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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

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

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

  24. # 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, 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.fExportImage = QImage()

  196. 

  197.         self.fPeaksCleared = True

  198. 

  199.         self.fExternalPatchbay = False

  200.         self.fSelectedPlugins  = []

  201. 

  202.         self.fCanvasWidth  = 0

  203.         self.fCanvasHeight = 0

  204.         self.fMiniCanvasUpdateTimeout = 0

  205. 

  206.         self.fWithCanvas = withCanvas

  207. 

  208.         # ----------------------------------------------------------------------------------------------------

  209.         # Set up GUI (engine stopped)

  210. 

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

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

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

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

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

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

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

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

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

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

  221. 

  222.             if self.host.isControl:

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

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

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

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

  227.             else:

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

  229. 

  230.                 if not withCanvas:

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

  232. 

  233.         else:

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

  235. 

  236.             if WINDOWS:

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

  238. 

  239.         if self.host.isControl:

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

  241.         else:

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

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

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

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

  246. 

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

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

  249. 

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

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

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

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

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

  255. 

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

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

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

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

  260. 

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

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

  263. 

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

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

  266. 

  267.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  285.             self.ui.tw_miniCanvas.hide()

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

  287.             if WINDOWS:

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

  289. 

  290.         # ----------------------------------------------------------------------------------------------------

  291.         # Set up GUI (disk)

  292. 

  293.         exts = gCarla.utils.get_supported_file_extensions()

  294. 

  295.         self.fDirModel = QFileSystemModel(self)

  296.         self.fDirModel.setRootPath(HOME)

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

  298. 

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

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

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

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

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

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

  305. 

  306.         # ----------------------------------------------------------------------------------------------------

  307.         # Set up GUI (transport)

  308. 

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

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

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

  312. 

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

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

  315. 

  316.         if minLabelWidth < labelTimeWidth:

  317.             minLabelWidth = labelTimeWidth

  318.         if minLabelWidth < labelBBTWidth:

  319.             minLabelWidth = labelBBTWidth

  320. 

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

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

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

  324. 

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

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

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

  328. 

  329.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  342. 

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

  344. 

  345.         # ----------------------------------------------------------------------------------------------------

  346.         # Set up GUI (rack)

  347. 

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

  349. 

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

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

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

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

  354. 

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

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

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

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

  359. 

  360.         self.updateStyle()

  361. 

  362.         self.ui.rack.setStyleSheet("""

  363.           CarlaRackList#CarlaRackList {

  364.             background-color: black;

  365.           }

  366.         """)

  367. 

  368.         # ----------------------------------------------------------------------------------------------------

  369.         # Set up GUI (patchbay)

  370. 

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

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

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

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

  375. 

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

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

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

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

  380. 

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

  382.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  384. 

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

  386. 

  387.         self.ui.miniCanvasPreview.setRealParent(self)

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

  389. 

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

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

  392. 

  393.         if MACOS:

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

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

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

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

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

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

  400. 

  401.         # ----------------------------------------------------------------------------------------------------

  402.         # Load Settings

  403. 

  404.         self.loadSettings(True)

  405. 

  406.         # ----------------------------------------------------------------------------------------------------

  407.         # Set-up Canvas

  408. 

  409.         if withCanvas:

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

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

  412. 

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

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

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

  416. 

  417.             self.setupCanvas()

  418. 

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

  420.         # Connect actions to functions

  421. 

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

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

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

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

  426. 

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

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

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

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

  431. 

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

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

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

  435. 

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

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

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

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

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

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

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

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

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

  445. 

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

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

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

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

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

  451. 

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

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

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

  455. 

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

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

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

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

  460. 

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

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

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

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

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

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

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

  468. 

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

  470. 

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

  472. 

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

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

  475. 

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

  477. 

  478.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  496. 

  497.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  498.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  499. 

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

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

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

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

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

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

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

  507. 

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

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

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

  511. 

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

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

  514. 

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

  516. 

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

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

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

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

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

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

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

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

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

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

  527. 

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

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

  530. 

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

  532. 

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

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

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

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

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

  538. 

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

  540.         # Final setup

  541. 

  542.         self.ui.text_logs.clear()

  543.         self.setProperWindowTitle()

  544. 

  545.         # Disable non-supported features

  546.         features = gCarla.utils.get_supported_features()

  547. 

  548.         if "link" not in features:

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

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

  551. 

  552.         if "juce" not in features:

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

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

  555. 

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

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

  558.             self.startTimers()

  559. 

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

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

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

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

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

  565. 

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

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

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

  569. 

  570.         # Load initial project file if set

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

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

  573. 

  574.             if projectFile:

  575.                 self.loadProjectLater(projectFile)

  576. 

  577.         # For NSM we wait for the open message

  578.         if NSM_URL and host.nsmOK:

  579.             host.nsm_ready(NSM_CALLBACK_INIT)

  580.             return

  581. 

  582.         if not host.isControl:

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

  584. 

  585.     # --------------------------------------------------------------------------------------------------------

  586.     # Setup

  587. 

  588.     def compactPlugin(self, pluginId):

  589.         if pluginId > self.fPluginCount:

  590.             return

  591. 

  592.         pitem = self.fPluginList[pluginId]

  593. 

  594.         if pitem is None:

  595.             return

  596. 

  597.         pitem.recreateWidget(True)

  598. 

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

  600.         if pluginId > self.fPluginCount:

  601.             return

  602. 

  603.         pitem = self.fPluginList[pluginId]

  604. 

  605.         if pitem is None:

  606.             return

  607. 

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

  609.         pitem.recreateWidget(newColor = color)

  610. 

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

  612.         if pluginId > self.fPluginCount:

  613.             return

  614. 

  615.         pitem = self.fPluginList[pluginId]

  616. 

  617.         if pitem is None:

  618.             return

  619. 

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

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

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

  623.         else:

  624.             pitem.recreateWidget(newSkin = skin)

  625. 

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

  627.         if pluginIdA == pluginIdB:

  628.             return

  629.         if pluginIdA < 0 or pluginIdB < 0:

  630.             return

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

  632.             return

  633. 

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

  635. 

  636.         itemA = self.fPluginList[pluginIdA]

  637.         compactA = itemA.isCompacted()

  638.         guiShownA = itemA.isGuiShown()

  639. 

  640.         itemB = self.fPluginList[pluginIdB]

  641.         compactB = itemB.isCompacted()

  642.         guiShownB = itemB.isGuiShown()

  643. 

  644.         itemA.setPluginId(pluginIdA)

  645.         itemA.recreateWidget2(compactB, guiShownB)

  646. 

  647.         itemB.setPluginId(pluginIdB)

  648.         itemB.recreateWidget2(compactA, guiShownA)

  649. 

  650.         if self.fWithCanvas:

  651.             self.slot_canvasRefresh()

  652. 

  653.     def setLoadRDFsNeeded(self):

  654.         self.fLadspaRdfNeedsUpdate = True

  655. 

  656.     def setProperWindowTitle(self):

  657.         title = self.fClientName

  658. 

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

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

  661.         if self.fSessionManagerName:

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

  663. 

  664.         self.setWindowTitle(title)

  665. 

  666.     def updateBufferSize(self, newBufferSize):

  667.         if self.fBufferSize == newBufferSize:

  668.             return

  669.         self.fBufferSize = newBufferSize

  670.         self.ui.cb_buffer_size.clear()

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

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

  673. 

  674.     def updateSampleRate(self, newSampleRate):

  675.         if self.fSampleRate == newSampleRate:

  676.             return

  677.         self.fSampleRate = newSampleRate

  678.         self.ui.cb_sample_rate.clear()

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

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

  681.         self.refreshTransport(True)

  682. 

  683.     # --------------------------------------------------------------------------------------------------------

  684.     # Files

  685. 

  686.     def makeExtraFilename(self):

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

  688. 

  689.     def loadProjectNow(self):

  690.         if not self.fProjectFilename:

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

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

  693.             return

  694. 

  695.         self.projectLoadingStarted()

  696.         self.fIsProjectLoading = True

  697. 

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

  699.             self.fIsProjectLoading = False

  700.             self.projectLoadingFinished()

  701. 

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

  703.                              self.host.get_last_error(),

  704.                              QMessageBox.Ok, QMessageBox.Ok)

  705. 

  706.     def loadProjectLater(self, filename):

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

  708.         self.setProperWindowTitle()

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

  710. 

  711.     def saveProjectNow(self):

  712.         if not self.fProjectFilename:

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

  714. 

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

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

  717.                              self.host.get_last_error(),

  718.                              QMessageBox.Ok, QMessageBox.Ok)

  719.             return

  720. 

  721.         if not self.fWithCanvas:

  722.             return

  723. 

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

  725.             json.dump({

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

  727.             }, fh)

  728. 

  729.     def projectLoadingStarted(self):

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

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

  732. 

  733.     def projectLoadingFinished(self):

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

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

  736. 

  737.         if not self.fWithCanvas:

  738.             return

  739. 

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

  741. 

  742.         extrafile = self.makeExtraFilename()

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

  744.             return

  745. 

  746.         try:

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

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

  749.         except:

  750.             return

  751. 

  752.         patchcanvas.restoreGroupPositions(canvasdata)

  753. 

  754.     # --------------------------------------------------------------------------------------------------------

  755.     # Files (menu actions)

  756. 

  757.     @pyqtSlot()

  758.     def slot_fileNew(self):

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

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

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

  762.             return

  763. 

  764.         self.pluginRemoveAll()

  765.         self.fProjectFilename = ""

  766.         self.setProperWindowTitle()

  767.         self.host.clear_project_filename()

  768. 

  769.     @pyqtSlot()

  770.     def slot_fileOpen(self):

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

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

  773. 

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

  775.         if not filename:

  776.             return

  777. 

  778.         newFile = True

  779. 

  780.         if self.fPluginCount > 0:

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

  782.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  784. 

  785.         if newFile:

  786.             self.pluginRemoveAll()

  787.             self.fProjectFilename = filename

  788.             self.setProperWindowTitle()

  789.             self.loadProjectNow()

  790.         else:

  791.             filenameOld = self.fProjectFilename

  792.             self.fProjectFilename = filename

  793.             self.loadProjectNow()

  794.             self.fProjectFilename = filenameOld

  795. 

  796.     @pyqtSlot()

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

  798.         if self.fProjectFilename and not saveAs:

  799.             return self.saveProjectNow()

  800. 

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

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

  803. 

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

  805.         if not filename:

  806.             return

  807. 

