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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2016 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 (Config)

  21. 

  22. from carla_config import *

  23. 

  24. # ------------------------------------------------------------------------------------------------------------

  25. # Imports (Global)

  26. 

  27. if config_UseQt5:

  28.     from PyQt5.QtCore import qCritical, QFileInfo, QModelIndex, QPointF, QTimer

  29.     from PyQt5.QtGui import QImage, QPalette

  30.     from PyQt5.QtWidgets import QAction, QApplication, QFileSystemModel, QListWidgetItem, QMainWindow

  31. else:

  32.     from PyQt4.QtCore import qCritical, QFileInfo, QModelIndex, QPointF, QTimer

  33.     from PyQt4.QtGui import QImage, QPalette

  34.     from PyQt4.QtGui import QAction, QApplication, QFileSystemModel, QListWidgetItem, QMainWindow

  35. 

  36. # ------------------------------------------------------------------------------------------------------------

  37. # Imports (Custom)

  38. 

  39. import patchcanvas

  40. import ui_carla_host

  41. 

  42. from carla_app import *

  43. from carla_database import *

  44. from carla_settings import *

  45. from carla_utils import *

  46. from carla_widgets import *

  47. 

  48. from digitalpeakmeter import DigitalPeakMeter

  49. from pixmapkeyboard import PixmapKeyboardHArea

  50. 

  51. # ------------------------------------------------------------------------------------------------------------

  52. # Try Import OpenGL

  53. 

  54. try:

  55.     if config_UseQt5:

  56.         from PyQt5.QtOpenGL import QGLWidget

  57.     else:

  58.         from PyQt4.QtOpenGL import QGLWidget

  59.     hasGL = True

  60. except:

  61.     hasGL = False

  62. 

  63. # ------------------------------------------------------------------------------------------------------------

  64. # Session Management support

  65. 

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

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

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

  69. 

  70. # ------------------------------------------------------------------------------------------------------------

  71. # Carla Print class

  72. 

  73. class CarlaPrint:

  74.     def __init__(self, err):

  75.         self.err = err

  76. 

  77.     def flush(self):

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

  79. 

  80.     def write(self, string):

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

  82. 

  83. # ------------------------------------------------------------------------------------------------------------

  84. # Host Window

  85. 

  86. class HostWindow(QMainWindow):

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

  88.     # signals

  89.     SIGTERM = pyqtSignal()

  90.     SIGUSR1 = pyqtSignal()

  91. 

  92.     # --------------------------------------------------------------------------------------------------------

  93. 

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

  95.         QMainWindow.__init__(self, parent)

  96.         self.host = host

  97.         self.ui = ui_carla_host.Ui_CarlaHostW()

  98.         self.ui.setupUi(self)

  99.         gCarla.gui = self

  100. 

  101.         if False:

  102.             # kdevelop likes this :)

  103.             host = CarlaHostNull()

  104.             self.host = host

  105. 

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

  107. 

  108.         self.fParentOrSelf = parent or self

  109. 

  110.         # ----------------------------------------------------------------------------------------------------

  111.         # Internal stuff

  112. 

  113.         self.fIdleTimerFast = 0

  114.         self.fIdleTimerSlow = 0

  115. 

  116.         self.fLadspaRdfNeedsUpdate = True

  117.         self.fLadspaRdfList = []

  118. 

  119.         self.fPluginCount = 0

  120.         self.fPluginList  = []

  121. 

  122.         self.fProjectFilename  = ""

  123.         self.fIsProjectLoading = False

  124.         self.fCurrentlyRemovingAllPlugins = False

  125. 

  126.         self.fLastTransportBPM   = 0.0

  127.         self.fLastTransportFrame = 0

  128.         self.fLastTransportState = False

  129.         self.fSampleRate         = 0.0

  130. 

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

  132.         # 1 for close carla, 2 for load project

  133.         self.fCustomStopAction = 0

  134. 

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

  136.         self.fFirstEngineInit = True

  137. 

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

  139.         self.fSavedSettings = {}

  140. 

  141.         if host.isControl:

  142.             self.fClientName         = "Carla-Control"

  143.             self.fSessionManagerName = "Control"

  144.         elif host.isPlugin:

  145.             self.fClientName         = "Carla-Plugin"

  146.             self.fSessionManagerName = "Plugin"

  147.         elif LADISH_APP_NAME:

  148.             self.fClientName         = LADISH_APP_NAME

  149.             self.fSessionManagerName = "LADISH"

  150.         elif NSM_URL and host.nsmOK:

  151.             self.fClientName         = "Carla.tmp"

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

  153.         else:

  154.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  155.             self.fSessionManagerName = ""

  156. 

  157.         # ----------------------------------------------------------------------------------------------------

  158.         # Internal stuff (patchbay)

  159. 

  160.         self.fExportImage = QImage()

  161. 

  162.         self.fPeaksCleared = True

  163. 

  164.         self.fExternalPatchbay = False

  165.         self.fSelectedPlugins  = []

  166. 

  167.         self.fCanvasWidth  = 0

  168.         self.fCanvasHeight = 0

  169.         self.fMiniCanvasUpdateTimeout = 0

  170. 

  171.         self.fWithCanvas = withCanvas

  172. 

  173.         # ----------------------------------------------------------------------------------------------------

  174.         # Set up GUI (engine stopped)

  175. 

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

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

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

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

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

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

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

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

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

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

  186. 

  187.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

  198.             else:

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

  200. 

  201.         else:

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

  203. 

  204.             if WINDOWS:

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

  206. 

  207.         if not self.host.isControl:

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

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

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

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

  212. 

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

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

  215. 

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

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

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

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

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

  221. 

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

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

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

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

  226. 

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

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

  229. 

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

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

  232. 

  233.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  251.             self.ui.miniCanvasPreview.hide()

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

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

  254. 

  255.             if host.isControl:

  256.                 self.ui.dockWidget.hide()

  257. 

  258.         # ----------------------------------------------------------------------------------------------------

  259.         # Set up GUI (disk)

  260. 

  261.         self.fDirModel = QFileSystemModel(self)

  262.         self.fDirModel.setRootPath(HOME)

  263.         self.fDirModel.setNameFilters(gCarla.utils.get_supported_file_extensions().split(";"))

  264. 

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

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

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

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

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

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

  271. 

  272.         # ----------------------------------------------------------------------------------------------------

  273.         # Set up GUI (transport)

  274. 

  275.         self.ui.l_transport_bbt.setMinimumWidth(QFontMetrics(self.ui.l_transport_bbt.font()).width("000|00|0000") + 3)

  276.         self.ui.l_transport_frame.setMinimumWidth(QFontMetrics(self.ui.l_transport_frame.font()).width("000'000'000") + 3)

  277.         self.ui.l_transport_time.setMinimumWidth(QFontMetrics(self.ui.l_transport_time.font()).width("00:00:00") + 3)

  278. 

  279.         if host.isPlugin:

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

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

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

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

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

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

  286. 

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

  288. 

  289.         # ----------------------------------------------------------------------------------------------------

  290.         # Set up GUI (rack)

  291. 

  292.         self.ui.listWidget.setHost(self.host)

  293. 

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

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

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

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

  298. 

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

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

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

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

  303. 

  304.         self.ui.rack.setStyleSheet("""

  305.           QLabel#pad_left {

  306.             background-image: url(:/bitmaps/rack_padding_left.png);

  307.             background-repeat: repeat-y;

  308.           }

  309.           QLabel#pad_right {

  310.             background-image: url(:/bitmaps/rack_padding_right.png);

  311.             background-repeat: repeat-y;

  312.           }

  313.           CarlaRackList#CarlaRackList {

  314.             background-color: black;

  315.           }

  316.         """)

  317. 

  318.         # ----------------------------------------------------------------------------------------------------

  319.         # Set up GUI (patchbay)

  320. 

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

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

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

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

  325. 

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

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

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

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

  330. 

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

  332.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  334. 

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

  336. 

  337.         self.ui.miniCanvasPreview.setRealParent(self)

  338. 

  339.         # ----------------------------------------------------------------------------------------------------

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

  341. 

  342.         if MACOS:

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

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

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

  346.             self.ui.act_help_about_juce.setMenuRole(QAction.ApplicationSpecificRole)

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

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

  349.             self.ui.menu_Help.hide()

  350. 

  351.         # ----------------------------------------------------------------------------------------------------

  352.         # Load Settings

  353. 

  354.         self.loadSettings(True)

  355. 

  356.         # ----------------------------------------------------------------------------------------------------

  357.         # Set-up Canvas

  358. 

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

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

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

  362. 

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

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

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

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

  367. 

  368.         self.setupCanvas()

  369. 

  370.         # ----------------------------------------------------------------------------------------------------

  371.         # Connect actions to functions

  372. 

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

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

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

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

  377. 

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

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

  380. 

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

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

  383.         self.ui.act_plugin_remove_all.triggered.connect(self.slot_pluginRemoveAll)

  384. 

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

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

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

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

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

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

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

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

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

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

  395. 

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

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

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

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

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

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

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

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

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

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

  406. 

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

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

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

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

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

  412. 

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

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

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

  416. 

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

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

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

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

  421. 

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

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

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

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

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

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

  428. 

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

  430. 

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

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

  433. 

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

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

  436. 

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

  438. 

