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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. # Safe exception hook, needed for PyQt5

  65. 

  66. def sys_excepthook(type, value, tback):

  67.     return sys.__excepthook__(type, value, tback)

  68. 

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

  70. # Session Management support

  71. 

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

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

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

  75. 

  76. # ------------------------------------------------------------------------------------------------------------

  77. # Carla Print class

  78. 

  79. class CarlaPrint:

  80.     def __init__(self, err):

  81.         self.err = err

  82. 

  83.     def flush(self):

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

  85. 

  86.     def write(self, string):

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

  88. 

  89. # ------------------------------------------------------------------------------------------------------------

  90. # Host Window

  91. 

  92. class HostWindow(QMainWindow):

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

  94.     # signals

  95.     SIGTERM = pyqtSignal()

  96.     SIGUSR1 = pyqtSignal()

  97. 

  98.     # --------------------------------------------------------------------------------------------------------

  99. 

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

  101.         QMainWindow.__init__(self, parent)

  102.         self.host = host

  103.         self.ui = ui_carla_host.Ui_CarlaHostW()

  104.         self.ui.setupUi(self)

  105.         gCarla.gui = self

  106. 

  107.         if False:

  108.             # kdevelop likes this :)

  109.             host = CarlaHostNull()

  110.             self.host = host

  111. 

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

  113. 

  114.         self.fParentOrSelf = parent or self

  115. 

  116.         # ----------------------------------------------------------------------------------------------------

  117.         # Internal stuff

  118. 

  119.         self.fIdleTimerFast = 0

  120.         self.fIdleTimerSlow = 0

  121. 

  122.         self.fLadspaRdfNeedsUpdate = True

  123.         self.fLadspaRdfList = []

  124. 

  125.         self.fPluginCount = 0

  126.         self.fPluginList  = []

  127. 

  128.         self.fProjectFilename  = ""

  129.         self.fIsProjectLoading = False

  130.         self.fCurrentlyRemovingAllPlugins = False

  131. 

  132.         self.fLastTransportBPM   = 0.0

  133.         self.fLastTransportFrame = 0

  134.         self.fLastTransportState = False

  135.         self.fSampleRate         = 0.0

  136. 

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

  138.         # 1 for close carla, 2 for load project

  139.         self.fCustomStopAction = 0

  140. 

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

  142.         self.fFirstEngineInit = True

  143. 

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

  145.         self.fSavedSettings = {}

  146. 

  147.         if host.isControl:

  148.             self.fClientName         = "Carla-Control"

  149.             self.fSessionManagerName = "Control"

  150.         elif host.isPlugin:

  151.             self.fClientName         = "Carla-Plugin"

  152.             self.fSessionManagerName = "Plugin"

  153.         elif LADISH_APP_NAME:

  154.             self.fClientName         = LADISH_APP_NAME

  155.             self.fSessionManagerName = "LADISH"

  156.         elif NSM_URL and host.nsmOK:

  157.             self.fClientName         = "Carla.tmp"

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

  159.         else:

  160.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  161.             self.fSessionManagerName = ""

  162. 

  163.         # ----------------------------------------------------------------------------------------------------

  164.         # Internal stuff (patchbay)

  165. 

  166.         self.fExportImage = QImage()

  167. 

  168.         self.fPeaksCleared = True

  169. 

  170.         self.fExternalPatchbay = False

  171.         self.fSelectedPlugins  = []

  172. 

  173.         self.fCanvasWidth  = 0

  174.         self.fCanvasHeight = 0

  175.         self.fMiniCanvasUpdateTimeout = 0

  176. 

  177.         self.fWithCanvas = withCanvas

  178. 

  179.         # ----------------------------------------------------------------------------------------------------

  180.         # Set up GUI (engine stopped)

  181. 

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

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

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

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

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

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

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

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

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

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

  192. 

  193.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

  204.             else:

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

  206. 

  207.         else:

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

  209. 

  210.             if WINDOWS:

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

  212. 

  213.         if not self.host.isControl:

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

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

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

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

  218. 

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

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

  221. 

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

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

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

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

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

  227. 

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

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

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

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

  232. 

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

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

  235. 

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

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

  238. 

  239.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  257.             self.ui.miniCanvasPreview.hide()

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

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

  260. 

  261.             if host.isControl:

  262.                 self.ui.dockWidget.hide()

  263. 

  264.         # ----------------------------------------------------------------------------------------------------

  265.         # Set up GUI (disk)

  266. 

  267.         self.fDirModel = QFileSystemModel(self)

  268.         self.fDirModel.setRootPath(HOME)

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

  270. 

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

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

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

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

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

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

  277. 

  278.         # ----------------------------------------------------------------------------------------------------

  279.         # Set up GUI (transport)

  280. 

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

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

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

  284. 

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

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

  287. 

  288.         if minLabelWidth < labelTimeWidth:

  289.             minLabelWidth = labelTimeWidth

  290.         if minLabelWidth < labelBBTWidth:

  291.             minLabelWidth = labelBBTWidth

  292. 

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

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

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

  296. 

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

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

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

  300. 

  301.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

  308. 

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

  310. 

  311.         # ----------------------------------------------------------------------------------------------------

  312.         # Set up GUI (rack)

  313. 

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

  315. 

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

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

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

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

  320. 

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

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

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

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

  325. 

  326.         self.ui.rack.setStyleSheet("""

  327.           QLabel#pad_left {

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

  329.             background-repeat: repeat-y;

  330.           }

  331.           QLabel#pad_right {

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

  333.             background-repeat: repeat-y;

  334.           }

  335.           CarlaRackList#CarlaRackList {

  336.             background-color: black;

  337.           }

  338.         """)

  339. 

  340.         # ----------------------------------------------------------------------------------------------------

  341.         # Set up GUI (patchbay)

  342. 

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

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

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

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

  347. 

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

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

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

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

  352. 

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

  354.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  356. 

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

  358. 

  359.         self.ui.miniCanvasPreview.setRealParent(self)

  360. 

  361.         # ----------------------------------------------------------------------------------------------------

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

  363. 

  364.         if MACOS:

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

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

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

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

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

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

  371. 

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

  373.         # Load Settings

  374. 

  375.         self.loadSettings(True)

  376. 

  377.         # ----------------------------------------------------------------------------------------------------

  378.         # Set-up Canvas

  379. 

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

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

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

  383. 

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

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

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

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

  388. 

  389.         self.setupCanvas()

  390. 

  391.         # ----------------------------------------------------------------------------------------------------

  392.         # Connect actions to functions

  393. 

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

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

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

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

  398. 

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

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

  401. 

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

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

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

  405. 

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

  407. 

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

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

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

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

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

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

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

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

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

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

  418. 

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

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

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

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

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

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

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

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

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

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

  429. 

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

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

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

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

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

  435. 

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

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

  438. 

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

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

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

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

  443. 

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

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

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

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

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

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

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

  451. 

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

  453. 

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

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

  456. 

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

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

  459. 

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

  461. 

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

  463. 

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

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

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

  467. 

  468.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  469.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  470. 

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

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

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

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

  475. 

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

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

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

  479. 

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

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

  482. 

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

  484. 

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

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

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

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

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

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

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

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

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

  494. 

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

  496. 

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

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

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

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

  501. 

  502.         # ----------------------------------------------------------------------------------------------------

  503.         # Final setup

  504. 

  505.         self.ui.text_logs.clear()

  506.         self.setProperWindowTitle()

  507. 

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

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

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

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

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

  513. 

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

  515.         if self.host.isPlugin:

  516.             self.startTimers()

  517. 

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

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

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

  521. 

  522.         # Load initial project file if set

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

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

  525. 

  526.             if projectFile:

  527.                 self.loadProjectLater(projectFile)

  528. 

  529.         # For NSM we wait for the open message

  530.         if NSM_URL and host.nsmOK:

  531.             host.nsm_ready(-1)

  532.             return

  533. 

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

  535. 

  536.     # --------------------------------------------------------------------------------------------------------

  537.     # Setup

  538. 

  539.     def compactPlugin(self, pluginId):

  540.         if pluginId > self.fPluginCount:

  541.             return

  542. 

  543.         pitem = self.fPluginList[pluginId]

  544. 

  545.         if pitem is None:

  546.             return

  547. 

  548.         pitem.recreateWidget(True)

  549. 

  550.     def setLoadRDFsNeeded(self):

  551.         self.fLadspaRdfNeedsUpdate = True

  552. 

  553.     def setProperWindowTitle(self):

  554.         title = self.fClientName

  555. 

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

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

  558.         if self.fSessionManagerName:

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

  560. 

  561.         self.setWindowTitle(title)

  562. 

  563.     # --------------------------------------------------------------------------------------------------------

  564.     # Files

  565. 

  566.     def makeExtraFilename(self):

  567.         return self.fProjectFilename.rsplit(".",1)[0]+".json"

  568. 

  569.     def loadProjectNow(self):

  570.         if not self.fProjectFilename:

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

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

  573.             return

  574. 

  575.         self.projectLoadingStarted()

  576.         self.fIsProjectLoading = True

  577.         self.host.load_project(self.fProjectFilename)

  578. 

  579.         # Project finished loading is sent by engine

  580. 

  581.     def loadProjectLater(self, filename):

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

  583.         self.setProperWindowTitle()

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

  585. 

