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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) 2011-2022 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 import *

  57. from carla_backend_qt import CarlaHostQtDLL, CarlaHostQtNull

  58. from carla_frontend import CarlaFrontendLib

  59. from carla_shared import *

  60. from carla_settings import *

  61. from carla_utils import *

  62. from carla_widgets import *

  63. 

  64. from patchcanvas import patchcanvas

  65. from pluginlist import PluginListDialog

  66. from widgets.digitalpeakmeter import DigitalPeakMeter

  67. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  68. 

  69. # ------------------------------------------------------------------------------------------------------------

  70. # Try Import OpenGL

  71. 

  72. try:

  73.     from PyQt5.QtOpenGL import QGLWidget

  74.     hasGL = True

  75. except:

  76.     hasGL = False

  77. 

  78. # ------------------------------------------------------------------------------------------------------------

  79. # Safe exception hook, needed for PyQt5

  80. 

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

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

  83. 

  84. # ------------------------------------------------------------------------------------------------------------

  85. # Session Management support

  86. 

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

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

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

  90. 

  91. # ------------------------------------------------------------------------------------------------------------

  92. # Small print helper

  93. 

  94. def processMode2Str(processMode):

  95.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  96.         return "Single client"

  97.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  98.         return "Multi client"

  99.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  100.         return "Continuous Rack"

  101.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  102.         return "Patchbay"

  103.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  104.         return "Bridge"

  105.     return "Unknown"

  106. 

  107. # ------------------------------------------------------------------------------------------------------------

  108. # Carla Print class

  109. 

  110. class CarlaPrint:

  111.     def __init__(self, err):

  112.         self.err = err

  113. 

  114.     def flush(self):

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

  116. 

  117.     def write(self, string):

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

  119. 

  120. # ------------------------------------------------------------------------------------------------------------

  121. # Host Window

  122. 

  123. class HostWindow(QMainWindow):

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

  125.     # signals

  126.     SIGTERM = pyqtSignal()

  127.     SIGUSR1 = pyqtSignal()

  128. 

  129.     # CustomActions

  130.     CUSTOM_ACTION_NONE         = 0

  131.     CUSTOM_ACTION_APP_CLOSE    = 1

  132.     CUSTOM_ACTION_PROJECT_LOAD = 2

  133. 

  134.     # --------------------------------------------------------------------------------------------------------

  135. 

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

  137.         QMainWindow.__init__(self, parent)

  138.         self.host = host

  139.         self.ui = ui_carla_host.Ui_CarlaHostW()

  140.         self.ui.setupUi(self)

  141.         gCarla.gui = self

  142. 

  143.         if False:

  144.             # kdevelop likes this :)

  145.             host = CarlaHostNull()

  146.             self.host = host

  147. 

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

  149. 

  150.         self.fParentOrSelf = parent or self

  151. 

  152.         # ----------------------------------------------------------------------------------------------------

  153.         # Internal stuff

  154. 

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

  156.         self.fIdleTimerFast = 0

  157.         self.fIdleTimerSlow = 0

  158. 

  159.         self.fLadspaRdfNeedsUpdate = True

  160.         self.fLadspaRdfList = []

  161. 

  162.         self.fPluginCount = 0

  163.         self.fPluginList  = []

  164. 

  165.         self.fPluginDatabaseDialog = None

  166.         self.fFavoritePlugins = []

  167. 

  168.         self.fProjectFilename  = ""

  169.         self.fIsProjectLoading = False

  170.         self.fCurrentlyRemovingAllPlugins = False

  171.         self.fHasLoadedLv2Plugins = False

  172. 

  173.         self.fLastTransportBPM   = 0.0

  174.         self.fLastTransportFrame = 0

  175.         self.fLastTransportState = False

  176.         self.fBufferSize         = 0

  177.         self.fSampleRate         = 0.0

  178.         self.fOscAddressTCP      = ""

  179.         self.fOscAddressUDP      = ""

  180. 

  181.         if MACOS:

  182.             self.fMacClosingHelper = True

  183. 

  184.         # CancelableActionCallback Box

  185.         self.fCancelableActionBox = None

  186. 

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

  188.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  189. 

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

  191.         self.fFirstEngineInit = True

  192. 

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

  194.         self.fSavedSettings = {}

  195. 

  196.         # true if NSM server handles our window management

  197.         self.fWindowCloseHideGui = False

  198. 

  199.         if host.isControl:

  200.             self.fClientName         = "Carla-Control"

  201.             self.fSessionManagerName = "Control"

  202.         elif host.isPlugin:

  203.             self.fClientName         = "Carla-Plugin"

  204.             self.fSessionManagerName = "Plugin"

  205.         elif LADISH_APP_NAME:

  206.             self.fClientName         = LADISH_APP_NAME

  207.             self.fSessionManagerName = "LADISH"

  208.         elif NSM_URL and host.nsmOK:

  209.             self.fClientName         = "Carla.tmp"

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

  211.             self.fWindowCloseHideGui = True

  212.         else:

  213.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  214.             self.fSessionManagerName = ""

  215. 

  216.         # ----------------------------------------------------------------------------------------------------

  217.         # Internal stuff (patchbay)

  218. 

  219.         self.fPeaksCleared = True

  220. 

  221.         self.fExternalPatchbay = False

  222.         self.fSelectedPlugins  = []

  223. 

  224.         self.fCanvasWidth  = 0

  225.         self.fCanvasHeight = 0

  226.         self.fMiniCanvasUpdateTimeout = 0

  227. 

  228.         self.fWithCanvas = withCanvas

  229. 

  230.         # ----------------------------------------------------------------------------------------------------

  231.         # Internal stuff (logs)

  232. 

  233.         self.autoscrollOnNewLog = True

  234.         self.lastLogSliderPos = 0

  235. 

  236.         # ----------------------------------------------------------------------------------------------------

  237.         # Set up GUI (engine stopped)

  238. 

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

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

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

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

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

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

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

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

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

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

  249. 

  250.             if self.host.isControl:

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

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

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

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

  255.             else:

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

  257. 

  258.                 if not withCanvas:

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

  260. 

  261.         else:

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

  263. 

  264.             if WINDOWS:

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

  266. 

  267.         if self.host.isControl:

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

  269.         else:

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

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

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

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

  274. 

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

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

  277. 

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

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

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

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

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

  283. 

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

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

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

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

  288. 

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

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

  291. 

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

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

  294. 

  295.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  313.             self.ui.tw_miniCanvas.hide()

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

  315.             if WINDOWS:

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

  317. 

  318.         # ----------------------------------------------------------------------------------------------------

  319.         # Set up GUI (disk)

  320. 

  321.         exts = gCarla.utils.get_supported_file_extensions()

  322. 

  323.         self.fDirModel = QFileSystemModel(self)

  324.         self.fDirModel.setRootPath(HOME)

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

  326. 

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

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

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

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

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

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

  333. 

  334.         # ----------------------------------------------------------------------------------------------------

  335.         # Set up GUI (transport)

  336. 

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

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

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

  340. 

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

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

  343. 

  344.         if minLabelWidth < labelTimeWidth:

  345.             minLabelWidth = labelTimeWidth

  346.         if minLabelWidth < labelBBTWidth:

  347.             minLabelWidth = labelBBTWidth

  348. 

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

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

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

  352. 

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

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

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

  356. 

  357.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  370. 

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

  372. 

  373.         # ----------------------------------------------------------------------------------------------------

  374.         # Set up GUI (rack)

  375. 

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

  377. 

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

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

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

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

  382. 

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

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

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

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

  387. 

  388.         self.updateStyle()

  389. 

  390.         self.ui.rack.setStyleSheet("""

  391.           CarlaRackList#CarlaRackList {

  392.             background-color: black;

  393.           }

  394.         """)

  395. 

  396.         # ----------------------------------------------------------------------------------------------------

  397.         # Set up GUI (patchbay)

  398. 

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

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

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

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

  403. 

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

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

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

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

  408. 

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

  410.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  412. 

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

  414. 

  415.         self.ui.miniCanvasPreview.setRealParent(self)

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

  417. 

  418.         # ----------------------------------------------------------------------------------------------------

  419.         # Set up GUI (logs)

  420. 

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

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

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

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

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

  426. 

  427.         # ----------------------------------------------------------------------------------------------------

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

  429. 

  430.         if MACOS:

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

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

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

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

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

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

  437. 

  438.         # ----------------------------------------------------------------------------------------------------

  439.         # Load Settings

  440. 

  441.         self.loadSettings(True)

  442. 

  443.         # ----------------------------------------------------------------------------------------------------

  444.         # Set-up Canvas

  445. 

  446.         if withCanvas:

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

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

  449. 

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

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

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

  453. 

  454.             self.setupCanvas()

  455. 

  456.         # ----------------------------------------------------------------------------------------------------

  457.         # Set-up Icons

  458. 

  459.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  487.             self.ui.logs_clear.setIcon(getIcon('edit-clear', 16, 'svgz'))

  488.             self.ui.logs_save.setIcon(getIcon('document-save', 16, 'svgz'))

  489. 

  490.         # ----------------------------------------------------------------------------------------------------

  491.         # Connect actions to functions

  492. 

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

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

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

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

  497. 

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

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

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

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

  502. 

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

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

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

  506. 

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

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

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

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

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

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

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

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

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

  516. 

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

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

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

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

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

  522. 

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

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

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

  526. 

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

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

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

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

  531. 

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

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

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

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

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

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

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

  539. 

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

  541. 

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

  543. 

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

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

  546. 

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

  548.         self.ui.toolBar.visibilityChanged.connect(self.slot_toolbarVisibilityChanged)

  549. 

  550.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  570. 

  571.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  572.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  573. 

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

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

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

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

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

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

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

  581. 

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

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

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

  585. 

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

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

  588. 

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

  590. 

  591.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

  605. 

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

  607. 

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

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

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

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

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

  613. 

  614.         # ----------------------------------------------------------------------------------------------------

  615.         # Final setup

  616. 

  617.         self.ui.text_logs.clear()

  618.         self.slot_logButtonsState(False)

  619.         self.setProperWindowTitle()

  620. 

  621.         # Disable non-supported features

  622.         features = gCarla.utils.get_supported_features()

  623. 

  624.         if "link" not in features:

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

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

  627. 

  628.         if "juce" not in features:

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

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

  631. 

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

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

  634.             self.startTimers()

  635. 

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

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

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

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

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

  641. 

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

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

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

  645. 

  646.         # Load initial project file if set

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

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

  649. 

  650.             if projectFile:

  651.                 self.loadProjectLater(projectFile)

  652. 

  653.         # For NSM we wait for the open message

  654.         if NSM_URL and host.nsmOK:

  655.             host.nsm_ready(NSM_CALLBACK_INIT)

  656.             return

  657. 

  658.         if not host.isControl:

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

  660. 

  661.     # --------------------------------------------------------------------------------------------------------

  662.     # Manage visibility state, needed for NSM

  663. 

  664.     def hideForNSM(self):

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

  666.             if pitem is None:

  667.                 continue

  668.             pitem.getWidget().hideCustomUI()

  669.         self.hide()

  670. 

  671.     def showIfNeeded(self):

  672.         if self.host.nsmOK:

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

  674.             QApplication.instance().setQuitOnLastWindowClosed(False)

  675.         else:

  676.             self.show()

  677. 

  678.     # --------------------------------------------------------------------------------------------------------

  679.     # Setup

  680. 

  681.     def compactPlugin(self, pluginId):

  682.         if pluginId > self.fPluginCount:

  683.             return

  684. 

  685.         pitem = self.fPluginList[pluginId]

  686. 

  687.         if pitem is None:

  688.             return

  689. 

  690.         pitem.recreateWidget(True)

  691. 

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

  693.         if pluginId > self.fPluginCount:

  694.             return

  695. 

  696.         pitem = self.fPluginList[pluginId]

  697. 

  698.         if pitem is None:

  699.             return

  700. 

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

  702.         pitem.recreateWidget(newColor = color)

  703. 

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

  705.         if pluginId > self.fPluginCount:

  706.             return

  707. 

  708.         pitem = self.fPluginList[pluginId]

  709. 

  710.         if pitem is None:

  711.             return

  712. 

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

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

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

  716.         else:

  717.             pitem.recreateWidget(newSkin = skin)

  718. 

  719.     def findPluginInPatchbay(self, pluginId):

  720.         if pluginId > self.fPluginCount:

  721.             return

  722. 

  723.         if self.fExternalPatchbay:

  724.             self.slot_canvasShowInternal()

  725. 

  726.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  728.             if not patchcanvas.focusGroupUsingGroupName(name):

  729.                 return

  730. 

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

  732. 

