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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

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

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

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

  25. try:

  26.     from PyQt5.Qt import PYQT_VERSION

  27. except ImportError:

  28.     PYQT_VERSION = 0x50600

  29. 

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

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

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

  33. 

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

  35. # Imports (Custom)

  36. 

  37. import ui_carla_host

  38. 

  39. from carla_app import *

  40. from carla_database import *

  41. from carla_settings import *

  42. from carla_utils import *

  43. from carla_widgets import *

  44. 

  45. from patchcanvas import patchcanvas

  46. from widgets.digitalpeakmeter import DigitalPeakMeter

  47. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  48. 

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

  50. # Try Import OpenGL

  51. 

  52. try:

  53.     from PyQt5.QtOpenGL import QGLWidget

  54.     hasGL = True

  55. except:

  56.     hasGL = False

  57. 

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

  59. # Safe exception hook, needed for PyQt5

  60. 

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

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

  63. 

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

  65. # Session Management support

  66. 

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

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

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

  70. 

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

  72. # Small print helper

  73. 

  74. def processMode2Str(processMode):

  75.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  76.         return "Single client"

  77.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  78.         return "Multi client"

  79.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  80.         return "Continuous Rack"

  81.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  82.         return "Patchbay"

  83.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  84.         return "Bridge"

  85.     return "Unknown"

  86. 

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

  88. # Carla Print class

  89. 

  90. class CarlaPrint:

  91.     def __init__(self, err):

  92.         self.err = err

  93. 

  94.     def flush(self):

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

  96. 

  97.     def write(self, string):

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

  99. 

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

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

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

  105.     # signals

  106.     SIGTERM = pyqtSignal()

  107.     SIGUSR1 = pyqtSignal()

  108. 

  109.     # CustomActions

  110.     CUSTOM_ACTION_NONE         = 0

  111.     CUSTOM_ACTION_APP_CLOSE    = 1

  112.     CUSTOM_ACTION_PROJECT_LOAD = 2

  113. 

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

  115. 

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

  117.         QMainWindow.__init__(self, parent)

  118.         self.host = host

  119.         self.ui = ui_carla_host.Ui_CarlaHostW()

  120.         self.ui.setupUi(self)

  121.         gCarla.gui = self

  122. 

  123.         if False:

  124.             # kdevelop likes this :)

  125.             host = CarlaHostNull()

  126.             self.host = host

  127. 

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

  129. 

  130.         self.fParentOrSelf = parent or self

  131. 

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

  133.         # Internal stuff

  134. 

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

  136.         self.fIdleTimerFast = 0

  137.         self.fIdleTimerSlow = 0

  138. 

  139.         self.fLadspaRdfNeedsUpdate = True

  140.         self.fLadspaRdfList = []

  141. 

  142.         self.fPluginCount = 0

  143.         self.fPluginList  = []

  144. 

  145.         self.fProjectFilename  = ""

  146.         self.fIsProjectLoading = False

  147.         self.fCurrentlyRemovingAllPlugins = False

  148. 

  149.         self.fLastTransportBPM   = 0.0

  150.         self.fLastTransportFrame = 0

  151.         self.fLastTransportState = False

  152.         self.fBufferSize         = 0

  153.         self.fSampleRate         = 0.0

  154.         self.fOscAddressTCP      = ""

  155.         self.fOscAddressUDP      = ""

  156.         self.fOscReportedHost    = ""

  157. 

  158.         if MACOS:

  159.             self.fMacClosingHelper = True

  160. 

  161.         # CancelableActionCallback Box

  162.         self.fCancelableActionBox = None

  163. 

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

  165.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  166. 

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

  168.         self.fFirstEngineInit = True

  169. 

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

  171.         self.fSavedSettings = {}

  172. 

  173.         if host.isControl:

  174.             self.fClientName         = "Carla-Control"

  175.             self.fSessionManagerName = "Control"

  176.         elif host.isPlugin:

  177.             self.fClientName         = "Carla-Plugin"

  178.             self.fSessionManagerName = "Plugin"

  179.         elif LADISH_APP_NAME:

  180.             self.fClientName         = LADISH_APP_NAME

  181.             self.fSessionManagerName = "LADISH"

  182.         elif NSM_URL and host.nsmOK:

  183.             self.fClientName         = "Carla.tmp"

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

  185.         else:

  186.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  187.             self.fSessionManagerName = ""

  188. 

  189.         # ----------------------------------------------------------------------------------------------------

  190.         # Internal stuff (patchbay)

  191. 

  192.         self.fExportImage = QImage()

  193. 

  194.         self.fPeaksCleared = True

  195. 

  196.         self.fExternalPatchbay = False

  197.         self.fSelectedPlugins  = []

  198. 

  199.         self.fCanvasWidth  = 0

  200.         self.fCanvasHeight = 0

  201.         self.fMiniCanvasUpdateTimeout = 0

  202. 

  203.         self.fWithCanvas = withCanvas

  204. 

  205.         # ----------------------------------------------------------------------------------------------------

  206.         # Set up GUI (engine stopped)

  207. 

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

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

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

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

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

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

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

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

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

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

  218. 

  219.             if self.host.isControl:

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

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

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

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

  224.             else:

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

  226. 

  227.                 if not withCanvas:

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

  229. 

  230.         else:

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

  232. 

  233.             if WINDOWS:

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

  235. 

  236.         if self.host.isControl:

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

  238.         else:

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

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

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

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

  243. 

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

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

  246. 

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

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

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

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

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

  252. 

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

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

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

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

  257. 

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

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

  260. 

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

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

  263. 

  264.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  282.             self.ui.tw_miniCanvas.hide()

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

  284.             if WINDOWS:

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

  286. 

  287.         # ----------------------------------------------------------------------------------------------------

  288.         # Set up GUI (disk)

  289. 

  290.         exts = gCarla.utils.get_supported_file_extensions()

  291. 

  292.         self.fDirModel = QFileSystemModel(self)

  293.         self.fDirModel.setRootPath(HOME)

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

  295. 

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

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

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

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

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

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

  302. 

  303.         # ----------------------------------------------------------------------------------------------------

  304.         # Set up GUI (transport)

  305. 

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

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

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

  309. 

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

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

  312. 

  313.         if minLabelWidth < labelTimeWidth:

  314.             minLabelWidth = labelTimeWidth

  315.         if minLabelWidth < labelBBTWidth:

  316.             minLabelWidth = labelBBTWidth

  317. 

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

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

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

  321. 

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

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

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

  325. 

  326.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  339. 

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

  341. 

  342.         # ----------------------------------------------------------------------------------------------------

  343.         # Set up GUI (rack)

  344. 

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

  346. 

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

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

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

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

  351. 

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

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

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

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

  356. 

  357.         self.updateStyle()

  358. 

  359.         self.ui.rack.setStyleSheet("""

  360.           CarlaRackList#CarlaRackList {

  361.             background-color: black;

  362.           }

  363.         """)

  364. 

  365.         # ----------------------------------------------------------------------------------------------------

  366.         # Set up GUI (patchbay)

  367. 

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

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

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

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

  372. 

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

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

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

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

  377. 

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

  379.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  381. 

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

  383. 

  384.         self.ui.miniCanvasPreview.setRealParent(self)

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

  386. 

  387.         # ----------------------------------------------------------------------------------------------------

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

  389. 

  390.         if MACOS:

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

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

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

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

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

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

  397. 

  398.         # ----------------------------------------------------------------------------------------------------

  399.         # Load Settings

  400. 

  401.         self.loadSettings(True)

  402. 

  403.         # ----------------------------------------------------------------------------------------------------

  404.         # Set-up Canvas

  405. 

  406.         if withCanvas:

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

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

  409. 

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

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

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

  413. 

  414.             self.setupCanvas()

  415. 

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

  417.         # Connect actions to functions

  418. 

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

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

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

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

  423. 

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

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

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

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

  428. 

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

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

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

  432. 

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

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

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

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

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

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

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

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

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

  442. 

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

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

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

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

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

  448. 

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

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

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

  452. 

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

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

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

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

  457. 

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

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

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

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

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

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

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

  465. 

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

  467. 

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

  469. 

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

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

  472. 

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

  474. 

  475.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  493. 

  494.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  495.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  496. 

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

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

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

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

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

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

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

  504. 

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

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

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

  508. 

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

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

  511. 

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

  513. 

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

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

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

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

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

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

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

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

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

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

  524. 

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

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

  527. 

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

  529. 

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

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

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

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

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

  535. 

  536.         # ----------------------------------------------------------------------------------------------------

  537.         # Final setup

  538. 

  539.         self.ui.text_logs.clear()

  540.         self.setProperWindowTitle()

  541. 

  542.         # Disable non-supported features

  543.         features = gCarla.utils.get_supported_features()

  544. 

  545.         if "link" not in features:

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

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

  548. 

  549.         if "juce" not in features:

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

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

  552. 

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

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

  555.             self.startTimers()

  556. 

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

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

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

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

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

  562. 

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

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

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

  566. 

  567.         # Load initial project file if set

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

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

  570. 

  571.             if projectFile:

  572.                 self.loadProjectLater(projectFile)

  573. 

  574.         # For NSM we wait for the open message

  575.         if NSM_URL and host.nsmOK:

  576.             host.nsm_ready(NSM_CALLBACK_INIT)

  577.             return

  578. 

  579.         if not host.isControl:

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

  581. 

  582.     # --------------------------------------------------------------------------------------------------------

  583.     # Setup

  584. 

  585.     def compactPlugin(self, pluginId):

  586.         if pluginId > self.fPluginCount:

  587.             return

  588. 

  589.         pitem = self.fPluginList[pluginId]

  590. 

  591.         if pitem is None:

  592.             return

  593. 

  594.         pitem.recreateWidget(True)

  595. 

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

  597.         if pluginId > self.fPluginCount:

  598.             return

  599. 

  600.         pitem = self.fPluginList[pluginId]

  601. 

  602.         if pitem is None:

  603.             return

  604. 

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

  606.         pitem.recreateWidget(newColor = color)

  607. 

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

  609.         if pluginId > self.fPluginCount:

  610.             return

  611. 

  612.         pitem = self.fPluginList[pluginId]

  613. 

  614.         if pitem is None:

  615.             return

  616. 

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

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

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

  620.         else:

  621.             pitem.recreateWidget(newSkin = skin)

  622. 

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

  624.         if pluginIdA == pluginIdB:

  625.             return

  626.         if pluginIdA < 0 or pluginIdB < 0:

  627.             return

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

  629.             return

  630. 

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

  632. 

  633.         itemA = self.fPluginList[pluginIdA]

  634.         compactA = itemA.isCompacted()

  635.         guiShownA = itemA.isGuiShown()

  636. 

  637.         itemB = self.fPluginList[pluginIdB]

  638.         compactB = itemB.isCompacted()

  639.         guiShownB = itemB.isGuiShown()

  640. 

