 

  2233.     @pyqtSlot(int, int, str)

  2234.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2235.         if opcode == NSM_CALLBACK_INIT:

  2236.             return

  2237. 

  2238.         # Error

  2239.         elif opcode == NSM_CALLBACK_ERROR:

  2240.             pass

  2241. 

  2242.         # Reply

  2243.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2244.             self.fFirstEngineInit    = False

  2245.             self.fSessionManagerName = valueStr

  2246.             self.setProperWindowTitle()

  2247. 

  2248.         # Open

  2249.         elif opcode == NSM_CALLBACK_OPEN:

  2250.             self.fClientName      = os.path.basename(valueStr)

  2251.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2252.             self.setProperWindowTitle()

  2253. 

  2254.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2255.             self.slot_engineStop(True)

  2256.             return

  2257. 

  2258.         # Save

  2259.         elif opcode == NSM_CALLBACK_SAVE:

  2260.             self.saveProjectNow()

  2261. 

  2262.         # Session is Loaded

  2263.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2264.             pass

  2265. 

  2266.         # Show Optional Gui

  2267.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2268.             self.show()

  2269. 

  2270.         # Hide Optional Gui

  2271.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2272.             self.hide()

  2273. 

  2274.         self.host.nsm_ready(opcode)

  2275. 

  2276.     # --------------------------------------------------------------------------------------------------------

  2277. 

  2278.     def fixLogText(self, text):

  2279.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2280. 

  2281.     @pyqtSlot(int, int, int, int, float, str)

  2282.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2283.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2284. 

  2285.     @pyqtSlot(str)

  2286.     def slot_handleInfoCallback(self, info):

  2287.         QMessageBox.information(self, "Information", info)

  2288. 

  2289.     @pyqtSlot(str)

  2290.     def slot_handleErrorCallback(self, error):

  2291.         QMessageBox.critical(self, "Error", error)

  2292. 

  2293.     @pyqtSlot()

  2294.     def slot_handleQuitCallback(self):

  2295.         self.fIsProjectLoading = False

  2296.         self.killTimers()

  2297.         self.removeAllPlugins()

  2298.         self.projectLoadingFinished()

  2299. 

  2300.     @pyqtSlot(int)

  2301.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2302.         # FIXME

  2303.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2304.             patchcanvas.redrawPluginGroup(pluginId)

  2305. 

  2306.     # --------------------------------------------------------------------------------------------------------

  2307. 

  2308.     @pyqtSlot()

  2309.     def slot_handleSIGUSR1(self):

  2310.         print("Got SIGUSR1 -> Saving project now")

  2311.         self.slot_fileSave()

  2312. 

  2313.     @pyqtSlot()

  2314.     def slot_handleSIGTERM(self):

  2315.         print("Got SIGTERM -> Closing now")

  2316.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2317.         self.slot_engineStop(True)

  2318. 

  2319.     # --------------------------------------------------------------------------------------------------------

  2320.     # Internal stuff

  2321. 

  2322.     def getExtraPtr(self, plugin):

  2323.         ptype = plugin['type']

  2324. 

  2325.         if ptype == PLUGIN_LADSPA:

  2326.             uniqueId = plugin['uniqueId']

  2327. 

  2328.             self.maybeLoadRDFs()

  2329. 

  2330.             for rdfItem in self.fLadspaRdfList:

  2331.                 if rdfItem.UniqueID == uniqueId:

  2332.                     return pointer(rdfItem)

  2333. 

  2334.         elif ptype == PLUGIN_SF2:

  2335.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2336.                 return self._true

  2337. 

  2338.         return None

  2339. 

  2340.     def maybeLoadRDFs(self):

  2341.         if not self.fLadspaRdfNeedsUpdate:

  2342.             return

  2343. 

  2344.         self.fLadspaRdfNeedsUpdate = False

  2345.         self.fLadspaRdfList = []

  2346. 

  2347.         if not haveLRDF:

  2348.             return

  2349. 

  2350.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2351.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2352. 

  2353.         if os.path.exists(frLadspaFile):

  2354.             frLadspa = open(frLadspaFile, 'r')

  2355. 

  2356.             try:

  2357.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2358.             except:

  2359.                 pass

  2360. 