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

  734.         if pluginIdA == pluginIdB:

  735.             return

  736.         if pluginIdA < 0 or pluginIdB < 0:

  737.             return

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

  739.             return

  740. 

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

  742. 

  743.         itemA = self.fPluginList[pluginIdA]

  744.         compactA = itemA.isCompacted()

  745.         guiShownA = itemA.isGuiShown()

  746. 

  747.         itemB = self.fPluginList[pluginIdB]

  748.         compactB = itemB.isCompacted()

  749.         guiShownB = itemB.isGuiShown()

  750. 

  751.         itemA.setPluginId(pluginIdA)

  752.         itemA.recreateWidget2(compactB, guiShownB)

  753. 

  754.         itemB.setPluginId(pluginIdB)

  755.         itemB.recreateWidget2(compactA, guiShownA)

  756. 

  757.         if self.fWithCanvas:

  758.             self.slot_canvasRefresh()

  759. 

  760.     def setLoadRDFsNeeded(self):

  761.         self.fLadspaRdfNeedsUpdate = True

  762. 

  763.     def setProperWindowTitle(self):

  764.         title = self.fClientName

  765. 

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

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

  768.         if self.fSessionManagerName:

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

  770. 

  771.         self.setWindowTitle(title)

  772. 

  773.     def updateBufferSize(self, newBufferSize):

  774.         if self.fBufferSize == newBufferSize:

  775.             return

  776.         self.fBufferSize = newBufferSize

  777.         self.ui.cb_buffer_size.clear()

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

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

  780. 

  781.     def updateSampleRate(self, newSampleRate):

  782.         if self.fSampleRate == newSampleRate:

  783.             return

  784.         self.fSampleRate = newSampleRate

  785.         self.ui.cb_sample_rate.clear()

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

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

  788.         self.refreshTransport(True)

  789. 

  790.     # --------------------------------------------------------------------------------------------------------

  791.     # Files

  792. 

  793.     def loadProjectNow(self):

  794.         if not self.fProjectFilename:

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

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

  797.             return

  798. 

  799.         self.projectLoadingStarted()

  800.         self.fIsProjectLoading = True

  801. 

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

  803.             self.fIsProjectLoading = False

  804.             self.projectLoadingFinished(True)

  805. 

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

  807.                              self.host.get_last_error(),

  808.                              QMessageBox.Ok, QMessageBox.Ok)

  809. 

  810.     def loadProjectLater(self, filename):

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

  812.         self.setProperWindowTitle()

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

  814. 

  815.     def saveProjectNow(self):

  816.         if not self.fProjectFilename:

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

  818. 

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

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

  821.                              self.host.get_last_error(),

  822.                              QMessageBox.Ok, QMessageBox.Ok)

  823.             return

  824. 

  825.     def projectLoadingStarted(self):

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

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

  828. 

  829.     def projectLoadingFinished(self, refreshCanvas):

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

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

  832. 

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

  834.             return

  835. 

  836.         if refreshCanvas and not self.loadExternalCanvasGroupPositionsIfNeeded(self.fProjectFilename):

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

  838. 

  839.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

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

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

  842.             return False

  843. 

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

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

  846.                 return False

  847. 

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

  849.             try:

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

  851.             except:

  852.                 return False

  853. 

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

  855.         patchcanvas.restoreGroupPositions(canvasdata)

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

  857.         return True

  858. 

  859.     # --------------------------------------------------------------------------------------------------------

  860.     # Files (menu actions)

  861. 

  862.     @pyqtSlot()

  863.     def slot_fileNew(self):

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

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

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

  867.             return

  868. 

  869.         self.pluginRemoveAll()

  870.         self.fProjectFilename = ""

  871.         self.setProperWindowTitle()

  872.         self.host.clear_project_filename()

  873. 

  874.     @pyqtSlot()

  875.     def slot_fileOpen(self):

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

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

  878. 

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

  880.         if not filename:

  881.             return

  882. 

  883.         newFile = True

  884. 

  885.         if self.fPluginCount > 0:

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

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

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

  889. 

  890.         if newFile:

  891.             self.pluginRemoveAll()

  892.             self.fProjectFilename = filename

  893.             self.setProperWindowTitle()

  894.             self.loadProjectNow()

  895.         else:

  896.             filenameOld = self.fProjectFilename

  897.             self.fProjectFilename = filename

  898.             self.loadProjectNow()

  899.             self.fProjectFilename = filenameOld

  900. 

  901.     @pyqtSlot()

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

  903.         if self.fProjectFilename and not saveAs:

  904.             return self.saveProjectNow()

  905. 

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

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

  908. 

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

  910.         if not filename:

  911.             return

  912. 

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

  914.             filename += ".carxp"

  915. 

  916.         if self.fProjectFilename != filename:

  917.             self.fProjectFilename = filename

  918.             self.setProperWindowTitle()

  919. 

  920.         self.saveProjectNow()

  921. 

  922.     @pyqtSlot()

  923.     def slot_fileSaveAs(self):

  924.         self.slot_fileSave(True)

  925. 

  926.     @pyqtSlot()

  927.     def slot_loadProjectNow(self):

  928.         self.loadProjectNow()

  929. 

  930.     # --------------------------------------------------------------------------------------------------------

  931.     # Engine (menu actions)

  932. 

  933.     @pyqtSlot()

  934.     def slot_engineStart(self):

  935.         audioDriver = setEngineSettings(self.host)

  936.         firstInit   = self.fFirstEngineInit

  937. 

  938.         self.fFirstEngineInit = False

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

  940. 

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

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

  943.                 settings = QSafeSettings()

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

  945.                 del settings

  946.                 if lastBpm >= 20.0:

  947.                     self.host.transport_bpm(lastBpm)

  948.             return

  949. 

  950.         elif firstInit:

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

  952.             return

  953. 

  954.         audioError = self.host.get_last_error()

  955. 

  956.         if audioError:

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

  958.         else:

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

  960. 

  961.     @pyqtSlot()

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

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

  964. 

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

  966.             self.engineStopFinal()

  967.             return True

  968. 

  969.         if not forced:

  970.             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"

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

  972.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  973.             if ask != QMessageBox.Yes:

  974.                 return False

  975. 

  976.         return self.slot_engineStopTryAgain()

  977. 

  978.     @pyqtSlot()

  979.     def slot_engineConfig(self):

  980.         engineRunning = self.host.is_engine_running()

  981. 

  982.         if engineRunning:

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

  984. 

  985.         else:

  986.             if self.host.isPlugin:

  987.                 driverName = "Plugin"

  988.                 driverIndex = 0

  989.             elif self.host.audioDriverForced:

  990.                 driverName = self.host.audioDriverForced

  991.                 driverIndex = 0

  992.             else:

  993.                 settings = QSafeSettings()

  994.                 driverName = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  995.                 for i in range(self.host.get_engine_driver_count()):

  996.                     if self.host.get_engine_driver_name(i) == driverName:

  997.                         driverIndex = i

  998.                         break

  999.                 else:

  1000.                     driverIndex = -1

  1001.                 del settings

  1002.             dialog = DriverSettingsW(self.fParentOrSelf, self.host, driverIndex, driverName)

  1003.             dialog.ui.ico_restart.hide()

  1004.             dialog.ui.label_restart.hide()

  1005.             dialog.adjustSize()

  1006. 

  1007.         if not dialog.exec_():

  1008.             return

  1009. 

  1010.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  1011. 

  1012.         if engineRunning:

  1013.             self.host.set_engine_buffer_size_and_sample_rate(bufferSize, sampleRate)

  1014.         else:

  1015.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  1016.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  1017.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  1018. 

  1019.     @pyqtSlot()

  1020.     def slot_engineStopTryAgain(self):

  1021.         if self.host.is_engine_running() and not self.host.set_engine_about_to_close():

  1022.             QTimer.singleShot(0, self.slot_engineStopTryAgain)

  1023.             return False

  1024. 

  1025.         self.engineStopFinal()

  1026.         return True

  1027. 

  1028.     def engineStopFinal(self):

  1029.         patchcanvas.handleAllPluginsRemoved()

  1030.         self.killTimers()

  1031. 

  1032.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1033.             self.removeAllPlugins()

  1034.         else:

  1035.             self.fProjectFilename = ""

  1036.             self.setProperWindowTitle()

  1037.             if self.fPluginCount != 0:

  1038.                 self.fCurrentlyRemovingAllPlugins = True

  1039.                 self.projectLoadingStarted()

  1040. 

  1041.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1042.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1043.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1044. 

  1045.         if not self.host.engine_close():

  1046.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1047.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1048. 

  1049.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1050.             self.close()

  1051.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1052.             self.slot_engineStart()

  1053.             self.loadProjectNow()

  1054.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1055. 

  1056.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1057. 

  1058.     # --------------------------------------------------------------------------------------------------------

  1059.     # Engine (host callbacks)

  1060. 

  1061.     @pyqtSlot(int, int, int, int, float, str)

  1062.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

  1063.         self.ui.menu_PluginMacros.setEnabled(True)

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

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

  1066. 

  1067.         self.ui.act_canvas_show_internal.blockSignals(True)

  1068.         self.ui.act_canvas_show_external.blockSignals(True)

  1069. 

  1070.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1071.             self.ui.act_canvas_show_internal.setChecked(True)

  1072.             self.ui.act_canvas_show_internal.setVisible(True)

  1073.             self.ui.act_canvas_show_external.setChecked(False)

  1074.             self.ui.act_canvas_show_external.setVisible(True)

  1075.             self.fExternalPatchbay = False

  1076.         else:

  1077.             self.ui.act_canvas_show_internal.setChecked(False)

  1078.             self.ui.act_canvas_show_internal.setVisible(False)

  1079.             self.ui.act_canvas_show_external.setChecked(True)

  1080.             self.ui.act_canvas_show_external.setVisible(False)

  1081.             self.fExternalPatchbay = not self.host.isPlugin

  1082. 

  1083.         self.ui.act_canvas_show_internal.blockSignals(False)

  1084.         self.ui.act_canvas_show_external.blockSignals(False)

  1085. 

  1086.         if not (self.host.isControl or self.host.isPlugin):

  1087.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1088.             self.ui.act_file_save.setEnabled(canSave)

  1089.             self.ui.act_engine_start.setEnabled(False)

  1090.             self.ui.act_engine_stop.setEnabled(True)

  1091. 

  1092.         if not self.host.isPlugin:

  1093.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1094. 

  1095.         if self.host.isPlugin or not self.fSessionManagerName:

  1096.             self.ui.act_file_open.setEnabled(True)

  1097.             self.ui.act_file_save_as.setEnabled(True)

  1098. 

  1099.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1100.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1101. 

  1102.         if self.ui.cb_transport_link.isEnabled():

  1103.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1104. 

  1105.         self.updateBufferSize(bufferSize)

  1106.         self.updateSampleRate(int(sampleRate))

  1107.         self.refreshRuntimeInfo(0.0, 0)

  1108.         self.startTimers()

  1109. 

  1110.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1111.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1112.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1113.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1114.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1115. 

  1116.     @pyqtSlot()

  1117.     def slot_handleEngineStoppedCallback(self):

  1118.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1119. 

  1120.         if self.fWithCanvas:

  1121.             patchcanvas.clear()

  1122. 

  1123.         self.killTimers()

  1124. 

  1125.         # just in case

  1126.         self.removeAllPlugins()

  1127.         self.refreshRuntimeInfo(0.0, 0)

  1128. 

  1129.         self.ui.menu_PluginMacros.setEnabled(False)

  1130.         self.ui.menu_Canvas.setEnabled(False)

  1131.         self.ui.w_transport.setEnabled(False)

  1132. 

  1133.         if not (self.host.isControl or self.host.isPlugin):

  1134.             self.ui.act_file_save.setEnabled(False)

  1135.             self.ui.act_engine_start.setEnabled(True)

  1136.             self.ui.act_engine_stop.setEnabled(False)

  1137. 

  1138.         if self.host.isPlugin or not self.fSessionManagerName:

  1139.             self.ui.act_file_open.setEnabled(False)

  1140.             self.ui.act_file_save_as.setEnabled(False)

  1141. 

  1142.     @pyqtSlot(int, str)

  1143.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1144.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1145. 

  1146.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1147.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1148. 

  1149.     @pyqtSlot(int)

  1150.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1151.         self.updateBufferSize(newBufferSize)

  1152. 

  1153.     @pyqtSlot(float)

  1154.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1155.         self.updateSampleRate(int(newSampleRate))

  1156. 

  1157.     @pyqtSlot(int, bool, str)

  1158.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1159.         if self.fCancelableActionBox is not None:

  1160.             self.fCancelableActionBox.close()

  1161. 

  1162.         if started:

  1163.             self.fCancelableActionBox = QMessageBox(self)

  1164.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1165.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1166.             self.fCancelableActionBox.setText(action)

  1167.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1168.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1169.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1170.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1171.             self.fCancelableActionBox.show()

  1172. 

