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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2021 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

  24. # ------------------------------------------------------------------------------------------------------------

  25. # Imports (ctypes)

  26. 

  27. from ctypes import (

  28.     byref, pointer

  29. )

  30. 

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

  32. # Imports (PyQt5)

  33. 

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

  35. try:

  36.     from PyQt5.Qt import PYQT_VERSION

  37. except ImportError:

  38.     PYQT_VERSION = 0x50600

  39. 

  40. from PyQt5.QtCore import (

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

  42. )

  43. from PyQt5.QtGui import (

  44.     QImage, QImageWriter, QPainter, QPalette, QBrush

  45. )

  46. from PyQt5.QtWidgets import (

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

  48. )

  49. 

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

  51. # Imports (Custom)

  52. 

  53. import ui_carla_host

  54. 

  55. from carla_app import *

  56. from carla_backend_qt import CarlaHostQtDLL, CarlaHostQtNull

  57. from carla_database import *

  58. from carla_settings import *

  59. from carla_utils import *

  60. from carla_widgets import *

  61. 

  62. from patchcanvas import patchcanvas

  63. from widgets.digitalpeakmeter import DigitalPeakMeter

  64. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  65. 

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

  67. # Try Import OpenGL

  68. 

  69. try:

  70.     from PyQt5.QtOpenGL import QGLWidget

  71.     hasGL = True

  72. except:

  73.     hasGL = False

  74. 

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

  76. # Safe exception hook, needed for PyQt5

  77. 

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

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

  80. 

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

  82. # Session Management support

  83. 

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

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

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

  87. 

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

  89. # Small print helper

  90. 

  91. def processMode2Str(processMode):

  92.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  93.         return "Single client"

  94.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  95.         return "Multi client"

  96.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  97.         return "Continuous Rack"

  98.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  99.         return "Patchbay"

  100.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  101.         return "Bridge"

  102.     return "Unknown"

  103. 

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

  105. # Carla Print class

  106. 

  107. class CarlaPrint:

  108.     def __init__(self, err):

  109.         self.err = err

  110. 

  111.     def flush(self):

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

  113. 

  114.     def write(self, string):

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

  116. 

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

  118. # Host Window

  119. 

  120. class HostWindow(QMainWindow):

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

  122.     # signals

  123.     SIGTERM = pyqtSignal()

  124.     SIGUSR1 = pyqtSignal()

  125. 

  126.     # CustomActions

  127.     CUSTOM_ACTION_NONE         = 0

  128.     CUSTOM_ACTION_APP_CLOSE    = 1

  129.     CUSTOM_ACTION_PROJECT_LOAD = 2

  130. 

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

  132. 

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

  134.         QMainWindow.__init__(self, parent)

  135.         self.host = host

  136.         self.ui = ui_carla_host.Ui_CarlaHostW()

  137.         self.ui.setupUi(self)

  138.         gCarla.gui = self

  139. 

  140.         if False:

  141.             # kdevelop likes this :)

  142.             host = CarlaHostNull()

  143.             self.host = host

  144. 

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

  146. 

  147.         self.fParentOrSelf = parent or self

  148. 

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

  150.         # Internal stuff

  151. 

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

  153.         self.fIdleTimerFast = 0

  154.         self.fIdleTimerSlow = 0

  155. 

  156.         self.fLadspaRdfNeedsUpdate = True

  157.         self.fLadspaRdfList = []

  158. 

  159.         self.fPluginCount = 0

  160.         self.fPluginList  = []

  161. 

  162.         self.fPluginDatabaseDialog = None

  163.         self.fFavoritePlugins = []

  164. 

  165.         self.fProjectFilename  = ""

  166.         self.fIsProjectLoading = False

  167.         self.fCurrentlyRemovingAllPlugins = False

  168. 

  169.         self.fLastTransportBPM   = 0.0

  170.         self.fLastTransportFrame = 0

  171.         self.fLastTransportState = False

  172.         self.fBufferSize         = 0

  173.         self.fSampleRate         = 0.0

  174.         self.fOscAddressTCP      = ""

  175.         self.fOscAddressUDP      = ""

  176. 

  177.         if MACOS:

  178.             self.fMacClosingHelper = True

  179. 

  180.         # CancelableActionCallback Box

  181.         self.fCancelableActionBox = None

  182. 

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

  184.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  185. 

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

  187.         self.fFirstEngineInit = True

  188. 

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

  190.         self.fSavedSettings = {}

  191. 

  192.         # true if NSM server handles our window management

  193.         self.fWindowCloseHideGui = False

  194. 

  195.         if host.isControl:

  196.             self.fClientName         = "Carla-Control"

  197.             self.fSessionManagerName = "Control"

  198.         elif host.isPlugin:

  199.             self.fClientName         = "Carla-Plugin"

  200.             self.fSessionManagerName = "Plugin"

  201.         elif LADISH_APP_NAME:

  202.             self.fClientName         = LADISH_APP_NAME

  203.             self.fSessionManagerName = "LADISH"

  204.         elif NSM_URL and host.nsmOK:

  205.             self.fClientName         = "Carla.tmp"

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

  207.             self.fWindowCloseHideGui = True

  208.         else:

  209.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  210.             self.fSessionManagerName = ""

  211. 

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

  213.         # Internal stuff (patchbay)

  214. 

  215.         self.fPeaksCleared = True

  216. 

  217.         self.fExternalPatchbay = False

  218.         self.fSelectedPlugins  = []

  219. 

  220.         self.fCanvasWidth  = 0

  221.         self.fCanvasHeight = 0

  222.         self.fMiniCanvasUpdateTimeout = 0

  223. 

  224.         self.fWithCanvas = withCanvas

  225. 

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

  227.         # Internal stuff (logs)

  228. 

  229.         self.autoscrollOnNewLog = True

  230.         self.lastLogSliderPos = 0

  231. 

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

  233.         # Set up GUI (engine stopped)

  234. 

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

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

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

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

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

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

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

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

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

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

  245. 

  246.             if self.host.isControl:

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

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

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

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

  251.             else:

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

  253. 

  254.                 if not withCanvas:

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

  256. 

  257.         else:

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

  259. 

  260.             if WINDOWS:

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

  262. 

  263.         if self.host.isControl:

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

  265.         else:

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

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

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

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

  270. 

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

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

  273. 

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

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

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

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

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

  279. 

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

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

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

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

  284. 

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

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

  287. 

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

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

  290. 

  291.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  309.             self.ui.tw_miniCanvas.hide()

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

  311.             if WINDOWS:

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

  313. 

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

  315.         # Set up GUI (disk)

  316. 

  317.         exts = gCarla.utils.get_supported_file_extensions()

  318. 

  319.         self.fDirModel = QFileSystemModel(self)

  320.         self.fDirModel.setRootPath(HOME)

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

  322. 

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

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

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

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

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

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

  329. 

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

  331.         # Set up GUI (transport)

  332. 

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

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

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

  336. 

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

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

  339. 

  340.         if minLabelWidth < labelTimeWidth:

  341.             minLabelWidth = labelTimeWidth

  342.         if minLabelWidth < labelBBTWidth:

  343.             minLabelWidth = labelBBTWidth

  344. 

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

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

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

  348. 

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

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

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

  352. 

  353.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  366. 

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

  368. 

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

  370.         # Set up GUI (rack)

  371. 

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

  373. 

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

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

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

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

  378. 

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

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

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

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

  383. 

  384.         self.updateStyle()

  385. 

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

  387.           CarlaRackList#CarlaRackList {

  388.             background-color: black;

  389.           }

  390.         """)

  391. 

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

  393.         # Set up GUI (patchbay)

  394. 

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

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

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

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

  399. 

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

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

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

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

  404. 

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

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

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

  408. 

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

  410. 

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

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

  413. 

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

  415.         # Set up GUI (logs)

  416. 

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

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

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

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

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

  422. 

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

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

  425. 

  426.         if MACOS:

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

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

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

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

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

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

  433. 

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

  435.         # Load Settings

  436. 

  437.         self.loadSettings(True)

  438. 

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

  440.         # Set-up Canvas

  441. 

  442.         if withCanvas:

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

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

  445. 

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

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

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

  449. 

  450.             self.setupCanvas()

  451. 

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

  453.         # Set-up Icons

  454. 

  455.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  485. 

  486.         # ----------------------------------------------------------------------------------------------------

  487.         # Connect actions to functions

  488. 

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

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

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

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

  493. 

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

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

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

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

  498. 

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

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

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

  502. 

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

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

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

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

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

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

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

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

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

  512. 

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

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

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

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

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

  518. 

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

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

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

  522. 

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

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

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

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

  527. 

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

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

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

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

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

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

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

  535. 

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

  537. 

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

  539. 

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

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

  542. 

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

  544. 

  545.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  565. 

  566.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  567.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  568. 

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

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

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

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

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

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

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

  576. 

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

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

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

  580. 

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

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

  583. 

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

  585. 

  586.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

  600. 

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

  602. 

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

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

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

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

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

  608. 

  609.         # ----------------------------------------------------------------------------------------------------

  610.         # Final setup

  611. 

  612.         self.ui.text_logs.clear()

  613.         self.slot_logButtonsState(False)

  614.         self.setProperWindowTitle()

  615. 

  616.         # Disable non-supported features

  617.         features = gCarla.utils.get_supported_features()

  618. 

  619.         if "link" not in features:

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

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

  622. 

  623.         if "juce" not in features:

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

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

  626. 

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

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

  629.             self.startTimers()

  630. 

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

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

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

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

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

  636. 

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

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

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

  640. 

  641.         # Load initial project file if set

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

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

  644. 

  645.             if projectFile:

  646.                 self.loadProjectLater(projectFile)

  647. 

  648.         # For NSM we wait for the open message

  649.         if NSM_URL and host.nsmOK:

  650.             host.nsm_ready(NSM_CALLBACK_INIT)

  651.             return

  652. 

  653.         if not host.isControl:

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

  655. 

  656.     # --------------------------------------------------------------------------------------------------------

  657.     # Manage visibility state, needed for NSM

  658. 

  659.     def hideForNSM(self):

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

  661.             if pitem is None:

  662.                 continue

  663.             pitem.getWidget().hideCustomUI()

  664.         self.hide()

  665. 

  666.     def showIfNeeded(self):

  667.         if self.host.nsmOK:

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

  669.             QApplication.instance().setQuitOnLastWindowClosed(False)

  670.         else:

  671.             self.show()

  672. 

  673.     # --------------------------------------------------------------------------------------------------------

  674.     # Setup

  675. 

  676.     def compactPlugin(self, pluginId):

  677.         if pluginId > self.fPluginCount:

  678.             return

  679. 

  680.         pitem = self.fPluginList[pluginId]

  681. 

  682.         if pitem is None:

  683.             return

  684. 

  685.         pitem.recreateWidget(True)

  686. 

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

  688.         if pluginId > self.fPluginCount:

  689.             return

  690. 

  691.         pitem = self.fPluginList[pluginId]

  692. 

  693.         if pitem is None:

  694.             return

  695. 

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

  697.         pitem.recreateWidget(newColor = color)

  698. 

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

  700.         if pluginId > self.fPluginCount:

  701.             return

  702. 

  703.         pitem = self.fPluginList[pluginId]

  704. 

  705.         if pitem is None:

  706.             return

  707. 

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

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

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

  711.         else:

  712.             pitem.recreateWidget(newSkin = skin)

  713. 

  714.     def findPluginInPatchbay(self, pluginId):

  715.         if pluginId > self.fPluginCount:

  716.             return

  717. 

  718.         if self.fExternalPatchbay:

  719.             self.slot_canvasShowInternal()

  720. 

  721.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  723.             if not patchcanvas.focusGroupUsingGroupName(name):

  724.                 return

  725. 

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

  727. 

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

  729.         if pluginIdA == pluginIdB:

  730.             return

  731.         if pluginIdA < 0 or pluginIdB < 0:

  732.             return

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

  734.             return

  735. 

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

  737. 

  738.         itemA = self.fPluginList[pluginIdA]

  739.         compactA = itemA.isCompacted()

  740.         guiShownA = itemA.isGuiShown()

  741. 

