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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.         patchcanvas.handleAllPluginsRemoved()

  919.         self.killTimers()

  920. 

  921.         if self.host.is_engine_running():

  922.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  923.                 self.removeAllPlugins()

  924.             elif self.fPluginCount != 0:

  925.                 self.fCurrentlyRemovingAllPlugins = True

  926.                 self.projectLoadingStarted()

  927. 

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

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

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

  931. 

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

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

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

  935. 

  936.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  937.             self.close()

  938.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  939.             self.slot_engineStart()

  940.             self.loadProjectNow()

  941.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  942. 

  943.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  944. 

  945.     # --------------------------------------------------------------------------------------------------------

  946.     # Engine (host callbacks)

  947. 

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

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

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

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

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

  953. 

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

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

  956. 

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

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

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

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

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

  962.             self.fExternalPatchbay = False

  963.         else:

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

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

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

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

  968.             self.fExternalPatchbay = True

  969. 

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

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

  972. 

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

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

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

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

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

  978. 

  979.         if not self.host.isPlugin:

  980.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  981. 

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

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

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

  985. 

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

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

  988. 

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

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

  991. 

  992.         self.updateBufferSize(bufferSize)

  993.         self.updateSampleRate(int(sampleRate))

  994.         self.refreshRuntimeInfo(0.0, 0)

  995.         self.startTimers()

  996. 

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

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

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

  1000.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1001.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1002. 

  1003.     @pyqtSlot()

  1004.     def slot_handleEngineStoppedCallback(self):

  1005.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1006. 

  1007.         patchcanvas.clear()

  1008.         self.killTimers()

  1009. 

  1010.         # just in case

  1011.         self.removeAllPlugins()

  1012.         self.refreshRuntimeInfo(0.0, 0)

  1013. 

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

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

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

  1017. 

  1018.         if not (self.host.isControl or self.host.isPlugin):

  1019.             self.ui.act_file_save.setEnabled(False)

  1020.             self.ui.act_engine_start.setEnabled(True)

  1021.             self.ui.act_engine_stop.setEnabled(False)

  1022. 

  1023.         if self.host.isPlugin or not self.fSessionManagerName:

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

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

  1026. 

  1027.     @pyqtSlot(int, str)

  1028.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1029.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1030. 

  1031.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1032.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1033. 

  1034.     @pyqtSlot(int)

  1035.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1036.         self.updateBufferSize(newBufferSize)

  1037. 

  1038.     @pyqtSlot(float)

  1039.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1040.         self.updateSampleRate(int(newSampleRate))

  1041. 

  1042.     @pyqtSlot(int, bool, str)

  1043.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1044.         if self.fCancelableActionBox is not None:

  1045.             self.fCancelableActionBox.close()

  1046. 

  1047.         if started:

  1048.             self.fCancelableActionBox = QMessageBox(self)

  1049.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1050.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1051.             self.fCancelableActionBox.setText(action)

  1052.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

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

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

  1055.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1056.             self.fCancelableActionBox.show()

  1057. 

  1058.         else:

  1059.             self.fCancelableActionBox = None

  1060. 

  1061.     @pyqtSlot()

  1062.     def slot_canlableActionBoxClicked(self):

  1063.         self.host.cancel_engine_action()

  1064. 

  1065.     @pyqtSlot()

  1066.     def slot_handleProjectLoadFinishedCallback(self):

  1067.         self.fIsProjectLoading = False

  1068.         self.projectLoadingFinished()

  1069. 

  1070.     # --------------------------------------------------------------------------------------------------------

  1071.     # Plugins

  1072. 

  1073.     def removeAllPlugins(self):

  1074.         self.ui.act_plugin_remove_all.setEnabled(False)

  1075.         patchcanvas.handleAllPluginsRemoved()

  1076. 

  1077.         while self.ui.listWidget.takeItem(0):

  1078.             pass

  1079. 

  1080.         self.clearSideStuff()

  1081. 

  1082.         for pitem in self.fPluginList:

  1083.             if pitem is None:

  1084.                 continue

  1085. 

  1086.             pitem.close()

  1087.             del pitem

  1088. 

  1089.         self.fPluginCount = 0

  1090.         self.fPluginList  = []

  1091. 

  1092.     # --------------------------------------------------------------------------------------------------------

  1093.     # Plugins (menu actions)

  1094. 

  1095.     def showAddPluginDialog(self):

  1096.         if self.fPluginDatabaseDialog is None:

  1097.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1098.         dialog = self.fPluginDatabaseDialog

  1099. 

  1100.         ret = dialog.exec_()

  1101. 

  1102.         if dialog.fFavoritePluginsChanged:

  1103.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1104. 

  1105.         if not ret:

  1106.             return

  1107. 

  1108.         if not self.host.is_engine_running():

  1109.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1110.             return

  1111. 

  1112.         btype    = dialog.fRetPlugin['build']

  1113.         ptype    = dialog.fRetPlugin['type']

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

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

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

  1117.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1118. 

  1119.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1120. 

  1121.     def showAddJackAppDialog(self):

  1122.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1123. 

  1124.         if not dialog.exec_():

  1125.             return

  1126. 

  1127.         if not self.host.is_engine_running():

  1128.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1129.             return

  1130. 

  1131.         return dialog.getCommandAndFlags()

  1132. 

  1133.     @pyqtSlot()

  1134.     def slot_favoritePluginAdd(self):

  1135.         plugin = self.sender().data()

  1136. 

  1137.         if plugin is None:

  1138.             return

  1139. 

  1140.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1141.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1142.             CustomMessageBox(self,

  1143.                              QMessageBox.Critical,

  1144.                              self.tr("Error"),

  1145.                              self.tr("Failed to load plugin"),

  1146.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1147. 

  1148.     @pyqtSlot()

  1149.     def slot_showPluginActionsMenu(self):

  1150.         menu = QMenu(self)

  1151. 

  1152.         menu.addSection("Plugins")

  1153.         menu.addAction(self.ui.act_plugin_add)

  1154. 

  1155.         if len(self.fFavoritePlugins) != 0:

  1156.             fmenu = QMenu("Add from favorites", self)

  1157.             for p in self.fFavoritePlugins:

  1158.                 act = fmenu.addAction(p['name'])

  1159.                 act.setData(p)

  1160.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1161.             menu.addMenu(fmenu)

  1162. 

  1163.         menu.addAction(self.ui.act_plugin_remove_all)

  1164. 

  1165.         menu.addSection("All plugins (macros)")

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

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

  1168.         menu.addSeparator()

  1169.         menu.addAction(self.ui.act_plugins_volume100)

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

  1171.         menu.addSeparator()

  1172.         menu.addAction(self.ui.act_plugins_wet100)

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

  1174.         menu.addSeparator()

  1175.         menu.addAction(self.ui.act_plugins_center)

  1176.         menu.addSeparator()

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

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

  1179. 

  1180.         menu.exec_(QCursor.pos())

  1181. 

  1182.     @pyqtSlot()

  1183.     def slot_pluginAdd(self):

  1184.         data = self.showAddPluginDialog()

  1185. 

  1186.         if data is None:

  1187.             return

  1188. 

  1189.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1190. 

  1191.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1192.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1193.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1194. 

  1195.     @pyqtSlot()

  1196.     def slot_confirmRemoveAll(self):

  1197.         if self.fPluginCount == 0:

  1198.             return

  1199. 

  1200.         if QMessageBox.question(self, self.tr("Remove All"),

  1201.                                       self.tr("Are you sure you want to remove all plugins?"),

  1202.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1203.             return

  1204. 

  1205.         self.pluginRemoveAll()

  1206. 

  1207.     def pluginRemoveAll(self):

  1208.         if self.fPluginCount == 0:

  1209.             return

  1210. 

  1211.         self.fCurrentlyRemovingAllPlugins = True

  1212.         self.projectLoadingStarted()

  1213. 

  1214.         if not self.host.remove_all_plugins():

  1215.             self.projectLoadingFinished()

  1216.             self.fCurrentlyRemovingAllPlugins = False

  1217.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1218.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1219. 

  1220.     @pyqtSlot()

  1221.     def slot_jackAppAdd(self):

  1222.         data = self.showAddJackAppDialog()

  1223. 

  1224.         if data is None:

  1225.             return

  1226. 

  1227.         filename, name, label = data

  1228. 

  1229.         if not filename:

  1230.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1231.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1232.             return

  1233. 

  1234.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1235.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1236.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1237. 

  1238.     # --------------------------------------------------------------------------------------------------------

  1239.     # Plugins (macros)

  1240. 

  1241.     @pyqtSlot()

  1242.     def slot_pluginsEnable(self):

  1243.         if not self.host.is_engine_running():

  1244.             return

  1245. 

  1246.         for pitem in self.fPluginList:

  1247.             if pitem is None:

  1248.                 break

  1249. 

  1250.             pitem.getWidget().setActive(True, True, True)

  1251. 

  1252.     @pyqtSlot()

  1253.     def slot_pluginsDisable(self):

  1254.         if not self.host.is_engine_running():

  1255.             return

  1256. 

