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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2016 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 (Config)

  21. 

  22. from carla_config import *

  23. 

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

  25. # Imports (Global)

  26. 

  27. if config_UseQt5:

  28.     from PyQt5.QtCore import qCritical, QFileInfo, QModelIndex, QPointF, QTimer

  29.     from PyQt5.QtGui import QImage, QPalette

  30.     from PyQt5.QtWidgets import QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QMainWindow

  31. else:

  32.     from PyQt4.QtCore import qCritical, QFileInfo, QModelIndex, QPointF, QTimer

  33.     from PyQt4.QtGui import QImage, QPalette

  34.     from PyQt4.QtGui import QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QMainWindow

  35. 

  36. # ------------------------------------------------------------------------------------------------------------

  37. # Imports (Custom)

  38. 

  39. import patchcanvas

  40. import ui_carla_host

  41. 

  42. from carla_app import *

  43. from carla_database import *

  44. from carla_settings import *

  45. from carla_utils import *

  46. from carla_widgets import *

  47. 

  48. from digitalpeakmeter import DigitalPeakMeter

  49. from pixmapkeyboard import PixmapKeyboardHArea

  50. 

  51. # ------------------------------------------------------------------------------------------------------------

  52. # Try Import OpenGL

  53. 

  54. try:

  55.     if config_UseQt5:

  56.         from PyQt5.QtOpenGL import QGLWidget

  57.     else:

  58.         from PyQt4.QtOpenGL import QGLWidget

  59.     hasGL = True

  60. except:

  61.     hasGL = False

  62. 

  63. # ------------------------------------------------------------------------------------------------------------

  64. # Session Management support

  65. 

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

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

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

  69. 

  70. # ------------------------------------------------------------------------------------------------------------

  71. # Carla Print class

  72. 

  73. class CarlaPrint:

  74.     def __init__(self, err):

  75.         self.err = err

  76. 

  77.     def flush(self):

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

  79. 

  80.     def write(self, string):

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

  82. 

  83. # ------------------------------------------------------------------------------------------------------------

  84. # Host Window

  85. 

  86. class HostWindow(QMainWindow):

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

  88.     # signals

  89.     SIGTERM = pyqtSignal()

  90.     SIGUSR1 = pyqtSignal()

  91. 

  92.     # --------------------------------------------------------------------------------------------------------

  93. 

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

  95.         QMainWindow.__init__(self, parent)

  96.         self.host = host

  97.         self.ui = ui_carla_host.Ui_CarlaHostW()

  98.         self.ui.setupUi(self)

  99.         gCarla.gui = self

  100. 

  101.         if False:

  102.             # kdevelop likes this :)

  103.             host = CarlaHostNull()

  104.             self.host = host

  105. 

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

  107. 

  108.         self.fParentOrSelf = parent or self

  109. 

  110.         # ----------------------------------------------------------------------------------------------------

  111.         # Internal stuff

  112. 

  113.         self.fIdleTimerFast = 0

  114.         self.fIdleTimerSlow = 0

  115. 

  116.         self.fLadspaRdfNeedsUpdate = True

  117.         self.fLadspaRdfList = []

  118. 

  119.         self.fPluginCount = 0

  120.         self.fPluginList  = []

  121. 

  122.         self.fProjectFilename  = ""

  123.         self.fIsProjectLoading = False

  124.         self.fCurrentlyRemovingAllPlugins = False

  125. 

  126.         self.fLastTransportBPM   = 0.0

  127.         self.fLastTransportFrame = 0

  128.         self.fLastTransportState = False

  129.         self.fSampleRate         = 0.0

  130. 

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

  132.         # 1 for close carla, 2 for load project

  133.         self.fCustomStopAction = 0

  134. 

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

  136.         self.fFirstEngineInit = True

  137. 

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

  139.         self.fSavedSettings = {}

  140. 

  141.         if host.isControl:

  142.             self.fClientName         = "Carla-Control"

  143.             self.fSessionManagerName = "Control"

  144.         elif host.isPlugin:

  145.             self.fClientName         = "Carla-Plugin"

  146.             self.fSessionManagerName = "Plugin"

  147.         elif LADISH_APP_NAME:

  148.             self.fClientName         = LADISH_APP_NAME

  149.             self.fSessionManagerName = "LADISH"

  150.         elif NSM_URL and host.nsmOK:

  151.             self.fClientName         = "Carla.tmp"

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

  153.         else:

  154.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  155.             self.fSessionManagerName = ""

  156. 

  157.         # ----------------------------------------------------------------------------------------------------

  158.         # Internal stuff (patchbay)

  159. 

  160.         self.fExportImage = QImage()

  161. 

  162.         self.fPeaksCleared = True

  163. 

  164.         self.fExternalPatchbay = False

  165.         self.fSelectedPlugins  = []

  166. 

  167.         self.fCanvasWidth  = 0

  168.         self.fCanvasHeight = 0

  169.         self.fMiniCanvasUpdateTimeout = 0

  170. 

  171.         self.fWithCanvas = withCanvas

  172. 

  173.         # ----------------------------------------------------------------------------------------------------

  174.         # Set up GUI (engine stopped)

  175. 

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

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

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

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

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

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

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

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

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

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

  186. 

  187.             if self.host.isControl:

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

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

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

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

  192.                 self.ui.act_plugin_add.setVisible(False)

  193.                 self.ui.act_plugin_add2.setVisible(False)

  194.                 self.ui.act_plugin_remove_all.setVisible(False)

  195.                 self.ui.menu_Plugin.setEnabled(False)

  196.                 self.ui.menu_Plugin.setVisible(False)

  197.                 self.ui.menu_Plugin.menuAction().setVisible(False)

  198.             else:

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

  200. 

  201.         else:

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

  203. 

  204.             if WINDOWS:

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

  206. 

  207.         if not self.host.isControl:

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

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

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

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

  212. 

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

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

  215. 

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

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

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

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

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

  221. 

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

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

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

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

  226. 

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

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

  229. 

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

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

  232. 

  233.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  251.             self.ui.miniCanvasPreview.hide()

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

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

  254. 

  255.             if host.isControl:

  256.                 self.ui.dockWidget.hide()

  257. 

  258.         # ----------------------------------------------------------------------------------------------------

  259.         # Set up GUI (disk)

  260. 

  261.         self.fDirModel = QFileSystemModel(self)

  262.         self.fDirModel.setRootPath(HOME)

  263.         self.fDirModel.setNameFilters(gCarla.utils.get_supported_file_extensions().split(";"))

  264. 

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

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

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

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

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

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

  271. 

  272.         # ----------------------------------------------------------------------------------------------------

  273.         # Set up GUI (transport)

  274. 

  275.         fontMetrics   = QFontMetrics(self.ui.l_transport_bbt.font())

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

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

  278. 

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

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

  281. 

  282.         if minLabelWidth < labelTimeWidth:

  283.             minLabelWidth = labelTimeWidth

  284.         if minLabelWidth < labelBBTWidth:

  285.             minLabelWidth = labelBBTWidth

  286. 

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

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

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

  290. 

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

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

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

  294. 

  295.         if host.isPlugin:

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

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

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

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

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

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

  302. 

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

  304. 

  305.         # ----------------------------------------------------------------------------------------------------

  306.         # Set up GUI (rack)

  307. 

  308.         self.ui.listWidget.setHost(self.host)

  309. 

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

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

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

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

  314. 

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

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

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

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

  319. 

  320.         self.ui.rack.setStyleSheet("""

  321.           QLabel#pad_left {

  322.             background-image: url(:/bitmaps/rack_padding_left.png);

  323.             background-repeat: repeat-y;

  324.           }

  325.           QLabel#pad_right {

  326.             background-image: url(:/bitmaps/rack_padding_right.png);

  327.             background-repeat: repeat-y;

  328.           }

  329.           CarlaRackList#CarlaRackList {

  330.             background-color: black;

  331.           }

  332.         """)

  333. 

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

  335.         # Set up GUI (patchbay)

  336. 

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

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

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

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

  341. 

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

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

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

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

  346. 

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

  348.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  350. 

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

  352. 

  353.         self.ui.miniCanvasPreview.setRealParent(self)

  354. 

  355.         # ----------------------------------------------------------------------------------------------------

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

  357. 

  358.         if MACOS:

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

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

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

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

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

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

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

  366. 

  367.         # ----------------------------------------------------------------------------------------------------

  368.         # Load Settings

  369. 

  370.         self.loadSettings(True)

  371. 

  372.         # ----------------------------------------------------------------------------------------------------

  373.         # Set-up Canvas

  374. 

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

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

  377.         self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, bool(self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL))

  378. 

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

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

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

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

  383. 

  384.         self.setupCanvas()

  385. 

  386.         # ----------------------------------------------------------------------------------------------------

  387.         # Connect actions to functions

  388. 

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

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

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

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

  393. 

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

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

  396. 

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

  398.         self.ui.act_plugin_add2.triggered.connect(self.slot_pluginAdd)

  399.         self.ui.act_plugin_remove_all.triggered.connect(self.slot_pluginRemoveAll)

  400. 

  401.         self.ui.act_add_jack.triggered.connect(self.slot_jackAppAdd)

  402. 

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

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

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

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

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

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

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

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

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

  412.         self.ui.act_plugins_panic.triggered.connect(self.slot_pluginsDisable)

  413. 

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

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

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

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

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

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

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

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

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

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

  424. 

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

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

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

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

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

  430. 

