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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2018 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Config)

  21. 

  22. from carla_config import *

  23. 

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

  25. # Imports (Global)

  26. 

  27. import json

  28. 

  29. if config_UseQt5:

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

  31.     from PyQt5.QtGui import QImage, QPalette

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

  33. else:

  34.     from PyQt4.QtCore import qCritical, QEventLoop, QFileInfo, QModelIndex, QPointF, QTimer

  35.     from PyQt4.QtGui import QImage, QPalette

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

  37. 

  38. # ------------------------------------------------------------------------------------------------------------

  39. # Imports (Custom)

  40. 

  41. import patchcanvas

  42. import ui_carla_host

  43. 

  44. from carla_app import *

  45. from carla_database import *

  46. from carla_settings import *

  47. from carla_utils import *

  48. from carla_widgets import *

  49. 

  50. from digitalpeakmeter import DigitalPeakMeter

  51. from pixmapkeyboard import PixmapKeyboardHArea

  52. 

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

  54. # Try Import OpenGL

  55. 

  56. try:

  57.     if config_UseQt5:

  58.         from PyQt5.QtOpenGL import QGLWidget

  59.     else:

  60.         from PyQt4.QtOpenGL import QGLWidget

  61.     hasGL = True

  62. except:

  63.     hasGL = False

  64. 

  65. # ------------------------------------------------------------------------------------------------------------

  66. # Safe exception hook, needed for PyQt5

  67. 

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

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

  70. 

  71. # ------------------------------------------------------------------------------------------------------------

  72. # Session Management support

  73. 

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

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

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

  77. 

  78. # ------------------------------------------------------------------------------------------------------------

  79. # Small print helper

  80. 

  81. def processMode2Str(processMode):

  82.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  83.         return "Single client"

  84.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  85.         return "Multi client"

  86.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  87.         return "Continuous Rack"

  88.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  89.         return "Patchbay"

  90.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  91.         return "Bridge"

  92.     return "Unknown"

  93. 

  94. # ------------------------------------------------------------------------------------------------------------

  95. # Carla Print class

  96. 

  97. class CarlaPrint:

  98.     def __init__(self, err):

  99.         self.err = err

  100. 

  101.     def flush(self):

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

  103. 

  104.     def write(self, string):

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

  106. 

  107. # ------------------------------------------------------------------------------------------------------------

  108. # Host Window

  109. 

  110. class HostWindow(QMainWindow):

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

  112.     # signals

  113.     SIGTERM = pyqtSignal()

  114.     SIGUSR1 = pyqtSignal()

  115. 

  116.     # CustomActions

  117.     CUSTOM_ACTION_NONE         = 0

  118.     CUSTOM_ACTION_APP_CLOSE    = 1

  119.     CUSTOM_ACTION_PROJECT_LOAD = 2

  120. 

  121.     # --------------------------------------------------------------------------------------------------------

  122. 

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

  124.         QMainWindow.__init__(self, parent)

  125.         self.host = host

  126.         self.ui = ui_carla_host.Ui_CarlaHostW()

  127.         self.ui.setupUi(self)

  128.         gCarla.gui = self

  129. 

  130.         if False:

  131.             # kdevelop likes this :)

  132.             host = CarlaHostNull()

  133.             self.host = host

  134. 

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

  136. 

  137.         self.fParentOrSelf = parent or self

  138. 

  139.         # ----------------------------------------------------------------------------------------------------

  140.         # Internal stuff

  141. 

  142.         self.fIdleTimerFast = 0

  143.         self.fIdleTimerSlow = 0

  144. 

  145.         self.fLadspaRdfNeedsUpdate = True

  146.         self.fLadspaRdfList = []

  147. 

  148.         self.fPluginCount = 0

  149.         self.fPluginList  = []

  150. 

  151.         self.fProjectFilename  = ""

  152.         self.fIsProjectLoading = False

  153.         self.fCurrentlyRemovingAllPlugins = False

  154. 

  155.         self.fLastTransportBPM   = 0.0

  156.         self.fLastTransportFrame = 0

  157.         self.fLastTransportState = False

  158.         self.fSampleRate         = 0.0

  159. 

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

  161.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  162. 

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

  164.         self.fFirstEngineInit = True

  165. 

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

  167.         self.fSavedSettings = {}

  168. 

  169.         if host.isControl:

  170.             self.fClientName         = "Carla-Control"

  171.             self.fSessionManagerName = "Control"

  172.         elif host.isPlugin:

  173.             self.fClientName         = "Carla-Plugin"

  174.             self.fSessionManagerName = "Plugin"

  175.         elif LADISH_APP_NAME:

  176.             self.fClientName         = LADISH_APP_NAME

  177.             self.fSessionManagerName = "LADISH"

  178.         elif NSM_URL and host.nsmOK:

  179.             self.fClientName         = "Carla.tmp"

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

  181.         else:

  182.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  183.             self.fSessionManagerName = ""

  184. 

  185.         # ----------------------------------------------------------------------------------------------------

  186.         # Internal stuff (patchbay)

  187. 

  188.         self.fExportImage = QImage()

  189. 

  190.         self.fPeaksCleared = True

  191. 

  192.         self.fExternalPatchbay = False

  193.         self.fSelectedPlugins  = []

  194. 

  195.         self.fCanvasWidth  = 0

  196.         self.fCanvasHeight = 0

  197.         self.fMiniCanvasUpdateTimeout = 0

  198. 

  199.         self.fWithCanvas = withCanvas

  200. 

  201.         # ----------------------------------------------------------------------------------------------------

  202.         # Set up GUI (engine stopped)

  203. 

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

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

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

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

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

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

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

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

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

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

  214. 

  215.             if self.host.isControl:

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

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

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

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

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

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

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

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

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

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

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

  227.             else:

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

  229. 

  230.         else:

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

  232. 

  233.             if WINDOWS:

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

  235. 

  236.         if not self.host.isControl:

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

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

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

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

  241. 

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

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

  244. 

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

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

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

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

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

  250. 

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

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

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

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

  255. 

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

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

  258. 

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

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

  261. 

  262.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  280.             self.ui.miniCanvasPreview.hide()

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

  282.             if WINDOWS:

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

  284. 

  285.             if host.isControl:

  286.                 self.ui.dockWidget.hide()

  287. 

  288.         # ----------------------------------------------------------------------------------------------------

  289.         # Set up GUI (disk)

  290. 

  291.         exts = gCarla.utils.get_supported_file_extensions()

  292. 

  293.         self.fDirModel = QFileSystemModel(self)

  294.         self.fDirModel.setRootPath(HOME)

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

  296. 

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

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

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

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

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

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

  303. 

  304.         # ----------------------------------------------------------------------------------------------------

  305.         # Set up GUI (transport)

  306. 

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

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

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

  310. 

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

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

  313. 

  314.         if minLabelWidth < labelTimeWidth:

  315.             minLabelWidth = labelTimeWidth

  316.         if minLabelWidth < labelBBTWidth:

  317.             minLabelWidth = labelBBTWidth

  318. 

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

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

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

  322. 

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

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

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

  326. 

  327.         if host.isControl or host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  340. 

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

  342. 

  343.         # ----------------------------------------------------------------------------------------------------

  344.         # Set up GUI (rack)

  345. 

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

  347. 

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

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

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

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

  352. 

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

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

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

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

  357. 

  358.         self.ui.rack.setStyleSheet("""

  359.           QLabel#pad_left {

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

  361.             background-repeat: repeat-y;

  362.           }

  363.           QLabel#pad_right {

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

  365.             background-repeat: repeat-y;

  366.           }

  367.           CarlaRackList#CarlaRackList {

  368.             background-color: black;

  369.           }

  370.         """)

  371. 

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

  373.         # Set up GUI (patchbay)

  374. 

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

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

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

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

  379. 

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

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

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

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

  384. 

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

  386.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  388. 

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

  390. 

  391.         self.ui.miniCanvasPreview.setRealParent(self)

  392. 

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

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

  395. 

  396.         if MACOS:

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

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

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

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

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

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

  403. 

  404.         # ----------------------------------------------------------------------------------------------------

  405.         # Load Settings

  406. 

  407.         self.loadSettings(True)

  408. 

  409.         # ----------------------------------------------------------------------------------------------------

  410.         # Set-up Canvas

  411. 

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

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

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

  415. 

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

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

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

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

  420. 

  421.         self.setupCanvas()

  422. 

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

  424.         # Connect actions to functions

  425. 

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

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

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

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

  430. 

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

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

  433. 

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

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

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

  437. 

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

  439. 

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

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

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

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

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

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

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

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

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

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

  450. 

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

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

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

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

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

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

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

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

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

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

  461. 

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

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

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

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

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

  467. 

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

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

  470. 

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

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

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

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

  475. 

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

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

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

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

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

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

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

  483. 

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

  485. 

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

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

  488. 

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

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

  491. 

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

  493. 

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

  495. 

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

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

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

  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.SampleRateChangedCallback.connect(self.slot_handleSampleRateChangedCallback)

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

  507. 

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

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

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

  511. 

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

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

  514. 

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

  516. 

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

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

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

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

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

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

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

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

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

  526. 

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

  528. 

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

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

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

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

  533. 

  534.         # ----------------------------------------------------------------------------------------------------

  535.         # Final setup

  536. 

  537.         self.ui.text_logs.clear()

  538.         self.setProperWindowTitle()

  539. 

  540.         # Disable non-supported features

  541.         features = gCarla.utils.get_supported_features()

  542. 

  543.         if "link" not in features:

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

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

  546. 

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

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

  549.             self.startTimers()

  550. 

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

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

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

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

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

  556. 

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

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

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

  560. 

  561.         # Load initial project file if set

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

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

  564. 

  565.             if projectFile:

  566.                 self.loadProjectLater(projectFile)

  567. 

  568.         # For NSM we wait for the open message

  569.         if NSM_URL and host.nsmOK:

  570.             host.nsm_ready(-1)

  571.             return

  572. 

