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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

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

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

  24. from PyQt5.Qt import PYQT_VERSION

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

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

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

  28. 

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

  30. # Imports (Custom)

  31. 

  32. import ui_carla_host

  33. 

  34. from carla_app import *

  35. from carla_database import *

  36. from carla_settings import *

  37. from carla_utils import *

  38. from carla_widgets import *

  39. 

  40. from patchcanvas import patchcanvas

  41. from widgets.digitalpeakmeter import DigitalPeakMeter

  42. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  43. 

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

  45. # Try Import OpenGL

  46. 

  47. try:

  48.     from PyQt5.QtOpenGL import QGLWidget

  49.     hasGL = True

  50. except:

  51.     hasGL = False

  52. 

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

  54. # Safe exception hook, needed for PyQt5

  55. 

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

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

  58. 

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

  60. # Session Management support

  61. 

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

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

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

  65. 

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

  67. # Small print helper

  68. 

  69. def processMode2Str(processMode):

  70.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  71.         return "Single client"

  72.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  73.         return "Multi client"

  74.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  75.         return "Continuous Rack"

  76.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  77.         return "Patchbay"

  78.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  79.         return "Bridge"

  80.     return "Unknown"

  81. 

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

  83. # Carla Print class

  84. 

  85. class CarlaPrint:

  86.     def __init__(self, err):

  87.         self.err = err

  88. 

  89.     def flush(self):

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

  91. 

  92.     def write(self, string):

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

  94. 

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

  96. # Host Window

  97. 

  98. class HostWindow(QMainWindow):

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

  100.     # signals

  101.     SIGTERM = pyqtSignal()

  102.     SIGUSR1 = pyqtSignal()

  103. 

  104.     # CustomActions

  105.     CUSTOM_ACTION_NONE         = 0

  106.     CUSTOM_ACTION_APP_CLOSE    = 1

  107.     CUSTOM_ACTION_PROJECT_LOAD = 2

  108. 

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

  110. 

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

  112.         QMainWindow.__init__(self, parent)

  113.         self.host = host

  114.         self.ui = ui_carla_host.Ui_CarlaHostW()

  115.         self.ui.setupUi(self)

  116.         gCarla.gui = self

  117. 

  118.         if False:

  119.             # kdevelop likes this :)

  120.             host = CarlaHostNull()

  121.             self.host = host

  122. 

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

  124. 

  125.         self.fParentOrSelf = parent or self

  126. 

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

  128.         # Internal stuff

  129. 

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

  131.         self.fIdleTimerOSC  = 0

  132.         self.fIdleTimerFast = 0

  133.         self.fIdleTimerSlow = 0

  134. 

  135.         self.fLadspaRdfNeedsUpdate = True

  136.         self.fLadspaRdfList = []

  137. 

  138.         self.fPluginCount = 0

  139.         self.fPluginList  = []

  140. 

  141.         self.fProjectFilename  = ""

  142.         self.fIsProjectLoading = False

  143.         self.fCurrentlyRemovingAllPlugins = False

  144. 

  145.         self.fLastTransportBPM   = 0.0

  146.         self.fLastTransportFrame = 0

  147.         self.fLastTransportState = False

  148.         self.fBufferSize         = 0

  149.         self.fSampleRate         = 0.0

  150.         self.fOscAddress         = ""

  151. 

  152.         if MACOS:

  153.             self.fMacClosingHelper = True

  154. 

  155.         # CancelableActionCallback Box

  156.         self.fCancelableActionBox = None

  157. 

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

  159.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  160. 

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

  162.         self.fFirstEngineInit = True

  163. 

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

  165.         self.fSavedSettings = {}

  166. 

  167.         if host.isControl:

  168.             self.fClientName         = "Carla-Control"

  169.             self.fSessionManagerName = "Control"

  170.         elif host.isPlugin:

  171.             self.fClientName         = "Carla-Plugin"

  172.             self.fSessionManagerName = "Plugin"

  173.         elif LADISH_APP_NAME:

  174.             self.fClientName         = LADISH_APP_NAME

  175.             self.fSessionManagerName = "LADISH"

  176.         elif NSM_URL and host.nsmOK:

  177.             self.fClientName         = "Carla.tmp"

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

  179.         else:

  180.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  181.             self.fSessionManagerName = ""

  182. 

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

  184.         # Internal stuff (patchbay)

  185. 

  186.         self.fExportImage = QImage()

  187. 

  188.         self.fPeaksCleared = True

  189. 

  190.         self.fExternalPatchbay = False

  191.         self.fSelectedPlugins  = []

  192. 

  193.         self.fCanvasWidth  = 0

  194.         self.fCanvasHeight = 0

  195.         self.fMiniCanvasUpdateTimeout = 0

  196. 

  197.         self.fWithCanvas = withCanvas

  198. 

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

  200.         # Set up GUI (engine stopped)

  201. 

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

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

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

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

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

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

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

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

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

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

  212. 

  213.             if self.host.isControl:

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

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

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

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

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

  219.                 self.ui.act_plugin_add2.setVisible(False)

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

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

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

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

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

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

  226.                 self.ui.tw_statusbar.setEnabled(False)

  227.                 self.ui.tw_statusbar.setVisible(False)

  228.             else:

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

  230. 

  231.         else:

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

  233. 

  234.             if WINDOWS:

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

  236. 

  237.         if self.host.isControl:

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

  239.         else:

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

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

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

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

  244. 

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

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

  247. 

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

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

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

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

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

  253. 

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

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

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

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

  258. 

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

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

  261. 

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

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

  264. 

  265.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  283.             self.ui.tw_miniCanvas.hide()

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

  285.             if WINDOWS:

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

  287. 

  288.         # ----------------------------------------------------------------------------------------------------

  289.         # Set up GUI (disk)

  290. 

  291.         exts = gCarla.utils.get_supported_file_extensions()

  292. 

  293.         self.fDirModel = QFileSystemModel(self)

  294.         self.fDirModel.setRootPath(HOME)

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

  296. 

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

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

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

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

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

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

  303. 

  304.         # ----------------------------------------------------------------------------------------------------

  305.         # Set up GUI (transport)

  306. 

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

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

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

  310. 

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

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

  313. 

  314.         if minLabelWidth < labelTimeWidth:

  315.             minLabelWidth = labelTimeWidth

  316.         if minLabelWidth < labelBBTWidth:

  317.             minLabelWidth = labelBBTWidth

  318. 

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

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

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

  322. 

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

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

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

  326. 

  327.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  340. 

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

  342. 

  343.         # ----------------------------------------------------------------------------------------------------

  344.         # Set up GUI (rack)

  345. 

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

  347. 

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

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

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

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

  352. 

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

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

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

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

  357. 

  358.         self.updateStyle()

  359. 

  360.         self.ui.rack.setStyleSheet("""

  361.           CarlaRackList#CarlaRackList {

  362.             background-color: black;

  363.           }

  364.         """)

  365. 

  366.         # ----------------------------------------------------------------------------------------------------

  367.         # Set up GUI (patchbay)

  368. 

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

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

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

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

  373. 

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

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

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

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

  378. 

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

  380.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  382. 

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

  384. 

  385.         self.ui.miniCanvasPreview.setRealParent(self)

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

  387. 

  388.         # ----------------------------------------------------------------------------------------------------

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

  390. 

  391.         if MACOS:

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

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

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

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

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

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

  398. 

  399.         # ----------------------------------------------------------------------------------------------------

  400.         # Load Settings

  401. 

  402.         self.loadSettings(True)

  403. 

  404.         # ----------------------------------------------------------------------------------------------------

  405.         # Set-up Canvas

  406. 

  407.         if withCanvas:

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

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

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

  411. 

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

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

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

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

  416. 

  417.             self.setupCanvas()

  418. 

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

  420.         # Connect actions to functions

  421. 

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

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

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

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

  426. 

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

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

  429. 

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

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

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

  433. 

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

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

  436. 

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

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

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

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

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

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

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

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

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

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

  447. 

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

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

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

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

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

  453. 

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

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

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

  457. 

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

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

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

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

  462. 

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

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

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

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

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

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

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

  470. 

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

  472. 

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

  474. 

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

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

  477. 

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

  479. 

  480.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  498. 

  499.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  500.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  501. 

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

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

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

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

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

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

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

  509. 

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

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

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

  513. 

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

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

  516. 

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

  518. 

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

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

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

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

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

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

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

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

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

  528. 

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

  530. 

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

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

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

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

  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 and not host.isControl:

  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.         QTimer.singleShot(0, self.slot_engineStart)

  580. 

  581.     # --------------------------------------------------------------------------------------------------------

  582.     # Setup

  583. 

  584.     def compactPlugin(self, pluginId):

  585.         if pluginId > self.fPluginCount:

  586.             return

  587. 

  588.         pitem = self.fPluginList[pluginId]

  589. 

  590.         if pitem is None:

  591.             return

  592. 

  593.         pitem.recreateWidget(True)

  594. 

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

  596.         if pluginId > self.fPluginCount:

  597.             return

  598. 

  599.         pitem = self.fPluginList[pluginId]

  600. 

  601.         if pitem is None:

  602.             return

  603. 

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

  605.         pitem.recreateWidget(newColor = color)

  606. 

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

  608.         if pluginId > self.fPluginCount:

  609.             return

  610. 

  611.         pitem = self.fPluginList[pluginId]

  612. 

  613.         if pitem is None:

  614.             return

  615. 

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

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

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

  619.         else:

  620.             pitem.recreateWidget(newSkin = skin)

  621. 

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

  623.         if pluginIdA == pluginIdB:

  624.             return

  625.         if pluginIdA < 0 or pluginIdB < 0:

  626.             return

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

  628.             return

  629. 

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

  631. 

  632.         itemA = self.fPluginList[pluginIdA]

  633.         compactA = itemA.isCompacted()

  634.         guiShownA = itemA.isGuiShown()

  635. 

  636.         itemB = self.fPluginList[pluginIdB]

  637.         compactB = itemB.isCompacted()

  638.         guiShownB = itemB.isGuiShown()

  639. 

  640.         itemA.setPluginId(pluginIdA)

  641.         itemA.recreateWidget2(compactB, guiShownB)

  642. 

  643.         itemB.setPluginId(pluginIdB)

  644.         itemB.recreateWidget2(compactA, guiShownA)

  645. 