  2361.             frLadspa.close()

  2362. 

  2363.     # --------------------------------------------------------------------------------------------------------

  2364. 

  2365.     def getPluginCount(self):

  2366.         return self.fPluginCount

  2367. 

  2368.     def getPluginItem(self, pluginId):

  2369.         if pluginId >= self.fPluginCount:

  2370.             return None

  2371. 

  2372.         pitem = self.fPluginList[pluginId]

  2373.         if pitem is None:

  2374.             return None

  2375.         #if False:

  2376.             #return CarlaRackItem(self, 0, False)

  2377. 

  2378.         return pitem

  2379. 

  2380.     def getPluginEditDialog(self, pluginId):

  2381.         if pluginId >= self.fPluginCount:

  2382.             return None

  2383. 

  2384.         pitem = self.fPluginList[pluginId]

  2385.         if pitem is None:

  2386.             return None

  2387.         if False:

  2388.             return PluginEdit(self, self.host, 0)

  2389. 

  2390.         return pitem.getEditDialog()

  2391. 

  2392.     def getPluginSlotWidget(self, pluginId):

  2393.         if pluginId >= self.fPluginCount:

  2394.             return None

  2395. 

  2396.         pitem = self.fPluginList[pluginId]

  2397.         if pitem is None:

  2398.             return None

  2399.         #if False:

  2400.             #return AbstractPluginSlot()

  2401. 

  2402.         return pitem.getWidget()

  2403. 

  2404.     # --------------------------------------------------------------------------------------------------------

  2405. 

  2406.     def waitForPendingEvents(self):

  2407.         pass

  2408. 

  2409.     # --------------------------------------------------------------------------------------------------------

  2410.     # show/hide event

  2411. 

  2412.     def showEvent(self, event):

  2413.         self.getAndRefreshRuntimeInfo()

  2414.         self.refreshTransport(True)

  2415.         QMainWindow.showEvent(self, event)

  2416. 

  2417.         if QT_VERSION >= 0x50600:

  2418.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2419. 

  2420.         # set our gui as parent for all plugins UIs

  2421.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2422.             if MACOS:

  2423.                 nsViewPtr = int(self.winId())

  2424.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2425.             else:

  2426.                 winIdStr = "%x" % int(self.winId())

  2427.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2428. 

  2429.     def hideEvent(self, event):

  2430.         # disable parent

  2431.         if not (self.host.isControl or self.host.isPlugin):

  2432.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2433. 

  2434.         QMainWindow.hideEvent(self, event)

  2435. 

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

  2437.     # resize event

  2438. 

  2439.     def resizeEvent(self, event):

  2440.         QMainWindow.resizeEvent(self, event)

  2441. 

  2442.         if self.fWithCanvas:

  2443.             self.slot_miniCanvasCheckSize()

  2444. 

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

  2446.     # timer event

  2447. 

  2448.     def refreshRuntimeInfo(self, load, xruns):

  2449.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2450.         txt2 = "" if (xruns == 1) else "s"

  2451.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2452.         self.ui.pb_dsp_load.setValue(int(load))

  2453. 

  2454.     def getAndRefreshRuntimeInfo(self):

  2455.         if not self.ui.pb_dsp_load.isVisible():

  2456.             return

  2457.         if not self.host.is_engine_running():

  2458.             return

  2459.         info = self.host.get_runtime_engine_info()

  2460.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2461. 

  2462.     def idleFast(self):

  2463.         self.host.engine_idle()

  2464.         self.refreshTransport()

  2465. 

  2466.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2467.             return

  2468. 

  2469.         for pitem in self.fPluginList:

  2470.             if pitem is None:

  2471.                 break

  2472. 

  2473.             pitem.getWidget().idleFast()

  2474. 

  2475.         for pluginId in self.fSelectedPlugins:

  2476.             self.fPeaksCleared = False

  2477.             if self.ui.peak_in.isVisible():

  2478.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2479.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2480.             if self.ui.peak_out.isVisible():

  2481.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2482.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2483.             return

  2484. 

  2485.         if self.fPeaksCleared:

  2486.             return

  2487. 

  2488.         self.fPeaksCleared = True

  2489.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2490.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2491.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2492.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2493. 