  1173.         else:

  1174.             self.fCancelableActionBox = None

  1175. 

  1176.     @pyqtSlot()

  1177.     def slot_canlableActionBoxClicked(self):

  1178.         self.host.cancel_engine_action()

  1179. 

  1180.     @pyqtSlot()

  1181.     def slot_handleProjectLoadFinishedCallback(self):

  1182.         self.fIsProjectLoading = False

  1183.         self.projectLoadingFinished(False)

  1184. 

  1185.     # --------------------------------------------------------------------------------------------------------

  1186.     # Plugins

  1187. 

  1188.     def removeAllPlugins(self):

  1189.         self.ui.act_plugin_remove_all.setEnabled(False)

  1190.         patchcanvas.handleAllPluginsRemoved()

  1191. 

  1192.         while self.ui.listWidget.takeItem(0):

  1193.             pass

  1194. 

  1195.         self.clearSideStuff()

  1196. 

  1197.         for pitem in self.fPluginList:

  1198.             if pitem is None:

  1199.                 continue

  1200. 

  1201.             pitem.close()

  1202.             del pitem

  1203. 

  1204.         self.fPluginCount = 0

  1205.         self.fPluginList  = []

  1206. 

  1207.     # --------------------------------------------------------------------------------------------------------

  1208.     # Plugins (menu actions)

  1209. 

  1210.     def showAddPluginDialog(self):

  1211.         #ret = gCarla.felib.createAndExecPluginListDialog(self.fParentOrSelf,

  1212.                                                          #self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1213.         #print(ret)

  1214.         #return

  1215. 

  1216.         if self.fPluginDatabaseDialog is None:

  1217.             self.fPluginDatabaseDialog = PluginListDialog(self.fParentOrSelf, self.host,

  1218.                                                           self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1219.         dialog = self.fPluginDatabaseDialog

  1220.         dialog.hasLoadedLv2Plugins = self.fHasLoadedLv2Plugins

  1221. 

  1222.         ret = dialog.exec_()

  1223. 

  1224.         if dialog.fFavoritePluginsChanged:

  1225.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1226. 

  1227.         if not ret:

  1228.             return

  1229. 

  1230.         if not self.host.is_engine_running():

  1231.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1232.             return

  1233. 

  1234.         btype    = dialog.fRetPlugin['build']

  1235.         ptype    = dialog.fRetPlugin['type']

  1236.         filename = dialog.fRetPlugin['filename']

  1237.         label    = dialog.fRetPlugin['label']

  1238.         uniqueId = dialog.fRetPlugin['uniqueId']

  1239.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1240. 

  1241.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1242. 

  1243.     def showAddJackAppDialog(self):

  1244.         ret = gCarla.felib.createAndExecJackAppDialog(self.fParentOrSelf, self.fProjectFilename)

  1245. 

  1246.         if not ret:

  1247.             return

  1248. 

  1249.         if not self.host.is_engine_running():

  1250.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1251.             return

  1252. 

  1253.         return ret

  1254. 

  1255.     @pyqtSlot()

  1256.     def slot_favoritePluginAdd(self):

  1257.         plugin = self.sender().data()

  1258. 

  1259.         if plugin is None:

  1260.             return

  1261. 

  1262.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1263.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1264.             # remove plugin from favorites

  1265.             try:

  1266.                 self.fFavoritePlugins.remove(plugin)

  1267.             except ValueError:

  1268.                 pass

  1269.             else:

  1270.                 settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1271.                 settingsDBf.setValue("PluginDatabase/Favorites", self.fFavoritePlugins)

  1272.                 settingsDBf.sync()

  1273.                 del settingsDBf

  1274. 

  1275.             CustomMessageBox(self,

  1276.                              QMessageBox.Critical,

  1277.                              self.tr("Error"),

  1278.                              self.tr("Failed to load plugin"),

  1279.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1280. 

  1281.     @pyqtSlot()

  1282.     def slot_showPluginActionsMenu(self):

  1283.         menu = QMenu(self)

  1284. 

  1285.         menu.addSection("Plugins")

  1286.         menu.addAction(self.ui.act_plugin_add)

  1287. 

  1288.         if len(self.fFavoritePlugins) != 0:

  1289.             fmenu = QMenu("Add from favorites", self)

  1290.             for p in self.fFavoritePlugins:

  1291.                 act = fmenu.addAction(p['name'])

  1292.                 act.setData(p)

  1293.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1294.             menu.addMenu(fmenu)

  1295. 

  1296.         menu.addAction(self.ui.act_plugin_remove_all)

  1297. 

  1298.         menu.addSection("All plugins (macros)")

  1299.         menu.addAction(self.ui.act_plugins_enable)

  1300.         menu.addAction(self.ui.act_plugins_disable)

  1301.         menu.addSeparator()

  1302.         menu.addAction(self.ui.act_plugins_volume100)

  1303.         menu.addAction(self.ui.act_plugins_mute)

  1304.         menu.addSeparator()

  1305.         menu.addAction(self.ui.act_plugins_wet100)

  1306.         menu.addAction(self.ui.act_plugins_bypass)

  1307.         menu.addSeparator()

  1308.         menu.addAction(self.ui.act_plugins_center)

  1309.         menu.addSeparator()

  1310.         menu.addAction(self.ui.act_plugins_compact)

  1311.         menu.addAction(self.ui.act_plugins_expand)

  1312. 

  1313.         menu.exec_(QCursor.pos())

  1314. 

  1315.     @pyqtSlot()

  1316.     def slot_pluginAdd(self):

  1317.         data = self.showAddPluginDialog()

  1318. 

  1319.         if data is None:

  1320.             return

  1321. 

  1322.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1323. 

  1324.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1325.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1326.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1327. 

  1328.     @pyqtSlot()

  1329.     def slot_confirmRemoveAll(self):

  1330.         if self.fPluginCount == 0:

  1331.             return

  1332. 

  1333.         if QMessageBox.question(self, self.tr("Remove All"),

  1334.                                       self.tr("Are you sure you want to remove all plugins?"),

  1335.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1336.             return

  1337. 

  1338.         self.pluginRemoveAll()

  1339. 

  1340.     def pluginRemoveAll(self):

  1341.         if self.fPluginCount == 0:

  1342.             return

  1343. 

  1344.         self.fCurrentlyRemovingAllPlugins = True

  1345.         self.projectLoadingStarted()

  1346. 

  1347.         if not self.host.remove_all_plugins():

  1348.             self.projectLoadingFinished(True)

  1349.             self.fCurrentlyRemovingAllPlugins = False

  1350.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1351.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1352. 

  1353.     @pyqtSlot()

  1354.     def slot_jackAppAdd(self):

  1355.         data = self.showAddJackAppDialog()

  1356. 

  1357.         if data is None:

  1358.             return

  1359. 

  1360.         if not data['command']:

  1361.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1362.                              self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1363.             return

  1364. 

  1365.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK,

  1366.                                     data['command'], data['name'], data['labelSetup'],

  1367.                                     0, None, PLUGIN_OPTIONS_NULL):

  1368.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1369.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1370. 

  1371.     # --------------------------------------------------------------------------------------------------------

  1372.     # Plugins (macros)

  1373. 

  1374.     @pyqtSlot()

  1375.     def slot_pluginsEnable(self):

  1376.         if not self.host.is_engine_running():

  1377.             return

  1378. 

  1379.         for pitem in self.fPluginList:

  1380.             if pitem is None:

  1381.                 break

  1382. 

  1383.             pitem.getWidget().setActive(True, True, True)

  1384. 

  1385.     @pyqtSlot()

  1386.     def slot_pluginsDisable(self):

  1387.         if not self.host.is_engine_running():

  1388.             return

  1389. 

  1390.         for pitem in self.fPluginList:

  1391.             if pitem is None:

  1392.                 break

  1393. 

  1394.             pitem.getWidget().setActive(False, True, True)

  1395. 

  1396.     @pyqtSlot()

  1397.     def slot_pluginsVolume100(self):

  1398.         if not self.host.is_engine_running():

  1399.             return

  1400. 

  1401.         for pitem in self.fPluginList:

  1402.             if pitem is None:

  1403.                 break

  1404. 

  1405.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1406. 

  1407.     @pyqtSlot()

  1408.     def slot_pluginsMute(self):

  1409.         if not self.host.is_engine_running():

  1410.             return

  1411. 

  1412.         for pitem in self.fPluginList:

  1413.             if pitem is None:

  1414.                 break

  1415. 

  1416.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1417. 

  1418.     @pyqtSlot()

  1419.     def slot_pluginsWet100(self):

  1420.         if not self.host.is_engine_running():

  1421.             return

  1422. 

  1423.         for pitem in self.fPluginList:

  1424.             if pitem is None:

  1425.                 break

  1426. 

  1427.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1428. 

  1429.     @pyqtSlot()

  1430.     def slot_pluginsBypass(self):

  1431.         if not self.host.is_engine_running():

  1432.             return

  1433. 

  1434.         for pitem in self.fPluginList:

  1435.             if pitem is None:

  1436.                 break

  1437. 

  1438.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1439. 

  1440.     @pyqtSlot()

  1441.     def slot_pluginsCenter(self):

  1442.         if not self.host.is_engine_running():

  1443.             return

  1444. 

  1445.         for pitem in self.fPluginList:

  1446.             if pitem is None:

  1447.                 break

  1448. 

  1449.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1450.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1451.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1452. 

  1453.     @pyqtSlot()

  1454.     def slot_pluginsCompact(self):

  1455.         for pitem in self.fPluginList:

  1456.             if pitem is None:

  1457.                 break

  1458.             pitem.compact()

  1459. 

  1460.     @pyqtSlot()

  1461.     def slot_pluginsExpand(self):

  1462.         for pitem in self.fPluginList:

  1463.             if pitem is None:

  1464.                 break

  1465.             pitem.expand()

  1466. 

  1467.     # --------------------------------------------------------------------------------------------------------

  1468.     # Plugins (host callbacks)

  1469. 

  1470.     @pyqtSlot(int, int, str)

  1471.     def slot_handlePluginAddedCallback(self, pluginId, pluginType, pluginName):

  1472.         if pluginId != self.fPluginCount:

  1473.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1474.             pitem = self.getPluginItem(pluginId)

  1475.             pitem.recreateWidget()

  1476.             return

  1477. 

  1478.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN])

  1479.         self.fPluginList.append(pitem)

  1480.         self.fPluginCount += 1

  1481. 

  1482.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1483. 

  1484.         if pluginType == PLUGIN_LV2:

  1485.             self.fHasLoadedLv2Plugins = True

  1486. 

  1487.     @pyqtSlot(int)

  1488.     def slot_handlePluginRemovedCallback(self, pluginId):

  1489.         if self.fWithCanvas:

  1490.             patchcanvas.handlePluginRemoved(pluginId)

  1491. 

  1492.         if pluginId in self.fSelectedPlugins:

  1493.             self.clearSideStuff()

  1494. 

  1495.         if self.fPluginCount == 0:

  1496.             return

  1497. 

  1498.         pitem = self.getPluginItem(pluginId)

  1499. 

  1500.         self.fPluginCount -= 1

  1501.         self.fPluginList.pop(pluginId)

  1502.         self.ui.listWidget.takeItem(pluginId)

  1503. 

  1504.         if pitem is not None:

  1505.             pitem.close()

  1506.             del pitem

  1507. 

  1508.         if self.fPluginCount == 0:

  1509.             self.ui.act_plugin_remove_all.setEnabled(False)

  1510.             if self.fCurrentlyRemovingAllPlugins:

  1511.                 self.fCurrentlyRemovingAllPlugins = False

  1512.                 self.projectLoadingFinished(False)

  1513.             return

  1514. 

  1515.         # push all plugins 1 slot back

  1516.         for i in range(pluginId, self.fPluginCount):

  1517.             pitem = self.fPluginList[i]

  1518.             pitem.setPluginId(i)

  1519. 

  1520.         self.ui.act_plugin_remove_all.setEnabled(True)

  1521. 

  1522.     # --------------------------------------------------------------------------------------------------------

  1523.     # Canvas

  1524. 

  1525.     def clearSideStuff(self):

  1526.         if self.fWithCanvas:

  1527.             self.scene.clearSelection()

  1528. 

  1529.         self.fSelectedPlugins = []

  1530. 

  1531.         self.ui.keyboard.allNotesOff(False)

  1532.         self.ui.scrollArea.setEnabled(False)

  1533. 

  1534.         self.fPeaksCleared = True

  1535.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1536.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1537.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1538.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1539. 