  646.         if self.fWithCanvas:

  647.             self.slot_canvasRefresh()

  648. 

  649.     def setLoadRDFsNeeded(self):

  650.         self.fLadspaRdfNeedsUpdate = True

  651. 

  652.     def setProperWindowTitle(self):

  653.         title = self.fClientName

  654. 

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

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

  657.         if self.fSessionManagerName:

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

  659. 

  660.         self.setWindowTitle(title)

  661. 

  662.     def updateBufferSize(self, newBufferSize):

  663.         if self.fBufferSize == newBufferSize:

  664.             return

  665.         self.fBufferSize = newBufferSize

  666.         self.ui.cb_buffer_size.clear()

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

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

  669. 

  670.     def updateSampleRate(self, newSampleRate):

  671.         if self.fSampleRate == newSampleRate:

  672.             return

  673.         self.fSampleRate = newSampleRate

  674.         self.ui.cb_sample_rate.clear()

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

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

  677.         self.refreshTransport(True)

  678. 

  679.     # --------------------------------------------------------------------------------------------------------

  680.     # Files

  681. 

  682.     def makeExtraFilename(self):

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

  684. 

  685.     def loadProjectNow(self):

  686.         if not self.fProjectFilename:

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

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

  689.             return

  690. 

  691.         self.projectLoadingStarted()

  692.         self.fIsProjectLoading = True

  693. 

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

  695.             self.fIsProjectLoading = False

  696.             self.projectLoadingFinished()

  697. 

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

  699.                              self.host.get_last_error(),

  700.                              QMessageBox.Ok, QMessageBox.Ok)

  701. 

  702.     def loadProjectLater(self, filename):

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

  704.         self.setProperWindowTitle()

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

  706. 

  707.     def saveProjectNow(self):

  708.         if not self.fProjectFilename:

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

  710. 

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

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

  713.                              self.host.get_last_error(),

  714.                              QMessageBox.Ok, QMessageBox.Ok)

  715.             return

  716. 

  717.         if not self.fWithCanvas:

  718.             return

  719. 

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

  721.             json.dump({

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

  723.             }, fh)

  724. 

  725.     def projectLoadingStarted(self):

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

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

  728. 

  729.     def projectLoadingFinished(self):

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

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

  732. 

  733.         if not self.fWithCanvas:

  734.             return

  735. 

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

  737. 

  738.         extrafile = self.makeExtraFilename()

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

  740.             return

  741. 

  742.         try:

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

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

  745.         except:

  746.             return

  747. 

  748.         patchcanvas.restoreGroupPositions(canvasdata)

  749. 

  750.     # --------------------------------------------------------------------------------------------------------

  751.     # Files (menu actions)

  752. 

  753.     @pyqtSlot()

  754.     def slot_fileNew(self):

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

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

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

  758.             return

  759. 

  760.         self.pluginRemoveAll()

  761.         self.fProjectFilename = ""

  762.         self.setProperWindowTitle()

  763.         self.host.clear_project_filename()

  764. 

  765.     @pyqtSlot()

  766.     def slot_fileOpen(self):

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

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

  769. 

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

  771.         if not filename:

  772.             return

  773. 

  774.         newFile = True

  775. 

  776.         if self.fPluginCount > 0:

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

  778.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  780. 

  781.         if newFile:

  782.             self.pluginRemoveAll()

  783.             self.fProjectFilename = filename

  784.             self.setProperWindowTitle()

  785.             self.loadProjectNow()

  786.         else:

  787.             filenameOld = self.fProjectFilename

  788.             self.fProjectFilename = filename

  789.             self.loadProjectNow()

  790.             self.fProjectFilename = filenameOld

  791. 

  792.     @pyqtSlot()

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

  794.         if self.fProjectFilename and not saveAs:

  795.             return self.saveProjectNow()

  796. 

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

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

  799. 

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

  801.         if not filename:

  802.             return

  803. 

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

  805.             filename += ".carxp"

  806. 

  807.         if self.fProjectFilename != filename:

  808.             self.fProjectFilename = filename

  809.             self.setProperWindowTitle()

  810. 

  811.         self.saveProjectNow()

  812. 

  813.     @pyqtSlot()

  814.     def slot_fileSaveAs(self):

  815.         self.slot_fileSave(True)

  816. 

  817.     @pyqtSlot()

  818.     def slot_loadProjectNow(self):

  819.         self.loadProjectNow()

  820. 

  821.     # --------------------------------------------------------------------------------------------------------

  822.     # Engine (menu actions)

  823. 

  824.     @pyqtSlot()

  825.     def slot_engineStart(self):

  826.         audioDriver = setEngineSettings(self.host)

  827.         firstInit   = self.fFirstEngineInit

  828. 

  829.         self.fFirstEngineInit = False

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

  831. 

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

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

  834.                 settings = QSettings()

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

  836.                 del settings

  837.                 self.host.transport_bpm(lastBpm)

  838.             return

  839. 

  840.         elif firstInit:

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

  842.             return

  843. 

  844.         audioError = self.host.get_last_error()

  845. 

  846.         if audioError:

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

  848.         else:

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

  850. 

  851.     @pyqtSlot()

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

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

  854. 

  855.         if self.fPluginCount == 0:

  856.             self.engineStopFinal()

  857.             return True

  858. 

  859.         if not forced:

  860.             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"

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

  862.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  863.             if ask != QMessageBox.Yes:

  864.                 return False

  865. 

  866.         return self.slot_engineStopTryAgain()

  867. 

  868.     @pyqtSlot()

  869.     def slot_engineStopTryAgain(self):

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

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

  872.             return False

  873. 

  874.         self.engineStopFinal()

  875.         return True

  876. 

  877.     def engineStopFinal(self):

  878.         self.killTimers()

  879. 

  880.         if self.host.is_engine_running():

  881.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  882.                 self.removeAllPlugins()

  883.             elif self.fPluginCount != 0:

  884.                 self.fCurrentlyRemovingAllPlugins = True

  885.                 self.projectLoadingStarted()

  886. 

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

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

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

  890. 

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

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

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

  894. 

  895.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  896.             self.close()

  897.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  898.             self.slot_engineStart()

  899.             self.loadProjectNow()

  900.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  901. 

  902.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  903. 

  904.     # --------------------------------------------------------------------------------------------------------

  905.     # Engine (host callbacks)

  906. 

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

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

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

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

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

  912. 

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

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

  915. 

  916.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not (self.host.isControl or self.host.isPlugin):

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

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

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

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

  921.         else:

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

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

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

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

  926. 

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

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

  929. 

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

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

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

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

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

  935.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  936. 

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

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

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

  940. 

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

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

  943. 

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

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

  946. 

  947.         self.updateBufferSize(bufferSize)

  948.         self.updateSampleRate(int(sampleRate))

  949.         self.refreshRuntimeInfo(0.0, 0)

  950.         self.startTimers()

  951. 

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

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

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

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

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

  957. 

  958.     @pyqtSlot()

  959.     def slot_handleEngineStoppedCallback(self):

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

  961. 

  962.         patchcanvas.clear()

  963.         self.killTimers()

  964. 

  965.         # just in case

  966.         self.removeAllPlugins()

  967.         self.refreshRuntimeInfo(0.0, 0)

  968. 

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

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

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

  972. 

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

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

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

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

  977. 

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

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

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

  981. 

  982.     @pyqtSlot(int, str)

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

  984.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  985. 

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

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

  988. 

  989.     @pyqtSlot(int)

  990.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  991.         self.updateBufferSize(newBufferSize)

  992. 

  993.     @pyqtSlot(float)

  994.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  995.         self.updateSampleRate(int(newSampleRate))

  996. 

  997.     @pyqtSlot(int, bool, str)

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

  999.         if self.fCancelableActionBox is not None:

  1000.             self.fCancelableActionBox.close()

  1001. 

  1002.         if started:

  1003.             self.fCancelableActionBox = QMessageBox(self)

  1004.             self.fCancelableActionBox.setIcon(QMessageBox.Critical)

  1005.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1006.             self.fCancelableActionBox.setText(action)

  1007.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1008.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1009.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1010.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1011.             self.fCancelableActionBox.show()

  1012. 

  1013.         else:

  1014.             self.fCancelableActionBox = None

  1015. 

  1016.     @pyqtSlot()

  1017.     def slot_canlableActionBoxClicked(self):

  1018.         self.host.cancel_engine_action()

  1019. 

  1020.     @pyqtSlot()

  1021.     def slot_handleProjectLoadFinishedCallback(self):

  1022.         self.fIsProjectLoading = False

  1023.         self.projectLoadingFinished()

  1024. 

  1025.     # --------------------------------------------------------------------------------------------------------

  1026.     # Plugins

  1027. 

  1028.     def removeAllPlugins(self):

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

  1030.         patchcanvas.handleAllPluginsRemoved()

  1031. 

  1032.         while self.ui.listWidget.takeItem(0):

  1033.             pass

  1034. 

  1035.         self.clearSideStuff()

  1036. 

  1037.         for pitem in self.fPluginList:

  1038.             if pitem is None:

  1039.                 continue

  1040. 

  1041.             pitem.close()

  1042.             del pitem

  1043. 

  1044.         self.fPluginCount = 0

  1045.         self.fPluginList  = []

  1046. 

  1047.     # --------------------------------------------------------------------------------------------------------

  1048.     # Plugins (menu actions)

  1049. 

  1050.     def showAddPluginDialog(self):

  1051.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1052. 

  1053.         if not dialog.exec_():

  1054.             return

  1055. 

  1056.         if not self.host.is_engine_running():

  1057.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1058.             return

  1059. 

  1060.         btype    = dialog.fRetPlugin['build']

  1061.         ptype    = dialog.fRetPlugin['type']

  1062.         filename = dialog.fRetPlugin['filename']

  1063.         label    = dialog.fRetPlugin['label']

  1064.         uniqueId = dialog.fRetPlugin['uniqueId']

  1065.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1066. 

  1067.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1068. 

  1069.     def showAddJackAppDialog(self):

  1070.         dialog = JackApplicationW(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.         return dialog.getCommandAndFlags()

  1080. 

  1081.     @pyqtSlot()

  1082.     def showPluginActionsMenu(self):

  1083.         menu = QMenu(self)

  1084. 