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

  809.             filename += ".carxp"

  810. 

  811.         if self.fProjectFilename != filename:

  812.             self.fProjectFilename = filename

  813.             self.setProperWindowTitle()

  814. 

  815.         self.saveProjectNow()

  816. 

  817.     @pyqtSlot()

  818.     def slot_fileSaveAs(self):

  819.         self.slot_fileSave(True)

  820. 

  821.     @pyqtSlot()

  822.     def slot_loadProjectNow(self):

  823.         self.loadProjectNow()

  824. 

  825.     # --------------------------------------------------------------------------------------------------------

  826.     # Engine (menu actions)

  827. 

  828.     @pyqtSlot()

  829.     def slot_engineStart(self):

  830.         audioDriver = setEngineSettings(self.host)

  831.         firstInit   = self.fFirstEngineInit

  832. 

  833.         self.fFirstEngineInit = False

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

  835. 

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

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

  838.                 settings = QSettings()

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

  840.                 del settings

  841.                 if lastBpm >= 20.0:

  842.                     self.host.transport_bpm(lastBpm)

  843.             return

  844. 

  845.         elif firstInit:

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

  847.             return

  848. 

  849.         audioError = self.host.get_last_error()

  850. 

  851.         if audioError:

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

  853.         else:

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

  855. 

  856.     @pyqtSlot()

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

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

  859. 

  860.         if self.fPluginCount == 0:

  861.             self.engineStopFinal()

  862.             return True

  863. 

  864.         if not forced:

  865.             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"

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

  867.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  868.             if ask != QMessageBox.Yes:

  869.                 return False

  870. 

  871.         return self.slot_engineStopTryAgain()

  872. 

  873.     @pyqtSlot()

  874.     def slot_engineConfig(self):

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

  876. 

  877.         if not dialog.exec_():

  878.             return

  879. 

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

  881. 

  882.         if self.host.is_engine_running():

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

  884.         else:

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

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

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

  888. 

  889.     @pyqtSlot()

  890.     def slot_engineStopTryAgain(self):

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

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

  893.             return False

  894. 

  895.         self.engineStopFinal()

  896.         return True

  897. 

  898.     def engineStopFinal(self):

  899.         self.killTimers()

  900. 

  901.         if self.host.is_engine_running():

  902.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  903.                 self.removeAllPlugins()

  904.             elif self.fPluginCount != 0:

  905.                 self.fCurrentlyRemovingAllPlugins = True

  906.                 self.projectLoadingStarted()

  907. 

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

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

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

  911. 

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

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

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

  915. 

  916.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  917.             self.close()

  918.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  919.             self.slot_engineStart()

  920.             self.loadProjectNow()

  921.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  922. 

  923.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  924. 

  925.     # --------------------------------------------------------------------------------------------------------

  926.     # Engine (host callbacks)

  927. 

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

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

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

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

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

  933. 

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

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

  936. 

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

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

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

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

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

  942.             self.fExternalPatchbay = False

  943.         else:

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

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

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

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

  948.             self.fExternalPatchbay = True

  949. 

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

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

  952. 

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

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

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

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

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

  958. 

  959.         if not self.host.isPlugin:

  960.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  961. 

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

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

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

  965. 

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

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

  968. 

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

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

  971. 

  972.         self.updateBufferSize(bufferSize)

  973.         self.updateSampleRate(int(sampleRate))

  974.         self.refreshRuntimeInfo(0.0, 0)

  975.         self.startTimers()

  976. 

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

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

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

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

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

  982. 

  983.     @pyqtSlot()

  984.     def slot_handleEngineStoppedCallback(self):

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

  986. 

  987.         patchcanvas.clear()

  988.         self.killTimers()

  989. 

  990.         # just in case

  991.         self.removeAllPlugins()

  992.         self.refreshRuntimeInfo(0.0, 0)

  993. 

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

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

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

  997. 

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

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

  1000.             self.ui.act_engine_start.setEnabled(True)

  1001.             self.ui.act_engine_stop.setEnabled(False)

  1002. 

  1003.         if self.host.isPlugin or not self.fSessionManagerName:

  1004.             self.ui.act_file_open.setEnabled(False)

  1005.             self.ui.act_file_save_as.setEnabled(False)

  1006. 

  1007.     @pyqtSlot(int, str)

  1008.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1009.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1010. 

  1011.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1012.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1013. 

  1014.     @pyqtSlot(int)

  1015.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1016.         self.updateBufferSize(newBufferSize)

  1017. 

  1018.     @pyqtSlot(float)

  1019.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1020.         self.updateSampleRate(int(newSampleRate))

  1021. 

  1022.     @pyqtSlot(int, bool, str)

  1023.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1024.         if self.fCancelableActionBox is not None:

  1025.             self.fCancelableActionBox.close()

  1026. 

  1027.         if started:

  1028.             self.fCancelableActionBox = QMessageBox(self)

  1029.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1030.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1031.             self.fCancelableActionBox.setText(action)

  1032.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1033.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1034.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1035.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1036.             self.fCancelableActionBox.show()

  1037. 

  1038.         else:

  1039.             self.fCancelableActionBox = None

  1040. 

  1041.     @pyqtSlot()

  1042.     def slot_canlableActionBoxClicked(self):

  1043.         self.host.cancel_engine_action()

  1044. 

  1045.     @pyqtSlot()

  1046.     def slot_handleProjectLoadFinishedCallback(self):

  1047.         self.fIsProjectLoading = False

  1048.         self.projectLoadingFinished()

  1049. 

  1050.     # --------------------------------------------------------------------------------------------------------

  1051.     # Plugins

  1052. 

  1053.     def removeAllPlugins(self):

  1054.         self.ui.act_plugin_remove_all.setEnabled(False)

  1055.         patchcanvas.handleAllPluginsRemoved()

  1056. 

  1057.         while self.ui.listWidget.takeItem(0):

  1058.             pass

  1059. 

  1060.         self.clearSideStuff()

  1061. 

  1062.         for pitem in self.fPluginList:

  1063.             if pitem is None:

  1064.                 continue

  1065. 

  1066.             pitem.close()

  1067.             del pitem

  1068. 

  1069.         self.fPluginCount = 0

  1070.         self.fPluginList  = []

  1071. 

  1072.     # --------------------------------------------------------------------------------------------------------

  1073.     # Plugins (menu actions)

  1074. 

  1075.     def showAddPluginDialog(self):

  1076.         if self.fPluginDatabaseDialog is None:

  1077.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1078.         dialog = self.fPluginDatabaseDialog

  1079. 

  1080.         ret = dialog.exec_()

  1081. 

  1082.         if dialog.fFavoritePluginsChanged:

  1083.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1084. 

  1085.         if not ret:

  1086.             return

  1087. 

  1088.         if not self.host.is_engine_running():

  1089.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1090.             return

  1091. 

  1092.         btype    = dialog.fRetPlugin['build']

  1093.         ptype    = dialog.fRetPlugin['type']

  1094.         filename = dialog.fRetPlugin['filename']

  1095.         label    = dialog.fRetPlugin['label']

  1096.         uniqueId = dialog.fRetPlugin['uniqueId']

  1097.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1098. 

  1099.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1100. 

  1101.     def showAddJackAppDialog(self):

  1102.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1103. 

  1104.         if not dialog.exec_():

  1105.             return

  1106. 

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

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

  1109.             return

  1110. 

  1111.         return dialog.getCommandAndFlags()

  1112. 

  1113.     @pyqtSlot()

  1114.     def slot_favoritePluginAdd(self):

  1115.         plugin = self.sender().data()

  1116. 

  1117.         if plugin is None:

  1118.             return

  1119. 

  1120.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1121.                                     plugin['label'], plugin['uniqueId'], None, 0x0):

  1122.             CustomMessageBox(self,

  1123.                              QMessageBox.Critical,

  1124.                              self.tr("Error"),

  1125.                              self.tr("Failed to load plugin"),

  1126.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1127. 

  1128.     @pyqtSlot()

  1129.     def showPluginActionsMenu(self):

  1130.         menu = QMenu(self)

  1131. 

  1132.         menu.addSection("Plugins")

  1133.         menu.addAction(self.ui.act_plugin_add)

  1134. 

  1135.         if len(self.fFavoritePlugins) != 0:

  1136.             fmenu = QMenu("Add from favorites", self)

  1137.             for p in self.fFavoritePlugins:

  1138.                 act = fmenu.addAction(p['name'])

  1139.                 act.setData(p)

  1140.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1141.             menu.addMenu(fmenu)

  1142. 

  1143.         menu.addAction(self.ui.act_plugin_remove_all)

  1144. 

  1145.         menu.addSection("All plugins (macros)")

  1146.         menu.addAction(self.ui.act_plugins_enable)

  1147.         menu.addAction(self.ui.act_plugins_disable)

  1148.         menu.addSeparator()

  1149.         menu.addAction(self.ui.act_plugins_volume100)

  1150.         menu.addAction(self.ui.act_plugins_mute)

  1151.         menu.addSeparator()

  1152.         menu.addAction(self.ui.act_plugins_wet100)

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

  1154.         menu.addSeparator()

  1155.         menu.addAction(self.ui.act_plugins_center)

  1156.         menu.addSeparator()

  1157.         menu.addAction(self.ui.act_plugins_compact)

  1158.         menu.addAction(self.ui.act_plugins_expand)

  1159. 

  1160.         menu.exec_(QCursor.pos())

  1161. 

  1162.     @pyqtSlot()

  1163.     def slot_pluginAdd(self):

  1164.         data = self.showAddPluginDialog()

  1165. 

  1166.         if data is None:

  1167.             return

  1168. 

  1169.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1170. 

  1171.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1172.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1173. 

  1174.     @pyqtSlot()

  1175.     def slot_confirmRemoveAll(self):

  1176.         if self.fPluginCount == 0:

  1177.             return

  1178. 

  1179.         if QMessageBox.question(self, self.tr("Remove All"),

  1180.                                       self.tr("Are you sure you want to remove all plugins?"),

  1181.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1182.             return

  1183. 

  1184.         self.pluginRemoveAll()

  1185. 

  1186.     def pluginRemoveAll(self):

  1187.         if self.fPluginCount == 0:

  1188.             return

  1189. 

  1190.         self.fCurrentlyRemovingAllPlugins = True

  1191.         self.projectLoadingStarted()

  1192. 

  1193.         if not self.host.remove_all_plugins():

  1194.             self.projectLoadingFinished()

  1195.             self.fCurrentlyRemovingAllPlugins = False

  1196.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1197.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1198. 