  1257.         for pitem in self.fPluginList:

  1258.             if pitem is None:

  1259.                 break

  1260. 

  1261.             pitem.getWidget().setActive(False, True, True)

  1262. 

  1263.     @pyqtSlot()

  1264.     def slot_pluginsVolume100(self):

  1265.         if not self.host.is_engine_running():

  1266.             return

  1267. 

  1268.         for pitem in self.fPluginList:

  1269.             if pitem is None:

  1270.                 break

  1271. 

  1272.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1273. 

  1274.     @pyqtSlot()

  1275.     def slot_pluginsMute(self):

  1276.         if not self.host.is_engine_running():

  1277.             return

  1278. 

  1279.         for pitem in self.fPluginList:

  1280.             if pitem is None:

  1281.                 break

  1282. 

  1283.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1284. 

  1285.     @pyqtSlot()

  1286.     def slot_pluginsWet100(self):

  1287.         if not self.host.is_engine_running():

  1288.             return

  1289. 

  1290.         for pitem in self.fPluginList:

  1291.             if pitem is None:

  1292.                 break

  1293. 

  1294.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1295. 

  1296.     @pyqtSlot()

  1297.     def slot_pluginsBypass(self):

  1298.         if not self.host.is_engine_running():

  1299.             return

  1300. 

  1301.         for pitem in self.fPluginList:

  1302.             if pitem is None:

  1303.                 break

  1304. 

  1305.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1306. 

  1307.     @pyqtSlot()

  1308.     def slot_pluginsCenter(self):

  1309.         if not self.host.is_engine_running():

  1310.             return

  1311. 

  1312.         for pitem in self.fPluginList:

  1313.             if pitem is None:

  1314.                 break

  1315. 

  1316.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1317.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1318.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1319. 

  1320.     @pyqtSlot()

  1321.     def slot_pluginsCompact(self):

  1322.         for pitem in self.fPluginList:

  1323.             if pitem is None:

  1324.                 break

  1325.             pitem.compact()

  1326. 

  1327.     @pyqtSlot()

  1328.     def slot_pluginsExpand(self):

  1329.         for pitem in self.fPluginList:

  1330.             if pitem is None:

  1331.                 break

  1332.             pitem.expand()

  1333. 

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

  1335.     # Plugins (host callbacks)

  1336. 

  1337.     @pyqtSlot(int, str)

  1338.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1339.         if pluginId != self.fPluginCount:

  1340.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1341.             pitem = self.getPluginItem(pluginId)

  1342.             pitem.recreateWidget()

  1343.             return

  1344. 

  1345.         pitem = self.ui.listWidget.createItem(pluginId)

  1346.         self.fPluginList.append(pitem)

  1347.         self.fPluginCount += 1

  1348. 

  1349.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1350. 

  1351.     @pyqtSlot(int)

  1352.     def slot_handlePluginRemovedCallback(self, pluginId):

  1353.         patchcanvas.handlePluginRemoved(pluginId)

  1354. 

  1355.         if pluginId in self.fSelectedPlugins:

  1356.             self.clearSideStuff()

  1357. 

  1358.         if self.fPluginCount == 0:

  1359.             return

  1360. 

  1361.         pitem = self.getPluginItem(pluginId)

  1362. 

  1363.         self.fPluginCount -= 1

  1364.         self.fPluginList.pop(pluginId)

  1365.         self.ui.listWidget.takeItem(pluginId)

  1366. 

  1367.         if pitem is not None:

  1368.             pitem.close()

  1369.             del pitem

  1370. 

  1371.         if self.fPluginCount == 0:

  1372.             self.ui.act_plugin_remove_all.setEnabled(False)

  1373.             if self.fCurrentlyRemovingAllPlugins:

  1374.                 self.fCurrentlyRemovingAllPlugins = False

  1375.                 self.projectLoadingFinished()

  1376.             return

  1377. 

  1378.         # push all plugins 1 slot back

  1379.         for i in range(pluginId, self.fPluginCount):

  1380.             pitem = self.fPluginList[i]

  1381.             pitem.setPluginId(i)

  1382. 

  1383.         self.ui.act_plugin_remove_all.setEnabled(True)

  1384. 

  1385.     # --------------------------------------------------------------------------------------------------------

  1386.     # Canvas

  1387. 

  1388.     def clearSideStuff(self):

  1389.         if self.fWithCanvas:

  1390.             self.scene.clearSelection()

  1391. 

  1392.         self.fSelectedPlugins = []

  1393. 

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

  1395.         self.ui.scrollArea.setEnabled(False)

  1396. 

  1397.         self.fPeaksCleared = True

  1398.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1399.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1400.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1401.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1402. 

  1403.     def setupCanvas(self):

  1404.         pOptions = patchcanvas.options_t()

  1405.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1406.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1407.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1408.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1409.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1410.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1411. 

  1412.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1413.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1414.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1415.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1416.         else:

  1417.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1418. 

  1419.         pFeatures = patchcanvas.features_t()

  1420.         pFeatures.group_info   = False

  1421.         pFeatures.group_rename = False

  1422.         pFeatures.port_info    = False

  1423.         pFeatures.port_rename  = False

  1424.         pFeatures.handle_group_pos = False

  1425. 

  1426.         patchcanvas.setOptions(pOptions)

  1427.         patchcanvas.setFeatures(pFeatures)

  1428.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1429. 

  1430.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1431. 

  1432.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1433.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1434.             self.fCanvasHeight = int(tryCanvasSize[1])

  1435.         else:

  1436.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1437.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1438. 

  1439.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1440.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1441.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1442. 

  1443.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1444.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1445. 

  1446.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1447.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1448. 

  1449.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

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

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

  1452. 

  1453.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1454.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1455. 

  1456.         else:

  1457.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1458. 

  1459.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1460.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1461.         else:

  1462.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1463. 

  1464.     def updateCanvasInitialPos(self):

  1465.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1466.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1467.         patchcanvas.setInitialPos(x, y)

  1468. 

  1469.     def updateMiniCanvasLater(self):

  1470.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1471. 

  1472.     # --------------------------------------------------------------------------------------------------------

  1473.     # Canvas (menu actions)

  1474. 

  1475.     @pyqtSlot()

  1476.     def slot_canvasShowInternal(self):

  1477.         self.fExternalPatchbay = False

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

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

  1480.         self.ui.act_canvas_show_internal.setChecked(True)

  1481.         self.ui.act_canvas_show_external.setChecked(False)

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

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

  1484.         self.slot_canvasRefresh()

  1485. 

  1486.     @pyqtSlot()

  1487.     def slot_canvasShowExternal(self):

  1488.         self.fExternalPatchbay = True

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

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

  1491.         self.ui.act_canvas_show_internal.setChecked(False)

  1492.         self.ui.act_canvas_show_external.setChecked(True)

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

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

  1495.         self.slot_canvasRefresh()

  1496. 

  1497.     @pyqtSlot()

  1498.     def slot_canvasArrange(self):

  1499.         patchcanvas.arrange()

  1500. 

  1501.     @pyqtSlot()

  1502.     def slot_canvasRefresh(self):

  1503.         patchcanvas.clear()

  1504. 

  1505.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1506.             return

  1507. 

  1508.         if self.host.is_engine_running():

  1509.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1510. 

  1511.         self.updateMiniCanvasLater()

  1512. 

  1513.     @pyqtSlot()

  1514.     def slot_canvasZoomFit(self):

  1515.         self.scene.zoom_fit()

  1516. 

  1517.     @pyqtSlot()

  1518.     def slot_canvasZoomIn(self):

  1519.         self.scene.zoom_in()

  1520. 

  1521.     @pyqtSlot()

  1522.     def slot_canvasZoomOut(self):

  1523.         self.scene.zoom_out()

  1524. 

  1525.     @pyqtSlot()

  1526.     def slot_canvasZoomReset(self):

  1527.         self.scene.zoom_reset()

  1528. 

  1529.     @pyqtSlot()

  1530.     def slot_canvasSaveImage(self):

  1531.         if self.fProjectFilename:

  1532.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1533.         else:

  1534.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1535. 

  1536.         fileDialog = QFileDialog(self)

  1537.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1538.         fileDialog.setDirectory(dir)

  1539.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1540.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1541.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1542.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1543.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1544. 

  1545.         ok = fileDialog.exec_()

  1546. 

  1547.         if not ok:

  1548.             return

  1549. 

  1550.         newPath = fileDialog.selectedFiles()

  1551. 

  1552.         if len(newPath) != 1:

  1553.             return

  1554. 

  1555.         newPath = newPath[0]

  1556. 

  1557.         if QT_VERSION >= 0x50900:

  1558.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1559.                 imgFormat = b"JPG"

  1560.             else:

  1561.                 imgFormat = b"PNG"

  1562.         else:

  1563.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1564.                 imgFormat = b"JPG"

  1565.             else:

  1566.                 imgFormat = b"PNG"

  1567. 

