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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2022 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

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

  25. # Imports (ctypes)

  26. 

  27. from ctypes import (

  28.     byref, pointer

  29. )

  30. 

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

  32. # Imports (PyQt5)

  33. 

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

  35. try:

  36.     from PyQt5.Qt import PYQT_VERSION

  37. except ImportError:

  38.     PYQT_VERSION = 0x50600

  39. 

  40. from PyQt5.QtCore import (

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

  42. )

  43. from PyQt5.QtGui import (

  44.     QImage, QImageWriter, QPainter, QPalette, QBrush

  45. )

  46. from PyQt5.QtWidgets import (

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

  48. )

  49. 

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

  51. # Imports (Custom)

  52. 

  53. import ui_carla_host

  54. 

  55. from carla_app import *

  56. from carla_backend_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.         self.fHasLoadedLv2Plugins = False

  169. 

  170.         self.fLastTransportBPM   = 0.0

  171.         self.fLastTransportFrame = 0

  172.         self.fLastTransportState = False

  173.         self.fBufferSize         = 0

  174.         self.fSampleRate         = 0.0

  175.         self.fOscAddressTCP      = ""

  176.         self.fOscAddressUDP      = ""

  177. 

  178.         if MACOS:

  179.             self.fMacClosingHelper = True

  180. 

  181.         # CancelableActionCallback Box

  182.         self.fCancelableActionBox = None

  183. 

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

  185.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  186. 

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

  188.         self.fFirstEngineInit = True

  189. 

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

  191.         self.fSavedSettings = {}

  192. 

  193.         # true if NSM server handles our window management

  194.         self.fWindowCloseHideGui = False

  195. 

  196.         if host.isControl:

  197.             self.fClientName         = "Carla-Control"

  198.             self.fSessionManagerName = "Control"

  199.         elif host.isPlugin:

  200.             self.fClientName         = "Carla-Plugin"

  201.             self.fSessionManagerName = "Plugin"

  202.         elif LADISH_APP_NAME:

  203.             self.fClientName         = LADISH_APP_NAME

  204.             self.fSessionManagerName = "LADISH"

  205.         elif NSM_URL and host.nsmOK:

  206.             self.fClientName         = "Carla.tmp"

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

  208.             self.fWindowCloseHideGui = True

  209.         else:

  210.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  211.             self.fSessionManagerName = ""

  212. 

  213.         # ----------------------------------------------------------------------------------------------------

  214.         # Internal stuff (patchbay)

  215. 

  216.         self.fPeaksCleared = True

  217. 

  218.         self.fExternalPatchbay = False

  219.         self.fSelectedPlugins  = []

  220. 

  221.         self.fCanvasWidth  = 0

  222.         self.fCanvasHeight = 0

  223.         self.fMiniCanvasUpdateTimeout = 0

  224. 

  225.         self.fWithCanvas = withCanvas

  226. 

  227.         # ----------------------------------------------------------------------------------------------------

  228.         # Internal stuff (logs)

  229. 

  230.         self.autoscrollOnNewLog = True

  231.         self.lastLogSliderPos = 0

  232. 

  233.         # ----------------------------------------------------------------------------------------------------

  234.         # Set up GUI (engine stopped)

  235. 

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

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

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

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

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

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

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

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

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

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

  246. 

  247.             if self.host.isControl:

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

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

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

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

  252.             else:

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

  254. 

  255.                 if not withCanvas:

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

  257. 

  258.         else:

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

  260. 

  261.             if WINDOWS:

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

  263. 

  264.         if self.host.isControl:

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

  266.         else:

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

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

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

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

  271. 

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

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

  274. 

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

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

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

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

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

  280. 

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

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

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

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

  285. 

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

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

  288. 

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

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

  291. 

  292.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  310.             self.ui.tw_miniCanvas.hide()

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

  312.             if WINDOWS:

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

  314. 

  315.         # ----------------------------------------------------------------------------------------------------

  316.         # Set up GUI (disk)

  317. 

  318.         exts = gCarla.utils.get_supported_file_extensions()

  319. 

  320.         self.fDirModel = QFileSystemModel(self)

  321.         self.fDirModel.setRootPath(HOME)

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

  323. 

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

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

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

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

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

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

  330. 

  331.         # ----------------------------------------------------------------------------------------------------

  332.         # Set up GUI (transport)

  333. 

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

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

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

  337. 

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

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

  340. 

  341.         if minLabelWidth < labelTimeWidth:

  342.             minLabelWidth = labelTimeWidth

  343.         if minLabelWidth < labelBBTWidth:

  344.             minLabelWidth = labelBBTWidth

  345. 

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

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

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

  349. 

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

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

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

  353. 

  354.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  367. 

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

  369. 

  370.         # ----------------------------------------------------------------------------------------------------

  371.         # Set up GUI (rack)

  372. 

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

  374. 

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

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

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

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

  379. 

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

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

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

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

  384. 

  385.         self.updateStyle()

  386. 

  387.         self.ui.rack.setStyleSheet("""

  388.           CarlaRackList#CarlaRackList {

  389.             background-color: black;

  390.           }

  391.         """)

  392. 

  393.         # ----------------------------------------------------------------------------------------------------

  394.         # Set up GUI (patchbay)

  395. 

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

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

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

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

  400. 

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

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

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

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

  405. 

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

  407.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  409. 

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

  411. 

  412.         self.ui.miniCanvasPreview.setRealParent(self)

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

  414. 

  415.         # ----------------------------------------------------------------------------------------------------

  416.         # Set up GUI (logs)

  417. 

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

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

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

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

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

  423. 

  424.         # ----------------------------------------------------------------------------------------------------

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

  426. 

  427.         if MACOS:

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

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

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

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

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

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

  434. 

  435.         # ----------------------------------------------------------------------------------------------------

  436.         # Load Settings

  437. 

  438.         self.loadSettings(True)

  439. 

  440.         # ----------------------------------------------------------------------------------------------------

  441.         # Set-up Canvas

  442. 

  443.         if withCanvas:

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

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

  446. 

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

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

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

  450. 

  451.             self.setupCanvas()

  452. 

  453.         # ----------------------------------------------------------------------------------------------------

  454.         # Set-up Icons

  455. 

  456.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  486. 

  487.         # ----------------------------------------------------------------------------------------------------

  488.         # Connect actions to functions

  489. 

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

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

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

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

  494. 

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

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

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

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

  499. 

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

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

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

  503. 

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

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

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

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

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

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

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

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

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

  513. 

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

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

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

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

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

  519. 

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

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

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

  523. 

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

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

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

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

  528. 

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

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

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

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

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

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

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

  536. 

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

  538. 

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

  540. 

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

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

  543. 

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

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

  546. 

  547.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  567. 

  568.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  569.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  570. 

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

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

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

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

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

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

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

  578. 

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

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

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

  582. 

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

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

  585. 

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

  587. 

  588.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

  602. 

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

  604. 

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

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

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

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

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

  610. 

  611.         # ----------------------------------------------------------------------------------------------------

  612.         # Final setup

  613. 

  614.         self.ui.text_logs.clear()

  615.         self.slot_logButtonsState(False)

  616.         self.setProperWindowTitle()

  617. 

  618.         # Disable non-supported features

  619.         features = gCarla.utils.get_supported_features()

  620. 

  621.         if "link" not in features:

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

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

  624. 

  625.         if "juce" not in features:

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

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

  628. 

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

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

  631.             self.startTimers()

  632. 

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

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

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

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

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

  638. 

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

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

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

  642. 

  643.         # Load initial project file if set

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

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

  646. 

  647.             if projectFile:

  648.                 self.loadProjectLater(projectFile)

  649. 

  650.         # For NSM we wait for the open message

  651.         if NSM_URL and host.nsmOK:

  652.             host.nsm_ready(NSM_CALLBACK_INIT)

  653.             return

  654. 

  655.         if not host.isControl:

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

  657. 

  658.     # --------------------------------------------------------------------------------------------------------

  659.     # Manage visibility state, needed for NSM

  660. 

  661.     def hideForNSM(self):

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

  663.             if pitem is None:

  664.                 continue

  665.             pitem.getWidget().hideCustomUI()

  666.         self.hide()

  667. 

  668.     def showIfNeeded(self):

  669.         if self.host.nsmOK:

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

  671.             QApplication.instance().setQuitOnLastWindowClosed(False)

  672.         else:

  673.             self.show()

  674. 

  675.     # --------------------------------------------------------------------------------------------------------

  676.     # Setup

  677. 

  678.     def compactPlugin(self, pluginId):

  679.         if pluginId > self.fPluginCount:

  680.             return

  681. 

  682.         pitem = self.fPluginList[pluginId]

  683. 

  684.         if pitem is None:

  685.             return

  686. 

  687.         pitem.recreateWidget(True)

  688. 

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

  690.         if pluginId > self.fPluginCount:

  691.             return

  692. 

  693.         pitem = self.fPluginList[pluginId]

  694. 

  695.         if pitem is None:

  696.             return

  697. 

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

  699.         pitem.recreateWidget(newColor = color)

  700. 

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

  702.         if pluginId > self.fPluginCount:

  703.             return

  704. 

  705.         pitem = self.fPluginList[pluginId]

  706. 

  707.         if pitem is None:

  708.             return

  709. 

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

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

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

  713.         else:

  714.             pitem.recreateWidget(newSkin = skin)

  715. 

  716.     def findPluginInPatchbay(self, pluginId):

  717.         if pluginId > self.fPluginCount:

  718.             return

  719. 

  720.         if self.fExternalPatchbay:

  721.             self.slot_canvasShowInternal()

  722. 

  723.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

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

  725.             if not patchcanvas.focusGroupUsingGroupName(name):

  726.                 return

  727. 

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

  729. 

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

  731.         if pluginIdA == pluginIdB:

  732.             return

  733.         if pluginIdA < 0 or pluginIdB < 0:

  734.             return

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

  736.             return

  737. 

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

  739. 

  740.         itemA = self.fPluginList[pluginIdA]

  741.         compactA = itemA.isCompacted()

  742.         guiShownA = itemA.isGuiShown()

  743. 

  744.         itemB = self.fPluginList[pluginIdB]

  745.         compactB = itemB.isCompacted()

  746.         guiShownB = itemB.isGuiShown()

  747. 

  748.         itemA.setPluginId(pluginIdA)

  749.         itemA.recreateWidget2(compactB, guiShownB)

  750. 

  751.         itemB.setPluginId(pluginIdB)

  752.         itemB.recreateWidget2(compactA, guiShownA)

  753. 

  754.         if self.fWithCanvas:

  755.             self.slot_canvasRefresh()

  756. 

  757.     def setLoadRDFsNeeded(self):

  758.         self.fLadspaRdfNeedsUpdate = True

  759. 

  760.     def setProperWindowTitle(self):

  761.         title = self.fClientName

  762. 

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

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

  765.         if self.fSessionManagerName:

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

  767. 

  768.         self.setWindowTitle(title)

  769. 

  770.     def updateBufferSize(self, newBufferSize):

  771.         if self.fBufferSize == newBufferSize:

  772.             return

  773.         self.fBufferSize = newBufferSize

  774.         self.ui.cb_buffer_size.clear()

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

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

  777. 

  778.     def updateSampleRate(self, newSampleRate):

  779.         if self.fSampleRate == newSampleRate:

  780.             return

  781.         self.fSampleRate = newSampleRate

  782.         self.ui.cb_sample_rate.clear()

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

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

  785.         self.refreshTransport(True)

  786. 

  787.     # --------------------------------------------------------------------------------------------------------

  788.     # Files

  789. 

  790.     def loadProjectNow(self):

  791.         if not self.fProjectFilename:

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

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

  794.             return

  795. 

  796.         self.projectLoadingStarted()

  797.         self.fIsProjectLoading = True

  798. 

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

  800.             self.fIsProjectLoading = False

  801.             self.projectLoadingFinished(True)

  802. 

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

  804.                              self.host.get_last_error(),

  805.                              QMessageBox.Ok, QMessageBox.Ok)

  806. 

  807.     def loadProjectLater(self, filename):

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

  809.         self.setProperWindowTitle()

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

  811. 

