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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_arrange.setEnabled(False) # TODO, later

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

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

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

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

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

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

  510. 

  511.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  512.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  513. 

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

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

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

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

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

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

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

  521. 

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

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

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

  525. 

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

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

  528. 

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

  530. 

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

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

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

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

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

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

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

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

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

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

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

  542. 

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

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

  545. 

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

  547. 

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

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

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

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

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

  553. 

  554.         # ----------------------------------------------------------------------------------------------------

  555.         # Final setup

  556. 

  557.         self.ui.text_logs.clear()

  558.         self.slot_logButtonsState(False)

  559.         self.setProperWindowTitle()

  560. 

  561.         # Disable non-supported features

  562.         features = gCarla.utils.get_supported_features()

  563. 

  564.         if "link" not in features:

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

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

  567. 

  568.         if "juce" not in features:

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

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

  571. 

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

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

  574.             self.startTimers()

  575. 

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

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

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

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

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

  581. 

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

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

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

  585. 

  586.         # Load initial project file if set

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

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

  589. 

  590.             if projectFile:

  591.                 self.loadProjectLater(projectFile)

  592. 

  593.         # For NSM we wait for the open message

  594.         if NSM_URL and host.nsmOK:

  595.             host.nsm_ready(NSM_CALLBACK_INIT)

  596.             return

  597. 

  598.         if not host.isControl:

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

  600. 

  601.     # --------------------------------------------------------------------------------------------------------

  602.     # Setup

  603. 

  604.     def compactPlugin(self, pluginId):

  605.         if pluginId > self.fPluginCount:

  606.             return

  607. 

  608.         pitem = self.fPluginList[pluginId]

  609. 

  610.         if pitem is None:

  611.             return

  612. 

  613.         pitem.recreateWidget(True)

  614. 

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

  616.         if pluginId > self.fPluginCount:

  617.             return

  618. 

  619.         pitem = self.fPluginList[pluginId]

  620. 

  621.         if pitem is None:

  622.             return

  623. 

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

  625.         pitem.recreateWidget(newColor = color)

  626. 

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

  628.         if pluginId > self.fPluginCount:

  629.             return

  630. 

  631.         pitem = self.fPluginList[pluginId]

  632. 

  633.         if pitem is None:

  634.             return

  635. 

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

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

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

  639.         else:

  640.             pitem.recreateWidget(newSkin = skin)

  641. 

  642.     def findPluginInPatchbay(self, pluginId):

  643.         if pluginId > self.fPluginCount:

  644.             return

  645. 

  646.         if self.fExternalPatchbay:

  647.             self.slot_canvasShowInternal()

  648. 

  649.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  651.             if not patchcanvas.focusGroupUsingGroupName(name):

  652.                 return

  653. 

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

  655. 

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

  657.         if pluginIdA == pluginIdB:

  658.             return

  659.         if pluginIdA < 0 or pluginIdB < 0:

  660.             return

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

  662.             return

  663. 

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

  665. 

  666.         itemA = self.fPluginList[pluginIdA]

  667.         compactA = itemA.isCompacted()

  668.         guiShownA = itemA.isGuiShown()

  669. 

  670.         itemB = self.fPluginList[pluginIdB]

  671.         compactB = itemB.isCompacted()

  672.         guiShownB = itemB.isGuiShown()

  673. 

  674.         itemA.setPluginId(pluginIdA)

  675.         itemA.recreateWidget2(compactB, guiShownB)

  676. 

  677.         itemB.setPluginId(pluginIdB)

  678.         itemB.recreateWidget2(compactA, guiShownA)

  679. 

  680.         if self.fWithCanvas:

  681.             self.slot_canvasRefresh()

  682. 

  683.     def setLoadRDFsNeeded(self):

  684.         self.fLadspaRdfNeedsUpdate = True

  685. 

  686.     def setProperWindowTitle(self):

  687.         title = self.fClientName

  688. 

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

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

  691.         if self.fSessionManagerName:

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

  693. 

  694.         self.setWindowTitle(title)

  695. 

  696.     def updateBufferSize(self, newBufferSize):

  697.         if self.fBufferSize == newBufferSize:

  698.             return

  699.         self.fBufferSize = newBufferSize

  700.         self.ui.cb_buffer_size.clear()

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

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

  703. 

  704.     def updateSampleRate(self, newSampleRate):

  705.         if self.fSampleRate == newSampleRate:

  706.             return

  707.         self.fSampleRate = newSampleRate

  708.         self.ui.cb_sample_rate.clear()

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

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

  711.         self.refreshTransport(True)

  712. 

  713.     # --------------------------------------------------------------------------------------------------------

  714.     # Files

  715. 

  716.     def loadProjectNow(self):

  717.         if not self.fProjectFilename:

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

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

  720.             return

  721. 

  722.         self.projectLoadingStarted()

  723.         self.fIsProjectLoading = True

  724. 

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

  726.             self.fIsProjectLoading = False

  727.             self.projectLoadingFinished()

  728. 

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

  730.                              self.host.get_last_error(),

  731.                              QMessageBox.Ok, QMessageBox.Ok)

  732. 

  733.     def loadProjectLater(self, filename):

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

  735.         self.setProperWindowTitle()

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

  737. 

  738.     def saveProjectNow(self):

  739.         if not self.fProjectFilename:

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

  741. 

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

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

  744.                              self.host.get_last_error(),

  745.                              QMessageBox.Ok, QMessageBox.Ok)

  746.             return

  747. 

  748.     def projectLoadingStarted(self):

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

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

  751. 

  752.     def projectLoadingFinished(self):

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

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

  755. 

  756.         if not self.fWithCanvas:

  757.             return

  758. 

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

  760. 

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

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

  763.             return

  764. 

  765.         try:

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

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

  768.         except:

  769.             return

  770. 

  771.         patchcanvas.restoreGroupPositions(canvasdata)

  772. 

  773.     # --------------------------------------------------------------------------------------------------------

  774.     # Files (menu actions)

  775. 

  776.     @pyqtSlot()

  777.     def slot_fileNew(self):

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

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

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

  781.             return

  782. 

  783.         self.pluginRemoveAll()

  784.         self.fProjectFilename = ""

  785.         self.setProperWindowTitle()

  786.         self.host.clear_project_filename()

  787. 

  788.     @pyqtSlot()

  789.     def slot_fileOpen(self):

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

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

  792. 

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

  794.         if not filename:

  795.             return

  796. 

  797.         newFile = True

  798. 

  799.         if self.fPluginCount > 0:

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

  801.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  803. 

  804.         if newFile:

  805.             self.pluginRemoveAll()

  806.             self.fProjectFilename = filename

  807.             self.setProperWindowTitle()

  808.             self.loadProjectNow()

  809.         else:

  810.             filenameOld = self.fProjectFilename

  811.             self.fProjectFilename = filename

  812.             self.loadProjectNow()

  813.             self.fProjectFilename = filenameOld

  814. 

  815.     @pyqtSlot()

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

  817.         if self.fProjectFilename and not saveAs:

  818.             return self.saveProjectNow()

  819. 

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

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

  822. 

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

  824.         if not filename:

  825.             return

  826. 

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

  828.             filename += ".carxp"

  829. 

  830.         if self.fProjectFilename != filename:

  831.             self.fProjectFilename = filename

  832.             self.setProperWindowTitle()

  833. 

  834.         self.saveProjectNow()

  835. 

  836.     @pyqtSlot()

  837.     def slot_fileSaveAs(self):

  838.         self.slot_fileSave(True)

  839. 

  840.     @pyqtSlot()

  841.     def slot_loadProjectNow(self):

  842.         self.loadProjectNow()

  843. 

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

  845.     # Engine (menu actions)

  846. 

  847.     @pyqtSlot()

  848.     def slot_engineStart(self):

  849.         audioDriver = setEngineSettings(self.host)

  850.         firstInit   = self.fFirstEngineInit

  851. 

  852.         self.fFirstEngineInit = False

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

  854. 

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

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

  857.                 settings = QSafeSettings()

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

  859.                 del settings

  860.                 if lastBpm >= 20.0:

  861.                     self.host.transport_bpm(lastBpm)

  862.             return

  863. 

  864.         elif firstInit:

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

  866.             return

  867. 

  868.         audioError = self.host.get_last_error()

  869. 

  870.         if audioError:

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

  872.         else:

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

  874. 

  875.     @pyqtSlot()

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

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

  878. 

  879.         if self.fPluginCount == 0:

  880.             self.engineStopFinal()

  881.             return True

  882. 

  883.         if not forced:

  884.             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"

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

  886.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  887.             if ask != QMessageBox.Yes:

  888.                 return False

  889. 

  890.         return self.slot_engineStopTryAgain()

  891. 

  892.     @pyqtSlot()

  893.     def slot_engineConfig(self):

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

  895. 

  896.         if not dialog.exec_():

  897.             return

  898. 

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

  900. 

  901.         if self.host.is_engine_running():

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

  903.         else:

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

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

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

  907. 

  908.     @pyqtSlot()

  909.     def slot_engineStopTryAgain(self):

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

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

  912.             return False

  913. 

  914.         self.engineStopFinal()

  915.         return True

  916. 

  917.     def engineStopFinal(self):

  918.         self.killTimers()

  919. 

  920.         if self.host.is_engine_running():

  921.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  922.                 self.removeAllPlugins()

  923.             elif self.fPluginCount != 0:

  924.                 self.fCurrentlyRemovingAllPlugins = True

  925.                 self.projectLoadingStarted()

  926. 

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

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

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

  930. 

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

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

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

  934. 

  935.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  936.             self.close()

  937.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  938.             self.slot_engineStart()

  939.             self.loadProjectNow()

  940.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  941. 

  942.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  943. 

  944.     # --------------------------------------------------------------------------------------------------------

  945.     # Engine (host callbacks)

  946. 

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

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

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

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

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

  952. 

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

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

  955. 

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

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

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

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

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

  961.             self.fExternalPatchbay = False

  962.         else:

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

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

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

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

  967.             self.fExternalPatchbay = True

  968. 

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

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

  971. 

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

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

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

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

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

  977. 

  978.         if not self.host.isPlugin:

  979.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  980. 

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

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

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

  984. 

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

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

  987. 

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

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

  990. 

