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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

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

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

  24. from PyQt5.Qt import PYQT_VERSION

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

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

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

  28. 

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

  30. # Imports (Custom)

  31. 

  32. import ui_carla_host

  33. 

  34. from carla_app import *

  35. from carla_database import *

  36. from carla_settings import *

  37. from carla_utils import *

  38. from carla_widgets import *

  39. 

  40. from patchcanvas import patchcanvas

  41. from widgets.digitalpeakmeter import DigitalPeakMeter

  42. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  43. 

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

  45. # Try Import OpenGL

  46. 

  47. try:

  48.     from PyQt5.QtOpenGL import QGLWidget

  49.     hasGL = True

  50. except:

  51.     hasGL = False

  52. 

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

  54. # Safe exception hook, needed for PyQt5

  55. 

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

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

  58. 

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

  60. # Session Management support

  61. 

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

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

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

  65. 

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

  67. # Small print helper

  68. 

  69. def processMode2Str(processMode):

  70.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  71.         return "Single client"

  72.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  73.         return "Multi client"

  74.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  75.         return "Continuous Rack"

  76.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  77.         return "Patchbay"

  78.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  79.         return "Bridge"

  80.     return "Unknown"

  81. 

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

  83. # Carla Print class

  84. 

  85. class CarlaPrint:

  86.     def __init__(self, err):

  87.         self.err = err

  88. 

  89.     def flush(self):

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

  91. 

  92.     def write(self, string):

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

  94. 

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

  96. # Host Window

  97. 

  98. class HostWindow(QMainWindow):

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

  100.     # signals

  101.     SIGTERM = pyqtSignal()

  102.     SIGUSR1 = pyqtSignal()

  103. 

  104.     # CustomActions

  105.     CUSTOM_ACTION_NONE         = 0

  106.     CUSTOM_ACTION_APP_CLOSE    = 1

  107.     CUSTOM_ACTION_PROJECT_LOAD = 2

  108. 

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

  110. 

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

  112.         QMainWindow.__init__(self, parent)

  113.         self.host = host

  114.         self.ui = ui_carla_host.Ui_CarlaHostW()

  115.         self.ui.setupUi(self)

  116.         gCarla.gui = self

  117. 

  118.         if False:

  119.             # kdevelop likes this :)

  120.             host = CarlaHostNull()

  121.             self.host = host

  122. 

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

  124. 

  125.         self.fParentOrSelf = parent or self

  126. 

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

  128.         # Internal stuff

  129. 

  130.         self.fIdleTimerFast = 0

  131.         self.fIdleTimerSlow = 0

  132. 

  133.         self.fLadspaRdfNeedsUpdate = True

  134.         self.fLadspaRdfList = []

  135. 

  136.         self.fPluginCount = 0

  137.         self.fPluginList  = []

  138. 

  139.         self.fProjectFilename  = ""

  140.         self.fIsProjectLoading = False

  141.         self.fCurrentlyRemovingAllPlugins = False

  142. 

  143.         self.fLastTransportBPM   = 0.0

  144.         self.fLastTransportFrame = 0

  145.         self.fLastTransportState = False

  146.         self.fSampleRate         = 0.0

  147. 

  148.         if MACOS:

  149.             self.fMacClosingHelper = True

  150. 

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

  152.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  153. 

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

  155.         self.fFirstEngineInit = True

  156. 

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

  158.         self.fSavedSettings = {}

  159. 

  160.         if host.isControl:

  161.             self.fClientName         = "Carla-Control"

  162.             self.fSessionManagerName = "Control"

  163.         elif host.isPlugin:

  164.             self.fClientName         = "Carla-Plugin"

  165.             self.fSessionManagerName = "Plugin"

  166.         elif LADISH_APP_NAME:

  167.             self.fClientName         = LADISH_APP_NAME

  168.             self.fSessionManagerName = "LADISH"

  169.         elif NSM_URL and host.nsmOK:

  170.             self.fClientName         = "Carla.tmp"

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

  172.         else:

  173.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  174.             self.fSessionManagerName = ""

  175. 

  176.         # ----------------------------------------------------------------------------------------------------

  177.         # Internal stuff (patchbay)

  178. 

  179.         self.fExportImage = QImage()

  180. 

  181.         self.fPeaksCleared = True

  182. 

  183.         self.fExternalPatchbay = False

  184.         self.fSelectedPlugins  = []

  185. 

  186.         self.fCanvasWidth  = 0

  187.         self.fCanvasHeight = 0

  188.         self.fMiniCanvasUpdateTimeout = 0

  189. 

  190.         self.fWithCanvas = withCanvas

  191. 

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

  193.         # Set up GUI (engine stopped)

  194. 

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

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

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

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

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

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

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

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

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

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

  205. 

  206.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

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

  218.             else:

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

  220. 

  221.         else:

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

  223. 

  224.             if WINDOWS:

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

  226. 

  227.         if not self.host.isControl:

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

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

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

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

  232. 

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

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

  235. 

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

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

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

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

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

  241. 

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

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

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

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

  246. 

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

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

  249. 

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

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

  252. 

  253.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  271.             self.ui.miniCanvasPreview.hide()

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

  273.             if WINDOWS:

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

  275. 

  276.             if host.isControl:

  277.                 self.ui.dockWidget.hide()

  278. 

  279.         # ----------------------------------------------------------------------------------------------------

  280.         # Set up GUI (disk)

  281. 

  282.         exts = gCarla.utils.get_supported_file_extensions()

  283. 

  284.         self.fDirModel = QFileSystemModel(self)

  285.         self.fDirModel.setRootPath(HOME)

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

  287. 

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

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

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

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

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

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

  294. 

  295.         # ----------------------------------------------------------------------------------------------------

  296.         # Set up GUI (transport)

  297. 

  298.         fontMetrics   = QFontMetrics(self.ui.l_transport_bbt.font())

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

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

  301. 

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

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

  304. 

  305.         if minLabelWidth < labelTimeWidth:

  306.             minLabelWidth = labelTimeWidth

  307.         if minLabelWidth < labelBBTWidth:

  308.             minLabelWidth = labelBBTWidth

  309. 

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

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

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

  313. 

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

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

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

  317. 

  318.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  331. 

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

  333. 

  334.         # ----------------------------------------------------------------------------------------------------

  335.         # Set up GUI (rack)

  336. 

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

  338. 

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

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

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

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

  343. 

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

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

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

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

  348. 

  349.         self.updateStyle()

  350. 

  351.         self.ui.rack.setStyleSheet("""

  352.           CarlaRackList#CarlaRackList {

  353.             background-color: black;

  354.           }

  355.         """)

  356. 

  357.         # ----------------------------------------------------------------------------------------------------

  358.         # Set up GUI (patchbay)

  359. 

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

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

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

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

  364. 

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

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

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

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

  369. 

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

  371.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  373. 

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

  375. 

  376.         self.ui.miniCanvasPreview.setRealParent(self)

  377.         self.ui.verticalLayout_7.setContentsMargins(0, 0, 0, 1)

  378. 

  379.         # ----------------------------------------------------------------------------------------------------

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

  381. 

  382.         if MACOS:

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

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

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

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

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

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

  389. 

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

  391.         # Load Settings

  392. 

  393.         self.loadSettings(True)

  394. 

  395.         # ----------------------------------------------------------------------------------------------------

  396.         # Set-up Canvas

  397. 

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

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

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

  401. 

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

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

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

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

  406. 

  407.         self.setupCanvas()

  408. 

  409.         # ----------------------------------------------------------------------------------------------------

  410.         # Connect actions to functions

  411. 

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

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

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

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

  416. 

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

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

  419. 

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

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

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

  423. 

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

  425. 

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

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

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

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

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

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

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

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

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

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

  436. 

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

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

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

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

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

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

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

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

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

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

  447. 

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

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

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

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

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

  453. 

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

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

  456. 

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

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

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

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

  461. 

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

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

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

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

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

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

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

  469. 

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

  471. 

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

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

  474. 

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

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

  477. 

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

  479. 

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

  481. 

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

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

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

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

  486. 

  487.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  488.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  489. 

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

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

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

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

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

  495. 

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

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

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

  499. 

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

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

  502. 

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

  504. 

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

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

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

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

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

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

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

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

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

  514. 

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

  516. 

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

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

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

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

  521. 

  522.         # ----------------------------------------------------------------------------------------------------

  523.         # Final setup

  524. 

  525.         self.ui.text_logs.clear()

  526.         self.setProperWindowTitle()

  527. 

  528.         # Disable non-supported features

  529.         features = gCarla.utils.get_supported_features()

  530. 

  531.         if "link" not in features:

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

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

  534. 

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

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

  537.             self.startTimers()

  538. 

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

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

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

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

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

  544. 

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

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

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

  548. 

  549.         # Load initial project file if set

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

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

  552. 

  553.             if projectFile:

  554.                 self.loadProjectLater(projectFile)

  555. 

  556.         # For NSM we wait for the open message

  557.         if NSM_URL and host.nsmOK:

  558.             host.nsm_ready(-1)

  559.             return

  560. 

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

  562. 

  563.     # --------------------------------------------------------------------------------------------------------

  564.     # Setup

  565. 

  566.     def compactPlugin(self, pluginId):

  567.         if pluginId > self.fPluginCount:

  568.             return

  569. 

  570.         pitem = self.fPluginList[pluginId]

  571. 

  572.         if pitem is None:

  573.             return

  574. 

  575.         pitem.recreateWidget(True)

  576. 

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

  578.         if pluginId > self.fPluginCount:

  579.             return

  580. 

  581.         pitem = self.fPluginList[pluginId]

  582. 

  583.         if pitem is None:

  584.             return

  585. 

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

  587.         pitem.recreateWidget(newColor = color)

  588. 

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

  590.         if pluginId > self.fPluginCount:

  591.             return

  592. 

  593.         pitem = self.fPluginList[pluginId]

  594. 

  595.         if pitem is None:

  596.             return

  597. 