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

  440. 

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

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

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

  444. 

  445.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  446.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  447. 

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

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

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

  451. 

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

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

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

  455. 

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

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

  458. 

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

  460. 

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

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

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

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

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

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

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

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

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

  470. 

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

  472. 

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

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

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

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

  477. 

  478.         # ----------------------------------------------------------------------------------------------------

  479.         # Final setup

  480. 

  481.         self.ui.text_logs.clear()

  482.         self.setProperWindowTitle()

  483. 

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

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

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

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

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

  489. 

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

  491.         if self.host.isPlugin:

  492.             self.startTimers()

  493. 

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

  495.         if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY and not host.isControl:

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

  497. 

  498.         # Load initial project file if set

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

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

  501. 

  502.             if projectFile:

  503.                 self.loadProjectLater(projectFile)

  504. 

  505.         # For NSM we wait for the open message

  506.         if NSM_URL and host.nsmOK:

  507.             host.nsm_ready(-1)

  508.             return

  509. 

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

  511. 

  512.     # --------------------------------------------------------------------------------------------------------

  513.     # Setup

  514. 

  515.     def compactPlugin(self, pluginId):

  516.         if pluginId > self.fPluginCount:

  517.             return

  518. 

  519.         pitem = self.fPluginList[pluginId]

  520. 

  521.         if pitem is None:

  522.             return

  523. 

  524.         pitem.recreateWidget(True)

  525. 

  526.     def setLoadRDFsNeeded(self):

  527.         self.fLadspaRdfNeedsUpdate = True

  528. 

  529.     def setProperWindowTitle(self):

  530.         title = self.fClientName

  531. 

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

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

  534.         if self.fSessionManagerName:

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

  536. 

  537.         self.setWindowTitle(title)

  538. 

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

  540.     # Files

  541. 

  542.     def loadProjectNow(self):

  543.         if not self.fProjectFilename:

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

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

  546.             return

  547. 

  548.         self.projectLoadingStarted()

  549.         self.fIsProjectLoading = True

  550. 

  551.         self.host.load_project(self.fProjectFilename)

  552. 

  553.         self.fIsProjectLoading = False

  554.         self.projectLoadingFinished()

  555. 

  556.     def loadProjectLater(self, filename):

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

  558.         self.setProperWindowTitle()

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

  560. 

  561.     def saveProjectNow(self):

  562.         if not self.fProjectFilename:

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

  564. 

  565.         self.host.save_project(self.fProjectFilename)

  566. 

  567.     def projectLoadingStarted(self):

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

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

  570. 

  571.     def projectLoadingFinished(self):

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

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

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

  575. 

  576.     # --------------------------------------------------------------------------------------------------------

  577.     # Files (menu actions)

  578. 

  579.     @pyqtSlot()

  580.     def slot_fileNew(self):

  581.         self.slot_pluginRemoveAll()

  582.         self.fProjectFilename = ""

  583.         self.setProperWindowTitle()

  584. 

  585.     @pyqtSlot()

  586.     def slot_fileOpen(self):

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

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

  589. 

  590.         if config_UseQt5:

  591.             filename = filename[0]

  592.         if not filename:

  593.             return

  594. 

  595.         newFile = True

  596. 

  597.         if self.fPluginCount > 0:

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

  599.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  601. 

  602.         if newFile:

  603.             self.slot_pluginRemoveAll()

  604.             self.fProjectFilename = filename

  605.             self.setProperWindowTitle()

  606.             self.loadProjectNow()

  607.         else:

  608.             filenameOld = self.fProjectFilename

  609.             self.fProjectFilename = filename

  610.             self.loadProjectNow()

  611.             self.fProjectFilename = filenameOld

  612. 

  613.     @pyqtSlot()

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

  615.         if self.fProjectFilename and not saveAs:

  616.             return self.saveProjectNow()

  617. 

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

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

  620. 

  621.         if config_UseQt5:

  622.             filename = filename[0]

  623.         if not filename:

  624.             return

  625. 

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

  627.             filename += ".carxp"

  628. 

  629.         if self.fProjectFilename != filename:

  630.             self.fProjectFilename = filename

  631.             self.setProperWindowTitle()

  632. 

  633.         self.saveProjectNow()

  634. 

  635.     @pyqtSlot()

  636.     def slot_fileSaveAs(self):

  637.         self.slot_fileSave(True)

  638. 

  639.     @pyqtSlot()

  640.     def slot_loadProjectNow(self):

  641.         self.loadProjectNow()

  642. 

  643.     # --------------------------------------------------------------------------------------------------------

  644.     # Engine (menu actions)

  645. 

  646.     @pyqtSlot()

  647.     def slot_engineStart(self):

  648.         audioDriver = setEngineSettings(self.host)

  649.         firstInit   = self.fFirstEngineInit

  650. 

  651.         self.fFirstEngineInit = False

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

  653. 

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

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

  656.             return

  657. 

  658.         elif firstInit:

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

  660.             return

  661. 

  662.         audioError = self.host.get_last_error()

  663. 

  664.         if audioError:

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

  666.         else:

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

  668. 

  669.     @pyqtSlot()

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

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

  672. 

  673.         if self.fPluginCount == 0:

  674.             self.engineStopFinal()

  675.             return True

  676. 

  677.         if not forced:

  678.             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"

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

  680.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  681.             if ask != QMessageBox.Yes:

  682.                 return False

  683. 

  684.         return self.slot_engineStopTryAgain()

  685. 

  686.     @pyqtSlot()

  687.     def slot_engineStopTryAgain(self):

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

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

  690.             return False

  691. 

  692.         self.engineStopFinal()

  693.         return True

  694. 

  695.     def engineStopFinal(self):

  696.         self.killTimers()

  697.         self.removeAllPlugins()

  698. 

  699.         if self.host.is_engine_running():

  700.             self.host.remove_all_plugins()

  701. 

  702.             if self.host.engine_close():

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

  704.             else:

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

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

  707. 

  708.         if self.fCustomStopAction == 1:

  709.             self.close()

  710.         elif self.fCustomStopAction == 2:

  711.             self.slot_engineStart()

  712.             self.loadProjectNow()

  713.             self.host.nsm_ready(2) # open

  714. 

  715.         self.fCustomStopAction = 0

  716. 

  717.     # --------------------------------------------------------------------------------------------------------

  718.     # Engine (host callbacks)

  719. 

  720.     @pyqtSlot(int, int, str)

  721.     def slot_handleEngineStartedCallback(self, processMode, transportMode, driverName):

  722.         self.fSampleRate = self.host.get_sample_rate()

  723. 

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

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

  726. 

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

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

  729. 

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

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

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

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

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

  735.         else:

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

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

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

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

  740. 

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

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

  743. 

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

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

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

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

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

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

  750. 

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

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

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

  754. 

  755.         self.refreshTransport(True)

  756. 

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

  758.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK")

  759. 

  760.         self.startTimers()

  761. 

  762.     @pyqtSlot()

  763.     def slot_handleEngineStoppedCallback(self):

  764.         patchcanvas.clear()

  765.         self.killTimers()

  766. 

  767.         # just in case

  768.         self.removeAllPlugins()

  769. 

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

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

  772. 

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

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

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

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

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

  778. 

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

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

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

  782. 

  783.     @pyqtSlot(float)

  784.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  785.         self.fSampleRate = newSampleRate

  786.         self.refreshTransport(True)

  787. 

  788.     # --------------------------------------------------------------------------------------------------------

  789.     # Plugins

  790. 

  791.     def removeAllPlugins(self):

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

  793.         patchcanvas.handleAllPluginsRemoved()

  794. 

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

  796.             pass

  797. 

  798.         self.clearSideStuff()

  799. 

  800.         for pitem in self.fPluginList:

  801.             if pitem is None:

  802.                 continue

  803. 

  804.             pitem.close()

  805.             del pitem

  806. 

  807.         self.fPluginCount = 0

  808.         self.fPluginList  = []

  809. 

  810.     # --------------------------------------------------------------------------------------------------------

  811.     # Plugins (menu actions)

  812. 

  813.     def showAddPluginDialog(self):

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

  815. 

  816.         if not dialog.exec_():

  817.             return

  818. 

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

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

  821.             return

  822. 

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

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

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

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

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

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

  829. 

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

  831. 

  832.     @pyqtSlot()

  833.     def showPluginActionsMenu(self):

  834.         menu = QMenu(self)

  835. 

  836.         if config_UseQt5:

  837.             menu.addSection("Plugins")

  838.         else:

  839.             # fake section

  840.             act  = menu.addAction("  Plugins")

  841.             font = act.font()

  842.             font.setBold(True)

  843.             act.setFont(font)

  844.             act.setEnabled(False)

  845.             menu.addSeparator()

  846. 

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

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

  849. 

  850.         if config_UseQt5:

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

  852.         else:

  853.             # fake space

  854.             act  = menu.addAction(" ")

  855.             font = act.font()

  856.             font.setBold(True)

  857.             font.setPointSize(font.pointSize()/2)

  858.             act.setEnabled(False)

  859. 

  860.             # fake section

  861.             act  = menu.addAction("  All plugins (macros)")

  862.             font = act.font()

  863.             font.setBold(True)

  864.             act.setFont(font)

  865.             act.setEnabled(False)

  866.             menu.addSeparator()

  867. 