  2494.     def idleSlow(self):

  2495.         self.getAndRefreshRuntimeInfo()

  2496. 

  2497.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2498.             return

  2499. 

  2500.         for pitem in self.fPluginList:

  2501.             if pitem is None:

  2502.                 break

  2503. 

  2504.             pitem.getWidget().idleSlow()

  2505. 

  2506.     def timerEvent(self, event):

  2507.         if event.timerId() == self.fIdleTimerFast:

  2508.             self.idleFast()

  2509. 

  2510.         elif event.timerId() == self.fIdleTimerSlow:

  2511.             self.idleSlow()

  2512. 

  2513.         QMainWindow.timerEvent(self, event)

  2514. 

  2515.     # --------------------------------------------------------------------------------------------------------

  2516.     # color/style change event

  2517. 

  2518.     def changeEvent(self, event):

  2519.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2520.             self.updateStyle()

  2521.         QWidget.changeEvent(self, event)

  2522. 

  2523.     def updateStyle(self):

  2524.         # Rack padding images setup

  2525.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2526.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2527. 

  2528.         min_value = 0.07

  2529. 

  2530.         if PYQT_VERSION >= 0x50600:

  2531.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2532.         else:

  2533.             value_fix = 1.5

  2534. 

  2535.         bg_color = self.ui.rack.palette().window().color()

  2536.         bg_value = 1.0 - bg_color.blackF()

  2537.         if bg_value != 0.0 and bg_value < min_value:

  2538.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2539.         else:

  2540.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2541. 

  2542.         painter = QPainter()

  2543.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2544. 

  2545.         painter.begin(rack_imgL)

  2546.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2547.         painter.setBrush(pad_color)

  2548.         painter.drawRect(fillRect)

  2549.         painter.end()

  2550.         rack_pixmapL = QPixmap(rack_imgL)

  2551.         self.imgL_palette = QPalette()

  2552.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2553.         self.ui.pad_left.setPalette(self.imgL_palette)

  2554.         self.ui.pad_left.setAutoFillBackground(True)

  2555. 

  2556.         painter.begin(rack_imgR)

  2557.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2558.         painter.setBrush(pad_color)

  2559.         painter.drawRect(fillRect)

  2560.         painter.end()

  2561.         rack_pixmapR = QPixmap(rack_imgR)

  2562.         self.imgR_palette = QPalette()

  2563.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2564.         self.ui.pad_right.setPalette(self.imgR_palette)

  2565.         self.ui.pad_right.setAutoFillBackground(True)

  2566. 

  2567.     # --------------------------------------------------------------------------------------------------------

  2568.     # paint event

  2569. 

  2570.     #def paintEvent(self, event):

  2571.         #QMainWindow.paintEvent(self, event)

  2572. 

  2573.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2574.             #return

  2575. 

  2576.         #painter = QPainter(self)

  2577.         #painter.setBrush(QColor(36, 36, 36))

  2578.         #painter.setPen(QColor(62, 62, 62))

  2579.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2580. 

  2581.     # --------------------------------------------------------------------------------------------------------

  2582.     # close event

  2583. 

  2584.     def shouldIgnoreClose(self):

  2585.         if self.host.isControl or self.host.isPlugin:

  2586.             return False

  2587.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2588.             return False

  2589.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2590.             return QMessageBox.question(self, self.tr("Quit"),

  2591.                                               self.tr("Are you sure you want to quit Carla?"),

  2592.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2593.         return False

  2594. 

  2595.     def closeEvent(self, event):

  2596.         if self.shouldIgnoreClose():

  2597.             event.ignore()

  2598.             return

  2599. 

  2600.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2601.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2602.             self.fMacClosingHelper = False

  2603.             event.ignore()

  2604. 

  2605.             for i in reversed(range(self.fPluginCount)):

  2606.                 self.host.show_custom_ui(i, False)

  2607. 

  2608.             QTimer.singleShot(100, self.close)

  2609.             return

  2610. 

  2611.         self.killTimers()

  2612.         self.saveSettings()

  2613. 

  2614.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2615.             if not self.slot_engineStop(True):

  2616.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2617.                 event.ignore()

  2618.                 return

  2619. 