  812.     def saveProjectNow(self):

  813.         if not self.fProjectFilename:

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

  815. 

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

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

  818.                              self.host.get_last_error(),

  819.                              QMessageBox.Ok, QMessageBox.Ok)

  820.             return

  821. 

  822.     def projectLoadingStarted(self):

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

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

  825. 

  826.     def projectLoadingFinished(self, refreshCanvas):

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

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

  829. 

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

  831.             return

  832. 

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

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

  835. 

  836.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

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

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

  839.             return False

  840. 

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

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

  843.                 return False

  844. 

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

  846.             try:

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

  848.             except:

  849.                 return False

  850. 

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

  852.         patchcanvas.restoreGroupPositions(canvasdata)

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

  854.         return True

  855. 

  856.     # --------------------------------------------------------------------------------------------------------

  857.     # Files (menu actions)

  858. 

  859.     @pyqtSlot()

  860.     def slot_fileNew(self):

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

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

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

  864.             return

  865. 

  866.         self.pluginRemoveAll()

  867.         self.fProjectFilename = ""

  868.         self.setProperWindowTitle()

  869.         self.host.clear_project_filename()

  870. 

  871.     @pyqtSlot()

  872.     def slot_fileOpen(self):

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

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

  875. 

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

  877.         if not filename:

  878.             return

  879. 

  880.         newFile = True

  881. 

  882.         if self.fPluginCount > 0:

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

  884.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  886. 

  887.         if newFile:

  888.             self.pluginRemoveAll()

  889.             self.fProjectFilename = filename

  890.             self.setProperWindowTitle()

  891.             self.loadProjectNow()

  892.         else:

  893.             filenameOld = self.fProjectFilename

  894.             self.fProjectFilename = filename

  895.             self.loadProjectNow()

  896.             self.fProjectFilename = filenameOld

  897. 

  898.     @pyqtSlot()

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

  900.         if self.fProjectFilename and not saveAs:

  901.             return self.saveProjectNow()

  902. 

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

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

  905. 

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

  907.         if not filename:

  908.             return

  909. 

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

  911.             filename += ".carxp"

  912. 

  913.         if self.fProjectFilename != filename:

  914.             self.fProjectFilename = filename

  915.             self.setProperWindowTitle()

  916. 

  917.         self.saveProjectNow()

  918. 

  919.     @pyqtSlot()

  920.     def slot_fileSaveAs(self):

  921.         self.slot_fileSave(True)

  922. 

  923.     @pyqtSlot()

  924.     def slot_loadProjectNow(self):

  925.         self.loadProjectNow()

  926. 

  927.     # --------------------------------------------------------------------------------------------------------

  928.     # Engine (menu actions)

  929. 

  930.     @pyqtSlot()

  931.     def slot_engineStart(self):

  932.         audioDriver = setEngineSettings(self.host)

  933.         firstInit   = self.fFirstEngineInit

  934. 

  935.         self.fFirstEngineInit = False

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

  937. 

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

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

  940.                 settings = QSafeSettings()

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

  942.                 del settings

  943.                 if lastBpm >= 20.0:

  944.                     self.host.transport_bpm(lastBpm)

  945.             return

  946. 

  947.         elif firstInit:

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

  949.             return

  950. 

  951.         audioError = self.host.get_last_error()

  952. 

  953.         if audioError:

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

  955.         else:

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

  957. 

  958.     @pyqtSlot()

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

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

  961. 

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

  963.             self.engineStopFinal()

  964.             return True

  965. 

  966.         if not forced:

  967.             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"

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

  969.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  970.             if ask != QMessageBox.Yes:

  971.                 return False

  972. 

  973.         return self.slot_engineStopTryAgain()

  974. 

  975.     @pyqtSlot()

  976.     def slot_engineConfig(self):

  977.         engineRunning = self.host.is_engine_running()

  978. 

  979.         if engineRunning:

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

  981. 

  982.         else:

  983.             if self.host.isPlugin:

  984.                 driverName = "Plugin"

  985.                 driverIndex = 0

  986.             elif self.host.audioDriverForced:

  987.                 driverName = self.host.audioDriverForced

  988.                 driverIndex = 0

  989.             else:

  990.                 settings = QSafeSettings()

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

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

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

  994.                         driverIndex = i

  995.                         break

  996.                 else:

  997.                     driverIndex = -1

  998.                 del settings

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

  1000.             dialog.ui.ico_restart.hide()

  1001.             dialog.ui.label_restart.hide()

  1002.             dialog.adjustSize()

  1003. 

  1004.         if not dialog.exec_():

  1005.             return

  1006. 

  1007.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  1008. 

  1009.         if engineRunning:

  1010.             self.host.set_engine_buffer_size_and_sample_rate(bufferSize, sampleRate)

  1011.         else:

  1012.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  1013.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  1014.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  1015. 

  1016.     @pyqtSlot()

  1017.     def slot_engineStopTryAgain(self):

  1018.         if self.host.is_engine_running() and not self.host.set_engine_about_to_close():

  1019.             QTimer.singleShot(0, self.slot_engineStopTryAgain)

  1020.             return False

  1021. 

  1022.         self.engineStopFinal()

  1023.         return True

  1024. 

  1025.     def engineStopFinal(self):

  1026.         patchcanvas.handleAllPluginsRemoved()

  1027.         self.killTimers()

  1028. 

  1029.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1030.             self.removeAllPlugins()

  1031.         else:

  1032.             self.fProjectFilename = ""

  1033.             self.setProperWindowTitle()

  1034.             if self.fPluginCount != 0:

  1035.                 self.fCurrentlyRemovingAllPlugins = True

  1036.                 self.projectLoadingStarted()

  1037. 

  1038.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1039.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1040.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1041. 

  1042.         if not self.host.engine_close():

  1043.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1044.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1045. 

  1046.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1047.             self.close()

  1048.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1049.             self.slot_engineStart()

  1050.             self.loadProjectNow()

  1051.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1052. 

  1053.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1054. 

  1055.     # --------------------------------------------------------------------------------------------------------

  1056.     # Engine (host callbacks)

  1057. 

  1058.     @pyqtSlot(int, int, int, int, float, str)

  1059.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

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

  1061.         self.ui.menu_Canvas.setEnabled(True)

  1062.         self.ui.w_transport.setEnabled(True)

  1063. 

  1064.         self.ui.act_canvas_show_internal.blockSignals(True)

  1065.         self.ui.act_canvas_show_external.blockSignals(True)

  1066. 

  1067.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1068.             self.ui.act_canvas_show_internal.setChecked(True)

  1069.             self.ui.act_canvas_show_internal.setVisible(True)

  1070.             self.ui.act_canvas_show_external.setChecked(False)

  1071.             self.ui.act_canvas_show_external.setVisible(True)

  1072.             self.fExternalPatchbay = False

  1073.         else:

  1074.             self.ui.act_canvas_show_internal.setChecked(False)

  1075.             self.ui.act_canvas_show_internal.setVisible(False)

  1076.             self.ui.act_canvas_show_external.setChecked(True)

  1077.             self.ui.act_canvas_show_external.setVisible(False)

  1078.             self.fExternalPatchbay = not self.host.isPlugin

  1079. 

  1080.         self.ui.act_canvas_show_internal.blockSignals(False)

  1081.         self.ui.act_canvas_show_external.blockSignals(False)

  1082. 

  1083.         if not (self.host.isControl or self.host.isPlugin):

  1084.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1085.             self.ui.act_file_save.setEnabled(canSave)

  1086.             self.ui.act_engine_start.setEnabled(False)

  1087.             self.ui.act_engine_stop.setEnabled(True)

  1088. 

  1089.         if not self.host.isPlugin:

  1090.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1091. 

  1092.         if self.host.isPlugin or not self.fSessionManagerName:

  1093.             self.ui.act_file_open.setEnabled(True)

  1094.             self.ui.act_file_save_as.setEnabled(True)

  1095. 

  1096.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1097.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1098. 

  1099.         if self.ui.cb_transport_link.isEnabled():

  1100.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1101. 

  1102.         self.updateBufferSize(bufferSize)

  1103.         self.updateSampleRate(int(sampleRate))

  1104.         self.refreshRuntimeInfo(0.0, 0)

  1105.         self.startTimers()

  1106. 

  1107.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1108.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1109.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1110.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1111.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1112. 

  1113.     @pyqtSlot()

  1114.     def slot_handleEngineStoppedCallback(self):

  1115.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1116. 

  1117.         if self.fWithCanvas:

  1118.             patchcanvas.clear()

  1119. 

  1120.         self.killTimers()

  1121. 

  1122.         # just in case

  1123.         self.removeAllPlugins()

  1124.         self.refreshRuntimeInfo(0.0, 0)

  1125. 

  1126.         self.ui.menu_PluginMacros.setEnabled(False)

  1127.         self.ui.menu_Canvas.setEnabled(False)

  1128.         self.ui.w_transport.setEnabled(False)

  1129. 

  1130.         if not (self.host.isControl or self.host.isPlugin):

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

  1132.             self.ui.act_engine_start.setEnabled(True)

  1133.             self.ui.act_engine_stop.setEnabled(False)

  1134. 

  1135.         if self.host.isPlugin or not self.fSessionManagerName:

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

  1137.             self.ui.act_file_save_as.setEnabled(False)

  1138. 

  1139.     @pyqtSlot(int, str)

  1140.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1141.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1142. 

  1143.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1144.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1145. 

  1146.     @pyqtSlot(int)

  1147.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1148.         self.updateBufferSize(newBufferSize)

  1149. 

  1150.     @pyqtSlot(float)

  1151.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1152.         self.updateSampleRate(int(newSampleRate))

  1153. 

  1154.     @pyqtSlot(int, bool, str)

  1155.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1156.         if self.fCancelableActionBox is not None:

  1157.             self.fCancelableActionBox.close()

  1158. 

  1159.         if started:

  1160.             self.fCancelableActionBox = QMessageBox(self)

  1161.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1162.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1163.             self.fCancelableActionBox.setText(action)

  1164.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1165.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1166.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1167.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1168.             self.fCancelableActionBox.show()

  1169. 

  1170.         else:

  1171.             self.fCancelableActionBox = None

  1172. 

  1173.     @pyqtSlot()

  1174.     def slot_canlableActionBoxClicked(self):

  1175.         self.host.cancel_engine_action()

  1176. 

  1177.     @pyqtSlot()

  1178.     def slot_handleProjectLoadFinishedCallback(self):

  1179.         self.fIsProjectLoading = False

  1180.         self.projectLoadingFinished(False)

  1181. 

  1182.     # --------------------------------------------------------------------------------------------------------

  1183.     # Plugins

  1184. 

  1185.     def removeAllPlugins(self):

  1186.         self.ui.act_plugin_remove_all.setEnabled(False)

  1187.         patchcanvas.handleAllPluginsRemoved()

  1188. 

  1189.         while self.ui.listWidget.takeItem(0):

  1190.             pass

  1191. 

  1192.         self.clearSideStuff()

  1193. 

  1194.         for pitem in self.fPluginList:

  1195.             if pitem is None:

  1196.                 continue

  1197. 

  1198.             pitem.close()

  1199.             del pitem

  1200. 

  1201.         self.fPluginCount = 0

  1202.         self.fPluginList  = []

  1203. 

  1204.     # --------------------------------------------------------------------------------------------------------

  1205.     # Plugins (menu actions)

  1206. 

  1207.     def showAddPluginDialog(self):

  1208.         if self.fPluginDatabaseDialog is None:

  1209.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host,

  1210.                                                          self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1211.         dialog = self.fPluginDatabaseDialog

  1212.         dialog.hasLoadedLv2Plugins = self.fHasLoadedLv2Plugins

  1213. 

  1214.         ret = dialog.exec_()

  1215. 

  1216.         if dialog.fFavoritePluginsChanged:

  1217.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1218. 

  1219.         if not ret:

  1220.             return

  1221. 

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

  1223.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1224.             return

  1225. 

