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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) 2011-2021 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. # ------------------------------------------------------------------------------------------------------------

  25. # Imports (ctypes)

  26. 

  27. from ctypes import (

  28.     byref, pointer

  29. )

  30. 

  31. # ------------------------------------------------------------------------------------------------------------

  32. # Imports (PyQt5)

  33. 

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

  35. try:

  36.     from PyQt5.Qt import PYQT_VERSION

  37. except ImportError:

  38.     PYQT_VERSION = 0x50600

  39. 

  40. from PyQt5.QtCore import (

  41.     QT_VERSION, qCritical, QBuffer, QEventLoop, QFileInfo, QIODevice, QMimeData, QModelIndex, QPointF, QTimer, QEvent

  42. )

  43. from PyQt5.QtGui import (

  44.     QImage, QImageWriter, QPainter, QPalette, QBrush

  45. )

  46. from PyQt5.QtWidgets import (

  47.     QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QGraphicsView, QMainWindow

  48. )

  49. 

  50. # ------------------------------------------------------------------------------------------------------------

  51. # Imports (Custom)

  52. 

  53. import ui_carla_host

  54. 

  55. from carla_app import *

  56. from carla_backend_qt import CarlaHostQtDLL, CarlaHostQtNull

  57. from carla_database import *

  58. from carla_settings import *

  59. from carla_utils import *

  60. from carla_widgets import *

  61. 

  62. from patchcanvas import patchcanvas

  63. from widgets.digitalpeakmeter import DigitalPeakMeter

  64. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  65. 

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

  67. # Try Import OpenGL

  68. 

  69. try:

  70.     from PyQt5.QtOpenGL import QGLWidget

  71.     hasGL = True

  72. except:

  73.     hasGL = False

  74. 

  75. # ------------------------------------------------------------------------------------------------------------

  76. # Safe exception hook, needed for PyQt5

  77. 

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

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

  80. 

  81. # ------------------------------------------------------------------------------------------------------------

  82. # Session Management support

  83. 

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

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

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

  87. 

  88. # ------------------------------------------------------------------------------------------------------------

  89. # Small print helper

  90. 

  91. def processMode2Str(processMode):

  92.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  93.         return "Single client"

  94.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  95.         return "Multi client"

  96.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  97.         return "Continuous Rack"

  98.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  99.         return "Patchbay"

  100.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  101.         return "Bridge"

  102.     return "Unknown"

  103. 

  104. # ------------------------------------------------------------------------------------------------------------

  105. # Carla Print class

  106. 

  107. class CarlaPrint:

  108.     def __init__(self, err):

  109.         self.err = err

  110. 

  111.     def flush(self):

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

  113. 

  114.     def write(self, string):

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

  116. 

  117. # ------------------------------------------------------------------------------------------------------------

  118. # Host Window

  119. 

  120. class HostWindow(QMainWindow):

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

  122.     # signals

  123.     SIGTERM = pyqtSignal()

  124.     SIGUSR1 = pyqtSignal()

  125. 

  126.     # CustomActions

  127.     CUSTOM_ACTION_NONE         = 0

  128.     CUSTOM_ACTION_APP_CLOSE    = 1

  129.     CUSTOM_ACTION_PROJECT_LOAD = 2

  130. 

  131.     # --------------------------------------------------------------------------------------------------------

  132. 

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

  134.         QMainWindow.__init__(self, parent)

  135.         self.host = host

  136.         self.ui = ui_carla_host.Ui_CarlaHostW()

  137.         self.ui.setupUi(self)

  138.         gCarla.gui = self

  139. 

  140.         if False:

  141.             # kdevelop likes this :)

  142.             host = CarlaHostNull()

  143.             self.host = host

  144. 

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

  146. 

  147.         self.fParentOrSelf = parent or self

  148. 

  149.         # ----------------------------------------------------------------------------------------------------

  150.         # Internal stuff

  151. 

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

  153.         self.fIdleTimerFast = 0

  154.         self.fIdleTimerSlow = 0

  155. 

  156.         self.fLadspaRdfNeedsUpdate = True

  157.         self.fLadspaRdfList = []

  158. 

  159.         self.fPluginCount = 0

  160.         self.fPluginList  = []

  161. 

  162.         self.fPluginDatabaseDialog = None

  163.         self.fFavoritePlugins = []

  164. 

  165.         self.fProjectFilename  = ""

  166.         self.fIsProjectLoading = False

  167.         self.fCurrentlyRemovingAllPlugins = False

  168. 

  169.         self.fLastTransportBPM   = 0.0

  170.         self.fLastTransportFrame = 0

  171.         self.fLastTransportState = False

  172.         self.fBufferSize         = 0

  173.         self.fSampleRate         = 0.0

  174.         self.fOscAddressTCP      = ""

  175.         self.fOscAddressUDP      = ""

  176. 

  177.         if MACOS:

  178.             self.fMacClosingHelper = True

  179. 

  180.         # CancelableActionCallback Box

  181.         self.fCancelableActionBox = None

  182. 

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

  184.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  185. 

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

  187.         self.fFirstEngineInit = True

  188. 

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

  190.         self.fSavedSettings = {}

  191. 

  192.         # true if NSM server handles our window management

  193.         self.fWindowCloseHideGui = False

  194. 

  195.         if host.isControl:

  196.             self.fClientName         = "Carla-Control"

  197.             self.fSessionManagerName = "Control"

  198.         elif host.isPlugin:

  199.             self.fClientName         = "Carla-Plugin"

  200.             self.fSessionManagerName = "Plugin"

  201.         elif LADISH_APP_NAME:

  202.             self.fClientName         = LADISH_APP_NAME

  203.             self.fSessionManagerName = "LADISH"

  204.         elif NSM_URL and host.nsmOK:

  205.             self.fClientName         = "Carla.tmp"

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

  207.             self.fWindowCloseHideGui = True

  208.         else:

  209.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  210.             self.fSessionManagerName = ""

  211. 

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

  213.         # Internal stuff (patchbay)

  214. 

  215.         self.fPeaksCleared = True

  216. 

  217.         self.fExternalPatchbay = False

  218.         self.fSelectedPlugins  = []

  219. 

  220.         self.fCanvasWidth  = 0

  221.         self.fCanvasHeight = 0

  222.         self.fMiniCanvasUpdateTimeout = 0

  223. 

  224.         self.fWithCanvas = withCanvas

  225. 

  226.         # ----------------------------------------------------------------------------------------------------

  227.         # Internal stuff (logs)

  228. 

  229.         self.autoscrollOnNewLog = True

  230.         self.lastLogSliderPos = 0

  231. 

  232.         # ----------------------------------------------------------------------------------------------------

  233.         # Set up GUI (engine stopped)

  234. 

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

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

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

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

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

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

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

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

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

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

  245. 

  246.             if self.host.isControl:

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

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

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

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

  251.             else:

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

  253. 

  254.                 if not withCanvas:

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

  256. 

  257.         else:

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

  259. 

  260.             if WINDOWS:

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

  262. 

  263.         if self.host.isControl:

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

  265.         else:

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

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

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

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

  270. 

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

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

  273. 

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

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

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

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

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

  279. 

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

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

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

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

  284. 

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

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

  287. 

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

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

  290. 

  291.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  309.             self.ui.tw_miniCanvas.hide()

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

  311.             if WINDOWS:

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

  313. 

  314.         # ----------------------------------------------------------------------------------------------------

  315.         # Set up GUI (disk)

  316. 

  317.         exts = gCarla.utils.get_supported_file_extensions()

  318. 

  319.         self.fDirModel = QFileSystemModel(self)

  320.         self.fDirModel.setRootPath(HOME)

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

  322. 

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

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

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

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

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

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

  329. 

  330.         # ----------------------------------------------------------------------------------------------------

  331.         # Set up GUI (transport)

  332. 

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

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

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

  336. 

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

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

  339. 

  340.         if minLabelWidth < labelTimeWidth:

  341.             minLabelWidth = labelTimeWidth

  342.         if minLabelWidth < labelBBTWidth:

  343.             minLabelWidth = labelBBTWidth

  344. 

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

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

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

  348. 

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

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

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

  352. 

  353.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  366. 

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

  368. 

  369.         # ----------------------------------------------------------------------------------------------------

  370.         # Set up GUI (rack)

  371. 

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

  373. 

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

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

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

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

  378. 

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

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

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

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

  383. 

  384.         self.updateStyle()

  385. 

  386.         self.ui.rack.setStyleSheet("""

  387.           CarlaRackList#CarlaRackList {

  388.             background-color: black;

  389.           }

  390.         """)

  391. 

  392.         # ----------------------------------------------------------------------------------------------------

  393.         # Set up GUI (patchbay)

  394. 

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

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

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

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

  399. 

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

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

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

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

  404. 

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

  406.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  408. 

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

  410. 

  411.         self.ui.miniCanvasPreview.setRealParent(self)

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

  413. 

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

  415.         # Set up GUI (logs)

  416. 

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

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

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

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

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

  422. 

  423.         # ----------------------------------------------------------------------------------------------------

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

  425. 

  426.         if MACOS:

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

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

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

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

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

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

  433. 

  434.         # ----------------------------------------------------------------------------------------------------

  435.         # Load Settings

  436. 

  437.         self.loadSettings(True)

  438. 

  439.         # ----------------------------------------------------------------------------------------------------

  440.         # Set-up Canvas

  441. 

  442.         if withCanvas:

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

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

  445. 

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

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

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

  449. 

  450.             self.setupCanvas()

  451. 

  452.         # ----------------------------------------------------------------------------------------------------

  453.         # Set-up Icons

  454. 

  455.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  456.             self.ui.act_file_connect.setIcon(getIcon('network-connect', 16, 'svgz'))

  457.             self.ui.act_file_refresh.setIcon(getIcon('view-refresh', 16, 'svgz'))

  458.             self.ui.act_file_new.setIcon(getIcon('document-new', 16, 'svgz'))

  459.             self.ui.act_file_open.setIcon(getIcon('document-open', 16, 'svgz'))

  460.             self.ui.act_file_save.setIcon(getIcon('document-save', 16, 'svgz'))

  461.             self.ui.act_file_save_as.setIcon(getIcon('document-save-as', 16, 'svgz'))

  462.             self.ui.act_file_quit.setIcon(getIcon('application-exit', 16, 'svgz'))

  463.             self.ui.act_engine_start.setIcon(getIcon('media-playback-start', 16, 'svgz'))

  464.             self.ui.act_engine_stop.setIcon(getIcon('media-playback-stop', 16, 'svgz'))

  465.             self.ui.act_engine_panic.setIcon(getIcon('dialog-warning', 16, 'svgz'))

  466.             self.ui.act_engine_config.setIcon(getIcon('configure', 16, 'svgz'))

  467.             self.ui.act_plugin_add.setIcon(getIcon('list-add', 16, 'svgz'))

  468.             self.ui.act_plugin_add_jack.setIcon(getIcon('list-add', 16, 'svgz'))

  469.             self.ui.act_plugin_remove_all.setIcon(getIcon('edit-delete', 16, 'svgz'))

  470.             self.ui.act_canvas_arrange.setIcon(getIcon('view-sort-ascending', 16, 'svgz'))

  471.             self.ui.act_canvas_refresh.setIcon(getIcon('view-refresh', 16, 'svgz'))

  472.             self.ui.act_canvas_zoom_fit.setIcon(getIcon('zoom-fit-best', 16, 'svgz'))

  473.             self.ui.act_canvas_zoom_in.setIcon(getIcon('zoom-in', 16, 'svgz'))

  474.             self.ui.act_canvas_zoom_out.setIcon(getIcon('zoom-out', 16, 'svgz'))

  475.             self.ui.act_canvas_zoom_100.setIcon(getIcon('zoom-original', 16, 'svgz'))

  476.             self.ui.act_settings_configure.setIcon(getIcon('configure', 16, 'svgz'))

  477.             self.ui.b_disk_add.setIcon(getIcon('list-add', 16, 'svgz'))

  478.             self.ui.b_disk_remove.setIcon(getIcon('list-remove', 16, 'svgz'))

  479.             self.ui.b_transport_play.setIcon(getIcon('media-playback-start', 16, 'svgz'))

  480.             self.ui.b_transport_stop.setIcon(getIcon('media-playback-stop', 16, 'svgz'))

  481.             self.ui.b_transport_backwards.setIcon(getIcon('media-seek-backward', 16, 'svgz'))

  482.             self.ui.b_transport_forwards.setIcon(getIcon('media-seek-forward', 16, 'svgz'))

  483. 