  641.         itemA.setPluginId(pluginIdA)

  642.         itemA.recreateWidget2(compactB, guiShownB)

  643. 

  644.         itemB.setPluginId(pluginIdB)

  645.         itemB.recreateWidget2(compactA, guiShownA)

  646. 

  647.         if self.fWithCanvas:

  648.             self.slot_canvasRefresh()

  649. 

  650.     def setLoadRDFsNeeded(self):

  651.         self.fLadspaRdfNeedsUpdate = True

  652. 

  653.     def setProperWindowTitle(self):

  654.         title = self.fClientName

  655. 

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

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

  658.         if self.fSessionManagerName:

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

  660. 

  661.         self.setWindowTitle(title)

  662. 

  663.     def updateBufferSize(self, newBufferSize):

  664.         if self.fBufferSize == newBufferSize:

  665.             return

  666.         self.fBufferSize = newBufferSize

  667.         self.ui.cb_buffer_size.clear()

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

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

  670. 

  671.     def updateSampleRate(self, newSampleRate):

  672.         if self.fSampleRate == newSampleRate:

  673.             return

  674.         self.fSampleRate = newSampleRate

  675.         self.ui.cb_sample_rate.clear()

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

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

  678.         self.refreshTransport(True)

  679. 

  680.     # --------------------------------------------------------------------------------------------------------

  681.     # Files

  682. 

  683.     def makeExtraFilename(self):

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

  685. 

  686.     def loadProjectNow(self):

  687.         if not self.fProjectFilename:

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

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

  690.             return

  691. 

  692.         self.projectLoadingStarted()

  693.         self.fIsProjectLoading = True

  694. 

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

  696.             self.fIsProjectLoading = False

  697.             self.projectLoadingFinished()

  698. 

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

  700.                              self.host.get_last_error(),

  701.                              QMessageBox.Ok, QMessageBox.Ok)

  702. 

  703.     def loadProjectLater(self, filename):

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

  705.         self.setProperWindowTitle()

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

  707. 

  708.     def saveProjectNow(self):

  709.         if not self.fProjectFilename:

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

  711. 

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

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

  714.                              self.host.get_last_error(),

  715.                              QMessageBox.Ok, QMessageBox.Ok)

  716.             return

  717. 

  718.         if not self.fWithCanvas:

  719.             return

  720. 

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

  722.             json.dump({

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

  724.             }, fh)

  725. 

  726.     def projectLoadingStarted(self):

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

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

  729. 

  730.     def projectLoadingFinished(self):

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

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

  733. 

  734.         if not self.fWithCanvas:

  735.             return

  736. 

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

  738. 

  739.         extrafile = self.makeExtraFilename()

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

  741.             return

  742. 

  743.         try:

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

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

  746.         except:

  747.             return

  748. 

  749.         patchcanvas.restoreGroupPositions(canvasdata)

  750. 

  751.     # --------------------------------------------------------------------------------------------------------

  752.     # Files (menu actions)

  753. 

  754.     @pyqtSlot()

  755.     def slot_fileNew(self):

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

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

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

  759.             return

  760. 

  761.         self.pluginRemoveAll()

  762.         self.fProjectFilename = ""

  763.         self.setProperWindowTitle()

  764.         self.host.clear_project_filename()

  765. 

  766.     @pyqtSlot()

  767.     def slot_fileOpen(self):

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

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

  770. 

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

  772.         if not filename:

  773.             return

  774. 

  775.         newFile = True

  776. 

  777.         if self.fPluginCount > 0:

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

  779.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  781. 

  782.         if newFile:

  783.             self.pluginRemoveAll()

  784.             self.fProjectFilename = filename

  785.             self.setProperWindowTitle()

  786.             self.loadProjectNow()

  787.         else:

  788.             filenameOld = self.fProjectFilename

  789.             self.fProjectFilename = filename

  790.             self.loadProjectNow()

  791.             self.fProjectFilename = filenameOld

  792. 

  793.     @pyqtSlot()

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

  795.         if self.fProjectFilename and not saveAs:

  796.             return self.saveProjectNow()

  797. 

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

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

  800. 

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

  802.         if not filename:

  803.             return

  804. 

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

  806.             filename += ".carxp"

  807. 

  808.         if self.fProjectFilename != filename:

  809.             self.fProjectFilename = filename

  810.             self.setProperWindowTitle()

  811. 

  812.         self.saveProjectNow()

  813. 

  814.     @pyqtSlot()

  815.     def slot_fileSaveAs(self):

  816.         self.slot_fileSave(True)

  817. 

  818.     @pyqtSlot()

  819.     def slot_loadProjectNow(self):

  820.         self.loadProjectNow()

  821. 

  822.     # --------------------------------------------------------------------------------------------------------

  823.     # Engine (menu actions)

  824. 

  825.     @pyqtSlot()

  826.     def slot_engineStart(self):

  827.         audioDriver = setEngineSettings(self.host)

  828.         firstInit   = self.fFirstEngineInit

  829. 

  830.         self.fFirstEngineInit = False

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

  832. 

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

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

  835.                 settings = QSettings()

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

  837.                 del settings

  838.                 self.host.transport_bpm(lastBpm)

  839.             return

  840. 

  841.         elif firstInit:

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

  843.             return

  844. 

  845.         audioError = self.host.get_last_error()

  846. 

  847.         if audioError:

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

  849.         else:

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

  851. 

  852.     @pyqtSlot()

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

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

  855. 

  856.         if self.fPluginCount == 0:

  857.             self.engineStopFinal()

  858.             return True

  859. 

  860.         if not forced:

  861.             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"

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

  863.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  864.             if ask != QMessageBox.Yes:

  865.                 return False

  866. 

  867.         return self.slot_engineStopTryAgain()

  868. 

  869.     @pyqtSlot()

  870.     def slot_engineConfig(self):

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

  872. 

  873.         if not dialog.exec_():

  874.             return

  875. 

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

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

  878.             return

  879. 

  880.         bufferSize, sampleRate = dialog.getValues()

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

  882. 

  883.     @pyqtSlot()

  884.     def slot_engineStopTryAgain(self):

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

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

  887.             return False

  888. 

  889.         self.engineStopFinal()

  890.         return True

  891. 

  892.     def engineStopFinal(self):

  893.         self.killTimers()

  894. 

  895.         if self.host.is_engine_running():

  896.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  897.                 self.removeAllPlugins()

  898.             elif self.fPluginCount != 0:

  899.                 self.fCurrentlyRemovingAllPlugins = True

  900.                 self.projectLoadingStarted()

  901. 

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

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

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

  905. 

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

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

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

  909. 

  910.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  911.             self.close()

  912.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  913.             self.slot_engineStart()

  914.             self.loadProjectNow()

  915.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  916. 

  917.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  918. 

  919.     # --------------------------------------------------------------------------------------------------------

  920.     # Engine (host callbacks)

  921. 

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

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

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

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

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

  927. 

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

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

  930. 

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

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

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

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

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

  936.             self.fExternalPatchbay = False

  937.         else:

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

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

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

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

  942.             self.fExternalPatchbay = True

  943. 

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

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

  946. 

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

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

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

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

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

  952. 

  953.         if not self.host.isPlugin:

  954.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  955. 

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

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

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

  959. 

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

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

  962. 

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

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

  965. 

  966.         self.updateBufferSize(bufferSize)

  967.         self.updateSampleRate(int(sampleRate))

  968.         self.refreshRuntimeInfo(0.0, 0)

  969.         self.startTimers()

  970. 

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

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

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

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

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

  976. 

  977.     @pyqtSlot()

  978.     def slot_handleEngineStoppedCallback(self):

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

  980. 

  981.         patchcanvas.clear()

  982.         self.killTimers()

  983. 

  984.         # just in case

  985.         self.removeAllPlugins()

  986.         self.refreshRuntimeInfo(0.0, 0)

  987. 

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

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

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

  991. 

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

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

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

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

  996. 

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

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

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

  1000. 

  1001.     @pyqtSlot(int, str)

  1002.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1003.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1004. 

  1005.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1006.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1007. 

  1008.     @pyqtSlot(int)

  1009.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1010.         self.updateBufferSize(newBufferSize)

  1011. 

  1012.     @pyqtSlot(float)

  1013.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1014.         self.updateSampleRate(int(newSampleRate))

  1015. 

  1016.     @pyqtSlot(int, bool, str)

  1017.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1018.         if self.fCancelableActionBox is not None:

  1019.             self.fCancelableActionBox.close()

  1020. 

  1021.         if started:

  1022.             self.fCancelableActionBox = QMessageBox(self)

  1023.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1024.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1025.             self.fCancelableActionBox.setText(action)

  1026.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1027.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1028.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1029.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1030.             self.fCancelableActionBox.show()

  1031. 

  1032.         else:

  1033.             self.fCancelableActionBox = None

  1034. 

  1035.     @pyqtSlot()

  1036.     def slot_canlableActionBoxClicked(self):

  1037.         self.host.cancel_engine_action()

  1038. 

  1039.     @pyqtSlot()

  1040.     def slot_handleProjectLoadFinishedCallback(self):

  1041.         self.fIsProjectLoading = False

  1042.         self.projectLoadingFinished()

  1043. 

  1044.     # --------------------------------------------------------------------------------------------------------

  1045.     # Plugins

  1046. 

  1047.     def removeAllPlugins(self):

  1048.         self.ui.act_plugin_remove_all.setEnabled(False)

  1049.         patchcanvas.handleAllPluginsRemoved()

  1050. 

  1051.         while self.ui.listWidget.takeItem(0):

  1052.             pass

  1053. 

  1054.         self.clearSideStuff()

  1055. 

  1056.         for pitem in self.fPluginList:

  1057.             if pitem is None:

  1058.                 continue

  1059. 

  1060.             pitem.close()

  1061.             del pitem

  1062. 

  1063.         self.fPluginCount = 0

  1064.         self.fPluginList  = []

  1065. 

  1066.     # --------------------------------------------------------------------------------------------------------

  1067.     # Plugins (menu actions)

  1068. 

  1069.     def showAddPluginDialog(self):

  1070.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1071. 

  1072.         if not dialog.exec_():

  1073.             return

  1074. 

  1075.         if not self.host.is_engine_running():

  1076.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1077.             return

  1078. 

  1079.         btype    = dialog.fRetPlugin['build']

  1080.         ptype    = dialog.fRetPlugin['type']

  1081.         filename = dialog.fRetPlugin['filename']

  1082.         label    = dialog.fRetPlugin['label']

  1083.         uniqueId = dialog.fRetPlugin['uniqueId']

  1084.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1085. 

  1086.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1087. 

  1088.     def showAddJackAppDialog(self):

  1089.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1090. 

  1091.         if not dialog.exec_():

  1092.             return

  1093. 