  1199.     @pyqtSlot()

  1200.     def slot_jackAppAdd(self):

  1201.         data = self.showAddJackAppDialog()

  1202. 

  1203.         if data is None:

  1204.             return

  1205. 

  1206.         filename, name, label = data

  1207. 

  1208.         if not filename:

  1209.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1210.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1211.             return

  1212. 

  1213.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1214.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1215.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1216. 

  1217.     # --------------------------------------------------------------------------------------------------------

  1218.     # Plugins (macros)

  1219. 

  1220.     @pyqtSlot()

  1221.     def slot_pluginsEnable(self):

  1222.         if not self.host.is_engine_running():

  1223.             return

  1224. 

  1225.         for pitem in self.fPluginList:

  1226.             if pitem is None:

  1227.                 break

  1228. 

  1229.             pitem.getWidget().setActive(True, True, True)

  1230. 

  1231.     @pyqtSlot()

  1232.     def slot_pluginsDisable(self):

  1233.         if not self.host.is_engine_running():

  1234.             return

  1235. 

  1236.         for pitem in self.fPluginList:

  1237.             if pitem is None:

  1238.                 break

  1239. 

  1240.             pitem.getWidget().setActive(False, True, True)

  1241. 

  1242.     @pyqtSlot()

  1243.     def slot_pluginsVolume100(self):

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

  1245.             return

  1246. 

  1247.         for pitem in self.fPluginList:

  1248.             if pitem is None:

  1249.                 break

  1250. 

  1251.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1252. 

  1253.     @pyqtSlot()

  1254.     def slot_pluginsMute(self):

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

  1256.             return

  1257. 

  1258.         for pitem in self.fPluginList:

  1259.             if pitem is None:

  1260.                 break

  1261. 

  1262.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1263. 

  1264.     @pyqtSlot()

  1265.     def slot_pluginsWet100(self):

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

  1267.             return

  1268. 

  1269.         for pitem in self.fPluginList:

  1270.             if pitem is None:

  1271.                 break

  1272. 

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

  1274. 

  1275.     @pyqtSlot()

  1276.     def slot_pluginsBypass(self):

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

  1278.             return

  1279. 

  1280.         for pitem in self.fPluginList:

  1281.             if pitem is None:

  1282.                 break

  1283. 

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

  1285. 

  1286.     @pyqtSlot()

  1287.     def slot_pluginsCenter(self):

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

  1289.             return

  1290. 

  1291.         for pitem in self.fPluginList:

  1292.             if pitem is None:

  1293.                 break

  1294. 

  1295.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1296.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1297.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1298. 

  1299.     @pyqtSlot()

  1300.     def slot_pluginsCompact(self):

  1301.         for pitem in self.fPluginList:

  1302.             if pitem is None:

  1303.                 break

  1304.             pitem.compact()

  1305. 

  1306.     @pyqtSlot()

  1307.     def slot_pluginsExpand(self):

  1308.         for pitem in self.fPluginList:

  1309.             if pitem is None:

  1310.                 break

  1311.             pitem.expand()

  1312. 

  1313.     # --------------------------------------------------------------------------------------------------------

  1314.     # Plugins (host callbacks)

  1315. 

  1316.     @pyqtSlot(int, str)

  1317.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1318.         if pluginId != self.fPluginCount:

  1319.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1320.             pitem = self.getPluginItem(pluginId)

  1321.             pitem.recreateWidget()

  1322.             return

  1323. 

  1324.         pitem = self.ui.listWidget.createItem(pluginId)

  1325.         self.fPluginList.append(pitem)

  1326.         self.fPluginCount += 1

  1327. 

  1328.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1329. 

  1330.     @pyqtSlot(int)

  1331.     def slot_handlePluginRemovedCallback(self, pluginId):

  1332.         patchcanvas.handlePluginRemoved(pluginId)

  1333. 

  1334.         if pluginId in self.fSelectedPlugins:

  1335.             self.clearSideStuff()

  1336. 

  1337.         if self.fPluginCount == 0:

  1338.             return

  1339. 

  1340.         pitem = self.getPluginItem(pluginId)

  1341. 

  1342.         self.fPluginCount -= 1

  1343.         self.fPluginList.pop(pluginId)

  1344.         self.ui.listWidget.takeItem(pluginId)

  1345. 

  1346.         if pitem is not None:

  1347.             pitem.close()

  1348.             del pitem

  1349. 

  1350.         if self.fPluginCount == 0:

  1351.             self.ui.act_plugin_remove_all.setEnabled(False)

  1352.             if self.fCurrentlyRemovingAllPlugins:

  1353.                 self.fCurrentlyRemovingAllPlugins = False

  1354.                 self.projectLoadingFinished()

  1355.             return

  1356. 

  1357.         # push all plugins 1 slot back

  1358.         for i in range(pluginId, self.fPluginCount):

  1359.             pitem = self.fPluginList[i]

  1360.             pitem.setPluginId(i)

  1361. 

  1362.         self.ui.act_plugin_remove_all.setEnabled(True)

  1363. 

  1364.     # --------------------------------------------------------------------------------------------------------

  1365.     # Canvas

  1366. 

  1367.     def clearSideStuff(self):

  1368.         if self.fWithCanvas:

  1369.             self.scene.clearSelection()

  1370. 

  1371.         self.fSelectedPlugins = []

  1372. 

  1373.         self.ui.keyboard.allNotesOff(False)

  1374.         self.ui.scrollArea.setEnabled(False)

  1375. 

  1376.         self.fPeaksCleared = True

  1377.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1378.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1379.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1380.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1381. 

  1382.     def setupCanvas(self):

  1383.         pOptions = patchcanvas.options_t()

  1384.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1385.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1386.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1387.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1388.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1389.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1390. 

  1391.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1392.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1393.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1394.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1395.         else:

  1396.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1397. 

  1398.         pFeatures = patchcanvas.features_t()

  1399.         pFeatures.group_info   = False

  1400.         pFeatures.group_rename = False

  1401.         pFeatures.port_info    = False

  1402.         pFeatures.port_rename  = False

  1403.         pFeatures.handle_group_pos = True

  1404. 

  1405.         patchcanvas.setOptions(pOptions)

  1406.         patchcanvas.setFeatures(pFeatures)

  1407.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1408. 

  1409.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1410. 

  1411.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1412.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1413.             self.fCanvasHeight = int(tryCanvasSize[1])

  1414.         else:

  1415.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1416.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1417. 

  1418.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1419.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1420.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1421. 

  1422.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1423.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1424. 

  1425.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1426.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1427. 

  1428.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1429.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1430.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1431. 

  1432.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1433.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1434. 

  1435.         else:

  1436.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1437. 

  1438.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1439.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1440.         else:

  1441.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1442. 

  1443.     def updateCanvasInitialPos(self):

  1444.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1445.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1446.         patchcanvas.setInitialPos(x, y)

  1447. 

  1448.     def updateMiniCanvasLater(self):

  1449.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1450. 

  1451.     # --------------------------------------------------------------------------------------------------------

  1452.     # Canvas (menu actions)

  1453. 

  1454.     @pyqtSlot()

  1455.     def slot_canvasShowInternal(self):

  1456.         self.fExternalPatchbay = False

  1457.         self.ui.act_canvas_show_internal.blockSignals(True)

  1458.         self.ui.act_canvas_show_external.blockSignals(True)

  1459.         self.ui.act_canvas_show_internal.setChecked(True)

  1460.         self.ui.act_canvas_show_external.setChecked(False)

  1461.         self.ui.act_canvas_show_internal.blockSignals(False)

  1462.         self.ui.act_canvas_show_external.blockSignals(False)

  1463.         self.slot_canvasRefresh()

  1464. 

  1465.     @pyqtSlot()

  1466.     def slot_canvasShowExternal(self):

  1467.         self.fExternalPatchbay = True

  1468.         self.ui.act_canvas_show_internal.blockSignals(True)

  1469.         self.ui.act_canvas_show_external.blockSignals(True)

  1470.         self.ui.act_canvas_show_internal.setChecked(False)

  1471.         self.ui.act_canvas_show_external.setChecked(True)

  1472.         self.ui.act_canvas_show_internal.blockSignals(False)

  1473.         self.ui.act_canvas_show_external.blockSignals(False)

  1474.         self.slot_canvasRefresh()

  1475. 

  1476.     @pyqtSlot()

  1477.     def slot_canvasArrange(self):

  1478.         patchcanvas.arrange()

  1479. 

  1480.     @pyqtSlot()

  1481.     def slot_canvasRefresh(self):

  1482.         patchcanvas.clear()

  1483. 

  1484.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1485.             return

  1486. 

  1487.         if self.host.is_engine_running():

  1488.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1489. 

  1490.         self.updateMiniCanvasLater()

  1491. 

  1492.     @pyqtSlot()

  1493.     def slot_canvasZoomFit(self):

  1494.         self.scene.zoom_fit()

  1495. 

  1496.     @pyqtSlot()

  1497.     def slot_canvasZoomIn(self):

  1498.         self.scene.zoom_in()

  1499. 

  1500.     @pyqtSlot()

  1501.     def slot_canvasZoomOut(self):

  1502.         self.scene.zoom_out()

  1503. 

  1504.     @pyqtSlot()

  1505.     def slot_canvasZoomReset(self):

  1506.         self.scene.zoom_reset()

  1507. 

  1508.     @pyqtSlot()

  1509.     def slot_canvasSaveImage(self):

  1510.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1511. 

  1512.         # FIXME use ok value, test if it works as expected

  1513.         if not newPath:

  1514.             return

  1515. 

  1516.         self.scene.clearSelection()

  1517. 

  1518.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1519.             imgFormat = "JPG"

  1520.         elif newPath.lower().endswith((".png",)):

  1521.             imgFormat = "PNG"

  1522.         else:

  1523.             # File-dialog may not auto-add the extension

  1524.             imgFormat = "PNG"

  1525.             newPath  += ".png"

  1526. 

  1527.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1528.         painter = QPainter(self.fExportImage)

  1529.         painter.save()

  1530.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1531.         painter.setRenderHint(QPainter.TextAntialiasing)

  1532.         self.scene.render(painter)

  1533.         self.fExportImage.save(newPath, imgFormat, 100)

  1534.         painter.restore()

  1535. 

  1536.     # --------------------------------------------------------------------------------------------------------

  1537.     # Canvas (canvas callbacks)

  1538. 

