falkTX
/
Carla
mirror of https://github.com/falkTX/Carla
1
0
Fork 0
Code Releases 42 Activity
Audio plugin host https://kx.studio/carla
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
4813 Commits
16 Branches
425MB
Tree: 60cb053d04
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from '60cb053d04'
${ noResults }
Carla/source/frontend/carla_host.py

3150 lines
123KB
Raw Blame History 

  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2019 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

  24. from PyQt5.Qt import PYQT_VERSION

  25. from PyQt5.QtCore import qCritical, QEventLoop, QFileInfo, QModelIndex, QPointF, QTimer, QEvent

  26. from PyQt5.QtGui import QImage, QPalette, QBrush

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

  28. 

  29. # ------------------------------------------------------------------------------------------------------------

  30. # Imports (Custom)

  31. 

  32. import ui_carla_host

  33. 

  34. from carla_app import *

  35. from carla_database import *

  36. from carla_settings import *

  37. from carla_utils import *

  38. from carla_widgets import *

  39. 

  40. from patchcanvas import patchcanvas

  41. from widgets.digitalpeakmeter import DigitalPeakMeter

  42. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  43. 

  44. # ------------------------------------------------------------------------------------------------------------

  45. # Try Import OpenGL

  46. 

  47. try:

  48.     from PyQt5.QtOpenGL import QGLWidget

  49.     hasGL = True

  50. except:

  51.     hasGL = False

  52. 

  53. # ------------------------------------------------------------------------------------------------------------

  54. # Safe exception hook, needed for PyQt5

  55. 

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

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

  58. 

  59. # ------------------------------------------------------------------------------------------------------------

  60. # Session Management support

  61. 

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

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

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

  65. 

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

  67. # Small print helper

  68. 

  69. def processMode2Str(processMode):

  70.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  71.         return "Single client"

  72.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  73.         return "Multi client"

  74.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  75.         return "Continuous Rack"

  76.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  77.         return "Patchbay"

  78.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  79.         return "Bridge"

  80.     return "Unknown"

  81. 

  82. # ------------------------------------------------------------------------------------------------------------

  83. # Carla Print class

  84. 

  85. class CarlaPrint:

  86.     def __init__(self, err):

  87.         self.err = err

  88. 

  89.     def flush(self):

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

  91. 

  92.     def write(self, string):

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

  94. 

  95. # ------------------------------------------------------------------------------------------------------------

  96. # Host Window

  97. 

  98. class HostWindow(QMainWindow):

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

  100.     # signals

  101.     SIGTERM = pyqtSignal()

  102.     SIGUSR1 = pyqtSignal()

  103. 

  104.     # CustomActions

  105.     CUSTOM_ACTION_NONE         = 0

  106.     CUSTOM_ACTION_APP_CLOSE    = 1

  107.     CUSTOM_ACTION_PROJECT_LOAD = 2

  108. 

  109.     # --------------------------------------------------------------------------------------------------------

  110. 

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

  112.         QMainWindow.__init__(self, parent)

  113.         self.host = host

  114.         self.ui = ui_carla_host.Ui_CarlaHostW()

  115.         self.ui.setupUi(self)

  116.         gCarla.gui = self

  117. 

  118.         if False:

  119.             # kdevelop likes this :)

  120.             host = CarlaHostNull()

  121.             self.host = host

  122. 

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

  124. 

  125.         self.fParentOrSelf = parent or self

  126. 

  127.         # ----------------------------------------------------------------------------------------------------

  128.         # Internal stuff

  129. 

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

  131.         self.fIdleTimerFast = 0

  132.         self.fIdleTimerSlow = 0

  133. 

  134.         self.fLadspaRdfNeedsUpdate = True

  135.         self.fLadspaRdfList = []

  136. 

  137.         self.fPluginCount = 0

  138.         self.fPluginList  = []

  139. 

  140.         self.fProjectFilename  = ""

  141.         self.fIsProjectLoading = False

  142.         self.fCurrentlyRemovingAllPlugins = False

  143. 

  144.         self.fLastTransportBPM   = 0.0

  145.         self.fLastTransportFrame = 0

  146.         self.fLastTransportState = False

  147.         self.fBufferSize         = 0

  148.         self.fSampleRate         = 0.0

  149.         self.fOscAddressTCP      = ""

  150.         self.fOscAddressUDP      = ""

  151. 

  152.         if MACOS:

  153.             self.fMacClosingHelper = True

  154. 

  155.         # CancelableActionCallback Box

  156.         self.fCancelableActionBox = None

  157. 

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

  159.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  160. 

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

  162.         self.fFirstEngineInit = True

  163. 

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

  165.         self.fSavedSettings = {}

  166. 

  167.         if host.isControl:

  168.             self.fClientName         = "Carla-Control"

  169.             self.fSessionManagerName = "Control"

  170.         elif host.isPlugin:

  171.             self.fClientName         = "Carla-Plugin"

  172.             self.fSessionManagerName = "Plugin"

  173.         elif LADISH_APP_NAME:

  174.             self.fClientName         = LADISH_APP_NAME

  175.             self.fSessionManagerName = "LADISH"

  176.         elif NSM_URL and host.nsmOK:

  177.             self.fClientName         = "Carla.tmp"

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

  179.         else:

  180.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  181.             self.fSessionManagerName = ""

  182. 

  183.         # ----------------------------------------------------------------------------------------------------

  184.         # Internal stuff (patchbay)

  185. 

  186.         self.fExportImage = QImage()

  187. 

  188.         self.fPeaksCleared = True

  189. 

  190.         self.fExternalPatchbay = False

  191.         self.fSelectedPlugins  = []

  192. 

  193.         self.fCanvasWidth  = 0

  194.         self.fCanvasHeight = 0

  195.         self.fMiniCanvasUpdateTimeout = 0

  196. 

  197.         self.fWithCanvas = withCanvas

  198. 

  199.         # ----------------------------------------------------------------------------------------------------

  200.         # Set up GUI (engine stopped)

  201. 

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

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

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

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

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

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

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

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

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

  211. 

  212.             if self.host.isControl:

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

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

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

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

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

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

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

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

  221.                 self.ui.act_add_jack.setVisible(False)

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

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

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

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

  226.                 #self.ui.tw_statusbar.setEnabled(False)

  227.                 #self.ui.tw_statusbar.setVisible(False)

  228.             else:

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

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

  231. 

  232.         else:

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

  234. 

  235.             if WINDOWS:

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

  237. 

  238.         if self.host.isControl:

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

  240.         else:

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

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

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

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

  245. 

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

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

  248. 

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

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

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

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

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

  254. 

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

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

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

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

  259. 

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

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

  262. 

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

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

  265. 

  266.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  284.             self.ui.tw_miniCanvas.hide()

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

  286.             if WINDOWS:

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

  288. 

  289.         # ----------------------------------------------------------------------------------------------------

  290.         # Set up GUI (disk)

  291. 

  292.         exts = gCarla.utils.get_supported_file_extensions()

  293. 

  294.         self.fDirModel = QFileSystemModel(self)

  295.         self.fDirModel.setRootPath(HOME)

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

  297. 

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

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

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

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

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

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

  304. 

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

  306.         # Set up GUI (transport)

  307. 

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

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

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

  311. 

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

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

  314. 

  315.         if minLabelWidth < labelTimeWidth:

  316.             minLabelWidth = labelTimeWidth

  317.         if minLabelWidth < labelBBTWidth:

  318.             minLabelWidth = labelBBTWidth

  319. 

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

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

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

  323. 

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

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

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

  327. 

  328.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  341. 

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

  343. 

  344.         # ----------------------------------------------------------------------------------------------------

  345.         # Set up GUI (rack)

  346. 

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

  348. 

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

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

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

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

  353. 

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

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

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

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

  358. 

  359.         self.updateStyle()

  360. 

  361.         self.ui.rack.setStyleSheet("""

  362.           CarlaRackList#CarlaRackList {

  363.             background-color: black;

  364.           }

  365.         """)

  366. 

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

  368.         # Set up GUI (patchbay)

  369. 

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

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

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

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

  374. 

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

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

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

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

  379. 

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

  381.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  383. 

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

  385. 

  386.         self.ui.miniCanvasPreview.setRealParent(self)

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

  388. 

  389.         # ----------------------------------------------------------------------------------------------------

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

  391. 

  392.         if MACOS:

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

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

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

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

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

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

  399. 

  400.         # ----------------------------------------------------------------------------------------------------

  401.         # Load Settings

  402. 

  403.         self.loadSettings(True)

  404. 

  405.         # ----------------------------------------------------------------------------------------------------

  406.         # Set-up Canvas

  407. 

  408.         if withCanvas:

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

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

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

  412. 

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

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

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

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

  417. 

  418.             self.setupCanvas()

  419. 

  420.         # ----------------------------------------------------------------------------------------------------

  421.         # Connect actions to functions

  422. 

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

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

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

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

  427. 

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

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

  430. 

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

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

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

  434. 

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

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

  437. 

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

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

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

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

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

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

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

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

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

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

  448. 

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

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

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

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

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

  454. 

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

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

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

  458. 

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

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

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

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

  463. 

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

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

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

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

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

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

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

  471. 

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

  473. 

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

  475. 

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

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

  478. 

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

  480. 

  481.         if withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  499. 

  500.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  501.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  502. 

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

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

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

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

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

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

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

  510. 

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

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

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

  514. 

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

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

  517. 

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

  519. 

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

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

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

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

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

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

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

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

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

  529. 

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

  531. 

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

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

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

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

  536. 

  537.         # ----------------------------------------------------------------------------------------------------

  538.         # Final setup

  539. 

  540.         self.ui.text_logs.clear()

  541.         self.setProperWindowTitle()

  542. 

  543.         # Disable non-supported features

  544.         features = gCarla.utils.get_supported_features()

  545. 

  546.         if "link" not in features:

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

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

  549. 

  550.         if "juce" not in features:

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

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

  553. 

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

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

  556.             self.startTimers()

  557. 

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

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

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

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

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

  563. 

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

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

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

  567. 

  568.         # Load initial project file if set

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

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

  571. 

  572.             if projectFile:

  573.                 self.loadProjectLater(projectFile)

  574. 

  575.         # For NSM we wait for the open message

  576.         if NSM_URL and host.nsmOK:

  577.             host.nsm_ready(NSM_CALLBACK_INIT)

  578.             return

  579. 

  580.         if not host.isControl:

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

  582. 

  583.     # --------------------------------------------------------------------------------------------------------

  584.     # Setup

  585. 

  586.     def compactPlugin(self, pluginId):

  587.         if pluginId > self.fPluginCount:

  588.             return

  589. 

  590.         pitem = self.fPluginList[pluginId]

  591. 

  592.         if pitem is None:

  593.             return

  594. 

  595.         pitem.recreateWidget(True)

  596. 