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

  574. 

  575.     # --------------------------------------------------------------------------------------------------------

  576.     # Setup

  577. 

  578.     def compactPlugin(self, pluginId):

  579.         if pluginId > self.fPluginCount:

  580.             return

  581. 

  582.         pitem = self.fPluginList[pluginId]

  583. 

  584.         if pitem is None:

  585.             return

  586. 

  587.         pitem.recreateWidget(True)

  588. 

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

  590.         if pluginIdA == pluginIdB:

  591.             return

  592.         if pluginIdA < 0 or pluginIdB < 0:

  593.             return

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

  595.             return

  596. 

  597.         useCustomSkins = self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS]

  598. 

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

  600. 

  601.         itemA = self.fPluginList[pluginIdA]

  602.         compactA = itemA.isCompacted()

  603.         guiShownA = itemA.isGuiShown()

  604. 

  605.         itemB = self.fPluginList[pluginIdB]

  606.         compactB = itemB.isCompacted()

  607.         guiShownB = itemB.isGuiShown()

  608. 

  609.         itemA.setPluginId(pluginIdA)

  610.         itemA.recreateWidget2(compactB, guiShownB)

  611. 

  612.         itemB.setPluginId(pluginIdB)

  613.         itemB.recreateWidget2(compactA, guiShownA)

  614. 

  615.         self.slot_canvasRefresh()

  616. 

  617.     def setLoadRDFsNeeded(self):

  618.         self.fLadspaRdfNeedsUpdate = True

  619. 

  620.     def setProperWindowTitle(self):

  621.         title = self.fClientName

  622. 

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

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

  625.         if self.fSessionManagerName:

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

  627. 

  628.         self.setWindowTitle(title)

  629. 

  630.     # --------------------------------------------------------------------------------------------------------

  631.     # Files

  632. 

  633.     def makeExtraFilename(self):

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

  635. 

  636.     def loadProjectNow(self):

  637.         if not self.fProjectFilename:

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

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

  640.             return

  641. 

  642.         self.projectLoadingStarted()

  643.         self.fIsProjectLoading = True

  644.         self.host.load_project(self.fProjectFilename)

  645. 

  646.         # Project finished loading is sent by engine

  647. 

  648.     def loadProjectLater(self, filename):

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

  650.         self.setProperWindowTitle()

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

  652. 

  653.     def saveProjectNow(self):

  654.         if not self.fProjectFilename:

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

  656. 

  657.         self.host.save_project(self.fProjectFilename)

  658. 

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

  660.             json.dump({

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

  662.             }, fh)

  663. 

  664.     def projectLoadingStarted(self):

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

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

  667. 

  668.     def projectLoadingFinished(self):

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

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

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

  672. 

  673.         extrafile = self.makeExtraFilename()

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

  675.             return

  676. 

  677.         try:

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

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

  680.         except:

  681.             return

  682. 

  683.         patchcanvas.restoreGroupPositions(canvasdata)

  684. 

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

  686.     # Files (menu actions)

  687. 

  688.     @pyqtSlot()

  689.     def slot_fileNew(self):

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

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

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

  693.             return

  694. 

  695.         self.pluginRemoveAll()

  696.         self.fProjectFilename = ""

  697.         self.setProperWindowTitle()

  698. 

  699.     @pyqtSlot()

  700.     def slot_fileOpen(self):

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

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

  703. 

  704.         if config_UseQt5:

  705.             filename = filename[0]

  706.         if not filename:

  707.             return

  708. 

  709.         newFile = True

  710. 

  711.         if self.fPluginCount > 0:

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

  713.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  715. 

  716.         if newFile:

  717.             self.pluginRemoveAll()

  718.             self.fProjectFilename = filename

  719.             self.setProperWindowTitle()

  720.             self.loadProjectNow()

  721.         else:

  722.             filenameOld = self.fProjectFilename

  723.             self.fProjectFilename = filename

  724.             self.loadProjectNow()

  725.             self.fProjectFilename = filenameOld

  726. 

  727.     @pyqtSlot()

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

  729.         if self.fProjectFilename and not saveAs:

  730.             return self.saveProjectNow()

  731. 

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

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

  734. 

  735.         if config_UseQt5:

  736.             filename = filename[0]

  737.         if not filename:

  738.             return

  739. 

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

  741.             filename += ".carxp"

  742. 

  743.         if self.fProjectFilename != filename:

  744.             self.fProjectFilename = filename

  745.             self.setProperWindowTitle()

  746. 

  747.         self.saveProjectNow()

  748. 

  749.     @pyqtSlot()

  750.     def slot_fileSaveAs(self):

  751.         self.slot_fileSave(True)

  752. 

  753.     @pyqtSlot()

  754.     def slot_loadProjectNow(self):

  755.         self.loadProjectNow()

  756. 

  757.     # --------------------------------------------------------------------------------------------------------

  758.     # Engine (menu actions)

  759. 

  760.     @pyqtSlot()

  761.     def slot_engineStart(self):

  762.         audioDriver = setEngineSettings(self.host)

  763.         firstInit   = self.fFirstEngineInit

  764. 

  765.         self.fFirstEngineInit = False

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

  767. 

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

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

  770.                 settings = QSettings()

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

  772.                 del settings

  773.                 self.host.transport_bpm(lastBpm)

  774.             return

  775. 

  776.         elif firstInit:

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

  778.             return

  779. 

  780.         audioError = self.host.get_last_error()

  781. 

  782.         if audioError:

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

  784.         else:

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

  786. 

  787.     @pyqtSlot()

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

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

  790. 

  791.         if self.fPluginCount == 0:

  792.             self.engineStopFinal()

  793.             return True

  794. 

  795.         if not forced:

  796.             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"

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

  798.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  799.             if ask != QMessageBox.Yes:

  800.                 return False

  801. 

  802.         return self.slot_engineStopTryAgain()

  803. 

  804.     @pyqtSlot()

  805.     def slot_engineStopTryAgain(self):

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

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

  808.             return False

  809. 

  810.         self.engineStopFinal()

  811.         return True

  812. 

  813.     def engineStopFinal(self):

  814.         self.killTimers()

  815.         self.removeAllPlugins()

  816. 

  817.         if self.host.is_engine_running():

  818.             self.host.remove_all_plugins()

  819. 

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

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

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

  823. 

  824.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  825.             self.close()

  826.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  827.             self.slot_engineStart()

  828.             self.loadProjectNow()

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

  830. 

  831.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  832. 

  833.     # --------------------------------------------------------------------------------------------------------

  834.     # Engine (host callbacks)

  835. 

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

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

  838.         self.fSampleRate = sampleRate

  839. 

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

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

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

  843. 

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

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

  846. 

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

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

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

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

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

  852.         else:

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

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

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

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

  857. 

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

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

  860. 

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

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

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

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

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

  866.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  867. 

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

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

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

  871. 

  872.         self.refreshTransport(True)

  873. 

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

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

  876. 

  877.         self.startTimers()

  878. 

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

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

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

  882.         self.ui.text_logs.appendPlainText("  Sample rate:  %.1f" % sampleRate)

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

  884. 

  885.     @pyqtSlot()

  886.     def slot_handleEngineStoppedCallback(self):

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

  888. 

  889.         patchcanvas.clear()

  890.         self.killTimers()

  891. 

  892.         # just in case

  893.         self.removeAllPlugins()

  894. 

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

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

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

  898. 

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

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

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

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

  903. 

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

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

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

  907. 

  908.     @pyqtSlot(float)

  909.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  910.         self.fSampleRate = newSampleRate

  911.         self.refreshTransport(True)

  912. 

  913.     @pyqtSlot()

  914.     def slot_handleProjectLoadFinishedCallback(self):

  915.         self.fIsProjectLoading = False

  916.         self.projectLoadingFinished()

  917. 

  918.     # --------------------------------------------------------------------------------------------------------

  919.     # Plugins

  920. 

  921.     def removeAllPlugins(self):

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

  923.         patchcanvas.handleAllPluginsRemoved()

  924. 

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

  926.             pass

  927. 

  928.         self.clearSideStuff()

  929. 

  930.         for pitem in self.fPluginList:

  931.             if pitem is None:

  932.                 continue

  933. 

  934.             pitem.close()

  935.             del pitem

  936. 

  937.         self.fPluginCount = 0

  938.         self.fPluginList  = []

  939. 

  940.     # --------------------------------------------------------------------------------------------------------

  941.     # Plugins (menu actions)

  942. 

  943.     def showAddPluginDialog(self):

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

  945. 

  946.         if not dialog.exec_():

  947.             return

  948. 

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

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

  951.             return

  952. 

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

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

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

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

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

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

  959. 

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

  961. 

  962.     def showAddJackAppDialog(self):

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

  964. 

  965.         if not dialog.exec_():

  966.             return

  967. 

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

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

  970.             return

  971. 

  972.         return dialog.getCommandAndFlags()

  973. 

  974.     @pyqtSlot()

  975.     def showPluginActionsMenu(self):

  976.         menu = QMenu(self)

  977. 

  978.         if config_UseQt5:

  979.             menu.addSection("Plugins")

  980.         else:

  981.             # fake section

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

  983.             font = act.font()

  984.             font.setBold(True)

  985.             act.setFont(font)

  986.             act.setEnabled(False)

  987.             menu.addSeparator()

  988. 

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

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

  991. 

  992.         if config_UseQt5:

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

  994.         else:

  995.             # fake space

  996.             act  = menu.addAction(" ")

  997.             font = act.font()

  998.             font.setBold(True)

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

  1000.             act.setEnabled(False)

  1001. 

  1002.             # fake section

  1003.             act  = menu.addAction("  All plugins (macros)")

  1004.             font = act.font()

  1005.             font.setBold(True)

  1006.             act.setFont(font)

  1007.             act.setEnabled(False)

  1008.             menu.addSeparator()

  1009. 