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

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

  870.         menu.addSeparator()

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

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

  873.         menu.addSeparator()

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

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

  876.         menu.addSeparator()

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

  878.         menu.addSeparator()

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

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

  881. 

  882.         menu.exec_(QCursor.pos())

  883. 

  884.     @pyqtSlot()

  885.     def slot_pluginAdd(self):

  886.         data = self.showAddPluginDialog()

  887. 

  888.         if data is None:

  889.             return

  890. 

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

  892. 

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

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

  895. 

  896.     @pyqtSlot()

  897.     def slot_pluginRemoveAll(self):

  898.         if self.fPluginCount == 0:

  899.             return

  900. 

  901.         # FIXME - this is not working

  902.         # removing a plugin causes flicker, the rack-list becomes empty for some time

  903.         # this breaks the remove-all animation, so don't bother using it

  904.         if False and not self.host.isPlugin:

  905.             self.projectLoadingStarted()

  906. 

  907.             app = QApplication.instance()

  908.             app.processEvents()

  909. 

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

  911.                 self.host.remove_plugin(i)

  912.                 app.processEvents()

  913. 

  914.             self.projectLoadingFinished()

  915. 

  916.         self.fCurrentlyRemovingAllPlugins = True

  917.         ok = self.host.remove_all_plugins()

  918.         self.fCurrentlyRemovingAllPlugins = False

  919. 

  920.         if ok:

  921.             self.removeAllPlugins()

  922.         else:

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

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

  925. 

  926.         self.fCurrentlyRemovingAllPlugins = False

  927. 

  928.     # --------------------------------------------------------------------------------------------------------

  929.     # Plugins (macros)

  930. 

  931.     @pyqtSlot()

  932.     def slot_pluginsEnable(self):

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

  934.             return

  935. 

  936.         for pitem in self.fPluginList:

  937.             if pitem is None:

  938.                 break

  939. 

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

  941. 

  942.     @pyqtSlot()

  943.     def slot_pluginsDisable(self):

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

  945.             return

  946. 

  947.         for pitem in self.fPluginList:

  948.             if pitem is None:

  949.                 break

  950. 

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

  952. 

  953.     @pyqtSlot()

  954.     def slot_pluginsVolume100(self):

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

  956.             return

  957. 

  958.         for pitem in self.fPluginList:

  959.             if pitem is None:

  960.                 break

  961. 

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

  963. 

  964.     @pyqtSlot()

  965.     def slot_pluginsMute(self):

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

  967.             return

  968. 

  969.         for pitem in self.fPluginList:

  970.             if pitem is None:

  971.                 break

  972. 

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

  974. 

  975.     @pyqtSlot()

  976.     def slot_pluginsWet100(self):

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

  978.             return

  979. 

  980.         for pitem in self.fPluginList:

  981.             if pitem is None:

  982.                 break

  983. 

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

  985. 

  986.     @pyqtSlot()

  987.     def slot_pluginsBypass(self):

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

  989.             return

  990. 

  991.         for pitem in self.fPluginList:

  992.             if pitem is None:

  993.                 break

  994. 

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

  996. 

  997.     @pyqtSlot()

  998.     def slot_pluginsCenter(self):

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

  1000.             return

  1001. 

  1002.         for pitem in self.fPluginList:

  1003.             if pitem is None:

  1004.                 break

  1005. 

  1006.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1007.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1008.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1009. 

  1010.     @pyqtSlot()

  1011.     def slot_pluginsCompact(self):

  1012.         for pitem in self.fPluginList:

  1013.             if pitem is None:

  1014.                 break

  1015.             pitem.compact()

  1016. 

  1017.     @pyqtSlot()

  1018.     def slot_pluginsExpand(self):

  1019.         for pitem in self.fPluginList:

  1020.             if pitem is None:

  1021.                 break

  1022.             pitem.expand()

  1023. 

  1024.     # --------------------------------------------------------------------------------------------------------

  1025.     # Plugins (host callbacks)

  1026. 

  1027.     @pyqtSlot(int, str)

  1028.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1029.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1030. 

  1031.         self.fPluginList.append(pitem)

  1032.         self.fPluginCount += 1

  1033. 

  1034.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1035. 

  1036.     @pyqtSlot(int)

  1037.     def slot_handlePluginRemovedCallback(self, pluginId):

  1038.         patchcanvas.handlePluginRemoved(pluginId)

  1039. 

  1040.         if pluginId in self.fSelectedPlugins:

  1041.             self.clearSideStuff()

  1042. 

  1043.         pitem = self.getPluginItem(pluginId)

  1044. 

  1045.         self.fPluginCount -= 1

  1046.         self.fPluginList.pop(pluginId)

  1047.         self.ui.listWidget.takeItem(pluginId)

  1048. 

  1049.         if pitem is not None:

  1050.             pitem.close()

  1051.             del pitem

  1052. 

  1053.         # push all plugins 1 slot back

  1054.         for i in range(pluginId, self.fPluginCount):

  1055.             pitem = self.fPluginList[i]

  1056.             pitem.setPluginId(i)

  1057. 

  1058.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1059. 

  1060.     # --------------------------------------------------------------------------------------------------------

  1061.     # Canvas

  1062. 

  1063.     def clearSideStuff(self):

  1064.         self.scene.clearSelection()

  1065. 

  1066.         self.fSelectedPlugins = []

  1067. 

  1068.         self.ui.keyboard.allNotesOff(False)

  1069.         self.ui.scrollArea.setEnabled(False)

  1070. 

  1071.         self.fPeaksCleared = True

  1072.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1073.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1074.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1075.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1076. 

  1077.     def setupCanvas(self):

  1078.         pOptions = patchcanvas.options_t()

  1079.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1080.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1081.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1082.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1083.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1084.         pOptions.eyecandy          = self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]

  1085. 

  1086.         pFeatures = patchcanvas.features_t()

  1087.         pFeatures.group_info   = False

  1088.         pFeatures.group_rename = False

  1089.         pFeatures.port_info    = False

  1090.         pFeatures.port_rename  = False

  1091.         pFeatures.handle_group_pos = True

  1092. 

  1093.         patchcanvas.setOptions(pOptions)

  1094.         patchcanvas.setFeatures(pFeatures)

  1095.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1096. 

  1097.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1098. 

  1099.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1100.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1101.             self.fCanvasHeight = int(tryCanvasSize[1])

  1102.         else:

  1103.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1104.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1105. 

  1106.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1107.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1108.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1109. 

  1110.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1111.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1112. 

  1113.     def updateCanvasInitialPos(self):

  1114.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1115.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1116.         patchcanvas.setInitialPos(x, y)

  1117. 

  1118.     def updateMiniCanvasLater(self):

  1119.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1120. 

  1121.     # --------------------------------------------------------------------------------------------------------

  1122.     # Canvas (menu actions)

  1123. 

  1124.     @pyqtSlot()

  1125.     def slot_canvasShowInternal(self):

  1126.         self.fExternalPatchbay = False

  1127.         self.ui.act_canvas_show_internal.blockSignals(True)

  1128.         self.ui.act_canvas_show_external.blockSignals(True)

  1129.         self.ui.act_canvas_show_internal.setChecked(True)

  1130.         self.ui.act_canvas_show_external.setChecked(False)

  1131.         self.ui.act_canvas_show_internal.blockSignals(False)

  1132.         self.ui.act_canvas_show_external.blockSignals(False)

  1133.         self.slot_canvasRefresh()

  1134. 

  1135.     @pyqtSlot()

  1136.     def slot_canvasShowExternal(self):

  1137.         self.fExternalPatchbay = True

  1138.         self.ui.act_canvas_show_internal.blockSignals(True)

  1139.         self.ui.act_canvas_show_external.blockSignals(True)

  1140.         self.ui.act_canvas_show_internal.setChecked(False)

  1141.         self.ui.act_canvas_show_external.setChecked(True)

  1142.         self.ui.act_canvas_show_internal.blockSignals(False)

  1143.         self.ui.act_canvas_show_external.blockSignals(False)

  1144.         self.slot_canvasRefresh()

  1145. 

  1146.     @pyqtSlot()

  1147.     def slot_canvasArrange(self):

  1148.         patchcanvas.arrange()

  1149. 

  1150.     @pyqtSlot()

  1151.     def slot_canvasRefresh(self):

  1152.         patchcanvas.clear()

  1153. 

  1154.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1155.             return

  1156. 

  1157.         if self.host.is_engine_running():

  1158.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1159. 

  1160.         self.updateMiniCanvasLater()

  1161. 

  1162.     @pyqtSlot()

  1163.     def slot_canvasZoomFit(self):

  1164.         self.scene.zoom_fit()

  1165. 

  1166.     @pyqtSlot()

  1167.     def slot_canvasZoomIn(self):

  1168.         self.scene.zoom_in()

  1169. 

  1170.     @pyqtSlot()

  1171.     def slot_canvasZoomOut(self):

  1172.         self.scene.zoom_out()

  1173. 

  1174.     @pyqtSlot()

  1175.     def slot_canvasZoomReset(self):

  1176.         self.scene.zoom_reset()

  1177. 

  1178.     @pyqtSlot()

  1179.     def slot_canvasSaveImage(self):

  1180.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1181. 