  1540.     def setupCanvas(self):

  1541.         pOptions = patchcanvas.options_t()

  1542.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1543.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1544.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1545.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1546.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1547.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1548. 

  1549.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1550.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1551.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1552.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1553.         else:

  1554.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1555. 

  1556.         pFeatures = patchcanvas.features_t()

  1557.         pFeatures.group_info   = False

  1558.         pFeatures.group_rename = False

  1559.         pFeatures.port_info    = False

  1560.         pFeatures.port_rename  = False

  1561.         pFeatures.handle_group_pos = False

  1562. 

  1563.         patchcanvas.setOptions(pOptions)

  1564.         patchcanvas.setFeatures(pFeatures)

  1565.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1566. 

  1567.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1568. 

  1569.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1570.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1571.             self.fCanvasHeight = int(tryCanvasSize[1])

  1572.         else:

  1573.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1574.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1575. 

  1576.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1577.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1578.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1579. 

  1580.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1581.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1582. 

  1583.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1584.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1585. 

  1586.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1587.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1588.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1589. 

  1590.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1591.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1592. 

  1593.         else:

  1594.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1595. 

  1596.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1597.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1598.         else:

  1599.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1600. 

  1601.     def updateCanvasInitialPos(self):

  1602.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1603.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1604.         patchcanvas.setInitialPos(x, y)

  1605. 

  1606.     def updateMiniCanvasLater(self):

  1607.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1608. 

  1609.     # --------------------------------------------------------------------------------------------------------

  1610.     # Canvas (menu actions)

  1611. 

  1612.     @pyqtSlot()

  1613.     def slot_canvasShowInternal(self):

  1614.         self.fExternalPatchbay = False

  1615.         self.ui.act_canvas_show_internal.blockSignals(True)

  1616.         self.ui.act_canvas_show_external.blockSignals(True)

  1617.         self.ui.act_canvas_show_internal.setChecked(True)

  1618.         self.ui.act_canvas_show_external.setChecked(False)

  1619.         self.ui.act_canvas_show_internal.blockSignals(False)

  1620.         self.ui.act_canvas_show_external.blockSignals(False)

  1621.         self.slot_canvasRefresh()

  1622. 

  1623.     @pyqtSlot()

  1624.     def slot_canvasShowExternal(self):

  1625.         self.fExternalPatchbay = True

  1626.         self.ui.act_canvas_show_internal.blockSignals(True)

  1627.         self.ui.act_canvas_show_external.blockSignals(True)

  1628.         self.ui.act_canvas_show_internal.setChecked(False)

  1629.         self.ui.act_canvas_show_external.setChecked(True)

  1630.         self.ui.act_canvas_show_internal.blockSignals(False)

  1631.         self.ui.act_canvas_show_external.blockSignals(False)

  1632.         self.slot_canvasRefresh()

  1633. 

  1634.     @pyqtSlot()

  1635.     def slot_canvasArrange(self):

  1636.         patchcanvas.arrange()

  1637. 

  1638.     @pyqtSlot()

  1639.     def slot_canvasRefresh(self):

  1640.         patchcanvas.clear()

  1641. 

  1642.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1643.             return

  1644. 

  1645.         if self.host.is_engine_running():

  1646.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1647. 

  1648.         self.updateMiniCanvasLater()

  1649. 

  1650.     @pyqtSlot()

  1651.     def slot_canvasZoomFit(self):

  1652.         self.scene.zoom_fit()

  1653. 

  1654.     @pyqtSlot()

  1655.     def slot_canvasZoomIn(self):

  1656.         self.scene.zoom_in()

  1657. 

  1658.     @pyqtSlot()

  1659.     def slot_canvasZoomOut(self):

  1660.         self.scene.zoom_out()

  1661. 

  1662.     @pyqtSlot()

  1663.     def slot_canvasZoomReset(self):

  1664.         self.scene.zoom_reset()

  1665. 

  1666.     def _canvasImageRender(self, zoom = 1.0):

  1667.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1668.         painter = QPainter(image)

  1669.         painter.save()

  1670.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1671.         self.scene.clearSelection()

  1672.         self.scene.render(painter)

  1673.         painter.restore()

  1674.         del painter

  1675.         return image

  1676. 

  1677.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1678.         iw.setFormat(imgFormat)

  1679.         iw.setCompression(-1)

  1680.         if QT_VERSION >= 0x50500:

  1681.             iw.setOptimizedWrite(True)

  1682.         iw.write(image)

  1683. 

  1684.     @pyqtSlot()

  1685.     def slot_canvasSaveImage(self):

  1686.         if self.fProjectFilename:

  1687.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1688.         else:

  1689.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1690. 

  1691.         fileDialog = QFileDialog(self)

  1692.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1693.         fileDialog.setDirectory(dir)

  1694.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1695.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1696.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1697.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1698.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1699. 

  1700.         ok = fileDialog.exec_()

  1701. 

  1702.         if not ok:

  1703.             return

  1704. 

  1705.         newPath = fileDialog.selectedFiles()

  1706. 

  1707.         if len(newPath) != 1:

  1708.             return

  1709. 

  1710.         newPath = newPath[0]

  1711. 

  1712.         if QT_VERSION >= 0x50900:

  1713.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1714.                 imgFormat = b"JPG"

  1715.             else:

  1716.                 imgFormat = b"PNG"

  1717.         else:

  1718.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1719.                 imgFormat = b"JPG"

  1720.             else:

  1721.                 imgFormat = b"PNG"

  1722. 

  1723.         sender = self.sender()

  1724.         if sender == self.ui.act_canvas_save_image_2x:

  1725.             zoom = 2.0

  1726.         elif sender == self.ui.act_canvas_save_image_4x:

  1727.             zoom = 4.0

  1728.         else:

  1729.             zoom = 1.0

  1730. 

  1731.         image = self._canvasImageRender(zoom)

  1732.         iw = QImageWriter(newPath)

  1733.         self._canvasImageWrite(iw, imgFormat, image)

  1734. 

  1735.     @pyqtSlot()

  1736.     def slot_canvasCopyToClipboard(self):

  1737.         buffer = QBuffer()

  1738.         buffer.open(QIODevice.WriteOnly)

  1739. 

  1740.         image = self._canvasImageRender()

  1741.         iw = QImageWriter(buffer, b"PNG")

  1742.         self._canvasImageWrite(iw, b"PNG", image)

  1743. 

  1744.         buffer.close()

  1745. 

  1746.         mimeData = QMimeData()

  1747.         mimeData.setData("image/png", buffer.buffer());

  1748. 

  1749.         QApplication.clipboard().setMimeData(mimeData)

  1750. 

  1751.     # --------------------------------------------------------------------------------------------------------

  1752.     # Canvas (canvas callbacks)

  1753. 

  1754.     @pyqtSlot()

  1755.     def slot_canvasSelectionChanged(self):

  1756.         self.updateMiniCanvasLater()

  1757. 

  1758.     @pyqtSlot(float)

  1759.     def slot_canvasScaleChanged(self, scale):

  1760.         self.ui.miniCanvasPreview.setViewScale(scale)

  1761. 

  1762.     @pyqtSlot(list)

  1763.     def slot_canvasPluginSelected(self, pluginList):

  1764.         self.ui.keyboard.allNotesOff(False)

  1765.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1766.         self.fSelectedPlugins = pluginList

  1767. 

  1768.     # --------------------------------------------------------------------------------------------------------

  1769.     # Canvas (host callbacks)

  1770. 

  1771.     @pyqtSlot(int, int, int, str)

  1772.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1773.         pcSplit = patchcanvas.SPLIT_UNDEF

  1774.         pcIcon  = patchcanvas.ICON_APPLICATION

  1775. 

  1776.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1777.             pcIcon = patchcanvas.ICON_PLUGIN

  1778.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1779.             pcIcon = patchcanvas.ICON_HARDWARE

  1780.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1781.             pass

  1782.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1783.             pcIcon = patchcanvas.ICON_DISTRHO

  1784.         elif clientIcon == PATCHBAY_ICON_FILE:

  1785.             pcIcon = patchcanvas.ICON_FILE

  1786. 

  1787.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1788. 

  1789.         self.updateMiniCanvasLater()

  1790. 

  1791.         if pluginId < 0:

  1792.             return

  1793.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1794.             print("Error mapping plugin to canvas client:", clientName)

  1795.             return

  1796. 

  1797.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1798.             hasCustomUI = False

  1799.             hasInlineDisplay = False

  1800.         else:

  1801.             hints = self.host.get_plugin_info(pluginId)['hints']

  1802.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1803.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1804. 

  1805.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1806. 

  1807.     @pyqtSlot(int)

  1808.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1809.         patchcanvas.removeGroup(clientId)

  1810.         self.updateMiniCanvasLater()

  1811. 

  1812.     @pyqtSlot(int, str)

  1813.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1814.         patchcanvas.renameGroup(clientId, newClientName)

  1815.         self.updateMiniCanvasLater()

  1816. 

  1817.     @pyqtSlot(int, int, int)

  1818.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1819.         pcIcon = patchcanvas.ICON_APPLICATION

  1820. 

  1821.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1822.             pcIcon = patchcanvas.ICON_PLUGIN

  1823.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1824.             pcIcon = patchcanvas.ICON_HARDWARE

  1825.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1826.             pass

  1827.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1828.             pcIcon = patchcanvas.ICON_DISTRHO

  1829.         elif clientIcon == PATCHBAY_ICON_FILE:

  1830.             pcIcon = patchcanvas.ICON_FILE

  1831. 

  1832.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1833.         self.updateMiniCanvasLater()

  1834. 

  1835.         if pluginId < 0:

  1836.             return

  1837.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1838.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1839.             return

  1840. 

  1841.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1842.             hasCustomUI = False

  1843.             hasInlineDisplay = False

  1844.         else:

  1845.             hints = self.host.get_plugin_info(pluginId)['hints']

  1846.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1847.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1848. 

  1849.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1850. 

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

  1852.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1853.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1854.             patchcanvas.splitGroup(clientId)

  1855.         else:

  1856.             patchcanvas.joinGroup(clientId)

  1857.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1858.         self.updateMiniCanvasLater()

  1859. 

  1860.     @pyqtSlot(int, int, int, int, str)

  1861.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1862.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1863.             portMode = patchcanvas.PORT_MODE_INPUT

  1864.         else:

  1865.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1866. 

  1867.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1868.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1869.             isAlternate = False

  1870.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1871.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1872.             isAlternate = False

  1873.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1874.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1875.             isAlternate = False

  1876.         else:

  1877.             portType    = patchcanvas.PORT_TYPE_NULL

  1878.             isAlternate = False

  1879. 

  1880.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1881.         self.updateMiniCanvasLater()

  1882. 

  1883.     @pyqtSlot(int, int)

  1884.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1885.         patchcanvas.removePort(groupId, portId)

  1886.         self.updateMiniCanvasLater()

  1887. 

  1888.     @pyqtSlot(int, int, int, int, str)

  1889.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1890.         patchcanvas.renamePort(groupId, portId, newPortName)

  1891.         self.updateMiniCanvasLater()

  1892. 

  1893.     @pyqtSlot(int, int, int, str)

  1894.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1895.         # TODO

  1896.         pass

  1897. 

  1898.     @pyqtSlot(int, int)

  1899.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1900.         # TODO

  1901.         pass

  1902. 

  1903.     @pyqtSlot(int, int, int, str)

  1904.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1905.         # TODO

  1906.         pass

  1907. 

  1908.     @pyqtSlot(int, int, int, int, int)

  1909.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1910.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1911.         self.updateMiniCanvasLater()

  1912. 

  1913.     @pyqtSlot(int, int, int)

  1914.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1915.         patchcanvas.disconnectPorts(connectionId)

  1916.         self.updateMiniCanvasLater()

  1917. 

  1918.     # --------------------------------------------------------------------------------------------------------

  1919.     # Settings

  1920. 

  1921.     def saveSettings(self):

  1922.         settings = QSafeSettings()

  1923. 

  1924.         settings.setValue("Geometry", self.saveGeometry())

  1925.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1926.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1927. 

  1928.         diskFolders = []

  1929. 

  1930.         for i in range(self.ui.cb_disk.count()):

  1931.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1932. 

  1933.         settings.setValue("DiskFolders", diskFolders)

  1934.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1935. 

  1936.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1937.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1938.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1939.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1940. 

  1941.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1942.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1943. 

  1944.         return settings

  1945. 

  1946.     def loadSettings(self, firstTime):

  1947.         settings = QSafeSettings()

  1948. 

  1949.         if firstTime:

  1950.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1951.             if not geometry.isNull():

  1952.                 self.restoreGeometry(geometry)

  1953. 