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

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

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

  601.         else:

  602.             pitem.recreateWidget(newSkin = skin)

  603. 

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

  605.         if pluginIdA == pluginIdB:

  606.             return

  607.         if pluginIdA < 0 or pluginIdB < 0:

  608.             return

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

  610.             return

  611. 

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

  613. 

  614.         itemA = self.fPluginList[pluginIdA]

  615.         compactA = itemA.isCompacted()

  616.         guiShownA = itemA.isGuiShown()

  617. 

  618.         itemB = self.fPluginList[pluginIdB]

  619.         compactB = itemB.isCompacted()

  620.         guiShownB = itemB.isGuiShown()

  621. 

  622.         itemA.setPluginId(pluginIdA)

  623.         itemA.recreateWidget2(compactB, guiShownB)

  624. 

  625.         itemB.setPluginId(pluginIdB)

  626.         itemB.recreateWidget2(compactA, guiShownA)

  627. 

  628.         self.slot_canvasRefresh()

  629. 

  630.     def setLoadRDFsNeeded(self):

  631.         self.fLadspaRdfNeedsUpdate = True

  632. 

  633.     def setProperWindowTitle(self):

  634.         title = self.fClientName

  635. 

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

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

  638.         if self.fSessionManagerName:

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

  640. 

  641.         self.setWindowTitle(title)

  642. 

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

  644.     # Files

  645. 

  646.     def makeExtraFilename(self):

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

  648. 

  649.     def loadProjectNow(self):

  650.         if not self.fProjectFilename:

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

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

  653.             return

  654. 

  655.         self.projectLoadingStarted()

  656.         self.fIsProjectLoading = True

  657.         self.host.load_project(self.fProjectFilename)

  658. 

  659.         # Project finished loading is sent by engine

  660. 

  661.     def loadProjectLater(self, filename):

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

  663.         self.setProperWindowTitle()

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

  665. 

  666.     def saveProjectNow(self):

  667.         if not self.fProjectFilename:

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

  669. 

  670.         self.host.save_project(self.fProjectFilename)

  671. 

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

  673.             json.dump({

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

  675.             }, fh)

  676. 

  677.     def projectLoadingStarted(self):

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

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

  680. 

  681.     def projectLoadingFinished(self):

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

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

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

  685. 

  686.         extrafile = self.makeExtraFilename()

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

  688.             return

  689. 

  690.         try:

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

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

  693.         except:

  694.             return

  695. 

  696.         patchcanvas.restoreGroupPositions(canvasdata)

  697. 

  698.     # --------------------------------------------------------------------------------------------------------

  699.     # Files (menu actions)

  700. 

  701.     @pyqtSlot()

  702.     def slot_fileNew(self):

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

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

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

  706.             return

  707. 

  708.         self.pluginRemoveAll()

  709.         self.fProjectFilename = ""

  710.         self.setProperWindowTitle()

  711. 

  712.     @pyqtSlot()

  713.     def slot_fileOpen(self):

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

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

  716. 

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

  718.         if not filename:

  719.             return

  720. 

  721.         newFile = True

  722. 

  723.         if self.fPluginCount > 0:

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

  725.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  727. 

  728.         if newFile:

  729.             self.pluginRemoveAll()

  730.             self.fProjectFilename = filename

  731.             self.setProperWindowTitle()

  732.             self.loadProjectNow()

  733.         else:

  734.             filenameOld = self.fProjectFilename

  735.             self.fProjectFilename = filename

  736.             self.loadProjectNow()

  737.             self.fProjectFilename = filenameOld

  738. 

  739.     @pyqtSlot()

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

  741.         if self.fProjectFilename and not saveAs:

  742.             return self.saveProjectNow()

  743. 

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

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

  746. 

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

  748.         if not filename:

  749.             return

  750. 

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

  752.             filename += ".carxp"

  753. 

  754.         if self.fProjectFilename != filename:

  755.             self.fProjectFilename = filename

  756.             self.setProperWindowTitle()

  757. 

  758.         self.saveProjectNow()

  759. 

  760.     @pyqtSlot()

  761.     def slot_fileSaveAs(self):

  762.         self.slot_fileSave(True)

  763. 

  764.     @pyqtSlot()

  765.     def slot_loadProjectNow(self):

  766.         self.loadProjectNow()

  767. 

  768.     # --------------------------------------------------------------------------------------------------------

  769.     # Engine (menu actions)

  770. 

  771.     @pyqtSlot()

  772.     def slot_engineStart(self):

  773.         audioDriver = setEngineSettings(self.host)

  774.         firstInit   = self.fFirstEngineInit

  775. 

  776.         self.fFirstEngineInit = False

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

  778. 

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

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

  781.                 settings = QSettings()

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

  783.                 del settings

  784.                 self.host.transport_bpm(lastBpm)

  785.             return

  786. 

  787.         elif firstInit:

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

  789.             return

  790. 

  791.         audioError = self.host.get_last_error()

  792. 

  793.         if audioError:

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

  795.         else:

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

  797. 

  798.     @pyqtSlot()

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

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

  801. 

  802.         if self.fPluginCount == 0:

  803.             self.engineStopFinal()

  804.             return True

  805. 

  806.         if not forced:

  807.             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"

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

  809.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  810.             if ask != QMessageBox.Yes:

  811.                 return False

  812. 

  813.         return self.slot_engineStopTryAgain()

  814. 

  815.     @pyqtSlot()

  816.     def slot_engineStopTryAgain(self):

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

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

  819.             return False

  820. 

  821.         self.engineStopFinal()

  822.         return True

  823. 

  824.     def engineStopFinal(self):

  825.         self.killTimers()

  826.         self.removeAllPlugins()

  827. 

  828.         if self.host.is_engine_running():

  829.             self.host.remove_all_plugins()

  830. 

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

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

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

  834. 

  835.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  836.             self.close()

  837.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  838.             self.slot_engineStart()

  839.             self.loadProjectNow()

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

  841. 

  842.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  843. 

  844.     # --------------------------------------------------------------------------------------------------------

  845.     # Engine (host callbacks)

  846. 

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

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

  849.         self.fSampleRate = sampleRate

  850. 

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

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

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

  854. 

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

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

  857. 

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

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

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

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

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

  863.         else:

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

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

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

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

  868. 

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

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

  871. 

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

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

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

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

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

  877.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  878. 

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

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

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

  882. 

  883.         self.refreshTransport(True)

  884. 

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

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

  887. 

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

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

  890. 

  891.         self.startTimers()

  892. 

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

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

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

  896.         self.ui.text_logs.appendPlainText("  Sample rate:  %.1f" % sampleRate)

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

  898. 

  899.     @pyqtSlot()

  900.     def slot_handleEngineStoppedCallback(self):

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

  902. 

  903.         patchcanvas.clear()

  904.         self.killTimers()

  905. 

  906.         # just in case

  907.         self.removeAllPlugins()

  908. 

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

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

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

  912. 

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

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

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

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

  917. 

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

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

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

  921. 

  922.     @pyqtSlot(int, str)

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

  924.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  925. 

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

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

  928. 

  929.     @pyqtSlot(float)

  930.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  931.         self.fSampleRate = newSampleRate

  932.         self.refreshTransport(True)

  933. 

  934.     @pyqtSlot()

  935.     def slot_handleProjectLoadFinishedCallback(self):

  936.         self.fIsProjectLoading = False

  937.         self.projectLoadingFinished()

  938. 

  939.     # --------------------------------------------------------------------------------------------------------

  940.     # Plugins

  941. 

  942.     def removeAllPlugins(self):

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

  944.         patchcanvas.handleAllPluginsRemoved()

  945. 

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

  947.             pass

  948. 

  949.         self.clearSideStuff()

  950. 

  951.         for pitem in self.fPluginList:

  952.             if pitem is None:

  953.                 continue

  954. 

  955.             pitem.close()

  956.             del pitem

  957. 

  958.         self.fPluginCount = 0

  959.         self.fPluginList  = []

  960. 

  961.     # --------------------------------------------------------------------------------------------------------

  962.     # Plugins (menu actions)

  963. 

  964.     def showAddPluginDialog(self):

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

  966. 

  967.         if not dialog.exec_():

  968.             return

  969. 

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

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

  972.             return

  973. 

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

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

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

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

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

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

  980. 

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

  982. 

  983.     def showAddJackAppDialog(self):

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

  985. 

  986.         if not dialog.exec_():

  987.             return

  988. 

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

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

  991.             return

  992. 

  993.         return dialog.getCommandAndFlags()

  994. 

  995.     @pyqtSlot()

  996.     def showPluginActionsMenu(self):

  997.         menu = QMenu(self)

  998. 

  999.         menu.addSection("Plugins")

  1000.         menu.addAction(self.ui.act_plugin_add)

  1001.         menu.addAction(self.ui.act_plugin_remove_all)

  1002. 

  1003.         menu.addSection("All plugins (macros)")

  1004.         menu.addAction(self.ui.act_plugins_enable)

  1005.         menu.addAction(self.ui.act_plugins_disable)

  1006.         menu.addSeparator()

  1007.         menu.addAction(self.ui.act_plugins_volume100)

  1008.         menu.addAction(self.ui.act_plugins_mute)

  1009.         menu.addSeparator()

  1010.         menu.addAction(self.ui.act_plugins_wet100)

  1011.         menu.addAction(self.ui.act_plugins_bypass)

  1012.         menu.addSeparator()

  1013.         menu.addAction(self.ui.act_plugins_center)

  1014.         menu.addSeparator()

  1015.         menu.addAction(self.ui.act_plugins_compact)

  1016.         menu.addAction(self.ui.act_plugins_expand)

  1017. 

  1018.         menu.exec_(QCursor.pos())

  1019. 

  1020.     @pyqtSlot()

  1021.     def slot_pluginAdd(self):

  1022.         data = self.showAddPluginDialog()

  1023. 

  1024.         if data is None:

  1025.             return

  1026. 

  1027.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1028. 

  1029.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1030.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1031. 