  1010.         menu.addAction(self.ui.act_plugins_enable)

  1011.         menu.addAction(self.ui.act_plugins_disable)

  1012.         menu.addSeparator()

  1013.         menu.addAction(self.ui.act_plugins_volume100)

  1014.         menu.addAction(self.ui.act_plugins_mute)

  1015.         menu.addSeparator()

  1016.         menu.addAction(self.ui.act_plugins_wet100)

  1017.         menu.addAction(self.ui.act_plugins_bypass)

  1018.         menu.addSeparator()

  1019.         menu.addAction(self.ui.act_plugins_center)

  1020.         menu.addSeparator()

  1021.         menu.addAction(self.ui.act_plugins_compact)

  1022.         menu.addAction(self.ui.act_plugins_expand)

  1023. 

  1024.         menu.exec_(QCursor.pos())

  1025. 

  1026.     @pyqtSlot()

  1027.     def slot_pluginAdd(self):

  1028.         data = self.showAddPluginDialog()

  1029. 

  1030.         if data is None:

  1031.             return

  1032. 

  1033.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1034. 

  1035.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1036.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1037. 

  1038.     @pyqtSlot()

  1039.     def slot_confirmRemoveAll(self):

  1040.         if self.fPluginCount == 0:

  1041.             return

  1042. 

  1043.         if QMessageBox.question(self, self.tr("Remove All"),

  1044.                                       self.tr("Are you sure you want to remove all plugins?"),

  1045.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1046.             return

  1047. 

  1048.         self.pluginRemoveAll()

  1049. 

  1050.     def pluginRemoveAll(self):

  1051.         if self.fPluginCount == 0:

  1052.             return

  1053. 

  1054.         # FIXME - this is not working

  1055.         # removing a plugin causes flicker, the rack-list becomes empty for some time

  1056.         # this breaks the remove-all animation, so don't bother using it

  1057.         if False and not self.host.isPlugin:

  1058.             self.projectLoadingStarted()

  1059. 

  1060.             app = QApplication.instance()

  1061.             app.processEvents()

  1062. 

  1063.             for i in reversed(range(self.fPluginCount)):

  1064.                 self.host.remove_plugin(i)

  1065.                 app.processEvents()

  1066. 

  1067.             self.projectLoadingFinished()

  1068. 

  1069.         self.fCurrentlyRemovingAllPlugins = True

  1070.         ok = self.host.remove_all_plugins()

  1071.         self.fCurrentlyRemovingAllPlugins = False

  1072. 

  1073.         if ok:

  1074.             self.removeAllPlugins()

  1075.         else:

  1076.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1077.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1078. 

  1079.         self.fCurrentlyRemovingAllPlugins = False

  1080. 

  1081.     @pyqtSlot()

  1082.     def slot_jackAppAdd(self):

  1083.         data = self.showAddJackAppDialog()

  1084. 

  1085.         if data is None:

  1086.             return

  1087. 

  1088.         filename, name, label = data

  1089. 

  1090.         if not filename:

  1091.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1092.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1093.             return

  1094. 

  1095.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1096.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1097.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1098. 

  1099.     # --------------------------------------------------------------------------------------------------------

  1100.     # Plugins (macros)

  1101. 

  1102.     @pyqtSlot()

  1103.     def slot_pluginsEnable(self):

  1104.         if not self.host.is_engine_running():

  1105.             return

  1106. 

  1107.         for pitem in self.fPluginList:

  1108.             if pitem is None:

  1109.                 break

  1110. 

  1111.             pitem.getWidget().setActive(True, True, True)

  1112. 

  1113.     @pyqtSlot()

  1114.     def slot_pluginsDisable(self):

  1115.         if not self.host.is_engine_running():

  1116.             return

  1117. 

  1118.         for pitem in self.fPluginList:

  1119.             if pitem is None:

  1120.                 break

  1121. 

  1122.             pitem.getWidget().setActive(False, True, True)

  1123. 

  1124.     @pyqtSlot()

  1125.     def slot_pluginsVolume100(self):

  1126.         if not self.host.is_engine_running():

  1127.             return

  1128. 

  1129.         for pitem in self.fPluginList:

  1130.             if pitem is None:

  1131.                 break

  1132. 

  1133.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1134. 

  1135.     @pyqtSlot()

  1136.     def slot_pluginsMute(self):

  1137.         if not self.host.is_engine_running():

  1138.             return

  1139. 

  1140.         for pitem in self.fPluginList:

  1141.             if pitem is None:

  1142.                 break

  1143. 

  1144.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1145. 

  1146.     @pyqtSlot()

  1147.     def slot_pluginsWet100(self):

  1148.         if not self.host.is_engine_running():

  1149.             return

  1150. 

  1151.         for pitem in self.fPluginList:

  1152.             if pitem is None:

  1153.                 break

  1154. 

  1155.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1156. 

  1157.     @pyqtSlot()

  1158.     def slot_pluginsBypass(self):

  1159.         if not self.host.is_engine_running():

  1160.             return

  1161. 

  1162.         for pitem in self.fPluginList:

  1163.             if pitem is None:

  1164.                 break

  1165. 

  1166.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1167. 

  1168.     @pyqtSlot()

  1169.     def slot_pluginsCenter(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().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1178.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1179.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1180. 

  1181.     @pyqtSlot()

  1182.     def slot_pluginsCompact(self):

  1183.         for pitem in self.fPluginList:

  1184.             if pitem is None:

  1185.                 break

  1186.             pitem.compact()

  1187. 

  1188.     @pyqtSlot()

  1189.     def slot_pluginsExpand(self):

  1190.         for pitem in self.fPluginList:

  1191.             if pitem is None:

  1192.                 break

  1193.             pitem.expand()

  1194. 

  1195.     # --------------------------------------------------------------------------------------------------------

  1196.     # Plugins (host callbacks)

  1197. 

  1198.     @pyqtSlot(int, str)

  1199.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1200.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1201. 

  1202.         self.fPluginList.append(pitem)

  1203.         self.fPluginCount += 1

  1204. 

  1205.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1206. 

  1207.     @pyqtSlot(int)

  1208.     def slot_handlePluginRemovedCallback(self, pluginId):

  1209.         patchcanvas.handlePluginRemoved(pluginId)

  1210. 

  1211.         if pluginId in self.fSelectedPlugins:

  1212.             self.clearSideStuff()

  1213. 

  1214.         pitem = self.getPluginItem(pluginId)

  1215. 

  1216.         self.fPluginCount -= 1

  1217.         self.fPluginList.pop(pluginId)

  1218.         self.ui.listWidget.takeItem(pluginId)

  1219. 

  1220.         if pitem is not None:

  1221.             pitem.close()

  1222.             del pitem

  1223. 

  1224.         # push all plugins 1 slot back

  1225.         for i in range(pluginId, self.fPluginCount):

  1226.             pitem = self.fPluginList[i]

  1227.             pitem.setPluginId(i)

  1228. 

  1229.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1230. 

  1231.     # --------------------------------------------------------------------------------------------------------

  1232.     # Canvas

  1233. 

  1234.     def clearSideStuff(self):

  1235.         self.scene.clearSelection()

  1236. 

  1237.         self.fSelectedPlugins = []

  1238. 

  1239.         self.ui.keyboard.allNotesOff(False)

  1240.         self.ui.scrollArea.setEnabled(False)

  1241. 

  1242.         self.fPeaksCleared = True

  1243.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1244.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1245.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1246.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1247. 

  1248.     def setupCanvas(self):

  1249.         pOptions = patchcanvas.options_t()

  1250.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1251.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1252.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1253.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1254.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1255. 

  1256.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1257.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1258.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1259.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1260.         else:

  1261.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1262. 

  1263.         pFeatures = patchcanvas.features_t()

  1264.         pFeatures.group_info   = False

  1265.         pFeatures.group_rename = False

  1266.         pFeatures.port_info    = False

  1267.         pFeatures.port_rename  = False

  1268.         pFeatures.handle_group_pos = True

  1269. 

  1270.         patchcanvas.setOptions(pOptions)

  1271.         patchcanvas.setFeatures(pFeatures)

  1272.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1273. 

  1274.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1275. 

  1276.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1277.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1278.             self.fCanvasHeight = int(tryCanvasSize[1])

  1279.         else:

  1280.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1281.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1282. 

  1283.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1284.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1285.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1286. 

  1287.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1288.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1289. 

  1290.     def updateCanvasInitialPos(self):

  1291.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1292.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1293.         patchcanvas.setInitialPos(x, y)

  1294. 

  1295.     def updateMiniCanvasLater(self):

  1296.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1297. 

  1298.     # --------------------------------------------------------------------------------------------------------

  1299.     # Canvas (menu actions)

  1300. 

  1301.     @pyqtSlot()

  1302.     def slot_canvasShowInternal(self):

  1303.         self.fExternalPatchbay = False

  1304.         self.ui.act_canvas_show_internal.blockSignals(True)

  1305.         self.ui.act_canvas_show_external.blockSignals(True)

  1306.         self.ui.act_canvas_show_internal.setChecked(True)

  1307.         self.ui.act_canvas_show_external.setChecked(False)

  1308.         self.ui.act_canvas_show_internal.blockSignals(False)

  1309.         self.ui.act_canvas_show_external.blockSignals(False)

  1310.         self.slot_canvasRefresh()

  1311. 

  1312.     @pyqtSlot()

  1313.     def slot_canvasShowExternal(self):

  1314.         self.fExternalPatchbay = True

  1315.         self.ui.act_canvas_show_internal.blockSignals(True)

  1316.         self.ui.act_canvas_show_external.blockSignals(True)

  1317.         self.ui.act_canvas_show_internal.setChecked(False)

  1318.         self.ui.act_canvas_show_external.setChecked(True)

  1319.         self.ui.act_canvas_show_internal.blockSignals(False)

  1320.         self.ui.act_canvas_show_external.blockSignals(False)

  1321.         self.slot_canvasRefresh()

  1322. 