  586.     def saveProjectNow(self):

  587.         if not self.fProjectFilename:

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

  589. 

  590.         self.host.save_project(self.fProjectFilename)

  591. 

  592.         with open(self.makeExtraFilename(), 'w') as fh:

  593.             json.dump({

  594.                 'canvas': patchcanvas.saveGroupPositions(),

  595.             }, fh)

  596. 

  597.     def projectLoadingStarted(self):

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

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

  600. 

  601.     def projectLoadingFinished(self):

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

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

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

  605. 

  606.         extrafile = self.makeExtraFilename()

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

  608.             return

  609. 

  610.         try:

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

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

  613.         except:

  614.             return

  615. 

  616.         patchcanvas.restoreGroupPositions(canvasdata)

  617. 

  618.     # --------------------------------------------------------------------------------------------------------

  619.     # Files (menu actions)

  620. 

  621.     @pyqtSlot()

  622.     def slot_fileNew(self):

  623.         self.slot_pluginRemoveAll()

  624.         self.fProjectFilename = ""

  625.         self.setProperWindowTitle()

  626. 

  627.     @pyqtSlot()

  628.     def slot_fileOpen(self):

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

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

  631. 

  632.         if config_UseQt5:

  633.             filename = filename[0]

  634.         if not filename:

  635.             return

  636. 

  637.         newFile = True

  638. 

  639.         if self.fPluginCount > 0:

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

  641.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  643. 

  644.         if newFile:

  645.             self.slot_pluginRemoveAll()

  646.             self.fProjectFilename = filename

  647.             self.setProperWindowTitle()

  648.             self.loadProjectNow()

  649.         else:

  650.             filenameOld = self.fProjectFilename

  651.             self.fProjectFilename = filename

  652.             self.loadProjectNow()

  653.             self.fProjectFilename = filenameOld

  654. 

  655.     @pyqtSlot()

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

  657.         if self.fProjectFilename and not saveAs:

  658.             return self.saveProjectNow()

  659. 

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

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

  662. 

  663.         if config_UseQt5:

  664.             filename = filename[0]

  665.         if not filename:

  666.             return

  667. 

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

  669.             filename += ".carxp"

  670. 

  671.         if self.fProjectFilename != filename:

  672.             self.fProjectFilename = filename

  673.             self.setProperWindowTitle()

  674. 

  675.         self.saveProjectNow()

  676. 

  677.     @pyqtSlot()

  678.     def slot_fileSaveAs(self):

  679.         self.slot_fileSave(True)

  680. 

  681.     @pyqtSlot()

  682.     def slot_loadProjectNow(self):

  683.         self.loadProjectNow()

  684. 

  685.     # --------------------------------------------------------------------------------------------------------

  686.     # Engine (menu actions)

  687. 

  688.     @pyqtSlot()

  689.     def slot_engineStart(self):

  690.         audioDriver = setEngineSettings(self.host)

  691.         firstInit   = self.fFirstEngineInit

  692. 

  693.         self.fFirstEngineInit = False

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

  695. 

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

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

  698.             return

  699. 

  700.         elif firstInit:

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

  702.             return

  703. 

  704.         audioError = self.host.get_last_error()

  705. 

  706.         if audioError:

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

  708.         else:

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

  710. 

  711.     @pyqtSlot()

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

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

  714. 

  715.         if self.fPluginCount == 0:

  716.             self.engineStopFinal()

  717.             return True

  718. 

  719.         if not forced:

  720.             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"

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

  722.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  723.             if ask != QMessageBox.Yes:

  724.                 return False

  725. 

  726.         return self.slot_engineStopTryAgain()

  727. 

  728.     @pyqtSlot()

  729.     def slot_engineStopTryAgain(self):

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

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

  732.             return False

  733. 

  734.         self.engineStopFinal()

  735.         return True

  736. 

  737.     def engineStopFinal(self):

  738.         self.killTimers()

  739.         self.removeAllPlugins()

  740. 

  741.         if self.host.is_engine_running():

  742.             self.host.remove_all_plugins()

  743. 

  744.             if self.host.engine_close():

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

  746.             else:

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

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

  749. 

  750.         if self.fCustomStopAction == 1:

  751.             self.close()

  752.         elif self.fCustomStopAction == 2:

  753.             self.slot_engineStart()

  754.             self.loadProjectNow()

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

  756. 

  757.         self.fCustomStopAction = 0

  758. 

  759.     # --------------------------------------------------------------------------------------------------------

  760.     # Engine (host callbacks)

  761. 

  762.     @pyqtSlot(int, int, str)

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

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

  765. 

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

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

  768. 

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

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

  771. 

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

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

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

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

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

  777.         else:

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

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

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

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

  782. 

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

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

  785. 

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

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

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

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

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

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

  792. 

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

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

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

  796. 

  797.         self.refreshTransport(True)

  798. 

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

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

  801. 

  802.         self.startTimers()

  803. 

  804.     @pyqtSlot()

  805.     def slot_handleEngineStoppedCallback(self):

  806.         patchcanvas.clear()

  807.         self.killTimers()

  808. 

  809.         # just in case

  810.         self.removeAllPlugins()

  811. 

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

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

  814. 

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

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

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

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

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

  820. 

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

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

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

  824. 

  825.     @pyqtSlot(float)

  826.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  827.         self.fSampleRate = newSampleRate

  828.         self.refreshTransport(True)

  829. 

  830.     @pyqtSlot()

  831.     def slot_handleProjectLoadFinishedCallback(self):

  832.         self.fIsProjectLoading = False

  833.         self.projectLoadingFinished()

  834. 

  835.     # --------------------------------------------------------------------------------------------------------

  836.     # Plugins

  837. 

  838.     def removeAllPlugins(self):

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

  840.         patchcanvas.handleAllPluginsRemoved()

  841. 

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

  843.             pass

  844. 

  845.         self.clearSideStuff()

  846. 

  847.         for pitem in self.fPluginList:

  848.             if pitem is None:

  849.                 continue

  850. 

  851.             pitem.close()

  852.             del pitem

  853. 

  854.         self.fPluginCount = 0

  855.         self.fPluginList  = []

  856. 

  857.     # --------------------------------------------------------------------------------------------------------

  858.     # Plugins (menu actions)

  859. 

  860.     def showAddPluginDialog(self):

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

  862. 

  863.         if not dialog.exec_():

  864.             return

  865. 

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

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

  868.             return

  869. 

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

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

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

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

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

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

  876. 

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

  878. 

  879.     def showAddJackAppDialog(self):

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

  881. 

  882.         if not dialog.exec_():

  883.             return

  884. 

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

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

  887.             return

  888. 

  889.         return dialog.getCommandAndFlags()

  890. 

  891.     @pyqtSlot()

  892.     def showPluginActionsMenu(self):

  893.         menu = QMenu(self)

  894. 

  895.         if config_UseQt5:

  896.             menu.addSection("Plugins")

  897.         else:

  898.             # fake section

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

  900.             font = act.font()

  901.             font.setBold(True)

  902.             act.setFont(font)

  903.             act.setEnabled(False)

  904.             menu.addSeparator()

  905. 

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

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

  908. 

  909.         if config_UseQt5:

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

  911.         else:

  912.             # fake space

  913.             act  = menu.addAction(" ")

  914.             font = act.font()

  915.             font.setBold(True)

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

  917.             act.setEnabled(False)

  918. 

  919.             # fake section

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

  921.             font = act.font()

  922.             font.setBold(True)

  923.             act.setFont(font)

  924.             act.setEnabled(False)

  925.             menu.addSeparator()

  926. 

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

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

  929.         menu.addSeparator()

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

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

  932.         menu.addSeparator()

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

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

  935.         menu.addSeparator()

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

  937.         menu.addSeparator()

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

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

  940. 

  941.         menu.exec_(QCursor.pos())

  942. 

  943.     @pyqtSlot()

  944.     def slot_pluginAdd(self):

  945.         data = self.showAddPluginDialog()

  946. 

  947.         if data is None:

  948.             return

  949. 

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

  951. 

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

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

  954. 

  955.     @pyqtSlot()

  956.     def slot_pluginRemoveAll(self):

  957.         if self.fPluginCount == 0:

  958.             return

  959. 

  960.         # FIXME - this is not working

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

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

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

  964.             self.projectLoadingStarted()

  965. 

  966.             app = QApplication.instance()

  967.             app.processEvents()

  968. 

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

  970.                 self.host.remove_plugin(i)

  971.                 app.processEvents()

  972. 

  973.             self.projectLoadingFinished()

  974. 

  975.         self.fCurrentlyRemovingAllPlugins = True

  976.         ok = self.host.remove_all_plugins()

  977.         self.fCurrentlyRemovingAllPlugins = False

  978. 

  979.         if ok:

  980.             self.removeAllPlugins()

  981.         else:

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

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

  984. 

  985.         self.fCurrentlyRemovingAllPlugins = False

  986. 

  987.     @pyqtSlot()

  988.     def slot_jackAppAdd(self):

  989.         data = self.showAddJackAppDialog()

  990. 

  991.         if data is None:

  992.             return

  993. 

  994.         filename, name, label = data

  995. 

  996.         if not filename:

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

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

  999.             return

  1000. 

  1001.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1002.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1003.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1004. 

  1005.     # --------------------------------------------------------------------------------------------------------

  1006.     # Plugins (macros)

  1007. 