  1032.     @pyqtSlot()

  1033.     def slot_confirmRemoveAll(self):

  1034.         if self.fPluginCount == 0:

  1035.             return

  1036. 

  1037.         if QMessageBox.question(self, self.tr("Remove All"),

  1038.                                       self.tr("Are you sure you want to remove all plugins?"),

  1039.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1040.             return

  1041. 

  1042.         self.pluginRemoveAll()

  1043. 

  1044.     def pluginRemoveAll(self):

  1045.         if self.fPluginCount == 0:

  1046.             return

  1047. 

  1048.         # FIXME - this is not working

  1049.         # removing a plugin causes flicker, the rack-list becomes empty for some time

  1050.         # this breaks the remove-all animation, so don't bother using it

  1051.         if False and not self.host.isPlugin:

  1052.             self.projectLoadingStarted()

  1053. 

  1054.             app = QApplication.instance()

  1055.             app.processEvents()

  1056. 

  1057.             for i in reversed(range(self.fPluginCount)):

  1058.                 self.host.remove_plugin(i)

  1059.                 app.processEvents()

  1060. 

  1061.             self.projectLoadingFinished()

  1062. 

  1063.         self.fCurrentlyRemovingAllPlugins = True

  1064.         ok = self.host.remove_all_plugins()

  1065.         self.fCurrentlyRemovingAllPlugins = False

  1066. 

  1067.         if ok:

  1068.             self.removeAllPlugins()

  1069.         else:

  1070.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1071.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1072. 

  1073.         self.fCurrentlyRemovingAllPlugins = False

  1074. 

  1075.     @pyqtSlot()

  1076.     def slot_jackAppAdd(self):

  1077.         data = self.showAddJackAppDialog()

  1078. 

  1079.         if data is None:

  1080.             return

  1081. 

  1082.         filename, name, label = data

  1083. 

  1084.         if not filename:

  1085.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1086.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1087.             return

  1088. 

  1089.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1090.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1091.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1092. 

  1093.     # --------------------------------------------------------------------------------------------------------

  1094.     # Plugins (macros)

  1095. 

  1096.     @pyqtSlot()

  1097.     def slot_pluginsEnable(self):

  1098.         if not self.host.is_engine_running():

  1099.             return

  1100. 

  1101.         for pitem in self.fPluginList:

  1102.             if pitem is None:

  1103.                 break

  1104. 

  1105.             pitem.getWidget().setActive(True, True, True)

  1106. 

  1107.     @pyqtSlot()

  1108.     def slot_pluginsDisable(self):

  1109.         if not self.host.is_engine_running():

  1110.             return

  1111. 

  1112.         for pitem in self.fPluginList:

  1113.             if pitem is None:

  1114.                 break

  1115. 

  1116.             pitem.getWidget().setActive(False, True, True)

  1117. 

  1118.     @pyqtSlot()

  1119.     def slot_pluginsVolume100(self):

  1120.         if not self.host.is_engine_running():

  1121.             return

  1122. 

  1123.         for pitem in self.fPluginList:

  1124.             if pitem is None:

  1125.                 break

  1126. 

  1127.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1128. 

  1129.     @pyqtSlot()

  1130.     def slot_pluginsMute(self):

  1131.         if not self.host.is_engine_running():

  1132.             return

  1133. 

  1134.         for pitem in self.fPluginList:

  1135.             if pitem is None:

  1136.                 break

  1137. 

  1138.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1139. 

  1140.     @pyqtSlot()

  1141.     def slot_pluginsWet100(self):

  1142.         if not self.host.is_engine_running():

  1143.             return

  1144. 

  1145.         for pitem in self.fPluginList:

  1146.             if pitem is None:

  1147.                 break

  1148. 

  1149.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1150. 

  1151.     @pyqtSlot()

  1152.     def slot_pluginsBypass(self):

  1153.         if not self.host.is_engine_running():

  1154.             return

  1155. 

  1156.         for pitem in self.fPluginList:

  1157.             if pitem is None:

  1158.                 break

  1159. 

  1160.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1161. 

  1162.     @pyqtSlot()

  1163.     def slot_pluginsCenter(self):

  1164.         if not self.host.is_engine_running():

  1165.             return

  1166. 

  1167.         for pitem in self.fPluginList:

  1168.             if pitem is None:

  1169.                 break

  1170. 

  1171.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1172.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1173.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1174. 

  1175.     @pyqtSlot()

  1176.     def slot_pluginsCompact(self):

  1177.         for pitem in self.fPluginList:

  1178.             if pitem is None:

  1179.                 break

  1180.             pitem.compact()

  1181. 

  1182.     @pyqtSlot()

  1183.     def slot_pluginsExpand(self):

  1184.         for pitem in self.fPluginList:

  1185.             if pitem is None:

  1186.                 break

  1187.             pitem.expand()

  1188. 

  1189.     # --------------------------------------------------------------------------------------------------------

  1190.     # Plugins (host callbacks)

  1191. 

  1192.     @pyqtSlot(int, str)

  1193.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1194.         pitem = self.ui.listWidget.createItem(pluginId)

  1195. 

  1196.         self.fPluginList.append(pitem)

  1197.         self.fPluginCount += 1

  1198. 

  1199.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1200. 

  1201.     @pyqtSlot(int)

  1202.     def slot_handlePluginRemovedCallback(self, pluginId):

  1203.         patchcanvas.handlePluginRemoved(pluginId)

  1204. 

  1205.         if pluginId in self.fSelectedPlugins:

  1206.             self.clearSideStuff()

  1207. 

  1208.         pitem = self.getPluginItem(pluginId)

  1209. 

  1210.         self.fPluginCount -= 1

  1211.         self.fPluginList.pop(pluginId)

  1212.         self.ui.listWidget.takeItem(pluginId)

  1213. 

  1214.         if pitem is not None:

  1215.             pitem.close()

  1216.             del pitem

  1217. 

  1218.         # push all plugins 1 slot back

  1219.         for i in range(pluginId, self.fPluginCount):

  1220.             pitem = self.fPluginList[i]

  1221.             pitem.setPluginId(i)

  1222. 

  1223.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1224. 

  1225.     # --------------------------------------------------------------------------------------------------------

  1226.     # Canvas

  1227. 

  1228.     def clearSideStuff(self):

  1229.         self.scene.clearSelection()

  1230. 

  1231.         self.fSelectedPlugins = []

  1232. 

  1233.         self.ui.keyboard.allNotesOff(False)

  1234.         self.ui.scrollArea.setEnabled(False)

  1235. 

  1236.         self.fPeaksCleared = True

  1237.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1238.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1239.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1240.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1241. 

  1242.     def setupCanvas(self):

  1243.         pOptions = patchcanvas.options_t()

  1244.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1245.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1246.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1247.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1248.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1249. 

  1250.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1251.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1252.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1253.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1254.         else:

  1255.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1256. 

  1257.         pFeatures = patchcanvas.features_t()

  1258.         pFeatures.group_info   = False

  1259.         pFeatures.group_rename = False

  1260.         pFeatures.port_info    = False

  1261.         pFeatures.port_rename  = False

  1262.         pFeatures.handle_group_pos = True

  1263. 

  1264.         patchcanvas.setOptions(pOptions)

  1265.         patchcanvas.setFeatures(pFeatures)

  1266.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1267. 

  1268.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1269. 

  1270.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1271.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1272.             self.fCanvasHeight = int(tryCanvasSize[1])

  1273.         else:

  1274.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1275.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1276. 

  1277.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1278.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1279.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1280. 

  1281.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1282.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1283. 

  1284.     def updateCanvasInitialPos(self):

  1285.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1286.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1287.         patchcanvas.setInitialPos(x, y)

  1288. 

  1289.     def updateMiniCanvasLater(self):

  1290.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1291. 

  1292.     # --------------------------------------------------------------------------------------------------------

  1293.     # Canvas (menu actions)

  1294. 

  1295.     @pyqtSlot()

  1296.     def slot_canvasShowInternal(self):

  1297.         self.fExternalPatchbay = False

  1298.         self.ui.act_canvas_show_internal.blockSignals(True)

  1299.         self.ui.act_canvas_show_external.blockSignals(True)

  1300.         self.ui.act_canvas_show_internal.setChecked(True)

  1301.         self.ui.act_canvas_show_external.setChecked(False)

  1302.         self.ui.act_canvas_show_internal.blockSignals(False)

  1303.         self.ui.act_canvas_show_external.blockSignals(False)

  1304.         self.slot_canvasRefresh()

  1305. 

  1306.     @pyqtSlot()

  1307.     def slot_canvasShowExternal(self):

  1308.         self.fExternalPatchbay = True

  1309.         self.ui.act_canvas_show_internal.blockSignals(True)

  1310.         self.ui.act_canvas_show_external.blockSignals(True)

  1311.         self.ui.act_canvas_show_internal.setChecked(False)

  1312.         self.ui.act_canvas_show_external.setChecked(True)

  1313.         self.ui.act_canvas_show_internal.blockSignals(False)

  1314.         self.ui.act_canvas_show_external.blockSignals(False)

  1315.         self.slot_canvasRefresh()

  1316. 

  1317.     @pyqtSlot()

  1318.     def slot_canvasArrange(self):

  1319.         patchcanvas.arrange()

  1320. 

  1321.     @pyqtSlot()

  1322.     def slot_canvasRefresh(self):

  1323.         patchcanvas.clear()

  1324. 

  1325.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1326.             return

  1327. 

  1328.         if self.host.is_engine_running():

  1329.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1330. 

  1331.         self.updateMiniCanvasLater()

  1332. 

  1333.     @pyqtSlot()

  1334.     def slot_canvasZoomFit(self):

  1335.         self.scene.zoom_fit()

  1336. 

  1337.     @pyqtSlot()

  1338.     def slot_canvasZoomIn(self):

  1339.         self.scene.zoom_in()

  1340. 

  1341.     @pyqtSlot()

  1342.     def slot_canvasZoomOut(self):

  1343.         self.scene.zoom_out()

  1344. 