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

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

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

  434. 

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

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

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

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

  439. 

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

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

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

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

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

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

  446. 

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

  448. 

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

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

  451. 

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

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

  454. 

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

  456. 

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

  458. 

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

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

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

  462. 

  463.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  464.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  465. 

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

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

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

  469. 

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

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

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

  473. 

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

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

  476. 

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

  478. 

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

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

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

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

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

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

  485.         host.PatchbayPortRenamedCallback.connect(self.slot_handlePatchbayPortRenamedCallback)

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

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

  488. 

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

  490. 

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

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

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

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

  495. 

  496.         # ----------------------------------------------------------------------------------------------------

  497.         # Final setup

  498. 

  499.         self.ui.text_logs.clear()

  500.         self.setProperWindowTitle()

  501. 

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

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

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

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

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

  507. 

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

  509.         if self.host.isPlugin:

  510.             self.startTimers()

  511. 

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

  513.         if host.processModeForced and host.processMode == ENGINE_PROCESS_MODE_PATCHBAY and not host.isControl:

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

  515. 

  516.         # Load initial project file if set

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

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

  519. 

  520.             if projectFile:

  521.                 self.loadProjectLater(projectFile)

  522. 

  523.         # For NSM we wait for the open message

  524.         if NSM_URL and host.nsmOK:

  525.             host.nsm_ready(-1)

  526.             return

  527. 

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

  529. 

  530.     # --------------------------------------------------------------------------------------------------------

  531.     # Setup

  532. 

  533.     def compactPlugin(self, pluginId):

  534.         if pluginId > self.fPluginCount:

  535.             return

  536. 

  537.         pitem = self.fPluginList[pluginId]

  538. 

  539.         if pitem is None:

  540.             return

  541. 

  542.         pitem.recreateWidget(True)

  543. 

  544.     def setLoadRDFsNeeded(self):

  545.         self.fLadspaRdfNeedsUpdate = True

  546. 

  547.     def setProperWindowTitle(self):

  548.         title = self.fClientName

  549. 

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

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

  552.         if self.fSessionManagerName:

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

  554. 

  555.         self.setWindowTitle(title)

  556. 

  557.     # --------------------------------------------------------------------------------------------------------

  558.     # Files

  559. 

  560.     def loadProjectNow(self):

  561.         if not self.fProjectFilename:

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

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

  564.             return

  565. 

  566.         self.projectLoadingStarted()

  567.         self.fIsProjectLoading = True

  568. 

  569.         self.host.load_project(self.fProjectFilename)

  570. 

  571.         self.fIsProjectLoading = False

  572.         self.projectLoadingFinished()

  573. 

  574.     def loadProjectLater(self, filename):

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

  576.         self.setProperWindowTitle()

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

  578. 

  579.     def saveProjectNow(self):

  580.         if not self.fProjectFilename:

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

  582. 

  583.         self.host.save_project(self.fProjectFilename)

  584. 

  585.     def projectLoadingStarted(self):

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

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

  588. 

  589.     def projectLoadingFinished(self):

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

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

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

  593. 

  594.     # --------------------------------------------------------------------------------------------------------

  595.     # Files (menu actions)

  596. 

  597.     @pyqtSlot()

  598.     def slot_fileNew(self):

  599.         self.slot_pluginRemoveAll()

  600.         self.fProjectFilename = ""

  601.         self.setProperWindowTitle()

  602. 

  603.     @pyqtSlot()

  604.     def slot_fileOpen(self):

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

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

  607. 

  608.         if config_UseQt5:

  609.             filename = filename[0]

  610.         if not filename:

  611.             return

  612. 

  613.         newFile = True

  614. 

  615.         if self.fPluginCount > 0:

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

  617.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  619. 

  620.         if newFile:

  621.             self.slot_pluginRemoveAll()

  622.             self.fProjectFilename = filename

  623.             self.setProperWindowTitle()

  624.             self.loadProjectNow()

  625.         else:

  626.             filenameOld = self.fProjectFilename

  627.             self.fProjectFilename = filename

  628.             self.loadProjectNow()

  629.             self.fProjectFilename = filenameOld

  630. 

  631.     @pyqtSlot()

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

  633.         if self.fProjectFilename and not saveAs:

  634.             return self.saveProjectNow()

  635. 

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

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

  638. 

  639.         if config_UseQt5:

  640.             filename = filename[0]

  641.         if not filename:

  642.             return

  643. 

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

  645.             filename += ".carxp"

  646. 

  647.         if self.fProjectFilename != filename:

  648.             self.fProjectFilename = filename

  649.             self.setProperWindowTitle()

  650. 

  651.         self.saveProjectNow()

  652. 

  653.     @pyqtSlot()

  654.     def slot_fileSaveAs(self):

  655.         self.slot_fileSave(True)

  656. 

  657.     @pyqtSlot()

  658.     def slot_loadProjectNow(self):

  659.         self.loadProjectNow()

  660. 

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

  662.     # Engine (menu actions)

  663. 

  664.     @pyqtSlot()

  665.     def slot_engineStart(self):

  666.         audioDriver = setEngineSettings(self.host)

  667.         firstInit   = self.fFirstEngineInit

  668. 

  669.         self.fFirstEngineInit = False

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

  671. 

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

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

  674.             return

  675. 

  676.         elif firstInit:

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

  678.             return

  679. 

  680.         audioError = self.host.get_last_error()

  681. 

  682.         if audioError:

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

  684.         else:

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

  686. 

  687.     @pyqtSlot()

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

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

  690. 

  691.         if self.fPluginCount == 0:

  692.             self.engineStopFinal()

  693.             return True

  694. 

  695.         if not forced:

  696.             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"

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

  698.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  699.             if ask != QMessageBox.Yes:

  700.                 return False

  701. 

  702.         return self.slot_engineStopTryAgain()

  703. 

  704.     @pyqtSlot()

  705.     def slot_engineStopTryAgain(self):

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

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

  708.             return False

  709. 

  710.         self.engineStopFinal()

  711.         return True

  712. 

  713.     def engineStopFinal(self):

  714.         self.killTimers()

  715.         self.removeAllPlugins()

  716. 

  717.         if self.host.is_engine_running():

  718.             self.host.remove_all_plugins()

  719. 

  720.             if self.host.engine_close():

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

  722.             else:

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

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

  725. 

  726.         if self.fCustomStopAction == 1:

  727.             self.close()

  728.         elif self.fCustomStopAction == 2:

  729.             self.slot_engineStart()

  730.             self.loadProjectNow()

  731.             self.host.nsm_ready(2) # open

  732. 

  733.         self.fCustomStopAction = 0

  734. 

  735.     # --------------------------------------------------------------------------------------------------------

  736.     # Engine (host callbacks)

  737. 

  738.     @pyqtSlot(int, int, str)

  739.     def slot_handleEngineStartedCallback(self, processMode, transportMode, driverName):

  740.         self.fSampleRate = self.host.get_sample_rate()

  741. 

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

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

  744. 

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

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

  747. 

  748.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not (self.host.isControl or self.host.isPlugin):

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

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

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

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

  753.         else:

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

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

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

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

  758. 

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

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

  761. 

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

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

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

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

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

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

  768. 

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

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

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

  772. 

  773.         self.refreshTransport(True)

  774. 

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

  776.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK")

  777. 

  778.         self.startTimers()

  779. 

  780.     @pyqtSlot()

  781.     def slot_handleEngineStoppedCallback(self):

  782.         patchcanvas.clear()

  783.         self.killTimers()

  784. 

  785.         # just in case

  786.         self.removeAllPlugins()

  787. 

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

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

  790. 

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

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

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

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

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

  796. 

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

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

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

  800. 

  801.     @pyqtSlot(float)

  802.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  803.         self.fSampleRate = newSampleRate

  804.         self.refreshTransport(True)

  805. 

  806.     # --------------------------------------------------------------------------------------------------------

  807.     # Plugins

  808. 

  809.     def removeAllPlugins(self):

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

  811.         patchcanvas.handleAllPluginsRemoved()

  812. 

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

  814.             pass

  815. 

  816.         self.clearSideStuff()

  817. 

  818.         for pitem in self.fPluginList:

  819.             if pitem is None:

  820.                 continue

  821. 

  822.             pitem.close()

  823.             del pitem

  824. 

  825.         self.fPluginCount = 0

  826.         self.fPluginList  = []

  827. 

  828.     # --------------------------------------------------------------------------------------------------------

  829.     # Plugins (menu actions)

  830. 

  831.     def showAddPluginDialog(self):

  832.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  833. 

  834.         if not dialog.exec_():

  835.             return

  836. 

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

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

  839.             return

  840. 

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

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

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

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

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

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

  847. 

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

  849. 

  850.     def showAddJackAppDialog(self):

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

  852. 

  853.         if not dialog.exec_():

  854.             return

  855. 

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

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

  858.             return

  859. 

  860.         return dialog.getCommandAndFlags()

  861. 

  862.     @pyqtSlot()

  863.     def showPluginActionsMenu(self):

  864.         menu = QMenu(self)

  865. 

  866.         if config_UseQt5:

  867.             menu.addSection("Plugins")

  868.         else:

  869.             # fake section

  870.             act  = menu.addAction("  Plugins")

  871.             font = act.font()

  872.             font.setBold(True)

  873.             act.setFont(font)

  874.             act.setEnabled(False)

  875.             menu.addSeparator()

  876. 