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

  598.         if pluginId > self.fPluginCount:

  599.             return

  600. 

  601.         pitem = self.fPluginList[pluginId]

  602. 

  603.         if pitem is None:

  604.             return

  605. 

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

  607.         pitem.recreateWidget(newColor = color)

  608. 

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

  610.         if pluginId > self.fPluginCount:

  611.             return

  612. 

  613.         pitem = self.fPluginList[pluginId]

  614. 

  615.         if pitem is None:

  616.             return

  617. 

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

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

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

  621.         else:

  622.             pitem.recreateWidget(newSkin = skin)

  623. 

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

  625.         if pluginIdA == pluginIdB:

  626.             return

  627.         if pluginIdA < 0 or pluginIdB < 0:

  628.             return

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

  630.             return

  631. 

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

  633. 

  634.         itemA = self.fPluginList[pluginIdA]

  635.         compactA = itemA.isCompacted()

  636.         guiShownA = itemA.isGuiShown()

  637. 

  638.         itemB = self.fPluginList[pluginIdB]

  639.         compactB = itemB.isCompacted()

  640.         guiShownB = itemB.isGuiShown()

  641. 

  642.         itemA.setPluginId(pluginIdA)

  643.         itemA.recreateWidget2(compactB, guiShownB)

  644. 

  645.         itemB.setPluginId(pluginIdB)

  646.         itemB.recreateWidget2(compactA, guiShownA)

  647. 

  648.         if self.fWithCanvas:

  649.             self.slot_canvasRefresh()

  650. 

  651.     def setLoadRDFsNeeded(self):

  652.         self.fLadspaRdfNeedsUpdate = True

  653. 

  654.     def setProperWindowTitle(self):

  655.         title = self.fClientName

  656. 

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

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

  659.         if self.fSessionManagerName:

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

  661. 

  662.         self.setWindowTitle(title)

  663. 

  664.     def updateBufferSize(self, newBufferSize):

  665.         if self.fBufferSize == newBufferSize:

  666.             return

  667.         self.fBufferSize = newBufferSize

  668.         self.ui.cb_buffer_size.clear()

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

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

  671. 

  672.     def updateSampleRate(self, newSampleRate):

  673.         if self.fSampleRate == newSampleRate:

  674.             return

  675.         self.fSampleRate = newSampleRate

  676.         self.ui.cb_sample_rate.clear()

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

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

  679.         self.refreshTransport(True)

  680. 

  681.     # --------------------------------------------------------------------------------------------------------

  682.     # Files

  683. 

  684.     def makeExtraFilename(self):

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

  686. 

  687.     def loadProjectNow(self):

  688.         if not self.fProjectFilename:

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

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

  691.             return

  692. 

  693.         self.projectLoadingStarted()

  694.         self.fIsProjectLoading = True

  695. 

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

  697.             self.fIsProjectLoading = False

  698.             self.projectLoadingFinished()

  699. 

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

  701.                              self.host.get_last_error(),

  702.                              QMessageBox.Ok, QMessageBox.Ok)

  703. 

  704.     def loadProjectLater(self, filename):

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

  706.         self.setProperWindowTitle()

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

  708. 

  709.     def saveProjectNow(self):

  710.         if not self.fProjectFilename:

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

  712. 

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

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

  715.                              self.host.get_last_error(),

  716.                              QMessageBox.Ok, QMessageBox.Ok)

  717.             return

  718. 

  719.         if not self.fWithCanvas:

  720.             return

  721. 

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

  723.             json.dump({

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

  725.             }, fh)

  726. 

  727.     def projectLoadingStarted(self):

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

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

  730. 

  731.     def projectLoadingFinished(self):

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

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

  734. 

  735.         if not self.fWithCanvas:

  736.             return

  737. 

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

  739. 

  740.         extrafile = self.makeExtraFilename()

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

  742.             return

  743. 

  744.         try:

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

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

  747.         except:

  748.             return

  749. 

  750.         patchcanvas.restoreGroupPositions(canvasdata)

  751. 

  752.     # --------------------------------------------------------------------------------------------------------

  753.     # Files (menu actions)

  754. 

  755.     @pyqtSlot()

  756.     def slot_fileNew(self):

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

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

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

  760.             return

  761. 

  762.         self.pluginRemoveAll()

  763.         self.fProjectFilename = ""

  764.         self.setProperWindowTitle()

  765.         self.host.clear_project_filename()

  766. 

  767.     @pyqtSlot()

  768.     def slot_fileOpen(self):

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

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

  771. 

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

  773.         if not filename:

  774.             return

  775. 

  776.         newFile = True

  777. 

  778.         if self.fPluginCount > 0:

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

  780.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  782. 

  783.         if newFile:

  784.             self.pluginRemoveAll()

  785.             self.fProjectFilename = filename

  786.             self.setProperWindowTitle()

  787.             self.loadProjectNow()

  788.         else:

  789.             filenameOld = self.fProjectFilename

  790.             self.fProjectFilename = filename

  791.             self.loadProjectNow()

  792.             self.fProjectFilename = filenameOld

  793. 

  794.     @pyqtSlot()

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

  796.         if self.fProjectFilename and not saveAs:

  797.             return self.saveProjectNow()

  798. 

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

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

  801. 

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

  803.         if not filename:

  804.             return

  805. 

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

  807.             filename += ".carxp"

  808. 

  809.         if self.fProjectFilename != filename:

  810.             self.fProjectFilename = filename

  811.             self.setProperWindowTitle()

  812. 

  813.         self.saveProjectNow()

  814. 

  815.     @pyqtSlot()

  816.     def slot_fileSaveAs(self):

  817.         self.slot_fileSave(True)

  818. 

  819.     @pyqtSlot()

  820.     def slot_loadProjectNow(self):

  821.         self.loadProjectNow()

  822. 

  823.     # --------------------------------------------------------------------------------------------------------

  824.     # Engine (menu actions)

  825. 

  826.     @pyqtSlot()

  827.     def slot_engineStart(self):

  828.         audioDriver = setEngineSettings(self.host)

  829.         firstInit   = self.fFirstEngineInit

  830. 

  831.         self.fFirstEngineInit = False

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

  833. 

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

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

  836.                 settings = QSettings()

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

  838.                 del settings

  839.                 self.host.transport_bpm(lastBpm)

  840.             return

  841. 

  842.         elif firstInit:

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

  844.             return

  845. 

  846.         audioError = self.host.get_last_error()

  847. 

  848.         if audioError:

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

  850.         else:

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

  852. 

  853.     @pyqtSlot()

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

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

  856. 

  857.         if self.fPluginCount == 0:

  858.             self.engineStopFinal()

  859.             return True

  860. 

  861.         if not forced:

  862.             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"

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

  864.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  865.             if ask != QMessageBox.Yes:

  866.                 return False

  867. 

  868.         return self.slot_engineStopTryAgain()

  869. 

  870.     @pyqtSlot()

  871.     def slot_engineStopTryAgain(self):

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

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

  874.             return False

  875. 

  876.         self.engineStopFinal()

  877.         return True

  878. 

  879.     def engineStopFinal(self):

  880.         self.killTimers()

  881. 

  882.         if self.host.is_engine_running():

  883.             if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  884.                 self.removeAllPlugins()

  885.             elif self.fPluginCount != 0:

  886.                 self.fCurrentlyRemovingAllPlugins = True

  887.                 self.projectLoadingStarted()

  888. 

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

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

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

  892. 

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

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

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

  896. 

  897.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  898.             self.close()

  899.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  900.             self.slot_engineStart()

  901.             self.loadProjectNow()

  902.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  903. 

  904.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  905. 

  906.     # --------------------------------------------------------------------------------------------------------

  907.     # Engine (host callbacks)

  908. 

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

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

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

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

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

  914. 

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

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

  917. 

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

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

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

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

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

  923.         else:

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

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

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

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

  928. 

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

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

  931. 

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

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

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

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

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

  937. 

  938.         if not self.host.isPlugin:

  939.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  940. 

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

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

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

  944. 

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

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

  947. 

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

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

  950. 

  951.         self.updateBufferSize(bufferSize)

  952.         self.updateSampleRate(int(sampleRate))

  953.         self.refreshRuntimeInfo(0.0, 0)

  954.         self.startTimers()

  955. 

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

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

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

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

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

  961. 

  962.     @pyqtSlot()

  963.     def slot_handleEngineStoppedCallback(self):

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

  965. 

  966.         patchcanvas.clear()

  967.         self.killTimers()

  968. 

  969.         # just in case

  970.         self.removeAllPlugins()

  971.         self.refreshRuntimeInfo(0.0, 0)

  972. 

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

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

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

  976. 

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

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

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

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

  981. 

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

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

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

  985. 

  986.     @pyqtSlot(int, str)

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

  988.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  989. 

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

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

  992. 

  993.     @pyqtSlot(int)

  994.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  995.         self.updateBufferSize(newBufferSize)

  996. 

  997.     @pyqtSlot(float)

  998.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  999.         self.updateSampleRate(int(newSampleRate))

  1000. 

  1001.     @pyqtSlot(int, bool, str)

  1002.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1003.         if self.fCancelableActionBox is not None:

  1004.             self.fCancelableActionBox.close()

  1005. 

  1006.         if started:

  1007.             self.fCancelableActionBox = QMessageBox(self)

  1008.             self.fCancelableActionBox.setIcon(QMessageBox.Critical)

  1009.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1010.             self.fCancelableActionBox.setText(action)

  1011.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1012.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1013.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1014.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1015.             self.fCancelableActionBox.show()

  1016. 

  1017.         else:

  1018.             self.fCancelableActionBox = None

  1019. 

  1020.     @pyqtSlot()

  1021.     def slot_canlableActionBoxClicked(self):

  1022.         self.host.cancel_engine_action()

  1023. 

  1024.     @pyqtSlot()

  1025.     def slot_handleProjectLoadFinishedCallback(self):

  1026.         self.fIsProjectLoading = False

  1027.         self.projectLoadingFinished()

  1028. 

  1029.     # --------------------------------------------------------------------------------------------------------

  1030.     # Plugins

  1031. 

  1032.     def removeAllPlugins(self):

  1033.         self.ui.act_plugin_remove_all.setEnabled(False)

  1034.         patchcanvas.handleAllPluginsRemoved()

  1035. 

  1036.         while self.ui.listWidget.takeItem(0):

  1037.             pass

  1038. 

  1039.         self.clearSideStuff()

  1040. 

  1041.         for pitem in self.fPluginList:

  1042.             if pitem is None:

  1043.                 continue

  1044. 

  1045.             pitem.close()

  1046.             del pitem

  1047. 

  1048.         self.fPluginCount = 0

  1049.         self.fPluginList  = []

  1050. 