  1568.         sender = self.sender()

  1569.         if sender == self.ui.act_canvas_save_image_2x:

  1570.             zoom = 2.0

  1571.         elif sender == self.ui.act_canvas_save_image_4x:

  1572.             zoom = 4.0

  1573.         else:

  1574.             zoom = 1.0

  1575. 

  1576.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1577.         painter = QPainter(image)

  1578.         painter.save()

  1579.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1580.         self.scene.clearSelection()

  1581.         self.scene.render(painter)

  1582.         painter.restore()

  1583.         del painter

  1584. 

  1585.         iw = QImageWriter(newPath)

  1586.         iw.setFormat(imgFormat)

  1587.         iw.setCompression(-1)

  1588. 

  1589.         if QT_VERSION >= 0x50500:

  1590.             iw.setOptimizedWrite(True)

  1591. 

  1592.         iw.write(image)

  1593. 

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

  1595.     # Canvas (canvas callbacks)

  1596. 

  1597.     @pyqtSlot()

  1598.     def slot_canvasSelectionChanged(self):

  1599.         self.updateMiniCanvasLater()

  1600. 

  1601.     @pyqtSlot(float)

  1602.     def slot_canvasScaleChanged(self, scale):

  1603.         self.ui.miniCanvasPreview.setViewScale(scale)

  1604. 

  1605.     @pyqtSlot(list)

  1606.     def slot_canvasPluginSelected(self, pluginList):

  1607.         self.ui.keyboard.allNotesOff(False)

  1608.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1609.         self.fSelectedPlugins = pluginList

  1610. 

  1611.     # --------------------------------------------------------------------------------------------------------

  1612.     # Canvas (host callbacks)

  1613. 

  1614.     @pyqtSlot(int, int, int, str)

  1615.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1616.         pcSplit = patchcanvas.SPLIT_UNDEF

  1617.         pcIcon  = patchcanvas.ICON_APPLICATION

  1618. 

  1619.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1620.             pcIcon = patchcanvas.ICON_PLUGIN

  1621.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1622.             pcIcon = patchcanvas.ICON_HARDWARE

  1623.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1624.             pass

  1625.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1626.             pcIcon = patchcanvas.ICON_DISTRHO

  1627.         elif clientIcon == PATCHBAY_ICON_FILE:

  1628.             pcIcon = patchcanvas.ICON_FILE

  1629. 

  1630.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1631. 

  1632.         self.updateMiniCanvasLater()

  1633. 

  1634.         if pluginId < 0:

  1635.             return

  1636.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1637.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1638.             return

  1639. 

  1640.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1641.             hasCustomUI = False

  1642.             hasInlineDisplay = False

  1643.         else:

  1644.             hints = self.host.get_plugin_info(pluginId)['hints']

  1645.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1646.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1647. 

  1648.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1649. 

  1650.     @pyqtSlot(int)

  1651.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1652.         patchcanvas.removeGroup(clientId)

  1653.         self.updateMiniCanvasLater()

  1654. 

  1655.     @pyqtSlot(int, str)

  1656.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1657.         patchcanvas.renameGroup(clientId, newClientName)

  1658.         self.updateMiniCanvasLater()

  1659. 

  1660.     @pyqtSlot(int, int, int)

  1661.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1662.         pcIcon = patchcanvas.ICON_APPLICATION

  1663. 

  1664.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1665.             pcIcon = patchcanvas.ICON_PLUGIN

  1666.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1667.             pcIcon = patchcanvas.ICON_HARDWARE

  1668.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1669.             pass

  1670.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1671.             pcIcon = patchcanvas.ICON_DISTRHO

  1672.         elif clientIcon == PATCHBAY_ICON_FILE:

  1673.             pcIcon = patchcanvas.ICON_FILE

  1674. 

  1675.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1676.         self.updateMiniCanvasLater()

  1677. 

  1678.         if pluginId < 0:

  1679.             return

  1680.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1681.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1682.             return

  1683. 

  1684.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1685.             hasCustomUI = False

  1686.             hasInlineDisplay = False

  1687.         else:

  1688.             hints = self.host.get_plugin_info(pluginId)['hints']

  1689.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1690.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1691. 

  1692.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1693. 

  1694.     @pyqtSlot(int, int, int, int, int)

  1695.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1696.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1697.         self.updateMiniCanvasLater()

  1698. 

  1699.     @pyqtSlot(int, int, int, int, str)

  1700.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1701.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1702.             portMode = patchcanvas.PORT_MODE_INPUT

  1703.         else:

  1704.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1705. 

  1706.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1707.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1708.             isAlternate = False

  1709.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1710.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1711.             isAlternate = False

  1712.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1713.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1714.             isAlternate = False

  1715.         else:

  1716.             portType    = patchcanvas.PORT_TYPE_NULL

  1717.             isAlternate = False

  1718. 

  1719.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1720.         self.updateMiniCanvasLater()

  1721. 

  1722.     @pyqtSlot(int, int)

  1723.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1724.         patchcanvas.removePort(groupId, portId)

  1725.         self.updateMiniCanvasLater()

  1726. 

  1727.     @pyqtSlot(int, int, int, int, str)

  1728.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1729.         patchcanvas.renamePort(groupId, portId, newPortName)

  1730.         self.updateMiniCanvasLater()

  1731. 

  1732.     @pyqtSlot(int, int, int, str)

  1733.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1734.         # TODO

  1735.         pass

  1736. 

  1737.     @pyqtSlot(int, int)

  1738.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1739.         # TODO

  1740.         pass

  1741. 

  1742.     @pyqtSlot(int, int, int, str)

  1743.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1744.         # TODO

  1745.         pass

  1746. 

  1747.     @pyqtSlot(int, int, int, int, int)

  1748.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1749.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1750.         self.updateMiniCanvasLater()

  1751. 

  1752.     @pyqtSlot(int, int, int)

  1753.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1754.         patchcanvas.disconnectPorts(connectionId)

  1755.         self.updateMiniCanvasLater()

  1756. 

  1757.     # --------------------------------------------------------------------------------------------------------

  1758.     # Settings

  1759. 

  1760.     def saveSettings(self):

  1761.         settings = QSafeSettings()

  1762. 

  1763.         settings.setValue("Geometry", self.saveGeometry())

  1764.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1765. 

  1766.         if not self.host.isControl:

  1767.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1768. 

  1769.         diskFolders = []

  1770. 

  1771.         for i in range(self.ui.cb_disk.count()):

  1772.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1773. 

  1774.         settings.setValue("DiskFolders", diskFolders)

  1775.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1776. 

  1777.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1778.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1779.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1780.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1781. 

  1782.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1783.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1784. 

  1785.         return settings

  1786. 

  1787.     def loadSettings(self, firstTime):

  1788.         settings = QSafeSettings()

  1789. 

  1790.         if firstTime:

  1791.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1792.             if not geometry.isNull():

  1793.                 self.restoreGeometry(geometry)

  1794. 

  1795.             showToolbar = settings.value("ShowToolbar", True, bool)

  1796.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

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

  1798.             self.ui.toolBar.setVisible(showToolbar)

  1799. 

  1800.             #if settings.contains("SplitterState"):

  1801.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1802.             #else:

  1803.                 #self.ui.splitter.setSizes([210, 99999])

  1804. 

  1805.             showSidePanel = settings.value("ShowSidePanel", True, bool) and not self.host.isControl

  1806.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1807.             self.slot_showSidePanel(showSidePanel)

  1808. 

  1809.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1810. 

  1811.             self.ui.cb_disk.setItemData(0, HOME)

  1812. 

  1813.             for i in range(len(diskFolders)):

  1814.                 if i == 0: continue

  1815.                 folder = diskFolders[i]

  1816.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1817. 

  1818.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1819.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1820. 

  1821.             showMeters = settings.value("ShowMeters", True, bool)

  1822.             self.ui.act_settings_show_meters.setChecked(showMeters)

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

  1824.             self.ui.peak_out.setVisible(showMeters)

  1825. 

  1826.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1827.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1828.             self.ui.scrollArea.setVisible(showKeyboard)

  1829. 

  1830.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1831.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1832. 

  1833.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1834. 

  1835.         # TODO - complete this

  1836. 

  1837.         self.fSavedSettings = {

  1838.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1839.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1840.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1841.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1842.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1843.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1844.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1845.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1846.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1847.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1848.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1849.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1850.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1851.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1852.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1853.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1854.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1855.         }

  1856. 

  1857.         if not self.host.isControl:

  1858.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1859.         else:

  1860.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1861. 

  1862.         settings2 = QSafeSettings("falkTX", "Carla2")

  1863. 

  1864.         if self.host.experimental:

  1865.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1866.             self.ui.act_plugin_add_jack.setVisible(visible)

  1867.         else:

  1868.             self.ui.act_plugin_add_jack.setVisible(False)

  1869. 

  1870.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1871. 

  1872.         setEngineSettings(self.host)

  1873.         self.restartTimersIfNeeded()

  1874. 

