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

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  1. #!/usr/bin/env python3

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

  3. 

  4. # Carla host code

  5. # Copyright (C) 2011-2018 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 widgets.digitalpeakmeter import DigitalPeakMeter

  51. from widgets.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 changePluginColor(self, pluginId, color, colorStr):

  590.         if pluginId > self.fPluginCount:

  591.             return

  592. 

  593.         pitem = self.fPluginList[pluginId]

  594. 

  595.         if pitem is None:

  596.             return

  597. 

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

  599.         pitem.recreateWidget(newColor = color)

  600. 

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

  602.         if pluginId > self.fPluginCount:

  603.             return

  604. 

  605.         pitem = self.fPluginList[pluginId]

  606. 

  607.         if pitem is None:

  608.             return

  609. 

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

  611.         pitem.recreateWidget(newSkin = skin)

  612. 

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

  614.         if pluginIdA == pluginIdB:

  615.             return

  616.         if pluginIdA < 0 or pluginIdB < 0:

  617.             return

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

  619.             return

  620. 

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

  622. 

  623.         itemA = self.fPluginList[pluginIdA]

  624.         compactA = itemA.isCompacted()

  625.         guiShownA = itemA.isGuiShown()

  626. 

  627.         itemB = self.fPluginList[pluginIdB]

  628.         compactB = itemB.isCompacted()

  629.         guiShownB = itemB.isGuiShown()

  630. 

  631.         itemA.setPluginId(pluginIdA)

  632.         itemA.recreateWidget2(compactB, guiShownB)

  633. 

  634.         itemB.setPluginId(pluginIdB)

  635.         itemB.recreateWidget2(compactA, guiShownA)

  636. 

  637.         self.slot_canvasRefresh()

  638. 

  639.     def setLoadRDFsNeeded(self):

  640.         self.fLadspaRdfNeedsUpdate = True

  641. 

  642.     def setProperWindowTitle(self):

  643.         title = self.fClientName

  644. 

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

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

  647.         if self.fSessionManagerName:

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

  649. 

  650.         self.setWindowTitle(title)

  651. 

  652.     # --------------------------------------------------------------------------------------------------------

  653.     # Files

  654. 

  655.     def makeExtraFilename(self):

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

  657. 

  658.     def loadProjectNow(self):

  659.         if not self.fProjectFilename:

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

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

  662.             return

  663. 

  664.         self.projectLoadingStarted()

  665.         self.fIsProjectLoading = True

  666.         self.host.load_project(self.fProjectFilename)

  667. 

  668.         # Project finished loading is sent by engine

  669. 

  670.     def loadProjectLater(self, filename):

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

  672.         self.setProperWindowTitle()

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

  674. 

  675.     def saveProjectNow(self):

  676.         if not self.fProjectFilename:

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

  678. 

  679.         self.host.save_project(self.fProjectFilename)

  680. 

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

  682.             json.dump({

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

  684.             }, fh)

  685. 

  686.     def projectLoadingStarted(self):

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

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

  689. 

  690.     def projectLoadingFinished(self):

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

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

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

  694. 

  695.         extrafile = self.makeExtraFilename()

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

  697.             return

  698. 

  699.         try:

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

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

  702.         except:

  703.             return

  704. 

  705.         patchcanvas.restoreGroupPositions(canvasdata)

  706. 

  707.     # --------------------------------------------------------------------------------------------------------

  708.     # Files (menu actions)

  709. 

  710.     @pyqtSlot()

  711.     def slot_fileNew(self):

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

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

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

  715.             return

  716. 

  717.         self.pluginRemoveAll()

  718.         self.fProjectFilename = ""

  719.         self.setProperWindowTitle()

  720. 

  721.     @pyqtSlot()

  722.     def slot_fileOpen(self):

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

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

  725. 

  726.         if config_UseQt5:

  727.             filename = filename[0]

  728.         if not filename:

  729.             return

  730. 

  731.         newFile = True

  732. 

  733.         if self.fPluginCount > 0:

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

  735.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  737. 

  738.         if newFile:

  739.             self.pluginRemoveAll()

  740.             self.fProjectFilename = filename

  741.             self.setProperWindowTitle()

  742.             self.loadProjectNow()

  743.         else:

  744.             filenameOld = self.fProjectFilename

  745.             self.fProjectFilename = filename

  746.             self.loadProjectNow()

  747.             self.fProjectFilename = filenameOld

  748. 

  749.     @pyqtSlot()

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

  751.         if self.fProjectFilename and not saveAs:

  752.             return self.saveProjectNow()

  753. 

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

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

  756. 

  757.         if config_UseQt5:

  758.             filename = filename[0]

  759.         if not filename:

  760.             return

  761. 

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

  763.             filename += ".carxp"

  764. 

  765.         if self.fProjectFilename != filename:

  766.             self.fProjectFilename = filename

  767.             self.setProperWindowTitle()

  768. 

  769.         self.saveProjectNow()

  770. 

  771.     @pyqtSlot()

  772.     def slot_fileSaveAs(self):

  773.         self.slot_fileSave(True)

  774. 

  775.     @pyqtSlot()

  776.     def slot_loadProjectNow(self):

  777.         self.loadProjectNow()

  778. 

  779.     # --------------------------------------------------------------------------------------------------------

  780.     # Engine (menu actions)

  781. 

  782.     @pyqtSlot()

  783.     def slot_engineStart(self):

  784.         audioDriver = setEngineSettings(self.host)

  785.         firstInit   = self.fFirstEngineInit

  786. 

  787.         self.fFirstEngineInit = False

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

  789. 

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

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

  792.                 settings = QSettings()

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

  794.                 del settings

  795.                 self.host.transport_bpm(lastBpm)

  796.             return

  797. 

  798.         elif firstInit:

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

  800.             return

  801. 

  802.         audioError = self.host.get_last_error()

  803. 

  804.         if audioError:

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

  806.         else:

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

  808. 

  809.     @pyqtSlot()

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

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

  812. 

  813.         if self.fPluginCount == 0:

  814.             self.engineStopFinal()

  815.             return True

  816. 

  817.         if not forced:

  818.             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"

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

  820.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  821.             if ask != QMessageBox.Yes:

  822.                 return False

  823. 

  824.         return self.slot_engineStopTryAgain()

  825. 

  826.     @pyqtSlot()

  827.     def slot_engineStopTryAgain(self):

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

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

  830.             return False

  831. 

  832.         self.engineStopFinal()

  833.         return True

  834. 

  835.     def engineStopFinal(self):

  836.         self.killTimers()

  837.         self.removeAllPlugins()

  838. 

  839.         if self.host.is_engine_running():

  840.             self.host.remove_all_plugins()

  841. 

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

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

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

  845. 

  846.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  847.             self.close()

  848.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  849.             self.slot_engineStart()

  850.             self.loadProjectNow()

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

  852. 

  853.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  854. 

  855.     # --------------------------------------------------------------------------------------------------------

  856.     # Engine (host callbacks)

  857. 

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

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

  860.         self.fSampleRate = sampleRate

  861. 

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

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

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

  865. 

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

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

  868. 

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

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

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

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

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

  874.         else:

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

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

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

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

  879. 

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

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

  882. 

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

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

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

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

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

  888.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  889. 

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

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

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

  893. 

  894.         self.refreshTransport(True)

  895. 

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

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

  898. 

  899.         self.startTimers()

  900. 

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

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

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

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

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

  906. 

  907.     @pyqtSlot()

  908.     def slot_handleEngineStoppedCallback(self):

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

  910. 

  911.         patchcanvas.clear()

  912.         self.killTimers()

  913. 

  914.         # just in case

  915.         self.removeAllPlugins()

  916. 

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

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

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

  920. 

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

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

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

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

  925. 

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

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

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

  929. 

  930.     @pyqtSlot(float)

  931.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  932.         self.fSampleRate = newSampleRate

  933.         self.refreshTransport(True)

  934. 

  935.     @pyqtSlot()

  936.     def slot_handleProjectLoadFinishedCallback(self):

  937.         self.fIsProjectLoading = False

  938.         self.projectLoadingFinished()

  939. 

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

  941.     # Plugins

  942. 

  943.     def removeAllPlugins(self):

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

  945.         patchcanvas.handleAllPluginsRemoved()

  946. 

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

  948.             pass

  949. 

  950.         self.clearSideStuff()

  951. 

  952.         for pitem in self.fPluginList:

  953.             if pitem is None:

  954.                 continue

  955. 

  956.             pitem.close()

  957.             del pitem

  958. 

  959.         self.fPluginCount = 0

  960.         self.fPluginList  = []

  961. 

  962.     # --------------------------------------------------------------------------------------------------------

  963.     # Plugins (menu actions)

  964. 

  965.     def showAddPluginDialog(self):

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

  967. 

  968.         if not dialog.exec_():

  969.             return

  970. 

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

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

  973.             return

  974. 

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

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

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

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

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

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

  981. 

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

  983. 

  984.     def showAddJackAppDialog(self):

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

  986. 

  987.         if not dialog.exec_():

  988.             return

  989. 

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

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

  992.             return

  993. 

  994.         return dialog.getCommandAndFlags()

  995. 

  996.     @pyqtSlot()

  997.     def showPluginActionsMenu(self):

  998.         menu = QMenu(self)

  999. 