  1085.         menu.addSection("Plugins")

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

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

  1088. 

  1089.         menu.addSection("All plugins (macros)")

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

  1091.         menu.addAction(self.ui.act_plugins_disable)

  1092.         menu.addSeparator()

  1093.         menu.addAction(self.ui.act_plugins_volume100)

  1094.         menu.addAction(self.ui.act_plugins_mute)

  1095.         menu.addSeparator()

  1096.         menu.addAction(self.ui.act_plugins_wet100)

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

  1098.         menu.addSeparator()

  1099.         menu.addAction(self.ui.act_plugins_center)

  1100.         menu.addSeparator()

  1101.         menu.addAction(self.ui.act_plugins_compact)

  1102.         menu.addAction(self.ui.act_plugins_expand)

  1103. 

  1104.         menu.exec_(QCursor.pos())

  1105. 

  1106.     @pyqtSlot()

  1107.     def slot_pluginAdd(self):

  1108.         data = self.showAddPluginDialog()

  1109. 

  1110.         if data is None:

  1111.             return

  1112. 

  1113.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1114. 

  1115.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1116.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1117. 

  1118.     @pyqtSlot()

  1119.     def slot_confirmRemoveAll(self):

  1120.         if self.fPluginCount == 0:

  1121.             return

  1122. 

  1123.         if QMessageBox.question(self, self.tr("Remove All"),

  1124.                                       self.tr("Are you sure you want to remove all plugins?"),

  1125.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1126.             return

  1127. 

  1128.         self.pluginRemoveAll()

  1129. 

  1130.     def pluginRemoveAll(self):

  1131.         if self.fPluginCount == 0:

  1132.             return

  1133. 

  1134.         self.fCurrentlyRemovingAllPlugins = True

  1135.         self.projectLoadingStarted()

  1136. 

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

  1138.             self.projectLoadingFinished()

  1139.             self.fCurrentlyRemovingAllPlugins = False

  1140.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1141.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1142. 

  1143.     @pyqtSlot()

  1144.     def slot_jackAppAdd(self):

  1145.         data = self.showAddJackAppDialog()

  1146. 

  1147.         if data is None:

  1148.             return

  1149. 

  1150.         filename, name, label = data

  1151. 

  1152.         if not filename:

  1153.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1154.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1155.             return

  1156. 

  1157.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1158.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1159.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1160. 

  1161.     # --------------------------------------------------------------------------------------------------------

  1162.     # Plugins (macros)

  1163. 

  1164.     @pyqtSlot()

  1165.     def slot_pluginsEnable(self):

  1166.         if not self.host.is_engine_running():

  1167.             return

  1168. 

  1169.         for pitem in self.fPluginList:

  1170.             if pitem is None:

  1171.                 break

  1172. 

  1173.             pitem.getWidget().setActive(True, True, True)

  1174. 

  1175.     @pyqtSlot()

  1176.     def slot_pluginsDisable(self):

  1177.         if not self.host.is_engine_running():

  1178.             return

  1179. 

  1180.         for pitem in self.fPluginList:

  1181.             if pitem is None:

  1182.                 break

  1183. 

  1184.             pitem.getWidget().setActive(False, True, True)

  1185. 

  1186.     @pyqtSlot()

  1187.     def slot_pluginsVolume100(self):

  1188.         if not self.host.is_engine_running():

  1189.             return

  1190. 

  1191.         for pitem in self.fPluginList:

  1192.             if pitem is None:

  1193.                 break

  1194. 

  1195.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1196. 

  1197.     @pyqtSlot()

  1198.     def slot_pluginsMute(self):

  1199.         if not self.host.is_engine_running():

  1200.             return

  1201. 

  1202.         for pitem in self.fPluginList:

  1203.             if pitem is None:

  1204.                 break

  1205. 

  1206.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1207. 

  1208.     @pyqtSlot()

  1209.     def slot_pluginsWet100(self):

  1210.         if not self.host.is_engine_running():

  1211.             return

  1212. 

  1213.         for pitem in self.fPluginList:

  1214.             if pitem is None:

  1215.                 break

  1216. 

  1217.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_pluginsBypass(self):

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

  1222.             return

  1223. 

  1224.         for pitem in self.fPluginList:

  1225.             if pitem is None:

  1226.                 break

  1227. 

  1228.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1229. 

  1230.     @pyqtSlot()

  1231.     def slot_pluginsCenter(self):

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

  1233.             return

  1234. 

  1235.         for pitem in self.fPluginList:

  1236.             if pitem is None:

  1237.                 break

  1238. 

  1239.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1240.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1241.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1242. 

  1243.     @pyqtSlot()

  1244.     def slot_pluginsCompact(self):

  1245.         for pitem in self.fPluginList:

  1246.             if pitem is None:

  1247.                 break

  1248.             pitem.compact()

  1249. 

  1250.     @pyqtSlot()

  1251.     def slot_pluginsExpand(self):

  1252.         for pitem in self.fPluginList:

  1253.             if pitem is None:

  1254.                 break

  1255.             pitem.expand()

  1256. 

  1257.     # --------------------------------------------------------------------------------------------------------

  1258.     # Plugins (host callbacks)

  1259. 

  1260.     @pyqtSlot(int, str)

  1261.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1262.         pitem = self.ui.listWidget.createItem(pluginId)

  1263. 

  1264.         self.fPluginList.append(pitem)

  1265.         self.fPluginCount += 1

  1266. 

  1267.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1268. 

  1269.     @pyqtSlot(int)

  1270.     def slot_handlePluginRemovedCallback(self, pluginId):

  1271.         patchcanvas.handlePluginRemoved(pluginId)

  1272. 

  1273.         if pluginId in self.fSelectedPlugins:

  1274.             self.clearSideStuff()

  1275. 

  1276.         pitem = self.getPluginItem(pluginId)

  1277. 

  1278.         self.fPluginCount -= 1

  1279.         self.fPluginList.pop(pluginId)

  1280.         self.ui.listWidget.takeItem(pluginId)

  1281. 

  1282.         if pitem is not None:

  1283.             pitem.close()

  1284.             del pitem

  1285. 

  1286.         if self.fPluginCount == 0:

  1287.             self.ui.act_plugin_remove_all.setEnabled(False)

  1288.             if self.fCurrentlyRemovingAllPlugins:

  1289.                 self.fCurrentlyRemovingAllPlugins = False

  1290.                 self.projectLoadingFinished()

  1291.             return

  1292. 

  1293.         # push all plugins 1 slot back

  1294.         for i in range(pluginId, self.fPluginCount):

  1295.             pitem = self.fPluginList[i]

  1296.             pitem.setPluginId(i)

  1297. 

  1298.         self.ui.act_plugin_remove_all.setEnabled(True)

  1299. 

  1300.     # --------------------------------------------------------------------------------------------------------

  1301.     # Canvas

  1302. 

  1303.     def clearSideStuff(self):

  1304.         if self.fWithCanvas:

  1305.             self.scene.clearSelection()

  1306. 

  1307.         self.fSelectedPlugins = []

  1308. 

  1309.         self.ui.keyboard.allNotesOff(False)

  1310.         self.ui.scrollArea.setEnabled(False)

  1311. 

  1312.         self.fPeaksCleared = True

  1313.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1314.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1315.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1316.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1317. 

  1318.     def setupCanvas(self):

  1319.         pOptions = patchcanvas.options_t()

  1320.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1321.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1322.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1323.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1324.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1325. 

  1326.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1327.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1328.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1329.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1330.         else:

  1331.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1332. 

  1333.         pFeatures = patchcanvas.features_t()

  1334.         pFeatures.group_info   = False

  1335.         pFeatures.group_rename = False

  1336.         pFeatures.port_info    = False

  1337.         pFeatures.port_rename  = False

  1338.         pFeatures.handle_group_pos = True

  1339. 

  1340.         patchcanvas.setOptions(pOptions)

  1341.         patchcanvas.setFeatures(pFeatures)

  1342.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1343. 

  1344.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1345. 

  1346.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1347.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1348.             self.fCanvasHeight = int(tryCanvasSize[1])

  1349.         else:

  1350.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1351.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1352. 

  1353.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1354.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1355.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1356. 

  1357.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1358.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1359. 

  1360.     def updateCanvasInitialPos(self):

  1361.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1362.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1363.         patchcanvas.setInitialPos(x, y)

  1364. 

  1365.     def updateMiniCanvasLater(self):

  1366.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1367. 

  1368.     # --------------------------------------------------------------------------------------------------------

  1369.     # Canvas (menu actions)

  1370. 

  1371.     @pyqtSlot()

  1372.     def slot_canvasShowInternal(self):

  1373.         self.fExternalPatchbay = False

  1374.         self.ui.act_canvas_show_internal.blockSignals(True)

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

  1376.         self.ui.act_canvas_show_internal.setChecked(True)

  1377.         self.ui.act_canvas_show_external.setChecked(False)

  1378.         self.ui.act_canvas_show_internal.blockSignals(False)

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

  1380.         self.slot_canvasRefresh()

  1381. 

  1382.     @pyqtSlot()

  1383.     def slot_canvasShowExternal(self):

  1384.         self.fExternalPatchbay = True

  1385.         self.ui.act_canvas_show_internal.blockSignals(True)

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

  1387.         self.ui.act_canvas_show_internal.setChecked(False)

  1388.         self.ui.act_canvas_show_external.setChecked(True)

  1389.         self.ui.act_canvas_show_internal.blockSignals(False)

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

  1391.         self.slot_canvasRefresh()

  1392. 

  1393.     @pyqtSlot()

  1394.     def slot_canvasArrange(self):

  1395.         patchcanvas.arrange()

  1396. 

  1397.     @pyqtSlot()

  1398.     def slot_canvasRefresh(self):

  1399.         patchcanvas.clear()

  1400. 

  1401.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1402.             return

  1403. 

  1404.         if self.host.is_engine_running():

  1405.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1406. 

  1407.         self.updateMiniCanvasLater()

  1408. 

  1409.     @pyqtSlot()

  1410.     def slot_canvasZoomFit(self):

  1411.         self.scene.zoom_fit()

  1412. 

  1413.     @pyqtSlot()

  1414.     def slot_canvasZoomIn(self):

  1415.         self.scene.zoom_in()

  1416. 