  742.         itemB = self.fPluginList[pluginIdB]

  743.         compactB = itemB.isCompacted()

  744.         guiShownB = itemB.isGuiShown()

  745. 

  746.         itemA.setPluginId(pluginIdA)

  747.         itemA.recreateWidget2(compactB, guiShownB)

  748. 

  749.         itemB.setPluginId(pluginIdB)

  750.         itemB.recreateWidget2(compactA, guiShownA)

  751. 

  752.         if self.fWithCanvas:

  753.             self.slot_canvasRefresh()

  754. 

  755.     def setLoadRDFsNeeded(self):

  756.         self.fLadspaRdfNeedsUpdate = True

  757. 

  758.     def setProperWindowTitle(self):

  759.         title = self.fClientName

  760. 

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

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

  763.         if self.fSessionManagerName:

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

  765. 

  766.         self.setWindowTitle(title)

  767. 

  768.     def updateBufferSize(self, newBufferSize):

  769.         if self.fBufferSize == newBufferSize:

  770.             return

  771.         self.fBufferSize = newBufferSize

  772.         self.ui.cb_buffer_size.clear()

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

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

  775. 

  776.     def updateSampleRate(self, newSampleRate):

  777.         if self.fSampleRate == newSampleRate:

  778.             return

  779.         self.fSampleRate = newSampleRate

  780.         self.ui.cb_sample_rate.clear()

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

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

  783.         self.refreshTransport(True)

  784. 

  785.     # --------------------------------------------------------------------------------------------------------

  786.     # Files

  787. 

  788.     def loadProjectNow(self):

  789.         if not self.fProjectFilename:

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

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

  792.             return

  793. 

  794.         self.projectLoadingStarted()

  795.         self.fIsProjectLoading = True

  796. 

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

  798.             self.fIsProjectLoading = False

  799.             self.projectLoadingFinished(True)

  800. 

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

  802.                              self.host.get_last_error(),

  803.                              QMessageBox.Ok, QMessageBox.Ok)

  804. 

  805.     def loadProjectLater(self, filename):

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

  807.         self.setProperWindowTitle()

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

  809. 

  810.     def saveProjectNow(self):

  811.         if not self.fProjectFilename:

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

  813. 

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

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

  816.                              self.host.get_last_error(),

  817.                              QMessageBox.Ok, QMessageBox.Ok)

  818.             return

  819. 

  820.     def projectLoadingStarted(self):

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

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

  823. 

  824.     def projectLoadingFinished(self, refreshCanvas):

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

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

  827. 

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

  829.             return

  830. 

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

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

  833. 

  834.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

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

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

  837.             return False

  838. 

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

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

  841.                 return False

  842. 

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

  844.             try:

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

  846.             except:

  847.                 return False

  848. 

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

  850.         patchcanvas.restoreGroupPositions(canvasdata)

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

  852.         return True

  853. 

  854.     # --------------------------------------------------------------------------------------------------------

  855.     # Files (menu actions)

  856. 

  857.     @pyqtSlot()

  858.     def slot_fileNew(self):

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

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

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

  862.             return

  863. 

  864.         self.pluginRemoveAll()

  865.         self.fProjectFilename = ""

  866.         self.setProperWindowTitle()

  867.         self.host.clear_project_filename()

  868. 

  869.     @pyqtSlot()

  870.     def slot_fileOpen(self):

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

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

  873. 

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

  875.         if not filename:

  876.             return

  877. 

  878.         newFile = True

  879. 

  880.         if self.fPluginCount > 0:

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

  882.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  884. 

  885.         if newFile:

  886.             self.pluginRemoveAll()

  887.             self.fProjectFilename = filename

  888.             self.setProperWindowTitle()

  889.             self.loadProjectNow()

  890.         else:

  891.             filenameOld = self.fProjectFilename

  892.             self.fProjectFilename = filename

  893.             self.loadProjectNow()

  894.             self.fProjectFilename = filenameOld

  895. 

  896.     @pyqtSlot()

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

  898.         if self.fProjectFilename and not saveAs:

  899.             return self.saveProjectNow()

  900. 

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

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

  903. 

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

  905.         if not filename:

  906.             return

  907. 

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

  909.             filename += ".carxp"

  910. 

  911.         if self.fProjectFilename != filename:

  912.             self.fProjectFilename = filename

  913.             self.setProperWindowTitle()

  914. 

  915.         self.saveProjectNow()

  916. 

  917.     @pyqtSlot()

  918.     def slot_fileSaveAs(self):

  919.         self.slot_fileSave(True)

  920. 

  921.     @pyqtSlot()

  922.     def slot_loadProjectNow(self):

  923.         self.loadProjectNow()

  924. 

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

  926.     # Engine (menu actions)

  927. 

  928.     @pyqtSlot()

  929.     def slot_engineStart(self):

  930.         audioDriver = setEngineSettings(self.host)

  931.         firstInit   = self.fFirstEngineInit

  932. 

  933.         self.fFirstEngineInit = False

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

  935. 

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

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

  938.                 settings = QSafeSettings()

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

  940.                 del settings

  941.                 if lastBpm >= 20.0:

  942.                     self.host.transport_bpm(lastBpm)

  943.             return

  944. 

  945.         elif firstInit:

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

  947.             return

  948. 

  949.         audioError = self.host.get_last_error()

  950. 

  951.         if audioError:

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

  953.         else:

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

  955. 

  956.     @pyqtSlot()

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

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

  959. 

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

  961.             self.engineStopFinal()

  962.             return True

  963. 

  964.         if not forced:

  965.             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"

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

  967.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  968.             if ask != QMessageBox.Yes:

  969.                 return False

  970. 

  971.         return self.slot_engineStopTryAgain()

  972. 

  973.     @pyqtSlot()

  974.     def slot_engineConfig(self):

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

  976. 

  977.         if not dialog.exec_():

  978.             return

  979. 

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

  981. 

  982.         if self.host.is_engine_running():

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

  984.         else:

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

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

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

  988. 

  989.     @pyqtSlot()

  990.     def slot_engineStopTryAgain(self):

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

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

  993.             return False

  994. 

  995.         self.engineStopFinal()

  996.         return True

  997. 

  998.     def engineStopFinal(self):

  999.         patchcanvas.handleAllPluginsRemoved()

  1000.         self.killTimers()

  1001. 

  1002.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1003.             self.removeAllPlugins()

  1004.         else:

  1005.             self.fProjectFilename = ""

  1006.             self.setProperWindowTitle()

  1007.             if self.fPluginCount != 0:

  1008.                 self.fCurrentlyRemovingAllPlugins = True

  1009.                 self.projectLoadingStarted()

  1010. 

  1011.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1012.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1013.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1014. 

  1015.         if not self.host.engine_close():

  1016.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1017.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1018. 

  1019.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1020.             self.close()

  1021.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1022.             self.slot_engineStart()

  1023.             self.loadProjectNow()

  1024.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1025. 

  1026.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1027. 

  1028.     # --------------------------------------------------------------------------------------------------------

  1029.     # Engine (host callbacks)

  1030. 

  1031.     @pyqtSlot(int, int, int, int, float, str)

  1032.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

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

  1034.         self.ui.menu_Canvas.setEnabled(True)

  1035.         self.ui.w_transport.setEnabled(True)

  1036. 

  1037.         self.ui.act_canvas_show_internal.blockSignals(True)

  1038.         self.ui.act_canvas_show_external.blockSignals(True)

  1039. 

  1040.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1041.             self.ui.act_canvas_show_internal.setChecked(True)

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

  1043.             self.ui.act_canvas_show_external.setChecked(False)

  1044.             self.ui.act_canvas_show_external.setVisible(True)

  1045.             self.fExternalPatchbay = False

  1046.         else:

  1047.             self.ui.act_canvas_show_internal.setChecked(False)

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

  1049.             self.ui.act_canvas_show_external.setChecked(True)

  1050.             self.ui.act_canvas_show_external.setVisible(False)

  1051.             self.fExternalPatchbay = not self.host.isPlugin

  1052. 

  1053.         self.ui.act_canvas_show_internal.blockSignals(False)

  1054.         self.ui.act_canvas_show_external.blockSignals(False)

  1055. 

  1056.         if not (self.host.isControl or self.host.isPlugin):

  1057.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1058.             self.ui.act_file_save.setEnabled(canSave)

  1059.             self.ui.act_engine_start.setEnabled(False)

  1060.             self.ui.act_engine_stop.setEnabled(True)

  1061. 

  1062.         if not self.host.isPlugin:

  1063.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1064. 

  1065.         if self.host.isPlugin or not self.fSessionManagerName:

  1066.             self.ui.act_file_open.setEnabled(True)

  1067.             self.ui.act_file_save_as.setEnabled(True)

  1068. 

  1069.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1070.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1071. 

  1072.         if self.ui.cb_transport_link.isEnabled():

  1073.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1074. 

  1075.         self.updateBufferSize(bufferSize)

  1076.         self.updateSampleRate(int(sampleRate))

  1077.         self.refreshRuntimeInfo(0.0, 0)

  1078.         self.startTimers()

  1079. 

  1080.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1081.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1082.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1083.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1084.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1085. 

  1086.     @pyqtSlot()

  1087.     def slot_handleEngineStoppedCallback(self):

  1088.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1089. 

  1090.         if self.fWithCanvas:

  1091.             patchcanvas.clear()

  1092. 

  1093.         self.killTimers()

  1094. 

  1095.         # just in case

  1096.         self.removeAllPlugins()

  1097.         self.refreshRuntimeInfo(0.0, 0)

  1098. 

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

  1100.         self.ui.menu_Canvas.setEnabled(False)

  1101.         self.ui.w_transport.setEnabled(False)

  1102. 

  1103.         if not (self.host.isControl or self.host.isPlugin):

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

  1105.             self.ui.act_engine_start.setEnabled(True)

  1106.             self.ui.act_engine_stop.setEnabled(False)

  1107. 

  1108.         if self.host.isPlugin or not self.fSessionManagerName:

  1109.             self.ui.act_file_open.setEnabled(False)

  1110.             self.ui.act_file_save_as.setEnabled(False)

  1111. 

  1112.     @pyqtSlot(int, str)

  1113.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1114.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1115. 

  1116.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1117.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1118. 

  1119.     @pyqtSlot(int)

  1120.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1121.         self.updateBufferSize(newBufferSize)

  1122. 

  1123.     @pyqtSlot(float)

  1124.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1125.         self.updateSampleRate(int(newSampleRate))

  1126. 

  1127.     @pyqtSlot(int, bool, str)

  1128.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1129.         if self.fCancelableActionBox is not None:

  1130.             self.fCancelableActionBox.close()

  1131. 

  1132.         if started:

  1133.             self.fCancelableActionBox = QMessageBox(self)

  1134.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1135.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1136.             self.fCancelableActionBox.setText(action)

  1137.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1138.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1139.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1140.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1141.             self.fCancelableActionBox.show()

  1142. 

  1143.         else:

  1144.             self.fCancelableActionBox = None

  1145. 

  1146.     @pyqtSlot()

  1147.     def slot_canlableActionBoxClicked(self):

  1148.         self.host.cancel_engine_action()

  1149. 

  1150.     @pyqtSlot()

  1151.     def slot_handleProjectLoadFinishedCallback(self):

  1152.         self.fIsProjectLoading = False

  1153.         self.projectLoadingFinished(False)

  1154. 

  1155.     # --------------------------------------------------------------------------------------------------------

  1156.     # Plugins

  1157. 

  1158.     def removeAllPlugins(self):

  1159.         self.ui.act_plugin_remove_all.setEnabled(False)

  1160.         patchcanvas.handleAllPluginsRemoved()

  1161. 

  1162.         while self.ui.listWidget.takeItem(0):

  1163.             pass

  1164. 

  1165.         self.clearSideStuff()

  1166. 

  1167.         for pitem in self.fPluginList:

  1168.             if pitem is None:

  1169.                 continue

  1170. 

  1171.             pitem.close()

  1172.             del pitem

  1173. 