  1345.     @pyqtSlot()

  1346.     def slot_canvasZoomReset(self):

  1347.         self.scene.zoom_reset()

  1348. 

  1349.     @pyqtSlot()

  1350.     def slot_canvasSaveImage(self):

  1351.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1352. 

  1353.         # FIXME use ok value, test if it works as expected

  1354.         if not newPath:

  1355.             return

  1356. 

  1357.         self.scene.clearSelection()

  1358. 

  1359.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1360.             imgFormat = "JPG"

  1361.         elif newPath.lower().endswith((".png",)):

  1362.             imgFormat = "PNG"

  1363.         else:

  1364.             # File-dialog may not auto-add the extension

  1365.             imgFormat = "PNG"

  1366.             newPath  += ".png"

  1367. 

  1368.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1369.         painter = QPainter(self.fExportImage)

  1370.         painter.save()

  1371.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1372.         painter.setRenderHint(QPainter.TextAntialiasing)

  1373.         self.scene.render(painter)

  1374.         self.fExportImage.save(newPath, imgFormat, 100)

  1375.         painter.restore()

  1376. 

  1377.     # --------------------------------------------------------------------------------------------------------

  1378.     # Canvas (canvas callbacks)

  1379. 

  1380.     @pyqtSlot(int, int, QPointF)

  1381.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1382.         self.updateMiniCanvasLater()

  1383. 

  1384.     @pyqtSlot()

  1385.     def slot_canvasSelectionChanged(self):

  1386.         self.updateMiniCanvasLater()

  1387. 

  1388.     @pyqtSlot(float)

  1389.     def slot_canvasScaleChanged(self, scale):

  1390.         self.ui.miniCanvasPreview.setViewScale(scale)

  1391. 

  1392.     @pyqtSlot(list)

  1393.     def slot_canvasPluginSelected(self, pluginList):

  1394.         self.ui.keyboard.allNotesOff(False)

  1395.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1396.         self.fSelectedPlugins = pluginList

  1397. 

  1398.     # --------------------------------------------------------------------------------------------------------

  1399.     # Canvas (host callbacks)

  1400. 

  1401.     @pyqtSlot(int, int, int, str)

  1402.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1403.         pcSplit = patchcanvas.SPLIT_UNDEF

  1404.         pcIcon  = patchcanvas.ICON_APPLICATION

  1405. 

  1406.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1407.             pcIcon = patchcanvas.ICON_PLUGIN

  1408.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1409.             pcIcon = patchcanvas.ICON_HARDWARE

  1410.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1411.             pass

  1412.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1413.             pcIcon = patchcanvas.ICON_DISTRHO

  1414.         elif clientIcon == PATCHBAY_ICON_FILE:

  1415.             pcIcon = patchcanvas.ICON_FILE

  1416. 

  1417.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1418. 

  1419.         self.updateMiniCanvasLater()

  1420. 

  1421.         if pluginId < 0:

  1422.             return

  1423.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1424.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1425.             return

  1426. 

  1427.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1428.             hasCustomUI = False

  1429.         else:

  1430.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1431. 

  1432.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1433. 

  1434.     @pyqtSlot(int)

  1435.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1436.         patchcanvas.removeGroup(clientId)

  1437.         self.updateMiniCanvasLater()

  1438. 

  1439.     @pyqtSlot(int, str)

  1440.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1441.         patchcanvas.renameGroup(clientId, newClientName)

  1442.         self.updateMiniCanvasLater()

  1443. 

  1444.     @pyqtSlot(int, int, int)

  1445.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1446.         pcIcon = patchcanvas.ICON_APPLICATION

  1447. 

  1448.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1449.             pcIcon = patchcanvas.ICON_PLUGIN

  1450.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1451.             pcIcon = patchcanvas.ICON_HARDWARE

  1452.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1453.             pass

  1454.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1455.             pcIcon = patchcanvas.ICON_DISTRHO

  1456.         elif clientIcon == PATCHBAY_ICON_FILE:

  1457.             pcIcon = patchcanvas.ICON_FILE

  1458. 

  1459.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1460.         self.updateMiniCanvasLater()

  1461. 

  1462.         if pluginId < 0:

  1463.             return

  1464.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1465.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1466.             return

  1467. 

  1468.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1469.             hasCustomUI = False

  1470.         else:

  1471.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1472. 

  1473.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1474. 

  1475.     @pyqtSlot(int, int, int, str)

  1476.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1477.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1478.             portMode = patchcanvas.PORT_MODE_INPUT

  1479.         else:

  1480.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1481. 

  1482.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1483.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1484.             isAlternate = False

  1485.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1486.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1487.             isAlternate = True

  1488.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1489.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1490.             isAlternate = False

  1491.         else:

  1492.             portType    = patchcanvas.PORT_TYPE_NULL

  1493.             isAlternate = False

  1494. 

  1495.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1496.         self.updateMiniCanvasLater()

  1497. 

  1498.     @pyqtSlot(int, int)

  1499.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1500.         patchcanvas.removePort(groupId, portId)

  1501.         self.updateMiniCanvasLater()

  1502. 

  1503.     @pyqtSlot(int, int, str)

  1504.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1505.         patchcanvas.renamePort(groupId, portId, newPortName)

  1506.         self.updateMiniCanvasLater()

  1507. 

  1508.     @pyqtSlot(int, int, int, int, int)

  1509.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1510.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1511.         self.updateMiniCanvasLater()

  1512. 

  1513.     @pyqtSlot(int, int, int)

  1514.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1515.         patchcanvas.disconnectPorts(connectionId)

  1516.         self.updateMiniCanvasLater()

  1517. 

  1518.     # --------------------------------------------------------------------------------------------------------

  1519.     # Settings

  1520. 

  1521.     def saveSettings(self):

  1522.         settings = QSettings()

  1523. 

  1524.         settings.setValue("Geometry", self.saveGeometry())

  1525.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1526.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1527. 

  1528.         diskFolders = []

  1529. 

  1530.         for i in range(self.ui.cb_disk.count()):

  1531.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1532. 

  1533.         settings.setValue("DiskFolders", diskFolders)

  1534.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1535. 

  1536.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1537.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1538.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1539.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1540. 

  1541.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1542.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1543. 

  1544.     def loadSettings(self, firstTime):

  1545.         settings = QSettings()

  1546. 

  1547.         if firstTime:

  1548.             self.restoreGeometry(settings.value("Geometry", b""))

  1549. 

  1550.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1551.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1552.             self.ui.toolBar.setEnabled(showToolbar)

  1553.             self.ui.toolBar.setVisible(showToolbar)

  1554. 

  1555.             #if settings.contains("SplitterState"):

  1556.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1557.             #else:

  1558.                 #self.ui.splitter.setSizes([210, 99999])

  1559. 

  1560.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1561.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1562.             self.slot_showSidePanel(showSidePanel)

  1563. 

  1564.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1565. 

  1566.             self.ui.cb_disk.setItemData(0, HOME)

  1567. 

  1568.             for i in range(len(diskFolders)):

  1569.                 if i == 0: continue

  1570.                 folder = diskFolders[i]

  1571.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1572. 

  1573.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1574.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1575. 

  1576.             showMeters = settings.value("ShowMeters", True, type=bool)

  1577.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1578.             self.ui.peak_in.setVisible(showMeters)

  1579.             self.ui.peak_out.setVisible(showMeters)

  1580. 

  1581.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1582.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1583.             self.ui.scrollArea.setVisible(showKeyboard)

  1584. 

  1585.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1586. 

  1587.         # TODO - complete this

  1588. 

  1589.         self.fSavedSettings = {

  1590.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1591.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1592.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1593.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1594.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1595.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1596.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1597.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1598.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1599.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1600.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1601.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1602.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1603.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1604.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1605.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1606.         }

  1607. 

  1608.         settings = QSettings("falkTX", "Carla2")

  1609. 

  1610.         if self.host.experimental and not self.host.isControl:

  1611.             self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1612.                                                            CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1613.         else:

  1614.             self.ui.act_add_jack.setVisible(False)

  1615. 

  1616.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1617. 

  1618.         setEngineSettings(self.host)

  1619.         self.restartTimersIfNeeded()

  1620. 

  1621.     # --------------------------------------------------------------------------------------------------------

  1622.     # Settings (helpers)

  1623. 

  1624.     def enableTransport(self, enabled):

  1625.         self.ui.group_transport_controls.setEnabled(enabled)

  1626.         self.ui.group_transport_settings.setEnabled(enabled)

  1627. 

  1628.     @pyqtSlot()

  1629.     def slot_restoreCanvasScrollbarValues(self):

  1630.         settings = QSettings()

  1631.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1632.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1633. 

  1634.     # --------------------------------------------------------------------------------------------------------

  1635.     # Settings (menu actions)

  1636. 

  1637.     @pyqtSlot(bool)

  1638.     def slot_showSidePanel(self, yesNo):

  1639.         self.ui.dockWidget.setEnabled(yesNo)

  1640.         self.ui.dockWidget.setVisible(yesNo)

  1641. 

  1642.     @pyqtSlot(bool)

  1643.     def slot_showToolbar(self, yesNo):

  1644.         self.ui.toolBar.setEnabled(yesNo)

  1645.         self.ui.toolBar.setVisible(yesNo)

  1646. 

  1647.     @pyqtSlot(bool)

  1648.     def slot_showCanvasMeters(self, yesNo):

  1649.         self.ui.peak_in.setVisible(yesNo)

  1650.         self.ui.peak_out.setVisible(yesNo)

  1651.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1652. 

  1653.     @pyqtSlot(bool)

  1654.     def slot_showCanvasKeyboard(self, yesNo):

  1655.         self.ui.scrollArea.setVisible(yesNo)

  1656.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1657. 

  1658.     @pyqtSlot()

  1659.     def slot_configureCarla(self):

  1660.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1661.         if not dialog.exec_():

  1662.             return

  1663. 

  1664.         self.loadSettings(False)

  1665. 

  1666.         patchcanvas.clear()

  1667. 