  1323.     @pyqtSlot()

  1324.     def slot_canvasArrange(self):

  1325.         patchcanvas.arrange()

  1326. 

  1327.     @pyqtSlot()

  1328.     def slot_canvasRefresh(self):

  1329.         patchcanvas.clear()

  1330. 

  1331.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1332.             return

  1333. 

  1334.         if self.host.is_engine_running():

  1335.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1336. 

  1337.         self.updateMiniCanvasLater()

  1338. 

  1339.     @pyqtSlot()

  1340.     def slot_canvasZoomFit(self):

  1341.         self.scene.zoom_fit()

  1342. 

  1343.     @pyqtSlot()

  1344.     def slot_canvasZoomIn(self):

  1345.         self.scene.zoom_in()

  1346. 

  1347.     @pyqtSlot()

  1348.     def slot_canvasZoomOut(self):

  1349.         self.scene.zoom_out()

  1350. 

  1351.     @pyqtSlot()

  1352.     def slot_canvasZoomReset(self):

  1353.         self.scene.zoom_reset()

  1354. 

  1355.     @pyqtSlot()

  1356.     def slot_canvasSaveImage(self):

  1357.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1358. 

  1359.         if config_UseQt5:

  1360.             newPath = newPath[0]

  1361.         if not newPath:

  1362.             return

  1363. 

  1364.         self.scene.clearSelection()

  1365. 

  1366.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1367.             imgFormat = "JPG"

  1368.         elif newPath.lower().endswith((".png",)):

  1369.             imgFormat = "PNG"

  1370.         else:

  1371.             # File-dialog may not auto-add the extension

  1372.             imgFormat = "PNG"

  1373.             newPath  += ".png"

  1374. 

  1375.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1376.         painter = QPainter(self.fExportImage)

  1377.         painter.save()

  1378.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1379.         painter.setRenderHint(QPainter.TextAntialiasing)

  1380.         self.scene.render(painter)

  1381.         self.fExportImage.save(newPath, imgFormat, 100)

  1382.         painter.restore()

  1383. 

  1384.     # --------------------------------------------------------------------------------------------------------

  1385.     # Canvas (canvas callbacks)

  1386. 

  1387.     @pyqtSlot(int, int, QPointF)

  1388.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1389.         self.updateMiniCanvasLater()

  1390. 

  1391.     @pyqtSlot(float)

  1392.     def slot_canvasScaleChanged(self, scale):

  1393.         self.ui.miniCanvasPreview.setViewScale(scale)

  1394. 

  1395.     @pyqtSlot(list)

  1396.     def slot_canvasPluginSelected(self, pluginList):

  1397.         self.ui.keyboard.allNotesOff(False)

  1398.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1399.         self.fSelectedPlugins = pluginList

  1400. 

  1401.     # --------------------------------------------------------------------------------------------------------

  1402.     # Canvas (host callbacks)

  1403. 

  1404.     @pyqtSlot(int, int, int, str)

  1405.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1406.         pcSplit = patchcanvas.SPLIT_UNDEF

  1407.         pcIcon  = patchcanvas.ICON_APPLICATION

  1408. 

  1409.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1410.             pcIcon = patchcanvas.ICON_PLUGIN

  1411.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1412.             pcIcon = patchcanvas.ICON_HARDWARE

  1413.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1414.             pass

  1415.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1416.             pcIcon = patchcanvas.ICON_DISTRHO

  1417.         elif clientIcon == PATCHBAY_ICON_FILE:

  1418.             pcIcon = patchcanvas.ICON_FILE

  1419. 

  1420.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1421. 

  1422.         self.updateMiniCanvasLater()

  1423. 

  1424.         if pluginId < 0:

  1425.             return

  1426.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1427.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1428.             return

  1429. 

  1430.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1431.             hasCustomUI = False

  1432.         else:

  1433.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1434. 

  1435.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1436. 

  1437.     @pyqtSlot(int)

  1438.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1439.         patchcanvas.removeGroup(clientId)

  1440.         self.updateMiniCanvasLater()

  1441. 

  1442.     @pyqtSlot(int, str)

  1443.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1444.         patchcanvas.renameGroup(clientId, newClientName)

  1445.         self.updateMiniCanvasLater()

  1446. 

  1447.     @pyqtSlot(int, int, int)

  1448.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1449.         pcIcon = patchcanvas.ICON_APPLICATION

  1450. 

  1451.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1452.             pcIcon = patchcanvas.ICON_PLUGIN

  1453.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1454.             pcIcon = patchcanvas.ICON_HARDWARE

  1455.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1456.             pass

  1457.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1458.             pcIcon = patchcanvas.ICON_DISTRHO

  1459.         elif clientIcon == PATCHBAY_ICON_FILE:

  1460.             pcIcon = patchcanvas.ICON_FILE

  1461. 

  1462.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1463.         self.updateMiniCanvasLater()

  1464. 

  1465.         if pluginId < 0:

  1466.             return

  1467.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1468.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1469.             return

  1470. 

  1471.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1472.             hasCustomUI = False

  1473.         else:

  1474.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1475. 

  1476.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1477. 

  1478.     @pyqtSlot(int, int, int, str)

  1479.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1480.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1481.             portMode = patchcanvas.PORT_MODE_INPUT

  1482.         else:

  1483.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1484. 

  1485.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1486.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1487.             isAlternate = False

  1488.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1489.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1490.             isAlternate = True

  1491.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1492.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1493.             isAlternate = False

  1494.         else:

  1495.             portType    = patchcanvas.PORT_TYPE_NULL

  1496.             isAlternate = False

  1497. 

  1498.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1499.         self.updateMiniCanvasLater()

  1500. 

  1501.     @pyqtSlot(int, int)

  1502.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1503.         patchcanvas.removePort(groupId, portId)

  1504.         self.updateMiniCanvasLater()

  1505. 

  1506.     @pyqtSlot(int, int, str)

  1507.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1508.         patchcanvas.renamePort(groupId, portId, newPortName)

  1509.         self.updateMiniCanvasLater()

  1510. 

  1511.     @pyqtSlot(int, int, int, int, int)

  1512.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1513.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1514.         self.updateMiniCanvasLater()

  1515. 

  1516.     @pyqtSlot(int, int, int)

  1517.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1518.         patchcanvas.disconnectPorts(connectionId)

  1519.         self.updateMiniCanvasLater()

  1520. 

  1521.     # --------------------------------------------------------------------------------------------------------

  1522.     # Settings

  1523. 

  1524.     def saveSettings(self):

  1525.         settings = QSettings()

  1526. 

  1527.         settings.setValue("Geometry", self.saveGeometry())

  1528.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1529.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1530. 

  1531.         diskFolders = []

  1532. 

  1533.         for i in range(self.ui.cb_disk.count()):

  1534.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1535. 

  1536.         settings.setValue("DiskFolders", diskFolders)

  1537.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1538. 

  1539.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1540.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1541.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1542.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1543. 

  1544.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE, self.host.transportMode)

  1545. 

  1546.     def loadSettings(self, firstTime):

  1547.         settings = QSettings()

  1548. 

  1549.         if firstTime:

  1550.             self.restoreGeometry(settings.value("Geometry", b""))

  1551. 

  1552.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1553.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1554.             self.ui.toolBar.setEnabled(showToolbar)

  1555.             self.ui.toolBar.setVisible(showToolbar)

  1556. 

  1557.             #if settings.contains("SplitterState"):

  1558.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1559.             #else:

  1560.                 #self.ui.splitter.setSizes([210, 99999])

  1561. 

  1562.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1563.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1564.             self.ui.dockWidget.setEnabled(showSidePanel)

  1565.             self.ui.dockWidget.setVisible(showSidePanel)

  1566. 

  1567.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1568. 

  1569.             self.ui.cb_disk.setItemData(0, HOME)

  1570. 

  1571.             for i in range(len(diskFolders)):

  1572.                 if i == 0: continue

  1573.                 folder = diskFolders[i]

  1574.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1575. 

  1576.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1577.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1578. 

  1579.             showMeters = settings.value("ShowMeters", True, type=bool)

  1580.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1581.             self.ui.peak_in.setVisible(showMeters)

  1582.             self.ui.peak_out.setVisible(showMeters)

  1583. 

  1584.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1585.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1586.             self.ui.scrollArea.setVisible(showKeyboard)

  1587. 

  1588.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1589. 

  1590.         # TODO - complete this

  1591. 

  1592.         self.fSavedSettings = {

  1593.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1594.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1595.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1596.             CARLA_KEY_MAIN_USE_CUSTOM_SKINS:    settings.value(CARLA_KEY_MAIN_USE_CUSTOM_SKINS,    CARLA_DEFAULT_MAIN_USE_CUSTOM_SKINS,    type=bool),

  1597.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1598.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1599.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1600.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1601.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1602.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1603.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1604.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1605.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1606.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1607.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1608.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1609.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1610.         }

  1611. 

  1612.         settings = QSettings("falkTX", "Carla2")

  1613. 

  1614.         if self.host.experimental and not self.host.isControl:

  1615.             self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1616.                                                            CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1617.         else:

  1618.             self.ui.act_add_jack.setVisible(False)

  1619. 

  1620.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1621. 

  1622.         setEngineSettings(self.host)

  1623.         self.restartTimersIfNeeded()

  1624. 

  1625.     # --------------------------------------------------------------------------------------------------------

  1626.     # Settings (helpers)

  1627. 

  1628.     def enableTransport(self, enabled):

  1629.         self.ui.group_transport_controls.setEnabled(enabled)

  1630.         self.ui.group_transport_settings.setEnabled(enabled)

  1631. 

  1632.     @pyqtSlot()

  1633.     def slot_restoreCanvasScrollbarValues(self):

  1634.         settings = QSettings()

  1635.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1636.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1637. 