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

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

  879. 

  880.         if config_UseQt5:

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

  882.         else:

  883.             # fake space

  884.             act  = menu.addAction(" ")

  885.             font = act.font()

  886.             font.setBold(True)

  887.             font.setPointSize(font.pointSize()/2)

  888.             act.setEnabled(False)

  889. 

  890.             # fake section

  891.             act  = menu.addAction("  All plugins (macros)")

  892.             font = act.font()

  893.             font.setBold(True)

  894.             act.setFont(font)

  895.             act.setEnabled(False)

  896.             menu.addSeparator()

  897. 

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

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

  900.         menu.addSeparator()

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

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

  903.         menu.addSeparator()

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

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

  906.         menu.addSeparator()

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

  908.         menu.addSeparator()

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

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

  911. 

  912.         menu.exec_(QCursor.pos())

  913. 

  914.     @pyqtSlot()

  915.     def slot_pluginAdd(self):

  916.         data = self.showAddPluginDialog()

  917. 

  918.         if data is None:

  919.             return

  920. 

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

  922. 

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

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

  925. 

  926.     @pyqtSlot()

  927.     def slot_pluginRemoveAll(self):

  928.         if self.fPluginCount == 0:

  929.             return

  930. 

  931.         # FIXME - this is not working

  932.         # removing a plugin causes flicker, the rack-list becomes empty for some time

  933.         # this breaks the remove-all animation, so don't bother using it

  934.         if False and not self.host.isPlugin:

  935.             self.projectLoadingStarted()

  936. 

  937.             app = QApplication.instance()

  938.             app.processEvents()

  939. 

  940.             for i in reversed(range(self.fPluginCount)):

  941.                 self.host.remove_plugin(i)

  942.                 app.processEvents()

  943. 

  944.             self.projectLoadingFinished()

  945. 

  946.         self.fCurrentlyRemovingAllPlugins = True

  947.         ok = self.host.remove_all_plugins()

  948.         self.fCurrentlyRemovingAllPlugins = False

  949. 

  950.         if ok:

  951.             self.removeAllPlugins()

  952.         else:

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

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

  955. 

  956.         self.fCurrentlyRemovingAllPlugins = False

  957. 

  958.     @pyqtSlot()

  959.     def slot_jackAppAdd(self):

  960.         data = self.showAddJackAppDialog()

  961. 

  962.         if data is None:

  963.             return

  964. 

  965.         filename, name, label = data

  966. 

  967.         if not filename:

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

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

  970.             return

  971. 

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

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

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

  975. 

  976.     # --------------------------------------------------------------------------------------------------------

  977.     # Plugins (macros)

  978. 

  979.     @pyqtSlot()

  980.     def slot_pluginsEnable(self):

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

  982.             return

  983. 

  984.         for pitem in self.fPluginList:

  985.             if pitem is None:

  986.                 break

  987. 

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

  989. 

  990.     @pyqtSlot()

  991.     def slot_pluginsDisable(self):

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

  993.             return

  994. 

  995.         for pitem in self.fPluginList:

  996.             if pitem is None:

  997.                 break

  998. 

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

  1000. 

  1001.     @pyqtSlot()

  1002.     def slot_pluginsVolume100(self):

  1003.         if not self.host.is_engine_running():

  1004.             return

  1005. 

  1006.         for pitem in self.fPluginList:

  1007.             if pitem is None:

  1008.                 break

  1009. 

  1010.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1011. 

  1012.     @pyqtSlot()

  1013.     def slot_pluginsMute(self):

  1014.         if not self.host.is_engine_running():

  1015.             return

  1016. 

  1017.         for pitem in self.fPluginList:

  1018.             if pitem is None:

  1019.                 break

  1020. 

  1021.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1022. 

  1023.     @pyqtSlot()

  1024.     def slot_pluginsWet100(self):

  1025.         if not self.host.is_engine_running():

  1026.             return

  1027. 

  1028.         for pitem in self.fPluginList:

  1029.             if pitem is None:

  1030.                 break

  1031. 

  1032.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1033. 

  1034.     @pyqtSlot()

  1035.     def slot_pluginsBypass(self):

  1036.         if not self.host.is_engine_running():

  1037.             return

  1038. 

  1039.         for pitem in self.fPluginList:

  1040.             if pitem is None:

  1041.                 break

  1042. 

  1043.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1044. 

  1045.     @pyqtSlot()

  1046.     def slot_pluginsCenter(self):

  1047.         if not self.host.is_engine_running():

  1048.             return

  1049. 

  1050.         for pitem in self.fPluginList:

  1051.             if pitem is None:

  1052.                 break

  1053. 

  1054.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1055.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1056.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1057. 

  1058.     @pyqtSlot()

  1059.     def slot_pluginsCompact(self):

  1060.         for pitem in self.fPluginList:

  1061.             if pitem is None:

  1062.                 break

  1063.             pitem.compact()

  1064. 

  1065.     @pyqtSlot()

  1066.     def slot_pluginsExpand(self):

  1067.         for pitem in self.fPluginList:

  1068.             if pitem is None:

  1069.                 break

  1070.             pitem.expand()

  1071. 

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

  1073.     # Plugins (host callbacks)

  1074. 

  1075.     @pyqtSlot(int, str)

  1076.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1077.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1078. 

  1079.         self.fPluginList.append(pitem)

  1080.         self.fPluginCount += 1

  1081. 

  1082.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1083. 

  1084.     @pyqtSlot(int)

  1085.     def slot_handlePluginRemovedCallback(self, pluginId):

  1086.         patchcanvas.handlePluginRemoved(pluginId)

  1087. 

  1088.         if pluginId in self.fSelectedPlugins:

  1089.             self.clearSideStuff()

  1090. 

  1091.         pitem = self.getPluginItem(pluginId)

  1092. 

  1093.         self.fPluginCount -= 1

  1094.         self.fPluginList.pop(pluginId)

  1095.         self.ui.listWidget.takeItem(pluginId)

  1096. 

  1097.         if pitem is not None:

  1098.             pitem.close()

  1099.             del pitem

  1100. 

  1101.         # push all plugins 1 slot back

  1102.         for i in range(pluginId, self.fPluginCount):

  1103.             pitem = self.fPluginList[i]

  1104.             pitem.setPluginId(i)

  1105. 

  1106.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1107. 

  1108.     # --------------------------------------------------------------------------------------------------------

  1109.     # Canvas

  1110. 

  1111.     def clearSideStuff(self):

  1112.         self.scene.clearSelection()

  1113. 

  1114.         self.fSelectedPlugins = []

  1115. 

  1116.         self.ui.keyboard.allNotesOff(False)

  1117.         self.ui.scrollArea.setEnabled(False)

  1118. 

  1119.         self.fPeaksCleared = True

  1120.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1121.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1122.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1123.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1124. 

  1125.     def setupCanvas(self):

  1126.         pOptions = patchcanvas.options_t()

  1127.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1128.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1129.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1130.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1131.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1132. 

  1133.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1134.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1135.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1136.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1137.         else:

  1138.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1139. 

  1140.         pFeatures = patchcanvas.features_t()

  1141.         pFeatures.group_info   = False

  1142.         pFeatures.group_rename = False

  1143.         pFeatures.port_info    = False

  1144.         pFeatures.port_rename  = False

  1145.         pFeatures.handle_group_pos = True

  1146. 

  1147.         patchcanvas.setOptions(pOptions)

  1148.         patchcanvas.setFeatures(pFeatures)

  1149.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1150. 

  1151.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1152. 

  1153.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1154.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1155.             self.fCanvasHeight = int(tryCanvasSize[1])

  1156.         else:

  1157.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1158.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1159. 

  1160.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1161.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1162.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1163. 

  1164.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1165.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1166. 

  1167.     def updateCanvasInitialPos(self):

  1168.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1169.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1170.         patchcanvas.setInitialPos(x, y)

  1171. 

  1172.     def updateMiniCanvasLater(self):

  1173.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1174. 

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

  1176.     # Canvas (menu actions)

  1177. 

  1178.     @pyqtSlot()

  1179.     def slot_canvasShowInternal(self):

  1180.         self.fExternalPatchbay = False

  1181.         self.ui.act_canvas_show_internal.blockSignals(True)

  1182.         self.ui.act_canvas_show_external.blockSignals(True)

  1183.         self.ui.act_canvas_show_internal.setChecked(True)

  1184.         self.ui.act_canvas_show_external.setChecked(False)

  1185.         self.ui.act_canvas_show_internal.blockSignals(False)

  1186.         self.ui.act_canvas_show_external.blockSignals(False)

  1187.         self.slot_canvasRefresh()

  1188. 

  1189.     @pyqtSlot()

  1190.     def slot_canvasShowExternal(self):

  1191.         self.fExternalPatchbay = True

  1192.         self.ui.act_canvas_show_internal.blockSignals(True)

  1193.         self.ui.act_canvas_show_external.blockSignals(True)

  1194.         self.ui.act_canvas_show_internal.setChecked(False)

  1195.         self.ui.act_canvas_show_external.setChecked(True)

  1196.         self.ui.act_canvas_show_internal.blockSignals(False)

  1197.         self.ui.act_canvas_show_external.blockSignals(False)

  1198.         self.slot_canvasRefresh()

  1199. 

  1200.     @pyqtSlot()

  1201.     def slot_canvasArrange(self):

  1202.         patchcanvas.arrange()

  1203. 