  1875.         return settings

  1876. 

  1877.     # --------------------------------------------------------------------------------------------------------

  1878.     # Settings (helpers)

  1879. 

  1880.     def enableTransport(self, enabled):

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

  1882.         self.ui.group_transport_settings.setEnabled(enabled)

  1883. 

  1884.     @pyqtSlot()

  1885.     def slot_restoreCanvasScrollbarValues(self):

  1886.         settings = QSafeSettings()

  1887.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1888.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1889.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  1890.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  1891. 

  1892.     # --------------------------------------------------------------------------------------------------------

  1893.     # Settings (menu actions)

  1894. 

  1895.     @pyqtSlot(bool)

  1896.     def slot_showSidePanel(self, yesNo):

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

  1898.         self.ui.dockWidget.setVisible(yesNo)

  1899. 

  1900.     @pyqtSlot(bool)

  1901.     def slot_showToolbar(self, yesNo):

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

  1903.         self.ui.toolBar.setVisible(yesNo)

  1904. 

  1905.     @pyqtSlot(bool)

  1906.     def slot_showCanvasMeters(self, yesNo):

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

  1908.         self.ui.peak_out.setVisible(yesNo)

  1909.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1910. 

  1911.     @pyqtSlot(bool)

  1912.     def slot_showCanvasKeyboard(self, yesNo):

  1913.         self.ui.scrollArea.setVisible(yesNo)

  1914.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1915. 

  1916.     @pyqtSlot()

  1917.     def slot_configureCarla(self):

  1918.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1919.         if not dialog.exec_():

  1920.             return

  1921. 

  1922.         self.loadSettings(False)

  1923. 

  1924.         patchcanvas.clear()

  1925. 

  1926.         self.setupCanvas()

  1927.         self.slot_miniCanvasCheckAll()

  1928. 

  1929.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1930.             pass

  1931.         elif self.host.is_engine_running():

  1932.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1933. 

  1934.     # --------------------------------------------------------------------------------------------------------

  1935.     # About (menu actions)

  1936. 

  1937.     @pyqtSlot()

  1938.     def slot_aboutCarla(self):

  1939.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1940. 

  1941.     @pyqtSlot()

  1942.     def slot_aboutJuce(self):

  1943.         JuceAboutW(self.fParentOrSelf).exec_()

  1944. 

  1945.     @pyqtSlot()

  1946.     def slot_aboutQt(self):

  1947.         QApplication.instance().aboutQt()

  1948. 

  1949.     # --------------------------------------------------------------------------------------------------------

  1950.     # Disk (menu actions)

  1951. 

  1952.     @pyqtSlot(int)

  1953.     def slot_diskFolderChanged(self, index):

  1954.         if index < 0:

  1955.             return

  1956.         elif index == 0:

  1957.             filename = HOME

  1958.             self.ui.b_disk_remove.setEnabled(False)

  1959.         else:

  1960.             filename = self.ui.cb_disk.itemData(index)

  1961.             self.ui.b_disk_remove.setEnabled(True)

  1962. 

  1963.         self.fDirModel.setRootPath(filename)

  1964.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1965. 

  1966.     @pyqtSlot()

  1967.     def slot_diskFolderAdd(self):

  1968.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1969. 

  1970.         if newPath:

  1971.             if newPath[-1] == os.sep:

  1972.                 newPath = newPath[:-1]

  1973.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1974.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

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

  1976. 

  1977.     @pyqtSlot()

  1978.     def slot_diskFolderRemove(self):

  1979.         index = self.ui.cb_disk.currentIndex()

  1980. 

  1981.         if index <= 0:

  1982.             return

  1983. 

  1984.         self.ui.cb_disk.removeItem(index)

  1985. 

  1986.         if self.ui.cb_disk.currentIndex() == 0:

  1987.             self.ui.b_disk_remove.setEnabled(False)

  1988. 

  1989.     @pyqtSlot(QModelIndex)

  1990.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1991.         filename = self.fDirModel.filePath(modelIndex)

  1992. 

  1993.         if not self.ui.listWidget.isDragUrlValid(filename):

  1994.             return

  1995. 

  1996.         if not self.host.load_file(filename):

  1997.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1998.                              self.tr("Failed to load file"),

  1999.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2000. 

  2001.     # --------------------------------------------------------------------------------------------------------

  2002.     # Transport

  2003. 

  2004.     def refreshTransport(self, forced = False):

  2005.         if not self.ui.l_transport_time.isVisible():

  2006.             return

  2007.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2008.             return

  2009. 

  2010.         timeInfo = self.host.get_transport_info()

  2011.         playing  = timeInfo['playing']

  2012.         frame    = timeInfo['frame']

  2013.         bpm      = timeInfo['bpm']

  2014. 

  2015.         if playing != self.fLastTransportState or forced:

  2016.             if playing:

  2017.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  2018.                 self.ui.b_transport_play.setChecked(True)

  2019.                 self.ui.b_transport_play.setIcon(icon)

  2020.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2021.             else:

  2022.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  2023.                 self.ui.b_transport_play.setChecked(False)

  2024.                 self.ui.b_transport_play.setIcon(icon)

  2025.                 #self.ui.b_play.setText(self.tr("&Play"))

  2026. 

  2027.             self.fLastTransportState = playing

  2028. 

  2029.         if frame != self.fLastTransportFrame or forced:

  2030.             self.fLastTransportFrame = frame

  2031. 

  2032.             time = frame / self.fSampleRate

  2033.             secs =  time % 60

  2034.             mins = (time / 60) % 60

  2035.             hrs  = (time / 3600) % 60

  2036.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2037. 

  2038.             frame1 =  frame % 1000

  2039.             frame2 = (frame / 1000) % 1000

  2040.             frame3 = (frame / 1000000) % 1000

  2041.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2042. 

  2043.             bar  = timeInfo['bar']

  2044.             beat = timeInfo['beat']

  2045.             tick = timeInfo['tick']

  2046.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2047. 

  2048.         if bpm != self.fLastTransportBPM or forced:

  2049.             self.fLastTransportBPM = bpm

  2050. 

  2051.             if bpm > 0.0:

  2052.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2053.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2054.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2055.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2056.             else:

  2057.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2058. 

  2059.     # --------------------------------------------------------------------------------------------------------

  2060.     # Transport (menu actions)

  2061. 

  2062.     @pyqtSlot(bool)

  2063.     def slot_transportPlayPause(self, toggled):

  2064.         if self.host.isPlugin or not self.host.is_engine_running():

  2065.             return

  2066. 

  2067.         if toggled:

  2068.             self.host.transport_play()

  2069.         else:

  2070.             self.host.transport_pause()

  2071. 

  2072.         self.refreshTransport()

  2073. 

  2074.     @pyqtSlot()

  2075.     def slot_transportStop(self):

  2076.         if self.host.isPlugin or not self.host.is_engine_running():

  2077.             return

  2078. 

  2079.         self.host.transport_pause()

  2080.         self.host.transport_relocate(0)

  2081. 

  2082.         self.refreshTransport()

  2083. 

  2084.     @pyqtSlot()

  2085.     def slot_transportBackwards(self):

  2086.         if self.host.isPlugin or not self.host.is_engine_running():

  2087.             return

  2088. 

  2089.         newFrame = self.host.get_current_transport_frame() - 100000

  2090. 

  2091.         if newFrame < 0:

  2092.             newFrame = 0

  2093. 

  2094.         self.host.transport_relocate(newFrame)

  2095. 

  2096.     @pyqtSlot(float)

  2097.     def slot_transportBpmChanged(self, newValue):

  2098.         self.host.transport_bpm(newValue)

  2099. 

  2100.     @pyqtSlot()

  2101.     def slot_transportForwards(self):

  2102.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2103.             return

  2104. 

  2105.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2106.         self.host.transport_relocate(newFrame)

  2107. 

  2108.     @pyqtSlot(bool)

  2109.     def slot_transportJackEnabled(self, clicked):

  2110.         if not self.host.is_engine_running():

  2111.             return

  2112.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2113.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2114.                                     self.host.transportMode,

  2115.                                     self.host.transportExtra)

  2116. 

  2117.     @pyqtSlot(bool)

  2118.     def slot_transportLinkEnabled(self, clicked):

  2119.         if not self.host.is_engine_running():

  2120.             return

  2121.         extra = ":link:" if clicked else ""

  2122.         self.host.transportExtra = extra

  2123.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2124.                                     self.host.transportMode,

  2125.                                     self.host.transportExtra)

  2126. 

  2127.     # --------------------------------------------------------------------------------------------------------

  2128.     # Other

  2129. 

  2130.     @pyqtSlot(bool)

  2131.     def slot_xrunClear(self):

  2132.         self.host.clear_engine_xruns()

  2133. 

  2134.     # --------------------------------------------------------------------------------------------------------

  2135.     # Canvas scrollbars

  2136. 