  1226.         btype    = dialog.fRetPlugin['build']

  1227.         ptype    = dialog.fRetPlugin['type']

  1228.         filename = dialog.fRetPlugin['filename']

  1229.         label    = dialog.fRetPlugin['label']

  1230.         uniqueId = dialog.fRetPlugin['uniqueId']

  1231.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1232. 

  1233.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1234. 

  1235.     def showAddJackAppDialog(self):

  1236.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1237. 

  1238.         if not dialog.exec_():

  1239.             return

  1240. 

  1241.         if not self.host.is_engine_running():

  1242.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1243.             return

  1244. 

  1245.         return dialog.getCommandAndFlags()

  1246. 

  1247.     @pyqtSlot()

  1248.     def slot_favoritePluginAdd(self):

  1249.         plugin = self.sender().data()

  1250. 

  1251.         if plugin is None:

  1252.             return

  1253. 

  1254.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1255.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1256.             # remove plugin from favorites

  1257.             try:

  1258.                 self.fFavoritePlugins.remove(plugin)

  1259.             except ValueError:

  1260.                 pass

  1261.             else:

  1262.                 settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1263.                 settingsDBf.setValue("PluginDatabase/Favorites", self.fFavoritePlugins)

  1264.                 settingsDBf.sync()

  1265.                 del settingsDBf

  1266. 

  1267.             CustomMessageBox(self,

  1268.                              QMessageBox.Critical,

  1269.                              self.tr("Error"),

  1270.                              self.tr("Failed to load plugin"),

  1271.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1272. 

  1273.     @pyqtSlot()

  1274.     def slot_showPluginActionsMenu(self):

  1275.         menu = QMenu(self)

  1276. 

  1277.         menu.addSection("Plugins")

  1278.         menu.addAction(self.ui.act_plugin_add)

  1279. 

  1280.         if len(self.fFavoritePlugins) != 0:

  1281.             fmenu = QMenu("Add from favorites", self)

  1282.             for p in self.fFavoritePlugins:

  1283.                 act = fmenu.addAction(p['name'])

  1284.                 act.setData(p)

  1285.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1286.             menu.addMenu(fmenu)

  1287. 

  1288.         menu.addAction(self.ui.act_plugin_remove_all)

  1289. 

  1290.         menu.addSection("All plugins (macros)")

  1291.         menu.addAction(self.ui.act_plugins_enable)

  1292.         menu.addAction(self.ui.act_plugins_disable)

  1293.         menu.addSeparator()

  1294.         menu.addAction(self.ui.act_plugins_volume100)

  1295.         menu.addAction(self.ui.act_plugins_mute)

  1296.         menu.addSeparator()

  1297.         menu.addAction(self.ui.act_plugins_wet100)

  1298.         menu.addAction(self.ui.act_plugins_bypass)

  1299.         menu.addSeparator()

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

  1301.         menu.addSeparator()

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

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

  1304. 

  1305.         menu.exec_(QCursor.pos())

  1306. 

  1307.     @pyqtSlot()

  1308.     def slot_pluginAdd(self):

  1309.         data = self.showAddPluginDialog()

  1310. 

  1311.         if data is None:

  1312.             return

  1313. 

  1314.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1315. 

  1316.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1317.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1318.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1319. 

  1320.     @pyqtSlot()

  1321.     def slot_confirmRemoveAll(self):

  1322.         if self.fPluginCount == 0:

  1323.             return

  1324. 

  1325.         if QMessageBox.question(self, self.tr("Remove All"),

  1326.                                       self.tr("Are you sure you want to remove all plugins?"),

  1327.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1328.             return

  1329. 

  1330.         self.pluginRemoveAll()

  1331. 

  1332.     def pluginRemoveAll(self):

  1333.         if self.fPluginCount == 0:

  1334.             return

  1335. 

  1336.         self.fCurrentlyRemovingAllPlugins = True

  1337.         self.projectLoadingStarted()

  1338. 

  1339.         if not self.host.remove_all_plugins():

  1340.             self.projectLoadingFinished(True)

  1341.             self.fCurrentlyRemovingAllPlugins = False

  1342.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1343.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1344. 

  1345.     @pyqtSlot()

  1346.     def slot_jackAppAdd(self):

  1347.         data = self.showAddJackAppDialog()

  1348. 

  1349.         if data is None:

  1350.             return

  1351. 

  1352.         filename, name, label = data

  1353. 

  1354.         if not filename:

  1355.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1356.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1357.             return

  1358. 

  1359.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1360.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1361.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1362. 

  1363.     # --------------------------------------------------------------------------------------------------------

  1364.     # Plugins (macros)

  1365. 

  1366.     @pyqtSlot()

  1367.     def slot_pluginsEnable(self):

  1368.         if not self.host.is_engine_running():

  1369.             return

  1370. 

  1371.         for pitem in self.fPluginList:

  1372.             if pitem is None:

  1373.                 break

  1374. 

  1375.             pitem.getWidget().setActive(True, True, True)

  1376. 

  1377.     @pyqtSlot()

  1378.     def slot_pluginsDisable(self):

  1379.         if not self.host.is_engine_running():

  1380.             return

  1381. 

  1382.         for pitem in self.fPluginList:

  1383.             if pitem is None:

  1384.                 break

  1385. 

  1386.             pitem.getWidget().setActive(False, True, True)

  1387. 

  1388.     @pyqtSlot()

  1389.     def slot_pluginsVolume100(self):

  1390.         if not self.host.is_engine_running():

  1391.             return

  1392. 

  1393.         for pitem in self.fPluginList:

  1394.             if pitem is None:

  1395.                 break

  1396. 

  1397.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1398. 

  1399.     @pyqtSlot()

  1400.     def slot_pluginsMute(self):

  1401.         if not self.host.is_engine_running():

  1402.             return

  1403. 

  1404.         for pitem in self.fPluginList:

  1405.             if pitem is None:

  1406.                 break

  1407. 

  1408.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1409. 

  1410.     @pyqtSlot()

  1411.     def slot_pluginsWet100(self):

  1412.         if not self.host.is_engine_running():

  1413.             return

  1414. 

  1415.         for pitem in self.fPluginList:

  1416.             if pitem is None:

  1417.                 break

  1418. 

  1419.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1420. 

  1421.     @pyqtSlot()

  1422.     def slot_pluginsBypass(self):

  1423.         if not self.host.is_engine_running():

  1424.             return

  1425. 

  1426.         for pitem in self.fPluginList:

  1427.             if pitem is None:

  1428.                 break

  1429. 

  1430.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1431. 

  1432.     @pyqtSlot()

  1433.     def slot_pluginsCenter(self):

  1434.         if not self.host.is_engine_running():

  1435.             return

  1436. 

  1437.         for pitem in self.fPluginList:

  1438.             if pitem is None:

  1439.                 break

  1440. 

  1441.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1442.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1443.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1444. 

  1445.     @pyqtSlot()

  1446.     def slot_pluginsCompact(self):

  1447.         for pitem in self.fPluginList:

  1448.             if pitem is None:

  1449.                 break

  1450.             pitem.compact()

  1451. 

  1452.     @pyqtSlot()

  1453.     def slot_pluginsExpand(self):

  1454.         for pitem in self.fPluginList:

  1455.             if pitem is None:

  1456.                 break

  1457.             pitem.expand()

  1458. 

  1459.     # --------------------------------------------------------------------------------------------------------

  1460.     # Plugins (host callbacks)

  1461. 

  1462.     @pyqtSlot(int, int, str)

  1463.     def slot_handlePluginAddedCallback(self, pluginId, pluginType, pluginName):

  1464.         if pluginId != self.fPluginCount:

  1465.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1466.             pitem = self.getPluginItem(pluginId)

  1467.             pitem.recreateWidget()

  1468.             return

  1469. 

  1470.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN])

  1471.         self.fPluginList.append(pitem)

  1472.         self.fPluginCount += 1

  1473. 

  1474.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1475. 

  1476.         if pluginType == PLUGIN_LV2:

  1477.             self.fHasLoadedLv2Plugins = True

  1478. 

  1479.     @pyqtSlot(int)

  1480.     def slot_handlePluginRemovedCallback(self, pluginId):

  1481.         if self.fWithCanvas:

  1482.             patchcanvas.handlePluginRemoved(pluginId)

  1483. 

  1484.         if pluginId in self.fSelectedPlugins:

  1485.             self.clearSideStuff()

  1486. 

  1487.         if self.fPluginCount == 0:

  1488.             return

  1489. 

  1490.         pitem = self.getPluginItem(pluginId)

  1491. 

  1492.         self.fPluginCount -= 1

  1493.         self.fPluginList.pop(pluginId)

  1494.         self.ui.listWidget.takeItem(pluginId)

  1495. 

  1496.         if pitem is not None:

  1497.             pitem.close()

  1498.             del pitem

  1499. 

  1500.         if self.fPluginCount == 0:

  1501.             self.ui.act_plugin_remove_all.setEnabled(False)

  1502.             if self.fCurrentlyRemovingAllPlugins:

  1503.                 self.fCurrentlyRemovingAllPlugins = False

  1504.                 self.projectLoadingFinished(False)

  1505.             return

  1506. 

  1507.         # push all plugins 1 slot back

  1508.         for i in range(pluginId, self.fPluginCount):

  1509.             pitem = self.fPluginList[i]

  1510.             pitem.setPluginId(i)

  1511. 

  1512.         self.ui.act_plugin_remove_all.setEnabled(True)

  1513. 

  1514.     # --------------------------------------------------------------------------------------------------------

  1515.     # Canvas

  1516. 

  1517.     def clearSideStuff(self):

  1518.         if self.fWithCanvas:

  1519.             self.scene.clearSelection()

  1520. 

  1521.         self.fSelectedPlugins = []

  1522. 

  1523.         self.ui.keyboard.allNotesOff(False)

  1524.         self.ui.scrollArea.setEnabled(False)

  1525. 

  1526.         self.fPeaksCleared = True

  1527.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1528.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1529.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1530.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1531. 

  1532.     def setupCanvas(self):

  1533.         pOptions = patchcanvas.options_t()

  1534.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1535.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1536.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1537.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1538.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1539.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1540. 

  1541.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1542.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1543.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1544.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1545.         else:

  1546.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1547. 

  1548.         pFeatures = patchcanvas.features_t()

  1549.         pFeatures.group_info   = False

  1550.         pFeatures.group_rename = False

  1551.         pFeatures.port_info    = False

  1552.         pFeatures.port_rename  = False

  1553.         pFeatures.handle_group_pos = False

  1554. 

  1555.         patchcanvas.setOptions(pOptions)

  1556.         patchcanvas.setFeatures(pFeatures)

  1557.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1558. 

  1559.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1560. 

  1561.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1562.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1563.             self.fCanvasHeight = int(tryCanvasSize[1])

  1564.         else:

  1565.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1566.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1567. 

  1568.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1569.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1570.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1571. 

  1572.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1573.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1574. 

  1575.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1576.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1577. 

  1578.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1579.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1580.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1581. 

  1582.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1583.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1584. 

  1585.         else:

  1586.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1587. 

  1588.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1589.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1590.         else:

  1591.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1592. 

  1593.     def updateCanvasInitialPos(self):

  1594.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1595.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1596.         patchcanvas.setInitialPos(x, y)

  1597. 

  1598.     def updateMiniCanvasLater(self):

  1599.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1600. 

  1601.     # --------------------------------------------------------------------------------------------------------

  1602.     # Canvas (menu actions)

  1603. 

  1604.     @pyqtSlot()

  1605.     def slot_canvasShowInternal(self):

  1606.         self.fExternalPatchbay = False

  1607.         self.ui.act_canvas_show_internal.blockSignals(True)

  1608.         self.ui.act_canvas_show_external.blockSignals(True)

  1609.         self.ui.act_canvas_show_internal.setChecked(True)

  1610.         self.ui.act_canvas_show_external.setChecked(False)

  1611.         self.ui.act_canvas_show_internal.blockSignals(False)

  1612.         self.ui.act_canvas_show_external.blockSignals(False)

  1613.         self.slot_canvasRefresh()

  1614. 

