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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) 2011-2021 Filipe Coelho <falktx@falktx.com>

  6. #

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

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

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

  10. # the License, or any later version.

  11. #

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

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

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

  15. # GNU General Public License for more details.

  16. #

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

  18. 

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

  20. # Imports (Global)

  21. 

  22. import json

  23. 

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

  25. # Imports (ctypes)

  26. 

  27. from ctypes import (

  28.     byref, pointer

  29. )

  30. 

  31. # ------------------------------------------------------------------------------------------------------------

  32. # Imports (PyQt5)

  33. 

  34. # This fails in some configurations, assume >= 5.6.0 in that case

  35. try:

  36.     from PyQt5.Qt import PYQT_VERSION

  37. except ImportError:

  38.     PYQT_VERSION = 0x50600

  39. 

  40. from PyQt5.QtCore import (

  41.     QT_VERSION, qCritical, QBuffer, QEventLoop, QFileInfo, QIODevice, QMimeData, QModelIndex, QPointF, QTimer, QEvent

  42. )

  43. from PyQt5.QtGui import (

  44.     QImage, QImageWriter, QPainter, QPalette, QBrush

  45. )

  46. from PyQt5.QtWidgets import (

  47.     QAction, QApplication, QInputDialog, QFileSystemModel, QListWidgetItem, QGraphicsView, QMainWindow

  48. )

  49. 

  50. # ------------------------------------------------------------------------------------------------------------

  51. # Imports (Custom)

  52. 

  53. import ui_carla_host

  54. 

  55. from carla_app import *

  56. from carla_backend_qt import CarlaHostQtDLL, CarlaHostQtNull

  57. from carla_database import *

  58. from carla_settings import *

  59. from carla_utils import *

  60. from carla_widgets import *

  61. 

  62. from patchcanvas import patchcanvas

  63. from widgets.digitalpeakmeter import DigitalPeakMeter

  64. from widgets.pixmapkeyboard import PixmapKeyboardHArea

  65. 

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

  67. # Try Import OpenGL

  68. 

  69. try:

  70.     from PyQt5.QtOpenGL import QGLWidget

  71.     hasGL = True

  72. except:

  73.     hasGL = False

  74. 

  75. # ------------------------------------------------------------------------------------------------------------

  76. # Safe exception hook, needed for PyQt5

  77. 

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

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

  80. 

  81. # ------------------------------------------------------------------------------------------------------------

  82. # Session Management support

  83. 

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

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

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

  87. 

  88. # ------------------------------------------------------------------------------------------------------------

  89. # Small print helper

  90. 

  91. def processMode2Str(processMode):

  92.     if processMode == ENGINE_PROCESS_MODE_SINGLE_CLIENT:

  93.         return "Single client"

  94.     if processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  95.         return "Multi client"

  96.     if processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK:

  97.         return "Continuous Rack"

  98.     if processMode == ENGINE_PROCESS_MODE_PATCHBAY:

  99.         return "Patchbay"

  100.     if processMode == ENGINE_PROCESS_MODE_BRIDGE:

  101.         return "Bridge"

  102.     return "Unknown"

  103. 

  104. # ------------------------------------------------------------------------------------------------------------

  105. # Carla Print class

  106. 

  107. class CarlaPrint:

  108.     def __init__(self, err):

  109.         self.err = err

  110. 

  111.     def flush(self):

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

  113. 

  114.     def write(self, string):

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

  116. 

  117. # ------------------------------------------------------------------------------------------------------------

  118. # Host Window

  119. 

  120. class HostWindow(QMainWindow):

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

  122.     # signals

  123.     SIGTERM = pyqtSignal()

  124.     SIGUSR1 = pyqtSignal()

  125. 

  126.     # CustomActions

  127.     CUSTOM_ACTION_NONE         = 0

  128.     CUSTOM_ACTION_APP_CLOSE    = 1

  129.     CUSTOM_ACTION_PROJECT_LOAD = 2

  130. 

  131.     # --------------------------------------------------------------------------------------------------------

  132. 

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

  134.         QMainWindow.__init__(self, parent)

  135.         self.host = host

  136.         self.ui = ui_carla_host.Ui_CarlaHostW()

  137.         self.ui.setupUi(self)

  138.         gCarla.gui = self

  139. 

  140.         if False:

  141.             # kdevelop likes this :)

  142.             host = CarlaHostNull()

  143.             self.host = host

  144. 

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

  146. 

  147.         self.fParentOrSelf = parent or self

  148. 

  149.         # ----------------------------------------------------------------------------------------------------

  150.         # Internal stuff

  151. 

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

  153.         self.fIdleTimerFast = 0

  154.         self.fIdleTimerSlow = 0

  155. 

  156.         self.fLadspaRdfNeedsUpdate = True

  157.         self.fLadspaRdfList = []

  158. 

  159.         self.fPluginCount = 0

  160.         self.fPluginList  = []

  161. 

  162.         self.fPluginDatabaseDialog = None

  163.         self.fFavoritePlugins = []

  164. 

  165.         self.fProjectFilename  = ""

  166.         self.fIsProjectLoading = False

  167.         self.fCurrentlyRemovingAllPlugins = False

  168.         self.fHasLoadedLv2Plugins = False

  169. 

  170.         self.fLastTransportBPM   = 0.0

  171.         self.fLastTransportFrame = 0

  172.         self.fLastTransportState = False

  173.         self.fBufferSize         = 0

  174.         self.fSampleRate         = 0.0

  175.         self.fOscAddressTCP      = ""

  176.         self.fOscAddressUDP      = ""

  177. 

  178.         if MACOS:

  179.             self.fMacClosingHelper = True

  180. 

  181.         # CancelableActionCallback Box

  182.         self.fCancelableActionBox = None

  183. 

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

  185.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  186. 

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

  188.         self.fFirstEngineInit = True

  189. 

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

  191.         self.fSavedSettings = {}

  192. 

  193.         # true if NSM server handles our window management

  194.         self.fWindowCloseHideGui = False

  195. 

  196.         if host.isControl:

  197.             self.fClientName         = "Carla-Control"

  198.             self.fSessionManagerName = "Control"

  199.         elif host.isPlugin:

  200.             self.fClientName         = "Carla-Plugin"

  201.             self.fSessionManagerName = "Plugin"

  202.         elif LADISH_APP_NAME:

  203.             self.fClientName         = LADISH_APP_NAME

  204.             self.fSessionManagerName = "LADISH"

  205.         elif NSM_URL and host.nsmOK:

  206.             self.fClientName         = "Carla.tmp"

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

  208.             self.fWindowCloseHideGui = True

  209.         else:

  210.             self.fClientName         = CARLA_CLIENT_NAME or "Carla"

  211.             self.fSessionManagerName = ""

  212. 

  213.         # ----------------------------------------------------------------------------------------------------

  214.         # Internal stuff (patchbay)

  215. 

  216.         self.fPeaksCleared = True

  217. 

  218.         self.fExternalPatchbay = False

  219.         self.fSelectedPlugins  = []

  220. 

  221.         self.fCanvasWidth  = 0

  222.         self.fCanvasHeight = 0

  223.         self.fMiniCanvasUpdateTimeout = 0

  224. 

  225.         self.fWithCanvas = withCanvas

  226. 

