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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) 2011-2020 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

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

  25. try:

  26.     from PyQt5.Qt import PYQT_VERSION

  27. except ImportError:

  28.     PYQT_VERSION = 0x50600

  29. 

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

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

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

  33. 

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

  35. # Imports (Custom)

  36. 

  37. import ui_carla_host

  38. 

  39. from carla_app import *

  40. from carla_database import *

  41. from carla_settings import *

  42. from carla_utils import *

  43. from carla_widgets import *

  44. 

  45. from patchcanvas import patchcanvas

  46. from widgets.digitalpeakmeter import DigitalPeakMeter

  47. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  48. 

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

  50. # Try Import OpenGL

  51. 

  52. try:

  53.     from PyQt5.QtOpenGL import QGLWidget

  54.     hasGL = True

  55. except:

  56.     hasGL = False

  57. 

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

  59. # Safe exception hook, needed for PyQt5

  60. 

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

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

  63. 

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

  65. # Session Management support

  66. 

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

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

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

  70. 

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

  72. # Small print helper

  73. 

  74. def processMode2Str(processMode):

  75.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  76.         return "Single client"

  77.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  78.         return "Multi client"

  79.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  80.         return "Continuous Rack"

  81.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  82.         return "Patchbay"

  83.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  84.         return "Bridge"

  85.     return "Unknown"

  86. 

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

  88. # Carla Print class

  89. 

  90. class CarlaPrint:

  91.     def __init__(self, err):

  92.         self.err = err

  93. 

  94.     def flush(self):

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

  96. 

  97.     def write(self, string):

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

  99. 

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

  101. # Host Window

  102. 

  103. class HostWindow(QMainWindow):

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

  105.     # signals

  106.     SIGTERM = pyqtSignal()

  107.     SIGUSR1 = pyqtSignal()

  108. 

  109.     # CustomActions

  110.     CUSTOM_ACTION_NONE         = 0

  111.     CUSTOM_ACTION_APP_CLOSE    = 1

  112.     CUSTOM_ACTION_PROJECT_LOAD = 2

  113. 

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

  115. 

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

  117.         QMainWindow.__init__(self, parent)

  118.         self.host = host

  119.         self.ui = ui_carla_host.Ui_CarlaHostW()

  120.         self.ui.setupUi(self)

  121.         gCarla.gui = self

  122. 

  123.         if False:

  124.             # kdevelop likes this :)

  125.             host = CarlaHostNull()

  126.             self.host = host

  127. 

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

  129. 

  130.         self.fParentOrSelf = parent or self

  131. 

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

  133.         # Internal stuff

  134. 

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

  136.         self.fIdleTimerFast = 0

  137.         self.fIdleTimerSlow = 0

  138. 

  139.         self.fLadspaRdfNeedsUpdate = True

  140.         self.fLadspaRdfList = []

  141. 

  142.         self.fPluginCount = 0

  143.         self.fPluginList  = []

  144. 

  145.         self.fPluginDatabaseDialog = None

  146.         self.fFavoritePlugins = []

  147. 

  148.         self.fProjectFilename  = ""

  149.         self.fIsProjectLoading = False

  150.         self.fCurrentlyRemovingAllPlugins = False

  151. 

  152.         self.fLastTransportBPM   = 0.0

  153.         self.fLastTransportFrame = 0

  154.         self.fLastTransportState = False

  155.         self.fBufferSize         = 0

  156.         self.fSampleRate         = 0.0

  157.         self.fOscAddressTCP      = ""

  158.         self.fOscAddressUDP      = ""

  159.         self.fOscReportedHost    = ""

  160. 

  161.         if MACOS:

  162.             self.fMacClosingHelper = True

  163. 

  164.         # CancelableActionCallback Box

  165.         self.fCancelableActionBox = None

  166. 

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

  168.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  169. 

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

  171.         self.fFirstEngineInit = True

  172. 

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

  174.         self.fSavedSettings = {}

  175. 

  176.         if host.isControl:

  177.             self.fClientName         = "Carla-Control"

  178.             self.fSessionManagerName = "Control"

  179.         elif host.isPlugin:

  180.             self.fClientName         = "Carla-Plugin"

  181.             self.fSessionManagerName = "Plugin"

  182.         elif LADISH_APP_NAME:

  183.             self.fClientName         = LADISH_APP_NAME

  184.             self.fSessionManagerName = "LADISH"

  185.         elif NSM_URL and host.nsmOK:

  186.             self.fClientName         = "Carla.tmp"

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

  188.         else:

  189.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  190.             self.fSessionManagerName = ""

  191. 

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

  193.         # Internal stuff (patchbay)

  194. 

  195.         self.fPeaksCleared = True

  196. 

  197.         self.fExternalPatchbay = False

  198.         self.fSelectedPlugins  = []

  199. 

  200.         self.fCanvasWidth  = 0

  201.         self.fCanvasHeight = 0

  202.         self.fMiniCanvasUpdateTimeout = 0

  203. 

  204.         self.fWithCanvas = withCanvas

  205. 

  206.         # ----------------------------------------------------------------------------------------------------

  207.         # Internal stuff (logs)

  208. 

  209.         self.autoscrollOnNewLog = True

  210.         self.lastLogSliderPos = 0

  211. 

  212.         # ----------------------------------------------------------------------------------------------------

  213.         # Set up GUI (engine stopped)

  214. 

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

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

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

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

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

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

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

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

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

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

  225. 

  226.             if self.host.isControl:

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

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

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

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

  231.             else:

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

  233. 

  234.                 if not withCanvas:

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

  236. 

  237.         else:

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

  239. 

  240.             if WINDOWS:

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

  242. 

  243.         if self.host.isControl:

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

  245.         else:

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

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

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

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

  250. 

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

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

  253. 

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

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

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

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

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

  259. 

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

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

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

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

  264. 

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

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

  267. 

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

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

  270. 

  271.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  289.             self.ui.tw_miniCanvas.hide()

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

  291.             if WINDOWS:

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

  293. 

  294.         # ----------------------------------------------------------------------------------------------------

  295.         # Set up GUI (disk)

  296. 

  297.         exts = gCarla.utils.get_supported_file_extensions()

  298. 

  299.         self.fDirModel = QFileSystemModel(self)

  300.         self.fDirModel.setRootPath(HOME)

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

  302. 

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

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

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

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

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

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

  309. 

  310.         # ----------------------------------------------------------------------------------------------------

  311.         # Set up GUI (transport)

  312. 

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

  314.         minValueWidth = fontMetricsHorizontalAdvance(fontMetrics, "000|00|0000")

  315.         minLabelWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_frame.text())

  316. 

  317.         labelTimeWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_time.text())

  318.         labelBBTWidth  = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_bbt.text())

  319. 

  320.         if minLabelWidth < labelTimeWidth:

  321.             minLabelWidth = labelTimeWidth

  322.         if minLabelWidth < labelBBTWidth:

  323.             minLabelWidth = labelBBTWidth

  324. 

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

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

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

  328. 

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

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

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

  332. 

  333.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  346. 

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

  348. 

  349.         # ----------------------------------------------------------------------------------------------------

  350.         # Set up GUI (rack)

  351. 

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

  353. 

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

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

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

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

  358. 

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

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

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

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

  363. 

  364.         self.updateStyle()

  365. 

  366.         self.ui.rack.setStyleSheet("""

  367.           CarlaRackList#CarlaRackList {

  368.             background-color: black;

  369.           }

  370.         """)

  371. 

  372.         # ----------------------------------------------------------------------------------------------------

  373.         # Set up GUI (patchbay)

  374. 

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

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

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

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

  379. 

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

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

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

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

  384. 

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

  386.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  388. 

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

  390. 

  391.         self.ui.miniCanvasPreview.setRealParent(self)

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

  393. 

  394.         # ----------------------------------------------------------------------------------------------------

  395.         # Set up GUI (logs)

  396. 

  397.         self.ui.text_logs.textChanged.connect(self.slot_logButtonsState)

  398.         self.ui.logs_clear.clicked.connect(self.slot_logClear)

  399.         self.ui.logs_save.clicked.connect(self.slot_logSave)

  400.         self.ui.logs_autoscroll.stateChanged.connect(self.slot_toggleLogAutoscroll)

  401.         self.ui.text_logs.verticalScrollBar().valueChanged.connect(self.slot_logSliderMoved)

  402. 

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

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

  405. 

  406.         if MACOS:

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

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

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

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

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

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

  413. 

  414.         # ----------------------------------------------------------------------------------------------------

  415.         # Load Settings

  416. 

  417.         self.loadSettings(True)

  418. 

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

  420.         # Set-up Canvas

  421. 

  422.         if withCanvas:

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

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

  425. 

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

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

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

  429. 

  430.             self.setupCanvas()

  431. 

  432.         # ----------------------------------------------------------------------------------------------------

  433.         # Connect actions to functions

  434. 

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

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

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

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

  439. 

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

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

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

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

  444. 

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

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

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

  448. 

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

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

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

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

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

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

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

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

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

  458. 

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

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

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

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

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

  464. 

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

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

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

  468. 

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

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

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

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

  473. 

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

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

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

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

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

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

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

  481. 

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

  483. 

  484.         self.ui.listWidget.customContextMenuRequested.connect(self.slot_showPluginActionsMenu)

  485. 

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

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

  488. 

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

  490. 

  491.         if withCanvas:

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

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

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

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

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

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

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

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

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

  501.             self.ui.act_canvas_save_image_2x.triggered.connect(self.slot_canvasSaveImage)

  502.             self.ui.act_canvas_save_image_4x.triggered.connect(self.slot_canvasSaveImage)

  503.             self.ui.act_canvas_copy_clipboard.triggered.connect(self.slot_canvasCopyToClipboard)

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

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

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

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

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

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

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

  511. 

  512.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  513.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  514. 

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

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

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

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

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

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

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

  522. 

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

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

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

  526. 

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

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

  529. 

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

  531. 

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

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

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

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

  536.         host.PatchbayClientPositionChangedCallback.connect(self.slot_handlePatchbayClientPositionChangedCallback)

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

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

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

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

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

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

  543. 

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

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

  546. 

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

  548. 

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

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

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

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

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

  554. 

  555.         # ----------------------------------------------------------------------------------------------------

  556.         # Final setup

  557. 

  558.         self.ui.text_logs.clear()

  559.         self.slot_logButtonsState(False)

  560.         self.setProperWindowTitle()

  561. 

  562.         # Disable non-supported features

  563.         features = gCarla.utils.get_supported_features()

  564. 

  565.         if "link" not in features:

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

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

  568. 

  569.         if "juce" not in features:

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

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

  572. 

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

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

  575.             self.startTimers()

  576. 

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

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

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

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

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

  582. 

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

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

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

  586. 

  587.         # Load initial project file if set

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

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

  590. 

  591.             if projectFile:

  592.                 self.loadProjectLater(projectFile)

  593. 

  594.         # For NSM we wait for the open message

  595.         if NSM_URL and host.nsmOK:

  596.             host.nsm_ready(NSM_CALLBACK_INIT)

  597.             return

  598. 

  599.         if not host.isControl:

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

  601. 

  602.     # --------------------------------------------------------------------------------------------------------

  603.     # Setup

  604. 

  605.     def compactPlugin(self, pluginId):

  606.         if pluginId > self.fPluginCount:

  607.             return

  608. 

  609.         pitem = self.fPluginList[pluginId]

  610. 

  611.         if pitem is None:

  612.             return

  613. 

  614.         pitem.recreateWidget(True)

  615. 

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

  617.         if pluginId > self.fPluginCount:

  618.             return

  619. 

  620.         pitem = self.fPluginList[pluginId]

  621. 