  991.         self.updateBufferSize(bufferSize)

  992.         self.updateSampleRate(int(sampleRate))

  993.         self.refreshRuntimeInfo(0.0, 0)

  994.         self.startTimers()

  995. 

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

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

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

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

  1000.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1001. 

  1002.     @pyqtSlot()

  1003.     def slot_handleEngineStoppedCallback(self):

  1004.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1005. 

  1006.         patchcanvas.clear()

  1007.         self.killTimers()

  1008. 

  1009.         # just in case

  1010.         self.removeAllPlugins()

  1011.         self.refreshRuntimeInfo(0.0, 0)

  1012. 

  1013.         self.ui.menu_PluginMacros.setEnabled(False)

  1014.         self.ui.menu_Canvas.setEnabled(False)

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

  1016. 

  1017.         if not (self.host.isControl or self.host.isPlugin):

  1018.             self.ui.act_file_save.setEnabled(False)

  1019.             self.ui.act_engine_start.setEnabled(True)

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

  1021. 

  1022.         if self.host.isPlugin or not self.fSessionManagerName:

  1023.             self.ui.act_file_open.setEnabled(False)

  1024.             self.ui.act_file_save_as.setEnabled(False)

  1025. 

  1026.     @pyqtSlot(int, str)

  1027.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1028.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1029. 

  1030.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1031.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1032. 

  1033.     @pyqtSlot(int)

  1034.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1035.         self.updateBufferSize(newBufferSize)

  1036. 

  1037.     @pyqtSlot(float)

  1038.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1039.         self.updateSampleRate(int(newSampleRate))

  1040. 

  1041.     @pyqtSlot(int, bool, str)

  1042.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1043.         if self.fCancelableActionBox is not None:

  1044.             self.fCancelableActionBox.close()

  1045. 

  1046.         if started:

  1047.             self.fCancelableActionBox = QMessageBox(self)

  1048.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1049.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1050.             self.fCancelableActionBox.setText(action)

  1051.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1052.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1053.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1054.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1055.             self.fCancelableActionBox.show()

  1056. 

  1057.         else:

  1058.             self.fCancelableActionBox = None

  1059. 

  1060.     @pyqtSlot()

  1061.     def slot_canlableActionBoxClicked(self):

  1062.         self.host.cancel_engine_action()

  1063. 

  1064.     @pyqtSlot()

  1065.     def slot_handleProjectLoadFinishedCallback(self):

  1066.         self.fIsProjectLoading = False

  1067.         self.projectLoadingFinished()

  1068. 

  1069.     # --------------------------------------------------------------------------------------------------------

  1070.     # Plugins

  1071. 

  1072.     def removeAllPlugins(self):

  1073.         self.ui.act_plugin_remove_all.setEnabled(False)

  1074.         patchcanvas.handleAllPluginsRemoved()

  1075. 

  1076.         while self.ui.listWidget.takeItem(0):

  1077.             pass

  1078. 

  1079.         self.clearSideStuff()

  1080. 

  1081.         for pitem in self.fPluginList:

  1082.             if pitem is None:

  1083.                 continue

  1084. 

  1085.             pitem.close()

  1086.             del pitem

  1087. 

  1088.         self.fPluginCount = 0

  1089.         self.fPluginList  = []

  1090. 

  1091.     # --------------------------------------------------------------------------------------------------------

  1092.     # Plugins (menu actions)

  1093. 

  1094.     def showAddPluginDialog(self):

  1095.         if self.fPluginDatabaseDialog is None:

  1096.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1097.         dialog = self.fPluginDatabaseDialog

  1098. 

  1099.         ret = dialog.exec_()

  1100. 

  1101.         if dialog.fFavoritePluginsChanged:

  1102.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1103. 

  1104.         if not ret:

  1105.             return

  1106. 

  1107.         if not self.host.is_engine_running():

  1108.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1109.             return

  1110. 

  1111.         btype    = dialog.fRetPlugin['build']

  1112.         ptype    = dialog.fRetPlugin['type']

  1113.         filename = dialog.fRetPlugin['filename']

  1114.         label    = dialog.fRetPlugin['label']

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

  1116.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1117. 

  1118.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1119. 

  1120.     def showAddJackAppDialog(self):

  1121.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1122. 

  1123.         if not dialog.exec_():

  1124.             return

  1125. 

  1126.         if not self.host.is_engine_running():

  1127.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1128.             return

  1129. 

  1130.         return dialog.getCommandAndFlags()

  1131. 

  1132.     @pyqtSlot()

  1133.     def slot_favoritePluginAdd(self):

  1134.         plugin = self.sender().data()

  1135. 

  1136.         if plugin is None:

  1137.             return

  1138. 

  1139.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1140.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1141.             CustomMessageBox(self,

  1142.                              QMessageBox.Critical,

  1143.                              self.tr("Error"),

  1144.                              self.tr("Failed to load plugin"),

  1145.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1146. 

  1147.     @pyqtSlot()

  1148.     def slot_showPluginActionsMenu(self):

  1149.         menu = QMenu(self)

  1150. 

  1151.         menu.addSection("Plugins")

  1152.         menu.addAction(self.ui.act_plugin_add)

  1153. 

  1154.         if len(self.fFavoritePlugins) != 0:

  1155.             fmenu = QMenu("Add from favorites", self)

  1156.             for p in self.fFavoritePlugins:

  1157.                 act = fmenu.addAction(p['name'])

  1158.                 act.setData(p)

  1159.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1160.             menu.addMenu(fmenu)

  1161. 

  1162.         menu.addAction(self.ui.act_plugin_remove_all)

  1163. 

  1164.         menu.addSection("All plugins (macros)")

  1165.         menu.addAction(self.ui.act_plugins_enable)

  1166.         menu.addAction(self.ui.act_plugins_disable)

  1167.         menu.addSeparator()

  1168.         menu.addAction(self.ui.act_plugins_volume100)

  1169.         menu.addAction(self.ui.act_plugins_mute)

  1170.         menu.addSeparator()

  1171.         menu.addAction(self.ui.act_plugins_wet100)

  1172.         menu.addAction(self.ui.act_plugins_bypass)

  1173.         menu.addSeparator()

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

  1175.         menu.addSeparator()

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

  1177.         menu.addAction(self.ui.act_plugins_expand)

  1178. 

  1179.         menu.exec_(QCursor.pos())

  1180. 

  1181.     @pyqtSlot()

  1182.     def slot_pluginAdd(self):

  1183.         data = self.showAddPluginDialog()

  1184. 

  1185.         if data is None:

  1186.             return

  1187. 

  1188.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1189. 

  1190.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1191.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1192.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1193. 

  1194.     @pyqtSlot()

  1195.     def slot_confirmRemoveAll(self):

  1196.         if self.fPluginCount == 0:

  1197.             return

  1198. 

  1199.         if QMessageBox.question(self, self.tr("Remove All"),

  1200.                                       self.tr("Are you sure you want to remove all plugins?"),

  1201.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1202.             return

  1203. 

  1204.         self.pluginRemoveAll()

  1205. 

  1206.     def pluginRemoveAll(self):

  1207.         if self.fPluginCount == 0:

  1208.             return

  1209. 

  1210.         self.fCurrentlyRemovingAllPlugins = True

  1211.         self.projectLoadingStarted()

  1212. 

  1213.         if not self.host.remove_all_plugins():

  1214.             self.projectLoadingFinished()

  1215.             self.fCurrentlyRemovingAllPlugins = False

  1216.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1217.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_jackAppAdd(self):

  1221.         data = self.showAddJackAppDialog()

  1222. 

  1223.         if data is None:

  1224.             return

  1225. 

  1226.         filename, name, label = data

  1227. 

  1228.         if not filename:

  1229.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1230.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1231.             return

  1232. 

  1233.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1234.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1235.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1236. 

  1237.     # --------------------------------------------------------------------------------------------------------

  1238.     # Plugins (macros)

  1239. 

  1240.     @pyqtSlot()

  1241.     def slot_pluginsEnable(self):

  1242.         if not self.host.is_engine_running():

  1243.             return

  1244. 

  1245.         for pitem in self.fPluginList:

  1246.             if pitem is None:

  1247.                 break

  1248. 

  1249.             pitem.getWidget().setActive(True, True, True)

  1250. 

  1251.     @pyqtSlot()

  1252.     def slot_pluginsDisable(self):

  1253.         if not self.host.is_engine_running():

  1254.             return

  1255. 

  1256.         for pitem in self.fPluginList:

  1257.             if pitem is None:

  1258.                 break

  1259. 

  1260.             pitem.getWidget().setActive(False, True, True)

  1261. 

  1262.     @pyqtSlot()

  1263.     def slot_pluginsVolume100(self):

  1264.         if not self.host.is_engine_running():

  1265.             return

  1266. 

  1267.         for pitem in self.fPluginList:

  1268.             if pitem is None:

  1269.                 break

  1270. 

  1271.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1272. 

  1273.     @pyqtSlot()

  1274.     def slot_pluginsMute(self):

  1275.         if not self.host.is_engine_running():

  1276.             return

  1277. 

  1278.         for pitem in self.fPluginList:

  1279.             if pitem is None:

  1280.                 break

  1281. 

  1282.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1283. 

  1284.     @pyqtSlot()

  1285.     def slot_pluginsWet100(self):

  1286.         if not self.host.is_engine_running():

  1287.             return

  1288. 

  1289.         for pitem in self.fPluginList:

  1290.             if pitem is None:

  1291.                 break

  1292. 

  1293.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1294. 

  1295.     @pyqtSlot()

  1296.     def slot_pluginsBypass(self):

  1297.         if not self.host.is_engine_running():

  1298.             return

  1299. 

  1300.         for pitem in self.fPluginList:

  1301.             if pitem is None:

  1302.                 break

  1303. 

  1304.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1305. 

  1306.     @pyqtSlot()

  1307.     def slot_pluginsCenter(self):

  1308.         if not self.host.is_engine_running():

  1309.             return

  1310. 

  1311.         for pitem in self.fPluginList:

  1312.             if pitem is None:

  1313.                 break

  1314. 

  1315.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1316.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1317.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1318. 

  1319.     @pyqtSlot()

  1320.     def slot_pluginsCompact(self):

  1321.         for pitem in self.fPluginList:

  1322.             if pitem is None:

  1323.                 break

  1324.             pitem.compact()

  1325. 