  227.         # ----------------------------------------------------------------------------------------------------

  228.         # Internal stuff (logs)

  229. 

  230.         self.autoscrollOnNewLog = True

  231.         self.lastLogSliderPos = 0

  232. 

  233.         # ----------------------------------------------------------------------------------------------------

  234.         # Set up GUI (engine stopped)

  235. 

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

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

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

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

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

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

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

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

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

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

  246. 

  247.             if self.host.isControl:

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

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

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

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

  252.             else:

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

  254. 

  255.                 if not withCanvas:

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

  257. 

  258.         else:

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

  260. 

  261.             if WINDOWS:

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

  263. 

  264.         if self.host.isControl:

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

  266.         else:

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

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

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

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

  271. 

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

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

  274. 

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

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

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

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

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

  280. 

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

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

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

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

  285. 

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

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

  288. 

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

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

  291. 

  292.         if not withCanvas:

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

  310.             self.ui.tw_miniCanvas.hide()

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

  312.             if WINDOWS:

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

  314. 

  315.         # ----------------------------------------------------------------------------------------------------

  316.         # Set up GUI (disk)

  317. 

  318.         exts = gCarla.utils.get_supported_file_extensions()

  319. 

  320.         self.fDirModel = QFileSystemModel(self)

  321.         self.fDirModel.setRootPath(HOME)

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

  323. 

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

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

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

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

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

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

  330. 

  331.         # ----------------------------------------------------------------------------------------------------

  332.         # Set up GUI (transport)

  333. 

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

  335.         minValueWidth = fontMetricsHorizontalAdvance(fontMetrics, "000|00|0000")

  336.         minLabelWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_frame.text())

  337. 

  338.         labelTimeWidth = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_time.text())

  339.         labelBBTWidth  = fontMetricsHorizontalAdvance(fontMetrics, self.ui.label_transport_bbt.text())

  340. 

  341.         if minLabelWidth < labelTimeWidth:

  342.             minLabelWidth = labelTimeWidth

  343.         if minLabelWidth < labelBBTWidth:

  344.             minLabelWidth = labelBBTWidth

  345. 

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

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

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

  349. 

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

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

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

  353. 

  354.         if host.isPlugin:

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

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

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

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

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

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

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

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

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

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

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

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

  367. 

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

  369. 

  370.         # ----------------------------------------------------------------------------------------------------

  371.         # Set up GUI (rack)

  372. 

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

  374. 

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

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

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

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

  379. 

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

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

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

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

  384. 

  385.         self.updateStyle()

  386. 

  387.         self.ui.rack.setStyleSheet("""

  388.           CarlaRackList#CarlaRackList {

  389.             background-color: black;

  390.           }

  391.         """)

  392. 

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

  394.         # Set up GUI (patchbay)

  395. 

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

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

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

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

  400. 

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

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

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

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

  405. 

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

  407.         self.ui.keyboard   = self.ui.scrollArea.keyboard

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

  409. 

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

  411. 

  412.         self.ui.miniCanvasPreview.setRealParent(self)

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

  414. 

  415.         # ----------------------------------------------------------------------------------------------------

  416.         # Set up GUI (logs)

  417. 

  418.         self.ui.text_logs.textChanged.connect(self.slot_logButtonsState)

  419.         self.ui.logs_clear.clicked.connect(self.slot_logClear)

  420.         self.ui.logs_save.clicked.connect(self.slot_logSave)

  421.         self.ui.logs_autoscroll.stateChanged.connect(self.slot_toggleLogAutoscroll)

  422.         self.ui.text_logs.verticalScrollBar().valueChanged.connect(self.slot_logSliderMoved)

  423. 

  424.         # ----------------------------------------------------------------------------------------------------

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

  426. 

  427.         if MACOS:

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

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

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

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

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

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

  434. 

  435.         # ----------------------------------------------------------------------------------------------------

  436.         # Load Settings

  437. 

  438.         self.loadSettings(True)

  439. 

  440.         # ----------------------------------------------------------------------------------------------------

  441.         # Set-up Canvas

  442. 

  443.         if withCanvas:

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

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

  446. 

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

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

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

  450. 

  451.             self.setupCanvas()

  452. 

  453.         # ----------------------------------------------------------------------------------------------------

  454.         # Set-up Icons

  455. 

  456.         if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  457.             self.ui.act_file_connect.setIcon(getIcon('network-connect', 16, 'svgz'))

  458.             self.ui.act_file_refresh.setIcon(getIcon('view-refresh', 16, 'svgz'))

  459.             self.ui.act_file_new.setIcon(getIcon('document-new', 16, 'svgz'))

  460.             self.ui.act_file_open.setIcon(getIcon('document-open', 16, 'svgz'))

  461.             self.ui.act_file_save.setIcon(getIcon('document-save', 16, 'svgz'))

  462.             self.ui.act_file_save_as.setIcon(getIcon('document-save-as', 16, 'svgz'))

  463.             self.ui.act_file_quit.setIcon(getIcon('application-exit', 16, 'svgz'))

  464.             self.ui.act_engine_start.setIcon(getIcon('media-playback-start', 16, 'svgz'))

  465.             self.ui.act_engine_stop.setIcon(getIcon('media-playback-stop', 16, 'svgz'))

  466.             self.ui.act_engine_panic.setIcon(getIcon('dialog-warning', 16, 'svgz'))

  467.             self.ui.act_engine_config.setIcon(getIcon('configure', 16, 'svgz'))

  468.             self.ui.act_plugin_add.setIcon(getIcon('list-add', 16, 'svgz'))

  469.             self.ui.act_plugin_add_jack.setIcon(getIcon('list-add', 16, 'svgz'))

  470.             self.ui.act_plugin_remove_all.setIcon(getIcon('edit-delete', 16, 'svgz'))

  471.             self.ui.act_canvas_arrange.setIcon(getIcon('view-sort-ascending', 16, 'svgz'))

  472.             self.ui.act_canvas_refresh.setIcon(getIcon('view-refresh', 16, 'svgz'))

  473.             self.ui.act_canvas_zoom_fit.setIcon(getIcon('zoom-fit-best', 16, 'svgz'))

  474.             self.ui.act_canvas_zoom_in.setIcon(getIcon('zoom-in', 16, 'svgz'))

  475.             self.ui.act_canvas_zoom_out.setIcon(getIcon('zoom-out', 16, 'svgz'))

  476.             self.ui.act_canvas_zoom_100.setIcon(getIcon('zoom-original', 16, 'svgz'))

  477.             self.ui.act_settings_configure.setIcon(getIcon('configure', 16, 'svgz'))

  478.             self.ui.b_disk_add.setIcon(getIcon('list-add', 16, 'svgz'))

  479.             self.ui.b_disk_remove.setIcon(getIcon('list-remove', 16, 'svgz'))

  480.             self.ui.b_transport_play.setIcon(getIcon('media-playback-start', 16, 'svgz'))

  481.             self.ui.b_transport_stop.setIcon(getIcon('media-playback-stop', 16, 'svgz'))

  482.             self.ui.b_transport_backwards.setIcon(getIcon('media-seek-backward', 16, 'svgz'))

  483.             self.ui.b_transport_forwards.setIcon(getIcon('media-seek-forward', 16, 'svgz'))

  484.             self.ui.logs_clear.setIcon(getIcon('edit-clear', 16, 'svgz'))

  485.             self.ui.logs_save.setIcon(getIcon('document-save', 16, 'svgz'))

  486. 