  1204.     @pyqtSlot()

  1205.     def slot_canvasRefresh(self):

  1206.         patchcanvas.clear()

  1207. 

  1208.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1209.             return

  1210. 

  1211.         if self.host.is_engine_running():

  1212.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1213. 

  1214.         self.updateMiniCanvasLater()

  1215. 

  1216.     @pyqtSlot()

  1217.     def slot_canvasZoomFit(self):

  1218.         self.scene.zoom_fit()

  1219. 

  1220.     @pyqtSlot()

  1221.     def slot_canvasZoomIn(self):

  1222.         self.scene.zoom_in()

  1223. 

  1224.     @pyqtSlot()

  1225.     def slot_canvasZoomOut(self):

  1226.         self.scene.zoom_out()

  1227. 

  1228.     @pyqtSlot()

  1229.     def slot_canvasZoomReset(self):

  1230.         self.scene.zoom_reset()

  1231. 

  1232.     @pyqtSlot()

  1233.     def slot_canvasSaveImage(self):

  1234.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1235. 

  1236.         if config_UseQt5:

  1237.             newPath = newPath[0]

  1238.         if not newPath:

  1239.             return

  1240. 

  1241.         self.scene.clearSelection()

  1242. 

  1243.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1244.             imgFormat = "JPG"

  1245.         elif newPath.lower().endswith((".png",)):

  1246.             imgFormat = "PNG"

  1247.         else:

  1248.             # File-dialog may not auto-add the extension

  1249.             imgFormat = "PNG"

  1250.             newPath  += ".png"

  1251. 

  1252.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1253.         painter = QPainter(self.fExportImage)

  1254.         painter.save()

  1255.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1256.         painter.setRenderHint(QPainter.TextAntialiasing)

  1257.         self.scene.render(painter)

  1258.         self.fExportImage.save(newPath, imgFormat, 100)

  1259.         painter.restore()

  1260. 

  1261.     # --------------------------------------------------------------------------------------------------------

  1262.     # Canvas (canvas callbacks)

  1263. 

  1264.     @pyqtSlot(int, int, QPointF)

  1265.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1266.         self.updateMiniCanvasLater()

  1267. 

  1268.     @pyqtSlot(float)

  1269.     def slot_canvasScaleChanged(self, scale):

  1270.         self.ui.miniCanvasPreview.setViewScale(scale)

  1271. 

  1272.     @pyqtSlot(list)

  1273.     def slot_canvasPluginSelected(self, pluginList):

  1274.         self.ui.keyboard.allNotesOff(False)

  1275.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1276.         self.fSelectedPlugins = pluginList

  1277. 

  1278.     # --------------------------------------------------------------------------------------------------------

  1279.     # Canvas (host callbacks)

  1280. 

  1281.     @pyqtSlot(int, int, int, str)

  1282.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1283.         pcSplit = patchcanvas.SPLIT_UNDEF

  1284.         pcIcon  = patchcanvas.ICON_APPLICATION

  1285. 

  1286.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1287.             pcIcon = patchcanvas.ICON_PLUGIN

  1288.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1289.             pcIcon = patchcanvas.ICON_HARDWARE

  1290.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1291.             pass

  1292.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1293.             pcIcon = patchcanvas.ICON_DISTRHO

  1294.         elif clientIcon == PATCHBAY_ICON_FILE:

  1295.             pcIcon = patchcanvas.ICON_FILE

  1296. 

  1297.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1298. 

  1299.         self.updateMiniCanvasLater()

  1300. 

  1301.         if pluginId < 0:

  1302.             return

  1303.         if pluginId >= self.fPluginCount:

  1304.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1305.             return

  1306. 

  1307.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1308. 

  1309.     @pyqtSlot(int)

  1310.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1311.         patchcanvas.removeGroup(clientId)

  1312.         self.updateMiniCanvasLater()

  1313. 

  1314.     @pyqtSlot(int, str)

  1315.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1316.         patchcanvas.renameGroup(clientId, newClientName)

  1317.         self.updateMiniCanvasLater()

  1318. 

  1319.     @pyqtSlot(int, int, int)

  1320.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1321.         pcIcon = patchcanvas.ICON_APPLICATION

  1322. 

  1323.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1324.             pcIcon = patchcanvas.ICON_PLUGIN

  1325.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1326.             pcIcon = patchcanvas.ICON_HARDWARE

  1327.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1328.             pass

  1329.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1330.             pcIcon = patchcanvas.ICON_DISTRHO

  1331.         elif clientIcon == PATCHBAY_ICON_FILE:

  1332.             pcIcon = patchcanvas.ICON_FILE

  1333. 

  1334.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1335.         self.updateMiniCanvasLater()

  1336. 

  1337.         if pluginId < 0:

  1338.             return

  1339.         if pluginId >= self.fPluginCount:

  1340.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1341.             return

  1342. 

  1343.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1344. 

  1345.     @pyqtSlot(int, int, int, str)

  1346.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1347.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1348.             portMode = patchcanvas.PORT_MODE_INPUT

  1349.         else:

  1350.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1351. 

  1352.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1353.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1354.             isAlternate = False

  1355.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1356.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1357.             isAlternate = True

  1358.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1359.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1360.             isAlternate = False

  1361.         else:

  1362.             portType    = patchcanvas.PORT_TYPE_NULL

  1363.             isAlternate = False

  1364. 

  1365.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1366.         self.updateMiniCanvasLater()

  1367. 

  1368.     @pyqtSlot(int, int)

  1369.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1370.         patchcanvas.removePort(groupId, portId)

  1371.         self.updateMiniCanvasLater()

  1372. 

  1373.     @pyqtSlot(int, int, str)

  1374.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1375.         patchcanvas.renamePort(groupId, portId, newPortName)

  1376.         self.updateMiniCanvasLater()

  1377. 

  1378.     @pyqtSlot(int, int, int, int, int)

  1379.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1380.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1381.         self.updateMiniCanvasLater()

  1382. 

  1383.     @pyqtSlot(int, int, int)

  1384.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1385.         patchcanvas.disconnectPorts(connectionId)

  1386.         self.updateMiniCanvasLater()

  1387. 

  1388.     # --------------------------------------------------------------------------------------------------------

  1389.     # Settings

  1390. 

  1391.     def saveSettings(self):

  1392.         settings = QSettings()

  1393. 

  1394.         settings.setValue("Geometry", self.saveGeometry())

  1395. 

  1396.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1397. 

  1398.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1399. 

  1400.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1401. 

  1402.         diskFolders = []

  1403. 

  1404.         for i in range(self.ui.cb_disk.count()):

  1405.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1406. 

  1407.         settings.setValue("DiskFolders", diskFolders)

  1408. 

  1409.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1410.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1411.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1412.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1413. 

  1414.     def loadSettings(self, firstTime):

  1415.         settings = QSettings()

  1416. 

  1417.         if firstTime:

  1418.             self.restoreGeometry(settings.value("Geometry", b""))

  1419. 

  1420.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1421.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1422.             self.ui.toolBar.setEnabled(showToolbar)

  1423.             self.ui.toolBar.setVisible(showToolbar)

  1424. 

  1425.             #if settings.contains("SplitterState"):

  1426.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1427.             #else:

  1428.                 #self.ui.splitter.setSizes([210, 99999])

  1429. 

  1430.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1431.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1432.             self.ui.dockWidget.setEnabled(showSidePanel)

  1433.             self.ui.dockWidget.setVisible(showSidePanel)

  1434. 

  1435.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1436. 

  1437.             self.ui.cb_disk.setItemData(0, HOME)

  1438. 

  1439.             for i in range(len(diskFolders)):

  1440.                 if i == 0: continue

  1441.                 folder = diskFolders[i]

  1442.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1443. 

  1444.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1445.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1446. 

  1447.             showMeters = settings.value("ShowMeters", False, type=bool)

  1448.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1449.             self.ui.peak_in.setVisible(showMeters)

  1450.             self.ui.peak_out.setVisible(showMeters)

  1451. 

  1452.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1453.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1454.             self.ui.scrollArea.setVisible(showKeyboard)

  1455. 

  1456.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1457. 

  1458.         # TODO - complete this

  1459. 

  1460.         self.fSavedSettings = {

  1461.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1462.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1463.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1464.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1465.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1466.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1467.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1468.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1469.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1470.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1471.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1472.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1473.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1474.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1475.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1476.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1477.         }

  1478. 

  1479.         self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1480.                                                        CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1481. 

  1482.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1483. 

  1484.         setEngineSettings(self.host)

  1485.         self.restartTimersIfNeeded()

  1486. 

  1487.     # --------------------------------------------------------------------------------------------------------

  1488.     # Settings (helpers)

  1489. 

  1490.     @pyqtSlot()

  1491.     def slot_restoreCanvasScrollbarValues(self):

  1492.         settings = QSettings()

  1493.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1494.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1495. 

  1496.     # --------------------------------------------------------------------------------------------------------

  1497.     # Settings (menu actions)

  1498. 

  1499.     @pyqtSlot(bool)

  1500.     def slot_showSidePanel(self, yesNo):

  1501.         self.ui.dockWidget.setEnabled(yesNo)

  1502.         self.ui.dockWidget.setVisible(yesNo)

  1503. 

  1504.     @pyqtSlot(bool)

  1505.     def slot_showToolbar(self, yesNo):

  1506.         self.ui.toolBar.setEnabled(yesNo)

  1507.         self.ui.toolBar.setVisible(yesNo)

  1508. 