  1638.     # --------------------------------------------------------------------------------------------------------

  1639.     # Settings (menu actions)

  1640. 

  1641.     @pyqtSlot(bool)

  1642.     def slot_showSidePanel(self, yesNo):

  1643.         self.ui.dockWidget.setEnabled(yesNo)

  1644.         self.ui.dockWidget.setVisible(yesNo)

  1645. 

  1646.     @pyqtSlot(bool)

  1647.     def slot_showToolbar(self, yesNo):

  1648.         self.ui.toolBar.setEnabled(yesNo)

  1649.         self.ui.toolBar.setVisible(yesNo)

  1650. 

  1651.     @pyqtSlot(bool)

  1652.     def slot_showCanvasMeters(self, yesNo):

  1653.         self.ui.peak_in.setVisible(yesNo)

  1654.         self.ui.peak_out.setVisible(yesNo)

  1655.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1656. 

  1657.     @pyqtSlot(bool)

  1658.     def slot_showCanvasKeyboard(self, yesNo):

  1659.         self.ui.scrollArea.setVisible(yesNo)

  1660.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1661. 

  1662.     @pyqtSlot()

  1663.     def slot_configureCarla(self):

  1664.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1665.         if not dialog.exec_():

  1666.             return

  1667. 

  1668.         self.loadSettings(False)

  1669. 

  1670.         patchcanvas.clear()

  1671. 

  1672.         self.setupCanvas()

  1673.         self.slot_miniCanvasCheckAll()

  1674. 

  1675.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1676.             pass

  1677.         elif self.host.is_engine_running():

  1678.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1679. 

  1680.         for pitem in self.fPluginList:

  1681.             if pitem is None:

  1682.                 break

  1683.             pitem.setUsingSkins(self.fSavedSettings[CARLA_KEY_MAIN_USE_CUSTOM_SKINS])

  1684.             pitem.recreateWidget()

  1685. 

  1686.     # --------------------------------------------------------------------------------------------------------

  1687.     # About (menu actions)

  1688. 

  1689.     @pyqtSlot()

  1690.     def slot_aboutCarla(self):

  1691.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1692. 

  1693.     @pyqtSlot()

  1694.     def slot_aboutQt(self):

  1695.         QApplication.instance().aboutQt()

  1696. 

  1697.     # --------------------------------------------------------------------------------------------------------

  1698.     # Disk (menu actions)

  1699. 

  1700.     @pyqtSlot(int)

  1701.     def slot_diskFolderChanged(self, index):

  1702.         if index < 0:

  1703.             return

  1704.         elif index == 0:

  1705.             filename = HOME

  1706.             self.ui.b_disk_remove.setEnabled(False)

  1707.         else:

  1708.             filename = self.ui.cb_disk.itemData(index)

  1709.             self.ui.b_disk_remove.setEnabled(True)

  1710. 

  1711.         self.fDirModel.setRootPath(filename)

  1712.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1713. 

  1714.     @pyqtSlot()

  1715.     def slot_diskFolderAdd(self):

  1716.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1717. 

  1718.         if newPath:

  1719.             if newPath[-1] == os.sep:

  1720.                 newPath = newPath[:-1]

  1721.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1722.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1723.             self.ui.b_disk_remove.setEnabled(True)

  1724. 

  1725.     @pyqtSlot()

  1726.     def slot_diskFolderRemove(self):

  1727.         index = self.ui.cb_disk.currentIndex()

  1728. 

  1729.         if index <= 0:

  1730.             return

  1731. 

  1732.         self.ui.cb_disk.removeItem(index)

  1733. 

  1734.         if self.ui.cb_disk.currentIndex() == 0:

  1735.             self.ui.b_disk_remove.setEnabled(False)

  1736. 

  1737.     @pyqtSlot(QModelIndex)

  1738.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1739.         filename = self.fDirModel.filePath(modelIndex)

  1740. 

  1741.         if not self.ui.listWidget.isDragUrlValid(filename):

  1742.             return

  1743. 

  1744.         if not self.host.load_file(filename):

  1745.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1746.                              self.tr("Failed to load file"),

  1747.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1748. 

  1749.     # --------------------------------------------------------------------------------------------------------

  1750.     # Transport

  1751. 

  1752.     def refreshTransport(self, forced = False):

  1753.         if not self.isVisible():

  1754.             return

  1755.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1756.             return

  1757. 

  1758.         timeInfo = self.host.get_transport_info()

  1759.         playing  = timeInfo['playing']

  1760.         frame    = timeInfo['frame']

  1761.         bpm      = timeInfo['bpm']

  1762. 

  1763.         if playing != self.fLastTransportState or forced:

  1764.             if playing:

  1765.                 icon = getIcon("media-playback-pause")

  1766.                 self.ui.b_transport_play.setChecked(True)

  1767.                 self.ui.b_transport_play.setIcon(icon)

  1768.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1769.             else:

  1770.                 icon = getIcon("media-playback-start")

  1771.                 self.ui.b_transport_play.setChecked(False)

  1772.                 self.ui.b_transport_play.setIcon(icon)

  1773.                 #self.ui.b_play.setText(self.tr("&Play"))

  1774. 

  1775.             self.fLastTransportState = playing

  1776. 

  1777.         if frame != self.fLastTransportFrame or forced:

  1778.             self.fLastTransportFrame = frame

  1779. 

  1780.             time = frame / self.fSampleRate

  1781.             secs =  time % 60

  1782.             mins = (time / 60) % 60

  1783.             hrs  = (time / 3600) % 60

  1784.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1785. 

  1786.             frame1 =  frame % 1000

  1787.             frame2 = (frame / 1000) % 1000

  1788.             frame3 = (frame / 1000000) % 1000

  1789.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1790. 

  1791.             bar  = timeInfo['bar']

  1792.             beat = timeInfo['beat']

  1793.             tick = timeInfo['tick']

  1794.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1795. 

  1796.         if bpm != self.fLastTransportBPM or forced:

  1797.             self.fLastTransportBPM = bpm

  1798. 

  1799.             if bpm > 0.0:

  1800.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1801.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1802.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1803.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1804.             else:

  1805.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1806. 

  1807.     # --------------------------------------------------------------------------------------------------------

  1808.     # Transport (menu actions)

  1809. 

  1810.     @pyqtSlot(bool)

  1811.     def slot_transportPlayPause(self, toggled):

  1812.         if self.host.isPlugin or not self.host.is_engine_running():

  1813.             return

  1814. 

  1815.         if toggled:

  1816.             self.host.transport_play()

  1817.         else:

  1818.             self.host.transport_pause()

  1819. 

  1820.         self.refreshTransport()

  1821. 

  1822.     @pyqtSlot()

  1823.     def slot_transportStop(self):

  1824.         if self.host.isPlugin or not self.host.is_engine_running():

  1825.             return

  1826. 

  1827.         self.host.transport_pause()

  1828.         self.host.transport_relocate(0)

  1829. 

  1830.         self.refreshTransport()

  1831. 

  1832.     @pyqtSlot()

  1833.     def slot_transportBackwards(self):

  1834.         if self.host.isPlugin or not self.host.is_engine_running():

  1835.             return

  1836. 

  1837.         newFrame = self.host.get_current_transport_frame() - 100000

  1838. 

  1839.         if newFrame < 0:

  1840.             newFrame = 0

  1841. 

  1842.         self.host.transport_relocate(newFrame)

  1843. 

  1844.     @pyqtSlot(float)

  1845.     def slot_transportBpmChanged(self, newValue):

  1846.         self.host.transport_bpm(newValue)

  1847. 

  1848.     @pyqtSlot()

  1849.     def slot_transportForwards(self):

  1850.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1851.             return

  1852. 

  1853.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1854.         self.host.transport_relocate(newFrame)

  1855. 

  1856.     @pyqtSlot(bool)

  1857.     def slot_transportJackEnabled(self, clicked):

  1858.         if not self.host.is_engine_running():

  1859.             return

  1860.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1861.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1862.         self.host.transportMode = mode

  1863.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1864. 

  1865.     @pyqtSlot(bool)

  1866.     def slot_transportLinkEnabled(self, clicked):

  1867.         if not self.host.is_engine_running():

  1868.             return

  1869.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1870.         extra = ":link:" if clicked else ""

  1871.         self.host.transportMode = mode

  1872.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1873. 

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

  1875.     # Canvas scrollbars

  1876. 

  1877.     @pyqtSlot(int)

  1878.     def slot_horizontalScrollBarChanged(self, value):

  1879.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1880.         if maximum == 0:

  1881.             xp = 0

  1882.         else:

  1883.             xp = float(value) / maximum

  1884.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1885.         self.updateCanvasInitialPos()

  1886. 

  1887.     @pyqtSlot(int)

  1888.     def slot_verticalScrollBarChanged(self, value):

  1889.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1890.         if maximum == 0:

  1891.             yp = 0

  1892.         else:

  1893.             yp = float(value) / maximum

  1894.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1895.         self.updateCanvasInitialPos()

  1896. 

  1897.     # --------------------------------------------------------------------------------------------------------

  1898.     # Canvas keyboard

  1899. 

  1900.     @pyqtSlot(int)

  1901.     def slot_noteOn(self, note):

  1902.         for pluginId in self.fSelectedPlugins:

  1903.             self.host.send_midi_note(pluginId, 0, note, 100)

  1904. 

  1905.             pedit = self.getPluginEditDialog(pluginId)

  1906.             pedit.noteOn(0, note, 100)

  1907. 

  1908.     @pyqtSlot(int)

  1909.     def slot_noteOff(self, note):

  1910.         for pluginId in self.fSelectedPlugins:

  1911.             self.host.send_midi_note(pluginId, 0, note, 0)

  1912. 

  1913.             pedit = self.getPluginEditDialog(pluginId)

  1914.             pedit.noteOff(0, note)

  1915. 

  1916.     # --------------------------------------------------------------------------------------------------------

  1917.     # Canvas keyboard (host callbacks)

  1918. 