  1051.     # --------------------------------------------------------------------------------------------------------

  1052.     # Plugins (menu actions)

  1053. 

  1054.     def showAddPluginDialog(self):

  1055.         dialog = PluginDatabaseW(self.fParentOrSelf, self.host)

  1056. 

  1057.         if not dialog.exec_():

  1058.             return

  1059. 

  1060.         if not self.host.is_engine_running():

  1061.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1062.             return

  1063. 

  1064.         btype    = dialog.fRetPlugin['build']

  1065.         ptype    = dialog.fRetPlugin['type']

  1066.         filename = dialog.fRetPlugin['filename']

  1067.         label    = dialog.fRetPlugin['label']

  1068.         uniqueId = dialog.fRetPlugin['uniqueId']

  1069.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1070. 

  1071.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1072. 

  1073.     def showAddJackAppDialog(self):

  1074.         dialog = JackApplicationW(self.fParentOrSelf, self.host)

  1075. 

  1076.         if not dialog.exec_():

  1077.             return

  1078. 

  1079.         if not self.host.is_engine_running():

  1080.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1081.             return

  1082. 

  1083.         return dialog.getCommandAndFlags()

  1084. 

  1085.     @pyqtSlot()

  1086.     def showPluginActionsMenu(self):

  1087.         menu = QMenu(self)

  1088. 

  1089.         menu.addSection("Plugins")

  1090.         menu.addAction(self.ui.act_plugin_add)

  1091.         menu.addAction(self.ui.act_plugin_remove_all)

  1092. 

  1093.         menu.addSection("All plugins (macros)")

  1094.         menu.addAction(self.ui.act_plugins_enable)

  1095.         menu.addAction(self.ui.act_plugins_disable)

  1096.         menu.addSeparator()

  1097.         menu.addAction(self.ui.act_plugins_volume100)

  1098.         menu.addAction(self.ui.act_plugins_mute)

  1099.         menu.addSeparator()

  1100.         menu.addAction(self.ui.act_plugins_wet100)

  1101.         menu.addAction(self.ui.act_plugins_bypass)

  1102.         menu.addSeparator()

  1103.         menu.addAction(self.ui.act_plugins_center)

  1104.         menu.addSeparator()

  1105.         menu.addAction(self.ui.act_plugins_compact)

  1106.         menu.addAction(self.ui.act_plugins_expand)

  1107. 

  1108.         menu.exec_(QCursor.pos())

  1109. 

  1110.     @pyqtSlot()

  1111.     def slot_pluginAdd(self):

  1112.         data = self.showAddPluginDialog()

  1113. 

  1114.         if data is None:

  1115.             return

  1116. 

  1117.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1118. 

  1119.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1120.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1121. 

  1122.     @pyqtSlot()

  1123.     def slot_confirmRemoveAll(self):

  1124.         if self.fPluginCount == 0:

  1125.             return

  1126. 

  1127.         if QMessageBox.question(self, self.tr("Remove All"),

  1128.                                       self.tr("Are you sure you want to remove all plugins?"),

  1129.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1130.             return

  1131. 

  1132.         self.pluginRemoveAll()

  1133. 

  1134.     def pluginRemoveAll(self):

  1135.         if self.fPluginCount == 0:

  1136.             return

  1137. 

  1138.         self.fCurrentlyRemovingAllPlugins = True

  1139.         self.projectLoadingStarted()

  1140. 

  1141.         if not self.host.remove_all_plugins():

  1142.             self.projectLoadingFinished()

  1143.             self.fCurrentlyRemovingAllPlugins = False

  1144.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1145.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1146. 

  1147.     @pyqtSlot()

  1148.     def slot_jackAppAdd(self):

  1149.         data = self.showAddJackAppDialog()

  1150. 

  1151.         if data is None:

  1152.             return

  1153. 

  1154.         filename, name, label = data

  1155. 

  1156.         if not filename:

  1157.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1158.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1159.             return

  1160. 

  1161.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1162.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1163.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1164. 

  1165.     # --------------------------------------------------------------------------------------------------------

  1166.     # Plugins (macros)

  1167. 

  1168.     @pyqtSlot()

  1169.     def slot_pluginsEnable(self):

  1170.         if not self.host.is_engine_running():

  1171.             return

  1172. 

  1173.         for pitem in self.fPluginList:

  1174.             if pitem is None:

  1175.                 break

  1176. 

  1177.             pitem.getWidget().setActive(True, True, True)

  1178. 

  1179.     @pyqtSlot()

  1180.     def slot_pluginsDisable(self):

  1181.         if not self.host.is_engine_running():

  1182.             return

  1183. 

  1184.         for pitem in self.fPluginList:

  1185.             if pitem is None:

  1186.                 break

  1187. 

  1188.             pitem.getWidget().setActive(False, True, True)

  1189. 

  1190.     @pyqtSlot()

  1191.     def slot_pluginsVolume100(self):

  1192.         if not self.host.is_engine_running():

  1193.             return

  1194. 

  1195.         for pitem in self.fPluginList:

  1196.             if pitem is None:

  1197.                 break

  1198. 

  1199.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1200. 

  1201.     @pyqtSlot()

  1202.     def slot_pluginsMute(self):

  1203.         if not self.host.is_engine_running():

  1204.             return

  1205. 

  1206.         for pitem in self.fPluginList:

  1207.             if pitem is None:

  1208.                 break

  1209. 

  1210.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1211. 

  1212.     @pyqtSlot()

  1213.     def slot_pluginsWet100(self):

  1214.         if not self.host.is_engine_running():

  1215.             return

  1216. 

  1217.         for pitem in self.fPluginList:

  1218.             if pitem is None:

  1219.                 break

  1220. 

  1221.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1222. 

  1223.     @pyqtSlot()

  1224.     def slot_pluginsBypass(self):

  1225.         if not self.host.is_engine_running():

  1226.             return

  1227. 

  1228.         for pitem in self.fPluginList:

  1229.             if pitem is None:

  1230.                 break

  1231. 

  1232.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1233. 

  1234.     @pyqtSlot()

  1235.     def slot_pluginsCenter(self):

  1236.         if not self.host.is_engine_running():

  1237.             return

  1238. 

  1239.         for pitem in self.fPluginList:

  1240.             if pitem is None:

  1241.                 break

  1242. 

  1243.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1244.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1245.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1246. 

  1247.     @pyqtSlot()

  1248.     def slot_pluginsCompact(self):

  1249.         for pitem in self.fPluginList:

  1250.             if pitem is None:

  1251.                 break

  1252.             pitem.compact()

  1253. 

  1254.     @pyqtSlot()

  1255.     def slot_pluginsExpand(self):

  1256.         for pitem in self.fPluginList:

  1257.             if pitem is None:

  1258.                 break

  1259.             pitem.expand()

  1260. 

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

  1262.     # Plugins (host callbacks)

  1263. 

  1264.     @pyqtSlot(int, str)

  1265.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1266.         if pluginId != self.fPluginCount:

  1267.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1268.             pitem = self.getPluginItem(pluginId)

  1269.             pitem.recreateWidget()

  1270.             return

  1271. 

  1272.         pitem = self.ui.listWidget.createItem(pluginId)

  1273.         self.fPluginList.append(pitem)

  1274.         self.fPluginCount += 1

  1275. 

  1276.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1277. 

  1278.     @pyqtSlot(int)

  1279.     def slot_handlePluginRemovedCallback(self, pluginId):

  1280.         patchcanvas.handlePluginRemoved(pluginId)

  1281. 

  1282.         if pluginId in self.fSelectedPlugins:

  1283.             self.clearSideStuff()

  1284. 

  1285.         pitem = self.getPluginItem(pluginId)

  1286. 

  1287.         self.fPluginCount -= 1

  1288.         self.fPluginList.pop(pluginId)

  1289.         self.ui.listWidget.takeItem(pluginId)

  1290. 

  1291.         if pitem is not None:

  1292.             pitem.close()

  1293.             del pitem

  1294. 

  1295.         if self.fPluginCount == 0:

  1296.             self.ui.act_plugin_remove_all.setEnabled(False)

  1297.             if self.fCurrentlyRemovingAllPlugins:

  1298.                 self.fCurrentlyRemovingAllPlugins = False

  1299.                 self.projectLoadingFinished()

  1300.             return

  1301. 

  1302.         # push all plugins 1 slot back

  1303.         for i in range(pluginId, self.fPluginCount):

  1304.             pitem = self.fPluginList[i]

  1305.             pitem.setPluginId(i)

  1306. 

  1307.         self.ui.act_plugin_remove_all.setEnabled(True)

  1308. 

  1309.     # --------------------------------------------------------------------------------------------------------

  1310.     # Canvas

  1311. 

  1312.     def clearSideStuff(self):

  1313.         if self.fWithCanvas:

  1314.             self.scene.clearSelection()

  1315. 

  1316.         self.fSelectedPlugins = []

  1317. 

  1318.         self.ui.keyboard.allNotesOff(False)

  1319.         self.ui.scrollArea.setEnabled(False)

  1320. 

  1321.         self.fPeaksCleared = True

  1322.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1323.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1324.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1325.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1326. 

  1327.     def setupCanvas(self):

  1328.         pOptions = patchcanvas.options_t()

  1329.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1330.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1331.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1332.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1333.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1334. 

  1335.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1336.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1337.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1338.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1339.         else:

  1340.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1341. 

  1342.         pFeatures = patchcanvas.features_t()

  1343.         pFeatures.group_info   = False

  1344.         pFeatures.group_rename = False

  1345.         pFeatures.port_info    = False

  1346.         pFeatures.port_rename  = False

  1347.         pFeatures.handle_group_pos = True

  1348. 

  1349.         patchcanvas.setOptions(pOptions)

  1350.         patchcanvas.setFeatures(pFeatures)

  1351.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1352. 

  1353.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1354. 

  1355.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1356.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1357.             self.fCanvasHeight = int(tryCanvasSize[1])

  1358.         else:

  1359.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1360.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1361. 

  1362.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1363.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1364.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1365. 

  1366.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1367.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1368. 

  1369.     def updateCanvasInitialPos(self):

  1370.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1371.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1372.         patchcanvas.setInitialPos(x, y)

  1373. 

  1374.     def updateMiniCanvasLater(self):

  1375.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1376. 

  1377.     # --------------------------------------------------------------------------------------------------------

  1378.     # Canvas (menu actions)

  1379. 

  1380.     @pyqtSlot()

  1381.     def slot_canvasShowInternal(self):

  1382.         self.fExternalPatchbay = False

  1383.         self.ui.act_canvas_show_internal.blockSignals(True)

  1384.         self.ui.act_canvas_show_external.blockSignals(True)

  1385.         self.ui.act_canvas_show_internal.setChecked(True)

  1386.         self.ui.act_canvas_show_external.setChecked(False)

  1387.         self.ui.act_canvas_show_internal.blockSignals(False)

  1388.         self.ui.act_canvas_show_external.blockSignals(False)

  1389.         self.slot_canvasRefresh()

  1390. 