  1094.         if not self.host.is_engine_running():

  1095.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1096.             return

  1097. 

  1098.         return dialog.getCommandAndFlags()

  1099. 

  1100.     @pyqtSlot()

  1101.     def showPluginActionsMenu(self):

  1102.         menu = QMenu(self)

  1103. 

  1104.         menu.addSection("Plugins")

  1105.         menu.addAction(self.ui.act_plugin_add)

  1106.         menu.addAction(self.ui.act_plugin_remove_all)

  1107. 

  1108.         menu.addSection("All plugins (macros)")

  1109.         menu.addAction(self.ui.act_plugins_enable)

  1110.         menu.addAction(self.ui.act_plugins_disable)

  1111.         menu.addSeparator()

  1112.         menu.addAction(self.ui.act_plugins_volume100)

  1113.         menu.addAction(self.ui.act_plugins_mute)

  1114.         menu.addSeparator()

  1115.         menu.addAction(self.ui.act_plugins_wet100)

  1116.         menu.addAction(self.ui.act_plugins_bypass)

  1117.         menu.addSeparator()

  1118.         menu.addAction(self.ui.act_plugins_center)

  1119.         menu.addSeparator()

  1120.         menu.addAction(self.ui.act_plugins_compact)

  1121.         menu.addAction(self.ui.act_plugins_expand)

  1122. 

  1123.         menu.exec_(QCursor.pos())

  1124. 

  1125.     @pyqtSlot()

  1126.     def slot_pluginAdd(self):

  1127.         data = self.showAddPluginDialog()

  1128. 

  1129.         if data is None:

  1130.             return

  1131. 

  1132.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1133. 

  1134.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1135.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1136. 

  1137.     @pyqtSlot()

  1138.     def slot_confirmRemoveAll(self):

  1139.         if self.fPluginCount == 0:

  1140.             return

  1141. 

  1142.         if QMessageBox.question(self, self.tr("Remove All"),

  1143.                                       self.tr("Are you sure you want to remove all plugins?"),

  1144.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1145.             return

  1146. 

  1147.         self.pluginRemoveAll()

  1148. 

  1149.     def pluginRemoveAll(self):

  1150.         if self.fPluginCount == 0:

  1151.             return

  1152. 

  1153.         self.fCurrentlyRemovingAllPlugins = True

  1154.         self.projectLoadingStarted()

  1155. 

  1156.         if not self.host.remove_all_plugins():

  1157.             self.projectLoadingFinished()

  1158.             self.fCurrentlyRemovingAllPlugins = False

  1159.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1160.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1161. 

  1162.     @pyqtSlot()

  1163.     def slot_jackAppAdd(self):

  1164.         data = self.showAddJackAppDialog()

  1165. 

  1166.         if data is None:

  1167.             return

  1168. 

  1169.         filename, name, label = data

  1170. 

  1171.         if not filename:

  1172.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1173.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1174.             return

  1175. 

  1176.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1177.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1178.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1179. 

  1180.     # --------------------------------------------------------------------------------------------------------

  1181.     # Plugins (macros)

  1182. 

  1183.     @pyqtSlot()

  1184.     def slot_pluginsEnable(self):

  1185.         if not self.host.is_engine_running():

  1186.             return

  1187. 

  1188.         for pitem in self.fPluginList:

  1189.             if pitem is None:

  1190.                 break

  1191. 

  1192.             pitem.getWidget().setActive(True, True, True)

  1193. 

  1194.     @pyqtSlot()

  1195.     def slot_pluginsDisable(self):

  1196.         if not self.host.is_engine_running():

  1197.             return

  1198. 

  1199.         for pitem in self.fPluginList:

  1200.             if pitem is None:

  1201.                 break

  1202. 

  1203.             pitem.getWidget().setActive(False, True, True)

  1204. 

  1205.     @pyqtSlot()

  1206.     def slot_pluginsVolume100(self):

  1207.         if not self.host.is_engine_running():

  1208.             return

  1209. 

  1210.         for pitem in self.fPluginList:

  1211.             if pitem is None:

  1212.                 break

  1213. 

  1214.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1215. 

  1216.     @pyqtSlot()

  1217.     def slot_pluginsMute(self):

  1218.         if not self.host.is_engine_running():

  1219.             return

  1220. 

  1221.         for pitem in self.fPluginList:

  1222.             if pitem is None:

  1223.                 break

  1224. 

  1225.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1226. 

  1227.     @pyqtSlot()

  1228.     def slot_pluginsWet100(self):

  1229.         if not self.host.is_engine_running():

  1230.             return

  1231. 

  1232.         for pitem in self.fPluginList:

  1233.             if pitem is None:

  1234.                 break

  1235. 

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

  1237. 

  1238.     @pyqtSlot()

  1239.     def slot_pluginsBypass(self):

  1240.         if not self.host.is_engine_running():

  1241.             return

  1242. 

  1243.         for pitem in self.fPluginList:

  1244.             if pitem is None:

  1245.                 break

  1246. 

  1247.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1248. 

  1249.     @pyqtSlot()

  1250.     def slot_pluginsCenter(self):

  1251.         if not self.host.is_engine_running():

  1252.             return

  1253. 

  1254.         for pitem in self.fPluginList:

  1255.             if pitem is None:

  1256.                 break

  1257. 

  1258.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1259.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1260.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1261. 

  1262.     @pyqtSlot()

  1263.     def slot_pluginsCompact(self):

  1264.         for pitem in self.fPluginList:

  1265.             if pitem is None:

  1266.                 break

  1267.             pitem.compact()

  1268. 

  1269.     @pyqtSlot()

  1270.     def slot_pluginsExpand(self):

  1271.         for pitem in self.fPluginList:

  1272.             if pitem is None:

  1273.                 break

  1274.             pitem.expand()

  1275. 

  1276.     # --------------------------------------------------------------------------------------------------------

  1277.     # Plugins (host callbacks)

  1278. 

  1279.     @pyqtSlot(int, str)

  1280.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1281.         if pluginId != self.fPluginCount:

  1282.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1283.             pitem = self.getPluginItem(pluginId)

  1284.             pitem.recreateWidget()

  1285.             return

  1286. 

  1287.         pitem = self.ui.listWidget.createItem(pluginId)

  1288.         self.fPluginList.append(pitem)

  1289.         self.fPluginCount += 1

  1290. 

  1291.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1292. 

  1293.     @pyqtSlot(int)

  1294.     def slot_handlePluginRemovedCallback(self, pluginId):

  1295.         patchcanvas.handlePluginRemoved(pluginId)

  1296. 

  1297.         if pluginId in self.fSelectedPlugins:

  1298.             self.clearSideStuff()

  1299. 

  1300.         if self.fPluginCount == 0:

  1301.             return

  1302. 

  1303.         pitem = self.getPluginItem(pluginId)

  1304. 

  1305.         self.fPluginCount -= 1

  1306.         self.fPluginList.pop(pluginId)

  1307.         self.ui.listWidget.takeItem(pluginId)

  1308. 

  1309.         if pitem is not None:

  1310.             pitem.close()

  1311.             del pitem

  1312. 

  1313.         if self.fPluginCount == 0:

  1314.             self.ui.act_plugin_remove_all.setEnabled(False)

  1315.             if self.fCurrentlyRemovingAllPlugins:

  1316.                 self.fCurrentlyRemovingAllPlugins = False

  1317.                 self.projectLoadingFinished()

  1318.             return

  1319. 

  1320.         # push all plugins 1 slot back

  1321.         for i in range(pluginId, self.fPluginCount):

  1322.             pitem = self.fPluginList[i]

  1323.             pitem.setPluginId(i)

  1324. 

  1325.         self.ui.act_plugin_remove_all.setEnabled(True)

  1326. 

  1327.     # --------------------------------------------------------------------------------------------------------

  1328.     # Canvas

  1329. 

  1330.     def clearSideStuff(self):

  1331.         if self.fWithCanvas:

  1332.             self.scene.clearSelection()

  1333. 

  1334.         self.fSelectedPlugins = []

  1335. 

  1336.         self.ui.keyboard.allNotesOff(False)

  1337.         self.ui.scrollArea.setEnabled(False)

  1338. 

  1339.         self.fPeaksCleared = True

  1340.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1341.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1342.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1343.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1344. 

  1345.     def setupCanvas(self):

  1346.         pOptions = patchcanvas.options_t()

  1347.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1348.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1349.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1350.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1351.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1352.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1353. 

  1354.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1355.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1356.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1357.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1358.         else:

  1359.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1360. 

  1361.         pFeatures = patchcanvas.features_t()

  1362.         pFeatures.group_info   = False

  1363.         pFeatures.group_rename = False

  1364.         pFeatures.port_info    = False

  1365.         pFeatures.port_rename  = False

  1366.         pFeatures.handle_group_pos = True

  1367. 

  1368.         patchcanvas.setOptions(pOptions)

  1369.         patchcanvas.setFeatures(pFeatures)

  1370.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1371. 

  1372.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1373. 

  1374.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1375.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1376.             self.fCanvasHeight = int(tryCanvasSize[1])

  1377.         else:

  1378.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1379.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1380. 

  1381.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1382.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1383.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1384. 

  1385.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1386.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1387. 

  1388.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1389.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1390. 

  1391.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1392.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1393.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1394. 

  1395.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1396.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1397. 

  1398.         else:

  1399.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1400. 

  1401.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1402.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1403.         else:

  1404.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1405. 

  1406.     def updateCanvasInitialPos(self):

  1407.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1408.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1409.         patchcanvas.setInitialPos(x, y)

  1410. 

  1411.     def updateMiniCanvasLater(self):

  1412.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1413. 

  1414.     # --------------------------------------------------------------------------------------------------------

  1415.     # Canvas (menu actions)

  1416. 

  1417.     @pyqtSlot()

  1418.     def slot_canvasShowInternal(self):

  1419.         self.fExternalPatchbay = False

  1420.         self.ui.act_canvas_show_internal.blockSignals(True)

  1421.         self.ui.act_canvas_show_external.blockSignals(True)

  1422.         self.ui.act_canvas_show_internal.setChecked(True)

  1423.         self.ui.act_canvas_show_external.setChecked(False)

  1424.         self.ui.act_canvas_show_internal.blockSignals(False)

  1425.         self.ui.act_canvas_show_external.blockSignals(False)

  1426.         self.slot_canvasRefresh()

  1427. 

  1428.     @pyqtSlot()

  1429.     def slot_canvasShowExternal(self):

  1430.         self.fExternalPatchbay = True

  1431.         self.ui.act_canvas_show_internal.blockSignals(True)

  1432.         self.ui.act_canvas_show_external.blockSignals(True)

  1433.         self.ui.act_canvas_show_internal.setChecked(False)

  1434.         self.ui.act_canvas_show_external.setChecked(True)

  1435.         self.ui.act_canvas_show_internal.blockSignals(False)

  1436.         self.ui.act_canvas_show_external.blockSignals(False)

  1437.         self.slot_canvasRefresh()

  1438. 