  487.         # ----------------------------------------------------------------------------------------------------

  488.         # Connect actions to functions

  489. 

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

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

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

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

  494. 

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

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

  497.         self.ui.act_engine_panic.triggered.connect(self.slot_pluginsDisable)

  498.         self.ui.act_engine_config.triggered.connect(self.slot_engineConfig)

  499. 

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

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

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

  503. 

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

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

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

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

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

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

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

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

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

  513. 

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

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

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

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

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

  519. 

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

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

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

  523. 

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

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

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

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

  528. 

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

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

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

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

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

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

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

  536. 

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

  538. 

  539.         self.ui.listWidget.customContextMenuRequested.connect(self.slot_showPluginActionsMenu)

  540. 

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

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

  543. 

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

  545. 

  546.         if withCanvas:

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

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

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

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

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

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

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

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

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

  556.             self.ui.act_canvas_save_image_2x.triggered.connect(self.slot_canvasSaveImage)

  557.             self.ui.act_canvas_save_image_4x.triggered.connect(self.slot_canvasSaveImage)

  558.             self.ui.act_canvas_copy_clipboard.triggered.connect(self.slot_canvasCopyToClipboard)

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

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

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

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

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

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

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

  566. 

  567.         self.SIGUSR1.connect(self.slot_handleSIGUSR1)

  568.         self.SIGTERM.connect(self.slot_handleSIGTERM)

  569. 

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

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

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

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

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

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

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

  577. 

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

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

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

  581. 

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

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

  584. 

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

  586. 

  587.         if withCanvas:

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

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

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

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

  592.             host.PatchbayClientPositionChangedCallback.connect(self.slot_handlePatchbayClientPositionChangedCallback)

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

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

  595.             host.PatchbayPortChangedCallback.connect(self.slot_handlePatchbayPortChangedCallback)

  596.             host.PatchbayPortGroupAddedCallback.connect(self.slot_handlePatchbayPortGroupAddedCallback)

  597.             host.PatchbayPortGroupRemovedCallback.connect(self.slot_handlePatchbayPortGroupRemovedCallback)

  598.             host.PatchbayPortGroupChangedCallback.connect(self.slot_handlePatchbayPortGroupChangedCallback)

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

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

  601. 

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

  603. 

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

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

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

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

  608.         host.InlineDisplayRedrawCallback.connect(self.slot_handleInlineDisplayRedrawCallback)

  609. 

  610.         # ----------------------------------------------------------------------------------------------------

  611.         # Final setup

  612. 

  613.         self.ui.text_logs.clear()

  614.         self.slot_logButtonsState(False)

  615.         self.setProperWindowTitle()

  616. 

  617.         # Disable non-supported features

  618.         features = gCarla.utils.get_supported_features()

  619. 

  620.         if "link" not in features:

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

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

  623. 

  624.         if "juce" not in features:

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

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

  627. 

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

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

  630.             self.startTimers()

  631. 

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

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

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

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

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

  637. 

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

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

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

  641. 

  642.         # Load initial project file if set

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

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

  645. 

  646.             if projectFile:

  647.                 self.loadProjectLater(projectFile)

  648. 

  649.         # For NSM we wait for the open message

  650.         if NSM_URL and host.nsmOK:

  651.             host.nsm_ready(NSM_CALLBACK_INIT)

  652.             return

  653. 

  654.         if not host.isControl:

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

  656. 

  657.     # --------------------------------------------------------------------------------------------------------

  658.     # Manage visibility state, needed for NSM

  659. 

  660.     def hideForNSM(self):

  661.         for pitem in reversed(self.fPluginList):

  662.             if pitem is None:

  663.                 continue

  664.             pitem.getWidget().hideCustomUI()

  665.         self.hide()

  666. 

  667.     def showIfNeeded(self):

  668.         if self.host.nsmOK:

  669.             self.ui.act_file_quit.setText(self.tr("Hide"))

  670.             QApplication.instance().setQuitOnLastWindowClosed(False)

  671.         else:

  672.             self.show()

  673. 

  674.     # --------------------------------------------------------------------------------------------------------

  675.     # Setup

  676. 

  677.     def compactPlugin(self, pluginId):

  678.         if pluginId > self.fPluginCount:

  679.             return

  680. 

  681.         pitem = self.fPluginList[pluginId]

  682. 

  683.         if pitem is None:

  684.             return

  685. 

  686.         pitem.recreateWidget(True)

  687. 

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

  689.         if pluginId > self.fPluginCount:

  690.             return

  691. 

  692.         pitem = self.fPluginList[pluginId]

  693. 

  694.         if pitem is None:

  695.             return

  696. 

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

  698.         pitem.recreateWidget(newColor = color)

  699. 

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

  701.         if pluginId > self.fPluginCount:

  702.             return

  703. 

  704.         pitem = self.fPluginList[pluginId]

  705. 

  706.         if pitem is None:

  707.             return

  708. 

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

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

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

  712.         else:

  713.             pitem.recreateWidget(newSkin = skin)

  714. 

  715.     def findPluginInPatchbay(self, pluginId):

  716.         if pluginId > self.fPluginCount:

  717.             return

  718. 

  719.         if self.fExternalPatchbay:

  720.             self.slot_canvasShowInternal()

  721. 

  722.         if not patchcanvas.focusGroupUsingPluginId(pluginId):

  723.             name = self.host.get_plugin_info(pluginId)['name']

  724.             if not patchcanvas.focusGroupUsingGroupName(name):

  725.                 return

  726. 

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

  728. 

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

  730.         if pluginIdA == pluginIdB:

  731.             return

  732.         if pluginIdA < 0 or pluginIdB < 0:

  733.             return

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

  735.             return

  736. 

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

  738. 

  739.         itemA = self.fPluginList[pluginIdA]

  740.         compactA = itemA.isCompacted()

  741.         guiShownA = itemA.isGuiShown()

  742. 

  743.         itemB = self.fPluginList[pluginIdB]

  744.         compactB = itemB.isCompacted()

  745.         guiShownB = itemB.isGuiShown()

  746. 

  747.         itemA.setPluginId(pluginIdA)

  748.         itemA.recreateWidget2(compactB, guiShownB)

  749. 

  750.         itemB.setPluginId(pluginIdB)

  751.         itemB.recreateWidget2(compactA, guiShownA)

  752. 

  753.         if self.fWithCanvas:

  754.             self.slot_canvasRefresh()

  755. 

  756.     def setLoadRDFsNeeded(self):

  757.         self.fLadspaRdfNeedsUpdate = True

  758. 

  759.     def setProperWindowTitle(self):

  760.         title = self.fClientName

  761. 

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

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

  764.         if self.fSessionManagerName:

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

  766. 

  767.         self.setWindowTitle(title)

  768. 

  769.     def updateBufferSize(self, newBufferSize):

  770.         if self.fBufferSize == newBufferSize:

  771.             return

  772.         self.fBufferSize = newBufferSize

  773.         self.ui.cb_buffer_size.clear()

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

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

  776. 