  1417.     @pyqtSlot()

  1418.     def slot_canvasZoomOut(self):

  1419.         self.scene.zoom_out()

  1420. 

  1421.     @pyqtSlot()

  1422.     def slot_canvasZoomReset(self):

  1423.         self.scene.zoom_reset()

  1424. 

  1425.     @pyqtSlot()

  1426.     def slot_canvasSaveImage(self):

  1427.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1428. 

  1429.         # FIXME use ok value, test if it works as expected

  1430.         if not newPath:

  1431.             return

  1432. 

  1433.         self.scene.clearSelection()

  1434. 

  1435.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1436.             imgFormat = "JPG"

  1437.         elif newPath.lower().endswith((".png",)):

  1438.             imgFormat = "PNG"

  1439.         else:

  1440.             # File-dialog may not auto-add the extension

  1441.             imgFormat = "PNG"

  1442.             newPath  += ".png"

  1443. 

  1444.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1445.         painter = QPainter(self.fExportImage)

  1446.         painter.save()

  1447.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1448.         painter.setRenderHint(QPainter.TextAntialiasing)

  1449.         self.scene.render(painter)

  1450.         self.fExportImage.save(newPath, imgFormat, 100)

  1451.         painter.restore()

  1452. 

  1453.     # --------------------------------------------------------------------------------------------------------

  1454.     # Canvas (canvas callbacks)

  1455. 

  1456.     @pyqtSlot(int, int, QPointF)

  1457.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1458.         self.updateMiniCanvasLater()

  1459. 

  1460.     @pyqtSlot()

  1461.     def slot_canvasSelectionChanged(self):

  1462.         self.updateMiniCanvasLater()

  1463. 

  1464.     @pyqtSlot(float)

  1465.     def slot_canvasScaleChanged(self, scale):

  1466.         self.ui.miniCanvasPreview.setViewScale(scale)

  1467. 

  1468.     @pyqtSlot(list)

  1469.     def slot_canvasPluginSelected(self, pluginList):

  1470.         self.ui.keyboard.allNotesOff(False)

  1471.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1472.         self.fSelectedPlugins = pluginList

  1473. 

  1474.     # --------------------------------------------------------------------------------------------------------

  1475.     # Canvas (host callbacks)

  1476. 

  1477.     @pyqtSlot(int, int, int, str)

  1478.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1479.         pcSplit = patchcanvas.SPLIT_UNDEF

  1480.         pcIcon  = patchcanvas.ICON_APPLICATION

  1481. 

  1482.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1483.             pcIcon = patchcanvas.ICON_PLUGIN

  1484.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1485.             pcIcon = patchcanvas.ICON_HARDWARE

  1486.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1487.             pass

  1488.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1489.             pcIcon = patchcanvas.ICON_DISTRHO

  1490.         elif clientIcon == PATCHBAY_ICON_FILE:

  1491.             pcIcon = patchcanvas.ICON_FILE

  1492. 

  1493.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1494. 

  1495.         self.updateMiniCanvasLater()

  1496. 

  1497.         if pluginId < 0:

  1498.             return

  1499.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1500.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1501.             return

  1502. 

  1503.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1504.             hasCustomUI = False

  1505.         else:

  1506.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1507. 

  1508.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1509. 

  1510.     @pyqtSlot(int)

  1511.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1512.         patchcanvas.removeGroup(clientId)

  1513.         self.updateMiniCanvasLater()

  1514. 

  1515.     @pyqtSlot(int, str)

  1516.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1517.         patchcanvas.renameGroup(clientId, newClientName)

  1518.         self.updateMiniCanvasLater()

  1519. 

  1520.     @pyqtSlot(int, int, int)

  1521.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1522.         pcIcon = patchcanvas.ICON_APPLICATION

  1523. 

  1524.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1525.             pcIcon = patchcanvas.ICON_PLUGIN

  1526.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1527.             pcIcon = patchcanvas.ICON_HARDWARE

  1528.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1529.             pass

  1530.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1531.             pcIcon = patchcanvas.ICON_DISTRHO

  1532.         elif clientIcon == PATCHBAY_ICON_FILE:

  1533.             pcIcon = patchcanvas.ICON_FILE

  1534. 

  1535.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1536.         self.updateMiniCanvasLater()

  1537. 

  1538.         if pluginId < 0:

  1539.             return

  1540.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1541.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1542.             return

  1543. 

  1544.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1545.             hasCustomUI = False

  1546.         else:

  1547.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1548. 

  1549.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1550. 

  1551.     @pyqtSlot(int, int, int, str)

  1552.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1553.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1554.             portMode = patchcanvas.PORT_MODE_INPUT

  1555.         else:

  1556.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1557. 

  1558.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1559.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1560.             isAlternate = False

  1561.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1562.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1563.             isAlternate = True

  1564.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1565.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1566.             isAlternate = False

  1567.         else:

  1568.             portType    = patchcanvas.PORT_TYPE_NULL

  1569.             isAlternate = False

  1570. 

  1571.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1572.         self.updateMiniCanvasLater()

  1573. 

  1574.     @pyqtSlot(int, int)

  1575.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1576.         patchcanvas.removePort(groupId, portId)

  1577.         self.updateMiniCanvasLater()

  1578. 

  1579.     @pyqtSlot(int, int, str)

  1580.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1581.         patchcanvas.renamePort(groupId, portId, newPortName)

  1582.         self.updateMiniCanvasLater()

  1583. 

  1584.     @pyqtSlot(int, int, int, int, int)

  1585.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1586.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1587.         self.updateMiniCanvasLater()

  1588. 

  1589.     @pyqtSlot(int, int, int)

  1590.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1591.         patchcanvas.disconnectPorts(connectionId)

  1592.         self.updateMiniCanvasLater()

  1593. 

  1594.     # --------------------------------------------------------------------------------------------------------

  1595.     # Settings

  1596. 

  1597.     def saveSettings(self):

  1598.         settings = QSettings()

  1599. 

  1600.         settings.setValue("Geometry", self.saveGeometry())

  1601.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1602. 

  1603.         if not self.host.isControl:

  1604.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1605. 

  1606.         diskFolders = []

  1607. 

  1608.         for i in range(self.ui.cb_disk.count()):

  1609.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1610. 

  1611.         settings.setValue("DiskFolders", diskFolders)

  1612.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1613. 

  1614.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1615.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1616.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1617.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1618. 

  1619.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1620.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1621. 

  1622.         return settings

  1623. 

  1624.     def loadSettings(self, firstTime):

  1625.         settings = QSettings()

  1626. 

  1627.         if firstTime:

  1628.             self.restoreGeometry(settings.value("Geometry", b""))

  1629. 

  1630.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1631.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

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

  1633.             self.ui.toolBar.setVisible(showToolbar)

  1634. 

  1635.             #if settings.contains("SplitterState"):

  1636.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1637.             #else:

  1638.                 #self.ui.splitter.setSizes([210, 99999])

  1639. 

  1640.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1641.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1642.             self.slot_showSidePanel(showSidePanel)

  1643. 

  1644.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1645. 

  1646.             self.ui.cb_disk.setItemData(0, HOME)

  1647. 

  1648.             for i in range(len(diskFolders)):

  1649.                 if i == 0: continue

  1650.                 folder = diskFolders[i]

  1651.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1652. 

  1653.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1654.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1655. 

  1656.             showMeters = settings.value("ShowMeters", True, type=bool)

  1657.             self.ui.act_settings_show_meters.setChecked(showMeters)

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

  1659.             self.ui.peak_out.setVisible(showMeters)

  1660. 

  1661.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1662.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1663.             self.ui.scrollArea.setVisible(showKeyboard)

  1664. 

  1665.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1666. 

  1667.         # TODO - complete this

  1668. 

  1669.         self.fSavedSettings = {

  1670.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1671.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1672.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1673.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1674.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1675.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1676.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1677.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1678.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1679.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1680.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1681.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1682.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1683.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1684.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1685.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1686.         }

  1687. 

  1688.         settings2 = QSettings("falkTX", "Carla2")

  1689. 

  1690.         if self.host.experimental and not self.host.isControl:

  1691.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

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

  1693.             self.ui.act_plugin_add_jack.setVisible(visible)

  1694.         else:

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

  1696.             self.ui.act_plugin_add_jack.setVisible(False)

  1697. 

  1698.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1699. 

  1700.         setEngineSettings(self.host)

  1701.         self.restartTimersIfNeeded()

  1702. 

  1703.         return settings

  1704. 

  1705.     # --------------------------------------------------------------------------------------------------------

  1706.     # Settings (helpers)

  1707. 

  1708.     def enableTransport(self, enabled):

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

  1710.         self.ui.group_transport_settings.setEnabled(enabled)

  1711. 

  1712.     @pyqtSlot()

  1713.     def slot_restoreCanvasScrollbarValues(self):

  1714.         settings = QSettings()

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

  1716.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1717. 

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

  1719.     # Settings (menu actions)

  1720. 

  1721.     @pyqtSlot(bool)

  1722.     def slot_showSidePanel(self, yesNo):

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

  1724.         self.ui.dockWidget.setVisible(yesNo)

  1725. 

  1726.     @pyqtSlot(bool)

  1727.     def slot_showToolbar(self, yesNo):

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

  1729.         self.ui.toolBar.setVisible(yesNo)

  1730. 

  1731.     @pyqtSlot(bool)

  1732.     def slot_showCanvasMeters(self, yesNo):

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

  1734.         self.ui.peak_out.setVisible(yesNo)

  1735.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1736. 

  1737.     @pyqtSlot(bool)

  1738.     def slot_showCanvasKeyboard(self, yesNo):

  1739.         self.ui.scrollArea.setVisible(yesNo)

  1740.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1741. 

  1742.     @pyqtSlot()

  1743.     def slot_configureCarla(self):

  1744.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1745.         if not dialog.exec_():

  1746.             return

  1747. 

  1748.         self.loadSettings(False)

  1749. 

  1750.         patchcanvas.clear()

  1751. 

  1752.         self.setupCanvas()

  1753.         self.slot_miniCanvasCheckAll()

  1754. 

  1755.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1756.             pass

  1757.         elif self.host.is_engine_running():

  1758.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1759. 