  622.         if pitem is None:

  623.             return

  624. 

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

  626.         pitem.recreateWidget(newColor = color)

  627. 

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

  629.         if pluginId > self.fPluginCount:

  630.             return

  631. 

  632.         pitem = self.fPluginList[pluginId]

  633. 

  634.         if pitem is None:

  635.             return

  636. 

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

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

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

  640.         else:

  641.             pitem.recreateWidget(newSkin = skin)

  642. 

  643.     def findPluginInPatchbay(self, pluginId):

  644.         if pluginId > self.fPluginCount:

  645.             return

  646. 

  647.         if self.fExternalPatchbay:

  648.             self.slot_canvasShowInternal()

  649. 

  650.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

  651.             name = self.host.get_plugin_info(pluginId)['name']

  652.             if not patchcanvas.focusGroupUsingGroupName(name):

  653.                 return

  654. 

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

  656. 

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

  658.         if pluginIdA == pluginIdB:

  659.             return

  660.         if pluginIdA < 0 or pluginIdB < 0:

  661.             return

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

  663.             return

  664. 

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

  666. 

  667.         itemA = self.fPluginList[pluginIdA]

  668.         compactA = itemA.isCompacted()

  669.         guiShownA = itemA.isGuiShown()

  670. 

  671.         itemB = self.fPluginList[pluginIdB]

  672.         compactB = itemB.isCompacted()

  673.         guiShownB = itemB.isGuiShown()

  674. 

  675.         itemA.setPluginId(pluginIdA)

  676.         itemA.recreateWidget2(compactB, guiShownB)

  677. 

  678.         itemB.setPluginId(pluginIdB)

  679.         itemB.recreateWidget2(compactA, guiShownA)

  680. 

  681.         if self.fWithCanvas:

  682.             self.slot_canvasRefresh()

  683. 

  684.     def setLoadRDFsNeeded(self):

  685.         self.fLadspaRdfNeedsUpdate = True

  686. 

  687.     def setProperWindowTitle(self):

  688.         title = self.fClientName

  689. 

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

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

  692.         if self.fSessionManagerName:

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

  694. 

  695.         self.setWindowTitle(title)

  696. 

  697.     def updateBufferSize(self, newBufferSize):

  698.         if self.fBufferSize == newBufferSize:

  699.             return

  700.         self.fBufferSize = newBufferSize

  701.         self.ui.cb_buffer_size.clear()

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

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

  704. 

  705.     def updateSampleRate(self, newSampleRate):

  706.         if self.fSampleRate == newSampleRate:

  707.             return

  708.         self.fSampleRate = newSampleRate

  709.         self.ui.cb_sample_rate.clear()

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

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

  712.         self.refreshTransport(True)

  713. 

  714.     # --------------------------------------------------------------------------------------------------------

  715.     # Files

  716. 

  717.     def loadProjectNow(self):

  718.         if not self.fProjectFilename:

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

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

  721.             return

  722. 

  723.         self.projectLoadingStarted()

  724.         self.fIsProjectLoading = True

  725. 

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

  727.             self.fIsProjectLoading = False

  728.             self.projectLoadingFinished()

  729. 

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

  731.                              self.host.get_last_error(),

  732.                              QMessageBox.Ok, QMessageBox.Ok)

  733. 

  734.     def loadProjectLater(self, filename):

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

  736.         self.setProperWindowTitle()

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

  738. 

  739.     def saveProjectNow(self):

  740.         if not self.fProjectFilename:

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

  742. 

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

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

  745.                              self.host.get_last_error(),

  746.                              QMessageBox.Ok, QMessageBox.Ok)

  747.             return

  748. 

  749.     def projectLoadingStarted(self):

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

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

  752. 

  753.     def projectLoadingFinished(self):

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

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

  756. 

  757.         if not self.fWithCanvas:

  758.             return

  759. 

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

  761. 

  762.         extrafile = self.fProjectFilename.rsplit(".",1)[0]+".json"

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

  764.             return

  765. 

  766.         try:

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

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

  769.         except:

  770.             return

  771. 

  772.         patchcanvas.restoreGroupPositions(canvasdata)

  773. 

  774.     # --------------------------------------------------------------------------------------------------------

  775.     # Files (menu actions)

  776. 

  777.     @pyqtSlot()

  778.     def slot_fileNew(self):

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

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

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

  782.             return

  783. 

  784.         self.pluginRemoveAll()

  785.         self.fProjectFilename = ""

  786.         self.setProperWindowTitle()

  787.         self.host.clear_project_filename()

  788. 

  789.     @pyqtSlot()

  790.     def slot_fileOpen(self):

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

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

  793. 

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

  795.         if not filename:

  796.             return

  797. 

  798.         newFile = True

  799. 

  800.         if self.fPluginCount > 0:

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

  802.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  804. 

  805.         if newFile:

  806.             self.pluginRemoveAll()

  807.             self.fProjectFilename = filename

  808.             self.setProperWindowTitle()

  809.             self.loadProjectNow()

  810.         else:

  811.             filenameOld = self.fProjectFilename

  812.             self.fProjectFilename = filename

  813.             self.loadProjectNow()

  814.             self.fProjectFilename = filenameOld

  815. 

  816.     @pyqtSlot()

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

  818.         if self.fProjectFilename and not saveAs:

  819.             return self.saveProjectNow()

  820. 

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

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

  823. 

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

  825.         if not filename:

  826.             return

  827. 

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

  829.             filename += ".carxp"

  830. 

  831.         if self.fProjectFilename != filename:

  832.             self.fProjectFilename = filename

  833.             self.setProperWindowTitle()

  834. 

  835.         self.saveProjectNow()

  836. 

  837.     @pyqtSlot()

  838.     def slot_fileSaveAs(self):

  839.         self.slot_fileSave(True)

  840. 

  841.     @pyqtSlot()

  842.     def slot_loadProjectNow(self):

  843.         self.loadProjectNow()

  844. 

  845.     # --------------------------------------------------------------------------------------------------------

  846.     # Engine (menu actions)

  847. 

  848.     @pyqtSlot()

  849.     def slot_engineStart(self):

  850.         audioDriver = setEngineSettings(self.host)

  851.         firstInit   = self.fFirstEngineInit

  852. 

  853.         self.fFirstEngineInit = False

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

  855. 

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

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

  858.                 settings = QSafeSettings()

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

  860.                 del settings

  861.                 if lastBpm >= 20.0:

  862.                     self.host.transport_bpm(lastBpm)

  863.             return

  864. 

  865.         elif firstInit:

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

  867.             return

  868. 

  869.         audioError = self.host.get_last_error()

  870. 

  871.         if audioError:

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

  873.         else:

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

  875. 

  876.     @pyqtSlot()

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

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

  879. 

  880.         if self.fPluginCount == 0:

  881.             self.engineStopFinal()

  882.             return True

  883. 

  884.         if not forced:

  885.             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"

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

  887.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  888.             if ask != QMessageBox.Yes:

  889.                 return False

  890. 

  891.         return self.slot_engineStopTryAgain()

  892. 

  893.     @pyqtSlot()

  894.     def slot_engineConfig(self):

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

  896. 

  897.         if not dialog.exec_():

  898.             return

  899. 

  900.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  901. 

  902.         if self.host.is_engine_running():

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

  904.         else:

  905.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  906.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  907.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  908. 

  909.     @pyqtSlot()

  910.     def slot_engineStopTryAgain(self):

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

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

  913.             return False

  914. 

  915.         self.engineStopFinal()

  916.         return True

  917. 

  918.     def engineStopFinal(self):

  919.         patchcanvas.handleAllPluginsRemoved()

  920.         self.killTimers()

  921. 

  922.         if self.host.is_engine_running():

  923.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  924.                 self.removeAllPlugins()

  925.             elif self.fPluginCount != 0:

  926.                 self.fCurrentlyRemovingAllPlugins = True

  927.                 self.projectLoadingStarted()

  928. 

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

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

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

  932. 

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

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

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

  936. 

  937.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  938.             self.close()

  939.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  940.             self.slot_engineStart()

  941.             self.loadProjectNow()

  942.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  943. 

  944.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  945. 

  946.     # --------------------------------------------------------------------------------------------------------

  947.     # Engine (host callbacks)

  948. 

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

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

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

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

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

  954. 

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

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

  957. 

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

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

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

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

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

  963.             self.fExternalPatchbay = False

  964.         else:

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

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

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

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

  969.             self.fExternalPatchbay = not self.host.isPlugin

  970. 

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

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

  973. 

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

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

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

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

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

  979. 

  980.         if not self.host.isPlugin:

  981.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  982. 

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

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

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

  986. 

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

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

  989. 

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

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

  992. 

  993.         self.updateBufferSize(bufferSize)

  994.         self.updateSampleRate(int(sampleRate))

  995.         self.refreshRuntimeInfo(0.0, 0)

  996.         self.startTimers()

  997. 

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

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

  1000.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1001.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1002.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1003. 

  1004.     @pyqtSlot()

  1005.     def slot_handleEngineStoppedCallback(self):

  1006.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1007. 

  1008.         patchcanvas.clear()

  1009.         self.killTimers()

  1010. 

  1011.         # just in case

  1012.         self.removeAllPlugins()

  1013.         self.refreshRuntimeInfo(0.0, 0)

  1014. 

  1015.         self.ui.menu_PluginMacros.setEnabled(False)

  1016.         self.ui.menu_Canvas.setEnabled(False)

  1017.         self.ui.w_transport.setEnabled(False)

  1018. 

  1019.         if not (self.host.isControl or self.host.isPlugin):

  1020.             self.ui.act_file_save.setEnabled(False)

  1021.             self.ui.act_engine_start.setEnabled(True)

  1022.             self.ui.act_engine_stop.setEnabled(False)

  1023. 

  1024.         if self.host.isPlugin or not self.fSessionManagerName:

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

  1026.             self.ui.act_file_save_as.setEnabled(False)

  1027. 

  1028.     @pyqtSlot(int, str)

  1029.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1030.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1031. 

  1032.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1033.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1034. 

  1035.     @pyqtSlot(int)

  1036.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1037.         self.updateBufferSize(newBufferSize)

  1038. 

  1039.     @pyqtSlot(float)

  1040.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1041.         self.updateSampleRate(int(newSampleRate))

  1042. 

  1043.     @pyqtSlot(int, bool, str)

  1044.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1045.         if self.fCancelableActionBox is not None:

  1046.             self.fCancelableActionBox.close()

  1047. 

  1048.         if started:

  1049.             self.fCancelableActionBox = QMessageBox(self)

  1050.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1051.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1052.             self.fCancelableActionBox.setText(action)

  1053.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1054.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1055.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1056.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1057.             self.fCancelableActionBox.show()

  1058. 

  1059.         else:

  1060.             self.fCancelableActionBox = None

  1061. 

  1062.     @pyqtSlot()

  1063.     def slot_canlableActionBoxClicked(self):

  1064.         self.host.cancel_engine_action()

  1065. 

  1066.     @pyqtSlot()

  1067.     def slot_handleProjectLoadFinishedCallback(self):

  1068.         self.fIsProjectLoading = False

  1069.         self.projectLoadingFinished()

  1070. 

  1071.     # --------------------------------------------------------------------------------------------------------

  1072.     # Plugins

  1073. 

  1074.     def removeAllPlugins(self):

  1075.         self.ui.act_plugin_remove_all.setEnabled(False)

  1076.         patchcanvas.handleAllPluginsRemoved()

  1077. 

  1078.         while self.ui.listWidget.takeItem(0):

  1079.             pass

  1080. 

  1081.         self.clearSideStuff()

  1082. 