  1539.     @pyqtSlot(int, int, QPointF)

  1540.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1541.         self.updateMiniCanvasLater()

  1542. 

  1543.     @pyqtSlot()

  1544.     def slot_canvasSelectionChanged(self):

  1545.         self.updateMiniCanvasLater()

  1546. 

  1547.     @pyqtSlot(float)

  1548.     def slot_canvasScaleChanged(self, scale):

  1549.         self.ui.miniCanvasPreview.setViewScale(scale)

  1550. 

  1551.     @pyqtSlot(list)

  1552.     def slot_canvasPluginSelected(self, pluginList):

  1553.         self.ui.keyboard.allNotesOff(False)

  1554.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1555.         self.fSelectedPlugins = pluginList

  1556. 

  1557.     # --------------------------------------------------------------------------------------------------------

  1558.     # Canvas (host callbacks)

  1559. 

  1560.     @pyqtSlot(int, int, int, str)

  1561.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1562.         pcSplit = patchcanvas.SPLIT_UNDEF

  1563.         pcIcon  = patchcanvas.ICON_APPLICATION

  1564. 

  1565.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1566.             pcIcon = patchcanvas.ICON_PLUGIN

  1567.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1568.             pcIcon = patchcanvas.ICON_HARDWARE

  1569.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1570.             pass

  1571.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1572.             pcIcon = patchcanvas.ICON_DISTRHO

  1573.         elif clientIcon == PATCHBAY_ICON_FILE:

  1574.             pcIcon = patchcanvas.ICON_FILE

  1575. 

  1576.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1577. 

  1578.         self.updateMiniCanvasLater()

  1579. 

  1580.         if pluginId < 0:

  1581.             return

  1582.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1583.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1584.             return

  1585. 

  1586.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1587.             hasCustomUI = False

  1588.             hasInlineDisplay = False

  1589.         else:

  1590.             hints = self.host.get_plugin_info(pluginId)['hints']

  1591.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1592.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1593. 

  1594.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1595. 

  1596.     @pyqtSlot(int)

  1597.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1598.         patchcanvas.removeGroup(clientId)

  1599.         self.updateMiniCanvasLater()

  1600. 

  1601.     @pyqtSlot(int, str)

  1602.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1603.         patchcanvas.renameGroup(clientId, newClientName)

  1604.         self.updateMiniCanvasLater()

  1605. 

  1606.     @pyqtSlot(int, int, int)

  1607.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1608.         pcIcon = patchcanvas.ICON_APPLICATION

  1609. 

  1610.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1611.             pcIcon = patchcanvas.ICON_PLUGIN

  1612.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1613.             pcIcon = patchcanvas.ICON_HARDWARE

  1614.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1615.             pass

  1616.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1617.             pcIcon = patchcanvas.ICON_DISTRHO

  1618.         elif clientIcon == PATCHBAY_ICON_FILE:

  1619.             pcIcon = patchcanvas.ICON_FILE

  1620. 

  1621.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1622.         self.updateMiniCanvasLater()

  1623. 

  1624.         if pluginId < 0:

  1625.             return

  1626.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1627.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1628.             return

  1629. 

  1630.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1631.             hasCustomUI = False

  1632.             hasInlineDisplay = False

  1633.         else:

  1634.             hints = self.host.get_plugin_info(pluginId)['hints']

  1635.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1636.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1637. 

  1638.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1639. 

  1640.     @pyqtSlot(int, int, int, int, str)

  1641.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1642.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1643.             portMode = patchcanvas.PORT_MODE_INPUT

  1644.         else:

  1645.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1646. 

  1647.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1648.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1649.             isAlternate = False

  1650.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1651.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1652.             isAlternate = True

  1653.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1654.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1655.             isAlternate = False

  1656.         else:

  1657.             portType    = patchcanvas.PORT_TYPE_NULL

  1658.             isAlternate = False

  1659. 

  1660.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1661.         self.updateMiniCanvasLater()

  1662. 

  1663.     @pyqtSlot(int, int)

  1664.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1665.         patchcanvas.removePort(groupId, portId)

  1666.         self.updateMiniCanvasLater()

  1667. 

  1668.     @pyqtSlot(int, int, int, int, str)

  1669.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1670.         patchcanvas.renamePort(groupId, portId, newPortName)

  1671.         self.updateMiniCanvasLater()

  1672. 

  1673.     @pyqtSlot(int, int, int, str)

  1674.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1675.         # TODO

  1676.         pass

  1677. 

  1678.     @pyqtSlot(int, int)

  1679.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1680.         # TODO

  1681.         pass

  1682. 

  1683.     @pyqtSlot(int, int, int, str)

  1684.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1685.         # TODO

  1686.         pass

  1687. 

  1688.     @pyqtSlot(int, int, int, int, int)

  1689.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1690.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1691.         self.updateMiniCanvasLater()

  1692. 

  1693.     @pyqtSlot(int, int, int)

  1694.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1695.         patchcanvas.disconnectPorts(connectionId)

  1696.         self.updateMiniCanvasLater()

  1697. 

  1698.     # --------------------------------------------------------------------------------------------------------

  1699.     # Settings

  1700. 

  1701.     def saveSettings(self):

  1702.         settings = QSettings()

  1703. 

  1704.         settings.setValue("Geometry", self.saveGeometry())

  1705.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1706. 

  1707.         if not self.host.isControl:

  1708.             settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1709. 

  1710.         diskFolders = []

  1711. 

  1712.         for i in range(self.ui.cb_disk.count()):

  1713.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1714. 

  1715.         settings.setValue("DiskFolders", diskFolders)

  1716.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1717. 

  1718.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1719.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1720.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1721.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1722. 

  1723.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1724.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1725. 

  1726.         return settings

  1727. 

  1728.     def loadSettings(self, firstTime):

  1729.         settings = QSettings()

  1730. 

  1731.         if firstTime:

  1732.             self.restoreGeometry(settings.value("Geometry", b""))

  1733. 

  1734.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1735.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1736.             self.ui.toolBar.setEnabled(showToolbar)

  1737.             self.ui.toolBar.setVisible(showToolbar)

  1738. 

  1739.             #if settings.contains("SplitterState"):

  1740.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1741.             #else:

  1742.                 #self.ui.splitter.setSizes([210, 99999])

  1743. 

  1744.             showSidePanel = settings.value("ShowSidePanel", True, type=bool) and not self.host.isControl

  1745.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1746.             self.slot_showSidePanel(showSidePanel)

  1747. 

  1748.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1749. 

  1750.             self.ui.cb_disk.setItemData(0, HOME)

  1751. 

  1752.             for i in range(len(diskFolders)):

  1753.                 if i == 0: continue

  1754.                 folder = diskFolders[i]

  1755.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1756. 

  1757.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1758.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1759. 

  1760.             showMeters = settings.value("ShowMeters", True, type=bool)

  1761.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1762.             self.ui.peak_in.setVisible(showMeters)

  1763.             self.ui.peak_out.setVisible(showMeters)

  1764. 

  1765.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1766.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1767.             self.ui.scrollArea.setVisible(showKeyboard)

  1768. 

  1769.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1770. 

  1771.             settingsDBf = QSettings("falkTX", "CarlaDatabase2")

  1772.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], type=list)

  1773. 

  1774.         # TODO - complete this

  1775. 

  1776.         self.fSavedSettings = {

  1777.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1778.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1779.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1780.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1781.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1782.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1783.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1784.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1785.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1786.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1787.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1788.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1789.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1790.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1791.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     type=bool),

  1792.             CARLA_KEY_CANVAS_INLINE_DISPLAYS:   settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS,   CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS,   type=bool),

  1793.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1794.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1795.         }

  1796. 

  1797.         settings2 = QSettings("falkTX", "Carla2")

  1798. 

  1799.         if self.host.experimental:

  1800.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1801.             self.ui.act_plugin_add_jack.setVisible(visible)

  1802.         else:

  1803.             self.ui.act_plugin_add_jack.setVisible(False)

  1804. 

  1805.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1806. 

  1807.         setEngineSettings(self.host)

  1808.         self.restartTimersIfNeeded()

  1809. 

  1810.         return settings

  1811. 

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

  1813.     # Settings (helpers)

  1814. 

  1815.     def enableTransport(self, enabled):

  1816.         self.ui.group_transport_controls.setEnabled(enabled)

  1817.         self.ui.group_transport_settings.setEnabled(enabled)

  1818. 

  1819.     @pyqtSlot()

  1820.     def slot_restoreCanvasScrollbarValues(self):

  1821.         settings = QSettings()

  1822.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1823.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1824. 

  1825.     # --------------------------------------------------------------------------------------------------------

  1826.     # Settings (menu actions)

  1827. 

  1828.     @pyqtSlot(bool)

  1829.     def slot_showSidePanel(self, yesNo):

  1830.         self.ui.dockWidget.setEnabled(yesNo)

  1831.         self.ui.dockWidget.setVisible(yesNo)

  1832. 

  1833.     @pyqtSlot(bool)

  1834.     def slot_showToolbar(self, yesNo):

  1835.         self.ui.toolBar.setEnabled(yesNo)

  1836.         self.ui.toolBar.setVisible(yesNo)

  1837. 

  1838.     @pyqtSlot(bool)

  1839.     def slot_showCanvasMeters(self, yesNo):

  1840.         self.ui.peak_in.setVisible(yesNo)

  1841.         self.ui.peak_out.setVisible(yesNo)

  1842.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1843. 

  1844.     @pyqtSlot(bool)

  1845.     def slot_showCanvasKeyboard(self, yesNo):

  1846.         self.ui.scrollArea.setVisible(yesNo)

  1847.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1848. 

  1849.     @pyqtSlot()

  1850.     def slot_configureCarla(self):

  1851.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1852.         if not dialog.exec_():

  1853.             return

  1854. 

  1855.         self.loadSettings(False)

  1856. 

  1857.         patchcanvas.clear()

  1858. 

  1859.         self.setupCanvas()

  1860.         self.slot_miniCanvasCheckAll()

  1861. 

  1862.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1863.             pass

  1864.         elif self.host.is_engine_running():

  1865.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1866. 

  1867.     # --------------------------------------------------------------------------------------------------------

  1868.     # About (menu actions)

  1869. 

  1870.     @pyqtSlot()

  1871.     def slot_aboutCarla(self):

  1872.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1873. 

  1874.     @pyqtSlot()

  1875.     def slot_aboutJuce(self):

  1876.         JuceAboutW(self.fParentOrSelf).exec_()

  1877. 