  1182.         if config_UseQt5:

  1183.             newPath = newPath[0]

  1184.         if not newPath:

  1185.             return

  1186. 

  1187.         self.scene.clearSelection()

  1188. 

  1189.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1190.             imgFormat = "JPG"

  1191.         elif newPath.lower().endswith((".png",)):

  1192.             imgFormat = "PNG"

  1193.         else:

  1194.             # File-dialog may not auto-add the extension

  1195.             imgFormat = "PNG"

  1196.             newPath  += ".png"

  1197. 

  1198.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1199.         painter = QPainter(self.fExportImage)

  1200.         painter.save()

  1201.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1202.         painter.setRenderHint(QPainter.TextAntialiasing)

  1203.         self.scene.render(painter)

  1204.         self.fExportImage.save(newPath, imgFormat, 100)

  1205.         painter.restore()

  1206. 

  1207.     # --------------------------------------------------------------------------------------------------------

  1208.     # Canvas (canvas callbacks)

  1209. 

  1210.     @pyqtSlot(int, int, QPointF)

  1211.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1212.         self.updateMiniCanvasLater()

  1213. 

  1214.     @pyqtSlot(float)

  1215.     def slot_canvasScaleChanged(self, scale):

  1216.         self.ui.miniCanvasPreview.setViewScale(scale)

  1217. 

  1218.     @pyqtSlot(list)

  1219.     def slot_canvasPluginSelected(self, pluginList):

  1220.         self.ui.keyboard.allNotesOff(False)

  1221.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1222.         self.fSelectedPlugins = pluginList

  1223. 

  1224.     # --------------------------------------------------------------------------------------------------------

  1225.     # Canvas (host callbacks)

  1226. 

  1227.     @pyqtSlot(int, int, int, str)

  1228.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1229.         pcSplit = patchcanvas.SPLIT_UNDEF

  1230.         pcIcon  = patchcanvas.ICON_APPLICATION

  1231. 

  1232.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1233.             pcIcon = patchcanvas.ICON_PLUGIN

  1234.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1235.             pcIcon = patchcanvas.ICON_HARDWARE

  1236.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1237.             pass

  1238.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1239.             pcIcon = patchcanvas.ICON_DISTRHO

  1240.         elif clientIcon == PATCHBAY_ICON_FILE:

  1241.             pcIcon = patchcanvas.ICON_FILE

  1242. 

  1243.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1244. 

  1245.         self.updateMiniCanvasLater()

  1246. 

  1247.         if pluginId < 0:

  1248.             return

  1249.         if pluginId >= self.fPluginCount:

  1250.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1251.             return

  1252. 

  1253.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1254. 

  1255.     @pyqtSlot(int)

  1256.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1257.         patchcanvas.removeGroup(clientId)

  1258.         self.updateMiniCanvasLater()

  1259. 

  1260.     @pyqtSlot(int, str)

  1261.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1262.         patchcanvas.renameGroup(clientId, newClientName)

  1263.         self.updateMiniCanvasLater()

  1264. 

  1265.     @pyqtSlot(int, int, int)

  1266.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1267.         pcIcon = patchcanvas.ICON_APPLICATION

  1268. 

  1269.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1270.             pcIcon = patchcanvas.ICON_PLUGIN

  1271.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1272.             pcIcon = patchcanvas.ICON_HARDWARE

  1273.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1274.             pass

  1275.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1276.             pcIcon = patchcanvas.ICON_DISTRHO

  1277.         elif clientIcon == PATCHBAY_ICON_FILE:

  1278.             pcIcon = patchcanvas.ICON_FILE

  1279. 

  1280.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1281.         self.updateMiniCanvasLater()

  1282. 

  1283.         if pluginId < 0:

  1284.             return

  1285.         if pluginId >= self.fPluginCount:

  1286.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1287.             return

  1288. 

  1289.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1290. 

  1291.     @pyqtSlot(int, int, int, str)

  1292.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1293.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1294.             portMode = patchcanvas.PORT_MODE_INPUT

  1295.         else:

  1296.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1297. 

  1298.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1299.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1300.             isAlternate = False

  1301.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1302.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1303.             isAlternate = True

  1304.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1305.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1306.             isAlternate = False

  1307.         else:

  1308.             portType    = patchcanvas.PORT_TYPE_NULL

  1309.             isAlternate = False

  1310. 

  1311.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1312.         self.updateMiniCanvasLater()

  1313. 

  1314.     @pyqtSlot(int, int)

  1315.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1316.         patchcanvas.removePort(groupId, portId)

  1317.         self.updateMiniCanvasLater()

  1318. 

  1319.     @pyqtSlot(int, int, str)

  1320.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1321.         patchcanvas.renamePort(groupId, portId, newPortName)

  1322.         self.updateMiniCanvasLater()

  1323. 

  1324.     @pyqtSlot(int, int, int, int, int)

  1325.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1326.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1327.         self.updateMiniCanvasLater()

  1328. 

  1329.     @pyqtSlot(int, int, int)

  1330.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1331.         patchcanvas.disconnectPorts(connectionId)

  1332.         self.updateMiniCanvasLater()

  1333. 

  1334.     # --------------------------------------------------------------------------------------------------------

  1335.     # Settings

  1336. 

  1337.     def saveSettings(self):

  1338.         settings = QSettings()

  1339. 

  1340.         settings.setValue("Geometry", self.saveGeometry())

  1341. 

  1342.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1343. 

  1344.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1345. 

  1346.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1347. 

  1348.         diskFolders = []

  1349. 

  1350.         for i in range(self.ui.cb_disk.count()):

  1351.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1352. 

  1353.         settings.setValue("DiskFolders", diskFolders)

  1354. 

  1355.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1356.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1357.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1358.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1359. 

  1360.     def loadSettings(self, firstTime):

  1361.         settings = QSettings()

  1362. 

  1363.         if firstTime:

  1364.             self.restoreGeometry(settings.value("Geometry", b""))

  1365. 

  1366.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1367.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1368.             self.ui.toolBar.setEnabled(showToolbar)

  1369.             self.ui.toolBar.setVisible(showToolbar)

  1370. 

  1371.             #if settings.contains("SplitterState"):

  1372.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1373.             #else:

  1374.                 #self.ui.splitter.setSizes([210, 99999])

  1375. 

  1376.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1377.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1378.             self.ui.dockWidget.setEnabled(showSidePanel)

  1379.             self.ui.dockWidget.setVisible(showSidePanel)

  1380. 

  1381.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1382. 

  1383.             self.ui.cb_disk.setItemData(0, HOME)

  1384. 

  1385.             for i in range(len(diskFolders)):

  1386.                 if i == 0: continue

  1387.                 folder = diskFolders[i]

  1388.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1389. 

  1390.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1391.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1392. 

  1393.             showMeters = settings.value("ShowMeters", False, type=bool)

  1394.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1395.             self.ui.peak_in.setVisible(showMeters)

  1396.             self.ui.peak_out.setVisible(showMeters)

  1397. 

  1398.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1399.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1400.             self.ui.scrollArea.setVisible(showKeyboard)

  1401. 

  1402.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1403. 

  1404.         # TODO - complete this

  1405. 

  1406.         self.fSavedSettings = {

  1407.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1408.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1409.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1410.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1411.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1412.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1413.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1414.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1415.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=int),

  1416.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1417.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1418.             CARLA_KEY_CANVAS_HQ_ANTIALIASING :  settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1419.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1420.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black")

  1421.         }

  1422. 

  1423.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY] == patchcanvas.EYECANDY_FULL else 0

  1424. 

  1425.         setEngineSettings(self.host)

  1426.         self.restartTimersIfNeeded()

  1427. 

  1428.     # --------------------------------------------------------------------------------------------------------

  1429.     # Settings (helpers)

  1430. 

  1431.     @pyqtSlot()

  1432.     def slot_restoreCanvasScrollbarValues(self):

  1433.         settings = QSettings()

  1434.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1435.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1436. 

  1437.     # --------------------------------------------------------------------------------------------------------

  1438.     # Settings (menu actions)

  1439. 

  1440.     @pyqtSlot(bool)

  1441.     def slot_showSidePanel(self, yesNo):

  1442.         self.ui.dockWidget.setEnabled(yesNo)

  1443.         self.ui.dockWidget.setVisible(yesNo)

  1444. 

  1445.     @pyqtSlot(bool)

  1446.     def slot_showToolbar(self, yesNo):

  1447.         self.ui.toolBar.setEnabled(yesNo)

  1448.         self.ui.toolBar.setVisible(yesNo)

  1449. 

  1450.     @pyqtSlot(bool)

  1451.     def slot_showCanvasMeters(self, yesNo):

  1452.         self.ui.peak_in.setVisible(yesNo)

  1453.         self.ui.peak_out.setVisible(yesNo)

  1454.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1455. 

  1456.     @pyqtSlot(bool)

  1457.     def slot_showCanvasKeyboard(self, yesNo):

  1458.         self.ui.scrollArea.setVisible(yesNo)

  1459.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1460. 

  1461.     @pyqtSlot()

  1462.     def slot_configureCarla(self):

  1463.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1464.         if not dialog.exec_():

  1465.             return

  1466. 

  1467.         self.loadSettings(False)

  1468. 

  1469.         patchcanvas.clear()

  1470. 