  777.     def updateSampleRate(self, newSampleRate):

  778.         if self.fSampleRate == newSampleRate:

  779.             return

  780.         self.fSampleRate = newSampleRate

  781.         self.ui.cb_sample_rate.clear()

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

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

  784.         self.refreshTransport(True)

  785. 

  786.     # --------------------------------------------------------------------------------------------------------

  787.     # Files

  788. 

  789.     def loadProjectNow(self):

  790.         if not self.fProjectFilename:

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

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

  793.             return

  794. 

  795.         self.projectLoadingStarted()

  796.         self.fIsProjectLoading = True

  797. 

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

  799.             self.fIsProjectLoading = False

  800.             self.projectLoadingFinished(True)

  801. 

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

  803.                              self.host.get_last_error(),

  804.                              QMessageBox.Ok, QMessageBox.Ok)

  805. 

  806.     def loadProjectLater(self, filename):

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

  808.         self.setProperWindowTitle()

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

  810. 

  811.     def saveProjectNow(self):

  812.         if not self.fProjectFilename:

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

  814. 

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

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

  817.                              self.host.get_last_error(),

  818.                              QMessageBox.Ok, QMessageBox.Ok)

  819.             return

  820. 

  821.     def projectLoadingStarted(self):

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

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

  824. 

  825.     def projectLoadingFinished(self, refreshCanvas):

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

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

  828. 

  829.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE or not self.fWithCanvas:

  830.             return

  831. 

  832.         if refreshCanvas and not self.loadExternalCanvasGroupPositionsIfNeeded(self.fProjectFilename):

  833.             QTimer.singleShot(1, self.slot_canvasRefresh)

  834. 

  835.     def loadExternalCanvasGroupPositionsIfNeeded(self, filename):

  836.         extrafile = filename.rsplit(".",1)[0]+".json"

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

  838.             return False

  839. 

  840.         with open(filename, "r") as fh:

  841.             if "".join(fh.readlines(90)).find("<CARLA-PROJECT VERSION='2.0'>") < 0:

  842.                 return False

  843. 

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

  845.             try:

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

  847.             except:

  848.                 return False

  849. 

  850.         print("NOTICE: loading old-style canvas group positions via legacy json file")

  851.         patchcanvas.restoreGroupPositions(canvasdata)

  852.         QTimer.singleShot(1, self.slot_canvasRefresh)

  853.         return True

  854. 

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

  856.     # Files (menu actions)

  857. 

  858.     @pyqtSlot()

  859.     def slot_fileNew(self):

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

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

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

  863.             return

  864. 

  865.         self.pluginRemoveAll()

  866.         self.fProjectFilename = ""

  867.         self.setProperWindowTitle()

  868.         self.host.clear_project_filename()

  869. 

  870.     @pyqtSlot()

  871.     def slot_fileOpen(self):

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

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

  874. 

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

  876.         if not filename:

  877.             return

  878. 

  879.         newFile = True

  880. 

  881.         if self.fPluginCount > 0:

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

  883.                                                                           QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

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

  885. 

  886.         if newFile:

  887.             self.pluginRemoveAll()

  888.             self.fProjectFilename = filename

  889.             self.setProperWindowTitle()

  890.             self.loadProjectNow()

  891.         else:

  892.             filenameOld = self.fProjectFilename

  893.             self.fProjectFilename = filename

  894.             self.loadProjectNow()

  895.             self.fProjectFilename = filenameOld

  896. 

  897.     @pyqtSlot()

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

  899.         if self.fProjectFilename and not saveAs:

  900.             return self.saveProjectNow()

  901. 

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

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

  904. 

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

  906.         if not filename:

  907.             return

  908. 

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

  910.             filename += ".carxp"

  911. 

  912.         if self.fProjectFilename != filename:

  913.             self.fProjectFilename = filename

  914.             self.setProperWindowTitle()

  915. 

  916.         self.saveProjectNow()

  917. 

  918.     @pyqtSlot()

  919.     def slot_fileSaveAs(self):

  920.         self.slot_fileSave(True)

  921. 

  922.     @pyqtSlot()

  923.     def slot_loadProjectNow(self):

  924.         self.loadProjectNow()

  925. 

  926.     # --------------------------------------------------------------------------------------------------------

  927.     # Engine (menu actions)

  928. 

  929.     @pyqtSlot()

  930.     def slot_engineStart(self):

  931.         audioDriver = setEngineSettings(self.host)

  932.         firstInit   = self.fFirstEngineInit

  933. 

  934.         self.fFirstEngineInit = False

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

  936. 

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

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

  939.                 settings = QSafeSettings()

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

  941.                 del settings

  942.                 if lastBpm >= 20.0:

  943.                     self.host.transport_bpm(lastBpm)

  944.             return

  945. 

  946.         elif firstInit:

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

  948.             return

  949. 

  950.         audioError = self.host.get_last_error()

  951. 

  952.         if audioError:

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

  954.         else:

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

  956. 

  957.     @pyqtSlot()

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

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

  960. 

  961.         if self.fPluginCount == 0 or not self.host.is_engine_running():

  962.             self.engineStopFinal()

  963.             return True

  964. 

  965.         if not forced:

  966.             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"

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

  968.                                                                          QMessageBox.Yes | QMessageBox.No, QMessageBox.No)

  969.             if ask != QMessageBox.Yes:

  970.                 return False

  971. 

  972.         return self.slot_engineStopTryAgain()

  973. 

  974.     @pyqtSlot()

  975.     def slot_engineConfig(self):

  976.         dialog = RuntimeDriverSettingsW(self.fParentOrSelf, self.host)

  977. 

  978.         if not dialog.exec_():

  979.             return

  980. 

  981.         audioDevice, bufferSize, sampleRate = dialog.getValues()

  982. 

  983.         if self.host.is_engine_running():

  984.             self.host.set_engine_buffer_size_and_sample_rate(bufferSize, sampleRate)

  985.         else:

  986.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  987.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, bufferSize, "")

  988.             self.host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, sampleRate, "")

  989. 

  990.     @pyqtSlot()

  991.     def slot_engineStopTryAgain(self):

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

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

  994.             return False

  995. 

  996.         self.engineStopFinal()

  997.         return True

  998. 

  999.     def engineStopFinal(self):

  1000.         patchcanvas.handleAllPluginsRemoved()

  1001.         self.killTimers()

  1002. 

  1003.         if self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1004.             self.removeAllPlugins()

  1005.         else:

  1006.             self.fProjectFilename = ""

  1007.             self.setProperWindowTitle()

  1008.             if self.fPluginCount != 0:

  1009.                 self.fCurrentlyRemovingAllPlugins = True

  1010.                 self.projectLoadingStarted()

  1011. 

  1012.         if self.host.is_engine_running() and not self.host.remove_all_plugins():

  1013.             self.ui.text_logs.appendPlainText("Failed to remove all plugins, error was:")

  1014.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1015. 

  1016.         if not self.host.engine_close():

  1017.             self.ui.text_logs.appendPlainText("Failed to stop engine, error was:")

  1018.             self.ui.text_logs.appendPlainText(self.host.get_last_error())

  1019. 