  1615.     @pyqtSlot()

  1616.     def slot_canvasShowExternal(self):

  1617.         self.fExternalPatchbay = True

  1618.         self.ui.act_canvas_show_internal.blockSignals(True)

  1619.         self.ui.act_canvas_show_external.blockSignals(True)

  1620.         self.ui.act_canvas_show_internal.setChecked(False)

  1621.         self.ui.act_canvas_show_external.setChecked(True)

  1622.         self.ui.act_canvas_show_internal.blockSignals(False)

  1623.         self.ui.act_canvas_show_external.blockSignals(False)

  1624.         self.slot_canvasRefresh()

  1625. 

  1626.     @pyqtSlot()

  1627.     def slot_canvasArrange(self):

  1628.         patchcanvas.arrange()

  1629. 

  1630.     @pyqtSlot()

  1631.     def slot_canvasRefresh(self):

  1632.         patchcanvas.clear()

  1633. 

  1634.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1635.             return

  1636. 

  1637.         if self.host.is_engine_running():

  1638.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1639. 

  1640.         self.updateMiniCanvasLater()

  1641. 

  1642.     @pyqtSlot()

  1643.     def slot_canvasZoomFit(self):

  1644.         self.scene.zoom_fit()

  1645. 

  1646.     @pyqtSlot()

  1647.     def slot_canvasZoomIn(self):

  1648.         self.scene.zoom_in()

  1649. 

  1650.     @pyqtSlot()

  1651.     def slot_canvasZoomOut(self):

  1652.         self.scene.zoom_out()

  1653. 

  1654.     @pyqtSlot()

  1655.     def slot_canvasZoomReset(self):

  1656.         self.scene.zoom_reset()

  1657. 

  1658.     def _canvasImageRender(self, zoom = 1.0):

  1659.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1660.         painter = QPainter(image)

  1661.         painter.save()

  1662.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1663.         self.scene.clearSelection()

  1664.         self.scene.render(painter)

  1665.         painter.restore()

  1666.         del painter

  1667.         return image

  1668. 

  1669.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1670.         iw.setFormat(imgFormat)

  1671.         iw.setCompression(-1)

  1672.         if QT_VERSION >= 0x50500:

  1673.             iw.setOptimizedWrite(True)

  1674.         iw.write(image)

  1675. 

  1676.     @pyqtSlot()

  1677.     def slot_canvasSaveImage(self):

  1678.         if self.fProjectFilename:

  1679.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1680.         else:

  1681.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1682. 

  1683.         fileDialog = QFileDialog(self)

  1684.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1685.         fileDialog.setDirectory(dir)

  1686.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1687.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1688.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1689.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1690.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1691. 

  1692.         ok = fileDialog.exec_()

  1693. 

  1694.         if not ok:

  1695.             return

  1696. 

  1697.         newPath = fileDialog.selectedFiles()

  1698. 

  1699.         if len(newPath) != 1:

  1700.             return

  1701. 

  1702.         newPath = newPath[0]

  1703. 

  1704.         if QT_VERSION >= 0x50900:

  1705.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1706.                 imgFormat = b"JPG"

  1707.             else:

  1708.                 imgFormat = b"PNG"

  1709.         else:

  1710.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1711.                 imgFormat = b"JPG"

  1712.             else:

  1713.                 imgFormat = b"PNG"

  1714. 

  1715.         sender = self.sender()

  1716.         if sender == self.ui.act_canvas_save_image_2x:

  1717.             zoom = 2.0

  1718.         elif sender == self.ui.act_canvas_save_image_4x:

  1719.             zoom = 4.0

  1720.         else:

  1721.             zoom = 1.0

  1722. 

  1723.         image = self._canvasImageRender(zoom)

  1724.         iw = QImageWriter(newPath)

  1725.         self._canvasImageWrite(iw, imgFormat, image)

  1726. 

  1727.     @pyqtSlot()

  1728.     def slot_canvasCopyToClipboard(self):

  1729.         buffer = QBuffer()

  1730.         buffer.open(QIODevice.WriteOnly)

  1731. 

  1732.         image = self._canvasImageRender()

  1733.         iw = QImageWriter(buffer, b"PNG")

  1734.         self._canvasImageWrite(iw, b"PNG", image)

  1735. 

  1736.         buffer.close()

  1737. 

  1738.         mimeData = QMimeData()

  1739.         mimeData.setData("image/png", buffer.buffer());

  1740. 

  1741.         QApplication.clipboard().setMimeData(mimeData)

  1742. 

  1743.     # --------------------------------------------------------------------------------------------------------

  1744.     # Canvas (canvas callbacks)

  1745. 

  1746.     @pyqtSlot()

  1747.     def slot_canvasSelectionChanged(self):

  1748.         self.updateMiniCanvasLater()

  1749. 

  1750.     @pyqtSlot(float)

  1751.     def slot_canvasScaleChanged(self, scale):

  1752.         self.ui.miniCanvasPreview.setViewScale(scale)

  1753. 

  1754.     @pyqtSlot(list)

  1755.     def slot_canvasPluginSelected(self, pluginList):

  1756.         self.ui.keyboard.allNotesOff(False)

  1757.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1758.         self.fSelectedPlugins = pluginList

  1759. 

  1760.     # --------------------------------------------------------------------------------------------------------

  1761.     # Canvas (host callbacks)

  1762. 

  1763.     @pyqtSlot(int, int, int, str)

  1764.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1765.         pcSplit = patchcanvas.SPLIT_UNDEF

  1766.         pcIcon  = patchcanvas.ICON_APPLICATION

  1767. 

  1768.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1769.             pcIcon = patchcanvas.ICON_PLUGIN

  1770.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1771.             pcIcon = patchcanvas.ICON_HARDWARE

  1772.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1773.             pass

  1774.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1775.             pcIcon = patchcanvas.ICON_DISTRHO

  1776.         elif clientIcon == PATCHBAY_ICON_FILE:

  1777.             pcIcon = patchcanvas.ICON_FILE

  1778. 

  1779.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1780. 

  1781.         self.updateMiniCanvasLater()

  1782. 

  1783.         if pluginId < 0:

  1784.             return

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

  1786.             print("Error mapping plugin to canvas client:", clientName)

  1787.             return

  1788. 

  1789.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1790.             hasCustomUI = False

  1791.             hasInlineDisplay = False

  1792.         else:

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

  1794.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1795.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1796. 

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

  1798. 

  1799.     @pyqtSlot(int)

  1800.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1801.         patchcanvas.removeGroup(clientId)

  1802.         self.updateMiniCanvasLater()

  1803. 

  1804.     @pyqtSlot(int, str)

  1805.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1806.         patchcanvas.renameGroup(clientId, newClientName)

  1807.         self.updateMiniCanvasLater()

  1808. 

  1809.     @pyqtSlot(int, int, int)

  1810.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1811.         pcIcon = patchcanvas.ICON_APPLICATION

  1812. 

  1813.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1814.             pcIcon = patchcanvas.ICON_PLUGIN

  1815.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1816.             pcIcon = patchcanvas.ICON_HARDWARE

  1817.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1818.             pass

  1819.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1820.             pcIcon = patchcanvas.ICON_DISTRHO

  1821.         elif clientIcon == PATCHBAY_ICON_FILE:

  1822.             pcIcon = patchcanvas.ICON_FILE

  1823. 

  1824.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1825.         self.updateMiniCanvasLater()

  1826. 

  1827.         if pluginId < 0:

  1828.             return

  1829.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1830.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1831.             return

  1832. 

  1833.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1834.             hasCustomUI = False

  1835.             hasInlineDisplay = False

  1836.         else:

  1837.             hints = self.host.get_plugin_info(pluginId)['hints']

  1838.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1839.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1840. 

  1841.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1842. 

  1843.     @pyqtSlot(int, int, int, int, int)

  1844.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1845.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1846.             patchcanvas.splitGroup(clientId)

  1847.         else:

  1848.             patchcanvas.joinGroup(clientId)

  1849.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1850.         self.updateMiniCanvasLater()

  1851. 

  1852.     @pyqtSlot(int, int, int, int, str)

  1853.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1854.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1855.             portMode = patchcanvas.PORT_MODE_INPUT

  1856.         else:

  1857.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1858. 

  1859.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1860.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1861.             isAlternate = False

  1862.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1863.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1864.             isAlternate = False

  1865.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1866.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1867.             isAlternate = False

  1868.         else:

  1869.             portType    = patchcanvas.PORT_TYPE_NULL

  1870.             isAlternate = False

  1871. 

  1872.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1873.         self.updateMiniCanvasLater()

  1874. 

  1875.     @pyqtSlot(int, int)

  1876.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1877.         patchcanvas.removePort(groupId, portId)

  1878.         self.updateMiniCanvasLater()

  1879. 

  1880.     @pyqtSlot(int, int, int, int, str)

  1881.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1882.         patchcanvas.renamePort(groupId, portId, newPortName)

  1883.         self.updateMiniCanvasLater()

  1884. 

  1885.     @pyqtSlot(int, int, int, str)

  1886.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1887.         # TODO

  1888.         pass

  1889. 

  1890.     @pyqtSlot(int, int)

  1891.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1892.         # TODO

  1893.         pass

  1894. 

  1895.     @pyqtSlot(int, int, int, str)

  1896.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1897.         # TODO

  1898.         pass

  1899. 

  1900.     @pyqtSlot(int, int, int, int, int)

  1901.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1902.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1903.         self.updateMiniCanvasLater()

  1904. 

  1905.     @pyqtSlot(int, int, int)

  1906.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1907.         patchcanvas.disconnectPorts(connectionId)

  1908.         self.updateMiniCanvasLater()

  1909. 

  1910.     # --------------------------------------------------------------------------------------------------------

  1911.     # Settings

  1912. 

  1913.     def saveSettings(self):

  1914.         settings = QSafeSettings()

  1915. 

  1916.         settings.setValue("Geometry", self.saveGeometry())

  1917.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1918.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1919. 

  1920.         diskFolders = []

  1921. 

  1922.         for i in range(self.ui.cb_disk.count()):

  1923.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1924. 

  1925.         settings.setValue("DiskFolders", diskFolders)

  1926.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1927. 

  1928.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1929.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1930.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1931.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1932. 

  1933.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1934.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1935. 

  1936.         return settings

  1937. 

  1938.     def loadSettings(self, firstTime):

  1939.         settings = QSafeSettings()

  1940. 

  1941.         if firstTime:

  1942.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1943.             if not geometry.isNull():

  1944.                 self.restoreGeometry(geometry)

  1945. 

  1946.             showToolbar = settings.value("ShowToolbar", True, bool)

  1947.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1948.             self.ui.toolBar.blockSignals(True)

  1949.             self.ui.toolBar.setEnabled(showToolbar)

  1950.             self.ui.toolBar.setVisible(showToolbar)

  1951.             self.ui.toolBar.blockSignals(False)

  1952. 

  1953.             #if settings.contains("SplitterState"):

  1954.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1955.             #else:

  1956.                 #self.ui.splitter.setSizes([210, 99999])

  1957. 

  1958.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1959.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1960.             self.slot_showSidePanel(showSidePanel)

  1961. 

  1962.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1963. 

  1964.             self.ui.cb_disk.setItemData(0, HOME)

  1965. 

  1966.             for i in range(len(diskFolders)):

  1967.                 if i == 0: continue

  1968.                 folder = diskFolders[i]

  1969.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1970. 

  1971.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1972.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1973. 

  1974.             showMeters = settings.value("ShowMeters", True, bool)

  1975.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1976.             self.ui.peak_in.setVisible(showMeters)

  1977.             self.ui.peak_out.setVisible(showMeters)

  1978. 

  1979.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1980.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1981.             self.ui.scrollArea.setVisible(showKeyboard)

  1982. 

  1983.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1984.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1985. 

  1986.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1987. 

  1988.         # TODO - complete this

  1989.         oldSettings = self.fSavedSettings

  1990. 

  1991.         self.fSavedSettings = {

  1992.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1993.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1994.             CARLA_KEY_MAIN_CLASSIC_SKIN:        settings.value(CARLA_KEY_MAIN_CLASSIC_SKIN,        CARLA_DEFAULT_MAIN_CLASSIC_SKIN,        bool),

  1995.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1996.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  1997.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1998.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1999.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  2000.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  2001.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  2002.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  2003.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  2004.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  2005.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  2006.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  2007.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  2008.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  2009.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  2010.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  2011.         }

  2012. 