  1919.     @pyqtSlot(int, int, int, int)

  1920.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1921.         if pluginId in self.fSelectedPlugins:

  1922.             self.ui.keyboard.sendNoteOn(note, False)

  1923. 

  1924.     @pyqtSlot(int, int, int)

  1925.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1926.         if pluginId in self.fSelectedPlugins:

  1927.             self.ui.keyboard.sendNoteOff(note, False)

  1928. 

  1929.     # --------------------------------------------------------------------------------------------------------

  1930. 

  1931.     @pyqtSlot(int)

  1932.     def slot_handleUpdateCallback(self, pluginId):

  1933.         pitem = self.getPluginItem(pluginId)

  1934. 

  1935.         if pitem is None:

  1936.             return

  1937. 

  1938.         wasCompacted = pitem.isCompacted()

  1939.         isCompacted  = wasCompacted

  1940. 

  1941.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  1942.         if not check:

  1943.             return

  1944.         isCompacted = bool(check == "true")

  1945. 

  1946.         if wasCompacted == isCompacted:

  1947.             return

  1948. 

  1949.         pitem.recreateWidget(True)

  1950. 

  1951.     # --------------------------------------------------------------------------------------------------------

  1952.     # MiniCanvas stuff

  1953. 

  1954.     @pyqtSlot()

  1955.     def slot_miniCanvasCheckAll(self):

  1956.         self.slot_miniCanvasCheckSize()

  1957.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1958.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1959. 

  1960.     @pyqtSlot()

  1961.     def slot_miniCanvasCheckSize(self):

  1962.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1963.             return

  1964. 

  1965.         currentIndex = self.ui.tabWidget.currentIndex()

  1966. 

  1967.         if currentIndex == 1:

  1968.             width  = self.ui.graphicsView.width()

  1969.             height = self.ui.graphicsView.height()

  1970.         else:

  1971.             self.ui.tabWidget.blockSignals(True)

  1972.             self.ui.tabWidget.setCurrentIndex(1)

  1973.             width  = self.ui.graphicsView.width()

  1974.             height = self.ui.graphicsView.height()

  1975.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1976.             self.ui.tabWidget.blockSignals(False)

  1977. 

  1978.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1979. 

  1980.     @pyqtSlot(float, float)

  1981.     def slot_miniCanvasMoved(self, xp, yp):

  1982.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1983.         vsb = self.ui.graphicsView.verticalScrollBar()

  1984.         hsb.setValue(xp * hsb.maximum())

  1985.         vsb.setValue(yp * vsb.maximum())

  1986.         self.updateCanvasInitialPos()

  1987. 

  1988.     # --------------------------------------------------------------------------------------------------------

  1989.     # Timers

  1990. 

  1991.     def startTimers(self):

  1992.         if self.fIdleTimerFast == 0:

  1993.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  1994. 

  1995.         if self.fIdleTimerSlow == 0:

  1996.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  1997. 

  1998.     def restartTimersIfNeeded(self):

  1999.         if self.fIdleTimerFast != 0:

  2000.             self.killTimer(self.fIdleTimerFast)

  2001.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2002. 

  2003.         if self.fIdleTimerSlow != 0:

  2004.             self.killTimer(self.fIdleTimerSlow)

  2005.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2006. 

  2007.     def killTimers(self):

  2008.         if self.fIdleTimerFast != 0:

  2009.             self.killTimer(self.fIdleTimerFast)

  2010.             self.fIdleTimerFast = 0

  2011. 

  2012.         if self.fIdleTimerSlow != 0:

  2013.             self.killTimer(self.fIdleTimerSlow)

  2014.             self.fIdleTimerSlow = 0

  2015. 

  2016.     # --------------------------------------------------------------------------------------------------------

  2017.     # Misc

  2018. 

  2019.     @pyqtSlot(int)

  2020.     def slot_tabChanged(self, index):

  2021.         if index != 1:

  2022.             return

  2023. 

  2024.         self.ui.graphicsView.setFocus()

  2025. 

  2026.     @pyqtSlot(int)

  2027.     def slot_handleReloadAllCallback(self, pluginId):

  2028.         if pluginId >= self.fPluginCount:

  2029.             return

  2030. 

  2031.         pitem = self.fPluginList[pluginId]

  2032.         if pitem is None:

  2033.             return

  2034. 

  2035.         pitem.recreateWidget()

  2036. 

  2037.     # --------------------------------------------------------------------------------------------------------

  2038. 

  2039.     @pyqtSlot(int, int, str)

  2040.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  2041.         # Error

  2042.         if value1 == 0:

  2043.             pass

  2044. 

  2045.         # Reply

  2046.         elif value1 == 1:

  2047.             self.fFirstEngineInit    = False

  2048.             self.fSessionManagerName = valueStr

  2049.             self.setProperWindowTitle()

  2050. 

  2051.         # Open

  2052.         elif value1 == 2:

  2053.             self.fClientName      = os.path.basename(valueStr)

  2054.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2055.             self.setProperWindowTitle()

  2056. 

  2057.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2058.             self.slot_engineStop(True)

  2059.             return

  2060. 

  2061.         # Save

  2062.         elif value1 == 3:

  2063.             self.saveProjectNow()

  2064. 

  2065.         # Session is Loaded

  2066.         elif value1 == 4:

  2067.             pass

  2068. 

  2069.         # Show Optional Gui

  2070.         elif value1 == 5:

  2071.             self.show()

  2072. 

  2073.         # Hide Optional Gui

  2074.         elif value1 == 6:

  2075.             self.hide()

  2076. 

  2077.         self.host.nsm_ready(value1)

  2078. 

  2079.     # --------------------------------------------------------------------------------------------------------

  2080. 

  2081.     def fixLogText(self, text):

  2082.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2083. 

  2084.     @pyqtSlot(int, int, int, float, str)

  2085.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  2086.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2087. 

  2088.     @pyqtSlot(str)

  2089.     def slot_handleInfoCallback(self, info):

  2090.         QMessageBox.information(self, "Information", info)

  2091. 

  2092.     @pyqtSlot(str)

  2093.     def slot_handleErrorCallback(self, error):

  2094.         QMessageBox.critical(self, "Error", error)

  2095. 

  2096.     @pyqtSlot()

  2097.     def slot_handleQuitCallback(self):

  2098.         pass # TODO

  2099. 

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

  2101. 

  2102.     @pyqtSlot()

  2103.     def slot_handleSIGUSR1(self):

  2104.         print("Got SIGUSR1 -> Saving project now")

  2105.         self.slot_fileSave()

  2106. 

  2107.     @pyqtSlot()

  2108.     def slot_handleSIGTERM(self):

  2109.         print("Got SIGTERM -> Closing now")

  2110.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2111.         self.slot_engineStop(True)

  2112. 

  2113.     # --------------------------------------------------------------------------------------------------------

  2114.     # Internal stuff

  2115. 

  2116.     def getExtraPtr(self, plugin):

  2117.         ptype = plugin['type']

  2118. 

  2119.         if ptype == PLUGIN_LADSPA:

  2120.             uniqueId = plugin['uniqueId']

  2121. 

  2122.             self.maybeLoadRDFs()

  2123. 

  2124.             for rdfItem in self.fLadspaRdfList:

  2125.                 if rdfItem.UniqueID == uniqueId:

  2126.                     return pointer(rdfItem)

  2127. 

  2128.         elif ptype == PLUGIN_SF2:

  2129.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2130.                 return self._true

  2131. 

  2132.         return None

  2133. 

  2134.     def maybeLoadRDFs(self):

  2135.         if not self.fLadspaRdfNeedsUpdate:

  2136.             return

  2137. 

  2138.         self.fLadspaRdfNeedsUpdate = False

  2139.         self.fLadspaRdfList = []

  2140. 

  2141.         if not haveLRDF:

  2142.             return

  2143. 

  2144.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2145.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2146. 

  2147.         if os.path.exists(frLadspaFile):

  2148.             frLadspa = open(frLadspaFile, 'r')

  2149. 

  2150.             try:

  2151.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2152.             except:

  2153.                 pass

  2154. 

  2155.             frLadspa.close()

  2156. 

  2157.     # --------------------------------------------------------------------------------------------------------

  2158. 

  2159.     def getPluginCount(self):

  2160.         return self.fPluginCount

  2161. 

  2162.     def getPluginItem(self, pluginId):

  2163.         if pluginId >= self.fPluginCount:

  2164.             return None

  2165. 

  2166.         pitem = self.fPluginList[pluginId]

  2167.         if pitem is None:

  2168.             return None

  2169.         #if False:

  2170.             #return CarlaRackItem(self, 0, False)

  2171. 

  2172.         return pitem

  2173. 

  2174.     def getPluginEditDialog(self, pluginId):

  2175.         if pluginId >= self.fPluginCount:

  2176.             return None

  2177. 

  2178.         pitem = self.fPluginList[pluginId]

  2179.         if pitem is None:

  2180.             return None

  2181.         if False:

  2182.             return PluginEdit(self, self.host, 0)

  2183. 

  2184.         return pitem.getEditDialog()

  2185. 

  2186.     def getPluginSlotWidget(self, pluginId):

  2187.         if pluginId >= self.fPluginCount:

  2188.             return None

  2189. 

  2190.         pitem = self.fPluginList[pluginId]

  2191.         if pitem is None:

  2192.             return None

  2193.         #if False:

  2194.             #return AbstractPluginSlot()

  2195. 

  2196.         return pitem.getWidget()

  2197. 

  2198.     # --------------------------------------------------------------------------------------------------------

  2199. 

  2200.     def waitForPendingEvents(self):

  2201.         pass

  2202. 

  2203.     # --------------------------------------------------------------------------------------------------------

  2204.     # show/hide event

  2205. 

  2206.     def showEvent(self, event):

  2207.         self.refreshTransport(True)

  2208.         QMainWindow.showEvent(self, event)

  2209. 