  1668.         self.setupCanvas()

  1669.         self.slot_miniCanvasCheckAll()

  1670. 

  1671.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1672.             pass

  1673.         elif self.host.is_engine_running():

  1674.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1675. 

  1676.     # --------------------------------------------------------------------------------------------------------

  1677.     # About (menu actions)

  1678. 

  1679.     @pyqtSlot()

  1680.     def slot_aboutCarla(self):

  1681.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1682. 

  1683.     @pyqtSlot()

  1684.     def slot_aboutQt(self):

  1685.         QApplication.instance().aboutQt()

  1686. 

  1687.     # --------------------------------------------------------------------------------------------------------

  1688.     # Disk (menu actions)

  1689. 

  1690.     @pyqtSlot(int)

  1691.     def slot_diskFolderChanged(self, index):

  1692.         if index < 0:

  1693.             return

  1694.         elif index == 0:

  1695.             filename = HOME

  1696.             self.ui.b_disk_remove.setEnabled(False)

  1697.         else:

  1698.             filename = self.ui.cb_disk.itemData(index)

  1699.             self.ui.b_disk_remove.setEnabled(True)

  1700. 

  1701.         self.fDirModel.setRootPath(filename)

  1702.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1703. 

  1704.     @pyqtSlot()

  1705.     def slot_diskFolderAdd(self):

  1706.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1707. 

  1708.         if newPath:

  1709.             if newPath[-1] == os.sep:

  1710.                 newPath = newPath[:-1]

  1711.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1712.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1713.             self.ui.b_disk_remove.setEnabled(True)

  1714. 

  1715.     @pyqtSlot()

  1716.     def slot_diskFolderRemove(self):

  1717.         index = self.ui.cb_disk.currentIndex()

  1718. 

  1719.         if index <= 0:

  1720.             return

  1721. 

  1722.         self.ui.cb_disk.removeItem(index)

  1723. 

  1724.         if self.ui.cb_disk.currentIndex() == 0:

  1725.             self.ui.b_disk_remove.setEnabled(False)

  1726. 

  1727.     @pyqtSlot(QModelIndex)

  1728.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1729.         filename = self.fDirModel.filePath(modelIndex)

  1730. 

  1731.         if not self.ui.listWidget.isDragUrlValid(filename):

  1732.             return

  1733. 

  1734.         if not self.host.load_file(filename):

  1735.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1736.                              self.tr("Failed to load file"),

  1737.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1738. 

  1739.     # --------------------------------------------------------------------------------------------------------

  1740.     # Transport

  1741. 

  1742.     def refreshTransport(self, forced = False):

  1743.         if not self.isVisible():

  1744.             return

  1745.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1746.             return

  1747. 

  1748.         timeInfo = self.host.get_transport_info()

  1749.         playing  = timeInfo['playing']

  1750.         frame    = timeInfo['frame']

  1751.         bpm      = timeInfo['bpm']

  1752. 

  1753.         if playing != self.fLastTransportState or forced:

  1754.             if playing:

  1755.                 icon = getIcon("media-playback-pause")

  1756.                 self.ui.b_transport_play.setChecked(True)

  1757.                 self.ui.b_transport_play.setIcon(icon)

  1758.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1759.             else:

  1760.                 icon = getIcon("media-playback-start")

  1761.                 self.ui.b_transport_play.setChecked(False)

  1762.                 self.ui.b_transport_play.setIcon(icon)

  1763.                 #self.ui.b_play.setText(self.tr("&Play"))

  1764. 

  1765.             self.fLastTransportState = playing

  1766. 

  1767.         if frame != self.fLastTransportFrame or forced:

  1768.             self.fLastTransportFrame = frame

  1769. 

  1770.             time = frame / self.fSampleRate

  1771.             secs =  time % 60

  1772.             mins = (time / 60) % 60

  1773.             hrs  = (time / 3600) % 60

  1774.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1775. 

  1776.             frame1 =  frame % 1000

  1777.             frame2 = (frame / 1000) % 1000

  1778.             frame3 = (frame / 1000000) % 1000

  1779.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1780. 

  1781.             bar  = timeInfo['bar']

  1782.             beat = timeInfo['beat']

  1783.             tick = timeInfo['tick']

  1784.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1785. 

  1786.         if bpm != self.fLastTransportBPM or forced:

  1787.             self.fLastTransportBPM = bpm

  1788. 

  1789.             if bpm > 0.0:

  1790.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1791.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1792.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1793.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1794.             else:

  1795.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1796. 

  1797.     # --------------------------------------------------------------------------------------------------------

  1798.     # Transport (menu actions)

  1799. 

  1800.     @pyqtSlot(bool)

  1801.     def slot_transportPlayPause(self, toggled):

  1802.         if self.host.isPlugin or not self.host.is_engine_running():

  1803.             return

  1804. 

  1805.         if toggled:

  1806.             self.host.transport_play()

  1807.         else:

  1808.             self.host.transport_pause()

  1809. 

  1810.         self.refreshTransport()

  1811. 

  1812.     @pyqtSlot()

  1813.     def slot_transportStop(self):

  1814.         if self.host.isPlugin or not self.host.is_engine_running():

  1815.             return

  1816. 

  1817.         self.host.transport_pause()

  1818.         self.host.transport_relocate(0)

  1819. 

  1820.         self.refreshTransport()

  1821. 

  1822.     @pyqtSlot()

  1823.     def slot_transportBackwards(self):

  1824.         if self.host.isPlugin or not self.host.is_engine_running():

  1825.             return

  1826. 

  1827.         newFrame = self.host.get_current_transport_frame() - 100000

  1828. 

  1829.         if newFrame < 0:

  1830.             newFrame = 0

  1831. 

  1832.         self.host.transport_relocate(newFrame)

  1833. 

  1834.     @pyqtSlot(float)

  1835.     def slot_transportBpmChanged(self, newValue):

  1836.         self.host.transport_bpm(newValue)

  1837. 

  1838.     @pyqtSlot()

  1839.     def slot_transportForwards(self):

  1840.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1841.             return

  1842. 

  1843.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1844.         self.host.transport_relocate(newFrame)

  1845. 

  1846.     @pyqtSlot(bool)

  1847.     def slot_transportJackEnabled(self, clicked):

  1848.         if not self.host.is_engine_running():

  1849.             return

  1850.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1851.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1852.                                     self.host.transportMode,

  1853.                                     self.host.transportExtra)

  1854. 

  1855.     @pyqtSlot(bool)

  1856.     def slot_transportLinkEnabled(self, clicked):

  1857.         if not self.host.is_engine_running():

  1858.             return

  1859.         extra = ":link:" if clicked else ""

  1860.         self.host.transportExtra = extra

  1861.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1862.                                     self.host.transportMode,

  1863.                                     self.host.transportExtra)

  1864. 

  1865.     # --------------------------------------------------------------------------------------------------------

  1866.     # Canvas scrollbars

  1867. 

  1868.     @pyqtSlot(int)

  1869.     def slot_horizontalScrollBarChanged(self, value):

  1870.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1871.         if maximum == 0:

  1872.             xp = 0

  1873.         else:

  1874.             xp = float(value) / maximum

  1875.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1876.         self.updateCanvasInitialPos()

  1877. 

  1878.     @pyqtSlot(int)

  1879.     def slot_verticalScrollBarChanged(self, value):

  1880.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1881.         if maximum == 0:

  1882.             yp = 0

  1883.         else:

  1884.             yp = float(value) / maximum

  1885.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1886.         self.updateCanvasInitialPos()

  1887. 

  1888.     # --------------------------------------------------------------------------------------------------------

  1889.     # Canvas keyboard

  1890. 

  1891.     @pyqtSlot(int)

  1892.     def slot_noteOn(self, note):

  1893.         for pluginId in self.fSelectedPlugins:

  1894.             self.host.send_midi_note(pluginId, 0, note, 100)

  1895. 

  1896.             pedit = self.getPluginEditDialog(pluginId)

  1897.             pedit.noteOn(0, note, 100)

  1898. 

  1899.     @pyqtSlot(int)

  1900.     def slot_noteOff(self, note):

  1901.         for pluginId in self.fSelectedPlugins:

  1902.             self.host.send_midi_note(pluginId, 0, note, 0)

  1903. 

  1904.             pedit = self.getPluginEditDialog(pluginId)

  1905.             pedit.noteOff(0, note)

  1906. 

  1907.     # --------------------------------------------------------------------------------------------------------

  1908.     # Canvas keyboard (host callbacks)

  1909. 

  1910.     @pyqtSlot(int, int, int, int)

  1911.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1912.         if pluginId in self.fSelectedPlugins:

  1913.             self.ui.keyboard.sendNoteOn(note, False)

  1914. 

  1915.     @pyqtSlot(int, int, int)

  1916.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1917.         if pluginId in self.fSelectedPlugins:

  1918.             self.ui.keyboard.sendNoteOff(note, False)

  1919. 

  1920.     # --------------------------------------------------------------------------------------------------------

  1921. 

  1922.     @pyqtSlot(int)

  1923.     def slot_handleUpdateCallback(self, pluginId):

  1924.         pitem = self.getPluginItem(pluginId)

  1925. 

  1926.         if pitem is None:

  1927.             return

  1928. 

  1929.         wasCompacted = pitem.isCompacted()

  1930.         isCompacted  = wasCompacted

  1931. 

  1932.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  1933.         if not check:

  1934.             return

  1935.         isCompacted = bool(check == "true")

  1936. 

  1937.         if wasCompacted == isCompacted:

  1938.             return

  1939. 

  1940.         pitem.recreateWidget(True)

  1941. 

  1942.     # --------------------------------------------------------------------------------------------------------

  1943.     # MiniCanvas stuff

  1944. 

  1945.     @pyqtSlot()

  1946.     def slot_miniCanvasCheckAll(self):

  1947.         self.slot_miniCanvasCheckSize()

  1948.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1949.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1950. 

  1951.     @pyqtSlot()

  1952.     def slot_miniCanvasCheckSize(self):

  1953.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1954.             return

  1955. 