  1008.     @pyqtSlot()

  1009.     def slot_pluginsEnable(self):

  1010.         if not self.host.is_engine_running():

  1011.             return

  1012. 

  1013.         for pitem in self.fPluginList:

  1014.             if pitem is None:

  1015.                 break

  1016. 

  1017.             pitem.getWidget().setActive(True, True, True)

  1018. 

  1019.     @pyqtSlot()

  1020.     def slot_pluginsDisable(self):

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

  1022.             return

  1023. 

  1024.         for pitem in self.fPluginList:

  1025.             if pitem is None:

  1026.                 break

  1027. 

  1028.             pitem.getWidget().setActive(False, True, True)

  1029. 

  1030.     @pyqtSlot()

  1031.     def slot_pluginsVolume100(self):

  1032.         if not self.host.is_engine_running():

  1033.             return

  1034. 

  1035.         for pitem in self.fPluginList:

  1036.             if pitem is None:

  1037.                 break

  1038. 

  1039.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1040. 

  1041.     @pyqtSlot()

  1042.     def slot_pluginsMute(self):

  1043.         if not self.host.is_engine_running():

  1044.             return

  1045. 

  1046.         for pitem in self.fPluginList:

  1047.             if pitem is None:

  1048.                 break

  1049. 

  1050.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1051. 

  1052.     @pyqtSlot()

  1053.     def slot_pluginsWet100(self):

  1054.         if not self.host.is_engine_running():

  1055.             return

  1056. 

  1057.         for pitem in self.fPluginList:

  1058.             if pitem is None:

  1059.                 break

  1060. 

  1061.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1062. 

  1063.     @pyqtSlot()

  1064.     def slot_pluginsBypass(self):

  1065.         if not self.host.is_engine_running():

  1066.             return

  1067. 

  1068.         for pitem in self.fPluginList:

  1069.             if pitem is None:

  1070.                 break

  1071. 

  1072.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1073. 

  1074.     @pyqtSlot()

  1075.     def slot_pluginsCenter(self):

  1076.         if not self.host.is_engine_running():

  1077.             return

  1078. 

  1079.         for pitem in self.fPluginList:

  1080.             if pitem is None:

  1081.                 break

  1082. 

  1083.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1084.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1085.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1086. 

  1087.     @pyqtSlot()

  1088.     def slot_pluginsCompact(self):

  1089.         for pitem in self.fPluginList:

  1090.             if pitem is None:

  1091.                 break

  1092.             pitem.compact()

  1093. 

  1094.     @pyqtSlot()

  1095.     def slot_pluginsExpand(self):

  1096.         for pitem in self.fPluginList:

  1097.             if pitem is None:

  1098.                 break

  1099.             pitem.expand()

  1100. 

  1101.     # --------------------------------------------------------------------------------------------------------

  1102.     # Plugins (host callbacks)

  1103. 

  1104.     @pyqtSlot(int, str)

  1105.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1106.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1107. 

  1108.         self.fPluginList.append(pitem)

  1109.         self.fPluginCount += 1

  1110. 

  1111.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1112. 

  1113.     @pyqtSlot(int)

  1114.     def slot_handlePluginRemovedCallback(self, pluginId):

  1115.         patchcanvas.handlePluginRemoved(pluginId)

  1116. 

  1117.         if pluginId in self.fSelectedPlugins:

  1118.             self.clearSideStuff()

  1119. 

  1120.         pitem = self.getPluginItem(pluginId)

  1121. 

  1122.         self.fPluginCount -= 1

  1123.         self.fPluginList.pop(pluginId)

  1124.         self.ui.listWidget.takeItem(pluginId)

  1125. 

  1126.         if pitem is not None:

  1127.             pitem.close()

  1128.             del pitem

  1129. 

  1130.         # push all plugins 1 slot back

  1131.         for i in range(pluginId, self.fPluginCount):

  1132.             pitem = self.fPluginList[i]

  1133.             pitem.setPluginId(i)

  1134. 

  1135.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1136. 

  1137.     # --------------------------------------------------------------------------------------------------------

  1138.     # Canvas

  1139. 

  1140.     def clearSideStuff(self):

  1141.         self.scene.clearSelection()

  1142. 

  1143.         self.fSelectedPlugins = []

  1144. 

  1145.         self.ui.keyboard.allNotesOff(False)

  1146.         self.ui.scrollArea.setEnabled(False)

  1147. 

  1148.         self.fPeaksCleared = True

  1149.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1150.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1151.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1152.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1153. 

  1154.     def setupCanvas(self):

  1155.         pOptions = patchcanvas.options_t()

  1156.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1157.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1158.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1159.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1160.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1161. 

  1162.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1163.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1164.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1165.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1166.         else:

  1167.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1168. 

  1169.         pFeatures = patchcanvas.features_t()

  1170.         pFeatures.group_info   = False

  1171.         pFeatures.group_rename = False

  1172.         pFeatures.port_info    = False

  1173.         pFeatures.port_rename  = False

  1174.         pFeatures.handle_group_pos = True

  1175. 

  1176.         patchcanvas.setOptions(pOptions)

  1177.         patchcanvas.setFeatures(pFeatures)

  1178.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1179. 

  1180.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1181. 

  1182.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1183.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1184.             self.fCanvasHeight = int(tryCanvasSize[1])

  1185.         else:

  1186.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1187.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1188. 

  1189.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1190.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1191.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1192. 

  1193.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1194.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1195. 

  1196.     def updateCanvasInitialPos(self):

  1197.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1198.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1199.         patchcanvas.setInitialPos(x, y)

  1200. 

  1201.     def updateMiniCanvasLater(self):

  1202.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1203. 

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

  1205.     # Canvas (menu actions)

  1206. 

  1207.     @pyqtSlot()

  1208.     def slot_canvasShowInternal(self):

  1209.         self.fExternalPatchbay = False

  1210.         self.ui.act_canvas_show_internal.blockSignals(True)

  1211.         self.ui.act_canvas_show_external.blockSignals(True)

  1212.         self.ui.act_canvas_show_internal.setChecked(True)

  1213.         self.ui.act_canvas_show_external.setChecked(False)

  1214.         self.ui.act_canvas_show_internal.blockSignals(False)

  1215.         self.ui.act_canvas_show_external.blockSignals(False)

  1216.         self.slot_canvasRefresh()

  1217. 

  1218.     @pyqtSlot()

  1219.     def slot_canvasShowExternal(self):

  1220.         self.fExternalPatchbay = True

  1221.         self.ui.act_canvas_show_internal.blockSignals(True)

  1222.         self.ui.act_canvas_show_external.blockSignals(True)

  1223.         self.ui.act_canvas_show_internal.setChecked(False)

  1224.         self.ui.act_canvas_show_external.setChecked(True)

  1225.         self.ui.act_canvas_show_internal.blockSignals(False)

  1226.         self.ui.act_canvas_show_external.blockSignals(False)

  1227.         self.slot_canvasRefresh()

  1228. 

  1229.     @pyqtSlot()

  1230.     def slot_canvasArrange(self):

  1231.         patchcanvas.arrange()

  1232. 

  1233.     @pyqtSlot()

  1234.     def slot_canvasRefresh(self):

  1235.         patchcanvas.clear()

  1236. 

  1237.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1238.             return

  1239. 

  1240.         if self.host.is_engine_running():

  1241.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1242. 

  1243.         self.updateMiniCanvasLater()

  1244. 

  1245.     @pyqtSlot()

  1246.     def slot_canvasZoomFit(self):

  1247.         self.scene.zoom_fit()

  1248. 

  1249.     @pyqtSlot()

  1250.     def slot_canvasZoomIn(self):

  1251.         self.scene.zoom_in()

  1252. 

  1253.     @pyqtSlot()

  1254.     def slot_canvasZoomOut(self):

  1255.         self.scene.zoom_out()

  1256. 

  1257.     @pyqtSlot()

  1258.     def slot_canvasZoomReset(self):

  1259.         self.scene.zoom_reset()

  1260. 

  1261.     @pyqtSlot()

  1262.     def slot_canvasSaveImage(self):

  1263.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1264. 

  1265.         if config_UseQt5:

  1266.             newPath = newPath[0]

  1267.         if not newPath:

  1268.             return

  1269. 

  1270.         self.scene.clearSelection()

  1271. 

  1272.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1273.             imgFormat = "JPG"

  1274.         elif newPath.lower().endswith((".png",)):

  1275.             imgFormat = "PNG"

  1276.         else:

  1277.             # File-dialog may not auto-add the extension

  1278.             imgFormat = "PNG"

  1279.             newPath  += ".png"

  1280. 

  1281.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1282.         painter = QPainter(self.fExportImage)

  1283.         painter.save()

  1284.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1285.         painter.setRenderHint(QPainter.TextAntialiasing)

  1286.         self.scene.render(painter)

  1287.         self.fExportImage.save(newPath, imgFormat, 100)

  1288.         painter.restore()

  1289. 

  1290.     # --------------------------------------------------------------------------------------------------------

  1291.     # Canvas (canvas callbacks)

  1292. 

  1293.     @pyqtSlot(int, int, QPointF)

  1294.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1295.         self.updateMiniCanvasLater()

  1296. 

  1297.     @pyqtSlot(float)

  1298.     def slot_canvasScaleChanged(self, scale):

  1299.         self.ui.miniCanvasPreview.setViewScale(scale)

  1300. 