  2210.         # set our gui as parent for all plugins UIs

  2211.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2212.             if MACOS:

  2213.                 nsViewPtr = int(self.winId())

  2214.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2215.             else:

  2216.                 winIdStr = "%x" % int(self.winId())

  2217.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2218. 

  2219.     def hideEvent(self, event):

  2220.         # disable parent

  2221.         if not (self.host.isControl or self.host.isPlugin):

  2222.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2223. 

  2224.         QMainWindow.hideEvent(self, event)

  2225. 

  2226.     # --------------------------------------------------------------------------------------------------------

  2227.     # resize event

  2228. 

  2229.     def fixCanvasPreviewSize(self):

  2230.         self.ui.patchbay.resize(self.ui.rack.size())

  2231.         self.slot_miniCanvasCheckSize()

  2232. 

  2233.     def resizeEvent(self, event):

  2234.         QMainWindow.resizeEvent(self, event)

  2235. 

  2236.         if self.ui.tabWidget.currentIndex() != 1:

  2237.             size = self.ui.rack.size()

  2238.             self.ui.patchbay.resize(size)

  2239. 

  2240.         self.slot_miniCanvasCheckSize()

  2241. 

  2242.     # --------------------------------------------------------------------------------------------------------

  2243.     # timer event

  2244. 

  2245.     def idleFast(self):

  2246.         self.host.engine_idle()

  2247.         self.refreshTransport()

  2248. 

  2249.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2250.             return

  2251. 

  2252.         for pitem in self.fPluginList:

  2253.             if pitem is None:

  2254.                 break

  2255. 

  2256.             pitem.getWidget().idleFast()

  2257. 

  2258.         for pluginId in self.fSelectedPlugins:

  2259.             self.fPeaksCleared = False

  2260.             if self.ui.peak_in.isVisible():

  2261.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2262.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2263.             if self.ui.peak_out.isVisible():

  2264.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2265.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2266.             return

  2267. 

  2268.         if self.fPeaksCleared:

  2269.             return

  2270. 

  2271.         self.fPeaksCleared = True

  2272.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2273.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2274.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2275.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2276. 

  2277.     def idleSlow(self):

  2278.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2279.             return

  2280. 

  2281.         for pitem in self.fPluginList:

  2282.             if pitem is None:

  2283.                 break

  2284. 

  2285.             pitem.getWidget().idleSlow()

  2286. 

  2287.     def timerEvent(self, event):

  2288.         if event.timerId() == self.fIdleTimerFast:

  2289.             self.idleFast()

  2290. 

  2291.         elif event.timerId() == self.fIdleTimerSlow:

  2292.             self.idleSlow()

  2293. 

  2294.         QMainWindow.timerEvent(self, event)

  2295. 

  2296.     # --------------------------------------------------------------------------------------------------------

  2297.     # paint event

  2298. 

  2299.     #def paintEvent(self, event):

  2300.         #QMainWindow.paintEvent(self, event)

  2301. 

  2302.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2303.             #return

  2304. 

  2305.         #painter = QPainter(self)

  2306.         #painter.setBrush(QColor(36, 36, 36))

  2307.         #painter.setPen(QColor(62, 62, 62))

  2308.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2309. 

  2310.     # --------------------------------------------------------------------------------------------------------

  2311.     # close event

  2312. 

  2313.     def shouldIgnoreClose(self):

  2314.         if self.host.isControl or self.host.isPlugin:

  2315.             return False

  2316.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2317.             return False

  2318.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2319.             return QMessageBox.question(self, self.tr("Quit"),

  2320.                                               self.tr("Are you sure you want to quit Carla?"),

  2321.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2322.         return False

  2323. 

  2324.     def closeEvent(self, event):

  2325.         if self.shouldIgnoreClose():

  2326.             event.ignore()

  2327.             return

  2328. 

  2329.         self.killTimers()

  2330.         self.saveSettings()

  2331. 

  2332.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2333.             if not self.slot_engineStop(True):

  2334.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2335.                 event.ignore()

  2336.                 return

  2337. 

  2338.         QMainWindow.closeEvent(self, event)

  2339. 

  2340. # ------------------------------------------------------------------------------------------------

  2341. # Canvas callback

  2342. 

  2343. def canvasCallback(action, value1, value2, valueStr):

  2344.     host = gCarla.gui.host

  2345. 

  2346.     if action == patchcanvas.ACTION_GROUP_INFO:

  2347.         pass

  2348. 

  2349.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2350.         pass

  2351. 

  2352.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2353.         groupId = value1

  2354.         patchcanvas.splitGroup(groupId)

  2355.         gCarla.gui.updateMiniCanvasLater()

  2356. 

  2357.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2358.         groupId = value1

  2359.         patchcanvas.joinGroup(groupId)

  2360.         gCarla.gui.updateMiniCanvasLater()

  2361. 

  2362.     elif action == patchcanvas.ACTION_PORT_INFO:

  2363.         pass

  2364. 

  2365.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2366.         pass

  2367. 

  2368.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2369.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2370. 

  2371.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2372.             print("Connection failed:", host.get_last_error())

  2373. 

  2374.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2375.         connectionId = value1

  2376. 

  2377.         if not host.patchbay_disconnect(connectionId):

  2378.             print("Disconnect failed:", host.get_last_error())

  2379. 

  2380.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2381.         pluginId = value1

  2382. 

  2383.         if not host.clone_plugin(pluginId):

  2384.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2385.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2386. 

  2387.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2388.         pluginId = value1

  2389.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2390. 

  2391.         if pwidget is not None:

  2392.             pwidget.showEditDialog()

  2393. 

  2394.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2395.         pluginId = value1

  2396.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2397. 

  2398.         if pwidget is not None:

  2399.             pwidget.showRenameDialog()

  2400. 

  2401.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2402.         pluginId = value1

  2403.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2404. 

  2405.         if pwidget is not None:

  2406.             pwidget.showReplaceDialog()

  2407. 

  2408.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2409.         pluginId = value1

  2410. 

  2411.         if not host.remove_plugin(pluginId):

  2412.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2413.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2414. 

  2415.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2416.         pluginId = value1

  2417.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2418. 

  2419.         if pwidget is not None:

  2420.             pwidget.showCustomUI()

  2421. 

  2422.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2423.         gCarla.gui.showPluginActionsMenu()

  2424. 

  2425. # ------------------------------------------------------------------------------------------------------------

  2426. # Engine callback

  2427. 

  2428. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2429.     # kdevelop likes this :)

  2430.     if False: host = CarlaHostNull()

  2431. 

  2432.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2433.         host.processMode   = value1

  2434.         host.transportMode = value2

  2435.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2436.         host.processMode   = value1

  2437.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2438.         host.transportMode = value1

  2439. 

  2440.     valueStr = charPtrToString(valueStr)

  2441. 

  2442.     if action == ENGINE_CALLBACK_DEBUG:

  2443.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2444.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2445.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2446.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2447.         host.PluginRemovedCallback.emit(pluginId)

  2448.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2449.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2450.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2451.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2452.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2453.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2454.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2455.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2456.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2457.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2458.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2459.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2460.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2461.         host.ProgramChangedCallback.emit(pluginId, value1)

  2462.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2463.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2464.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2465.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2466.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2467.         host.UiStateChangedCallback.emit(pluginId, value1)

  2468.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2469.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2470.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2471.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2472.     elif action == ENGINE_CALLBACK_UPDATE:

  2473.         host.UpdateCallback.emit(pluginId)

  2474.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2475.         host.ReloadInfoCallback.emit(pluginId)

  2476.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2477.         host.ReloadParametersCallback.emit(pluginId)

  2478.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2479.         host.ReloadProgramsCallback.emit(pluginId)

  2480.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2481.         host.ReloadAllCallback.emit(pluginId)

  2482.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2483.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2484.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2485.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2486.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2487.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2488.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2489.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2490.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2491.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2492.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2493.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2494.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2495.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2496.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2497.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2498.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2499.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2500.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2501.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2502.         host.EngineStartedCallback.emit(value1, value2, value3, valueStr)

  2503.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2504.         host.EngineStoppedCallback.emit()

  2505.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2506.         host.ProcessModeChangedCallback.emit(value1)

  2507.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2508.         host.TransportModeChangedCallback.emit(value1)

  2509.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2510.         host.BufferSizeChangedCallback.emit(value1)

  2511.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2512.         host.SampleRateChangedCallback.emit(value3)

  2513.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2514.         host.ProjectLoadFinishedCallback.emit()

  2515.     elif action == ENGINE_CALLBACK_NSM:

  2516.         host.NSMCallback.emit(value1, value2, valueStr)

  2517.     elif action == ENGINE_CALLBACK_IDLE:

  2518.         QApplication.processEvents(QEventLoop.ExcludeUserInputEvents)

  2519.     elif action == ENGINE_CALLBACK_INFO:

  2520.         host.InfoCallback.emit(valueStr)

  2521.     elif action == ENGINE_CALLBACK_ERROR:

  2522.         host.ErrorCallback.emit(valueStr)

  2523.     elif action == ENGINE_CALLBACK_QUIT:

  2524.         host.QuitCallback.emit()

  2525. 

  2526. # ------------------------------------------------------------------------------------------------------------

  2527. # File callback

  2528. 

  2529. def fileCallback(ptr, action, isDir, title, filter):

  2530.     ret = ("", "") if config_UseQt5 else ""

  2531. 

  2532.     title  = charPtrToString(title)

  2533.     filter = charPtrToString(filter)

  2534. 

  2535.     if action == FILE_CALLBACK_OPEN:

  2536.         ret = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2537.     elif action == FILE_CALLBACK_SAVE:

  2538.         ret = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2539. 

  2540.     if config_UseQt5:

  2541.         ret = ret[0]

  2542.     if not ret:

  2543.         return None

  2544. 