  1954.             showToolbar = settings.value("ShowToolbar", True, bool)

  1955.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1956.             self.ui.toolBar.blockSignals(True)

  1957.             self.ui.toolBar.setEnabled(showToolbar)

  1958.             self.ui.toolBar.setVisible(showToolbar)

  1959.             self.ui.toolBar.blockSignals(False)

  1960. 

  1961.             #if settings.contains("SplitterState"):

  1962.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1963.             #else:

  1964.                 #self.ui.splitter.setSizes([210, 99999])

  1965. 

  1966.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1967.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1968.             self.slot_showSidePanel(showSidePanel)

  1969. 

  1970.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1971. 

  1972.             self.ui.cb_disk.setItemData(0, HOME)

  1973. 

  1974.             for i in range(len(diskFolders)):

  1975.                 if i == 0: continue

  1976.                 folder = diskFolders[i]

  1977.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1978. 

  1979.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1980.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1981. 

  1982.             showMeters = settings.value("ShowMeters", True, bool)

  1983.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1984.             self.ui.peak_in.setVisible(showMeters)

  1985.             self.ui.peak_out.setVisible(showMeters)

  1986. 

  1987.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1988.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1989.             self.ui.scrollArea.setVisible(showKeyboard)

  1990. 

  1991.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1992.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1993. 

  1994.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1995. 

  1996.         # TODO - complete this

  1997.         oldSettings = self.fSavedSettings

  1998. 

  1999.         self.fSavedSettings = {

  2000.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  2001.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  2002.             CARLA_KEY_MAIN_CLASSIC_SKIN:        settings.value(CARLA_KEY_MAIN_CLASSIC_SKIN,        CARLA_DEFAULT_MAIN_CLASSIC_SKIN,        bool),

  2003.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  2004.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  2005.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  2006.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  2007.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  2008.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  2009.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  2010.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  2011.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  2012.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  2013.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  2014.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  2015.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  2016.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  2017.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  2018.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  2019.         }

  2020. 

  2021.         if not self.host.isControl:

  2022.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  2023.         else:

  2024.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  2025. 

  2026.         settings2 = QSafeSettings("falkTX", "Carla2")

  2027. 

  2028.         if self.host.experimental:

  2029.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  2030.             self.ui.act_plugin_add_jack.setVisible(visible)

  2031.         else:

  2032.             self.ui.act_plugin_add_jack.setVisible(False)

  2033. 

  2034.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  2035. 

  2036.         setEngineSettings(self.host)

  2037.         self.restartTimersIfNeeded()

  2038. 

  2039.         if oldSettings.get(CARLA_KEY_MAIN_CLASSIC_SKIN, None) not in (self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN], None):

  2040.             newSkin = "classic" if self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN] else None

  2041. 

  2042.             for pitem in self.fPluginList:

  2043.                 if pitem is None:

  2044.                     continue

  2045.                 pitem.recreateWidget(newSkin = newSkin)

  2046. 

  2047.         return settings

  2048. 

  2049.     # --------------------------------------------------------------------------------------------------------

  2050.     # Settings (helpers)

  2051. 

  2052.     def enableTransport(self, enabled):

  2053.         self.ui.group_transport_controls.setEnabled(enabled)

  2054.         self.ui.group_transport_settings.setEnabled(enabled)

  2055. 

  2056.     @pyqtSlot()

  2057.     def slot_restoreCanvasScrollbarValues(self):

  2058.         settings = QSafeSettings()

  2059.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  2060.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  2061.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2062.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2063. 

  2064.     # --------------------------------------------------------------------------------------------------------

  2065.     # Settings (menu actions)

  2066. 

  2067.     @pyqtSlot(bool)

  2068.     def slot_showSidePanel(self, yesNo):

  2069.         self.ui.dockWidget.setEnabled(yesNo)

  2070.         self.ui.dockWidget.setVisible(yesNo)

  2071. 

  2072.     @pyqtSlot(bool)

  2073.     def slot_showToolbar(self, yesNo):

  2074.         self.ui.toolBar.blockSignals(True)

  2075.         self.ui.toolBar.setEnabled(yesNo)

  2076.         self.ui.toolBar.setVisible(yesNo)

  2077.         self.ui.toolBar.blockSignals(False)

  2078. 

  2079.     @pyqtSlot(bool)

  2080.     def slot_showCanvasMeters(self, yesNo):

  2081.         self.ui.peak_in.setVisible(yesNo)

  2082.         self.ui.peak_out.setVisible(yesNo)

  2083.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2084. 

  2085.     @pyqtSlot(bool)

  2086.     def slot_showCanvasKeyboard(self, yesNo):

  2087.         self.ui.scrollArea.setVisible(yesNo)

  2088.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2089. 

  2090.     @pyqtSlot()

  2091.     def slot_configureCarla(self):

  2092.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2093.         if not dialog.exec_():

  2094.             return

  2095. 

  2096.         self.loadSettings(False)

  2097. 

  2098.         if self.fWithCanvas:

  2099.             patchcanvas.clear()

  2100.             self.setupCanvas()

  2101.             self.slot_miniCanvasCheckAll()

  2102. 

  2103.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2104.             pass

  2105.         elif self.host.is_engine_running():

  2106.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2107. 

  2108.     # --------------------------------------------------------------------------------------------------------

  2109.     # About (menu actions)

  2110. 

  2111.     @pyqtSlot()

  2112.     def slot_aboutCarla(self):

  2113.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2114. 

  2115.     @pyqtSlot()

  2116.     def slot_aboutJuce(self):

  2117.         gCarla.felib.createAndExecAboutJuceDialog(self.fParentOrSelf)

  2118. 

  2119.     @pyqtSlot()

  2120.     def slot_aboutQt(self):

  2121.         QApplication.instance().aboutQt()

  2122. 

  2123.     # --------------------------------------------------------------------------------------------------------

  2124.     # Disk (menu actions)

  2125. 

  2126.     @pyqtSlot(int)

  2127.     def slot_diskFolderChanged(self, index):

  2128.         if index < 0:

  2129.             return

  2130.         elif index == 0:

  2131.             filename = HOME

  2132.             self.ui.b_disk_remove.setEnabled(False)

  2133.         else:

  2134.             filename = self.ui.cb_disk.itemData(index)

  2135.             self.ui.b_disk_remove.setEnabled(True)

  2136. 

  2137.         self.fDirModel.setRootPath(filename)

  2138.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2139. 

  2140.     @pyqtSlot()

  2141.     def slot_diskFolderAdd(self):

  2142.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2143. 

  2144.         if newPath:

  2145.             if newPath[-1] == os.sep:

  2146.                 newPath = newPath[:-1]

  2147.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2148.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2149.             self.ui.b_disk_remove.setEnabled(True)

  2150. 

  2151.     @pyqtSlot()

  2152.     def slot_diskFolderRemove(self):

  2153.         index = self.ui.cb_disk.currentIndex()

  2154. 

  2155.         if index <= 0:

  2156.             return

  2157. 

  2158.         self.ui.cb_disk.removeItem(index)

  2159. 

  2160.         if self.ui.cb_disk.currentIndex() == 0:

  2161.             self.ui.b_disk_remove.setEnabled(False)

  2162. 

  2163.     @pyqtSlot(QModelIndex)

  2164.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2165.         filename = self.fDirModel.filePath(modelIndex)

  2166. 

  2167.         if not self.ui.listWidget.isDragUrlValid(filename):

  2168.             return

  2169. 

  2170.         if not self.host.load_file(filename):

  2171.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2172.                              self.tr("Failed to load file"),

  2173.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2174.             return

  2175. 

  2176.         if filename.endswith(".carxp"):

  2177.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2178. 

  2179.     # --------------------------------------------------------------------------------------------------------

  2180.     # Transport

  2181. 

  2182.     def refreshTransport(self, forced = False):

  2183.         if not self.ui.l_transport_time.isVisible():

  2184.             return

  2185.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2186.             return

  2187. 

  2188.         timeInfo = self.host.get_transport_info()

  2189.         playing  = timeInfo['playing']

  2190.         frame    = timeInfo['frame']

  2191.         bpm      = timeInfo['bpm']

  2192. 

  2193.         if playing != self.fLastTransportState or forced:

  2194.             if playing:

  2195.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2196.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2197.                 else:

  2198.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2199.                 self.ui.b_transport_play.setChecked(True)

  2200.                 self.ui.b_transport_play.setIcon(icon)

  2201.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2202.             else:

  2203.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2204.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2205.                 else:

  2206.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2207.                 self.ui.b_transport_play.setChecked(False)

  2208.                 self.ui.b_transport_play.setIcon(icon)

  2209.                 #self.ui.b_play.setText(self.tr("&Play"))

  2210. 

  2211.             self.fLastTransportState = playing

  2212. 

  2213.         if frame != self.fLastTransportFrame or forced:

  2214.             self.fLastTransportFrame = frame

  2215. 

  2216.             time = frame / self.fSampleRate

  2217.             secs =  time % 60

  2218.             mins = (time / 60) % 60

  2219.             hrs  = (time / 3600) % 60

  2220.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2221. 

  2222.             frame1 =  frame % 1000

  2223.             frame2 = (frame / 1000) % 1000

  2224.             frame3 = (frame / 1000000) % 1000

  2225.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2226. 

  2227.             bar  = timeInfo['bar']

  2228.             beat = timeInfo['beat']

  2229.             tick = timeInfo['tick']

  2230.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2231. 

  2232.         if bpm != self.fLastTransportBPM or forced:

  2233.             self.fLastTransportBPM = bpm

  2234. 

  2235.             if bpm > 0.0:

  2236.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2237.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2238.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2239.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2240.             else:

  2241.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2242. 

  2243.     # --------------------------------------------------------------------------------------------------------

  2244.     # Transport (menu actions)

  2245. 

  2246.     @pyqtSlot(bool)

  2247.     def slot_transportPlayPause(self, toggled):

  2248.         if self.host.isPlugin or not self.host.is_engine_running():

  2249.             return

  2250. 

  2251.         if toggled:

  2252.             self.host.transport_play()

  2253.         else:

  2254.             self.host.transport_pause()

  2255. 

  2256.         self.refreshTransport()

  2257. 

  2258.     @pyqtSlot()

  2259.     def slot_transportStop(self):

  2260.         if self.host.isPlugin or not self.host.is_engine_running():

  2261.             return

  2262. 

  2263.         self.host.transport_pause()

  2264.         self.host.transport_relocate(0)

  2265. 

  2266.         self.refreshTransport()

  2267. 

  2268.     @pyqtSlot()

  2269.     def slot_transportBackwards(self):

  2270.         if self.host.isPlugin or not self.host.is_engine_running():

  2271.             return

  2272. 

  2273.         newFrame = self.host.get_current_transport_frame() - 100000

  2274. 

  2275.         if newFrame < 0:

  2276.             newFrame = 0

  2277. 

  2278.         self.host.transport_relocate(newFrame)

  2279. 

  2280.     @pyqtSlot(float)

  2281.     def slot_transportBpmChanged(self, newValue):

  2282.         self.host.transport_bpm(newValue)

  2283. 

  2284.     @pyqtSlot()

  2285.     def slot_transportForwards(self):

  2286.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2287.             return

  2288. 

  2289.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2290.         self.host.transport_relocate(newFrame)

  2291. 

  2292.     @pyqtSlot(bool)

  2293.     def slot_transportJackEnabled(self, clicked):

  2294.         if not self.host.is_engine_running():

  2295.             return

  2296.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2297.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2298.                                     self.host.transportMode,

  2299.                                     self.host.transportExtra)

  2300. 

  2301.     @pyqtSlot(bool)

  2302.     def slot_transportLinkEnabled(self, clicked):

  2303.         if not self.host.is_engine_running():

  2304.             return

  2305.         extra = ":link:" if clicked else ""

  2306.         self.host.transportExtra = extra

  2307.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2308.                                     self.host.transportMode,

  2309.                                     self.host.transportExtra)

  2310. 

  2311.     # --------------------------------------------------------------------------------------------------------

  2312.     # Other

  2313. 

  2314.     @pyqtSlot(bool)

  2315.     def slot_xrunClear(self):

  2316.         self.host.clear_engine_xruns()

  2317. 

  2318.     # --------------------------------------------------------------------------------------------------------

  2319.     # Canvas scrollbars

  2320. 

  2321.     @pyqtSlot(int)

  2322.     def slot_horizontalScrollBarChanged(self, value):

  2323.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2324.         if maximum == 0:

  2325.             xp = 0

  2326.         else:

  2327.             xp = float(value) / maximum

  2328.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2329.         self.updateCanvasInitialPos()

  2330. 

  2331.     @pyqtSlot(int)

  2332.     def slot_verticalScrollBarChanged(self, value):

  2333.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2334.         if maximum == 0:

  2335.             yp = 0

  2336.         else:

  2337.             yp = float(value) / maximum

  2338.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2339.         self.updateCanvasInitialPos()

  2340. 