  484.         # ----------------------------------------------------------------------------------------------------

  485.         # Connect actions to functions

  486. 

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

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

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

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

  491. 

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

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

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

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

  496. 

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

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

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

  500. 

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

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

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

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

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

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

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

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

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

  510. 

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

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

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

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

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

  516. 

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

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

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

  520. 

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

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

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

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

  525. 

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

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

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

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

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

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

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

  533. 

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

  535. 

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

  537. 

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

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

  540. 

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

  542. 

  543.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  563. 

  564.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  565.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  566. 

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

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

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

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

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

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

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

  574. 

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

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

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

  578. 

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

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

  581. 

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

  583. 

  584.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

  598. 

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

  600. 

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

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

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

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

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

  606. 

  607.         # ----------------------------------------------------------------------------------------------------

  608.         # Final setup

  609. 

  610.         self.ui.text_logs.clear()

  611.         self.slot_logButtonsState(False)

  612.         self.setProperWindowTitle()

  613. 

  614.         # Disable non-supported features

  615.         features = gCarla.utils.get_supported_features()

  616. 

  617.         if "link" not in features:

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

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

  620. 

  621.         if "juce" not in features:

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

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

  624. 

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

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

  627.             self.startTimers()

  628. 

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

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

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

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

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

  634. 

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

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

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

  638. 

  639.         # Load initial project file if set

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

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

  642. 

  643.             if projectFile:

  644.                 self.loadProjectLater(projectFile)

  645. 

  646.         # For NSM we wait for the open message

  647.         if NSM_URL and host.nsmOK:

  648.             host.nsm_ready(NSM_CALLBACK_INIT)

  649.             return

  650. 

  651.         if not host.isControl:

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

  653. 

  654.     # --------------------------------------------------------------------------------------------------------

  655.     # Manage visibility state, needed for NSM

  656. 

  657.     def hideForNSM(self):

  658.         for pitem in reversed(self.fPluginList):

  659.             if pitem is None:

  660.                 continue

  661.             pitem.getWidget().hideCustomUI()

  662.         self.hide()

  663. 

  664.     def showIfNeeded(self):

  665.         if self.host.nsmOK:

  666.             self.ui.act_file_quit.setText(self.tr("Hide"))

  667.             QApplication.instance().setQuitOnLastWindowClosed(False)

  668.         else:

  669.             self.show()

  670. 

  671.     # --------------------------------------------------------------------------------------------------------

  672.     # Setup

  673. 

  674.     def compactPlugin(self, pluginId):

  675.         if pluginId > self.fPluginCount:

  676.             return

  677. 

  678.         pitem = self.fPluginList[pluginId]

  679. 

  680.         if pitem is None:

  681.             return

  682. 

  683.         pitem.recreateWidget(True)

  684. 

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

  686.         if pluginId > self.fPluginCount:

  687.             return

  688. 

  689.         pitem = self.fPluginList[pluginId]

  690. 

  691.         if pitem is None:

  692.             return

  693. 

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

  695.         pitem.recreateWidget(newColor = color)

  696. 

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

  698.         if pluginId > self.fPluginCount:

  699.             return

  700. 

  701.         pitem = self.fPluginList[pluginId]

  702. 

  703.         if pitem is None:

  704.             return

  705. 

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

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

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

  709.         else:

  710.             pitem.recreateWidget(newSkin = skin)

  711. 

  712.     def findPluginInPatchbay(self, pluginId):

  713.         if pluginId > self.fPluginCount:

  714.             return

  715. 

  716.         if self.fExternalPatchbay:

  717.             self.slot_canvasShowInternal()

  718. 

  719.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  721.             if not patchcanvas.focusGroupUsingGroupName(name):

  722.                 return

  723. 

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

  725. 

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

  727.         if pluginIdA == pluginIdB:

  728.             return

  729.         if pluginIdA < 0 or pluginIdB < 0:

  730.             return

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

  732.             return

  733. 

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

  735. 

  736.         itemA = self.fPluginList[pluginIdA]

  737.         compactA = itemA.isCompacted()

  738.         guiShownA = itemA.isGuiShown()

  739. 

  740.         itemB = self.fPluginList[pluginIdB]

  741.         compactB = itemB.isCompacted()

  742.         guiShownB = itemB.isGuiShown()

  743. 

  744.         itemA.setPluginId(pluginIdA)

  745.         itemA.recreateWidget2(compactB, guiShownB)

  746. 

  747.         itemB.setPluginId(pluginIdB)

  748.         itemB.recreateWidget2(compactA, guiShownA)

  749. 

  750.         if self.fWithCanvas:

  751.             self.slot_canvasRefresh()

  752. 

  753.     def setLoadRDFsNeeded(self):

  754.         self.fLadspaRdfNeedsUpdate = True

  755. 

  756.     def setProperWindowTitle(self):

  757.         title = self.fClientName

  758. 

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

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

  761.         if self.fSessionManagerName:

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

  763. 

  764.         self.setWindowTitle(title)

  765. 

  766.     def updateBufferSize(self, newBufferSize):

  767.         if self.fBufferSize == newBufferSize:

  768.             return

  769.         self.fBufferSize = newBufferSize

  770.         self.ui.cb_buffer_size.clear()

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

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

  773. 

  774.     def updateSampleRate(self, newSampleRate):

  775.         if self.fSampleRate == newSampleRate:

  776.             return

  777.         self.fSampleRate = newSampleRate

  778.         self.ui.cb_sample_rate.clear()

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

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

  781.         self.refreshTransport(True)

  782. 

  783.     # --------------------------------------------------------------------------------------------------------

  784.     # Files

  785. 

  786.     def loadProjectNow(self):

  787.         if not self.fProjectFilename:

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

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

  790.             return

  791. 

  792.         self.projectLoadingStarted()

  793.         self.fIsProjectLoading = True

  794. 

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

  796.             self.fIsProjectLoading = False

  797.             self.projectLoadingFinished()

  798. 

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

  800.                              self.host.get_last_error(),

  801.                              QMessageBox.Ok, QMessageBox.Ok)

  802. 

  803.     def loadProjectLater(self, filename):

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

  805.         self.setProperWindowTitle()

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

  807. 

  808.     def saveProjectNow(self):

  809.         if not self.fProjectFilename:

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

  811. 

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

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

  814.                              self.host.get_last_error(),

  815.                              QMessageBox.Ok, QMessageBox.Ok)

  816.             return

  817. 

  818.     def projectLoadingStarted(self):

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

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

  821. 

  822.     def projectLoadingFinished(self):

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

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

  825. 

  826.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE or not self.fWithCanvas:

  827.             return

  828. 

  829.         if not self.loadExternalCanvasGroupPositionsIfNeeded(self.fProjectFilename):

  830.             QTimer.singleShot(1, self.slot_canvasRefresh)

  831. 

  832.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

  833.         extrafile = filename.rsplit(".",1)[0]+".json"

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

  835.             return False

  836. 

  837.         with open(filename, "r") as fh:

  838.             if "".join(fh.readlines(90)).find("<CARLA-PROJECT VERSION='2.0'>") < 0:

  839.                 return False

  840. 

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

  842.             try:

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

  844.             except:

  845.                 return False

  846. 

  847.         print("NOTICE: loading old-style canvas group positions via legacy json file")

  848.         patchcanvas.restoreGroupPositions(canvasdata)

  849.         QTimer.singleShot(1, self.slot_canvasRefresh)

  850.         return True

  851. 

  852.     # --------------------------------------------------------------------------------------------------------

  853.     # Files (menu actions)

  854. 

  855.     @pyqtSlot()

  856.     def slot_fileNew(self):

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

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

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

  860.             return

  861. 

  862.         self.pluginRemoveAll()

  863.         self.fProjectFilename = ""

  864.         self.setProperWindowTitle()

  865.         self.host.clear_project_filename()

  866. 

  867.     @pyqtSlot()

  868.     def slot_fileOpen(self):

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

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

  871. 

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

  873.         if not filename:

  874.             return

  875. 

  876.         newFile = True

  877. 

  878.         if self.fPluginCount > 0:

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

  880.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  882. 

  883.         if newFile:

  884.             self.pluginRemoveAll()

  885.             self.fProjectFilename = filename

  886.             self.setProperWindowTitle()

  887.             self.loadProjectNow()

  888.         else:

  889.             filenameOld = self.fProjectFilename

  890.             self.fProjectFilename = filename

  891.             self.loadProjectNow()

  892.             self.fProjectFilename = filenameOld

  893. 

  894.     @pyqtSlot()

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

  896.         if self.fProjectFilename and not saveAs:

  897.             return self.saveProjectNow()

  898. 

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

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

  901. 

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

  903.         if not filename:

  904.             return

  905. 

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

  907.             filename += ".carxp"

  908. 

  909.         if self.fProjectFilename != filename:

  910.             self.fProjectFilename = filename

  911.             self.setProperWindowTitle()

  912. 

  913.         self.saveProjectNow()

  914. 

  915.     @pyqtSlot()

  916.     def slot_fileSaveAs(self):

  917.         self.slot_fileSave(True)

  918. 

  919.     @pyqtSlot()

  920.     def slot_loadProjectNow(self):

  921.         self.loadProjectNow()

  922. 

  923.     # --------------------------------------------------------------------------------------------------------

  924.     # Engine (menu actions)

  925. 

  926.     @pyqtSlot()

  927.     def slot_engineStart(self):

  928.         audioDriver = setEngineSettings(self.host)

  929.         firstInit   = self.fFirstEngineInit

  930. 

  931.         self.fFirstEngineInit = False

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

  933. 

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

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

  936.                 settings = QSafeSettings()

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

  938.                 del settings

  939.                 if lastBpm >= 20.0:

  940.                     self.host.transport_bpm(lastBpm)

  941.             return

  942. 

  943.         elif firstInit:

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

  945.             return

  946. 

  947.         audioError = self.host.get_last_error()

  948. 

  949.         if audioError:

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

  951.         else:

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

  953. 

  954.     @pyqtSlot()

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

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

  957. 

  958.         if self.fPluginCount == 0 or not self.host.is_engine_running():

  959.             self.engineStopFinal()

  960.             return True

  961. 

  962.         if not forced:

  963.             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"

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

  965.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  966.             if ask != QMessageBox.Yes:

  967.                 return False

  968. 

  969.         return self.slot_engineStopTryAgain()

  970. 

  971.     @pyqtSlot()

  972.     def slot_engineConfig(self):

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

  974. 

  975.         if not dialog.exec_():

  976.             return

  977. 

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

  979. 

  980.         if self.host.is_engine_running():

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

  982.         else:

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

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

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

  986. 

  987.     @pyqtSlot()

  988.     def slot_engineStopTryAgain(self):

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

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

  991.             return False

  992. 

  993.         self.engineStopFinal()

  994.         return True

  995. 

  996.     def engineStopFinal(self):

  997.         patchcanvas.handleAllPluginsRemoved()

  998.         self.killTimers()

  999. 

  1000.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1001.             self.removeAllPlugins()

  1002.         else:

  1003.             self.fProjectFilename = ""

  1004.             self.setProperWindowTitle()

  1005.             if self.fPluginCount != 0:

  1006.                 self.fCurrentlyRemovingAllPlugins = True

  1007.                 self.projectLoadingStarted()

  1008. 

  1009.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1010.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1011.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1012. 

  1013.         if not self.host.engine_close():

  1014.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1015.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1016. 

  1017.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1018.             self.close()

  1019.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1020.             self.slot_engineStart()

  1021.             self.loadProjectNow()

  1022.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1023. 

  1024.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1025. 

  1026.     # --------------------------------------------------------------------------------------------------------

  1027.     # Engine (host callbacks)

  1028. 

  1029.     @pyqtSlot(int, int, int, int, float, str)

  1030.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

  1031.         self.ui.menu_PluginMacros.setEnabled(True)

  1032.         self.ui.menu_Canvas.setEnabled(True)

  1033.         self.ui.w_transport.setEnabled(True)

  1034. 

  1035.         self.ui.act_canvas_show_internal.blockSignals(True)

  1036.         self.ui.act_canvas_show_external.blockSignals(True)

  1037. 

  1038.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1039.             self.ui.act_canvas_show_internal.setChecked(True)

  1040.             self.ui.act_canvas_show_internal.setVisible(True)

  1041.             self.ui.act_canvas_show_external.setChecked(False)

  1042.             self.ui.act_canvas_show_external.setVisible(True)

  1043.             self.fExternalPatchbay = False

  1044.         else:

  1045.             self.ui.act_canvas_show_internal.setChecked(False)

  1046.             self.ui.act_canvas_show_internal.setVisible(False)

  1047.             self.ui.act_canvas_show_external.setChecked(True)

  1048.             self.ui.act_canvas_show_external.setVisible(False)

  1049.             self.fExternalPatchbay = not self.host.isPlugin

  1050. 