  2013.         if not self.host.isControl:

  2014.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  2015.         else:

  2016.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  2017. 

  2018.         settings2 = QSafeSettings("falkTX", "Carla2")

  2019. 

  2020.         if self.host.experimental:

  2021.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  2022.             self.ui.act_plugin_add_jack.setVisible(visible)

  2023.         else:

  2024.             self.ui.act_plugin_add_jack.setVisible(False)

  2025. 

  2026.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  2027. 

  2028.         setEngineSettings(self.host)

  2029.         self.restartTimersIfNeeded()

  2030. 

  2031.         if oldSettings.get(CARLA_KEY_MAIN_CLASSIC_SKIN, None) not in (self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN], None):

  2032.             newSkin = "classic" if self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN] else None

  2033. 

  2034.             for pitem in self.fPluginList:

  2035.                 if pitem is None:

  2036.                     continue

  2037.                 pitem.recreateWidget(newSkin = newSkin)

  2038. 

  2039.         return settings

  2040. 

  2041.     # --------------------------------------------------------------------------------------------------------

  2042.     # Settings (helpers)

  2043. 

  2044.     def enableTransport(self, enabled):

  2045.         self.ui.group_transport_controls.setEnabled(enabled)

  2046.         self.ui.group_transport_settings.setEnabled(enabled)

  2047. 

  2048.     @pyqtSlot()

  2049.     def slot_restoreCanvasScrollbarValues(self):

  2050.         settings = QSafeSettings()

  2051.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  2052.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  2053.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2054.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2055. 

  2056.     # --------------------------------------------------------------------------------------------------------

  2057.     # Settings (menu actions)

  2058. 

  2059.     @pyqtSlot(bool)

  2060.     def slot_showSidePanel(self, yesNo):

  2061.         self.ui.dockWidget.setEnabled(yesNo)

  2062.         self.ui.dockWidget.setVisible(yesNo)

  2063. 

  2064.     @pyqtSlot(bool)

  2065.     def slot_showToolbar(self, yesNo):

  2066.         self.ui.toolBar.blockSignals(True)

  2067.         self.ui.toolBar.setEnabled(yesNo)

  2068.         self.ui.toolBar.setVisible(yesNo)

  2069.         self.ui.toolBar.blockSignals(False)

  2070. 

  2071.     @pyqtSlot(bool)

  2072.     def slot_showCanvasMeters(self, yesNo):

  2073.         self.ui.peak_in.setVisible(yesNo)

  2074.         self.ui.peak_out.setVisible(yesNo)

  2075.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2076. 

  2077.     @pyqtSlot(bool)

  2078.     def slot_showCanvasKeyboard(self, yesNo):

  2079.         self.ui.scrollArea.setVisible(yesNo)

  2080.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2081. 

  2082.     @pyqtSlot()

  2083.     def slot_configureCarla(self):

  2084.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2085.         if not dialog.exec_():

  2086.             return

  2087. 

  2088.         self.loadSettings(False)

  2089. 

  2090.         if self.fWithCanvas:

  2091.             patchcanvas.clear()

  2092.             self.setupCanvas()

  2093.             self.slot_miniCanvasCheckAll()

  2094. 

  2095.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2096.             pass

  2097.         elif self.host.is_engine_running():

  2098.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2099. 

  2100.     # --------------------------------------------------------------------------------------------------------

  2101.     # About (menu actions)

  2102. 

  2103.     @pyqtSlot()

  2104.     def slot_aboutCarla(self):

  2105.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2106. 

  2107.     @pyqtSlot()

  2108.     def slot_aboutJuce(self):

  2109.         JuceAboutW(self.fParentOrSelf).exec_()

  2110. 

  2111.     @pyqtSlot()

  2112.     def slot_aboutQt(self):

  2113.         QApplication.instance().aboutQt()

  2114. 

  2115.     # --------------------------------------------------------------------------------------------------------

  2116.     # Disk (menu actions)

  2117. 

  2118.     @pyqtSlot(int)

  2119.     def slot_diskFolderChanged(self, index):

  2120.         if index < 0:

  2121.             return

  2122.         elif index == 0:

  2123.             filename = HOME

  2124.             self.ui.b_disk_remove.setEnabled(False)

  2125.         else:

  2126.             filename = self.ui.cb_disk.itemData(index)

  2127.             self.ui.b_disk_remove.setEnabled(True)

  2128. 

  2129.         self.fDirModel.setRootPath(filename)

  2130.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2131. 

  2132.     @pyqtSlot()

  2133.     def slot_diskFolderAdd(self):

  2134.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2135. 

  2136.         if newPath:

  2137.             if newPath[-1] == os.sep:

  2138.                 newPath = newPath[:-1]

  2139.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2140.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2141.             self.ui.b_disk_remove.setEnabled(True)

  2142. 

  2143.     @pyqtSlot()

  2144.     def slot_diskFolderRemove(self):

  2145.         index = self.ui.cb_disk.currentIndex()

  2146. 

  2147.         if index <= 0:

  2148.             return

  2149. 

  2150.         self.ui.cb_disk.removeItem(index)

  2151. 

  2152.         if self.ui.cb_disk.currentIndex() == 0:

  2153.             self.ui.b_disk_remove.setEnabled(False)

  2154. 

  2155.     @pyqtSlot(QModelIndex)

  2156.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2157.         filename = self.fDirModel.filePath(modelIndex)

  2158. 

  2159.         if not self.ui.listWidget.isDragUrlValid(filename):

  2160.             return

  2161. 

  2162.         if not self.host.load_file(filename):

  2163.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2164.                              self.tr("Failed to load file"),

  2165.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2166.             return

  2167. 

  2168.         if filename.endswith(".carxp"):

  2169.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2170. 

  2171.     # --------------------------------------------------------------------------------------------------------

  2172.     # Transport

  2173. 

  2174.     def refreshTransport(self, forced = False):

  2175.         if not self.ui.l_transport_time.isVisible():

  2176.             return

  2177.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2178.             return

  2179. 

  2180.         timeInfo = self.host.get_transport_info()

  2181.         playing  = timeInfo['playing']

  2182.         frame    = timeInfo['frame']

  2183.         bpm      = timeInfo['bpm']

  2184. 

  2185.         if playing != self.fLastTransportState or forced:

  2186.             if playing:

  2187.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2188.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2189.                 else:

  2190.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2191.                 self.ui.b_transport_play.setChecked(True)

  2192.                 self.ui.b_transport_play.setIcon(icon)

  2193.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2194.             else:

  2195.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

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

  2197.                 else:

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

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

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

  2201.                 #self.ui.b_play.setText(self.tr("&Play"))

  2202. 

  2203.             self.fLastTransportState = playing

  2204. 

  2205.         if frame != self.fLastTransportFrame or forced:

  2206.             self.fLastTransportFrame = frame

  2207. 

  2208.             time = frame / self.fSampleRate

  2209.             secs =  time % 60

  2210.             mins = (time / 60) % 60

  2211.             hrs  = (time / 3600) % 60

  2212.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2213. 

  2214.             frame1 =  frame % 1000

  2215.             frame2 = (frame / 1000) % 1000

  2216.             frame3 = (frame / 1000000) % 1000

  2217.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2218. 

  2219.             bar  = timeInfo['bar']

  2220.             beat = timeInfo['beat']

  2221.             tick = timeInfo['tick']

  2222.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2223. 

  2224.         if bpm != self.fLastTransportBPM or forced:

  2225.             self.fLastTransportBPM = bpm

  2226. 

  2227.             if bpm > 0.0:

  2228.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2229.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2230.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2231.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2232.             else:

  2233.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2234. 

  2235.     # --------------------------------------------------------------------------------------------------------

  2236.     # Transport (menu actions)

  2237. 

  2238.     @pyqtSlot(bool)

  2239.     def slot_transportPlayPause(self, toggled):

  2240.         if self.host.isPlugin or not self.host.is_engine_running():

  2241.             return

  2242. 

  2243.         if toggled:

  2244.             self.host.transport_play()

  2245.         else:

  2246.             self.host.transport_pause()

  2247. 

  2248.         self.refreshTransport()

  2249. 

  2250.     @pyqtSlot()

  2251.     def slot_transportStop(self):

  2252.         if self.host.isPlugin or not self.host.is_engine_running():

  2253.             return

  2254. 

  2255.         self.host.transport_pause()

  2256.         self.host.transport_relocate(0)

  2257. 

  2258.         self.refreshTransport()

  2259. 

  2260.     @pyqtSlot()

  2261.     def slot_transportBackwards(self):

  2262.         if self.host.isPlugin or not self.host.is_engine_running():

  2263.             return

  2264. 

  2265.         newFrame = self.host.get_current_transport_frame() - 100000

  2266. 

  2267.         if newFrame < 0:

  2268.             newFrame = 0

  2269. 

  2270.         self.host.transport_relocate(newFrame)

  2271. 

  2272.     @pyqtSlot(float)

  2273.     def slot_transportBpmChanged(self, newValue):

  2274.         self.host.transport_bpm(newValue)

  2275. 

  2276.     @pyqtSlot()

  2277.     def slot_transportForwards(self):

  2278.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2279.             return

  2280. 

  2281.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2282.         self.host.transport_relocate(newFrame)

  2283. 

  2284.     @pyqtSlot(bool)

  2285.     def slot_transportJackEnabled(self, clicked):

  2286.         if not self.host.is_engine_running():

  2287.             return

  2288.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2289.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2290.                                     self.host.transportMode,

  2291.                                     self.host.transportExtra)

  2292. 

  2293.     @pyqtSlot(bool)

  2294.     def slot_transportLinkEnabled(self, clicked):

  2295.         if not self.host.is_engine_running():

  2296.             return

  2297.         extra = ":link:" if clicked else ""

  2298.         self.host.transportExtra = extra

  2299.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2300.                                     self.host.transportMode,

  2301.                                     self.host.transportExtra)

  2302. 

  2303.     # --------------------------------------------------------------------------------------------------------

  2304.     # Other

  2305. 

  2306.     @pyqtSlot(bool)

  2307.     def slot_xrunClear(self):

  2308.         self.host.clear_engine_xruns()

  2309. 

  2310.     # --------------------------------------------------------------------------------------------------------

  2311.     # Canvas scrollbars

  2312. 

  2313.     @pyqtSlot(int)

  2314.     def slot_horizontalScrollBarChanged(self, value):

  2315.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2316.         if maximum == 0:

  2317.             xp = 0

  2318.         else:

  2319.             xp = float(value) / maximum

  2320.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2321.         self.updateCanvasInitialPos()

  2322. 

  2323.     @pyqtSlot(int)

  2324.     def slot_verticalScrollBarChanged(self, value):

  2325.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2326.         if maximum == 0:

  2327.             yp = 0

  2328.         else:

  2329.             yp = float(value) / maximum

  2330.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2331.         self.updateCanvasInitialPos()

  2332. 

  2333.     # --------------------------------------------------------------------------------------------------------

  2334.     # Canvas keyboard

  2335. 

  2336.     @pyqtSlot(int)

  2337.     def slot_noteOn(self, note):

  2338.         if self.fPluginCount == 0:

  2339.             return

  2340. 

  2341.         for pluginId in self.fSelectedPlugins:

  2342.             self.host.send_midi_note(pluginId, 0, note, 100)

  2343. 

  2344.             pedit = self.getPluginEditDialog(pluginId)

  2345.             pedit.noteOn(0, note, 100)

  2346. 

  2347.     @pyqtSlot(int)

  2348.     def slot_noteOff(self, note):

  2349.         if self.fPluginCount == 0:

  2350.             return

  2351. 

  2352.         for pluginId in self.fSelectedPlugins:

  2353.             self.host.send_midi_note(pluginId, 0, note, 0)

  2354. 

  2355.             pedit = self.getPluginEditDialog(pluginId)

  2356.             pedit.noteOff(0, note)

  2357. 

  2358.     # --------------------------------------------------------------------------------------------------------

  2359.     # Canvas keyboard (host callbacks)

  2360. 