  1391.     @pyqtSlot()

  1392.     def slot_canvasShowExternal(self):

  1393.         self.fExternalPatchbay = True

  1394.         self.ui.act_canvas_show_internal.blockSignals(True)

  1395.         self.ui.act_canvas_show_external.blockSignals(True)

  1396.         self.ui.act_canvas_show_internal.setChecked(False)

  1397.         self.ui.act_canvas_show_external.setChecked(True)

  1398.         self.ui.act_canvas_show_internal.blockSignals(False)

  1399.         self.ui.act_canvas_show_external.blockSignals(False)

  1400.         self.slot_canvasRefresh()

  1401. 

  1402.     @pyqtSlot()

  1403.     def slot_canvasArrange(self):

  1404.         patchcanvas.arrange()

  1405. 

  1406.     @pyqtSlot()

  1407.     def slot_canvasRefresh(self):

  1408.         patchcanvas.clear()

  1409. 

  1410.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1411.             return

  1412. 

  1413.         if self.host.is_engine_running():

  1414.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1415. 

  1416.         self.updateMiniCanvasLater()

  1417. 

  1418.     @pyqtSlot()

  1419.     def slot_canvasZoomFit(self):

  1420.         self.scene.zoom_fit()

  1421. 

  1422.     @pyqtSlot()

  1423.     def slot_canvasZoomIn(self):

  1424.         self.scene.zoom_in()

  1425. 

  1426.     @pyqtSlot()

  1427.     def slot_canvasZoomOut(self):

  1428.         self.scene.zoom_out()

  1429. 

  1430.     @pyqtSlot()

  1431.     def slot_canvasZoomReset(self):

  1432.         self.scene.zoom_reset()

  1433. 

  1434.     @pyqtSlot()

  1435.     def slot_canvasSaveImage(self):

  1436.         newPath, ok = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1437. 

  1438.         # FIXME use ok value, test if it works as expected

  1439.         if not newPath:

  1440.             return

  1441. 

  1442.         self.scene.clearSelection()

  1443. 

  1444.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1445.             imgFormat = "JPG"

  1446.         elif newPath.lower().endswith((".png",)):

  1447.             imgFormat = "PNG"

  1448.         else:

  1449.             # File-dialog may not auto-add the extension

  1450.             imgFormat = "PNG"

  1451.             newPath  += ".png"

  1452. 

  1453.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1454.         painter = QPainter(self.fExportImage)

  1455.         painter.save()

  1456.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1457.         painter.setRenderHint(QPainter.TextAntialiasing)

  1458.         self.scene.render(painter)

  1459.         self.fExportImage.save(newPath, imgFormat, 100)

  1460.         painter.restore()

  1461. 

  1462.     # --------------------------------------------------------------------------------------------------------

  1463.     # Canvas (canvas callbacks)

  1464. 

  1465.     @pyqtSlot(int, int, QPointF)

  1466.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1467.         self.updateMiniCanvasLater()

  1468. 

  1469.     @pyqtSlot()

  1470.     def slot_canvasSelectionChanged(self):

  1471.         self.updateMiniCanvasLater()

  1472. 

  1473.     @pyqtSlot(float)

  1474.     def slot_canvasScaleChanged(self, scale):

  1475.         self.ui.miniCanvasPreview.setViewScale(scale)

  1476. 

  1477.     @pyqtSlot(list)

  1478.     def slot_canvasPluginSelected(self, pluginList):

  1479.         self.ui.keyboard.allNotesOff(False)

  1480.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1481.         self.fSelectedPlugins = pluginList

  1482. 

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

  1484.     # Canvas (host callbacks)

  1485. 

  1486.     @pyqtSlot(int, int, int, str)

  1487.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1488.         pcSplit = patchcanvas.SPLIT_UNDEF

  1489.         pcIcon  = patchcanvas.ICON_APPLICATION

  1490. 

  1491.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1492.             pcIcon = patchcanvas.ICON_PLUGIN

  1493.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1494.             pcIcon = patchcanvas.ICON_HARDWARE

  1495.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1496.             pass

  1497.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1498.             pcIcon = patchcanvas.ICON_DISTRHO

  1499.         elif clientIcon == PATCHBAY_ICON_FILE:

  1500.             pcIcon = patchcanvas.ICON_FILE

  1501. 

  1502.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1503. 

  1504.         self.updateMiniCanvasLater()

  1505. 

  1506.         if pluginId < 0:

  1507.             return

  1508.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1509.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1510.             return

  1511. 

  1512.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1513.             hasCustomUI = False

  1514.         else:

  1515.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1516. 

  1517.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1518. 

  1519.     @pyqtSlot(int)

  1520.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1521.         patchcanvas.removeGroup(clientId)

  1522.         self.updateMiniCanvasLater()

  1523. 

  1524.     @pyqtSlot(int, str)

  1525.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1526.         patchcanvas.renameGroup(clientId, newClientName)

  1527.         self.updateMiniCanvasLater()

  1528. 

  1529.     @pyqtSlot(int, int, int)

  1530.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1531.         pcIcon = patchcanvas.ICON_APPLICATION

  1532. 

  1533.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1534.             pcIcon = patchcanvas.ICON_PLUGIN

  1535.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1536.             pcIcon = patchcanvas.ICON_HARDWARE

  1537.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1538.             pass

  1539.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1540.             pcIcon = patchcanvas.ICON_DISTRHO

  1541.         elif clientIcon == PATCHBAY_ICON_FILE:

  1542.             pcIcon = patchcanvas.ICON_FILE

  1543. 

  1544.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1545.         self.updateMiniCanvasLater()

  1546. 

  1547.         if pluginId < 0:

  1548.             return

  1549.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1550.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1551.             return

  1552. 

  1553.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1554.             hasCustomUI = False

  1555.         else:

  1556.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1557. 

  1558.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1559. 

  1560.     @pyqtSlot(int, int, int, str)

  1561.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1562.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1563.             portMode = patchcanvas.PORT_MODE_INPUT

  1564.         else:

  1565.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1566. 

  1567.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1568.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1569.             isAlternate = False

  1570.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1571.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1572.             isAlternate = True

  1573.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1574.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1575.             isAlternate = False

  1576.         else:

  1577.             portType    = patchcanvas.PORT_TYPE_NULL

  1578.             isAlternate = False

  1579. 

  1580.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1581.         self.updateMiniCanvasLater()

  1582. 

  1583.     @pyqtSlot(int, int)

  1584.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1585.         patchcanvas.removePort(groupId, portId)

  1586.         self.updateMiniCanvasLater()

  1587. 

  1588.     @pyqtSlot(int, int, str)

  1589.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1590.         patchcanvas.renamePort(groupId, portId, newPortName)

  1591.         self.updateMiniCanvasLater()

  1592. 

  1593.     @pyqtSlot(int, int, int, int, int)

  1594.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1595.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1596.         self.updateMiniCanvasLater()

  1597. 

  1598.     @pyqtSlot(int, int, int)

  1599.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1600.         patchcanvas.disconnectPorts(connectionId)

  1601.         self.updateMiniCanvasLater()

  1602. 

  1603.     # --------------------------------------------------------------------------------------------------------

  1604.     # Settings

  1605. 

  1606.     def saveSettings(self):

  1607.         settings = QSettings()

  1608. 

  1609.         settings.setValue("Geometry", self.saveGeometry())

  1610.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1611.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1612. 

  1613.         diskFolders = []

  1614. 

  1615.         for i in range(self.ui.cb_disk.count()):

  1616.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1617. 

  1618.         settings.setValue("DiskFolders", diskFolders)

  1619.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1620. 

  1621.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1622.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1623.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1624.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1625. 

  1626.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1627.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1628. 

  1629.         return settings

  1630. 

  1631.     def loadSettings(self, firstTime):

  1632.         settings = QSettings()

  1633. 

  1634.         if firstTime:

  1635.             self.restoreGeometry(settings.value("Geometry", b""))

  1636. 

  1637.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1638.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1639.             self.ui.toolBar.setEnabled(showToolbar)

  1640.             self.ui.toolBar.setVisible(showToolbar)

  1641. 

  1642.             #if settings.contains("SplitterState"):

  1643.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1644.             #else:

  1645.                 #self.ui.splitter.setSizes([210, 99999])

  1646. 

  1647.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1648.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1649.             self.slot_showSidePanel(showSidePanel)

  1650. 

  1651.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1652. 

  1653.             self.ui.cb_disk.setItemData(0, HOME)

  1654. 

  1655.             for i in range(len(diskFolders)):

  1656.                 if i == 0: continue

  1657.                 folder = diskFolders[i]

  1658.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1659. 

  1660.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1661.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1662. 

  1663.             showMeters = settings.value("ShowMeters", True, type=bool)

  1664.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1665.             self.ui.peak_in.setVisible(showMeters)

  1666.             self.ui.peak_out.setVisible(showMeters)

  1667. 

  1668.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1669.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1670.             self.ui.scrollArea.setVisible(showKeyboard)

  1671. 

  1672.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1673. 

  1674.         # TODO - complete this

  1675. 

  1676.         self.fSavedSettings = {

  1677.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1678.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1679.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1680.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1681.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1682.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1683.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1684.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1685.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1686.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1687.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1688.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1689.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1690.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1691.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1692.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1693.         }

  1694. 

  1695.         settings2 = QSettings("falkTX", "Carla2")

  1696. 

  1697.         if self.host.experimental and not self.host.isControl:

  1698.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool)

  1699.             self.ui.act_add_jack.setVisible(visible)

  1700.             self.ui.act_plugin_add_jack.setVisible(visible)

  1701.         else:

  1702.             self.ui.act_add_jack.setVisible(False)

  1703.             self.ui.act_plugin_add_jack.setVisible(False)

  1704. 

  1705.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1706. 

  1707.         setEngineSettings(self.host)

  1708.         self.restartTimersIfNeeded()

  1709. 

  1710.         return settings

  1711. 

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

  1713.     # Settings (helpers)

  1714. 

  1715.     def enableTransport(self, enabled):

  1716.         self.ui.group_transport_controls.setEnabled(enabled)

  1717.         self.ui.group_transport_settings.setEnabled(enabled)

  1718. 

  1719.     @pyqtSlot()

  1720.     def slot_restoreCanvasScrollbarValues(self):

  1721.         settings = QSettings()

  1722.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1723.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1724. 

  1725.     # --------------------------------------------------------------------------------------------------------

  1726.     # Settings (menu actions)

  1727. 

  1728.     @pyqtSlot(bool)

  1729.     def slot_showSidePanel(self, yesNo):

  1730.         self.ui.dockWidget.setEnabled(yesNo)

  1731.         self.ui.dockWidget.setVisible(yesNo)

  1732. 

