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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. from PyQt5.Qt import PYQT_VERSION

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

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

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

  28. 

  29. # ------------------------------------------------------------------------------------------------------------

  30. # Imports (Custom)

  31. 

  32. import ui_carla_host

  33. 

  34. from carla_app import *

  35. from carla_database import *

  36. from carla_settings import *

  37. from carla_utils import *

  38. from carla_widgets import *

  39. 

  40. from patchcanvas import patchcanvas

  41. from widgets.digitalpeakmeter import DigitalPeakMeter

  42. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  43. 

  44. # ------------------------------------------------------------------------------------------------------------

  45. # Try Import OpenGL

  46. 

  47. try:

  48.     from PyQt5.QtOpenGL import QGLWidget

  49.     hasGL = True

  50. except:

  51.     hasGL = False

  52. 

  53. # ------------------------------------------------------------------------------------------------------------

  54. # Safe exception hook, needed for PyQt5

  55. 

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

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

  58. 

  59. # ------------------------------------------------------------------------------------------------------------

  60. # Session Management support

  61. 

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

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

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

  65. 

  66. # ------------------------------------------------------------------------------------------------------------

  67. # Small print helper

  68. 

  69. def processMode2Str(processMode):

  70.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  71.         return "Single client"

  72.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  73.         return "Multi client"

  74.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  75.         return "Continuous Rack"

  76.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  77.         return "Patchbay"

  78.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  79.         return "Bridge"

  80.     return "Unknown"

  81. 

  82. # ------------------------------------------------------------------------------------------------------------

  83. # Carla Print class

  84. 

  85. class CarlaPrint:

  86.     def __init__(self, err):

  87.         self.err = err

  88. 

  89.     def flush(self):

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

  91. 

  92.     def write(self, string):

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

  94. 

  95. # ------------------------------------------------------------------------------------------------------------

  96. # Host Window

  97. 

  98. class HostWindow(QMainWindow):

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

  100.     # signals

  101.     SIGTERM = pyqtSignal()

  102.     SIGUSR1 = pyqtSignal()

  103. 

  104.     # CustomActions

  105.     CUSTOM_ACTION_NONE         = 0

  106.     CUSTOM_ACTION_APP_CLOSE    = 1

  107.     CUSTOM_ACTION_PROJECT_LOAD = 2

  108. 

  109.     # --------------------------------------------------------------------------------------------------------

  110. 

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

  112.         QMainWindow.__init__(self, parent)

  113.         self.host = host

  114.         self.ui = ui_carla_host.Ui_CarlaHostW()

  115.         self.ui.setupUi(self)

  116.         gCarla.gui = self

  117. 

  118.         if False:

  119.             # kdevelop likes this :)

  120.             host = CarlaHostNull()

  121.             self.host = host

  122. 

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

  124. 

  125.         self.fParentOrSelf = parent or self

  126. 

  127.         # ----------------------------------------------------------------------------------------------------

  128.         # Internal stuff

  129. 

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

  131.         self.fIdleTimerFast = 0

  132.         self.fIdleTimerSlow = 0

  133. 

  134.         self.fLadspaRdfNeedsUpdate = True

  135.         self.fLadspaRdfList = []

  136. 

  137.         self.fPluginCount = 0

  138.         self.fPluginList  = []

  139. 

  140.         self.fProjectFilename  = ""

  141.         self.fIsProjectLoading = False

  142.         self.fCurrentlyRemovingAllPlugins = False

  143. 

  144.         self.fLastTransportBPM   = 0.0

  145.         self.fLastTransportFrame = 0

  146.         self.fLastTransportState = False

  147.         self.fBufferSize         = 0

  148.         self.fSampleRate         = 0.0

  149.         self.fOscAddressTCP      = ""

  150.         self.fOscAddressUDP      = ""

  151. 

  152.         if MACOS:

  153.             self.fMacClosingHelper = True

  154. 

  155.         # CancelableActionCallback Box

  156.         self.fCancelableActionBox = None

  157. 

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

  159.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  160. 

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

  162.         self.fFirstEngineInit = True

  163. 

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

  165.         self.fSavedSettings = {}

  166. 

  167.         if host.isControl:

  168.             self.fClientName         = "Carla-Control"

  169.             self.fSessionManagerName = "Control"

  170.         elif host.isPlugin:

  171.             self.fClientName         = "Carla-Plugin"

  172.             self.fSessionManagerName = "Plugin"

  173.         elif LADISH_APP_NAME:

  174.             self.fClientName         = LADISH_APP_NAME

  175.             self.fSessionManagerName = "LADISH"

  176.         elif NSM_URL and host.nsmOK:

  177.             self.fClientName         = "Carla.tmp"

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

  179.         else:

  180.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  181.             self.fSessionManagerName = ""

  182. 

  183.         # ----------------------------------------------------------------------------------------------------

  184.         # Internal stuff (patchbay)

  185. 

  186.         self.fExportImage = QImage()

  187. 

  188.         self.fPeaksCleared = True

  189. 

  190.         self.fExternalPatchbay = False

  191.         self.fSelectedPlugins  = []

  192. 

  193.         self.fCanvasWidth  = 0

  194.         self.fCanvasHeight = 0

  195.         self.fMiniCanvasUpdateTimeout = 0

  196. 

  197.         self.fWithCanvas = withCanvas

  198. 

  199.         # ----------------------------------------------------------------------------------------------------

  200.         # Set up GUI (engine stopped)

  201. 

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

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

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

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

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

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

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

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

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

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

  212. 

  213.             if self.host.isControl:

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

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

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

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

  218.             else:

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

  220. 

  221.                 if not withCanvas:

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

  223. 

  224.         else:

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

  226. 

  227.             if WINDOWS:

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

  229. 

  230.         if self.host.isControl:

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

  232.         else:

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

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

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

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

  237. 

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

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

  240. 

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

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

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

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

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

  246. 

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

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

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

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

  251. 

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

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

  254. 

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

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

  257. 

  258.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  276.             self.ui.tw_miniCanvas.hide()

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

  278.             if WINDOWS:

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

  280. 

  281.         # ----------------------------------------------------------------------------------------------------

  282.         # Set up GUI (disk)

  283. 

  284.         exts = gCarla.utils.get_supported_file_extensions()

  285. 

  286.         self.fDirModel = QFileSystemModel(self)

  287.         self.fDirModel.setRootPath(HOME)

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

  289. 

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

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

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

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

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

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

  296. 

  297.         # ----------------------------------------------------------------------------------------------------

  298.         # Set up GUI (transport)

  299. 

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

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

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

  303. 

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

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

  306. 

  307.         if minLabelWidth < labelTimeWidth:

  308.             minLabelWidth = labelTimeWidth

  309.         if minLabelWidth < labelBBTWidth:

  310.             minLabelWidth = labelBBTWidth

  311. 

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

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

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

  315. 

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

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

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

  319. 

  320.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  333. 

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

  335. 

  336.         # ----------------------------------------------------------------------------------------------------

  337.         # Set up GUI (rack)

  338. 

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

  340. 

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

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

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

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

  345. 

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

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

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

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

  350. 

  351.         self.updateStyle()

  352. 

  353.         self.ui.rack.setStyleSheet("""

  354.           CarlaRackList#CarlaRackList {

  355.             background-color: black;

  356.           }

  357.         """)

  358. 

  359.         # ----------------------------------------------------------------------------------------------------

  360.         # Set up GUI (patchbay)

  361. 

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

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

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

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

  366. 

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

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

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

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

  371. 

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

  373.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  375. 

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

  377. 

  378.         self.ui.miniCanvasPreview.setRealParent(self)

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

  380. 

  381.         # ----------------------------------------------------------------------------------------------------

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

  383. 

  384.         if MACOS:

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

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

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

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

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

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

  391. 

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

  393.         # Load Settings

  394. 

  395.         self.loadSettings(True)

  396. 

  397.         # ----------------------------------------------------------------------------------------------------

  398.         # Set-up Canvas

  399. 

  400.         if withCanvas:

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

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

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

  404. 

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

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

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

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

  409. 

  410.             self.setupCanvas()

  411. 

  412.         # ----------------------------------------------------------------------------------------------------

  413.         # Connect actions to functions

  414. 

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

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

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

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

  419. 

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

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

  422. 

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

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

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

  426. 

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

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

  429. 

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

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

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

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

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

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

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

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

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

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

  440. 

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

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

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

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

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

  446. 

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

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

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

  450. 

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

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

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

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

  455. 

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

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

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

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

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

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

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

  463. 

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

  465. 

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

  467. 

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

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

  470. 

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

  472. 

  473.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  491. 

  492.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  493.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  494. 

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

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

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

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

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

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

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

  502. 

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

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

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

  506. 

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

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

  509. 

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

  511. 

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

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

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

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

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

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

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

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

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

  521. 

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

  523. 

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

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

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

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

  528. 

  529.         # ----------------------------------------------------------------------------------------------------

  530.         # Final setup

  531. 

  532.         self.ui.text_logs.clear()

  533.         self.setProperWindowTitle()

  534. 

  535.         # Disable non-supported features

  536.         features = gCarla.utils.get_supported_features()

  537. 

  538.         if "link" not in features:

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

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

  541. 

  542.         if "juce" not in features:

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

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

  545. 

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

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

  548.             self.startTimers()

  549. 

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

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

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

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

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

  555. 

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

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

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

  559. 

  560.         # Load initial project file if set

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

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

  563. 

  564.             if projectFile:

  565.                 self.loadProjectLater(projectFile)

  566. 

  567.         # For NSM we wait for the open message

  568.         if NSM_URL and host.nsmOK:

  569.             host.nsm_ready(NSM_CALLBACK_INIT)

  570.             return

  571. 

  572.         if not host.isControl:

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

  574. 

  575.     # --------------------------------------------------------------------------------------------------------

  576.     # Setup

  577. 

  578.     def compactPlugin(self, pluginId):

  579.         if pluginId > self.fPluginCount:

  580.             return

  581. 

  582.         pitem = self.fPluginList[pluginId]

  583. 

  584.         if pitem is None:

  585.             return

  586. 

  587.         pitem.recreateWidget(True)

  588. 

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

  590.         if pluginId > self.fPluginCount:

  591.             return

  592. 

  593.         pitem = self.fPluginList[pluginId]

  594. 

  595.         if pitem is None:

  596.             return

  597. 

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

  599.         pitem.recreateWidget(newColor = color)

  600. 

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

  602.         if pluginId > self.fPluginCount:

  603.             return

  604. 

  605.         pitem = self.fPluginList[pluginId]

  606. 

  607.         if pitem is None:

  608.             return

  609. 