  1174.         self.fPluginCount = 0

  1175.         self.fPluginList  = []

  1176. 

  1177.     # --------------------------------------------------------------------------------------------------------

  1178.     # Plugins (menu actions)

  1179. 

  1180.     def showAddPluginDialog(self):

  1181.         if self.fPluginDatabaseDialog is None:

  1182.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host,

  1183.                                                          self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1184.         dialog = self.fPluginDatabaseDialog

  1185. 

  1186.         ret = dialog.exec_()

  1187. 

  1188.         if dialog.fFavoritePluginsChanged:

  1189.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1190. 

  1191.         if not ret:

  1192.             return

  1193. 

  1194.         if not self.host.is_engine_running():

  1195.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1196.             return

  1197. 

  1198.         btype    = dialog.fRetPlugin['build']

  1199.         ptype    = dialog.fRetPlugin['type']

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

  1201.         label    = dialog.fRetPlugin['label']

  1202.         uniqueId = dialog.fRetPlugin['uniqueId']

  1203.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1204. 

  1205.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1206. 

  1207.     def showAddJackAppDialog(self):

  1208.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1209. 

  1210.         if not dialog.exec_():

  1211.             return

  1212. 

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

  1214.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1215.             return

  1216. 

  1217.         return dialog.getCommandAndFlags()

  1218. 

  1219.     @pyqtSlot()

  1220.     def slot_favoritePluginAdd(self):

  1221.         plugin = self.sender().data()

  1222. 

  1223.         if plugin is None:

  1224.             return

  1225. 

  1226.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1227.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1228.             # remove plugin from favorites

  1229.             try:

  1230.                 self.fFavoritePlugins.remove(plugin)

  1231.             except ValueError:

  1232.                 pass

  1233.             else:

  1234.                 settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1235.                 settingsDBf.setValue("PluginDatabase/Favorites", self.fFavoritePlugins)

  1236.                 settingsDBf.sync()

  1237.                 del settingsDBf

  1238. 

  1239.             CustomMessageBox(self,

  1240.                              QMessageBox.Critical,

  1241.                              self.tr("Error"),

  1242.                              self.tr("Failed to load plugin"),

  1243.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1244. 

  1245.     @pyqtSlot()

  1246.     def slot_showPluginActionsMenu(self):

  1247.         menu = QMenu(self)

  1248. 

  1249.         menu.addSection("Plugins")

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

  1251. 

  1252.         if len(self.fFavoritePlugins) != 0:

  1253.             fmenu = QMenu("Add from favorites", self)

  1254.             for p in self.fFavoritePlugins:

  1255.                 act = fmenu.addAction(p['name'])

  1256.                 act.setData(p)

  1257.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1258.             menu.addMenu(fmenu)

  1259. 

  1260.         menu.addAction(self.ui.act_plugin_remove_all)

  1261. 

  1262.         menu.addSection("All plugins (macros)")

  1263.         menu.addAction(self.ui.act_plugins_enable)

  1264.         menu.addAction(self.ui.act_plugins_disable)

  1265.         menu.addSeparator()

  1266.         menu.addAction(self.ui.act_plugins_volume100)

  1267.         menu.addAction(self.ui.act_plugins_mute)

  1268.         menu.addSeparator()

  1269.         menu.addAction(self.ui.act_plugins_wet100)

  1270.         menu.addAction(self.ui.act_plugins_bypass)

  1271.         menu.addSeparator()

  1272.         menu.addAction(self.ui.act_plugins_center)

  1273.         menu.addSeparator()

  1274.         menu.addAction(self.ui.act_plugins_compact)

  1275.         menu.addAction(self.ui.act_plugins_expand)

  1276. 

  1277.         menu.exec_(QCursor.pos())

  1278. 

  1279.     @pyqtSlot()

  1280.     def slot_pluginAdd(self):

  1281.         data = self.showAddPluginDialog()

  1282. 

  1283.         if data is None:

  1284.             return

  1285. 

  1286.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1287. 

  1288.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1289.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1290.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1291. 

  1292.     @pyqtSlot()

  1293.     def slot_confirmRemoveAll(self):

  1294.         if self.fPluginCount == 0:

  1295.             return

  1296. 

  1297.         if QMessageBox.question(self, self.tr("Remove All"),

  1298.                                       self.tr("Are you sure you want to remove all plugins?"),

  1299.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1300.             return

  1301. 

  1302.         self.pluginRemoveAll()

  1303. 

  1304.     def pluginRemoveAll(self):

  1305.         if self.fPluginCount == 0:

  1306.             return

  1307. 

  1308.         self.fCurrentlyRemovingAllPlugins = True

  1309.         self.projectLoadingStarted()

  1310. 

  1311.         if not self.host.remove_all_plugins():

  1312.             self.projectLoadingFinished(True)

  1313.             self.fCurrentlyRemovingAllPlugins = False

  1314.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1315.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1316. 

  1317.     @pyqtSlot()

  1318.     def slot_jackAppAdd(self):

  1319.         data = self.showAddJackAppDialog()

  1320. 

  1321.         if data is None:

  1322.             return

  1323. 

  1324.         filename, name, label = data

  1325. 

  1326.         if not filename:

  1327.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1328.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1329.             return

  1330. 

  1331.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1332.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1333.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1334. 

  1335.     # --------------------------------------------------------------------------------------------------------

  1336.     # Plugins (macros)

  1337. 

  1338.     @pyqtSlot()

  1339.     def slot_pluginsEnable(self):

  1340.         if not self.host.is_engine_running():

  1341.             return

  1342. 

  1343.         for pitem in self.fPluginList:

  1344.             if pitem is None:

  1345.                 break

  1346. 

  1347.             pitem.getWidget().setActive(True, True, True)

  1348. 

  1349.     @pyqtSlot()

  1350.     def slot_pluginsDisable(self):

  1351.         if not self.host.is_engine_running():

  1352.             return

  1353. 

  1354.         for pitem in self.fPluginList:

  1355.             if pitem is None:

  1356.                 break

  1357. 

  1358.             pitem.getWidget().setActive(False, True, True)

  1359. 

  1360.     @pyqtSlot()

  1361.     def slot_pluginsVolume100(self):

  1362.         if not self.host.is_engine_running():

  1363.             return

  1364. 

  1365.         for pitem in self.fPluginList:

  1366.             if pitem is None:

  1367.                 break

  1368. 

  1369.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1370. 

  1371.     @pyqtSlot()

  1372.     def slot_pluginsMute(self):

  1373.         if not self.host.is_engine_running():

  1374.             return

  1375. 

  1376.         for pitem in self.fPluginList:

  1377.             if pitem is None:

  1378.                 break

  1379. 

  1380.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1381. 

  1382.     @pyqtSlot()

  1383.     def slot_pluginsWet100(self):

  1384.         if not self.host.is_engine_running():

  1385.             return

  1386. 

  1387.         for pitem in self.fPluginList:

  1388.             if pitem is None:

  1389.                 break

  1390. 

  1391.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1392. 

  1393.     @pyqtSlot()

  1394.     def slot_pluginsBypass(self):

  1395.         if not self.host.is_engine_running():

  1396.             return

  1397. 

  1398.         for pitem in self.fPluginList:

  1399.             if pitem is None:

  1400.                 break

  1401. 

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

  1403. 

  1404.     @pyqtSlot()

  1405.     def slot_pluginsCenter(self):

  1406.         if not self.host.is_engine_running():

  1407.             return

  1408. 

  1409.         for pitem in self.fPluginList:

  1410.             if pitem is None:

  1411.                 break

  1412. 

  1413.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1414.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1415.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1416. 

  1417.     @pyqtSlot()

  1418.     def slot_pluginsCompact(self):

  1419.         for pitem in self.fPluginList:

  1420.             if pitem is None:

  1421.                 break

  1422.             pitem.compact()

  1423. 

  1424.     @pyqtSlot()

  1425.     def slot_pluginsExpand(self):

  1426.         for pitem in self.fPluginList:

  1427.             if pitem is None:

  1428.                 break

  1429.             pitem.expand()

  1430. 

  1431.     # --------------------------------------------------------------------------------------------------------

  1432.     # Plugins (host callbacks)

  1433. 

  1434.     @pyqtSlot(int, str)

  1435.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1436.         if pluginId != self.fPluginCount:

  1437.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1438.             pitem = self.getPluginItem(pluginId)

  1439.             pitem.recreateWidget()

  1440.             return

  1441. 

  1442.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN])

  1443.         self.fPluginList.append(pitem)

  1444.         self.fPluginCount += 1

  1445. 

  1446.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1447. 

  1448.     @pyqtSlot(int)

  1449.     def slot_handlePluginRemovedCallback(self, pluginId):

  1450.         if self.fWithCanvas:

  1451.             patchcanvas.handlePluginRemoved(pluginId)

  1452. 

  1453.         if pluginId in self.fSelectedPlugins:

  1454.             self.clearSideStuff()

  1455. 

  1456.         if self.fPluginCount == 0:

  1457.             return

  1458. 

  1459.         pitem = self.getPluginItem(pluginId)

  1460. 

  1461.         self.fPluginCount -= 1

  1462.         self.fPluginList.pop(pluginId)

  1463.         self.ui.listWidget.takeItem(pluginId)

  1464. 

  1465.         if pitem is not None:

  1466.             pitem.close()

  1467.             del pitem

  1468. 

  1469.         if self.fPluginCount == 0:

  1470.             self.ui.act_plugin_remove_all.setEnabled(False)

  1471.             if self.fCurrentlyRemovingAllPlugins:

  1472.                 self.fCurrentlyRemovingAllPlugins = False

  1473.                 self.projectLoadingFinished(False)

  1474.             return

  1475. 

  1476.         # push all plugins 1 slot back

  1477.         for i in range(pluginId, self.fPluginCount):

  1478.             pitem = self.fPluginList[i]

  1479.             pitem.setPluginId(i)

  1480. 

  1481.         self.ui.act_plugin_remove_all.setEnabled(True)

  1482. 

  1483.     # --------------------------------------------------------------------------------------------------------

  1484.     # Canvas

  1485. 

  1486.     def clearSideStuff(self):

  1487.         if self.fWithCanvas:

  1488.             self.scene.clearSelection()

  1489. 

  1490.         self.fSelectedPlugins = []

  1491. 

  1492.         self.ui.keyboard.allNotesOff(False)

  1493.         self.ui.scrollArea.setEnabled(False)

  1494. 

  1495.         self.fPeaksCleared = True

  1496.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1497.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1498.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1499.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1500. 

  1501.     def setupCanvas(self):

  1502.         pOptions = patchcanvas.options_t()

  1503.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1504.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1505.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1506.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1507.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1508.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1509. 

  1510.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1511.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1512.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1513.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1514.         else:

  1515.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1516. 

  1517.         pFeatures = patchcanvas.features_t()

  1518.         pFeatures.group_info   = False

  1519.         pFeatures.group_rename = False

  1520.         pFeatures.port_info    = False

  1521.         pFeatures.port_rename  = False

  1522.         pFeatures.handle_group_pos = False

  1523. 

  1524.         patchcanvas.setOptions(pOptions)

  1525.         patchcanvas.setFeatures(pFeatures)

  1526.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1527. 

  1528.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1529. 

  1530.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1531.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1532.             self.fCanvasHeight = int(tryCanvasSize[1])

  1533.         else:

  1534.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1535.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1536. 

  1537.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1538.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1539.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1540. 

  1541.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1542.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1543. 

  1544.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1545.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1546. 

  1547.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1548.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1549.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1550. 

  1551.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1552.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1553. 

  1554.         else:

  1555.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1556. 

  1557.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1558.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1559.         else:

  1560.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1561. 

  1562.     def updateCanvasInitialPos(self):

  1563.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1564.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1565.         patchcanvas.setInitialPos(x, y)

  1566. 

  1567.     def updateMiniCanvasLater(self):

  1568.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1569. 

  1570.     # --------------------------------------------------------------------------------------------------------

  1571.     # Canvas (menu actions)

  1572. 