  1439.     @pyqtSlot()

  1440.     def slot_canvasArrange(self):

  1441.         patchcanvas.arrange()

  1442. 

  1443.     @pyqtSlot()

  1444.     def slot_canvasRefresh(self):

  1445.         patchcanvas.clear()

  1446. 

  1447.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1448.             return

  1449. 

  1450.         if self.host.is_engine_running():

  1451.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1452. 

  1453.         self.updateMiniCanvasLater()

  1454. 

  1455.     @pyqtSlot()

  1456.     def slot_canvasZoomFit(self):

  1457.         self.scene.zoom_fit()

  1458. 

  1459.     @pyqtSlot()

  1460.     def slot_canvasZoomIn(self):

  1461.         self.scene.zoom_in()

  1462. 

  1463.     @pyqtSlot()

  1464.     def slot_canvasZoomOut(self):

  1465.         self.scene.zoom_out()

  1466. 

  1467.     @pyqtSlot()

  1468.     def slot_canvasZoomReset(self):

  1469.         self.scene.zoom_reset()

  1470. 

  1471.     @pyqtSlot()

  1472.     def slot_canvasSaveImage(self):

  1473.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1474. 

  1475.         # FIXME use ok value, test if it works as expected

  1476.         if not newPath:

  1477.             return

  1478. 

  1479.         self.scene.clearSelection()

  1480. 

  1481.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1482.             imgFormat = "JPG"

  1483.         elif newPath.lower().endswith((".png",)):

  1484.             imgFormat = "PNG"

  1485.         else:

  1486.             # File-dialog may not auto-add the extension

  1487.             imgFormat = "PNG"

  1488.             newPath  += ".png"

  1489. 

  1490.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1491.         painter = QPainter(self.fExportImage)

  1492.         painter.save()

  1493.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1494.         painter.setRenderHint(QPainter.TextAntialiasing)

  1495.         self.scene.render(painter)

  1496.         self.fExportImage.save(newPath, imgFormat, 100)

  1497.         painter.restore()

  1498. 

  1499.     # --------------------------------------------------------------------------------------------------------

  1500.     # Canvas (canvas callbacks)

  1501. 

  1502.     @pyqtSlot(int, int, QPointF)

  1503.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1504.         self.updateMiniCanvasLater()

  1505. 

  1506.     @pyqtSlot()

  1507.     def slot_canvasSelectionChanged(self):

  1508.         self.updateMiniCanvasLater()

  1509. 

  1510.     @pyqtSlot(float)

  1511.     def slot_canvasScaleChanged(self, scale):

  1512.         self.ui.miniCanvasPreview.setViewScale(scale)

  1513. 

  1514.     @pyqtSlot(list)

  1515.     def slot_canvasPluginSelected(self, pluginList):

  1516.         self.ui.keyboard.allNotesOff(False)

  1517.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1518.         self.fSelectedPlugins = pluginList

  1519. 

  1520.     # --------------------------------------------------------------------------------------------------------

  1521.     # Canvas (host callbacks)

  1522. 

  1523.     @pyqtSlot(int, int, int, str)

  1524.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1525.         pcSplit = patchcanvas.SPLIT_UNDEF

  1526.         pcIcon  = patchcanvas.ICON_APPLICATION

  1527. 

  1528.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1529.             pcIcon = patchcanvas.ICON_PLUGIN

  1530.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1531.             pcIcon = patchcanvas.ICON_HARDWARE

  1532.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1533.             pass

  1534.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1535.             pcIcon = patchcanvas.ICON_DISTRHO

  1536.         elif clientIcon == PATCHBAY_ICON_FILE:

  1537.             pcIcon = patchcanvas.ICON_FILE

  1538. 

  1539.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1540. 

  1541.         self.updateMiniCanvasLater()

  1542. 

  1543.         if pluginId < 0:

  1544.             return

  1545.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1546.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1547.             return

  1548. 

  1549.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1550.             hasCustomUI = False

  1551.             hasInlineDisplay = False

  1552.         else:

  1553.             hints = self.host.get_plugin_info(pluginId)['hints']

  1554.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1555.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1556. 

  1557.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1558. 

  1559.     @pyqtSlot(int)

  1560.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1561.         patchcanvas.removeGroup(clientId)

  1562.         self.updateMiniCanvasLater()

  1563. 

  1564.     @pyqtSlot(int, str)

  1565.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1566.         patchcanvas.renameGroup(clientId, newClientName)

  1567.         self.updateMiniCanvasLater()

  1568. 

  1569.     @pyqtSlot(int, int, int)

  1570.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1571.         pcIcon = patchcanvas.ICON_APPLICATION

  1572. 

  1573.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1574.             pcIcon = patchcanvas.ICON_PLUGIN

  1575.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1576.             pcIcon = patchcanvas.ICON_HARDWARE

  1577.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1578.             pass

  1579.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1580.             pcIcon = patchcanvas.ICON_DISTRHO

  1581.         elif clientIcon == PATCHBAY_ICON_FILE:

  1582.             pcIcon = patchcanvas.ICON_FILE

  1583. 

  1584.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1585.         self.updateMiniCanvasLater()

  1586. 

  1587.         if pluginId < 0:

  1588.             return

  1589.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1590.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1591.             return

  1592. 

  1593.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1594.             hasCustomUI = False

  1595.             hasInlineDisplay = False

  1596.         else:

  1597.             hints = self.host.get_plugin_info(pluginId)['hints']

  1598.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1599.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1600. 

  1601.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1602. 

  1603.     @pyqtSlot(int, int, int, int, str)

  1604.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1605.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1606.             portMode = patchcanvas.PORT_MODE_INPUT

  1607.         else:

  1608.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1609. 

  1610.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1611.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1612.             isAlternate = False

  1613.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1614.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1615.             isAlternate = True

  1616.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1617.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1618.             isAlternate = False

  1619.         else:

  1620.             portType    = patchcanvas.PORT_TYPE_NULL

  1621.             isAlternate = False

  1622. 

  1623.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1624.         self.updateMiniCanvasLater()

  1625. 

  1626.     @pyqtSlot(int, int)

  1627.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1628.         patchcanvas.removePort(groupId, portId)

  1629.         self.updateMiniCanvasLater()

  1630. 

  1631.     @pyqtSlot(int, int, int, int, str)

  1632.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1633.         patchcanvas.renamePort(groupId, portId, newPortName)

  1634.         self.updateMiniCanvasLater()

  1635. 

  1636.     @pyqtSlot(int, int, int, str)

  1637.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1638.         # TODO

  1639.         pass

  1640. 

  1641.     @pyqtSlot(int, int)

  1642.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1643.         # TODO

  1644.         pass

  1645. 

  1646.     @pyqtSlot(int, int, int, str)

  1647.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1648.         # TODO

  1649.         pass

  1650. 

  1651.     @pyqtSlot(int, int, int, int, int)

  1652.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1653.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1654.         self.updateMiniCanvasLater()

  1655. 

  1656.     @pyqtSlot(int, int, int)

  1657.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1658.         patchcanvas.disconnectPorts(connectionId)

  1659.         self.updateMiniCanvasLater()

  1660. 

  1661.     # --------------------------------------------------------------------------------------------------------

  1662.     # Settings

  1663. 

  1664.     def saveSettings(self):

  1665.         settings = QSettings()

  1666. 

  1667.         settings.setValue("Geometry", self.saveGeometry())

  1668.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1669. 

  1670.         if not self.host.isControl:

  1671.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1672. 

  1673.         diskFolders = []

  1674. 

  1675.         for i in range(self.ui.cb_disk.count()):

  1676.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1677. 

  1678.         settings.setValue("DiskFolders", diskFolders)

  1679.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1680. 

  1681.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1682.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1683.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1684.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1685. 

  1686.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1687.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1688. 

  1689.         return settings

  1690. 

  1691.     def loadSettings(self, firstTime):

  1692.         settings = QSettings()

  1693. 

  1694.         if firstTime:

  1695.             self.restoreGeometry(settings.value("Geometry", b""))

  1696. 

  1697.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1698.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1699.             self.ui.toolBar.setEnabled(showToolbar)

  1700.             self.ui.toolBar.setVisible(showToolbar)

  1701. 

  1702.             #if settings.contains("SplitterState"):

  1703.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1704.             #else:

  1705.                 #self.ui.splitter.setSizes([210, 99999])

  1706. 

  1707.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1708.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1709.             self.slot_showSidePanel(showSidePanel)

  1710. 

  1711.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1712. 

  1713.             self.ui.cb_disk.setItemData(0, HOME)

  1714. 

  1715.             for i in range(len(diskFolders)):

  1716.                 if i == 0: continue

  1717.                 folder = diskFolders[i]

  1718.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1719. 

  1720.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1721.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1722. 

  1723.             showMeters = settings.value("ShowMeters", True, type=bool)

  1724.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1725.             self.ui.peak_in.setVisible(showMeters)

  1726.             self.ui.peak_out.setVisible(showMeters)

  1727. 

  1728.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1729.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1730.             self.ui.scrollArea.setVisible(showKeyboard)

  1731. 

  1732.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1733. 

  1734.         # TODO - complete this

  1735. 

  1736.         self.fSavedSettings = {

  1737.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1738.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1739.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1740.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1741.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1742.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1743.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1744.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1745.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1746.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1747.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1748.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1749.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1750.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1751.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     type=bool),

  1752.             CARLA_KEY_CANVAS_INLINE_DISPLAYS:   settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS,   CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS,   type=bool),

  1753.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1754.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1755.         }

  1756. 

  1757.         settings2 = QSettings("falkTX", "Carla2")

  1758. 

  1759.         if self.host.experimental:

  1760.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1761.             self.ui.act_plugin_add_jack.setVisible(visible)

  1762.         else:

  1763.             self.ui.act_plugin_add_jack.setVisible(False)

  1764. 

  1765.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1766. 

  1767.         setEngineSettings(self.host)

  1768.         self.restartTimersIfNeeded()

  1769. 

  1770.         return settings

  1771. 

  1772.     # --------------------------------------------------------------------------------------------------------

  1773.     # Settings (helpers)

  1774. 

  1775.     def enableTransport(self, enabled):

  1776.         self.ui.group_transport_controls.setEnabled(enabled)

  1777.         self.ui.group_transport_settings.setEnabled(enabled)

  1778. 

  1779.     @pyqtSlot()

  1780.     def slot_restoreCanvasScrollbarValues(self):

  1781.         settings = QSettings()

  1782.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1783.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1784. 

  1785.     # --------------------------------------------------------------------------------------------------------

  1786.     # Settings (menu actions)

  1787. 