  1509.     @pyqtSlot(bool)

  1510.     def slot_showCanvasMeters(self, yesNo):

  1511.         self.ui.peak_in.setVisible(yesNo)

  1512.         self.ui.peak_out.setVisible(yesNo)

  1513.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1514. 

  1515.     @pyqtSlot(bool)

  1516.     def slot_showCanvasKeyboard(self, yesNo):

  1517.         self.ui.scrollArea.setVisible(yesNo)

  1518.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1519. 

  1520.     @pyqtSlot()

  1521.     def slot_configureCarla(self):

  1522.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1523.         if not dialog.exec_():

  1524.             return

  1525. 

  1526.         self.loadSettings(False)

  1527. 

  1528.         patchcanvas.clear()

  1529. 

  1530.         self.setupCanvas()

  1531.         self.slot_miniCanvasCheckAll()

  1532. 

  1533.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1534.             pass

  1535.         elif self.host.is_engine_running():

  1536.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1537. 

  1538.         for pitem in self.fPluginList:

  1539.             if pitem is None:

  1540.                 break

  1541.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1542.             pitem.recreateWidget()

  1543. 

  1544.     # --------------------------------------------------------------------------------------------------------

  1545.     # About (menu actions)

  1546. 

  1547.     @pyqtSlot()

  1548.     def slot_aboutCarla(self):

  1549.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1550. 

  1551.     @pyqtSlot()

  1552.     def slot_aboutJuce(self):

  1553.         JuceAboutW(self.fParentOrSelf).exec_()

  1554. 

  1555.     @pyqtSlot()

  1556.     def slot_aboutQt(self):

  1557.         QApplication.instance().aboutQt()

  1558. 

  1559.     # --------------------------------------------------------------------------------------------------------

  1560.     # Disk (menu actions)

  1561. 

  1562.     @pyqtSlot(int)

  1563.     def slot_diskFolderChanged(self, index):

  1564.         if index < 0:

  1565.             return

  1566.         elif index == 0:

  1567.             filename = HOME

  1568.             self.ui.b_disk_remove.setEnabled(False)

  1569.         else:

  1570.             filename = self.ui.cb_disk.itemData(index)

  1571.             self.ui.b_disk_remove.setEnabled(True)

  1572. 

  1573.         self.fDirModel.setRootPath(filename)

  1574.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1575. 

  1576.     @pyqtSlot()

  1577.     def slot_diskFolderAdd(self):

  1578.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1579. 

  1580.         if newPath:

  1581.             if newPath[-1] == os.sep:

  1582.                 newPath = newPath[:-1]

  1583.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1584.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1585.             self.ui.b_disk_remove.setEnabled(True)

  1586. 

  1587.     @pyqtSlot()

  1588.     def slot_diskFolderRemove(self):

  1589.         index = self.ui.cb_disk.currentIndex()

  1590. 

  1591.         if index <= 0:

  1592.             return

  1593. 

  1594.         self.ui.cb_disk.removeItem(index)

  1595. 

  1596.         if self.ui.cb_disk.currentIndex() == 0:

  1597.             self.ui.b_disk_remove.setEnabled(False)

  1598. 

  1599.     @pyqtSlot(QModelIndex)

  1600.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1601.         filename = self.fDirModel.filePath(modelIndex)

  1602. 

  1603.         if not self.ui.listWidget.isDragUrlValid(filename):

  1604.             return

  1605. 

  1606.         if not self.host.load_file(filename):

  1607.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1608.                              self.tr("Failed to load file"),

  1609.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1610. 

  1611.     # --------------------------------------------------------------------------------------------------------

  1612.     # Transport

  1613. 

  1614.     def refreshTransport(self, forced = False):

  1615.         if not self.isVisible():

  1616.             return

  1617.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1618.             return

  1619. 

  1620.         timeInfo = self.host.get_transport_info()

  1621.         playing  = timeInfo['playing']

  1622.         frame    = timeInfo['frame']

  1623.         bpm      = timeInfo['bpm']

  1624. 

  1625.         if playing != self.fLastTransportState or forced:

  1626.             if playing:

  1627.                 icon = getIcon("media-playback-pause")

  1628.                 self.ui.b_transport_play.setChecked(True)

  1629.                 self.ui.b_transport_play.setIcon(icon)

  1630.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1631.             else:

  1632.                 icon = getIcon("media-playback-start")

  1633.                 self.ui.b_transport_play.setChecked(False)

  1634.                 self.ui.b_transport_play.setIcon(icon)

  1635.                 #self.ui.b_play.setText(self.tr("&Play"))

  1636. 

  1637.             self.fLastTransportState = playing

  1638. 

  1639.         if frame != self.fLastTransportFrame or forced:

  1640.             self.fLastTransportFrame = frame

  1641. 

  1642.             time = frame / self.fSampleRate

  1643.             secs =  time % 60

  1644.             mins = (time / 60) % 60

  1645.             hrs  = (time / 3600) % 60

  1646.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1647. 

  1648.             frame1 =  frame % 1000

  1649.             frame2 = (frame / 1000) % 1000

  1650.             frame3 = (frame / 1000000) % 1000

  1651.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1652. 

  1653.             bar  = timeInfo['bar']

  1654.             beat = timeInfo['beat']

  1655.             tick = timeInfo['tick']

  1656.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1657. 

  1658.         if bpm != self.fLastTransportBPM or forced:

  1659.             self.fLastTransportBPM = bpm

  1660. 

  1661.             if bpm > 0.0:

  1662.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1663.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1664.             else:

  1665.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1666. 

  1667.     # --------------------------------------------------------------------------------------------------------

  1668.     # Transport (menu actions)

  1669. 

  1670.     @pyqtSlot(bool)

  1671.     def slot_transportPlayPause(self, toggled):

  1672.         if self.host.isPlugin or not self.host.is_engine_running():

  1673.             return

  1674. 

  1675.         if toggled:

  1676.             self.host.transport_play()

  1677.         else:

  1678.             self.host.transport_pause()

  1679. 

  1680.         self.refreshTransport()

  1681. 

  1682.     @pyqtSlot()

  1683.     def slot_transportStop(self):

  1684.         if self.host.isPlugin or not self.host.is_engine_running():

  1685.             return

  1686. 

  1687.         self.host.transport_pause()

  1688.         self.host.transport_relocate(0)

  1689. 

  1690.         self.refreshTransport()

  1691. 

  1692.     @pyqtSlot()

  1693.     def slot_transportBackwards(self):

  1694.         if self.host.isPlugin or not self.host.is_engine_running():

  1695.             return

  1696. 

  1697.         newFrame = self.host.get_current_transport_frame() - 100000

  1698. 

  1699.         if newFrame < 0:

  1700.             newFrame = 0

  1701. 

  1702.         self.host.transport_relocate(newFrame)

  1703. 

  1704.     @pyqtSlot()

  1705.     def slot_transportForwards(self):

  1706.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1707.             return

  1708. 

  1709.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1710.         self.host.transport_relocate(newFrame)

  1711. 

  1712.     @pyqtSlot(bool)

  1713.     def slot_transportJackEnabled(self, clicked):

  1714.         if not self.host.is_engine_running():

  1715.             return

  1716.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1717.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1718.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1719. 

  1720.     @pyqtSlot(bool)

  1721.     def slot_transportLinkEnabled(self, clicked):

  1722.         if not self.host.is_engine_running():

  1723.             return

  1724.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1725.         extra = ":link:" if clicked else ""

  1726.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1727. 

  1728.     # --------------------------------------------------------------------------------------------------------

  1729.     # Canvas scrollbars

  1730. 

  1731.     @pyqtSlot(int)

  1732.     def slot_horizontalScrollBarChanged(self, value):

  1733.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1734.         if maximum == 0:

  1735.             xp = 0

  1736.         else:

  1737.             xp = float(value) / maximum

  1738.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1739.         self.updateCanvasInitialPos()

  1740. 

  1741.     @pyqtSlot(int)

  1742.     def slot_verticalScrollBarChanged(self, value):

  1743.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1744.         if maximum == 0:

  1745.             yp = 0

  1746.         else:

  1747.             yp = float(value) / maximum

  1748.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1749.         self.updateCanvasInitialPos()

  1750. 

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

  1752.     # Canvas keyboard

  1753. 

  1754.     @pyqtSlot(int)

  1755.     def slot_noteOn(self, note):

  1756.         for pluginId in self.fSelectedPlugins:

  1757.             self.host.send_midi_note(pluginId, 0, note, 100)

  1758. 

  1759.             pedit = self.getPluginEditDialog(pluginId)

  1760.             pedit.noteOn(0, note, 100)

  1761. 

  1762.     @pyqtSlot(int)

  1763.     def slot_noteOff(self, note):

  1764.         for pluginId in self.fSelectedPlugins:

  1765.             self.host.send_midi_note(pluginId, 0, note, 0)

  1766. 

  1767.             pedit = self.getPluginEditDialog(pluginId)

  1768.             pedit.noteOff(0, note)

  1769. 

  1770.     # --------------------------------------------------------------------------------------------------------

  1771.     # Canvas keyboard (host callbacks)

  1772. 

  1773.     @pyqtSlot(int, int, int, int)

  1774.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1775.         if pluginId in self.fSelectedPlugins:

  1776.             self.ui.keyboard.sendNoteOn(note, False)

  1777. 