  1956.         currentIndex = self.ui.tabWidget.currentIndex()

  1957. 

  1958.         if currentIndex == 1:

  1959.             width  = self.ui.graphicsView.width()

  1960.             height = self.ui.graphicsView.height()

  1961.         else:

  1962.             self.ui.tabWidget.blockSignals(True)

  1963.             self.ui.tabWidget.setCurrentIndex(1)

  1964.             width  = self.ui.graphicsView.width()

  1965.             height = self.ui.graphicsView.height()

  1966.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1967.             self.ui.tabWidget.blockSignals(False)

  1968. 

  1969.         self.scene.updateLimits()

  1970. 

  1971.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1972. 

  1973.     @pyqtSlot(float, float)

  1974.     def slot_miniCanvasMoved(self, xp, yp):

  1975.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1976.         vsb = self.ui.graphicsView.verticalScrollBar()

  1977.         hsb.setValue(xp * hsb.maximum())

  1978.         vsb.setValue(yp * vsb.maximum())

  1979.         self.updateCanvasInitialPos()

  1980. 

  1981.     # --------------------------------------------------------------------------------------------------------

  1982.     # Timers

  1983. 

  1984.     def startTimers(self):

  1985.         if self.fIdleTimerFast == 0:

  1986.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1987. 

  1988.         if self.fIdleTimerSlow == 0:

  1989.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1990. 

  1991.     def restartTimersIfNeeded(self):

  1992.         if self.fIdleTimerFast != 0:

  1993.             self.killTimer(self.fIdleTimerFast)

  1994.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1995. 

  1996.         if self.fIdleTimerSlow != 0:

  1997.             self.killTimer(self.fIdleTimerSlow)

  1998.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1999. 

  2000.     def killTimers(self):

  2001.         if self.fIdleTimerFast != 0:

  2002.             self.killTimer(self.fIdleTimerFast)

  2003.             self.fIdleTimerFast = 0

  2004. 

  2005.         if self.fIdleTimerSlow != 0:

  2006.             self.killTimer(self.fIdleTimerSlow)

  2007.             self.fIdleTimerSlow = 0

  2008. 

  2009.     # --------------------------------------------------------------------------------------------------------

  2010.     # Misc

  2011. 

  2012.     @pyqtSlot(int)

  2013.     def slot_tabChanged(self, index):

  2014.         if index != 1:

  2015.             return

  2016. 

  2017.         self.ui.graphicsView.setFocus()

  2018. 

  2019.     @pyqtSlot(int)

  2020.     def slot_handleReloadAllCallback(self, pluginId):

  2021.         if pluginId >= self.fPluginCount:

  2022.             return

  2023. 

  2024.         pitem = self.fPluginList[pluginId]

  2025.         if pitem is None:

  2026.             return

  2027. 

  2028.         pitem.recreateWidget()

  2029. 

  2030.     # --------------------------------------------------------------------------------------------------------

  2031. 

  2032.     @pyqtSlot(int, int, str)

  2033.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  2034.         # Error

  2035.         if value1 == 0:

  2036.             pass

  2037. 

  2038.         # Reply

  2039.         elif value1 == 1:

  2040.             self.fFirstEngineInit    = False

  2041.             self.fSessionManagerName = valueStr

  2042.             self.setProperWindowTitle()

  2043. 

  2044.         # Open

  2045.         elif value1 == 2:

  2046.             self.fClientName      = os.path.basename(valueStr)

  2047.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2048.             self.setProperWindowTitle()

  2049. 

  2050.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2051.             self.slot_engineStop(True)

  2052.             return

  2053. 

  2054.         # Save

  2055.         elif value1 == 3:

  2056.             self.saveProjectNow()

  2057. 

  2058.         # Session is Loaded

  2059.         elif value1 == 4:

  2060.             pass

  2061. 

  2062.         # Show Optional Gui

  2063.         elif value1 == 5:

  2064.             self.show()

  2065. 

  2066.         # Hide Optional Gui

  2067.         elif value1 == 6:

  2068.             self.hide()

  2069. 

  2070.         self.host.nsm_ready(value1)

  2071. 

  2072.     # --------------------------------------------------------------------------------------------------------

  2073. 

  2074.     def fixLogText(self, text):

  2075.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2076. 

  2077.     @pyqtSlot(int, int, int, float, str)

  2078.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  2079.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2080. 

  2081.     @pyqtSlot(str)

  2082.     def slot_handleInfoCallback(self, info):

  2083.         QMessageBox.information(self, "Information", info)

  2084. 

  2085.     @pyqtSlot(str)

  2086.     def slot_handleErrorCallback(self, error):

  2087.         QMessageBox.critical(self, "Error", error)

  2088. 

  2089.     @pyqtSlot()

  2090.     def slot_handleQuitCallback(self):

  2091.         pass # TODO

  2092. 

  2093.     # --------------------------------------------------------------------------------------------------------

  2094. 

  2095.     @pyqtSlot()

  2096.     def slot_handleSIGUSR1(self):

  2097.         print("Got SIGUSR1 -> Saving project now")

  2098.         self.slot_fileSave()

  2099. 

  2100.     @pyqtSlot()

  2101.     def slot_handleSIGTERM(self):

  2102.         print("Got SIGTERM -> Closing now")

  2103.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2104.         self.slot_engineStop(True)

  2105. 

  2106.     # --------------------------------------------------------------------------------------------------------

  2107.     # Internal stuff

  2108. 

  2109.     def getExtraPtr(self, plugin):

  2110.         ptype = plugin['type']

  2111. 

  2112.         if ptype == PLUGIN_LADSPA:

  2113.             uniqueId = plugin['uniqueId']

  2114. 

  2115.             self.maybeLoadRDFs()

  2116. 

  2117.             for rdfItem in self.fLadspaRdfList:

  2118.                 if rdfItem.UniqueID == uniqueId:

  2119.                     return pointer(rdfItem)

  2120. 

  2121.         elif ptype == PLUGIN_SF2:

  2122.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2123.                 return self._true

  2124. 

  2125.         return None

  2126. 

  2127.     def maybeLoadRDFs(self):

  2128.         if not self.fLadspaRdfNeedsUpdate:

  2129.             return

  2130. 

  2131.         self.fLadspaRdfNeedsUpdate = False

  2132.         self.fLadspaRdfList = []

  2133. 

  2134.         if not haveLRDF:

  2135.             return

  2136. 

  2137.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2138.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2139. 

  2140.         if os.path.exists(frLadspaFile):

  2141.             frLadspa = open(frLadspaFile, 'r')

  2142. 

  2143.             try:

  2144.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2145.             except:

  2146.                 pass

  2147. 

  2148.             frLadspa.close()

  2149. 

  2150.     # --------------------------------------------------------------------------------------------------------

  2151. 

  2152.     def getPluginCount(self):

  2153.         return self.fPluginCount

  2154. 

  2155.     def getPluginItem(self, pluginId):

  2156.         if pluginId >= self.fPluginCount:

  2157.             return None

  2158. 

  2159.         pitem = self.fPluginList[pluginId]

  2160.         if pitem is None:

  2161.             return None

  2162.         #if False:

  2163.             #return CarlaRackItem(self, 0, False)

  2164. 

  2165.         return pitem

  2166. 

  2167.     def getPluginEditDialog(self, pluginId):

  2168.         if pluginId >= self.fPluginCount:

  2169.             return None

  2170. 

  2171.         pitem = self.fPluginList[pluginId]

  2172.         if pitem is None:

  2173.             return None

  2174.         if False:

  2175.             return PluginEdit(self, self.host, 0)

  2176. 

  2177.         return pitem.getEditDialog()

  2178. 

  2179.     def getPluginSlotWidget(self, pluginId):

  2180.         if pluginId >= self.fPluginCount:

  2181.             return None

  2182. 

  2183.         pitem = self.fPluginList[pluginId]

  2184.         if pitem is None:

  2185.             return None

  2186.         #if False:

  2187.             #return AbstractPluginSlot()

  2188. 

  2189.         return pitem.getWidget()

  2190. 

  2191.     # --------------------------------------------------------------------------------------------------------

  2192. 

  2193.     def waitForPendingEvents(self):

  2194.         pass

  2195. 

  2196.     # --------------------------------------------------------------------------------------------------------

  2197.     # show/hide event

  2198. 

  2199.     def showEvent(self, event):

  2200.         self.refreshTransport(True)

  2201.         QMainWindow.showEvent(self, event)

  2202. 

  2203.         # set our gui as parent for all plugins UIs

  2204.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2205.             if MACOS:

  2206.                 nsViewPtr = int(self.winId())

  2207.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2208.             else:

  2209.                 winIdStr = "%x" % int(self.winId())

  2210.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2211. 

  2212.     def hideEvent(self, event):

  2213.         # disable parent

  2214.         if not (self.host.isControl or self.host.isPlugin):

  2215.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2216. 

  2217.         QMainWindow.hideEvent(self, event)

  2218. 

  2219.     # --------------------------------------------------------------------------------------------------------

  2220.     # resize event

  2221. 

  2222.     def resizeEvent(self, event):

  2223.         QMainWindow.resizeEvent(self, event)

  2224.         self.slot_miniCanvasCheckSize()

  2225. 

  2226.     # --------------------------------------------------------------------------------------------------------

  2227.     # timer event

  2228. 

  2229.     def idleFast(self):

  2230.         self.host.engine_idle()

  2231.         self.refreshTransport()

  2232. 

  2233.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2234.             return

  2235. 

  2236.         for pitem in self.fPluginList:

  2237.             if pitem is None:

  2238.                 break

  2239. 

  2240.             pitem.getWidget().idleFast()

  2241. 

  2242.         for pluginId in self.fSelectedPlugins:

  2243.             self.fPeaksCleared = False

  2244.             if self.ui.peak_in.isVisible():

  2245.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2246.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2247.             if self.ui.peak_out.isVisible():

  2248.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2249.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2250.             return

  2251. 