  2361.     @pyqtSlot(int, int, int, int)

  2362.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2363.         if pluginId in self.fSelectedPlugins:

  2364.             self.ui.keyboard.sendNoteOn(note, False)

  2365. 

  2366.     @pyqtSlot(int, int, int)

  2367.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2368.         if pluginId in self.fSelectedPlugins:

  2369.             self.ui.keyboard.sendNoteOff(note, False)

  2370. 

  2371.     # --------------------------------------------------------------------------------------------------------

  2372. 

  2373.     @pyqtSlot(int)

  2374.     def slot_handleUpdateCallback(self, pluginId):

  2375.         pitem = self.getPluginItem(pluginId)

  2376. 

  2377.         if pitem is None:

  2378.             return

  2379. 

  2380.         wasCompacted = pitem.isCompacted()

  2381.         isCompacted  = wasCompacted

  2382. 

  2383.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2384.         if not check:

  2385.             return

  2386.         isCompacted = bool(check == "true")

  2387. 

  2388.         if wasCompacted == isCompacted:

  2389.             return

  2390. 

  2391.         pitem.recreateWidget(True)

  2392. 

  2393.     # --------------------------------------------------------------------------------------------------------

  2394.     # MiniCanvas stuff

  2395. 

  2396.     @pyqtSlot()

  2397.     def slot_miniCanvasCheckAll(self):

  2398.         self.slot_miniCanvasCheckSize()

  2399.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2400.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2401. 

  2402.     @pyqtSlot()

  2403.     def slot_miniCanvasCheckSize(self):

  2404.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2405.             return

  2406. 

  2407.         currentIndex = self.ui.tabWidget.currentIndex()

  2408. 

  2409.         if currentIndex == 1:

  2410.             width  = self.ui.graphicsView.width()

  2411.             height = self.ui.graphicsView.height()

  2412.         else:

  2413.             self.ui.tabWidget.blockSignals(True)

  2414.             self.ui.tabWidget.setCurrentIndex(1)

  2415.             width  = self.ui.graphicsView.width()

  2416.             height = self.ui.graphicsView.height()

  2417.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2418.             self.ui.tabWidget.blockSignals(False)

  2419. 

  2420.         self.scene.updateLimits()

  2421. 

  2422.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2423. 

  2424.     @pyqtSlot(float, float)

  2425.     def slot_miniCanvasMoved(self, xp, yp):

  2426.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2427.         vsb = self.ui.graphicsView.verticalScrollBar()

  2428.         hsb.setValue(xp * hsb.maximum())

  2429.         vsb.setValue(yp * vsb.maximum())

  2430.         self.updateCanvasInitialPos()

  2431. 

  2432.     # --------------------------------------------------------------------------------------------------------

  2433.     # Logs autoscroll, save and clear

  2434. 

  2435.     @pyqtSlot(int)

  2436.     def slot_toggleLogAutoscroll(self, checkState):

  2437.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2438.         if self.autoscrollOnNewLog:

  2439.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2440. 

  2441.     @pyqtSlot(int)

  2442.     def slot_logSliderMoved(self, slider_pos):

  2443.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2444.             self.lastLogSliderPos = slider_pos

  2445.         else:

  2446.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2447. 

  2448.     @pyqtSlot()

  2449.     def slot_logButtonsState(self, enabled=True):

  2450.         self.ui.logs_clear.setEnabled(enabled)

  2451.         self.ui.logs_save.setEnabled(enabled)

  2452. 

  2453.     @pyqtSlot()

  2454.     def slot_logSave(self):

  2455.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2456.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2457. 

  2458.         if not filename:

  2459.             return

  2460. 

  2461.         try:

  2462.             with open(filename, "w") as logfile:

  2463.                 logfile.write(self.ui.text_logs.toPlainText())

  2464.                 logfile.close()

  2465.         except:

  2466.             return

  2467. 

  2468.     @pyqtSlot()

  2469.     def slot_logClear(self):

  2470.         self.ui.text_logs.clear()

  2471.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2472.         self.slot_logButtonsState(False)

  2473. 

  2474.     # --------------------------------------------------------------------------------------------------------

  2475.     # Timers

  2476. 

  2477.     def startTimers(self):

  2478.         if self.fIdleTimerFast == 0:

  2479.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2480. 

  2481.         if self.fIdleTimerSlow == 0:

  2482.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2483. 

  2484.     def restartTimersIfNeeded(self):

  2485.         if self.fIdleTimerFast != 0:

  2486.             self.killTimer(self.fIdleTimerFast)

  2487.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2488. 

  2489.         if self.fIdleTimerSlow != 0:

  2490.             self.killTimer(self.fIdleTimerSlow)

  2491.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2492. 

  2493.     def killTimers(self):

  2494.         if self.fIdleTimerFast != 0:

  2495.             self.killTimer(self.fIdleTimerFast)

  2496.             self.fIdleTimerFast = 0

  2497. 

  2498.         if self.fIdleTimerSlow != 0:

  2499.             self.killTimer(self.fIdleTimerSlow)

  2500.             self.fIdleTimerSlow = 0

  2501. 

  2502.     # --------------------------------------------------------------------------------------------------------

  2503.     # Misc

  2504. 

  2505.     @pyqtSlot(bool)

  2506.     def slot_toolbarVisibilityChanged(self, visible):

  2507.         self.ui.toolBar.blockSignals(True)

  2508.         self.ui.toolBar.setEnabled(visible)

  2509.         self.ui.toolBar.blockSignals(False)

  2510.         self.ui.act_settings_show_toolbar.setChecked(visible)

  2511. 

  2512.     @pyqtSlot(int)

  2513.     def slot_tabChanged(self, index):

  2514.         if index != 1:

  2515.             return

  2516. 

  2517.         self.ui.graphicsView.setFocus()

  2518. 

  2519.     @pyqtSlot(int)

  2520.     def slot_handleReloadAllCallback(self, pluginId):

  2521.         if pluginId >= self.fPluginCount:

  2522.             return

  2523. 

  2524.         pitem = self.fPluginList[pluginId]

  2525.         if pitem is None:

  2526.             return

  2527. 

  2528.         pitem.recreateWidget()

  2529. 

  2530.     # --------------------------------------------------------------------------------------------------------

  2531. 

  2532.     @pyqtSlot(int, int, str)

  2533.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2534.         if opcode == NSM_CALLBACK_INIT:

  2535.             return

  2536. 

  2537.         # Error

  2538.         elif opcode == NSM_CALLBACK_ERROR:

  2539.             pass

  2540. 

  2541.         # Reply

  2542.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2543.             self.fFirstEngineInit    = False

  2544.             self.fSessionManagerName = valueStr

  2545.             self.setProperWindowTitle()

  2546. 

  2547.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2548.             if (valueInt & (1 << 1)) == 0x0:

  2549.                 self.fWindowCloseHideGui = False

  2550.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2551.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2552.                 self.show()

  2553. 

  2554.         # Open

  2555.         elif opcode == NSM_CALLBACK_OPEN:

  2556.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2557.             self.setProperWindowTitle()

  2558. 

  2559.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2560.             self.slot_engineStop(True)

  2561.             return

  2562. 

  2563.         # Save

  2564.         elif opcode == NSM_CALLBACK_SAVE:

  2565.             self.saveProjectNow()

  2566. 

  2567.         # Session is Loaded

  2568.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2569.             pass

  2570. 

  2571.         # Show Optional Gui

  2572.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2573.             self.show()

  2574. 

  2575.         # Hide Optional Gui

  2576.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2577.             self.hideForNSM()

  2578. 

  2579.         # Set client name

  2580.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2581.             self.fClientName = valueStr

  2582.             return

  2583. 

  2584.         self.host.nsm_ready(opcode)

  2585. 

  2586.     # --------------------------------------------------------------------------------------------------------

  2587. 

  2588.     def fixLogText(self, text):

  2589.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2590. 

  2591.     @pyqtSlot(int, int, int, int, float, str)

  2592.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2593.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2594. 

  2595.     @pyqtSlot(str)

  2596.     def slot_handleInfoCallback(self, info):

  2597.         QMessageBox.information(self, "Information", info)

  2598. 

  2599.     @pyqtSlot(str)

  2600.     def slot_handleErrorCallback(self, error):

  2601.         QMessageBox.critical(self, "Error", error)

  2602. 

  2603.     @pyqtSlot()

  2604.     def slot_handleQuitCallback(self):

  2605.         self.fIsProjectLoading = False

  2606.         self.killTimers()

  2607.         self.removeAllPlugins()

  2608.         self.projectLoadingFinished(False)

  2609. 

  2610.     @pyqtSlot(int)

  2611.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2612.         # FIXME

  2613.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2614.             patchcanvas.redrawPluginGroup(pluginId)

  2615. 

  2616.     # --------------------------------------------------------------------------------------------------------

  2617. 

  2618.     @pyqtSlot()

  2619.     def slot_handleSIGUSR1(self):

  2620.         print("Got SIGUSR1 -> Saving project now")

  2621.         self.slot_fileSave()

  2622. 

  2623.     @pyqtSlot()

  2624.     def slot_handleSIGTERM(self):

  2625.         print("Got SIGTERM -> Closing now")

  2626.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2627.         self.close()

  2628. 

  2629.     # --------------------------------------------------------------------------------------------------------

  2630.     # Internal stuff

  2631. 

  2632.     def getExtraPtr(self, plugin):

  2633.         ptype = plugin['type']

  2634. 

  2635.         if ptype == PLUGIN_LADSPA:

  2636.             uniqueId = plugin['uniqueId']

  2637. 

  2638.             self.maybeLoadRDFs()

  2639. 

  2640.             for rdfItem in self.fLadspaRdfList:

  2641.                 if rdfItem.UniqueID == uniqueId:

  2642.                     return pointer(rdfItem)

  2643. 

  2644.         elif ptype == PLUGIN_SF2:

  2645.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2646.                 return self._true

  2647. 

  2648.         return None

  2649. 

  2650.     def maybeLoadRDFs(self):

  2651.         if not self.fLadspaRdfNeedsUpdate:

  2652.             return

  2653. 

  2654.         self.fLadspaRdfNeedsUpdate = False

  2655.         self.fLadspaRdfList = []

  2656. 

  2657.         if not haveLRDF:

  2658.             return

  2659. 

  2660.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2661.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2662. 

  2663.         if os.path.exists(frLadspaFile):

  2664.             frLadspa = open(frLadspaFile, 'r')

  2665. 

  2666.             try:

  2667.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2668.             except:

  2669.                 pass

  2670. 

  2671.             frLadspa.close()

  2672. 

  2673.     # --------------------------------------------------------------------------------------------------------

  2674. 

  2675.     def getPluginCount(self):

  2676.         return self.fPluginCount

  2677. 

  2678.     def getPluginItem(self, pluginId):

  2679.         if pluginId >= self.fPluginCount:

  2680.             return None

  2681. 

  2682.         pitem = self.fPluginList[pluginId]

  2683.         if pitem is None:

  2684.             return None

  2685.         #if False:

  2686.             #return CarlaRackItem(self, 0, False)

  2687. 

  2688.         return pitem

  2689. 

  2690.     def getPluginEditDialog(self, pluginId):

  2691.         if pluginId >= self.fPluginCount:

  2692.             return None

  2693. 

  2694.         pitem = self.fPluginList[pluginId]

  2695.         if pitem is None:

  2696.             return None

  2697.         if False:

  2698.             return PluginEdit(self, self.host, 0)

  2699. 

  2700.         return pitem.getEditDialog()

  2701. 

  2702.     def getPluginSlotWidget(self, pluginId):

  2703.         if pluginId >= self.fPluginCount:

  2704.             return None

  2705. 

  2706.         pitem = self.fPluginList[pluginId]

  2707.         if pitem is None:

  2708.             return None

  2709.         #if False:

  2710.             #return AbstractPluginSlot()

  2711. 

  2712.         return pitem.getWidget()

  2713. 

  2714.     # --------------------------------------------------------------------------------------------------------

  2715. 

  2716.     def waitForPendingEvents(self):

  2717.         pass

  2718. 