  1788.     @pyqtSlot(bool)

  1789.     def slot_showSidePanel(self, yesNo):

  1790.         self.ui.dockWidget.setEnabled(yesNo)

  1791.         self.ui.dockWidget.setVisible(yesNo)

  1792. 

  1793.     @pyqtSlot(bool)

  1794.     def slot_showToolbar(self, yesNo):

  1795.         self.ui.toolBar.setEnabled(yesNo)

  1796.         self.ui.toolBar.setVisible(yesNo)

  1797. 

  1798.     @pyqtSlot(bool)

  1799.     def slot_showCanvasMeters(self, yesNo):

  1800.         self.ui.peak_in.setVisible(yesNo)

  1801.         self.ui.peak_out.setVisible(yesNo)

  1802.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1803. 

  1804.     @pyqtSlot(bool)

  1805.     def slot_showCanvasKeyboard(self, yesNo):

  1806.         self.ui.scrollArea.setVisible(yesNo)

  1807.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1808. 

  1809.     @pyqtSlot()

  1810.     def slot_configureCarla(self):

  1811.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1812.         if not dialog.exec_():

  1813.             return

  1814. 

  1815.         self.loadSettings(False)

  1816. 

  1817.         patchcanvas.clear()

  1818. 

  1819.         self.setupCanvas()

  1820.         self.slot_miniCanvasCheckAll()

  1821. 

  1822.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1823.             pass

  1824.         elif self.host.is_engine_running():

  1825.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1826. 

  1827.     # --------------------------------------------------------------------------------------------------------

  1828.     # About (menu actions)

  1829. 

  1830.     @pyqtSlot()

  1831.     def slot_aboutCarla(self):

  1832.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1833. 

  1834.     @pyqtSlot()

  1835.     def slot_aboutJuce(self):

  1836.         JuceAboutW(self.fParentOrSelf).exec_()

  1837. 

  1838.     @pyqtSlot()

  1839.     def slot_aboutQt(self):

  1840.         QApplication.instance().aboutQt()

  1841. 

  1842.     # --------------------------------------------------------------------------------------------------------

  1843.     # Disk (menu actions)

  1844. 

  1845.     @pyqtSlot(int)

  1846.     def slot_diskFolderChanged(self, index):

  1847.         if index < 0:

  1848.             return

  1849.         elif index == 0:

  1850.             filename = HOME

  1851.             self.ui.b_disk_remove.setEnabled(False)

  1852.         else:

  1853.             filename = self.ui.cb_disk.itemData(index)

  1854.             self.ui.b_disk_remove.setEnabled(True)

  1855. 

  1856.         self.fDirModel.setRootPath(filename)

  1857.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1858. 

  1859.     @pyqtSlot()

  1860.     def slot_diskFolderAdd(self):

  1861.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1862. 

  1863.         if newPath:

  1864.             if newPath[-1] == os.sep:

  1865.                 newPath = newPath[:-1]

  1866.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1867.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1868.             self.ui.b_disk_remove.setEnabled(True)

  1869. 

  1870.     @pyqtSlot()

  1871.     def slot_diskFolderRemove(self):

  1872.         index = self.ui.cb_disk.currentIndex()

  1873. 

  1874.         if index <= 0:

  1875.             return

  1876. 

  1877.         self.ui.cb_disk.removeItem(index)

  1878. 

  1879.         if self.ui.cb_disk.currentIndex() == 0:

  1880.             self.ui.b_disk_remove.setEnabled(False)

  1881. 

  1882.     @pyqtSlot(QModelIndex)

  1883.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1884.         filename = self.fDirModel.filePath(modelIndex)

  1885. 

  1886.         if not self.ui.listWidget.isDragUrlValid(filename):

  1887.             return

  1888. 

  1889.         if not self.host.load_file(filename):

  1890.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1891.                              self.tr("Failed to load file"),

  1892.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1893. 

  1894.     # --------------------------------------------------------------------------------------------------------

  1895.     # Transport

  1896. 

  1897.     def refreshTransport(self, forced = False):

  1898.         if not self.ui.l_transport_time.isVisible():

  1899.             return

  1900.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1901.             return

  1902. 

  1903.         timeInfo = self.host.get_transport_info()

  1904.         playing  = timeInfo['playing']

  1905.         frame    = timeInfo['frame']

  1906.         bpm      = timeInfo['bpm']

  1907. 

  1908.         if playing != self.fLastTransportState or forced:

  1909.             if playing:

  1910.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1911.                 self.ui.b_transport_play.setChecked(True)

  1912.                 self.ui.b_transport_play.setIcon(icon)

  1913.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1914.             else:

  1915.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1916.                 self.ui.b_transport_play.setChecked(False)

  1917.                 self.ui.b_transport_play.setIcon(icon)

  1918.                 #self.ui.b_play.setText(self.tr("&Play"))

  1919. 

  1920.             self.fLastTransportState = playing

  1921. 

  1922.         if frame != self.fLastTransportFrame or forced:

  1923.             self.fLastTransportFrame = frame

  1924. 

  1925.             time = frame / self.fSampleRate

  1926.             secs =  time % 60

  1927.             mins = (time / 60) % 60

  1928.             hrs  = (time / 3600) % 60

  1929.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1930. 

  1931.             frame1 =  frame % 1000

  1932.             frame2 = (frame / 1000) % 1000

  1933.             frame3 = (frame / 1000000) % 1000

  1934.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1935. 

  1936.             bar  = timeInfo['bar']

  1937.             beat = timeInfo['beat']

  1938.             tick = timeInfo['tick']

  1939.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1940. 

  1941.         if bpm != self.fLastTransportBPM or forced:

  1942.             self.fLastTransportBPM = bpm

  1943. 

  1944.             if bpm > 0.0:

  1945.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1946.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1947.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1948.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1949.             else:

  1950.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1951. 

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

  1953.     # Transport (menu actions)

  1954. 

  1955.     @pyqtSlot(bool)

  1956.     def slot_transportPlayPause(self, toggled):

  1957.         if self.host.isPlugin or not self.host.is_engine_running():

  1958.             return

  1959. 

  1960.         if toggled:

  1961.             self.host.transport_play()

  1962.         else:

  1963.             self.host.transport_pause()

  1964. 

  1965.         self.refreshTransport()

  1966. 

  1967.     @pyqtSlot()

  1968.     def slot_transportStop(self):

  1969.         if self.host.isPlugin or not self.host.is_engine_running():

  1970.             return

  1971. 

  1972.         self.host.transport_pause()

  1973.         self.host.transport_relocate(0)

  1974. 

  1975.         self.refreshTransport()

  1976. 

  1977.     @pyqtSlot()

  1978.     def slot_transportBackwards(self):

  1979.         if self.host.isPlugin or not self.host.is_engine_running():

  1980.             return

  1981. 

  1982.         newFrame = self.host.get_current_transport_frame() - 100000

  1983. 

  1984.         if newFrame < 0:

  1985.             newFrame = 0

  1986. 

  1987.         self.host.transport_relocate(newFrame)

  1988. 

  1989.     @pyqtSlot(float)

  1990.     def slot_transportBpmChanged(self, newValue):

  1991.         self.host.transport_bpm(newValue)

  1992. 

  1993.     @pyqtSlot()

  1994.     def slot_transportForwards(self):

  1995.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1996.             return

  1997. 

  1998.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1999.         self.host.transport_relocate(newFrame)

  2000. 

  2001.     @pyqtSlot(bool)

  2002.     def slot_transportJackEnabled(self, clicked):

  2003.         if not self.host.is_engine_running():

  2004.             return

  2005.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2006.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2007.                                     self.host.transportMode,

  2008.                                     self.host.transportExtra)

  2009. 

  2010.     @pyqtSlot(bool)

  2011.     def slot_transportLinkEnabled(self, clicked):

  2012.         if not self.host.is_engine_running():

  2013.             return

  2014.         extra = ":link:" if clicked else ""

  2015.         self.host.transportExtra = extra

  2016.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2017.                                     self.host.transportMode,

  2018.                                     self.host.transportExtra)

  2019. 

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

  2021.     # Other

  2022. 

  2023.     @pyqtSlot(bool)

  2024.     def slot_xrunClear(self):

  2025.         self.host.clear_engine_xruns()

  2026. 

  2027.     # --------------------------------------------------------------------------------------------------------

  2028.     # Canvas scrollbars

  2029. 

  2030.     @pyqtSlot(int)

  2031.     def slot_horizontalScrollBarChanged(self, value):

  2032.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2033.         if maximum == 0:

  2034.             xp = 0

  2035.         else:

  2036.             xp = float(value) / maximum

  2037.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2038.         self.updateCanvasInitialPos()

  2039. 

  2040.     @pyqtSlot(int)

  2041.     def slot_verticalScrollBarChanged(self, value):

  2042.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2043.         if maximum == 0:

  2044.             yp = 0

  2045.         else:

  2046.             yp = float(value) / maximum

  2047.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2048.         self.updateCanvasInitialPos()

  2049. 

  2050.     # --------------------------------------------------------------------------------------------------------

  2051.     # Canvas keyboard

  2052. 

  2053.     @pyqtSlot(int)

  2054.     def slot_noteOn(self, note):

  2055.         for pluginId in self.fSelectedPlugins:

  2056.             self.host.send_midi_note(pluginId, 0, note, 100)

  2057. 

  2058.             pedit = self.getPluginEditDialog(pluginId)

  2059.             pedit.noteOn(0, note, 100)

  2060. 

  2061.     @pyqtSlot(int)

  2062.     def slot_noteOff(self, note):

  2063.         for pluginId in self.fSelectedPlugins:

  2064.             self.host.send_midi_note(pluginId, 0, note, 0)

  2065. 

  2066.             pedit = self.getPluginEditDialog(pluginId)

  2067.             pedit.noteOff(0, note)

  2068. 

  2069.     # --------------------------------------------------------------------------------------------------------

  2070.     # Canvas keyboard (host callbacks)

  2071. 

  2072.     @pyqtSlot(int, int, int, int)

  2073.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2074.         if pluginId in self.fSelectedPlugins:

  2075.             self.ui.keyboard.sendNoteOn(note, False)

  2076. 

  2077.     @pyqtSlot(int, int, int)

  2078.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2079.         if pluginId in self.fSelectedPlugins:

  2080.             self.ui.keyboard.sendNoteOff(note, False)

  2081. 

  2082.     # --------------------------------------------------------------------------------------------------------

  2083. 

  2084.     @pyqtSlot(int)

  2085.     def slot_handleUpdateCallback(self, pluginId):

  2086.         pitem = self.getPluginItem(pluginId)

  2087. 

  2088.         if pitem is None:

  2089.             return

  2090. 

  2091.         wasCompacted = pitem.isCompacted()

  2092.         isCompacted  = wasCompacted

  2093. 