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

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

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

  613.         else:

  614.             pitem.recreateWidget(newSkin = skin)

  615. 

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

  617.         if pluginIdA == pluginIdB:

  618.             return

  619.         if pluginIdA < 0 or pluginIdB < 0:

  620.             return

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

  622.             return

  623. 

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

  625. 

  626.         itemA = self.fPluginList[pluginIdA]

  627.         compactA = itemA.isCompacted()

  628.         guiShownA = itemA.isGuiShown()

  629. 

  630.         itemB = self.fPluginList[pluginIdB]

  631.         compactB = itemB.isCompacted()

  632.         guiShownB = itemB.isGuiShown()

  633. 

  634.         itemA.setPluginId(pluginIdA)

  635.         itemA.recreateWidget2(compactB, guiShownB)

  636. 

  637.         itemB.setPluginId(pluginIdB)

  638.         itemB.recreateWidget2(compactA, guiShownA)

  639. 

  640.         if self.fWithCanvas:

  641.             self.slot_canvasRefresh()

  642. 

  643.     def setLoadRDFsNeeded(self):

  644.         self.fLadspaRdfNeedsUpdate = True

  645. 

  646.     def setProperWindowTitle(self):

  647.         title = self.fClientName

  648. 

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

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

  651.         if self.fSessionManagerName:

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

  653. 

  654.         self.setWindowTitle(title)

  655. 

  656.     def updateBufferSize(self, newBufferSize):

  657.         if self.fBufferSize == newBufferSize:

  658.             return

  659.         self.fBufferSize = newBufferSize

  660.         self.ui.cb_buffer_size.clear()

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

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

  663. 

  664.     def updateSampleRate(self, newSampleRate):

  665.         if self.fSampleRate == newSampleRate:

  666.             return

  667.         self.fSampleRate = newSampleRate

  668.         self.ui.cb_sample_rate.clear()

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

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

  671.         self.refreshTransport(True)

  672. 

  673.     # --------------------------------------------------------------------------------------------------------

  674.     # Files

  675. 

  676.     def makeExtraFilename(self):

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

  678. 

  679.     def loadProjectNow(self):

  680.         if not self.fProjectFilename:

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

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

  683.             return

  684. 

  685.         self.projectLoadingStarted()

  686.         self.fIsProjectLoading = True

  687. 

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

  689.             self.fIsProjectLoading = False

  690.             self.projectLoadingFinished()

  691. 

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

  693.                              self.host.get_last_error(),

  694.                              QMessageBox.Ok, QMessageBox.Ok)

  695. 

  696.     def loadProjectLater(self, filename):

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

  698.         self.setProperWindowTitle()

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

  700. 

  701.     def saveProjectNow(self):

  702.         if not self.fProjectFilename:

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

  704. 

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

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

  707.                              self.host.get_last_error(),

  708.                              QMessageBox.Ok, QMessageBox.Ok)

  709.             return

  710. 

  711.         if not self.fWithCanvas:

  712.             return

  713. 

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

  715.             json.dump({

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

  717.             }, fh)

  718. 

  719.     def projectLoadingStarted(self):

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

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

  722. 

  723.     def projectLoadingFinished(self):

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

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

  726. 

  727.         if not self.fWithCanvas:

  728.             return

  729. 

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

  731. 

  732.         extrafile = self.makeExtraFilename()

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

  734.             return

  735. 

  736.         try:

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

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

  739.         except:

  740.             return

  741. 

  742.         patchcanvas.restoreGroupPositions(canvasdata)

  743. 

  744.     # --------------------------------------------------------------------------------------------------------

  745.     # Files (menu actions)

  746. 

  747.     @pyqtSlot()

  748.     def slot_fileNew(self):

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

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

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

  752.             return

  753. 

  754.         self.pluginRemoveAll()

  755.         self.fProjectFilename = ""

  756.         self.setProperWindowTitle()

  757.         self.host.clear_project_filename()

  758. 

  759.     @pyqtSlot()

  760.     def slot_fileOpen(self):

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

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

  763. 

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

  765.         if not filename:

  766.             return

  767. 

  768.         newFile = True

  769. 

  770.         if self.fPluginCount > 0:

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

  772.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  774. 

  775.         if newFile:

  776.             self.pluginRemoveAll()

  777.             self.fProjectFilename = filename

  778.             self.setProperWindowTitle()

  779.             self.loadProjectNow()

  780.         else:

  781.             filenameOld = self.fProjectFilename

  782.             self.fProjectFilename = filename

  783.             self.loadProjectNow()

  784.             self.fProjectFilename = filenameOld

  785. 

  786.     @pyqtSlot()

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

  788.         if self.fProjectFilename and not saveAs:

  789.             return self.saveProjectNow()

  790. 

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

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

  793. 

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

  795.         if not filename:

  796.             return

  797. 

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

  799.             filename += ".carxp"

  800. 

  801.         if self.fProjectFilename != filename:

  802.             self.fProjectFilename = filename

  803.             self.setProperWindowTitle()

  804. 

  805.         self.saveProjectNow()

  806. 

  807.     @pyqtSlot()

  808.     def slot_fileSaveAs(self):

  809.         self.slot_fileSave(True)

  810. 

  811.     @pyqtSlot()

  812.     def slot_loadProjectNow(self):

  813.         self.loadProjectNow()

  814. 

  815.     # --------------------------------------------------------------------------------------------------------

  816.     # Engine (menu actions)

  817. 

  818.     @pyqtSlot()

  819.     def slot_engineStart(self):

  820.         audioDriver = setEngineSettings(self.host)

  821.         firstInit   = self.fFirstEngineInit

  822. 

  823.         self.fFirstEngineInit = False

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

  825. 

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

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

  828.                 settings = QSettings()

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

  830.                 del settings

  831.                 self.host.transport_bpm(lastBpm)

  832.             return

  833. 

  834.         elif firstInit:

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

  836.             return

  837. 

  838.         audioError = self.host.get_last_error()

  839. 

  840.         if audioError:

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

  842.         else:

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

  844. 

  845.     @pyqtSlot()

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

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

  848. 

  849.         if self.fPluginCount == 0:

  850.             self.engineStopFinal()

  851.             return True

  852. 

  853.         if not forced:

  854.             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"

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

  856.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  857.             if ask != QMessageBox.Yes:

  858.                 return False

  859. 

  860.         return self.slot_engineStopTryAgain()

  861. 

  862.     @pyqtSlot()

  863.     def slot_engineStopTryAgain(self):

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

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

  866.             return False

  867. 

  868.         self.engineStopFinal()

  869.         return True

  870. 

  871.     def engineStopFinal(self):

  872.         self.killTimers()

  873. 

  874.         if self.host.is_engine_running():

  875.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  876.                 self.removeAllPlugins()

  877.             elif self.fPluginCount != 0:

  878.                 self.fCurrentlyRemovingAllPlugins = True

  879.                 self.projectLoadingStarted()

  880. 

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

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

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

  884. 

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

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

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

  888. 

  889.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  890.             self.close()

  891.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  892.             self.slot_engineStart()

  893.             self.loadProjectNow()

  894.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  895. 

  896.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  897. 

  898.     # --------------------------------------------------------------------------------------------------------

  899.     # Engine (host callbacks)

  900. 

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

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

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

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

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

  906. 

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

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

  909. 

  910.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

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

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

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

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

  915.         else:

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

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

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

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

  920. 

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

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

  923. 

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

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

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

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

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

  929. 

  930.         if not self.host.isPlugin:

  931.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  932. 

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

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

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

  936. 

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

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

  939. 

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

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

  942. 

  943.         self.updateBufferSize(bufferSize)

  944.         self.updateSampleRate(int(sampleRate))

  945.         self.refreshRuntimeInfo(0.0, 0)

  946.         self.startTimers()

  947. 

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

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

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

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

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

  953. 

  954.     @pyqtSlot()

  955.     def slot_handleEngineStoppedCallback(self):

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

  957. 

  958.         patchcanvas.clear()

  959.         self.killTimers()

  960. 

  961.         # just in case

  962.         self.removeAllPlugins()

  963.         self.refreshRuntimeInfo(0.0, 0)

  964. 

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

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

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

  968. 

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

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

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

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

  973. 

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

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

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

  977. 

  978.     @pyqtSlot(int, str)

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

  980.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  981. 

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

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

  984. 

  985.     @pyqtSlot(int)

  986.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  987.         self.updateBufferSize(newBufferSize)

  988. 

  989.     @pyqtSlot(float)

  990.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  991.         self.updateSampleRate(int(newSampleRate))

  992. 

  993.     @pyqtSlot(int, bool, str)

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

  995.         if self.fCancelableActionBox is not None:

  996.             self.fCancelableActionBox.close()

  997. 

  998.         if started:

  999.             self.fCancelableActionBox = QMessageBox(self)

  1000.             self.fCancelableActionBox.setIcon(QMessageBox.Critical)

  1001.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1002.             self.fCancelableActionBox.setText(action)

  1003.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1004.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1005.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1006.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1007.             self.fCancelableActionBox.show()

  1008. 

  1009.         else:

  1010.             self.fCancelableActionBox = None

  1011. 

  1012.     @pyqtSlot()

  1013.     def slot_canlableActionBoxClicked(self):

  1014.         self.host.cancel_engine_action()

  1015. 

  1016.     @pyqtSlot()

  1017.     def slot_handleProjectLoadFinishedCallback(self):

  1018.         self.fIsProjectLoading = False

  1019.         self.projectLoadingFinished()

  1020. 

  1021.     # --------------------------------------------------------------------------------------------------------

  1022.     # Plugins

  1023. 

  1024.     def removeAllPlugins(self):

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

  1026.         patchcanvas.handleAllPluginsRemoved()

  1027. 

  1028.         while self.ui.listWidget.takeItem(0):

  1029.             pass

  1030. 

  1031.         self.clearSideStuff()

  1032. 

  1033.         for pitem in self.fPluginList:

  1034.             if pitem is None:

  1035.                 continue

  1036. 

  1037.             pitem.close()

  1038.             del pitem

  1039. 

  1040.         self.fPluginCount = 0

  1041.         self.fPluginList  = []

  1042. 

  1043.     # --------------------------------------------------------------------------------------------------------

  1044.     # Plugins (menu actions)

  1045. 

  1046.     def showAddPluginDialog(self):

  1047.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1048. 

  1049.         if not dialog.exec_():

  1050.             return

  1051. 

  1052.         if not self.host.is_engine_running():

  1053.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1054.             return

  1055. 