  2620.         QMainWindow.closeEvent(self, event)

  2621. 

  2622. # ------------------------------------------------------------------------------------------------

  2623. # Canvas callback

  2624. 

  2625. def canvasCallback(action, value1, value2, valueStr):

  2626.     host = gCarla.gui.host

  2627. 

  2628.     if action == patchcanvas.ACTION_GROUP_INFO:

  2629.         pass

  2630. 

  2631.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2632.         pass

  2633. 

  2634.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2635.         groupId = value1

  2636.         patchcanvas.splitGroup(groupId)

  2637.         gCarla.gui.updateMiniCanvasLater()

  2638. 

  2639.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2640.         groupId = value1

  2641.         patchcanvas.joinGroup(groupId)

  2642.         gCarla.gui.updateMiniCanvasLater()

  2643. 

  2644.     elif action == patchcanvas.ACTION_PORT_INFO:

  2645.         pass

  2646. 

  2647.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2648.         pass

  2649. 

  2650.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2651.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2652. 

  2653.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2654.             print("Connection failed:", host.get_last_error())

  2655. 

  2656.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2657.         connectionId = value1

  2658. 

  2659.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2660.             print("Disconnect failed:", host.get_last_error())

  2661. 

  2662.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2663.         pluginId = value1

  2664. 

  2665.         if not host.clone_plugin(pluginId):

  2666.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2667.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2668. 

  2669.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2670.         pluginId = value1

  2671.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2672. 

  2673.         if pwidget is not None:

  2674.             pwidget.showEditDialog()

  2675. 

  2676.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2677.         pluginId = value1

  2678.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2679. 

  2680.         if pwidget is not None:

  2681.             pwidget.showRenameDialog()

  2682. 

  2683.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2684.         pluginId = value1

  2685.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2686. 

  2687.         if pwidget is not None:

  2688.             pwidget.showReplaceDialog()

  2689. 

  2690.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2691.         pluginId = value1

  2692. 

  2693.         if not host.remove_plugin(pluginId):

  2694.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2695.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2696. 

  2697.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2698.         pluginId = value1

  2699.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2700. 

  2701.         if pwidget is not None:

  2702.             pwidget.showCustomUI()

  2703. 

  2704.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2705.         gCarla.gui.showPluginActionsMenu()

  2706. 

  2707.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2708.         # FIXME

  2709.         if gCarla.gui.fPluginCount == 0: return

  2710.         pluginId = value1

  2711.         width, height = [int(v) for v in valueStr.split(":")]

  2712.         return host.render_inline_display(pluginId, width, height)

  2713. 

  2714. # ------------------------------------------------------------------------------------------------------------

  2715. # Engine callback

  2716. 

  2717. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2718.     # kdevelop likes this :)

  2719.     if False: host = CarlaHostNull()

  2720. 

  2721.     valueStr = charPtrToString(valueStr)

  2722. 

  2723.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2724.         host.processMode   = value1

  2725.         host.transportMode = value2

  2726.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2727.         host.processMode   = value1

  2728.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2729.         host.transportMode  = value1

  2730.         host.transportExtra = valueStr

  2731. 

  2732.     if action == ENGINE_CALLBACK_DEBUG:

  2733.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2734.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2735.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2736.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2737.         host.PluginRemovedCallback.emit(pluginId)

  2738.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2739.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2740.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2741.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2742.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2743.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2744.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2745.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2746.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2747.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2748.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2749.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2750.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2751.         host.ProgramChangedCallback.emit(pluginId, value1)

  2752.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2753.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2754.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2755.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2756.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2757.         host.UiStateChangedCallback.emit(pluginId, value1)

  2758.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2759.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2760.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2761.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2762.     elif action == ENGINE_CALLBACK_UPDATE:

  2763.         host.UpdateCallback.emit(pluginId)

  2764.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2765.         host.ReloadInfoCallback.emit(pluginId)

  2766.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2767.         host.ReloadParametersCallback.emit(pluginId)

  2768.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2769.         host.ReloadProgramsCallback.emit(pluginId)

  2770.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2771.         host.ReloadAllCallback.emit(pluginId)