  1301.     @pyqtSlot(list)

  1302.     def slot_canvasPluginSelected(self, pluginList):

  1303.         self.ui.keyboard.allNotesOff(False)

  1304.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1305.         self.fSelectedPlugins = pluginList

  1306. 

  1307.     # --------------------------------------------------------------------------------------------------------

  1308.     # Canvas (host callbacks)

  1309. 

  1310.     @pyqtSlot(int, int, int, str)

  1311.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1312.         pcSplit = patchcanvas.SPLIT_UNDEF

  1313.         pcIcon  = patchcanvas.ICON_APPLICATION

  1314. 

  1315.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1316.             pcIcon = patchcanvas.ICON_PLUGIN

  1317.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1318.             pcIcon = patchcanvas.ICON_HARDWARE

  1319.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1320.             pass

  1321.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1322.             pcIcon = patchcanvas.ICON_DISTRHO

  1323.         elif clientIcon == PATCHBAY_ICON_FILE:

  1324.             pcIcon = patchcanvas.ICON_FILE

  1325. 

  1326.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1327. 

  1328.         self.updateMiniCanvasLater()

  1329. 

  1330.         if pluginId < 0:

  1331.             return

  1332.         if pluginId >= self.fPluginCount:

  1333.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1334.             return

  1335. 

  1336.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1337. 

  1338.     @pyqtSlot(int)

  1339.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1340.         patchcanvas.removeGroup(clientId)

  1341.         self.updateMiniCanvasLater()

  1342. 

  1343.     @pyqtSlot(int, str)

  1344.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1345.         patchcanvas.renameGroup(clientId, newClientName)

  1346.         self.updateMiniCanvasLater()

  1347. 

  1348.     @pyqtSlot(int, int, int)

  1349.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1350.         pcIcon = patchcanvas.ICON_APPLICATION

  1351. 

  1352.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1353.             pcIcon = patchcanvas.ICON_PLUGIN

  1354.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1355.             pcIcon = patchcanvas.ICON_HARDWARE

  1356.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1357.             pass

  1358.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1359.             pcIcon = patchcanvas.ICON_DISTRHO

  1360.         elif clientIcon == PATCHBAY_ICON_FILE:

  1361.             pcIcon = patchcanvas.ICON_FILE

  1362. 

  1363.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1364.         self.updateMiniCanvasLater()

  1365. 

  1366.         if pluginId < 0:

  1367.             return

  1368.         if pluginId >= self.fPluginCount:

  1369.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1370.             return

  1371. 

  1372.         patchcanvas.setGroupAsPlugin(clientId, pluginId, bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI))

  1373. 

  1374.     @pyqtSlot(int, int, int, str)

  1375.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1376.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1377.             portMode = patchcanvas.PORT_MODE_INPUT

  1378.         else:

  1379.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1380. 

  1381.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1382.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1383.             isAlternate = False

  1384.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1385.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1386.             isAlternate = True

  1387.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1388.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1389.             isAlternate = False

  1390.         else:

  1391.             portType    = patchcanvas.PORT_TYPE_NULL

  1392.             isAlternate = False

  1393. 

  1394.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1395.         self.updateMiniCanvasLater()

  1396. 

  1397.     @pyqtSlot(int, int)

  1398.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1399.         patchcanvas.removePort(groupId, portId)

  1400.         self.updateMiniCanvasLater()

  1401. 

  1402.     @pyqtSlot(int, int, str)

  1403.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1404.         patchcanvas.renamePort(groupId, portId, newPortName)

  1405.         self.updateMiniCanvasLater()

  1406. 

  1407.     @pyqtSlot(int, int, int, int, int)

  1408.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1409.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1410.         self.updateMiniCanvasLater()

  1411. 

  1412.     @pyqtSlot(int, int, int)

  1413.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1414.         patchcanvas.disconnectPorts(connectionId)

  1415.         self.updateMiniCanvasLater()

  1416. 

  1417.     # --------------------------------------------------------------------------------------------------------

  1418.     # Settings

  1419. 

  1420.     def saveSettings(self):

  1421.         settings = QSettings()

  1422. 

  1423.         settings.setValue("Geometry", self.saveGeometry())

  1424. 

  1425.         #settings.setValue("SplitterState", self.ui.splitter.saveState())

  1426. 

  1427.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1428. 

  1429.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1430. 

  1431.         diskFolders = []

  1432. 

  1433.         for i in range(self.ui.cb_disk.count()):

  1434.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1435. 

  1436.         settings.setValue("DiskFolders", diskFolders)

  1437. 

  1438.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1439.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1440.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1441.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1442. 

  1443.     def loadSettings(self, firstTime):

  1444.         settings = QSettings()

  1445. 

  1446.         if firstTime:

  1447.             self.restoreGeometry(settings.value("Geometry", b""))

  1448. 

  1449.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1450.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1451.             self.ui.toolBar.setEnabled(showToolbar)

  1452.             self.ui.toolBar.setVisible(showToolbar)

  1453. 

  1454.             #if settings.contains("SplitterState"):

  1455.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1456.             #else:

  1457.                 #self.ui.splitter.setSizes([210, 99999])

  1458. 

  1459.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1460.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1461.             self.ui.dockWidget.setEnabled(showSidePanel)

  1462.             self.ui.dockWidget.setVisible(showSidePanel)

  1463. 

  1464.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1465. 

  1466.             self.ui.cb_disk.setItemData(0, HOME)

  1467. 

  1468.             for i in range(len(diskFolders)):

  1469.                 if i == 0: continue

  1470.                 folder = diskFolders[i]

  1471.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1472. 

  1473.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1474.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1475. 

  1476.             showMeters = settings.value("ShowMeters", False, type=bool)

  1477.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1478.             self.ui.peak_in.setVisible(showMeters)

  1479.             self.ui.peak_out.setVisible(showMeters)

  1480. 

  1481.             showKeyboard = settings.value("ShowKeyboard", not(MACOS or WINDOWS), type=bool)

  1482.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1483.             self.ui.scrollArea.setVisible(showKeyboard)

  1484. 

  1485.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1486. 

  1487.         # TODO - complete this

  1488. 

  1489.         self.fSavedSettings = {

  1490.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1491.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1492.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1493.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1494.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1495.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1496.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1497.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1498.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1499.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1500.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1501.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1502.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1503.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1504.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1505.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1506.         }

  1507. 

  1508.         self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1509.                                                        CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1510. 

  1511.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1512. 

  1513.         setEngineSettings(self.host)

  1514.         self.restartTimersIfNeeded()

  1515. 

  1516.     # --------------------------------------------------------------------------------------------------------

  1517.     # Settings (helpers)

  1518. 

  1519.     @pyqtSlot()

  1520.     def slot_restoreCanvasScrollbarValues(self):

  1521.         settings = QSettings()

  1522.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1523.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1524. 

  1525.     # --------------------------------------------------------------------------------------------------------

  1526.     # Settings (menu actions)

  1527. 

  1528.     @pyqtSlot(bool)

  1529.     def slot_showSidePanel(self, yesNo):

  1530.         self.ui.dockWidget.setEnabled(yesNo)

  1531.         self.ui.dockWidget.setVisible(yesNo)

  1532. 

  1533.     @pyqtSlot(bool)

  1534.     def slot_showToolbar(self, yesNo):

  1535.         self.ui.toolBar.setEnabled(yesNo)

  1536.         self.ui.toolBar.setVisible(yesNo)

  1537. 

  1538.     @pyqtSlot(bool)

  1539.     def slot_showCanvasMeters(self, yesNo):

  1540.         self.ui.peak_in.setVisible(yesNo)

  1541.         self.ui.peak_out.setVisible(yesNo)

  1542.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1543. 

  1544.     @pyqtSlot(bool)

  1545.     def slot_showCanvasKeyboard(self, yesNo):

  1546.         self.ui.scrollArea.setVisible(yesNo)

  1547.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1548. 

  1549.     @pyqtSlot()

  1550.     def slot_configureCarla(self):

  1551.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1552.         if not dialog.exec_():

  1553.             return

  1554. 

  1555.         self.loadSettings(False)

  1556. 

  1557.         patchcanvas.clear()

  1558. 

  1559.         self.setupCanvas()

  1560.         self.slot_miniCanvasCheckAll()

  1561. 

  1562.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1563.             pass

  1564.         elif self.host.is_engine_running():

  1565.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1566. 

  1567.         for pitem in self.fPluginList:

  1568.             if pitem is None:

  1569.                 break

  1570.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1571.             pitem.recreateWidget()

  1572. 

  1573.     # --------------------------------------------------------------------------------------------------------

  1574.     # About (menu actions)

  1575. 

  1576.     @pyqtSlot()

  1577.     def slot_aboutCarla(self):

  1578.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1579. 

  1580.     @pyqtSlot()

  1581.     def slot_aboutQt(self):

  1582.         QApplication.instance().aboutQt()

  1583. 

  1584.     # --------------------------------------------------------------------------------------------------------

  1585.     # Disk (menu actions)

  1586. 

  1587.     @pyqtSlot(int)

  1588.     def slot_diskFolderChanged(self, index):

  1589.         if index < 0:

  1590.             return

  1591.         elif index == 0:

  1592.             filename = HOME

  1593.             self.ui.b_disk_remove.setEnabled(False)

  1594.         else:

  1595.             filename = self.ui.cb_disk.itemData(index)

  1596.             self.ui.b_disk_remove.setEnabled(True)

  1597. 