  1778.     @pyqtSlot(int, int, int)

  1779.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1780.         if pluginId in self.fSelectedPlugins:

  1781.             self.ui.keyboard.sendNoteOff(note, False)

  1782. 

  1783.     # --------------------------------------------------------------------------------------------------------

  1784. 

  1785.     @pyqtSlot(int)

  1786.     def slot_handleUpdateCallback(self, pluginId):

  1787.         pitem = self.getPluginItem(pluginId)

  1788. 

  1789.         if pitem is None:

  1790.             return

  1791. 

  1792.         wasCompacted = pitem.isCompacted()

  1793.         isCompacted  = wasCompacted

  1794. 

  1795.         for i in range(self.host.get_custom_data_count(pluginId)):

  1796.             cdata = self.host.get_custom_data(pluginId, i)

  1797. 

  1798.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1799.                 isCompacted = bool(cdata['value'] == "true")

  1800.                 break

  1801.         else:

  1802.             return

  1803. 

  1804.         if wasCompacted == isCompacted:

  1805.             return

  1806. 

  1807.         pitem.recreateWidget(True)

  1808. 

  1809.     # --------------------------------------------------------------------------------------------------------

  1810.     # MiniCanvas stuff

  1811. 

  1812.     @pyqtSlot()

  1813.     def slot_miniCanvasCheckAll(self):

  1814.         self.slot_miniCanvasCheckSize()

  1815.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1816.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1817. 

  1818.     @pyqtSlot()

  1819.     def slot_miniCanvasCheckSize(self):

  1820.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1821.             return

  1822. 

  1823.         currentIndex = self.ui.tabWidget.currentIndex()

  1824. 

  1825.         if currentIndex == 1:

  1826.             width  = self.ui.graphicsView.width()

  1827.             height = self.ui.graphicsView.height()

  1828.         else:

  1829.             self.ui.tabWidget.blockSignals(True)

  1830.             self.ui.tabWidget.setCurrentIndex(1)

  1831.             width  = self.ui.graphicsView.width()

  1832.             height = self.ui.graphicsView.height()

  1833.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1834.             self.ui.tabWidget.blockSignals(False)

  1835. 

  1836.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1837. 

  1838.     @pyqtSlot(float, float)

  1839.     def slot_miniCanvasMoved(self, xp, yp):

  1840.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1841.         vsb = self.ui.graphicsView.verticalScrollBar()

  1842.         hsb.setValue(xp * hsb.maximum())

  1843.         vsb.setValue(yp * vsb.maximum())

  1844.         self.updateCanvasInitialPos()

  1845. 

  1846.     # --------------------------------------------------------------------------------------------------------

  1847.     # Timers

  1848. 

  1849.     def startTimers(self):

  1850.         if self.fIdleTimerFast == 0:

  1851.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1852. 

  1853.         if self.fIdleTimerSlow == 0:

  1854.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1855. 

  1856.     def restartTimersIfNeeded(self):

  1857.         if self.fIdleTimerFast != 0:

  1858.             self.killTimer(self.fIdleTimerFast)

  1859.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1860. 

  1861.         if self.fIdleTimerSlow != 0:

  1862.             self.killTimer(self.fIdleTimerSlow)

  1863.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1864. 

  1865.     def killTimers(self):

  1866.         if self.fIdleTimerFast != 0:

  1867.             self.killTimer(self.fIdleTimerFast)

  1868.             self.fIdleTimerFast = 0

  1869. 

  1870.         if self.fIdleTimerSlow != 0:

  1871.             self.killTimer(self.fIdleTimerSlow)

  1872.             self.fIdleTimerSlow = 0

  1873. 

  1874.     # --------------------------------------------------------------------------------------------------------

  1875.     # Misc

  1876. 

  1877.     @pyqtSlot(int)

  1878.     def slot_tabChanged(self, index):

  1879.         if index != 1:

  1880.             return

  1881. 

  1882.         self.ui.graphicsView.setFocus()

  1883. 

  1884.     @pyqtSlot(int)

  1885.     def slot_handleReloadAllCallback(self, pluginId):

  1886.         if pluginId >= self.fPluginCount:

  1887.             return

  1888. 

  1889.         pitem = self.fPluginList[pluginId]

  1890.         if pitem is None:

  1891.             return

  1892. 

  1893.         pitem.recreateWidget()

  1894. 

  1895.     # --------------------------------------------------------------------------------------------------------

  1896. 

  1897.     @pyqtSlot(int, int, str)

  1898.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  1899.         # Error

  1900.         if value1 == 0:

  1901.             pass

  1902. 

  1903.         # Reply

  1904.         elif value1 == 1:

  1905.             self.fFirstEngineInit    = False

  1906.             self.fSessionManagerName = valueStr

  1907.             self.setProperWindowTitle()

  1908. 

  1909.         # Open

  1910.         elif value1 == 2:

  1911.             self.fClientName      = os.path.basename(valueStr)

  1912.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  1913.             self.setProperWindowTitle()

  1914. 

  1915.             self.fCustomStopAction = 2

  1916.             self.slot_engineStop(True)

  1917.             return

  1918. 

  1919.         # Save

  1920.         elif value1 == 3:

  1921.             self.saveProjectNow()

  1922. 

  1923.         # Session is Loaded

  1924.         elif value1 == 4:

  1925.             pass

  1926. 

  1927.         # Show Optional Gui

  1928.         elif value1 == 5:

  1929.             self.show()

  1930. 

  1931.         # Hide Optional Gui

  1932.         elif value1 == 6:

  1933.             self.hide()

  1934. 

  1935.         self.host.nsm_ready(value1)

  1936. 

  1937.     # --------------------------------------------------------------------------------------------------------

  1938. 

  1939.     def fixLogText(self, text):

  1940.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  1941. 

  1942.     @pyqtSlot(int, int, int, float, str)

  1943.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1944.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  1945. 

  1946.     @pyqtSlot(str)

  1947.     def slot_handleInfoCallback(self, info):

  1948.         QMessageBox.information(self, "Information", info)

  1949. 

  1950.     @pyqtSlot(str)

  1951.     def slot_handleErrorCallback(self, error):

  1952.         QMessageBox.critical(self, "Error", error)

  1953. 

  1954.     @pyqtSlot()

  1955.     def slot_handleQuitCallback(self):

  1956.         pass # TODO

  1957. 

  1958.     # --------------------------------------------------------------------------------------------------------

  1959. 

  1960.     @pyqtSlot()

  1961.     def slot_handleSIGUSR1(self):

  1962.         print("Got SIGUSR1 -> Saving project now")

  1963.         self.slot_fileSave()

  1964. 

  1965.     @pyqtSlot()

  1966.     def slot_handleSIGTERM(self):

  1967.         print("Got SIGTERM -> Closing now")

  1968.         self.fCustomStopAction = 1

  1969.         self.slot_engineStop(True)

  1970. 

  1971.     # --------------------------------------------------------------------------------------------------------

  1972.     # Internal stuff

  1973. 

  1974.     def getExtraPtr(self, plugin):

  1975.         ptype = plugin['type']

  1976. 

  1977.         if ptype == PLUGIN_LADSPA:

  1978.             uniqueId = plugin['uniqueId']

  1979. 

  1980.             self.maybeLoadRDFs()

  1981. 

  1982.             for rdfItem in self.fLadspaRdfList:

  1983.                 if rdfItem.UniqueID == uniqueId:

  1984.                     return pointer(rdfItem)

  1985. 

  1986.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  1987.             if plugin['name'].lower().endswith(" (16 outputs)"):

  1988.                 return self._true

  1989. 

  1990.         return None

  1991. 

  1992.     def maybeLoadRDFs(self):

  1993.         if not self.fLadspaRdfNeedsUpdate:

  1994.             return

  1995. 

  1996.         self.fLadspaRdfNeedsUpdate = False

  1997.         self.fLadspaRdfList = []

  1998. 

  1999.         if not haveLRDF:

  2000.             return

  2001. 

  2002.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2003.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2004. 

  2005.         if os.path.exists(frLadspaFile):

  2006.             frLadspa = open(frLadspaFile, 'r')

  2007. 

  2008.             try:

  2009.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2010.             except:

  2011.                 pass

  2012. 

  2013.             frLadspa.close()

  2014. 

  2015.     # --------------------------------------------------------------------------------------------------------

  2016. 

  2017.     def getPluginItem(self, pluginId):

  2018.         if pluginId >= self.fPluginCount:

  2019.             return None

  2020. 

  2021.         pitem = self.fPluginList[pluginId]

  2022.         if pitem is None:

  2023.             return None

  2024.         #if False:

  2025.             #return CarlaRackItem(self, 0, False)

  2026. 

  2027.         return pitem

  2028. 

  2029.     def getPluginEditDialog(self, pluginId):

  2030.         if pluginId >= self.fPluginCount:

  2031.             return None

  2032. 

  2033.         pitem = self.fPluginList[pluginId]

  2034.         if pitem is None:

  2035.             return None

  2036.         if False:

  2037.             return PluginEdit(self, self.host, 0)

  2038. 

  2039.         return pitem.getEditDialog()

  2040. 

  2041.     def getPluginSlotWidget(self, pluginId):

  2042.         if pluginId >= self.fPluginCount:

  2043.             return None

  2044. 

  2045.         pitem = self.fPluginList[pluginId]

  2046.         if pitem is None:

  2047.             return None

  2048.         #if False:

  2049.             #return AbstractPluginSlot()

  2050. 