  2772.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2773.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2774.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2775.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2776.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2777.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2778.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2779.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2780.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2781.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2782.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2783.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2784.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2785.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2786.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2787.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2788.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2789.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2790.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2791.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2792.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2793.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2794.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2795.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2796.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2797.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2798.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2799.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2800.         host.EngineStoppedCallback.emit()

  2801.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2802.         host.ProcessModeChangedCallback.emit(value1)

  2803.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2804.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2805.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2806.         host.BufferSizeChangedCallback.emit(value1)

  2807.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2808.         host.SampleRateChangedCallback.emit(valuef)

  2809.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2810.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2811.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2812.         host.ProjectLoadFinishedCallback.emit()

  2813.     elif action == ENGINE_CALLBACK_NSM:

  2814.         host.NSMCallback.emit(value1, value2, valueStr)

  2815.     elif action == ENGINE_CALLBACK_IDLE:

  2816.         QApplication.processEvents()

  2817.     elif action == ENGINE_CALLBACK_INFO:

  2818.         host.InfoCallback.emit(valueStr)

  2819.     elif action == ENGINE_CALLBACK_ERROR:

  2820.         host.ErrorCallback.emit(valueStr)

  2821.     elif action == ENGINE_CALLBACK_QUIT:

  2822.         host.QuitCallback.emit()

  2823.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2824.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2825.     else:

  2826.         print("unhandled action", action)

  2827. 

  2828. # ------------------------------------------------------------------------------------------------------------

  2829. # File callback

  2830. 

  2831. def fileCallback(ptr, action, isDir, title, filter):

  2832.     title  = charPtrToString(title)

  2833.     filter = charPtrToString(filter)

  2834. 

  2835.     if action == FILE_CALLBACK_OPEN:

  2836.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2837.     elif action == FILE_CALLBACK_SAVE:

  2838.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2839.     else:

  2840.         ret, ok = ("", "")

  2841. 

  2842.     # FIXME use ok value, test if it works as expected

  2843.     if not ret:

  2844.         return None

  2845. 

  2846.     # FIXME

  2847.     global fileRet

  2848.     fileRet = c_char_p(ret.encode("utf-8"))

  2849.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2850.     return retval.contents.value

  2851. 

  2852. # ------------------------------------------------------------------------------------------------------------

  2853. # Init host

  2854. 

  2855. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2856.     pathBinaries, pathResources = getPaths(libPrefix)

  2857. 

  2858.     # --------------------------------------------------------------------------------------------------------

  2859.     # Check if we should open main lib as local or global

  2860. 

  2861.     settings = QSettings("falkTX", "Carla2")

  2862. 

  2863.     try:

  2864.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2865.     except:

  2866.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2867. 

  2868.     # --------------------------------------------------------------------------------------------------------

  2869.     # Fail if binary dir is not found

  2870. 

  2871.     if not os.path.exists(pathBinaries):

  2872.         if failError:

  2873.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2874.             sys.exit(1)

  2875.         return

  2876. 

  2877.     # --------------------------------------------------------------------------------------------------------

  2878.     # Set Carla library name

  2879. 

  2880.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2881.     libname   = os.path.join(pathBinaries, libname)

  2882.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2883. 

  2884.     # --------------------------------------------------------------------------------------------------------

  2885.     # Print info

  2886. 

  2887.     print("Carla %s started, status:" % VERSION)

  2888.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2889.     print("  Qt version:     %s" % QT_VERSION_STR)

  2890.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2891.     print("  Binary dir:     %s" % pathBinaries)

  2892.     print("  Resources dir:  %s" % pathResources)

  2893. 

  2894.     # --------------------------------------------------------------------------------------------------------

  2895.     # Init host

  2896. 

  2897.     if failError:

  2898.         # no try

  2899.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2900.     else:

  2901.         try:

  2902.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2903.         except:

  2904.             host = CarlaHostQtNull()

  2905. 

  2906.     host.isControl = isControl

  2907.     host.isPlugin  = isPlugin

  2908. 

  2909.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2910.     host.set_file_callback(fileCallback)

  2911. 

  2912.     # If it's a plugin the paths are already set

  2913.     if not isPlugin:

  2914.         host.pathBinaries  = pathBinaries

  2915.         host.pathResources = pathResources

  2916.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2917.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2918. 