  2137.     @pyqtSlot(int)

  2138.     def slot_horizontalScrollBarChanged(self, value):

  2139.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2140.         if maximum == 0:

  2141.             xp = 0

  2142.         else:

  2143.             xp = float(value) / maximum

  2144.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2145.         self.updateCanvasInitialPos()

  2146. 

  2147.     @pyqtSlot(int)

  2148.     def slot_verticalScrollBarChanged(self, value):

  2149.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2150.         if maximum == 0:

  2151.             yp = 0

  2152.         else:

  2153.             yp = float(value) / maximum

  2154.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2155.         self.updateCanvasInitialPos()

  2156. 

  2157.     # --------------------------------------------------------------------------------------------------------

  2158.     # Canvas keyboard

  2159. 

  2160.     @pyqtSlot(int)

  2161.     def slot_noteOn(self, note):

  2162.         for pluginId in self.fSelectedPlugins:

  2163.             self.host.send_midi_note(pluginId, 0, note, 100)

  2164. 

  2165.             pedit = self.getPluginEditDialog(pluginId)

  2166.             pedit.noteOn(0, note, 100)

  2167. 

  2168.     @pyqtSlot(int)

  2169.     def slot_noteOff(self, note):

  2170.         for pluginId in self.fSelectedPlugins:

  2171.             self.host.send_midi_note(pluginId, 0, note, 0)

  2172. 

  2173.             pedit = self.getPluginEditDialog(pluginId)

  2174.             pedit.noteOff(0, note)

  2175. 

  2176.     # --------------------------------------------------------------------------------------------------------

  2177.     # Canvas keyboard (host callbacks)

  2178. 

  2179.     @pyqtSlot(int, int, int, int)

  2180.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2181.         if pluginId in self.fSelectedPlugins:

  2182.             self.ui.keyboard.sendNoteOn(note, False)

  2183. 

  2184.     @pyqtSlot(int, int, int)

  2185.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2186.         if pluginId in self.fSelectedPlugins:

  2187.             self.ui.keyboard.sendNoteOff(note, False)

  2188. 

  2189.     # --------------------------------------------------------------------------------------------------------

  2190. 

  2191.     @pyqtSlot(int)

  2192.     def slot_handleUpdateCallback(self, pluginId):

  2193.         pitem = self.getPluginItem(pluginId)

  2194. 

  2195.         if pitem is None:

  2196.             return

  2197. 

  2198.         wasCompacted = pitem.isCompacted()

  2199.         isCompacted  = wasCompacted

  2200. 

  2201.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2202.         if not check:

  2203.             return

  2204.         isCompacted = bool(check == "true")

  2205. 

  2206.         if wasCompacted == isCompacted:

  2207.             return

  2208. 

  2209.         pitem.recreateWidget(True)

  2210. 

  2211.     # --------------------------------------------------------------------------------------------------------

  2212.     # MiniCanvas stuff

  2213. 

  2214.     @pyqtSlot()

  2215.     def slot_miniCanvasCheckAll(self):

  2216.         self.slot_miniCanvasCheckSize()

  2217.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2218.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2219. 

  2220.     @pyqtSlot()

  2221.     def slot_miniCanvasCheckSize(self):

  2222.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2223.             return

  2224. 

  2225.         currentIndex = self.ui.tabWidget.currentIndex()

  2226. 

  2227.         if currentIndex == 1:

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

  2229.             height = self.ui.graphicsView.height()

  2230.         else:

  2231.             self.ui.tabWidget.blockSignals(True)

  2232.             self.ui.tabWidget.setCurrentIndex(1)

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

  2234.             height = self.ui.graphicsView.height()

  2235.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2236.             self.ui.tabWidget.blockSignals(False)

  2237. 

  2238.         self.scene.updateLimits()

  2239. 

  2240.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2241. 

  2242.     @pyqtSlot(float, float)

  2243.     def slot_miniCanvasMoved(self, xp, yp):

  2244.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2245.         vsb = self.ui.graphicsView.verticalScrollBar()

  2246.         hsb.setValue(xp * hsb.maximum())

  2247.         vsb.setValue(yp * vsb.maximum())

  2248.         self.updateCanvasInitialPos()

  2249. 

  2250.     # --------------------------------------------------------------------------------------------------------

  2251.     # Logs autoscroll, save and clear

  2252. 

  2253.     @pyqtSlot(int)

  2254.     def slot_toggleLogAutoscroll(self, checkState):

  2255.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2256.         if self.autoscrollOnNewLog:

  2257.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2258. 

  2259.     @pyqtSlot(int)

  2260.     def slot_logSliderMoved(self, slider_pos):

  2261.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2262.             self.lastLogSliderPos = slider_pos

  2263.         else:

  2264.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2265. 

  2266.     @pyqtSlot()

  2267.     def slot_logButtonsState(self, enabled=True):

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

  2269.         self.ui.logs_save.setEnabled(enabled)

  2270. 

  2271.     @pyqtSlot()

  2272.     def slot_logSave(self):

  2273.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2274.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2275. 

  2276.         if not filename:

  2277.             return

  2278. 

  2279.         try:

  2280.             with open(filename, "w") as logfile:

  2281.                 logfile.write(self.ui.text_logs.toPlainText())

  2282.                 logfile.close()

  2283.         except:

  2284.             return

  2285. 

  2286.     @pyqtSlot()

  2287.     def slot_logClear(self):

  2288.         self.ui.text_logs.clear()

  2289.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2290.         self.slot_logButtonsState(False)

  2291. 

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

  2293.     # Timers

  2294. 

  2295.     def startTimers(self):

  2296.         if self.fIdleTimerFast == 0:

  2297.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2298. 

  2299.         if self.fIdleTimerSlow == 0:

  2300.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2301. 

  2302.     def restartTimersIfNeeded(self):

  2303.         if self.fIdleTimerFast != 0:

  2304.             self.killTimer(self.fIdleTimerFast)

  2305.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2306. 

  2307.         if self.fIdleTimerSlow != 0:

  2308.             self.killTimer(self.fIdleTimerSlow)

  2309.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2310. 

  2311.     def killTimers(self):

  2312.         if self.fIdleTimerFast != 0:

  2313.             self.killTimer(self.fIdleTimerFast)

  2314.             self.fIdleTimerFast = 0

  2315. 

  2316.         if self.fIdleTimerSlow != 0:

  2317.             self.killTimer(self.fIdleTimerSlow)

  2318.             self.fIdleTimerSlow = 0

  2319. 

  2320.     # --------------------------------------------------------------------------------------------------------

  2321.     # Misc

  2322. 

  2323.     @pyqtSlot(int)

  2324.     def slot_tabChanged(self, index):

  2325.         if index != 1:

  2326.             return

  2327. 

  2328.         self.ui.graphicsView.setFocus()

  2329. 

  2330.     @pyqtSlot(int)

  2331.     def slot_handleReloadAllCallback(self, pluginId):

  2332.         if pluginId >= self.fPluginCount:

  2333.             return

  2334. 

  2335.         pitem = self.fPluginList[pluginId]

  2336.         if pitem is None:

  2337.             return

  2338. 

  2339.         pitem.recreateWidget()

  2340. 

  2341.     # --------------------------------------------------------------------------------------------------------

  2342. 

  2343.     @pyqtSlot(int, int, str)

  2344.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2345.         if opcode == NSM_CALLBACK_INIT:

  2346.             return

  2347. 

  2348.         # Error

  2349.         elif opcode == NSM_CALLBACK_ERROR:

  2350.             pass

  2351. 

  2352.         # Reply

  2353.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2354.             self.fFirstEngineInit    = False

  2355.             self.fSessionManagerName = valueStr

  2356.             self.setProperWindowTitle()

  2357. 

  2358.         # Open

  2359.         elif opcode == NSM_CALLBACK_OPEN:

  2360.             self.fClientName      = os.path.basename(valueStr)

  2361.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2362.             self.setProperWindowTitle()

  2363. 

  2364.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2365.             self.slot_engineStop(True)

  2366.             return

  2367. 

  2368.         # Save

  2369.         elif opcode == NSM_CALLBACK_SAVE:

  2370.             self.saveProjectNow()

  2371. 

  2372.         # Session is Loaded

  2373.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2374.             pass

  2375. 

  2376.         # Show Optional Gui

  2377.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2378.             self.show()

  2379. 

  2380.         # Hide Optional Gui

  2381.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2382.             self.hide()

  2383. 

  2384.         self.host.nsm_ready(opcode)

  2385. 

  2386.     # --------------------------------------------------------------------------------------------------------

  2387. 

  2388.     def fixLogText(self, text):

  2389.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2390. 

  2391.     @pyqtSlot(int, int, int, int, float, str)

  2392.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2393.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2394. 

  2395.     @pyqtSlot(str)

  2396.     def slot_handleInfoCallback(self, info):

  2397.         QMessageBox.information(self, "Information", info)

  2398. 

  2399.     @pyqtSlot(str)

  2400.     def slot_handleErrorCallback(self, error):

  2401.         QMessageBox.critical(self, "Error", error)

  2402. 