  1326.     @pyqtSlot()

  1327.     def slot_pluginsExpand(self):

  1328.         for pitem in self.fPluginList:

  1329.             if pitem is None:

  1330.                 break

  1331.             pitem.expand()

  1332. 

  1333.     # --------------------------------------------------------------------------------------------------------

  1334.     # Plugins (host callbacks)

  1335. 

  1336.     @pyqtSlot(int, str)

  1337.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1338.         if pluginId != self.fPluginCount:

  1339.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1340.             pitem = self.getPluginItem(pluginId)

  1341.             pitem.recreateWidget()

  1342.             return

  1343. 

  1344.         pitem = self.ui.listWidget.createItem(pluginId)

  1345.         self.fPluginList.append(pitem)

  1346.         self.fPluginCount += 1

  1347. 

  1348.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1349. 

  1350.     @pyqtSlot(int)

  1351.     def slot_handlePluginRemovedCallback(self, pluginId):

  1352.         patchcanvas.handlePluginRemoved(pluginId)

  1353. 

  1354.         if pluginId in self.fSelectedPlugins:

  1355.             self.clearSideStuff()

  1356. 

  1357.         if self.fPluginCount == 0:

  1358.             return

  1359. 

  1360.         pitem = self.getPluginItem(pluginId)

  1361. 

  1362.         self.fPluginCount -= 1

  1363.         self.fPluginList.pop(pluginId)

  1364.         self.ui.listWidget.takeItem(pluginId)

  1365. 

  1366.         if pitem is not None:

  1367.             pitem.close()

  1368.             del pitem

  1369. 

  1370.         if self.fPluginCount == 0:

  1371.             self.ui.act_plugin_remove_all.setEnabled(False)

  1372.             if self.fCurrentlyRemovingAllPlugins:

  1373.                 self.fCurrentlyRemovingAllPlugins = False

  1374.                 self.projectLoadingFinished()

  1375.             return

  1376. 

  1377.         # push all plugins 1 slot back

  1378.         for i in range(pluginId, self.fPluginCount):

  1379.             pitem = self.fPluginList[i]

  1380.             pitem.setPluginId(i)

  1381. 

  1382.         self.ui.act_plugin_remove_all.setEnabled(True)

  1383. 

  1384.     # --------------------------------------------------------------------------------------------------------

  1385.     # Canvas

  1386. 

  1387.     def clearSideStuff(self):

  1388.         if self.fWithCanvas:

  1389.             self.scene.clearSelection()

  1390. 

  1391.         self.fSelectedPlugins = []

  1392. 

  1393.         self.ui.keyboard.allNotesOff(False)

  1394.         self.ui.scrollArea.setEnabled(False)

  1395. 

  1396.         self.fPeaksCleared = True

  1397.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1398.         self.ui.peak_in.displayMeter(2, 0.0, True)

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

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

  1401. 

  1402.     def setupCanvas(self):

  1403.         pOptions = patchcanvas.options_t()

  1404.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1405.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1406.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1407.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1408.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1409.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1410. 

  1411.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1412.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1413.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1414.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1415.         else:

  1416.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1417. 

  1418.         pFeatures = patchcanvas.features_t()

  1419.         pFeatures.group_info   = False

  1420.         pFeatures.group_rename = False

  1421.         pFeatures.port_info    = False

  1422.         pFeatures.port_rename  = False

  1423.         pFeatures.handle_group_pos = False

  1424. 

  1425.         patchcanvas.setOptions(pOptions)

  1426.         patchcanvas.setFeatures(pFeatures)

  1427.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1428. 

  1429.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1430. 

  1431.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1432.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1433.             self.fCanvasHeight = int(tryCanvasSize[1])

  1434.         else:

  1435.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1436.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1437. 

  1438.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1439.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1440.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1441. 

  1442.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1443.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1444. 

  1445.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1446.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1447. 

  1448.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1449.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1450.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1451. 

  1452.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1453.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1454. 

  1455.         else:

  1456.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1457. 

  1458.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1459.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1460.         else:

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

  1462. 

  1463.     def updateCanvasInitialPos(self):

  1464.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1465.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1466.         patchcanvas.setInitialPos(x, y)

  1467. 

  1468.     def updateMiniCanvasLater(self):

  1469.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1470. 

  1471.     # --------------------------------------------------------------------------------------------------------

  1472.     # Canvas (menu actions)

  1473. 

  1474.     @pyqtSlot()

  1475.     def slot_canvasShowInternal(self):

  1476.         self.fExternalPatchbay = False

  1477.         self.ui.act_canvas_show_internal.blockSignals(True)

  1478.         self.ui.act_canvas_show_external.blockSignals(True)

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

  1480.         self.ui.act_canvas_show_external.setChecked(False)

  1481.         self.ui.act_canvas_show_internal.blockSignals(False)

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

  1483.         self.slot_canvasRefresh()

  1484. 

  1485.     @pyqtSlot()

  1486.     def slot_canvasShowExternal(self):

  1487.         self.fExternalPatchbay = True

  1488.         self.ui.act_canvas_show_internal.blockSignals(True)

  1489.         self.ui.act_canvas_show_external.blockSignals(True)

  1490.         self.ui.act_canvas_show_internal.setChecked(False)

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

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

  1493.         self.ui.act_canvas_show_external.blockSignals(False)

  1494.         self.slot_canvasRefresh()

  1495. 

  1496.     @pyqtSlot()

  1497.     def slot_canvasArrange(self):

  1498.         patchcanvas.arrange()

  1499. 

  1500.     @pyqtSlot()

  1501.     def slot_canvasRefresh(self):

  1502.         patchcanvas.clear()

  1503. 

  1504.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1505.             return

  1506. 

  1507.         if self.host.is_engine_running():

  1508.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1509. 

  1510.         self.updateMiniCanvasLater()

  1511. 

  1512.     @pyqtSlot()

  1513.     def slot_canvasZoomFit(self):

  1514.         self.scene.zoom_fit()

  1515. 

  1516.     @pyqtSlot()

  1517.     def slot_canvasZoomIn(self):

  1518.         self.scene.zoom_in()

  1519. 

  1520.     @pyqtSlot()

  1521.     def slot_canvasZoomOut(self):

  1522.         self.scene.zoom_out()

  1523. 

  1524.     @pyqtSlot()

  1525.     def slot_canvasZoomReset(self):

  1526.         self.scene.zoom_reset()

  1527. 

  1528.     @pyqtSlot()

  1529.     def slot_canvasSaveImage(self):

  1530.         if self.fProjectFilename:

  1531.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1532.         else:

  1533.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1534. 

  1535.         fileDialog = QFileDialog(self)

  1536.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1537.         fileDialog.setDirectory(dir)

  1538.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1539.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1540.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1541.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1542.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1543. 

  1544.         ok = fileDialog.exec_()

  1545. 

  1546.         if not ok:

  1547.             return

  1548. 

  1549.         newPath = fileDialog.selectedFiles()

  1550. 

  1551.         if len(newPath) != 1:

  1552.             return

  1553. 

  1554.         newPath = newPath[0]

  1555. 

  1556.         if QT_VERSION >= 0x50900:

  1557.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1558.                 imgFormat = b"JPG"

  1559.             else:

  1560.                 imgFormat = b"PNG"

  1561.         else:

  1562.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1563.                 imgFormat = b"JPG"

  1564.             else:

  1565.                 imgFormat = b"PNG"

  1566. 

  1567.         sender = self.sender()

  1568.         if sender == self.ui.act_canvas_save_image_2x:

  1569.             zoom = 2.0

  1570.         elif sender == self.ui.act_canvas_save_image_4x:

  1571.             zoom = 4.0

  1572.         else:

  1573.             zoom = 1.0

  1574. 

  1575.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1576.         painter = QPainter(image)

  1577.         painter.save()

  1578.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1579.         self.scene.clearSelection()

  1580.         self.scene.render(painter)

  1581.         painter.restore()

  1582.         del painter

  1583. 

  1584.         iw = QImageWriter(newPath)

  1585.         iw.setFormat(imgFormat)

  1586.         iw.setCompression(-1)

  1587. 

  1588.         if QT_VERSION >= 0x50500:

  1589.             iw.setOptimizedWrite(True)

  1590. 

  1591.         iw.write(image)

  1592. 

  1593.     # --------------------------------------------------------------------------------------------------------

  1594.     # Canvas (canvas callbacks)

  1595. 

  1596.     @pyqtSlot()

  1597.     def slot_canvasSelectionChanged(self):

  1598.         self.updateMiniCanvasLater()

  1599. 

  1600.     @pyqtSlot(float)

  1601.     def slot_canvasScaleChanged(self, scale):

  1602.         self.ui.miniCanvasPreview.setViewScale(scale)

  1603. 

  1604.     @pyqtSlot(list)

  1605.     def slot_canvasPluginSelected(self, pluginList):

  1606.         self.ui.keyboard.allNotesOff(False)

  1607.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1608.         self.fSelectedPlugins = pluginList

  1609. 

  1610.     # --------------------------------------------------------------------------------------------------------

  1611.     # Canvas (host callbacks)

  1612. 

  1613.     @pyqtSlot(int, int, int, str)

  1614.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1615.         pcSplit = patchcanvas.SPLIT_UNDEF

  1616.         pcIcon  = patchcanvas.ICON_APPLICATION

  1617. 

  1618.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1619.             pcIcon = patchcanvas.ICON_PLUGIN

  1620.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1621.             pcIcon = patchcanvas.ICON_HARDWARE

  1622.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1623.             pass

  1624.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1625.             pcIcon = patchcanvas.ICON_DISTRHO

  1626.         elif clientIcon == PATCHBAY_ICON_FILE:

  1627.             pcIcon = patchcanvas.ICON_FILE

  1628. 

  1629.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1630. 

  1631.         self.updateMiniCanvasLater()

  1632. 

  1633.         if pluginId < 0:

  1634.             return

  1635.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1636.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1637.             return

  1638. 

  1639.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1640.             hasCustomUI = False

  1641.             hasInlineDisplay = False

  1642.         else:

  1643.             hints = self.host.get_plugin_info(pluginId)['hints']

  1644.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1645.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1646. 