  1000.         if config_UseQt5:

  1001.             menu.addSection("Plugins")

  1002.         else:

  1003.             # fake section

  1004.             act  = menu.addAction("  Plugins")

  1005.             font = act.font()

  1006.             font.setBold(True)

  1007.             act.setFont(font)

  1008.             act.setEnabled(False)

  1009.             menu.addSeparator()

  1010. 

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

  1012.         menu.addAction(self.ui.act_plugin_remove_all)

  1013. 

  1014.         if config_UseQt5:

  1015.             menu.addSection("All plugins (macros)")

  1016.         else:

  1017.             # fake space

  1018.             act  = menu.addAction(" ")

  1019.             font = act.font()

  1020.             font.setBold(True)

  1021.             font.setPointSize(font.pointSize()/2)

  1022.             act.setEnabled(False)

  1023. 

  1024.             # fake section

  1025.             act  = menu.addAction("  All plugins (macros)")

  1026.             font = act.font()

  1027.             font.setBold(True)

  1028.             act.setFont(font)

  1029.             act.setEnabled(False)

  1030.             menu.addSeparator()

  1031. 

  1032.         menu.addAction(self.ui.act_plugins_enable)

  1033.         menu.addAction(self.ui.act_plugins_disable)

  1034.         menu.addSeparator()

  1035.         menu.addAction(self.ui.act_plugins_volume100)

  1036.         menu.addAction(self.ui.act_plugins_mute)

  1037.         menu.addSeparator()

  1038.         menu.addAction(self.ui.act_plugins_wet100)

  1039.         menu.addAction(self.ui.act_plugins_bypass)

  1040.         menu.addSeparator()

  1041.         menu.addAction(self.ui.act_plugins_center)

  1042.         menu.addSeparator()

  1043.         menu.addAction(self.ui.act_plugins_compact)

  1044.         menu.addAction(self.ui.act_plugins_expand)

  1045. 

  1046.         menu.exec_(QCursor.pos())

  1047. 

  1048.     @pyqtSlot()

  1049.     def slot_pluginAdd(self):

  1050.         data = self.showAddPluginDialog()

  1051. 

  1052.         if data is None:

  1053.             return

  1054. 

  1055.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1056. 

  1057.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, 0x0):

  1058.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"), self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1059. 

  1060.     @pyqtSlot()

  1061.     def slot_confirmRemoveAll(self):

  1062.         if self.fPluginCount == 0:

  1063.             return

  1064. 

  1065.         if QMessageBox.question(self, self.tr("Remove All"),

  1066.                                       self.tr("Are you sure you want to remove all plugins?"),

  1067.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1068.             return

  1069. 

  1070.         self.pluginRemoveAll()

  1071. 

  1072.     def pluginRemoveAll(self):

  1073.         if self.fPluginCount == 0:

  1074.             return

  1075. 

  1076.         # FIXME - this is not working

  1077.         # removing a plugin causes flicker, the rack-list becomes empty for some time

  1078.         # this breaks the remove-all animation, so don't bother using it

  1079.         if False and not self.host.isPlugin:

  1080.             self.projectLoadingStarted()

  1081. 

  1082.             app = QApplication.instance()

  1083.             app.processEvents()

  1084. 

  1085.             for i in reversed(range(self.fPluginCount)):

  1086.                 self.host.remove_plugin(i)

  1087.                 app.processEvents()

  1088. 

  1089.             self.projectLoadingFinished()

  1090. 

  1091.         self.fCurrentlyRemovingAllPlugins = True

  1092.         ok = self.host.remove_all_plugins()

  1093.         self.fCurrentlyRemovingAllPlugins = False

  1094. 

  1095.         if ok:

  1096.             self.removeAllPlugins()

  1097.         else:

  1098.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1099.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1100. 

  1101.         self.fCurrentlyRemovingAllPlugins = False

  1102. 

  1103.     @pyqtSlot()

  1104.     def slot_jackAppAdd(self):

  1105.         data = self.showAddJackAppDialog()

  1106. 

  1107.         if data is None:

  1108.             return

  1109. 

  1110.         filename, name, label = data

  1111. 

  1112.         if not filename:

  1113.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1114.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1115.             return

  1116. 

  1117.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, 0x0):

  1118.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1119.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1120. 

  1121.     # --------------------------------------------------------------------------------------------------------

  1122.     # Plugins (macros)

  1123. 

  1124.     @pyqtSlot()

  1125.     def slot_pluginsEnable(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().setActive(True, True, True)

  1134. 

  1135.     @pyqtSlot()

  1136.     def slot_pluginsDisable(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().setActive(False, True, True)

  1145. 

  1146.     @pyqtSlot()

  1147.     def slot_pluginsVolume100(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_VOLUME, 1.0)

  1156. 

  1157.     @pyqtSlot()

  1158.     def slot_pluginsMute(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_VOLUME, 0.0)

  1167. 

  1168.     @pyqtSlot()

  1169.     def slot_pluginsWet100(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(PLUGIN_CAN_DRYWET, 1.0)

  1178. 

  1179.     @pyqtSlot()

  1180.     def slot_pluginsBypass(self):

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

  1182.             return

  1183. 

  1184.         for pitem in self.fPluginList:

  1185.             if pitem is None:

  1186.                 break

  1187. 

  1188.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1189. 

  1190.     @pyqtSlot()

  1191.     def slot_pluginsCenter(self):

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

  1193.             return

  1194. 

  1195.         for pitem in self.fPluginList:

  1196.             if pitem is None:

  1197.                 break

  1198. 

  1199.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1200.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1201.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1202. 

  1203.     @pyqtSlot()

  1204.     def slot_pluginsCompact(self):

  1205.         for pitem in self.fPluginList:

  1206.             if pitem is None:

  1207.                 break

  1208.             pitem.compact()

  1209. 

  1210.     @pyqtSlot()

  1211.     def slot_pluginsExpand(self):

  1212.         for pitem in self.fPluginList:

  1213.             if pitem is None:

  1214.                 break

  1215.             pitem.expand()

  1216. 

  1217.     # --------------------------------------------------------------------------------------------------------

  1218.     # Plugins (host callbacks)

  1219. 

  1220.     @pyqtSlot(int, str)

  1221.     def slot_handlePluginAddedCallback(self, pluginId, pluginName):

  1222.         pitem = self.ui.listWidget.createItem(pluginId)

  1223. 

  1224.         self.fPluginList.append(pitem)

  1225.         self.fPluginCount += 1

  1226. 

  1227.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1228. 

  1229.     @pyqtSlot(int)

  1230.     def slot_handlePluginRemovedCallback(self, pluginId):

  1231.         patchcanvas.handlePluginRemoved(pluginId)

  1232. 

  1233.         if pluginId in self.fSelectedPlugins:

  1234.             self.clearSideStuff()

  1235. 

  1236.         pitem = self.getPluginItem(pluginId)

  1237. 

  1238.         self.fPluginCount -= 1

  1239.         self.fPluginList.pop(pluginId)

  1240.         self.ui.listWidget.takeItem(pluginId)

  1241. 

  1242.         if pitem is not None:

  1243.             pitem.close()

  1244.             del pitem

  1245. 

  1246.         # push all plugins 1 slot back

  1247.         for i in range(pluginId, self.fPluginCount):

  1248.             pitem = self.fPluginList[i]

  1249.             pitem.setPluginId(i)

  1250. 

  1251.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1252. 

  1253.     # --------------------------------------------------------------------------------------------------------

  1254.     # Canvas

  1255. 

  1256.     def clearSideStuff(self):

  1257.         self.scene.clearSelection()

  1258. 

  1259.         self.fSelectedPlugins = []

  1260. 

  1261.         self.ui.keyboard.allNotesOff(False)

  1262.         self.ui.scrollArea.setEnabled(False)

  1263. 

  1264.         self.fPeaksCleared = True

  1265.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1266.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1267.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1268.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1269. 

  1270.     def setupCanvas(self):

  1271.         pOptions = patchcanvas.options_t()

  1272.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1273.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1274.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1275.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1276.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1277. 

  1278.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1279.             pOptions.eyecandy      = patchcanvas.EYECANDY_FULL

  1280.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1281.             pOptions.eyecandy      = patchcanvas.EYECANDY_SMALL

  1282.         else:

  1283.             pOptions.eyecandy      = patchcanvas.EYECANDY_NONE

  1284. 

  1285.         pFeatures = patchcanvas.features_t()

  1286.         pFeatures.group_info   = False

  1287.         pFeatures.group_rename = False

  1288.         pFeatures.port_info    = False

  1289.         pFeatures.port_rename  = False

  1290.         pFeatures.handle_group_pos = True

  1291. 

  1292.         patchcanvas.setOptions(pOptions)

  1293.         patchcanvas.setFeatures(pFeatures)

  1294.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1295. 

  1296.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1297. 

  1298.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1299.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1300.             self.fCanvasHeight = int(tryCanvasSize[1])

  1301.         else:

  1302.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1303.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1304. 

  1305.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1306.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1307.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1308. 

  1309.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1310.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1311. 

  1312.     def updateCanvasInitialPos(self):

  1313.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1314.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1315.         patchcanvas.setInitialPos(x, y)

  1316. 

  1317.     def updateMiniCanvasLater(self):

  1318.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1319. 

  1320.     # --------------------------------------------------------------------------------------------------------

  1321.     # Canvas (menu actions)

  1322. 