  1083.         for pitem in self.fPluginList:

  1084.             if pitem is None:

  1085.                 continue

  1086. 

  1087.             pitem.close()

  1088.             del pitem

  1089. 

  1090.         self.fPluginCount = 0

  1091.         self.fPluginList  = []

  1092. 

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

  1094.     # Plugins (menu actions)

  1095. 

  1096.     def showAddPluginDialog(self):

  1097.         if self.fPluginDatabaseDialog is None:

  1098.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1099.         dialog = self.fPluginDatabaseDialog

  1100. 

  1101.         ret = dialog.exec_()

  1102. 

  1103.         if dialog.fFavoritePluginsChanged:

  1104.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1105. 

  1106.         if not ret:

  1107.             return

  1108. 

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

  1110.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1111.             return

  1112. 

  1113.         btype    = dialog.fRetPlugin['build']

  1114.         ptype    = dialog.fRetPlugin['type']

  1115.         filename = dialog.fRetPlugin['filename']

  1116.         label    = dialog.fRetPlugin['label']

  1117.         uniqueId = dialog.fRetPlugin['uniqueId']

  1118.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1119. 

  1120.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1121. 

  1122.     def showAddJackAppDialog(self):

  1123.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1124. 

  1125.         if not dialog.exec_():

  1126.             return

  1127. 

  1128.         if not self.host.is_engine_running():

  1129.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1130.             return

  1131. 

  1132.         return dialog.getCommandAndFlags()

  1133. 

  1134.     @pyqtSlot()

  1135.     def slot_favoritePluginAdd(self):

  1136.         plugin = self.sender().data()

  1137. 

  1138.         if plugin is None:

  1139.             return

  1140. 

  1141.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1142.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1143.             CustomMessageBox(self,

  1144.                              QMessageBox.Critical,

  1145.                              self.tr("Error"),

  1146.                              self.tr("Failed to load plugin"),

  1147.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1148. 

  1149.     @pyqtSlot()

  1150.     def slot_showPluginActionsMenu(self):

  1151.         menu = QMenu(self)

  1152. 

  1153.         menu.addSection("Plugins")

  1154.         menu.addAction(self.ui.act_plugin_add)

  1155. 

  1156.         if len(self.fFavoritePlugins) != 0:

  1157.             fmenu = QMenu("Add from favorites", self)

  1158.             for p in self.fFavoritePlugins:

  1159.                 act = fmenu.addAction(p['name'])

  1160.                 act.setData(p)

  1161.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1162.             menu.addMenu(fmenu)

  1163. 

  1164.         menu.addAction(self.ui.act_plugin_remove_all)

  1165. 

  1166.         menu.addSection("All plugins (macros)")

  1167.         menu.addAction(self.ui.act_plugins_enable)

  1168.         menu.addAction(self.ui.act_plugins_disable)

  1169.         menu.addSeparator()

  1170.         menu.addAction(self.ui.act_plugins_volume100)

  1171.         menu.addAction(self.ui.act_plugins_mute)

  1172.         menu.addSeparator()

  1173.         menu.addAction(self.ui.act_plugins_wet100)

  1174.         menu.addAction(self.ui.act_plugins_bypass)

  1175.         menu.addSeparator()

  1176.         menu.addAction(self.ui.act_plugins_center)

  1177.         menu.addSeparator()

  1178.         menu.addAction(self.ui.act_plugins_compact)

  1179.         menu.addAction(self.ui.act_plugins_expand)

  1180. 

  1181.         menu.exec_(QCursor.pos())

  1182. 

  1183.     @pyqtSlot()

  1184.     def slot_pluginAdd(self):

  1185.         data = self.showAddPluginDialog()

  1186. 

  1187.         if data is None:

  1188.             return

  1189. 

  1190.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1191. 

  1192.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1193.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1194.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1195. 

  1196.     @pyqtSlot()

  1197.     def slot_confirmRemoveAll(self):

  1198.         if self.fPluginCount == 0:

  1199.             return

  1200. 

  1201.         if QMessageBox.question(self, self.tr("Remove All"),

  1202.                                       self.tr("Are you sure you want to remove all plugins?"),

  1203.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1204.             return

  1205. 

  1206.         self.pluginRemoveAll()

  1207. 

  1208.     def pluginRemoveAll(self):

  1209.         if self.fPluginCount == 0:

  1210.             return

  1211. 

  1212.         self.fCurrentlyRemovingAllPlugins = True

  1213.         self.projectLoadingStarted()

  1214. 

  1215.         if not self.host.remove_all_plugins():

  1216.             self.projectLoadingFinished()

  1217.             self.fCurrentlyRemovingAllPlugins = False

  1218.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1219.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1220. 

  1221.     @pyqtSlot()

  1222.     def slot_jackAppAdd(self):

  1223.         data = self.showAddJackAppDialog()

  1224. 

  1225.         if data is None:

  1226.             return

  1227. 

  1228.         filename, name, label = data

  1229. 

  1230.         if not filename:

  1231.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1232.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1233.             return

  1234. 

  1235.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1236.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1237.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1238. 

  1239.     # --------------------------------------------------------------------------------------------------------

  1240.     # Plugins (macros)

  1241. 

  1242.     @pyqtSlot()

  1243.     def slot_pluginsEnable(self):

  1244.         if not self.host.is_engine_running():

  1245.             return

  1246. 

  1247.         for pitem in self.fPluginList:

  1248.             if pitem is None:

  1249.                 break

  1250. 

  1251.             pitem.getWidget().setActive(True, True, True)

  1252. 

  1253.     @pyqtSlot()

  1254.     def slot_pluginsDisable(self):

  1255.         if not self.host.is_engine_running():

  1256.             return

  1257. 

  1258.         for pitem in self.fPluginList:

  1259.             if pitem is None:

  1260.                 break

  1261. 

  1262.             pitem.getWidget().setActive(False, True, True)

  1263. 

  1264.     @pyqtSlot()

  1265.     def slot_pluginsVolume100(self):

  1266.         if not self.host.is_engine_running():

  1267.             return

  1268. 

  1269.         for pitem in self.fPluginList:

  1270.             if pitem is None:

  1271.                 break

  1272. 

  1273.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1274. 

  1275.     @pyqtSlot()

  1276.     def slot_pluginsMute(self):

  1277.         if not self.host.is_engine_running():

  1278.             return

  1279. 

  1280.         for pitem in self.fPluginList:

  1281.             if pitem is None:

  1282.                 break

  1283. 

  1284.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1285. 

  1286.     @pyqtSlot()

  1287.     def slot_pluginsWet100(self):

  1288.         if not self.host.is_engine_running():

  1289.             return

  1290. 

  1291.         for pitem in self.fPluginList:

  1292.             if pitem is None:

  1293.                 break

  1294. 

  1295.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1296. 

  1297.     @pyqtSlot()

  1298.     def slot_pluginsBypass(self):

  1299.         if not self.host.is_engine_running():

  1300.             return

  1301. 

  1302.         for pitem in self.fPluginList:

  1303.             if pitem is None:

  1304.                 break

  1305. 

  1306.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1307. 

  1308.     @pyqtSlot()

  1309.     def slot_pluginsCenter(self):

  1310.         if not self.host.is_engine_running():

  1311.             return

  1312. 

  1313.         for pitem in self.fPluginList:

  1314.             if pitem is None:

  1315.                 break

  1316. 

  1317.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1318.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1319.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1320. 

  1321.     @pyqtSlot()

  1322.     def slot_pluginsCompact(self):

  1323.         for pitem in self.fPluginList:

  1324.             if pitem is None:

  1325.                 break

  1326.             pitem.compact()

  1327. 

  1328.     @pyqtSlot()

  1329.     def slot_pluginsExpand(self):

  1330.         for pitem in self.fPluginList:

  1331.             if pitem is None:

  1332.                 break

  1333.             pitem.expand()

  1334. 

  1335.     # --------------------------------------------------------------------------------------------------------

  1336.     # Plugins (host callbacks)

  1337. 

  1338.     @pyqtSlot(int, str)

  1339.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1340.         if pluginId != self.fPluginCount:

  1341.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1342.             pitem = self.getPluginItem(pluginId)

  1343.             pitem.recreateWidget()

  1344.             return

  1345. 

  1346.         pitem = self.ui.listWidget.createItem(pluginId)

  1347.         self.fPluginList.append(pitem)

  1348.         self.fPluginCount += 1

  1349. 

  1350.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1351. 

  1352.     @pyqtSlot(int)

  1353.     def slot_handlePluginRemovedCallback(self, pluginId):

  1354.         patchcanvas.handlePluginRemoved(pluginId)

  1355. 

  1356.         if pluginId in self.fSelectedPlugins:

  1357.             self.clearSideStuff()

  1358. 

  1359.         if self.fPluginCount == 0:

  1360.             return

  1361. 

  1362.         pitem = self.getPluginItem(pluginId)

  1363. 

  1364.         self.fPluginCount -= 1

  1365.         self.fPluginList.pop(pluginId)

  1366.         self.ui.listWidget.takeItem(pluginId)

  1367. 

  1368.         if pitem is not None:

  1369.             pitem.close()

  1370.             del pitem

  1371. 

  1372.         if self.fPluginCount == 0:

  1373.             self.ui.act_plugin_remove_all.setEnabled(False)

  1374.             if self.fCurrentlyRemovingAllPlugins:

  1375.                 self.fCurrentlyRemovingAllPlugins = False

  1376.                 self.projectLoadingFinished()

  1377.             return

  1378. 

  1379.         # push all plugins 1 slot back

  1380.         for i in range(pluginId, self.fPluginCount):

  1381.             pitem = self.fPluginList[i]

  1382.             pitem.setPluginId(i)

  1383. 

  1384.         self.ui.act_plugin_remove_all.setEnabled(True)

  1385. 

  1386.     # --------------------------------------------------------------------------------------------------------

  1387.     # Canvas

  1388. 

  1389.     def clearSideStuff(self):

  1390.         if self.fWithCanvas:

  1391.             self.scene.clearSelection()

  1392. 

  1393.         self.fSelectedPlugins = []

  1394. 

  1395.         self.ui.keyboard.allNotesOff(False)

  1396.         self.ui.scrollArea.setEnabled(False)

  1397. 

  1398.         self.fPeaksCleared = True

  1399.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1400.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1401.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1402.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1403. 

  1404.     def setupCanvas(self):

  1405.         pOptions = patchcanvas.options_t()

  1406.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1407.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1408.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1409.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1410.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1411.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1412. 

  1413.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1414.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1415.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1416.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1417.         else:

  1418.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1419. 

  1420.         pFeatures = patchcanvas.features_t()

  1421.         pFeatures.group_info   = False

  1422.         pFeatures.group_rename = False

  1423.         pFeatures.port_info    = False

  1424.         pFeatures.port_rename  = False

  1425.         pFeatures.handle_group_pos = False

  1426. 

  1427.         patchcanvas.setOptions(pOptions)

  1428.         patchcanvas.setFeatures(pFeatures)

  1429.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1430. 

  1431.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1432. 

  1433.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1434.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1435.             self.fCanvasHeight = int(tryCanvasSize[1])

  1436.         else:

  1437.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1438.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1439. 

  1440.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1441.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1442.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1443. 

  1444.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1445.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1446. 

  1447.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1448.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1449. 

  1450.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1451.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1452.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1453. 

  1454.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1455.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1456. 

  1457.         else:

  1458.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1459. 

  1460.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1461.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1462.         else:

  1463.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1464. 

  1465.     def updateCanvasInitialPos(self):

  1466.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1467.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1468.         patchcanvas.setInitialPos(x, y)

  1469. 