  1647.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1648. 

  1649.     @pyqtSlot(int)

  1650.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1651.         patchcanvas.removeGroup(clientId)

  1652.         self.updateMiniCanvasLater()

  1653. 

  1654.     @pyqtSlot(int, str)

  1655.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1656.         patchcanvas.renameGroup(clientId, newClientName)

  1657.         self.updateMiniCanvasLater()

  1658. 

  1659.     @pyqtSlot(int, int, int)

  1660.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1661.         pcIcon = patchcanvas.ICON_APPLICATION

  1662. 

  1663.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1664.             pcIcon = patchcanvas.ICON_PLUGIN

  1665.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1666.             pcIcon = patchcanvas.ICON_HARDWARE

  1667.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1668.             pass

  1669.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1670.             pcIcon = patchcanvas.ICON_DISTRHO

  1671.         elif clientIcon == PATCHBAY_ICON_FILE:

  1672.             pcIcon = patchcanvas.ICON_FILE

  1673. 

  1674.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1675.         self.updateMiniCanvasLater()

  1676. 

  1677.         if pluginId < 0:

  1678.             return

  1679.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1680.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1681.             return

  1682. 

  1683.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1684.             hasCustomUI = False

  1685.             hasInlineDisplay = False

  1686.         else:

  1687.             hints = self.host.get_plugin_info(pluginId)['hints']

  1688.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1689.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1690. 

  1691.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1692. 

  1693.     @pyqtSlot(int, int, int, int, int)

  1694.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1695.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1696.         self.updateMiniCanvasLater()

  1697. 

  1698.     @pyqtSlot(int, int, int, int, str)

  1699.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1700.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1701.             portMode = patchcanvas.PORT_MODE_INPUT

  1702.         else:

  1703.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1704. 

  1705.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1706.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1707.             isAlternate = False

  1708.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1709.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1710.             isAlternate = False

  1711.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1712.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1713.             isAlternate = False

  1714.         else:

  1715.             portType    = patchcanvas.PORT_TYPE_NULL

  1716.             isAlternate = False

  1717. 

  1718.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1719.         self.updateMiniCanvasLater()

  1720. 

  1721.     @pyqtSlot(int, int)

  1722.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1723.         patchcanvas.removePort(groupId, portId)

  1724.         self.updateMiniCanvasLater()

  1725. 

  1726.     @pyqtSlot(int, int, int, int, str)

  1727.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1728.         patchcanvas.renamePort(groupId, portId, newPortName)

  1729.         self.updateMiniCanvasLater()

  1730. 

  1731.     @pyqtSlot(int, int, int, str)

  1732.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1733.         # TODO

  1734.         pass

  1735. 

  1736.     @pyqtSlot(int, int)

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

  1738.         # TODO

  1739.         pass

  1740. 

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

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

  1743.         # TODO

  1744.         pass

  1745. 

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

  1747.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1748.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1749.         self.updateMiniCanvasLater()

  1750. 

  1751.     @pyqtSlot(int, int, int)

  1752.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1753.         patchcanvas.disconnectPorts(connectionId)

  1754.         self.updateMiniCanvasLater()

  1755. 

  1756.     # --------------------------------------------------------------------------------------------------------

  1757.     # Settings

  1758. 

  1759.     def saveSettings(self):

  1760.         settings = QSafeSettings()

  1761. 

  1762.         settings.setValue("Geometry", self.saveGeometry())

  1763.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1764. 

  1765.         if not self.host.isControl:

  1766.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1767. 

  1768.         diskFolders = []

  1769. 

  1770.         for i in range(self.ui.cb_disk.count()):

  1771.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1772. 

  1773.         settings.setValue("DiskFolders", diskFolders)

  1774.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1775. 

  1776.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1777.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1778.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1779.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1780. 

  1781.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1782.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1783. 

  1784.         return settings

  1785. 

  1786.     def loadSettings(self, firstTime):

  1787.         settings = QSafeSettings()

  1788. 

  1789.         if firstTime:

  1790.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1791.             if not geometry.isNull():

  1792.                 self.restoreGeometry(geometry)

  1793. 

  1794.             showToolbar = settings.value("ShowToolbar", True, bool)

  1795.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1796.             self.ui.toolBar.setEnabled(showToolbar)

  1797.             self.ui.toolBar.setVisible(showToolbar)

  1798. 

  1799.             #if settings.contains("SplitterState"):

  1800.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1801.             #else:

  1802.                 #self.ui.splitter.setSizes([210, 99999])

  1803. 

  1804.             showSidePanel = settings.value("ShowSidePanel", True, bool) and not self.host.isControl

  1805.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1806.             self.slot_showSidePanel(showSidePanel)

  1807. 

  1808.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1809. 

  1810.             self.ui.cb_disk.setItemData(0, HOME)

  1811. 

  1812.             for i in range(len(diskFolders)):

  1813.                 if i == 0: continue

  1814.                 folder = diskFolders[i]

  1815.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1816. 

  1817.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1818.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1819. 

  1820.             showMeters = settings.value("ShowMeters", True, bool)

  1821.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1822.             self.ui.peak_in.setVisible(showMeters)

  1823.             self.ui.peak_out.setVisible(showMeters)

  1824. 

  1825.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1826.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1827.             self.ui.scrollArea.setVisible(showKeyboard)

  1828. 

  1829.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1830.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1831. 

  1832.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1833. 

  1834.         # TODO - complete this

  1835. 

  1836.         self.fSavedSettings = {

  1837.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1838.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1839.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1840.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1841.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1842.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1843.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1844.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1845.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1846.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1847.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1848.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1849.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1850.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1851.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1852.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1853.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1854.         }

  1855. 

  1856.         if not self.host.isControl:

  1857.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1858.         else:

  1859.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1860. 

  1861.         settings2 = QSafeSettings("falkTX", "Carla2")

  1862. 

  1863.         if self.host.experimental:

  1864.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1865.             self.ui.act_plugin_add_jack.setVisible(visible)

  1866.         else:

  1867.             self.ui.act_plugin_add_jack.setVisible(False)

  1868. 

  1869.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1870. 

  1871.         setEngineSettings(self.host)

  1872.         self.restartTimersIfNeeded()

  1873. 

  1874.         return settings

  1875. 

  1876.     # --------------------------------------------------------------------------------------------------------

  1877.     # Settings (helpers)

  1878. 

  1879.     def enableTransport(self, enabled):

  1880.         self.ui.group_transport_controls.setEnabled(enabled)

  1881.         self.ui.group_transport_settings.setEnabled(enabled)

  1882. 

  1883.     @pyqtSlot()

  1884.     def slot_restoreCanvasScrollbarValues(self):

  1885.         settings = QSafeSettings()

  1886.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1887.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1888.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  1889.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  1890. 

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

  1892.     # Settings (menu actions)

  1893. 

  1894.     @pyqtSlot(bool)

  1895.     def slot_showSidePanel(self, yesNo):

  1896.         self.ui.dockWidget.setEnabled(yesNo)

  1897.         self.ui.dockWidget.setVisible(yesNo)

  1898. 

  1899.     @pyqtSlot(bool)

  1900.     def slot_showToolbar(self, yesNo):

  1901.         self.ui.toolBar.setEnabled(yesNo)

  1902.         self.ui.toolBar.setVisible(yesNo)

  1903. 

  1904.     @pyqtSlot(bool)

  1905.     def slot_showCanvasMeters(self, yesNo):

  1906.         self.ui.peak_in.setVisible(yesNo)

  1907.         self.ui.peak_out.setVisible(yesNo)

  1908.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1909. 

  1910.     @pyqtSlot(bool)

  1911.     def slot_showCanvasKeyboard(self, yesNo):

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

  1913.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1914. 

  1915.     @pyqtSlot()

  1916.     def slot_configureCarla(self):

  1917.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1918.         if not dialog.exec_():

  1919.             return

  1920. 

  1921.         self.loadSettings(False)

  1922. 

  1923.         patchcanvas.clear()

  1924. 

  1925.         self.setupCanvas()

  1926.         self.slot_miniCanvasCheckAll()

  1927. 

  1928.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1929.             pass

  1930.         elif self.host.is_engine_running():

  1931.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1932. 

  1933.     # --------------------------------------------------------------------------------------------------------

  1934.     # About (menu actions)

  1935. 

  1936.     @pyqtSlot()

  1937.     def slot_aboutCarla(self):

  1938.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1939. 

  1940.     @pyqtSlot()

  1941.     def slot_aboutJuce(self):

  1942.         JuceAboutW(self.fParentOrSelf).exec_()

  1943. 

  1944.     @pyqtSlot()

  1945.     def slot_aboutQt(self):

  1946.         QApplication.instance().aboutQt()

  1947. 

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

  1949.     # Disk (menu actions)

  1950. 

  1951.     @pyqtSlot(int)

  1952.     def slot_diskFolderChanged(self, index):

  1953.         if index < 0:

  1954.             return

  1955.         elif index == 0:

  1956.             filename = HOME

  1957.             self.ui.b_disk_remove.setEnabled(False)

  1958.         else:

  1959.             filename = self.ui.cb_disk.itemData(index)

  1960.             self.ui.b_disk_remove.setEnabled(True)

  1961. 

  1962.         self.fDirModel.setRootPath(filename)

  1963.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1964. 

  1965.     @pyqtSlot()

  1966.     def slot_diskFolderAdd(self):

  1967.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1968. 

  1969.         if newPath:

  1970.             if newPath[-1] == os.sep:

  1971.                 newPath = newPath[:-1]

  1972.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1973.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1974.             self.ui.b_disk_remove.setEnabled(True)

  1975. 

  1976.     @pyqtSlot()

  1977.     def slot_diskFolderRemove(self):

  1978.         index = self.ui.cb_disk.currentIndex()

  1979. 

  1980.         if index <= 0:

  1981.             return

  1982. 

  1983.         self.ui.cb_disk.removeItem(index)

  1984. 

  1985.         if self.ui.cb_disk.currentIndex() == 0:

  1986.             self.ui.b_disk_remove.setEnabled(False)

  1987. 

  1988.     @pyqtSlot(QModelIndex)

  1989.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1990.         filename = self.fDirModel.filePath(modelIndex)

  1991. 