  1760.     # --------------------------------------------------------------------------------------------------------

  1761.     # About (menu actions)

  1762. 

  1763.     @pyqtSlot()

  1764.     def slot_aboutCarla(self):

  1765.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1766. 

  1767.     @pyqtSlot()

  1768.     def slot_aboutJuce(self):

  1769.         JuceAboutW(self.fParentOrSelf).exec_()

  1770. 

  1771.     @pyqtSlot()

  1772.     def slot_aboutQt(self):

  1773.         QApplication.instance().aboutQt()

  1774. 

  1775.     # --------------------------------------------------------------------------------------------------------

  1776.     # Disk (menu actions)

  1777. 

  1778.     @pyqtSlot(int)

  1779.     def slot_diskFolderChanged(self, index):

  1780.         if index < 0:

  1781.             return

  1782.         elif index == 0:

  1783.             filename = HOME

  1784.             self.ui.b_disk_remove.setEnabled(False)

  1785.         else:

  1786.             filename = self.ui.cb_disk.itemData(index)

  1787.             self.ui.b_disk_remove.setEnabled(True)

  1788. 

  1789.         self.fDirModel.setRootPath(filename)

  1790.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1791. 

  1792.     @pyqtSlot()

  1793.     def slot_diskFolderAdd(self):

  1794.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1795. 

  1796.         if newPath:

  1797.             if newPath[-1] == os.sep:

  1798.                 newPath = newPath[:-1]

  1799.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1800.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1801.             self.ui.b_disk_remove.setEnabled(True)

  1802. 

  1803.     @pyqtSlot()

  1804.     def slot_diskFolderRemove(self):

  1805.         index = self.ui.cb_disk.currentIndex()

  1806. 

  1807.         if index <= 0:

  1808.             return

  1809. 

  1810.         self.ui.cb_disk.removeItem(index)

  1811. 

  1812.         if self.ui.cb_disk.currentIndex() == 0:

  1813.             self.ui.b_disk_remove.setEnabled(False)

  1814. 

  1815.     @pyqtSlot(QModelIndex)

  1816.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1817.         filename = self.fDirModel.filePath(modelIndex)

  1818. 

  1819.         if not self.ui.listWidget.isDragUrlValid(filename):

  1820.             return

  1821. 

  1822.         if not self.host.load_file(filename):

  1823.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1824.                              self.tr("Failed to load file"),

  1825.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1826. 

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

  1828.     # Transport

  1829. 

  1830.     def refreshTransport(self, forced = False):

  1831.         if not self.isVisible():

  1832.             return

  1833.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1834.             return

  1835. 

  1836.         timeInfo = self.host.get_transport_info()

  1837.         playing  = timeInfo['playing']

  1838.         frame    = timeInfo['frame']

  1839.         bpm      = timeInfo['bpm']

  1840. 

  1841.         if playing != self.fLastTransportState or forced:

  1842.             if playing:

  1843.                 icon = getIcon("media-playback-pause")

  1844.                 self.ui.b_transport_play.setChecked(True)

  1845.                 self.ui.b_transport_play.setIcon(icon)

  1846.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1847.             else:

  1848.                 icon = getIcon("media-playback-start")

  1849.                 self.ui.b_transport_play.setChecked(False)

  1850.                 self.ui.b_transport_play.setIcon(icon)

  1851.                 #self.ui.b_play.setText(self.tr("&Play"))

  1852. 

  1853.             self.fLastTransportState = playing

  1854. 

  1855.         if frame != self.fLastTransportFrame or forced:

  1856.             self.fLastTransportFrame = frame

  1857. 

  1858.             time = frame / self.fSampleRate

  1859.             secs =  time % 60

  1860.             mins = (time / 60) % 60

  1861.             hrs  = (time / 3600) % 60

  1862.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1863. 

  1864.             frame1 =  frame % 1000

  1865.             frame2 = (frame / 1000) % 1000

  1866.             frame3 = (frame / 1000000) % 1000

  1867.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1868. 

  1869.             bar  = timeInfo['bar']

  1870.             beat = timeInfo['beat']

  1871.             tick = timeInfo['tick']

  1872.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1873. 

  1874.         if bpm != self.fLastTransportBPM or forced:

  1875.             self.fLastTransportBPM = bpm

  1876. 

  1877.             if bpm > 0.0:

  1878.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1879.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1880.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1881.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1882.             else:

  1883.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1884. 

  1885.     # --------------------------------------------------------------------------------------------------------

  1886.     # Transport (menu actions)

  1887. 

  1888.     @pyqtSlot(bool)

  1889.     def slot_transportPlayPause(self, toggled):

  1890.         if self.host.isPlugin or not self.host.is_engine_running():

  1891.             return

  1892. 

  1893.         if toggled:

  1894.             self.host.transport_play()

  1895.         else:

  1896.             self.host.transport_pause()

  1897. 

  1898.         self.refreshTransport()

  1899. 

  1900.     @pyqtSlot()

  1901.     def slot_transportStop(self):

  1902.         if self.host.isPlugin or not self.host.is_engine_running():

  1903.             return

  1904. 

  1905.         self.host.transport_pause()

  1906.         self.host.transport_relocate(0)

  1907. 

  1908.         self.refreshTransport()

  1909. 

  1910.     @pyqtSlot()

  1911.     def slot_transportBackwards(self):

  1912.         if self.host.isPlugin or not self.host.is_engine_running():

  1913.             return

  1914. 

  1915.         newFrame = self.host.get_current_transport_frame() - 100000

  1916. 

  1917.         if newFrame < 0:

  1918.             newFrame = 0

  1919. 

  1920.         self.host.transport_relocate(newFrame)

  1921. 

  1922.     @pyqtSlot(float)

  1923.     def slot_transportBpmChanged(self, newValue):

  1924.         self.host.transport_bpm(newValue)

  1925. 

  1926.     @pyqtSlot()

  1927.     def slot_transportForwards(self):

  1928.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1929.             return

  1930. 

  1931.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1932.         self.host.transport_relocate(newFrame)

  1933. 

  1934.     @pyqtSlot(bool)

  1935.     def slot_transportJackEnabled(self, clicked):

  1936.         if not self.host.is_engine_running():

  1937.             return

  1938.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1939.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1940.                                     self.host.transportMode,

  1941.                                     self.host.transportExtra)

  1942. 

  1943.     @pyqtSlot(bool)

  1944.     def slot_transportLinkEnabled(self, clicked):

  1945.         if not self.host.is_engine_running():

  1946.             return

  1947.         extra = ":link:" if clicked else ""

  1948.         self.host.transportExtra = extra

  1949.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1950.                                     self.host.transportMode,

  1951.                                     self.host.transportExtra)

  1952. 

  1953.     # --------------------------------------------------------------------------------------------------------

  1954.     # Other

  1955. 

  1956.     @pyqtSlot(bool)

  1957.     def slot_xrunClear(self):

  1958.         self.host.clear_engine_xruns()

  1959. 

  1960.     # --------------------------------------------------------------------------------------------------------

  1961.     # Canvas scrollbars

  1962. 

  1963.     @pyqtSlot(int)

  1964.     def slot_horizontalScrollBarChanged(self, value):

  1965.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1966.         if maximum == 0:

  1967.             xp = 0

  1968.         else:

  1969.             xp = float(value) / maximum

  1970.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1971.         self.updateCanvasInitialPos()

  1972. 

  1973.     @pyqtSlot(int)

  1974.     def slot_verticalScrollBarChanged(self, value):

  1975.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1976.         if maximum == 0:

  1977.             yp = 0

  1978.         else:

  1979.             yp = float(value) / maximum

  1980.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1981.         self.updateCanvasInitialPos()

  1982. 

  1983.     # --------------------------------------------------------------------------------------------------------

  1984.     # Canvas keyboard

  1985. 

  1986.     @pyqtSlot(int)

  1987.     def slot_noteOn(self, note):

  1988.         for pluginId in self.fSelectedPlugins:

  1989.             self.host.send_midi_note(pluginId, 0, note, 100)

  1990. 

  1991.             pedit = self.getPluginEditDialog(pluginId)

  1992.             pedit.noteOn(0, note, 100)

  1993. 

  1994.     @pyqtSlot(int)

  1995.     def slot_noteOff(self, note):

  1996.         for pluginId in self.fSelectedPlugins:

  1997.             self.host.send_midi_note(pluginId, 0, note, 0)

  1998. 

  1999.             pedit = self.getPluginEditDialog(pluginId)

  2000.             pedit.noteOff(0, note)

  2001. 

  2002.     # --------------------------------------------------------------------------------------------------------

  2003.     # Canvas keyboard (host callbacks)

  2004. 

  2005.     @pyqtSlot(int, int, int, int)

  2006.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2007.         if pluginId in self.fSelectedPlugins:

  2008.             self.ui.keyboard.sendNoteOn(note, False)

  2009. 

  2010.     @pyqtSlot(int, int, int)

  2011.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2012.         if pluginId in self.fSelectedPlugins:

  2013.             self.ui.keyboard.sendNoteOff(note, False)

  2014. 

  2015.     # --------------------------------------------------------------------------------------------------------

  2016. 

  2017.     @pyqtSlot(int)

  2018.     def slot_handleUpdateCallback(self, pluginId):

  2019.         pitem = self.getPluginItem(pluginId)

  2020. 

  2021.         if pitem is None:

  2022.             return

  2023. 

  2024.         wasCompacted = pitem.isCompacted()

  2025.         isCompacted  = wasCompacted

  2026. 

  2027.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2028.         if not check:

  2029.             return

  2030.         isCompacted = bool(check == "true")

  2031. 

  2032.         if wasCompacted == isCompacted:

  2033.             return

  2034. 

  2035.         pitem.recreateWidget(True)

  2036. 

  2037.     # --------------------------------------------------------------------------------------------------------

  2038.     # MiniCanvas stuff

  2039. 

  2040.     @pyqtSlot()

  2041.     def slot_miniCanvasCheckAll(self):

  2042.         self.slot_miniCanvasCheckSize()

  2043.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2044.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2045. 

  2046.     @pyqtSlot()

  2047.     def slot_miniCanvasCheckSize(self):

  2048.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2049.             return

  2050. 

  2051.         currentIndex = self.ui.tabWidget.currentIndex()

  2052. 