  2252.         if self.fPeaksCleared:

  2253.             return

  2254. 

  2255.         self.fPeaksCleared = True

  2256.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2257.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2258.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2259.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2260. 

  2261.     def idleSlow(self):

  2262.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2263.             return

  2264. 

  2265.         for pitem in self.fPluginList:

  2266.             if pitem is None:

  2267.                 break

  2268. 

  2269.             pitem.getWidget().idleSlow()

  2270. 

  2271.     def timerEvent(self, event):

  2272.         if event.timerId() == self.fIdleTimerFast:

  2273.             self.idleFast()

  2274. 

  2275.         elif event.timerId() == self.fIdleTimerSlow:

  2276.             self.idleSlow()

  2277. 

  2278.         QMainWindow.timerEvent(self, event)

  2279. 

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

  2281.     # color/style change event

  2282. 

  2283.     def changeEvent(self, event):

  2284.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2285.             self.updateStyle()

  2286.         QWidget.changeEvent(self, event)

  2287. 

  2288.     def updateStyle(self):

  2289.         # Rack padding images setup

  2290.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2291.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2292. 

  2293.         min_value = 0.07

  2294. 

  2295.         if PYQT_VERSION >= 0x50600:

  2296.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2297.         else:

  2298.             value_fix = 1.5

  2299. 

  2300.         bg_color = self.ui.rack.palette().window().color()

  2301.         bg_value = 1.0 - bg_color.blackF()

  2302.         if bg_value != 0.0 and bg_value < min_value:

  2303.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2304.         else:

  2305.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2306. 

  2307.         painter = QPainter()

  2308.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2309. 

  2310.         painter.begin(rack_imgL)

  2311.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2312.         painter.setBrush(pad_color)

  2313.         painter.drawRect(fillRect)

  2314.         painter.end()

  2315.         rack_pixmapL = QPixmap(rack_imgL)

  2316.         self.imgL_palette = QPalette()

  2317.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2318.         self.ui.pad_left.setPalette(self.imgL_palette)

  2319.         self.ui.pad_left.setAutoFillBackground(True)

  2320. 

  2321.         painter.begin(rack_imgR)

  2322.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2323.         painter.setBrush(pad_color)

  2324.         painter.drawRect(fillRect)

  2325.         painter.end()

  2326.         rack_pixmapR = QPixmap(rack_imgR)

  2327.         self.imgR_palette = QPalette()

  2328.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2329.         self.ui.pad_right.setPalette(self.imgR_palette)

  2330.         self.ui.pad_right.setAutoFillBackground(True)

  2331. 

  2332.     # --------------------------------------------------------------------------------------------------------

  2333.     # paint event

  2334. 

  2335.     #def paintEvent(self, event):

  2336.         #QMainWindow.paintEvent(self, event)

  2337. 

  2338.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2339.             #return

  2340. 

  2341.         #painter = QPainter(self)

  2342.         #painter.setBrush(QColor(36, 36, 36))

  2343.         #painter.setPen(QColor(62, 62, 62))

  2344.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2345. 

  2346.     # --------------------------------------------------------------------------------------------------------

  2347.     # close event

  2348. 

  2349.     def shouldIgnoreClose(self):

  2350.         if self.host.isControl or self.host.isPlugin:

  2351.             return False

  2352.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2353.             return False

  2354.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2355.             return QMessageBox.question(self, self.tr("Quit"),

  2356.                                               self.tr("Are you sure you want to quit Carla?"),

  2357.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2358.         return False

  2359. 

  2360.     def closeEvent(self, event):

  2361.         if self.shouldIgnoreClose():

  2362.             event.ignore()

  2363.             return

  2364. 

  2365.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2366.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2367.             self.fMacClosingHelper = False

  2368.             event.ignore()

  2369. 

  2370.             for i in reversed(range(self.fPluginCount)):

  2371.                 self.host.show_custom_ui(i, False)

  2372. 

  2373.             QTimer.singleShot(100, self.close)

  2374.             return

  2375. 

  2376.         self.killTimers()

  2377.         self.saveSettings()

  2378. 

  2379.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2380.             if not self.slot_engineStop(True):

  2381.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2382.                 event.ignore()

  2383.                 return

  2384. 

  2385.         QMainWindow.closeEvent(self, event)

  2386. 

  2387. # ------------------------------------------------------------------------------------------------

  2388. # Canvas callback

  2389. 

  2390. def canvasCallback(action, value1, value2, valueStr):

  2391.     host = gCarla.gui.host

  2392. 

  2393.     if action == patchcanvas.ACTION_GROUP_INFO:

  2394.         pass

  2395. 

  2396.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2397.         pass

  2398. 

  2399.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2400.         groupId = value1

  2401.         patchcanvas.splitGroup(groupId)

  2402.         gCarla.gui.updateMiniCanvasLater()

  2403. 

  2404.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2405.         groupId = value1

  2406.         patchcanvas.joinGroup(groupId)

  2407.         gCarla.gui.updateMiniCanvasLater()

  2408. 

  2409.     elif action == patchcanvas.ACTION_PORT_INFO:

  2410.         pass

  2411. 

  2412.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2413.         pass

  2414. 

  2415.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2416.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2417. 

  2418.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2419.             print("Connection failed:", host.get_last_error())

  2420. 

  2421.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2422.         connectionId = value1

  2423. 

  2424.         if not host.patchbay_disconnect(connectionId):

  2425.             print("Disconnect failed:", host.get_last_error())

  2426. 

  2427.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2428.         pluginId = value1

  2429. 

  2430.         if not host.clone_plugin(pluginId):

  2431.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2432.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2433. 

  2434.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2435.         pluginId = value1

  2436.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2437. 

  2438.         if pwidget is not None:

  2439.             pwidget.showEditDialog()

  2440. 

  2441.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2442.         pluginId = value1

  2443.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2444. 

  2445.         if pwidget is not None:

  2446.             pwidget.showRenameDialog()

  2447. 

  2448.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2449.         pluginId = value1

  2450.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2451. 

  2452.         if pwidget is not None:

  2453.             pwidget.showReplaceDialog()

  2454. 

  2455.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2456.         pluginId = value1

  2457. 

  2458.         if not host.remove_plugin(pluginId):

  2459.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2460.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2461. 

  2462.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2463.         pluginId = value1

  2464.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2465. 

  2466.         if pwidget is not None:

  2467.             pwidget.showCustomUI()

  2468. 

  2469.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2470.         gCarla.gui.showPluginActionsMenu()

  2471. 

  2472. # ------------------------------------------------------------------------------------------------------------

  2473. # Engine callback

  2474. 

  2475. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2476.     # kdevelop likes this :)

  2477.     if False: host = CarlaHostNull()

  2478. 

  2479.     valueStr = charPtrToString(valueStr)

  2480. 

  2481.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2482.         host.processMode   = value1

  2483.         host.transportMode = value2

  2484.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2485.         host.processMode   = value1

  2486.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2487.         host.transportMode  = value1

  2488.         host.transportExtra = valueStr

  2489. 

  2490.     if action == ENGINE_CALLBACK_DEBUG:

  2491.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2492.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2493.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2494.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2495.         host.PluginRemovedCallback.emit(pluginId)

  2496.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2497.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2498.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2499.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2500.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2501.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2502.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2503.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2504.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2505.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2506.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2507.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2508.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2509.         host.ProgramChangedCallback.emit(pluginId, value1)

  2510.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2511.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2512.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2513.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2514.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2515.         host.UiStateChangedCallback.emit(pluginId, value1)

  2516.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2517.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2518.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2519.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2520.     elif action == ENGINE_CALLBACK_UPDATE:

  2521.         host.UpdateCallback.emit(pluginId)

  2522.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2523.         host.ReloadInfoCallback.emit(pluginId)

  2524.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2525.         host.ReloadParametersCallback.emit(pluginId)

  2526.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2527.         host.ReloadProgramsCallback.emit(pluginId)

  2528.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2529.         host.ReloadAllCallback.emit(pluginId)

  2530.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2531.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2532.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2533.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2534.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2535.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2536.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2537.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2538.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2539.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2540.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2541.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2542.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2543.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2544.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2545.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2546.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2547.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2548.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2549.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2550.         host.EngineStartedCallback.emit(value1, value2, value3, valueStr)

  2551.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2552.         host.EngineStoppedCallback.emit()

  2553.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2554.         host.ProcessModeChangedCallback.emit(value1)

  2555.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2556.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2557.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2558.         host.BufferSizeChangedCallback.emit(value1)

  2559.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2560.         host.SampleRateChangedCallback.emit(value3)

  2561.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2562.         host.ProjectLoadFinishedCallback.emit()

  2563.     elif action == ENGINE_CALLBACK_NSM:

  2564.         host.NSMCallback.emit(value1, value2, valueStr)

  2565.     elif action == ENGINE_CALLBACK_IDLE:

  2566.         QApplication.processEvents()

  2567.     elif action == ENGINE_CALLBACK_INFO:

  2568.         host.InfoCallback.emit(valueStr)

  2569.     elif action == ENGINE_CALLBACK_ERROR:

  2570.         host.ErrorCallback.emit(valueStr)

  2571.     elif action == ENGINE_CALLBACK_QUIT:

  2572.         host.QuitCallback.emit()

  2573. 

  2574. # ------------------------------------------------------------------------------------------------------------

  2575. # File callback

  2576. 

  2577. def fileCallback(ptr, action, isDir, title, filter):

  2578.     title  = charPtrToString(title)

  2579.     filter = charPtrToString(filter)

  2580. 

  2581.     if action == FILE_CALLBACK_OPEN:

  2582.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2583.     elif action == FILE_CALLBACK_SAVE:

  2584.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2585.     else:

  2586.         ret, ok = ("", "")

  2587. 

  2588.     # FIXME use ok value, test if it works as expected

  2589.     if not ret:

  2590.         return None

  2591. 

  2592.     # FIXME

  2593.     global fileRet

  2594.     fileRet = c_char_p(ret.encode("utf-8"))

  2595.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2596.     return retval.contents.value

  2597. 