  1733.     @pyqtSlot(bool)

  1734.     def slot_showToolbar(self, yesNo):

  1735.         self.ui.toolBar.setEnabled(yesNo)

  1736.         self.ui.toolBar.setVisible(yesNo)

  1737. 

  1738.     @pyqtSlot(bool)

  1739.     def slot_showCanvasMeters(self, yesNo):

  1740.         self.ui.peak_in.setVisible(yesNo)

  1741.         self.ui.peak_out.setVisible(yesNo)

  1742.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1743. 

  1744.     @pyqtSlot(bool)

  1745.     def slot_showCanvasKeyboard(self, yesNo):

  1746.         self.ui.scrollArea.setVisible(yesNo)

  1747.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1748. 

  1749.     @pyqtSlot()

  1750.     def slot_configureCarla(self):

  1751.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1752.         if not dialog.exec_():

  1753.             return

  1754. 

  1755.         self.loadSettings(False)

  1756. 

  1757.         patchcanvas.clear()

  1758. 

  1759.         self.setupCanvas()

  1760.         self.slot_miniCanvasCheckAll()

  1761. 

  1762.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1763.             pass

  1764.         elif self.host.is_engine_running():

  1765.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1766. 

  1767.     # --------------------------------------------------------------------------------------------------------

  1768.     # About (menu actions)

  1769. 

  1770.     @pyqtSlot()

  1771.     def slot_aboutCarla(self):

  1772.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1773. 

  1774.     @pyqtSlot()

  1775.     def slot_aboutJuce(self):

  1776.         JuceAboutW(self.fParentOrSelf).exec_()

  1777. 

  1778.     @pyqtSlot()

  1779.     def slot_aboutQt(self):

  1780.         QApplication.instance().aboutQt()

  1781. 

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

  1783.     # Disk (menu actions)

  1784. 

  1785.     @pyqtSlot(int)

  1786.     def slot_diskFolderChanged(self, index):

  1787.         if index < 0:

  1788.             return

  1789.         elif index == 0:

  1790.             filename = HOME

  1791.             self.ui.b_disk_remove.setEnabled(False)

  1792.         else:

  1793.             filename = self.ui.cb_disk.itemData(index)

  1794.             self.ui.b_disk_remove.setEnabled(True)

  1795. 

  1796.         self.fDirModel.setRootPath(filename)

  1797.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1798. 

  1799.     @pyqtSlot()

  1800.     def slot_diskFolderAdd(self):

  1801.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1802. 

  1803.         if newPath:

  1804.             if newPath[-1] == os.sep:

  1805.                 newPath = newPath[:-1]

  1806.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1807.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1808.             self.ui.b_disk_remove.setEnabled(True)

  1809. 

  1810.     @pyqtSlot()

  1811.     def slot_diskFolderRemove(self):

  1812.         index = self.ui.cb_disk.currentIndex()

  1813. 

  1814.         if index <= 0:

  1815.             return

  1816. 

  1817.         self.ui.cb_disk.removeItem(index)

  1818. 

  1819.         if self.ui.cb_disk.currentIndex() == 0:

  1820.             self.ui.b_disk_remove.setEnabled(False)

  1821. 

  1822.     @pyqtSlot(QModelIndex)

  1823.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1824.         filename = self.fDirModel.filePath(modelIndex)

  1825. 

  1826.         if not self.ui.listWidget.isDragUrlValid(filename):

  1827.             return

  1828. 

  1829.         if not self.host.load_file(filename):

  1830.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1831.                              self.tr("Failed to load file"),

  1832.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1833. 

  1834.     # --------------------------------------------------------------------------------------------------------

  1835.     # Transport

  1836. 

  1837.     def refreshTransport(self, forced = False):

  1838.         if not self.isVisible():

  1839.             return

  1840.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1841.             return

  1842. 

  1843.         timeInfo = self.host.get_transport_info()

  1844.         playing  = timeInfo['playing']

  1845.         frame    = timeInfo['frame']

  1846.         bpm      = timeInfo['bpm']

  1847. 

  1848.         if playing != self.fLastTransportState or forced:

  1849.             if playing:

  1850.                 icon = getIcon("media-playback-pause")

  1851.                 self.ui.b_transport_play.setChecked(True)

  1852.                 self.ui.b_transport_play.setIcon(icon)

  1853.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1854.             else:

  1855.                 icon = getIcon("media-playback-start")

  1856.                 self.ui.b_transport_play.setChecked(False)

  1857.                 self.ui.b_transport_play.setIcon(icon)

  1858.                 #self.ui.b_play.setText(self.tr("&Play"))

  1859. 

  1860.             self.fLastTransportState = playing

  1861. 

  1862.         if frame != self.fLastTransportFrame or forced:

  1863.             self.fLastTransportFrame = frame

  1864. 

  1865.             time = frame / self.fSampleRate

  1866.             secs =  time % 60

  1867.             mins = (time / 60) % 60

  1868.             hrs  = (time / 3600) % 60

  1869.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1870. 

  1871.             frame1 =  frame % 1000

  1872.             frame2 = (frame / 1000) % 1000

  1873.             frame3 = (frame / 1000000) % 1000

  1874.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1875. 

  1876.             bar  = timeInfo['bar']

  1877.             beat = timeInfo['beat']

  1878.             tick = timeInfo['tick']

  1879.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1880. 

  1881.         if bpm != self.fLastTransportBPM or forced:

  1882.             self.fLastTransportBPM = bpm

  1883. 

  1884.             if bpm > 0.0:

  1885.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1886.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1887.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1888.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1889.             else:

  1890.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1891. 

  1892.     # --------------------------------------------------------------------------------------------------------

  1893.     # Transport (menu actions)

  1894. 

  1895.     @pyqtSlot(bool)

  1896.     def slot_transportPlayPause(self, toggled):

  1897.         if self.host.isPlugin or not self.host.is_engine_running():

  1898.             return

  1899. 

  1900.         if toggled:

  1901.             self.host.transport_play()

  1902.         else:

  1903.             self.host.transport_pause()

  1904. 

  1905.         self.refreshTransport()

  1906. 

  1907.     @pyqtSlot()

  1908.     def slot_transportStop(self):

  1909.         if self.host.isPlugin or not self.host.is_engine_running():

  1910.             return

  1911. 

  1912.         self.host.transport_pause()

  1913.         self.host.transport_relocate(0)

  1914. 

  1915.         self.refreshTransport()

  1916. 

  1917.     @pyqtSlot()

  1918.     def slot_transportBackwards(self):

  1919.         if self.host.isPlugin or not self.host.is_engine_running():

  1920.             return

  1921. 

  1922.         newFrame = self.host.get_current_transport_frame() - 100000

  1923. 

  1924.         if newFrame < 0:

  1925.             newFrame = 0

  1926. 

  1927.         self.host.transport_relocate(newFrame)

  1928. 

  1929.     @pyqtSlot(float)

  1930.     def slot_transportBpmChanged(self, newValue):

  1931.         self.host.transport_bpm(newValue)

  1932. 

  1933.     @pyqtSlot()

  1934.     def slot_transportForwards(self):

  1935.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1936.             return

  1937. 

  1938.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1939.         self.host.transport_relocate(newFrame)

  1940. 

  1941.     @pyqtSlot(bool)

  1942.     def slot_transportJackEnabled(self, clicked):

  1943.         if not self.host.is_engine_running():

  1944.             return

  1945.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1946.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1947.                                     self.host.transportMode,

  1948.                                     self.host.transportExtra)

  1949. 

  1950.     @pyqtSlot(bool)

  1951.     def slot_transportLinkEnabled(self, clicked):

  1952.         if not self.host.is_engine_running():

  1953.             return

  1954.         extra = ":link:" if clicked else ""

  1955.         self.host.transportExtra = extra

  1956.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  1957.                                     self.host.transportMode,

  1958.                                     self.host.transportExtra)

  1959. 

  1960.     # --------------------------------------------------------------------------------------------------------

  1961.     # Other

  1962. 

  1963.     @pyqtSlot(bool)

  1964.     def slot_xrunClear(self):

  1965.         self.host.clear_engine_xruns()

  1966. 

  1967.     # --------------------------------------------------------------------------------------------------------

  1968.     # Canvas scrollbars

  1969. 

  1970.     @pyqtSlot(int)

  1971.     def slot_horizontalScrollBarChanged(self, value):

  1972.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1973.         if maximum == 0:

  1974.             xp = 0

  1975.         else:

  1976.             xp = float(value) / maximum

  1977.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1978.         self.updateCanvasInitialPos()

  1979. 

  1980.     @pyqtSlot(int)

  1981.     def slot_verticalScrollBarChanged(self, value):

  1982.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1983.         if maximum == 0:

  1984.             yp = 0

  1985.         else:

  1986.             yp = float(value) / maximum

  1987.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1988.         self.updateCanvasInitialPos()

  1989. 

  1990.     # --------------------------------------------------------------------------------------------------------

  1991.     # Canvas keyboard

  1992. 

  1993.     @pyqtSlot(int)

  1994.     def slot_noteOn(self, note):

  1995.         for pluginId in self.fSelectedPlugins:

  1996.             self.host.send_midi_note(pluginId, 0, note, 100)

  1997. 

  1998.             pedit = self.getPluginEditDialog(pluginId)

  1999.             pedit.noteOn(0, note, 100)

  2000. 

  2001.     @pyqtSlot(int)

  2002.     def slot_noteOff(self, note):

  2003.         for pluginId in self.fSelectedPlugins:

  2004.             self.host.send_midi_note(pluginId, 0, note, 0)

  2005. 

  2006.             pedit = self.getPluginEditDialog(pluginId)

  2007.             pedit.noteOff(0, note)

  2008. 

  2009.     # --------------------------------------------------------------------------------------------------------

  2010.     # Canvas keyboard (host callbacks)

  2011. 

  2012.     @pyqtSlot(int, int, int, int)

  2013.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2014.         if pluginId in self.fSelectedPlugins:

  2015.             self.ui.keyboard.sendNoteOn(note, False)

  2016. 

  2017.     @pyqtSlot(int, int, int)

  2018.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2019.         if pluginId in self.fSelectedPlugins:

  2020.             self.ui.keyboard.sendNoteOff(note, False)

  2021. 

  2022.     # --------------------------------------------------------------------------------------------------------

  2023. 

  2024.     @pyqtSlot(int)

  2025.     def slot_handleUpdateCallback(self, pluginId):

  2026.         pitem = self.getPluginItem(pluginId)

  2027. 

  2028.         if pitem is None:

  2029.             return

  2030. 

  2031.         wasCompacted = pitem.isCompacted()

  2032.         isCompacted  = wasCompacted

  2033. 