  1470.     def updateMiniCanvasLater(self):

  1471.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1472. 

  1473.     # --------------------------------------------------------------------------------------------------------

  1474.     # Canvas (menu actions)

  1475. 

  1476.     @pyqtSlot()

  1477.     def slot_canvasShowInternal(self):

  1478.         self.fExternalPatchbay = False

  1479.         self.ui.act_canvas_show_internal.blockSignals(True)

  1480.         self.ui.act_canvas_show_external.blockSignals(True)

  1481.         self.ui.act_canvas_show_internal.setChecked(True)

  1482.         self.ui.act_canvas_show_external.setChecked(False)

  1483.         self.ui.act_canvas_show_internal.blockSignals(False)

  1484.         self.ui.act_canvas_show_external.blockSignals(False)

  1485.         self.slot_canvasRefresh()

  1486. 

  1487.     @pyqtSlot()

  1488.     def slot_canvasShowExternal(self):

  1489.         self.fExternalPatchbay = True

  1490.         self.ui.act_canvas_show_internal.blockSignals(True)

  1491.         self.ui.act_canvas_show_external.blockSignals(True)

  1492.         self.ui.act_canvas_show_internal.setChecked(False)

  1493.         self.ui.act_canvas_show_external.setChecked(True)

  1494.         self.ui.act_canvas_show_internal.blockSignals(False)

  1495.         self.ui.act_canvas_show_external.blockSignals(False)

  1496.         self.slot_canvasRefresh()

  1497. 

  1498.     @pyqtSlot()

  1499.     def slot_canvasArrange(self):

  1500.         patchcanvas.arrange()

  1501. 

  1502.     @pyqtSlot()

  1503.     def slot_canvasRefresh(self):

  1504.         patchcanvas.clear()

  1505. 

  1506.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1507.             return

  1508. 

  1509.         if self.host.is_engine_running():

  1510.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1511. 

  1512.         self.updateMiniCanvasLater()

  1513. 

  1514.     @pyqtSlot()

  1515.     def slot_canvasZoomFit(self):

  1516.         self.scene.zoom_fit()

  1517. 

  1518.     @pyqtSlot()

  1519.     def slot_canvasZoomIn(self):

  1520.         self.scene.zoom_in()

  1521. 

  1522.     @pyqtSlot()

  1523.     def slot_canvasZoomOut(self):

  1524.         self.scene.zoom_out()

  1525. 

  1526.     @pyqtSlot()

  1527.     def slot_canvasZoomReset(self):

  1528.         self.scene.zoom_reset()

  1529. 

  1530.     @pyqtSlot()

  1531.     def slot_canvasSaveImage(self):

  1532.         if self.fProjectFilename:

  1533.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1534.         else:

  1535.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1536. 

  1537.         fileDialog = QFileDialog(self)

  1538.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1539.         fileDialog.setDirectory(dir)

  1540.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1541.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1542.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1543.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1544.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1545. 

  1546.         ok = fileDialog.exec_()

  1547. 

  1548.         if not ok:

  1549.             return

  1550. 

  1551.         newPath = fileDialog.selectedFiles()

  1552. 

  1553.         if len(newPath) != 1:

  1554.             return

  1555. 

  1556.         newPath = newPath[0]

  1557. 

  1558.         if QT_VERSION >= 0x50900:

  1559.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1560.                 imgFormat = b"JPG"

  1561.             else:

  1562.                 imgFormat = b"PNG"

  1563.         else:

  1564.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1565.                 imgFormat = b"JPG"

  1566.             else:

  1567.                 imgFormat = b"PNG"

  1568. 

  1569.         sender = self.sender()

  1570.         if sender == self.ui.act_canvas_save_image_2x:

  1571.             zoom = 2.0

  1572.         elif sender == self.ui.act_canvas_save_image_4x:

  1573.             zoom = 4.0

  1574.         else:

  1575.             zoom = 1.0

  1576. 

  1577.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1578.         painter = QPainter(image)

  1579.         painter.save()

  1580.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1581.         self.scene.clearSelection()

  1582.         self.scene.render(painter)

  1583.         painter.restore()

  1584.         del painter

  1585. 

  1586.         iw = QImageWriter(newPath)

  1587.         iw.setFormat(imgFormat)

  1588.         iw.setCompression(-1)

  1589. 

  1590.         if QT_VERSION >= 0x50500:

  1591.             iw.setOptimizedWrite(True)

  1592. 

  1593.         iw.write(image)

  1594. 

  1595.     @pyqtSlot()

  1596.     def slot_canvasCopyToClipboard(self):

  1597.         image   = QImage(self.scene.width(), self.scene.height(), QImage.Format_RGB32)

  1598.         painter = QPainter(image)

  1599.         painter.save()

  1600.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1601.         self.scene.clearSelection()

  1602.         self.scene.render(painter)

  1603.         painter.restore()

  1604.         del painter

  1605. 

  1606.         QApplication.clipboard().setImage(image)

  1607. 

  1608.     # --------------------------------------------------------------------------------------------------------

  1609.     # Canvas (canvas callbacks)

  1610. 

  1611.     @pyqtSlot()

  1612.     def slot_canvasSelectionChanged(self):

  1613.         self.updateMiniCanvasLater()

  1614. 

  1615.     @pyqtSlot(float)

  1616.     def slot_canvasScaleChanged(self, scale):

  1617.         self.ui.miniCanvasPreview.setViewScale(scale)

  1618. 

  1619.     @pyqtSlot(list)

  1620.     def slot_canvasPluginSelected(self, pluginList):

  1621.         self.ui.keyboard.allNotesOff(False)

  1622.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1623.         self.fSelectedPlugins = pluginList

  1624. 

  1625.     # --------------------------------------------------------------------------------------------------------

  1626.     # Canvas (host callbacks)

  1627. 

  1628.     @pyqtSlot(int, int, int, str)

  1629.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1630.         pcSplit = patchcanvas.SPLIT_UNDEF

  1631.         pcIcon  = patchcanvas.ICON_APPLICATION

  1632. 

  1633.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1634.             pcIcon = patchcanvas.ICON_PLUGIN

  1635.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1636.             pcIcon = patchcanvas.ICON_HARDWARE

  1637.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1638.             pass

  1639.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1640.             pcIcon = patchcanvas.ICON_DISTRHO

  1641.         elif clientIcon == PATCHBAY_ICON_FILE:

  1642.             pcIcon = patchcanvas.ICON_FILE

  1643. 

  1644.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1645. 

  1646.         self.updateMiniCanvasLater()

  1647. 

  1648.         if pluginId < 0:

  1649.             return

  1650.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1651.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1652.             return

  1653. 

  1654.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1655.             hasCustomUI = False

  1656.             hasInlineDisplay = False

  1657.         else:

  1658.             hints = self.host.get_plugin_info(pluginId)['hints']

  1659.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1660.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1661. 

  1662.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1663. 

  1664.     @pyqtSlot(int)

  1665.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1666.         patchcanvas.removeGroup(clientId)

  1667.         self.updateMiniCanvasLater()

  1668. 

  1669.     @pyqtSlot(int, str)

  1670.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1671.         patchcanvas.renameGroup(clientId, newClientName)

  1672.         self.updateMiniCanvasLater()

  1673. 

  1674.     @pyqtSlot(int, int, int)

  1675.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1676.         pcIcon = patchcanvas.ICON_APPLICATION

  1677. 

  1678.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1679.             pcIcon = patchcanvas.ICON_PLUGIN

  1680.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1681.             pcIcon = patchcanvas.ICON_HARDWARE

  1682.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1683.             pass

  1684.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1685.             pcIcon = patchcanvas.ICON_DISTRHO

  1686.         elif clientIcon == PATCHBAY_ICON_FILE:

  1687.             pcIcon = patchcanvas.ICON_FILE

  1688. 

  1689.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1690.         self.updateMiniCanvasLater()

  1691. 

  1692.         if pluginId < 0:

  1693.             return

  1694.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1695.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1696.             return

  1697. 

  1698.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1699.             hasCustomUI = False

  1700.             hasInlineDisplay = False

  1701.         else:

  1702.             hints = self.host.get_plugin_info(pluginId)['hints']

  1703.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1704.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1705. 

  1706.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1707. 

  1708.     @pyqtSlot(int, int, int, int, int)

  1709.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1710.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1711.         self.updateMiniCanvasLater()

  1712. 

  1713.     @pyqtSlot(int, int, int, int, str)

  1714.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1715.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1716.             portMode = patchcanvas.PORT_MODE_INPUT

  1717.         else:

  1718.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1719. 

  1720.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1721.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1722.             isAlternate = False

  1723.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1724.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1725.             isAlternate = False

  1726.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1727.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1728.             isAlternate = False

  1729.         else:

  1730.             portType    = patchcanvas.PORT_TYPE_NULL

  1731.             isAlternate = False

  1732. 

  1733.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1734.         self.updateMiniCanvasLater()

  1735. 

  1736.     @pyqtSlot(int, int)

  1737.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1738.         patchcanvas.removePort(groupId, portId)

  1739.         self.updateMiniCanvasLater()

  1740. 

  1741.     @pyqtSlot(int, int, int, int, str)

  1742.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1743.         patchcanvas.renamePort(groupId, portId, newPortName)

  1744.         self.updateMiniCanvasLater()

  1745. 

  1746.     @pyqtSlot(int, int, int, str)

  1747.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1748.         # TODO

  1749.         pass

  1750. 

  1751.     @pyqtSlot(int, int)

  1752.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1753.         # TODO

  1754.         pass

  1755. 

  1756.     @pyqtSlot(int, int, int, str)

  1757.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1758.         # TODO

  1759.         pass

  1760. 

  1761.     @pyqtSlot(int, int, int, int, int)

  1762.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1763.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1764.         self.updateMiniCanvasLater()

  1765. 

  1766.     @pyqtSlot(int, int, int)

  1767.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1768.         patchcanvas.disconnectPorts(connectionId)

  1769.         self.updateMiniCanvasLater()

  1770. 

  1771.     # --------------------------------------------------------------------------------------------------------

  1772.     # Settings

  1773. 

  1774.     def saveSettings(self):

  1775.         settings = QSafeSettings()

  1776. 

  1777.         settings.setValue("Geometry", self.saveGeometry())

  1778.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1779. 

  1780.         if not self.host.isControl:

  1781.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1782. 

  1783.         diskFolders = []

  1784. 

  1785.         for i in range(self.ui.cb_disk.count()):

  1786.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1787. 

  1788.         settings.setValue("DiskFolders", diskFolders)

  1789.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1790. 

  1791.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1792.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1793.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1794.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1795. 

  1796.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1797.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1798. 

  1799.         return settings

  1800. 

  1801.     def loadSettings(self, firstTime):

  1802.         settings = QSafeSettings()

  1803. 

  1804.         if firstTime:

  1805.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1806.             if not geometry.isNull():

  1807.                 self.restoreGeometry(geometry)

  1808. 

  1809.             showToolbar = settings.value("ShowToolbar", True, bool)

  1810.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1811.             self.ui.toolBar.setEnabled(showToolbar)

  1812.             self.ui.toolBar.setVisible(showToolbar)

  1813. 

  1814.             #if settings.contains("SplitterState"):

  1815.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1816.             #else:

  1817.                 #self.ui.splitter.setSizes([210, 99999])

  1818. 

  1819.             showSidePanel = settings.value("ShowSidePanel", True, bool) and not self.host.isControl

  1820.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1821.             self.slot_showSidePanel(showSidePanel)

  1822. 

  1823.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1824. 

  1825.             self.ui.cb_disk.setItemData(0, HOME)

  1826. 