  1471.         self.setupCanvas()

  1472.         self.slot_miniCanvasCheckAll()

  1473. 

  1474.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1475.             pass

  1476.         elif self.host.is_engine_running():

  1477.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1478. 

  1479.         for pitem in self.fPluginList:

  1480.             if pitem is None:

  1481.                 break

  1482.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1483.             pitem.recreateWidget()

  1484. 

  1485.     # --------------------------------------------------------------------------------------------------------

  1486.     # About (menu actions)

  1487. 

  1488.     @pyqtSlot()

  1489.     def slot_aboutCarla(self):

  1490.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1491. 

  1492.     @pyqtSlot()

  1493.     def slot_aboutJuce(self):

  1494.         JuceAboutW(self.fParentOrSelf).exec_()

  1495. 

  1496.     @pyqtSlot()

  1497.     def slot_aboutQt(self):

  1498.         QApplication.instance().aboutQt()

  1499. 

  1500.     # --------------------------------------------------------------------------------------------------------

  1501.     # Disk (menu actions)

  1502. 

  1503.     @pyqtSlot(int)

  1504.     def slot_diskFolderChanged(self, index):

  1505.         if index < 0:

  1506.             return

  1507.         elif index == 0:

  1508.             filename = HOME

  1509.             self.ui.b_disk_remove.setEnabled(False)

  1510.         else:

  1511.             filename = self.ui.cb_disk.itemData(index)

  1512.             self.ui.b_disk_remove.setEnabled(True)

  1513. 

  1514.         self.fDirModel.setRootPath(filename)

  1515.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1516. 

  1517.     @pyqtSlot()

  1518.     def slot_diskFolderAdd(self):

  1519.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1520. 

  1521.         if newPath:

  1522.             if newPath[-1] == os.sep:

  1523.                 newPath = newPath[:-1]

  1524.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1525.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1526.             self.ui.b_disk_remove.setEnabled(True)

  1527. 

  1528.     @pyqtSlot()

  1529.     def slot_diskFolderRemove(self):

  1530.         index = self.ui.cb_disk.currentIndex()

  1531. 

  1532.         if index <= 0:

  1533.             return

  1534. 

  1535.         self.ui.cb_disk.removeItem(index)

  1536. 

  1537.         if self.ui.cb_disk.currentIndex() == 0:

  1538.             self.ui.b_disk_remove.setEnabled(False)

  1539. 

  1540.     @pyqtSlot(QModelIndex)

  1541.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1542.         filename = self.fDirModel.filePath(modelIndex)

  1543. 

  1544.         if not self.host.load_file(filename):

  1545.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1546.                              self.tr("Failed to load file"),

  1547.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1548. 

  1549.     # --------------------------------------------------------------------------------------------------------

  1550.     # Transport

  1551. 

  1552.     def refreshTransport(self, forced = False):

  1553.         if not self.isVisible():

  1554.             return

  1555.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1556.             return

  1557. 

  1558.         timeInfo = self.host.get_transport_info()

  1559.         playing  = timeInfo['playing']

  1560.         frame    = timeInfo['frame']

  1561.         bpm      = timeInfo['bpm']

  1562. 

  1563.         if playing != self.fLastTransportState or forced:

  1564.             if playing:

  1565.                 icon = getIcon("media-playback-pause")

  1566.                 self.ui.b_transport_play.setChecked(True)

  1567.                 self.ui.b_transport_play.setIcon(icon)

  1568.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1569.             else:

  1570.                 icon = getIcon("media-playback-start")

  1571.                 self.ui.b_transport_play.setChecked(False)

  1572.                 self.ui.b_transport_play.setIcon(icon)

  1573.                 #self.ui.b_play.setText(self.tr("&Play"))

  1574. 

  1575.             self.fLastTransportState = playing

  1576. 

  1577.         if frame != self.fLastTransportFrame or forced:

  1578.             self.fLastTransportFrame = frame

  1579. 

  1580.             time = frame / self.fSampleRate

  1581.             secs =  time % 60

  1582.             mins = (time / 60) % 60

  1583.             hrs  = (time / 3600) % 60

  1584.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1585. 

  1586.             frame1 =  frame % 1000

  1587.             frame2 = (frame / 1000) % 1000

  1588.             frame3 = (frame / 1000000) % 1000

  1589.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1590. 

  1591.             bar  = timeInfo['bar']

  1592.             beat = timeInfo['beat']

  1593.             tick = timeInfo['tick']

  1594.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1595. 

  1596.         if bpm != self.fLastTransportBPM or forced:

  1597.             self.fLastTransportBPM = bpm

  1598. 

  1599.             if bpm > 0.0:

  1600.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1601.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1602.             else:

  1603.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1604. 

  1605.     # --------------------------------------------------------------------------------------------------------

  1606.     # Transport (menu actions)

  1607. 

  1608.     @pyqtSlot(bool)

  1609.     def slot_transportPlayPause(self, toggled):

  1610.         if self.host.isPlugin or not self.host.is_engine_running():

  1611.             return

  1612. 

  1613.         if toggled:

  1614.             self.host.transport_play()

  1615.         else:

  1616.             self.host.transport_pause()

  1617. 

  1618.         self.refreshTransport()

  1619. 

  1620.     @pyqtSlot()

  1621.     def slot_transportStop(self):

  1622.         if self.host.isPlugin or not self.host.is_engine_running():

  1623.             return

  1624. 

  1625.         self.host.transport_pause()

  1626.         self.host.transport_relocate(0)

  1627. 

  1628.         self.refreshTransport()

  1629. 

  1630.     @pyqtSlot()

  1631.     def slot_transportBackwards(self):

  1632.         if self.host.isPlugin or not self.host.is_engine_running():

  1633.             return

  1634. 

  1635.         newFrame = self.host.get_current_transport_frame() - 100000

  1636. 

  1637.         if newFrame < 0:

  1638.             newFrame = 0

  1639. 

  1640.         self.host.transport_relocate(newFrame)

  1641. 

  1642.     @pyqtSlot()

  1643.     def slot_transportForwards(self):

  1644.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1645.             return

  1646. 

  1647.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1648.         self.host.transport_relocate(newFrame)

  1649. 

  1650.     @pyqtSlot(bool)

  1651.     def slot_transportJackEnabled(self, clicked):

  1652.         if not self.host.is_engine_running():

  1653.             return

  1654.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1655.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1656.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1657. 

  1658.     @pyqtSlot(bool)

  1659.     def slot_transportLinkEnabled(self, clicked):

  1660.         if not self.host.is_engine_running():

  1661.             return

  1662.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1663.         extra = ":link:" if clicked else ""

  1664.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1665. 

  1666.     # --------------------------------------------------------------------------------------------------------

  1667.     # Canvas scrollbars

  1668. 

  1669.     @pyqtSlot(int)

  1670.     def slot_horizontalScrollBarChanged(self, value):

  1671.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1672.         if maximum == 0:

  1673.             xp = 0

  1674.         else:

  1675.             xp = float(value) / maximum

  1676.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1677.         self.updateCanvasInitialPos()

  1678. 

  1679.     @pyqtSlot(int)

  1680.     def slot_verticalScrollBarChanged(self, value):

  1681.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1682.         if maximum == 0:

  1683.             yp = 0

  1684.         else:

  1685.             yp = float(value) / maximum

  1686.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1687.         self.updateCanvasInitialPos()

  1688. 

  1689.     # --------------------------------------------------------------------------------------------------------

  1690.     # Canvas keyboard

  1691. 

  1692.     @pyqtSlot(int)

  1693.     def slot_noteOn(self, note):

  1694.         for pluginId in self.fSelectedPlugins:

  1695.             self.host.send_midi_note(pluginId, 0, note, 100)

  1696. 

  1697.             pedit = self.getPluginEditDialog(pluginId)

  1698.             pedit.noteOn(0, note, 100)

  1699. 

  1700.     @pyqtSlot(int)

  1701.     def slot_noteOff(self, note):

  1702.         for pluginId in self.fSelectedPlugins:

  1703.             self.host.send_midi_note(pluginId, 0, note, 0)

  1704. 

  1705.             pedit = self.getPluginEditDialog(pluginId)

  1706.             pedit.noteOff(0, note)

  1707. 

  1708.     # --------------------------------------------------------------------------------------------------------

  1709.     # Canvas keyboard (host callbacks)

  1710. 

  1711.     @pyqtSlot(int, int, int, int)

  1712.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1713.         if pluginId in self.fSelectedPlugins:

  1714.             self.ui.keyboard.sendNoteOn(note, False)

  1715. 

  1716.     @pyqtSlot(int, int, int)

  1717.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1718.         if pluginId in self.fSelectedPlugins:

  1719.             self.ui.keyboard.sendNoteOff(note, False)

  1720. 

  1721.     # --------------------------------------------------------------------------------------------------------

  1722. 

  1723.     @pyqtSlot(int)

  1724.     def slot_handleUpdateCallback(self, pluginId):

  1725.         pitem = self.getPluginItem(pluginId)

  1726. 

  1727.         if pitem is None:

  1728.             return

  1729. 

  1730.         wasCompacted = pitem.isCompacted()

  1731.         isCompacted  = wasCompacted

  1732. 