  1056.         btype    = dialog.fRetPlugin['build']

  1057.         ptype    = dialog.fRetPlugin['type']

  1058.         filename = dialog.fRetPlugin['filename']

  1059.         label    = dialog.fRetPlugin['label']

  1060.         uniqueId = dialog.fRetPlugin['uniqueId']

  1061.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1062. 

  1063.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1064. 

  1065.     def showAddJackAppDialog(self):

  1066.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1067. 

  1068.         if not dialog.exec_():

  1069.             return

  1070. 

  1071.         if not self.host.is_engine_running():

  1072.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1073.             return

  1074. 

  1075.         return dialog.getCommandAndFlags()

  1076. 

  1077.     @pyqtSlot()

  1078.     def showPluginActionsMenu(self):

  1079.         menu = QMenu(self)

  1080. 

  1081.         menu.addSection("Plugins")

  1082.         menu.addAction(self.ui.act_plugin_add)

  1083.         menu.addAction(self.ui.act_plugin_remove_all)

  1084. 

  1085.         menu.addSection("All plugins (macros)")

  1086.         menu.addAction(self.ui.act_plugins_enable)

  1087.         menu.addAction(self.ui.act_plugins_disable)

  1088.         menu.addSeparator()

  1089.         menu.addAction(self.ui.act_plugins_volume100)

  1090.         menu.addAction(self.ui.act_plugins_mute)

  1091.         menu.addSeparator()

  1092.         menu.addAction(self.ui.act_plugins_wet100)

  1093.         menu.addAction(self.ui.act_plugins_bypass)

  1094.         menu.addSeparator()

  1095.         menu.addAction(self.ui.act_plugins_center)

  1096.         menu.addSeparator()

  1097.         menu.addAction(self.ui.act_plugins_compact)

  1098.         menu.addAction(self.ui.act_plugins_expand)

  1099. 

  1100.         menu.exec_(QCursor.pos())

  1101. 

  1102.     @pyqtSlot()

  1103.     def slot_pluginAdd(self):

  1104.         data = self.showAddPluginDialog()

  1105. 

  1106.         if data is None:

  1107.             return

  1108. 

  1109.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1110. 

  1111.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1112.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1113. 

  1114.     @pyqtSlot()

  1115.     def slot_confirmRemoveAll(self):

  1116.         if self.fPluginCount == 0:

  1117.             return

  1118. 

  1119.         if QMessageBox.question(self, self.tr("Remove All"),

  1120.                                       self.tr("Are you sure you want to remove all plugins?"),

  1121.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1122.             return

  1123. 

  1124.         self.pluginRemoveAll()

  1125. 

  1126.     def pluginRemoveAll(self):

  1127.         if self.fPluginCount == 0:

  1128.             return

  1129. 

  1130.         self.fCurrentlyRemovingAllPlugins = True

  1131.         self.projectLoadingStarted()

  1132. 

  1133.         if not self.host.remove_all_plugins():

  1134.             self.projectLoadingFinished()

  1135.             self.fCurrentlyRemovingAllPlugins = False

  1136.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1137.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1138. 

  1139.     @pyqtSlot()

  1140.     def slot_jackAppAdd(self):

  1141.         data = self.showAddJackAppDialog()

  1142. 

  1143.         if data is None:

  1144.             return

  1145. 

  1146.         filename, name, label = data

  1147. 

  1148.         if not filename:

  1149.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1150.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1151.             return

  1152. 

  1153.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1154.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1155.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1156. 

  1157.     # --------------------------------------------------------------------------------------------------------

  1158.     # Plugins (macros)

  1159. 

  1160.     @pyqtSlot()

  1161.     def slot_pluginsEnable(self):

  1162.         if not self.host.is_engine_running():

  1163.             return

  1164. 

  1165.         for pitem in self.fPluginList:

  1166.             if pitem is None:

  1167.                 break

  1168. 

  1169.             pitem.getWidget().setActive(True, True, True)

  1170. 

  1171.     @pyqtSlot()

  1172.     def slot_pluginsDisable(self):

  1173.         if not self.host.is_engine_running():

  1174.             return

  1175. 

  1176.         for pitem in self.fPluginList:

  1177.             if pitem is None:

  1178.                 break

  1179. 

  1180.             pitem.getWidget().setActive(False, True, True)

  1181. 

  1182.     @pyqtSlot()

  1183.     def slot_pluginsVolume100(self):

  1184.         if not self.host.is_engine_running():

  1185.             return

  1186. 

  1187.         for pitem in self.fPluginList:

  1188.             if pitem is None:

  1189.                 break

  1190. 

  1191.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1192. 

  1193.     @pyqtSlot()

  1194.     def slot_pluginsMute(self):

  1195.         if not self.host.is_engine_running():

  1196.             return

  1197. 

  1198.         for pitem in self.fPluginList:

  1199.             if pitem is None:

  1200.                 break

  1201. 

  1202.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1203. 

  1204.     @pyqtSlot()

  1205.     def slot_pluginsWet100(self):

  1206.         if not self.host.is_engine_running():

  1207.             return

  1208. 

  1209.         for pitem in self.fPluginList:

  1210.             if pitem is None:

  1211.                 break

  1212. 

  1213.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1214. 

  1215.     @pyqtSlot()

  1216.     def slot_pluginsBypass(self):

  1217.         if not self.host.is_engine_running():

  1218.             return

  1219. 

  1220.         for pitem in self.fPluginList:

  1221.             if pitem is None:

  1222.                 break

  1223. 

  1224.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1225. 

  1226.     @pyqtSlot()

  1227.     def slot_pluginsCenter(self):

  1228.         if not self.host.is_engine_running():

  1229.             return

  1230. 

  1231.         for pitem in self.fPluginList:

  1232.             if pitem is None:

  1233.                 break

  1234. 

  1235.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1236.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1237.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1238. 

  1239.     @pyqtSlot()

  1240.     def slot_pluginsCompact(self):

  1241.         for pitem in self.fPluginList:

  1242.             if pitem is None:

  1243.                 break

  1244.             pitem.compact()

  1245. 

  1246.     @pyqtSlot()

  1247.     def slot_pluginsExpand(self):

  1248.         for pitem in self.fPluginList:

  1249.             if pitem is None:

  1250.                 break

  1251.             pitem.expand()

  1252. 

  1253.     # --------------------------------------------------------------------------------------------------------

  1254.     # Plugins (host callbacks)

  1255. 

  1256.     @pyqtSlot(int, str)

  1257.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1258.         if pluginId != self.fPluginCount:

  1259.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1260.             pitem = self.getPluginItem(pluginId)

  1261.             pitem.recreateWidget()

  1262.             return

  1263. 

  1264.         pitem = self.ui.listWidget.createItem(pluginId)

  1265.         self.fPluginList.append(pitem)

  1266.         self.fPluginCount += 1

  1267. 

  1268.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1269. 

  1270.     @pyqtSlot(int)

  1271.     def slot_handlePluginRemovedCallback(self, pluginId):

  1272.         patchcanvas.handlePluginRemoved(pluginId)

  1273. 

  1274.         if pluginId in self.fSelectedPlugins:

  1275.             self.clearSideStuff()

  1276. 

  1277.         pitem = self.getPluginItem(pluginId)

  1278. 

  1279.         self.fPluginCount -= 1

  1280.         self.fPluginList.pop(pluginId)

  1281.         self.ui.listWidget.takeItem(pluginId)

  1282. 

  1283.         if pitem is not None:

  1284.             pitem.close()

  1285.             del pitem

  1286. 

  1287.         if self.fPluginCount == 0:

  1288.             self.ui.act_plugin_remove_all.setEnabled(False)

  1289.             if self.fCurrentlyRemovingAllPlugins:

  1290.                 self.fCurrentlyRemovingAllPlugins = False

  1291.                 self.projectLoadingFinished()

  1292.             return

  1293. 

  1294.         # push all plugins 1 slot back

  1295.         for i in range(pluginId, self.fPluginCount):

  1296.             pitem = self.fPluginList[i]

  1297.             pitem.setPluginId(i)

  1298. 

  1299.         self.ui.act_plugin_remove_all.setEnabled(True)

  1300. 

  1301.     # --------------------------------------------------------------------------------------------------------

  1302.     # Canvas

  1303. 

  1304.     def clearSideStuff(self):

  1305.         if self.fWithCanvas:

  1306.             self.scene.clearSelection()

  1307. 

  1308.         self.fSelectedPlugins = []

  1309. 

  1310.         self.ui.keyboard.allNotesOff(False)

  1311.         self.ui.scrollArea.setEnabled(False)

  1312. 

  1313.         self.fPeaksCleared = True

  1314.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1315.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1316.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1317.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1318. 

  1319.     def setupCanvas(self):

  1320.         pOptions = patchcanvas.options_t()

  1321.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1322.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1323.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1324.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1325.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1326. 

  1327.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1328.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1329.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1330.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1331.         else:

  1332.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1333. 

  1334.         pFeatures = patchcanvas.features_t()

  1335.         pFeatures.group_info   = False

  1336.         pFeatures.group_rename = False

  1337.         pFeatures.port_info    = False

  1338.         pFeatures.port_rename  = False

  1339.         pFeatures.handle_group_pos = True

  1340. 

  1341.         patchcanvas.setOptions(pOptions)

  1342.         patchcanvas.setFeatures(pFeatures)

  1343.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1344. 

  1345.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1346. 

  1347.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1348.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1349.             self.fCanvasHeight = int(tryCanvasSize[1])

  1350.         else:

  1351.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1352.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1353. 

  1354.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1355.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1356.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1357. 

  1358.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1359.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1360. 

  1361.     def updateCanvasInitialPos(self):

  1362.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1363.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1364.         patchcanvas.setInitialPos(x, y)

  1365. 

  1366.     def updateMiniCanvasLater(self):

  1367.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1368. 

  1369.     # --------------------------------------------------------------------------------------------------------

  1370.     # Canvas (menu actions)

  1371. 

  1372.     @pyqtSlot()

  1373.     def slot_canvasShowInternal(self):

  1374.         self.fExternalPatchbay = False

  1375.         self.ui.act_canvas_show_internal.blockSignals(True)

  1376.         self.ui.act_canvas_show_external.blockSignals(True)

  1377.         self.ui.act_canvas_show_internal.setChecked(True)

  1378.         self.ui.act_canvas_show_external.setChecked(False)

  1379.         self.ui.act_canvas_show_internal.blockSignals(False)

  1380.         self.ui.act_canvas_show_external.blockSignals(False)

  1381.         self.slot_canvasRefresh()

  1382. 