  1573.     @pyqtSlot()

  1574.     def slot_canvasShowInternal(self):

  1575.         self.fExternalPatchbay = False

  1576.         self.ui.act_canvas_show_internal.blockSignals(True)

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

  1578.         self.ui.act_canvas_show_internal.setChecked(True)

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

  1580.         self.ui.act_canvas_show_internal.blockSignals(False)

  1581.         self.ui.act_canvas_show_external.blockSignals(False)

  1582.         self.slot_canvasRefresh()

  1583. 

  1584.     @pyqtSlot()

  1585.     def slot_canvasShowExternal(self):

  1586.         self.fExternalPatchbay = True

  1587.         self.ui.act_canvas_show_internal.blockSignals(True)

  1588.         self.ui.act_canvas_show_external.blockSignals(True)

  1589.         self.ui.act_canvas_show_internal.setChecked(False)

  1590.         self.ui.act_canvas_show_external.setChecked(True)

  1591.         self.ui.act_canvas_show_internal.blockSignals(False)

  1592.         self.ui.act_canvas_show_external.blockSignals(False)

  1593.         self.slot_canvasRefresh()

  1594. 

  1595.     @pyqtSlot()

  1596.     def slot_canvasArrange(self):

  1597.         patchcanvas.arrange()

  1598. 

  1599.     @pyqtSlot()

  1600.     def slot_canvasRefresh(self):

  1601.         patchcanvas.clear()

  1602. 

  1603.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1604.             return

  1605. 

  1606.         if self.host.is_engine_running():

  1607.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1608. 

  1609.         self.updateMiniCanvasLater()

  1610. 

  1611.     @pyqtSlot()

  1612.     def slot_canvasZoomFit(self):

  1613.         self.scene.zoom_fit()

  1614. 

  1615.     @pyqtSlot()

  1616.     def slot_canvasZoomIn(self):

  1617.         self.scene.zoom_in()

  1618. 

  1619.     @pyqtSlot()

  1620.     def slot_canvasZoomOut(self):

  1621.         self.scene.zoom_out()

  1622. 

  1623.     @pyqtSlot()

  1624.     def slot_canvasZoomReset(self):

  1625.         self.scene.zoom_reset()

  1626. 

  1627.     def _canvasImageRender(self, zoom = 1.0):

  1628.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1629.         painter = QPainter(image)

  1630.         painter.save()

  1631.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1632.         self.scene.clearSelection()

  1633.         self.scene.render(painter)

  1634.         painter.restore()

  1635.         del painter

  1636.         return image

  1637. 

  1638.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1639.         iw.setFormat(imgFormat)

  1640.         iw.setCompression(-1)

  1641.         if QT_VERSION >= 0x50500:

  1642.             iw.setOptimizedWrite(True)

  1643.         iw.write(image)

  1644. 

  1645.     @pyqtSlot()

  1646.     def slot_canvasSaveImage(self):

  1647.         if self.fProjectFilename:

  1648.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1649.         else:

  1650.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1651. 

  1652.         fileDialog = QFileDialog(self)

  1653.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1654.         fileDialog.setDirectory(dir)

  1655.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1656.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1657.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1658.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1659.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1660. 

  1661.         ok = fileDialog.exec_()

  1662. 

  1663.         if not ok:

  1664.             return

  1665. 

  1666.         newPath = fileDialog.selectedFiles()

  1667. 

  1668.         if len(newPath) != 1:

  1669.             return

  1670. 

  1671.         newPath = newPath[0]

  1672. 

  1673.         if QT_VERSION >= 0x50900:

  1674.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1675.                 imgFormat = b"JPG"

  1676.             else:

  1677.                 imgFormat = b"PNG"

  1678.         else:

  1679.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1680.                 imgFormat = b"JPG"

  1681.             else:

  1682.                 imgFormat = b"PNG"

  1683. 

  1684.         sender = self.sender()

  1685.         if sender == self.ui.act_canvas_save_image_2x:

  1686.             zoom = 2.0

  1687.         elif sender == self.ui.act_canvas_save_image_4x:

  1688.             zoom = 4.0

  1689.         else:

  1690.             zoom = 1.0

  1691. 

  1692.         image = self._canvasImageRender(zoom)

  1693.         iw = QImageWriter(newPath)

  1694.         self._canvasImageWrite(iw, imgFormat, image)

  1695. 

  1696.     @pyqtSlot()

  1697.     def slot_canvasCopyToClipboard(self):

  1698.         buffer = QBuffer()

  1699.         buffer.open(QIODevice.WriteOnly)

  1700. 

  1701.         image = self._canvasImageRender()

  1702.         iw = QImageWriter(buffer, b"PNG")

  1703.         self._canvasImageWrite(iw, b"PNG", image)

  1704. 

  1705.         buffer.close()

  1706. 

  1707.         mimeData = QMimeData()

  1708.         mimeData.setData("image/png", buffer.buffer());

  1709. 

  1710.         QApplication.clipboard().setMimeData(mimeData)

  1711. 

  1712.     # --------------------------------------------------------------------------------------------------------

  1713.     # Canvas (canvas callbacks)

  1714. 

  1715.     @pyqtSlot()

  1716.     def slot_canvasSelectionChanged(self):

  1717.         self.updateMiniCanvasLater()

  1718. 

  1719.     @pyqtSlot(float)

  1720.     def slot_canvasScaleChanged(self, scale):

  1721.         self.ui.miniCanvasPreview.setViewScale(scale)

  1722. 

  1723.     @pyqtSlot(list)

  1724.     def slot_canvasPluginSelected(self, pluginList):

  1725.         self.ui.keyboard.allNotesOff(False)

  1726.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1727.         self.fSelectedPlugins = pluginList

  1728. 

  1729.     # --------------------------------------------------------------------------------------------------------

  1730.     # Canvas (host callbacks)

  1731. 

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

  1733.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1734.         pcSplit = patchcanvas.SPLIT_UNDEF

  1735.         pcIcon  = patchcanvas.ICON_APPLICATION

  1736. 

  1737.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1738.             pcIcon = patchcanvas.ICON_PLUGIN

  1739.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1740.             pcIcon = patchcanvas.ICON_HARDWARE

  1741.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1742.             pass

  1743.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1744.             pcIcon = patchcanvas.ICON_DISTRHO

  1745.         elif clientIcon == PATCHBAY_ICON_FILE:

  1746.             pcIcon = patchcanvas.ICON_FILE

  1747. 

  1748.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1749. 

  1750.         self.updateMiniCanvasLater()

  1751. 

  1752.         if pluginId < 0:

  1753.             return

  1754.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1755.             print("Error mapping plugin to canvas client:", clientName)

  1756.             return

  1757. 

  1758.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1759.             hasCustomUI = False

  1760.             hasInlineDisplay = False

  1761.         else:

  1762.             hints = self.host.get_plugin_info(pluginId)['hints']

  1763.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1764.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1765. 

  1766.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1767. 

  1768.     @pyqtSlot(int)

  1769.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1770.         patchcanvas.removeGroup(clientId)

  1771.         self.updateMiniCanvasLater()

  1772. 

  1773.     @pyqtSlot(int, str)

  1774.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1775.         patchcanvas.renameGroup(clientId, newClientName)

  1776.         self.updateMiniCanvasLater()

  1777. 

  1778.     @pyqtSlot(int, int, int)

  1779.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1780.         pcIcon = patchcanvas.ICON_APPLICATION

  1781. 

  1782.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1783.             pcIcon = patchcanvas.ICON_PLUGIN

  1784.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1785.             pcIcon = patchcanvas.ICON_HARDWARE

  1786.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1787.             pass

  1788.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1789.             pcIcon = patchcanvas.ICON_DISTRHO

  1790.         elif clientIcon == PATCHBAY_ICON_FILE:

  1791.             pcIcon = patchcanvas.ICON_FILE

  1792. 

  1793.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1794.         self.updateMiniCanvasLater()

  1795. 

  1796.         if pluginId < 0:

  1797.             return

  1798.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1799.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1800.             return

  1801. 

  1802.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1803.             hasCustomUI = False

  1804.             hasInlineDisplay = False

  1805.         else:

  1806.             hints = self.host.get_plugin_info(pluginId)['hints']

  1807.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1808.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1809. 

  1810.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1811. 

  1812.     @pyqtSlot(int, int, int, int, int)

  1813.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1814.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1815.             patchcanvas.splitGroup(clientId)

  1816.         else:

  1817.             patchcanvas.joinGroup(clientId)

  1818.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1819.         self.updateMiniCanvasLater()

  1820. 

  1821.     @pyqtSlot(int, int, int, int, str)

  1822.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1823.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1824.             portMode = patchcanvas.PORT_MODE_INPUT

  1825.         else:

  1826.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1827. 

  1828.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1829.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1830.             isAlternate = False

  1831.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1832.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1833.             isAlternate = False

  1834.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1835.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1836.             isAlternate = False

  1837.         else:

  1838.             portType    = patchcanvas.PORT_TYPE_NULL

  1839.             isAlternate = False

  1840. 

  1841.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1842.         self.updateMiniCanvasLater()

  1843. 

  1844.     @pyqtSlot(int, int)

  1845.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1846.         patchcanvas.removePort(groupId, portId)

  1847.         self.updateMiniCanvasLater()

  1848. 

  1849.     @pyqtSlot(int, int, int, int, str)

  1850.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1851.         patchcanvas.renamePort(groupId, portId, newPortName)

  1852.         self.updateMiniCanvasLater()

  1853. 

  1854.     @pyqtSlot(int, int, int, str)

  1855.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1856.         # TODO

  1857.         pass

  1858. 

  1859.     @pyqtSlot(int, int)

  1860.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1861.         # TODO

  1862.         pass

  1863. 

  1864.     @pyqtSlot(int, int, int, str)

  1865.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1866.         # TODO

  1867.         pass

  1868. 

  1869.     @pyqtSlot(int, int, int, int, int)

  1870.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1871.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1872.         self.updateMiniCanvasLater()

  1873. 

  1874.     @pyqtSlot(int, int, int)

  1875.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1876.         patchcanvas.disconnectPorts(connectionId)

  1877.         self.updateMiniCanvasLater()

  1878. 

  1879.     # --------------------------------------------------------------------------------------------------------

  1880.     # Settings

  1881. 

  1882.     def saveSettings(self):

  1883.         settings = QSafeSettings()

  1884. 

  1885.         settings.setValue("Geometry", self.saveGeometry())

  1886.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1887.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1888. 

  1889.         diskFolders = []

  1890. 

  1891.         for i in range(self.ui.cb_disk.count()):

  1892.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1893. 

  1894.         settings.setValue("DiskFolders", diskFolders)

  1895.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1896. 

  1897.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1898.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1899.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1900.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1901. 

  1902.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1903.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1904. 

  1905.         return settings

  1906. 

  1907.     def loadSettings(self, firstTime):

  1908.         settings = QSafeSettings()

  1909. 

  1910.         if firstTime:

  1911.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1912.             if not geometry.isNull():

  1913.                 self.restoreGeometry(geometry)

  1914. 

  1915.             showToolbar = settings.value("ShowToolbar", True, bool)

  1916.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1917.             self.ui.toolBar.setEnabled(showToolbar)

  1918.             self.ui.toolBar.setVisible(showToolbar)

  1919. 

  1920.             #if settings.contains("SplitterState"):

  1921.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1922.             #else:

  1923.                 #self.ui.splitter.setSizes([210, 99999])

  1924. 

  1925.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1926.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1927.             self.slot_showSidePanel(showSidePanel)

  1928. 

  1929.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1930. 

  1931.             self.ui.cb_disk.setItemData(0, HOME)

  1932. 

  1933.             for i in range(len(diskFolders)):

  1934.                 if i == 0: continue

  1935.                 folder = diskFolders[i]

  1936.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1937. 

  1938.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1939.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1940. 

  1941.             showMeters = settings.value("ShowMeters", True, bool)

  1942.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1943.             self.ui.peak_in.setVisible(showMeters)

  1944.             self.ui.peak_out.setVisible(showMeters)

  1945. 