  1733.         for i in range(self.host.get_custom_data_count(pluginId)):

  1734.             cdata = self.host.get_custom_data(pluginId, i)

  1735. 

  1736.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1737.                 isCompacted = bool(cdata['value'] == "true")

  1738.                 break

  1739.         else:

  1740.             return

  1741. 

  1742.         if wasCompacted == isCompacted:

  1743.             return

  1744. 

  1745.         pitem.recreateWidget(True)

  1746. 

  1747.     # --------------------------------------------------------------------------------------------------------

  1748.     # MiniCanvas stuff

  1749. 

  1750.     @pyqtSlot()

  1751.     def slot_miniCanvasCheckAll(self):

  1752.         self.slot_miniCanvasCheckSize()

  1753.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1754.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1755. 

  1756.     @pyqtSlot()

  1757.     def slot_miniCanvasCheckSize(self):

  1758.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1759.             return

  1760. 

  1761.         currentIndex = self.ui.tabWidget.currentIndex()

  1762. 

  1763.         if currentIndex == 1:

  1764.             width  = self.ui.graphicsView.width()

  1765.             height = self.ui.graphicsView.height()

  1766.         else:

  1767.             self.ui.tabWidget.blockSignals(True)

  1768.             self.ui.tabWidget.setCurrentIndex(1)

  1769.             width  = self.ui.graphicsView.width()

  1770.             height = self.ui.graphicsView.height()

  1771.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1772.             self.ui.tabWidget.blockSignals(False)

  1773. 

  1774.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1775. 

  1776.     @pyqtSlot(float, float)

  1777.     def slot_miniCanvasMoved(self, xp, yp):

  1778.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1779.         vsb = self.ui.graphicsView.verticalScrollBar()

  1780.         hsb.setValue(xp * hsb.maximum())

  1781.         vsb.setValue(yp * vsb.maximum())

  1782.         self.updateCanvasInitialPos()

  1783. 

  1784.     # --------------------------------------------------------------------------------------------------------

  1785.     # Timers

  1786. 

  1787.     def startTimers(self):

  1788.         if self.fIdleTimerFast == 0:

  1789.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1790. 

  1791.         if self.fIdleTimerSlow == 0:

  1792.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1793. 

  1794.     def restartTimersIfNeeded(self):

  1795.         if self.fIdleTimerFast != 0:

  1796.             self.killTimer(self.fIdleTimerFast)

  1797.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1798. 

  1799.         if self.fIdleTimerSlow != 0:

  1800.             self.killTimer(self.fIdleTimerSlow)

  1801.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1802. 

  1803.     def killTimers(self):

  1804.         if self.fIdleTimerFast != 0:

  1805.             self.killTimer(self.fIdleTimerFast)

  1806.             self.fIdleTimerFast = 0

  1807. 

  1808.         if self.fIdleTimerSlow != 0:

  1809.             self.killTimer(self.fIdleTimerSlow)

  1810.             self.fIdleTimerSlow = 0

  1811. 

  1812.     # --------------------------------------------------------------------------------------------------------

  1813.     # Misc

  1814. 

  1815.     @pyqtSlot(int)

  1816.     def slot_tabChanged(self, index):

  1817.         if index != 1:

  1818.             return

  1819. 

  1820.         self.ui.graphicsView.setFocus()

  1821. 

  1822.     @pyqtSlot(int)

  1823.     def slot_handleReloadAllCallback(self, pluginId):

  1824.         if pluginId >= self.fPluginCount:

  1825.             return

  1826. 

  1827.         pitem = self.fPluginList[pluginId]

  1828.         if pitem is None:

  1829.             return

  1830. 

  1831.         pitem.recreateWidget()

  1832. 

  1833.     # --------------------------------------------------------------------------------------------------------

  1834. 

  1835.     @pyqtSlot(int, int, str)

  1836.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  1837.         # Error

  1838.         if value1 == 0:

  1839.             pass

  1840. 

  1841.         # Reply

  1842.         elif value1 == 1:

  1843.             self.fFirstEngineInit    = False

  1844.             self.fSessionManagerName = valueStr

  1845.             self.setProperWindowTitle()

  1846. 

  1847.         # Open

  1848.         elif value1 == 2:

  1849.             self.fClientName      = os.path.basename(valueStr)

  1850.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  1851.             self.setProperWindowTitle()

  1852. 

  1853.             self.fCustomStopAction = 2

  1854.             self.slot_engineStop(True)

  1855.             return

  1856. 

  1857.         # Save

  1858.         elif value1 == 3:

  1859.             self.saveProjectNow()

  1860. 

  1861.         # Session is Loaded

  1862.         elif value1 == 4:

  1863.             pass

  1864. 

  1865.         # Show Optional Gui

  1866.         elif value1 == 5:

  1867.             self.show()

  1868. 

  1869.         # Hide Optional Gui

  1870.         elif value1 == 6:

  1871.             self.hide()

  1872. 

  1873.         self.host.nsm_ready(value1)

  1874. 

  1875.     # --------------------------------------------------------------------------------------------------------

  1876. 

  1877.     def fixLogText(self, text):

  1878.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  1879. 

  1880.     @pyqtSlot(int, int, int, float, str)

  1881.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1882.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  1883. 

  1884.     @pyqtSlot(str)

  1885.     def slot_handleInfoCallback(self, info):

  1886.         QMessageBox.information(self, "Information", info)

  1887. 

  1888.     @pyqtSlot(str)

  1889.     def slot_handleErrorCallback(self, error):

  1890.         QMessageBox.critical(self, "Error", error)

  1891. 

  1892.     @pyqtSlot()

  1893.     def slot_handleQuitCallback(self):

  1894.         pass # TODO

  1895. 

  1896.     # --------------------------------------------------------------------------------------------------------

  1897. 

  1898.     @pyqtSlot()

  1899.     def slot_handleSIGUSR1(self):

  1900.         print("Got SIGUSR1 -> Saving project now")

  1901.         self.slot_fileSave()

  1902. 

  1903.     @pyqtSlot()

  1904.     def slot_handleSIGTERM(self):

  1905.         print("Got SIGTERM -> Closing now")

  1906.         self.fCustomStopAction = 1

  1907.         self.slot_engineStop(True)

  1908. 

  1909.     # --------------------------------------------------------------------------------------------------------

  1910.     # Internal stuff

  1911. 

  1912.     def getExtraPtr(self, plugin):

  1913.         ptype = plugin['type']

  1914. 

  1915.         if ptype == PLUGIN_LADSPA:

  1916.             uniqueId = plugin['uniqueId']

  1917. 

  1918.             self.maybeLoadRDFs()

  1919. 

  1920.             for rdfItem in self.fLadspaRdfList:

  1921.                 if rdfItem.UniqueID == uniqueId:

  1922.                     return pointer(rdfItem)

  1923. 

  1924.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  1925.             if plugin['name'].lower().endswith(" (16 outputs)"):

  1926.                 return self._true

  1927. 

  1928.         return None

  1929. 

  1930.     def maybeLoadRDFs(self):

  1931.         if not self.fLadspaRdfNeedsUpdate:

  1932.             return

  1933. 

  1934.         self.fLadspaRdfNeedsUpdate = False

  1935.         self.fLadspaRdfList = []

  1936. 

  1937.         if not haveLRDF:

  1938.             return

  1939. 

  1940.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  1941.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  1942. 

  1943.         if os.path.exists(frLadspaFile):

  1944.             frLadspa = open(frLadspaFile, 'r')

  1945. 

  1946.             try:

  1947.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  1948.             except:

  1949.                 pass

  1950. 

  1951.             frLadspa.close()

  1952. 

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

  1954. 

  1955.     def getPluginItem(self, pluginId):

  1956.         if pluginId >= self.fPluginCount:

  1957.             return None

  1958. 

  1959.         pitem = self.fPluginList[pluginId]

  1960.         if pitem is None:

  1961.             return None

  1962.         #if False:

  1963.             #return CarlaRackItem(self, 0, False)

  1964. 

  1965.         return pitem

  1966. 

  1967.     def getPluginEditDialog(self, pluginId):

  1968.         if pluginId >= self.fPluginCount:

  1969.             return None

  1970. 

  1971.         pitem = self.fPluginList[pluginId]

  1972.         if pitem is None:

  1973.             return None

  1974.         if False:

  1975.             return PluginEdit(self, self.host, 0)

  1976. 

  1977.         return pitem.getEditDialog()

  1978. 

  1979.     def getPluginSlotWidget(self, pluginId):

  1980.         if pluginId >= self.fPluginCount:

  1981.             return None

  1982. 

  1983.         pitem = self.fPluginList[pluginId]

  1984.         if pitem is None:

  1985.             return None

  1986.         #if False:

  1987.             #return AbstractPluginSlot()

  1988. 

  1989.         return pitem.getWidget()

  1990. 

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

  1992. 

  1993.     def waitForPendingEvents(self):

  1994.         pass

  1995. 

  1996.     # --------------------------------------------------------------------------------------------------------

  1997.     # show/hide event

  1998. 

  1999.     def showEvent(self, event):

  2000.         self.refreshTransport(True)

  2001.         QMainWindow.showEvent(self, event)

  2002. 

  2003.         # set our gui as parent for all plugins UIs

  2004.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2005.             winIdStr = "%x" % int(self.winId())

  2006.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2007. 