  1323.     @pyqtSlot()

  1324.     def slot_canvasShowInternal(self):

  1325.         self.fExternalPatchbay = False

  1326.         self.ui.act_canvas_show_internal.blockSignals(True)

  1327.         self.ui.act_canvas_show_external.blockSignals(True)

  1328.         self.ui.act_canvas_show_internal.setChecked(True)

  1329.         self.ui.act_canvas_show_external.setChecked(False)

  1330.         self.ui.act_canvas_show_internal.blockSignals(False)

  1331.         self.ui.act_canvas_show_external.blockSignals(False)

  1332.         self.slot_canvasRefresh()

  1333. 

  1334.     @pyqtSlot()

  1335.     def slot_canvasShowExternal(self):

  1336.         self.fExternalPatchbay = True

  1337.         self.ui.act_canvas_show_internal.blockSignals(True)

  1338.         self.ui.act_canvas_show_external.blockSignals(True)

  1339.         self.ui.act_canvas_show_internal.setChecked(False)

  1340.         self.ui.act_canvas_show_external.setChecked(True)

  1341.         self.ui.act_canvas_show_internal.blockSignals(False)

  1342.         self.ui.act_canvas_show_external.blockSignals(False)

  1343.         self.slot_canvasRefresh()

  1344. 

  1345.     @pyqtSlot()

  1346.     def slot_canvasArrange(self):

  1347.         patchcanvas.arrange()

  1348. 

  1349.     @pyqtSlot()

  1350.     def slot_canvasRefresh(self):

  1351.         patchcanvas.clear()

  1352. 

  1353.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and (self.host.isControl or self.host.isPlugin):

  1354.             return

  1355. 

  1356.         if self.host.is_engine_running():

  1357.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1358. 

  1359.         self.updateMiniCanvasLater()

  1360. 

  1361.     @pyqtSlot()

  1362.     def slot_canvasZoomFit(self):

  1363.         self.scene.zoom_fit()

  1364. 

  1365.     @pyqtSlot()

  1366.     def slot_canvasZoomIn(self):

  1367.         self.scene.zoom_in()

  1368. 

  1369.     @pyqtSlot()

  1370.     def slot_canvasZoomOut(self):

  1371.         self.scene.zoom_out()

  1372. 

  1373.     @pyqtSlot()

  1374.     def slot_canvasZoomReset(self):

  1375.         self.scene.zoom_reset()

  1376. 

  1377.     @pyqtSlot()

  1378.     def slot_canvasSaveImage(self):

  1379.         newPath = QFileDialog.getSaveFileName(self, self.tr("Save Image"), filter=self.tr("PNG Image (*.png);;JPEG Image (*.jpg)"))

  1380. 

  1381.         if config_UseQt5:

  1382.             newPath = newPath[0]

  1383.         if not newPath:

  1384.             return

  1385. 

  1386.         self.scene.clearSelection()

  1387. 

  1388.         if newPath.lower().endswith((".jpg", ".jpeg")):

  1389.             imgFormat = "JPG"

  1390.         elif newPath.lower().endswith((".png",)):

  1391.             imgFormat = "PNG"

  1392.         else:

  1393.             # File-dialog may not auto-add the extension

  1394.             imgFormat = "PNG"

  1395.             newPath  += ".png"

  1396. 

  1397.         self.fExportImage = QImage(self.scene.sceneRect().width(), self.scene.sceneRect().height(), QImage.Format_RGB32)

  1398.         painter = QPainter(self.fExportImage)

  1399.         painter.save()

  1400.         painter.setRenderHint(QPainter.Antialiasing) # TODO - set true, cleanup this

  1401.         painter.setRenderHint(QPainter.TextAntialiasing)

  1402.         self.scene.render(painter)

  1403.         self.fExportImage.save(newPath, imgFormat, 100)

  1404.         painter.restore()

  1405. 

  1406.     # --------------------------------------------------------------------------------------------------------

  1407.     # Canvas (canvas callbacks)

  1408. 

  1409.     @pyqtSlot(int, int, QPointF)

  1410.     def slot_canvasItemMoved(self, group_id, split_mode, pos):

  1411.         self.updateMiniCanvasLater()

  1412. 

  1413.     @pyqtSlot(float)

  1414.     def slot_canvasScaleChanged(self, scale):

  1415.         self.ui.miniCanvasPreview.setViewScale(scale)

  1416. 

  1417.     @pyqtSlot(list)

  1418.     def slot_canvasPluginSelected(self, pluginList):

  1419.         self.ui.keyboard.allNotesOff(False)

  1420.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1421.         self.fSelectedPlugins = pluginList

  1422. 

  1423.     # --------------------------------------------------------------------------------------------------------

  1424.     # Canvas (host callbacks)

  1425. 

  1426.     @pyqtSlot(int, int, int, str)

  1427.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1428.         pcSplit = patchcanvas.SPLIT_UNDEF

  1429.         pcIcon  = patchcanvas.ICON_APPLICATION

  1430. 

  1431.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1432.             pcIcon = patchcanvas.ICON_PLUGIN

  1433.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1434.             pcIcon = patchcanvas.ICON_HARDWARE

  1435.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1436.             pass

  1437.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1438.             pcIcon = patchcanvas.ICON_DISTRHO

  1439.         elif clientIcon == PATCHBAY_ICON_FILE:

  1440.             pcIcon = patchcanvas.ICON_FILE

  1441. 

  1442.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1443. 

  1444.         self.updateMiniCanvasLater()

  1445. 

  1446.         if pluginId < 0:

  1447.             return

  1448.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1449.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1450.             return

  1451. 

  1452.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1453.             hasCustomUI = False

  1454.         else:

  1455.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1456. 

  1457.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1458. 

  1459.     @pyqtSlot(int)

  1460.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1461.         patchcanvas.removeGroup(clientId)

  1462.         self.updateMiniCanvasLater()

  1463. 

  1464.     @pyqtSlot(int, str)

  1465.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1466.         patchcanvas.renameGroup(clientId, newClientName)

  1467.         self.updateMiniCanvasLater()

  1468. 

  1469.     @pyqtSlot(int, int, int)

  1470.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1471.         pcIcon = patchcanvas.ICON_APPLICATION

  1472. 

  1473.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1474.             pcIcon = patchcanvas.ICON_PLUGIN

  1475.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1476.             pcIcon = patchcanvas.ICON_HARDWARE

  1477.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1478.             pass

  1479.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1480.             pcIcon = patchcanvas.ICON_DISTRHO

  1481.         elif clientIcon == PATCHBAY_ICON_FILE:

  1482.             pcIcon = patchcanvas.ICON_FILE

  1483. 

  1484.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1485.         self.updateMiniCanvasLater()

  1486. 

  1487.         if pluginId < 0:

  1488.             return

  1489.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1490.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1491.             return

  1492. 

  1493.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1494.             hasCustomUI = False

  1495.         else:

  1496.             hasCustomUI = bool(self.host.get_plugin_info(pluginId)['hints'] & PLUGIN_HAS_CUSTOM_UI)

  1497. 

  1498.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI)

  1499. 

  1500.     @pyqtSlot(int, int, int, str)

  1501.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portName):

  1502.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1503.             portMode = patchcanvas.PORT_MODE_INPUT

  1504.         else:

  1505.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1506. 

  1507.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1508.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1509.             isAlternate = False

  1510.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1511.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1512.             isAlternate = True

  1513.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1514.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1515.             isAlternate = False

  1516.         else:

  1517.             portType    = patchcanvas.PORT_TYPE_NULL

  1518.             isAlternate = False

  1519. 

  1520.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1521.         self.updateMiniCanvasLater()

  1522. 

  1523.     @pyqtSlot(int, int)

  1524.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1525.         patchcanvas.removePort(groupId, portId)

  1526.         self.updateMiniCanvasLater()

  1527. 

  1528.     @pyqtSlot(int, int, str)

  1529.     def slot_handlePatchbayPortRenamedCallback(self, groupId, portId, newPortName):

  1530.         patchcanvas.renamePort(groupId, portId, newPortName)

  1531.         self.updateMiniCanvasLater()

  1532. 

  1533.     @pyqtSlot(int, int, int, int, int)

  1534.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1535.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1536.         self.updateMiniCanvasLater()

  1537. 

  1538.     @pyqtSlot(int, int, int)

  1539.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1540.         patchcanvas.disconnectPorts(connectionId)

  1541.         self.updateMiniCanvasLater()

  1542. 

  1543.     # --------------------------------------------------------------------------------------------------------

  1544.     # Settings

  1545. 

  1546.     def saveSettings(self):

  1547.         settings = QSettings()

  1548. 

  1549.         settings.setValue("Geometry", self.saveGeometry())

  1550.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1551.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1552. 

  1553.         diskFolders = []

  1554. 

  1555.         for i in range(self.ui.cb_disk.count()):

  1556.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1557. 

  1558.         settings.setValue("DiskFolders", diskFolders)

  1559.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1560. 

  1561.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1562.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1563.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1564.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1565. 

  1566.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE, self.host.transportMode)

  1567. 

  1568.     def loadSettings(self, firstTime):

  1569.         settings = QSettings()

  1570. 

  1571.         if firstTime:

  1572.             self.restoreGeometry(settings.value("Geometry", b""))

  1573. 

  1574.             showToolbar = settings.value("ShowToolbar", True, type=bool)

  1575.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1576.             self.ui.toolBar.setEnabled(showToolbar)

  1577.             self.ui.toolBar.setVisible(showToolbar)

  1578. 

  1579.             #if settings.contains("SplitterState"):

  1580.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1581.             #else:

  1582.                 #self.ui.splitter.setSizes([210, 99999])

  1583. 