  1992.         if not self.ui.listWidget.isDragUrlValid(filename):

  1993.             return

  1994. 

  1995.         if not self.host.load_file(filename):

  1996.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1997.                              self.tr("Failed to load file"),

  1998.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1999. 

  2000.     # --------------------------------------------------------------------------------------------------------

  2001.     # Transport

  2002. 

  2003.     def refreshTransport(self, forced = False):

  2004.         if not self.ui.l_transport_time.isVisible():

  2005.             return

  2006.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2007.             return

  2008. 

  2009.         timeInfo = self.host.get_transport_info()

  2010.         playing  = timeInfo['playing']

  2011.         frame    = timeInfo['frame']

  2012.         bpm      = timeInfo['bpm']

  2013. 

  2014.         if playing != self.fLastTransportState or forced:

  2015.             if playing:

  2016.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  2017.                 self.ui.b_transport_play.setChecked(True)

  2018.                 self.ui.b_transport_play.setIcon(icon)

  2019.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2020.             else:

  2021.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  2022.                 self.ui.b_transport_play.setChecked(False)

  2023.                 self.ui.b_transport_play.setIcon(icon)

  2024.                 #self.ui.b_play.setText(self.tr("&Play"))

  2025. 

  2026.             self.fLastTransportState = playing

  2027. 

  2028.         if frame != self.fLastTransportFrame or forced:

  2029.             self.fLastTransportFrame = frame

  2030. 

  2031.             time = frame / self.fSampleRate

  2032.             secs =  time % 60

  2033.             mins = (time / 60) % 60

  2034.             hrs  = (time / 3600) % 60

  2035.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2036. 

  2037.             frame1 =  frame % 1000

  2038.             frame2 = (frame / 1000) % 1000

  2039.             frame3 = (frame / 1000000) % 1000

  2040.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2041. 

  2042.             bar  = timeInfo['bar']

  2043.             beat = timeInfo['beat']

  2044.             tick = timeInfo['tick']

  2045.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2046. 

  2047.         if bpm != self.fLastTransportBPM or forced:

  2048.             self.fLastTransportBPM = bpm

  2049. 

  2050.             if bpm > 0.0:

  2051.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2052.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2053.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2054.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2055.             else:

  2056.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2057. 

  2058.     # --------------------------------------------------------------------------------------------------------

  2059.     # Transport (menu actions)

  2060. 

  2061.     @pyqtSlot(bool)

  2062.     def slot_transportPlayPause(self, toggled):

  2063.         if self.host.isPlugin or not self.host.is_engine_running():

  2064.             return

  2065. 

  2066.         if toggled:

  2067.             self.host.transport_play()

  2068.         else:

  2069.             self.host.transport_pause()

  2070. 

  2071.         self.refreshTransport()

  2072. 

  2073.     @pyqtSlot()

  2074.     def slot_transportStop(self):

  2075.         if self.host.isPlugin or not self.host.is_engine_running():

  2076.             return

  2077. 

  2078.         self.host.transport_pause()

  2079.         self.host.transport_relocate(0)

  2080. 

  2081.         self.refreshTransport()

  2082. 

  2083.     @pyqtSlot()

  2084.     def slot_transportBackwards(self):

  2085.         if self.host.isPlugin or not self.host.is_engine_running():

  2086.             return

  2087. 

  2088.         newFrame = self.host.get_current_transport_frame() - 100000

  2089. 

  2090.         if newFrame < 0:

  2091.             newFrame = 0

  2092. 

  2093.         self.host.transport_relocate(newFrame)

  2094. 

  2095.     @pyqtSlot(float)

  2096.     def slot_transportBpmChanged(self, newValue):

  2097.         self.host.transport_bpm(newValue)

  2098. 

  2099.     @pyqtSlot()

  2100.     def slot_transportForwards(self):

  2101.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2102.             return

  2103. 

  2104.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2105.         self.host.transport_relocate(newFrame)

  2106. 

  2107.     @pyqtSlot(bool)

  2108.     def slot_transportJackEnabled(self, clicked):

  2109.         if not self.host.is_engine_running():

  2110.             return

  2111.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2112.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2113.                                     self.host.transportMode,

  2114.                                     self.host.transportExtra)

  2115. 

  2116.     @pyqtSlot(bool)

  2117.     def slot_transportLinkEnabled(self, clicked):

  2118.         if not self.host.is_engine_running():

  2119.             return

  2120.         extra = ":link:" if clicked else ""

  2121.         self.host.transportExtra = extra

  2122.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2123.                                     self.host.transportMode,

  2124.                                     self.host.transportExtra)

  2125. 

  2126.     # --------------------------------------------------------------------------------------------------------

  2127.     # Other

  2128. 

  2129.     @pyqtSlot(bool)

  2130.     def slot_xrunClear(self):

  2131.         self.host.clear_engine_xruns()

  2132. 

  2133.     # --------------------------------------------------------------------------------------------------------

  2134.     # Canvas scrollbars

  2135. 

  2136.     @pyqtSlot(int)

  2137.     def slot_horizontalScrollBarChanged(self, value):

  2138.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2139.         if maximum == 0:

  2140.             xp = 0

  2141.         else:

  2142.             xp = float(value) / maximum

  2143.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2144.         self.updateCanvasInitialPos()

  2145. 

  2146.     @pyqtSlot(int)

  2147.     def slot_verticalScrollBarChanged(self, value):

  2148.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2149.         if maximum == 0:

  2150.             yp = 0

  2151.         else:

  2152.             yp = float(value) / maximum

  2153.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2154.         self.updateCanvasInitialPos()

  2155. 

  2156.     # --------------------------------------------------------------------------------------------------------

  2157.     # Canvas keyboard

  2158. 

  2159.     @pyqtSlot(int)

  2160.     def slot_noteOn(self, note):

  2161.         for pluginId in self.fSelectedPlugins:

  2162.             self.host.send_midi_note(pluginId, 0, note, 100)

  2163. 

  2164.             pedit = self.getPluginEditDialog(pluginId)

  2165.             pedit.noteOn(0, note, 100)

  2166. 

  2167.     @pyqtSlot(int)

  2168.     def slot_noteOff(self, note):

  2169.         for pluginId in self.fSelectedPlugins:

  2170.             self.host.send_midi_note(pluginId, 0, note, 0)

  2171. 

  2172.             pedit = self.getPluginEditDialog(pluginId)

  2173.             pedit.noteOff(0, note)

  2174. 

  2175.     # --------------------------------------------------------------------------------------------------------

  2176.     # Canvas keyboard (host callbacks)

  2177. 

  2178.     @pyqtSlot(int, int, int, int)

  2179.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2180.         if pluginId in self.fSelectedPlugins:

  2181.             self.ui.keyboard.sendNoteOn(note, False)

  2182. 

  2183.     @pyqtSlot(int, int, int)

  2184.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2185.         if pluginId in self.fSelectedPlugins:

  2186.             self.ui.keyboard.sendNoteOff(note, False)

  2187. 

  2188.     # --------------------------------------------------------------------------------------------------------

  2189. 

  2190.     @pyqtSlot(int)

  2191.     def slot_handleUpdateCallback(self, pluginId):

  2192.         pitem = self.getPluginItem(pluginId)

  2193. 

  2194.         if pitem is None:

  2195.             return

  2196. 

  2197.         wasCompacted = pitem.isCompacted()

  2198.         isCompacted  = wasCompacted

  2199. 

  2200.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2201.         if not check:

  2202.             return

  2203.         isCompacted = bool(check == "true")

  2204. 

  2205.         if wasCompacted == isCompacted:

  2206.             return

  2207. 

  2208.         pitem.recreateWidget(True)

  2209. 

  2210.     # --------------------------------------------------------------------------------------------------------

  2211.     # MiniCanvas stuff

  2212. 

  2213.     @pyqtSlot()

  2214.     def slot_miniCanvasCheckAll(self):

  2215.         self.slot_miniCanvasCheckSize()

  2216.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2217.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2218. 

  2219.     @pyqtSlot()

  2220.     def slot_miniCanvasCheckSize(self):

  2221.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2222.             return

  2223. 

  2224.         currentIndex = self.ui.tabWidget.currentIndex()

  2225. 

  2226.         if currentIndex == 1:

  2227.             width  = self.ui.graphicsView.width()

  2228.             height = self.ui.graphicsView.height()

  2229.         else:

  2230.             self.ui.tabWidget.blockSignals(True)

  2231.             self.ui.tabWidget.setCurrentIndex(1)

  2232.             width  = self.ui.graphicsView.width()

  2233.             height = self.ui.graphicsView.height()

  2234.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2235.             self.ui.tabWidget.blockSignals(False)

  2236. 

  2237.         self.scene.updateLimits()

  2238. 

  2239.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2240. 

  2241.     @pyqtSlot(float, float)

  2242.     def slot_miniCanvasMoved(self, xp, yp):

  2243.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2244.         vsb = self.ui.graphicsView.verticalScrollBar()

  2245.         hsb.setValue(xp * hsb.maximum())

  2246.         vsb.setValue(yp * vsb.maximum())

  2247.         self.updateCanvasInitialPos()

  2248. 

  2249.     # --------------------------------------------------------------------------------------------------------

  2250.     # Logs autoscroll, save and clear

  2251. 

  2252.     @pyqtSlot(int)

  2253.     def slot_toggleLogAutoscroll(self, checkState):

  2254.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2255.         if self.autoscrollOnNewLog:

  2256.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2257. 

  2258.     @pyqtSlot(int)

  2259.     def slot_logSliderMoved(self, slider_pos):

  2260.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2261.             self.lastLogSliderPos = slider_pos

  2262.         else:

  2263.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2264. 

  2265.     @pyqtSlot()

  2266.     def slot_logButtonsState(self, enabled=True):

  2267.         self.ui.logs_clear.setEnabled(enabled)

  2268.         self.ui.logs_save.setEnabled(enabled)

  2269. 

  2270.     @pyqtSlot()

  2271.     def slot_logSave(self):

  2272.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2273.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2274. 

  2275.         if not filename:

  2276.             return

  2277. 

  2278.         try:

  2279.             with open(filename, "w") as logfile:

  2280.                 logfile.write(self.ui.text_logs.toPlainText())

  2281.                 logfile.close()

  2282.         except:

  2283.             return

  2284. 