  1598.         self.fDirModel.setRootPath(filename)

  1599.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1600. 

  1601.     @pyqtSlot()

  1602.     def slot_diskFolderAdd(self):

  1603.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1604. 

  1605.         if newPath:

  1606.             if newPath[-1] == os.sep:

  1607.                 newPath = newPath[:-1]

  1608.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1609.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1610.             self.ui.b_disk_remove.setEnabled(True)

  1611. 

  1612.     @pyqtSlot()

  1613.     def slot_diskFolderRemove(self):

  1614.         index = self.ui.cb_disk.currentIndex()

  1615. 

  1616.         if index <= 0:

  1617.             return

  1618. 

  1619.         self.ui.cb_disk.removeItem(index)

  1620. 

  1621.         if self.ui.cb_disk.currentIndex() == 0:

  1622.             self.ui.b_disk_remove.setEnabled(False)

  1623. 

  1624.     @pyqtSlot(QModelIndex)

  1625.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1626.         filename = self.fDirModel.filePath(modelIndex)

  1627. 

  1628.         if not self.ui.listWidget.isDragUrlValid(filename):

  1629.             return

  1630. 

  1631.         if not self.host.load_file(filename):

  1632.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1633.                              self.tr("Failed to load file"),

  1634.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1635. 

  1636.     # --------------------------------------------------------------------------------------------------------

  1637.     # Transport

  1638. 

  1639.     def refreshTransport(self, forced = False):

  1640.         if not self.isVisible():

  1641.             return

  1642.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1643.             return

  1644. 

  1645.         timeInfo = self.host.get_transport_info()

  1646.         playing  = timeInfo['playing']

  1647.         frame    = timeInfo['frame']

  1648.         bpm      = timeInfo['bpm']

  1649. 

  1650.         if playing != self.fLastTransportState or forced:

  1651.             if playing:

  1652.                 icon = getIcon("media-playback-pause")

  1653.                 self.ui.b_transport_play.setChecked(True)

  1654.                 self.ui.b_transport_play.setIcon(icon)

  1655.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1656.             else:

  1657.                 icon = getIcon("media-playback-start")

  1658.                 self.ui.b_transport_play.setChecked(False)

  1659.                 self.ui.b_transport_play.setIcon(icon)

  1660.                 #self.ui.b_play.setText(self.tr("&Play"))

  1661. 

  1662.             self.fLastTransportState = playing

  1663. 

  1664.         if frame != self.fLastTransportFrame or forced:

  1665.             self.fLastTransportFrame = frame

  1666. 

  1667.             time = frame / self.fSampleRate

  1668.             secs =  time % 60

  1669.             mins = (time / 60) % 60

  1670.             hrs  = (time / 3600) % 60

  1671.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1672. 

  1673.             frame1 =  frame % 1000

  1674.             frame2 = (frame / 1000) % 1000

  1675.             frame3 = (frame / 1000000) % 1000

  1676.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1677. 

  1678.             bar  = timeInfo['bar']

  1679.             beat = timeInfo['beat']

  1680.             tick = timeInfo['tick']

  1681.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1682. 

  1683.         if bpm != self.fLastTransportBPM or forced:

  1684.             self.fLastTransportBPM = bpm

  1685. 

  1686.             if bpm > 0.0:

  1687.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1688.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1689.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1690.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1691.             else:

  1692.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1693. 

  1694.     # --------------------------------------------------------------------------------------------------------

  1695.     # Transport (menu actions)

  1696. 

  1697.     @pyqtSlot(bool)

  1698.     def slot_transportPlayPause(self, toggled):

  1699.         if self.host.isPlugin or not self.host.is_engine_running():

  1700.             return

  1701. 

  1702.         if toggled:

  1703.             self.host.transport_play()

  1704.         else:

  1705.             self.host.transport_pause()

  1706. 

  1707.         self.refreshTransport()

  1708. 

  1709.     @pyqtSlot()

  1710.     def slot_transportStop(self):

  1711.         if self.host.isPlugin or not self.host.is_engine_running():

  1712.             return

  1713. 

  1714.         self.host.transport_pause()

  1715.         self.host.transport_relocate(0)

  1716. 

  1717.         self.refreshTransport()

  1718. 

  1719.     @pyqtSlot()

  1720.     def slot_transportBackwards(self):

  1721.         if self.host.isPlugin or not self.host.is_engine_running():

  1722.             return

  1723. 

  1724.         newFrame = self.host.get_current_transport_frame() - 100000

  1725. 

  1726.         if newFrame < 0:

  1727.             newFrame = 0

  1728. 

  1729.         self.host.transport_relocate(newFrame)

  1730. 

  1731.     @pyqtSlot(float)

  1732.     def slot_transportBpmChanged(self, newValue):

  1733.         self.host.transport_bpm(newValue)

  1734. 

  1735.     @pyqtSlot()

  1736.     def slot_transportForwards(self):

  1737.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1738.             return

  1739. 

  1740.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1741.         self.host.transport_relocate(newFrame)

  1742. 

  1743.     @pyqtSlot(bool)

  1744.     def slot_transportJackEnabled(self, clicked):

  1745.         if not self.host.is_engine_running():

  1746.             return

  1747.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1748.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1749.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1750. 

  1751.     @pyqtSlot(bool)

  1752.     def slot_transportLinkEnabled(self, clicked):

  1753.         if not self.host.is_engine_running():

  1754.             return

  1755.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1756.         extra = ":link:" if clicked else ""

  1757.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1758. 

  1759.     # --------------------------------------------------------------------------------------------------------

  1760.     # Canvas scrollbars

  1761. 

  1762.     @pyqtSlot(int)

  1763.     def slot_horizontalScrollBarChanged(self, value):

  1764.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1765.         if maximum == 0:

  1766.             xp = 0

  1767.         else:

  1768.             xp = float(value) / maximum

  1769.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1770.         self.updateCanvasInitialPos()

  1771. 

  1772.     @pyqtSlot(int)

  1773.     def slot_verticalScrollBarChanged(self, value):

  1774.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1775.         if maximum == 0:

  1776.             yp = 0

  1777.         else:

  1778.             yp = float(value) / maximum

  1779.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1780.         self.updateCanvasInitialPos()

  1781. 

  1782.     # --------------------------------------------------------------------------------------------------------

  1783.     # Canvas keyboard

  1784. 

  1785.     @pyqtSlot(int)

  1786.     def slot_noteOn(self, note):

  1787.         for pluginId in self.fSelectedPlugins:

  1788.             self.host.send_midi_note(pluginId, 0, note, 100)

  1789. 

  1790.             pedit = self.getPluginEditDialog(pluginId)

  1791.             pedit.noteOn(0, note, 100)

  1792. 

  1793.     @pyqtSlot(int)

  1794.     def slot_noteOff(self, note):

  1795.         for pluginId in self.fSelectedPlugins:

  1796.             self.host.send_midi_note(pluginId, 0, note, 0)

  1797. 

  1798.             pedit = self.getPluginEditDialog(pluginId)

  1799.             pedit.noteOff(0, note)

  1800. 

  1801.     # --------------------------------------------------------------------------------------------------------

  1802.     # Canvas keyboard (host callbacks)

  1803. 

  1804.     @pyqtSlot(int, int, int, int)

  1805.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1806.         if pluginId in self.fSelectedPlugins:

  1807.             self.ui.keyboard.sendNoteOn(note, False)

  1808. 

  1809.     @pyqtSlot(int, int, int)

  1810.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1811.         if pluginId in self.fSelectedPlugins:

  1812.             self.ui.keyboard.sendNoteOff(note, False)

  1813. 

  1814.     # --------------------------------------------------------------------------------------------------------

  1815. 

  1816.     @pyqtSlot(int)

  1817.     def slot_handleUpdateCallback(self, pluginId):

  1818.         pitem = self.getPluginItem(pluginId)

  1819. 

  1820.         if pitem is None:

  1821.             return

  1822. 

  1823.         wasCompacted = pitem.isCompacted()

  1824.         isCompacted  = wasCompacted

  1825. 

  1826.         for i in range(self.host.get_custom_data_count(pluginId)):

  1827.             cdata = self.host.get_custom_data(pluginId, i)

  1828. 

  1829.             if cdata['type'] == CUSTOM_DATA_TYPE_PROPERTY and cdata['key'] == "CarlaSkinIsCompacted":

  1830.                 isCompacted = bool(cdata['value'] == "true")

  1831.                 break

  1832.         else:

  1833.             return

  1834. 

  1835.         if wasCompacted == isCompacted:

  1836.             return

  1837. 

  1838.         pitem.recreateWidget(True)

  1839. 

  1840.     # --------------------------------------------------------------------------------------------------------

  1841.     # MiniCanvas stuff

  1842. 

  1843.     @pyqtSlot()

  1844.     def slot_miniCanvasCheckAll(self):

  1845.         self.slot_miniCanvasCheckSize()

  1846.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1847.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1848. 

  1849.     @pyqtSlot()

  1850.     def slot_miniCanvasCheckSize(self):

  1851.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1852.             return

  1853. 

  1854.         currentIndex = self.ui.tabWidget.currentIndex()

  1855. 