  2094.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2095.         if not check:

  2096.             return

  2097.         isCompacted = bool(check == "true")

  2098. 

  2099.         if wasCompacted == isCompacted:

  2100.             return

  2101. 

  2102.         pitem.recreateWidget(True)

  2103. 

  2104.     # --------------------------------------------------------------------------------------------------------

  2105.     # MiniCanvas stuff

  2106. 

  2107.     @pyqtSlot()

  2108.     def slot_miniCanvasCheckAll(self):

  2109.         self.slot_miniCanvasCheckSize()

  2110.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2111.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2112. 

  2113.     @pyqtSlot()

  2114.     def slot_miniCanvasCheckSize(self):

  2115.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2116.             return

  2117. 

  2118.         currentIndex = self.ui.tabWidget.currentIndex()

  2119. 

  2120.         if currentIndex == 1:

  2121.             width  = self.ui.graphicsView.width()

  2122.             height = self.ui.graphicsView.height()

  2123.         else:

  2124.             self.ui.tabWidget.blockSignals(True)

  2125.             self.ui.tabWidget.setCurrentIndex(1)

  2126.             width  = self.ui.graphicsView.width()

  2127.             height = self.ui.graphicsView.height()

  2128.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2129.             self.ui.tabWidget.blockSignals(False)

  2130. 

  2131.         self.scene.updateLimits()

  2132. 

  2133.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2134. 

  2135.     @pyqtSlot(float, float)

  2136.     def slot_miniCanvasMoved(self, xp, yp):

  2137.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2138.         vsb = self.ui.graphicsView.verticalScrollBar()

  2139.         hsb.setValue(xp * hsb.maximum())

  2140.         vsb.setValue(yp * vsb.maximum())

  2141.         self.updateCanvasInitialPos()

  2142. 

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

  2144.     # Timers

  2145. 

  2146.     def startTimers(self):

  2147.         if self.fIdleTimerFast == 0:

  2148.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2149. 

  2150.         if self.fIdleTimerSlow == 0:

  2151.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2152. 

  2153.     def restartTimersIfNeeded(self):

  2154.         if self.fIdleTimerFast != 0:

  2155.             self.killTimer(self.fIdleTimerFast)

  2156.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2157. 

  2158.         if self.fIdleTimerSlow != 0:

  2159.             self.killTimer(self.fIdleTimerSlow)

  2160.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2161. 

  2162.     def killTimers(self):

  2163.         if self.fIdleTimerFast != 0:

  2164.             self.killTimer(self.fIdleTimerFast)

  2165.             self.fIdleTimerFast = 0

  2166. 

  2167.         if self.fIdleTimerSlow != 0:

  2168.             self.killTimer(self.fIdleTimerSlow)

  2169.             self.fIdleTimerSlow = 0

  2170. 

  2171.     # --------------------------------------------------------------------------------------------------------

  2172.     # Misc

  2173. 

  2174.     @pyqtSlot(int)

  2175.     def slot_tabChanged(self, index):

  2176.         if index != 1:

  2177.             return

  2178. 

  2179.         self.ui.graphicsView.setFocus()

  2180. 

  2181.     @pyqtSlot(int)

  2182.     def slot_handleReloadAllCallback(self, pluginId):

  2183.         if pluginId >= self.fPluginCount:

  2184.             return

  2185. 

  2186.         pitem = self.fPluginList[pluginId]

  2187.         if pitem is None:

  2188.             return

  2189. 

  2190.         pitem.recreateWidget()

  2191. 

  2192.     # --------------------------------------------------------------------------------------------------------

  2193. 

  2194.     @pyqtSlot(int, int, str)

  2195.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2196.         if opcode == NSM_CALLBACK_INIT:

  2197.             return

  2198. 

  2199.         # Error

  2200.         elif opcode == NSM_CALLBACK_ERROR:

  2201.             pass

  2202. 

  2203.         # Reply

  2204.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2205.             self.fFirstEngineInit    = False

  2206.             self.fSessionManagerName = valueStr

  2207.             self.setProperWindowTitle()

  2208. 

  2209.         # Open

  2210.         elif opcode == NSM_CALLBACK_OPEN:

  2211.             self.fClientName      = os.path.basename(valueStr)

  2212.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2213.             self.setProperWindowTitle()

  2214. 

  2215.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2216.             self.slot_engineStop(True)

  2217.             return

  2218. 

  2219.         # Save

  2220.         elif opcode == NSM_CALLBACK_SAVE:

  2221.             self.saveProjectNow()

  2222. 

  2223.         # Session is Loaded

  2224.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2225.             pass

  2226. 

  2227.         # Show Optional Gui

  2228.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2229.             self.show()

  2230. 

  2231.         # Hide Optional Gui

  2232.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2233.             self.hide()

  2234. 

  2235.         self.host.nsm_ready(opcode)

  2236. 

  2237.     # --------------------------------------------------------------------------------------------------------

  2238. 

  2239.     def fixLogText(self, text):

  2240.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2241. 

  2242.     @pyqtSlot(int, int, int, int, float, str)

  2243.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2244.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2245. 

  2246.     @pyqtSlot(str)

  2247.     def slot_handleInfoCallback(self, info):

  2248.         QMessageBox.information(self, "Information", info)

  2249. 

  2250.     @pyqtSlot(str)

  2251.     def slot_handleErrorCallback(self, error):

  2252.         QMessageBox.critical(self, "Error", error)

  2253. 

  2254.     @pyqtSlot()

  2255.     def slot_handleQuitCallback(self):

  2256.         self.fIsProjectLoading = False

  2257.         self.killTimers()

  2258.         self.removeAllPlugins()

  2259.         self.projectLoadingFinished()

  2260. 

  2261.     @pyqtSlot(int)

  2262.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2263.         # FIXME

  2264.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2265.             patchcanvas.redrawPluginGroup(pluginId)

  2266. 

  2267.     # --------------------------------------------------------------------------------------------------------

  2268. 

  2269.     @pyqtSlot()

  2270.     def slot_handleSIGUSR1(self):

  2271.         print("Got SIGUSR1 -> Saving project now")

  2272.         self.slot_fileSave()

  2273. 

  2274.     @pyqtSlot()

  2275.     def slot_handleSIGTERM(self):

  2276.         print("Got SIGTERM -> Closing now")

  2277.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2278.         self.slot_engineStop(True)

  2279. 

  2280.     # --------------------------------------------------------------------------------------------------------

  2281.     # Internal stuff

  2282. 

  2283.     def getExtraPtr(self, plugin):

  2284.         ptype = plugin['type']

  2285. 

  2286.         if ptype == PLUGIN_LADSPA:

  2287.             uniqueId = plugin['uniqueId']

  2288. 

  2289.             self.maybeLoadRDFs()

  2290. 

  2291.             for rdfItem in self.fLadspaRdfList:

  2292.                 if rdfItem.UniqueID == uniqueId:

  2293.                     return pointer(rdfItem)

  2294. 

  2295.         elif ptype == PLUGIN_SF2:

  2296.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2297.                 return self._true

  2298. 

  2299.         return None

  2300. 

  2301.     def maybeLoadRDFs(self):

  2302.         if not self.fLadspaRdfNeedsUpdate:

  2303.             return

  2304. 

  2305.         self.fLadspaRdfNeedsUpdate = False

  2306.         self.fLadspaRdfList = []

  2307. 

  2308.         if not haveLRDF:

  2309.             return

  2310. 

  2311.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2312.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2313. 

  2314.         if os.path.exists(frLadspaFile):

  2315.             frLadspa = open(frLadspaFile, 'r')

  2316. 

  2317.             try:

  2318.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2319.             except:

  2320.                 pass

  2321. 

  2322.             frLadspa.close()

  2323. 

  2324.     # --------------------------------------------------------------------------------------------------------

  2325. 

  2326.     def getPluginCount(self):

  2327.         return self.fPluginCount

  2328. 

  2329.     def getPluginItem(self, pluginId):

  2330.         if pluginId >= self.fPluginCount:

  2331.             return None

  2332. 

  2333.         pitem = self.fPluginList[pluginId]

  2334.         if pitem is None:

  2335.             return None

  2336.         #if False:

  2337.             #return CarlaRackItem(self, 0, False)

  2338. 

  2339.         return pitem

  2340. 

  2341.     def getPluginEditDialog(self, pluginId):

  2342.         if pluginId >= self.fPluginCount:

  2343.             return None

  2344. 

  2345.         pitem = self.fPluginList[pluginId]

  2346.         if pitem is None:

  2347.             return None

  2348.         if False:

  2349.             return PluginEdit(self, self.host, 0)

  2350. 

  2351.         return pitem.getEditDialog()

  2352. 

  2353.     def getPluginSlotWidget(self, pluginId):

  2354.         if pluginId >= self.fPluginCount:

  2355.             return None

  2356. 

  2357.         pitem = self.fPluginList[pluginId]

  2358.         if pitem is None:

  2359.             return None

  2360.         #if False:

  2361.             #return AbstractPluginSlot()

  2362. 

  2363.         return pitem.getWidget()

  2364. 

  2365.     # --------------------------------------------------------------------------------------------------------

  2366. 

  2367.     def waitForPendingEvents(self):

  2368.         pass

  2369. 

  2370.     # --------------------------------------------------------------------------------------------------------

  2371.     # show/hide event

  2372. 

  2373.     def showEvent(self, event):

  2374.         self.getAndRefreshRuntimeInfo()

  2375.         self.refreshTransport(True)

  2376.         QMainWindow.showEvent(self, event)

  2377. 

  2378.         if QT_VERSION >= 0x50600:

  2379.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2380. 

  2381.         # set our gui as parent for all plugins UIs

  2382.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2383.             if MACOS:

  2384.                 nsViewPtr = int(self.winId())

  2385.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2386.             else:

  2387.                 winIdStr = "%x" % int(self.winId())

  2388.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2389. 

  2390.     def hideEvent(self, event):

  2391.         # disable parent

  2392.         if not (self.host.isControl or self.host.isPlugin):

  2393.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2394. 

  2395.         QMainWindow.hideEvent(self, event)

  2396. 

  2397.     # --------------------------------------------------------------------------------------------------------

  2398.     # resize event

  2399. 

  2400.     def resizeEvent(self, event):

  2401.         QMainWindow.resizeEvent(self, event)

  2402. 

  2403.         if self.fWithCanvas:

  2404.             self.slot_miniCanvasCheckSize()

  2405. 

  2406.     # --------------------------------------------------------------------------------------------------------

  2407.     # timer event

  2408. 

  2409.     def refreshRuntimeInfo(self, load, xruns):

  2410.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2411.         txt2 = "" if (xruns == 1) else "s"

  2412.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2413.         self.ui.pb_dsp_load.setValue(int(load))

  2414. 