  1827.             for i in range(len(diskFolders)):

  1828.                 if i == 0: continue

  1829.                 folder = diskFolders[i]

  1830.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1831. 

  1832.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1833.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1834. 

  1835.             showMeters = settings.value("ShowMeters", True, bool)

  1836.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1837.             self.ui.peak_in.setVisible(showMeters)

  1838.             self.ui.peak_out.setVisible(showMeters)

  1839. 

  1840.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1841.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1842.             self.ui.scrollArea.setVisible(showKeyboard)

  1843. 

  1844.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1845.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1846. 

  1847.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1848. 

  1849.         # TODO - complete this

  1850. 

  1851.         self.fSavedSettings = {

  1852.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1853.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1854.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1855.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1856.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1857.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1858.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1859.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1860.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1861.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1862.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1863.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1864.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1865.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1866.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1867.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1868.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1869.         }

  1870. 

  1871.         if not self.host.isControl:

  1872.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1873.         else:

  1874.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1875. 

  1876.         settings2 = QSafeSettings("falkTX", "Carla2")

  1877. 

  1878.         if self.host.experimental:

  1879.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1880.             self.ui.act_plugin_add_jack.setVisible(visible)

  1881.         else:

  1882.             self.ui.act_plugin_add_jack.setVisible(False)

  1883. 

  1884.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1885. 

  1886.         setEngineSettings(self.host)

  1887.         self.restartTimersIfNeeded()

  1888. 

  1889.         return settings

  1890. 

  1891.     # --------------------------------------------------------------------------------------------------------

  1892.     # Settings (helpers)

  1893. 

  1894.     def enableTransport(self, enabled):

  1895.         self.ui.group_transport_controls.setEnabled(enabled)

  1896.         self.ui.group_transport_settings.setEnabled(enabled)

  1897. 

  1898.     @pyqtSlot()

  1899.     def slot_restoreCanvasScrollbarValues(self):

  1900.         settings = QSafeSettings()

  1901.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1902.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1903.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  1904.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  1905. 

  1906.     # --------------------------------------------------------------------------------------------------------

  1907.     # Settings (menu actions)

  1908. 

  1909.     @pyqtSlot(bool)

  1910.     def slot_showSidePanel(self, yesNo):

  1911.         self.ui.dockWidget.setEnabled(yesNo)

  1912.         self.ui.dockWidget.setVisible(yesNo)

  1913. 

  1914.     @pyqtSlot(bool)

  1915.     def slot_showToolbar(self, yesNo):

  1916.         self.ui.toolBar.setEnabled(yesNo)

  1917.         self.ui.toolBar.setVisible(yesNo)

  1918. 

  1919.     @pyqtSlot(bool)

  1920.     def slot_showCanvasMeters(self, yesNo):

  1921.         self.ui.peak_in.setVisible(yesNo)

  1922.         self.ui.peak_out.setVisible(yesNo)

  1923.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1924. 

  1925.     @pyqtSlot(bool)

  1926.     def slot_showCanvasKeyboard(self, yesNo):

  1927.         self.ui.scrollArea.setVisible(yesNo)

  1928.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1929. 

  1930.     @pyqtSlot()

  1931.     def slot_configureCarla(self):

  1932.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1933.         if not dialog.exec_():

  1934.             return

  1935. 

  1936.         self.loadSettings(False)

  1937. 

  1938.         patchcanvas.clear()

  1939. 

  1940.         self.setupCanvas()

  1941.         self.slot_miniCanvasCheckAll()

  1942. 

  1943.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1944.             pass

  1945.         elif self.host.is_engine_running():

  1946.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1947. 

  1948.     # --------------------------------------------------------------------------------------------------------

  1949.     # About (menu actions)

  1950. 

  1951.     @pyqtSlot()

  1952.     def slot_aboutCarla(self):

  1953.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1954. 

  1955.     @pyqtSlot()

  1956.     def slot_aboutJuce(self):

  1957.         JuceAboutW(self.fParentOrSelf).exec_()

  1958. 

  1959.     @pyqtSlot()

  1960.     def slot_aboutQt(self):

  1961.         QApplication.instance().aboutQt()

  1962. 

  1963.     # --------------------------------------------------------------------------------------------------------

  1964.     # Disk (menu actions)

  1965. 

  1966.     @pyqtSlot(int)

  1967.     def slot_diskFolderChanged(self, index):

  1968.         if index < 0:

  1969.             return

  1970.         elif index == 0:

  1971.             filename = HOME

  1972.             self.ui.b_disk_remove.setEnabled(False)

  1973.         else:

  1974.             filename = self.ui.cb_disk.itemData(index)

  1975.             self.ui.b_disk_remove.setEnabled(True)

  1976. 

  1977.         self.fDirModel.setRootPath(filename)

  1978.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1979. 

  1980.     @pyqtSlot()

  1981.     def slot_diskFolderAdd(self):

  1982.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1983. 

  1984.         if newPath:

  1985.             if newPath[-1] == os.sep:

  1986.                 newPath = newPath[:-1]

  1987.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1988.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1989.             self.ui.b_disk_remove.setEnabled(True)

  1990. 

  1991.     @pyqtSlot()

  1992.     def slot_diskFolderRemove(self):

  1993.         index = self.ui.cb_disk.currentIndex()

  1994. 

  1995.         if index <= 0:

  1996.             return

  1997. 

  1998.         self.ui.cb_disk.removeItem(index)

  1999. 

  2000.         if self.ui.cb_disk.currentIndex() == 0:

  2001.             self.ui.b_disk_remove.setEnabled(False)

  2002. 

  2003.     @pyqtSlot(QModelIndex)

  2004.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2005.         filename = self.fDirModel.filePath(modelIndex)

  2006. 

  2007.         if not self.ui.listWidget.isDragUrlValid(filename):

  2008.             return

  2009. 

  2010.         if not self.host.load_file(filename):

  2011.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2012.                              self.tr("Failed to load file"),

  2013.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2014. 

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

  2016.     # Transport

  2017. 

  2018.     def refreshTransport(self, forced = False):

  2019.         if not self.ui.l_transport_time.isVisible():

  2020.             return

  2021.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2022.             return

  2023. 

  2024.         timeInfo = self.host.get_transport_info()

  2025.         playing  = timeInfo['playing']

  2026.         frame    = timeInfo['frame']

  2027.         bpm      = timeInfo['bpm']

  2028. 

  2029.         if playing != self.fLastTransportState or forced:

  2030.             if playing:

  2031.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  2032.                 self.ui.b_transport_play.setChecked(True)

  2033.                 self.ui.b_transport_play.setIcon(icon)

  2034.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2035.             else:

  2036.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  2037.                 self.ui.b_transport_play.setChecked(False)

  2038.                 self.ui.b_transport_play.setIcon(icon)

  2039.                 #self.ui.b_play.setText(self.tr("&Play"))

  2040. 

  2041.             self.fLastTransportState = playing

  2042. 

  2043.         if frame != self.fLastTransportFrame or forced:

  2044.             self.fLastTransportFrame = frame

  2045. 

  2046.             time = frame / self.fSampleRate

  2047.             secs =  time % 60

  2048.             mins = (time / 60) % 60

  2049.             hrs  = (time / 3600) % 60

  2050.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2051. 

  2052.             frame1 =  frame % 1000

  2053.             frame2 = (frame / 1000) % 1000

  2054.             frame3 = (frame / 1000000) % 1000

  2055.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2056. 

  2057.             bar  = timeInfo['bar']

  2058.             beat = timeInfo['beat']

  2059.             tick = timeInfo['tick']

  2060.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2061. 

  2062.         if bpm != self.fLastTransportBPM or forced:

  2063.             self.fLastTransportBPM = bpm

  2064. 

  2065.             if bpm > 0.0:

  2066.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2067.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2068.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2069.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2070.             else:

  2071.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2072. 

  2073.     # --------------------------------------------------------------------------------------------------------

  2074.     # Transport (menu actions)

  2075. 

  2076.     @pyqtSlot(bool)

  2077.     def slot_transportPlayPause(self, toggled):

  2078.         if self.host.isPlugin or not self.host.is_engine_running():

  2079.             return

  2080. 

  2081.         if toggled:

  2082.             self.host.transport_play()

  2083.         else:

  2084.             self.host.transport_pause()

  2085. 

  2086.         self.refreshTransport()

  2087. 

  2088.     @pyqtSlot()

  2089.     def slot_transportStop(self):

  2090.         if self.host.isPlugin or not self.host.is_engine_running():

  2091.             return

  2092. 

  2093.         self.host.transport_pause()

  2094.         self.host.transport_relocate(0)

  2095. 

  2096.         self.refreshTransport()

  2097. 

  2098.     @pyqtSlot()

  2099.     def slot_transportBackwards(self):

  2100.         if self.host.isPlugin or not self.host.is_engine_running():

  2101.             return

  2102. 

  2103.         newFrame = self.host.get_current_transport_frame() - 100000

  2104. 

  2105.         if newFrame < 0:

  2106.             newFrame = 0

  2107. 

  2108.         self.host.transport_relocate(newFrame)

  2109. 

  2110.     @pyqtSlot(float)

  2111.     def slot_transportBpmChanged(self, newValue):

  2112.         self.host.transport_bpm(newValue)

  2113. 

  2114.     @pyqtSlot()

  2115.     def slot_transportForwards(self):

  2116.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2117.             return

  2118. 

  2119.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2120.         self.host.transport_relocate(newFrame)

  2121. 

  2122.     @pyqtSlot(bool)

  2123.     def slot_transportJackEnabled(self, clicked):

  2124.         if not self.host.is_engine_running():

  2125.             return

  2126.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2127.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2128.                                     self.host.transportMode,

  2129.                                     self.host.transportExtra)

  2130. 

  2131.     @pyqtSlot(bool)

  2132.     def slot_transportLinkEnabled(self, clicked):

  2133.         if not self.host.is_engine_running():

  2134.             return

  2135.         extra = ":link:" if clicked else ""

  2136.         self.host.transportExtra = extra

  2137.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2138.                                     self.host.transportMode,

  2139.                                     self.host.transportExtra)

  2140. 

  2141.     # --------------------------------------------------------------------------------------------------------

  2142.     # Other

  2143. 

  2144.     @pyqtSlot(bool)

  2145.     def slot_xrunClear(self):

  2146.         self.host.clear_engine_xruns()

  2147. 

  2148.     # --------------------------------------------------------------------------------------------------------

  2149.     # Canvas scrollbars

  2150. 

  2151.     @pyqtSlot(int)

  2152.     def slot_horizontalScrollBarChanged(self, value):

  2153.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2154.         if maximum == 0:

  2155.             xp = 0

  2156.         else:

  2157.             xp = float(value) / maximum

  2158.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2159.         self.updateCanvasInitialPos()

  2160. 

  2161.     @pyqtSlot(int)

  2162.     def slot_verticalScrollBarChanged(self, value):

  2163.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2164.         if maximum == 0:

  2165.             yp = 0

  2166.         else:

  2167.             yp = float(value) / maximum

  2168.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2169.         self.updateCanvasInitialPos()

  2170. 

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

  2172.     # Canvas keyboard

  2173. 

  2174.     @pyqtSlot(int)

  2175.     def slot_noteOn(self, note):

  2176.         for pluginId in self.fSelectedPlugins:

  2177.             self.host.send_midi_note(pluginId, 0, note, 100)

  2178. 

  2179.             pedit = self.getPluginEditDialog(pluginId)

  2180.             pedit.noteOn(0, note, 100)

  2181. 

  2182.     @pyqtSlot(int)

  2183.     def slot_noteOff(self, note):

  2184.         for pluginId in self.fSelectedPlugins:

  2185.             self.host.send_midi_note(pluginId, 0, note, 0)

  2186. 