  2051.         return pitem.getWidget()

  2052. 

  2053.     # --------------------------------------------------------------------------------------------------------

  2054. 

  2055.     def waitForPendingEvents(self):

  2056.         pass

  2057. 

  2058.     # --------------------------------------------------------------------------------------------------------

  2059.     # show/hide event

  2060. 

  2061.     def showEvent(self, event):

  2062.         self.refreshTransport(True)

  2063.         QMainWindow.showEvent(self, event)

  2064. 

  2065.         # set our gui as parent for all plugins UIs

  2066.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2067.             winIdStr = "%x" % int(self.winId())

  2068.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2069. 

  2070.     def hideEvent(self, event):

  2071.         # disable parent

  2072.         if not (self.host.isControl or self.host.isPlugin):

  2073.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2074. 

  2075.         QMainWindow.hideEvent(self, event)

  2076. 

  2077.     # --------------------------------------------------------------------------------------------------------

  2078.     # resize event

  2079. 

  2080.     def fixCanvasPreviewSize(self):

  2081.         self.ui.patchbay.resize(self.ui.rack.size())

  2082.         self.slot_miniCanvasCheckSize()

  2083. 

  2084.     def resizeEvent(self, event):

  2085.         QMainWindow.resizeEvent(self, event)

  2086. 

  2087.         if self.ui.tabWidget.currentIndex() != 1:

  2088.             size = self.ui.rack.size()

  2089.             self.ui.patchbay.resize(size)

  2090. 

  2091.         self.slot_miniCanvasCheckSize()

  2092. 

  2093.     # --------------------------------------------------------------------------------------------------------

  2094.     # timer event

  2095. 

  2096.     def idleFast(self):

  2097.         self.host.engine_idle()

  2098.         self.refreshTransport()

  2099. 

  2100.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2101.             return

  2102. 

  2103.         for pitem in self.fPluginList:

  2104.             if pitem is None:

  2105.                 break

  2106. 

  2107.             pitem.getWidget().idleFast()

  2108. 

  2109.         for pluginId in self.fSelectedPlugins:

  2110.             self.fPeaksCleared = False

  2111.             if self.ui.peak_in.isVisible():

  2112.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2113.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2114.             if self.ui.peak_out.isVisible():

  2115.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2116.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2117.             return

  2118. 

  2119.         if self.fPeaksCleared:

  2120.             return

  2121. 

  2122.         self.fPeaksCleared = True

  2123.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2124.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2125.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2126.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2127. 

  2128.     def idleSlow(self):

  2129.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2130.             return

  2131. 

  2132.         for pitem in self.fPluginList:

  2133.             if pitem is None:

  2134.                 break

  2135. 

  2136.             pitem.getWidget().idleSlow()

  2137. 

  2138.     def timerEvent(self, event):

  2139.         if event.timerId() == self.fIdleTimerFast:

  2140.             self.idleFast()

  2141. 

  2142.         elif event.timerId() == self.fIdleTimerSlow:

  2143.             self.idleSlow()

  2144. 

  2145.         QMainWindow.timerEvent(self, event)

  2146. 

  2147.     # --------------------------------------------------------------------------------------------------------

  2148.     # paint event

  2149. 

  2150.     #def paintEvent(self, event):

  2151.         #QMainWindow.paintEvent(self, event)

  2152. 

  2153.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2154.             #return

  2155. 

  2156.         #painter = QPainter(self)

  2157.         #painter.setBrush(QColor(36, 36, 36))

  2158.         #painter.setPen(QColor(62, 62, 62))

  2159.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2160. 

  2161.     # --------------------------------------------------------------------------------------------------------

  2162.     # close event

  2163. 

  2164.     def closeEvent(self, event):

  2165.         self.killTimers()

  2166.         self.saveSettings()

  2167. 

  2168.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2169.             if not self.slot_engineStop(True):

  2170.                 self.fCustomStopAction = 1

  2171.                 event.ignore()

  2172.                 return

  2173. 

  2174.         QMainWindow.closeEvent(self, event)

  2175. 

  2176. # ------------------------------------------------------------------------------------------------

  2177. # Canvas callback

  2178. 

  2179. def canvasCallback(action, value1, value2, valueStr):

  2180.     host = gCarla.gui.host

  2181. 

  2182.     if action == patchcanvas.ACTION_GROUP_INFO:

  2183.         pass

  2184. 

  2185.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2186.         pass

  2187. 

  2188.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2189.         groupId = value1

  2190.         patchcanvas.splitGroup(groupId)

  2191.         gCarla.gui.updateMiniCanvasLater()

  2192. 

  2193.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2194.         groupId = value1

  2195.         patchcanvas.joinGroup(groupId)

  2196.         gCarla.gui.updateMiniCanvasLater()

  2197. 

  2198.     elif action == patchcanvas.ACTION_PORT_INFO:

  2199.         pass

  2200. 

  2201.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2202.         pass

  2203. 

  2204.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2205.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2206. 

  2207.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2208.             print("Connection failed:", host.get_last_error())

  2209. 

  2210.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2211.         connectionId = value1

  2212. 

  2213.         if not host.patchbay_disconnect(connectionId):

  2214.             print("Disconnect failed:", host.get_last_error())

  2215. 

  2216.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2217.         pluginId = value1

  2218. 

  2219.         if not host.clone_plugin(pluginId):

  2220.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2221.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2222. 

  2223.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2224.         pluginId = value1

  2225.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2226. 

  2227.         if pwidget is not None:

  2228.             pwidget.showEditDialog()

  2229. 

  2230.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2231.         pluginId = value1

  2232.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2233. 

  2234.         if pwidget is not None:

  2235.             pwidget.showRenameDialog()

  2236. 

  2237.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2238.         pluginId = value1

  2239.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2240. 

  2241.         if pwidget is not None:

  2242.             pwidget.showReplaceDialog()

  2243. 

  2244.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2245.         pluginId = value1

  2246. 

  2247.         if not host.remove_plugin(pluginId):

  2248.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2249.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2250. 

  2251.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2252.         pluginId = value1

  2253.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2254. 

  2255.         if pwidget is not None:

  2256.             pwidget.showCustomUI()

  2257. 

  2258.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2259.         gCarla.gui.showPluginActionsMenu()

  2260. 

  2261. # ------------------------------------------------------------------------------------------------------------

  2262. # Engine callback

  2263. 

  2264. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2265.     # kdevelop likes this :)

  2266.     if False: host = CarlaHostNull()

  2267. 

  2268.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2269.         host.processMode   = value1

  2270.         host.transportMode = value2

  2271.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2272.         host.processMode   = value1

  2273.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2274.         host.transportMode = value1

  2275. 

  2276.     valueStr = charPtrToString(valueStr)

  2277. 

  2278.     if action == ENGINE_CALLBACK_DEBUG:

  2279.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2280.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2281.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2282.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2283.         host.PluginRemovedCallback.emit(pluginId)

  2284.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2285.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2286.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2287.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2288.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2289.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2290.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2291.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2292.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2293.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2294.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2295.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2296.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2297.         host.ProgramChangedCallback.emit(pluginId, value1)

  2298.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2299.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2300.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2301.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2302.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2303.         host.UiStateChangedCallback.emit(pluginId, value1)

  2304.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2305.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2306.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2307.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2308.     elif action == ENGINE_CALLBACK_UPDATE:

  2309.         host.UpdateCallback.emit(pluginId)

  2310.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2311.         host.ReloadInfoCallback.emit(pluginId)

  2312.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2313.         host.ReloadParametersCallback.emit(pluginId)

  2314.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2315.         host.ReloadProgramsCallback.emit(pluginId)

  2316.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2317.         host.ReloadAllCallback.emit(pluginId)

  2318.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2319.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2320.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2321.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2322.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2323.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2324.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2325.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2326.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2327.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2328.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2329.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2330.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2331.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2332.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2333.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2334.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2335.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2336.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2337.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2338.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  2339.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2340.         host.EngineStoppedCallback.emit()

  2341.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2342.         host.ProcessModeChangedCallback.emit(value1)

  2343.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2344.         host.TransportModeChangedCallback.emit(value1)

  2345.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2346.         host.BufferSizeChangedCallback.emit(value1)

  2347.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2348.         host.SampleRateChangedCallback.emit(value3)

  2349.     elif action == ENGINE_CALLBACK_NSM:

  2350.         host.NSMCallback.emit(value1, value2, valueStr)

  2351.     elif action == ENGINE_CALLBACK_IDLE:

  2352.         QApplication.instance().processEvents()

  2353.     elif action == ENGINE_CALLBACK_INFO:

  2354.         host.InfoCallback.emit(valueStr)

  2355.     elif action == ENGINE_CALLBACK_ERROR:

  2356.         host.ErrorCallback.emit(valueStr)

  2357.     elif action == ENGINE_CALLBACK_QUIT:

  2358.         host.QuitCallback.emit()

  2359. 

  2360. # ------------------------------------------------------------------------------------------------------------

  2361. # File callback

  2362. 

  2363. def fileCallback(ptr, action, isDir, title, filter):

  2364.     ret = ("", "") if config_UseQt5 else ""

  2365. 

  2366.     if action == FILE_CALLBACK_DEBUG:

  2367.         pass

  2368.     elif action == FILE_CALLBACK_OPEN:

  2369.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2370.     elif action == FILE_CALLBACK_SAVE:

  2371.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  2372. 