  1051.         self.ui.act_canvas_show_internal.blockSignals(False)

  1052.         self.ui.act_canvas_show_external.blockSignals(False)

  1053. 

  1054.         if not (self.host.isControl or self.host.isPlugin):

  1055.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1056.             self.ui.act_file_save.setEnabled(canSave)

  1057.             self.ui.act_engine_start.setEnabled(False)

  1058.             self.ui.act_engine_stop.setEnabled(True)

  1059. 

  1060.         if not self.host.isPlugin:

  1061.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1062. 

  1063.         if self.host.isPlugin or not self.fSessionManagerName:

  1064.             self.ui.act_file_open.setEnabled(True)

  1065.             self.ui.act_file_save_as.setEnabled(True)

  1066. 

  1067.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1068.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1069. 

  1070.         if self.ui.cb_transport_link.isEnabled():

  1071.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1072. 

  1073.         self.updateBufferSize(bufferSize)

  1074.         self.updateSampleRate(int(sampleRate))

  1075.         self.refreshRuntimeInfo(0.0, 0)

  1076.         self.startTimers()

  1077. 

  1078.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1079.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1080.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1081.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1082.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1083. 

  1084.     @pyqtSlot()

  1085.     def slot_handleEngineStoppedCallback(self):

  1086.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1087. 

  1088.         if self.fWithCanvas:

  1089.             patchcanvas.clear()

  1090. 

  1091.         self.killTimers()

  1092. 

  1093.         # just in case

  1094.         self.removeAllPlugins()

  1095.         self.refreshRuntimeInfo(0.0, 0)

  1096. 

  1097.         self.ui.menu_PluginMacros.setEnabled(False)

  1098.         self.ui.menu_Canvas.setEnabled(False)

  1099.         self.ui.w_transport.setEnabled(False)

  1100. 

  1101.         if not (self.host.isControl or self.host.isPlugin):

  1102.             self.ui.act_file_save.setEnabled(False)

  1103.             self.ui.act_engine_start.setEnabled(True)

  1104.             self.ui.act_engine_stop.setEnabled(False)

  1105. 

  1106.         if self.host.isPlugin or not self.fSessionManagerName:

  1107.             self.ui.act_file_open.setEnabled(False)

  1108.             self.ui.act_file_save_as.setEnabled(False)

  1109. 

  1110.     @pyqtSlot(int, str)

  1111.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1112.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1113. 

  1114.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1115.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1116. 

  1117.     @pyqtSlot(int)

  1118.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1119.         self.updateBufferSize(newBufferSize)

  1120. 

  1121.     @pyqtSlot(float)

  1122.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1123.         self.updateSampleRate(int(newSampleRate))

  1124. 

  1125.     @pyqtSlot(int, bool, str)

  1126.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1127.         if self.fCancelableActionBox is not None:

  1128.             self.fCancelableActionBox.close()

  1129. 

  1130.         if started:

  1131.             self.fCancelableActionBox = QMessageBox(self)

  1132.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1133.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1134.             self.fCancelableActionBox.setText(action)

  1135.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1136.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1137.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1138.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1139.             self.fCancelableActionBox.show()

  1140. 

  1141.         else:

  1142.             self.fCancelableActionBox = None

  1143. 

  1144.     @pyqtSlot()

  1145.     def slot_canlableActionBoxClicked(self):

  1146.         self.host.cancel_engine_action()

  1147. 

  1148.     @pyqtSlot()

  1149.     def slot_handleProjectLoadFinishedCallback(self):

  1150.         self.fIsProjectLoading = False

  1151.         self.projectLoadingFinished()

  1152. 

  1153.     # --------------------------------------------------------------------------------------------------------

  1154.     # Plugins

  1155. 

  1156.     def removeAllPlugins(self):

  1157.         self.ui.act_plugin_remove_all.setEnabled(False)

  1158.         patchcanvas.handleAllPluginsRemoved()

  1159. 

  1160.         while self.ui.listWidget.takeItem(0):

  1161.             pass

  1162. 

  1163.         self.clearSideStuff()

  1164. 

  1165.         for pitem in self.fPluginList:

  1166.             if pitem is None:

  1167.                 continue

  1168. 

  1169.             pitem.close()

  1170.             del pitem

  1171. 

  1172.         self.fPluginCount = 0

  1173.         self.fPluginList  = []

  1174. 

  1175.     # --------------------------------------------------------------------------------------------------------

  1176.     # Plugins (menu actions)

  1177. 

  1178.     def showAddPluginDialog(self):

  1179.         if self.fPluginDatabaseDialog is None:

  1180.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host,

  1181.                                                          self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1182.         dialog = self.fPluginDatabaseDialog

  1183. 

  1184.         ret = dialog.exec_()

  1185. 

  1186.         if dialog.fFavoritePluginsChanged:

  1187.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1188. 

  1189.         if not ret:

  1190.             return

  1191. 

  1192.         if not self.host.is_engine_running():

  1193.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1194.             return

  1195. 

  1196.         btype    = dialog.fRetPlugin['build']

  1197.         ptype    = dialog.fRetPlugin['type']

  1198.         filename = dialog.fRetPlugin['filename']

  1199.         label    = dialog.fRetPlugin['label']

  1200.         uniqueId = dialog.fRetPlugin['uniqueId']

  1201.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1202. 

  1203.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1204. 

  1205.     def showAddJackAppDialog(self):

  1206.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1207. 

  1208.         if not dialog.exec_():

  1209.             return

  1210. 

  1211.         if not self.host.is_engine_running():

  1212.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1213.             return

  1214. 

  1215.         return dialog.getCommandAndFlags()

  1216. 

  1217.     @pyqtSlot()

  1218.     def slot_favoritePluginAdd(self):

  1219.         plugin = self.sender().data()

  1220. 

  1221.         if plugin is None:

  1222.             return

  1223. 

  1224.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1225.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1226.             CustomMessageBox(self,

  1227.                              QMessageBox.Critical,

  1228.                              self.tr("Error"),

  1229.                              self.tr("Failed to load plugin"),

  1230.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1231. 

  1232.     @pyqtSlot()

  1233.     def slot_showPluginActionsMenu(self):

  1234.         menu = QMenu(self)

  1235. 

  1236.         menu.addSection("Plugins")

  1237.         menu.addAction(self.ui.act_plugin_add)

  1238. 

  1239.         if len(self.fFavoritePlugins) != 0:

  1240.             fmenu = QMenu("Add from favorites", self)

  1241.             for p in self.fFavoritePlugins:

  1242.                 act = fmenu.addAction(p['name'])

  1243.                 act.setData(p)

  1244.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1245.             menu.addMenu(fmenu)

  1246. 

  1247.         menu.addAction(self.ui.act_plugin_remove_all)

  1248. 

  1249.         menu.addSection("All plugins (macros)")

  1250.         menu.addAction(self.ui.act_plugins_enable)

  1251.         menu.addAction(self.ui.act_plugins_disable)

  1252.         menu.addSeparator()

  1253.         menu.addAction(self.ui.act_plugins_volume100)

  1254.         menu.addAction(self.ui.act_plugins_mute)

  1255.         menu.addSeparator()

  1256.         menu.addAction(self.ui.act_plugins_wet100)

  1257.         menu.addAction(self.ui.act_plugins_bypass)

  1258.         menu.addSeparator()

  1259.         menu.addAction(self.ui.act_plugins_center)

  1260.         menu.addSeparator()

  1261.         menu.addAction(self.ui.act_plugins_compact)

  1262.         menu.addAction(self.ui.act_plugins_expand)

  1263. 

  1264.         menu.exec_(QCursor.pos())

  1265. 

  1266.     @pyqtSlot()

  1267.     def slot_pluginAdd(self):

  1268.         data = self.showAddPluginDialog()

  1269. 

  1270.         if data is None:

  1271.             return

  1272. 

  1273.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1274. 

  1275.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1276.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1277.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1278. 

  1279.     @pyqtSlot()

  1280.     def slot_confirmRemoveAll(self):

  1281.         if self.fPluginCount == 0:

  1282.             return

  1283. 

  1284.         if QMessageBox.question(self, self.tr("Remove All"),

  1285.                                       self.tr("Are you sure you want to remove all plugins?"),

  1286.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1287.             return

  1288. 

  1289.         self.pluginRemoveAll()

  1290. 

  1291.     def pluginRemoveAll(self):

  1292.         if self.fPluginCount == 0:

  1293.             return

  1294. 

  1295.         self.fCurrentlyRemovingAllPlugins = True

  1296.         self.projectLoadingStarted()

  1297. 

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

  1299.             self.projectLoadingFinished()

  1300.             self.fCurrentlyRemovingAllPlugins = False

  1301.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1302.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1303. 

  1304.     @pyqtSlot()

  1305.     def slot_jackAppAdd(self):

  1306.         data = self.showAddJackAppDialog()

  1307. 

  1308.         if data is None:

  1309.             return

  1310. 

  1311.         filename, name, label = data

  1312. 

  1313.         if not filename:

  1314.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1315.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1316.             return

  1317. 

  1318.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1319.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1320.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1321. 

  1322.     # --------------------------------------------------------------------------------------------------------

  1323.     # Plugins (macros)

  1324. 

  1325.     @pyqtSlot()

  1326.     def slot_pluginsEnable(self):

  1327.         if not self.host.is_engine_running():

  1328.             return

  1329. 

  1330.         for pitem in self.fPluginList:

  1331.             if pitem is None:

  1332.                 break

  1333. 

  1334.             pitem.getWidget().setActive(True, True, True)

  1335. 

  1336.     @pyqtSlot()

  1337.     def slot_pluginsDisable(self):

  1338.         if not self.host.is_engine_running():

  1339.             return

  1340. 

  1341.         for pitem in self.fPluginList:

  1342.             if pitem is None:

  1343.                 break

  1344. 

  1345.             pitem.getWidget().setActive(False, True, True)

  1346. 

  1347.     @pyqtSlot()

  1348.     def slot_pluginsVolume100(self):

  1349.         if not self.host.is_engine_running():

  1350.             return

  1351. 

  1352.         for pitem in self.fPluginList:

  1353.             if pitem is None:

  1354.                 break

  1355. 

  1356.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1357. 

  1358.     @pyqtSlot()

  1359.     def slot_pluginsMute(self):

  1360.         if not self.host.is_engine_running():

  1361.             return

  1362. 

  1363.         for pitem in self.fPluginList:

  1364.             if pitem is None:

  1365.                 break

  1366. 

  1367.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1368. 

  1369.     @pyqtSlot()

  1370.     def slot_pluginsWet100(self):

  1371.         if not self.host.is_engine_running():

  1372.             return

  1373. 

  1374.         for pitem in self.fPluginList:

  1375.             if pitem is None:

  1376.                 break

  1377. 

  1378.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1379. 

  1380.     @pyqtSlot()

  1381.     def slot_pluginsBypass(self):

  1382.         if not self.host.is_engine_running():

  1383.             return

  1384. 

  1385.         for pitem in self.fPluginList:

  1386.             if pitem is None:

  1387.                 break

  1388. 

  1389.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1390. 

  1391.     @pyqtSlot()

  1392.     def slot_pluginsCenter(self):

  1393.         if not self.host.is_engine_running():

  1394.             return

  1395. 

  1396.         for pitem in self.fPluginList:

  1397.             if pitem is None:

  1398.                 break

  1399. 

  1400.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1401.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1402.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1403. 

  1404.     @pyqtSlot()

  1405.     def slot_pluginsCompact(self):

  1406.         for pitem in self.fPluginList:

  1407.             if pitem is None:

  1408.                 break

  1409.             pitem.compact()

  1410. 

  1411.     @pyqtSlot()

  1412.     def slot_pluginsExpand(self):

  1413.         for pitem in self.fPluginList:

  1414.             if pitem is None:

  1415.                 break

  1416.             pitem.expand()

  1417. 

  1418.     # --------------------------------------------------------------------------------------------------------

  1419.     # Plugins (host callbacks)

  1420. 

  1421.     @pyqtSlot(int, str)

  1422.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1423.         if pluginId != self.fPluginCount:

  1424.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1425.             pitem = self.getPluginItem(pluginId)

  1426.             pitem.recreateWidget()

  1427.             return

  1428. 

  1429.         pitem = self.ui.listWidget.createItem(pluginId)

  1430.         self.fPluginList.append(pitem)

  1431.         self.fPluginCount += 1

  1432. 