  2053.         if currentIndex == 1:

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

  2055.             height = self.ui.graphicsView.height()

  2056.         else:

  2057.             self.ui.tabWidget.blockSignals(True)

  2058.             self.ui.tabWidget.setCurrentIndex(1)

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

  2060.             height = self.ui.graphicsView.height()

  2061.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2062.             self.ui.tabWidget.blockSignals(False)

  2063. 

  2064.         self.scene.updateLimits()

  2065. 

  2066.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2067. 

  2068.     @pyqtSlot(float, float)

  2069.     def slot_miniCanvasMoved(self, xp, yp):

  2070.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2071.         vsb = self.ui.graphicsView.verticalScrollBar()

  2072.         hsb.setValue(xp * hsb.maximum())

  2073.         vsb.setValue(yp * vsb.maximum())

  2074.         self.updateCanvasInitialPos()

  2075. 

  2076.     # --------------------------------------------------------------------------------------------------------

  2077.     # Timers

  2078. 

  2079.     def startTimers(self):

  2080.         if self.fIdleTimerFast == 0:

  2081.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2082. 

  2083.         if self.fIdleTimerSlow == 0:

  2084.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2085. 

  2086.     def restartTimersIfNeeded(self):

  2087.         if self.fIdleTimerFast != 0:

  2088.             self.killTimer(self.fIdleTimerFast)

  2089.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2090. 

  2091.         if self.fIdleTimerSlow != 0:

  2092.             self.killTimer(self.fIdleTimerSlow)

  2093.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2094. 

  2095.     def killTimers(self):

  2096.         if self.fIdleTimerFast != 0:

  2097.             self.killTimer(self.fIdleTimerFast)

  2098.             self.fIdleTimerFast = 0

  2099. 

  2100.         if self.fIdleTimerSlow != 0:

  2101.             self.killTimer(self.fIdleTimerSlow)

  2102.             self.fIdleTimerSlow = 0

  2103. 

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

  2105.     # Misc

  2106. 

  2107.     @pyqtSlot(int)

  2108.     def slot_tabChanged(self, index):

  2109.         if index != 1:

  2110.             return

  2111. 

  2112.         self.ui.graphicsView.setFocus()

  2113. 

  2114.     @pyqtSlot(int)

  2115.     def slot_handleReloadAllCallback(self, pluginId):

  2116.         if pluginId >= self.fPluginCount:

  2117.             return

  2118. 

  2119.         pitem = self.fPluginList[pluginId]

  2120.         if pitem is None:

  2121.             return

  2122. 

  2123.         pitem.recreateWidget()

  2124. 

  2125.     # --------------------------------------------------------------------------------------------------------

  2126. 

  2127.     @pyqtSlot(int, int, str)

  2128.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2129.         if opcode == NSM_CALLBACK_INIT:

  2130.             return

  2131. 

  2132.         # Error

  2133.         elif opcode == NSM_CALLBACK_ERROR:

  2134.             pass

  2135. 

  2136.         # Reply

  2137.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2138.             self.fFirstEngineInit    = False

  2139.             self.fSessionManagerName = valueStr

  2140.             self.setProperWindowTitle()

  2141. 

  2142.         # Open

  2143.         elif opcode == NSM_CALLBACK_OPEN:

  2144.             self.fClientName      = os.path.basename(valueStr)

  2145.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2146.             self.setProperWindowTitle()

  2147. 

  2148.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2149.             self.slot_engineStop(True)

  2150.             return

  2151. 

  2152.         # Save

  2153.         elif opcode == NSM_CALLBACK_SAVE:

  2154.             self.saveProjectNow()

  2155. 

  2156.         # Session is Loaded

  2157.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2158.             pass

  2159. 

  2160.         # Show Optional Gui

  2161.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2162.             self.show()

  2163. 

  2164.         # Hide Optional Gui

  2165.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2166.             self.hide()

  2167. 

  2168.         self.host.nsm_ready(opcode)

  2169. 

  2170.     # --------------------------------------------------------------------------------------------------------

  2171. 

  2172.     def fixLogText(self, text):

  2173.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2174. 

  2175.     @pyqtSlot(int, int, int, int, float, str)

  2176.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2177.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2178. 

  2179.     @pyqtSlot(str)

  2180.     def slot_handleInfoCallback(self, info):

  2181.         QMessageBox.information(self, "Information", info)

  2182. 

  2183.     @pyqtSlot(str)

  2184.     def slot_handleErrorCallback(self, error):

  2185.         QMessageBox.critical(self, "Error", error)

  2186. 

  2187.     @pyqtSlot()

  2188.     def slot_handleQuitCallback(self):

  2189.         self.fIsProjectLoading = False

  2190.         self.killTimers()

  2191.         self.removeAllPlugins()

  2192.         self.projectLoadingFinished()

  2193. 

  2194.     # --------------------------------------------------------------------------------------------------------

  2195. 

  2196.     @pyqtSlot()

  2197.     def slot_handleSIGUSR1(self):

  2198.         print("Got SIGUSR1 -> Saving project now")

  2199.         self.slot_fileSave()

  2200. 

  2201.     @pyqtSlot()

  2202.     def slot_handleSIGTERM(self):

  2203.         print("Got SIGTERM -> Closing now")

  2204.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2205.         self.slot_engineStop(True)

  2206. 

  2207.     # --------------------------------------------------------------------------------------------------------

  2208.     # Internal stuff

  2209. 

  2210.     def getExtraPtr(self, plugin):

  2211.         ptype = plugin['type']

  2212. 

  2213.         if ptype == PLUGIN_LADSPA:

  2214.             uniqueId = plugin['uniqueId']

  2215. 

  2216.             self.maybeLoadRDFs()

  2217. 

  2218.             for rdfItem in self.fLadspaRdfList:

  2219.                 if rdfItem.UniqueID == uniqueId:

  2220.                     return pointer(rdfItem)

  2221. 

  2222.         elif ptype == PLUGIN_SF2:

  2223.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2224.                 return self._true

  2225. 

  2226.         return None

  2227. 

  2228.     def maybeLoadRDFs(self):

  2229.         if not self.fLadspaRdfNeedsUpdate:

  2230.             return

  2231. 

  2232.         self.fLadspaRdfNeedsUpdate = False

  2233.         self.fLadspaRdfList = []

  2234. 

  2235.         if not haveLRDF:

  2236.             return

  2237. 

  2238.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2239.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2240. 

  2241.         if os.path.exists(frLadspaFile):

  2242.             frLadspa = open(frLadspaFile, 'r')

  2243. 

  2244.             try:

  2245.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2246.             except:

  2247.                 pass

  2248. 

  2249.             frLadspa.close()

  2250. 

  2251.     # --------------------------------------------------------------------------------------------------------

  2252. 

  2253.     def getPluginCount(self):

  2254.         return self.fPluginCount

  2255. 

  2256.     def getPluginItem(self, pluginId):

  2257.         if pluginId >= self.fPluginCount:

  2258.             return None

  2259. 

  2260.         pitem = self.fPluginList[pluginId]

  2261.         if pitem is None:

  2262.             return None

  2263.         #if False:

  2264.             #return CarlaRackItem(self, 0, False)

  2265. 

  2266.         return pitem

  2267. 

  2268.     def getPluginEditDialog(self, pluginId):

  2269.         if pluginId >= self.fPluginCount:

  2270.             return None

  2271. 

  2272.         pitem = self.fPluginList[pluginId]

  2273.         if pitem is None:

  2274.             return None

  2275.         if False:

  2276.             return PluginEdit(self, self.host, 0)

  2277. 

  2278.         return pitem.getEditDialog()

  2279. 

  2280.     def getPluginSlotWidget(self, pluginId):

  2281.         if pluginId >= self.fPluginCount:

  2282.             return None

  2283. 

  2284.         pitem = self.fPluginList[pluginId]

  2285.         if pitem is None:

  2286.             return None

  2287.         #if False:

  2288.             #return AbstractPluginSlot()

  2289. 

  2290.         return pitem.getWidget()

  2291. 

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

  2293. 

  2294.     def waitForPendingEvents(self):

  2295.         pass

  2296. 

  2297.     # --------------------------------------------------------------------------------------------------------

  2298.     # show/hide event

  2299. 

  2300.     def showEvent(self, event):

  2301.         self.getAndRefreshRuntimeInfo()

  2302.         self.refreshTransport(True)

  2303.         QMainWindow.showEvent(self, event)

  2304. 

  2305.         # set our gui as parent for all plugins UIs

  2306.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2307.             if MACOS:

  2308.                 nsViewPtr = int(self.winId())

  2309.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2310.             else:

  2311.                 winIdStr = "%x" % int(self.winId())

  2312.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2313. 

  2314.     def hideEvent(self, event):

  2315.         # disable parent

  2316.         if not (self.host.isControl or self.host.isPlugin):

  2317.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2318. 

  2319.         QMainWindow.hideEvent(self, event)

  2320. 

  2321.     # --------------------------------------------------------------------------------------------------------

  2322.     # resize event

  2323. 

  2324.     def resizeEvent(self, event):

  2325.         QMainWindow.resizeEvent(self, event)

  2326. 

  2327.         if self.fWithCanvas:

  2328.             self.slot_miniCanvasCheckSize()

  2329. 

  2330.     # --------------------------------------------------------------------------------------------------------

  2331.     # timer event

  2332. 

  2333.     def refreshRuntimeInfo(self, load, xruns):

  2334.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2335.         txt2 = "" if (xruns == 1) else "s"

  2336.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2337.         self.ui.pb_dsp_load.setValue(int(load))

  2338. 

  2339.     def getAndRefreshRuntimeInfo(self):

  2340.         if not self.isVisible():

  2341.             return

  2342.         if not self.host.is_engine_running():

  2343.             return

  2344.         info = self.host.get_runtime_engine_info()

  2345.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2346. 

  2347.     def idleFast(self):

  2348.         self.host.engine_idle()

  2349.         self.refreshTransport()

  2350. 

  2351.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2352.             return

  2353. 

  2354.         for pitem in self.fPluginList:

  2355.             if pitem is None:

  2356.                 break

  2357. 

  2358.             pitem.getWidget().idleFast()

  2359. 