  2403.     @pyqtSlot()

  2404.     def slot_handleQuitCallback(self):

  2405.         self.fIsProjectLoading = False

  2406.         self.killTimers()

  2407.         self.removeAllPlugins()

  2408.         self.projectLoadingFinished()

  2409. 

  2410.     @pyqtSlot(int)

  2411.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2412.         # FIXME

  2413.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2414.             patchcanvas.redrawPluginGroup(pluginId)

  2415. 

  2416.     # --------------------------------------------------------------------------------------------------------

  2417. 

  2418.     @pyqtSlot()

  2419.     def slot_handleSIGUSR1(self):

  2420.         print("Got SIGUSR1 -> Saving project now")

  2421.         self.slot_fileSave()

  2422. 

  2423.     @pyqtSlot()

  2424.     def slot_handleSIGTERM(self):

  2425.         print("Got SIGTERM -> Closing now")

  2426.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2427.         self.slot_engineStop(True)

  2428. 

  2429.     # --------------------------------------------------------------------------------------------------------

  2430.     # Internal stuff

  2431. 

  2432.     def getExtraPtr(self, plugin):

  2433.         ptype = plugin['type']

  2434. 

  2435.         if ptype == PLUGIN_LADSPA:

  2436.             uniqueId = plugin['uniqueId']

  2437. 

  2438.             self.maybeLoadRDFs()

  2439. 

  2440.             for rdfItem in self.fLadspaRdfList:

  2441.                 if rdfItem.UniqueID == uniqueId:

  2442.                     return pointer(rdfItem)

  2443. 

  2444.         elif ptype == PLUGIN_SF2:

  2445.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2446.                 return self._true

  2447. 

  2448.         return None

  2449. 

  2450.     def maybeLoadRDFs(self):

  2451.         if not self.fLadspaRdfNeedsUpdate:

  2452.             return

  2453. 

  2454.         self.fLadspaRdfNeedsUpdate = False

  2455.         self.fLadspaRdfList = []

  2456. 

  2457.         if not haveLRDF:

  2458.             return

  2459. 

  2460.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2461.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2462. 

  2463.         if os.path.exists(frLadspaFile):

  2464.             frLadspa = open(frLadspaFile, 'r')

  2465. 

  2466.             try:

  2467.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2468.             except:

  2469.                 pass

  2470. 

  2471.             frLadspa.close()

  2472. 

  2473.     # --------------------------------------------------------------------------------------------------------

  2474. 

  2475.     def getPluginCount(self):

  2476.         return self.fPluginCount

  2477. 

  2478.     def getPluginItem(self, pluginId):

  2479.         if pluginId >= self.fPluginCount:

  2480.             return None

  2481. 

  2482.         pitem = self.fPluginList[pluginId]

  2483.         if pitem is None:

  2484.             return None

  2485.         #if False:

  2486.             #return CarlaRackItem(self, 0, False)

  2487. 

  2488.         return pitem

  2489. 

  2490.     def getPluginEditDialog(self, pluginId):

  2491.         if pluginId >= self.fPluginCount:

  2492.             return None

  2493. 

  2494.         pitem = self.fPluginList[pluginId]

  2495.         if pitem is None:

  2496.             return None

  2497.         if False:

  2498.             return PluginEdit(self, self.host, 0)

  2499. 

  2500.         return pitem.getEditDialog()

  2501. 

  2502.     def getPluginSlotWidget(self, pluginId):

  2503.         if pluginId >= self.fPluginCount:

  2504.             return None

  2505. 

  2506.         pitem = self.fPluginList[pluginId]

  2507.         if pitem is None:

  2508.             return None

  2509.         #if False:

  2510.             #return AbstractPluginSlot()

  2511. 

  2512.         return pitem.getWidget()

  2513. 

  2514.     # --------------------------------------------------------------------------------------------------------

  2515. 

  2516.     def waitForPendingEvents(self):

  2517.         pass

  2518. 

  2519.     # --------------------------------------------------------------------------------------------------------

  2520.     # show/hide event

  2521. 

  2522.     def showEvent(self, event):

  2523.         self.getAndRefreshRuntimeInfo()

  2524.         self.refreshTransport(True)

  2525.         QMainWindow.showEvent(self, event)

  2526. 

  2527.         if QT_VERSION >= 0x50600:

  2528.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2529.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2530. 

  2531.         # set our gui as parent for all plugins UIs

  2532.         if self.host.manageUIs and not self.host.isControl:

  2533.             if MACOS:

  2534.                 nsViewPtr = int(self.winId())

  2535.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2536.             else:

  2537.                 winIdStr = "%x" % int(self.winId())

  2538.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2539. 

  2540.     def hideEvent(self, event):

  2541.         # disable parent

  2542.         if not self.host.isControl:

  2543.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2544. 

  2545.         QMainWindow.hideEvent(self, event)

  2546. 

  2547.     # --------------------------------------------------------------------------------------------------------

  2548.     # resize event

  2549. 

  2550.     def resizeEvent(self, event):

  2551.         QMainWindow.resizeEvent(self, event)

  2552. 

  2553.         if self.fWithCanvas:

  2554.             self.slot_miniCanvasCheckSize()

  2555. 

  2556.     # --------------------------------------------------------------------------------------------------------

  2557.     # timer event

  2558. 

  2559.     def refreshRuntimeInfo(self, load, xruns):

  2560.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2561.         txt2 = "" if (xruns == 1) else "s"

  2562.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2563.         self.ui.pb_dsp_load.setValue(int(load))

  2564. 

  2565.     def getAndRefreshRuntimeInfo(self):

  2566.         if not self.ui.pb_dsp_load.isVisible():

  2567.             return

  2568.         if not self.host.is_engine_running():

  2569.             return

  2570.         info = self.host.get_runtime_engine_info()

  2571.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2572. 

  2573.     def idleFast(self):

  2574.         self.host.engine_idle()

  2575.         self.refreshTransport()

  2576. 

  2577.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2578.             return

  2579. 

  2580.         for pitem in self.fPluginList:

  2581.             if pitem is None:

  2582.                 break

  2583. 

  2584.             pitem.getWidget().idleFast()

  2585. 

  2586.         for pluginId in self.fSelectedPlugins:

  2587.             self.fPeaksCleared = False

  2588.             if self.ui.peak_in.isVisible():

  2589.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2590.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2591.             if self.ui.peak_out.isVisible():

  2592.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2593.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2594.             return

  2595. 

  2596.         if self.fPeaksCleared:

  2597.             return

  2598. 

  2599.         self.fPeaksCleared = True

  2600.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2601.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2602.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2603.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2604. 

  2605.     def idleSlow(self):

  2606.         self.getAndRefreshRuntimeInfo()

  2607. 

  2608.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2609.             return

  2610. 

  2611.         for pitem in self.fPluginList:

  2612.             if pitem is None:

  2613.                 break

  2614. 

  2615.             pitem.getWidget().idleSlow()

  2616. 

  2617.     def timerEvent(self, event):

  2618.         if event.timerId() == self.fIdleTimerFast:

  2619.             self.idleFast()

  2620. 

  2621.         elif event.timerId() == self.fIdleTimerSlow:

  2622.             self.idleSlow()

  2623. 

  2624.         QMainWindow.timerEvent(self, event)

  2625. 

  2626.     # --------------------------------------------------------------------------------------------------------

  2627.     # color/style change event

  2628. 

  2629.     def changeEvent(self, event):

  2630.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2631.             self.updateStyle()

  2632.         QMainWindow.changeEvent(self, event)

  2633. 

  2634.     def updateStyle(self):

  2635.         # Rack padding images setup

  2636.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2637.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2638. 

  2639.         min_value = 0.07

  2640. 

  2641.         if PYQT_VERSION >= 0x50600:

  2642.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2643.         else:

  2644.             value_fix = 1.5

  2645. 

  2646.         rack_pal = self.ui.rack.palette()

  2647.         bg_color = rack_pal.window().color()

  2648.         fg_color = rack_pal.text().color()

  2649.         bg_value = 1.0 - bg_color.blackF()

  2650.         if bg_value != 0.0 and bg_value < min_value:

  2651.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2652.         else:

  2653.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2654. 

  2655.         painter = QPainter()

  2656.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2657. 

  2658.         painter.begin(rack_imgL)

  2659.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2660.         painter.setBrush(pad_color)

  2661.         painter.drawRect(fillRect)

  2662.         painter.end()

  2663.         rack_pixmapL = QPixmap(rack_imgL)

  2664.         self.imgL_palette = QPalette()

  2665.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2666.         self.ui.pad_left.setPalette(self.imgL_palette)

  2667.         self.ui.pad_left.setAutoFillBackground(True)

  2668. 

  2669.         painter.begin(rack_imgR)

  2670.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2671.         painter.setBrush(pad_color)

  2672.         painter.drawRect(fillRect)

  2673.         painter.end()

  2674.         rack_pixmapR = QPixmap(rack_imgR)

  2675.         self.imgR_palette = QPalette()

  2676.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2677.         self.ui.pad_right.setPalette(self.imgR_palette)

  2678.         self.ui.pad_right.setAutoFillBackground(True)

  2679. 