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

  2342.     # Canvas keyboard

  2343. 

  2344.     @pyqtSlot(int)

  2345.     def slot_noteOn(self, note):

  2346.         if self.fPluginCount == 0:

  2347.             return

  2348. 

  2349.         for pluginId in self.fSelectedPlugins:

  2350.             self.host.send_midi_note(pluginId, 0, note, 100)

  2351. 

  2352.             pedit = self.getPluginEditDialog(pluginId)

  2353.             pedit.noteOn(0, note, 100)

  2354. 

  2355.     @pyqtSlot(int)

  2356.     def slot_noteOff(self, note):

  2357.         if self.fPluginCount == 0:

  2358.             return

  2359. 

  2360.         for pluginId in self.fSelectedPlugins:

  2361.             self.host.send_midi_note(pluginId, 0, note, 0)

  2362. 

  2363.             pedit = self.getPluginEditDialog(pluginId)

  2364.             pedit.noteOff(0, note)

  2365. 

  2366.     # --------------------------------------------------------------------------------------------------------

  2367.     # Canvas keyboard (host callbacks)

  2368. 

  2369.     @pyqtSlot(int, int, int, int)

  2370.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2371.         if pluginId in self.fSelectedPlugins:

  2372.             self.ui.keyboard.sendNoteOn(note, False)

  2373. 

  2374.     @pyqtSlot(int, int, int)

  2375.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2376.         if pluginId in self.fSelectedPlugins:

  2377.             self.ui.keyboard.sendNoteOff(note, False)

  2378. 

  2379.     # --------------------------------------------------------------------------------------------------------

  2380. 

  2381.     @pyqtSlot(int)

  2382.     def slot_handleUpdateCallback(self, pluginId):

  2383.         pitem = self.getPluginItem(pluginId)

  2384. 

  2385.         if pitem is None:

  2386.             return

  2387. 

  2388.         wasCompacted = pitem.isCompacted()

  2389.         isCompacted  = wasCompacted

  2390. 

  2391.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2392.         if not check:

  2393.             return

  2394.         isCompacted = bool(check == "true")

  2395. 

  2396.         if wasCompacted == isCompacted:

  2397.             return

  2398. 

  2399.         pitem.recreateWidget(True)

  2400. 

  2401.     # --------------------------------------------------------------------------------------------------------

  2402.     # MiniCanvas stuff

  2403. 

  2404.     @pyqtSlot()

  2405.     def slot_miniCanvasCheckAll(self):

  2406.         self.slot_miniCanvasCheckSize()

  2407.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2408.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2409. 

  2410.     @pyqtSlot()

  2411.     def slot_miniCanvasCheckSize(self):

  2412.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2413.             return

  2414. 

  2415.         currentIndex = self.ui.tabWidget.currentIndex()

  2416. 

  2417.         if currentIndex == 1:

  2418.             width  = self.ui.graphicsView.width()

  2419.             height = self.ui.graphicsView.height()

  2420.         else:

  2421.             self.ui.tabWidget.blockSignals(True)

  2422.             self.ui.tabWidget.setCurrentIndex(1)

  2423.             width  = self.ui.graphicsView.width()

  2424.             height = self.ui.graphicsView.height()

  2425.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2426.             self.ui.tabWidget.blockSignals(False)

  2427. 

  2428.         self.scene.updateLimits()

  2429. 

  2430.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2431. 

  2432.     @pyqtSlot(float, float)

  2433.     def slot_miniCanvasMoved(self, xp, yp):

  2434.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2435.         vsb = self.ui.graphicsView.verticalScrollBar()

  2436.         hsb.setValue(xp * hsb.maximum())

  2437.         vsb.setValue(yp * vsb.maximum())

  2438.         self.updateCanvasInitialPos()

  2439. 

  2440.     # --------------------------------------------------------------------------------------------------------

  2441.     # Logs autoscroll, save and clear

  2442. 

  2443.     @pyqtSlot(int)

  2444.     def slot_toggleLogAutoscroll(self, checkState):

  2445.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2446.         if self.autoscrollOnNewLog:

  2447.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2448. 

  2449.     @pyqtSlot(int)

  2450.     def slot_logSliderMoved(self, slider_pos):

  2451.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2452.             self.lastLogSliderPos = slider_pos

  2453.         else:

  2454.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2455. 

  2456.     @pyqtSlot()

  2457.     def slot_logButtonsState(self, enabled=True):

  2458.         self.ui.logs_clear.setEnabled(enabled)

  2459.         self.ui.logs_save.setEnabled(enabled)

  2460. 

  2461.     @pyqtSlot()

  2462.     def slot_logSave(self):

  2463.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2464.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2465. 

  2466.         if not filename:

  2467.             return

  2468. 

  2469.         try:

  2470.             with open(filename, "w") as logfile:

  2471.                 logfile.write(self.ui.text_logs.toPlainText())

  2472.                 logfile.close()

  2473.         except:

  2474.             return

  2475. 

  2476.     @pyqtSlot()

  2477.     def slot_logClear(self):

  2478.         self.ui.text_logs.clear()

  2479.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2480.         self.slot_logButtonsState(False)

  2481. 

  2482.     # --------------------------------------------------------------------------------------------------------

  2483.     # Timers

  2484. 

  2485.     def startTimers(self):

  2486.         if self.fIdleTimerFast == 0:

  2487.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2488. 

  2489.         if self.fIdleTimerSlow == 0:

  2490.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2491. 

  2492.     def restartTimersIfNeeded(self):

  2493.         if self.fIdleTimerFast != 0:

  2494.             self.killTimer(self.fIdleTimerFast)

  2495.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2496. 

  2497.         if self.fIdleTimerSlow != 0:

  2498.             self.killTimer(self.fIdleTimerSlow)

  2499.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2500. 

  2501.     def killTimers(self):

  2502.         if self.fIdleTimerFast != 0:

  2503.             self.killTimer(self.fIdleTimerFast)

  2504.             self.fIdleTimerFast = 0

  2505. 

  2506.         if self.fIdleTimerSlow != 0:

  2507.             self.killTimer(self.fIdleTimerSlow)

  2508.             self.fIdleTimerSlow = 0

  2509. 

  2510.     # --------------------------------------------------------------------------------------------------------

  2511.     # Misc

  2512. 

  2513.     @pyqtSlot(bool)

  2514.     def slot_toolbarVisibilityChanged(self, visible):

  2515.         self.ui.toolBar.blockSignals(True)

  2516.         self.ui.toolBar.setEnabled(visible)

  2517.         self.ui.toolBar.blockSignals(False)

  2518.         self.ui.act_settings_show_toolbar.setChecked(visible)

  2519. 

  2520.     @pyqtSlot(int)

  2521.     def slot_tabChanged(self, index):

  2522.         if index != 1:

  2523.             return

  2524. 

  2525.         self.ui.graphicsView.setFocus()

  2526. 

  2527.     @pyqtSlot(int)

  2528.     def slot_handleReloadAllCallback(self, pluginId):

  2529.         if pluginId >= self.fPluginCount:

  2530.             return

  2531. 

  2532.         pitem = self.fPluginList[pluginId]

  2533.         if pitem is None:

  2534.             return

  2535. 

  2536.         pitem.recreateWidget()

  2537. 

  2538.     # --------------------------------------------------------------------------------------------------------

  2539. 

  2540.     @pyqtSlot(int, int, str)

  2541.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2542.         if opcode == NSM_CALLBACK_INIT:

  2543.             return

  2544. 

  2545.         # Error

  2546.         elif opcode == NSM_CALLBACK_ERROR:

  2547.             pass

  2548. 

  2549.         # Reply

  2550.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2551.             self.fFirstEngineInit    = False

  2552.             self.fSessionManagerName = valueStr

  2553.             self.setProperWindowTitle()

  2554. 

  2555.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2556.             if (valueInt & (1 << 1)) == 0x0:

  2557.                 self.fWindowCloseHideGui = False

  2558.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2559.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2560.                 self.show()

  2561. 

  2562.         # Open

  2563.         elif opcode == NSM_CALLBACK_OPEN:

  2564.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2565.             self.setProperWindowTitle()

  2566. 

  2567.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2568.             self.slot_engineStop(True)

  2569.             return

  2570. 

  2571.         # Save

  2572.         elif opcode == NSM_CALLBACK_SAVE:

  2573.             self.saveProjectNow()

  2574. 

  2575.         # Session is Loaded

  2576.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2577.             pass

  2578. 

  2579.         # Show Optional Gui

  2580.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2581.             self.show()

  2582. 

  2583.         # Hide Optional Gui

  2584.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2585.             self.hideForNSM()

  2586. 

  2587.         # Set client name

  2588.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2589.             self.fClientName = valueStr

  2590.             return

  2591. 

  2592.         self.host.nsm_ready(opcode)

  2593. 

  2594.     # --------------------------------------------------------------------------------------------------------

  2595. 

  2596.     def fixLogText(self, text):

  2597.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2598. 

  2599.     @pyqtSlot(int, int, int, int, float, str)

  2600.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2601.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2602. 

  2603.     @pyqtSlot(str)

  2604.     def slot_handleInfoCallback(self, info):

  2605.         QMessageBox.information(self, "Information", info)

  2606. 

  2607.     @pyqtSlot(str)

  2608.     def slot_handleErrorCallback(self, error):

  2609.         QMessageBox.critical(self, "Error", error)

  2610. 

  2611.     @pyqtSlot()

  2612.     def slot_handleQuitCallback(self):

  2613.         self.fIsProjectLoading = False

  2614.         self.killTimers()

  2615.         self.removeAllPlugins()

  2616.         self.projectLoadingFinished(False)

  2617. 

  2618.     @pyqtSlot(int)

  2619.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2620.         # FIXME

  2621.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2622.             patchcanvas.redrawPluginGroup(pluginId)

  2623. 

  2624.     # --------------------------------------------------------------------------------------------------------

  2625. 

  2626.     @pyqtSlot()

  2627.     def slot_handleSIGUSR1(self):

  2628.         print("Got SIGUSR1 -> Saving project now")

  2629.         self.slot_fileSave()

  2630. 

  2631.     @pyqtSlot()

  2632.     def slot_handleSIGTERM(self):

  2633.         print("Got SIGTERM -> Closing now")

  2634.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2635.         self.close()

  2636. 

  2637.     # --------------------------------------------------------------------------------------------------------

  2638.     # Internal stuff

  2639. 

  2640.     def getExtraPtr(self, plugin):

  2641.         ptype = plugin['type']

  2642. 

  2643.         if ptype == PLUGIN_LADSPA:

  2644.             uniqueId = plugin['uniqueId']

  2645. 

  2646.             self.maybeLoadRDFs()

  2647. 

  2648.             for rdfItem in self.fLadspaRdfList:

  2649.                 if rdfItem.UniqueID == uniqueId:

  2650.                     return pointer(rdfItem)

  2651. 

  2652.         elif ptype == PLUGIN_SF2:

  2653.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2654.                 return self._true

  2655. 

  2656.         return None

  2657. 

  2658.     def maybeLoadRDFs(self):

  2659.         if not self.fLadspaRdfNeedsUpdate:

  2660.             return

  2661. 

  2662.         self.fLadspaRdfNeedsUpdate = False

  2663.         self.fLadspaRdfList = []

  2664. 

  2665.         if not haveLRDF:

  2666.             return

  2667. 

  2668.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2669.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2670. 

  2671.         if os.path.exists(frLadspaFile):

  2672.             frLadspa = open(frLadspaFile, 'r')

  2673. 

  2674.             try:

  2675.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2676.             except:

  2677.                 pass

  2678. 

  2679.             frLadspa.close()

  2680. 

  2681.     # --------------------------------------------------------------------------------------------------------

  2682. 

  2683.     def getPluginCount(self):

  2684.         return self.fPluginCount

  2685. 

  2686.     def getPluginItem(self, pluginId):

  2687.         if pluginId >= self.fPluginCount:

  2688.             return None

  2689. 

  2690.         pitem = self.fPluginList[pluginId]

  2691.         if pitem is None:

  2692.             return None

  2693.         #if False:

  2694.             #return CarlaRackItem(self, 0, False)

  2695. 

  2696.         return pitem

  2697. 

  2698.     def getPluginEditDialog(self, pluginId):

  2699.         if pluginId >= self.fPluginCount:

  2700.             return None

  2701. 

  2702.         pitem = self.fPluginList[pluginId]

  2703.         if pitem is None:

  2704.             return None

  2705.         if False:

  2706.             return PluginEdit(self, self.host, 0)

  2707. 

  2708.         return pitem.getEditDialog()

  2709. 