  2545.     # FIXME

  2546.     global fileRet

  2547.     fileRet = c_char_p(ret.encode("utf-8"))

  2548.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2549.     return retval.contents.value

  2550. 

  2551. # ------------------------------------------------------------------------------------------------------------

  2552. # Init host

  2553. 

  2554. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2555.     pathBinaries, pathResources = getPaths(libPrefix)

  2556. 

  2557.     # --------------------------------------------------------------------------------------------------------

  2558.     # Check if we should open main lib as local or global

  2559. 

  2560.     settings = QSettings("falkTX", "Carla2")

  2561. 

  2562.     try:

  2563.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2564.     except:

  2565.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2566. 

  2567.     # --------------------------------------------------------------------------------------------------------

  2568.     # Fail if binary dir is not found

  2569. 

  2570.     if not os.path.exists(pathBinaries):

  2571.         if failError:

  2572.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2573.             sys.exit(1)

  2574.         return

  2575. 

  2576.     # --------------------------------------------------------------------------------------------------------

  2577.     # Set Carla library name

  2578. 

  2579.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2580.     libname   = os.path.join(pathBinaries, libname)

  2581.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2582. 

  2583.     # --------------------------------------------------------------------------------------------------------

  2584.     # Print info

  2585. 

  2586.     print("Carla %s started, status:" % VERSION)

  2587.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2588.     print("  Qt version:     %s" % qVersion())

  2589.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2590.     print("  Binary dir:     %s" % pathBinaries)

  2591.     print("  Resources dir:  %s" % pathResources)

  2592. 

  2593.     # --------------------------------------------------------------------------------------------------------

  2594.     # Init host

  2595. 

  2596.     if failError:

  2597.         # no try

  2598.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2599.     else:

  2600.         try:

  2601.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2602.         except:

  2603.             host = CarlaHostQtNull()

  2604. 

  2605.     host.isControl = isControl

  2606.     host.isPlugin  = isPlugin

  2607. 

  2608.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2609.     host.set_file_callback(fileCallback)

  2610. 

  2611.     # If it's a plugin the paths are already set

  2612.     if not isPlugin:

  2613.         host.pathBinaries  = pathBinaries

  2614.         host.pathResources = pathResources

  2615.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2616.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2617. 

  2618.         if not isControl:

  2619.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2620. 

  2621.     # --------------------------------------------------------------------------------------------------------

  2622.     # Init utils

  2623. 

  2624.     gCarla.utils = CarlaUtils(utilsname)

  2625.     gCarla.utils.set_process_name(os.path.basename(initName))

  2626. 

  2627.     try:

  2628.         sys.stdout.flush()

  2629.     except:

  2630.         pass

  2631. 

  2632.     sys.stdout = CarlaPrint(False)

  2633.     sys.stderr = CarlaPrint(True)

  2634. 

  2635.     if config_UseQt5:

  2636.         sys.excepthook = sys_excepthook

  2637. 

  2638.     # --------------------------------------------------------------------------------------------------------

  2639.     # Done

  2640. 

  2641.     return host

  2642. 

  2643. # ------------------------------------------------------------------------------------------------------------

  2644. # Load host settings

  2645. 

  2646. def loadHostSettings(host):

  2647.     # kdevelop likes this :)

  2648.     if False: host = CarlaHostNull()

  2649. 

  2650.     settings = QSettings("falkTX", "Carla2")

  2651. 

  2652.     try:

  2653.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2654.     except:

  2655.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2656. 

  2657.     try:

  2658.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2659.     except:

  2660.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2661. 

  2662.     try:

  2663.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2664.     except:

  2665.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2666. 

  2667.     try:

  2668.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2669.     except:

  2670.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2671. 

  2672.     try:

  2673.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2674.     except:

  2675.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2676. 

  2677.     try:

  2678.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2679.     except:

  2680.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2681. 

  2682.     try:

  2683.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2684.     except:

  2685.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2686. 

  2687.     try:

  2688.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2689.     except:

  2690.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2691. 

  2692.     try:

  2693.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2694.     except:

  2695.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2696. 

  2697.     try:

  2698.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2699.     except:

  2700.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2701. 

  2702.     try:

  2703.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2704.     except:

  2705.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2706. 

  2707.     try:

  2708.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2709.     except:

  2710.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2711. 

  2712.     try:

  2713.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2714.     except:

  2715.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2716. 

  2717.     if host.isPlugin:

  2718.         return

  2719. 

  2720.     # enums

  2721.     if host.audioDriverForced is None:

  2722.         try:

  2723.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2724.         except:

  2725.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2726. 

  2727.     if not host.processModeForced:

  2728.         try:

  2729.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2730.         except:

  2731.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2732. 

  2733.     host.nextProcessMode = host.processMode

  2734. 

  2735.     # --------------------------------------------------------------------------------------------------------

  2736.     # fix things if needed

  2737. 

  2738.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2739.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2740.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2741. 

  2742.     if gCarla.nogui:

  2743.         host.showLogs = False

  2744. 

  2745.     # --------------------------------------------------------------------------------------------------------

  2746.     # run headless host now if nogui option enabled

  2747. 

  2748.     if gCarla.nogui:

  2749.         runHostWithoutUI(host)

  2750. 

  2751. # ------------------------------------------------------------------------------------------------------------

  2752. # Set host settings

  2753. 

  2754. def setHostSettings(host):

  2755.     # kdevelop likes this :)

  2756.     if False: host = CarlaHostNull()

  2757. 

  2758.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2759.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2760.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2761.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2762.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2763.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2764.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2765. 

  2766.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2767.         return

  2768. 

  2769.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2770.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2771.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2772. 

  2773. # ------------------------------------------------------------------------------------------------------------

  2774. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2775. 

  2776. def setEngineSettings(host):

  2777.     # kdevelop likes this :)

  2778.     if False: host = CarlaHostNull()

  2779. 

  2780.     # --------------------------------------------------------------------------------------------------------

  2781.     # do nothing if control

  2782. 

  2783.     if host.isControl:

  2784.         return "Control"

  2785. 

  2786.     # --------------------------------------------------------------------------------------------------------

  2787. 

  2788.     settings = QSettings("falkTX", "Carla2")

  2789. 

  2790.     # --------------------------------------------------------------------------------------------------------

  2791.     # main settings

  2792. 

  2793.     setHostSettings(host)

  2794. 

  2795.     # --------------------------------------------------------------------------------------------------------

  2796.     # plugin paths

  2797. 

  2798.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2799.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2800.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2801.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2802.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2803.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2804. 

  2805.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2806.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2807.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2808.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2809.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2810.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2811. 

  2812.     # --------------------------------------------------------------------------------------------------------

  2813.     # don't continue if plugin

  2814. 

  2815.     if host.isPlugin:

  2816.         return "Plugin"

  2817. 

  2818.     # --------------------------------------------------------------------------------------------------------

  2819.     # wine settings

  2820. 

  2821.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2822.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2823.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2824.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2825.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2826.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2827. 

  2828.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2829.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2830.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2831.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2832.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2833.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2834. 

  2835.     # --------------------------------------------------------------------------------------------------------

  2836.     # driver and device settings

  2837. 

  2838.     # driver name

  2839.     if host.audioDriverForced is not None:

  2840.         audioDriver = host.audioDriverForced

  2841.     else:

  2842.         try:

  2843.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2844.         except:

  2845.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2846. 

  2847.     # driver options

  2848.     try:

  2849.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2850.     except:

  2851.         audioDevice = ""

  2852. 

  2853.     try:

  2854.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2855.     except:

  2856.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2857. 

  2858.     try:

  2859.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2860.     except:

  2861.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2862. 

  2863.     try:

  2864.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  2865.     except:

  2866.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  2867. 

  2868.     # Only setup audio things if engine is not running

  2869.     if not host.is_engine_running():

  2870.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  2871. 

  2872.         if not audioDriver.startswith("JACK"):

  2873.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2874.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2875.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  2876. 

  2877.     # --------------------------------------------------------------------------------------------------------

  2878.     # fix things if needed

  2879. 

  2880.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2881.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2882.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2883. 

  2884.     # --------------------------------------------------------------------------------------------------------

  2885.     # return selected driver name

  2886. 

  2887.     return audioDriver

  2888. 

  2889. # ------------------------------------------------------------------------------------------------------------

  2890. # Run Carla without showing UI

  2891. 

  2892. def runHostWithoutUI(host):

  2893.     # kdevelop likes this :)

  2894.     if False: host = CarlaHostNull()

  2895. 

  2896.     # --------------------------------------------------------------------------------------------------------

  2897.     # Some initial checks

  2898. 

  2899.     if not gCarla.nogui:

  2900.         return

  2901. 

  2902.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2903. 

  2904.     if not projectFile:

  2905.         print("Carla no-gui mode can only be used together with a project file.")

  2906.         sys.exit(1)

  2907. 

  2908.     # --------------------------------------------------------------------------------------------------------

  2909.     # Additional imports

  2910. 

  2911.     from time import sleep

  2912. 

  2913.     # --------------------------------------------------------------------------------------------------------

  2914.     # Init engine

  2915. 

  2916.     audioDriver = setEngineSettings(host)

  2917.     if not host.engine_init(audioDriver, "Carla"):

  2918.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2919.         sys.exit(1)

  2920. 

  2921.     if not host.load_project(projectFile):

  2922.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2923.         host.engine_close()

  2924.         sys.exit(1)

  2925. 

  2926.     # --------------------------------------------------------------------------------------------------------

  2927.     # Idle

  2928. 

  2929.     print("Carla ready!")

  2930. 

  2931.     while host.is_engine_running() and not gCarla.term:

  2932.         host.engine_idle()

  2933.         sleep(0.0333) # 30 Hz

  2934. 

  2935.     # --------------------------------------------------------------------------------------------------------

  2936.     # Stop

  2937. 

  2938.     host.engine_close()

  2939.     sys.exit(0)

  2940. 

  2941. # ------------------------------------------------------------------------------------------------------------