  1383.     @pyqtSlot()

  1384.     def slot_canvasShowExternal(self):

  1385.         self.fExternalPatchbay = True

  1386.         self.ui.act_canvas_show_internal.blockSignals(True)

  1387.         self.ui.act_canvas_show_external.blockSignals(True)

  1388.         self.ui.act_canvas_show_internal.setChecked(False)

  1389.         self.ui.act_canvas_show_external.setChecked(True)

  1390.         self.ui.act_canvas_show_internal.blockSignals(False)

  1391.         self.ui.act_canvas_show_external.blockSignals(False)

  1392.         self.slot_canvasRefresh()

  1393. 

  1394.     @pyqtSlot()

  1395.     def slot_canvasArrange(self):

  1396.         patchcanvas.arrange()

  1397. 

  1398.     @pyqtSlot()

  1399.     def slot_canvasRefresh(self):

  1400.         patchcanvas.clear()

  1401. 

  1402.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1403.             return

  1404. 

  1405.         if self.host.is_engine_running():

  1406.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1407. 

  1408.         self.updateMiniCanvasLater()

  1409. 

  1410.     @pyqtSlot()

  1411.     def slot_canvasZoomFit(self):

  1412.         self.scene.zoom_fit()

  1413. 

  1414.     @pyqtSlot()

  1415.     def slot_canvasZoomIn(self):

  1416.         self.scene.zoom_in()

  1417. 

  1418.     @pyqtSlot()

  1419.     def slot_canvasZoomOut(self):

  1420.         self.scene.zoom_out()

  1421. 

  1422.     @pyqtSlot()

  1423.     def slot_canvasZoomReset(self):

  1424.         self.scene.zoom_reset()

  1425. 

  1426.     @pyqtSlot()

  1427.     def slot_canvasSaveImage(self):

  1428.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1429. 

  1430.         # FIXME use ok value, test if it works as expected

  1431.         if not newPath:

  1432.             return

  1433. 

  1434.         self.scene.clearSelection()

  1435. 

  1436.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1437.             imgFormat = "JPG"

  1438.         elif newPath.lower().endswith((".png",)):

  1439.             imgFormat = "PNG"

  1440.         else:

  1441.             # File-dialog may not auto-add the extension

  1442.             imgFormat = "PNG"

  1443.             newPath  += ".png"

  1444. 

  1445.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1446.         painter = QPainter(self.fExportImage)

  1447.         painter.save()

  1448.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1449.         painter.setRenderHint(QPainter.TextAntialiasing)

  1450.         self.scene.render(painter)

  1451.         self.fExportImage.save(newPath, imgFormat, 100)

  1452.         painter.restore()

  1453. 

  1454.     # --------------------------------------------------------------------------------------------------------

  1455.     # Canvas (canvas callbacks)

  1456. 

  1457.     @pyqtSlot(int, int, QPointF)

  1458.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1459.         self.updateMiniCanvasLater()

  1460. 

  1461.     @pyqtSlot()

  1462.     def slot_canvasSelectionChanged(self):

  1463.         self.updateMiniCanvasLater()

  1464. 

  1465.     @pyqtSlot(float)

  1466.     def slot_canvasScaleChanged(self, scale):

  1467.         self.ui.miniCanvasPreview.setViewScale(scale)

  1468. 

  1469.     @pyqtSlot(list)

  1470.     def slot_canvasPluginSelected(self, pluginList):

  1471.         self.ui.keyboard.allNotesOff(False)

  1472.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1473.         self.fSelectedPlugins = pluginList

  1474. 

  1475.     # --------------------------------------------------------------------------------------------------------

  1476.     # Canvas (host callbacks)

  1477. 

  1478.     @pyqtSlot(int, int, int, str)

  1479.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1480.         pcSplit = patchcanvas.SPLIT_UNDEF

  1481.         pcIcon  = patchcanvas.ICON_APPLICATION

  1482. 

  1483.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1484.             pcIcon = patchcanvas.ICON_PLUGIN

  1485.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1486.             pcIcon = patchcanvas.ICON_HARDWARE

  1487.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1488.             pass

  1489.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1490.             pcIcon = patchcanvas.ICON_DISTRHO

  1491.         elif clientIcon == PATCHBAY_ICON_FILE:

  1492.             pcIcon = patchcanvas.ICON_FILE

  1493. 

  1494.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1495. 

  1496.         self.updateMiniCanvasLater()

  1497. 

  1498.         if pluginId < 0:

  1499.             return

  1500.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1501.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1502.             return

  1503. 

  1504.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1505.             hasCustomUI = False

  1506.         else:

  1507.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1508. 

  1509.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1510. 

  1511.     @pyqtSlot(int)

  1512.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1513.         patchcanvas.removeGroup(clientId)

  1514.         self.updateMiniCanvasLater()

  1515. 

  1516.     @pyqtSlot(int, str)

  1517.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1518.         patchcanvas.renameGroup(clientId, newClientName)

  1519.         self.updateMiniCanvasLater()

  1520. 

  1521.     @pyqtSlot(int, int, int)

  1522.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1523.         pcIcon = patchcanvas.ICON_APPLICATION

  1524. 

  1525.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1526.             pcIcon = patchcanvas.ICON_PLUGIN

  1527.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1528.             pcIcon = patchcanvas.ICON_HARDWARE

  1529.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1530.             pass

  1531.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1532.             pcIcon = patchcanvas.ICON_DISTRHO

  1533.         elif clientIcon == PATCHBAY_ICON_FILE:

  1534.             pcIcon = patchcanvas.ICON_FILE

  1535. 

  1536.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1537.         self.updateMiniCanvasLater()

  1538. 

  1539.         if pluginId < 0:

  1540.             return

  1541.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1542.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1543.             return

  1544. 

  1545.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1546.             hasCustomUI = False

  1547.         else:

  1548.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1549. 

  1550.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1551. 

  1552.     @pyqtSlot(int, int, int, str)

  1553.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1554.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1555.             portMode = patchcanvas.PORT_MODE_INPUT

  1556.         else:

  1557.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1558. 

  1559.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1560.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1561.             isAlternate = False

  1562.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1563.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1564.             isAlternate = True

  1565.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1566.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1567.             isAlternate = False

  1568.         else:

  1569.             portType    = patchcanvas.PORT_TYPE_NULL

  1570.             isAlternate = False

  1571. 

  1572.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1573.         self.updateMiniCanvasLater()

  1574. 

  1575.     @pyqtSlot(int, int)

  1576.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1577.         patchcanvas.removePort(groupId, portId)

  1578.         self.updateMiniCanvasLater()

  1579. 

  1580.     @pyqtSlot(int, int, str)

  1581.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1582.         patchcanvas.renamePort(groupId, portId, newPortName)

  1583.         self.updateMiniCanvasLater()

  1584. 

  1585.     @pyqtSlot(int, int, int, int, int)

  1586.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1587.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1588.         self.updateMiniCanvasLater()

  1589. 

  1590.     @pyqtSlot(int, int, int)

  1591.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1592.         patchcanvas.disconnectPorts(connectionId)

  1593.         self.updateMiniCanvasLater()

  1594. 

  1595.     # --------------------------------------------------------------------------------------------------------

  1596.     # Settings

  1597. 

  1598.     def saveSettings(self):

  1599.         settings = QSettings()

  1600. 

  1601.         settings.setValue("Geometry", self.saveGeometry())

  1602.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1603.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1604. 

  1605.         diskFolders = []

  1606. 

  1607.         for i in range(self.ui.cb_disk.count()):

  1608.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1609. 

  1610.         settings.setValue("DiskFolders", diskFolders)

  1611.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1612. 

  1613.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1614.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1615.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1616.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1617. 

  1618.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1619.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1620. 

  1621.         return settings

  1622. 

  1623.     def loadSettings(self, firstTime):

  1624.         settings = QSettings()

  1625. 

  1626.         if firstTime:

  1627.             self.restoreGeometry(settings.value("Geometry", b""))

  1628. 

  1629.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1630.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1631.             self.ui.toolBar.setEnabled(showToolbar)

  1632.             self.ui.toolBar.setVisible(showToolbar)

  1633. 

  1634.             #if settings.contains("SplitterState"):

  1635.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1636.             #else:

  1637.                 #self.ui.splitter.setSizes([210, 99999])

  1638. 

  1639.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1640.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1641.             self.slot_showSidePanel(showSidePanel)

  1642. 

  1643.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1644. 

  1645.             self.ui.cb_disk.setItemData(0, HOME)

  1646. 

  1647.             for i in range(len(diskFolders)):

  1648.                 if i == 0: continue

  1649.                 folder = diskFolders[i]

  1650.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1651. 

  1652.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1653.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1654. 

  1655.             showMeters = settings.value("ShowMeters", True, type=bool)

  1656.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1657.             self.ui.peak_in.setVisible(showMeters)

  1658.             self.ui.peak_out.setVisible(showMeters)

  1659. 

  1660.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1661.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1662.             self.ui.scrollArea.setVisible(showKeyboard)

  1663. 

  1664.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1665. 

  1666.         # TODO - complete this

  1667. 

  1668.         self.fSavedSettings = {

  1669.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1670.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1671.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1672.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1673.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1674.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1675.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1676.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1677.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1678.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1679.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1680.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1681.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1682.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1683.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1684.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1685.         }

  1686. 

  1687.         settings2 = QSettings("falkTX", "Carla2")

  1688. 

  1689.         if self.host.experimental:

  1690.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1691.             self.ui.act_add_jack.setVisible(visible)

  1692.             self.ui.act_plugin_add_jack.setVisible(visible)

  1693.         else:

  1694.             self.ui.act_add_jack.setVisible(False)

  1695.             self.ui.act_plugin_add_jack.setVisible(False)

  1696. 

  1697.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1698. 

  1699.         setEngineSettings(self.host)

  1700.         self.restartTimersIfNeeded()

  1701. 

  1702.         return settings

  1703. 

  1704.     # --------------------------------------------------------------------------------------------------------

  1705.     # Settings (helpers)

  1706. 

  1707.     def enableTransport(self, enabled):

  1708.         self.ui.group_transport_controls.setEnabled(enabled)

  1709.         self.ui.group_transport_settings.setEnabled(enabled)

  1710. 

  1711.     @pyqtSlot()

  1712.     def slot_restoreCanvasScrollbarValues(self):

  1713.         settings = QSettings()

  1714.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1715.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1716. 

  1717.     # --------------------------------------------------------------------------------------------------------

  1718.     # Settings (menu actions)

  1719. 

  1720.     @pyqtSlot(bool)

  1721.     def slot_showSidePanel(self, yesNo):

  1722.         self.ui.dockWidget.setEnabled(yesNo)

  1723.         self.ui.dockWidget.setVisible(yesNo)

  1724. 