  2008.     def hideEvent(self, event):

  2009.         # disable parent

  2010.         if not (self.host.isControl or self.host.isPlugin):

  2011.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2012. 

  2013.         QMainWindow.hideEvent(self, event)

  2014. 

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

  2016.     # resize event

  2017. 

  2018.     def fixCanvasPreviewSize(self):

  2019.         self.ui.patchbay.resize(self.ui.rack.size())

  2020.         self.slot_miniCanvasCheckSize()

  2021. 

  2022.     def resizeEvent(self, event):

  2023.         QMainWindow.resizeEvent(self, event)

  2024. 

  2025.         if self.ui.tabWidget.currentIndex() != 1:

  2026.             size = self.ui.rack.size()

  2027.             self.ui.patchbay.resize(size)

  2028. 

  2029.         self.slot_miniCanvasCheckSize()

  2030. 

  2031.     # --------------------------------------------------------------------------------------------------------

  2032.     # timer event

  2033. 

  2034.     def idleFast(self):

  2035.         self.host.engine_idle()

  2036.         self.refreshTransport()

  2037. 

  2038.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2039.             return

  2040. 

  2041.         for pitem in self.fPluginList:

  2042.             if pitem is None:

  2043.                 break

  2044. 

  2045.             pitem.getWidget().idleFast()

  2046. 

  2047.         for pluginId in self.fSelectedPlugins:

  2048.             self.fPeaksCleared = False

  2049.             if self.ui.peak_in.isVisible():

  2050.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2051.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2052.             if self.ui.peak_out.isVisible():

  2053.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2054.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2055.             return

  2056. 

  2057.         if self.fPeaksCleared:

  2058.             return

  2059. 

  2060.         self.fPeaksCleared = True

  2061.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2062.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2063.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2064.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2065. 

  2066.     def idleSlow(self):

  2067.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2068.             return

  2069. 

  2070.         for pitem in self.fPluginList:

  2071.             if pitem is None:

  2072.                 break

  2073. 

  2074.             pitem.getWidget().idleSlow()

  2075. 

  2076.     def timerEvent(self, event):

  2077.         if event.timerId() == self.fIdleTimerFast:

  2078.             self.idleFast()

  2079. 

  2080.         elif event.timerId() == self.fIdleTimerSlow:

  2081.             self.idleSlow()

  2082. 

  2083.         QMainWindow.timerEvent(self, event)

  2084. 

  2085.     # --------------------------------------------------------------------------------------------------------

  2086.     # paint event

  2087. 

  2088.     #def paintEvent(self, event):

  2089.         #QMainWindow.paintEvent(self, event)

  2090. 

  2091.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2092.             #return

  2093. 

  2094.         #painter = QPainter(self)

  2095.         #painter.setBrush(QColor(36, 36, 36))

  2096.         #painter.setPen(QColor(62, 62, 62))

  2097.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2098. 

  2099.     # --------------------------------------------------------------------------------------------------------

  2100.     # close event

  2101. 

  2102.     def closeEvent(self, event):

  2103.         self.killTimers()

  2104.         self.saveSettings()

  2105. 

  2106.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2107.             if not self.slot_engineStop(True):

  2108.                 self.fCustomStopAction = 1

  2109.                 event.ignore()

  2110.                 return

  2111. 

  2112.         QMainWindow.closeEvent(self, event)

  2113. 

  2114. # ------------------------------------------------------------------------------------------------

  2115. # Canvas callback

  2116. 

  2117. def canvasCallback(action, value1, value2, valueStr):

  2118.     host = gCarla.gui.host

  2119. 

  2120.     if action == patchcanvas.ACTION_GROUP_INFO:

  2121.         pass

  2122. 

  2123.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2124.         pass

  2125. 

  2126.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2127.         groupId = value1

  2128.         patchcanvas.splitGroup(groupId)

  2129.         gCarla.gui.updateMiniCanvasLater()

  2130. 

  2131.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2132.         groupId = value1

  2133.         patchcanvas.joinGroup(groupId)

  2134.         gCarla.gui.updateMiniCanvasLater()

  2135. 

  2136.     elif action == patchcanvas.ACTION_PORT_INFO:

  2137.         pass

  2138. 

  2139.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2140.         pass

  2141. 

  2142.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2143.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2144. 

  2145.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2146.             print("Connection failed:", host.get_last_error())

  2147. 

  2148.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2149.         connectionId = value1

  2150. 

  2151.         if not host.patchbay_disconnect(connectionId):

  2152.             print("Disconnect failed:", host.get_last_error())

  2153. 

  2154.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2155.         pluginId = value1

  2156. 

  2157.         if not host.clone_plugin(pluginId):

  2158.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2159.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2160. 

  2161.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2162.         pluginId = value1

  2163.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2164. 

  2165.         if pwidget is not None:

  2166.             pwidget.showEditDialog()

  2167. 

  2168.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2169.         pluginId = value1

  2170.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2171. 

  2172.         if pwidget is not None:

  2173.             pwidget.showRenameDialog()

  2174. 

  2175.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2176.         pluginId = value1

  2177.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2178. 

  2179.         if pwidget is not None:

  2180.             pwidget.showReplaceDialog()

  2181. 

  2182.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2183.         pluginId = value1

  2184. 

  2185.         if not host.remove_plugin(pluginId):

  2186.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2187.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2188. 

  2189.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2190.         pluginId = value1

  2191.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2192. 

  2193.         if pwidget is not None:

  2194.             pwidget.showCustomUI()

  2195. 

  2196.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2197.         gCarla.gui.showPluginActionsMenu()

  2198. 

  2199. # ------------------------------------------------------------------------------------------------------------

  2200. # Engine callback

  2201. 

  2202. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2203.     # kdevelop likes this :)

  2204.     if False: host = CarlaHostNull()

  2205. 

  2206.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2207.         host.processMode   = value1

  2208.         host.transportMode = value2

  2209.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2210.         host.processMode   = value1

  2211.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2212.         host.transportMode = value1

  2213. 

  2214.     valueStr = charPtrToString(valueStr)

  2215. 

  2216.     if action == ENGINE_CALLBACK_DEBUG:

  2217.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2218.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2219.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2220.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2221.         host.PluginRemovedCallback.emit(pluginId)

  2222.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2223.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2224.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2225.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2226.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2227.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2228.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2229.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2230.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2231.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2232.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2233.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2234.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2235.         host.ProgramChangedCallback.emit(pluginId, value1)

  2236.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2237.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2238.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2239.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2240.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2241.         host.UiStateChangedCallback.emit(pluginId, value1)

  2242.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2243.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2244.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2245.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2246.     elif action == ENGINE_CALLBACK_UPDATE:

  2247.         host.UpdateCallback.emit(pluginId)

  2248.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2249.         host.ReloadInfoCallback.emit(pluginId)

  2250.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2251.         host.ReloadParametersCallback.emit(pluginId)

  2252.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2253.         host.ReloadProgramsCallback.emit(pluginId)

  2254.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2255.         host.ReloadAllCallback.emit(pluginId)

  2256.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2257.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2258.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2259.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2260.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2261.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2262.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2263.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2264.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2265.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2266.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2267.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2268.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2269.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2270.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2271.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2272.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2273.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2274.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2275.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2276.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  2277.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2278.         host.EngineStoppedCallback.emit()

  2279.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2280.         host.ProcessModeChangedCallback.emit(value1)

  2281.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2282.         host.TransportModeChangedCallback.emit(value1)

  2283.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2284.         host.BufferSizeChangedCallback.emit(value1)

  2285.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2286.         host.SampleRateChangedCallback.emit(value3)

  2287.     elif action == ENGINE_CALLBACK_NSM:

  2288.         host.NSMCallback.emit(value1, value2, valueStr)

  2289.     elif action == ENGINE_CALLBACK_IDLE:

  2290.         QApplication.instance().processEvents()

  2291.     elif action == ENGINE_CALLBACK_INFO:

  2292.         host.InfoCallback.emit(valueStr)

  2293.     elif action == ENGINE_CALLBACK_ERROR:

  2294.         host.ErrorCallback.emit(valueStr)

  2295.     elif action == ENGINE_CALLBACK_QUIT:

  2296.         host.QuitCallback.emit()

  2297. 

  2298. # ------------------------------------------------------------------------------------------------------------

  2299. # File callback

  2300. 

  2301. def fileCallback(ptr, action, isDir, title, filter):

  2302.     ret = ("", "") if config_UseQt5 else ""

  2303. 

  2304.     if action == FILE_CALLBACK_DEBUG:

  2305.         pass

  2306.     elif action == FILE_CALLBACK_OPEN:

  2307.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2308.     elif action == FILE_CALLBACK_SAVE:

  2309.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  2310. 

  2311.     if config_UseQt5:

  2312.         ret = ret[0]

  2313.     if not ret:

  2314.         return None

  2315. 

  2316.     # FIXME

  2317.     global fileRet

  2318.     fileRet = c_char_p(ret.encode("utf-8"))

  2319.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2320.     return retval.contents.value

  2321. 

  2322. # ------------------------------------------------------------------------------------------------------------

  2323. # Init host

  2324. 

  2325. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2326.     pathBinaries, pathResources = getPaths(libPrefix)

  2327. 