  1856.         if currentIndex == 1:

  1857.             width  = self.ui.graphicsView.width()

  1858.             height = self.ui.graphicsView.height()

  1859.         else:

  1860.             self.ui.tabWidget.blockSignals(True)

  1861.             self.ui.tabWidget.setCurrentIndex(1)

  1862.             width  = self.ui.graphicsView.width()

  1863.             height = self.ui.graphicsView.height()

  1864.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1865.             self.ui.tabWidget.blockSignals(False)

  1866. 

  1867.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1868. 

  1869.     @pyqtSlot(float, float)

  1870.     def slot_miniCanvasMoved(self, xp, yp):

  1871.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1872.         vsb = self.ui.graphicsView.verticalScrollBar()

  1873.         hsb.setValue(xp * hsb.maximum())

  1874.         vsb.setValue(yp * vsb.maximum())

  1875.         self.updateCanvasInitialPos()

  1876. 

  1877.     # --------------------------------------------------------------------------------------------------------

  1878.     # Timers

  1879. 

  1880.     def startTimers(self):

  1881.         if self.fIdleTimerFast == 0:

  1882.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1883. 

  1884.         if self.fIdleTimerSlow == 0:

  1885.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1886. 

  1887.     def restartTimersIfNeeded(self):

  1888.         if self.fIdleTimerFast != 0:

  1889.             self.killTimer(self.fIdleTimerFast)

  1890.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1891. 

  1892.         if self.fIdleTimerSlow != 0:

  1893.             self.killTimer(self.fIdleTimerSlow)

  1894.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1895. 

  1896.     def killTimers(self):

  1897.         if self.fIdleTimerFast != 0:

  1898.             self.killTimer(self.fIdleTimerFast)

  1899.             self.fIdleTimerFast = 0

  1900. 

  1901.         if self.fIdleTimerSlow != 0:

  1902.             self.killTimer(self.fIdleTimerSlow)

  1903.             self.fIdleTimerSlow = 0

  1904. 

  1905.     # --------------------------------------------------------------------------------------------------------

  1906.     # Misc

  1907. 

  1908.     @pyqtSlot(int)

  1909.     def slot_tabChanged(self, index):

  1910.         if index != 1:

  1911.             return

  1912. 

  1913.         self.ui.graphicsView.setFocus()

  1914. 

  1915.     @pyqtSlot(int)

  1916.     def slot_handleReloadAllCallback(self, pluginId):

  1917.         if pluginId >= self.fPluginCount:

  1918.             return

  1919. 

  1920.         pitem = self.fPluginList[pluginId]

  1921.         if pitem is None:

  1922.             return

  1923. 

  1924.         pitem.recreateWidget()

  1925. 

  1926.     # --------------------------------------------------------------------------------------------------------

  1927. 

  1928.     @pyqtSlot(int, int, str)

  1929.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  1930.         # Error

  1931.         if value1 == 0:

  1932.             pass

  1933. 

  1934.         # Reply

  1935.         elif value1 == 1:

  1936.             self.fFirstEngineInit    = False

  1937.             self.fSessionManagerName = valueStr

  1938.             self.setProperWindowTitle()

  1939. 

  1940.         # Open

  1941.         elif value1 == 2:

  1942.             self.fClientName      = os.path.basename(valueStr)

  1943.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  1944.             self.setProperWindowTitle()

  1945. 

  1946.             self.fCustomStopAction = 2

  1947.             self.slot_engineStop(True)

  1948.             return

  1949. 

  1950.         # Save

  1951.         elif value1 == 3:

  1952.             self.saveProjectNow()

  1953. 

  1954.         # Session is Loaded

  1955.         elif value1 == 4:

  1956.             pass

  1957. 

  1958.         # Show Optional Gui

  1959.         elif value1 == 5:

  1960.             self.show()

  1961. 

  1962.         # Hide Optional Gui

  1963.         elif value1 == 6:

  1964.             self.hide()

  1965. 

  1966.         self.host.nsm_ready(value1)

  1967. 

  1968.     # --------------------------------------------------------------------------------------------------------

  1969. 

  1970.     def fixLogText(self, text):

  1971.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  1972. 

  1973.     @pyqtSlot(int, int, int, float, str)

  1974.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  1975.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  1976. 

  1977.     @pyqtSlot(str)

  1978.     def slot_handleInfoCallback(self, info):

  1979.         QMessageBox.information(self, "Information", info)

  1980. 

  1981.     @pyqtSlot(str)

  1982.     def slot_handleErrorCallback(self, error):

  1983.         QMessageBox.critical(self, "Error", error)

  1984. 

  1985.     @pyqtSlot()

  1986.     def slot_handleQuitCallback(self):

  1987.         pass # TODO

  1988. 

  1989.     # --------------------------------------------------------------------------------------------------------

  1990. 

  1991.     @pyqtSlot()

  1992.     def slot_handleSIGUSR1(self):

  1993.         print("Got SIGUSR1 -> Saving project now")

  1994.         self.slot_fileSave()

  1995. 

  1996.     @pyqtSlot()

  1997.     def slot_handleSIGTERM(self):

  1998.         print("Got SIGTERM -> Closing now")

  1999.         self.fCustomStopAction = 1

  2000.         self.slot_engineStop(True)

  2001. 

  2002.     # --------------------------------------------------------------------------------------------------------

  2003.     # Internal stuff

  2004. 

  2005.     def getExtraPtr(self, plugin):

  2006.         ptype = plugin['type']

  2007. 

  2008.         if ptype == PLUGIN_LADSPA:

  2009.             uniqueId = plugin['uniqueId']

  2010. 

  2011.             self.maybeLoadRDFs()

  2012. 

  2013.             for rdfItem in self.fLadspaRdfList:

  2014.                 if rdfItem.UniqueID == uniqueId:

  2015.                     return pointer(rdfItem)

  2016. 

  2017.         elif ptype in (PLUGIN_GIG, PLUGIN_SF2):

  2018.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2019.                 return self._true

  2020. 

  2021.         return None

  2022. 

  2023.     def maybeLoadRDFs(self):

  2024.         if not self.fLadspaRdfNeedsUpdate:

  2025.             return

  2026. 

  2027.         self.fLadspaRdfNeedsUpdate = False

  2028.         self.fLadspaRdfList = []

  2029. 

  2030.         if not haveLRDF:

  2031.             return

  2032. 

  2033.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2034.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2035. 

  2036.         if os.path.exists(frLadspaFile):

  2037.             frLadspa = open(frLadspaFile, 'r')

  2038. 

  2039.             try:

  2040.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2041.             except:

  2042.                 pass

  2043. 

  2044.             frLadspa.close()

  2045. 

  2046.     # --------------------------------------------------------------------------------------------------------

  2047. 

  2048.     def getPluginItem(self, pluginId):

  2049.         if pluginId >= self.fPluginCount:

  2050.             return None

  2051. 

  2052.         pitem = self.fPluginList[pluginId]

  2053.         if pitem is None:

  2054.             return None

  2055.         #if False:

  2056.             #return CarlaRackItem(self, 0, False)

  2057. 

  2058.         return pitem

  2059. 

  2060.     def getPluginEditDialog(self, pluginId):

  2061.         if pluginId >= self.fPluginCount:

  2062.             return None

  2063. 

  2064.         pitem = self.fPluginList[pluginId]

  2065.         if pitem is None:

  2066.             return None

  2067.         if False:

  2068.             return PluginEdit(self, self.host, 0)

  2069. 

  2070.         return pitem.getEditDialog()

  2071. 

  2072.     def getPluginSlotWidget(self, pluginId):

  2073.         if pluginId >= self.fPluginCount:

  2074.             return None

  2075. 

  2076.         pitem = self.fPluginList[pluginId]

  2077.         if pitem is None:

  2078.             return None

  2079.         #if False:

  2080.             #return AbstractPluginSlot()

  2081. 

  2082.         return pitem.getWidget()

  2083. 

  2084.     # --------------------------------------------------------------------------------------------------------

  2085. 

  2086.     def waitForPendingEvents(self):

  2087.         pass

  2088. 

  2089.     # --------------------------------------------------------------------------------------------------------

  2090.     # show/hide event

  2091. 

  2092.     def showEvent(self, event):

  2093.         self.refreshTransport(True)

  2094.         QMainWindow.showEvent(self, event)

  2095. 

  2096.         # set our gui as parent for all plugins UIs

  2097.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2098.             winIdStr = "%x" % int(self.winId())

  2099.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2100. 

  2101.     def hideEvent(self, event):

  2102.         # disable parent

  2103.         if not (self.host.isControl or self.host.isPlugin):

  2104.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2105. 

  2106.         QMainWindow.hideEvent(self, event)

  2107. 

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

  2109.     # resize event

  2110. 

  2111.     def fixCanvasPreviewSize(self):

  2112.         self.ui.patchbay.resize(self.ui.rack.size())

  2113.         self.slot_miniCanvasCheckSize()

  2114. 

  2115.     def resizeEvent(self, event):

  2116.         QMainWindow.resizeEvent(self, event)

  2117. 

  2118.         if self.ui.tabWidget.currentIndex() != 1:

  2119.             size = self.ui.rack.size()

  2120.             self.ui.patchbay.resize(size)

  2121. 

  2122.         self.slot_miniCanvasCheckSize()

  2123. 