  1725.     @pyqtSlot(bool)

  1726.     def slot_showToolbar(self, yesNo):

  1727.         self.ui.toolBar.setEnabled(yesNo)

  1728.         self.ui.toolBar.setVisible(yesNo)

  1729. 

  1730.     @pyqtSlot(bool)

  1731.     def slot_showCanvasMeters(self, yesNo):

  1732.         self.ui.peak_in.setVisible(yesNo)

  1733.         self.ui.peak_out.setVisible(yesNo)

  1734.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1735. 

  1736.     @pyqtSlot(bool)

  1737.     def slot_showCanvasKeyboard(self, yesNo):

  1738.         self.ui.scrollArea.setVisible(yesNo)

  1739.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1740. 

  1741.     @pyqtSlot()

  1742.     def slot_configureCarla(self):

  1743.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1744.         if not dialog.exec_():

  1745.             return

  1746. 

  1747.         self.loadSettings(False)

  1748. 

  1749.         patchcanvas.clear()

  1750. 

  1751.         self.setupCanvas()

  1752.         self.slot_miniCanvasCheckAll()

  1753. 

  1754.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1755.             pass

  1756.         elif self.host.is_engine_running():

  1757.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1758. 

  1759.     # --------------------------------------------------------------------------------------------------------

  1760.     # About (menu actions)

  1761. 

  1762.     @pyqtSlot()

  1763.     def slot_aboutCarla(self):

  1764.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1765. 

  1766.     @pyqtSlot()

  1767.     def slot_aboutJuce(self):

  1768.         JuceAboutW(self.fParentOrSelf).exec_()

  1769. 

  1770.     @pyqtSlot()

  1771.     def slot_aboutQt(self):

  1772.         QApplication.instance().aboutQt()

  1773. 

  1774.     # --------------------------------------------------------------------------------------------------------

  1775.     # Disk (menu actions)

  1776. 

  1777.     @pyqtSlot(int)

  1778.     def slot_diskFolderChanged(self, index):

  1779.         if index < 0:

  1780.             return

  1781.         elif index == 0:

  1782.             filename = HOME

  1783.             self.ui.b_disk_remove.setEnabled(False)

  1784.         else:

  1785.             filename = self.ui.cb_disk.itemData(index)

  1786.             self.ui.b_disk_remove.setEnabled(True)

  1787. 

  1788.         self.fDirModel.setRootPath(filename)

  1789.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1790. 

  1791.     @pyqtSlot()

  1792.     def slot_diskFolderAdd(self):

  1793.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1794. 

  1795.         if newPath:

  1796.             if newPath[-1] == os.sep:

  1797.                 newPath = newPath[:-1]

  1798.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1799.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1800.             self.ui.b_disk_remove.setEnabled(True)

  1801. 

  1802.     @pyqtSlot()

  1803.     def slot_diskFolderRemove(self):

  1804.         index = self.ui.cb_disk.currentIndex()

  1805. 

  1806.         if index <= 0:

  1807.             return

  1808. 

  1809.         self.ui.cb_disk.removeItem(index)

  1810. 

  1811.         if self.ui.cb_disk.currentIndex() == 0:

  1812.             self.ui.b_disk_remove.setEnabled(False)

  1813. 

  1814.     @pyqtSlot(QModelIndex)

  1815.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1816.         filename = self.fDirModel.filePath(modelIndex)

  1817. 

  1818.         if not self.ui.listWidget.isDragUrlValid(filename):

  1819.             return

  1820. 

  1821.         if not self.host.load_file(filename):

  1822.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1823.                              self.tr("Failed to load file"),

  1824.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1825. 

  1826.     # --------------------------------------------------------------------------------------------------------

  1827.     # Transport

  1828. 

  1829.     def refreshTransport(self, forced = False):

  1830.         if not self.isVisible():

  1831.             return

  1832.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1833.             return

  1834. 

  1835.         timeInfo = self.host.get_transport_info()

  1836.         playing  = timeInfo['playing']

  1837.         frame    = timeInfo['frame']

  1838.         bpm      = timeInfo['bpm']

  1839. 

  1840.         if playing != self.fLastTransportState or forced:

  1841.             if playing:

  1842.                 icon = getIcon("media-playback-pause")

  1843.                 self.ui.b_transport_play.setChecked(True)

  1844.                 self.ui.b_transport_play.setIcon(icon)

  1845.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1846.             else:

  1847.                 icon = getIcon("media-playback-start")

  1848.                 self.ui.b_transport_play.setChecked(False)

  1849.                 self.ui.b_transport_play.setIcon(icon)

  1850.                 #self.ui.b_play.setText(self.tr("&Play"))

  1851. 

  1852.             self.fLastTransportState = playing

  1853. 

  1854.         if frame != self.fLastTransportFrame or forced:

  1855.             self.fLastTransportFrame = frame

  1856. 

  1857.             time = frame / self.fSampleRate

  1858.             secs =  time % 60

  1859.             mins = (time / 60) % 60

  1860.             hrs  = (time / 3600) % 60

  1861.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1862. 

  1863.             frame1 =  frame % 1000

  1864.             frame2 = (frame / 1000) % 1000

  1865.             frame3 = (frame / 1000000) % 1000

  1866.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1867. 

  1868.             bar  = timeInfo['bar']

  1869.             beat = timeInfo['beat']

  1870.             tick = timeInfo['tick']

  1871.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1872. 

  1873.         if bpm != self.fLastTransportBPM or forced:

  1874.             self.fLastTransportBPM = bpm

  1875. 

  1876.             if bpm > 0.0:

  1877.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1878.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1879.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1880.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1881.             else:

  1882.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1883. 

  1884.     # --------------------------------------------------------------------------------------------------------

  1885.     # Transport (menu actions)

  1886. 

  1887.     @pyqtSlot(bool)

  1888.     def slot_transportPlayPause(self, toggled):

  1889.         if self.host.isPlugin or not self.host.is_engine_running():

  1890.             return

  1891. 

  1892.         if toggled:

  1893.             self.host.transport_play()

  1894.         else:

  1895.             self.host.transport_pause()

  1896. 

  1897.         self.refreshTransport()

  1898. 

  1899.     @pyqtSlot()

  1900.     def slot_transportStop(self):

  1901.         if self.host.isPlugin or not self.host.is_engine_running():

  1902.             return

  1903. 

  1904.         self.host.transport_pause()

  1905.         self.host.transport_relocate(0)

  1906. 

  1907.         self.refreshTransport()

  1908. 

  1909.     @pyqtSlot()

  1910.     def slot_transportBackwards(self):

  1911.         if self.host.isPlugin or not self.host.is_engine_running():

  1912.             return

  1913. 

  1914.         newFrame = self.host.get_current_transport_frame() - 100000

  1915. 

  1916.         if newFrame < 0:

  1917.             newFrame = 0

  1918. 

  1919.         self.host.transport_relocate(newFrame)

  1920. 

  1921.     @pyqtSlot(float)

  1922.     def slot_transportBpmChanged(self, newValue):

  1923.         self.host.transport_bpm(newValue)

  1924. 

  1925.     @pyqtSlot()

  1926.     def slot_transportForwards(self):

  1927.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1928.             return

  1929. 

  1930.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1931.         self.host.transport_relocate(newFrame)

  1932. 

  1933.     @pyqtSlot(bool)

  1934.     def slot_transportJackEnabled(self, clicked):

  1935.         if not self.host.is_engine_running():

  1936.             return

  1937.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1938.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1939.                                     self.host.transportMode,

  1940.                                     self.host.transportExtra)

  1941. 

  1942.     @pyqtSlot(bool)

  1943.     def slot_transportLinkEnabled(self, clicked):

  1944.         if not self.host.is_engine_running():

  1945.             return

  1946.         extra = ":link:" if clicked else ""

  1947.         self.host.transportExtra = extra

  1948.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1949.                                     self.host.transportMode,

  1950.                                     self.host.transportExtra)

  1951. 

  1952.     # --------------------------------------------------------------------------------------------------------

  1953.     # Other

  1954. 

  1955.     @pyqtSlot(bool)

  1956.     def slot_xrunClear(self):

  1957.         self.host.clear_engine_xruns()

  1958. 

  1959.     # --------------------------------------------------------------------------------------------------------

  1960.     # Canvas scrollbars

  1961. 

  1962.     @pyqtSlot(int)

  1963.     def slot_horizontalScrollBarChanged(self, value):

  1964.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1965.         if maximum == 0:

  1966.             xp = 0

  1967.         else:

  1968.             xp = float(value) / maximum

  1969.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1970.         self.updateCanvasInitialPos()

  1971. 

  1972.     @pyqtSlot(int)

  1973.     def slot_verticalScrollBarChanged(self, value):

  1974.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1975.         if maximum == 0:

  1976.             yp = 0

  1977.         else:

  1978.             yp = float(value) / maximum

  1979.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1980.         self.updateCanvasInitialPos()

  1981. 

  1982.     # --------------------------------------------------------------------------------------------------------

  1983.     # Canvas keyboard

  1984. 

  1985.     @pyqtSlot(int)

  1986.     def slot_noteOn(self, note):

  1987.         for pluginId in self.fSelectedPlugins:

  1988.             self.host.send_midi_note(pluginId, 0, note, 100)

  1989. 

  1990.             pedit = self.getPluginEditDialog(pluginId)

  1991.             pedit.noteOn(0, note, 100)

  1992. 

  1993.     @pyqtSlot(int)

  1994.     def slot_noteOff(self, note):

  1995.         for pluginId in self.fSelectedPlugins:

  1996.             self.host.send_midi_note(pluginId, 0, note, 0)

  1997. 

  1998.             pedit = self.getPluginEditDialog(pluginId)

  1999.             pedit.noteOff(0, note)

  2000. 

  2001.     # --------------------------------------------------------------------------------------------------------

  2002.     # Canvas keyboard (host callbacks)

  2003. 

  2004.     @pyqtSlot(int, int, int, int)

  2005.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2006.         if pluginId in self.fSelectedPlugins:

  2007.             self.ui.keyboard.sendNoteOn(note, False)

  2008. 

  2009.     @pyqtSlot(int, int, int)

  2010.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2011.         if pluginId in self.fSelectedPlugins:

  2012.             self.ui.keyboard.sendNoteOff(note, False)

  2013. 

  2014.     # --------------------------------------------------------------------------------------------------------

  2015. 

  2016.     @pyqtSlot(int)

  2017.     def slot_handleUpdateCallback(self, pluginId):

  2018.         pitem = self.getPluginItem(pluginId)

  2019. 

  2020.         if pitem is None:

  2021.             return

  2022. 

  2023.         wasCompacted = pitem.isCompacted()

  2024.         isCompacted  = wasCompacted

  2025. 