  2360.         for pluginId in self.fSelectedPlugins:

  2361.             self.fPeaksCleared = False

  2362.             if self.ui.peak_in.isVisible():

  2363.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2364.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2365.             if self.ui.peak_out.isVisible():

  2366.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2367.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2368.             return

  2369. 

  2370.         if self.fPeaksCleared:

  2371.             return

  2372. 

  2373.         self.fPeaksCleared = True

  2374.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2375.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2376.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2377.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2378. 

  2379.     def idleSlow(self):

  2380.         self.getAndRefreshRuntimeInfo()

  2381. 

  2382.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2383.             return

  2384. 

  2385.         for pitem in self.fPluginList:

  2386.             if pitem is None:

  2387.                 break

  2388. 

  2389.             pitem.getWidget().idleSlow()

  2390. 

  2391.     def timerEvent(self, event):

  2392.         if event.timerId() == self.fIdleTimerFast:

  2393.             self.idleFast()

  2394. 

  2395.         elif event.timerId() == self.fIdleTimerSlow:

  2396.             self.idleSlow()

  2397. 

  2398.         QMainWindow.timerEvent(self, event)

  2399. 

  2400.     # --------------------------------------------------------------------------------------------------------

  2401.     # color/style change event

  2402. 

  2403.     def changeEvent(self, event):

  2404.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2405.             self.updateStyle()

  2406.         QWidget.changeEvent(self, event)

  2407. 

  2408.     def updateStyle(self):

  2409.         # Rack padding images setup

  2410.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2411.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2412. 

  2413.         min_value = 0.07

  2414. 

  2415.         if PYQT_VERSION >= 0x50600:

  2416.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2417.         else:

  2418.             value_fix = 1.5

  2419. 

  2420.         bg_color = self.ui.rack.palette().window().color()

  2421.         bg_value = 1.0 - bg_color.blackF()

  2422.         if bg_value != 0.0 and bg_value < min_value:

  2423.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2424.         else:

  2425.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2426. 

  2427.         painter = QPainter()

  2428.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2429. 

  2430.         painter.begin(rack_imgL)

  2431.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2432.         painter.setBrush(pad_color)

  2433.         painter.drawRect(fillRect)

  2434.         painter.end()

  2435.         rack_pixmapL = QPixmap(rack_imgL)

  2436.         self.imgL_palette = QPalette()

  2437.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2438.         self.ui.pad_left.setPalette(self.imgL_palette)

  2439.         self.ui.pad_left.setAutoFillBackground(True)

  2440. 

  2441.         painter.begin(rack_imgR)

  2442.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2443.         painter.setBrush(pad_color)

  2444.         painter.drawRect(fillRect)

  2445.         painter.end()

  2446.         rack_pixmapR = QPixmap(rack_imgR)

  2447.         self.imgR_palette = QPalette()

  2448.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2449.         self.ui.pad_right.setPalette(self.imgR_palette)

  2450.         self.ui.pad_right.setAutoFillBackground(True)

  2451. 

  2452.     # --------------------------------------------------------------------------------------------------------

  2453.     # paint event

  2454. 

  2455.     #def paintEvent(self, event):

  2456.         #QMainWindow.paintEvent(self, event)

  2457. 

  2458.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2459.             #return

  2460. 

  2461.         #painter = QPainter(self)

  2462.         #painter.setBrush(QColor(36, 36, 36))

  2463.         #painter.setPen(QColor(62, 62, 62))

  2464.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2465. 

  2466.     # --------------------------------------------------------------------------------------------------------

  2467.     # close event

  2468. 

  2469.     def shouldIgnoreClose(self):

  2470.         if self.host.isControl or self.host.isPlugin:

  2471.             return False

  2472.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2473.             return False

  2474.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2475.             return QMessageBox.question(self, self.tr("Quit"),

  2476.                                               self.tr("Are you sure you want to quit Carla?"),

  2477.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2478.         return False

  2479. 

  2480.     def closeEvent(self, event):

  2481.         if self.shouldIgnoreClose():

  2482.             event.ignore()

  2483.             return

  2484. 

  2485.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2486.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2487.             self.fMacClosingHelper = False

  2488.             event.ignore()

  2489. 

  2490.             for i in reversed(range(self.fPluginCount)):

  2491.                 self.host.show_custom_ui(i, False)

  2492. 

  2493.             QTimer.singleShot(100, self.close)

  2494.             return

  2495. 

  2496.         self.killTimers()

  2497.         self.saveSettings()

  2498. 

  2499.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2500.             if not self.slot_engineStop(True):

  2501.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2502.                 event.ignore()

  2503.                 return

  2504. 

  2505.         QMainWindow.closeEvent(self, event)

  2506. 

  2507. # ------------------------------------------------------------------------------------------------

  2508. # Canvas callback

  2509. 

  2510. def canvasCallback(action, value1, value2, valueStr):

  2511.     host = gCarla.gui.host

  2512. 

  2513.     if action == patchcanvas.ACTION_GROUP_INFO:

  2514.         pass

  2515. 

  2516.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2517.         pass

  2518. 

  2519.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2520.         groupId = value1

  2521.         patchcanvas.splitGroup(groupId)

  2522.         gCarla.gui.updateMiniCanvasLater()

  2523. 

  2524.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2525.         groupId = value1

  2526.         patchcanvas.joinGroup(groupId)

  2527.         gCarla.gui.updateMiniCanvasLater()

  2528. 

  2529.     elif action == patchcanvas.ACTION_PORT_INFO:

  2530.         pass

  2531. 

  2532.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2533.         pass

  2534. 

  2535.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2536.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2537. 

  2538.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2539.             print("Connection failed:", host.get_last_error())

  2540. 

  2541.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2542.         connectionId = value1

  2543. 

  2544.         if not host.patchbay_disconnect(connectionId):

  2545.             print("Disconnect failed:", host.get_last_error())

  2546. 

  2547.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2548.         pluginId = value1

  2549. 

  2550.         if not host.clone_plugin(pluginId):

  2551.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2552.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2553. 

  2554.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2555.         pluginId = value1

  2556.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2557. 

  2558.         if pwidget is not None:

  2559.             pwidget.showEditDialog()

  2560. 

  2561.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2562.         pluginId = value1

  2563.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2564. 

  2565.         if pwidget is not None:

  2566.             pwidget.showRenameDialog()

  2567. 

  2568.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2569.         pluginId = value1

  2570.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2571. 

  2572.         if pwidget is not None:

  2573.             pwidget.showReplaceDialog()

  2574. 

  2575.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2576.         pluginId = value1

  2577. 

  2578.         if not host.remove_plugin(pluginId):

  2579.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2580.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2581. 

  2582.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2583.         pluginId = value1

  2584.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2585. 

  2586.         if pwidget is not None:

  2587.             pwidget.showCustomUI()

  2588. 

  2589.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2590.         gCarla.gui.showPluginActionsMenu()

  2591. 

  2592. # ------------------------------------------------------------------------------------------------------------

  2593. # Engine callback

  2594. 

  2595. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2596.     # kdevelop likes this :)

  2597.     if False: host = CarlaHostNull()

  2598. 

  2599.     valueStr = charPtrToString(valueStr)

  2600. 

  2601.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2602.         host.processMode   = value1

  2603.         host.transportMode = value2

  2604.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2605.         host.processMode   = value1

  2606.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2607.         host.transportMode  = value1

  2608.         host.transportExtra = valueStr

  2609. 

  2610.     if action == ENGINE_CALLBACK_DEBUG:

  2611.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2612.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2613.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2614.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2615.         host.PluginRemovedCallback.emit(pluginId)

  2616.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2617.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2618.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2619.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2620.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2621.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2622.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2623.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2624.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2625.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2626.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2627.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2628.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2629.         host.ProgramChangedCallback.emit(pluginId, value1)

  2630.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2631.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2632.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2633.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2634.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2635.         host.UiStateChangedCallback.emit(pluginId, value1)

  2636.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2637.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2638.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2639.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2640.     elif action == ENGINE_CALLBACK_UPDATE:

  2641.         host.UpdateCallback.emit(pluginId)

  2642.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2643.         host.ReloadInfoCallback.emit(pluginId)

  2644.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2645.         host.ReloadParametersCallback.emit(pluginId)

  2646.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2647.         host.ReloadProgramsCallback.emit(pluginId)

  2648.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2649.         host.ReloadAllCallback.emit(pluginId)

  2650.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2651.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2652.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2653.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2654.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2655.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2656.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2657.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2658.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2659.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2660.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2661.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2662.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2663.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2664.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2665.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2666.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2667.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2668.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2669.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2670.         host.EngineStartedCallback.emit(value1, value2, value3, valuef, valueStr)

  2671.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2672.         host.EngineStoppedCallback.emit()

  2673.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2674.         host.ProcessModeChangedCallback.emit(value1)

  2675.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2676.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2677.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2678.         host.BufferSizeChangedCallback.emit(value1)

  2679.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2680.         host.SampleRateChangedCallback.emit(valuef)

  2681.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2682.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2683.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2684.         host.ProjectLoadFinishedCallback.emit()

  2685.     elif action == ENGINE_CALLBACK_NSM:

  2686.         host.NSMCallback.emit(value1, value2, valueStr)

  2687.     elif action == ENGINE_CALLBACK_IDLE:

  2688.         QApplication.processEvents()

  2689.     elif action == ENGINE_CALLBACK_INFO:

  2690.         host.InfoCallback.emit(valueStr)

  2691.     elif action == ENGINE_CALLBACK_ERROR:

  2692.         host.ErrorCallback.emit(valueStr)

  2693.     elif action == ENGINE_CALLBACK_QUIT:

  2694.         host.QuitCallback.emit()

  2695. 

  2696. # ------------------------------------------------------------------------------------------------------------

  2697. # File callback

  2698. 

  2699. def fileCallback(ptr, action, isDir, title, filter):

  2700.     title  = charPtrToString(title)

  2701.     filter = charPtrToString(filter)

  2702. 

  2703.     if action == FILE_CALLBACK_OPEN:

  2704.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2705.     elif action == FILE_CALLBACK_SAVE:

  2706.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2707.     else:

  2708.         ret, ok = ("", "")

  2709. 

  2710.     # FIXME use ok value, test if it works as expected

  2711.     if not ret:

  2712.         return None

  2713. 