  2328.     # --------------------------------------------------------------------------------------------------------

  2329.     # Check if we should open main lib as local or global

  2330. 

  2331.     settings = QSettings("falkTX", "Carla2")

  2332. 

  2333.     try:

  2334.         loadLocal = settings.value(CARLA_KEY_MAIN_LOAD_LIB_LOCAL, CARLA_DEFAULT_MAIN_LOAD_LIB_LOCAL, type=bool)

  2335.     except:

  2336.         loadLocal = CARLA_DEFAULT_MAIN_LOAD_LIB_LOCAL

  2337. 

  2338.     # --------------------------------------------------------------------------------------------------------

  2339.     # Fail if binary dir is not found

  2340. 

  2341.     if not os.path.exists(pathBinaries):

  2342.         if failError:

  2343.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2344.             sys.exit(1)

  2345.         return

  2346. 

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

  2348.     # Set Carla library name

  2349. 

  2350.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2351.     libname   = os.path.join(pathBinaries, libname)

  2352.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2353. 

  2354.     # --------------------------------------------------------------------------------------------------------

  2355.     # Print info

  2356. 

  2357.     print("Carla %s started, status:" % VERSION)

  2358.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2359.     print("  Qt version:     %s" % qVersion())

  2360.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2361.     print("  Binary dir:     %s" % pathBinaries)

  2362.     print("  Resources dir:  %s" % pathResources)

  2363. 

  2364.     # --------------------------------------------------------------------------------------------------------

  2365.     # Init host

  2366. 

  2367. 

  2368. 

  2369.     if failError:

  2370.         # no try

  2371.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadLocal)

  2372.     else:

  2373.         try:

  2374.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadLocal)

  2375.         except:

  2376.             host = CarlaHostQtNull()

  2377. 

  2378.     host.isControl = isControl

  2379.     host.isPlugin  = isPlugin

  2380. 

  2381.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2382.     host.set_file_callback(fileCallback)

  2383. 

  2384.     # If it's a plugin the paths are already set

  2385.     if not isPlugin:

  2386.         host.pathBinaries  = pathBinaries

  2387.         host.pathResources = pathResources

  2388.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2389.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2390. 

  2391.         if not isControl:

  2392.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2393. 

  2394.     # --------------------------------------------------------------------------------------------------------

  2395.     # Init utils

  2396. 

  2397.     gCarla.utils = CarlaUtils(utilsname)

  2398.     gCarla.utils.set_process_name(os.path.basename(initName))

  2399. 

  2400.     try:

  2401.         sys.stdout.flush()

  2402.     except:

  2403.         pass

  2404. 

  2405.     sys.stdout = CarlaPrint(False)

  2406.     sys.stderr = CarlaPrint(True)

  2407. 

  2408.     # --------------------------------------------------------------------------------------------------------

  2409.     # Done

  2410. 

  2411.     return host

  2412. 

  2413. # ------------------------------------------------------------------------------------------------------------

  2414. # Load host settings

  2415. 

  2416. def loadHostSettings(host):

  2417.     # kdevelop likes this :)

  2418.     if False: host = CarlaHostNull()

  2419. 

  2420.     settings = QSettings("falkTX", "Carla2")

  2421. 

  2422.     # bool values

  2423.     try:

  2424.         host.manageUIs = settings.value(CARLA_KEY_MAIN_MANAGE_UIS, CARLA_DEFAULT_MAIN_MANAGE_UIS, type=bool)

  2425.     except:

  2426.         host.manageUIs = CARLA_DEFAULT_MAIN_MANAGE_UIS

  2427. 

  2428.     try:

  2429.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2430.     except:

  2431.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2432. 

  2433.     try:

  2434.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2435.     except:

  2436.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2437. 

  2438.     try:

  2439.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2440.     except:

  2441.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2442. 

  2443.     try:

  2444.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2445.     except:

  2446.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2447. 

  2448.     try:

  2449.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2450.     except:

  2451.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2452. 

  2453.     # int values

  2454.     try:

  2455.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2456.     except:

  2457.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2458. 

  2459.     try:

  2460.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2461.     except:

  2462.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2463. 

  2464.     if host.isPlugin:

  2465.         return

  2466. 

  2467.     # enums

  2468.     if host.audioDriverForced is None:

  2469.         try:

  2470.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2471.         except:

  2472.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2473. 

  2474.     if not host.processModeForced:

  2475.         try:

  2476.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2477.         except:

  2478.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2479. 

  2480.     host.nextProcessMode = host.processMode

  2481. 

  2482.     # --------------------------------------------------------------------------------------------------------

  2483.     # fix things if needed

  2484. 

  2485.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2486.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2487.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2488. 

  2489.     # --------------------------------------------------------------------------------------------------------

  2490.     # run headless host now if nogui option enabled

  2491. 

  2492.     if gCarla.nogui:

  2493.         runHostWithoutUI(host)

  2494. 

  2495. # ------------------------------------------------------------------------------------------------------------

  2496. # Set host settings

  2497. 

  2498. def setHostSettings(host):

  2499.     # kdevelop likes this :)

  2500.     if False: host = CarlaHostNull()

  2501. 

  2502.     # TEST

  2503.     #host.preventBadBehaviour = True

  2504.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2505.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2506.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2507.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2508.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2509.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2510.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2511.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2512. 

  2513.     if host.isPlugin:

  2514.         return

  2515. 

  2516.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2517.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2518. 

  2519. # ------------------------------------------------------------------------------------------------------------

  2520. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2521. 

  2522. def setEngineSettings(host):

  2523.     # kdevelop likes this :)

  2524.     if False: host = CarlaHostNull()

  2525. 

  2526.     # --------------------------------------------------------------------------------------------------------

  2527.     # do nothing if control

  2528. 

  2529.     if host.isControl:

  2530.         return "Control"

  2531. 

  2532.     # --------------------------------------------------------------------------------------------------------

  2533. 

  2534.     settings = QSettings("falkTX", "Carla2")

  2535. 

  2536.     # --------------------------------------------------------------------------------------------------------

  2537.     # main settings

  2538. 

  2539.     setHostSettings(host)

  2540. 

  2541.     # --------------------------------------------------------------------------------------------------------

  2542.     # plugin paths

  2543. 

  2544.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2545.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2546.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2547.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2548.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  2549.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2550.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2551.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2552. 

  2553.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2554.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2555.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2556.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2557.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  2558.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2559.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2560.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2561. 

  2562.     # --------------------------------------------------------------------------------------------------------

  2563.     # don't continue if plugin

  2564. 

  2565.     if host.isPlugin:

  2566.         return "Plugin"

  2567. 

  2568.     # --------------------------------------------------------------------------------------------------------

  2569.     # driver and device settings

  2570. 

  2571.     # driver name

  2572.     if host.audioDriverForced is not None:

  2573.         audioDriver = host.audioDriverForced

  2574.     else:

  2575.         try:

  2576.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2577.         except:

  2578.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2579. 

  2580.     # driver options

  2581.     try:

  2582.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2583.     except:

  2584.         audioDevice = ""

  2585. 

  2586.     try:

  2587.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2588.     except:

  2589.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2590. 

  2591.     try:

  2592.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2593.     except:

  2594.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2595. 

  2596.     try:

  2597.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2598.     except:

  2599.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2600. 

  2601.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2602.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2603.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2604.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2605. 

  2606.     # --------------------------------------------------------------------------------------------------------

  2607.     # fix things if needed

  2608. 

  2609.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2610.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2611.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2612. 

  2613.     # --------------------------------------------------------------------------------------------------------

  2614.     # return selected driver name

  2615. 

  2616.     return audioDriver

  2617. 

  2618. # ------------------------------------------------------------------------------------------------------------

  2619. # Run Carla without showing UI

  2620. 

  2621. def runHostWithoutUI(host):

  2622.     # kdevelop likes this :)

  2623.     if False: host = CarlaHostNull()

  2624. 

  2625.     # --------------------------------------------------------------------------------------------------------

  2626.     # Some initial checks

  2627. 

  2628.     if not gCarla.nogui:

  2629.         return

  2630. 

  2631.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2632. 

  2633.     if not projectFile:

  2634.         print("Carla no-gui mode can only be used together with a project file.")

  2635.         sys.exit(1)

  2636. 

  2637.     # --------------------------------------------------------------------------------------------------------

  2638.     # Additional imports

  2639. 

  2640.     from time import sleep

  2641. 

  2642.     # --------------------------------------------------------------------------------------------------------

  2643.     # Init engine

  2644. 

  2645.     audioDriver = setEngineSettings(host)

  2646.     if not host.engine_init(audioDriver, "Carla-nogui"):

  2647.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2648.         sys.exit(1)

  2649. 

  2650.     if not host.load_project(projectFile):

  2651.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2652.         host.engine_close()

  2653.         sys.exit(1)

  2654. 

  2655.     # --------------------------------------------------------------------------------------------------------

  2656.     # Idle

  2657. 

  2658.     while host.is_engine_running() and not gCarla.term:

  2659.         host.engine_idle()

  2660.         sleep(0.5)

  2661. 

  2662.     # --------------------------------------------------------------------------------------------------------

  2663.     # Stop

  2664. 

  2665.     host.engine_close()

  2666.     sys.exit(0)

  2667. 

  2668. # ------------------------------------------------------------------------------------------------------------