  2187.             pedit = self.getPluginEditDialog(pluginId)

  2188.             pedit.noteOff(0, note)

  2189. 

  2190.     # --------------------------------------------------------------------------------------------------------

  2191.     # Canvas keyboard (host callbacks)

  2192. 

  2193.     @pyqtSlot(int, int, int, int)

  2194.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2195.         if pluginId in self.fSelectedPlugins:

  2196.             self.ui.keyboard.sendNoteOn(note, False)

  2197. 

  2198.     @pyqtSlot(int, int, int)

  2199.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2200.         if pluginId in self.fSelectedPlugins:

  2201.             self.ui.keyboard.sendNoteOff(note, False)

  2202. 

  2203.     # --------------------------------------------------------------------------------------------------------

  2204. 

  2205.     @pyqtSlot(int)

  2206.     def slot_handleUpdateCallback(self, pluginId):

  2207.         pitem = self.getPluginItem(pluginId)

  2208. 

  2209.         if pitem is None:

  2210.             return

  2211. 

  2212.         wasCompacted = pitem.isCompacted()

  2213.         isCompacted  = wasCompacted

  2214. 

  2215.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2216.         if not check:

  2217.             return

  2218.         isCompacted = bool(check == "true")

  2219. 

  2220.         if wasCompacted == isCompacted:

  2221.             return

  2222. 

  2223.         pitem.recreateWidget(True)

  2224. 

  2225.     # --------------------------------------------------------------------------------------------------------

  2226.     # MiniCanvas stuff

  2227. 

  2228.     @pyqtSlot()

  2229.     def slot_miniCanvasCheckAll(self):

  2230.         self.slot_miniCanvasCheckSize()

  2231.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2232.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2233. 

  2234.     @pyqtSlot()

  2235.     def slot_miniCanvasCheckSize(self):

  2236.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2237.             return

  2238. 

  2239.         currentIndex = self.ui.tabWidget.currentIndex()

  2240. 

  2241.         if currentIndex == 1:

  2242.             width  = self.ui.graphicsView.width()

  2243.             height = self.ui.graphicsView.height()

  2244.         else:

  2245.             self.ui.tabWidget.blockSignals(True)

  2246.             self.ui.tabWidget.setCurrentIndex(1)

  2247.             width  = self.ui.graphicsView.width()

  2248.             height = self.ui.graphicsView.height()

  2249.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2250.             self.ui.tabWidget.blockSignals(False)

  2251. 

  2252.         self.scene.updateLimits()

  2253. 

  2254.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2255. 

  2256.     @pyqtSlot(float, float)

  2257.     def slot_miniCanvasMoved(self, xp, yp):

  2258.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2259.         vsb = self.ui.graphicsView.verticalScrollBar()

  2260.         hsb.setValue(xp * hsb.maximum())

  2261.         vsb.setValue(yp * vsb.maximum())

  2262.         self.updateCanvasInitialPos()

  2263. 

  2264.     # --------------------------------------------------------------------------------------------------------

  2265.     # Logs autoscroll, save and clear

  2266. 

  2267.     @pyqtSlot(int)

  2268.     def slot_toggleLogAutoscroll(self, checkState):

  2269.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2270.         if self.autoscrollOnNewLog:

  2271.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2272. 

  2273.     @pyqtSlot(int)

  2274.     def slot_logSliderMoved(self, slider_pos):

  2275.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2276.             self.lastLogSliderPos = slider_pos

  2277.         else:

  2278.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2279. 

  2280.     @pyqtSlot()

  2281.     def slot_logButtonsState(self, enabled=True):

  2282.         self.ui.logs_clear.setEnabled(enabled)

  2283.         self.ui.logs_save.setEnabled(enabled)

  2284. 

  2285.     @pyqtSlot()

  2286.     def slot_logSave(self):

  2287.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2288.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2289. 

  2290.         if not filename:

  2291.             return

  2292. 

  2293.         try:

  2294.             with open(filename, "w") as logfile:

  2295.                 logfile.write(self.ui.text_logs.toPlainText())

  2296.                 logfile.close()

  2297.         except:

  2298.             return

  2299. 

  2300.     @pyqtSlot()

  2301.     def slot_logClear(self):

  2302.         self.ui.text_logs.clear()

  2303.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2304.         self.slot_logButtonsState(False)

  2305. 

  2306.     # --------------------------------------------------------------------------------------------------------

  2307.     # Timers

  2308. 

  2309.     def startTimers(self):

  2310.         if self.fIdleTimerFast == 0:

  2311.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2312. 

  2313.         if self.fIdleTimerSlow == 0:

  2314.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2315. 

  2316.     def restartTimersIfNeeded(self):

  2317.         if self.fIdleTimerFast != 0:

  2318.             self.killTimer(self.fIdleTimerFast)

  2319.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2320. 

  2321.         if self.fIdleTimerSlow != 0:

  2322.             self.killTimer(self.fIdleTimerSlow)

  2323.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2324. 

  2325.     def killTimers(self):

  2326.         if self.fIdleTimerFast != 0:

  2327.             self.killTimer(self.fIdleTimerFast)

  2328.             self.fIdleTimerFast = 0

  2329. 

  2330.         if self.fIdleTimerSlow != 0:

  2331.             self.killTimer(self.fIdleTimerSlow)

  2332.             self.fIdleTimerSlow = 0

  2333. 

  2334.     # --------------------------------------------------------------------------------------------------------

  2335.     # Misc

  2336. 

  2337.     @pyqtSlot(int)

  2338.     def slot_tabChanged(self, index):

  2339.         if index != 1:

  2340.             return

  2341. 

  2342.         self.ui.graphicsView.setFocus()

  2343. 

  2344.     @pyqtSlot(int)

  2345.     def slot_handleReloadAllCallback(self, pluginId):

  2346.         if pluginId >= self.fPluginCount:

  2347.             return

  2348. 

  2349.         pitem = self.fPluginList[pluginId]

  2350.         if pitem is None:

  2351.             return

  2352. 

  2353.         pitem.recreateWidget()

  2354. 

  2355.     # --------------------------------------------------------------------------------------------------------

  2356. 

  2357.     @pyqtSlot(int, int, str)

  2358.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2359.         if opcode == NSM_CALLBACK_INIT:

  2360.             return

  2361. 

  2362.         # Error

  2363.         elif opcode == NSM_CALLBACK_ERROR:

  2364.             pass

  2365. 

  2366.         # Reply

  2367.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2368.             self.fFirstEngineInit    = False

  2369.             self.fSessionManagerName = valueStr

  2370.             self.setProperWindowTitle()

  2371. 

  2372.         # Open

  2373.         elif opcode == NSM_CALLBACK_OPEN:

  2374.             self.fClientName      = os.path.basename(valueStr)

  2375.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2376.             self.setProperWindowTitle()

  2377. 

  2378.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2379.             self.slot_engineStop(True)

  2380.             return

  2381. 

  2382.         # Save

  2383.         elif opcode == NSM_CALLBACK_SAVE:

  2384.             self.saveProjectNow()

  2385. 

  2386.         # Session is Loaded

  2387.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2388.             pass

  2389. 

  2390.         # Show Optional Gui

  2391.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2392.             self.show()

  2393. 

  2394.         # Hide Optional Gui

  2395.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2396.             self.hide()

  2397. 

  2398.         self.host.nsm_ready(opcode)

  2399. 

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

  2401. 

  2402.     def fixLogText(self, text):

  2403.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2404. 

  2405.     @pyqtSlot(int, int, int, int, float, str)

  2406.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2407.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2408. 

  2409.     @pyqtSlot(str)

  2410.     def slot_handleInfoCallback(self, info):

  2411.         QMessageBox.information(self, "Information", info)

  2412. 

  2413.     @pyqtSlot(str)

  2414.     def slot_handleErrorCallback(self, error):

  2415.         QMessageBox.critical(self, "Error", error)

  2416. 

  2417.     @pyqtSlot()

  2418.     def slot_handleQuitCallback(self):

  2419.         self.fIsProjectLoading = False

  2420.         self.killTimers()

  2421.         self.removeAllPlugins()

  2422.         self.projectLoadingFinished()

  2423. 

  2424.     @pyqtSlot(int)

  2425.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2426.         # FIXME

  2427.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2428.             patchcanvas.redrawPluginGroup(pluginId)

  2429. 

  2430.     # --------------------------------------------------------------------------------------------------------

  2431. 

  2432.     @pyqtSlot()

  2433.     def slot_handleSIGUSR1(self):

  2434.         print("Got SIGUSR1 -> Saving project now")

  2435.         self.slot_fileSave()

  2436. 

  2437.     @pyqtSlot()

  2438.     def slot_handleSIGTERM(self):

  2439.         print("Got SIGTERM -> Closing now")

  2440.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2441.         self.slot_engineStop(True)

  2442. 

  2443.     # --------------------------------------------------------------------------------------------------------

  2444.     # Internal stuff

  2445. 

  2446.     def getExtraPtr(self, plugin):

  2447.         ptype = plugin['type']

  2448. 

  2449.         if ptype == PLUGIN_LADSPA:

  2450.             uniqueId = plugin['uniqueId']

  2451. 

  2452.             self.maybeLoadRDFs()

  2453. 

  2454.             for rdfItem in self.fLadspaRdfList:

  2455.                 if rdfItem.UniqueID == uniqueId:

  2456.                     return pointer(rdfItem)

  2457. 

  2458.         elif ptype == PLUGIN_SF2:

  2459.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2460.                 return self._true

  2461. 

  2462.         return None

  2463. 

  2464.     def maybeLoadRDFs(self):

  2465.         if not self.fLadspaRdfNeedsUpdate:

  2466.             return

  2467. 

  2468.         self.fLadspaRdfNeedsUpdate = False

  2469.         self.fLadspaRdfList = []

  2470. 

  2471.         if not haveLRDF:

  2472.             return

  2473. 

  2474.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2475.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2476. 

  2477.         if os.path.exists(frLadspaFile):

  2478.             frLadspa = open(frLadspaFile, 'r')

  2479. 

  2480.             try:

  2481.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2482.             except:

  2483.                 pass

  2484. 

  2485.             frLadspa.close()

  2486. 

  2487.     # --------------------------------------------------------------------------------------------------------

  2488. 

  2489.     def getPluginCount(self):

  2490.         return self.fPluginCount

  2491. 

  2492.     def getPluginItem(self, pluginId):

  2493.         if pluginId >= self.fPluginCount:

  2494.             return None

  2495. 

  2496.         pitem = self.fPluginList[pluginId]

  2497.         if pitem is None:

  2498.             return None

  2499.         #if False:

  2500.             #return CarlaRackItem(self, 0, False)

  2501. 

  2502.         return pitem

  2503. 

  2504.     def getPluginEditDialog(self, pluginId):

  2505.         if pluginId >= self.fPluginCount:

  2506.             return None

  2507. 

  2508.         pitem = self.fPluginList[pluginId]

  2509.         if pitem is None:

  2510.             return None

  2511.         if False:

  2512.             return PluginEdit(self, self.host, 0)

  2513. 

  2514.         return pitem.getEditDialog()

  2515. 

  2516.     def getPluginSlotWidget(self, pluginId):

  2517.         if pluginId >= self.fPluginCount:

  2518.             return None

  2519. 

  2520.         pitem = self.fPluginList[pluginId]

  2521.         if pitem is None:

  2522.             return None

  2523.         #if False:

  2524.             #return AbstractPluginSlot()

  2525. 

  2526.         return pitem.getWidget()

  2527. 