  1020.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  1021.             self.close()

  1022.         elif self.fCustomStopAction == self.CUSTOM_ACTION_PROJECT_LOAD:

  1023.             self.slot_engineStart()

  1024.             self.loadProjectNow()

  1025.             self.host.nsm_ready(NSM_CALLBACK_OPEN)

  1026. 

  1027.         self.fCustomStopAction = self.CUSTOM_ACTION_NONE

  1028. 

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

  1030.     # Engine (host callbacks)

  1031. 

  1032.     @pyqtSlot(int, int, int, int, float, str)

  1033.     def slot_handleEngineStartedCallback(self, pluginCount, processMode, transportMode, bufferSize, sampleRate, driverName):

  1034.         self.ui.menu_PluginMacros.setEnabled(True)

  1035.         self.ui.menu_Canvas.setEnabled(True)

  1036.         self.ui.w_transport.setEnabled(True)

  1037. 

  1038.         self.ui.act_canvas_show_internal.blockSignals(True)

  1039.         self.ui.act_canvas_show_external.blockSignals(True)

  1040. 

  1041.         if processMode == ENGINE_PROCESS_MODE_PATCHBAY and not self.host.isPlugin:

  1042.             self.ui.act_canvas_show_internal.setChecked(True)

  1043.             self.ui.act_canvas_show_internal.setVisible(True)

  1044.             self.ui.act_canvas_show_external.setChecked(False)

  1045.             self.ui.act_canvas_show_external.setVisible(True)

  1046.             self.fExternalPatchbay = False

  1047.         else:

  1048.             self.ui.act_canvas_show_internal.setChecked(False)

  1049.             self.ui.act_canvas_show_internal.setVisible(False)

  1050.             self.ui.act_canvas_show_external.setChecked(True)

  1051.             self.ui.act_canvas_show_external.setVisible(False)

  1052.             self.fExternalPatchbay = not self.host.isPlugin

  1053. 

  1054.         self.ui.act_canvas_show_internal.blockSignals(False)

  1055.         self.ui.act_canvas_show_external.blockSignals(False)

  1056. 

  1057.         if not (self.host.isControl or self.host.isPlugin):

  1058.             canSave = (self.fProjectFilename and os.path.exists(self.fProjectFilename)) or not self.fSessionManagerName

  1059.             self.ui.act_file_save.setEnabled(canSave)

  1060.             self.ui.act_engine_start.setEnabled(False)

  1061.             self.ui.act_engine_stop.setEnabled(True)

  1062. 

  1063.         if not self.host.isPlugin:

  1064.             self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1065. 

  1066.         if self.host.isPlugin or not self.fSessionManagerName:

  1067.             self.ui.act_file_open.setEnabled(True)

  1068.             self.ui.act_file_save_as.setEnabled(True)

  1069. 

  1070.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1071.         self.ui.cb_transport_jack.setEnabled(driverName == "JACK" and processMode != ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS)

  1072. 

  1073.         if self.ui.cb_transport_link.isEnabled():

  1074.             self.ui.cb_transport_link.setChecked(":link:" in self.host.transportExtra)

  1075. 

  1076.         self.updateBufferSize(bufferSize)

  1077.         self.updateSampleRate(int(sampleRate))

  1078.         self.refreshRuntimeInfo(0.0, 0)

  1079.         self.startTimers()

  1080. 

  1081.         self.ui.text_logs.appendPlainText("======= Engine started ========")

  1082.         self.ui.text_logs.appendPlainText("Carla engine started, details:")

  1083.         self.ui.text_logs.appendPlainText("  Driver name:  %s" % driverName)

  1084.         self.ui.text_logs.appendPlainText("  Sample rate:  %i" % int(sampleRate))

  1085.         self.ui.text_logs.appendPlainText("  Process mode: %s" % processMode2Str(processMode))

  1086. 

  1087.     @pyqtSlot()

  1088.     def slot_handleEngineStoppedCallback(self):

  1089.         self.ui.text_logs.appendPlainText("======= Engine stopped ========")

  1090. 

  1091.         if self.fWithCanvas:

  1092.             patchcanvas.clear()

  1093. 

  1094.         self.killTimers()

  1095. 

  1096.         # just in case

  1097.         self.removeAllPlugins()

  1098.         self.refreshRuntimeInfo(0.0, 0)

  1099. 

  1100.         self.ui.menu_PluginMacros.setEnabled(False)

  1101.         self.ui.menu_Canvas.setEnabled(False)

  1102.         self.ui.w_transport.setEnabled(False)

  1103. 

  1104.         if not (self.host.isControl or self.host.isPlugin):

  1105.             self.ui.act_file_save.setEnabled(False)

  1106.             self.ui.act_engine_start.setEnabled(True)

  1107.             self.ui.act_engine_stop.setEnabled(False)

  1108. 

  1109.         if self.host.isPlugin or not self.fSessionManagerName:

  1110.             self.ui.act_file_open.setEnabled(False)

  1111.             self.ui.act_file_save_as.setEnabled(False)

  1112. 

  1113.     @pyqtSlot(int, str)

  1114.     def slot_handleTransportModeChangedCallback(self, transportMode, transportExtra):

  1115.         self.enableTransport(transportMode != ENGINE_TRANSPORT_MODE_DISABLED)

  1116. 

  1117.         self.ui.cb_transport_jack.setChecked(transportMode == ENGINE_TRANSPORT_MODE_JACK)

  1118.         self.ui.cb_transport_link.setChecked(":link:" in transportExtra)

  1119. 

  1120.     @pyqtSlot(int)

  1121.     def slot_handleBufferSizeChangedCallback(self, newBufferSize):

  1122.         self.updateBufferSize(newBufferSize)

  1123. 

  1124.     @pyqtSlot(float)

  1125.     def slot_handleSampleRateChangedCallback(self, newSampleRate):

  1126.         self.updateSampleRate(int(newSampleRate))

  1127. 

  1128.     @pyqtSlot(int, bool, str)

  1129.     def slot_handleCancelableActionCallback(self, pluginId, started, action):

  1130.         if self.fCancelableActionBox is not None:

  1131.             self.fCancelableActionBox.close()

  1132. 

  1133.         if started:

  1134.             self.fCancelableActionBox = QMessageBox(self)

  1135.             self.fCancelableActionBox.setIcon(QMessageBox.Information)

  1136.             self.fCancelableActionBox.setWindowTitle(self.tr("Action in progress"))

  1137.             self.fCancelableActionBox.setText(action)

  1138.             self.fCancelableActionBox.setInformativeText(self.tr("An action is in progress, please wait..."))

  1139.             self.fCancelableActionBox.setStandardButtons(QMessageBox.Cancel)

  1140.             self.fCancelableActionBox.setDefaultButton(QMessageBox.Cancel)

  1141.             self.fCancelableActionBox.buttonClicked.connect(self.slot_canlableActionBoxClicked)

  1142.             self.fCancelableActionBox.show()

  1143. 

  1144.         else:

  1145.             self.fCancelableActionBox = None

  1146. 

  1147.     @pyqtSlot()

  1148.     def slot_canlableActionBoxClicked(self):

  1149.         self.host.cancel_engine_action()

  1150. 

  1151.     @pyqtSlot()

  1152.     def slot_handleProjectLoadFinishedCallback(self):

  1153.         self.fIsProjectLoading = False

  1154.         self.projectLoadingFinished(False)

  1155. 