  2710.     def getPluginSlotWidget(self, pluginId):

  2711.         if pluginId >= self.fPluginCount:

  2712.             return None

  2713. 

  2714.         pitem = self.fPluginList[pluginId]

  2715.         if pitem is None:

  2716.             return None

  2717.         #if False:

  2718.             #return AbstractPluginSlot()

  2719. 

  2720.         return pitem.getWidget()

  2721. 

  2722.     # --------------------------------------------------------------------------------------------------------

  2723. 

  2724.     def waitForPendingEvents(self):

  2725.         pass

  2726. 

  2727.     # --------------------------------------------------------------------------------------------------------

  2728.     # show/hide event

  2729. 

  2730.     def showEvent(self, event):

  2731.         self.getAndRefreshRuntimeInfo()

  2732.         self.refreshTransport(True)

  2733.         QMainWindow.showEvent(self, event)

  2734. 

  2735.         if QT_VERSION >= 0x50600:

  2736.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2737.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2738. 

  2739.         # set our gui as parent for all plugins UIs

  2740.         if self.host.manageUIs and not self.host.isControl:

  2741.             if MACOS:

  2742.                 nsViewPtr = int(self.winId())

  2743.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2744.             else:

  2745.                 winIdStr = "%x" % int(self.winId())

  2746.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2747. 

  2748.     def hideEvent(self, event):

  2749.         # disable parent

  2750.         if not self.host.isControl:

  2751.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2752. 

  2753.         QMainWindow.hideEvent(self, event)

  2754. 

  2755.     # --------------------------------------------------------------------------------------------------------

  2756.     # resize event

  2757. 

  2758.     def resizeEvent(self, event):

  2759.         QMainWindow.resizeEvent(self, event)

  2760. 

  2761.         if self.fWithCanvas:

  2762.             self.slot_miniCanvasCheckSize()

  2763. 

  2764.     # --------------------------------------------------------------------------------------------------------

  2765.     # timer event

  2766. 

  2767.     def refreshRuntimeInfo(self, load, xruns):

  2768.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2769.         txt2 = "" if (xruns == 1) else "s"

  2770.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2771.         self.ui.pb_dsp_load.setValue(int(load))

  2772. 

  2773.     def getAndRefreshRuntimeInfo(self):

  2774.         if not self.ui.pb_dsp_load.isVisible():

  2775.             return

  2776.         if not self.host.is_engine_running():

  2777.             return

  2778.         info = self.host.get_runtime_engine_info()

  2779.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2780. 

  2781.     def idleFast(self):

  2782.         self.host.engine_idle()

  2783.         self.refreshTransport()

  2784. 

  2785.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2786.             return

  2787. 

  2788.         for pitem in self.fPluginList:

  2789.             if pitem is None:

  2790.                 break

  2791. 

  2792.             pitem.getWidget().idleFast()

  2793. 

  2794.         for pluginId in self.fSelectedPlugins:

  2795.             self.fPeaksCleared = False

  2796.             if self.ui.peak_in.isVisible():

  2797.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2798.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2799.             if self.ui.peak_out.isVisible():

  2800.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2801.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2802.             return

  2803. 

  2804.         if self.fPeaksCleared:

  2805.             return

  2806. 

  2807.         self.fPeaksCleared = True

  2808.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2809.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2810.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2811.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2812. 

  2813.     def idleSlow(self):

  2814.         self.getAndRefreshRuntimeInfo()

  2815. 

  2816.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2817.             return

  2818. 

  2819.         for pitem in self.fPluginList:

  2820.             if pitem is None:

  2821.                 break

  2822. 

  2823.             pitem.getWidget().idleSlow()

  2824. 

  2825.     def timerEvent(self, event):

  2826.         if event.timerId() == self.fIdleTimerFast:

  2827.             self.idleFast()

  2828. 

  2829.         elif event.timerId() == self.fIdleTimerSlow:

  2830.             self.idleSlow()

  2831. 

  2832.         QMainWindow.timerEvent(self, event)

  2833. 

  2834.     # --------------------------------------------------------------------------------------------------------

  2835.     # color/style change event

  2836. 

  2837.     def changeEvent(self, event):

  2838.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2839.             self.updateStyle()

  2840.         QMainWindow.changeEvent(self, event)

  2841. 

  2842.     def updateStyle(self):

  2843.         # Rack padding images setup

  2844.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2845.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2846. 

  2847.         min_value = 0.07

  2848. 

  2849.         if PYQT_VERSION >= 0x50600:

  2850.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2851.         else:

  2852.             value_fix = 1.5

  2853. 

  2854.         rack_pal = self.ui.rack.palette()

  2855.         bg_color = rack_pal.window().color()

  2856.         fg_color = rack_pal.text().color()

  2857.         bg_value = 1.0 - bg_color.blackF()

  2858.         if bg_value != 0.0 and bg_value < min_value:

  2859.             pad_color = bg_color.lighter(int(100*min_value/bg_value*value_fix))

  2860.         else:

  2861.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2862. 

  2863.         painter = QPainter()

  2864.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2865. 

  2866.         painter.begin(rack_imgL)

  2867.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2868.         painter.setBrush(pad_color)

  2869.         painter.drawRect(fillRect)

  2870.         painter.end()

  2871.         rack_pixmapL = QPixmap(rack_imgL)

  2872.         self.imgL_palette = QPalette()

  2873.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2874.         self.ui.pad_left.setPalette(self.imgL_palette)

  2875.         self.ui.pad_left.setAutoFillBackground(True)

  2876. 

  2877.         painter.begin(rack_imgR)

  2878.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2879.         painter.setBrush(pad_color)

  2880.         painter.drawRect(fillRect)

  2881.         painter.end()

  2882.         rack_pixmapR = QPixmap(rack_imgR)

  2883.         self.imgR_palette = QPalette()

  2884.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2885.         self.ui.pad_right.setPalette(self.imgR_palette)

  2886.         self.ui.pad_right.setAutoFillBackground(True)

  2887. 

  2888.         # qt's rgba is actually argb, so convert that

  2889.         bg_color_value = bg_color.rgba()

  2890.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2891. 

  2892.         fg_color_value = fg_color.rgba()

  2893.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2894. 

  2895.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2896.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2897. 

  2898.     # --------------------------------------------------------------------------------------------------------

  2899.     # paint event

  2900. 

  2901.     #def paintEvent(self, event):

  2902.         #QMainWindow.paintEvent(self, event)

  2903. 

  2904.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2905.             #return

  2906. 

  2907.         #painter = QPainter(self)

  2908.         #painter.setBrush(QColor(36, 36, 36))

  2909.         #painter.setPen(QColor(62, 62, 62))

  2910.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2911. 

  2912.     # --------------------------------------------------------------------------------------------------------

  2913.     # close event

  2914. 

  2915.     def shouldIgnoreClose(self):

  2916.         if self.host.isControl or self.host.isPlugin:

  2917.             return False

  2918.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2919.             return False

  2920.         if self.fWindowCloseHideGui:

  2921.             return False

  2922.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2923.             return QMessageBox.question(self, self.tr("Quit"),

  2924.                                               self.tr("Are you sure you want to quit Carla?"),

  2925.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2926.         return False

  2927. 

  2928.     def closeEvent(self, event):

  2929.         if self.shouldIgnoreClose():

  2930.             event.ignore()

  2931.             return

  2932. 

  2933.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2934.             self.hideForNSM()

  2935.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2936.             return

  2937. 

  2938.         patchcanvas.handleAllPluginsRemoved()

  2939. 

  2940.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2941.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2942.             self.fMacClosingHelper = False

  2943.             event.ignore()

  2944. 

  2945.             for i in reversed(range(self.fPluginCount)):

  2946.                 self.host.show_custom_ui(i, False)

  2947. 

  2948.             QTimer.singleShot(100, self.close)

  2949.             return

  2950. 

  2951.         self.killTimers()

  2952.         self.saveSettings()

  2953. 

  2954.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2955.             if not self.slot_engineStop(True):

  2956.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2957.                 event.ignore()

  2958.                 return

  2959. 

  2960.         QMainWindow.closeEvent(self, event)

  2961. 

  2962.         # if we reach this point, fully close ourselves

  2963.         gCarla.gui = None

  2964.         QApplication.instance().quit()

  2965. 

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

  2967. # Canvas callback

  2968. 

  2969. def canvasCallback(action, value1, value2, valueStr):

  2970.     host = gCarla.gui.host

  2971. 

  2972.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2973.         return

  2974. 

  2975.     if action == patchcanvas.ACTION_GROUP_INFO:

  2976.         pass

  2977. 

  2978.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2979.         pass

  2980. 

  2981.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2982.         groupId = value1

  2983.         patchcanvas.splitGroup(groupId)

  2984.         gCarla.gui.updateMiniCanvasLater()

  2985. 

  2986.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2987.         groupId = value1

  2988.         patchcanvas.joinGroup(groupId)

  2989.         gCarla.gui.updateMiniCanvasLater()

  2990. 

  2991.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2992.         if gCarla.gui.fIsProjectLoading:

  2993.             return

  2994.         if not host.is_engine_running():

  2995.             return

  2996.         groupId = value1

  2997.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2998.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2999.         gCarla.gui.updateMiniCanvasLater()

  3000. 

  3001.     elif action == patchcanvas.ACTION_PORT_INFO:

  3002.         pass

  3003. 

  3004.     elif action == patchcanvas.ACTION_PORT_RENAME:

  3005.         pass

  3006. 

  3007.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  3008.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  3009. 

  3010.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  3011.             print("Connection failed:", host.get_last_error())

  3012. 

  3013.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  3014.         connectionId = value1

  3015. 

  3016.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  3017.             print("Disconnect failed:", host.get_last_error())

  3018. 

  3019.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  3020.         pluginId = value1

  3021. 

  3022.         if not host.clone_plugin(pluginId):

  3023.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3024.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3025. 

  3026.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  3027.         pluginId = value1

  3028.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3029. 

  3030.         if pwidget is not None:

  3031.             pwidget.showEditDialog()

  3032. 

  3033.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  3034.         pluginId = value1

  3035.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3036. 

  3037.         if pwidget is not None:

  3038.             pwidget.showRenameDialog()

  3039. 

  3040.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  3041.         pluginId = value1

  3042.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3043. 

  3044.         if pwidget is not None:

  3045.             pwidget.showReplaceDialog()

  3046. 

  3047.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  3048.         pluginId = value1

  3049. 

  3050.         if not host.remove_plugin(pluginId):

  3051.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3052.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3053. 

  3054.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  3055.         pluginId = value1

  3056.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3057. 

  3058.         if pwidget is not None:

  3059.             pwidget.showCustomUI()

  3060. 

  3061.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  3062.         gCarla.gui.slot_showPluginActionsMenu()

  3063. 

  3064.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  3065.         if gCarla.gui.fIsProjectLoading:

  3066.             return

  3067.         if not host.is_engine_running():

  3068.             return

  3069.         pluginId = value1

  3070.         width, height = [int(v) for v in valueStr.split(":")]

  3071.         return host.render_inline_display(pluginId, width, height)

  3072. 

  3073. # ------------------------------------------------------------------------------------------------------------

  3074. # Engine callback

  3075. 

  3076. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3077.     # kdevelop likes this :)

  3078.     if False: host = CarlaHostNull()

  3079. 

  3080.     valueStr = charPtrToString(valueStr)

  3081. 

  3082.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3083.         host.processMode   = value1

  3084.         host.transportMode = value2

  3085.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3086.         host.processMode   = value1

  3087.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3088.         host.transportMode  = value1

  3089.         host.transportExtra = valueStr

  3090. 