  2714.     # FIXME

  2715.     global fileRet

  2716.     fileRet = c_char_p(ret.encode("utf-8"))

  2717.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2718.     return retval.contents.value

  2719. 

  2720. # ------------------------------------------------------------------------------------------------------------

  2721. # Init host

  2722. 

  2723. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2724.     pathBinaries, pathResources = getPaths(libPrefix)

  2725. 

  2726.     # --------------------------------------------------------------------------------------------------------

  2727.     # Check if we should open main lib as local or global

  2728. 

  2729.     settings = QSettings("falkTX", "Carla2")

  2730. 

  2731.     try:

  2732.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2733.     except:

  2734.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2735. 

  2736.     # --------------------------------------------------------------------------------------------------------

  2737.     # Fail if binary dir is not found

  2738. 

  2739.     if not os.path.exists(pathBinaries):

  2740.         if failError:

  2741.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2742.             sys.exit(1)

  2743.         return

  2744. 

  2745.     # --------------------------------------------------------------------------------------------------------

  2746.     # Set Carla library name

  2747. 

  2748.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2749.     libname   = os.path.join(pathBinaries, libname)

  2750.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2751. 

  2752.     # --------------------------------------------------------------------------------------------------------

  2753.     # Print info

  2754. 

  2755.     print("Carla %s started, status:" % VERSION)

  2756.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2757.     print("  Qt version:     %s" % qVersion())

  2758.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2759.     print("  Binary dir:     %s" % pathBinaries)

  2760.     print("  Resources dir:  %s" % pathResources)

  2761. 

  2762.     # --------------------------------------------------------------------------------------------------------

  2763.     # Init host

  2764. 

  2765.     if failError:

  2766.         # no try

  2767.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2768.     else:

  2769.         try:

  2770.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2771.         except:

  2772.             host = CarlaHostQtNull()

  2773. 

  2774.     host.isControl = isControl

  2775.     host.isPlugin  = isPlugin

  2776. 

  2777.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2778.     host.set_file_callback(fileCallback)

  2779. 

  2780.     # If it's a plugin the paths are already set

  2781.     if not isPlugin:

  2782.         host.pathBinaries  = pathBinaries

  2783.         host.pathResources = pathResources

  2784.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2785.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2786. 

  2787.         if not isControl:

  2788.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2789. 

  2790.     # --------------------------------------------------------------------------------------------------------

  2791.     # Init utils

  2792. 

  2793.     gCarla.utils = CarlaUtils(utilsname)

  2794.     gCarla.utils.set_process_name(os.path.basename(initName))

  2795. 

  2796.     try:

  2797.         sys.stdout.flush()

  2798.     except:

  2799.         pass

  2800. 

  2801.     sys.stdout = CarlaPrint(False)

  2802.     sys.stderr = CarlaPrint(True)

  2803.     sys.excepthook = sys_excepthook

  2804. 

  2805.     # --------------------------------------------------------------------------------------------------------

  2806.     # Done

  2807. 

  2808.     return host

  2809. 

  2810. # ------------------------------------------------------------------------------------------------------------

  2811. # Load host settings

  2812. 

  2813. def loadHostSettings(host):

  2814.     # kdevelop likes this :)

  2815.     if False: host = CarlaHostNull()

  2816. 

  2817.     settings = QSettings("falkTX", "Carla2")

  2818. 

  2819.     try:

  2820.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2821.     except:

  2822.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2823. 

  2824.     try:

  2825.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2826.     except:

  2827.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2828. 

  2829.     try:

  2830.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2831.     except:

  2832.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2833. 

  2834.     try:

  2835.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2836.     except:

  2837.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2838. 

  2839.     try:

  2840.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2841.     except:

  2842.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2843. 

  2844.     try:

  2845.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2846.     except:

  2847.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2848. 

  2849.     try:

  2850.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2851.     except:

  2852.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2853. 

  2854.     try:

  2855.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2856.     except:

  2857.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2858. 

  2859.     try:

  2860.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2861.     except:

  2862.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2863. 

  2864.     try:

  2865.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2866.     except:

  2867.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2868. 

  2869.     try:

  2870.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2871.     except:

  2872.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2873. 

  2874.     try:

  2875.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2876.     except:

  2877.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2878. 

  2879.     try:

  2880.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2881.     except:

  2882.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2883. 

  2884.     if host.isPlugin:

  2885.         return

  2886. 

  2887.     try:

  2888.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  2889.     except:

  2890.         host.transportExtra = ""

  2891. 

  2892.     # enums

  2893.     if host.audioDriverForced is None:

  2894.         try:

  2895.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2896.         except:

  2897.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2898. 

  2899.     if not host.processModeForced:

  2900.         try:

  2901.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2902.         except:

  2903.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2904. 

  2905.     host.nextProcessMode = host.processMode

  2906. 

  2907.     # --------------------------------------------------------------------------------------------------------

  2908.     # fix things if needed

  2909. 

  2910.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  2911.         if LADISH_APP_NAME:

  2912.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2913.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2914. 

  2915.         else:

  2916.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  2917. 

  2918.     if gCarla.nogui:

  2919.         host.showLogs = False

  2920. 

  2921.     # --------------------------------------------------------------------------------------------------------

  2922.     # run headless host now if nogui option enabled

  2923. 

  2924.     if gCarla.nogui:

  2925.         runHostWithoutUI(host)

  2926. 

  2927. # ------------------------------------------------------------------------------------------------------------

  2928. # Set host settings

  2929. 

  2930. def setHostSettings(host):

  2931.     # kdevelop likes this :)

  2932.     if False: host = CarlaHostNull()

  2933. 

  2934.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2935.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2936.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2937.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2938.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2939.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2940.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2941. 

  2942.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2943.         return

  2944. 

  2945.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2946.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  2947.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2948. 

  2949. # ------------------------------------------------------------------------------------------------------------

  2950. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2951. 

  2952. def setEngineSettings(host):

  2953.     # kdevelop likes this :)

  2954.     if False: host = CarlaHostNull()

  2955. 

  2956.     # --------------------------------------------------------------------------------------------------------

  2957.     # do nothing if control

  2958. 

  2959.     if host.isControl:

  2960.         return "Control"

  2961. 

  2962.     # --------------------------------------------------------------------------------------------------------

  2963. 

  2964.     settings = QSettings("falkTX", "Carla2")

  2965. 

  2966.     # --------------------------------------------------------------------------------------------------------

  2967.     # main settings

  2968. 

  2969.     setHostSettings(host)

  2970. 

  2971.     # --------------------------------------------------------------------------------------------------------

  2972.     # plugin paths

  2973. 

  2974.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2975.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2976.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2977.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2978.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  2979.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2980.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2981. 

  2982.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2983.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2984.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2985.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2986.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  2987.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2988.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2989. 

  2990.     # --------------------------------------------------------------------------------------------------------

  2991.     # don't continue if plugin

  2992. 

  2993.     if host.isPlugin:

  2994.         return "Plugin"

  2995. 

  2996.     # --------------------------------------------------------------------------------------------------------

  2997.     # osc settings

  2998. 

  2999.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3000. 

  3001.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3002.         portNumTCP = -1

  3003.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3004.         portNumTCP = 0

  3005.     else:

  3006.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3007. 

  3008.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3009.         portNumUDP = -1

  3010.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3011.         portNumUDP = 0

  3012.     else:

  3013.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3014. 

  3015.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3016.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3017.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3018. 

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

  3020.     # wine settings

  3021. 

  3022.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3023.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3024.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3025.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3026.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3027.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3028. 

  3029.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3030.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3031.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3032.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3033.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3034.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3035. 

  3036.     # --------------------------------------------------------------------------------------------------------

  3037.     # driver and device settings

  3038. 

  3039.     # driver name

  3040.     if host.audioDriverForced is not None:

  3041.         audioDriver = host.audioDriverForced

  3042.     else:

  3043.         try:

  3044.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3045.         except:

  3046.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3047. 

  3048.     # driver options

  3049.     try:

  3050.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3051.     except:

  3052.         audioDevice = ""

  3053. 

  3054.     try:

  3055.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3056.     except:

  3057.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3058. 

  3059.     try:

  3060.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3061.     except:

  3062.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3063. 

  3064.     try:

  3065.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3066.     except:

  3067.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3068. 

  3069.     # Only setup audio things if engine is not running

  3070.     if not host.is_engine_running():

  3071.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3072. 

  3073.         if not audioDriver.startswith("JACK"):

  3074.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3075.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3076.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3077. 

  3078.     # --------------------------------------------------------------------------------------------------------

  3079.     # fix things if needed

  3080. 

  3081.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3082.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3083.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3084. 

  3085.     # --------------------------------------------------------------------------------------------------------

  3086.     # return selected driver name

  3087. 

  3088.     return audioDriver

  3089. 

  3090. # ------------------------------------------------------------------------------------------------------------

  3091. # Run Carla without showing UI

  3092. 

  3093. def runHostWithoutUI(host):

  3094.     # kdevelop likes this :)

  3095.     if False: host = CarlaHostNull()

  3096. 

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

  3098.     # Some initial checks

  3099. 

  3100.     if not gCarla.nogui:

  3101.         return

  3102. 

  3103.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3104. 

  3105.     if not projectFile:

  3106.         print("Carla no-gui mode can only be used together with a project file.")

  3107.         sys.exit(1)

  3108. 

  3109.     # --------------------------------------------------------------------------------------------------------

  3110.     # Additional imports

  3111. 

  3112.     from time import sleep

  3113. 

  3114.     # --------------------------------------------------------------------------------------------------------

  3115.     # Init engine

  3116. 

  3117.     audioDriver = setEngineSettings(host)

  3118.     if not host.engine_init(audioDriver, "Carla"):

  3119.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3120.         sys.exit(1)

  3121. 

  3122.     if not host.load_project(projectFile):

  3123.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3124.         host.engine_close()

  3125.         sys.exit(1)

  3126. 

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

  3128.     # Idle

  3129. 

  3130.     print("Carla ready!")

  3131. 

  3132.     while host.is_engine_running() and not gCarla.term:

  3133.         host.engine_idle()

  3134.         sleep(0.0333) # 30 Hz

  3135. 

  3136.     # --------------------------------------------------------------------------------------------------------

  3137.     # Stop

  3138. 

  3139.     host.engine_close()

  3140.     sys.exit(0)

  3141. 

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