  1156.     # --------------------------------------------------------------------------------------------------------

  1157.     # Plugins

  1158. 

  1159.     def removeAllPlugins(self):

  1160.         self.ui.act_plugin_remove_all.setEnabled(False)

  1161.         patchcanvas.handleAllPluginsRemoved()

  1162. 

  1163.         while self.ui.listWidget.takeItem(0):

  1164.             pass

  1165. 

  1166.         self.clearSideStuff()

  1167. 

  1168.         for pitem in self.fPluginList:

  1169.             if pitem is None:

  1170.                 continue

  1171. 

  1172.             pitem.close()

  1173.             del pitem

  1174. 

  1175.         self.fPluginCount = 0

  1176.         self.fPluginList  = []

  1177. 

  1178.     # --------------------------------------------------------------------------------------------------------

  1179.     # Plugins (menu actions)

  1180. 

  1181.     def showAddPluginDialog(self):

  1182.         if self.fPluginDatabaseDialog is None:

  1183.             self.fPluginDatabaseDialog = PluginDatabaseW(self.fParentOrSelf, self.host,

  1184.                                                          self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS])

  1185.         dialog = self.fPluginDatabaseDialog

  1186.         dialog.hasLoadedLv2Plugins = self.fHasLoadedLv2Plugins

  1187. 

  1188.         ret = dialog.exec_()

  1189. 

  1190.         if dialog.fFavoritePluginsChanged:

  1191.             self.fFavoritePlugins = dialog.fFavoritePlugins

  1192. 

  1193.         if not ret:

  1194.             return

  1195. 

  1196.         if not self.host.is_engine_running():

  1197.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1198.             return

  1199. 

  1200.         btype    = dialog.fRetPlugin['build']

  1201.         ptype    = dialog.fRetPlugin['type']

  1202.         filename = dialog.fRetPlugin['filename']

  1203.         label    = dialog.fRetPlugin['label']

  1204.         uniqueId = dialog.fRetPlugin['uniqueId']

  1205.         extraPtr = self.getExtraPtr(dialog.fRetPlugin)

  1206. 

  1207.         return (btype, ptype, filename, label, uniqueId, extraPtr)

  1208. 

  1209.     def showAddJackAppDialog(self):

  1210.         dialog = JackApplicationW(self.fParentOrSelf, self.fProjectFilename)

  1211. 

  1212.         if not dialog.exec_():

  1213.             return

  1214. 

  1215.         if not self.host.is_engine_running():

  1216.             QMessageBox.warning(self, self.tr("Warning"), self.tr("Cannot add new plugins while engine is stopped"))

  1217.             return

  1218. 

  1219.         return dialog.getCommandAndFlags()

  1220. 

  1221.     @pyqtSlot()

  1222.     def slot_favoritePluginAdd(self):

  1223.         plugin = self.sender().data()

  1224. 

  1225.         if plugin is None:

  1226.             return

  1227. 

  1228.         if not self.host.add_plugin(plugin['build'], plugin['type'], plugin['filename'], None,

  1229.                                     plugin['label'], plugin['uniqueId'], None, PLUGIN_OPTIONS_NULL):

  1230.             # remove plugin from favorites

  1231.             try:

  1232.                 self.fFavoritePlugins.remove(plugin)

  1233.             except ValueError:

  1234.                 pass

  1235.             else:

  1236.                 settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1237.                 settingsDBf.setValue("PluginDatabase/Favorites", self.fFavoritePlugins)

  1238.                 settingsDBf.sync()

  1239.                 del settingsDBf

  1240. 

  1241.             CustomMessageBox(self,

  1242.                              QMessageBox.Critical,

  1243.                              self.tr("Error"),

  1244.                              self.tr("Failed to load plugin"),

  1245.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1246. 

  1247.     @pyqtSlot()

  1248.     def slot_showPluginActionsMenu(self):

  1249.         menu = QMenu(self)

  1250. 

  1251.         menu.addSection("Plugins")

  1252.         menu.addAction(self.ui.act_plugin_add)

  1253. 

  1254.         if len(self.fFavoritePlugins) != 0:

  1255.             fmenu = QMenu("Add from favorites", self)

  1256.             for p in self.fFavoritePlugins:

  1257.                 act = fmenu.addAction(p['name'])

  1258.                 act.setData(p)

  1259.                 act.triggered.connect(self.slot_favoritePluginAdd)

  1260.             menu.addMenu(fmenu)

  1261. 

  1262.         menu.addAction(self.ui.act_plugin_remove_all)

  1263. 

  1264.         menu.addSection("All plugins (macros)")

  1265.         menu.addAction(self.ui.act_plugins_enable)

  1266.         menu.addAction(self.ui.act_plugins_disable)

  1267.         menu.addSeparator()

  1268.         menu.addAction(self.ui.act_plugins_volume100)

  1269.         menu.addAction(self.ui.act_plugins_mute)

  1270.         menu.addSeparator()

  1271.         menu.addAction(self.ui.act_plugins_wet100)

  1272.         menu.addAction(self.ui.act_plugins_bypass)

  1273.         menu.addSeparator()

  1274.         menu.addAction(self.ui.act_plugins_center)

  1275.         menu.addSeparator()

  1276.         menu.addAction(self.ui.act_plugins_compact)

  1277.         menu.addAction(self.ui.act_plugins_expand)

  1278. 

  1279.         menu.exec_(QCursor.pos())

  1280. 

  1281.     @pyqtSlot()

  1282.     def slot_pluginAdd(self):

  1283.         data = self.showAddPluginDialog()

  1284. 

  1285.         if data is None:

  1286.             return

  1287. 

  1288.         btype, ptype, filename, label, uniqueId, extraPtr = data

  1289. 

  1290.         if not self.host.add_plugin(btype, ptype, filename, None, label, uniqueId, extraPtr, PLUGIN_OPTIONS_NULL):

  1291.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1292.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1293. 

  1294.     @pyqtSlot()

  1295.     def slot_confirmRemoveAll(self):

  1296.         if self.fPluginCount == 0:

  1297.             return

  1298. 

  1299.         if QMessageBox.question(self, self.tr("Remove All"),

  1300.                                       self.tr("Are you sure you want to remove all plugins?"),

  1301.                                       QMessageBox.Yes|QMessageBox.No) == QMessageBox.No:

  1302.             return

  1303. 

  1304.         self.pluginRemoveAll()

  1305. 

  1306.     def pluginRemoveAll(self):

  1307.         if self.fPluginCount == 0:

  1308.             return

  1309. 

  1310.         self.fCurrentlyRemovingAllPlugins = True

  1311.         self.projectLoadingStarted()

  1312. 

  1313.         if not self.host.remove_all_plugins():

  1314.             self.projectLoadingFinished(True)

  1315.             self.fCurrentlyRemovingAllPlugins = False

  1316.             CustomMessageBox(self, QMessageBox.Warning, self.tr("Error"), self.tr("Operation failed"),

  1317.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1318. 

  1319.     @pyqtSlot()

  1320.     def slot_jackAppAdd(self):

  1321.         data = self.showAddJackAppDialog()

  1322. 

  1323.         if data is None:

  1324.             return

  1325. 

  1326.         filename, name, label = data

  1327. 