  1433.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1434. 

  1435.     @pyqtSlot(int)

  1436.     def slot_handlePluginRemovedCallback(self, pluginId):

  1437.         if self.fWithCanvas:

  1438.             patchcanvas.handlePluginRemoved(pluginId)

  1439. 

  1440.         if pluginId in self.fSelectedPlugins:

  1441.             self.clearSideStuff()

  1442. 

  1443.         if self.fPluginCount == 0:

  1444.             return

  1445. 

  1446.         pitem = self.getPluginItem(pluginId)

  1447. 

  1448.         self.fPluginCount -= 1

  1449.         self.fPluginList.pop(pluginId)

  1450.         self.ui.listWidget.takeItem(pluginId)

  1451. 

  1452.         if pitem is not None:

  1453.             pitem.close()

  1454.             del pitem

  1455. 

  1456.         if self.fPluginCount == 0:

  1457.             self.ui.act_plugin_remove_all.setEnabled(False)

  1458.             if self.fCurrentlyRemovingAllPlugins:

  1459.                 self.fCurrentlyRemovingAllPlugins = False

  1460.                 self.projectLoadingFinished()

  1461.             return

  1462. 

  1463.         # push all plugins 1 slot back

  1464.         for i in range(pluginId, self.fPluginCount):

  1465.             pitem = self.fPluginList[i]

  1466.             pitem.setPluginId(i)

  1467. 

  1468.         self.ui.act_plugin_remove_all.setEnabled(True)

  1469. 

  1470.     # --------------------------------------------------------------------------------------------------------

  1471.     # Canvas

  1472. 

  1473.     def clearSideStuff(self):

  1474.         if self.fWithCanvas:

  1475.             self.scene.clearSelection()

  1476. 

  1477.         self.fSelectedPlugins = []

  1478. 

  1479.         self.ui.keyboard.allNotesOff(False)

  1480.         self.ui.scrollArea.setEnabled(False)

  1481. 

  1482.         self.fPeaksCleared = True

  1483.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1484.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1485.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1486.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1487. 

  1488.     def setupCanvas(self):

  1489.         pOptions = patchcanvas.options_t()

  1490.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1491.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1492.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1493.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1494.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1495.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1496. 

  1497.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1498.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1499.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1500.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1501.         else:

  1502.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1503. 

  1504.         pFeatures = patchcanvas.features_t()

  1505.         pFeatures.group_info   = False

  1506.         pFeatures.group_rename = False

  1507.         pFeatures.port_info    = False

  1508.         pFeatures.port_rename  = False

  1509.         pFeatures.handle_group_pos = False

  1510. 

  1511.         patchcanvas.setOptions(pOptions)

  1512.         patchcanvas.setFeatures(pFeatures)

  1513.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1514. 

  1515.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1516. 

  1517.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1518.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1519.             self.fCanvasHeight = int(tryCanvasSize[1])

  1520.         else:

  1521.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1522.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1523. 

  1524.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1525.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1526.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1527. 

  1528.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1529.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1530. 

  1531.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1532.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1533. 

  1534.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1535.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1536.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1537. 

  1538.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1539.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1540. 

  1541.         else:

  1542.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1543. 

  1544.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1545.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1546.         else:

  1547.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1548. 

  1549.     def updateCanvasInitialPos(self):

  1550.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1551.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1552.         patchcanvas.setInitialPos(x, y)

  1553. 

  1554.     def updateMiniCanvasLater(self):

  1555.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1556. 

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

  1558.     # Canvas (menu actions)

  1559. 

  1560.     @pyqtSlot()

  1561.     def slot_canvasShowInternal(self):

  1562.         self.fExternalPatchbay = False

  1563.         self.ui.act_canvas_show_internal.blockSignals(True)

  1564.         self.ui.act_canvas_show_external.blockSignals(True)

  1565.         self.ui.act_canvas_show_internal.setChecked(True)

  1566.         self.ui.act_canvas_show_external.setChecked(False)

  1567.         self.ui.act_canvas_show_internal.blockSignals(False)

  1568.         self.ui.act_canvas_show_external.blockSignals(False)

  1569.         self.slot_canvasRefresh()

  1570. 

  1571.     @pyqtSlot()

  1572.     def slot_canvasShowExternal(self):

  1573.         self.fExternalPatchbay = True

  1574.         self.ui.act_canvas_show_internal.blockSignals(True)

  1575.         self.ui.act_canvas_show_external.blockSignals(True)

  1576.         self.ui.act_canvas_show_internal.setChecked(False)

  1577.         self.ui.act_canvas_show_external.setChecked(True)

  1578.         self.ui.act_canvas_show_internal.blockSignals(False)

  1579.         self.ui.act_canvas_show_external.blockSignals(False)

  1580.         self.slot_canvasRefresh()

  1581. 

  1582.     @pyqtSlot()

  1583.     def slot_canvasArrange(self):

  1584.         patchcanvas.arrange()

  1585. 

  1586.     @pyqtSlot()

  1587.     def slot_canvasRefresh(self):

  1588.         patchcanvas.clear()

  1589. 

  1590.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1591.             return

  1592. 

  1593.         if self.host.is_engine_running():

  1594.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1595. 

  1596.         self.updateMiniCanvasLater()

  1597. 

  1598.     @pyqtSlot()

  1599.     def slot_canvasZoomFit(self):

  1600.         self.scene.zoom_fit()

  1601. 

  1602.     @pyqtSlot()

  1603.     def slot_canvasZoomIn(self):

  1604.         self.scene.zoom_in()

  1605. 

  1606.     @pyqtSlot()

  1607.     def slot_canvasZoomOut(self):

  1608.         self.scene.zoom_out()

  1609. 

  1610.     @pyqtSlot()

  1611.     def slot_canvasZoomReset(self):

  1612.         self.scene.zoom_reset()

  1613. 

  1614.     def _canvasImageRender(self, zoom = 1.0):

  1615.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1616.         painter = QPainter(image)

  1617.         painter.save()

  1618.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1619.         self.scene.clearSelection()

  1620.         self.scene.render(painter)

  1621.         painter.restore()

  1622.         del painter

  1623.         return image

  1624. 

  1625.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1626.         iw.setFormat(imgFormat)

  1627.         iw.setCompression(-1)

  1628.         if QT_VERSION >= 0x50500:

  1629.             iw.setOptimizedWrite(True)

  1630.         iw.write(image)

  1631. 

  1632.     @pyqtSlot()

  1633.     def slot_canvasSaveImage(self):

  1634.         if self.fProjectFilename:

  1635.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1636.         else:

  1637.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1638. 

  1639.         fileDialog = QFileDialog(self)

  1640.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1641.         fileDialog.setDirectory(dir)

  1642.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1643.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1644.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1645.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1646.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1647. 

  1648.         ok = fileDialog.exec_()

  1649. 

  1650.         if not ok:

  1651.             return

  1652. 

  1653.         newPath = fileDialog.selectedFiles()

  1654. 

  1655.         if len(newPath) != 1:

  1656.             return

  1657. 

  1658.         newPath = newPath[0]

  1659. 

  1660.         if QT_VERSION >= 0x50900:

  1661.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1662.                 imgFormat = b"JPG"

  1663.             else:

  1664.                 imgFormat = b"PNG"

  1665.         else:

  1666.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1667.                 imgFormat = b"JPG"

  1668.             else:

  1669.                 imgFormat = b"PNG"

  1670. 

  1671.         sender = self.sender()

  1672.         if sender == self.ui.act_canvas_save_image_2x:

  1673.             zoom = 2.0

  1674.         elif sender == self.ui.act_canvas_save_image_4x:

  1675.             zoom = 4.0

  1676.         else:

  1677.             zoom = 1.0

  1678. 

  1679.         image = self._canvasImageRender(zoom)

  1680.         iw = QImageWriter(newPath)

  1681.         self._canvasImageWrite(iw, imgFormat, image)

  1682. 

  1683.     @pyqtSlot()

  1684.     def slot_canvasCopyToClipboard(self):

  1685.         buffer = QBuffer()

  1686.         buffer.open(QIODevice.WriteOnly)

  1687. 

  1688.         image = self._canvasImageRender()

  1689.         iw = QImageWriter(buffer, b"PNG")

  1690.         self._canvasImageWrite(iw, b"PNG", image)

  1691. 

  1692.         buffer.close()

  1693. 

  1694.         mimeData = QMimeData()

  1695.         mimeData.setData("image/png", buffer.buffer());

  1696. 

  1697.         QApplication.clipboard().setMimeData(mimeData)

  1698. 

  1699.     # --------------------------------------------------------------------------------------------------------

  1700.     # Canvas (canvas callbacks)

  1701. 

  1702.     @pyqtSlot()

  1703.     def slot_canvasSelectionChanged(self):

  1704.         self.updateMiniCanvasLater()

  1705. 

  1706.     @pyqtSlot(float)

  1707.     def slot_canvasScaleChanged(self, scale):

  1708.         self.ui.miniCanvasPreview.setViewScale(scale)

  1709. 

  1710.     @pyqtSlot(list)

  1711.     def slot_canvasPluginSelected(self, pluginList):

  1712.         self.ui.keyboard.allNotesOff(False)

  1713.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1714.         self.fSelectedPlugins = pluginList

  1715. 

  1716.     # --------------------------------------------------------------------------------------------------------

  1717.     # Canvas (host callbacks)

  1718. 

  1719.     @pyqtSlot(int, int, int, str)

  1720.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1721.         pcSplit = patchcanvas.SPLIT_UNDEF

  1722.         pcIcon  = patchcanvas.ICON_APPLICATION

  1723. 

  1724.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1725.             pcIcon = patchcanvas.ICON_PLUGIN

  1726.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1727.             pcIcon = patchcanvas.ICON_HARDWARE

  1728.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1729.             pass

  1730.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1731.             pcIcon = patchcanvas.ICON_DISTRHO

  1732.         elif clientIcon == PATCHBAY_ICON_FILE:

  1733.             pcIcon = patchcanvas.ICON_FILE

  1734. 

  1735.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1736. 

  1737.         self.updateMiniCanvasLater()

  1738. 

  1739.         if pluginId < 0:

  1740.             return

  1741.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1742.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1743.             return

  1744. 

  1745.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1746.             hasCustomUI = False

  1747.             hasInlineDisplay = False

  1748.         else:

  1749.             hints = self.host.get_plugin_info(pluginId)['hints']

  1750.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1751.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1752. 

  1753.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1754. 

  1755.     @pyqtSlot(int)

  1756.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1757.         patchcanvas.removeGroup(clientId)

  1758.         self.updateMiniCanvasLater()

  1759. 

  1760.     @pyqtSlot(int, str)

  1761.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1762.         patchcanvas.renameGroup(clientId, newClientName)

  1763.         self.updateMiniCanvasLater()

  1764. 

  1765.     @pyqtSlot(int, int, int)

  1766.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1767.         pcIcon = patchcanvas.ICON_APPLICATION

  1768. 

  1769.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1770.             pcIcon = patchcanvas.ICON_PLUGIN

  1771.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1772.             pcIcon = patchcanvas.ICON_HARDWARE

  1773.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1774.             pass

  1775.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1776.             pcIcon = patchcanvas.ICON_DISTRHO

  1777.         elif clientIcon == PATCHBAY_ICON_FILE:

  1778.             pcIcon = patchcanvas.ICON_FILE

  1779. 

  1780.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1781.         self.updateMiniCanvasLater()

  1782. 

  1783.         if pluginId < 0:

  1784.             return

  1785.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1786.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1787.             return

  1788. 

  1789.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1790.             hasCustomUI = False

  1791.             hasInlineDisplay = False

  1792.         else:

  1793.             hints = self.host.get_plugin_info(pluginId)['hints']

  1794.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1795.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1796. 

  1797.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1798. 

  1799.     @pyqtSlot(int, int, int, int, int)

  1800.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1801.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1802.             patchcanvas.splitGroup(clientId)

  1803.         else:

  1804.             patchcanvas.joinGroup(clientId)

  1805.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1806.         self.updateMiniCanvasLater()

  1807. 

  1808.     @pyqtSlot(int, int, int, int, str)

  1809.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1810.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1811.             portMode = patchcanvas.PORT_MODE_INPUT

  1812.         else:

  1813.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1814. 

  1815.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1816.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1817.             isAlternate = False

  1818.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1819.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1820.             isAlternate = False

  1821.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1822.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1823.             isAlternate = False

  1824.         else:

  1825.             portType    = patchcanvas.PORT_TYPE_NULL

  1826.             isAlternate = False

  1827. 