  1878.     @pyqtSlot()

  1879.     def slot_aboutQt(self):

  1880.         QApplication.instance().aboutQt()

  1881. 

  1882.     # --------------------------------------------------------------------------------------------------------

  1883.     # Disk (menu actions)

  1884. 

  1885.     @pyqtSlot(int)

  1886.     def slot_diskFolderChanged(self, index):

  1887.         if index < 0:

  1888.             return

  1889.         elif index == 0:

  1890.             filename = HOME

  1891.             self.ui.b_disk_remove.setEnabled(False)

  1892.         else:

  1893.             filename = self.ui.cb_disk.itemData(index)

  1894.             self.ui.b_disk_remove.setEnabled(True)

  1895. 

  1896.         self.fDirModel.setRootPath(filename)

  1897.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1898. 

  1899.     @pyqtSlot()

  1900.     def slot_diskFolderAdd(self):

  1901.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1902. 

  1903.         if newPath:

  1904.             if newPath[-1] == os.sep:

  1905.                 newPath = newPath[:-1]

  1906.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1907.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1908.             self.ui.b_disk_remove.setEnabled(True)

  1909. 

  1910.     @pyqtSlot()

  1911.     def slot_diskFolderRemove(self):

  1912.         index = self.ui.cb_disk.currentIndex()

  1913. 

  1914.         if index <= 0:

  1915.             return

  1916. 

  1917.         self.ui.cb_disk.removeItem(index)

  1918. 

  1919.         if self.ui.cb_disk.currentIndex() == 0:

  1920.             self.ui.b_disk_remove.setEnabled(False)

  1921. 

  1922.     @pyqtSlot(QModelIndex)

  1923.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1924.         filename = self.fDirModel.filePath(modelIndex)

  1925. 

  1926.         if not self.ui.listWidget.isDragUrlValid(filename):

  1927.             return

  1928. 

  1929.         if not self.host.load_file(filename):

  1930.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1931.                              self.tr("Failed to load file"),

  1932.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1933. 

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

  1935.     # Transport

  1936. 

  1937.     def refreshTransport(self, forced = False):

  1938.         if not self.ui.l_transport_time.isVisible():

  1939.             return

  1940.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1941.             return

  1942. 

  1943.         timeInfo = self.host.get_transport_info()

  1944.         playing  = timeInfo['playing']

  1945.         frame    = timeInfo['frame']

  1946.         bpm      = timeInfo['bpm']

  1947. 

  1948.         if playing != self.fLastTransportState or forced:

  1949.             if playing:

  1950.                 icon = QIcon(":/16x16/media-playback-pause.svgz")

  1951.                 self.ui.b_transport_play.setChecked(True)

  1952.                 self.ui.b_transport_play.setIcon(icon)

  1953.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1954.             else:

  1955.                 icon = QIcon(":/16x16/media-playback-start.svgz")

  1956.                 self.ui.b_transport_play.setChecked(False)

  1957.                 self.ui.b_transport_play.setIcon(icon)

  1958.                 #self.ui.b_play.setText(self.tr("&Play"))

  1959. 

  1960.             self.fLastTransportState = playing

  1961. 

  1962.         if frame != self.fLastTransportFrame or forced:

  1963.             self.fLastTransportFrame = frame

  1964. 

  1965.             time = frame / self.fSampleRate

  1966.             secs =  time % 60

  1967.             mins = (time / 60) % 60

  1968.             hrs  = (time / 3600) % 60

  1969.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1970. 

  1971.             frame1 =  frame % 1000

  1972.             frame2 = (frame / 1000) % 1000

  1973.             frame3 = (frame / 1000000) % 1000

  1974.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1975. 

  1976.             bar  = timeInfo['bar']

  1977.             beat = timeInfo['beat']

  1978.             tick = timeInfo['tick']

  1979.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1980. 

  1981.         if bpm != self.fLastTransportBPM or forced:

  1982.             self.fLastTransportBPM = bpm

  1983. 

  1984.             if bpm > 0.0:

  1985.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1986.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1987.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1988.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1989.             else:

  1990.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1991. 

  1992.     # --------------------------------------------------------------------------------------------------------

  1993.     # Transport (menu actions)

  1994. 

  1995.     @pyqtSlot(bool)

  1996.     def slot_transportPlayPause(self, toggled):

  1997.         if self.host.isPlugin or not self.host.is_engine_running():

  1998.             return

  1999. 

  2000.         if toggled:

  2001.             self.host.transport_play()

  2002.         else:

  2003.             self.host.transport_pause()

  2004. 

  2005.         self.refreshTransport()

  2006. 

  2007.     @pyqtSlot()

  2008.     def slot_transportStop(self):

  2009.         if self.host.isPlugin or not self.host.is_engine_running():

  2010.             return

  2011. 

  2012.         self.host.transport_pause()

  2013.         self.host.transport_relocate(0)

  2014. 

  2015.         self.refreshTransport()

  2016. 

  2017.     @pyqtSlot()

  2018.     def slot_transportBackwards(self):

  2019.         if self.host.isPlugin or not self.host.is_engine_running():

  2020.             return

  2021. 

  2022.         newFrame = self.host.get_current_transport_frame() - 100000

  2023. 

  2024.         if newFrame < 0:

  2025.             newFrame = 0

  2026. 

  2027.         self.host.transport_relocate(newFrame)

  2028. 

  2029.     @pyqtSlot(float)

  2030.     def slot_transportBpmChanged(self, newValue):

  2031.         self.host.transport_bpm(newValue)

  2032. 

  2033.     @pyqtSlot()

  2034.     def slot_transportForwards(self):

  2035.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2036.             return

  2037. 

  2038.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2039.         self.host.transport_relocate(newFrame)

  2040. 

  2041.     @pyqtSlot(bool)

  2042.     def slot_transportJackEnabled(self, clicked):

  2043.         if not self.host.is_engine_running():

  2044.             return

  2045.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2046.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2047.                                     self.host.transportMode,

  2048.                                     self.host.transportExtra)

  2049. 

  2050.     @pyqtSlot(bool)

  2051.     def slot_transportLinkEnabled(self, clicked):

  2052.         if not self.host.is_engine_running():

  2053.             return

  2054.         extra = ":link:" if clicked else ""

  2055.         self.host.transportExtra = extra

  2056.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2057.                                     self.host.transportMode,

  2058.                                     self.host.transportExtra)

  2059. 

  2060.     # --------------------------------------------------------------------------------------------------------

  2061.     # Other

  2062. 

  2063.     @pyqtSlot(bool)

  2064.     def slot_xrunClear(self):

  2065.         self.host.clear_engine_xruns()

  2066. 

  2067.     # --------------------------------------------------------------------------------------------------------

  2068.     # Canvas scrollbars

  2069. 

  2070.     @pyqtSlot(int)

  2071.     def slot_horizontalScrollBarChanged(self, value):

  2072.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2073.         if maximum == 0:

  2074.             xp = 0

  2075.         else:

  2076.             xp = float(value) / maximum

  2077.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2078.         self.updateCanvasInitialPos()

  2079. 

  2080.     @pyqtSlot(int)

  2081.     def slot_verticalScrollBarChanged(self, value):

  2082.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2083.         if maximum == 0:

  2084.             yp = 0

  2085.         else:

  2086.             yp = float(value) / maximum

  2087.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2088.         self.updateCanvasInitialPos()

  2089. 

  2090.     # --------------------------------------------------------------------------------------------------------

  2091.     # Canvas keyboard

  2092. 

  2093.     @pyqtSlot(int)

  2094.     def slot_noteOn(self, note):

  2095.         for pluginId in self.fSelectedPlugins:

  2096.             self.host.send_midi_note(pluginId, 0, note, 100)

  2097. 

  2098.             pedit = self.getPluginEditDialog(pluginId)

  2099.             pedit.noteOn(0, note, 100)

  2100. 

  2101.     @pyqtSlot(int)

  2102.     def slot_noteOff(self, note):

  2103.         for pluginId in self.fSelectedPlugins:

  2104.             self.host.send_midi_note(pluginId, 0, note, 0)

  2105. 

  2106.             pedit = self.getPluginEditDialog(pluginId)

  2107.             pedit.noteOff(0, note)

  2108. 

  2109.     # --------------------------------------------------------------------------------------------------------

  2110.     # Canvas keyboard (host callbacks)

  2111. 

  2112.     @pyqtSlot(int, int, int, int)

  2113.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2114.         if pluginId in self.fSelectedPlugins:

  2115.             self.ui.keyboard.sendNoteOn(note, False)

  2116. 

  2117.     @pyqtSlot(int, int, int)

  2118.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2119.         if pluginId in self.fSelectedPlugins:

  2120.             self.ui.keyboard.sendNoteOff(note, False)

  2121. 

  2122.     # --------------------------------------------------------------------------------------------------------

  2123. 

  2124.     @pyqtSlot(int)

  2125.     def slot_handleUpdateCallback(self, pluginId):

  2126.         pitem = self.getPluginItem(pluginId)

  2127. 

  2128.         if pitem is None:

  2129.             return

  2130. 

  2131.         wasCompacted = pitem.isCompacted()

  2132.         isCompacted  = wasCompacted

  2133. 

  2134.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2135.         if not check:

  2136.             return

  2137.         isCompacted = bool(check == "true")

  2138. 

  2139.         if wasCompacted == isCompacted:

  2140.             return

  2141. 

  2142.         pitem.recreateWidget(True)

  2143. 

  2144.     # --------------------------------------------------------------------------------------------------------

  2145.     # MiniCanvas stuff

  2146. 

  2147.     @pyqtSlot()

  2148.     def slot_miniCanvasCheckAll(self):

  2149.         self.slot_miniCanvasCheckSize()

  2150.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2151.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2152. 

  2153.     @pyqtSlot()

  2154.     def slot_miniCanvasCheckSize(self):

  2155.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2156.             return

  2157. 

  2158.         currentIndex = self.ui.tabWidget.currentIndex()

  2159. 

  2160.         if currentIndex == 1:

  2161.             width  = self.ui.graphicsView.width()

  2162.             height = self.ui.graphicsView.height()

  2163.         else:

  2164.             self.ui.tabWidget.blockSignals(True)

  2165.             self.ui.tabWidget.setCurrentIndex(1)

  2166.             width  = self.ui.graphicsView.width()

  2167.             height = self.ui.graphicsView.height()

  2168.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2169.             self.ui.tabWidget.blockSignals(False)

  2170. 

  2171.         self.scene.updateLimits()

  2172. 