  1328.         if not filename:

  1329.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Cannot add jack application"),

  1330.                                    self.tr("command is empty"), QMessageBox.Ok, QMessageBox.Ok)

  1331.             return

  1332. 

  1333.         if not self.host.add_plugin(BINARY_NATIVE, PLUGIN_JACK, filename, name, label, 0, None, PLUGIN_OPTIONS_NULL):

  1334.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"), self.tr("Failed to load plugin"),

  1335.                                    self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  1336. 

  1337.     # --------------------------------------------------------------------------------------------------------

  1338.     # Plugins (macros)

  1339. 

  1340.     @pyqtSlot()

  1341.     def slot_pluginsEnable(self):

  1342.         if not self.host.is_engine_running():

  1343.             return

  1344. 

  1345.         for pitem in self.fPluginList:

  1346.             if pitem is None:

  1347.                 break

  1348. 

  1349.             pitem.getWidget().setActive(True, True, True)

  1350. 

  1351.     @pyqtSlot()

  1352.     def slot_pluginsDisable(self):

  1353.         if not self.host.is_engine_running():

  1354.             return

  1355. 

  1356.         for pitem in self.fPluginList:

  1357.             if pitem is None:

  1358.                 break

  1359. 

  1360.             pitem.getWidget().setActive(False, True, True)

  1361. 

  1362.     @pyqtSlot()

  1363.     def slot_pluginsVolume100(self):

  1364.         if not self.host.is_engine_running():

  1365.             return

  1366. 

  1367.         for pitem in self.fPluginList:

  1368.             if pitem is None:

  1369.                 break

  1370. 

  1371.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 1.0)

  1372. 

  1373.     @pyqtSlot()

  1374.     def slot_pluginsMute(self):

  1375.         if not self.host.is_engine_running():

  1376.             return

  1377. 

  1378.         for pitem in self.fPluginList:

  1379.             if pitem is None:

  1380.                 break

  1381. 

  1382.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_VOLUME, 0.0)

  1383. 

  1384.     @pyqtSlot()

  1385.     def slot_pluginsWet100(self):

  1386.         if not self.host.is_engine_running():

  1387.             return

  1388. 

  1389.         for pitem in self.fPluginList:

  1390.             if pitem is None:

  1391.                 break

  1392. 

  1393.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 1.0)

  1394. 

  1395.     @pyqtSlot()

  1396.     def slot_pluginsBypass(self):

  1397.         if not self.host.is_engine_running():

  1398.             return

  1399. 

  1400.         for pitem in self.fPluginList:

  1401.             if pitem is None:

  1402.                 break

  1403. 

  1404.             pitem.getWidget().setInternalParameter(PLUGIN_CAN_DRYWET, 0.0)

  1405. 

  1406.     @pyqtSlot()

  1407.     def slot_pluginsCenter(self):

  1408.         if not self.host.is_engine_running():

  1409.             return

  1410. 

  1411.         for pitem in self.fPluginList:

  1412.             if pitem is None:

  1413.                 break

  1414. 

  1415.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_LEFT, -1.0)

  1416.             pitem.getWidget().setInternalParameter(PARAMETER_BALANCE_RIGHT, 1.0)

  1417.             pitem.getWidget().setInternalParameter(PARAMETER_PANNING, 0.0)

  1418. 

  1419.     @pyqtSlot()

  1420.     def slot_pluginsCompact(self):

  1421.         for pitem in self.fPluginList:

  1422.             if pitem is None:

  1423.                 break

  1424.             pitem.compact()

  1425. 

  1426.     @pyqtSlot()

  1427.     def slot_pluginsExpand(self):

  1428.         for pitem in self.fPluginList:

  1429.             if pitem is None:

  1430.                 break

  1431.             pitem.expand()

  1432. 

  1433.     # --------------------------------------------------------------------------------------------------------

  1434.     # Plugins (host callbacks)

  1435. 

  1436.     @pyqtSlot(int, int, str)

  1437.     def slot_handlePluginAddedCallback(self, pluginId, pluginType, pluginName):

  1438.         if pluginId != self.fPluginCount:

  1439.             print("ERROR: pluginAdded mismatch Id:", pluginId, self.fPluginCount)

  1440.             pitem = self.getPluginItem(pluginId)

  1441.             pitem.recreateWidget()

  1442.             return

  1443. 

  1444.         pitem = self.ui.listWidget.createItem(pluginId, self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN])

  1445.         self.fPluginList.append(pitem)

  1446.         self.fPluginCount += 1

  1447. 

  1448.         self.ui.act_plugin_remove_all.setEnabled(self.fPluginCount > 0)

  1449. 

  1450.         if pluginType == PLUGIN_LV2:

  1451.             self.fHasLoadedLv2Plugins = True

  1452. 

  1453.     @pyqtSlot(int)

  1454.     def slot_handlePluginRemovedCallback(self, pluginId):

  1455.         if self.fWithCanvas:

  1456.             patchcanvas.handlePluginRemoved(pluginId)

  1457. 

  1458.         if pluginId in self.fSelectedPlugins:

  1459.             self.clearSideStuff()

  1460. 

  1461.         if self.fPluginCount == 0:

  1462.             return

  1463. 

  1464.         pitem = self.getPluginItem(pluginId)

  1465. 

  1466.         self.fPluginCount -= 1

  1467.         self.fPluginList.pop(pluginId)

  1468.         self.ui.listWidget.takeItem(pluginId)

  1469. 

  1470.         if pitem is not None:

  1471.             pitem.close()

  1472.             del pitem

  1473. 

  1474.         if self.fPluginCount == 0:

  1475.             self.ui.act_plugin_remove_all.setEnabled(False)

  1476.             if self.fCurrentlyRemovingAllPlugins:

  1477.                 self.fCurrentlyRemovingAllPlugins = False

  1478.                 self.projectLoadingFinished(False)

  1479.             return

  1480. 

  1481.         # push all plugins 1 slot back

  1482.         for i in range(pluginId, self.fPluginCount):

  1483.             pitem = self.fPluginList[i]

  1484.             pitem.setPluginId(i)

  1485. 

  1486.         self.ui.act_plugin_remove_all.setEnabled(True)

  1487. 

  1488.     # --------------------------------------------------------------------------------------------------------

  1489.     # Canvas

  1490. 

  1491.     def clearSideStuff(self):

  1492.         if self.fWithCanvas:

  1493.             self.scene.clearSelection()

  1494. 

  1495.         self.fSelectedPlugins = []

  1496. 

  1497.         self.ui.keyboard.allNotesOff(False)

  1498.         self.ui.scrollArea.setEnabled(False)

  1499. 

  1500.         self.fPeaksCleared = True

  1501.         self.ui.peak_in.displayMeter(1, 0.0, True)

  1502.         self.ui.peak_in.displayMeter(2, 0.0, True)

  1503.         self.ui.peak_out.displayMeter(1, 0.0, True)

  1504.         self.ui.peak_out.displayMeter(2, 0.0, True)

  1505. 

  1506.     def setupCanvas(self):

  1507.         pOptions = patchcanvas.options_t()

  1508.         pOptions.theme_name        = self.fSavedSettings[CARLA_KEY_CANVAS_THEME]

  1509.         pOptions.auto_hide_groups  = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS]

  1510.         pOptions.auto_select_items = self.fSavedSettings[CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS]

  1511.         pOptions.use_bezier_lines  = self.fSavedSettings[CARLA_KEY_CANVAS_USE_BEZIER_LINES]

  1512.         pOptions.antialiasing      = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING]

  1513.         pOptions.inline_displays   = self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS]

  1514. 