  2919.         if not isControl:

  2920.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2921. 

  2922.     # --------------------------------------------------------------------------------------------------------

  2923.     # Init utils

  2924. 

  2925.     gCarla.utils = CarlaUtils(utilsname)

  2926.     gCarla.utils.set_process_name(os.path.basename(initName))

  2927. 

  2928.     try:

  2929.         sys.stdout.flush()

  2930.     except:

  2931.         pass

  2932. 

  2933.     sys.stdout = CarlaPrint(False)

  2934.     sys.stderr = CarlaPrint(True)

  2935.     sys.excepthook = sys_excepthook

  2936. 

  2937.     # --------------------------------------------------------------------------------------------------------

  2938.     # Done

  2939. 

  2940.     return host

  2941. 

  2942. # ------------------------------------------------------------------------------------------------------------

  2943. # Load host settings

  2944. 

  2945. def loadHostSettings(host):

  2946.     # kdevelop likes this :)

  2947.     if False: host = CarlaHostNull()

  2948. 

  2949.     settings = QSettings("falkTX", "Carla2")

  2950. 

  2951.     try:

  2952.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2953.     except:

  2954.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2955. 

  2956.     try:

  2957.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2958.     except:

  2959.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2960. 

  2961.     try:

  2962.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2963.     except:

  2964.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2965. 

  2966.     try:

  2967.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2968.     except:

  2969.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2970. 

  2971.     try:

  2972.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2973.     except:

  2974.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2975. 

  2976.     try:

  2977.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2978.     except:

  2979.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2980. 

  2981.     try:

  2982.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2983.     except:

  2984.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2985. 

  2986.     try:

  2987.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2988.     except:

  2989.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2990. 

  2991.     try:

  2992.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2993.     except:

  2994.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2995. 

  2996.     try:

  2997.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2998.     except:

  2999.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  3000. 

  3001.     try:

  3002.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  3003.     except:

  3004.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  3005. 

  3006.     try:

  3007.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  3008.     except:

  3009.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  3010. 

  3011.     try:

  3012.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  3013.     except:

  3014.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  3015. 

  3016.     if host.isPlugin:

  3017.         return

  3018. 

  3019.     try:

  3020.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  3021.     except:

  3022.         host.transportExtra = ""

  3023. 

  3024.     # enums

  3025.     if host.audioDriverForced is None:

  3026.         try:

  3027.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  3028.         except:

  3029.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  3030. 

  3031.     if not host.processModeForced:

  3032.         try:

  3033.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  3034.         except:

  3035.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  3036. 

  3037.     host.nextProcessMode = host.processMode

  3038. 

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

  3040.     # fix things if needed

  3041. 

  3042.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3043.         if LADISH_APP_NAME:

  3044.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3045.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3046. 

  3047.         else:

  3048.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3049. 

  3050.     if gCarla.nogui:

  3051.         host.showLogs = False

  3052. 

  3053.     # --------------------------------------------------------------------------------------------------------

  3054.     # run headless host now if nogui option enabled

  3055. 

  3056.     if gCarla.nogui:

  3057.         runHostWithoutUI(host)

  3058. 

  3059. # ------------------------------------------------------------------------------------------------------------

  3060. # Set host settings

  3061. 

  3062. def setHostSettings(host):

  3063.     # kdevelop likes this :)

  3064.     if False: host = CarlaHostNull()

  3065. 

  3066.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3067.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3068.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3069.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3070.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3071.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3072.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3073. 

  3074.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3075.         return

  3076. 

  3077.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3078.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3079.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3080. 

  3081. # ------------------------------------------------------------------------------------------------------------

  3082. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3083. 

  3084. def setEngineSettings(host):

  3085.     # kdevelop likes this :)

  3086.     if False: host = CarlaHostNull()

  3087. 

  3088.     # --------------------------------------------------------------------------------------------------------

  3089.     # do nothing if control

  3090. 

  3091.     if host.isControl:

  3092.         return "Control"

  3093. 

  3094.     # --------------------------------------------------------------------------------------------------------

  3095. 

  3096.     settings = QSettings("falkTX", "Carla2")

  3097. 

  3098.     # --------------------------------------------------------------------------------------------------------

  3099.     # main settings

  3100. 