  1946.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1947.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1948.             self.ui.scrollArea.setVisible(showKeyboard)

  1949. 

  1950.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1951.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1952. 

  1953.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1954. 

  1955.         # TODO - complete this

  1956.         oldSettings = self.fSavedSettings

  1957. 

  1958.         self.fSavedSettings = {

  1959.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1960.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1961.             CARLA_KEY_MAIN_CLASSIC_SKIN:        settings.value(CARLA_KEY_MAIN_CLASSIC_SKIN,        CARLA_DEFAULT_MAIN_CLASSIC_SKIN,        bool),

  1962.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1963.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  1964.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1965.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1966.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1967.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1968.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1969.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1970.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1971.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1972.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1973.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1974.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1975.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1976.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1977.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1978.         }

  1979. 

  1980.         if not self.host.isControl:

  1981.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1982.         else:

  1983.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1984. 

  1985.         settings2 = QSafeSettings("falkTX", "Carla2")

  1986. 

  1987.         if self.host.experimental:

  1988.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1989.             self.ui.act_plugin_add_jack.setVisible(visible)

  1990.         else:

  1991.             self.ui.act_plugin_add_jack.setVisible(False)

  1992. 

  1993.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1994. 

  1995.         setEngineSettings(self.host)

  1996.         self.restartTimersIfNeeded()

  1997. 

  1998.         if oldSettings.get(CARLA_KEY_MAIN_CLASSIC_SKIN, None) not in (self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN], None):

  1999.             newSkin = "classic" if self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN] else None

  2000. 

  2001.             for pitem in self.fPluginList:

  2002.                 if pitem is None:

  2003.                     continue

  2004.                 pitem.recreateWidget(newSkin = newSkin)

  2005. 

  2006.         return settings

  2007. 

  2008.     # --------------------------------------------------------------------------------------------------------

  2009.     # Settings (helpers)

  2010. 

  2011.     def enableTransport(self, enabled):

  2012.         self.ui.group_transport_controls.setEnabled(enabled)

  2013.         self.ui.group_transport_settings.setEnabled(enabled)

  2014. 

  2015.     @pyqtSlot()

  2016.     def slot_restoreCanvasScrollbarValues(self):

  2017.         settings = QSafeSettings()

  2018.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  2019.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  2020.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2021.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2022. 

  2023.     # --------------------------------------------------------------------------------------------------------

  2024.     # Settings (menu actions)

  2025. 

  2026.     @pyqtSlot(bool)

  2027.     def slot_showSidePanel(self, yesNo):

  2028.         self.ui.dockWidget.setEnabled(yesNo)

  2029.         self.ui.dockWidget.setVisible(yesNo)

  2030. 

  2031.     @pyqtSlot(bool)

  2032.     def slot_showToolbar(self, yesNo):

  2033.         self.ui.toolBar.setEnabled(yesNo)

  2034.         self.ui.toolBar.setVisible(yesNo)

  2035. 

  2036.     @pyqtSlot(bool)

  2037.     def slot_showCanvasMeters(self, yesNo):

  2038.         self.ui.peak_in.setVisible(yesNo)

  2039.         self.ui.peak_out.setVisible(yesNo)

  2040.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2041. 

  2042.     @pyqtSlot(bool)

  2043.     def slot_showCanvasKeyboard(self, yesNo):

  2044.         self.ui.scrollArea.setVisible(yesNo)

  2045.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2046. 

  2047.     @pyqtSlot()

  2048.     def slot_configureCarla(self):

  2049.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2050.         if not dialog.exec_():

  2051.             return

  2052. 

  2053.         self.loadSettings(False)

  2054. 

  2055.         if self.fWithCanvas:

  2056.             patchcanvas.clear()

  2057.             self.setupCanvas()

  2058.             self.slot_miniCanvasCheckAll()

  2059. 

  2060.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2061.             pass

  2062.         elif self.host.is_engine_running():

  2063.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2064. 

  2065.     # --------------------------------------------------------------------------------------------------------

  2066.     # About (menu actions)

  2067. 

  2068.     @pyqtSlot()

  2069.     def slot_aboutCarla(self):

  2070.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2071. 

  2072.     @pyqtSlot()

  2073.     def slot_aboutJuce(self):

  2074.         JuceAboutW(self.fParentOrSelf).exec_()

  2075. 

  2076.     @pyqtSlot()

  2077.     def slot_aboutQt(self):

  2078.         QApplication.instance().aboutQt()

  2079. 

  2080.     # --------------------------------------------------------------------------------------------------------

  2081.     # Disk (menu actions)

  2082. 

  2083.     @pyqtSlot(int)

  2084.     def slot_diskFolderChanged(self, index):

  2085.         if index < 0:

  2086.             return

  2087.         elif index == 0:

  2088.             filename = HOME

  2089.             self.ui.b_disk_remove.setEnabled(False)

  2090.         else:

  2091.             filename = self.ui.cb_disk.itemData(index)

  2092.             self.ui.b_disk_remove.setEnabled(True)

  2093. 

  2094.         self.fDirModel.setRootPath(filename)

  2095.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2096. 

  2097.     @pyqtSlot()

  2098.     def slot_diskFolderAdd(self):

  2099.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2100. 

  2101.         if newPath:

  2102.             if newPath[-1] == os.sep:

  2103.                 newPath = newPath[:-1]

  2104.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2105.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2106.             self.ui.b_disk_remove.setEnabled(True)

  2107. 

  2108.     @pyqtSlot()

  2109.     def slot_diskFolderRemove(self):

  2110.         index = self.ui.cb_disk.currentIndex()

  2111. 

  2112.         if index <= 0:

  2113.             return

  2114. 

  2115.         self.ui.cb_disk.removeItem(index)

  2116. 

  2117.         if self.ui.cb_disk.currentIndex() == 0:

  2118.             self.ui.b_disk_remove.setEnabled(False)

  2119. 

  2120.     @pyqtSlot(QModelIndex)

  2121.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2122.         filename = self.fDirModel.filePath(modelIndex)

  2123. 

  2124.         if not self.ui.listWidget.isDragUrlValid(filename):

  2125.             return

  2126. 

  2127.         if not self.host.load_file(filename):

  2128.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2129.                              self.tr("Failed to load file"),

  2130.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2131.             return

  2132. 

  2133.         if filename.endswith(".carxp"):

  2134.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2135. 

  2136.     # --------------------------------------------------------------------------------------------------------

  2137.     # Transport

  2138. 

  2139.     def refreshTransport(self, forced = False):

  2140.         if not self.ui.l_transport_time.isVisible():

  2141.             return

  2142.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2143.             return

  2144. 

  2145.         timeInfo = self.host.get_transport_info()

  2146.         playing  = timeInfo['playing']

  2147.         frame    = timeInfo['frame']

  2148.         bpm      = timeInfo['bpm']

  2149. 

  2150.         if playing != self.fLastTransportState or forced:

  2151.             if playing:

  2152.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2153.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2154.                 else:

  2155.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2156.                 self.ui.b_transport_play.setChecked(True)

  2157.                 self.ui.b_transport_play.setIcon(icon)

  2158.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2159.             else:

  2160.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2161.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2162.                 else:

  2163.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2164.                 self.ui.b_transport_play.setChecked(False)

  2165.                 self.ui.b_transport_play.setIcon(icon)

  2166.                 #self.ui.b_play.setText(self.tr("&Play"))

  2167. 

  2168.             self.fLastTransportState = playing

  2169. 

  2170.         if frame != self.fLastTransportFrame or forced:

  2171.             self.fLastTransportFrame = frame

  2172. 

  2173.             time = frame / self.fSampleRate

  2174.             secs =  time % 60

  2175.             mins = (time / 60) % 60

  2176.             hrs  = (time / 3600) % 60

  2177.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2178. 

  2179.             frame1 =  frame % 1000

  2180.             frame2 = (frame / 1000) % 1000

  2181.             frame3 = (frame / 1000000) % 1000

  2182.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2183. 

  2184.             bar  = timeInfo['bar']

  2185.             beat = timeInfo['beat']

  2186.             tick = timeInfo['tick']

  2187.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2188. 

  2189.         if bpm != self.fLastTransportBPM or forced:

  2190.             self.fLastTransportBPM = bpm

  2191. 

  2192.             if bpm > 0.0:

  2193.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2194.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2195.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2196.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2197.             else:

  2198.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2199. 

  2200.     # --------------------------------------------------------------------------------------------------------

  2201.     # Transport (menu actions)

  2202. 

  2203.     @pyqtSlot(bool)

  2204.     def slot_transportPlayPause(self, toggled):

  2205.         if self.host.isPlugin or not self.host.is_engine_running():

  2206.             return

  2207. 

  2208.         if toggled:

  2209.             self.host.transport_play()

  2210.         else:

  2211.             self.host.transport_pause()

  2212. 

  2213.         self.refreshTransport()

  2214. 

  2215.     @pyqtSlot()

  2216.     def slot_transportStop(self):

  2217.         if self.host.isPlugin or not self.host.is_engine_running():

  2218.             return

  2219. 

  2220.         self.host.transport_pause()

  2221.         self.host.transport_relocate(0)

  2222. 

  2223.         self.refreshTransport()

  2224. 

  2225.     @pyqtSlot()

  2226.     def slot_transportBackwards(self):

  2227.         if self.host.isPlugin or not self.host.is_engine_running():

  2228.             return

  2229. 

  2230.         newFrame = self.host.get_current_transport_frame() - 100000

  2231. 

  2232.         if newFrame < 0:

  2233.             newFrame = 0

  2234. 

  2235.         self.host.transport_relocate(newFrame)

  2236. 

  2237.     @pyqtSlot(float)

  2238.     def slot_transportBpmChanged(self, newValue):

  2239.         self.host.transport_bpm(newValue)

  2240. 

  2241.     @pyqtSlot()

  2242.     def slot_transportForwards(self):

  2243.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2244.             return

  2245. 

  2246.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2247.         self.host.transport_relocate(newFrame)

  2248. 

  2249.     @pyqtSlot(bool)

  2250.     def slot_transportJackEnabled(self, clicked):

  2251.         if not self.host.is_engine_running():

  2252.             return

  2253.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2254.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2255.                                     self.host.transportMode,

  2256.                                     self.host.transportExtra)

  2257. 

  2258.     @pyqtSlot(bool)

  2259.     def slot_transportLinkEnabled(self, clicked):

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

  2261.             return

  2262.         extra = ":link:" if clicked else ""

  2263.         self.host.transportExtra = extra

  2264.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2265.                                     self.host.transportMode,

  2266.                                     self.host.transportExtra)

  2267. 

  2268.     # --------------------------------------------------------------------------------------------------------

  2269.     # Other

  2270. 

  2271.     @pyqtSlot(bool)

  2272.     def slot_xrunClear(self):

  2273.         self.host.clear_engine_xruns()

  2274. 

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

  2276.     # Canvas scrollbars

  2277. 

  2278.     @pyqtSlot(int)

  2279.     def slot_horizontalScrollBarChanged(self, value):

  2280.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2281.         if maximum == 0:

  2282.             xp = 0

  2283.         else:

  2284.             xp = float(value) / maximum

  2285.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2286.         self.updateCanvasInitialPos()

  2287. 

  2288.     @pyqtSlot(int)

  2289.     def slot_verticalScrollBarChanged(self, value):

  2290.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2291.         if maximum == 0:

  2292.             yp = 0

  2293.         else:

  2294.             yp = float(value) / maximum

  2295.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2296.         self.updateCanvasInitialPos()

  2297. 

  2298.     # --------------------------------------------------------------------------------------------------------

  2299.     # Canvas keyboard

  2300. 

  2301.     @pyqtSlot(int)

  2302.     def slot_noteOn(self, note):

  2303.         if self.fPluginCount == 0:

  2304.             return

  2305. 

  2306.         for pluginId in self.fSelectedPlugins:

  2307.             self.host.send_midi_note(pluginId, 0, note, 100)

  2308. 

  2309.             pedit = self.getPluginEditDialog(pluginId)

  2310.             pedit.noteOn(0, note, 100)

  2311. 