  1584.             showSidePanel = settings.value("ShowSidePanel", True, type=bool)

  1585.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1586.             self.ui.dockWidget.setEnabled(showSidePanel)

  1587.             self.ui.dockWidget.setVisible(showSidePanel)

  1588. 

  1589.             diskFolders = toList(settings.value("DiskFolders", [HOME]))

  1590. 

  1591.             self.ui.cb_disk.setItemData(0, HOME)

  1592. 

  1593.             for i in range(len(diskFolders)):

  1594.                 if i == 0: continue

  1595.                 folder = diskFolders[i]

  1596.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1597. 

  1598.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, type=bool):

  1599.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1600. 

  1601.             showMeters = settings.value("ShowMeters", True, type=bool)

  1602.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1603.             self.ui.peak_in.setVisible(showMeters)

  1604.             self.ui.peak_out.setVisible(showMeters)

  1605. 

  1606.             showKeyboard = settings.value("ShowKeyboard", True, type=bool)

  1607.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1608.             self.ui.scrollArea.setVisible(showKeyboard)

  1609. 

  1610.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1611. 

  1612.         # TODO - complete this

  1613. 

  1614.         self.fSavedSettings = {

  1615.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      type=str),

  1616.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        type=bool),

  1617.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    type=int),

  1618.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        type=bool),

  1619.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             type=str),

  1620.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              type=str),

  1621.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  type=bool),

  1622.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, type=bool),

  1623.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  type=bool),

  1624.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         type=bool),

  1625.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   type=bool),

  1626.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        type=bool),

  1627.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      type=int),

  1628.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   type=bool),

  1629.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   type=bool) and

  1630.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", type=str).lower() == "black"),

  1631.         }

  1632. 

  1633.         settings = QSettings("falkTX", "Carla2")

  1634. 

  1635.         if self.host.experimental and not self.host.isControl:

  1636.             self.ui.act_add_jack.setVisible(settings.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS,

  1637.                                                            CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, type=bool))

  1638.         else:

  1639.             self.ui.act_add_jack.setVisible(False)

  1640. 

  1641.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1642. 

  1643.         setEngineSettings(self.host)

  1644.         self.restartTimersIfNeeded()

  1645. 

  1646.     # --------------------------------------------------------------------------------------------------------

  1647.     # Settings (helpers)

  1648. 

  1649.     def enableTransport(self, enabled):

  1650.         self.ui.group_transport_controls.setEnabled(enabled)

  1651.         self.ui.group_transport_settings.setEnabled(enabled)

  1652. 

  1653.     @pyqtSlot()

  1654.     def slot_restoreCanvasScrollbarValues(self):

  1655.         settings = QSettings()

  1656.         self.ui.graphicsView.horizontalScrollBar().setValue(settings.value("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().maximum()/2, type=int))

  1657.         self.ui.graphicsView.verticalScrollBar().setValue(settings.value("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().maximum()/2, type=int))

  1658. 

  1659.     # --------------------------------------------------------------------------------------------------------

  1660.     # Settings (menu actions)

  1661. 

  1662.     @pyqtSlot(bool)

  1663.     def slot_showSidePanel(self, yesNo):

  1664.         self.ui.dockWidget.setEnabled(yesNo)

  1665.         self.ui.dockWidget.setVisible(yesNo)

  1666. 

  1667.     @pyqtSlot(bool)

  1668.     def slot_showToolbar(self, yesNo):

  1669.         self.ui.toolBar.setEnabled(yesNo)

  1670.         self.ui.toolBar.setVisible(yesNo)

  1671. 

  1672.     @pyqtSlot(bool)

  1673.     def slot_showCanvasMeters(self, yesNo):

  1674.         self.ui.peak_in.setVisible(yesNo)

  1675.         self.ui.peak_out.setVisible(yesNo)

  1676.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1677. 

  1678.     @pyqtSlot(bool)

  1679.     def slot_showCanvasKeyboard(self, yesNo):

  1680.         self.ui.scrollArea.setVisible(yesNo)

  1681.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  1682. 

  1683.     @pyqtSlot()

  1684.     def slot_configureCarla(self):

  1685.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  1686.         if not dialog.exec_():

  1687.             return

  1688. 

  1689.         self.loadSettings(False)

  1690. 

  1691.         patchcanvas.clear()

  1692. 

  1693.         self.setupCanvas()

  1694.         self.slot_miniCanvasCheckAll()

  1695. 

  1696.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1697.             pass

  1698.         elif self.host.is_engine_running():

  1699.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1700. 

  1701.     # --------------------------------------------------------------------------------------------------------

  1702.     # About (menu actions)

  1703. 

  1704.     @pyqtSlot()

  1705.     def slot_aboutCarla(self):

  1706.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  1707. 

  1708.     @pyqtSlot()

  1709.     def slot_aboutQt(self):

  1710.         QApplication.instance().aboutQt()

  1711. 

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

  1713.     # Disk (menu actions)

  1714. 

  1715.     @pyqtSlot(int)

  1716.     def slot_diskFolderChanged(self, index):

  1717.         if index < 0:

  1718.             return

  1719.         elif index == 0:

  1720.             filename = HOME

  1721.             self.ui.b_disk_remove.setEnabled(False)

  1722.         else:

  1723.             filename = self.ui.cb_disk.itemData(index)

  1724.             self.ui.b_disk_remove.setEnabled(True)

  1725. 

  1726.         self.fDirModel.setRootPath(filename)

  1727.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  1728. 

  1729.     @pyqtSlot()

  1730.     def slot_diskFolderAdd(self):

  1731.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  1732. 

  1733.         if newPath:

  1734.             if newPath[-1] == os.sep:

  1735.                 newPath = newPath[:-1]

  1736.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  1737.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  1738.             self.ui.b_disk_remove.setEnabled(True)

  1739. 

  1740.     @pyqtSlot()

  1741.     def slot_diskFolderRemove(self):

  1742.         index = self.ui.cb_disk.currentIndex()

  1743. 

  1744.         if index <= 0:

  1745.             return

  1746. 

  1747.         self.ui.cb_disk.removeItem(index)

  1748. 

  1749.         if self.ui.cb_disk.currentIndex() == 0:

  1750.             self.ui.b_disk_remove.setEnabled(False)

  1751. 

  1752.     @pyqtSlot(QModelIndex)

  1753.     def slot_fileTreeDoubleClicked(self, modelIndex):

  1754.         filename = self.fDirModel.filePath(modelIndex)

  1755. 

  1756.         if not self.ui.listWidget.isDragUrlValid(filename):

  1757.             return

  1758. 

  1759.         if not self.host.load_file(filename):

  1760.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  1761.                              self.tr("Failed to load file"),

  1762.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1763. 

  1764.     # --------------------------------------------------------------------------------------------------------

  1765.     # Transport

  1766. 

  1767.     def refreshTransport(self, forced = False):

  1768.         if not self.isVisible():

  1769.             return

  1770.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  1771.             return

  1772. 

  1773.         timeInfo = self.host.get_transport_info()

  1774.         playing  = timeInfo['playing']

  1775.         frame    = timeInfo['frame']

  1776.         bpm      = timeInfo['bpm']

  1777. 

  1778.         if playing != self.fLastTransportState or forced:

  1779.             if playing:

  1780.                 icon = getIcon("media-playback-pause")

  1781.                 self.ui.b_transport_play.setChecked(True)

  1782.                 self.ui.b_transport_play.setIcon(icon)

  1783.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  1784.             else:

  1785.                 icon = getIcon("media-playback-start")

  1786.                 self.ui.b_transport_play.setChecked(False)

  1787.                 self.ui.b_transport_play.setIcon(icon)

  1788.                 #self.ui.b_play.setText(self.tr("&Play"))

  1789. 

  1790.             self.fLastTransportState = playing

  1791. 

  1792.         if frame != self.fLastTransportFrame or forced:

  1793.             self.fLastTransportFrame = frame

  1794. 

  1795.             time = frame / self.fSampleRate

  1796.             secs =  time % 60

  1797.             mins = (time / 60) % 60

  1798.             hrs  = (time / 3600) % 60

  1799.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  1800. 

  1801.             frame1 =  frame % 1000

  1802.             frame2 = (frame / 1000) % 1000

  1803.             frame3 = (frame / 1000000) % 1000

  1804.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  1805. 

  1806.             bar  = timeInfo['bar']

  1807.             beat = timeInfo['beat']

  1808.             tick = timeInfo['tick']

  1809.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  1810. 

  1811.         if bpm != self.fLastTransportBPM or forced:

  1812.             self.fLastTransportBPM = bpm

  1813. 

  1814.             if bpm > 0.0:

  1815.                 self.ui.dsb_transport_bpm.blockSignals(True)

  1816.                 self.ui.dsb_transport_bpm.setValue(bpm)

  1817.                 self.ui.dsb_transport_bpm.blockSignals(False)

  1818.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  1819.             else:

  1820.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  1821. 

  1822.     # --------------------------------------------------------------------------------------------------------

  1823.     # Transport (menu actions)

  1824. 

  1825.     @pyqtSlot(bool)

  1826.     def slot_transportPlayPause(self, toggled):

  1827.         if self.host.isPlugin or not self.host.is_engine_running():

  1828.             return

  1829. 

  1830.         if toggled:

  1831.             self.host.transport_play()

  1832.         else:

  1833.             self.host.transport_pause()

  1834. 