  2285.     @pyqtSlot()

  2286.     def slot_logClear(self):

  2287.         self.ui.text_logs.clear()

  2288.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2289.         self.slot_logButtonsState(False)

  2290. 

  2291.     # --------------------------------------------------------------------------------------------------------

  2292.     # Timers

  2293. 

  2294.     def startTimers(self):

  2295.         if self.fIdleTimerFast == 0:

  2296.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2297. 

  2298.         if self.fIdleTimerSlow == 0:

  2299.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2300. 

  2301.     def restartTimersIfNeeded(self):

  2302.         if self.fIdleTimerFast != 0:

  2303.             self.killTimer(self.fIdleTimerFast)

  2304.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2305. 

  2306.         if self.fIdleTimerSlow != 0:

  2307.             self.killTimer(self.fIdleTimerSlow)

  2308.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2309. 

  2310.     def killTimers(self):

  2311.         if self.fIdleTimerFast != 0:

  2312.             self.killTimer(self.fIdleTimerFast)

  2313.             self.fIdleTimerFast = 0

  2314. 

  2315.         if self.fIdleTimerSlow != 0:

  2316.             self.killTimer(self.fIdleTimerSlow)

  2317.             self.fIdleTimerSlow = 0

  2318. 

  2319.     # --------------------------------------------------------------------------------------------------------

  2320.     # Misc

  2321. 

  2322.     @pyqtSlot(int)

  2323.     def slot_tabChanged(self, index):

  2324.         if index != 1:

  2325.             return

  2326. 

  2327.         self.ui.graphicsView.setFocus()

  2328. 

  2329.     @pyqtSlot(int)

  2330.     def slot_handleReloadAllCallback(self, pluginId):

  2331.         if pluginId >= self.fPluginCount:

  2332.             return

  2333. 

  2334.         pitem = self.fPluginList[pluginId]

  2335.         if pitem is None:

  2336.             return

  2337. 

  2338.         pitem.recreateWidget()

  2339. 

  2340.     # --------------------------------------------------------------------------------------------------------

  2341. 

  2342.     @pyqtSlot(int, int, str)

  2343.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2344.         if opcode == NSM_CALLBACK_INIT:

  2345.             return

  2346. 

  2347.         # Error

  2348.         elif opcode == NSM_CALLBACK_ERROR:

  2349.             pass

  2350. 

  2351.         # Reply

  2352.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2353.             self.fFirstEngineInit    = False

  2354.             self.fSessionManagerName = valueStr

  2355.             self.setProperWindowTitle()

  2356. 

  2357.         # Open

  2358.         elif opcode == NSM_CALLBACK_OPEN:

  2359.             self.fClientName      = os.path.basename(valueStr)

  2360.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2361.             self.setProperWindowTitle()

  2362. 

  2363.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2364.             self.slot_engineStop(True)

  2365.             return

  2366. 

  2367.         # Save

  2368.         elif opcode == NSM_CALLBACK_SAVE:

  2369.             self.saveProjectNow()

  2370. 

  2371.         # Session is Loaded

  2372.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2373.             pass

  2374. 

  2375.         # Show Optional Gui

  2376.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2377.             self.show()

  2378. 

  2379.         # Hide Optional Gui

  2380.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2381.             self.hide()

  2382. 

  2383.         self.host.nsm_ready(opcode)

  2384. 

  2385.     # --------------------------------------------------------------------------------------------------------

  2386. 

  2387.     def fixLogText(self, text):

  2388.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2389. 

  2390.     @pyqtSlot(int, int, int, int, float, str)

  2391.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2392.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2393. 

  2394.     @pyqtSlot(str)

  2395.     def slot_handleInfoCallback(self, info):

  2396.         QMessageBox.information(self, "Information", info)

  2397. 

  2398.     @pyqtSlot(str)

  2399.     def slot_handleErrorCallback(self, error):

  2400.         QMessageBox.critical(self, "Error", error)

  2401. 

  2402.     @pyqtSlot()

  2403.     def slot_handleQuitCallback(self):

  2404.         self.fIsProjectLoading = False

  2405.         self.killTimers()

  2406.         self.removeAllPlugins()

  2407.         self.projectLoadingFinished()

  2408. 

  2409.     @pyqtSlot(int)

  2410.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2411.         # FIXME

  2412.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2413.             patchcanvas.redrawPluginGroup(pluginId)

  2414. 

  2415.     # --------------------------------------------------------------------------------------------------------

  2416. 

  2417.     @pyqtSlot()

  2418.     def slot_handleSIGUSR1(self):

  2419.         print("Got SIGUSR1 -> Saving project now")

  2420.         self.slot_fileSave()

  2421. 

  2422.     @pyqtSlot()

  2423.     def slot_handleSIGTERM(self):

  2424.         print("Got SIGTERM -> Closing now")

  2425.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2426.         self.slot_engineStop(True)

  2427. 

  2428.     # --------------------------------------------------------------------------------------------------------

  2429.     # Internal stuff

  2430. 

  2431.     def getExtraPtr(self, plugin):

  2432.         ptype = plugin['type']

  2433. 

  2434.         if ptype == PLUGIN_LADSPA:

  2435.             uniqueId = plugin['uniqueId']

  2436. 

  2437.             self.maybeLoadRDFs()

  2438. 

  2439.             for rdfItem in self.fLadspaRdfList:

  2440.                 if rdfItem.UniqueID == uniqueId:

  2441.                     return pointer(rdfItem)

  2442. 

  2443.         elif ptype == PLUGIN_SF2:

  2444.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2445.                 return self._true

  2446. 

  2447.         return None

  2448. 

  2449.     def maybeLoadRDFs(self):

  2450.         if not self.fLadspaRdfNeedsUpdate:

  2451.             return

  2452. 

  2453.         self.fLadspaRdfNeedsUpdate = False

  2454.         self.fLadspaRdfList = []

  2455. 

  2456.         if not haveLRDF:

  2457.             return

  2458. 

  2459.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2460.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2461. 

  2462.         if os.path.exists(frLadspaFile):

  2463.             frLadspa = open(frLadspaFile, 'r')

  2464. 

  2465.             try:

  2466.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2467.             except:

  2468.                 pass

  2469. 

  2470.             frLadspa.close()

  2471. 

  2472.     # --------------------------------------------------------------------------------------------------------

  2473. 

  2474.     def getPluginCount(self):

  2475.         return self.fPluginCount

  2476. 

  2477.     def getPluginItem(self, pluginId):

  2478.         if pluginId >= self.fPluginCount:

  2479.             return None

  2480. 

  2481.         pitem = self.fPluginList[pluginId]

  2482.         if pitem is None:

  2483.             return None

  2484.         #if False:

  2485.             #return CarlaRackItem(self, 0, False)

  2486. 

  2487.         return pitem

  2488. 

  2489.     def getPluginEditDialog(self, pluginId):

  2490.         if pluginId >= self.fPluginCount:

  2491.             return None

  2492. 

  2493.         pitem = self.fPluginList[pluginId]

  2494.         if pitem is None:

  2495.             return None

  2496.         if False:

  2497.             return PluginEdit(self, self.host, 0)

  2498. 

  2499.         return pitem.getEditDialog()

  2500. 

  2501.     def getPluginSlotWidget(self, pluginId):

  2502.         if pluginId >= self.fPluginCount:

  2503.             return None

  2504. 

  2505.         pitem = self.fPluginList[pluginId]

  2506.         if pitem is None:

  2507.             return None

  2508.         #if False:

  2509.             #return AbstractPluginSlot()

  2510. 

  2511.         return pitem.getWidget()

  2512. 

  2513.     # --------------------------------------------------------------------------------------------------------

  2514. 

  2515.     def waitForPendingEvents(self):

  2516.         pass

  2517. 

  2518.     # --------------------------------------------------------------------------------------------------------

  2519.     # show/hide event

  2520. 

  2521.     def showEvent(self, event):

  2522.         self.getAndRefreshRuntimeInfo()

  2523.         self.refreshTransport(True)

  2524.         QMainWindow.showEvent(self, event)

  2525. 

  2526.         if QT_VERSION >= 0x50600:

  2527.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2528.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2529. 

  2530.         # set our gui as parent for all plugins UIs

  2531.         if self.host.manageUIs and not self.host.isControl:

  2532.             if MACOS:

  2533.                 nsViewPtr = int(self.winId())

  2534.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2535.             else:

  2536.                 winIdStr = "%x" % int(self.winId())

  2537.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2538. 

  2539.     def hideEvent(self, event):

  2540.         # disable parent

  2541.         if not self.host.isControl:

  2542.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2543. 

  2544.         QMainWindow.hideEvent(self, event)

  2545. 

  2546.     # --------------------------------------------------------------------------------------------------------

  2547.     # resize event

  2548. 

  2549.     def resizeEvent(self, event):

  2550.         QMainWindow.resizeEvent(self, event)

  2551. 

  2552.         if self.fWithCanvas:

  2553.             self.slot_miniCanvasCheckSize()

  2554. 

  2555.     # --------------------------------------------------------------------------------------------------------

  2556.     # timer event

  2557. 

  2558.     def refreshRuntimeInfo(self, load, xruns):

  2559.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2560.         txt2 = "" if (xruns == 1) else "s"

  2561.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2562.         self.ui.pb_dsp_load.setValue(int(load))

  2563. 

  2564.     def getAndRefreshRuntimeInfo(self):

  2565.         if not self.ui.pb_dsp_load.isVisible():

  2566.             return

  2567.         if not self.host.is_engine_running():

  2568.             return

  2569.         info = self.host.get_runtime_engine_info()

  2570.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2571. 

  2572.     def idleFast(self):

  2573.         self.host.engine_idle()

  2574.         self.refreshTransport()

  2575. 

  2576.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2577.             return

  2578. 

  2579.         for pitem in self.fPluginList:

  2580.             if pitem is None:

  2581.                 break

  2582. 

  2583.             pitem.getWidget().idleFast()

  2584. 

  2585.         for pluginId in self.fSelectedPlugins:

  2586.             self.fPeaksCleared = False

  2587.             if self.ui.peak_in.isVisible():

  2588.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2589.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2590.             if self.ui.peak_out.isVisible():

  2591.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2592.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2593.             return

  2594. 