  2680.         # qt's rgba is actually argb, so convert that

  2681.         bg_color_value = bg_color.rgba()

  2682.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2683. 

  2684.         fg_color_value = fg_color.rgba()

  2685.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2686. 

  2687.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2688.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2689. 

  2690.     # --------------------------------------------------------------------------------------------------------

  2691.     # paint event

  2692. 

  2693.     #def paintEvent(self, event):

  2694.         #QMainWindow.paintEvent(self, event)

  2695. 

  2696.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2697.             #return

  2698. 

  2699.         #painter = QPainter(self)

  2700.         #painter.setBrush(QColor(36, 36, 36))

  2701.         #painter.setPen(QColor(62, 62, 62))

  2702.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2703. 

  2704.     # --------------------------------------------------------------------------------------------------------

  2705.     # close event

  2706. 

  2707.     def shouldIgnoreClose(self):

  2708.         if self.host.isControl or self.host.isPlugin:

  2709.             return False

  2710.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2711.             return False

  2712.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2713.             return QMessageBox.question(self, self.tr("Quit"),

  2714.                                               self.tr("Are you sure you want to quit Carla?"),

  2715.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2716.         return False

  2717. 

  2718.     def closeEvent(self, event):

  2719.         if self.shouldIgnoreClose():

  2720.             event.ignore()

  2721.             return

  2722. 

  2723.         patchcanvas.handleAllPluginsRemoved()

  2724. 

  2725.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2726.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2727.             self.fMacClosingHelper = False

  2728.             event.ignore()

  2729. 

  2730.             for i in reversed(range(self.fPluginCount)):

  2731.                 self.host.show_custom_ui(i, False)

  2732. 

  2733.             QTimer.singleShot(100, self.close)

  2734.             return

  2735. 

  2736.         self.killTimers()

  2737.         self.saveSettings()

  2738. 

  2739.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2740.             if not self.slot_engineStop(True):

  2741.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2742.                 event.ignore()

  2743.                 return

  2744. 

  2745.         QMainWindow.closeEvent(self, event)

  2746. 

  2747. # ------------------------------------------------------------------------------------------------

  2748. # Canvas callback

  2749. 

  2750. def canvasCallback(action, value1, value2, valueStr):

  2751.     host = gCarla.gui.host

  2752. 

  2753.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2754.         return

  2755. 

  2756.     if action == patchcanvas.ACTION_GROUP_INFO:

  2757.         pass

  2758. 

  2759.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2760.         pass

  2761. 

  2762.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2763.         groupId = value1

  2764.         patchcanvas.splitGroup(groupId)

  2765.         gCarla.gui.updateMiniCanvasLater()

  2766. 

  2767.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2768.         groupId = value1

  2769.         patchcanvas.joinGroup(groupId)

  2770.         gCarla.gui.updateMiniCanvasLater()

  2771. 

  2772.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2773.         if gCarla.gui.fIsProjectLoading:

  2774.             return

  2775.         if not host.is_engine_running():

  2776.             return

  2777.         groupId = value1

  2778.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2779.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2780.         gCarla.gui.updateMiniCanvasLater()

  2781. 

  2782.     elif action == patchcanvas.ACTION_PORT_INFO:

  2783.         pass

  2784. 

  2785.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2786.         pass

  2787. 

  2788.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2789.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2790. 

  2791.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2792.             print("Connection failed:", host.get_last_error())

  2793. 

  2794.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2795.         connectionId = value1

  2796. 

  2797.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2798.             print("Disconnect failed:", host.get_last_error())

  2799. 

  2800.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2801.         pluginId = value1

  2802. 

  2803.         if not host.clone_plugin(pluginId):

  2804.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2805.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2806. 

  2807.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2808.         pluginId = value1

  2809.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2810. 

  2811.         if pwidget is not None:

  2812.             pwidget.showEditDialog()

  2813. 

  2814.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2815.         pluginId = value1

  2816.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2817. 

  2818.         if pwidget is not None:

  2819.             pwidget.showRenameDialog()

  2820. 

  2821.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2822.         pluginId = value1

  2823.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2824. 

  2825.         if pwidget is not None:

  2826.             pwidget.showReplaceDialog()

  2827. 

  2828.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2829.         pluginId = value1

  2830. 

  2831.         if not host.remove_plugin(pluginId):

  2832.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2833.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2834. 

  2835.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2836.         pluginId = value1

  2837.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2838. 

  2839.         if pwidget is not None:

  2840.             pwidget.showCustomUI()

  2841. 

  2842.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2843.         gCarla.gui.slot_showPluginActionsMenu()

  2844. 

  2845.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2846.         if gCarla.gui.fIsProjectLoading:

  2847.             return

  2848.         if not host.is_engine_running():

  2849.             return

  2850.         pluginId = value1

  2851.         width, height = [int(v) for v in valueStr.split(":")]

  2852.         return host.render_inline_display(pluginId, width, height)

  2853. 

  2854. # ------------------------------------------------------------------------------------------------------------

  2855. # Engine callback

  2856. 

  2857. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2858.     # kdevelop likes this :)

  2859.     if False: host = CarlaHostNull()

  2860. 

  2861.     valueStr = charPtrToString(valueStr)

  2862. 

  2863.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2864.         host.processMode   = value1

  2865.         host.transportMode = value2

  2866.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2867.         host.processMode   = value1

  2868.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2869.         host.transportMode  = value1

  2870.         host.transportExtra = valueStr

  2871. 

  2872.     if action == ENGINE_CALLBACK_DEBUG:

  2873.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2874.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2875.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2876.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2877.         host.PluginRemovedCallback.emit(pluginId)

  2878.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2879.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2880.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2881.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2882.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2883.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2884.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2885.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2886.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  2887.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  2888.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  2889.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  2890.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  2891.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2892.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2893.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2894.         host.ProgramChangedCallback.emit(pluginId, value1)

  2895.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2896.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2897.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2898.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2899.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2900.         host.UiStateChangedCallback.emit(pluginId, value1)

  2901.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2902.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2903.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2904.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2905.     elif action == ENGINE_CALLBACK_UPDATE:

  2906.         host.UpdateCallback.emit(pluginId)

  2907.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2908.         host.ReloadInfoCallback.emit(pluginId)

  2909.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2910.         host.ReloadParametersCallback.emit(pluginId)

  2911.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2912.         host.ReloadProgramsCallback.emit(pluginId)

  2913.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2914.         host.ReloadAllCallback.emit(pluginId)

  2915.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2916.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2917.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2918.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2919.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2920.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2921.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2922.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2923.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  2924.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  2925.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2926.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2927.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2928.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2929.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2930.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2931.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2932.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2933.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2934.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2935.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2936.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2937.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2938.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2939.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2940.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2941.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2942.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2943.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2944.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2945.         host.EngineStoppedCallback.emit()

  2946.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2947.         host.ProcessModeChangedCallback.emit(value1)

  2948.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2949.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2950.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2951.         host.BufferSizeChangedCallback.emit(value1)

  2952.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2953.         host.SampleRateChangedCallback.emit(valuef)

  2954.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2955.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2956.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2957.         host.ProjectLoadFinishedCallback.emit()

  2958.     elif action == ENGINE_CALLBACK_NSM:

  2959.         host.NSMCallback.emit(value1, value2, valueStr)

  2960.     elif action == ENGINE_CALLBACK_IDLE:

  2961.         QApplication.processEvents()

  2962.     elif action == ENGINE_CALLBACK_INFO:

  2963.         host.InfoCallback.emit(valueStr)

  2964.     elif action == ENGINE_CALLBACK_ERROR:

  2965.         host.ErrorCallback.emit(valueStr)

  2966.     elif action == ENGINE_CALLBACK_QUIT:

  2967.         host.QuitCallback.emit()

  2968.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2969.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2970.     else:

  2971.         print("unhandled action", action)

  2972. 

  2973. # ------------------------------------------------------------------------------------------------------------

  2974. # File callback

  2975. 

  2976. def fileCallback(ptr, action, isDir, title, filter):

  2977.     title  = charPtrToString(title)

  2978.     filter = charPtrToString(filter)

  2979. 

  2980.     if action == FILE_CALLBACK_OPEN:

  2981.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2982.     elif action == FILE_CALLBACK_SAVE:

  2983.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2984.     else:

  2985.         ret, ok = ("", "")

  2986. 

  2987.     # FIXME use ok value, test if it works as expected

  2988.     if not ret:

  2989.         return None

  2990. 

  2991.     # FIXME

  2992.     global fileRet

  2993.     fileRet = c_char_p(ret.encode("utf-8"))

  2994.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2995.     return retval.contents.value

  2996. 

  2997. # ------------------------------------------------------------------------------------------------------------

  2998. # Init host

  2999. 

  3000. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3001.     pathBinaries, pathResources = getPaths(libPrefix)

  3002. 