  2026.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2027.         if not check:

  2028.             return

  2029.         isCompacted = bool(check == "true")

  2030. 

  2031.         if wasCompacted == isCompacted:

  2032.             return

  2033. 

  2034.         pitem.recreateWidget(True)

  2035. 

  2036.     # --------------------------------------------------------------------------------------------------------

  2037.     # MiniCanvas stuff

  2038. 

  2039.     @pyqtSlot()

  2040.     def slot_miniCanvasCheckAll(self):

  2041.         self.slot_miniCanvasCheckSize()

  2042.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2043.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2044. 

  2045.     @pyqtSlot()

  2046.     def slot_miniCanvasCheckSize(self):

  2047.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2048.             return

  2049. 

  2050.         currentIndex = self.ui.tabWidget.currentIndex()

  2051. 

  2052.         if currentIndex == 1:

  2053.             width  = self.ui.graphicsView.width()

  2054.             height = self.ui.graphicsView.height()

  2055.         else:

  2056.             self.ui.tabWidget.blockSignals(True)

  2057.             self.ui.tabWidget.setCurrentIndex(1)

  2058.             width  = self.ui.graphicsView.width()

  2059.             height = self.ui.graphicsView.height()

  2060.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2061.             self.ui.tabWidget.blockSignals(False)

  2062. 

  2063.         self.scene.updateLimits()

  2064. 

  2065.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2066. 

  2067.     @pyqtSlot(float, float)

  2068.     def slot_miniCanvasMoved(self, xp, yp):

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

  2070.         vsb = self.ui.graphicsView.verticalScrollBar()

  2071.         hsb.setValue(xp * hsb.maximum())

  2072.         vsb.setValue(yp * vsb.maximum())

  2073.         self.updateCanvasInitialPos()

  2074. 

  2075.     # --------------------------------------------------------------------------------------------------------

  2076.     # Timers

  2077. 

  2078.     def startTimers(self):

  2079.         if self.fIdleTimerFast == 0:

  2080.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2081. 

  2082.         if self.fIdleTimerSlow == 0:

  2083.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2084. 

  2085.     def restartTimersIfNeeded(self):

  2086.         if self.fIdleTimerFast != 0:

  2087.             self.killTimer(self.fIdleTimerFast)

  2088.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2089. 

  2090.         if self.fIdleTimerSlow != 0:

  2091.             self.killTimer(self.fIdleTimerSlow)

  2092.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2093. 

  2094.     def killTimers(self):

  2095.         if self.fIdleTimerFast != 0:

  2096.             self.killTimer(self.fIdleTimerFast)

  2097.             self.fIdleTimerFast = 0

  2098. 

  2099.         if self.fIdleTimerSlow != 0:

  2100.             self.killTimer(self.fIdleTimerSlow)

  2101.             self.fIdleTimerSlow = 0

  2102. 

  2103.     # --------------------------------------------------------------------------------------------------------

  2104.     # Misc

  2105. 

  2106.     @pyqtSlot(int)

  2107.     def slot_tabChanged(self, index):

  2108.         if index != 1:

  2109.             return

  2110. 

  2111.         self.ui.graphicsView.setFocus()

  2112. 

  2113.     @pyqtSlot(int)

  2114.     def slot_handleReloadAllCallback(self, pluginId):

  2115.         if pluginId >= self.fPluginCount:

  2116.             return

  2117. 

  2118.         pitem = self.fPluginList[pluginId]

  2119.         if pitem is None:

  2120.             return

  2121. 

  2122.         pitem.recreateWidget()

  2123. 

  2124.     # --------------------------------------------------------------------------------------------------------

  2125. 

  2126.     @pyqtSlot(int, int, str)

  2127.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2128.         if opcode == NSM_CALLBACK_INIT:

  2129.             return

  2130. 

  2131.         # Error

  2132.         elif opcode == NSM_CALLBACK_ERROR:

  2133.             pass

  2134. 

  2135.         # Reply

  2136.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2137.             self.fFirstEngineInit    = False

  2138.             self.fSessionManagerName = valueStr

  2139.             self.setProperWindowTitle()

  2140. 

  2141.         # Open

  2142.         elif opcode == NSM_CALLBACK_OPEN:

  2143.             self.fClientName      = os.path.basename(valueStr)

  2144.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2145.             self.setProperWindowTitle()

  2146. 

  2147.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2148.             self.slot_engineStop(True)

  2149.             return

  2150. 

  2151.         # Save

  2152.         elif opcode == NSM_CALLBACK_SAVE:

  2153.             self.saveProjectNow()

  2154. 

  2155.         # Session is Loaded

  2156.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2157.             pass

  2158. 

  2159.         # Show Optional Gui

  2160.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2161.             self.show()

  2162. 

  2163.         # Hide Optional Gui

  2164.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2165.             self.hide()

  2166. 

  2167.         self.host.nsm_ready(opcode)

  2168. 

  2169.     # --------------------------------------------------------------------------------------------------------

  2170. 

  2171.     def fixLogText(self, text):

  2172.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2173. 

  2174.     @pyqtSlot(int, int, int, int, float, str)

  2175.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2176.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2177. 

  2178.     @pyqtSlot(str)

  2179.     def slot_handleInfoCallback(self, info):

  2180.         QMessageBox.information(self, "Information", info)

  2181. 

  2182.     @pyqtSlot(str)

  2183.     def slot_handleErrorCallback(self, error):

  2184.         QMessageBox.critical(self, "Error", error)

  2185. 

  2186.     @pyqtSlot()

  2187.     def slot_handleQuitCallback(self):

  2188.         self.fIsProjectLoading = False

  2189.         self.killTimers()

  2190.         self.removeAllPlugins()

  2191.         self.projectLoadingFinished()

  2192. 

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

  2194. 

  2195.     @pyqtSlot()

  2196.     def slot_handleSIGUSR1(self):

  2197.         print("Got SIGUSR1 -> Saving project now")

  2198.         self.slot_fileSave()

  2199. 

  2200.     @pyqtSlot()

  2201.     def slot_handleSIGTERM(self):

  2202.         print("Got SIGTERM -> Closing now")

  2203.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2204.         self.slot_engineStop(True)

  2205. 

  2206.     # --------------------------------------------------------------------------------------------------------

  2207.     # Internal stuff

  2208. 

  2209.     def getExtraPtr(self, plugin):

  2210.         ptype = plugin['type']

  2211. 

  2212.         if ptype == PLUGIN_LADSPA:

  2213.             uniqueId = plugin['uniqueId']

  2214. 

  2215.             self.maybeLoadRDFs()

  2216. 

  2217.             for rdfItem in self.fLadspaRdfList:

  2218.                 if rdfItem.UniqueID == uniqueId:

  2219.                     return pointer(rdfItem)

  2220. 

  2221.         elif ptype == PLUGIN_SF2:

  2222.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2223.                 return self._true

  2224. 

  2225.         return None

  2226. 

  2227.     def maybeLoadRDFs(self):

  2228.         if not self.fLadspaRdfNeedsUpdate:

  2229.             return

  2230. 

  2231.         self.fLadspaRdfNeedsUpdate = False

  2232.         self.fLadspaRdfList = []

  2233. 

  2234.         if not haveLRDF:

  2235.             return

  2236. 

  2237.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2238.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2239. 

  2240.         if os.path.exists(frLadspaFile):

  2241.             frLadspa = open(frLadspaFile, 'r')

  2242. 

  2243.             try:

  2244.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2245.             except:

  2246.                 pass

  2247. 

  2248.             frLadspa.close()

  2249. 

  2250.     # --------------------------------------------------------------------------------------------------------

  2251. 

  2252.     def getPluginCount(self):

  2253.         return self.fPluginCount

  2254. 

  2255.     def getPluginItem(self, pluginId):

  2256.         if pluginId >= self.fPluginCount:

  2257.             return None

  2258. 

  2259.         pitem = self.fPluginList[pluginId]

  2260.         if pitem is None:

  2261.             return None

  2262.         #if False:

  2263.             #return CarlaRackItem(self, 0, False)

  2264. 

  2265.         return pitem

  2266. 

  2267.     def getPluginEditDialog(self, pluginId):

  2268.         if pluginId >= self.fPluginCount:

  2269.             return None

  2270. 

  2271.         pitem = self.fPluginList[pluginId]

  2272.         if pitem is None:

  2273.             return None

  2274.         if False:

  2275.             return PluginEdit(self, self.host, 0)

  2276. 

  2277.         return pitem.getEditDialog()

  2278. 

  2279.     def getPluginSlotWidget(self, pluginId):

  2280.         if pluginId >= self.fPluginCount:

  2281.             return None

  2282. 

  2283.         pitem = self.fPluginList[pluginId]

  2284.         if pitem is None:

  2285.             return None

  2286.         #if False:

  2287.             #return AbstractPluginSlot()

  2288. 

  2289.         return pitem.getWidget()

  2290. 

  2291.     # --------------------------------------------------------------------------------------------------------

  2292. 

  2293.     def waitForPendingEvents(self):

  2294.         pass

  2295. 

  2296.     # --------------------------------------------------------------------------------------------------------

  2297.     # show/hide event

  2298. 

  2299.     def showEvent(self, event):

  2300.         self.getAndRefreshRuntimeInfo()

  2301.         self.refreshTransport(True)

  2302.         QMainWindow.showEvent(self, event)

  2303. 

  2304.         # set our gui as parent for all plugins UIs

  2305.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2306.             if MACOS:

  2307.                 nsViewPtr = int(self.winId())

  2308.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2309.             else:

  2310.                 winIdStr = "%x" % int(self.winId())

  2311.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2312. 

  2313.     def hideEvent(self, event):

  2314.         # disable parent

  2315.         if not (self.host.isControl or self.host.isPlugin):

  2316.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2317. 

  2318.         QMainWindow.hideEvent(self, event)

  2319. 

  2320.     # --------------------------------------------------------------------------------------------------------

  2321.     # resize event

  2322. 

  2323.     def resizeEvent(self, event):

  2324.         QMainWindow.resizeEvent(self, event)

  2325. 

  2326.         if self.fWithCanvas:

  2327.             self.slot_miniCanvasCheckSize()

  2328. 

  2329.     # --------------------------------------------------------------------------------------------------------

  2330.     # timer event

  2331. 

  2332.     def refreshRuntimeInfo(self, load, xruns):

  2333.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2334.         txt2 = "" if (xruns == 1) else "s"

  2335.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2336.         self.ui.pb_dsp_load.setValue(int(load))

  2337. 