  1835.         self.refreshTransport()

  1836. 

  1837.     @pyqtSlot()

  1838.     def slot_transportStop(self):

  1839.         if self.host.isPlugin or not self.host.is_engine_running():

  1840.             return

  1841. 

  1842.         self.host.transport_pause()

  1843.         self.host.transport_relocate(0)

  1844. 

  1845.         self.refreshTransport()

  1846. 

  1847.     @pyqtSlot()

  1848.     def slot_transportBackwards(self):

  1849.         if self.host.isPlugin or not self.host.is_engine_running():

  1850.             return

  1851. 

  1852.         newFrame = self.host.get_current_transport_frame() - 100000

  1853. 

  1854.         if newFrame < 0:

  1855.             newFrame = 0

  1856. 

  1857.         self.host.transport_relocate(newFrame)

  1858. 

  1859.     @pyqtSlot(float)

  1860.     def slot_transportBpmChanged(self, newValue):

  1861.         self.host.transport_bpm(newValue)

  1862. 

  1863.     @pyqtSlot()

  1864.     def slot_transportForwards(self):

  1865.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  1866.             return

  1867. 

  1868.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  1869.         self.host.transport_relocate(newFrame)

  1870. 

  1871.     @pyqtSlot(bool)

  1872.     def slot_transportJackEnabled(self, clicked):

  1873.         if not self.host.is_engine_running():

  1874.             return

  1875.         mode  = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  1876.         extra = ":link:" if self.ui.cb_transport_link.isChecked() else ""

  1877.         self.host.transportMode = mode

  1878.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1879. 

  1880.     @pyqtSlot(bool)

  1881.     def slot_transportLinkEnabled(self, clicked):

  1882.         if not self.host.is_engine_running():

  1883.             return

  1884.         mode  = ENGINE_TRANSPORT_MODE_JACK if self.ui.cb_transport_jack.isChecked() else ENGINE_TRANSPORT_MODE_INTERNAL

  1885.         extra = ":link:" if clicked else ""

  1886.         self.host.transportMode = mode

  1887.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, mode, extra)

  1888. 

  1889.     # --------------------------------------------------------------------------------------------------------

  1890.     # Canvas scrollbars

  1891. 

  1892.     @pyqtSlot(int)

  1893.     def slot_horizontalScrollBarChanged(self, value):

  1894.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  1895.         if maximum == 0:

  1896.             xp = 0

  1897.         else:

  1898.             xp = float(value) / maximum

  1899.         self.ui.miniCanvasPreview.setViewPosX(xp)

  1900.         self.updateCanvasInitialPos()

  1901. 

  1902.     @pyqtSlot(int)

  1903.     def slot_verticalScrollBarChanged(self, value):

  1904.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  1905.         if maximum == 0:

  1906.             yp = 0

  1907.         else:

  1908.             yp = float(value) / maximum

  1909.         self.ui.miniCanvasPreview.setViewPosY(yp)

  1910.         self.updateCanvasInitialPos()

  1911. 

  1912.     # --------------------------------------------------------------------------------------------------------

  1913.     # Canvas keyboard

  1914. 

  1915.     @pyqtSlot(int)

  1916.     def slot_noteOn(self, note):

  1917.         for pluginId in self.fSelectedPlugins:

  1918.             self.host.send_midi_note(pluginId, 0, note, 100)

  1919. 

  1920.             pedit = self.getPluginEditDialog(pluginId)

  1921.             pedit.noteOn(0, note, 100)

  1922. 

  1923.     @pyqtSlot(int)

  1924.     def slot_noteOff(self, note):

  1925.         for pluginId in self.fSelectedPlugins:

  1926.             self.host.send_midi_note(pluginId, 0, note, 0)

  1927. 

  1928.             pedit = self.getPluginEditDialog(pluginId)

  1929.             pedit.noteOff(0, note)

  1930. 

  1931.     # --------------------------------------------------------------------------------------------------------

  1932.     # Canvas keyboard (host callbacks)

  1933. 

  1934.     @pyqtSlot(int, int, int, int)

  1935.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  1936.         if pluginId in self.fSelectedPlugins:

  1937.             self.ui.keyboard.sendNoteOn(note, False)

  1938. 

  1939.     @pyqtSlot(int, int, int)

  1940.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  1941.         if pluginId in self.fSelectedPlugins:

  1942.             self.ui.keyboard.sendNoteOff(note, False)

  1943. 

  1944.     # --------------------------------------------------------------------------------------------------------

  1945. 

  1946.     @pyqtSlot(int)

  1947.     def slot_handleUpdateCallback(self, pluginId):

  1948.         pitem = self.getPluginItem(pluginId)

  1949. 

  1950.         if pitem is None:

  1951.             return

  1952. 

  1953.         wasCompacted = pitem.isCompacted()

  1954.         isCompacted  = wasCompacted

  1955. 

  1956.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  1957.         if not check:

  1958.             return

  1959.         isCompacted = bool(check == "true")

  1960. 

  1961.         if wasCompacted == isCompacted:

  1962.             return

  1963. 

  1964.         pitem.recreateWidget(True)

  1965. 

  1966.     # --------------------------------------------------------------------------------------------------------

  1967.     # MiniCanvas stuff

  1968. 

  1969.     @pyqtSlot()

  1970.     def slot_miniCanvasCheckAll(self):

  1971.         self.slot_miniCanvasCheckSize()

  1972.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  1973.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  1974. 

  1975.     @pyqtSlot()

  1976.     def slot_miniCanvasCheckSize(self):

  1977.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  1978.             return

  1979. 

  1980.         currentIndex = self.ui.tabWidget.currentIndex()

  1981. 

  1982.         if currentIndex == 1:

  1983.             width  = self.ui.graphicsView.width()

  1984.             height = self.ui.graphicsView.height()

  1985.         else:

  1986.             self.ui.tabWidget.blockSignals(True)

  1987.             self.ui.tabWidget.setCurrentIndex(1)

  1988.             width  = self.ui.graphicsView.width()

  1989.             height = self.ui.graphicsView.height()

  1990.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  1991.             self.ui.tabWidget.blockSignals(False)

  1992. 

  1993.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  1994. 

  1995.     @pyqtSlot(float, float)

  1996.     def slot_miniCanvasMoved(self, xp, yp):

  1997.         hsb = self.ui.graphicsView.horizontalScrollBar()

  1998.         vsb = self.ui.graphicsView.verticalScrollBar()

  1999.         hsb.setValue(xp * hsb.maximum())

  2000.         vsb.setValue(yp * vsb.maximum())

  2001.         self.updateCanvasInitialPos()

  2002. 

  2003.     # --------------------------------------------------------------------------------------------------------

  2004.     # Timers

  2005. 

  2006.     def startTimers(self):

  2007.         if self.fIdleTimerFast == 0:

  2008.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2009. 

  2010.         if self.fIdleTimerSlow == 0:

  2011.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2012. 

  2013.     def restartTimersIfNeeded(self):

  2014.         if self.fIdleTimerFast != 0:

  2015.             self.killTimer(self.fIdleTimerFast)

  2016.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2017. 

  2018.         if self.fIdleTimerSlow != 0:

  2019.             self.killTimer(self.fIdleTimerSlow)

  2020.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2021. 

  2022.     def killTimers(self):

  2023.         if self.fIdleTimerFast != 0:

  2024.             self.killTimer(self.fIdleTimerFast)

  2025.             self.fIdleTimerFast = 0

  2026. 

  2027.         if self.fIdleTimerSlow != 0:

  2028.             self.killTimer(self.fIdleTimerSlow)

  2029.             self.fIdleTimerSlow = 0

  2030. 

  2031.     # --------------------------------------------------------------------------------------------------------

  2032.     # Misc

  2033. 

  2034.     @pyqtSlot(int)

  2035.     def slot_tabChanged(self, index):

  2036.         if index != 1:

  2037.             return

  2038. 

  2039.         self.ui.graphicsView.setFocus()

  2040. 

  2041.     @pyqtSlot(int)

  2042.     def slot_handleReloadAllCallback(self, pluginId):

  2043.         if pluginId >= self.fPluginCount:

  2044.             return

  2045. 

  2046.         pitem = self.fPluginList[pluginId]

  2047.         if pitem is None:

  2048.             return

  2049. 

  2050.         pitem.recreateWidget()

  2051. 

  2052.     # --------------------------------------------------------------------------------------------------------

  2053. 

  2054.     @pyqtSlot(int, int, str)

  2055.     def slot_handleNSMCallback(self, value1, value2, valueStr):

  2056.         # Error

  2057.         if value1 == 0:

  2058.             pass

  2059. 

  2060.         # Reply

  2061.         elif value1 == 1:

  2062.             self.fFirstEngineInit    = False

  2063.             self.fSessionManagerName = valueStr

  2064.             self.setProperWindowTitle()

  2065. 

  2066.         # Open

  2067.         elif value1 == 2:

  2068.             self.fClientName      = os.path.basename(valueStr)

  2069.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2070.             self.setProperWindowTitle()

  2071. 

  2072.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2073.             self.slot_engineStop(True)

  2074.             return

  2075. 

  2076.         # Save

  2077.         elif value1 == 3:

  2078.             self.saveProjectNow()

  2079. 

  2080.         # Session is Loaded

  2081.         elif value1 == 4:

  2082.             pass

  2083. 

  2084.         # Show Optional Gui

  2085.         elif value1 == 5:

  2086.             self.show()

  2087. 