  3091.     if action == ENGINE_CALLBACK_DEBUG:

  3092.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3093.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3094.         host.PluginAddedCallback.emit(pluginId, value1, valueStr)

  3095.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3096.         host.PluginRemovedCallback.emit(pluginId)

  3097.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3098.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3099.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3100.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3101.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3102.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3103.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3104.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3105.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3106.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3107.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3108.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3109.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3110.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3111.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3112.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3113.         host.ProgramChangedCallback.emit(pluginId, value1)

  3114.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3115.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3116.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3117.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3118.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3119.         host.UiStateChangedCallback.emit(pluginId, value1)

  3120.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3121.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3122.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3123.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3124.     elif action == ENGINE_CALLBACK_UPDATE:

  3125.         host.UpdateCallback.emit(pluginId)

  3126.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3127.         host.ReloadInfoCallback.emit(pluginId)

  3128.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3129.         host.ReloadParametersCallback.emit(pluginId)

  3130.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3131.         host.ReloadProgramsCallback.emit(pluginId)

  3132.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3133.         host.ReloadAllCallback.emit(pluginId)

  3134.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3135.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3136.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3137.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3138.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3139.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3140.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3141.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3142.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3143.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3144.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3145.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3146.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3147.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3148.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3149.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3150.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3151.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3152.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3153.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3154.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3155.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3156.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3157.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3158.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3159.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3160.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3161.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3162.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3163.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3164.         host.EngineStoppedCallback.emit()

  3165.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3166.         host.ProcessModeChangedCallback.emit(value1)

  3167.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3168.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3169.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3170.         host.BufferSizeChangedCallback.emit(value1)

  3171.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3172.         host.SampleRateChangedCallback.emit(valuef)

  3173.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3174.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3175.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3176.         host.ProjectLoadFinishedCallback.emit()

  3177.     elif action == ENGINE_CALLBACK_NSM:

  3178.         host.NSMCallback.emit(value1, value2, valueStr)

  3179.     elif action == ENGINE_CALLBACK_IDLE:

  3180.         QApplication.processEvents()

  3181.     elif action == ENGINE_CALLBACK_INFO:

  3182.         host.InfoCallback.emit(valueStr)

  3183.     elif action == ENGINE_CALLBACK_ERROR:

  3184.         host.ErrorCallback.emit(valueStr)

  3185.     elif action == ENGINE_CALLBACK_QUIT:

  3186.         host.QuitCallback.emit()

  3187.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3188.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3189.     else:

  3190.         print("unhandled action", action)

  3191. 

  3192. # ------------------------------------------------------------------------------------------------------------

  3193. # File callback

  3194. 

  3195. def fileCallback(ptr, action, isDir, title, filter):

  3196.     title  = charPtrToString(title)

  3197.     filter = charPtrToString(filter)

  3198. 

  3199.     if action == FILE_CALLBACK_OPEN:

  3200.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3201.     elif action == FILE_CALLBACK_SAVE:

  3202.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3203.     else:

  3204.         ret, ok = ("", "")

  3205. 

  3206.     # FIXME use ok value, test if it works as expected

  3207.     if not ret:

  3208.         return None

  3209. 

  3210.     # FIXME

  3211.     global fileRet

  3212.     fileRet = c_char_p(ret.encode("utf-8"))

  3213.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3214.     return retval.contents.value

  3215. 

  3216. # ------------------------------------------------------------------------------------------------------------

  3217. # Init host

  3218. 

  3219. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3220.     pathBinaries, pathResources = getPaths(libPrefix)

  3221. 

  3222.     # --------------------------------------------------------------------------------------------------------

  3223.     # Fail if binary dir is not found

  3224. 

  3225.     if not os.path.exists(pathBinaries):

  3226.         if failError:

  3227.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3228.             sys.exit(1)

  3229.         return

  3230. 

  3231.     # --------------------------------------------------------------------------------------------------------

  3232.     # Check if we should open main lib as local or global

  3233. 

  3234.     settings = QSafeSettings("falkTX", "Carla2")

  3235. 

  3236.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3237. 

  3238.     # --------------------------------------------------------------------------------------------------------

  3239.     # Set Carla library name

  3240. 

  3241.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3242.     libname   = os.path.join(pathBinaries, libname)

  3243.     felibname = os.path.join(pathBinaries, "libcarla_frontend.%s" % (DLL_EXTENSION))

  3244.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3245. 

  3246.     # --------------------------------------------------------------------------------------------------------

  3247.     # Print info

  3248. 

  3249.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3250.         print("Carla %s started, status:" % VERSION)

  3251.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3252.         print("  Qt version:     %s" % QT_VERSION_STR)

  3253.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3254.         print("  Binary dir:     %s" % pathBinaries)

  3255.         print("  Resources dir:  %s" % pathResources)

  3256. 

  3257.     # --------------------------------------------------------------------------------------------------------

  3258.     # Init host

  3259. 

  3260.     if failError:

  3261.         # no try

  3262.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3263.     else:

  3264.         try:

  3265.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3266.         except:

  3267.             host = CarlaHostQtNull()

  3268. 

  3269.     host.isControl = isControl

  3270.     host.isPlugin  = isPlugin

  3271. 

  3272.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3273.     host.set_file_callback(fileCallback)

  3274. 

  3275.     # If it's a plugin the paths are already set

  3276.     if not isPlugin:

  3277.         host.pathBinaries  = pathBinaries

  3278.         host.pathResources = pathResources

  3279.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3280.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3281. 

  3282.         if not isControl:

  3283.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3284. 

  3285.     # --------------------------------------------------------------------------------------------------------

  3286.     # Init frontend lib

  3287. 

  3288.     if not gCarla.nogui:

  3289.         gCarla.felib = CarlaFrontendLib(felibname)

  3290. 

  3291.     # --------------------------------------------------------------------------------------------------------

  3292.     # Init utils

  3293. 

  3294.     gCarla.utils = CarlaUtils(utilsname)

  3295.     gCarla.utils.set_process_name(os.path.basename(initName))

  3296. 

  3297.     try:

  3298.         sys.stdout.flush()

  3299.     except:

  3300.         pass

  3301. 

  3302.     sys.stdout = CarlaPrint(False)

  3303.     sys.stderr = CarlaPrint(True)

  3304.     sys.excepthook = sys_excepthook

  3305. 

  3306.     # --------------------------------------------------------------------------------------------------------

  3307.     # Done

  3308. 

  3309.     return host

  3310. 

  3311. # ------------------------------------------------------------------------------------------------------------

  3312. # Load host settings

  3313. 

  3314. def loadHostSettings(host):

  3315.     # kdevelop likes this :)

  3316.     if False: host = CarlaHostNull()

  3317. 

  3318.     settings = QSafeSettings("falkTX", "Carla2")

  3319. 

  3320.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3321.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3322.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3323.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3324.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3325.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3326.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3327.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3328.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3329.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3330.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3331.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3332.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3333.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3334. 

  3335.     if host.isPlugin:

  3336.         return

  3337. 

  3338.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3339. 

  3340.     # enums

  3341.     if host.audioDriverForced is None:

  3342.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3343. 

  3344.     if not host.processModeForced:

  3345.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3346. 

  3347.     host.nextProcessMode = host.processMode

  3348. 

  3349.     # --------------------------------------------------------------------------------------------------------

  3350.     # fix things if needed

  3351. 

  3352.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3353.         if LADISH_APP_NAME:

  3354.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3355.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3356. 

  3357.         else:

  3358.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3359. 

  3360.     if gCarla.nogui:

  3361.         host.showLogs = False

  3362. 

  3363.     # --------------------------------------------------------------------------------------------------------

  3364.     # run headless host now if nogui option enabled

  3365. 

  3366.     if gCarla.nogui:

  3367.         runHostWithoutUI(host)

  3368. 

  3369. # ------------------------------------------------------------------------------------------------------------

  3370. # Set host settings

  3371. 

  3372. def setHostSettings(host):

  3373.     # kdevelop likes this :)

  3374.     if False: host = CarlaHostNull()

  3375. 

  3376.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3377.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3378.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3379.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3380.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3381.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3382.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3383.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3384. 

  3385.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3386.         return

  3387. 

  3388.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3389.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3390.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3391. 

  3392.     if not (NSM_URL and host.nsmOK):

  3393.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3394. 

  3395. # ------------------------------------------------------------------------------------------------------------

  3396. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3397. 

  3398. def setEngineSettings(host, oscPort = None):

  3399.     # kdevelop likes this :)

  3400.     if False: host = CarlaHostNull()

  3401. 

  3402.     # --------------------------------------------------------------------------------------------------------

  3403.     # do nothing if control

  3404. 

  3405.     if host.isControl:

  3406.         return "Control"

  3407. 

  3408.     # --------------------------------------------------------------------------------------------------------

  3409. 

  3410.     settings = QSafeSettings("falkTX", "Carla2")

  3411. 

  3412.     # --------------------------------------------------------------------------------------------------------

  3413.     # main settings

  3414. 

  3415.     setHostSettings(host)

  3416. 

  3417.     # --------------------------------------------------------------------------------------------------------

  3418.     # file paths

  3419. 

  3420.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3421.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3422. 

  3423.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3424.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3425. 

  3426.     # --------------------------------------------------------------------------------------------------------

  3427.     # plugin paths

  3428. 

  3429.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3430.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3431.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3432.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3433.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3434.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3435.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3436.     JSFX_PATH   = settings.value(CARLA_KEY_PATHS_JSFX,   CARLA_DEFAULT_JSFX_PATH, list)

  3437.     CLAP_PATH   = settings.value(CARLA_KEY_PATHS_CLAP,   CARLA_DEFAULT_CLAP_PATH, list)

  3438. 

  3439.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3440.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3441.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3442.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3443.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3444.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3445.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3446.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_JSFX,   splitter.join(JSFX_PATH))

  3447.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_CLAP,   splitter.join(CLAP_PATH))

  3448. 

  3449.     # --------------------------------------------------------------------------------------------------------

  3450.     # don't continue if plugin

  3451. 

  3452.     if host.isPlugin:

  3453.         return "Plugin"

  3454. 

  3455.     # --------------------------------------------------------------------------------------------------------

  3456.     # osc settings

  3457. 

  3458.     if oscPort is not None and isinstance(oscPort, int):

  3459.         oscEnabled = True

  3460.         portNumTCP = portNumUDP = oscPort

  3461. 

  3462.     else:

  3463.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3464. 

  3465.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3466.             portNumTCP = -1

  3467.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3468.             portNumTCP = 0

  3469.         else:

  3470.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3471. 

  3472.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3473.             portNumUDP = -1

  3474.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3475.             portNumUDP = 0

  3476.         else:

  3477.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3478. 

  3479.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3480.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3481.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3482. 

  3483.     # --------------------------------------------------------------------------------------------------------

  3484.     # wine settings

  3485. 

  3486.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3487.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3488.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3489.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3490.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3491.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3492. 

  3493.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3494.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3495.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3496.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3497.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3498.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3499. 

  3500.     # --------------------------------------------------------------------------------------------------------

  3501.     # driver and device settings

  3502. 

  3503.     # driver name

  3504.     if host.audioDriverForced is not None:

  3505.         audioDriver = host.audioDriverForced

  3506.     else:

  3507.         try:

  3508.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3509.         except:

  3510.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3511. 

  3512.     # driver options

  3513.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3514.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3515.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3516.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3517. 

  3518.     # Only setup audio things if engine is not running

  3519.     if not host.is_engine_running():

  3520.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3521.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3522. 

  3523.         if not audioDriver.startswith("JACK"):

  3524.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3525.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3526.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3527. 

  3528.     # --------------------------------------------------------------------------------------------------------

  3529.     # fix things if needed

  3530. 

  3531.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3532.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3533.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3534. 

  3535.     # --------------------------------------------------------------------------------------------------------

  3536.     # return selected driver name

  3537. 

  3538.     return audioDriver

  3539. 

  3540. # ------------------------------------------------------------------------------------------------------------

  3541. # Run Carla without showing UI

  3542. 

  3543. def runHostWithoutUI(host):

  3544.     # kdevelop likes this :)

  3545.     if False: host = CarlaHostNull()

  3546. 

  3547.     # --------------------------------------------------------------------------------------------------------

  3548.     # Some initial checks

  3549. 

  3550.     if not gCarla.nogui:

  3551.         return

  3552. 

  3553.     projectFile = getInitialProjectFile(True)

  3554. 

  3555.     if gCarla.nogui is True:

  3556.         oscPort = None

  3557. 

  3558.         if not projectFile:

  3559.             print("Carla no-gui mode can only be used together with a project file.")

  3560.             sys.exit(1)

  3561. 

  3562.     else:

  3563.         oscPort = gCarla.nogui

  3564. 

  3565.     # --------------------------------------------------------------------------------------------------------

  3566.     # Additional imports

  3567. 

  3568.     from time import sleep

  3569. 

  3570.     # --------------------------------------------------------------------------------------------------------

  3571.     # Init engine

  3572. 

  3573.     audioDriver = setEngineSettings(host, oscPort)

  3574.     if not host.engine_init(audioDriver, "Carla"):

  3575.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3576.         sys.exit(1)

  3577. 

  3578.     if projectFile and not host.load_project(projectFile):

  3579.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3580.         host.engine_close()

  3581.         sys.exit(1)

  3582. 

  3583.     # --------------------------------------------------------------------------------------------------------

  3584.     # Idle

  3585. 

  3586.     print("Carla ready!")

  3587. 

  3588.     while host.is_engine_running() and not gCarla.term:

  3589.         host.engine_idle()

  3590.         sleep(0.0333) # 30 Hz

  3591. 

  3592.     # --------------------------------------------------------------------------------------------------------

  3593.     # Stop

  3594. 

  3595.     host.engine_close()

  3596.     sys.exit(0)

  3597. 

  3598. # ------------------------------------------------------------------------------------------------------------