  2338.     def getAndRefreshRuntimeInfo(self):

  2339.         if not self.ui.pb_dsp_load.isVisible():

  2340.             return

  2341.         if not self.host.is_engine_running():

  2342.             return

  2343.         info = self.host.get_runtime_engine_info()

  2344.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2345. 

  2346.     def idleFast(self):

  2347.         self.host.engine_idle()

  2348.         self.refreshTransport()

  2349. 

  2350.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2351.             return

  2352. 

  2353.         for pitem in self.fPluginList:

  2354.             if pitem is None:

  2355.                 break

  2356. 

  2357.             pitem.getWidget().idleFast()

  2358. 

  2359.         for pluginId in self.fSelectedPlugins:

  2360.             self.fPeaksCleared = False

  2361.             if self.ui.peak_in.isVisible():

  2362.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2363.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2364.             if self.ui.peak_out.isVisible():

  2365.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2366.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2367.             return

  2368. 

  2369.         if self.fPeaksCleared:

  2370.             return

  2371. 

  2372.         self.fPeaksCleared = True

  2373.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2374.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2375.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2376.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2377. 

  2378.     def idleSlow(self):

  2379.         self.getAndRefreshRuntimeInfo()

  2380. 

  2381.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2382.             return

  2383. 

  2384.         for pitem in self.fPluginList:

  2385.             if pitem is None:

  2386.                 break

  2387. 

  2388.             pitem.getWidget().idleSlow()

  2389. 

  2390.     def timerEvent(self, event):

  2391.         if event.timerId() == self.fIdleTimerFast:

  2392.             self.idleFast()

  2393. 

  2394.         elif event.timerId() == self.fIdleTimerSlow:

  2395.             self.idleSlow()

  2396. 

  2397.         QMainWindow.timerEvent(self, event)

  2398. 

  2399.     # --------------------------------------------------------------------------------------------------------

  2400.     # color/style change event

  2401. 

  2402.     def changeEvent(self, event):

  2403.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2404.             self.updateStyle()

  2405.         QWidget.changeEvent(self, event)

  2406. 

  2407.     def updateStyle(self):

  2408.         # Rack padding images setup

  2409.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2410.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2411. 

  2412.         min_value = 0.07

  2413. 

  2414.         if PYQT_VERSION >= 0x50600:

  2415.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2416.         else:

  2417.             value_fix = 1.5

  2418. 

  2419.         bg_color = self.ui.rack.palette().window().color()

  2420.         bg_value = 1.0 - bg_color.blackF()

  2421.         if bg_value != 0.0 and bg_value < min_value:

  2422.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2423.         else:

  2424.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2425. 

  2426.         painter = QPainter()

  2427.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2428. 

  2429.         painter.begin(rack_imgL)

  2430.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2431.         painter.setBrush(pad_color)

  2432.         painter.drawRect(fillRect)

  2433.         painter.end()

  2434.         rack_pixmapL = QPixmap(rack_imgL)

  2435.         self.imgL_palette = QPalette()

  2436.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2437.         self.ui.pad_left.setPalette(self.imgL_palette)

  2438.         self.ui.pad_left.setAutoFillBackground(True)

  2439. 

  2440.         painter.begin(rack_imgR)

  2441.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2442.         painter.setBrush(pad_color)

  2443.         painter.drawRect(fillRect)

  2444.         painter.end()

  2445.         rack_pixmapR = QPixmap(rack_imgR)

  2446.         self.imgR_palette = QPalette()

  2447.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2448.         self.ui.pad_right.setPalette(self.imgR_palette)

  2449.         self.ui.pad_right.setAutoFillBackground(True)

  2450. 

  2451.     # --------------------------------------------------------------------------------------------------------

  2452.     # paint event

  2453. 

  2454.     #def paintEvent(self, event):

  2455.         #QMainWindow.paintEvent(self, event)

  2456. 

  2457.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2458.             #return

  2459. 

  2460.         #painter = QPainter(self)

  2461.         #painter.setBrush(QColor(36, 36, 36))

  2462.         #painter.setPen(QColor(62, 62, 62))

  2463.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2464. 

  2465.     # --------------------------------------------------------------------------------------------------------

  2466.     # close event

  2467. 

  2468.     def shouldIgnoreClose(self):

  2469.         if self.host.isControl or self.host.isPlugin:

  2470.             return False

  2471.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2472.             return False

  2473.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2474.             return QMessageBox.question(self, self.tr("Quit"),

  2475.                                               self.tr("Are you sure you want to quit Carla?"),

  2476.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2477.         return False

  2478. 

  2479.     def closeEvent(self, event):

  2480.         if self.shouldIgnoreClose():

  2481.             event.ignore()

  2482.             return

  2483. 

  2484.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2485.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2486.             self.fMacClosingHelper = False

  2487.             event.ignore()

  2488. 

  2489.             for i in reversed(range(self.fPluginCount)):

  2490.                 self.host.show_custom_ui(i, False)

  2491. 

  2492.             QTimer.singleShot(100, self.close)

  2493.             return

  2494. 

  2495.         self.killTimers()

  2496.         self.saveSettings()

  2497. 

  2498.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2499.             if not self.slot_engineStop(True):

  2500.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2501.                 event.ignore()

  2502.                 return

  2503. 

  2504.         QMainWindow.closeEvent(self, event)

  2505. 

  2506. # ------------------------------------------------------------------------------------------------

  2507. # Canvas callback

  2508. 

  2509. def canvasCallback(action, value1, value2, valueStr):

  2510.     host = gCarla.gui.host

  2511. 

  2512.     if action == patchcanvas.ACTION_GROUP_INFO:

  2513.         pass

  2514. 

  2515.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2516.         pass

  2517. 

  2518.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2519.         groupId = value1

  2520.         patchcanvas.splitGroup(groupId)

  2521.         gCarla.gui.updateMiniCanvasLater()

  2522. 

  2523.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2524.         groupId = value1

  2525.         patchcanvas.joinGroup(groupId)

  2526.         gCarla.gui.updateMiniCanvasLater()

  2527. 

  2528.     elif action == patchcanvas.ACTION_PORT_INFO:

  2529.         pass

  2530. 

  2531.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2532.         pass

  2533. 

  2534.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2535.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2536. 

  2537.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2538.             print("Connection failed:", host.get_last_error())

  2539. 

  2540.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2541.         connectionId = value1

  2542. 

  2543.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2544.             print("Disconnect failed:", host.get_last_error())

  2545. 

  2546.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2547.         pluginId = value1

  2548. 

  2549.         if not host.clone_plugin(pluginId):

  2550.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2551.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2552. 

  2553.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2554.         pluginId = value1

  2555.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2556. 

  2557.         if pwidget is not None:

  2558.             pwidget.showEditDialog()

  2559. 

  2560.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2561.         pluginId = value1

  2562.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2563. 

  2564.         if pwidget is not None:

  2565.             pwidget.showRenameDialog()

  2566. 

  2567.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2568.         pluginId = value1

  2569.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2570. 

  2571.         if pwidget is not None:

  2572.             pwidget.showReplaceDialog()

  2573. 

  2574.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2575.         pluginId = value1

  2576. 

  2577.         if not host.remove_plugin(pluginId):

  2578.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2579.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2580. 

  2581.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2582.         pluginId = value1

  2583.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2584. 

  2585.         if pwidget is not None:

  2586.             pwidget.showCustomUI()

  2587. 

  2588.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2589.         gCarla.gui.showPluginActionsMenu()

  2590. 

  2591. # ------------------------------------------------------------------------------------------------------------

  2592. # Engine callback

  2593. 

  2594. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2595.     # kdevelop likes this :)

  2596.     if False: host = CarlaHostNull()

  2597. 

  2598.     valueStr = charPtrToString(valueStr)

  2599. 

  2600.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2601.         host.processMode   = value1

  2602.         host.transportMode = value2

  2603.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2604.         host.processMode   = value1

  2605.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2606.         host.transportMode  = value1

  2607.         host.transportExtra = valueStr

  2608. 

  2609.     if action == ENGINE_CALLBACK_DEBUG:

  2610.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2611.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2612.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2613.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2614.         host.PluginRemovedCallback.emit(pluginId)

  2615.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2616.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2617.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2618.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2619.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2620.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2621.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2622.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2623.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2624.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2625.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2626.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2627.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2628.         host.ProgramChangedCallback.emit(pluginId, value1)

  2629.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2630.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2631.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2632.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2633.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2634.         host.UiStateChangedCallback.emit(pluginId, value1)

  2635.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2636.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2637.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2638.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2639.     elif action == ENGINE_CALLBACK_UPDATE:

  2640.         host.UpdateCallback.emit(pluginId)

  2641.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2642.         host.ReloadInfoCallback.emit(pluginId)

  2643.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2644.         host.ReloadParametersCallback.emit(pluginId)

  2645.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2646.         host.ReloadProgramsCallback.emit(pluginId)

  2647.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2648.         host.ReloadAllCallback.emit(pluginId)

  2649.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2650.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2651.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2652.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2653.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2654.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2655.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2656.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2657.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2658.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2659.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2660.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2661.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2662.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2663.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2664.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2665.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2666.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2667.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2668.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2669.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2670.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2671.         host.EngineStoppedCallback.emit()

  2672.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2673.         host.ProcessModeChangedCallback.emit(value1)

  2674.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2675.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2676.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2677.         host.BufferSizeChangedCallback.emit(value1)

  2678.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2679.         host.SampleRateChangedCallback.emit(valuef)

  2680.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2681.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2682.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2683.         host.ProjectLoadFinishedCallback.emit()

  2684.     elif action == ENGINE_CALLBACK_NSM:

  2685.         host.NSMCallback.emit(value1, value2, valueStr)

  2686.     elif action == ENGINE_CALLBACK_IDLE:

  2687.         QApplication.processEvents()

  2688.     elif action == ENGINE_CALLBACK_INFO:

  2689.         host.InfoCallback.emit(valueStr)

  2690.     elif action == ENGINE_CALLBACK_ERROR:

  2691.         host.ErrorCallback.emit(valueStr)

  2692.     elif action == ENGINE_CALLBACK_QUIT:

  2693.         host.QuitCallback.emit()

  2694. 

  2695. # ------------------------------------------------------------------------------------------------------------

  2696. # File callback

  2697. 

  2698. def fileCallback(ptr, action, isDir, title, filter):

  2699.     title  = charPtrToString(title)

  2700.     filter = charPtrToString(filter)

  2701. 

  2702.     if action == FILE_CALLBACK_OPEN:

  2703.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2704.     elif action == FILE_CALLBACK_SAVE:

  2705.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2706.     else:

  2707.         ret, ok = ("", "")

  2708. 