  3101.     setHostSettings(host)

  3102. 

  3103.     # --------------------------------------------------------------------------------------------------------

  3104.     # plugin paths

  3105. 

  3106.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  3107.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  3108.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  3109.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  3110.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  3111.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  3112.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  3113. 

  3114.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3115.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3116.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3117.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3118.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3119.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3120.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3121. 

  3122.     # --------------------------------------------------------------------------------------------------------

  3123.     # don't continue if plugin

  3124. 

  3125.     if host.isPlugin:

  3126.         return "Plugin"

  3127. 

  3128.     # --------------------------------------------------------------------------------------------------------

  3129.     # osc settings

  3130. 

  3131.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3132. 

  3133.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3134.         portNumTCP = -1

  3135.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3136.         portNumTCP = 0

  3137.     else:

  3138.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3139. 

  3140.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3141.         portNumUDP = -1

  3142.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3143.         portNumUDP = 0

  3144.     else:

  3145.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3146. 

  3147.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3148.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3149.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3150. 

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

  3152.     # wine settings

  3153. 

  3154.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3155.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3156.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3157.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3158.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3159.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3160. 

  3161.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3162.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3163.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3164.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3165.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3166.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3167. 

  3168.     # --------------------------------------------------------------------------------------------------------

  3169.     # driver and device settings

  3170. 

  3171.     # driver name

  3172.     if host.audioDriverForced is not None:

  3173.         audioDriver = host.audioDriverForced

  3174.     else:

  3175.         try:

  3176.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3177.         except:

  3178.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3179. 

  3180.     # driver options

  3181.     try:

  3182.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3183.     except:

  3184.         audioDevice = ""

  3185. 

  3186.     try:

  3187.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3188.     except:

  3189.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3190. 

  3191.     try:

  3192.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3193.     except:

  3194.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3195. 

  3196.     try:

  3197.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3198.     except:

  3199.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3200. 

  3201.     # Only setup audio things if engine is not running

  3202.     if not host.is_engine_running():

  3203.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3204.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3205. 

  3206.         if not audioDriver.startswith("JACK"):

  3207.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3208.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3209.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3210. 

  3211.     # --------------------------------------------------------------------------------------------------------

  3212.     # fix things if needed

  3213. 

  3214.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3215.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3216.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3217. 

  3218.     # --------------------------------------------------------------------------------------------------------

  3219.     # return selected driver name

  3220. 

  3221.     return audioDriver

  3222. 

  3223. # ------------------------------------------------------------------------------------------------------------

  3224. # Run Carla without showing UI

  3225. 

  3226. def runHostWithoutUI(host):

  3227.     # kdevelop likes this :)

  3228.     if False: host = CarlaHostNull()

  3229. 

  3230.     # --------------------------------------------------------------------------------------------------------

  3231.     # Some initial checks

  3232. 

  3233.     if not gCarla.nogui:

  3234.         return

  3235. 

  3236.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3237. 

  3238.     if not projectFile:

  3239.         print("Carla no-gui mode can only be used together with a project file.")

  3240.         sys.exit(1)

  3241. 

  3242.     # --------------------------------------------------------------------------------------------------------

  3243.     # Additional imports

  3244. 

  3245.     from time import sleep

  3246. 

  3247.     # --------------------------------------------------------------------------------------------------------

  3248.     # Init engine

  3249. 

  3250.     audioDriver = setEngineSettings(host)

  3251.     if not host.engine_init(audioDriver, "Carla"):

  3252.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3253.         sys.exit(1)

  3254. 

  3255.     if not host.load_project(projectFile):

  3256.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3257.         host.engine_close()

  3258.         sys.exit(1)

  3259. 

  3260.     # --------------------------------------------------------------------------------------------------------

  3261.     # Idle

  3262. 

  3263.     print("Carla ready!")

  3264. 

  3265.     while host.is_engine_running() and not gCarla.term:

  3266.         host.engine_idle()

  3267.         sleep(0.0333) # 30 Hz

  3268. 

  3269.     # --------------------------------------------------------------------------------------------------------

  3270.     # Stop

  3271. 

  3272.     host.engine_close()

  3273.     sys.exit(0)

  3274. 

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