  2373.     if config_UseQt5:

  2374.         ret = ret[0]

  2375.     if not ret:

  2376.         return None

  2377. 

  2378.     # FIXME

  2379.     global fileRet

  2380.     fileRet = c_char_p(ret.encode("utf-8"))

  2381.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2382.     return retval.contents.value

  2383. 

  2384. # ------------------------------------------------------------------------------------------------------------

  2385. # Init host

  2386. 

  2387. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2388.     pathBinaries, pathResources = getPaths(libPrefix)

  2389. 

  2390.     # --------------------------------------------------------------------------------------------------------

  2391.     # Check if we should open main lib as local or global

  2392. 

  2393.     settings = QSettings("falkTX", "Carla2")

  2394. 

  2395.     try:

  2396.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2397.     except:

  2398.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2399. 

  2400.     # --------------------------------------------------------------------------------------------------------

  2401.     # Fail if binary dir is not found

  2402. 

  2403.     if not os.path.exists(pathBinaries):

  2404.         if failError:

  2405.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2406.             sys.exit(1)

  2407.         return

  2408. 

  2409.     # --------------------------------------------------------------------------------------------------------

  2410.     # Set Carla library name

  2411. 

  2412.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2413.     libname   = os.path.join(pathBinaries, libname)

  2414.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2415. 

  2416.     # --------------------------------------------------------------------------------------------------------

  2417.     # Print info

  2418. 

  2419.     print("Carla %s started, status:" % VERSION)

  2420.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2421.     print("  Qt version:     %s" % qVersion())

  2422.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2423.     print("  Binary dir:     %s" % pathBinaries)

  2424.     print("  Resources dir:  %s" % pathResources)

  2425. 

  2426.     # --------------------------------------------------------------------------------------------------------

  2427.     # Init host

  2428. 

  2429. 

  2430. 

  2431.     if failError:

  2432.         # no try

  2433.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2434.     else:

  2435.         try:

  2436.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2437.         except:

  2438.             host = CarlaHostQtNull()

  2439. 

  2440.     host.isControl = isControl

  2441.     host.isPlugin  = isPlugin

  2442. 

  2443.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2444.     host.set_file_callback(fileCallback)

  2445. 

  2446.     # If it's a plugin the paths are already set

  2447.     if not isPlugin:

  2448.         host.pathBinaries  = pathBinaries

  2449.         host.pathResources = pathResources

  2450.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2451.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2452. 

  2453.         if not isControl:

  2454.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2455. 

  2456.     # --------------------------------------------------------------------------------------------------------

  2457.     # Init utils

  2458. 

  2459.     gCarla.utils = CarlaUtils(utilsname)

  2460.     gCarla.utils.set_process_name(os.path.basename(initName))

  2461. 

  2462.     try:

  2463.         sys.stdout.flush()

  2464.     except:

  2465.         pass

  2466. 

  2467.     sys.stdout = CarlaPrint(False)

  2468.     sys.stderr = CarlaPrint(True)

  2469. 

  2470.     # --------------------------------------------------------------------------------------------------------

  2471.     # Done

  2472. 

  2473.     return host

  2474. 

  2475. # ------------------------------------------------------------------------------------------------------------

  2476. # Load host settings

  2477. 

  2478. def loadHostSettings(host):

  2479.     # kdevelop likes this :)

  2480.     if False: host = CarlaHostNull()

  2481. 

  2482.     settings = QSettings("falkTX", "Carla2")

  2483. 

  2484.     try:

  2485.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2486.     except:

  2487.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2488. 

  2489.     try:

  2490.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2491.     except:

  2492.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2493. 

  2494.     try:

  2495.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2496.     except:

  2497.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2498. 

  2499.     try:

  2500.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2501.     except:

  2502.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2503. 

  2504.     try:

  2505.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2506.     except:

  2507.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2508. 

  2509.     try:

  2510.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2511.     except:

  2512.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2513. 

  2514.     try:

  2515.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2516.     except:

  2517.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2518. 

  2519.     try:

  2520.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2521.     except:

  2522.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2523. 

  2524.     try:

  2525.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2526.     except:

  2527.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2528. 

  2529.     try:

  2530.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2531.     except:

  2532.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2533. 

  2534.     try:

  2535.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2536.     except:

  2537.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2538. 

  2539.     try:

  2540.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2541.     except:

  2542.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2543. 

  2544.     if host.isPlugin:

  2545.         return

  2546. 

  2547.     # enums

  2548.     if host.audioDriverForced is None:

  2549.         try:

  2550.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2551.         except:

  2552.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2553. 

  2554.     if not host.processModeForced:

  2555.         try:

  2556.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2557.         except:

  2558.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2559. 

  2560.     host.nextProcessMode = host.processMode

  2561. 

  2562.     # --------------------------------------------------------------------------------------------------------

  2563.     # fix things if needed

  2564. 

  2565.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2566.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2567.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2568. 

  2569.     # --------------------------------------------------------------------------------------------------------

  2570.     # run headless host now if nogui option enabled

  2571. 

  2572.     if gCarla.nogui:

  2573.         runHostWithoutUI(host)

  2574. 

  2575. # ------------------------------------------------------------------------------------------------------------

  2576. # Set host settings

  2577. 

  2578. def setHostSettings(host):

  2579.     # kdevelop likes this :)

  2580.     if False: host = CarlaHostNull()

  2581. 

  2582.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2583.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2584.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2585.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2586.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2587.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2588.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2589.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2590. 

  2591.     if host.isPlugin:

  2592.         return

  2593. 

  2594.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2595.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2596. 

  2597. # ------------------------------------------------------------------------------------------------------------

  2598. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2599. 

  2600. def setEngineSettings(host):

  2601.     # kdevelop likes this :)

  2602.     if False: host = CarlaHostNull()

  2603. 

  2604.     # --------------------------------------------------------------------------------------------------------

  2605.     # do nothing if control

  2606. 

  2607.     if host.isControl:

  2608.         return "Control"

  2609. 

  2610.     # --------------------------------------------------------------------------------------------------------

  2611. 

  2612.     settings = QSettings("falkTX", "Carla2")

  2613. 

  2614.     # --------------------------------------------------------------------------------------------------------

  2615.     # main settings

  2616. 

  2617.     setHostSettings(host)

  2618. 

  2619.     # --------------------------------------------------------------------------------------------------------

  2620.     # plugin paths

  2621. 

  2622.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2623.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2624.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2625.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2626.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  2627.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2628.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2629.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2630. 

  2631.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2632.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2633.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2634.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2635.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  2636.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2637.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2638.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2639. 

  2640.     # --------------------------------------------------------------------------------------------------------

  2641.     # don't continue if plugin

  2642. 

  2643.     if host.isPlugin:

  2644.         return "Plugin"

  2645. 

  2646.     # --------------------------------------------------------------------------------------------------------

  2647.     # driver and device settings

  2648. 

  2649.     # driver name

  2650.     if host.audioDriverForced is not None:

  2651.         audioDriver = host.audioDriverForced

  2652.     else:

  2653.         try:

  2654.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2655.         except:

  2656.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2657. 

  2658.     # driver options

  2659.     try:

  2660.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2661.     except:

  2662.         audioDevice = ""

  2663. 

  2664.     try:

  2665.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2666.     except:

  2667.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2668. 

  2669.     try:

  2670.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2671.     except:

  2672.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2673. 

  2674.     try:

  2675.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2676.     except:

  2677.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2678. 

  2679.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2680.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2681.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2682.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2683. 

  2684.     # --------------------------------------------------------------------------------------------------------

  2685.     # fix things if needed

  2686. 

  2687.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2688.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2689.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2690. 

  2691.     # --------------------------------------------------------------------------------------------------------

  2692.     # return selected driver name

  2693. 

  2694.     return audioDriver

  2695. 

  2696. # ------------------------------------------------------------------------------------------------------------

  2697. # Run Carla without showing UI

  2698. 

  2699. def runHostWithoutUI(host):

  2700.     # kdevelop likes this :)

  2701.     if False: host = CarlaHostNull()

  2702. 

  2703.     # --------------------------------------------------------------------------------------------------------

  2704.     # Some initial checks

  2705. 

  2706.     if not gCarla.nogui:

  2707.         return

  2708. 

  2709.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2710. 

  2711.     if not projectFile:

  2712.         print("Carla no-gui mode can only be used together with a project file.")

  2713.         sys.exit(1)

  2714. 

  2715.     # --------------------------------------------------------------------------------------------------------

  2716.     # Additional imports

  2717. 

  2718.     from time import sleep

  2719. 

  2720.     # --------------------------------------------------------------------------------------------------------

  2721.     # Init engine

  2722. 

  2723.     audioDriver = setEngineSettings(host)

  2724.     if not host.engine_init(audioDriver, "Carla-nogui"):

  2725.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2726.         sys.exit(1)

  2727. 

  2728.     if not host.load_project(projectFile):

  2729.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2730.         host.engine_close()

  2731.         sys.exit(1)

  2732. 

  2733.     # --------------------------------------------------------------------------------------------------------

  2734.     # Idle

  2735. 

  2736.     while host.is_engine_running() and not gCarla.term:

  2737.         host.engine_idle()

  2738.         sleep(0.5)

  2739. 

  2740.     # --------------------------------------------------------------------------------------------------------

  2741.     # Stop

  2742. 

  2743.     host.engine_close()

  2744.     sys.exit(0)

  2745. 

  2746. # ------------------------------------------------------------------------------------------------------------