  2124.     # --------------------------------------------------------------------------------------------------------

  2125.     # timer event

  2126. 

  2127.     def idleFast(self):

  2128.         self.host.engine_idle()

  2129.         self.refreshTransport()

  2130. 

  2131.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2132.             return

  2133. 

  2134.         for pitem in self.fPluginList:

  2135.             if pitem is None:

  2136.                 break

  2137. 

  2138.             pitem.getWidget().idleFast()

  2139. 

  2140.         for pluginId in self.fSelectedPlugins:

  2141.             self.fPeaksCleared = False

  2142.             if self.ui.peak_in.isVisible():

  2143.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2144.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2145.             if self.ui.peak_out.isVisible():

  2146.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2147.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2148.             return

  2149. 

  2150.         if self.fPeaksCleared:

  2151.             return

  2152. 

  2153.         self.fPeaksCleared = True

  2154.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2155.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2156.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2157.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2158. 

  2159.     def idleSlow(self):

  2160.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2161.             return

  2162. 

  2163.         for pitem in self.fPluginList:

  2164.             if pitem is None:

  2165.                 break

  2166. 

  2167.             pitem.getWidget().idleSlow()

  2168. 

  2169.     def timerEvent(self, event):

  2170.         if event.timerId() == self.fIdleTimerFast:

  2171.             self.idleFast()

  2172. 

  2173.         elif event.timerId() == self.fIdleTimerSlow:

  2174.             self.idleSlow()

  2175. 

  2176.         QMainWindow.timerEvent(self, event)

  2177. 

  2178.     # --------------------------------------------------------------------------------------------------------

  2179.     # paint event

  2180. 

  2181.     #def paintEvent(self, event):

  2182.         #QMainWindow.paintEvent(self, event)

  2183. 

  2184.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2185.             #return

  2186. 

  2187.         #painter = QPainter(self)

  2188.         #painter.setBrush(QColor(36, 36, 36))

  2189.         #painter.setPen(QColor(62, 62, 62))

  2190.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2191. 

  2192.     # --------------------------------------------------------------------------------------------------------

  2193.     # close event

  2194. 

  2195.     def closeEvent(self, event):

  2196.         self.killTimers()

  2197.         self.saveSettings()

  2198. 

  2199.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2200.             if not self.slot_engineStop(True):

  2201.                 self.fCustomStopAction = 1

  2202.                 event.ignore()

  2203.                 return

  2204. 

  2205.         QMainWindow.closeEvent(self, event)

  2206. 

  2207. # ------------------------------------------------------------------------------------------------

  2208. # Canvas callback

  2209. 

  2210. def canvasCallback(action, value1, value2, valueStr):

  2211.     host = gCarla.gui.host

  2212. 

  2213.     if action == patchcanvas.ACTION_GROUP_INFO:

  2214.         pass

  2215. 

  2216.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2217.         pass

  2218. 

  2219.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2220.         groupId = value1

  2221.         patchcanvas.splitGroup(groupId)

  2222.         gCarla.gui.updateMiniCanvasLater()

  2223. 

  2224.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2225.         groupId = value1

  2226.         patchcanvas.joinGroup(groupId)

  2227.         gCarla.gui.updateMiniCanvasLater()

  2228. 

  2229.     elif action == patchcanvas.ACTION_PORT_INFO:

  2230.         pass

  2231. 

  2232.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2233.         pass

  2234. 

  2235.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2236.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2237. 

  2238.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2239.             print("Connection failed:", host.get_last_error())

  2240. 

  2241.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2242.         connectionId = value1

  2243. 

  2244.         if not host.patchbay_disconnect(connectionId):

  2245.             print("Disconnect failed:", host.get_last_error())

  2246. 

  2247.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2248.         pluginId = value1

  2249. 

  2250.         if not host.clone_plugin(pluginId):

  2251.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2252.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2253. 

  2254.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2255.         pluginId = value1

  2256.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2257. 

  2258.         if pwidget is not None:

  2259.             pwidget.showEditDialog()

  2260. 

  2261.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2262.         pluginId = value1

  2263.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2264. 

  2265.         if pwidget is not None:

  2266.             pwidget.showRenameDialog()

  2267. 

  2268.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2269.         pluginId = value1

  2270.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2271. 

  2272.         if pwidget is not None:

  2273.             pwidget.showReplaceDialog()

  2274. 

  2275.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2276.         pluginId = value1

  2277. 

  2278.         if not host.remove_plugin(pluginId):

  2279.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2280.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2281. 

  2282.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2283.         pluginId = value1

  2284.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2285. 

  2286.         if pwidget is not None:

  2287.             pwidget.showCustomUI()

  2288. 

  2289.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2290.         gCarla.gui.showPluginActionsMenu()

  2291. 

  2292. # ------------------------------------------------------------------------------------------------------------

  2293. # Engine callback

  2294. 

  2295. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2296.     # kdevelop likes this :)

  2297.     if False: host = CarlaHostNull()

  2298. 

  2299.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2300.         host.processMode   = value1

  2301.         host.transportMode = value2

  2302.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2303.         host.processMode   = value1

  2304.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2305.         host.transportMode = value1

  2306. 

  2307.     valueStr = charPtrToString(valueStr)

  2308. 

  2309.     if action == ENGINE_CALLBACK_DEBUG:

  2310.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2311.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2312.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2313.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2314.         host.PluginRemovedCallback.emit(pluginId)

  2315.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2316.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2317.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2318.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2319.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2320.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2321.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2322.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2323.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2324.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2325.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2326.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2327.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2328.         host.ProgramChangedCallback.emit(pluginId, value1)

  2329.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2330.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2331.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2332.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2333.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2334.         host.UiStateChangedCallback.emit(pluginId, value1)

  2335.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2336.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2337.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2338.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2339.     elif action == ENGINE_CALLBACK_UPDATE:

  2340.         host.UpdateCallback.emit(pluginId)

  2341.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2342.         host.ReloadInfoCallback.emit(pluginId)

  2343.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2344.         host.ReloadParametersCallback.emit(pluginId)

  2345.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2346.         host.ReloadProgramsCallback.emit(pluginId)

  2347.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2348.         host.ReloadAllCallback.emit(pluginId)

  2349.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2350.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2351.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2352.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2353.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2354.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2355.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2356.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2357.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2358.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2359.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2360.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2361.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2362.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2363.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2364.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2365.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2366.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2367.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2368.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2369.         host.EngineStartedCallback.emit(value1, value2, valueStr)

  2370.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2371.         host.EngineStoppedCallback.emit()

  2372.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2373.         host.ProcessModeChangedCallback.emit(value1)

  2374.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2375.         host.TransportModeChangedCallback.emit(value1)

  2376.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2377.         host.BufferSizeChangedCallback.emit(value1)

  2378.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2379.         host.SampleRateChangedCallback.emit(value3)

  2380.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2381.         host.ProjectLoadFinishedCallback.emit()

  2382.     elif action == ENGINE_CALLBACK_NSM:

  2383.         host.NSMCallback.emit(value1, value2, valueStr)

  2384.     elif action == ENGINE_CALLBACK_IDLE:

  2385.         QApplication.instance().processEvents()

  2386.     elif action == ENGINE_CALLBACK_INFO:

  2387.         host.InfoCallback.emit(valueStr)

  2388.     elif action == ENGINE_CALLBACK_ERROR:

  2389.         host.ErrorCallback.emit(valueStr)

  2390.     elif action == ENGINE_CALLBACK_QUIT:

  2391.         host.QuitCallback.emit()

  2392. 

  2393. # ------------------------------------------------------------------------------------------------------------

  2394. # File callback

  2395. 

  2396. def fileCallback(ptr, action, isDir, title, filter):

  2397.     ret = ("", "") if config_UseQt5 else ""

  2398. 

  2399.     if action == FILE_CALLBACK_DEBUG:

  2400.         pass

  2401.     elif action == FILE_CALLBACK_OPEN:

  2402.         ret = QFileDialog.getOpenFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter) ) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2403.     elif action == FILE_CALLBACK_SAVE:

  2404.         ret = QFileDialog.getSaveFileName(gCarla.gui, charPtrToString(title), "", charPtrToString(filter), QFileDialog.ShowDirsOnly if isDir else 0x0)

  2405. 

  2406.     if config_UseQt5:

  2407.         ret = ret[0]

  2408.     if not ret:

  2409.         return None

  2410. 

  2411.     # FIXME

  2412.     global fileRet

  2413.     fileRet = c_char_p(ret.encode("utf-8"))

  2414.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2415.     return retval.contents.value

  2416. 

  2417. # ------------------------------------------------------------------------------------------------------------

  2418. # Init host

  2419. 

  2420. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2421.     pathBinaries, pathResources = getPaths(libPrefix)

  2422. 

  2423.     # --------------------------------------------------------------------------------------------------------

  2424.     # Check if we should open main lib as local or global

  2425. 

  2426.     settings = QSettings("falkTX", "Carla2")

  2427. 

  2428.     try:

  2429.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2430.     except:

  2431.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2432. 

  2433.     # --------------------------------------------------------------------------------------------------------

  2434.     # Fail if binary dir is not found

  2435. 

  2436.     if not os.path.exists(pathBinaries):

  2437.         if failError:

  2438.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2439.             sys.exit(1)

  2440.         return

  2441. 