  2709.     # FIXME use ok value, test if it works as expected

  2710.     if not ret:

  2711.         return None

  2712. 

  2713.     # FIXME

  2714.     global fileRet

  2715.     fileRet = c_char_p(ret.encode("utf-8"))

  2716.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2717.     return retval.contents.value

  2718. 

  2719. # ------------------------------------------------------------------------------------------------------------

  2720. # Init host

  2721. 

  2722. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2723.     pathBinaries, pathResources = getPaths(libPrefix)

  2724. 

  2725.     # --------------------------------------------------------------------------------------------------------

  2726.     # Check if we should open main lib as local or global

  2727. 

  2728.     settings = QSettings("falkTX", "Carla2")

  2729. 

  2730.     try:

  2731.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2732.     except:

  2733.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2734. 

  2735.     # --------------------------------------------------------------------------------------------------------

  2736.     # Fail if binary dir is not found

  2737. 

  2738.     if not os.path.exists(pathBinaries):

  2739.         if failError:

  2740.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2741.             sys.exit(1)

  2742.         return

  2743. 

  2744.     # --------------------------------------------------------------------------------------------------------

  2745.     # Set Carla library name

  2746. 

  2747.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2748.     libname   = os.path.join(pathBinaries, libname)

  2749.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2750. 

  2751.     # --------------------------------------------------------------------------------------------------------

  2752.     # Print info

  2753. 

  2754.     print("Carla %s started, status:" % VERSION)

  2755.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2756.     print("  Qt version:     %s" % qVersion())

  2757.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2758.     print("  Binary dir:     %s" % pathBinaries)

  2759.     print("  Resources dir:  %s" % pathResources)

  2760. 

  2761.     # --------------------------------------------------------------------------------------------------------

  2762.     # Init host

  2763. 

  2764.     if failError:

  2765.         # no try

  2766.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2767.     else:

  2768.         try:

  2769.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2770.         except:

  2771.             host = CarlaHostQtNull()

  2772. 

  2773.     host.isControl = isControl

  2774.     host.isPlugin  = isPlugin

  2775. 

  2776.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2777.     host.set_file_callback(fileCallback)

  2778. 

  2779.     # If it's a plugin the paths are already set

  2780.     if not isPlugin:

  2781.         host.pathBinaries  = pathBinaries

  2782.         host.pathResources = pathResources

  2783.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2784.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2785. 

  2786.         if not isControl:

  2787.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2788. 

  2789.     # --------------------------------------------------------------------------------------------------------

  2790.     # Init utils

  2791. 

  2792.     gCarla.utils = CarlaUtils(utilsname)

  2793.     gCarla.utils.set_process_name(os.path.basename(initName))

  2794. 

  2795.     try:

  2796.         sys.stdout.flush()

  2797.     except:

  2798.         pass

  2799. 

  2800.     sys.stdout = CarlaPrint(False)

  2801.     sys.stderr = CarlaPrint(True)

  2802.     sys.excepthook = sys_excepthook

  2803. 

  2804.     # --------------------------------------------------------------------------------------------------------

  2805.     # Done

  2806. 

  2807.     return host

  2808. 

  2809. # ------------------------------------------------------------------------------------------------------------

  2810. # Load host settings

  2811. 

  2812. def loadHostSettings(host):

  2813.     # kdevelop likes this :)

  2814.     if False: host = CarlaHostNull()

  2815. 

  2816.     settings = QSettings("falkTX", "Carla2")

  2817. 

  2818.     try:

  2819.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2820.     except:

  2821.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2822. 

  2823.     try:

  2824.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2825.     except:

  2826.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2827. 

  2828.     try:

  2829.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2830.     except:

  2831.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2832. 

  2833.     try:

  2834.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2835.     except:

  2836.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2837. 

  2838.     try:

  2839.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2840.     except:

  2841.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2842. 

  2843.     try:

  2844.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2845.     except:

  2846.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2847. 

  2848.     try:

  2849.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2850.     except:

  2851.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2852. 

  2853.     try:

  2854.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2855.     except:

  2856.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2857. 

  2858.     try:

  2859.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2860.     except:

  2861.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2862. 

  2863.     try:

  2864.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2865.     except:

  2866.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2867. 

  2868.     try:

  2869.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2870.     except:

  2871.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2872. 

  2873.     try:

  2874.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2875.     except:

  2876.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2877. 

  2878.     try:

  2879.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2880.     except:

  2881.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2882. 

  2883.     if host.isPlugin:

  2884.         return

  2885. 

  2886.     try:

  2887.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  2888.     except:

  2889.         host.transportExtra = ""

  2890. 

  2891.     # enums

  2892.     if host.audioDriverForced is None:

  2893.         try:

  2894.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2895.         except:

  2896.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2897. 

  2898.     if not host.processModeForced:

  2899.         try:

  2900.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2901.         except:

  2902.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2903. 

  2904.     host.nextProcessMode = host.processMode

  2905. 

  2906.     # --------------------------------------------------------------------------------------------------------

  2907.     # fix things if needed

  2908. 

  2909.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  2910.         if LADISH_APP_NAME:

  2911.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2912.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2913. 

  2914.         else:

  2915.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  2916. 

  2917.     if gCarla.nogui:

  2918.         host.showLogs = False

  2919. 

  2920.     # --------------------------------------------------------------------------------------------------------

  2921.     # run headless host now if nogui option enabled

  2922. 

  2923.     if gCarla.nogui:

  2924.         runHostWithoutUI(host)

  2925. 

  2926. # ------------------------------------------------------------------------------------------------------------

  2927. # Set host settings

  2928. 

  2929. def setHostSettings(host):

  2930.     # kdevelop likes this :)

  2931.     if False: host = CarlaHostNull()

  2932. 

  2933.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2934.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2935.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2936.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2937.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2938.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2939.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2940. 

  2941.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2942.         return

  2943. 

  2944.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2945.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  2946.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2947. 

  2948. # ------------------------------------------------------------------------------------------------------------

  2949. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2950. 

  2951. def setEngineSettings(host):

  2952.     # kdevelop likes this :)

  2953.     if False: host = CarlaHostNull()

  2954. 

  2955.     # --------------------------------------------------------------------------------------------------------

  2956.     # do nothing if control

  2957. 

  2958.     if host.isControl:

  2959.         return "Control"

  2960. 

  2961.     # --------------------------------------------------------------------------------------------------------

  2962. 

  2963.     settings = QSettings("falkTX", "Carla2")

  2964. 

  2965.     # --------------------------------------------------------------------------------------------------------

  2966.     # main settings

  2967. 

  2968.     setHostSettings(host)

  2969. 

  2970.     # --------------------------------------------------------------------------------------------------------

  2971.     # plugin paths

  2972. 

  2973.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2974.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2975.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2976.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2977.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  2978.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2979.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2980. 

  2981.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2982.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2983.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2984.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2985.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  2986.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2987.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2988. 

  2989.     # --------------------------------------------------------------------------------------------------------

  2990.     # don't continue if plugin

  2991. 

  2992.     if host.isPlugin:

  2993.         return "Plugin"

  2994. 

  2995.     # --------------------------------------------------------------------------------------------------------

  2996.     # osc settings

  2997. 

  2998.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  2999. 

  3000.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3001.         portNumTCP = -1

  3002.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3003.         portNumTCP = 0

  3004.     else:

  3005.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3006. 

  3007.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3008.         portNumUDP = -1

  3009.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3010.         portNumUDP = 0

  3011.     else:

  3012.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3013. 

  3014.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3015.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3016.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3017. 

  3018.     # --------------------------------------------------------------------------------------------------------

  3019.     # wine settings

  3020. 

  3021.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3022.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3023.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3024.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3025.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3026.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3027. 

  3028.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3029.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3030.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3031.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3032.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3033.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3034. 

  3035.     # --------------------------------------------------------------------------------------------------------

  3036.     # driver and device settings

  3037. 

  3038.     # driver name

  3039.     if host.audioDriverForced is not None:

  3040.         audioDriver = host.audioDriverForced

  3041.     else:

  3042.         try:

  3043.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3044.         except:

  3045.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3046. 

  3047.     # driver options

  3048.     try:

  3049.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3050.     except:

  3051.         audioDevice = ""

  3052. 

  3053.     try:

  3054.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3055.     except:

  3056.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3057. 

  3058.     try:

  3059.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3060.     except:

  3061.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3062. 

  3063.     try:

  3064.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3065.     except:

  3066.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3067. 

  3068.     # Only setup audio things if engine is not running

  3069.     if not host.is_engine_running():

  3070.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3071. 

  3072.         if not audioDriver.startswith("JACK"):

  3073.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3074.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3075.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3076. 

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

  3078.     # fix things if needed

  3079. 

  3080.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3081.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3082.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3083. 

  3084.     # --------------------------------------------------------------------------------------------------------

  3085.     # return selected driver name

  3086. 

  3087.     return audioDriver

  3088. 

  3089. # ------------------------------------------------------------------------------------------------------------

  3090. # Run Carla without showing UI

  3091. 

  3092. def runHostWithoutUI(host):

  3093.     # kdevelop likes this :)

  3094.     if False: host = CarlaHostNull()

  3095. 

  3096.     # --------------------------------------------------------------------------------------------------------

  3097.     # Some initial checks

  3098. 

  3099.     if not gCarla.nogui:

  3100.         return

  3101. 

  3102.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3103. 

  3104.     if not projectFile:

  3105.         print("Carla no-gui mode can only be used together with a project file.")

  3106.         sys.exit(1)

  3107. 

  3108.     # --------------------------------------------------------------------------------------------------------

  3109.     # Additional imports

  3110. 

  3111.     from time import sleep

  3112. 

  3113.     # --------------------------------------------------------------------------------------------------------

  3114.     # Init engine

  3115. 

  3116.     audioDriver = setEngineSettings(host)

  3117.     if not host.engine_init(audioDriver, "Carla"):

  3118.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3119.         sys.exit(1)

  3120. 

  3121.     if not host.load_project(projectFile):

  3122.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3123.         host.engine_close()

  3124.         sys.exit(1)

  3125. 

  3126.     # --------------------------------------------------------------------------------------------------------

  3127.     # Idle

  3128. 

  3129.     print("Carla ready!")

  3130. 

  3131.     while host.is_engine_running() and not gCarla.term:

  3132.         host.engine_idle()

  3133.         sleep(0.0333) # 30 Hz

  3134. 

  3135.     # --------------------------------------------------------------------------------------------------------

  3136.     # Stop

  3137. 

  3138.     host.engine_close()

  3139.     sys.exit(0)

  3140. 

  3141. # ------------------------------------------------------------------------------------------------------------