  2312.     @pyqtSlot(int)

  2313.     def slot_noteOff(self, note):

  2314.         if self.fPluginCount == 0:

  2315.             return

  2316. 

  2317.         for pluginId in self.fSelectedPlugins:

  2318.             self.host.send_midi_note(pluginId, 0, note, 0)

  2319. 

  2320.             pedit = self.getPluginEditDialog(pluginId)

  2321.             pedit.noteOff(0, note)

  2322. 

  2323.     # --------------------------------------------------------------------------------------------------------

  2324.     # Canvas keyboard (host callbacks)

  2325. 

  2326.     @pyqtSlot(int, int, int, int)

  2327.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2328.         if pluginId in self.fSelectedPlugins:

  2329.             self.ui.keyboard.sendNoteOn(note, False)

  2330. 

  2331.     @pyqtSlot(int, int, int)

  2332.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2333.         if pluginId in self.fSelectedPlugins:

  2334.             self.ui.keyboard.sendNoteOff(note, False)

  2335. 

  2336.     # --------------------------------------------------------------------------------------------------------

  2337. 

  2338.     @pyqtSlot(int)

  2339.     def slot_handleUpdateCallback(self, pluginId):

  2340.         pitem = self.getPluginItem(pluginId)

  2341. 

  2342.         if pitem is None:

  2343.             return

  2344. 

  2345.         wasCompacted = pitem.isCompacted()

  2346.         isCompacted  = wasCompacted

  2347. 

  2348.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2349.         if not check:

  2350.             return

  2351.         isCompacted = bool(check == "true")

  2352. 

  2353.         if wasCompacted == isCompacted:

  2354.             return

  2355. 

  2356.         pitem.recreateWidget(True)

  2357. 

  2358.     # --------------------------------------------------------------------------------------------------------

  2359.     # MiniCanvas stuff

  2360. 

  2361.     @pyqtSlot()

  2362.     def slot_miniCanvasCheckAll(self):

  2363.         self.slot_miniCanvasCheckSize()

  2364.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2365.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2366. 

  2367.     @pyqtSlot()

  2368.     def slot_miniCanvasCheckSize(self):

  2369.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2370.             return

  2371. 

  2372.         currentIndex = self.ui.tabWidget.currentIndex()

  2373. 

  2374.         if currentIndex == 1:

  2375.             width  = self.ui.graphicsView.width()

  2376.             height = self.ui.graphicsView.height()

  2377.         else:

  2378.             self.ui.tabWidget.blockSignals(True)

  2379.             self.ui.tabWidget.setCurrentIndex(1)

  2380.             width  = self.ui.graphicsView.width()

  2381.             height = self.ui.graphicsView.height()

  2382.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2383.             self.ui.tabWidget.blockSignals(False)

  2384. 

  2385.         self.scene.updateLimits()

  2386. 

  2387.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2388. 

  2389.     @pyqtSlot(float, float)

  2390.     def slot_miniCanvasMoved(self, xp, yp):

  2391.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2392.         vsb = self.ui.graphicsView.verticalScrollBar()

  2393.         hsb.setValue(xp * hsb.maximum())

  2394.         vsb.setValue(yp * vsb.maximum())

  2395.         self.updateCanvasInitialPos()

  2396. 

  2397.     # --------------------------------------------------------------------------------------------------------

  2398.     # Logs autoscroll, save and clear

  2399. 

  2400.     @pyqtSlot(int)

  2401.     def slot_toggleLogAutoscroll(self, checkState):

  2402.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2403.         if self.autoscrollOnNewLog:

  2404.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2405. 

  2406.     @pyqtSlot(int)

  2407.     def slot_logSliderMoved(self, slider_pos):

  2408.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2409.             self.lastLogSliderPos = slider_pos

  2410.         else:

  2411.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2412. 

  2413.     @pyqtSlot()

  2414.     def slot_logButtonsState(self, enabled=True):

  2415.         self.ui.logs_clear.setEnabled(enabled)

  2416.         self.ui.logs_save.setEnabled(enabled)

  2417. 

  2418.     @pyqtSlot()

  2419.     def slot_logSave(self):

  2420.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2421.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2422. 

  2423.         if not filename:

  2424.             return

  2425. 

  2426.         try:

  2427.             with open(filename, "w") as logfile:

  2428.                 logfile.write(self.ui.text_logs.toPlainText())

  2429.                 logfile.close()

  2430.         except:

  2431.             return

  2432. 

  2433.     @pyqtSlot()

  2434.     def slot_logClear(self):

  2435.         self.ui.text_logs.clear()

  2436.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2437.         self.slot_logButtonsState(False)

  2438. 

  2439.     # --------------------------------------------------------------------------------------------------------

  2440.     # Timers

  2441. 

  2442.     def startTimers(self):

  2443.         if self.fIdleTimerFast == 0:

  2444.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2445. 

  2446.         if self.fIdleTimerSlow == 0:

  2447.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2448. 

  2449.     def restartTimersIfNeeded(self):

  2450.         if self.fIdleTimerFast != 0:

  2451.             self.killTimer(self.fIdleTimerFast)

  2452.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2453. 

  2454.         if self.fIdleTimerSlow != 0:

  2455.             self.killTimer(self.fIdleTimerSlow)

  2456.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2457. 

  2458.     def killTimers(self):

  2459.         if self.fIdleTimerFast != 0:

  2460.             self.killTimer(self.fIdleTimerFast)

  2461.             self.fIdleTimerFast = 0

  2462. 

  2463.         if self.fIdleTimerSlow != 0:

  2464.             self.killTimer(self.fIdleTimerSlow)

  2465.             self.fIdleTimerSlow = 0

  2466. 

  2467.     # --------------------------------------------------------------------------------------------------------

  2468.     # Misc

  2469. 

  2470.     @pyqtSlot(int)

  2471.     def slot_tabChanged(self, index):

  2472.         if index != 1:

  2473.             return

  2474. 

  2475.         self.ui.graphicsView.setFocus()

  2476. 

  2477.     @pyqtSlot(int)

  2478.     def slot_handleReloadAllCallback(self, pluginId):

  2479.         if pluginId >= self.fPluginCount:

  2480.             return

  2481. 

  2482.         pitem = self.fPluginList[pluginId]

  2483.         if pitem is None:

  2484.             return

  2485. 

  2486.         pitem.recreateWidget()

  2487. 

  2488.     # --------------------------------------------------------------------------------------------------------

  2489. 

  2490.     @pyqtSlot(int, int, str)

  2491.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2492.         if opcode == NSM_CALLBACK_INIT:

  2493.             return

  2494. 

  2495.         # Error

  2496.         elif opcode == NSM_CALLBACK_ERROR:

  2497.             pass

  2498. 

  2499.         # Reply

  2500.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2501.             self.fFirstEngineInit    = False

  2502.             self.fSessionManagerName = valueStr

  2503.             self.setProperWindowTitle()

  2504. 

  2505.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2506.             if (valueInt & (1 << 1)) == 0x0:

  2507.                 self.fWindowCloseHideGui = False

  2508.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2509.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2510.                 self.show()

  2511. 

  2512.         # Open

  2513.         elif opcode == NSM_CALLBACK_OPEN:

  2514.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2515.             self.setProperWindowTitle()

  2516. 

  2517.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2518.             self.slot_engineStop(True)

  2519.             return

  2520. 

  2521.         # Save

  2522.         elif opcode == NSM_CALLBACK_SAVE:

  2523.             self.saveProjectNow()

  2524. 

  2525.         # Session is Loaded

  2526.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2527.             pass

  2528. 

  2529.         # Show Optional Gui

  2530.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2531.             self.show()

  2532. 

  2533.         # Hide Optional Gui

  2534.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2535.             self.hideForNSM()

  2536. 

  2537.         # Set client name

  2538.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2539.             self.fClientName = valueStr

  2540.             return

  2541. 

  2542.         self.host.nsm_ready(opcode)

  2543. 

  2544.     # --------------------------------------------------------------------------------------------------------

  2545. 

  2546.     def fixLogText(self, text):

  2547.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2548. 

  2549.     @pyqtSlot(int, int, int, int, float, str)

  2550.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2551.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2552. 

  2553.     @pyqtSlot(str)

  2554.     def slot_handleInfoCallback(self, info):

  2555.         QMessageBox.information(self, "Information", info)

  2556. 

  2557.     @pyqtSlot(str)

  2558.     def slot_handleErrorCallback(self, error):

  2559.         QMessageBox.critical(self, "Error", error)

  2560. 

  2561.     @pyqtSlot()

  2562.     def slot_handleQuitCallback(self):

  2563.         self.fIsProjectLoading = False

  2564.         self.killTimers()

  2565.         self.removeAllPlugins()

  2566.         self.projectLoadingFinished(False)

  2567. 

  2568.     @pyqtSlot(int)

  2569.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2570.         # FIXME

  2571.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2572.             patchcanvas.redrawPluginGroup(pluginId)

  2573. 

  2574.     # --------------------------------------------------------------------------------------------------------

  2575. 

  2576.     @pyqtSlot()

  2577.     def slot_handleSIGUSR1(self):

  2578.         print("Got SIGUSR1 -> Saving project now")

  2579.         self.slot_fileSave()

  2580. 

  2581.     @pyqtSlot()

  2582.     def slot_handleSIGTERM(self):

  2583.         print("Got SIGTERM -> Closing now")

  2584.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2585.         self.close()

  2586. 

  2587.     # --------------------------------------------------------------------------------------------------------

  2588.     # Internal stuff

  2589. 

  2590.     def getExtraPtr(self, plugin):

  2591.         ptype = plugin['type']

  2592. 

  2593.         if ptype == PLUGIN_LADSPA:

  2594.             uniqueId = plugin['uniqueId']

  2595. 

  2596.             self.maybeLoadRDFs()

  2597. 

  2598.             for rdfItem in self.fLadspaRdfList:

  2599.                 if rdfItem.UniqueID == uniqueId:

  2600.                     return pointer(rdfItem)

  2601. 

  2602.         elif ptype == PLUGIN_SF2:

  2603.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2604.                 return self._true

  2605. 

  2606.         return None

  2607. 

  2608.     def maybeLoadRDFs(self):

  2609.         if not self.fLadspaRdfNeedsUpdate:

  2610.             return

  2611. 

  2612.         self.fLadspaRdfNeedsUpdate = False

  2613.         self.fLadspaRdfList = []

  2614. 

  2615.         if not haveLRDF:

  2616.             return

  2617. 

  2618.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2619.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2620. 

  2621.         if os.path.exists(frLadspaFile):

  2622.             frLadspa = open(frLadspaFile, 'r')

  2623. 

  2624.             try:

  2625.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2626.             except:

  2627.                 pass

  2628. 

  2629.             frLadspa.close()

  2630. 

  2631.     # --------------------------------------------------------------------------------------------------------

  2632. 

  2633.     def getPluginCount(self):

  2634.         return self.fPluginCount

  2635. 

  2636.     def getPluginItem(self, pluginId):

  2637.         if pluginId >= self.fPluginCount:

  2638.             return None

  2639. 

  2640.         pitem = self.fPluginList[pluginId]

  2641.         if pitem is None:

  2642.             return None

  2643.         #if False:

  2644.             #return CarlaRackItem(self, 0, False)

  2645. 

  2646.         return pitem

  2647. 

  2648.     def getPluginEditDialog(self, pluginId):

  2649.         if pluginId >= self.fPluginCount:

  2650.             return None

  2651. 

  2652.         pitem = self.fPluginList[pluginId]

  2653.         if pitem is None:

  2654.             return None

  2655.         if False:

  2656.             return PluginEdit(self, self.host, 0)

  2657. 

  2658.         return pitem.getEditDialog()

  2659. 

  2660.     def getPluginSlotWidget(self, pluginId):

  2661.         if pluginId >= self.fPluginCount:

  2662.             return None

  2663. 

  2664.         pitem = self.fPluginList[pluginId]

  2665.         if pitem is None:

  2666.             return None

  2667.         #if False:

  2668.             #return AbstractPluginSlot()

  2669. 