  2088.         # Hide Optional Gui

  2089.         elif value1 == 6:

  2090.             self.hide()

  2091. 

  2092.         self.host.nsm_ready(value1)

  2093. 

  2094.     # --------------------------------------------------------------------------------------------------------

  2095. 

  2096.     def fixLogText(self, text):

  2097.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2098. 

  2099.     @pyqtSlot(int, int, int, float, str)

  2100.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valueStr):

  2101.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2102. 

  2103.     @pyqtSlot(str)

  2104.     def slot_handleInfoCallback(self, info):

  2105.         QMessageBox.information(self, "Information", info)

  2106. 

  2107.     @pyqtSlot(str)

  2108.     def slot_handleErrorCallback(self, error):

  2109.         QMessageBox.critical(self, "Error", error)

  2110. 

  2111.     @pyqtSlot()

  2112.     def slot_handleQuitCallback(self):

  2113.         pass # TODO

  2114. 

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

  2116. 

  2117.     @pyqtSlot()

  2118.     def slot_handleSIGUSR1(self):

  2119.         print("Got SIGUSR1 -> Saving project now")

  2120.         self.slot_fileSave()

  2121. 

  2122.     @pyqtSlot()

  2123.     def slot_handleSIGTERM(self):

  2124.         print("Got SIGTERM -> Closing now")

  2125.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2126.         self.slot_engineStop(True)

  2127. 

  2128.     # --------------------------------------------------------------------------------------------------------

  2129.     # Internal stuff

  2130. 

  2131.     def getExtraPtr(self, plugin):

  2132.         ptype = plugin['type']

  2133. 

  2134.         if ptype == PLUGIN_LADSPA:

  2135.             uniqueId = plugin['uniqueId']

  2136. 

  2137.             self.maybeLoadRDFs()

  2138. 

  2139.             for rdfItem in self.fLadspaRdfList:

  2140.                 if rdfItem.UniqueID == uniqueId:

  2141.                     return pointer(rdfItem)

  2142. 

  2143.         elif ptype == PLUGIN_SF2:

  2144.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2145.                 return self._true

  2146. 

  2147.         return None

  2148. 

  2149.     def maybeLoadRDFs(self):

  2150.         if not self.fLadspaRdfNeedsUpdate:

  2151.             return

  2152. 

  2153.         self.fLadspaRdfNeedsUpdate = False

  2154.         self.fLadspaRdfList = []

  2155. 

  2156.         if not haveLRDF:

  2157.             return

  2158. 

  2159.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2160.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2161. 

  2162.         if os.path.exists(frLadspaFile):

  2163.             frLadspa = open(frLadspaFile, 'r')

  2164. 

  2165.             try:

  2166.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2167.             except:

  2168.                 pass

  2169. 

  2170.             frLadspa.close()

  2171. 

  2172.     # --------------------------------------------------------------------------------------------------------

  2173. 

  2174.     def getPluginCount(self):

  2175.         return self.fPluginCount

  2176. 

  2177.     def getPluginItem(self, pluginId):

  2178.         if pluginId >= self.fPluginCount:

  2179.             return None

  2180. 

  2181.         pitem = self.fPluginList[pluginId]

  2182.         if pitem is None:

  2183.             return None

  2184.         #if False:

  2185.             #return CarlaRackItem(self, 0, False)

  2186. 

  2187.         return pitem

  2188. 

  2189.     def getPluginEditDialog(self, pluginId):

  2190.         if pluginId >= self.fPluginCount:

  2191.             return None

  2192. 

  2193.         pitem = self.fPluginList[pluginId]

  2194.         if pitem is None:

  2195.             return None

  2196.         if False:

  2197.             return PluginEdit(self, self.host, 0)

  2198. 

  2199.         return pitem.getEditDialog()

  2200. 

  2201.     def getPluginSlotWidget(self, pluginId):

  2202.         if pluginId >= self.fPluginCount:

  2203.             return None

  2204. 

  2205.         pitem = self.fPluginList[pluginId]

  2206.         if pitem is None:

  2207.             return None

  2208.         #if False:

  2209.             #return AbstractPluginSlot()

  2210. 

  2211.         return pitem.getWidget()

  2212. 

  2213.     # --------------------------------------------------------------------------------------------------------

  2214. 

  2215.     def waitForPendingEvents(self):

  2216.         pass

  2217. 

  2218.     # --------------------------------------------------------------------------------------------------------

  2219.     # show/hide event

  2220. 

  2221.     def showEvent(self, event):

  2222.         self.refreshTransport(True)

  2223.         QMainWindow.showEvent(self, event)

  2224. 

  2225.         # set our gui as parent for all plugins UIs

  2226.         if self.host.manageUIs and not (self.host.isControl or self.host.isPlugin):

  2227.             if MACOS:

  2228.                 nsViewPtr = int(self.winId())

  2229.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2230.             else:

  2231.                 winIdStr = "%x" % int(self.winId())

  2232.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2233. 

  2234.     def hideEvent(self, event):

  2235.         # disable parent

  2236.         if not (self.host.isControl or self.host.isPlugin):

  2237.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2238. 

  2239.         QMainWindow.hideEvent(self, event)

  2240. 

  2241.     # --------------------------------------------------------------------------------------------------------

  2242.     # resize event

  2243. 

  2244.     def fixCanvasPreviewSize(self):

  2245.         self.ui.patchbay.resize(self.ui.rack.size())

  2246.         self.slot_miniCanvasCheckSize()

  2247. 

  2248.     def resizeEvent(self, event):

  2249.         QMainWindow.resizeEvent(self, event)

  2250. 

  2251.         if self.ui.tabWidget.currentIndex() != 1:

  2252.             size = self.ui.rack.size()

  2253.             self.ui.patchbay.resize(size)

  2254. 

  2255.         self.slot_miniCanvasCheckSize()

  2256. 

  2257.     # --------------------------------------------------------------------------------------------------------

  2258.     # timer event

  2259. 

  2260.     def idleFast(self):

  2261.         self.host.engine_idle()

  2262.         self.refreshTransport()

  2263. 

  2264.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2265.             return

  2266. 

  2267.         for pitem in self.fPluginList:

  2268.             if pitem is None:

  2269.                 break

  2270. 

  2271.             pitem.getWidget().idleFast()

  2272. 

  2273.         for pluginId in self.fSelectedPlugins:

  2274.             self.fPeaksCleared = False

  2275.             if self.ui.peak_in.isVisible():

  2276.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2277.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2278.             if self.ui.peak_out.isVisible():

  2279.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2280.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2281.             return

  2282. 

  2283.         if self.fPeaksCleared:

  2284.             return

  2285. 

  2286.         self.fPeaksCleared = True

  2287.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2288.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2289.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2290.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2291. 

  2292.     def idleSlow(self):

  2293.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2294.             return

  2295. 

  2296.         for pitem in self.fPluginList:

  2297.             if pitem is None:

  2298.                 break

  2299. 

  2300.             pitem.getWidget().idleSlow()

  2301. 

  2302.     def timerEvent(self, event):

  2303.         if event.timerId() == self.fIdleTimerFast:

  2304.             self.idleFast()

  2305. 

  2306.         elif event.timerId() == self.fIdleTimerSlow:

  2307.             self.idleSlow()

  2308. 

  2309.         QMainWindow.timerEvent(self, event)

  2310. 

  2311.     # --------------------------------------------------------------------------------------------------------

  2312.     # paint event

  2313. 

  2314.     #def paintEvent(self, event):

  2315.         #QMainWindow.paintEvent(self, event)

  2316. 

  2317.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2318.             #return

  2319. 

  2320.         #painter = QPainter(self)

  2321.         #painter.setBrush(QColor(36, 36, 36))

  2322.         #painter.setPen(QColor(62, 62, 62))

  2323.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2324. 

  2325.     # --------------------------------------------------------------------------------------------------------

  2326.     # close event

  2327. 

  2328.     def shouldIgnoreClose(self):

  2329.         if self.host.isControl or self.host.isPlugin:

  2330.             return False

  2331.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2332.             return False

  2333.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2334.             return QMessageBox.question(self, self.tr("Quit"),

  2335.                                               self.tr("Are you sure you want to quit Carla?"),

  2336.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2337.         return False

  2338. 

  2339.     def closeEvent(self, event):

  2340.         if self.shouldIgnoreClose():

  2341.             event.ignore()

  2342.             return

  2343. 

  2344.         self.killTimers()

  2345.         self.saveSettings()

  2346. 

  2347.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2348.             if not self.slot_engineStop(True):

  2349.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2350.                 event.ignore()

  2351.                 return

  2352. 

  2353.         QMainWindow.closeEvent(self, event)

  2354. 

  2355. # ------------------------------------------------------------------------------------------------

  2356. # Canvas callback

  2357. 

  2358. def canvasCallback(action, value1, value2, valueStr):

  2359.     host = gCarla.gui.host

  2360. 

  2361.     if action == patchcanvas.ACTION_GROUP_INFO:

  2362.         pass

  2363. 

  2364.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2365.         pass

  2366. 

  2367.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2368.         groupId = value1

  2369.         patchcanvas.splitGroup(groupId)

  2370.         gCarla.gui.updateMiniCanvasLater()

  2371. 

  2372.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2373.         groupId = value1

  2374.         patchcanvas.joinGroup(groupId)

  2375.         gCarla.gui.updateMiniCanvasLater()

  2376. 