  2528.     # --------------------------------------------------------------------------------------------------------

  2529. 

  2530.     def waitForPendingEvents(self):

  2531.         pass

  2532. 

  2533.     # --------------------------------------------------------------------------------------------------------

  2534.     # show/hide event

  2535. 

  2536.     def showEvent(self, event):

  2537.         self.getAndRefreshRuntimeInfo()

  2538.         self.refreshTransport(True)

  2539.         QMainWindow.showEvent(self, event)

  2540. 

  2541.         if QT_VERSION >= 0x50600:

  2542.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2543.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2544. 

  2545.         # set our gui as parent for all plugins UIs

  2546.         if self.host.manageUIs and not self.host.isControl:

  2547.             if MACOS:

  2548.                 nsViewPtr = int(self.winId())

  2549.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2550.             else:

  2551.                 winIdStr = "%x" % int(self.winId())

  2552.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2553. 

  2554.     def hideEvent(self, event):

  2555.         # disable parent

  2556.         if not self.host.isControl:

  2557.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2558. 

  2559.         QMainWindow.hideEvent(self, event)

  2560. 

  2561.     # --------------------------------------------------------------------------------------------------------

  2562.     # resize event

  2563. 

  2564.     def resizeEvent(self, event):

  2565.         QMainWindow.resizeEvent(self, event)

  2566. 

  2567.         if self.fWithCanvas:

  2568.             self.slot_miniCanvasCheckSize()

  2569. 

  2570.     # --------------------------------------------------------------------------------------------------------

  2571.     # timer event

  2572. 

  2573.     def refreshRuntimeInfo(self, load, xruns):

  2574.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2575.         txt2 = "" if (xruns == 1) else "s"

  2576.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2577.         self.ui.pb_dsp_load.setValue(int(load))

  2578. 

  2579.     def getAndRefreshRuntimeInfo(self):

  2580.         if not self.ui.pb_dsp_load.isVisible():

  2581.             return

  2582.         if not self.host.is_engine_running():

  2583.             return

  2584.         info = self.host.get_runtime_engine_info()

  2585.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2586. 

  2587.     def idleFast(self):

  2588.         self.host.engine_idle()

  2589.         self.refreshTransport()

  2590. 

  2591.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2592.             return

  2593. 

  2594.         for pitem in self.fPluginList:

  2595.             if pitem is None:

  2596.                 break

  2597. 

  2598.             pitem.getWidget().idleFast()

  2599. 

  2600.         for pluginId in self.fSelectedPlugins:

  2601.             self.fPeaksCleared = False

  2602.             if self.ui.peak_in.isVisible():

  2603.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2604.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2605.             if self.ui.peak_out.isVisible():

  2606.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2607.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2608.             return

  2609. 

  2610.         if self.fPeaksCleared:

  2611.             return

  2612. 

  2613.         self.fPeaksCleared = True

  2614.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2615.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2616.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2617.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2618. 

  2619.     def idleSlow(self):

  2620.         self.getAndRefreshRuntimeInfo()

  2621. 

  2622.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2623.             return

  2624. 

  2625.         for pitem in self.fPluginList:

  2626.             if pitem is None:

  2627.                 break

  2628. 

  2629.             pitem.getWidget().idleSlow()

  2630. 

  2631.     def timerEvent(self, event):

  2632.         if event.timerId() == self.fIdleTimerFast:

  2633.             self.idleFast()

  2634. 

  2635.         elif event.timerId() == self.fIdleTimerSlow:

  2636.             self.idleSlow()

  2637. 

  2638.         QMainWindow.timerEvent(self, event)

  2639. 

  2640.     # --------------------------------------------------------------------------------------------------------

  2641.     # color/style change event

  2642. 

  2643.     def changeEvent(self, event):

  2644.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2645.             self.updateStyle()

  2646.         QMainWindow.changeEvent(self, event)

  2647. 

  2648.     def updateStyle(self):

  2649.         # Rack padding images setup

  2650.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2651.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2652. 

  2653.         min_value = 0.07

  2654. 

  2655.         if PYQT_VERSION >= 0x50600:

  2656.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2657.         else:

  2658.             value_fix = 1.5

  2659. 

  2660.         rack_pal = self.ui.rack.palette()

  2661.         bg_color = rack_pal.window().color()

  2662.         fg_color = rack_pal.text().color()

  2663.         bg_value = 1.0 - bg_color.blackF()

  2664.         if bg_value != 0.0 and bg_value < min_value:

  2665.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2666.         else:

  2667.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2668. 

  2669.         painter = QPainter()

  2670.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2671. 

  2672.         painter.begin(rack_imgL)

  2673.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2674.         painter.setBrush(pad_color)

  2675.         painter.drawRect(fillRect)

  2676.         painter.end()

  2677.         rack_pixmapL = QPixmap(rack_imgL)

  2678.         self.imgL_palette = QPalette()

  2679.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2680.         self.ui.pad_left.setPalette(self.imgL_palette)

  2681.         self.ui.pad_left.setAutoFillBackground(True)

  2682. 

  2683.         painter.begin(rack_imgR)

  2684.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2685.         painter.setBrush(pad_color)

  2686.         painter.drawRect(fillRect)

  2687.         painter.end()

  2688.         rack_pixmapR = QPixmap(rack_imgR)

  2689.         self.imgR_palette = QPalette()

  2690.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2691.         self.ui.pad_right.setPalette(self.imgR_palette)

  2692.         self.ui.pad_right.setAutoFillBackground(True)

  2693. 

  2694.         # qt's rgba is actually argb, so convert that

  2695.         bg_color_value = bg_color.rgba()

  2696.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2697. 

  2698.         fg_color_value = fg_color.rgba()

  2699.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2700. 

  2701.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2702.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2703. 

  2704.     # --------------------------------------------------------------------------------------------------------

  2705.     # paint event

  2706. 

  2707.     #def paintEvent(self, event):

  2708.         #QMainWindow.paintEvent(self, event)

  2709. 

  2710.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2711.             #return

  2712. 

  2713.         #painter = QPainter(self)

  2714.         #painter.setBrush(QColor(36, 36, 36))

  2715.         #painter.setPen(QColor(62, 62, 62))

  2716.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2717. 

  2718.     # --------------------------------------------------------------------------------------------------------

  2719.     # close event

  2720. 

  2721.     def shouldIgnoreClose(self):

  2722.         if self.host.isControl or self.host.isPlugin:

  2723.             return False

  2724.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2725.             return False

  2726.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2727.             return QMessageBox.question(self, self.tr("Quit"),

  2728.                                               self.tr("Are you sure you want to quit Carla?"),

  2729.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2730.         return False

  2731. 

  2732.     def closeEvent(self, event):

  2733.         if self.shouldIgnoreClose():

  2734.             event.ignore()

  2735.             return

  2736. 

  2737.         patchcanvas.handleAllPluginsRemoved()

  2738. 

  2739.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2740.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2741.             self.fMacClosingHelper = False

  2742.             event.ignore()

  2743. 

  2744.             for i in reversed(range(self.fPluginCount)):

  2745.                 self.host.show_custom_ui(i, False)

  2746. 

  2747.             QTimer.singleShot(100, self.close)

  2748.             return

  2749. 

  2750.         self.killTimers()

  2751.         self.saveSettings()

  2752. 

  2753.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2754.             if not self.slot_engineStop(True):

  2755.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2756.                 event.ignore()

  2757.                 return

  2758. 

  2759.         QMainWindow.closeEvent(self, event)

  2760. 

  2761. # ------------------------------------------------------------------------------------------------

  2762. # Canvas callback

  2763. 

  2764. def canvasCallback(action, value1, value2, valueStr):

  2765.     host = gCarla.gui.host

  2766. 

  2767.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2768.         return

  2769. 

  2770.     if action == patchcanvas.ACTION_GROUP_INFO:

  2771.         pass

  2772. 

  2773.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2774.         pass

  2775. 

  2776.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2777.         groupId = value1

  2778.         patchcanvas.splitGroup(groupId)

  2779.         gCarla.gui.updateMiniCanvasLater()

  2780. 

  2781.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2782.         groupId = value1

  2783.         patchcanvas.joinGroup(groupId)

  2784.         gCarla.gui.updateMiniCanvasLater()

  2785. 

  2786.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2787.         if gCarla.gui.fIsProjectLoading:

  2788.             return

  2789.         if not host.is_engine_running():

  2790.             return

  2791.         groupId = value1

  2792.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2793.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2794.         gCarla.gui.updateMiniCanvasLater()

  2795. 

  2796.     elif action == patchcanvas.ACTION_PORT_INFO:

  2797.         pass

  2798. 

  2799.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2800.         pass

  2801. 

  2802.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2803.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2804. 

  2805.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2806.             print("Connection failed:", host.get_last_error())

  2807. 

  2808.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2809.         connectionId = value1

  2810. 

  2811.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2812.             print("Disconnect failed:", host.get_last_error())

  2813. 

  2814.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2815.         pluginId = value1

  2816. 

  2817.         if not host.clone_plugin(pluginId):

  2818.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2819.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2820. 

  2821.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2822.         pluginId = value1

  2823.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2824. 

  2825.         if pwidget is not None:

  2826.             pwidget.showEditDialog()

  2827. 

  2828.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2829.         pluginId = value1

  2830.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2831. 

  2832.         if pwidget is not None:

  2833.             pwidget.showRenameDialog()

  2834. 

  2835.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2836.         pluginId = value1

  2837.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2838. 

  2839.         if pwidget is not None:

  2840.             pwidget.showReplaceDialog()

  2841. 

  2842.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2843.         pluginId = value1

  2844. 

  2845.         if not host.remove_plugin(pluginId):

  2846.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2847.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2848. 

  2849.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2850.         pluginId = value1

  2851.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2852. 

  2853.         if pwidget is not None:

  2854.             pwidget.showCustomUI()

  2855. 

  2856.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2857.         gCarla.gui.slot_showPluginActionsMenu()

  2858. 

  2859.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2860.         if gCarla.gui.fIsProjectLoading:

  2861.             return

  2862.         if not host.is_engine_running():

  2863.             return

  2864.         pluginId = value1

  2865.         width, height = [int(v) for v in valueStr.split(":")]

  2866.         return host.render_inline_display(pluginId, width, height)

  2867. 

  2868. # ------------------------------------------------------------------------------------------------------------

  2869. # Engine callback

  2870. 

  2871. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2872.     # kdevelop likes this :)

  2873.     if False: host = CarlaHostNull()

  2874. 

  2875.     valueStr = charPtrToString(valueStr)

  2876. 

  2877.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2878.         host.processMode   = value1

  2879.         host.transportMode = value2

  2880.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2881.         host.processMode   = value1

  2882.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2883.         host.transportMode  = value1

  2884.         host.transportExtra = valueStr

  2885. 