  1828.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1829.         self.updateMiniCanvasLater()

  1830. 

  1831.     @pyqtSlot(int, int)

  1832.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1833.         patchcanvas.removePort(groupId, portId)

  1834.         self.updateMiniCanvasLater()

  1835. 

  1836.     @pyqtSlot(int, int, int, int, str)

  1837.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1838.         patchcanvas.renamePort(groupId, portId, newPortName)

  1839.         self.updateMiniCanvasLater()

  1840. 

  1841.     @pyqtSlot(int, int, int, str)

  1842.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1843.         # TODO

  1844.         pass

  1845. 

  1846.     @pyqtSlot(int, int)

  1847.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1848.         # TODO

  1849.         pass

  1850. 

  1851.     @pyqtSlot(int, int, int, str)

  1852.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1853.         # TODO

  1854.         pass

  1855. 

  1856.     @pyqtSlot(int, int, int, int, int)

  1857.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1858.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1859.         self.updateMiniCanvasLater()

  1860. 

  1861.     @pyqtSlot(int, int, int)

  1862.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1863.         patchcanvas.disconnectPorts(connectionId)

  1864.         self.updateMiniCanvasLater()

  1865. 

  1866.     # --------------------------------------------------------------------------------------------------------

  1867.     # Settings

  1868. 

  1869.     def saveSettings(self):

  1870.         settings = QSafeSettings()

  1871. 

  1872.         settings.setValue("Geometry", self.saveGeometry())

  1873.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1874.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1875. 

  1876.         diskFolders = []

  1877. 

  1878.         for i in range(self.ui.cb_disk.count()):

  1879.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1880. 

  1881.         settings.setValue("DiskFolders", diskFolders)

  1882.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1883. 

  1884.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1885.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1886.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1887.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1888. 

  1889.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1890.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1891. 

  1892.         return settings

  1893. 

  1894.     def loadSettings(self, firstTime):

  1895.         settings = QSafeSettings()

  1896. 

  1897.         if firstTime:

  1898.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1899.             if not geometry.isNull():

  1900.                 self.restoreGeometry(geometry)

  1901. 

  1902.             showToolbar = settings.value("ShowToolbar", True, bool)

  1903.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1904.             self.ui.toolBar.setEnabled(showToolbar)

  1905.             self.ui.toolBar.setVisible(showToolbar)

  1906. 

  1907.             #if settings.contains("SplitterState"):

  1908.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1909.             #else:

  1910.                 #self.ui.splitter.setSizes([210, 99999])

  1911. 

  1912.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1913.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1914.             self.slot_showSidePanel(showSidePanel)

  1915. 

  1916.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1917. 

  1918.             self.ui.cb_disk.setItemData(0, HOME)

  1919. 

  1920.             for i in range(len(diskFolders)):

  1921.                 if i == 0: continue

  1922.                 folder = diskFolders[i]

  1923.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1924. 

  1925.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1926.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1927. 

  1928.             showMeters = settings.value("ShowMeters", True, bool)

  1929.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1930.             self.ui.peak_in.setVisible(showMeters)

  1931.             self.ui.peak_out.setVisible(showMeters)

  1932. 

  1933.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1934.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1935.             self.ui.scrollArea.setVisible(showKeyboard)

  1936. 

  1937.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1938.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1939. 

  1940.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1941. 

  1942.         # TODO - complete this

  1943. 

  1944.         self.fSavedSettings = {

  1945.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1946.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1947.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1948.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  1949.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1950.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1951.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1952.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1953.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1954.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1955.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1956.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1957.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1958.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1959.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1960.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1961.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1962.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1963.         }

  1964. 

  1965.         if not self.host.isControl:

  1966.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1967.         else:

  1968.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1969. 

  1970.         settings2 = QSafeSettings("falkTX", "Carla2")

  1971. 

  1972.         if self.host.experimental:

  1973.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1974.             self.ui.act_plugin_add_jack.setVisible(visible)

  1975.         else:

  1976.             self.ui.act_plugin_add_jack.setVisible(False)

  1977. 

  1978.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1979. 

  1980.         setEngineSettings(self.host)

  1981.         self.restartTimersIfNeeded()

  1982. 

  1983.         return settings

  1984. 

  1985.     # --------------------------------------------------------------------------------------------------------

  1986.     # Settings (helpers)

  1987. 

  1988.     def enableTransport(self, enabled):

  1989.         self.ui.group_transport_controls.setEnabled(enabled)

  1990.         self.ui.group_transport_settings.setEnabled(enabled)

  1991. 

  1992.     @pyqtSlot()

  1993.     def slot_restoreCanvasScrollbarValues(self):

  1994.         settings = QSafeSettings()

  1995.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  1996.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  1997.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  1998.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  1999. 

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

  2001.     # Settings (menu actions)

  2002. 

  2003.     @pyqtSlot(bool)

  2004.     def slot_showSidePanel(self, yesNo):

  2005.         self.ui.dockWidget.setEnabled(yesNo)

  2006.         self.ui.dockWidget.setVisible(yesNo)

  2007. 

  2008.     @pyqtSlot(bool)

  2009.     def slot_showToolbar(self, yesNo):

  2010.         self.ui.toolBar.setEnabled(yesNo)

  2011.         self.ui.toolBar.setVisible(yesNo)

  2012. 

  2013.     @pyqtSlot(bool)

  2014.     def slot_showCanvasMeters(self, yesNo):

  2015.         self.ui.peak_in.setVisible(yesNo)

  2016.         self.ui.peak_out.setVisible(yesNo)

  2017.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2018. 

  2019.     @pyqtSlot(bool)

  2020.     def slot_showCanvasKeyboard(self, yesNo):

  2021.         self.ui.scrollArea.setVisible(yesNo)

  2022.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2023. 

  2024.     @pyqtSlot()

  2025.     def slot_configureCarla(self):

  2026.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2027.         if not dialog.exec_():

  2028.             return

  2029. 

  2030.         self.loadSettings(False)

  2031. 

  2032.         if self.fWithCanvas:

  2033.             patchcanvas.clear()

  2034.             self.setupCanvas()

  2035.             self.slot_miniCanvasCheckAll()

  2036. 

  2037.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2038.             pass

  2039.         elif self.host.is_engine_running():

  2040.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2041. 

  2042.     # --------------------------------------------------------------------------------------------------------

  2043.     # About (menu actions)

  2044. 

  2045.     @pyqtSlot()

  2046.     def slot_aboutCarla(self):

  2047.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2048. 

  2049.     @pyqtSlot()

  2050.     def slot_aboutJuce(self):

  2051.         JuceAboutW(self.fParentOrSelf).exec_()

  2052. 

  2053.     @pyqtSlot()

  2054.     def slot_aboutQt(self):

  2055.         QApplication.instance().aboutQt()

  2056. 

  2057.     # --------------------------------------------------------------------------------------------------------

  2058.     # Disk (menu actions)

  2059. 

  2060.     @pyqtSlot(int)

  2061.     def slot_diskFolderChanged(self, index):

  2062.         if index < 0:

  2063.             return

  2064.         elif index == 0:

  2065.             filename = HOME

  2066.             self.ui.b_disk_remove.setEnabled(False)

  2067.         else:

  2068.             filename = self.ui.cb_disk.itemData(index)

  2069.             self.ui.b_disk_remove.setEnabled(True)

  2070. 

  2071.         self.fDirModel.setRootPath(filename)

  2072.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2073. 

  2074.     @pyqtSlot()

  2075.     def slot_diskFolderAdd(self):

  2076.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2077. 

  2078.         if newPath:

  2079.             if newPath[-1] == os.sep:

  2080.                 newPath = newPath[:-1]

  2081.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2082.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2083.             self.ui.b_disk_remove.setEnabled(True)

  2084. 

  2085.     @pyqtSlot()

  2086.     def slot_diskFolderRemove(self):

  2087.         index = self.ui.cb_disk.currentIndex()

  2088. 

  2089.         if index <= 0:

  2090.             return

  2091. 

  2092.         self.ui.cb_disk.removeItem(index)

  2093. 

  2094.         if self.ui.cb_disk.currentIndex() == 0:

  2095.             self.ui.b_disk_remove.setEnabled(False)

  2096. 

  2097.     @pyqtSlot(QModelIndex)

  2098.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2099.         filename = self.fDirModel.filePath(modelIndex)

  2100. 

  2101.         if not self.ui.listWidget.isDragUrlValid(filename):

  2102.             return

  2103. 

  2104.         if not self.host.load_file(filename):

  2105.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2106.                              self.tr("Failed to load file"),

  2107.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2108.             return

  2109. 

  2110.         if filename.endswith(".carxp"):

  2111.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2112. 

  2113.     # --------------------------------------------------------------------------------------------------------

  2114.     # Transport

  2115. 

  2116.     def refreshTransport(self, forced = False):

  2117.         if not self.ui.l_transport_time.isVisible():

  2118.             return

  2119.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2120.             return

  2121. 

  2122.         timeInfo = self.host.get_transport_info()

  2123.         playing  = timeInfo['playing']

  2124.         frame    = timeInfo['frame']

  2125.         bpm      = timeInfo['bpm']

  2126. 

  2127.         if playing != self.fLastTransportState or forced:

  2128.             if playing:

  2129.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2130.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2131.                 else:

  2132.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2133.                 self.ui.b_transport_play.setChecked(True)

  2134.                 self.ui.b_transport_play.setIcon(icon)

  2135.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2136.             else:

  2137.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2138.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2139.                 else:

  2140.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2141.                 self.ui.b_transport_play.setChecked(False)

  2142.                 self.ui.b_transport_play.setIcon(icon)

  2143.                 #self.ui.b_play.setText(self.tr("&Play"))

  2144. 

  2145.             self.fLastTransportState = playing

  2146. 

  2147.         if frame != self.fLastTransportFrame or forced:

  2148.             self.fLastTransportFrame = frame

  2149. 

  2150.             time = frame / self.fSampleRate

  2151.             secs =  time % 60

  2152.             mins = (time / 60) % 60

  2153.             hrs  = (time / 3600) % 60

  2154.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2155. 

  2156.             frame1 =  frame % 1000

  2157.             frame2 = (frame / 1000) % 1000

  2158.             frame3 = (frame / 1000000) % 1000

  2159.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2160. 

  2161.             bar  = timeInfo['bar']

  2162.             beat = timeInfo['beat']

  2163.             tick = timeInfo['tick']

  2164.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2165. 

  2166.         if bpm != self.fLastTransportBPM or forced:

  2167.             self.fLastTransportBPM = bpm

  2168. 

  2169.             if bpm > 0.0:

  2170.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2171.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2172.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2173.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2174.             else:

  2175.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2176. 

  2177.     # --------------------------------------------------------------------------------------------------------

  2178.     # Transport (menu actions)

  2179. 

  2180.     @pyqtSlot(bool)

  2181.     def slot_transportPlayPause(self, toggled):

  2182.         if self.host.isPlugin or not self.host.is_engine_running():

  2183.             return

  2184. 

  2185.         if toggled:

  2186.             self.host.transport_play()

  2187.         else:

  2188.             self.host.transport_pause()

  2189. 

  2190.         self.refreshTransport()

  2191. 

  2192.     @pyqtSlot()

  2193.     def slot_transportStop(self):

  2194.         if self.host.isPlugin or not self.host.is_engine_running():

  2195.             return

  2196. 

  2197.         self.host.transport_pause()

  2198.         self.host.transport_relocate(0)

  2199. 

  2200.         self.refreshTransport()

  2201. 

  2202.     @pyqtSlot()

  2203.     def slot_transportBackwards(self):

  2204.         if self.host.isPlugin or not self.host.is_engine_running():

  2205.             return

  2206. 

  2207.         newFrame = self.host.get_current_transport_frame() - 100000

  2208. 

  2209.         if newFrame < 0:

  2210.             newFrame = 0

  2211. 

  2212.         self.host.transport_relocate(newFrame)

  2213. 

  2214.     @pyqtSlot(float)

  2215.     def slot_transportBpmChanged(self, newValue):

  2216.         self.host.transport_bpm(newValue)

  2217. 

  2218.     @pyqtSlot()

  2219.     def slot_transportForwards(self):

  2220.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2221.             return

  2222. 

  2223.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2224.         self.host.transport_relocate(newFrame)

  2225. 

  2226.     @pyqtSlot(bool)

  2227.     def slot_transportJackEnabled(self, clicked):

  2228.         if not self.host.is_engine_running():

  2229.             return

  2230.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2231.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2232.                                     self.host.transportMode,

  2233.                                     self.host.transportExtra)

  2234. 