  2670.         return pitem.getWidget()

  2671. 

  2672.     # --------------------------------------------------------------------------------------------------------

  2673. 

  2674.     def waitForPendingEvents(self):

  2675.         pass

  2676. 

  2677.     # --------------------------------------------------------------------------------------------------------

  2678.     # show/hide event

  2679. 

  2680.     def showEvent(self, event):

  2681.         self.getAndRefreshRuntimeInfo()

  2682.         self.refreshTransport(True)

  2683.         QMainWindow.showEvent(self, event)

  2684. 

  2685.         if QT_VERSION >= 0x50600:

  2686.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2687.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2688. 

  2689.         # set our gui as parent for all plugins UIs

  2690.         if self.host.manageUIs and not self.host.isControl:

  2691.             if MACOS:

  2692.                 nsViewPtr = int(self.winId())

  2693.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2694.             else:

  2695.                 winIdStr = "%x" % int(self.winId())

  2696.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2697. 

  2698.     def hideEvent(self, event):

  2699.         # disable parent

  2700.         if not self.host.isControl:

  2701.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2702. 

  2703.         QMainWindow.hideEvent(self, event)

  2704. 

  2705.     # --------------------------------------------------------------------------------------------------------

  2706.     # resize event

  2707. 

  2708.     def resizeEvent(self, event):

  2709.         QMainWindow.resizeEvent(self, event)

  2710. 

  2711.         if self.fWithCanvas:

  2712.             self.slot_miniCanvasCheckSize()

  2713. 

  2714.     # --------------------------------------------------------------------------------------------------------

  2715.     # timer event

  2716. 

  2717.     def refreshRuntimeInfo(self, load, xruns):

  2718.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2719.         txt2 = "" if (xruns == 1) else "s"

  2720.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2721.         self.ui.pb_dsp_load.setValue(int(load))

  2722. 

  2723.     def getAndRefreshRuntimeInfo(self):

  2724.         if not self.ui.pb_dsp_load.isVisible():

  2725.             return

  2726.         if not self.host.is_engine_running():

  2727.             return

  2728.         info = self.host.get_runtime_engine_info()

  2729.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2730. 

  2731.     def idleFast(self):

  2732.         self.host.engine_idle()

  2733.         self.refreshTransport()

  2734. 

  2735.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2736.             return

  2737. 

  2738.         for pitem in self.fPluginList:

  2739.             if pitem is None:

  2740.                 break

  2741. 

  2742.             pitem.getWidget().idleFast()

  2743. 

  2744.         for pluginId in self.fSelectedPlugins:

  2745.             self.fPeaksCleared = False

  2746.             if self.ui.peak_in.isVisible():

  2747.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2748.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2749.             if self.ui.peak_out.isVisible():

  2750.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2751.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2752.             return

  2753. 

  2754.         if self.fPeaksCleared:

  2755.             return

  2756. 

  2757.         self.fPeaksCleared = True

  2758.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2759.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2760.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2761.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2762. 

  2763.     def idleSlow(self):

  2764.         self.getAndRefreshRuntimeInfo()

  2765. 

  2766.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2767.             return

  2768. 

  2769.         for pitem in self.fPluginList:

  2770.             if pitem is None:

  2771.                 break

  2772. 

  2773.             pitem.getWidget().idleSlow()

  2774. 

  2775.     def timerEvent(self, event):

  2776.         if event.timerId() == self.fIdleTimerFast:

  2777.             self.idleFast()

  2778. 

  2779.         elif event.timerId() == self.fIdleTimerSlow:

  2780.             self.idleSlow()

  2781. 

  2782.         QMainWindow.timerEvent(self, event)

  2783. 

  2784.     # --------------------------------------------------------------------------------------------------------

  2785.     # color/style change event

  2786. 

  2787.     def changeEvent(self, event):

  2788.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2789.             self.updateStyle()

  2790.         QMainWindow.changeEvent(self, event)

  2791. 

  2792.     def updateStyle(self):

  2793.         # Rack padding images setup

  2794.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2795.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2796. 

  2797.         min_value = 0.07

  2798. 

  2799.         if PYQT_VERSION >= 0x50600:

  2800.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2801.         else:

  2802.             value_fix = 1.5

  2803. 

  2804.         rack_pal = self.ui.rack.palette()

  2805.         bg_color = rack_pal.window().color()

  2806.         fg_color = rack_pal.text().color()

  2807.         bg_value = 1.0 - bg_color.blackF()

  2808.         if bg_value != 0.0 and bg_value < min_value:

  2809.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2810.         else:

  2811.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2812. 

  2813.         painter = QPainter()

  2814.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2815. 

  2816.         painter.begin(rack_imgL)

  2817.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2818.         painter.setBrush(pad_color)

  2819.         painter.drawRect(fillRect)

  2820.         painter.end()

  2821.         rack_pixmapL = QPixmap(rack_imgL)

  2822.         self.imgL_palette = QPalette()

  2823.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2824.         self.ui.pad_left.setPalette(self.imgL_palette)

  2825.         self.ui.pad_left.setAutoFillBackground(True)

  2826. 

  2827.         painter.begin(rack_imgR)

  2828.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2829.         painter.setBrush(pad_color)

  2830.         painter.drawRect(fillRect)

  2831.         painter.end()

  2832.         rack_pixmapR = QPixmap(rack_imgR)

  2833.         self.imgR_palette = QPalette()

  2834.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2835.         self.ui.pad_right.setPalette(self.imgR_palette)

  2836.         self.ui.pad_right.setAutoFillBackground(True)

  2837. 

  2838.         # qt's rgba is actually argb, so convert that

  2839.         bg_color_value = bg_color.rgba()

  2840.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2841. 

  2842.         fg_color_value = fg_color.rgba()

  2843.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2844. 

  2845.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2846.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2847. 

  2848.     # --------------------------------------------------------------------------------------------------------

  2849.     # paint event

  2850. 

  2851.     #def paintEvent(self, event):

  2852.         #QMainWindow.paintEvent(self, event)

  2853. 

  2854.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2855.             #return

  2856. 

  2857.         #painter = QPainter(self)

  2858.         #painter.setBrush(QColor(36, 36, 36))

  2859.         #painter.setPen(QColor(62, 62, 62))

  2860.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2861. 

  2862.     # --------------------------------------------------------------------------------------------------------

  2863.     # close event

  2864. 

  2865.     def shouldIgnoreClose(self):

  2866.         if self.host.isControl or self.host.isPlugin:

  2867.             return False

  2868.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2869.             return False

  2870.         if self.fWindowCloseHideGui:

  2871.             return False

  2872.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2873.             return QMessageBox.question(self, self.tr("Quit"),

  2874.                                               self.tr("Are you sure you want to quit Carla?"),

  2875.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2876.         return False

  2877. 

  2878.     def closeEvent(self, event):

  2879.         if self.shouldIgnoreClose():

  2880.             event.ignore()

  2881.             return

  2882. 

  2883.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2884.             self.hideForNSM()

  2885.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2886.             return

  2887. 

  2888.         patchcanvas.handleAllPluginsRemoved()

  2889. 

  2890.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2891.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2892.             self.fMacClosingHelper = False

  2893.             event.ignore()

  2894. 

  2895.             for i in reversed(range(self.fPluginCount)):

  2896.                 self.host.show_custom_ui(i, False)

  2897. 

  2898.             QTimer.singleShot(100, self.close)

  2899.             return

  2900. 

  2901.         self.killTimers()

  2902.         self.saveSettings()

  2903. 

  2904.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2905.             if not self.slot_engineStop(True):

  2906.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2907.                 event.ignore()

  2908.                 return

  2909. 

  2910.         QMainWindow.closeEvent(self, event)

  2911. 

  2912.         # if we reach this point, fully close ourselves

  2913.         gCarla.gui = None

  2914.         QApplication.instance().quit()

  2915. 

  2916. # ------------------------------------------------------------------------------------------------

  2917. # Canvas callback

  2918. 

  2919. def canvasCallback(action, value1, value2, valueStr):

  2920.     host = gCarla.gui.host

  2921. 

  2922.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2923.         return

  2924. 

  2925.     if action == patchcanvas.ACTION_GROUP_INFO:

  2926.         pass

  2927. 

  2928.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2929.         pass

  2930. 

  2931.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2932.         groupId = value1

  2933.         patchcanvas.splitGroup(groupId)

  2934.         gCarla.gui.updateMiniCanvasLater()

  2935. 

  2936.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2937.         groupId = value1

  2938.         patchcanvas.joinGroup(groupId)

  2939.         gCarla.gui.updateMiniCanvasLater()

  2940. 

  2941.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2942.         if gCarla.gui.fIsProjectLoading:

  2943.             return

  2944.         if not host.is_engine_running():

  2945.             return

  2946.         groupId = value1

  2947.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2948.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2949.         gCarla.gui.updateMiniCanvasLater()

  2950. 

  2951.     elif action == patchcanvas.ACTION_PORT_INFO:

  2952.         pass

  2953. 

  2954.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2955.         pass

  2956. 

  2957.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2958.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2959. 

  2960.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2961.             print("Connection failed:", host.get_last_error())

  2962. 

  2963.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2964.         connectionId = value1

  2965. 

  2966.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2967.             print("Disconnect failed:", host.get_last_error())

  2968. 

  2969.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2970.         pluginId = value1

  2971. 

  2972.         if not host.clone_plugin(pluginId):

  2973.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2974.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2975. 

  2976.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2977.         pluginId = value1

  2978.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2979. 

  2980.         if pwidget is not None:

  2981.             pwidget.showEditDialog()

  2982. 

  2983.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2984.         pluginId = value1

  2985.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2986. 

  2987.         if pwidget is not None:

  2988.             pwidget.showRenameDialog()

  2989. 

  2990.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2991.         pluginId = value1

  2992.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2993. 

  2994.         if pwidget is not None:

  2995.             pwidget.showReplaceDialog()

  2996. 

  2997.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2998.         pluginId = value1

  2999. 

  3000.         if not host.remove_plugin(pluginId):

  3001.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3002.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3003. 

  3004.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  3005.         pluginId = value1

  3006.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3007. 

  3008.         if pwidget is not None:

  3009.             pwidget.showCustomUI()

  3010. 

  3011.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  3012.         gCarla.gui.slot_showPluginActionsMenu()

  3013. 

  3014.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  3015.         if gCarla.gui.fIsProjectLoading:

  3016.             return

  3017.         if not host.is_engine_running():

  3018.             return

  3019.         pluginId = value1

  3020.         width, height = [int(v) for v in valueStr.split(":")]

  3021.         return host.render_inline_display(pluginId, width, height)

  3022. 

  3023. # ------------------------------------------------------------------------------------------------------------

  3024. # Engine callback

  3025. 

  3026. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3027.     # kdevelop likes this :)

  3028.     if False: host = CarlaHostNull()

  3029. 

  3030.     valueStr = charPtrToString(valueStr)

  3031. 

  3032.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3033.         host.processMode   = value1

  3034.         host.transportMode = value2

  3035.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3036.         host.processMode   = value1

  3037.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3038.         host.transportMode  = value1

  3039.         host.transportExtra = valueStr

  3040. 