  2886.     if action == ENGINE_CALLBACK_DEBUG:

  2887.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2888.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2889.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2890.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2891.         host.PluginRemovedCallback.emit(pluginId)

  2892.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2893.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2894.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2895.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2896.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2897.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2898.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2899.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2900.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  2901.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  2902.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  2903.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  2904.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  2905.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2906.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2907.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2908.         host.ProgramChangedCallback.emit(pluginId, value1)

  2909.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2910.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2911.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2912.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2913.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2914.         host.UiStateChangedCallback.emit(pluginId, value1)

  2915.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2916.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2917.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2918.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2919.     elif action == ENGINE_CALLBACK_UPDATE:

  2920.         host.UpdateCallback.emit(pluginId)

  2921.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2922.         host.ReloadInfoCallback.emit(pluginId)

  2923.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2924.         host.ReloadParametersCallback.emit(pluginId)

  2925.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2926.         host.ReloadProgramsCallback.emit(pluginId)

  2927.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2928.         host.ReloadAllCallback.emit(pluginId)

  2929.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2930.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2931.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2932.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2933.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2934.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2935.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2936.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2937.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  2938.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  2939.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2940.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2941.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2942.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2943.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2944.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2945.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2946.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2947.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2948.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2949.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2950.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2951.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2952.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2953.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2954.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2955.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2956.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2957.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2958.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2959.         host.EngineStoppedCallback.emit()

  2960.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2961.         host.ProcessModeChangedCallback.emit(value1)

  2962.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2963.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2964.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2965.         host.BufferSizeChangedCallback.emit(value1)

  2966.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2967.         host.SampleRateChangedCallback.emit(valuef)

  2968.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2969.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2970.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2971.         host.ProjectLoadFinishedCallback.emit()

  2972.     elif action == ENGINE_CALLBACK_NSM:

  2973.         host.NSMCallback.emit(value1, value2, valueStr)

  2974.     elif action == ENGINE_CALLBACK_IDLE:

  2975.         QApplication.processEvents()

  2976.     elif action == ENGINE_CALLBACK_INFO:

  2977.         host.InfoCallback.emit(valueStr)

  2978.     elif action == ENGINE_CALLBACK_ERROR:

  2979.         host.ErrorCallback.emit(valueStr)

  2980.     elif action == ENGINE_CALLBACK_QUIT:

  2981.         host.QuitCallback.emit()

  2982.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2983.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2984.     else:

  2985.         print("unhandled action", action)

  2986. 

  2987. # ------------------------------------------------------------------------------------------------------------

  2988. # File callback

  2989. 

  2990. def fileCallback(ptr, action, isDir, title, filter):

  2991.     title  = charPtrToString(title)

  2992.     filter = charPtrToString(filter)

  2993. 

  2994.     if action == FILE_CALLBACK_OPEN:

  2995.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2996.     elif action == FILE_CALLBACK_SAVE:

  2997.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2998.     else:

  2999.         ret, ok = ("", "")

  3000. 

  3001.     # FIXME use ok value, test if it works as expected

  3002.     if not ret:

  3003.         return None

  3004. 

  3005.     # FIXME

  3006.     global fileRet

  3007.     fileRet = c_char_p(ret.encode("utf-8"))

  3008.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3009.     return retval.contents.value

  3010. 

  3011. # ------------------------------------------------------------------------------------------------------------

  3012. # Init host

  3013. 

  3014. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3015.     pathBinaries, pathResources = getPaths(libPrefix)

  3016. 

  3017.     # --------------------------------------------------------------------------------------------------------

  3018.     # Fail if binary dir is not found

  3019. 

  3020.     if not os.path.exists(pathBinaries):

  3021.         if failError:

  3022.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3023.             sys.exit(1)

  3024.         return

  3025. 

  3026.     # --------------------------------------------------------------------------------------------------------

  3027.     # Check if we should open main lib as local or global

  3028. 

  3029.     settings = QSafeSettings("falkTX", "Carla2")

  3030. 

  3031.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3032. 

  3033.     # --------------------------------------------------------------------------------------------------------

  3034.     # Set Carla library name

  3035. 

  3036.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3037.     libname   = os.path.join(pathBinaries, libname)

  3038.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3039. 

  3040.     # --------------------------------------------------------------------------------------------------------

  3041.     # Print info

  3042. 

  3043.     print("Carla %s started, status:" % VERSION)

  3044.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  3045.     print("  Qt version:     %s" % QT_VERSION_STR)

  3046.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3047.     print("  Binary dir:     %s" % pathBinaries)

  3048.     print("  Resources dir:  %s" % pathResources)

  3049. 

  3050.     # --------------------------------------------------------------------------------------------------------

  3051.     # Init host

  3052. 

  3053.     if failError:

  3054.         # no try

  3055.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3056.     else:

  3057.         try:

  3058.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3059.         except:

  3060.             host = CarlaHostQtNull()

  3061. 

  3062.     host.isControl = isControl

  3063.     host.isPlugin  = isPlugin

  3064. 

  3065.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3066.     host.set_file_callback(fileCallback)

  3067. 

  3068.     # If it's a plugin the paths are already set

  3069.     if not isPlugin:

  3070.         host.pathBinaries  = pathBinaries

  3071.         host.pathResources = pathResources

  3072.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3073.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3074. 

  3075.         if not isControl:

  3076.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3077. 

  3078.     # --------------------------------------------------------------------------------------------------------

  3079.     # Init utils

  3080. 

  3081.     gCarla.utils = CarlaUtils(utilsname)

  3082.     gCarla.utils.set_process_name(os.path.basename(initName))

  3083. 

  3084.     try:

  3085.         sys.stdout.flush()

  3086.     except:

  3087.         pass

  3088. 

  3089.     sys.stdout = CarlaPrint(False)

  3090.     sys.stderr = CarlaPrint(True)

  3091.     sys.excepthook = sys_excepthook

  3092. 

  3093.     # --------------------------------------------------------------------------------------------------------

  3094.     # Done

  3095. 

  3096.     return host

  3097. 

  3098. # ------------------------------------------------------------------------------------------------------------

  3099. # Load host settings

  3100. 

  3101. def loadHostSettings(host):

  3102.     # kdevelop likes this :)

  3103.     if False: host = CarlaHostNull()

  3104. 

  3105.     settings = QSafeSettings("falkTX", "Carla2")

  3106. 

  3107.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3108.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3109.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3110.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3111.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3112.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3113.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3114.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3115.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3116.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool)

  3117.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3118.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3119.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3120.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3121. 

  3122.     if host.isPlugin:

  3123.         return

  3124. 

  3125.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3126. 

  3127.     # enums

  3128.     if host.audioDriverForced is None:

  3129.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3130. 

  3131.     if not host.processModeForced:

  3132.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3133. 

  3134.     host.nextProcessMode = host.processMode

  3135. 

  3136.     # --------------------------------------------------------------------------------------------------------

  3137.     # fix things if needed

  3138. 

  3139.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3140.         if LADISH_APP_NAME:

  3141.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3142.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3143. 

  3144.         else:

  3145.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3146. 

  3147.     if gCarla.nogui:

  3148.         host.showLogs = False

  3149. 

  3150.     # --------------------------------------------------------------------------------------------------------

  3151.     # run headless host now if nogui option enabled

  3152. 

  3153.     if gCarla.nogui:

  3154.         runHostWithoutUI(host)

  3155. 

  3156. # ------------------------------------------------------------------------------------------------------------

  3157. # Set host settings

  3158. 

  3159. def setHostSettings(host):

  3160.     # kdevelop likes this :)

  3161.     if False: host = CarlaHostNull()

  3162. 

  3163.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3164.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3165.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3166.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3167.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3168.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3169.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3170.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3171. 

  3172.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3173.         return

  3174. 

  3175.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3176.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3177.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3178. 

  3179. # ------------------------------------------------------------------------------------------------------------

  3180. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3181. 

  3182. def setEngineSettings(host):

  3183.     # kdevelop likes this :)

  3184.     if False: host = CarlaHostNull()

  3185. 

  3186.     # --------------------------------------------------------------------------------------------------------

  3187.     # do nothing if control

  3188. 

  3189.     if host.isControl:

  3190.         return "Control"

  3191. 

  3192.     # --------------------------------------------------------------------------------------------------------

  3193. 

  3194.     settings = QSafeSettings("falkTX", "Carla2")

  3195. 

  3196.     # --------------------------------------------------------------------------------------------------------

  3197.     # main settings

  3198. 

  3199.     setHostSettings(host)

  3200. 

  3201.     # --------------------------------------------------------------------------------------------------------

  3202.     # file paths

  3203. 

  3204.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3205.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3206. 

  3207.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3208.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3209. 

  3210.     # --------------------------------------------------------------------------------------------------------

  3211.     # plugin paths

  3212. 

  3213.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3214.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3215.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3216.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3217.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3218.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3219.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3220. 

  3221.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3222.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3223.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3224.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3225.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3226.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3227.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3228. 

  3229.     # --------------------------------------------------------------------------------------------------------

  3230.     # don't continue if plugin

  3231. 

  3232.     if host.isPlugin:

  3233.         return "Plugin"

  3234. 

  3235.     # --------------------------------------------------------------------------------------------------------

  3236.     # osc settings

  3237. 

  3238.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3239. 

  3240.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3241.         portNumTCP = -1

  3242.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3243.         portNumTCP = 0

  3244.     else:

  3245.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3246. 

  3247.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3248.         portNumUDP = -1

  3249.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3250.         portNumUDP = 0

  3251.     else:

  3252.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3253. 

  3254.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3255.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3256.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3257. 

  3258.     # --------------------------------------------------------------------------------------------------------

  3259.     # wine settings

  3260. 

  3261.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3262.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3263.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3264.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3265.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3266.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3267. 

  3268.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3269.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3270.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3271.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3272.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3273.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3274. 

  3275.     # --------------------------------------------------------------------------------------------------------

  3276.     # driver and device settings

  3277. 

  3278.     # driver name

  3279.     if host.audioDriverForced is not None:

  3280.         audioDriver = host.audioDriverForced

  3281.     else:

  3282.         try:

  3283.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3284.         except:

  3285.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3286. 

  3287.     # driver options

  3288.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3289.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3290.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3291.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3292. 

  3293.     # Only setup audio things if engine is not running

  3294.     if not host.is_engine_running():

  3295.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3296.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3297. 

  3298.         if not audioDriver.startswith("JACK"):

  3299.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3300.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3301.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3302. 

  3303.     # --------------------------------------------------------------------------------------------------------

  3304.     # fix things if needed

  3305. 

  3306.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3307.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3308.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3309. 

  3310.     # --------------------------------------------------------------------------------------------------------

  3311.     # return selected driver name

  3312. 

  3313.     return audioDriver

  3314. 

  3315. # ------------------------------------------------------------------------------------------------------------

  3316. # Run Carla without showing UI

  3317. 

  3318. def runHostWithoutUI(host):

  3319.     # kdevelop likes this :)

  3320.     if False: host = CarlaHostNull()

  3321. 

  3322.     # --------------------------------------------------------------------------------------------------------

  3323.     # Some initial checks

  3324. 

  3325.     if not gCarla.nogui:

  3326.         return

  3327. 

  3328.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3329. 

  3330.     if not projectFile:

  3331.         print("Carla no-gui mode can only be used together with a project file.")

  3332.         sys.exit(1)

  3333. 

  3334.     # --------------------------------------------------------------------------------------------------------

  3335.     # Additional imports

  3336. 

  3337.     from time import sleep

  3338. 

  3339.     # --------------------------------------------------------------------------------------------------------

  3340.     # Init engine

  3341. 

  3342.     audioDriver = setEngineSettings(host)

  3343.     if not host.engine_init(audioDriver, "Carla"):

  3344.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3345.         sys.exit(1)

  3346. 

  3347.     if not host.load_project(projectFile):

  3348.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3349.         host.engine_close()

  3350.         sys.exit(1)

  3351. 

  3352.     # --------------------------------------------------------------------------------------------------------

  3353.     # Idle

  3354. 

  3355.     print("Carla ready!")

  3356. 

  3357.     while host.is_engine_running() and not gCarla.term:

  3358.         host.engine_idle()

  3359.         sleep(0.0333) # 30 Hz

  3360. 

  3361.     # --------------------------------------------------------------------------------------------------------

  3362.     # Stop

  3363. 

  3364.     host.engine_close()

  3365.     sys.exit(0)

  3366. 

  3367. # ------------------------------------------------------------------------------------------------------------