  2034.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2035.         if not check:

  2036.             return

  2037.         isCompacted = bool(check == "true")

  2038. 

  2039.         if wasCompacted == isCompacted:

  2040.             return

  2041. 

  2042.         pitem.recreateWidget(True)

  2043. 

  2044.     # --------------------------------------------------------------------------------------------------------

  2045.     # MiniCanvas stuff

  2046. 

  2047.     @pyqtSlot()

  2048.     def slot_miniCanvasCheckAll(self):

  2049.         self.slot_miniCanvasCheckSize()

  2050.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2051.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2052. 

  2053.     @pyqtSlot()

  2054.     def slot_miniCanvasCheckSize(self):

  2055.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2056.             return

  2057. 

  2058.         currentIndex = self.ui.tabWidget.currentIndex()

  2059. 

  2060.         if currentIndex == 1:

  2061.             width  = self.ui.graphicsView.width()

  2062.             height = self.ui.graphicsView.height()

  2063.         else:

  2064.             self.ui.tabWidget.blockSignals(True)

  2065.             self.ui.tabWidget.setCurrentIndex(1)

  2066.             width  = self.ui.graphicsView.width()

  2067.             height = self.ui.graphicsView.height()

  2068.             self.ui.tabWidget.setCurrentIndex(currentIndex)

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

  2070. 

  2071.         self.scene.updateLimits()

  2072. 

  2073.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2074. 

  2075.     @pyqtSlot(float, float)

  2076.     def slot_miniCanvasMoved(self, xp, yp):

  2077.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2078.         vsb = self.ui.graphicsView.verticalScrollBar()

  2079.         hsb.setValue(xp * hsb.maximum())

  2080.         vsb.setValue(yp * vsb.maximum())

  2081.         self.updateCanvasInitialPos()

  2082. 

  2083.     # --------------------------------------------------------------------------------------------------------

  2084.     # Timers

  2085. 

  2086.     def startTimers(self):

  2087.         if self.fIdleTimerFast == 0:

  2088.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2089. 

  2090.         if self.fIdleTimerSlow == 0:

  2091.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2092. 

  2093.     def restartTimersIfNeeded(self):

  2094.         if self.fIdleTimerFast != 0:

  2095.             self.killTimer(self.fIdleTimerFast)

  2096.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2097. 

  2098.         if self.fIdleTimerSlow != 0:

  2099.             self.killTimer(self.fIdleTimerSlow)

  2100.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2101. 

  2102.     def killTimers(self):

  2103.         if self.fIdleTimerFast != 0:

  2104.             self.killTimer(self.fIdleTimerFast)

  2105.             self.fIdleTimerFast = 0

  2106. 

  2107.         if self.fIdleTimerSlow != 0:

  2108.             self.killTimer(self.fIdleTimerSlow)

  2109.             self.fIdleTimerSlow = 0

  2110. 

  2111.     # --------------------------------------------------------------------------------------------------------

  2112.     # Misc

  2113. 

  2114.     @pyqtSlot(int)

  2115.     def slot_tabChanged(self, index):

  2116.         if index != 1:

  2117.             return

  2118. 

  2119.         self.ui.graphicsView.setFocus()

  2120. 

  2121.     @pyqtSlot(int)

  2122.     def slot_handleReloadAllCallback(self, pluginId):

  2123.         if pluginId >= self.fPluginCount:

  2124.             return

  2125. 

  2126.         pitem = self.fPluginList[pluginId]

  2127.         if pitem is None:

  2128.             return

  2129. 

  2130.         pitem.recreateWidget()

  2131. 

  2132.     # --------------------------------------------------------------------------------------------------------

  2133. 

  2134.     @pyqtSlot(int, int, str)

  2135.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2136.         if opcode == NSM_CALLBACK_INIT:

  2137.             return

  2138. 

  2139.         # Error

  2140.         elif opcode == NSM_CALLBACK_ERROR:

  2141.             pass

  2142. 

  2143.         # Reply

  2144.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2145.             self.fFirstEngineInit    = False

  2146.             self.fSessionManagerName = valueStr

  2147.             self.setProperWindowTitle()

  2148. 

  2149.         # Open

  2150.         elif opcode == NSM_CALLBACK_OPEN:

  2151.             self.fClientName      = os.path.basename(valueStr)

  2152.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2153.             self.setProperWindowTitle()

  2154. 

  2155.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2156.             self.slot_engineStop(True)

  2157.             return

  2158. 

  2159.         # Save

  2160.         elif opcode == NSM_CALLBACK_SAVE:

  2161.             self.saveProjectNow()

  2162. 

  2163.         # Session is Loaded

  2164.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2165.             pass

  2166. 

  2167.         # Show Optional Gui

  2168.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2169.             self.show()

  2170. 

  2171.         # Hide Optional Gui

  2172.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2173.             self.hide()

  2174. 

  2175.         self.host.nsm_ready(opcode)

  2176. 

  2177.     # --------------------------------------------------------------------------------------------------------

  2178. 

  2179.     def fixLogText(self, text):

  2180.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2181. 

  2182.     @pyqtSlot(int, int, int, int, float, str)

  2183.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2184.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2185. 

  2186.     @pyqtSlot(str)

  2187.     def slot_handleInfoCallback(self, info):

  2188.         QMessageBox.information(self, "Information", info)

  2189. 

  2190.     @pyqtSlot(str)

  2191.     def slot_handleErrorCallback(self, error):

  2192.         QMessageBox.critical(self, "Error", error)

  2193. 

  2194.     @pyqtSlot()

  2195.     def slot_handleQuitCallback(self):

  2196.         self.fIsProjectLoading = False

  2197.         self.killTimers()

  2198.         self.removeAllPlugins()

  2199.         self.projectLoadingFinished()

  2200. 

  2201.     # --------------------------------------------------------------------------------------------------------

  2202. 

  2203.     @pyqtSlot()

  2204.     def slot_handleSIGUSR1(self):

  2205.         print("Got SIGUSR1 -> Saving project now")

  2206.         self.slot_fileSave()

  2207. 

  2208.     @pyqtSlot()

  2209.     def slot_handleSIGTERM(self):

  2210.         print("Got SIGTERM -> Closing now")

  2211.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2212.         self.slot_engineStop(True)

  2213. 

  2214.     # --------------------------------------------------------------------------------------------------------

  2215.     # Internal stuff

  2216. 

  2217.     def getExtraPtr(self, plugin):

  2218.         ptype = plugin['type']

  2219. 

  2220.         if ptype == PLUGIN_LADSPA:

  2221.             uniqueId = plugin['uniqueId']

  2222. 

  2223.             self.maybeLoadRDFs()

  2224. 

  2225.             for rdfItem in self.fLadspaRdfList:

  2226.                 if rdfItem.UniqueID == uniqueId:

  2227.                     return pointer(rdfItem)

  2228. 

  2229.         elif ptype == PLUGIN_SF2:

  2230.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2231.                 return self._true

  2232. 

  2233.         return None

  2234. 

  2235.     def maybeLoadRDFs(self):

  2236.         if not self.fLadspaRdfNeedsUpdate:

  2237.             return

  2238. 

  2239.         self.fLadspaRdfNeedsUpdate = False

  2240.         self.fLadspaRdfList = []

  2241. 

  2242.         if not haveLRDF:

  2243.             return

  2244. 

  2245.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2246.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2247. 

  2248.         if os.path.exists(frLadspaFile):

  2249.             frLadspa = open(frLadspaFile, 'r')

  2250. 

  2251.             try:

  2252.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2253.             except:

  2254.                 pass

  2255. 

  2256.             frLadspa.close()

  2257. 

  2258.     # --------------------------------------------------------------------------------------------------------

  2259. 

  2260.     def getPluginCount(self):

  2261.         return self.fPluginCount

  2262. 

  2263.     def getPluginItem(self, pluginId):

  2264.         if pluginId >= self.fPluginCount:

  2265.             return None

  2266. 

  2267.         pitem = self.fPluginList[pluginId]

  2268.         if pitem is None:

  2269.             return None

  2270.         #if False:

  2271.             #return CarlaRackItem(self, 0, False)

  2272. 

  2273.         return pitem

  2274. 

  2275.     def getPluginEditDialog(self, pluginId):

  2276.         if pluginId >= self.fPluginCount:

  2277.             return None

  2278. 

  2279.         pitem = self.fPluginList[pluginId]

  2280.         if pitem is None:

  2281.             return None

  2282.         if False:

  2283.             return PluginEdit(self, self.host, 0)

  2284. 

  2285.         return pitem.getEditDialog()

  2286. 

  2287.     def getPluginSlotWidget(self, pluginId):

  2288.         if pluginId >= self.fPluginCount:

  2289.             return None

  2290. 

  2291.         pitem = self.fPluginList[pluginId]

  2292.         if pitem is None:

  2293.             return None

  2294.         #if False:

  2295.             #return AbstractPluginSlot()

  2296. 

  2297.         return pitem.getWidget()

  2298. 

  2299.     # --------------------------------------------------------------------------------------------------------

  2300. 

  2301.     def waitForPendingEvents(self):

  2302.         pass

  2303. 

  2304.     # --------------------------------------------------------------------------------------------------------

  2305.     # show/hide event

  2306. 

  2307.     def showEvent(self, event):

  2308.         self.getAndRefreshRuntimeInfo()

  2309.         self.refreshTransport(True)

  2310.         QMainWindow.showEvent(self, event)

  2311. 

  2312.         # set our gui as parent for all plugins UIs

  2313.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2314.             if MACOS:

  2315.                 nsViewPtr = int(self.winId())

  2316.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2317.             else:

  2318.                 winIdStr = "%x" % int(self.winId())

  2319.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2320. 

  2321.     def hideEvent(self, event):

  2322.         # disable parent

  2323.         if not (self.host.isControl or self.host.isPlugin):

  2324.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2325. 

  2326.         QMainWindow.hideEvent(self, event)

  2327. 

  2328.     # --------------------------------------------------------------------------------------------------------

  2329.     # resize event

  2330. 

  2331.     def resizeEvent(self, event):

  2332.         QMainWindow.resizeEvent(self, event)

  2333. 

  2334.         if self.fWithCanvas:

  2335.             self.slot_miniCanvasCheckSize()

  2336. 

  2337.     # --------------------------------------------------------------------------------------------------------

  2338.     # timer event

  2339. 

  2340.     def refreshRuntimeInfo(self, load, xruns):

  2341.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2342.         txt2 = "" if (xruns == 1) else "s"

  2343.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2344.         self.ui.pb_dsp_load.setValue(int(load))

  2345. 

  2346.     def getAndRefreshRuntimeInfo(self):

  2347.         if not self.isVisible():

  2348.             return

  2349.         if not self.host.is_engine_running():

  2350.             return

  2351.         info = self.host.get_runtime_engine_info()

  2352.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2353. 