  2719.     # --------------------------------------------------------------------------------------------------------

  2720.     # show/hide event

  2721. 

  2722.     def showEvent(self, event):

  2723.         self.getAndRefreshRuntimeInfo()

  2724.         self.refreshTransport(True)

  2725.         QMainWindow.showEvent(self, event)

  2726. 

  2727.         if QT_VERSION >= 0x50600:

  2728.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2729.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2730. 

  2731.         # set our gui as parent for all plugins UIs

  2732.         if self.host.manageUIs and not self.host.isControl:

  2733.             if MACOS:

  2734.                 nsViewPtr = int(self.winId())

  2735.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2736.             else:

  2737.                 winIdStr = "%x" % int(self.winId())

  2738.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2739. 

  2740.     def hideEvent(self, event):

  2741.         # disable parent

  2742.         if not self.host.isControl:

  2743.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2744. 

  2745.         QMainWindow.hideEvent(self, event)

  2746. 

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

  2748.     # resize event

  2749. 

  2750.     def resizeEvent(self, event):

  2751.         QMainWindow.resizeEvent(self, event)

  2752. 

  2753.         if self.fWithCanvas:

  2754.             self.slot_miniCanvasCheckSize()

  2755. 

  2756.     # --------------------------------------------------------------------------------------------------------

  2757.     # timer event

  2758. 

  2759.     def refreshRuntimeInfo(self, load, xruns):

  2760.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2761.         txt2 = "" if (xruns == 1) else "s"

  2762.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2763.         self.ui.pb_dsp_load.setValue(int(load))

  2764. 

  2765.     def getAndRefreshRuntimeInfo(self):

  2766.         if not self.ui.pb_dsp_load.isVisible():

  2767.             return

  2768.         if not self.host.is_engine_running():

  2769.             return

  2770.         info = self.host.get_runtime_engine_info()

  2771.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2772. 

  2773.     def idleFast(self):

  2774.         self.host.engine_idle()

  2775.         self.refreshTransport()

  2776. 

  2777.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2778.             return

  2779. 

  2780.         for pitem in self.fPluginList:

  2781.             if pitem is None:

  2782.                 break

  2783. 

  2784.             pitem.getWidget().idleFast()

  2785. 

  2786.         for pluginId in self.fSelectedPlugins:

  2787.             self.fPeaksCleared = False

  2788.             if self.ui.peak_in.isVisible():

  2789.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2790.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2791.             if self.ui.peak_out.isVisible():

  2792.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2793.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2794.             return

  2795. 

  2796.         if self.fPeaksCleared:

  2797.             return

  2798. 

  2799.         self.fPeaksCleared = True

  2800.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2801.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2802.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2803.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2804. 

  2805.     def idleSlow(self):

  2806.         self.getAndRefreshRuntimeInfo()

  2807. 

  2808.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2809.             return

  2810. 

  2811.         for pitem in self.fPluginList:

  2812.             if pitem is None:

  2813.                 break

  2814. 

  2815.             pitem.getWidget().idleSlow()

  2816. 

  2817.     def timerEvent(self, event):

  2818.         if event.timerId() == self.fIdleTimerFast:

  2819.             self.idleFast()

  2820. 

  2821.         elif event.timerId() == self.fIdleTimerSlow:

  2822.             self.idleSlow()

  2823. 

  2824.         QMainWindow.timerEvent(self, event)

  2825. 

  2826.     # --------------------------------------------------------------------------------------------------------

  2827.     # color/style change event

  2828. 

  2829.     def changeEvent(self, event):

  2830.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2831.             self.updateStyle()

  2832.         QMainWindow.changeEvent(self, event)

  2833. 

  2834.     def updateStyle(self):

  2835.         # Rack padding images setup

  2836.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2837.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2838. 

  2839.         min_value = 0.07

  2840. 

  2841.         if PYQT_VERSION >= 0x50600:

  2842.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2843.         else:

  2844.             value_fix = 1.5

  2845. 

  2846.         rack_pal = self.ui.rack.palette()

  2847.         bg_color = rack_pal.window().color()

  2848.         fg_color = rack_pal.text().color()

  2849.         bg_value = 1.0 - bg_color.blackF()

  2850.         if bg_value != 0.0 and bg_value < min_value:

  2851.             pad_color = bg_color.lighter(int(100*min_value/bg_value*value_fix))

  2852.         else:

  2853.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2854. 

  2855.         painter = QPainter()

  2856.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2857. 

  2858.         painter.begin(rack_imgL)

  2859.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2860.         painter.setBrush(pad_color)

  2861.         painter.drawRect(fillRect)

  2862.         painter.end()

  2863.         rack_pixmapL = QPixmap(rack_imgL)

  2864.         self.imgL_palette = QPalette()

  2865.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2866.         self.ui.pad_left.setPalette(self.imgL_palette)

  2867.         self.ui.pad_left.setAutoFillBackground(True)

  2868. 

  2869.         painter.begin(rack_imgR)

  2870.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2871.         painter.setBrush(pad_color)

  2872.         painter.drawRect(fillRect)

  2873.         painter.end()

  2874.         rack_pixmapR = QPixmap(rack_imgR)

  2875.         self.imgR_palette = QPalette()

  2876.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2877.         self.ui.pad_right.setPalette(self.imgR_palette)

  2878.         self.ui.pad_right.setAutoFillBackground(True)

  2879. 

  2880.         # qt's rgba is actually argb, so convert that

  2881.         bg_color_value = bg_color.rgba()

  2882.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2883. 

  2884.         fg_color_value = fg_color.rgba()

  2885.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2886. 

  2887.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2888.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2889. 

  2890.     # --------------------------------------------------------------------------------------------------------

  2891.     # paint event

  2892. 

  2893.     #def paintEvent(self, event):

  2894.         #QMainWindow.paintEvent(self, event)

  2895. 

  2896.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2897.             #return

  2898. 

  2899.         #painter = QPainter(self)

  2900.         #painter.setBrush(QColor(36, 36, 36))

  2901.         #painter.setPen(QColor(62, 62, 62))

  2902.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2903. 

  2904.     # --------------------------------------------------------------------------------------------------------

  2905.     # close event

  2906. 

  2907.     def shouldIgnoreClose(self):

  2908.         if self.host.isControl or self.host.isPlugin:

  2909.             return False

  2910.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2911.             return False

  2912.         if self.fWindowCloseHideGui:

  2913.             return False

  2914.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2915.             return QMessageBox.question(self, self.tr("Quit"),

  2916.                                               self.tr("Are you sure you want to quit Carla?"),

  2917.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2918.         return False

  2919. 

  2920.     def closeEvent(self, event):

  2921.         if self.shouldIgnoreClose():

  2922.             event.ignore()

  2923.             return

  2924. 

  2925.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2926.             self.hideForNSM()

  2927.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2928.             return

  2929. 

  2930.         patchcanvas.handleAllPluginsRemoved()

  2931. 

  2932.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2933.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2934.             self.fMacClosingHelper = False

  2935.             event.ignore()

  2936. 

  2937.             for i in reversed(range(self.fPluginCount)):

  2938.                 self.host.show_custom_ui(i, False)

  2939. 

  2940.             QTimer.singleShot(100, self.close)

  2941.             return

  2942. 

  2943.         self.killTimers()

  2944.         self.saveSettings()

  2945. 

  2946.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2947.             if not self.slot_engineStop(True):

  2948.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2949.                 event.ignore()

  2950.                 return

  2951. 

  2952.         QMainWindow.closeEvent(self, event)

  2953. 

  2954.         # if we reach this point, fully close ourselves

  2955.         gCarla.gui = None

  2956.         QApplication.instance().quit()

  2957. 

  2958. # ------------------------------------------------------------------------------------------------

  2959. # Canvas callback

  2960. 

  2961. def canvasCallback(action, value1, value2, valueStr):

  2962.     host = gCarla.gui.host

  2963. 

  2964.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2965.         return

  2966. 

  2967.     if action == patchcanvas.ACTION_GROUP_INFO:

  2968.         pass

  2969. 

  2970.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2971.         pass

  2972. 

  2973.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2974.         groupId = value1

  2975.         patchcanvas.splitGroup(groupId)

  2976.         gCarla.gui.updateMiniCanvasLater()

  2977. 

  2978.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2979.         groupId = value1

  2980.         patchcanvas.joinGroup(groupId)

  2981.         gCarla.gui.updateMiniCanvasLater()

  2982. 

  2983.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2984.         if gCarla.gui.fIsProjectLoading:

  2985.             return

  2986.         if not host.is_engine_running():

  2987.             return

  2988.         groupId = value1

  2989.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2990.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2991.         gCarla.gui.updateMiniCanvasLater()

  2992. 

  2993.     elif action == patchcanvas.ACTION_PORT_INFO:

  2994.         pass

  2995. 

  2996.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2997.         pass

  2998. 

  2999.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  3000.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  3001. 

  3002.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  3003.             print("Connection failed:", host.get_last_error())

  3004. 

  3005.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  3006.         connectionId = value1

  3007. 

  3008.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  3009.             print("Disconnect failed:", host.get_last_error())

  3010. 

  3011.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  3012.         pluginId = value1

  3013. 

  3014.         if not host.clone_plugin(pluginId):

  3015.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3016.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3017. 

  3018.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  3019.         pluginId = value1

  3020.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3021. 

  3022.         if pwidget is not None:

  3023.             pwidget.showEditDialog()

  3024. 

  3025.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  3026.         pluginId = value1

  3027.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3028. 

  3029.         if pwidget is not None:

  3030.             pwidget.showRenameDialog()

  3031. 

  3032.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  3033.         pluginId = value1

  3034.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3035. 

  3036.         if pwidget is not None:

  3037.             pwidget.showReplaceDialog()

  3038. 

  3039.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  3040.         pluginId = value1

  3041. 

  3042.         if not host.remove_plugin(pluginId):

  3043.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3044.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3045. 

  3046.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  3047.         pluginId = value1

  3048.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3049. 

  3050.         if pwidget is not None:

  3051.             pwidget.showCustomUI()

  3052. 

  3053.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  3054.         gCarla.gui.slot_showPluginActionsMenu()

  3055. 

  3056.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  3057.         if gCarla.gui.fIsProjectLoading:

  3058.             return

  3059.         if not host.is_engine_running():

  3060.             return

  3061.         pluginId = value1

  3062.         width, height = [int(v) for v in valueStr.split(":")]

  3063.         return host.render_inline_display(pluginId, width, height)

  3064. 

  3065. # ------------------------------------------------------------------------------------------------------------

  3066. # Engine callback

  3067. 

  3068. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3069.     # kdevelop likes this :)

  3070.     if False: host = CarlaHostNull()

  3071. 

  3072.     valueStr = charPtrToString(valueStr)

  3073. 

  3074.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3075.         host.processMode   = value1

  3076.         host.transportMode = value2

  3077.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3078.         host.processMode   = value1

  3079.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3080.         host.transportMode  = value1

  3081.         host.transportExtra = valueStr

  3082. 