  2595.         if self.fPeaksCleared:

  2596.             return

  2597. 

  2598.         self.fPeaksCleared = True

  2599.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2600.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2601.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2602.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2603. 

  2604.     def idleSlow(self):

  2605.         self.getAndRefreshRuntimeInfo()

  2606. 

  2607.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2608.             return

  2609. 

  2610.         for pitem in self.fPluginList:

  2611.             if pitem is None:

  2612.                 break

  2613. 

  2614.             pitem.getWidget().idleSlow()

  2615. 

  2616.     def timerEvent(self, event):

  2617.         if event.timerId() == self.fIdleTimerFast:

  2618.             self.idleFast()

  2619. 

  2620.         elif event.timerId() == self.fIdleTimerSlow:

  2621.             self.idleSlow()

  2622. 

  2623.         QMainWindow.timerEvent(self, event)

  2624. 

  2625.     # --------------------------------------------------------------------------------------------------------

  2626.     # color/style change event

  2627. 

  2628.     def changeEvent(self, event):

  2629.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2630.             self.updateStyle()

  2631.         QMainWindow.changeEvent(self, event)

  2632. 

  2633.     def updateStyle(self):

  2634.         # Rack padding images setup

  2635.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2636.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2637. 

  2638.         min_value = 0.07

  2639. 

  2640.         if PYQT_VERSION >= 0x50600:

  2641.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2642.         else:

  2643.             value_fix = 1.5

  2644. 

  2645.         rack_pal = self.ui.rack.palette()

  2646.         bg_color = rack_pal.window().color()

  2647.         fg_color = rack_pal.text().color()

  2648.         bg_value = 1.0 - bg_color.blackF()

  2649.         if bg_value != 0.0 and bg_value < min_value:

  2650.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2651.         else:

  2652.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2653. 

  2654.         painter = QPainter()

  2655.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2656. 

  2657.         painter.begin(rack_imgL)

  2658.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2659.         painter.setBrush(pad_color)

  2660.         painter.drawRect(fillRect)

  2661.         painter.end()

  2662.         rack_pixmapL = QPixmap(rack_imgL)

  2663.         self.imgL_palette = QPalette()

  2664.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2665.         self.ui.pad_left.setPalette(self.imgL_palette)

  2666.         self.ui.pad_left.setAutoFillBackground(True)

  2667. 

  2668.         painter.begin(rack_imgR)

  2669.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2670.         painter.setBrush(pad_color)

  2671.         painter.drawRect(fillRect)

  2672.         painter.end()

  2673.         rack_pixmapR = QPixmap(rack_imgR)

  2674.         self.imgR_palette = QPalette()

  2675.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2676.         self.ui.pad_right.setPalette(self.imgR_palette)

  2677.         self.ui.pad_right.setAutoFillBackground(True)

  2678. 

  2679.         # qt's rgba is actually argb, so convert that

  2680.         bg_color_value = bg_color.rgba()

  2681.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2682. 

  2683.         fg_color_value = fg_color.rgba()

  2684.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2685. 

  2686.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2687.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2688. 

  2689.     # --------------------------------------------------------------------------------------------------------

  2690.     # paint event

  2691. 

  2692.     #def paintEvent(self, event):

  2693.         #QMainWindow.paintEvent(self, event)

  2694. 

  2695.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2696.             #return

  2697. 

  2698.         #painter = QPainter(self)

  2699.         #painter.setBrush(QColor(36, 36, 36))

  2700.         #painter.setPen(QColor(62, 62, 62))

  2701.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2702. 

  2703.     # --------------------------------------------------------------------------------------------------------

  2704.     # close event

  2705. 

  2706.     def shouldIgnoreClose(self):

  2707.         if self.host.isControl or self.host.isPlugin:

  2708.             return False

  2709.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2710.             return False

  2711.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2712.             return QMessageBox.question(self, self.tr("Quit"),

  2713.                                               self.tr("Are you sure you want to quit Carla?"),

  2714.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2715.         return False

  2716. 

  2717.     def closeEvent(self, event):

  2718.         if self.shouldIgnoreClose():

  2719.             event.ignore()

  2720.             return

  2721. 

  2722.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2723.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2724.             self.fMacClosingHelper = False

  2725.             event.ignore()

  2726. 

  2727.             for i in reversed(range(self.fPluginCount)):

  2728.                 self.host.show_custom_ui(i, False)

  2729. 

  2730.             QTimer.singleShot(100, self.close)

  2731.             return

  2732. 

  2733.         self.killTimers()

  2734.         self.saveSettings()

  2735. 

  2736.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2737.             if not self.slot_engineStop(True):

  2738.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2739.                 event.ignore()

  2740.                 return

  2741. 

  2742.         QMainWindow.closeEvent(self, event)

  2743. 

  2744. # ------------------------------------------------------------------------------------------------

  2745. # Canvas callback

  2746. 

  2747. def canvasCallback(action, value1, value2, valueStr):

  2748.     host = gCarla.gui.host

  2749. 

  2750.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2751.         return

  2752. 

  2753.     if action == patchcanvas.ACTION_GROUP_INFO:

  2754.         pass

  2755. 

  2756.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2757.         pass

  2758. 

  2759.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2760.         groupId = value1

  2761.         patchcanvas.splitGroup(groupId)

  2762.         gCarla.gui.updateMiniCanvasLater()

  2763. 

  2764.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2765.         groupId = value1

  2766.         patchcanvas.joinGroup(groupId)

  2767.         gCarla.gui.updateMiniCanvasLater()

  2768. 

  2769.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2770.         if gCarla.gui.fIsProjectLoading or not host.is_engine_running():

  2771.             return

  2772.         groupId = value1

  2773.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2774.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2775.         gCarla.gui.updateMiniCanvasLater()

  2776. 

  2777.     elif action == patchcanvas.ACTION_PORT_INFO:

  2778.         pass

  2779. 

  2780.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2781.         pass

  2782. 

  2783.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2784.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2785. 

  2786.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2787.             print("Connection failed:", host.get_last_error())

  2788. 

  2789.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2790.         connectionId = value1

  2791. 

  2792.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2793.             print("Disconnect failed:", host.get_last_error())

  2794. 

  2795.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2796.         pluginId = value1

  2797. 

  2798.         if not host.clone_plugin(pluginId):

  2799.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2800.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2801. 

  2802.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2803.         pluginId = value1

  2804.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2805. 

  2806.         if pwidget is not None:

  2807.             pwidget.showEditDialog()

  2808. 

  2809.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2810.         pluginId = value1

  2811.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2812. 

  2813.         if pwidget is not None:

  2814.             pwidget.showRenameDialog()

  2815. 

  2816.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2817.         pluginId = value1

  2818.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2819. 

  2820.         if pwidget is not None:

  2821.             pwidget.showReplaceDialog()

  2822. 

  2823.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2824.         pluginId = value1

  2825. 

  2826.         if not host.remove_plugin(pluginId):

  2827.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2828.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2829. 

  2830.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2831.         pluginId = value1

  2832.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2833. 

  2834.         if pwidget is not None:

  2835.             pwidget.showCustomUI()

  2836. 

  2837.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2838.         gCarla.gui.slot_showPluginActionsMenu()

  2839. 

  2840.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2841.         # FIXME

  2842.         if gCarla.gui.fPluginCount == 0: return

  2843.         pluginId = value1

  2844.         width, height = [int(v) for v in valueStr.split(":")]

  2845.         return host.render_inline_display(pluginId, width, height)

  2846. 

  2847. # ------------------------------------------------------------------------------------------------------------

  2848. # Engine callback

  2849. 

  2850. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2851.     # kdevelop likes this :)

  2852.     if False: host = CarlaHostNull()

  2853. 

  2854.     valueStr = charPtrToString(valueStr)

  2855. 

  2856.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2857.         host.processMode   = value1

  2858.         host.transportMode = value2

  2859.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2860.         host.processMode   = value1

  2861.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2862.         host.transportMode  = value1

  2863.         host.transportExtra = valueStr

  2864. 

  2865.     if action == ENGINE_CALLBACK_DEBUG:

  2866.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2867.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2868.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2869.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2870.         host.PluginRemovedCallback.emit(pluginId)

  2871.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2872.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2873.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2874.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2875.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2876.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2877.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2878.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2879.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  2880.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  2881.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  2882.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  2883.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  2884.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2885.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2886.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2887.         host.ProgramChangedCallback.emit(pluginId, value1)

  2888.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2889.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2890.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2891.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2892.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2893.         host.UiStateChangedCallback.emit(pluginId, value1)

  2894.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2895.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2896.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2897.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2898.     elif action == ENGINE_CALLBACK_UPDATE:

  2899.         host.UpdateCallback.emit(pluginId)

  2900.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2901.         host.ReloadInfoCallback.emit(pluginId)

  2902.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2903.         host.ReloadParametersCallback.emit(pluginId)

  2904.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2905.         host.ReloadProgramsCallback.emit(pluginId)

  2906.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2907.         host.ReloadAllCallback.emit(pluginId)

  2908.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2909.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2910.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2911.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2912.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2913.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2914.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2915.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2916.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  2917.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  2918.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2919.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2920.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2921.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2922.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2923.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2924.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2925.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2926.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2927.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2928.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2929.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2930.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2931.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2932.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2933.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2934.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2935.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2936.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2937.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2938.         host.EngineStoppedCallback.emit()

  2939.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2940.         host.ProcessModeChangedCallback.emit(value1)

  2941.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2942.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2943.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2944.         host.BufferSizeChangedCallback.emit(value1)

  2945.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2946.         host.SampleRateChangedCallback.emit(valuef)

  2947.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2948.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2949.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2950.         host.ProjectLoadFinishedCallback.emit()

  2951.     elif action == ENGINE_CALLBACK_NSM:

  2952.         host.NSMCallback.emit(value1, value2, valueStr)

  2953.     elif action == ENGINE_CALLBACK_IDLE:

  2954.         QApplication.processEvents()

  2955.     elif action == ENGINE_CALLBACK_INFO:

  2956.         host.InfoCallback.emit(valueStr)

  2957.     elif action == ENGINE_CALLBACK_ERROR:

  2958.         host.ErrorCallback.emit(valueStr)

  2959.     elif action == ENGINE_CALLBACK_QUIT:

  2960.         host.QuitCallback.emit()

  2961.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2962.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2963.     else:

  2964.         print("unhandled action", action)

  2965. 