  2354.     def idleFast(self):

  2355.         self.host.engine_idle()

  2356.         self.refreshTransport()

  2357. 

  2358.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2359.             return

  2360. 

  2361.         for pitem in self.fPluginList:

  2362.             if pitem is None:

  2363.                 break

  2364. 

  2365.             pitem.getWidget().idleFast()

  2366. 

  2367.         for pluginId in self.fSelectedPlugins:

  2368.             self.fPeaksCleared = False

  2369.             if self.ui.peak_in.isVisible():

  2370.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2371.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2372.             if self.ui.peak_out.isVisible():

  2373.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2374.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2375.             return

  2376. 

  2377.         if self.fPeaksCleared:

  2378.             return

  2379. 

  2380.         self.fPeaksCleared = True

  2381.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2382.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2383.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2384.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2385. 

  2386.     def idleSlow(self):

  2387.         self.getAndRefreshRuntimeInfo()

  2388. 

  2389.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2390.             return

  2391. 

  2392.         for pitem in self.fPluginList:

  2393.             if pitem is None:

  2394.                 break

  2395. 

  2396.             pitem.getWidget().idleSlow()

  2397. 

  2398.     def timerEvent(self, event):

  2399.         if event.timerId() == self.fIdleTimerFast:

  2400.             self.idleFast()

  2401. 

  2402.         elif event.timerId() == self.fIdleTimerSlow:

  2403.             self.idleSlow()

  2404. 

  2405.         QMainWindow.timerEvent(self, event)

  2406. 

  2407.     # --------------------------------------------------------------------------------------------------------

  2408.     # color/style change event

  2409. 

  2410.     def changeEvent(self, event):

  2411.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2412.             self.updateStyle()

  2413.         QWidget.changeEvent(self, event)

  2414. 

  2415.     def updateStyle(self):

  2416.         # Rack padding images setup

  2417.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2418.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2419. 

  2420.         min_value = 0.07

  2421. 

  2422.         if PYQT_VERSION >= 0x50600:

  2423.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2424.         else:

  2425.             value_fix = 1.5

  2426. 

  2427.         bg_color = self.ui.rack.palette().window().color()

  2428.         bg_value = 1.0 - bg_color.blackF()

  2429.         if bg_value != 0.0 and bg_value < min_value:

  2430.             pad_color = bg_color.lighter(100*min_value/bg_value*value_fix)

  2431.         else:

  2432.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2433. 

  2434.         painter = QPainter()

  2435.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2436. 

  2437.         painter.begin(rack_imgL)

  2438.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2439.         painter.setBrush(pad_color)

  2440.         painter.drawRect(fillRect)

  2441.         painter.end()

  2442.         rack_pixmapL = QPixmap(rack_imgL)

  2443.         self.imgL_palette = QPalette()

  2444.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2445.         self.ui.pad_left.setPalette(self.imgL_palette)

  2446.         self.ui.pad_left.setAutoFillBackground(True)

  2447. 

  2448.         painter.begin(rack_imgR)

  2449.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2450.         painter.setBrush(pad_color)

  2451.         painter.drawRect(fillRect)

  2452.         painter.end()

  2453.         rack_pixmapR = QPixmap(rack_imgR)

  2454.         self.imgR_palette = QPalette()

  2455.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2456.         self.ui.pad_right.setPalette(self.imgR_palette)

  2457.         self.ui.pad_right.setAutoFillBackground(True)

  2458. 

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

  2460.     # paint event

  2461. 

  2462.     #def paintEvent(self, event):

  2463.         #QMainWindow.paintEvent(self, event)

  2464. 

  2465.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2466.             #return

  2467. 

  2468.         #painter = QPainter(self)

  2469.         #painter.setBrush(QColor(36, 36, 36))

  2470.         #painter.setPen(QColor(62, 62, 62))

  2471.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2472. 

  2473.     # --------------------------------------------------------------------------------------------------------

  2474.     # close event

  2475. 

  2476.     def shouldIgnoreClose(self):

  2477.         if self.host.isControl or self.host.isPlugin:

  2478.             return False

  2479.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2480.             return False

  2481.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2482.             return QMessageBox.question(self, self.tr("Quit"),

  2483.                                               self.tr("Are you sure you want to quit Carla?"),

  2484.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2485.         return False

  2486. 

  2487.     def closeEvent(self, event):

  2488.         if self.shouldIgnoreClose():

  2489.             event.ignore()

  2490.             return

  2491. 

  2492.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2493.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2494.             self.fMacClosingHelper = False

  2495.             event.ignore()

  2496. 

  2497.             for i in reversed(range(self.fPluginCount)):

  2498.                 self.host.show_custom_ui(i, False)

  2499. 

  2500.             QTimer.singleShot(100, self.close)

  2501.             return

  2502. 

  2503.         self.killTimers()

  2504.         self.saveSettings()

  2505. 

  2506.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2507.             if not self.slot_engineStop(True):

  2508.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2509.                 event.ignore()

  2510.                 return

  2511. 

  2512.         QMainWindow.closeEvent(self, event)

  2513. 

  2514. # ------------------------------------------------------------------------------------------------

  2515. # Canvas callback

  2516. 

  2517. def canvasCallback(action, value1, value2, valueStr):

  2518.     host = gCarla.gui.host

  2519. 

  2520.     if action == patchcanvas.ACTION_GROUP_INFO:

  2521.         pass

  2522. 

  2523.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2524.         pass

  2525. 

  2526.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2527.         groupId = value1

  2528.         patchcanvas.splitGroup(groupId)

  2529.         gCarla.gui.updateMiniCanvasLater()

  2530. 

  2531.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2532.         groupId = value1

  2533.         patchcanvas.joinGroup(groupId)

  2534.         gCarla.gui.updateMiniCanvasLater()

  2535. 

  2536.     elif action == patchcanvas.ACTION_PORT_INFO:

  2537.         pass

  2538. 

  2539.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2540.         pass

  2541. 

  2542.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2543.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2544. 

  2545.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2546.             print("Connection failed:", host.get_last_error())

  2547. 

  2548.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2549.         connectionId = value1

  2550. 

  2551.         if not host.patchbay_disconnect(connectionId):

  2552.             print("Disconnect failed:", host.get_last_error())

  2553. 

  2554.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2555.         pluginId = value1

  2556. 

  2557.         if not host.clone_plugin(pluginId):

  2558.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2559.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2560. 

  2561.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2562.         pluginId = value1

  2563.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2564. 

  2565.         if pwidget is not None:

  2566.             pwidget.showEditDialog()

  2567. 

  2568.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2569.         pluginId = value1

  2570.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2571. 

  2572.         if pwidget is not None:

  2573.             pwidget.showRenameDialog()

  2574. 

  2575.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2576.         pluginId = value1

  2577.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2578. 

  2579.         if pwidget is not None:

  2580.             pwidget.showReplaceDialog()

  2581. 

  2582.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2583.         pluginId = value1

  2584. 

  2585.         if not host.remove_plugin(pluginId):

  2586.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2587.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2588. 

  2589.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2590.         pluginId = value1

  2591.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2592. 

  2593.         if pwidget is not None:

  2594.             pwidget.showCustomUI()

  2595. 

  2596.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2597.         gCarla.gui.showPluginActionsMenu()

  2598. 

  2599. # ------------------------------------------------------------------------------------------------------------

  2600. # Engine callback

  2601. 

  2602. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  2603.     # kdevelop likes this :)

  2604.     if False: host = CarlaHostNull()

  2605. 

  2606.     valueStr = charPtrToString(valueStr)

  2607. 

  2608.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2609.         host.processMode   = value1

  2610.         host.transportMode = value2

  2611.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2612.         host.processMode   = value1

  2613.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2614.         host.transportMode  = value1

  2615.         host.transportExtra = valueStr

  2616. 

  2617.     if action == ENGINE_CALLBACK_DEBUG:

  2618.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  2619.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2620.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2621.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2622.         host.PluginRemovedCallback.emit(pluginId)

  2623.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2624.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2625.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2626.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2627.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2628.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  2629.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2630.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  2631.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2632.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2633.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2634.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2635.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2636.         host.ProgramChangedCallback.emit(pluginId, value1)

  2637.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2638.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2639.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2640.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2641.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2642.         host.UiStateChangedCallback.emit(pluginId, value1)

  2643.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2644.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  2645.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2646.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2647.     elif action == ENGINE_CALLBACK_UPDATE:

  2648.         host.UpdateCallback.emit(pluginId)

  2649.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2650.         host.ReloadInfoCallback.emit(pluginId)

  2651.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2652.         host.ReloadParametersCallback.emit(pluginId)

  2653.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2654.         host.ReloadProgramsCallback.emit(pluginId)

  2655.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2656.         host.ReloadAllCallback.emit(pluginId)

  2657.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2658.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2659.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2660.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2661.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2662.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2663.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2664.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2665.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2666.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2667.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2668.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2669.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2670.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2671.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2672.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2673.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2674.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2675.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2676.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2677.         host.EngineStartedCallback.emit(value1, value2, value3, valuef, valueStr)

  2678.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2679.         host.EngineStoppedCallback.emit()

  2680.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2681.         host.ProcessModeChangedCallback.emit(value1)

  2682.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2683.         host.TransportModeChangedCallback.emit(value1, valueStr)

  2684.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2685.         host.BufferSizeChangedCallback.emit(value1)

  2686.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2687.         host.SampleRateChangedCallback.emit(valuef)

  2688.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  2689.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  2690.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2691.         host.ProjectLoadFinishedCallback.emit()

  2692.     elif action == ENGINE_CALLBACK_NSM:

  2693.         host.NSMCallback.emit(value1, value2, valueStr)

  2694.     elif action == ENGINE_CALLBACK_IDLE:

  2695.         QApplication.processEvents()

  2696.     elif action == ENGINE_CALLBACK_INFO:

  2697.         host.InfoCallback.emit(valueStr)

  2698.     elif action == ENGINE_CALLBACK_ERROR:

  2699.         host.ErrorCallback.emit(valueStr)

  2700.     elif action == ENGINE_CALLBACK_QUIT:

  2701.         host.QuitCallback.emit()

  2702. 

  2703. # ------------------------------------------------------------------------------------------------------------

  2704. # File callback

  2705. 

  2706. def fileCallback(ptr, action, isDir, title, filter):

  2707.     title  = charPtrToString(title)

  2708.     filter = charPtrToString(filter)

  2709. 

  2710.     if action == FILE_CALLBACK_OPEN:

  2711.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2712.     elif action == FILE_CALLBACK_SAVE:

  2713.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2714.     else:

  2715.         ret, ok = ("", "")

  2716. 

  2717.     # FIXME use ok value, test if it works as expected

  2718.     if not ret:

  2719.         return None

  2720. 