  2377.     elif action == patchcanvas.ACTION_PORT_INFO:

  2378.         pass

  2379. 

  2380.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2381.         pass

  2382. 

  2383.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2384.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")]

  2385. 

  2386.         if not host.patchbay_connect(gOut, pOut, gIn, pIn):

  2387.             print("Connection failed:", host.get_last_error())

  2388. 

  2389.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2390.         connectionId = value1

  2391. 

  2392.         if not host.patchbay_disconnect(connectionId):

  2393.             print("Disconnect failed:", host.get_last_error())

  2394. 

  2395.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2396.         pluginId = value1

  2397. 

  2398.         if not host.clone_plugin(pluginId):

  2399.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2400.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2401. 

  2402.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2403.         pluginId = value1

  2404.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2405. 

  2406.         if pwidget is not None:

  2407.             pwidget.showEditDialog()

  2408. 

  2409.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2410.         pluginId = value1

  2411.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2412. 

  2413.         if pwidget is not None:

  2414.             pwidget.showRenameDialog()

  2415. 

  2416.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2417.         pluginId = value1

  2418.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2419. 

  2420.         if pwidget is not None:

  2421.             pwidget.showReplaceDialog()

  2422. 

  2423.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  2424.         pluginId = value1

  2425. 

  2426.         if not host.remove_plugin(pluginId):

  2427.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2428.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2429. 

  2430.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  2431.         pluginId = value1

  2432.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2433. 

  2434.         if pwidget is not None:

  2435.             pwidget.showCustomUI()

  2436. 

  2437.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  2438.         gCarla.gui.showPluginActionsMenu()

  2439. 

  2440. # ------------------------------------------------------------------------------------------------------------

  2441. # Engine callback

  2442. 

  2443. def engineCallback(host, action, pluginId, value1, value2, value3, valueStr):

  2444.     # kdevelop likes this :)

  2445.     if False: host = CarlaHostNull()

  2446. 

  2447.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  2448.         host.processMode   = value1

  2449.         host.transportMode = value2

  2450.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2451.         host.processMode   = value1

  2452.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2453.         host.transportMode = value1

  2454. 

  2455.     valueStr = charPtrToString(valueStr)

  2456. 

  2457.     if action == ENGINE_CALLBACK_DEBUG:

  2458.         host.DebugCallback.emit(pluginId, value1, value2, value3, valueStr)

  2459.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  2460.         host.PluginAddedCallback.emit(pluginId, valueStr)

  2461.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  2462.         host.PluginRemovedCallback.emit(pluginId)

  2463.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  2464.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  2465.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  2466.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  2467.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  2468.         host.ParameterValueChangedCallback.emit(pluginId, value1, value3)

  2469.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  2470.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, value3)

  2471.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CC_CHANGED:

  2472.         host.ParameterMidiCcChangedCallback.emit(pluginId, value1, value2)

  2473.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  2474.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  2475.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  2476.         host.ProgramChangedCallback.emit(pluginId, value1)

  2477.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  2478.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  2479.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  2480.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  2481.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  2482.         host.UiStateChangedCallback.emit(pluginId, value1)

  2483.     elif action == ENGINE_CALLBACK_NOTE_ON:

  2484.         host.NoteOnCallback.emit(pluginId, value1, value2, round(value3))

  2485.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  2486.         host.NoteOffCallback.emit(pluginId, value1, value2)

  2487.     elif action == ENGINE_CALLBACK_UPDATE:

  2488.         host.UpdateCallback.emit(pluginId)

  2489.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  2490.         host.ReloadInfoCallback.emit(pluginId)

  2491.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  2492.         host.ReloadParametersCallback.emit(pluginId)

  2493.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  2494.         host.ReloadProgramsCallback.emit(pluginId)

  2495.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  2496.         host.ReloadAllCallback.emit(pluginId)

  2497.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  2498.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  2499.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  2500.         host.PatchbayClientRemovedCallback.emit(pluginId)

  2501.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  2502.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  2503.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  2504.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  2505.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  2506.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, valueStr)

  2507.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  2508.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  2509.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_RENAMED:

  2510.         host.PatchbayPortRenamedCallback.emit(pluginId, value1, valueStr)

  2511.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  2512.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  2513.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  2514.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  2515.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  2516.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  2517.         host.EngineStartedCallback.emit(value1, value2, value3, valueStr)

  2518.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  2519.         host.EngineStoppedCallback.emit()

  2520.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  2521.         host.ProcessModeChangedCallback.emit(value1)

  2522.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  2523.         host.TransportModeChangedCallback.emit(value1)

  2524.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  2525.         host.BufferSizeChangedCallback.emit(value1)

  2526.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  2527.         host.SampleRateChangedCallback.emit(value3)

  2528.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  2529.         host.ProjectLoadFinishedCallback.emit()

  2530.     elif action == ENGINE_CALLBACK_NSM:

  2531.         host.NSMCallback.emit(value1, value2, valueStr)

  2532.     elif action == ENGINE_CALLBACK_IDLE:

  2533.         QApplication.processEvents(QEventLoop.ExcludeUserInputEvents)

  2534.     elif action == ENGINE_CALLBACK_INFO:

  2535.         host.InfoCallback.emit(valueStr)

  2536.     elif action == ENGINE_CALLBACK_ERROR:

  2537.         host.ErrorCallback.emit(valueStr)

  2538.     elif action == ENGINE_CALLBACK_QUIT:

  2539.         host.QuitCallback.emit()

  2540. 

  2541. # ------------------------------------------------------------------------------------------------------------

  2542. # File callback

  2543. 

  2544. def fileCallback(ptr, action, isDir, title, filter):

  2545.     ret = ("", "") if config_UseQt5 else ""

  2546. 

  2547.     title  = charPtrToString(title)

  2548.     filter = charPtrToString(filter)

  2549. 

  2550.     if action == FILE_CALLBACK_OPEN:

  2551.         ret = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2552.     elif action == FILE_CALLBACK_SAVE:

  2553.         ret = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  2554. 

  2555.     if config_UseQt5:

  2556.         ret = ret[0]

  2557.     if not ret:

  2558.         return None

  2559. 

  2560.     # FIXME

  2561.     global fileRet

  2562.     fileRet = c_char_p(ret.encode("utf-8"))

  2563.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  2564.     return retval.contents.value

  2565. 

  2566. # ------------------------------------------------------------------------------------------------------------

  2567. # Init host

  2568. 

  2569. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  2570.     pathBinaries, pathResources = getPaths(libPrefix)

  2571. 

  2572.     # --------------------------------------------------------------------------------------------------------

  2573.     # Check if we should open main lib as local or global

  2574. 

  2575.     settings = QSettings("falkTX", "Carla2")

  2576. 

  2577.     try:

  2578.         loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, type=bool)

  2579.     except:

  2580.         loadGlobal = CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL

  2581. 

  2582.     # --------------------------------------------------------------------------------------------------------

  2583.     # Fail if binary dir is not found

  2584. 

  2585.     if not os.path.exists(pathBinaries):

  2586.         if failError:

  2587.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  2588.             sys.exit(1)

  2589.         return

  2590. 

  2591.     # --------------------------------------------------------------------------------------------------------

  2592.     # Set Carla library name

  2593. 

  2594.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  2595.     libname   = os.path.join(pathBinaries, libname)

  2596.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  2597. 

  2598.     # --------------------------------------------------------------------------------------------------------

  2599.     # Print info

  2600. 

  2601.     print("Carla %s started, status:" % VERSION)

  2602.     print("  Python version: %s" % sys.version.split(" ",1)[0])

  2603.     print("  Qt version:     %s" % qVersion())

  2604.     print("  PyQt version:   %s" % PYQT_VERSION_STR)

  2605.     print("  Binary dir:     %s" % pathBinaries)

  2606.     print("  Resources dir:  %s" % pathResources)

  2607. 

  2608.     # --------------------------------------------------------------------------------------------------------

  2609.     # Init host

  2610. 

  2611.     if failError:

  2612.         # no try

  2613.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2614.     else:

  2615.         try:

  2616.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  2617.         except:

  2618.             host = CarlaHostQtNull()

  2619. 

  2620.     host.isControl = isControl

  2621.     host.isPlugin  = isPlugin

  2622. 

  2623.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vs: engineCallback(host,a,p,v1,v2,v3,vs))

  2624.     host.set_file_callback(fileCallback)

  2625. 

  2626.     # If it's a plugin the paths are already set

  2627.     if not isPlugin:

  2628.         host.pathBinaries  = pathBinaries

  2629.         host.pathResources = pathResources

  2630.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  2631.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  2632. 

  2633.         if not isControl:

  2634.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  2635. 

  2636.     # --------------------------------------------------------------------------------------------------------

  2637.     # Init utils

  2638. 

  2639.     gCarla.utils = CarlaUtils(utilsname)

  2640.     gCarla.utils.set_process_name(os.path.basename(initName))

  2641. 

  2642.     try:

  2643.         sys.stdout.flush()

  2644.     except:

  2645.         pass

  2646. 

  2647.     sys.stdout = CarlaPrint(False)

  2648.     sys.stderr = CarlaPrint(True)

  2649. 

  2650.     if config_UseQt5:

  2651.         sys.excepthook = sys_excepthook

  2652. 

  2653.     # --------------------------------------------------------------------------------------------------------

  2654.     # Done

  2655. 

  2656.     return host

  2657. 