  2235.     @pyqtSlot(bool)

  2236.     def slot_transportLinkEnabled(self, clicked):

  2237.         if not self.host.is_engine_running():

  2238.             return

  2239.         extra = ":link:" if clicked else ""

  2240.         self.host.transportExtra = extra

  2241.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2242.                                     self.host.transportMode,

  2243.                                     self.host.transportExtra)

  2244. 

  2245.     # --------------------------------------------------------------------------------------------------------

  2246.     # Other

  2247. 

  2248.     @pyqtSlot(bool)

  2249.     def slot_xrunClear(self):

  2250.         self.host.clear_engine_xruns()

  2251. 

  2252.     # --------------------------------------------------------------------------------------------------------

  2253.     # Canvas scrollbars

  2254. 

  2255.     @pyqtSlot(int)

  2256.     def slot_horizontalScrollBarChanged(self, value):

  2257.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2258.         if maximum == 0:

  2259.             xp = 0

  2260.         else:

  2261.             xp = float(value) / maximum

  2262.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2263.         self.updateCanvasInitialPos()

  2264. 

  2265.     @pyqtSlot(int)

  2266.     def slot_verticalScrollBarChanged(self, value):

  2267.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2268.         if maximum == 0:

  2269.             yp = 0

  2270.         else:

  2271.             yp = float(value) / maximum

  2272.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2273.         self.updateCanvasInitialPos()

  2274. 

  2275.     # --------------------------------------------------------------------------------------------------------

  2276.     # Canvas keyboard

  2277. 

  2278.     @pyqtSlot(int)

  2279.     def slot_noteOn(self, note):

  2280.         for pluginId in self.fSelectedPlugins:

  2281.             self.host.send_midi_note(pluginId, 0, note, 100)

  2282. 

  2283.             pedit = self.getPluginEditDialog(pluginId)

  2284.             pedit.noteOn(0, note, 100)

  2285. 

  2286.     @pyqtSlot(int)

  2287.     def slot_noteOff(self, note):

  2288.         for pluginId in self.fSelectedPlugins:

  2289.             self.host.send_midi_note(pluginId, 0, note, 0)

  2290. 

  2291.             pedit = self.getPluginEditDialog(pluginId)

  2292.             pedit.noteOff(0, note)

  2293. 

  2294.     # --------------------------------------------------------------------------------------------------------

  2295.     # Canvas keyboard (host callbacks)

  2296. 

  2297.     @pyqtSlot(int, int, int, int)

  2298.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2299.         if pluginId in self.fSelectedPlugins:

  2300.             self.ui.keyboard.sendNoteOn(note, False)

  2301. 

  2302.     @pyqtSlot(int, int, int)

  2303.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2304.         if pluginId in self.fSelectedPlugins:

  2305.             self.ui.keyboard.sendNoteOff(note, False)

  2306. 

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

  2308. 

  2309.     @pyqtSlot(int)

  2310.     def slot_handleUpdateCallback(self, pluginId):

  2311.         pitem = self.getPluginItem(pluginId)

  2312. 

  2313.         if pitem is None:

  2314.             return

  2315. 

  2316.         wasCompacted = pitem.isCompacted()

  2317.         isCompacted  = wasCompacted

  2318. 

  2319.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2320.         if not check:

  2321.             return

  2322.         isCompacted = bool(check == "true")

  2323. 

  2324.         if wasCompacted == isCompacted:

  2325.             return

  2326. 

  2327.         pitem.recreateWidget(True)

  2328. 

  2329.     # --------------------------------------------------------------------------------------------------------

  2330.     # MiniCanvas stuff

  2331. 

  2332.     @pyqtSlot()

  2333.     def slot_miniCanvasCheckAll(self):

  2334.         self.slot_miniCanvasCheckSize()

  2335.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2336.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2337. 

  2338.     @pyqtSlot()

  2339.     def slot_miniCanvasCheckSize(self):

  2340.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2341.             return

  2342. 

  2343.         currentIndex = self.ui.tabWidget.currentIndex()

  2344. 

  2345.         if currentIndex == 1:

  2346.             width  = self.ui.graphicsView.width()

  2347.             height = self.ui.graphicsView.height()

  2348.         else:

  2349.             self.ui.tabWidget.blockSignals(True)

  2350.             self.ui.tabWidget.setCurrentIndex(1)

  2351.             width  = self.ui.graphicsView.width()

  2352.             height = self.ui.graphicsView.height()

  2353.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2354.             self.ui.tabWidget.blockSignals(False)

  2355. 

  2356.         self.scene.updateLimits()

  2357. 

  2358.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2359. 

  2360.     @pyqtSlot(float, float)

  2361.     def slot_miniCanvasMoved(self, xp, yp):

  2362.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2363.         vsb = self.ui.graphicsView.verticalScrollBar()

  2364.         hsb.setValue(xp * hsb.maximum())

  2365.         vsb.setValue(yp * vsb.maximum())

  2366.         self.updateCanvasInitialPos()

  2367. 

  2368.     # --------------------------------------------------------------------------------------------------------

  2369.     # Logs autoscroll, save and clear

  2370. 

  2371.     @pyqtSlot(int)

  2372.     def slot_toggleLogAutoscroll(self, checkState):

  2373.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2374.         if self.autoscrollOnNewLog:

  2375.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2376. 

  2377.     @pyqtSlot(int)

  2378.     def slot_logSliderMoved(self, slider_pos):

  2379.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2380.             self.lastLogSliderPos = slider_pos

  2381.         else:

  2382.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2383. 

  2384.     @pyqtSlot()

  2385.     def slot_logButtonsState(self, enabled=True):

  2386.         self.ui.logs_clear.setEnabled(enabled)

  2387.         self.ui.logs_save.setEnabled(enabled)

  2388. 

  2389.     @pyqtSlot()

  2390.     def slot_logSave(self):

  2391.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2392.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2393. 

  2394.         if not filename:

  2395.             return

  2396. 

  2397.         try:

  2398.             with open(filename, "w") as logfile:

  2399.                 logfile.write(self.ui.text_logs.toPlainText())

  2400.                 logfile.close()

  2401.         except:

  2402.             return

  2403. 

  2404.     @pyqtSlot()

  2405.     def slot_logClear(self):

  2406.         self.ui.text_logs.clear()

  2407.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2408.         self.slot_logButtonsState(False)

  2409. 

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

  2411.     # Timers

  2412. 

  2413.     def startTimers(self):

  2414.         if self.fIdleTimerFast == 0:

  2415.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2416. 

  2417.         if self.fIdleTimerSlow == 0:

  2418.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2419. 

  2420.     def restartTimersIfNeeded(self):

  2421.         if self.fIdleTimerFast != 0:

  2422.             self.killTimer(self.fIdleTimerFast)

  2423.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2424. 

  2425.         if self.fIdleTimerSlow != 0:

  2426.             self.killTimer(self.fIdleTimerSlow)

  2427.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2428. 

  2429.     def killTimers(self):

  2430.         if self.fIdleTimerFast != 0:

  2431.             self.killTimer(self.fIdleTimerFast)

  2432.             self.fIdleTimerFast = 0

  2433. 

  2434.         if self.fIdleTimerSlow != 0:

  2435.             self.killTimer(self.fIdleTimerSlow)

  2436.             self.fIdleTimerSlow = 0

  2437. 

  2438.     # --------------------------------------------------------------------------------------------------------

  2439.     # Misc

  2440. 

  2441.     @pyqtSlot(int)

  2442.     def slot_tabChanged(self, index):

  2443.         if index != 1:

  2444.             return

  2445. 

  2446.         self.ui.graphicsView.setFocus()

  2447. 

  2448.     @pyqtSlot(int)

  2449.     def slot_handleReloadAllCallback(self, pluginId):

  2450.         if pluginId >= self.fPluginCount:

  2451.             return

  2452. 

  2453.         pitem = self.fPluginList[pluginId]

  2454.         if pitem is None:

  2455.             return

  2456. 

  2457.         pitem.recreateWidget()

  2458. 

  2459.     # --------------------------------------------------------------------------------------------------------

  2460. 

  2461.     @pyqtSlot(int, int, str)

  2462.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2463.         if opcode == NSM_CALLBACK_INIT:

  2464.             return

  2465. 

  2466.         # Error

  2467.         elif opcode == NSM_CALLBACK_ERROR:

  2468.             pass

  2469. 

  2470.         # Reply

  2471.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2472.             self.fFirstEngineInit    = False

  2473.             self.fSessionManagerName = valueStr

  2474.             self.setProperWindowTitle()

  2475. 

  2476.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2477.             if (valueInt & (1 << 1)) == 0x0:

  2478.                 self.fWindowCloseHideGui = False

  2479.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2480.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2481.                 self.show()

  2482. 

  2483.         # Open

  2484.         elif opcode == NSM_CALLBACK_OPEN:

  2485.             self.fClientName      = os.path.basename(valueStr)

  2486.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2487.             self.setProperWindowTitle()

  2488. 

  2489.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2490.             self.slot_engineStop(True)

  2491.             return

  2492. 

  2493.         # Save

  2494.         elif opcode == NSM_CALLBACK_SAVE:

  2495.             self.saveProjectNow()

  2496. 

  2497.         # Session is Loaded

  2498.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2499.             pass

  2500. 

  2501.         # Show Optional Gui

  2502.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2503.             self.show()

  2504. 

  2505.         # Hide Optional Gui

  2506.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2507.             self.hideForNSM()

  2508. 

  2509.         self.host.nsm_ready(opcode)

  2510. 

  2511.     # --------------------------------------------------------------------------------------------------------

  2512. 

  2513.     def fixLogText(self, text):

  2514.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2515. 

  2516.     @pyqtSlot(int, int, int, int, float, str)

  2517.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2518.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2519. 

  2520.     @pyqtSlot(str)

  2521.     def slot_handleInfoCallback(self, info):

  2522.         QMessageBox.information(self, "Information", info)

  2523. 

  2524.     @pyqtSlot(str)

  2525.     def slot_handleErrorCallback(self, error):

  2526.         QMessageBox.critical(self, "Error", error)

  2527. 

  2528.     @pyqtSlot()

  2529.     def slot_handleQuitCallback(self):

  2530.         self.fIsProjectLoading = False

  2531.         self.killTimers()

  2532.         self.removeAllPlugins()

  2533.         self.projectLoadingFinished()

  2534. 

  2535.     @pyqtSlot(int)

  2536.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2537.         # FIXME

  2538.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2539.             patchcanvas.redrawPluginGroup(pluginId)

  2540. 

  2541.     # --------------------------------------------------------------------------------------------------------

  2542. 

  2543.     @pyqtSlot()

  2544.     def slot_handleSIGUSR1(self):

  2545.         print("Got SIGUSR1 -> Saving project now")

  2546.         self.slot_fileSave()

  2547. 

  2548.     @pyqtSlot()

  2549.     def slot_handleSIGTERM(self):

  2550.         print("Got SIGTERM -> Closing now")

  2551.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2552.         self.close()

  2553. 

  2554.     # --------------------------------------------------------------------------------------------------------

  2555.     # Internal stuff

  2556. 

  2557.     def getExtraPtr(self, plugin):

  2558.         ptype = plugin['type']

  2559. 

  2560.         if ptype == PLUGIN_LADSPA:

  2561.             uniqueId = plugin['uniqueId']

  2562. 

  2563.             self.maybeLoadRDFs()

  2564. 

  2565.             for rdfItem in self.fLadspaRdfList:

  2566.                 if rdfItem.UniqueID == uniqueId:

  2567.                     return pointer(rdfItem)

  2568. 

  2569.         elif ptype == PLUGIN_SF2:

  2570.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2571.                 return self._true

  2572. 

  2573.         return None

  2574. 

  2575.     def maybeLoadRDFs(self):

  2576.         if not self.fLadspaRdfNeedsUpdate:

  2577.             return

  2578. 

  2579.         self.fLadspaRdfNeedsUpdate = False

  2580.         self.fLadspaRdfList = []

  2581. 

  2582.         if not haveLRDF:

  2583.             return

  2584. 

  2585.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2586.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2587. 

  2588.         if os.path.exists(frLadspaFile):

  2589.             frLadspa = open(frLadspaFile, 'r')

  2590. 

  2591.             try:

  2592.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2593.             except:

  2594.                 pass

  2595. 

  2596.             frLadspa.close()

  2597. 

  2598.     # --------------------------------------------------------------------------------------------------------

  2599. 

  2600.     def getPluginCount(self):

  2601.         return self.fPluginCount

  2602. 

  2603.     def getPluginItem(self, pluginId):

  2604.         if pluginId >= self.fPluginCount:

  2605.             return None

  2606. 