  2415.     def getAndRefreshRuntimeInfo(self):

  2416.         if not self.ui.pb_dsp_load.isVisible():

  2417.             return

  2418.         if not self.host.is_engine_running():

  2419.             return

  2420.         info = self.host.get_runtime_engine_info()

  2421.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2422. 

  2423.     def idleFast(self):

  2424.         self.host.engine_idle()

  2425.         self.refreshTransport()

  2426. 

  2427.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2428.             return

  2429. 

  2430.         for pitem in self.fPluginList:

  2431.             if pitem is None:

  2432.                 break

  2433. 

  2434.             pitem.getWidget().idleFast()

  2435. 

  2436.         for pluginId in self.fSelectedPlugins:

  2437.             self.fPeaksCleared = False

  2438.             if self.ui.peak_in.isVisible():

  2439.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2440.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2441.             if self.ui.peak_out.isVisible():

  2442.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2443.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2444.             return

  2445. 

  2446.         if self.fPeaksCleared:

  2447.             return

  2448. 

  2449.         self.fPeaksCleared = True

  2450.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2451.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2452.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2453.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2454. 

  2455.     def idleSlow(self):

  2456.         self.getAndRefreshRuntimeInfo()

  2457. 

  2458.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2459.             return

  2460. 

  2461.         for pitem in self.fPluginList:

  2462.             if pitem is None:

  2463.                 break

  2464. 

  2465.             pitem.getWidget().idleSlow()

  2466. 

  2467.     def timerEvent(self, event):

  2468.         if event.timerId() == self.fIdleTimerFast:

  2469.             self.idleFast()

  2470. 

  2471.         elif event.timerId() == self.fIdleTimerSlow:

  2472.             self.idleSlow()

  2473. 

  2474.         QMainWindow.timerEvent(self, event)

  2475. 

  2476.     # --------------------------------------------------------------------------------------------------------

  2477.     # color/style change event

  2478. 

  2479.     def changeEvent(self, event):

  2480.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2481.             self.updateStyle()

  2482.         QWidget.changeEvent(self, event)

  2483. 

  2484.     def updateStyle(self):

  2485.         # Rack padding images setup

  2486.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2487.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2488. 

  2489.         min_value = 0.07

  2490. 

  2491.         if PYQT_VERSION >= 0x50600:

  2492.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2493.         else:

  2494.             value_fix = 1.5

  2495. 

  2496.         bg_color = self.ui.rack.palette().window().color()

  2497.         bg_value = 1.0 - bg_color.blackF()

  2498.         if bg_value != 0.0 and bg_value < min_value:

  2499.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2500.         else:

  2501.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2502. 

  2503.         painter = QPainter()

  2504.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2505. 

  2506.         painter.begin(rack_imgL)

  2507.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2508.         painter.setBrush(pad_color)

  2509.         painter.drawRect(fillRect)

  2510.         painter.end()

  2511.         rack_pixmapL = QPixmap(rack_imgL)

  2512.         self.imgL_palette = QPalette()

  2513.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2514.         self.ui.pad_left.setPalette(self.imgL_palette)

  2515.         self.ui.pad_left.setAutoFillBackground(True)

  2516. 

  2517.         painter.begin(rack_imgR)

  2518.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2519.         painter.setBrush(pad_color)

  2520.         painter.drawRect(fillRect)

  2521.         painter.end()

  2522.         rack_pixmapR = QPixmap(rack_imgR)

  2523.         self.imgR_palette = QPalette()

  2524.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2525.         self.ui.pad_right.setPalette(self.imgR_palette)

  2526.         self.ui.pad_right.setAutoFillBackground(True)

  2527. 

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

  2529.     # paint event

  2530. 

  2531.     #def paintEvent(self, event):

  2532.         #QMainWindow.paintEvent(self, event)

  2533. 

  2534.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2535.             #return

  2536. 

  2537.         #painter = QPainter(self)

  2538.         #painter.setBrush(QColor(36, 36, 36))

  2539.         #painter.setPen(QColor(62, 62, 62))

  2540.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2541. 

  2542.     # --------------------------------------------------------------------------------------------------------

  2543.     # close event

  2544. 

  2545.     def shouldIgnoreClose(self):

  2546.         if self.host.isControl or self.host.isPlugin:

  2547.             return False

  2548.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2549.             return False

  2550.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2551.             return QMessageBox.question(self, self.tr("Quit"),

  2552.                                               self.tr("Are you sure you want to quit Carla?"),

  2553.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2554.         return False

  2555. 

  2556.     def closeEvent(self, event):

  2557.         if self.shouldIgnoreClose():

  2558.             event.ignore()

  2559.             return

  2560. 

  2561.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2562.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2563.             self.fMacClosingHelper = False

  2564.             event.ignore()

  2565. 

  2566.             for i in reversed(range(self.fPluginCount)):

  2567.                 self.host.show_custom_ui(i, False)

  2568. 

  2569.             QTimer.singleShot(100, self.close)

  2570.             return

  2571. 

  2572.         self.killTimers()

  2573.         self.saveSettings()

  2574. 

  2575.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2576.             if not self.slot_engineStop(True):

  2577.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2578.                 event.ignore()

  2579.                 return

  2580. 

  2581.         QMainWindow.closeEvent(self, event)

  2582. 

  2583. # ------------------------------------------------------------------------------------------------

  2584. # Canvas callback

  2585. 

  2586. def canvasCallback(action, value1, value2, valueStr):

  2587.     host = gCarla.gui.host

  2588. 

  2589.     if action == patchcanvas.ACTION_GROUP_INFO:

  2590.         pass

  2591. 

  2592.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2593.         pass

  2594. 

  2595.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2596.         groupId = value1

  2597.         patchcanvas.splitGroup(groupId)

  2598.         gCarla.gui.updateMiniCanvasLater()

  2599. 

  2600.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2601.         groupId = value1

  2602.         patchcanvas.joinGroup(groupId)

  2603.         gCarla.gui.updateMiniCanvasLater()

  2604. 

  2605.     elif action == patchcanvas.ACTION_PORT_INFO:

  2606.         pass

  2607. 

  2608.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2609.         pass

  2610. 

  2611.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2612.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2613. 

  2614.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2615.             print("Connection failed:", host.get_last_error())

  2616. 

  2617.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2618.         connectionId = value1

  2619. 

  2620.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2621.             print("Disconnect failed:", host.get_last_error())

  2622. 

  2623.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2624.         pluginId = value1

  2625. 

  2626.         if not host.clone_plugin(pluginId):

  2627.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2628.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2629. 

  2630.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2631.         pluginId = value1

  2632.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2633. 

  2634.         if pwidget is not None:

  2635.             pwidget.showEditDialog()

  2636. 

  2637.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2638.         pluginId = value1

  2639.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2640. 

  2641.         if pwidget is not None:

  2642.             pwidget.showRenameDialog()

  2643. 

  2644.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2645.         pluginId = value1

  2646.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2647. 

  2648.         if pwidget is not None:

  2649.             pwidget.showReplaceDialog()

  2650. 

  2651.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2652.         pluginId = value1

  2653. 

  2654.         if not host.remove_plugin(pluginId):

  2655.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2656.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2657. 

  2658.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2659.         pluginId = value1

  2660.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2661. 

  2662.         if pwidget is not None:

  2663.             pwidget.showCustomUI()

  2664. 

  2665.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2666.         gCarla.gui.showPluginActionsMenu()

  2667. 

  2668.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2669.         # FIXME

  2670.         if gCarla.gui.fPluginCount == 0: return

  2671.         pluginId = value1

  2672.         width, height = [int(v) for v in valueStr.split(":")]

  2673.         return host.render_inline_display(pluginId, width, height)

  2674. 

  2675. # ------------------------------------------------------------------------------------------------------------

  2676. # Engine callback

  2677. 

  2678. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2679.     # kdevelop likes this :)

  2680.     if False: host = CarlaHostNull()

  2681. 

  2682.     valueStr = charPtrToString(valueStr)

  2683. 

  2684.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2685.         host.processMode   = value1

  2686.         host.transportMode = value2

  2687.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2688.         host.processMode   = value1

  2689.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2690.         host.transportMode  = value1

  2691.         host.transportExtra = valueStr

  2692. 

  2693.     if action == ENGINE_CALLBACK_DEBUG:

  2694.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2695.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2696.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2697.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2698.         host.PluginRemovedCallback.emit(pluginId)

  2699.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2700.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2701.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2702.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2703.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2704.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2705.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2706.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2707.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2708.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2709.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2710.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2711.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2712.         host.ProgramChangedCallback.emit(pluginId, value1)

  2713.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2714.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2715.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2716.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2717.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2718.         host.UiStateChangedCallback.emit(pluginId, value1)

  2719.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2720.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2721.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2722.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2723.     elif action == ENGINE_CALLBACK_UPDATE:

  2724.         host.UpdateCallback.emit(pluginId)

  2725.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2726.         host.ReloadInfoCallback.emit(pluginId)

  2727.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2728.         host.ReloadParametersCallback.emit(pluginId)

  2729.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2730.         host.ReloadProgramsCallback.emit(pluginId)

  2731.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2732.         host.ReloadAllCallback.emit(pluginId)

  2733.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2734.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2735.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2736.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2737.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2738.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2739.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2740.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2741.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2742.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2743.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2744.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2745.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2746.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2747.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2748.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2749.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2750.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2751.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2752.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2753.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2754.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2755.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2756.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2757.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2758.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2759.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2760.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2761.         host.EngineStoppedCallback.emit()

  2762.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2763.         host.ProcessModeChangedCallback.emit(value1)

  2764.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2765.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2766.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2767.         host.BufferSizeChangedCallback.emit(value1)

  2768.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2769.         host.SampleRateChangedCallback.emit(valuef)

  2770.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2771.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2772.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2773.         host.ProjectLoadFinishedCallback.emit()

  2774.     elif action == ENGINE_CALLBACK_NSM:

  2775.         host.NSMCallback.emit(value1, value2, valueStr)

  2776.     elif action == ENGINE_CALLBACK_IDLE:

  2777.         QApplication.processEvents()

  2778.     elif action == ENGINE_CALLBACK_INFO:

  2779.         host.InfoCallback.emit(valueStr)

  2780.     elif action == ENGINE_CALLBACK_ERROR:

  2781.         host.ErrorCallback.emit(valueStr)

  2782.     elif action == ENGINE_CALLBACK_QUIT:

  2783.         host.QuitCallback.emit()

  2784.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2785.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2786.     else:

  2787.         print("unhandled action", action)

  2788. 

  2789. # ------------------------------------------------------------------------------------------------------------

  2790. # File callback

  2791. 

  2792. def fileCallback(ptr, action, isDir, title, filter):

  2793.     title  = charPtrToString(title)

  2794.     filter = charPtrToString(filter)

  2795. 

  2796.     if action == FILE_CALLBACK_OPEN:

  2797.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2798.     elif action == FILE_CALLBACK_SAVE:

  2799.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2800.     else:

  2801.         ret, ok = ("", "")

  2802. 