  2173.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2174. 

  2175.     @pyqtSlot(float, float)

  2176.     def slot_miniCanvasMoved(self, xp, yp):

  2177.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2178.         vsb = self.ui.graphicsView.verticalScrollBar()

  2179.         hsb.setValue(xp * hsb.maximum())

  2180.         vsb.setValue(yp * vsb.maximum())

  2181.         self.updateCanvasInitialPos()

  2182. 

  2183.     # --------------------------------------------------------------------------------------------------------

  2184.     # Timers

  2185. 

  2186.     def startTimers(self):

  2187.         if self.fIdleTimerFast == 0:

  2188.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2189. 

  2190.         if self.fIdleTimerSlow == 0:

  2191.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2192. 

  2193.     def restartTimersIfNeeded(self):

  2194.         if self.fIdleTimerFast != 0:

  2195.             self.killTimer(self.fIdleTimerFast)

  2196.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2197. 

  2198.         if self.fIdleTimerSlow != 0:

  2199.             self.killTimer(self.fIdleTimerSlow)

  2200.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2201. 

  2202.     def killTimers(self):

  2203.         if self.fIdleTimerFast != 0:

  2204.             self.killTimer(self.fIdleTimerFast)

  2205.             self.fIdleTimerFast = 0

  2206. 

  2207.         if self.fIdleTimerSlow != 0:

  2208.             self.killTimer(self.fIdleTimerSlow)

  2209.             self.fIdleTimerSlow = 0

  2210. 

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

  2212.     # Misc

  2213. 

  2214.     @pyqtSlot(int)

  2215.     def slot_tabChanged(self, index):

  2216.         if index != 1:

  2217.             return

  2218. 

  2219.         self.ui.graphicsView.setFocus()

  2220. 

  2221.     @pyqtSlot(int)

  2222.     def slot_handleReloadAllCallback(self, pluginId):

  2223.         if pluginId >= self.fPluginCount:

  2224.             return

  2225. 

  2226.         pitem = self.fPluginList[pluginId]

  2227.         if pitem is None:

  2228.             return

  2229. 

  2230.         pitem.recreateWidget()

  2231. 

  2232.     # --------------------------------------------------------------------------------------------------------

  2233. 

  2234.     @pyqtSlot(int, int, str)

  2235.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2236.         if opcode == NSM_CALLBACK_INIT:

  2237.             return

  2238. 

  2239.         # Error

  2240.         elif opcode == NSM_CALLBACK_ERROR:

  2241.             pass

  2242. 

  2243.         # Reply

  2244.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2245.             self.fFirstEngineInit    = False

  2246.             self.fSessionManagerName = valueStr

  2247.             self.setProperWindowTitle()

  2248. 

  2249.         # Open

  2250.         elif opcode == NSM_CALLBACK_OPEN:

  2251.             self.fClientName      = os.path.basename(valueStr)

  2252.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2253.             self.setProperWindowTitle()

  2254. 

  2255.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2256.             self.slot_engineStop(True)

  2257.             return

  2258. 

  2259.         # Save

  2260.         elif opcode == NSM_CALLBACK_SAVE:

  2261.             self.saveProjectNow()

  2262. 

  2263.         # Session is Loaded

  2264.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2265.             pass

  2266. 

  2267.         # Show Optional Gui

  2268.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2269.             self.show()

  2270. 

  2271.         # Hide Optional Gui

  2272.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2273.             self.hide()

  2274. 

  2275.         self.host.nsm_ready(opcode)

  2276. 

  2277.     # --------------------------------------------------------------------------------------------------------

  2278. 

  2279.     def fixLogText(self, text):

  2280.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2281. 

  2282.     @pyqtSlot(int, int, int, int, float, str)

  2283.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2284.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2285. 

  2286.     @pyqtSlot(str)

  2287.     def slot_handleInfoCallback(self, info):

  2288.         QMessageBox.information(self, "Information", info)

  2289. 

  2290.     @pyqtSlot(str)

  2291.     def slot_handleErrorCallback(self, error):

  2292.         QMessageBox.critical(self, "Error", error)

  2293. 

  2294.     @pyqtSlot()

  2295.     def slot_handleQuitCallback(self):

  2296.         self.fIsProjectLoading = False

  2297.         self.killTimers()

  2298.         self.removeAllPlugins()

  2299.         self.projectLoadingFinished()

  2300. 

  2301.     @pyqtSlot(int)

  2302.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2303.         # FIXME

  2304.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2305.             patchcanvas.redrawPluginGroup(pluginId)

  2306. 

  2307.     # --------------------------------------------------------------------------------------------------------

  2308. 

  2309.     @pyqtSlot()

  2310.     def slot_handleSIGUSR1(self):

  2311.         print("Got SIGUSR1 -> Saving project now")

  2312.         self.slot_fileSave()

  2313. 

  2314.     @pyqtSlot()

  2315.     def slot_handleSIGTERM(self):

  2316.         print("Got SIGTERM -> Closing now")

  2317.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2318.         self.slot_engineStop(True)

  2319. 

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

  2321.     # Internal stuff

  2322. 

  2323.     def getExtraPtr(self, plugin):

  2324.         ptype = plugin['type']

  2325. 

  2326.         if ptype == PLUGIN_LADSPA:

  2327.             uniqueId = plugin['uniqueId']

  2328. 

  2329.             self.maybeLoadRDFs()

  2330. 

  2331.             for rdfItem in self.fLadspaRdfList:

  2332.                 if rdfItem.UniqueID == uniqueId:

  2333.                     return pointer(rdfItem)

  2334. 

  2335.         elif ptype == PLUGIN_SF2:

  2336.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2337.                 return self._true

  2338. 

  2339.         return None

  2340. 

  2341.     def maybeLoadRDFs(self):

  2342.         if not self.fLadspaRdfNeedsUpdate:

  2343.             return

  2344. 

  2345.         self.fLadspaRdfNeedsUpdate = False

  2346.         self.fLadspaRdfList = []

  2347. 

  2348.         if not haveLRDF:

  2349.             return

  2350. 

  2351.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2352.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2353. 

  2354.         if os.path.exists(frLadspaFile):

  2355.             frLadspa = open(frLadspaFile, 'r')

  2356. 

  2357.             try:

  2358.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2359.             except:

  2360.                 pass

  2361. 

  2362.             frLadspa.close()

  2363. 

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

  2365. 

  2366.     def getPluginCount(self):

  2367.         return self.fPluginCount

  2368. 

  2369.     def getPluginItem(self, pluginId):

  2370.         if pluginId >= self.fPluginCount:

  2371.             return None

  2372. 

  2373.         pitem = self.fPluginList[pluginId]

  2374.         if pitem is None:

  2375.             return None

  2376.         #if False:

  2377.             #return CarlaRackItem(self, 0, False)

  2378. 

  2379.         return pitem

  2380. 

  2381.     def getPluginEditDialog(self, pluginId):

  2382.         if pluginId >= self.fPluginCount:

  2383.             return None

  2384. 

  2385.         pitem = self.fPluginList[pluginId]

  2386.         if pitem is None:

  2387.             return None

  2388.         if False:

  2389.             return PluginEdit(self, self.host, 0)

  2390. 

  2391.         return pitem.getEditDialog()

  2392. 

  2393.     def getPluginSlotWidget(self, pluginId):

  2394.         if pluginId >= self.fPluginCount:

  2395.             return None

  2396. 

  2397.         pitem = self.fPluginList[pluginId]

  2398.         if pitem is None:

  2399.             return None

  2400.         #if False:

  2401.             #return AbstractPluginSlot()

  2402. 

  2403.         return pitem.getWidget()

  2404. 

  2405.     # --------------------------------------------------------------------------------------------------------

  2406. 

  2407.     def waitForPendingEvents(self):

  2408.         pass

  2409. 

  2410.     # --------------------------------------------------------------------------------------------------------

  2411.     # show/hide event

  2412. 

  2413.     def showEvent(self, event):

  2414.         self.getAndRefreshRuntimeInfo()

  2415.         self.refreshTransport(True)

  2416.         QMainWindow.showEvent(self, event)

  2417. 

  2418.         if QT_VERSION >= 0x50600:

  2419.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2420. 

  2421.         # set our gui as parent for all plugins UIs

  2422.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2423.             if MACOS:

  2424.                 nsViewPtr = int(self.winId())

  2425.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2426.             else:

  2427.                 winIdStr = "%x" % int(self.winId())

  2428.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2429. 

  2430.     def hideEvent(self, event):

  2431.         # disable parent

  2432.         if not (self.host.isControl or self.host.isPlugin):

  2433.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2434. 

  2435.         QMainWindow.hideEvent(self, event)

  2436. 

  2437.     # --------------------------------------------------------------------------------------------------------

  2438.     # resize event

  2439. 

  2440.     def resizeEvent(self, event):

  2441.         QMainWindow.resizeEvent(self, event)

  2442. 

  2443.         if self.fWithCanvas:

  2444.             self.slot_miniCanvasCheckSize()

  2445. 

  2446.     # --------------------------------------------------------------------------------------------------------

  2447.     # timer event

  2448. 

  2449.     def refreshRuntimeInfo(self, load, xruns):

  2450.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2451.         txt2 = "" if (xruns == 1) else "s"

  2452.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2453.         self.ui.pb_dsp_load.setValue(int(load))

  2454. 

  2455.     def getAndRefreshRuntimeInfo(self):

  2456.         if not self.ui.pb_dsp_load.isVisible():

  2457.             return

  2458.         if not self.host.is_engine_running():

  2459.             return

  2460.         info = self.host.get_runtime_engine_info()

  2461.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2462. 

  2463.     def idleFast(self):

  2464.         self.host.engine_idle()

  2465.         self.refreshTransport()

  2466. 

  2467.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2468.             return

  2469. 

  2470.         for pitem in self.fPluginList:

  2471.             if pitem is None:

  2472.                 break

  2473. 

  2474.             pitem.getWidget().idleFast()

  2475. 

  2476.         for pluginId in self.fSelectedPlugins:

  2477.             self.fPeaksCleared = False

  2478.             if self.ui.peak_in.isVisible():

  2479.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2480.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2481.             if self.ui.peak_out.isVisible():

  2482.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2483.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2484.             return

  2485. 

  2486.         if self.fPeaksCleared:

  2487.             return

  2488. 

  2489.         self.fPeaksCleared = True

  2490.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2491.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2492.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2493.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2494. 

  2495.     def idleSlow(self):

  2496.         self.getAndRefreshRuntimeInfo()

  2497. 