  3003.     # --------------------------------------------------------------------------------------------------------

  3004.     # Fail if binary dir is not found

  3005. 

  3006.     if not os.path.exists(pathBinaries):

  3007.         if failError:

  3008.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3009.             sys.exit(1)

  3010.         return

  3011. 

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

  3013.     # Check if we should open main lib as local or global

  3014. 

  3015.     settings = QSafeSettings("falkTX", "Carla2")

  3016. 

  3017.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3018. 

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

  3020.     # Set Carla library name

  3021. 

  3022.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3023.     libname   = os.path.join(pathBinaries, libname)

  3024.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3025. 

  3026.     # --------------------------------------------------------------------------------------------------------

  3027.     # Print info

  3028. 

  3029.     print("Carla %s started, status:" % VERSION)

  3030.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  3031.     print("  Qt version:     %s" % QT_VERSION_STR)

  3032.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3033.     print("  Binary dir:     %s" % pathBinaries)

  3034.     print("  Resources dir:  %s" % pathResources)

  3035. 

  3036.     # --------------------------------------------------------------------------------------------------------

  3037.     # Init host

  3038. 

  3039.     if failError:

  3040.         # no try

  3041.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3042.     else:

  3043.         try:

  3044.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3045.         except:

  3046.             host = CarlaHostQtNull()

  3047. 

  3048.     host.isControl = isControl

  3049.     host.isPlugin  = isPlugin

  3050. 

  3051.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3052.     host.set_file_callback(fileCallback)

  3053. 

  3054.     # If it's a plugin the paths are already set

  3055.     if not isPlugin:

  3056.         host.pathBinaries  = pathBinaries

  3057.         host.pathResources = pathResources

  3058.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3059.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3060. 

  3061.         if not isControl:

  3062.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3063. 

  3064.     # --------------------------------------------------------------------------------------------------------

  3065.     # Init utils

  3066. 

  3067.     gCarla.utils = CarlaUtils(utilsname)

  3068.     gCarla.utils.set_process_name(os.path.basename(initName))

  3069. 

  3070.     try:

  3071.         sys.stdout.flush()

  3072.     except:

  3073.         pass

  3074. 

  3075.     sys.stdout = CarlaPrint(False)

  3076.     sys.stderr = CarlaPrint(True)

  3077.     sys.excepthook = sys_excepthook

  3078. 

  3079.     # --------------------------------------------------------------------------------------------------------

  3080.     # Done

  3081. 

  3082.     return host

  3083. 

  3084. # ------------------------------------------------------------------------------------------------------------

  3085. # Load host settings

  3086. 

  3087. def loadHostSettings(host):

  3088.     # kdevelop likes this :)

  3089.     if False: host = CarlaHostNull()

  3090. 

  3091.     settings = QSafeSettings("falkTX", "Carla2")

  3092. 

  3093.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3094.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3095.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3096.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3097.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3098.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3099.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3100.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3101.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3102.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool)

  3103.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3104.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3105.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3106.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3107. 

  3108.     if host.isPlugin:

  3109.         return

  3110. 

  3111.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3112. 

  3113.     # enums

  3114.     if host.audioDriverForced is None:

  3115.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3116. 

  3117.     if not host.processModeForced:

  3118.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3119. 

  3120.     host.nextProcessMode = host.processMode

  3121. 

  3122.     # --------------------------------------------------------------------------------------------------------

  3123.     # fix things if needed

  3124. 

  3125.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3126.         if LADISH_APP_NAME:

  3127.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3128.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3129. 

  3130.         else:

  3131.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3132. 

  3133.     if gCarla.nogui:

  3134.         host.showLogs = False

  3135. 

  3136.     # --------------------------------------------------------------------------------------------------------

  3137.     # run headless host now if nogui option enabled

  3138. 

  3139.     if gCarla.nogui:

  3140.         runHostWithoutUI(host)

  3141. 

  3142. # ------------------------------------------------------------------------------------------------------------

  3143. # Set host settings

  3144. 

  3145. def setHostSettings(host):

  3146.     # kdevelop likes this :)

  3147.     if False: host = CarlaHostNull()

  3148. 

  3149.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3150.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3151.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3152.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3153.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3154.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3155.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3156.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3157. 

  3158.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3159.         return

  3160. 

  3161.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3162.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3163.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3164. 

  3165. # ------------------------------------------------------------------------------------------------------------

  3166. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3167. 

  3168. def setEngineSettings(host):

  3169.     # kdevelop likes this :)

  3170.     if False: host = CarlaHostNull()

  3171. 

  3172.     # --------------------------------------------------------------------------------------------------------

  3173.     # do nothing if control

  3174. 

  3175.     if host.isControl:

  3176.         return "Control"

  3177. 

  3178.     # --------------------------------------------------------------------------------------------------------

  3179. 

  3180.     settings = QSafeSettings("falkTX", "Carla2")

  3181. 

  3182.     # --------------------------------------------------------------------------------------------------------

  3183.     # main settings

  3184. 

  3185.     setHostSettings(host)

  3186. 

  3187.     # --------------------------------------------------------------------------------------------------------

  3188.     # file paths

  3189. 

  3190.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3191.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3192. 

  3193.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3194.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3195. 

  3196.     # --------------------------------------------------------------------------------------------------------

  3197.     # plugin paths

  3198. 

  3199.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3200.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3201.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3202.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3203.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3204.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3205.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3206. 

  3207.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3208.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3209.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3210.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3211.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3212.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3213.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3214. 

  3215.     # --------------------------------------------------------------------------------------------------------

  3216.     # don't continue if plugin

  3217. 

  3218.     if host.isPlugin:

  3219.         return "Plugin"

  3220. 

  3221.     # --------------------------------------------------------------------------------------------------------

  3222.     # osc settings

  3223. 

  3224.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3225. 

  3226.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3227.         portNumTCP = -1

  3228.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3229.         portNumTCP = 0

  3230.     else:

  3231.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3232. 

  3233.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3234.         portNumUDP = -1

  3235.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3236.         portNumUDP = 0

  3237.     else:

  3238.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3239. 

  3240.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3241.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3242.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3243. 

  3244.     # --------------------------------------------------------------------------------------------------------

  3245.     # wine settings

  3246. 

  3247.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3248.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3249.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3250.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3251.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3252.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3253. 

  3254.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3255.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3256.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3257.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3258.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3259.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3260. 

  3261.     # --------------------------------------------------------------------------------------------------------

  3262.     # driver and device settings

  3263. 

  3264.     # driver name

  3265.     if host.audioDriverForced is not None:

  3266.         audioDriver = host.audioDriverForced

  3267.     else:

  3268.         try:

  3269.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3270.         except:

  3271.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3272. 

  3273.     # driver options

  3274.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3275.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3276.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3277.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3278. 

  3279.     # Only setup audio things if engine is not running

  3280.     if not host.is_engine_running():

  3281.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3282.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3283. 

  3284.         if not audioDriver.startswith("JACK"):

  3285.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3286.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3287.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3288. 

  3289.     # --------------------------------------------------------------------------------------------------------

  3290.     # fix things if needed

  3291. 

  3292.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3293.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3294.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3295. 

  3296.     # --------------------------------------------------------------------------------------------------------

  3297.     # return selected driver name

  3298. 

  3299.     return audioDriver

  3300. 

  3301. # ------------------------------------------------------------------------------------------------------------

  3302. # Run Carla without showing UI

  3303. 

  3304. def runHostWithoutUI(host):

  3305.     # kdevelop likes this :)

  3306.     if False: host = CarlaHostNull()

  3307. 

  3308.     # --------------------------------------------------------------------------------------------------------

  3309.     # Some initial checks

  3310. 

  3311.     if not gCarla.nogui:

  3312.         return

  3313. 

  3314.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3315. 

  3316.     if not projectFile:

  3317.         print("Carla no-gui mode can only be used together with a project file.")

  3318.         sys.exit(1)

  3319. 

  3320.     # --------------------------------------------------------------------------------------------------------

  3321.     # Additional imports

  3322. 

  3323.     from time import sleep

  3324. 

  3325.     # --------------------------------------------------------------------------------------------------------

  3326.     # Init engine

  3327. 

  3328.     audioDriver = setEngineSettings(host)

  3329.     if not host.engine_init(audioDriver, "Carla"):

  3330.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3331.         sys.exit(1)

  3332. 

  3333.     if not host.load_project(projectFile):

  3334.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3335.         host.engine_close()

  3336.         sys.exit(1)

  3337. 

  3338.     # --------------------------------------------------------------------------------------------------------

  3339.     # Idle

  3340. 

  3341.     print("Carla ready!")

  3342. 

  3343.     while host.is_engine_running() and not gCarla.term:

  3344.         host.engine_idle()

  3345.         sleep(0.0333) # 30 Hz

  3346. 

  3347.     # --------------------------------------------------------------------------------------------------------

  3348.     # Stop

  3349. 

  3350.     host.engine_close()

  3351.     sys.exit(0)

  3352. 

  3353. # ------------------------------------------------------------------------------------------------------------