  2607.         pitem = self.fPluginList[pluginId]

  2608.         if pitem is None:

  2609.             return None

  2610.         #if False:

  2611.             #return CarlaRackItem(self, 0, False)

  2612. 

  2613.         return pitem

  2614. 

  2615.     def getPluginEditDialog(self, pluginId):

  2616.         if pluginId >= self.fPluginCount:

  2617.             return None

  2618. 

  2619.         pitem = self.fPluginList[pluginId]

  2620.         if pitem is None:

  2621.             return None

  2622.         if False:

  2623.             return PluginEdit(self, self.host, 0)

  2624. 

  2625.         return pitem.getEditDialog()

  2626. 

  2627.     def getPluginSlotWidget(self, pluginId):

  2628.         if pluginId >= self.fPluginCount:

  2629.             return None

  2630. 

  2631.         pitem = self.fPluginList[pluginId]

  2632.         if pitem is None:

  2633.             return None

  2634.         #if False:

  2635.             #return AbstractPluginSlot()

  2636. 

  2637.         return pitem.getWidget()

  2638. 

  2639.     # --------------------------------------------------------------------------------------------------------

  2640. 

  2641.     def waitForPendingEvents(self):

  2642.         pass

  2643. 

  2644.     # --------------------------------------------------------------------------------------------------------

  2645.     # show/hide event

  2646. 

  2647.     def showEvent(self, event):

  2648.         self.getAndRefreshRuntimeInfo()

  2649.         self.refreshTransport(True)

  2650.         QMainWindow.showEvent(self, event)

  2651. 

  2652.         if QT_VERSION >= 0x50600:

  2653.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2654.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2655. 

  2656.         # set our gui as parent for all plugins UIs

  2657.         if self.host.manageUIs and not self.host.isControl:

  2658.             if MACOS:

  2659.                 nsViewPtr = int(self.winId())

  2660.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2661.             else:

  2662.                 winIdStr = "%x" % int(self.winId())

  2663.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2664. 

  2665.     def hideEvent(self, event):

  2666.         # disable parent

  2667.         if not self.host.isControl:

  2668.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2669. 

  2670.         QMainWindow.hideEvent(self, event)

  2671. 

  2672.     # --------------------------------------------------------------------------------------------------------

  2673.     # resize event

  2674. 

  2675.     def resizeEvent(self, event):

  2676.         QMainWindow.resizeEvent(self, event)

  2677. 

  2678.         if self.fWithCanvas:

  2679.             self.slot_miniCanvasCheckSize()

  2680. 

  2681.     # --------------------------------------------------------------------------------------------------------

  2682.     # timer event

  2683. 

  2684.     def refreshRuntimeInfo(self, load, xruns):

  2685.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2686.         txt2 = "" if (xruns == 1) else "s"

  2687.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2688.         self.ui.pb_dsp_load.setValue(int(load))

  2689. 

  2690.     def getAndRefreshRuntimeInfo(self):

  2691.         if not self.ui.pb_dsp_load.isVisible():

  2692.             return

  2693.         if not self.host.is_engine_running():

  2694.             return

  2695.         info = self.host.get_runtime_engine_info()

  2696.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2697. 

  2698.     def idleFast(self):

  2699.         self.host.engine_idle()

  2700.         self.refreshTransport()

  2701. 

  2702.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2703.             return

  2704. 

  2705.         for pitem in self.fPluginList:

  2706.             if pitem is None:

  2707.                 break

  2708. 

  2709.             pitem.getWidget().idleFast()

  2710. 

  2711.         for pluginId in self.fSelectedPlugins:

  2712.             self.fPeaksCleared = False

  2713.             if self.ui.peak_in.isVisible():

  2714.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2715.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2716.             if self.ui.peak_out.isVisible():

  2717.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2718.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2719.             return

  2720. 

  2721.         if self.fPeaksCleared:

  2722.             return

  2723. 

  2724.         self.fPeaksCleared = True

  2725.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2726.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2727.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2728.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2729. 

  2730.     def idleSlow(self):

  2731.         self.getAndRefreshRuntimeInfo()

  2732. 

  2733.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2734.             return

  2735. 

  2736.         for pitem in self.fPluginList:

  2737.             if pitem is None:

  2738.                 break

  2739. 

  2740.             pitem.getWidget().idleSlow()

  2741. 

  2742.     def timerEvent(self, event):

  2743.         if event.timerId() == self.fIdleTimerFast:

  2744.             self.idleFast()

  2745. 

  2746.         elif event.timerId() == self.fIdleTimerSlow:

  2747.             self.idleSlow()

  2748. 

  2749.         QMainWindow.timerEvent(self, event)

  2750. 

  2751.     # --------------------------------------------------------------------------------------------------------

  2752.     # color/style change event

  2753. 

  2754.     def changeEvent(self, event):

  2755.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2756.             self.updateStyle()

  2757.         QMainWindow.changeEvent(self, event)

  2758. 

  2759.     def updateStyle(self):

  2760.         # Rack padding images setup

  2761.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2762.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2763. 

  2764.         min_value = 0.07

  2765. 

  2766.         if PYQT_VERSION >= 0x50600:

  2767.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2768.         else:

  2769.             value_fix = 1.5

  2770. 

  2771.         rack_pal = self.ui.rack.palette()

  2772.         bg_color = rack_pal.window().color()

  2773.         fg_color = rack_pal.text().color()

  2774.         bg_value = 1.0 - bg_color.blackF()

  2775.         if bg_value != 0.0 and bg_value < min_value:

  2776.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2777.         else:

  2778.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2779. 

  2780.         painter = QPainter()

  2781.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2782. 

  2783.         painter.begin(rack_imgL)

  2784.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2785.         painter.setBrush(pad_color)

  2786.         painter.drawRect(fillRect)

  2787.         painter.end()

  2788.         rack_pixmapL = QPixmap(rack_imgL)

  2789.         self.imgL_palette = QPalette()

  2790.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2791.         self.ui.pad_left.setPalette(self.imgL_palette)

  2792.         self.ui.pad_left.setAutoFillBackground(True)

  2793. 

  2794.         painter.begin(rack_imgR)

  2795.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2796.         painter.setBrush(pad_color)

  2797.         painter.drawRect(fillRect)

  2798.         painter.end()

  2799.         rack_pixmapR = QPixmap(rack_imgR)

  2800.         self.imgR_palette = QPalette()

  2801.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2802.         self.ui.pad_right.setPalette(self.imgR_palette)

  2803.         self.ui.pad_right.setAutoFillBackground(True)

  2804. 

  2805.         # qt's rgba is actually argb, so convert that

  2806.         bg_color_value = bg_color.rgba()

  2807.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2808. 

  2809.         fg_color_value = fg_color.rgba()

  2810.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2811. 

  2812.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2813.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2814. 

  2815.     # --------------------------------------------------------------------------------------------------------

  2816.     # paint event

  2817. 

  2818.     #def paintEvent(self, event):

  2819.         #QMainWindow.paintEvent(self, event)

  2820. 

  2821.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2822.             #return

  2823. 

  2824.         #painter = QPainter(self)

  2825.         #painter.setBrush(QColor(36, 36, 36))

  2826.         #painter.setPen(QColor(62, 62, 62))

  2827.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2828. 

  2829.     # --------------------------------------------------------------------------------------------------------

  2830.     # close event

  2831. 

  2832.     def shouldIgnoreClose(self):

  2833.         if self.host.isControl or self.host.isPlugin:

  2834.             return False

  2835.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2836.             return False

  2837.         if self.fWindowCloseHideGui:

  2838.             return False

  2839.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2840.             return QMessageBox.question(self, self.tr("Quit"),

  2841.                                               self.tr("Are you sure you want to quit Carla?"),

  2842.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2843.         return False

  2844. 

  2845.     def closeEvent(self, event):

  2846.         if self.shouldIgnoreClose():

  2847.             event.ignore()

  2848.             return

  2849. 

  2850.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2851.             self.hideForNSM()

  2852.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2853.             return

  2854. 

  2855.         patchcanvas.handleAllPluginsRemoved()

  2856. 

  2857.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2858.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2859.             self.fMacClosingHelper = False

  2860.             event.ignore()

  2861. 

  2862.             for i in reversed(range(self.fPluginCount)):

  2863.                 self.host.show_custom_ui(i, False)

  2864. 

  2865.             QTimer.singleShot(100, self.close)

  2866.             return

  2867. 

  2868.         self.killTimers()

  2869.         self.saveSettings()

  2870. 

  2871.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2872.             if not self.slot_engineStop(True):

  2873.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2874.                 event.ignore()

  2875.                 return

  2876. 

  2877.         QMainWindow.closeEvent(self, event)

  2878. 

  2879.         # if we reach this point, fully close ourselves

  2880.         gCarla.gui = None

  2881.         QApplication.instance().quit()

  2882. 

  2883. # ------------------------------------------------------------------------------------------------

  2884. # Canvas callback

  2885. 

  2886. def canvasCallback(action, value1, value2, valueStr):

  2887.     host = gCarla.gui.host

  2888. 

  2889.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2890.         return

  2891. 

  2892.     if action == patchcanvas.ACTION_GROUP_INFO:

  2893.         pass

  2894. 

  2895.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2896.         pass

  2897. 

  2898.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2899.         groupId = value1

  2900.         patchcanvas.splitGroup(groupId)

  2901.         gCarla.gui.updateMiniCanvasLater()

  2902. 

  2903.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2904.         groupId = value1

  2905.         patchcanvas.joinGroup(groupId)

  2906.         gCarla.gui.updateMiniCanvasLater()

  2907. 

  2908.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2909.         if gCarla.gui.fIsProjectLoading:

  2910.             return

  2911.         if not host.is_engine_running():

  2912.             return

  2913.         groupId = value1

  2914.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2915.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2916.         gCarla.gui.updateMiniCanvasLater()

  2917. 

  2918.     elif action == patchcanvas.ACTION_PORT_INFO:

  2919.         pass

  2920. 

  2921.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2922.         pass

  2923. 

  2924.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2925.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2926. 

  2927.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2928.             print("Connection failed:", host.get_last_error())

  2929. 

  2930.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2931.         connectionId = value1

  2932. 

  2933.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2934.             print("Disconnect failed:", host.get_last_error())

  2935. 

  2936.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2937.         pluginId = value1

  2938. 

  2939.         if not host.clone_plugin(pluginId):

  2940.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2941.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2942. 

  2943.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2944.         pluginId = value1

  2945.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2946. 

  2947.         if pwidget is not None:

  2948.             pwidget.showEditDialog()

  2949. 

  2950.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2951.         pluginId = value1

  2952.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2953. 

  2954.         if pwidget is not None:

  2955.             pwidget.showRenameDialog()

  2956. 

  2957.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2958.         pluginId = value1

  2959.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2960. 

  2961.         if pwidget is not None:

  2962.             pwidget.showReplaceDialog()

  2963. 

  2964.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2965.         pluginId = value1

  2966. 

  2967.         if not host.remove_plugin(pluginId):

  2968.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2969.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2970. 

  2971.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2972.         pluginId = value1

  2973.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2974. 

  2975.         if pwidget is not None:

  2976.             pwidget.showCustomUI()

  2977. 

  2978.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2979.         gCarla.gui.slot_showPluginActionsMenu()

  2980. 

  2981.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  2982.         if gCarla.gui.fIsProjectLoading:

  2983.             return

  2984.         if not host.is_engine_running():

  2985.             return

  2986.         pluginId = value1

  2987.         width, height = [int(v) for v in valueStr.split(":")]

  2988.         return host.render_inline_display(pluginId, width, height)

  2989. 

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

  2991. # Engine callback

  2992. 

  2993. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2994.     # kdevelop likes this :)

  2995.     if False: host = CarlaHostNull()

  2996. 

  2997.     valueStr = charPtrToString(valueStr)

  2998. 

  2999.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3000.         host.processMode   = value1

  3001.         host.transportMode = value2

  3002.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3003.         host.processMode   = value1

  3004.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3005.         host.transportMode  = value1

  3006.         host.transportExtra = valueStr

  3007. 