  2498.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2499.             return

  2500. 

  2501.         for pitem in self.fPluginList:

  2502.             if pitem is None:

  2503.                 break

  2504. 

  2505.             pitem.getWidget().idleSlow()

  2506. 

  2507.     def timerEvent(self, event):

  2508.         if event.timerId() == self.fIdleTimerFast:

  2509.             self.idleFast()

  2510. 

  2511.         elif event.timerId() == self.fIdleTimerSlow:

  2512.             self.idleSlow()

  2513. 

  2514.         QMainWindow.timerEvent(self, event)

  2515. 

  2516.     # --------------------------------------------------------------------------------------------------------

  2517.     # color/style change event

  2518. 

  2519.     def changeEvent(self, event):

  2520.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2521.             self.updateStyle()

  2522.         QWidget.changeEvent(self, event)

  2523. 

  2524.     def updateStyle(self):

  2525.         # Rack padding images setup

  2526.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2527.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2528. 

  2529.         min_value = 0.07

  2530. 

  2531.         if PYQT_VERSION >= 0x50600:

  2532.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2533.         else:

  2534.             value_fix = 1.5

  2535. 

  2536.         bg_color = self.ui.rack.palette().window().color()

  2537.         bg_value = 1.0 - bg_color.blackF()

  2538.         if bg_value != 0.0 and bg_value < min_value:

  2539.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2540.         else:

  2541.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2542. 

  2543.         painter = QPainter()

  2544.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2545. 

  2546.         painter.begin(rack_imgL)

  2547.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2548.         painter.setBrush(pad_color)

  2549.         painter.drawRect(fillRect)

  2550.         painter.end()

  2551.         rack_pixmapL = QPixmap(rack_imgL)

  2552.         self.imgL_palette = QPalette()

  2553.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2554.         self.ui.pad_left.setPalette(self.imgL_palette)

  2555.         self.ui.pad_left.setAutoFillBackground(True)

  2556. 

  2557.         painter.begin(rack_imgR)

  2558.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2559.         painter.setBrush(pad_color)

  2560.         painter.drawRect(fillRect)

  2561.         painter.end()

  2562.         rack_pixmapR = QPixmap(rack_imgR)

  2563.         self.imgR_palette = QPalette()

  2564.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2565.         self.ui.pad_right.setPalette(self.imgR_palette)

  2566.         self.ui.pad_right.setAutoFillBackground(True)

  2567. 

  2568.     # --------------------------------------------------------------------------------------------------------

  2569.     # paint event

  2570. 

  2571.     #def paintEvent(self, event):

  2572.         #QMainWindow.paintEvent(self, event)

  2573. 

  2574.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2575.             #return

  2576. 

  2577.         #painter = QPainter(self)

  2578.         #painter.setBrush(QColor(36, 36, 36))

  2579.         #painter.setPen(QColor(62, 62, 62))

  2580.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2581. 

  2582.     # --------------------------------------------------------------------------------------------------------

  2583.     # close event

  2584. 

  2585.     def shouldIgnoreClose(self):

  2586.         if self.host.isControl or self.host.isPlugin:

  2587.             return False

  2588.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2589.             return False

  2590.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2591.             return QMessageBox.question(self, self.tr("Quit"),

  2592.                                               self.tr("Are you sure you want to quit Carla?"),

  2593.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2594.         return False

  2595. 

  2596.     def closeEvent(self, event):

  2597.         if self.shouldIgnoreClose():

  2598.             event.ignore()

  2599.             return

  2600. 

  2601.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2602.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2603.             self.fMacClosingHelper = False

  2604.             event.ignore()

  2605. 

  2606.             for i in reversed(range(self.fPluginCount)):

  2607.                 self.host.show_custom_ui(i, False)

  2608. 

  2609.             QTimer.singleShot(100, self.close)

  2610.             return

  2611. 

  2612.         self.killTimers()

  2613.         self.saveSettings()

  2614. 

  2615.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2616.             if not self.slot_engineStop(True):

  2617.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2618.                 event.ignore()

  2619.                 return

  2620. 

  2621.         QMainWindow.closeEvent(self, event)

  2622. 

  2623. # ------------------------------------------------------------------------------------------------

  2624. # Canvas callback

  2625. 

  2626. def canvasCallback(action, value1, value2, valueStr):

  2627.     host = gCarla.gui.host

  2628. 

  2629.     if action == patchcanvas.ACTION_GROUP_INFO:

  2630.         pass

  2631. 

  2632.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2633.         pass

  2634. 

  2635.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2636.         groupId = value1

  2637.         patchcanvas.splitGroup(groupId)

  2638.         gCarla.gui.updateMiniCanvasLater()

  2639. 

  2640.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2641.         groupId = value1

  2642.         patchcanvas.joinGroup(groupId)

  2643.         gCarla.gui.updateMiniCanvasLater()

  2644. 

  2645.     elif action == patchcanvas.ACTION_PORT_INFO:

  2646.         pass

  2647. 

  2648.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2649.         pass

  2650. 

  2651.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2652.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2653. 

  2654.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2655.             print("Connection failed:", host.get_last_error())

  2656. 

  2657.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2658.         connectionId = value1

  2659. 

  2660.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2661.             print("Disconnect failed:", host.get_last_error())

  2662. 

  2663.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2664.         pluginId = value1

  2665. 

  2666.         if not host.clone_plugin(pluginId):

  2667.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2668.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2669. 

  2670.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2671.         pluginId = value1

  2672.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2673. 

  2674.         if pwidget is not None:

  2675.             pwidget.showEditDialog()

  2676. 

  2677.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2678.         pluginId = value1

  2679.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2680. 

  2681.         if pwidget is not None:

  2682.             pwidget.showRenameDialog()

  2683. 

  2684.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2685.         pluginId = value1

  2686.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2687. 

  2688.         if pwidget is not None:

  2689.             pwidget.showReplaceDialog()

  2690. 

  2691.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2692.         pluginId = value1

  2693. 

  2694.         if not host.remove_plugin(pluginId):

  2695.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2696.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2697. 

  2698.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2699.         pluginId = value1

  2700.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2701. 

  2702.         if pwidget is not None:

  2703.             pwidget.showCustomUI()

  2704. 

  2705.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2706.         gCarla.gui.showPluginActionsMenu()

  2707. 

  2708.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2709.         # FIXME

  2710.         if gCarla.gui.fPluginCount == 0: return

  2711.         pluginId = value1

  2712.         width, height = [int(v) for v in valueStr.split(":")]

  2713.         return host.render_inline_display(pluginId, width, height)

  2714. 

  2715. # ------------------------------------------------------------------------------------------------------------

  2716. # Engine callback

  2717. 

  2718. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2719.     # kdevelop likes this :)

  2720.     if False: host = CarlaHostNull()

  2721. 

  2722.     valueStr = charPtrToString(valueStr)

  2723. 

  2724.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2725.         host.processMode   = value1

  2726.         host.transportMode = value2

  2727.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2728.         host.processMode   = value1

  2729.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2730.         host.transportMode  = value1

  2731.         host.transportExtra = valueStr

  2732. 

  2733.     if action == ENGINE_CALLBACK_DEBUG:

  2734.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2735.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2736.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2737.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2738.         host.PluginRemovedCallback.emit(pluginId)

  2739.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2740.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2741.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2742.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2743.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2744.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2745.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2746.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2747.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2748.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2749.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2750.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2751.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2752.         host.ProgramChangedCallback.emit(pluginId, value1)

  2753.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2754.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2755.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2756.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2757.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2758.         host.UiStateChangedCallback.emit(pluginId, value1)

  2759.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2760.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2761.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2762.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2763.     elif action == ENGINE_CALLBACK_UPDATE:

  2764.         host.UpdateCallback.emit(pluginId)

  2765.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2766.         host.ReloadInfoCallback.emit(pluginId)

  2767.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2768.         host.ReloadParametersCallback.emit(pluginId)

  2769.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2770.         host.ReloadProgramsCallback.emit(pluginId)

  2771.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2772.         host.ReloadAllCallback.emit(pluginId)

  2773.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2774.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2775.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2776.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2777.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2778.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2779.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2780.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2781.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2782.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2783.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2784.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2785.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  2786.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  2787.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  2788.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  2789.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  2790.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  2791.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  2792.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  2793.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2794.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2795.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2796.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2797.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2798.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2799.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2800.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2801.         host.EngineStoppedCallback.emit()

  2802.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2803.         host.ProcessModeChangedCallback.emit(value1)

  2804.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2805.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2806.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2807.         host.BufferSizeChangedCallback.emit(value1)

  2808.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2809.         host.SampleRateChangedCallback.emit(valuef)

  2810.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2811.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2812.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2813.         host.ProjectLoadFinishedCallback.emit()

  2814.     elif action == ENGINE_CALLBACK_NSM:

  2815.         host.NSMCallback.emit(value1, value2, valueStr)

  2816.     elif action == ENGINE_CALLBACK_IDLE:

  2817.         QApplication.processEvents()

  2818.     elif action == ENGINE_CALLBACK_INFO:

  2819.         host.InfoCallback.emit(valueStr)

  2820.     elif action == ENGINE_CALLBACK_ERROR:

  2821.         host.ErrorCallback.emit(valueStr)

  2822.     elif action == ENGINE_CALLBACK_QUIT:

  2823.         host.QuitCallback.emit()

  2824.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  2825.         host.InlineDisplayRedrawCallback.emit(pluginId)

  2826.     else:

  2827.         print("unhandled action", action)

  2828. 

  2829. # ------------------------------------------------------------------------------------------------------------

  2830. # File callback

  2831. 

  2832. def fileCallback(ptr, action, isDir, title, filter):

  2833.     title  = charPtrToString(title)

  2834.     filter = charPtrToString(filter)

  2835. 

  2836.     if action == FILE_CALLBACK_OPEN:

  2837.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2838.     elif action == FILE_CALLBACK_SAVE:

  2839.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2840.     else:

  2841.         ret, ok = ("", "")

  2842. 

  2843.     # FIXME use ok value, test if it works as expected

  2844.     if not ret:

  2845.         return None

  2846. 

  2847.     # FIXME

  2848.     global fileRet

  2849.     fileRet = c_char_p(ret.encode("utf-8"))

  2850.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2851.     return retval.contents.value

  2852. 

  2853. # ------------------------------------------------------------------------------------------------------------

  2854. # Init host

  2855. 