  2966. # ------------------------------------------------------------------------------------------------------------

  2967. # File callback

  2968. 

  2969. def fileCallback(ptr, action, isDir, title, filter):

  2970.     title  = charPtrToString(title)

  2971.     filter = charPtrToString(filter)

  2972. 

  2973.     if action == FILE_CALLBACK_OPEN:

  2974.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2975.     elif action == FILE_CALLBACK_SAVE:

  2976.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2977.     else:

  2978.         ret, ok = ("", "")

  2979. 

  2980.     # FIXME use ok value, test if it works as expected

  2981.     if not ret:

  2982.         return None

  2983. 

  2984.     # FIXME

  2985.     global fileRet

  2986.     fileRet = c_char_p(ret.encode("utf-8"))

  2987.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2988.     return retval.contents.value

  2989. 

  2990. # ------------------------------------------------------------------------------------------------------------

  2991. # Init host

  2992. 

  2993. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2994.     pathBinaries, pathResources = getPaths(libPrefix)

  2995. 

  2996.     # --------------------------------------------------------------------------------------------------------

  2997.     # Fail if binary dir is not found

  2998. 

  2999.     if not os.path.exists(pathBinaries):

  3000.         if failError:

  3001.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3002.             sys.exit(1)

  3003.         return

  3004. 

  3005.     # --------------------------------------------------------------------------------------------------------

  3006.     # Check if we should open main lib as local or global

  3007. 

  3008.     settings = QSafeSettings("falkTX", "Carla2")

  3009. 

  3010.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3011. 

  3012.     # --------------------------------------------------------------------------------------------------------

  3013.     # Set Carla library name

  3014. 

  3015.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3016.     libname   = os.path.join(pathBinaries, libname)

  3017.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3018. 

  3019.     # --------------------------------------------------------------------------------------------------------

  3020.     # Print info

  3021. 

  3022.     print("Carla %s started, status:" % VERSION)

  3023.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  3024.     print("  Qt version:     %s" % QT_VERSION_STR)

  3025.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3026.     print("  Binary dir:     %s" % pathBinaries)

  3027.     print("  Resources dir:  %s" % pathResources)

  3028. 

  3029.     # --------------------------------------------------------------------------------------------------------

  3030.     # Init host

  3031. 

  3032.     if failError:

  3033.         # no try

  3034.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3035.     else:

  3036.         try:

  3037.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3038.         except:

  3039.             host = CarlaHostQtNull()

  3040. 

  3041.     host.isControl = isControl

  3042.     host.isPlugin  = isPlugin

  3043. 

  3044.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3045.     host.set_file_callback(fileCallback)

  3046. 

  3047.     # If it's a plugin the paths are already set

  3048.     if not isPlugin:

  3049.         host.pathBinaries  = pathBinaries

  3050.         host.pathResources = pathResources

  3051.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3052.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3053. 

  3054.         if not isControl:

  3055.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3056. 

  3057.     # --------------------------------------------------------------------------------------------------------

  3058.     # Init utils

  3059. 

  3060.     gCarla.utils = CarlaUtils(utilsname)

  3061.     gCarla.utils.set_process_name(os.path.basename(initName))

  3062. 

  3063.     try:

  3064.         sys.stdout.flush()

  3065.     except:

  3066.         pass

  3067. 

  3068.     sys.stdout = CarlaPrint(False)

  3069.     sys.stderr = CarlaPrint(True)

  3070.     sys.excepthook = sys_excepthook

  3071. 

  3072.     # --------------------------------------------------------------------------------------------------------

  3073.     # Done

  3074. 

  3075.     return host

  3076. 

  3077. # ------------------------------------------------------------------------------------------------------------

  3078. # Load host settings

  3079. 

  3080. def loadHostSettings(host):

  3081.     # kdevelop likes this :)

  3082.     if False: host = CarlaHostNull()

  3083. 

  3084.     settings = QSafeSettings("falkTX", "Carla2")

  3085. 

  3086.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3087.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3088.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3089.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3090.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3091.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3092.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3093.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3094.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3095.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool)

  3096.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3097.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3098.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3099.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3100. 

  3101.     if host.isPlugin:

  3102.         return

  3103. 

  3104.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3105. 

  3106.     # enums

  3107.     if host.audioDriverForced is None:

  3108.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3109. 

  3110.     if not host.processModeForced:

  3111.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3112. 

  3113.     host.nextProcessMode = host.processMode

  3114. 

  3115.     # --------------------------------------------------------------------------------------------------------

  3116.     # fix things if needed

  3117. 

  3118.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3119.         if LADISH_APP_NAME:

  3120.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3121.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3122. 

  3123.         else:

  3124.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3125. 

  3126.     if gCarla.nogui:

  3127.         host.showLogs = False

  3128. 

  3129.     # --------------------------------------------------------------------------------------------------------

  3130.     # run headless host now if nogui option enabled

  3131. 

  3132.     if gCarla.nogui:

  3133.         runHostWithoutUI(host)

  3134. 

  3135. # ------------------------------------------------------------------------------------------------------------

  3136. # Set host settings

  3137. 

  3138. def setHostSettings(host):

  3139.     # kdevelop likes this :)

  3140.     if False: host = CarlaHostNull()

  3141. 

  3142.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3143.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3144.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3145.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3146.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3147.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3148.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3149.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3150. 

  3151.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3152.         return

  3153. 

  3154.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3155.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3156.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3157. 

  3158. # ------------------------------------------------------------------------------------------------------------

  3159. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3160. 

  3161. def setEngineSettings(host):

  3162.     # kdevelop likes this :)

  3163.     if False: host = CarlaHostNull()

  3164. 

  3165.     # --------------------------------------------------------------------------------------------------------

  3166.     # do nothing if control

  3167. 

  3168.     if host.isControl:

  3169.         return "Control"

  3170. 

  3171.     # --------------------------------------------------------------------------------------------------------

  3172. 

  3173.     settings = QSafeSettings("falkTX", "Carla2")

  3174. 

  3175.     # --------------------------------------------------------------------------------------------------------

  3176.     # main settings

  3177. 

  3178.     setHostSettings(host)

  3179. 

  3180.     # --------------------------------------------------------------------------------------------------------

  3181.     # file paths

  3182. 

  3183.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3184.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3185. 

  3186.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3187.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3188. 

  3189.     # --------------------------------------------------------------------------------------------------------

  3190.     # plugin paths

  3191. 

  3192.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3193.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3194.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3195.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3196.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3197.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3198.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3199. 

  3200.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3201.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3202.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3203.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3204.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3205.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3206.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3207. 

  3208.     # --------------------------------------------------------------------------------------------------------

  3209.     # don't continue if plugin

  3210. 

  3211.     if host.isPlugin:

  3212.         return "Plugin"

  3213. 

  3214.     # --------------------------------------------------------------------------------------------------------

  3215.     # osc settings

  3216. 

  3217.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3218. 

  3219.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3220.         portNumTCP = -1

  3221.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3222.         portNumTCP = 0

  3223.     else:

  3224.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3225. 

  3226.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3227.         portNumUDP = -1

  3228.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3229.         portNumUDP = 0

  3230.     else:

  3231.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3232. 

  3233.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3234.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3235.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3236. 

  3237.     # --------------------------------------------------------------------------------------------------------

  3238.     # wine settings

  3239. 

  3240.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3241.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3242.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3243.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3244.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3245.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3246. 

  3247.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3248.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3249.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3250.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3251.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3252.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3253. 

  3254.     # --------------------------------------------------------------------------------------------------------

  3255.     # driver and device settings

  3256. 

  3257.     # driver name

  3258.     if host.audioDriverForced is not None:

  3259.         audioDriver = host.audioDriverForced

  3260.     else:

  3261.         try:

  3262.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3263.         except:

  3264.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3265. 

  3266.     # driver options

  3267.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3268.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3269.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3270.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3271. 

  3272.     # Only setup audio things if engine is not running

  3273.     if not host.is_engine_running():

  3274.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3275.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3276. 

  3277.         if not audioDriver.startswith("JACK"):

  3278.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3279.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3280.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3281. 

  3282.     # --------------------------------------------------------------------------------------------------------

  3283.     # fix things if needed

  3284. 

  3285.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3286.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3287.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3288. 

  3289.     # --------------------------------------------------------------------------------------------------------

  3290.     # return selected driver name

  3291. 

  3292.     return audioDriver

  3293. 

  3294. # ------------------------------------------------------------------------------------------------------------

  3295. # Run Carla without showing UI

  3296. 

  3297. def runHostWithoutUI(host):

  3298.     # kdevelop likes this :)

  3299.     if False: host = CarlaHostNull()

  3300. 

  3301.     # --------------------------------------------------------------------------------------------------------

  3302.     # Some initial checks

  3303. 

  3304.     if not gCarla.nogui:

  3305.         return

  3306. 

  3307.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3308. 

  3309.     if not projectFile:

  3310.         print("Carla no-gui mode can only be used together with a project file.")

  3311.         sys.exit(1)

  3312. 

  3313.     # --------------------------------------------------------------------------------------------------------

  3314.     # Additional imports

  3315. 

  3316.     from time import sleep

  3317. 

  3318.     # --------------------------------------------------------------------------------------------------------

  3319.     # Init engine

  3320. 

  3321.     audioDriver = setEngineSettings(host)

  3322.     if not host.engine_init(audioDriver, "Carla"):

  3323.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3324.         sys.exit(1)

  3325. 

  3326.     if not host.load_project(projectFile):

  3327.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3328.         host.engine_close()

  3329.         sys.exit(1)

  3330. 

  3331.     # --------------------------------------------------------------------------------------------------------

  3332.     # Idle

  3333. 

  3334.     print("Carla ready!")

  3335. 

  3336.     while host.is_engine_running() and not gCarla.term:

  3337.         host.engine_idle()

  3338.         sleep(0.0333) # 30 Hz

  3339. 

  3340.     # --------------------------------------------------------------------------------------------------------

  3341.     # Stop

  3342. 

  3343.     host.engine_close()

  3344.     sys.exit(0)

  3345. 

  3346. # ------------------------------------------------------------------------------------------------------------