  2658. # ------------------------------------------------------------------------------------------------------------

  2659. # Load host settings

  2660. 

  2661. def loadHostSettings(host):

  2662.     # kdevelop likes this :)

  2663.     if False: host = CarlaHostNull()

  2664. 

  2665.     settings = QSettings("falkTX", "Carla2")

  2666. 

  2667.     try:

  2668.         host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, type=bool)

  2669.     except:

  2670.         host.experimental = CARLA_DEFAULT_MAIN_EXPERIMENTAL

  2671. 

  2672.     try:

  2673.         host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, type=bool)

  2674.     except:

  2675.         host.exportLV2 = CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT

  2676. 

  2677.     try:

  2678.         host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, type=bool)

  2679.     except:

  2680.         host.manageUIs = CARLA_DEFAULT_MANAGE_UIS

  2681. 

  2682.     try:

  2683.         host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, type=int)

  2684.     except:

  2685.         host.maxParameters = CARLA_DEFAULT_MAX_PARAMETERS

  2686. 

  2687.     try:

  2688.         host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, type=bool)

  2689.     except:

  2690.         host.forceStereo = CARLA_DEFAULT_FORCE_STEREO

  2691. 

  2692.     try:

  2693.         host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, type=bool)

  2694.     except:

  2695.         host.preferPluginBridges = CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES

  2696. 

  2697.     try:

  2698.         host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, type=bool)

  2699.     except:

  2700.         host.preferUIBridges = CARLA_DEFAULT_PREFER_UI_BRIDGES

  2701. 

  2702.     try:

  2703.         host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, type=bool)

  2704.     except:

  2705.         host.preventBadBehaviour = CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR

  2706. 

  2707.     try:

  2708.         host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, type=bool)

  2709.     except:

  2710.         host.showLogs = CARLA_DEFAULT_MAIN_SHOW_LOGS

  2711. 

  2712.     try:

  2713.         host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, type=bool)

  2714.     except:

  2715.         host.showPluginBridges = CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES

  2716. 

  2717.     try:

  2718.         host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, type=bool)

  2719.     except:

  2720.         host.showWineBridges = CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES

  2721. 

  2722.     try:

  2723.         host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, type=int)

  2724.     except:

  2725.         host.uiBridgesTimeout = CARLA_DEFAULT_UI_BRIDGES_TIMEOUT

  2726. 

  2727.     try:

  2728.         host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, type=bool)

  2729.     except:

  2730.         host.uisAlwaysOnTop = CARLA_DEFAULT_UIS_ALWAYS_ON_TOP

  2731. 

  2732.     if host.isPlugin:

  2733.         return

  2734. 

  2735.     # enums

  2736.     if host.audioDriverForced is None:

  2737.         try:

  2738.             host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)

  2739.         except:

  2740.             host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE

  2741. 

  2742.     if not host.processModeForced:

  2743.         try:

  2744.             host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, type=int)

  2745.         except:

  2746.             host.processMode = CARLA_DEFAULT_PROCESS_MODE

  2747. 

  2748.     host.nextProcessMode = host.processMode

  2749. 

  2750.     # --------------------------------------------------------------------------------------------------------

  2751.     # fix things if needed

  2752. 

  2753.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS and LADISH_APP_NAME:

  2754.         print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  2755.         host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  2756. 

  2757.     if gCarla.nogui:

  2758.         host.showLogs = False

  2759. 

  2760.     # --------------------------------------------------------------------------------------------------------

  2761.     # run headless host now if nogui option enabled

  2762. 

  2763.     if gCarla.nogui:

  2764.         runHostWithoutUI(host)

  2765. 

  2766. # ------------------------------------------------------------------------------------------------------------

  2767. # Set host settings

  2768. 

  2769. def setHostSettings(host):

  2770.     # kdevelop likes this :)

  2771.     if False: host = CarlaHostNull()

  2772. 

  2773.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  2774.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  2775.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  2776.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  2777.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  2778.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  2779.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  2780. 

  2781.     if host.isPlugin or host.isRemote or host.is_engine_running():

  2782.         return

  2783. 

  2784.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  2785.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       "")

  2786.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  2787. 

  2788. # ------------------------------------------------------------------------------------------------------------

  2789. # Set Engine settings according to carla preferences. Returns selected audio driver.

  2790. 

  2791. def setEngineSettings(host):

  2792.     # kdevelop likes this :)

  2793.     if False: host = CarlaHostNull()

  2794. 

  2795.     # --------------------------------------------------------------------------------------------------------

  2796.     # do nothing if control

  2797. 

  2798.     if host.isControl:

  2799.         return "Control"

  2800. 

  2801.     # --------------------------------------------------------------------------------------------------------

  2802. 

  2803.     settings = QSettings("falkTX", "Carla2")

  2804. 

  2805.     # --------------------------------------------------------------------------------------------------------

  2806.     # main settings

  2807. 

  2808.     setHostSettings(host)

  2809. 

  2810.     # --------------------------------------------------------------------------------------------------------

  2811.     # plugin paths

  2812. 

  2813.     LADSPA_PATH = toList(settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH))

  2814.     DSSI_PATH   = toList(settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH))

  2815.     LV2_PATH    = toList(settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH))

  2816.     VST2_PATH   = toList(settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH))

  2817.     SF2_PATH    = toList(settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH))

  2818.     SFZ_PATH    = toList(settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH))

  2819. 

  2820.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  2821.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  2822.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  2823.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  2824.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  2825.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  2826. 

  2827.     # --------------------------------------------------------------------------------------------------------

  2828.     # don't continue if plugin

  2829. 

  2830.     if host.isPlugin:

  2831.         return "Plugin"

  2832. 

  2833.     # --------------------------------------------------------------------------------------------------------

  2834.     # wine settings

  2835. 

  2836.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, type=str)

  2837.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, type=bool)

  2838.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, type=str)

  2839.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, type=bool)

  2840.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, type=int)

  2841.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, type=int)

  2842. 

  2843.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  2844.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  2845.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  2846.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  2847.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  2848.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  2849. 

  2850.     # --------------------------------------------------------------------------------------------------------

  2851.     # driver and device settings

  2852. 

  2853.     # driver name

  2854.     if host.audioDriverForced is not None:

  2855.         audioDriver = host.audioDriverForced

  2856.     else:

  2857.         try:

  2858.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)

  2859.         except:

  2860.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  2861. 

  2862.     # driver options

  2863.     try:

  2864.         audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", type=str)

  2865.     except:

  2866.         audioDevice = ""

  2867. 

  2868.     try:

  2869.         audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, type=int)

  2870.     except:

  2871.         audioBufferSize = CARLA_DEFAULT_AUDIO_BUFFER_SIZE

  2872. 

  2873.     try:

  2874.         audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, type=int)

  2875.     except:

  2876.         audioSampleRate = CARLA_DEFAULT_AUDIO_SAMPLE_RATE

  2877. 

  2878.     try:

  2879.         audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, type=int)

  2880.     except:

  2881.         audioTripleBuffer = CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER

  2882. 

  2883.     # Only setup audio things if engine is not running

  2884.     if not host.is_engine_running():

  2885.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  2886. 

  2887.         if not audioDriver.startswith("JACK"):

  2888.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  2889.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  2890.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, audioTripleBuffer, "")

  2891. 

  2892.     # --------------------------------------------------------------------------------------------------------

  2893.     # fix things if needed

  2894. 

  2895.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  2896.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  2897.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, "")

  2898. 

  2899.     # --------------------------------------------------------------------------------------------------------

  2900.     # return selected driver name

  2901. 

  2902.     return audioDriver

  2903. 

  2904. # ------------------------------------------------------------------------------------------------------------

  2905. # Run Carla without showing UI

  2906. 

  2907. def runHostWithoutUI(host):

  2908.     # kdevelop likes this :)

  2909.     if False: host = CarlaHostNull()

  2910. 

  2911.     # --------------------------------------------------------------------------------------------------------

  2912.     # Some initial checks

  2913. 

  2914.     if not gCarla.nogui:

  2915.         return

  2916. 

  2917.     projectFile = getInitialProjectFile(QCoreApplication.instance(), True)

  2918. 

  2919.     if not projectFile:

  2920.         print("Carla no-gui mode can only be used together with a project file.")

  2921.         sys.exit(1)

  2922. 

  2923.     # --------------------------------------------------------------------------------------------------------

  2924.     # Additional imports

  2925. 

  2926.     from time import sleep

  2927. 

  2928.     # --------------------------------------------------------------------------------------------------------

  2929.     # Init engine

  2930. 

  2931.     audioDriver = setEngineSettings(host)

  2932.     if not host.engine_init(audioDriver, "Carla"):

  2933.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  2934.         sys.exit(1)

  2935. 

  2936.     if not host.load_project(projectFile):

  2937.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  2938.         host.engine_close()

  2939.         sys.exit(1)

  2940. 

  2941.     # --------------------------------------------------------------------------------------------------------

  2942.     # Idle

  2943. 

  2944.     print("Carla ready!")

  2945. 

  2946.     while host.is_engine_running() and not gCarla.term:

  2947.         host.engine_idle()

  2948.         sleep(0.0333) # 30 Hz

  2949. 

  2950.     # --------------------------------------------------------------------------------------------------------

  2951.     # Stop

  2952. 

  2953.     host.engine_close()

  2954.     sys.exit(0)

  2955. 

  2956. # ------------------------------------------------------------------------------------------------------------