  2856. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2857.     pathBinaries, pathResources = getPaths(libPrefix)

  2858. 

  2859.     # --------------------------------------------------------------------------------------------------------

  2860.     # Check if we should open main lib as local or global

  2861. 

  2862.     settings = QSettings("falkTX", "Carla2")

  2863. 

  2864.     try:

  2865.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2866.     except:

  2867.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2868. 

  2869.     # --------------------------------------------------------------------------------------------------------

  2870.     # Fail if binary dir is not found

  2871. 

  2872.     if not os.path.exists(pathBinaries):

  2873.         if failError:

  2874.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2875.             sys.exit(1)

  2876.         return

  2877. 

  2878.     # --------------------------------------------------------------------------------------------------------

  2879.     # Set Carla library name

  2880. 

  2881.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2882.     libname   = os.path.join(pathBinaries, libname)

  2883.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2884. 

  2885.     # --------------------------------------------------------------------------------------------------------

  2886.     # Print info

  2887. 

  2888.     print("Carla %s started, status:" % VERSION)

  2889.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2890.     print("  Qt version:     %s" % QT_VERSION_STR)

  2891.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2892.     print("  Binary dir:     %s" % pathBinaries)

  2893.     print("  Resources dir:  %s" % pathResources)

  2894. 

  2895.     # --------------------------------------------------------------------------------------------------------

  2896.     # Init host

  2897. 

  2898.     if failError:

  2899.         # no try

  2900.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2901.     else:

  2902.         try:

  2903.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2904.         except:

  2905.             host = CarlaHostQtNull()

  2906. 

  2907.     host.isControl = isControl

  2908.     host.isPlugin  = isPlugin

  2909. 

  2910.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2911.     host.set_file_callback(fileCallback)

  2912. 

  2913.     # If it's a plugin the paths are already set

  2914.     if not isPlugin:

  2915.         host.pathBinaries  = pathBinaries

  2916.         host.pathResources = pathResources

  2917.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2918.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2919. 

  2920.         if not isControl:

  2921.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2922. 

  2923.     # --------------------------------------------------------------------------------------------------------

  2924.     # Init utils

  2925. 

  2926.     gCarla.utils = CarlaUtils(utilsname)

  2927.     gCarla.utils.set_process_name(os.path.basename(initName))

  2928. 

  2929.     try:

  2930.         sys.stdout.flush()

  2931.     except:

  2932.         pass

  2933. 

  2934.     sys.stdout = CarlaPrint(False)

  2935.     sys.stderr = CarlaPrint(True)

  2936.     sys.excepthook = sys_excepthook

  2937. 

  2938.     # --------------------------------------------------------------------------------------------------------

  2939.     # Done

  2940. 

  2941.     return host

  2942. 

  2943. # ------------------------------------------------------------------------------------------------------------

  2944. # Load host settings

  2945. 

  2946. def loadHostSettings(host):

  2947.     # kdevelop likes this :)

  2948.     if False: host = CarlaHostNull()

  2949. 

  2950.     settings = QSettings("falkTX", "Carla2")

  2951. 

  2952.     try:

  2953.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2954.     except:

  2955.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2956. 

  2957.     try:

  2958.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2959.     except:

  2960.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2961. 

  2962.     try:

  2963.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2964.     except:

  2965.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2966. 

  2967.     try:

  2968.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2969.     except:

  2970.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2971. 

  2972.     try:

  2973.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2974.     except:

  2975.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2976. 

  2977.     try:

  2978.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2979.     except:

  2980.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2981. 

  2982.     try:

  2983.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2984.     except:

  2985.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2986. 

  2987.     try:

  2988.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2989.     except:

  2990.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2991. 

  2992.     try:

  2993.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2994.     except:

  2995.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2996. 

  2997.     try:

  2998.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2999.     except:

  3000.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  3001. 

  3002.     try:

  3003.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  3004.     except:

  3005.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  3006. 

  3007.     try:

  3008.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  3009.     except:

  3010.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  3011. 

  3012.     try:

  3013.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  3014.     except:

  3015.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  3016. 

  3017.     if host.isPlugin:

  3018.         return

  3019. 

  3020.     try:

  3021.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  3022.     except:

  3023.         host.transportExtra = ""

  3024. 

  3025.     # enums

  3026.     if host.audioDriverForced is None:

  3027.         try:

  3028.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  3029.         except:

  3030.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  3031. 

  3032.     if not host.processModeForced:

  3033.         try:

  3034.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  3035.         except:

  3036.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  3037. 

  3038.     host.nextProcessMode = host.processMode

  3039. 

  3040.     # --------------------------------------------------------------------------------------------------------

  3041.     # fix things if needed

  3042. 

  3043.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3044.         if LADISH_APP_NAME:

  3045.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3046.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3047. 

  3048.         else:

  3049.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3050. 

  3051.     if gCarla.nogui:

  3052.         host.showLogs = False

  3053. 

  3054.     # --------------------------------------------------------------------------------------------------------

  3055.     # run headless host now if nogui option enabled

  3056. 

  3057.     if gCarla.nogui:

  3058.         runHostWithoutUI(host)

  3059. 

  3060. # ------------------------------------------------------------------------------------------------------------

  3061. # Set host settings

  3062. 

  3063. def setHostSettings(host):

  3064.     # kdevelop likes this :)

  3065.     if False: host = CarlaHostNull()

  3066. 

  3067.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3068.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3069.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3070.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3071.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3072.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3073.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3074. 

  3075.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3076.         return

  3077. 

  3078.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3079.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3080.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3081. 

  3082. # ------------------------------------------------------------------------------------------------------------

  3083. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3084. 

  3085. def setEngineSettings(host):

  3086.     # kdevelop likes this :)

  3087.     if False: host = CarlaHostNull()

  3088. 

  3089.     # --------------------------------------------------------------------------------------------------------

  3090.     # do nothing if control

  3091. 

  3092.     if host.isControl:

  3093.         return "Control"

  3094. 

  3095.     # --------------------------------------------------------------------------------------------------------

  3096. 

  3097.     settings = QSettings("falkTX", "Carla2")

  3098. 

  3099.     # --------------------------------------------------------------------------------------------------------

  3100.     # main settings

  3101. 

  3102.     setHostSettings(host)

  3103. 

  3104.     # --------------------------------------------------------------------------------------------------------

  3105.     # file paths

  3106. 

  3107.     FILE_PATH_AUDIO = toList(settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO))

  3108.     FILE_PATH_MIDI  = toList(settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI))

  3109. 

  3110.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3111.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3112. 

  3113.     # --------------------------------------------------------------------------------------------------------

  3114.     # plugin paths

  3115. 

  3116.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  3117.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  3118.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  3119.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  3120.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  3121.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  3122.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  3123. 

  3124.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3125.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3126.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3127.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3128.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3129.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3130.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3131. 

  3132.     # --------------------------------------------------------------------------------------------------------

  3133.     # don't continue if plugin

  3134. 

  3135.     if host.isPlugin:

  3136.         return "Plugin"

  3137. 

  3138.     # --------------------------------------------------------------------------------------------------------

  3139.     # osc settings

  3140. 

  3141.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3142. 

  3143.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3144.         portNumTCP = -1

  3145.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3146.         portNumTCP = 0

  3147.     else:

  3148.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3149. 

  3150.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3151.         portNumUDP = -1

  3152.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3153.         portNumUDP = 0

  3154.     else:

  3155.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3156. 

  3157.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3158.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3159.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3160. 

  3161.     # --------------------------------------------------------------------------------------------------------

  3162.     # wine settings

  3163. 

  3164.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3165.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3166.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3167.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3168.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3169.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3170. 

  3171.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3172.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3173.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3174.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3175.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3176.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3177. 

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

  3179.     # driver and device settings

  3180. 

  3181.     # driver name

  3182.     if host.audioDriverForced is not None:

  3183.         audioDriver = host.audioDriverForced

  3184.     else:

  3185.         try:

  3186.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3187.         except:

  3188.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3189. 

  3190.     # driver options

  3191.     try:

  3192.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3193.     except:

  3194.         audioDevice = ""

  3195. 

  3196.     try:

  3197.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3198.     except:

  3199.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3200. 

  3201.     try:

  3202.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3203.     except:

  3204.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3205. 

  3206.     try:

  3207.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3208.     except:

  3209.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3210. 

  3211.     # Only setup audio things if engine is not running

  3212.     if not host.is_engine_running():

  3213.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3214.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3215. 

  3216.         if not audioDriver.startswith("JACK"):

  3217.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3218.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3219.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3220. 

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

  3222.     # fix things if needed

  3223. 

  3224.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3225.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3226.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3227. 

  3228.     # --------------------------------------------------------------------------------------------------------

  3229.     # return selected driver name

  3230. 

  3231.     return audioDriver

  3232. 

  3233. # ------------------------------------------------------------------------------------------------------------

  3234. # Run Carla without showing UI

  3235. 

  3236. def runHostWithoutUI(host):

  3237.     # kdevelop likes this :)

  3238.     if False: host = CarlaHostNull()

  3239. 

  3240.     # --------------------------------------------------------------------------------------------------------

  3241.     # Some initial checks

  3242. 

  3243.     if not gCarla.nogui:

  3244.         return

  3245. 

  3246.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3247. 

  3248.     if not projectFile:

  3249.         print("Carla no-gui mode can only be used together with a project file.")

  3250.         sys.exit(1)

  3251. 

  3252.     # --------------------------------------------------------------------------------------------------------

  3253.     # Additional imports

  3254. 

  3255.     from time import sleep

  3256. 

  3257.     # --------------------------------------------------------------------------------------------------------

  3258.     # Init engine

  3259. 

  3260.     audioDriver = setEngineSettings(host)

  3261.     if not host.engine_init(audioDriver, "Carla"):

  3262.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3263.         sys.exit(1)

  3264. 

  3265.     if not host.load_project(projectFile):

  3266.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3267.         host.engine_close()

  3268.         sys.exit(1)

  3269. 

  3270.     # --------------------------------------------------------------------------------------------------------

  3271.     # Idle

  3272. 

  3273.     print("Carla ready!")

  3274. 

  3275.     while host.is_engine_running() and not gCarla.term:

  3276.         host.engine_idle()

  3277.         sleep(0.0333) # 30 Hz

  3278. 

  3279.     # --------------------------------------------------------------------------------------------------------

  3280.     # Stop

  3281. 

  3282.     host.engine_close()

  3283.     sys.exit(0)

  3284. 

  3285. # ------------------------------------------------------------------------------------------------------------