  3083.     if action == ENGINE_CALLBACK_DEBUG:

  3084.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3085.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3086.         host.PluginAddedCallback.emit(pluginId, value1, valueStr)

  3087.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3088.         host.PluginRemovedCallback.emit(pluginId)

  3089.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3090.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3091.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3092.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3093.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3094.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3095.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3096.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3097.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3098.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3099.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3100.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3101.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3102.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3103.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3104.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3105.         host.ProgramChangedCallback.emit(pluginId, value1)

  3106.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3107.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3108.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3109.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3110.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3111.         host.UiStateChangedCallback.emit(pluginId, value1)

  3112.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3113.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3114.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3115.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3116.     elif action == ENGINE_CALLBACK_UPDATE:

  3117.         host.UpdateCallback.emit(pluginId)

  3118.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3119.         host.ReloadInfoCallback.emit(pluginId)

  3120.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3121.         host.ReloadParametersCallback.emit(pluginId)

  3122.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3123.         host.ReloadProgramsCallback.emit(pluginId)

  3124.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3125.         host.ReloadAllCallback.emit(pluginId)

  3126.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3127.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3128.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3129.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3130.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3131.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3132.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3133.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3134.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3135.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3136.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3137.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3138.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3139.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3140.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3141.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3142.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3143.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3144.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3145.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3146.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3147.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3148.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3149.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3150.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3151.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3152.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3153.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3154.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3155.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3156.         host.EngineStoppedCallback.emit()

  3157.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3158.         host.ProcessModeChangedCallback.emit(value1)

  3159.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3160.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3161.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3162.         host.BufferSizeChangedCallback.emit(value1)

  3163.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3164.         host.SampleRateChangedCallback.emit(valuef)

  3165.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3166.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3167.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3168.         host.ProjectLoadFinishedCallback.emit()

  3169.     elif action == ENGINE_CALLBACK_NSM:

  3170.         host.NSMCallback.emit(value1, value2, valueStr)

  3171.     elif action == ENGINE_CALLBACK_IDLE:

  3172.         QApplication.processEvents()

  3173.     elif action == ENGINE_CALLBACK_INFO:

  3174.         host.InfoCallback.emit(valueStr)

  3175.     elif action == ENGINE_CALLBACK_ERROR:

  3176.         host.ErrorCallback.emit(valueStr)

  3177.     elif action == ENGINE_CALLBACK_QUIT:

  3178.         host.QuitCallback.emit()

  3179.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3180.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3181.     else:

  3182.         print("unhandled action", action)

  3183. 

  3184. # ------------------------------------------------------------------------------------------------------------

  3185. # File callback

  3186. 

  3187. def fileCallback(ptr, action, isDir, title, filter):

  3188.     title  = charPtrToString(title)

  3189.     filter = charPtrToString(filter)

  3190. 

  3191.     if action == FILE_CALLBACK_OPEN:

  3192.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3193.     elif action == FILE_CALLBACK_SAVE:

  3194.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3195.     else:

  3196.         ret, ok = ("", "")

  3197. 

  3198.     # FIXME use ok value, test if it works as expected

  3199.     if not ret:

  3200.         return None

  3201. 

  3202.     # FIXME

  3203.     global fileRet

  3204.     fileRet = c_char_p(ret.encode("utf-8"))

  3205.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3206.     return retval.contents.value

  3207. 

  3208. # ------------------------------------------------------------------------------------------------------------

  3209. # Init host

  3210. 

  3211. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3212.     pathBinaries, pathResources = getPaths(libPrefix)

  3213. 

  3214.     # --------------------------------------------------------------------------------------------------------

  3215.     # Fail if binary dir is not found

  3216. 

  3217.     if not os.path.exists(pathBinaries):

  3218.         if failError:

  3219.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3220.             sys.exit(1)

  3221.         return

  3222. 

  3223.     # --------------------------------------------------------------------------------------------------------

  3224.     # Check if we should open main lib as local or global

  3225. 

  3226.     settings = QSafeSettings("falkTX", "Carla2")

  3227. 

  3228.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3229. 

  3230.     # --------------------------------------------------------------------------------------------------------

  3231.     # Set Carla library name

  3232. 

  3233.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3234.     libname   = os.path.join(pathBinaries, libname)

  3235.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3236. 

  3237.     # --------------------------------------------------------------------------------------------------------

  3238.     # Print info

  3239. 

  3240.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3241.         print("Carla %s started, status:" % VERSION)

  3242.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3243.         print("  Qt version:     %s" % QT_VERSION_STR)

  3244.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3245.         print("  Binary dir:     %s" % pathBinaries)

  3246.         print("  Resources dir:  %s" % pathResources)

  3247. 

  3248.     # --------------------------------------------------------------------------------------------------------

  3249.     # Init host

  3250. 

  3251.     if failError:

  3252.         # no try

  3253.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3254.     else:

  3255.         try:

  3256.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3257.         except:

  3258.             host = CarlaHostQtNull()

  3259. 

  3260.     host.isControl = isControl

  3261.     host.isPlugin  = isPlugin

  3262. 

  3263.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3264.     host.set_file_callback(fileCallback)

  3265. 

  3266.     # If it's a plugin the paths are already set

  3267.     if not isPlugin:

  3268.         host.pathBinaries  = pathBinaries

  3269.         host.pathResources = pathResources

  3270.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3271.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3272. 

  3273.         if not isControl:

  3274.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3275. 

  3276.     # --------------------------------------------------------------------------------------------------------

  3277.     # Init utils

  3278. 

  3279.     gCarla.utils = CarlaUtils(utilsname)

  3280.     gCarla.utils.set_process_name(os.path.basename(initName))

  3281. 

  3282.     try:

  3283.         sys.stdout.flush()

  3284.     except:

  3285.         pass

  3286. 

  3287.     sys.stdout = CarlaPrint(False)

  3288.     sys.stderr = CarlaPrint(True)

  3289.     sys.excepthook = sys_excepthook

  3290. 

  3291.     # --------------------------------------------------------------------------------------------------------

  3292.     # Done

  3293. 

  3294.     return host

  3295. 

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

  3297. # Load host settings

  3298. 

  3299. def loadHostSettings(host):

  3300.     # kdevelop likes this :)

  3301.     if False: host = CarlaHostNull()

  3302. 

  3303.     settings = QSafeSettings("falkTX", "Carla2")

  3304. 

  3305.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3306.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3307.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3308.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3309.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3310.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3311.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3312.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3313.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3314.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3315.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3316.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3317.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3318.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3319. 

  3320.     if host.isPlugin:

  3321.         return

  3322. 

  3323.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3324. 

  3325.     # enums

  3326.     if host.audioDriverForced is None:

  3327.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3328. 

  3329.     if not host.processModeForced:

  3330.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3331. 

  3332.     host.nextProcessMode = host.processMode

  3333. 

  3334.     # --------------------------------------------------------------------------------------------------------

  3335.     # fix things if needed

  3336. 

  3337.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3338.         if LADISH_APP_NAME:

  3339.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3340.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3341. 

  3342.         else:

  3343.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3344. 

  3345.     if gCarla.nogui:

  3346.         host.showLogs = False

  3347. 

  3348.     # --------------------------------------------------------------------------------------------------------

  3349.     # run headless host now if nogui option enabled

  3350. 

  3351.     if gCarla.nogui:

  3352.         runHostWithoutUI(host)

  3353. 

  3354. # ------------------------------------------------------------------------------------------------------------

  3355. # Set host settings

  3356. 

  3357. def setHostSettings(host):

  3358.     # kdevelop likes this :)

  3359.     if False: host = CarlaHostNull()

  3360. 

  3361.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3362.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3363.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3364.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3365.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3366.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3367.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3368.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3369. 

  3370.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3371.         return

  3372. 

  3373.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3374.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3375.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3376. 

  3377.     if not (NSM_URL and host.nsmOK):

  3378.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3379. 

  3380. # ------------------------------------------------------------------------------------------------------------

  3381. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3382. 

  3383. def setEngineSettings(host, oscPort = None):

  3384.     # kdevelop likes this :)

  3385.     if False: host = CarlaHostNull()

  3386. 

  3387.     # --------------------------------------------------------------------------------------------------------

  3388.     # do nothing if control

  3389. 

  3390.     if host.isControl:

  3391.         return "Control"

  3392. 

  3393.     # --------------------------------------------------------------------------------------------------------

  3394. 

  3395.     settings = QSafeSettings("falkTX", "Carla2")

  3396. 

  3397.     # --------------------------------------------------------------------------------------------------------

  3398.     # main settings

  3399. 

  3400.     setHostSettings(host)

  3401. 

  3402.     # --------------------------------------------------------------------------------------------------------

  3403.     # file paths

  3404. 

  3405.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3406.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3407. 

  3408.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3409.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3410. 

  3411.     # --------------------------------------------------------------------------------------------------------

  3412.     # plugin paths

  3413. 

  3414.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3415.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3416.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3417.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3418.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3419.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3420.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3421.     JSFX_PATH   = settings.value(CARLA_KEY_PATHS_JSFX,   CARLA_DEFAULT_JSFX_PATH, list)

  3422. 

  3423.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3424.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3425.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3426.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3427.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3428.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3429.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3430.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_JSFX,   splitter.join(JSFX_PATH))

  3431. 

  3432.     # --------------------------------------------------------------------------------------------------------

  3433.     # don't continue if plugin

  3434. 

  3435.     if host.isPlugin:

  3436.         return "Plugin"

  3437. 

  3438.     # --------------------------------------------------------------------------------------------------------

  3439.     # osc settings

  3440. 

  3441.     if oscPort is not None and isinstance(oscPort, int):

  3442.         oscEnabled = True

  3443.         portNumTCP = portNumUDP = oscPort

  3444. 

  3445.     else:

  3446.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3447. 

  3448.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3449.             portNumTCP = -1

  3450.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3451.             portNumTCP = 0

  3452.         else:

  3453.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3454. 

  3455.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3456.             portNumUDP = -1

  3457.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3458.             portNumUDP = 0

  3459.         else:

  3460.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3461. 

  3462.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3463.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3464.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3465. 

  3466.     # --------------------------------------------------------------------------------------------------------

  3467.     # wine settings

  3468. 

  3469.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3470.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3471.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3472.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3473.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3474.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3475. 

  3476.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3477.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3478.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3479.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3480.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3481.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3482. 

  3483.     # --------------------------------------------------------------------------------------------------------

  3484.     # driver and device settings

  3485. 

  3486.     # driver name

  3487.     if host.audioDriverForced is not None:

  3488.         audioDriver = host.audioDriverForced

  3489.     else:

  3490.         try:

  3491.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3492.         except:

  3493.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3494. 

  3495.     # driver options

  3496.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3497.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3498.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3499.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3500. 

  3501.     # Only setup audio things if engine is not running

  3502.     if not host.is_engine_running():

  3503.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3504.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3505. 

  3506.         if not audioDriver.startswith("JACK"):

  3507.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3508.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3509.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3510. 

  3511.     # --------------------------------------------------------------------------------------------------------

  3512.     # fix things if needed

  3513. 

  3514.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3515.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3516.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3517. 

  3518.     # --------------------------------------------------------------------------------------------------------

  3519.     # return selected driver name

  3520. 

  3521.     return audioDriver

  3522. 

  3523. # ------------------------------------------------------------------------------------------------------------

  3524. # Run Carla without showing UI

  3525. 

  3526. def runHostWithoutUI(host):

  3527.     # kdevelop likes this :)

  3528.     if False: host = CarlaHostNull()

  3529. 

  3530.     # --------------------------------------------------------------------------------------------------------

  3531.     # Some initial checks

  3532. 

  3533.     if not gCarla.nogui:

  3534.         return

  3535. 

  3536.     projectFile = getInitialProjectFile(True)

  3537. 

  3538.     if gCarla.nogui is True:

  3539.         oscPort = None

  3540. 

  3541.         if not projectFile:

  3542.             print("Carla no-gui mode can only be used together with a project file.")

  3543.             sys.exit(1)

  3544. 

  3545.     else:

  3546.         oscPort = gCarla.nogui

  3547. 

  3548.     # --------------------------------------------------------------------------------------------------------

  3549.     # Additional imports

  3550. 

  3551.     from time import sleep

  3552. 

  3553.     # --------------------------------------------------------------------------------------------------------

  3554.     # Init engine

  3555. 

  3556.     audioDriver = setEngineSettings(host, oscPort)

  3557.     if not host.engine_init(audioDriver, "Carla"):

  3558.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3559.         sys.exit(1)

  3560. 

  3561.     if projectFile and not host.load_project(projectFile):

  3562.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3563.         host.engine_close()

  3564.         sys.exit(1)

  3565. 

  3566.     # --------------------------------------------------------------------------------------------------------

  3567.     # Idle

  3568. 

  3569.     print("Carla ready!")

  3570. 

  3571.     while host.is_engine_running() and not gCarla.term:

  3572.         host.engine_idle()

  3573.         sleep(0.0333) # 30 Hz

  3574. 

  3575.     # --------------------------------------------------------------------------------------------------------

  3576.     # Stop

  3577. 

  3578.     host.engine_close()

  3579.     sys.exit(0)

  3580. 

  3581. # ------------------------------------------------------------------------------------------------------------