  2598. # ------------------------------------------------------------------------------------------------------------

  2599. # Init host

  2600. 

  2601. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2602.     pathBinaries, pathResources = getPaths(libPrefix)

  2603. 

  2604.     # --------------------------------------------------------------------------------------------------------

  2605.     # Check if we should open main lib as local or global

  2606. 

  2607.     settings = QSettings("falkTX", "Carla2")

  2608. 

  2609.     try:

  2610.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2611.     except:

  2612.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2613. 

  2614.     # --------------------------------------------------------------------------------------------------------

  2615.     # Fail if binary dir is not found

  2616. 

  2617.     if not os.path.exists(pathBinaries):

  2618.         if failError:

  2619.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2620.             sys.exit(1)

  2621.         return

  2622. 

  2623.     # --------------------------------------------------------------------------------------------------------

  2624.     # Set Carla library name

  2625. 

  2626.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2627.     libname   = os.path.join(pathBinaries, libname)

  2628.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2629. 

  2630.     # --------------------------------------------------------------------------------------------------------

  2631.     # Print info

  2632. 

  2633.     print("Carla %s started, status:" % VERSION)

  2634.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2635.     print("  Qt version:     %s" % qVersion())

  2636.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2637.     print("  Binary dir:     %s" % pathBinaries)

  2638.     print("  Resources dir:  %s" % pathResources)

  2639. 

  2640.     # --------------------------------------------------------------------------------------------------------

  2641.     # Init host

  2642. 

  2643.     if failError:

  2644.         # no try

  2645.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2646.     else:

  2647.         try:

  2648.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2649.         except:

  2650.             host = CarlaHostQtNull()

  2651. 

  2652.     host.isControl = isControl

  2653.     host.isPlugin  = isPlugin

  2654. 

  2655.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2656.     host.set_file_callback(fileCallback)

  2657. 

  2658.     # If it's a plugin the paths are already set

  2659.     if not isPlugin:

  2660.         host.pathBinaries  = pathBinaries

  2661.         host.pathResources = pathResources

  2662.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2663.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2664. 

  2665.         if not isControl:

  2666.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2667. 

  2668.     # --------------------------------------------------------------------------------------------------------

  2669.     # Init utils

  2670. 

  2671.     gCarla.utils = CarlaUtils(utilsname)

  2672.     gCarla.utils.set_process_name(os.path.basename(initName))

  2673. 

  2674.     try:

  2675.         sys.stdout.flush()

  2676.     except:

  2677.         pass

  2678. 

  2679.     sys.stdout = CarlaPrint(False)

  2680.     sys.stderr = CarlaPrint(True)

  2681.     sys.excepthook = sys_excepthook

  2682. 

  2683.     # --------------------------------------------------------------------------------------------------------

  2684.     # Done

  2685. 

  2686.     return host

  2687. 

  2688. # ------------------------------------------------------------------------------------------------------------

  2689. # Load host settings

  2690. 

  2691. def loadHostSettings(host):

  2692.     # kdevelop likes this :)

  2693.     if False: host = CarlaHostNull()

  2694. 

  2695.     settings = QSettings("falkTX", "Carla2")

  2696. 

  2697.     try:

  2698.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2699.     except:

  2700.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2701. 

  2702.     try:

  2703.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2704.     except:

  2705.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2706. 

  2707.     try:

  2708.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2709.     except:

  2710.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2711. 

  2712.     try:

  2713.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2714.     except:

  2715.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2716. 

  2717.     try:

  2718.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2719.     except:

  2720.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2721. 

  2722.     try:

  2723.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2724.     except:

  2725.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2726. 

  2727.     try:

  2728.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2729.     except:

  2730.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2731. 

  2732.     try:

  2733.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2734.     except:

  2735.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2736. 

  2737.     try:

  2738.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2739.     except:

  2740.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2741. 

  2742.     try:

  2743.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2744.     except:

  2745.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2746. 

  2747.     try:

  2748.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2749.     except:

  2750.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2751. 

  2752.     try:

  2753.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2754.     except:

  2755.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2756. 

  2757.     try:

  2758.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2759.     except:

  2760.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2761. 

  2762.     if host.isPlugin:

  2763.         return

  2764. 

  2765.     try:

  2766.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  2767.     except:

  2768.         host.transportExtra = ""

  2769. 

  2770.     # enums

  2771.     if host.audioDriverForced is None:

  2772.         try:

  2773.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2774.         except:

  2775.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2776. 

  2777.     if not host.processModeForced:

  2778.         try:

  2779.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2780.         except:

  2781.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2782. 

  2783.     host.nextProcessMode = host.processMode

  2784. 

  2785.     # --------------------------------------------------------------------------------------------------------

  2786.     # fix things if needed

  2787. 

  2788.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  2789.         if LADISH_APP_NAME:

  2790.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2791.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2792. 

  2793.         else:

  2794.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  2795. 

  2796.     if gCarla.nogui:

  2797.         host.showLogs = False

  2798. 

  2799.     # --------------------------------------------------------------------------------------------------------

  2800.     # run headless host now if nogui option enabled

  2801. 

  2802.     if gCarla.nogui:

  2803.         runHostWithoutUI(host)

  2804. 

  2805. # ------------------------------------------------------------------------------------------------------------

  2806. # Set host settings

  2807. 

  2808. def setHostSettings(host):

  2809.     # kdevelop likes this :)

  2810.     if False: host = CarlaHostNull()

  2811. 

  2812.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2813.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2814.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2815.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2816.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2817.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2818.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2819. 

  2820.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2821.         return

  2822. 

  2823.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2824.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  2825.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2826. 

  2827. # ------------------------------------------------------------------------------------------------------------

  2828. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2829. 

  2830. def setEngineSettings(host):

  2831.     # kdevelop likes this :)

  2832.     if False: host = CarlaHostNull()

  2833. 

  2834.     # --------------------------------------------------------------------------------------------------------

  2835.     # do nothing if control

  2836. 

  2837.     if host.isControl:

  2838.         return "Control"

  2839. 

  2840.     # --------------------------------------------------------------------------------------------------------

  2841. 

  2842.     settings = QSettings("falkTX", "Carla2")

  2843. 

  2844.     # --------------------------------------------------------------------------------------------------------

  2845.     # main settings

  2846. 

  2847.     setHostSettings(host)

  2848. 

  2849.     # --------------------------------------------------------------------------------------------------------

  2850.     # plugin paths

  2851. 

  2852.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2853.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2854.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2855.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2856.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  2857.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2858.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2859. 

  2860.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2861.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2862.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2863.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2864.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  2865.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2866.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2867. 

  2868.     # --------------------------------------------------------------------------------------------------------

  2869.     # don't continue if plugin

  2870. 

  2871.     if host.isPlugin:

  2872.         return "Plugin"

  2873. 

  2874.     # --------------------------------------------------------------------------------------------------------

  2875.     # wine settings

  2876. 

  2877.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2878.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2879.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2880.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2881.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2882.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2883. 

  2884.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2885.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2886.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2887.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2888.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2889.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2890. 

  2891.     # --------------------------------------------------------------------------------------------------------

  2892.     # driver and device settings

  2893. 

  2894.     # driver name

  2895.     if host.audioDriverForced is not None:

  2896.         audioDriver = host.audioDriverForced

  2897.     else:

  2898.         try:

  2899.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2900.         except:

  2901.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2902. 

  2903.     # driver options

  2904.     try:

  2905.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2906.     except:

  2907.         audioDevice = ""

  2908. 

  2909.     try:

  2910.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2911.     except:

  2912.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2913. 

  2914.     try:

  2915.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2916.     except:

  2917.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2918. 

  2919.     try:

  2920.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  2921.     except:

  2922.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  2923. 

  2924.     # Only setup audio things if engine is not running

  2925.     if not host.is_engine_running():

  2926.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  2927. 

  2928.         if not audioDriver.startswith("JACK"):

  2929.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2930.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2931.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  2932. 

  2933.     # --------------------------------------------------------------------------------------------------------

  2934.     # fix things if needed

  2935. 

  2936.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2937.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2938.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  2939. 

  2940.     # --------------------------------------------------------------------------------------------------------

  2941.     # return selected driver name

  2942. 

  2943.     return audioDriver

  2944. 

  2945. # ------------------------------------------------------------------------------------------------------------

  2946. # Run Carla without showing UI

  2947. 

  2948. def runHostWithoutUI(host):

  2949.     # kdevelop likes this :)

  2950.     if False: host = CarlaHostNull()

  2951. 

  2952.     # --------------------------------------------------------------------------------------------------------

  2953.     # Some initial checks

  2954. 

  2955.     if not gCarla.nogui:

  2956.         return

  2957. 

  2958.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2959. 

  2960.     if not projectFile:

  2961.         print("Carla no-gui mode can only be used together with a project file.")

  2962.         sys.exit(1)

  2963. 

  2964.     # --------------------------------------------------------------------------------------------------------

  2965.     # Additional imports

  2966. 

  2967.     from time import sleep

  2968. 

  2969.     # --------------------------------------------------------------------------------------------------------

  2970.     # Init engine

  2971. 

  2972.     audioDriver = setEngineSettings(host)

  2973.     if not host.engine_init(audioDriver, "Carla"):

  2974.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2975.         sys.exit(1)

  2976. 

  2977.     if not host.load_project(projectFile):

  2978.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2979.         host.engine_close()

  2980.         sys.exit(1)

  2981. 

  2982.     # --------------------------------------------------------------------------------------------------------

  2983.     # Idle

  2984. 

  2985.     print("Carla ready!")

  2986. 

  2987.     while host.is_engine_running() and not gCarla.term:

  2988.         host.engine_idle()

  2989.         sleep(0.0333) # 30 Hz

  2990. 

  2991.     # --------------------------------------------------------------------------------------------------------

  2992.     # Stop

  2993. 

  2994.     host.engine_close()

  2995.     sys.exit(0)

  2996. 

  2997. # ------------------------------------------------------------------------------------------------------------