  3041.     if action == ENGINE_CALLBACK_DEBUG:

  3042.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3043.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3044.         host.PluginAddedCallback.emit(pluginId, valueStr)

  3045.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3046.         host.PluginRemovedCallback.emit(pluginId)

  3047.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3048.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3049.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3050.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3051.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3052.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3053.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3054.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3055.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3056.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3057.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3058.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3059.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3060.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3061.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3062.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3063.         host.ProgramChangedCallback.emit(pluginId, value1)

  3064.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3065.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3066.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3067.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3068.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3069.         host.UiStateChangedCallback.emit(pluginId, value1)

  3070.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3071.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3072.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3073.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3074.     elif action == ENGINE_CALLBACK_UPDATE:

  3075.         host.UpdateCallback.emit(pluginId)

  3076.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3077.         host.ReloadInfoCallback.emit(pluginId)

  3078.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3079.         host.ReloadParametersCallback.emit(pluginId)

  3080.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3081.         host.ReloadProgramsCallback.emit(pluginId)

  3082.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3083.         host.ReloadAllCallback.emit(pluginId)

  3084.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3085.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3086.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3087.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3088.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3089.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3090.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3091.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3092.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3093.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3094.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3095.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3096.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3097.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3098.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3099.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3100.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3101.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3102.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3103.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3104.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3105.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3106.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3107.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3108.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3109.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3110.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3111.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3112.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3113.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3114.         host.EngineStoppedCallback.emit()

  3115.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3116.         host.ProcessModeChangedCallback.emit(value1)

  3117.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3118.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3119.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3120.         host.BufferSizeChangedCallback.emit(value1)

  3121.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3122.         host.SampleRateChangedCallback.emit(valuef)

  3123.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3124.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3125.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3126.         host.ProjectLoadFinishedCallback.emit()

  3127.     elif action == ENGINE_CALLBACK_NSM:

  3128.         host.NSMCallback.emit(value1, value2, valueStr)

  3129.     elif action == ENGINE_CALLBACK_IDLE:

  3130.         QApplication.processEvents()

  3131.     elif action == ENGINE_CALLBACK_INFO:

  3132.         host.InfoCallback.emit(valueStr)

  3133.     elif action == ENGINE_CALLBACK_ERROR:

  3134.         host.ErrorCallback.emit(valueStr)

  3135.     elif action == ENGINE_CALLBACK_QUIT:

  3136.         host.QuitCallback.emit()

  3137.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3138.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3139.     else:

  3140.         print("unhandled action", action)

  3141. 

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

  3143. # File callback

  3144. 

  3145. def fileCallback(ptr, action, isDir, title, filter):

  3146.     title  = charPtrToString(title)

  3147.     filter = charPtrToString(filter)

  3148. 

  3149.     if action == FILE_CALLBACK_OPEN:

  3150.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3151.     elif action == FILE_CALLBACK_SAVE:

  3152.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3153.     else:

  3154.         ret, ok = ("", "")

  3155. 

  3156.     # FIXME use ok value, test if it works as expected

  3157.     if not ret:

  3158.         return None

  3159. 

  3160.     # FIXME

  3161.     global fileRet

  3162.     fileRet = c_char_p(ret.encode("utf-8"))

  3163.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3164.     return retval.contents.value

  3165. 

  3166. # ------------------------------------------------------------------------------------------------------------

  3167. # Init host

  3168. 

  3169. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3170.     pathBinaries, pathResources = getPaths(libPrefix)

  3171. 

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

  3173.     # Fail if binary dir is not found

  3174. 

  3175.     if not os.path.exists(pathBinaries):

  3176.         if failError:

  3177.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3178.             sys.exit(1)

  3179.         return

  3180. 

  3181.     # --------------------------------------------------------------------------------------------------------

  3182.     # Check if we should open main lib as local or global

  3183. 

  3184.     settings = QSafeSettings("falkTX", "Carla2")

  3185. 

  3186.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3187. 

  3188.     # --------------------------------------------------------------------------------------------------------

  3189.     # Set Carla library name

  3190. 

  3191.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3192.     libname   = os.path.join(pathBinaries, libname)

  3193.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3194. 

  3195.     # --------------------------------------------------------------------------------------------------------

  3196.     # Print info

  3197. 

  3198.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3199.         print("Carla %s started, status:" % VERSION)

  3200.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3201.         print("  Qt version:     %s" % QT_VERSION_STR)

  3202.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3203.         print("  Binary dir:     %s" % pathBinaries)

  3204.         print("  Resources dir:  %s" % pathResources)

  3205. 

  3206.     # --------------------------------------------------------------------------------------------------------

  3207.     # Init host

  3208. 

  3209.     if failError:

  3210.         # no try

  3211.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3212.     else:

  3213.         try:

  3214.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3215.         except:

  3216.             host = CarlaHostQtNull()

  3217. 

  3218.     host.isControl = isControl

  3219.     host.isPlugin  = isPlugin

  3220. 

  3221.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3222.     host.set_file_callback(fileCallback)

  3223. 

  3224.     # If it's a plugin the paths are already set

  3225.     if not isPlugin:

  3226.         host.pathBinaries  = pathBinaries

  3227.         host.pathResources = pathResources

  3228.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3229.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3230. 

  3231.         if not isControl:

  3232.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3233. 

  3234.     # --------------------------------------------------------------------------------------------------------

  3235.     # Init utils

  3236. 

  3237.     gCarla.utils = CarlaUtils(utilsname)

  3238.     gCarla.utils.set_process_name(os.path.basename(initName))

  3239. 

  3240.     try:

  3241.         sys.stdout.flush()

  3242.     except:

  3243.         pass

  3244. 

  3245.     sys.stdout = CarlaPrint(False)

  3246.     sys.stderr = CarlaPrint(True)

  3247.     sys.excepthook = sys_excepthook

  3248. 

  3249.     # --------------------------------------------------------------------------------------------------------

  3250.     # Done

  3251. 

  3252.     return host

  3253. 

  3254. # ------------------------------------------------------------------------------------------------------------

  3255. # Load host settings

  3256. 

  3257. def loadHostSettings(host):

  3258.     # kdevelop likes this :)

  3259.     if False: host = CarlaHostNull()

  3260. 

  3261.     settings = QSafeSettings("falkTX", "Carla2")

  3262. 

  3263.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3264.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3265.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3266.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3267.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3268.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3269.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3270.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3271.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3272.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3273.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3274.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3275.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3276.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3277. 

  3278.     if host.isPlugin:

  3279.         return

  3280. 

  3281.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3282. 

  3283.     # enums

  3284.     if host.audioDriverForced is None:

  3285.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3286. 

  3287.     if not host.processModeForced:

  3288.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3289. 

  3290.     host.nextProcessMode = host.processMode

  3291. 

  3292.     # --------------------------------------------------------------------------------------------------------

  3293.     # fix things if needed

  3294. 

  3295.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3296.         if LADISH_APP_NAME:

  3297.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3298.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3299. 

  3300.         else:

  3301.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3302. 

  3303.     if gCarla.nogui:

  3304.         host.showLogs = False

  3305. 

  3306.     # --------------------------------------------------------------------------------------------------------

  3307.     # run headless host now if nogui option enabled

  3308. 

  3309.     if gCarla.nogui:

  3310.         runHostWithoutUI(host)

  3311. 

  3312. # ------------------------------------------------------------------------------------------------------------

  3313. # Set host settings

  3314. 

  3315. def setHostSettings(host):

  3316.     # kdevelop likes this :)

  3317.     if False: host = CarlaHostNull()

  3318. 

  3319.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3320.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3321.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3322.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3323.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3324.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3325.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3326.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3327. 

  3328.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3329.         return

  3330. 

  3331.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3332.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3333.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3334. 

  3335.     if not (NSM_URL and host.nsmOK):

  3336.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3337. 

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

  3339. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3340. 

  3341. def setEngineSettings(host, oscPort = None):

  3342.     # kdevelop likes this :)

  3343.     if False: host = CarlaHostNull()

  3344. 

  3345.     # --------------------------------------------------------------------------------------------------------

  3346.     # do nothing if control

  3347. 

  3348.     if host.isControl:

  3349.         return "Control"

  3350. 

  3351.     # --------------------------------------------------------------------------------------------------------

  3352. 

  3353.     settings = QSafeSettings("falkTX", "Carla2")

  3354. 

  3355.     # --------------------------------------------------------------------------------------------------------

  3356.     # main settings

  3357. 

  3358.     setHostSettings(host)

  3359. 

  3360.     # --------------------------------------------------------------------------------------------------------

  3361.     # file paths

  3362. 

  3363.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3364.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3365. 

  3366.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3367.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3368. 

  3369.     # --------------------------------------------------------------------------------------------------------

  3370.     # plugin paths

  3371. 

  3372.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3373.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3374.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3375.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3376.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3377.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3378.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3379. 

  3380.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3381.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3382.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3383.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3384.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3385.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3386.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3387. 

  3388.     # --------------------------------------------------------------------------------------------------------

  3389.     # don't continue if plugin

  3390. 

  3391.     if host.isPlugin:

  3392.         return "Plugin"

  3393. 

  3394.     # --------------------------------------------------------------------------------------------------------

  3395.     # osc settings

  3396. 

  3397.     if oscPort is not None and isinstance(oscPort, int):

  3398.         oscEnabled = True

  3399.         portNumTCP = portNumUDP = oscPort

  3400. 

  3401.     else:

  3402.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3403. 

  3404.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3405.             portNumTCP = -1

  3406.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3407.             portNumTCP = 0

  3408.         else:

  3409.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3410. 

  3411.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3412.             portNumUDP = -1

  3413.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3414.             portNumUDP = 0

  3415.         else:

  3416.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3417. 

  3418.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3419.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3420.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3421. 

  3422.     # --------------------------------------------------------------------------------------------------------

  3423.     # wine settings

  3424. 

  3425.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3426.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3427.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3428.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3429.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3430.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3431. 

  3432.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3433.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3434.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3435.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3436.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3437.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3438. 

  3439.     # --------------------------------------------------------------------------------------------------------

  3440.     # driver and device settings

  3441. 

  3442.     # driver name

  3443.     if host.audioDriverForced is not None:

  3444.         audioDriver = host.audioDriverForced

  3445.     else:

  3446.         try:

  3447.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3448.         except:

  3449.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3450. 

  3451.     # driver options

  3452.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3453.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3454.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3455.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3456. 

  3457.     # Only setup audio things if engine is not running

  3458.     if not host.is_engine_running():

  3459.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3460.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3461. 

  3462.         if not audioDriver.startswith("JACK"):

  3463.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3464.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3465.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3466. 

  3467.     # --------------------------------------------------------------------------------------------------------

  3468.     # fix things if needed

  3469. 

  3470.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3471.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3472.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3473. 

  3474.     # --------------------------------------------------------------------------------------------------------

  3475.     # return selected driver name

  3476. 

  3477.     return audioDriver

  3478. 

  3479. # ------------------------------------------------------------------------------------------------------------

  3480. # Run Carla without showing UI

  3481. 

  3482. def runHostWithoutUI(host):

  3483.     # kdevelop likes this :)

  3484.     if False: host = CarlaHostNull()

  3485. 

  3486.     # --------------------------------------------------------------------------------------------------------

  3487.     # Some initial checks

  3488. 

  3489.     if not gCarla.nogui:

  3490.         return

  3491. 

  3492.     projectFile = getInitialProjectFile(True)

  3493. 

  3494.     if not isinstance(gCarla.nogui, int):

  3495.         oscPort = None

  3496. 

  3497.         if not projectFile:

  3498.             print("Carla no-gui mode can only be used together with a project file.")

  3499.             sys.exit(1)

  3500. 

  3501.     else:

  3502.         oscPort = gCarla.nogui

  3503. 

  3504.     # --------------------------------------------------------------------------------------------------------

  3505.     # Additional imports

  3506. 

  3507.     from time import sleep

  3508. 

  3509.     # --------------------------------------------------------------------------------------------------------

  3510.     # Init engine

  3511. 

  3512.     audioDriver = setEngineSettings(host, oscPort)

  3513.     if not host.engine_init(audioDriver, "Carla"):

  3514.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3515.         sys.exit(1)

  3516. 

  3517.     if projectFile and not host.load_project(projectFile):

  3518.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3519.         host.engine_close()

  3520.         sys.exit(1)

  3521. 

  3522.     # --------------------------------------------------------------------------------------------------------

  3523.     # Idle

  3524. 

  3525.     print("Carla ready!")

  3526. 

  3527.     while host.is_engine_running() and not gCarla.term:

  3528.         host.engine_idle()

  3529.         sleep(0.0333) # 30 Hz

  3530. 

  3531.     # --------------------------------------------------------------------------------------------------------

  3532.     # Stop

  3533. 

  3534.     host.engine_close()

  3535.     sys.exit(0)

  3536. 

  3537. # ------------------------------------------------------------------------------------------------------------