  2721.     # FIXME

  2722.     global fileRet

  2723.     fileRet = c_char_p(ret.encode("utf-8"))

  2724.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2725.     return retval.contents.value

  2726. 

  2727. # ------------------------------------------------------------------------------------------------------------

  2728. # Init host

  2729. 

  2730. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2731.     pathBinaries, pathResources = getPaths(libPrefix)

  2732. 

  2733.     # --------------------------------------------------------------------------------------------------------

  2734.     # Check if we should open main lib as local or global

  2735. 

  2736.     settings = QSettings("falkTX", "Carla2")

  2737. 

  2738.     try:

  2739.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2740.     except:

  2741.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2742. 

  2743.     # --------------------------------------------------------------------------------------------------------

  2744.     # Fail if binary dir is not found

  2745. 

  2746.     if not os.path.exists(pathBinaries):

  2747.         if failError:

  2748.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2749.             sys.exit(1)

  2750.         return

  2751. 

  2752.     # --------------------------------------------------------------------------------------------------------

  2753.     # Set Carla library name

  2754. 

  2755.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2756.     libname   = os.path.join(pathBinaries, libname)

  2757.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2758. 

  2759.     # --------------------------------------------------------------------------------------------------------

  2760.     # Print info

  2761. 

  2762.     print("Carla %s started, status:" % VERSION)

  2763.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2764.     print("  Qt version:     %s" % qVersion())

  2765.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2766.     print("  Binary dir:     %s" % pathBinaries)

  2767.     print("  Resources dir:  %s" % pathResources)

  2768. 

  2769.     # --------------------------------------------------------------------------------------------------------

  2770.     # Init host

  2771. 

  2772.     if failError:

  2773.         # no try

  2774.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2775.     else:

  2776.         try:

  2777.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2778.         except:

  2779.             host = CarlaHostQtNull()

  2780. 

  2781.     host.isControl = isControl

  2782.     host.isPlugin  = isPlugin

  2783. 

  2784.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  2785.     host.set_file_callback(fileCallback)

  2786. 

  2787.     # If it's a plugin the paths are already set

  2788.     if not isPlugin:

  2789.         host.pathBinaries  = pathBinaries

  2790.         host.pathResources = pathResources

  2791.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2792.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2793. 

  2794.         if not isControl:

  2795.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2796. 

  2797.     # --------------------------------------------------------------------------------------------------------

  2798.     # Init utils

  2799. 

  2800.     gCarla.utils = CarlaUtils(utilsname)

  2801.     gCarla.utils.set_process_name(os.path.basename(initName))

  2802. 

  2803.     try:

  2804.         sys.stdout.flush()

  2805.     except:

  2806.         pass

  2807. 

  2808.     sys.stdout = CarlaPrint(False)

  2809.     sys.stderr = CarlaPrint(True)

  2810.     sys.excepthook = sys_excepthook

  2811. 

  2812.     # --------------------------------------------------------------------------------------------------------

  2813.     # Done

  2814. 

  2815.     return host

  2816. 

  2817. # ------------------------------------------------------------------------------------------------------------

  2818. # Load host settings

  2819. 

  2820. def loadHostSettings(host):

  2821.     # kdevelop likes this :)

  2822.     if False: host = CarlaHostNull()

  2823. 

  2824.     settings = QSettings("falkTX", "Carla2")

  2825. 

  2826.     try:

  2827.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2828.     except:

  2829.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2830. 

  2831.     try:

  2832.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2833.     except:

  2834.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2835. 

  2836.     try:

  2837.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2838.     except:

  2839.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2840. 

  2841.     try:

  2842.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2843.     except:

  2844.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2845. 

  2846.     try:

  2847.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2848.     except:

  2849.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2850. 

  2851.     try:

  2852.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2853.     except:

  2854.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2855. 

  2856.     try:

  2857.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2858.     except:

  2859.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2860. 

  2861.     try:

  2862.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2863.     except:

  2864.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2865. 

  2866.     try:

  2867.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2868.     except:

  2869.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2870. 

  2871.     try:

  2872.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2873.     except:

  2874.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2875. 

  2876.     try:

  2877.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2878.     except:

  2879.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2880. 

  2881.     try:

  2882.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2883.     except:

  2884.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2885. 

  2886.     try:

  2887.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2888.     except:

  2889.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2890. 

  2891.     if host.isPlugin:

  2892.         return

  2893. 

  2894.     try:

  2895.         host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", type=str)

  2896.     except:

  2897.         host.transportExtra = ""

  2898. 

  2899.     # enums

  2900.     if host.audioDriverForced is None:

  2901.         try:

  2902.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2903.         except:

  2904.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2905. 

  2906.     if not host.processModeForced:

  2907.         try:

  2908.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2909.         except:

  2910.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2911. 

  2912.     host.nextProcessMode = host.processMode

  2913. 

  2914.     # --------------------------------------------------------------------------------------------------------

  2915.     # fix things if needed

  2916. 

  2917.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  2918.         if LADISH_APP_NAME:

  2919.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2920.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2921. 

  2922.         else:

  2923.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  2924. 

  2925.     if gCarla.nogui:

  2926.         host.showLogs = False

  2927. 

  2928.     # --------------------------------------------------------------------------------------------------------

  2929.     # run headless host now if nogui option enabled

  2930. 

  2931.     if gCarla.nogui:

  2932.         runHostWithoutUI(host)

  2933. 

  2934. # ------------------------------------------------------------------------------------------------------------

  2935. # Set host settings

  2936. 

  2937. def setHostSettings(host):

  2938.     # kdevelop likes this :)

  2939.     if False: host = CarlaHostNull()

  2940. 

  2941.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2942.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2943.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2944.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2945.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2946.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2947.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2948. 

  2949.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2950.         return

  2951. 

  2952.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2953.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  2954.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2955. 

  2956. # ------------------------------------------------------------------------------------------------------------

  2957. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2958. 

  2959. def setEngineSettings(host):

  2960.     # kdevelop likes this :)

  2961.     if False: host = CarlaHostNull()

  2962. 

  2963.     # --------------------------------------------------------------------------------------------------------

  2964.     # do nothing if control

  2965. 

  2966.     if host.isControl:

  2967.         return "Control"

  2968. 

  2969.     # --------------------------------------------------------------------------------------------------------

  2970. 

  2971.     settings = QSettings("falkTX", "Carla2")

  2972. 

  2973.     # --------------------------------------------------------------------------------------------------------

  2974.     # main settings

  2975. 

  2976.     setHostSettings(host)

  2977. 

  2978.     # --------------------------------------------------------------------------------------------------------

  2979.     # plugin paths

  2980. 

  2981.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2982.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2983.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2984.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2985.     VST3_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH))

  2986.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2987.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2988. 

  2989.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2990.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2991.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2992.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2993.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  2994.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2995.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2996. 

  2997.     # --------------------------------------------------------------------------------------------------------

  2998.     # don't continue if plugin

  2999. 

  3000.     if host.isPlugin:

  3001.         return "Plugin"

  3002. 

  3003.     # --------------------------------------------------------------------------------------------------------

  3004.     # osc settings

  3005. 

  3006.     oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, type=bool)

  3007. 

  3008.     if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, type=bool):

  3009.         portNumTCP = -1

  3010.     elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, type=bool):

  3011.         portNumTCP = 0

  3012.     else:

  3013.         portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, type=int)

  3014. 

  3015.     if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, type=bool):

  3016.         portNumUDP = -1

  3017.     elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, type=bool):

  3018.         portNumUDP = 0

  3019.     else:

  3020.         portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, type=int)

  3021. 

  3022.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3023.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3024.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3025. 

  3026.     # --------------------------------------------------------------------------------------------------------

  3027.     # wine settings

  3028. 

  3029.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  3030.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  3031.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  3032.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  3033.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  3034.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  3035. 

  3036.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3037.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3038.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3039.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3040.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3041.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3042. 

  3043.     # --------------------------------------------------------------------------------------------------------

  3044.     # driver and device settings

  3045. 

  3046.     # driver name

  3047.     if host.audioDriverForced is not None:

  3048.         audioDriver = host.audioDriverForced

  3049.     else:

  3050.         try:

  3051.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  3052.         except:

  3053.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3054. 

  3055.     # driver options

  3056.     try:

  3057.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  3058.     except:

  3059.         audioDevice = ""

  3060. 

  3061.     try:

  3062.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  3063.     except:

  3064.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  3065. 

  3066.     try:

  3067.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  3068.     except:

  3069.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  3070. 

  3071.     try:

  3072.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  3073.     except:

  3074.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  3075. 

  3076.     # Only setup audio things if engine is not running

  3077.     if not host.is_engine_running():

  3078.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3079. 

  3080.         if not audioDriver.startswith("JACK"):

  3081.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3082.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3083.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  3084. 

  3085.     # --------------------------------------------------------------------------------------------------------

  3086.     # fix things if needed

  3087. 

  3088.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3089.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3090.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3091. 

  3092.     # --------------------------------------------------------------------------------------------------------

  3093.     # return selected driver name

  3094. 

  3095.     return audioDriver

  3096. 

  3097. # ------------------------------------------------------------------------------------------------------------

  3098. # Run Carla without showing UI

  3099. 

  3100. def runHostWithoutUI(host):

  3101.     # kdevelop likes this :)

  3102.     if False: host = CarlaHostNull()

  3103. 

  3104.     # --------------------------------------------------------------------------------------------------------

  3105.     # Some initial checks

  3106. 

  3107.     if not gCarla.nogui:

  3108.         return

  3109. 

  3110.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  3111. 

  3112.     if not projectFile:

  3113.         print("Carla no-gui mode can only be used together with a project file.")

  3114.         sys.exit(1)

  3115. 

  3116.     # --------------------------------------------------------------------------------------------------------

  3117.     # Additional imports

  3118. 

  3119.     from time import sleep

  3120. 

  3121.     # --------------------------------------------------------------------------------------------------------

  3122.     # Init engine

  3123. 

  3124.     audioDriver = setEngineSettings(host)

  3125.     if not host.engine_init(audioDriver, "Carla"):

  3126.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3127.         sys.exit(1)

  3128. 

  3129.     if not host.load_project(projectFile):

  3130.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3131.         host.engine_close()

  3132.         sys.exit(1)

  3133. 

  3134.     # --------------------------------------------------------------------------------------------------------

  3135.     # Idle

  3136. 

  3137.     print("Carla ready!")

  3138. 

  3139.     while host.is_engine_running() and not gCarla.term:

  3140.         host.engine_idle()

  3141.         sleep(0.0333) # 30 Hz

  3142. 

  3143.     # --------------------------------------------------------------------------------------------------------

  3144.     # Stop

  3145. 

  3146.     host.engine_close()

  3147.     sys.exit(0)

  3148. 

  3149. # ------------------------------------------------------------------------------------------------------------