  2442.     # --------------------------------------------------------------------------------------------------------

  2443.     # Set Carla library name

  2444. 

  2445.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2446.     libname   = os.path.join(pathBinaries, libname)

  2447.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2448. 

  2449.     # --------------------------------------------------------------------------------------------------------

  2450.     # Print info

  2451. 

  2452.     print("Carla %s started, status:" % VERSION)

  2453.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2454.     print("  Qt version:     %s" % qVersion())

  2455.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2456.     print("  Binary dir:     %s" % pathBinaries)

  2457.     print("  Resources dir:  %s" % pathResources)

  2458. 

  2459.     # --------------------------------------------------------------------------------------------------------

  2460.     # Init host

  2461. 

  2462.     if failError:

  2463.         # no try

  2464.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2465.     else:

  2466.         try:

  2467.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2468.         except:

  2469.             host = CarlaHostQtNull()

  2470. 

  2471.     host.isControl = isControl

  2472.     host.isPlugin  = isPlugin

  2473. 

  2474.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2475.     host.set_file_callback(fileCallback)

  2476. 

  2477.     # If it's a plugin the paths are already set

  2478.     if not isPlugin:

  2479.         host.pathBinaries  = pathBinaries

  2480.         host.pathResources = pathResources

  2481.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2482.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2483. 

  2484.         if not isControl:

  2485.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2486. 

  2487.     # --------------------------------------------------------------------------------------------------------

  2488.     # Init utils

  2489. 

  2490.     gCarla.utils = CarlaUtils(utilsname)

  2491.     gCarla.utils.set_process_name(os.path.basename(initName))

  2492. 

  2493.     try:

  2494.         sys.stdout.flush()

  2495.     except:

  2496.         pass

  2497. 

  2498.     sys.stdout = CarlaPrint(False)

  2499.     sys.stderr = CarlaPrint(True)

  2500. 

  2501.     if config_UseQt5:

  2502.         sys.excepthook = sys_excepthook

  2503. 

  2504.     # --------------------------------------------------------------------------------------------------------

  2505.     # Done

  2506. 

  2507.     return host

  2508. 

  2509. # ------------------------------------------------------------------------------------------------------------

  2510. # Load host settings

  2511. 

  2512. def loadHostSettings(host):

  2513.     # kdevelop likes this :)

  2514.     if False: host = CarlaHostNull()

  2515. 

  2516.     settings = QSettings("falkTX", "Carla2")

  2517. 

  2518.     try:

  2519.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2520.     except:

  2521.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2522. 

  2523.     try:

  2524.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2525.     except:

  2526.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2527. 

  2528.     try:

  2529.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2530.     except:

  2531.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2532. 

  2533.     try:

  2534.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2535.     except:

  2536.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2537. 

  2538.     try:

  2539.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2540.     except:

  2541.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2542. 

  2543.     try:

  2544.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2545.     except:

  2546.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2547. 

  2548.     try:

  2549.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2550.     except:

  2551.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2552. 

  2553.     try:

  2554.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2555.     except:

  2556.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2557. 

  2558.     try:

  2559.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2560.     except:

  2561.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2562. 

  2563.     try:

  2564.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2565.     except:

  2566.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2567. 

  2568.     try:

  2569.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2570.     except:

  2571.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2572. 

  2573.     try:

  2574.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2575.     except:

  2576.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2577. 

  2578.     try:

  2579.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2580.     except:

  2581.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2582. 

  2583.     if host.isPlugin:

  2584.         return

  2585. 

  2586.     # enums

  2587.     if host.audioDriverForced is None:

  2588.         try:

  2589.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2590.         except:

  2591.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2592. 

  2593.     if not host.processModeForced:

  2594.         try:

  2595.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2596.         except:

  2597.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2598. 

  2599.     host.nextProcessMode = host.processMode

  2600. 

  2601.     # --------------------------------------------------------------------------------------------------------

  2602.     # fix things if needed

  2603. 

  2604.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2605.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2606.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2607. 

  2608.     # --------------------------------------------------------------------------------------------------------

  2609.     # run headless host now if nogui option enabled

  2610. 

  2611.     if gCarla.nogui:

  2612.         runHostWithoutUI(host)

  2613. 

  2614. # ------------------------------------------------------------------------------------------------------------

  2615. # Set host settings

  2616. 

  2617. def setHostSettings(host):

  2618.     # kdevelop likes this :)

  2619.     if False: host = CarlaHostNull()

  2620. 

  2621.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2622.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2623.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2624.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2625.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2626.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2627.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2628.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2629. 

  2630.     if host.isPlugin:

  2631.         return

  2632. 

  2633.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2634.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2635. 

  2636. # ------------------------------------------------------------------------------------------------------------

  2637. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2638. 

  2639. def setEngineSettings(host):

  2640.     # kdevelop likes this :)

  2641.     if False: host = CarlaHostNull()

  2642. 

  2643.     # --------------------------------------------------------------------------------------------------------

  2644.     # do nothing if control

  2645. 

  2646.     if host.isControl:

  2647.         return "Control"

  2648. 

  2649.     # --------------------------------------------------------------------------------------------------------

  2650. 

  2651.     settings = QSettings("falkTX", "Carla2")

  2652. 

  2653.     # --------------------------------------------------------------------------------------------------------

  2654.     # main settings

  2655. 

  2656.     setHostSettings(host)

  2657. 

  2658.     # --------------------------------------------------------------------------------------------------------

  2659.     # plugin paths

  2660. 

  2661.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2662.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2663.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2664.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2665.     GIG_PATH    = toList(settings.value(CARLA_KEY_PATHS_GIG,    CARLA_DEFAULT_GIG_PATH))

  2666.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2667.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2668. 

  2669.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2670.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2671.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2672.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2673.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_GIG,    splitter.join(GIG_PATH))

  2674.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2675.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2676. 

  2677.     # --------------------------------------------------------------------------------------------------------

  2678.     # don't continue if plugin

  2679. 

  2680.     if host.isPlugin:

  2681.         return "Plugin"

  2682. 

  2683.     # --------------------------------------------------------------------------------------------------------

  2684.     # driver and device settings

  2685. 

  2686.     # driver name

  2687.     if host.audioDriverForced is not None:

  2688.         audioDriver = host.audioDriverForced

  2689.     else:

  2690.         try:

  2691.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2692.         except:

  2693.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2694. 

  2695.     # driver options

  2696.     try:

  2697.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2698.     except:

  2699.         audioDevice = ""

  2700. 

  2701.     try:

  2702.         audioNumPeriods = settings.value("%s%s/NumPeriods" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_NUM_PERIODS, type=int)

  2703.     except:

  2704.         audioNumPeriods = CARLA_DEFAULT_AUDIO_NUM_PERIODS

  2705. 

  2706.     try:

  2707.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2708.     except:

  2709.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2710. 

  2711.     try:

  2712.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2713.     except:

  2714.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2715. 

  2716.     host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE,      0,               audioDevice)

  2717.     host.set_engine_option(ENGINE_OPTION_AUDIO_NUM_PERIODS, audioNumPeriods, "")

  2718.     host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2719.     host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2720. 

  2721.     # --------------------------------------------------------------------------------------------------------

  2722.     # fix things if needed

  2723. 

  2724.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2725.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2726.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2727. 

  2728.     # --------------------------------------------------------------------------------------------------------

  2729.     # wine settings

  2730. 

  2731.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2732.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2733.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2734.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2735.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2736.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2737. 

  2738.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2739.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2740.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2741.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2742.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2743.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2744. 

  2745.     # --------------------------------------------------------------------------------------------------------

  2746.     # return selected driver name

  2747. 

  2748.     return audioDriver

  2749. 

  2750. # ------------------------------------------------------------------------------------------------------------

  2751. # Run Carla without showing UI

  2752. 

  2753. def runHostWithoutUI(host):

  2754.     # kdevelop likes this :)

  2755.     if False: host = CarlaHostNull()

  2756. 

  2757.     # --------------------------------------------------------------------------------------------------------

  2758.     # Some initial checks

  2759. 

  2760.     if not gCarla.nogui:

  2761.         return

  2762. 

  2763.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2764. 

  2765.     if not projectFile:

  2766.         print("Carla no-gui mode can only be used together with a project file.")

  2767.         sys.exit(1)

  2768. 

  2769.     # --------------------------------------------------------------------------------------------------------

  2770.     # Additional imports

  2771. 

  2772.     from time import sleep

  2773. 

  2774.     # --------------------------------------------------------------------------------------------------------

  2775.     # Init engine

  2776. 

  2777.     audioDriver = setEngineSettings(host)

  2778.     if not host.engine_init(audioDriver, "Carla-nogui"):

  2779.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2780.         sys.exit(1)

  2781. 

  2782.     if not host.load_project(projectFile):

  2783.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2784.         host.engine_close()

  2785.         sys.exit(1)

  2786. 

  2787.     # --------------------------------------------------------------------------------------------------------

  2788.     # Idle

  2789. 

  2790.     while host.is_engine_running() and not gCarla.term:

  2791.         host.engine_idle()

  2792.         sleep(0.5)

  2793. 

  2794.     # --------------------------------------------------------------------------------------------------------

  2795.     # Stop

  2796. 

  2797.     host.engine_close()

  2798.     sys.exit(0)

  2799. 

  2800. # ------------------------------------------------------------------------------------------------------------