  2803.     # FIXME use ok value, test if it works as expected

  2804.     if not ret:

  2805.         return None

  2806. 

  2807.     # FIXME

  2808.     global fileRet

  2809.     fileRet = c_char_p(ret.encode("utf-8"))

  2810.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2811.     return retval.contents.value

  2812. 

  2813. # ------------------------------------------------------------------------------------------------------------

  2814. # Init host

  2815. 

  2816. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2817.     pathBinaries, pathResources = getPaths(libPrefix)

  2818. 

  2819.     # --------------------------------------------------------------------------------------------------------

  2820.     # Check if we should open main lib as local or global

  2821. 

  2822.     settings = QSettings("falkTX", "Carla2")

  2823. 

  2824.     try:

  2825.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2826.     except:

  2827.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2828. 

  2829.     # --------------------------------------------------------------------------------------------------------

  2830.     # Fail if binary dir is not found

  2831. 

  2832.     if not os.path.exists(pathBinaries):

  2833.         if failError:

  2834.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2835.             sys.exit(1)

  2836.         return

  2837. 

  2838.     # --------------------------------------------------------------------------------------------------------

  2839.     # Set Carla library name

  2840. 

  2841.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2842.     libname   = os.path.join(pathBinaries, libname)

  2843.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2844. 

  2845.     # --------------------------------------------------------------------------------------------------------

  2846.     # Print info

  2847. 

  2848.     print("Carla %s started, status:" % VERSION)

  2849.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2850.     print("  Qt version:     %s" % QT_VERSION_STR)

  2851.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2852.     print("  Binary dir:     %s" % pathBinaries)

  2853.     print("  Resources dir:  %s" % pathResources)

  2854. 

  2855.     # --------------------------------------------------------------------------------------------------------

  2856.     # Init host

  2857. 

  2858.     if failError:

  2859.         # no try

  2860.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2861.     else:

  2862.         try:

  2863.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2864.         except:

  2865.             host = CarlaHostQtNull()

  2866. 

  2867.     host.isControl = isControl

  2868.     host.isPlugin  = isPlugin

  2869. 

  2870.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2871.     host.set_file_callback(fileCallback)

  2872. 

  2873.     # If it's a plugin the paths are already set

  2874.     if not isPlugin:

  2875.         host.pathBinaries  = pathBinaries

  2876.         host.pathResources = pathResources

  2877.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2878.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2879. 

  2880.         if not isControl:

  2881.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2882. 

  2883.     # --------------------------------------------------------------------------------------------------------

  2884.     # Init utils

  2885. 

  2886.     gCarla.utils = CarlaUtils(utilsname)

  2887.     gCarla.utils.set_process_name(os.path.basename(initName))

  2888. 

  2889.     try:

  2890.         sys.stdout.flush()

  2891.     except:

  2892.         pass

  2893. 

  2894.     sys.stdout = CarlaPrint(False)

  2895.     sys.stderr = CarlaPrint(True)

  2896.     sys.excepthook = sys_excepthook

  2897. 

  2898.     # --------------------------------------------------------------------------------------------------------

  2899.     # Done

  2900. 

  2901.     return host

  2902. 

  2903. # ------------------------------------------------------------------------------------------------------------

  2904. # Load host settings

  2905. 

  2906. def loadHostSettings(host):

  2907.     # kdevelop likes this :)

  2908.     if False: host = CarlaHostNull()

  2909. 

  2910.     settings = QSettings("falkTX", "Carla2")

  2911. 

  2912.     try:

  2913.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2914.     except:

  2915.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2916. 

  2917.     try:

  2918.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2919.     except:

  2920.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2921. 

  2922.     try:

  2923.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2924.     except:

  2925.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2926. 

  2927.     try:

  2928.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2929.     except:

  2930.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2931. 

  2932.     try:

  2933.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2934.     except:

  2935.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2936. 

  2937.     try:

  2938.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2939.     except:

  2940.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2941. 

  2942.     try:

  2943.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2944.     except:

  2945.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2946. 

  2947.     try:

  2948.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2949.     except:

  2950.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2951. 

  2952.     try:

  2953.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2954.     except:

  2955.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2956. 

  2957.     try:

  2958.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2959.     except:

  2960.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2961. 

  2962.     try:

  2963.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2964.     except:

  2965.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2966. 

  2967.     try:

  2968.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2969.     except:

  2970.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2971. 

  2972.     try:

  2973.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2974.     except:

  2975.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2976. 

  2977.     if host.isPlugin:

  2978.         return

  2979. 

  2980.     try:

  2981.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  2982.     except:

  2983.         host.transportExtra = ""

  2984. 

  2985.     # enums

  2986.     if host.audioDriverForced is None:

  2987.         try:

  2988.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2989.         except:

  2990.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2991. 

  2992.     if not host.processModeForced:

  2993.         try:

  2994.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2995.         except:

  2996.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2997. 

  2998.     host.nextProcessMode = host.processMode

  2999. 

  3000.     # --------------------------------------------------------------------------------------------------------

  3001.     # fix things if needed

  3002. 

  3003.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3004.         if LADISH_APP_NAME:

  3005.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3006.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3007. 

  3008.         else:

  3009.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3010. 

  3011.     if gCarla.nogui:

  3012.         host.showLogs = False

  3013. 

  3014.     # --------------------------------------------------------------------------------------------------------

  3015.     # run headless host now if nogui option enabled

  3016. 

  3017.     if gCarla.nogui:

  3018.         runHostWithoutUI(host)

  3019. 

  3020. # ------------------------------------------------------------------------------------------------------------

  3021. # Set host settings

  3022. 

  3023. def setHostSettings(host):

  3024.     # kdevelop likes this :)

  3025.     if False: host = CarlaHostNull()

  3026. 

  3027.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3028.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3029.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3030.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3031.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3032.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3033.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3034. 

  3035.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3036.         return

  3037. 

  3038.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3039.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3040.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3041. 

  3042. # ------------------------------------------------------------------------------------------------------------

  3043. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3044. 

  3045. def setEngineSettings(host):

  3046.     # kdevelop likes this :)

  3047.     if False: host = CarlaHostNull()

  3048. 

  3049.     # --------------------------------------------------------------------------------------------------------

  3050.     # do nothing if control

  3051. 

  3052.     if host.isControl:

  3053.         return "Control"

  3054. 

  3055.     # --------------------------------------------------------------------------------------------------------

  3056. 

  3057.     settings = QSettings("falkTX", "Carla2")

  3058. 

  3059.     # --------------------------------------------------------------------------------------------------------

  3060.     # main settings

  3061. 

  3062.     setHostSettings(host)

  3063. 

  3064.     # --------------------------------------------------------------------------------------------------------

  3065.     # plugin paths

  3066. 

  3067.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  3068.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  3069.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  3070.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  3071.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  3072.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  3073.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  3074. 

  3075.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3076.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3077.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3078.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3079.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3080.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3081.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3082. 

  3083.     # --------------------------------------------------------------------------------------------------------

  3084.     # don't continue if plugin

  3085. 

  3086.     if host.isPlugin:

  3087.         return "Plugin"

  3088. 

  3089.     # --------------------------------------------------------------------------------------------------------

  3090.     # osc settings

  3091. 

  3092.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3093. 

  3094.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3095.         portNumTCP = -1

  3096.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3097.         portNumTCP = 0

  3098.     else:

  3099.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3100. 

  3101.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3102.         portNumUDP = -1

  3103.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3104.         portNumUDP = 0

  3105.     else:

  3106.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3107. 

  3108.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3109.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3110.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3111. 

  3112.     # --------------------------------------------------------------------------------------------------------

  3113.     # wine settings

  3114. 

  3115.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3116.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3117.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3118.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3119.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3120.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3121. 

  3122.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3123.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3124.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3125.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3126.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3127.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3128. 

  3129.     # --------------------------------------------------------------------------------------------------------

  3130.     # driver and device settings

  3131. 

  3132.     # driver name

  3133.     if host.audioDriverForced is not None:

  3134.         audioDriver = host.audioDriverForced

  3135.     else:

  3136.         try:

  3137.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3138.         except:

  3139.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3140. 

  3141.     # driver options

  3142.     try:

  3143.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3144.     except:

  3145.         audioDevice = ""

  3146. 

  3147.     try:

  3148.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3149.     except:

  3150.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3151. 

  3152.     try:

  3153.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3154.     except:

  3155.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3156. 

  3157.     try:

  3158.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3159.     except:

  3160.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3161. 

  3162.     # Only setup audio things if engine is not running

  3163.     if not host.is_engine_running():

  3164.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3165. 

  3166.         if not audioDriver.startswith("JACK"):

  3167.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3168.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3169.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3170. 

  3171.     # --------------------------------------------------------------------------------------------------------

  3172.     # fix things if needed

  3173. 

  3174.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3175.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3176.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3177. 

  3178.     # --------------------------------------------------------------------------------------------------------

  3179.     # return selected driver name

  3180. 

  3181.     return audioDriver

  3182. 

  3183. # ------------------------------------------------------------------------------------------------------------

  3184. # Run Carla without showing UI

  3185. 

  3186. def runHostWithoutUI(host):

  3187.     # kdevelop likes this :)

  3188.     if False: host = CarlaHostNull()

  3189. 

  3190.     # --------------------------------------------------------------------------------------------------------

  3191.     # Some initial checks

  3192. 

  3193.     if not gCarla.nogui:

  3194.         return

  3195. 

  3196.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3197. 

  3198.     if not projectFile:

  3199.         print("Carla no-gui mode can only be used together with a project file.")

  3200.         sys.exit(1)

  3201. 

  3202.     # --------------------------------------------------------------------------------------------------------

  3203.     # Additional imports

  3204. 

  3205.     from time import sleep

  3206. 

  3207.     # --------------------------------------------------------------------------------------------------------

  3208.     # Init engine

  3209. 

  3210.     audioDriver = setEngineSettings(host)

  3211.     if not host.engine_init(audioDriver, "Carla"):

  3212.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3213.         sys.exit(1)

  3214. 

  3215.     if not host.load_project(projectFile):

  3216.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3217.         host.engine_close()

  3218.         sys.exit(1)

  3219. 

  3220.     # --------------------------------------------------------------------------------------------------------

  3221.     # Idle

  3222. 

  3223.     print("Carla ready!")

  3224. 

  3225.     while host.is_engine_running() and not gCarla.term:

  3226.         host.engine_idle()

  3227.         sleep(0.0333) # 30 Hz

  3228. 

  3229.     # --------------------------------------------------------------------------------------------------------

  3230.     # Stop

  3231. 

  3232.     host.engine_close()

  3233.     sys.exit(0)

  3234. 

  3235. # ------------------------------------------------------------------------------------------------------------