  3008.     if action == ENGINE_CALLBACK_DEBUG:

  3009.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3010.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3011.         host.PluginAddedCallback.emit(pluginId, valueStr)

  3012.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3013.         host.PluginRemovedCallback.emit(pluginId)

  3014.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3015.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3016.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3017.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3018.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3019.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3020.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3021.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3022.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3023.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3024.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3025.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3026.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3027.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3028.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3029.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3030.         host.ProgramChangedCallback.emit(pluginId, value1)

  3031.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3032.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3033.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3034.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3035.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3036.         host.UiStateChangedCallback.emit(pluginId, value1)

  3037.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3038.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3039.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3040.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3041.     elif action == ENGINE_CALLBACK_UPDATE:

  3042.         host.UpdateCallback.emit(pluginId)

  3043.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3044.         host.ReloadInfoCallback.emit(pluginId)

  3045.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3046.         host.ReloadParametersCallback.emit(pluginId)

  3047.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3048.         host.ReloadProgramsCallback.emit(pluginId)

  3049.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3050.         host.ReloadAllCallback.emit(pluginId)

  3051.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3052.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3053.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3054.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3055.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3056.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3057.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3058.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3059.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3060.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3061.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3062.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3063.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3064.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3065.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3066.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3067.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3068.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3069.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3070.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3071.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3072.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3073.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3074.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3075.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3076.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3077.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3078.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3079.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3080.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3081.         host.EngineStoppedCallback.emit()

  3082.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3083.         host.ProcessModeChangedCallback.emit(value1)

  3084.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3085.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3086.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3087.         host.BufferSizeChangedCallback.emit(value1)

  3088.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3089.         host.SampleRateChangedCallback.emit(valuef)

  3090.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3091.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3092.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3093.         host.ProjectLoadFinishedCallback.emit()

  3094.     elif action == ENGINE_CALLBACK_NSM:

  3095.         host.NSMCallback.emit(value1, value2, valueStr)

  3096.     elif action == ENGINE_CALLBACK_IDLE:

  3097.         QApplication.processEvents()

  3098.     elif action == ENGINE_CALLBACK_INFO:

  3099.         host.InfoCallback.emit(valueStr)

  3100.     elif action == ENGINE_CALLBACK_ERROR:

  3101.         host.ErrorCallback.emit(valueStr)

  3102.     elif action == ENGINE_CALLBACK_QUIT:

  3103.         host.QuitCallback.emit()

  3104.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3105.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3106.     else:

  3107.         print("unhandled action", action)

  3108. 

  3109. # ------------------------------------------------------------------------------------------------------------

  3110. # File callback

  3111. 

  3112. def fileCallback(ptr, action, isDir, title, filter):

  3113.     title  = charPtrToString(title)

  3114.     filter = charPtrToString(filter)

  3115. 

  3116.     if action == FILE_CALLBACK_OPEN:

  3117.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3118.     elif action == FILE_CALLBACK_SAVE:

  3119.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3120.     else:

  3121.         ret, ok = ("", "")

  3122. 

  3123.     # FIXME use ok value, test if it works as expected

  3124.     if not ret:

  3125.         return None

  3126. 

  3127.     # FIXME

  3128.     global fileRet

  3129.     fileRet = c_char_p(ret.encode("utf-8"))

  3130.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3131.     return retval.contents.value

  3132. 

  3133. # ------------------------------------------------------------------------------------------------------------

  3134. # Init host

  3135. 

  3136. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3137.     pathBinaries, pathResources = getPaths(libPrefix)

  3138. 

  3139.     # --------------------------------------------------------------------------------------------------------

  3140.     # Fail if binary dir is not found

  3141. 

  3142.     if not os.path.exists(pathBinaries):

  3143.         if failError:

  3144.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3145.             sys.exit(1)

  3146.         return

  3147. 

  3148.     # --------------------------------------------------------------------------------------------------------

  3149.     # Check if we should open main lib as local or global

  3150. 

  3151.     settings = QSafeSettings("falkTX", "Carla2")

  3152. 

  3153.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3154. 

  3155.     # --------------------------------------------------------------------------------------------------------

  3156.     # Set Carla library name

  3157. 

  3158.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3159.     libname   = os.path.join(pathBinaries, libname)

  3160.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3161. 

  3162.     # --------------------------------------------------------------------------------------------------------

  3163.     # Print info

  3164. 

  3165.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3166.         print("Carla %s started, status:" % VERSION)

  3167.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3168.         print("  Qt version:     %s" % QT_VERSION_STR)

  3169.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3170.         print("  Binary dir:     %s" % pathBinaries)

  3171.         print("  Resources dir:  %s" % pathResources)

  3172. 

  3173.     # --------------------------------------------------------------------------------------------------------

  3174.     # Init host

  3175. 

  3176.     if failError:

  3177.         # no try

  3178.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3179.     else:

  3180.         try:

  3181.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3182.         except:

  3183.             host = CarlaHostQtNull()

  3184. 

  3185.     host.isControl = isControl

  3186.     host.isPlugin  = isPlugin

  3187. 

  3188.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3189.     host.set_file_callback(fileCallback)

  3190. 

  3191.     # If it's a plugin the paths are already set

  3192.     if not isPlugin:

  3193.         host.pathBinaries  = pathBinaries

  3194.         host.pathResources = pathResources

  3195.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3196.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3197. 

  3198.         if not isControl:

  3199.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3200. 

  3201.     # --------------------------------------------------------------------------------------------------------

  3202.     # Init utils

  3203. 

  3204.     gCarla.utils = CarlaUtils(utilsname)

  3205.     gCarla.utils.set_process_name(os.path.basename(initName))

  3206. 

  3207.     try:

  3208.         sys.stdout.flush()

  3209.     except:

  3210.         pass

  3211. 

  3212.     sys.stdout = CarlaPrint(False)

  3213.     sys.stderr = CarlaPrint(True)

  3214.     sys.excepthook = sys_excepthook

  3215. 

  3216.     # --------------------------------------------------------------------------------------------------------

  3217.     # Done

  3218. 

  3219.     return host

  3220. 

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

  3222. # Load host settings

  3223. 

  3224. def loadHostSettings(host):

  3225.     # kdevelop likes this :)

  3226.     if False: host = CarlaHostNull()

  3227. 

  3228.     settings = QSafeSettings("falkTX", "Carla2")

  3229. 

  3230.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3231.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3232.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3233.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3234.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3235.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3236.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3237.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3238.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3239.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3240.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3241.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3242.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3243.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3244. 

  3245.     if host.isPlugin:

  3246.         return

  3247. 

  3248.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3249. 

  3250.     # enums

  3251.     if host.audioDriverForced is None:

  3252.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3253. 

  3254.     if not host.processModeForced:

  3255.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3256. 

  3257.     host.nextProcessMode = host.processMode

  3258. 

  3259.     # --------------------------------------------------------------------------------------------------------

  3260.     # fix things if needed

  3261. 

  3262.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3263.         if LADISH_APP_NAME:

  3264.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3265.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3266. 

  3267.         else:

  3268.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3269. 

  3270.     if gCarla.nogui:

  3271.         host.showLogs = False

  3272. 

  3273.     # --------------------------------------------------------------------------------------------------------

  3274.     # run headless host now if nogui option enabled

  3275. 

  3276.     if gCarla.nogui:

  3277.         runHostWithoutUI(host)

  3278. 

  3279. # ------------------------------------------------------------------------------------------------------------

  3280. # Set host settings

  3281. 

  3282. def setHostSettings(host):

  3283.     # kdevelop likes this :)

  3284.     if False: host = CarlaHostNull()

  3285. 

  3286.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3287.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3288.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3289.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3290.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3291.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3292.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3293.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3294. 

  3295.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3296.         return

  3297. 

  3298.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3299.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3300.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3301. 

  3302.     if not (NSM_URL and host.nsmOK):

  3303.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3304. 

  3305. # ------------------------------------------------------------------------------------------------------------

  3306. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3307. 

  3308. def setEngineSettings(host, oscPort = None):

  3309.     # kdevelop likes this :)

  3310.     if False: host = CarlaHostNull()

  3311. 

  3312.     # --------------------------------------------------------------------------------------------------------

  3313.     # do nothing if control

  3314. 

  3315.     if host.isControl:

  3316.         return "Control"

  3317. 

  3318.     # --------------------------------------------------------------------------------------------------------

  3319. 

  3320.     settings = QSafeSettings("falkTX", "Carla2")

  3321. 

  3322.     # --------------------------------------------------------------------------------------------------------

  3323.     # main settings

  3324. 

  3325.     setHostSettings(host)

  3326. 

  3327.     # --------------------------------------------------------------------------------------------------------

  3328.     # file paths

  3329. 

  3330.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3331.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3332. 

  3333.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3334.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3335. 

  3336.     # --------------------------------------------------------------------------------------------------------

  3337.     # plugin paths

  3338. 

  3339.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3340.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3341.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3342.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3343.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3344.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3345.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3346. 

  3347.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3348.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3349.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3350.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3351.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3352.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3353.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3354. 

  3355.     # --------------------------------------------------------------------------------------------------------

  3356.     # don't continue if plugin

  3357. 

  3358.     if host.isPlugin:

  3359.         return "Plugin"

  3360. 

  3361.     # --------------------------------------------------------------------------------------------------------

  3362.     # osc settings

  3363. 

  3364.     if oscPort is not None and isinstance(oscPort, int):

  3365.         oscEnabled = True

  3366.         portNumTCP = portNumUDP = oscPort

  3367. 

  3368.     else:

  3369.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3370. 

  3371.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3372.             portNumTCP = -1

  3373.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3374.             portNumTCP = 0

  3375.         else:

  3376.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3377. 

  3378.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3379.             portNumUDP = -1

  3380.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3381.             portNumUDP = 0

  3382.         else:

  3383.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3384. 

  3385.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3386.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3387.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3388. 

  3389.     # --------------------------------------------------------------------------------------------------------

  3390.     # wine settings

  3391. 

  3392.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3393.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3394.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3395.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3396.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3397.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3398. 

  3399.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3400.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3401.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3402.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3403.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3404.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3405. 

  3406.     # --------------------------------------------------------------------------------------------------------

  3407.     # driver and device settings

  3408. 

  3409.     # driver name

  3410.     if host.audioDriverForced is not None:

  3411.         audioDriver = host.audioDriverForced

  3412.     else:

  3413.         try:

  3414.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3415.         except:

  3416.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3417. 

  3418.     # driver options

  3419.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3420.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3421.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3422.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3423. 

  3424.     # Only setup audio things if engine is not running

  3425.     if not host.is_engine_running():

  3426.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3427.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3428. 

  3429.         if not audioDriver.startswith("JACK"):

  3430.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3431.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3432.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3433. 

  3434.     # --------------------------------------------------------------------------------------------------------

  3435.     # fix things if needed

  3436. 

  3437.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3438.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3439.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3440. 

  3441.     # --------------------------------------------------------------------------------------------------------

  3442.     # return selected driver name

  3443. 

  3444.     return audioDriver

  3445. 

  3446. # ------------------------------------------------------------------------------------------------------------

  3447. # Run Carla without showing UI

  3448. 

  3449. def runHostWithoutUI(host):

  3450.     # kdevelop likes this :)

  3451.     if False: host = CarlaHostNull()

  3452. 

  3453.     # --------------------------------------------------------------------------------------------------------

  3454.     # Some initial checks

  3455. 

  3456.     if not gCarla.nogui:

  3457.         return

  3458. 

  3459.     projectFile = getInitialProjectFile(True)

  3460. 

  3461.     if not isinstance(gCarla.nogui, int):

  3462.         oscPort = None

  3463. 

  3464.         if not projectFile:

  3465.             print("Carla no-gui mode can only be used together with a project file.")

  3466.             sys.exit(1)

  3467. 

  3468.     else:

  3469.         oscPort = gCarla.nogui

  3470. 

  3471.     # --------------------------------------------------------------------------------------------------------

  3472.     # Additional imports

  3473. 

  3474.     from time import sleep

  3475. 

  3476.     # --------------------------------------------------------------------------------------------------------

  3477.     # Init engine

  3478. 

  3479.     audioDriver = setEngineSettings(host, oscPort)

  3480.     if not host.engine_init(audioDriver, "Carla"):

  3481.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3482.         sys.exit(1)

  3483. 

  3484.     if projectFile and not host.load_project(projectFile):

  3485.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3486.         host.engine_close()

  3487.         sys.exit(1)

  3488. 

  3489.     # --------------------------------------------------------------------------------------------------------

  3490.     # Idle

  3491. 

  3492.     print("Carla ready!")

  3493. 

  3494.     while host.is_engine_running() and not gCarla.term:

  3495.         host.engine_idle()

  3496.         sleep(0.0333) # 30 Hz

  3497. 

  3498.     # --------------------------------------------------------------------------------------------------------

  3499.     # Stop

  3500. 

  3501.     host.engine_close()

  3502.     sys.exit(0)

  3503. 

  3504. # ------------------------------------------------------------------------------------------------------------