  1515.         if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY]:

  1516.             pOptions.eyecandy = patchcanvas.EYECANDY_FULL

  1517.         elif self.fSavedSettings[CARLA_KEY_CANVAS_EYE_CANDY]:

  1518.             pOptions.eyecandy = patchcanvas.EYECANDY_SMALL

  1519.         else:

  1520.             pOptions.eyecandy = patchcanvas.EYECANDY_NONE

  1521. 

  1522.         pFeatures = patchcanvas.features_t()

  1523.         pFeatures.group_info   = False

  1524.         pFeatures.group_rename = False

  1525.         pFeatures.port_info    = False

  1526.         pFeatures.port_rename  = False

  1527.         pFeatures.handle_group_pos = False

  1528. 

  1529.         patchcanvas.setOptions(pOptions)

  1530.         patchcanvas.setFeatures(pFeatures)

  1531.         patchcanvas.init("Carla2", self.scene, canvasCallback, False)

  1532. 

  1533.         tryCanvasSize = self.fSavedSettings[CARLA_KEY_CANVAS_SIZE].split("x")

  1534. 

  1535.         if len(tryCanvasSize) == 2 and tryCanvasSize[0].isdigit() and tryCanvasSize[1].isdigit():

  1536.             self.fCanvasWidth  = int(tryCanvasSize[0])

  1537.             self.fCanvasHeight = int(tryCanvasSize[1])

  1538.         else:

  1539.             self.fCanvasWidth  = CARLA_DEFAULT_CANVAS_SIZE_WIDTH

  1540.             self.fCanvasHeight = CARLA_DEFAULT_CANVAS_SIZE_HEIGHT

  1541. 

  1542.         patchcanvas.setCanvasSize(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1543.         patchcanvas.setInitialPos(self.fCanvasWidth / 2, self.fCanvasHeight / 2)

  1544.         self.ui.graphicsView.setSceneRect(0, 0, self.fCanvasWidth, self.fCanvasHeight)

  1545. 

  1546.         self.ui.miniCanvasPreview.setViewTheme(patchcanvas.canvas.theme.canvas_bg, patchcanvas.canvas.theme.rubberband_brush, patchcanvas.canvas.theme.rubberband_pen.color())

  1547.         self.ui.miniCanvasPreview.init(self.scene, self.fCanvasWidth, self.fCanvasHeight, self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING])

  1548. 

  1549.         if self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] != patchcanvas.ANTIALIASING_NONE:

  1550.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, True)

  1551. 

  1552.             fullAA = self.fSavedSettings[CARLA_KEY_CANVAS_ANTIALIASING] == patchcanvas.ANTIALIASING_FULL

  1553.             self.ui.graphicsView.setRenderHint(QPainter.SmoothPixmapTransform, fullAA)

  1554.             self.ui.graphicsView.setRenderHint(QPainter.TextAntialiasing, fullAA)

  1555. 

  1556.             if self.fSavedSettings[CARLA_KEY_CANVAS_USE_OPENGL] and hasGL:

  1557.                 self.ui.graphicsView.setRenderHint(QPainter.HighQualityAntialiasing, self.fSavedSettings[CARLA_KEY_CANVAS_HQ_ANTIALIASING])

  1558. 

  1559.         else:

  1560.             self.ui.graphicsView.setRenderHint(QPainter.Antialiasing, False)

  1561. 

  1562.         if self.fSavedSettings[CARLA_KEY_CANVAS_FULL_REPAINTS]:

  1563.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.FullViewportUpdate)

  1564.         else:

  1565.             self.ui.graphicsView.setViewportUpdateMode(QGraphicsView.MinimalViewportUpdate)

  1566. 

  1567.     def updateCanvasInitialPos(self):

  1568.         x = self.ui.graphicsView.horizontalScrollBar().value() + self.width()/4

  1569.         y = self.ui.graphicsView.verticalScrollBar().value() + self.height()/4

  1570.         patchcanvas.setInitialPos(x, y)

  1571. 

  1572.     def updateMiniCanvasLater(self):

  1573.         QTimer.singleShot(self.fMiniCanvasUpdateTimeout, self.ui.miniCanvasPreview.update)

  1574. 

  1575.     # --------------------------------------------------------------------------------------------------------

  1576.     # Canvas (menu actions)

  1577. 

  1578.     @pyqtSlot()

  1579.     def slot_canvasShowInternal(self):

  1580.         self.fExternalPatchbay = False

  1581.         self.ui.act_canvas_show_internal.blockSignals(True)

  1582.         self.ui.act_canvas_show_external.blockSignals(True)

  1583.         self.ui.act_canvas_show_internal.setChecked(True)

  1584.         self.ui.act_canvas_show_external.setChecked(False)

  1585.         self.ui.act_canvas_show_internal.blockSignals(False)

  1586.         self.ui.act_canvas_show_external.blockSignals(False)

  1587.         self.slot_canvasRefresh()

  1588. 

  1589.     @pyqtSlot()

  1590.     def slot_canvasShowExternal(self):

  1591.         self.fExternalPatchbay = True

  1592.         self.ui.act_canvas_show_internal.blockSignals(True)

  1593.         self.ui.act_canvas_show_external.blockSignals(True)

  1594.         self.ui.act_canvas_show_internal.setChecked(False)

  1595.         self.ui.act_canvas_show_external.setChecked(True)

  1596.         self.ui.act_canvas_show_internal.blockSignals(False)

  1597.         self.ui.act_canvas_show_external.blockSignals(False)

  1598.         self.slot_canvasRefresh()

  1599. 

  1600.     @pyqtSlot()

  1601.     def slot_canvasArrange(self):

  1602.         patchcanvas.arrange()

  1603. 

  1604.     @pyqtSlot()

  1605.     def slot_canvasRefresh(self):

  1606.         patchcanvas.clear()

  1607. 

  1608.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  1609.             return

  1610. 

  1611.         if self.host.is_engine_running():

  1612.             self.host.patchbay_refresh(self.fExternalPatchbay)

  1613. 

  1614.         self.updateMiniCanvasLater()

  1615. 

  1616.     @pyqtSlot()

  1617.     def slot_canvasZoomFit(self):

  1618.         self.scene.zoom_fit()

  1619. 

  1620.     @pyqtSlot()

  1621.     def slot_canvasZoomIn(self):

  1622.         self.scene.zoom_in()

  1623. 

  1624.     @pyqtSlot()

  1625.     def slot_canvasZoomOut(self):

  1626.         self.scene.zoom_out()

  1627. 

  1628.     @pyqtSlot()

  1629.     def slot_canvasZoomReset(self):

  1630.         self.scene.zoom_reset()

  1631. 

  1632.     def _canvasImageRender(self, zoom = 1.0):

  1633.         image   = QImage(self.scene.width()*zoom, self.scene.height()*zoom, QImage.Format_RGB32)

  1634.         painter = QPainter(image)

  1635.         painter.save()

  1636.         painter.setRenderHints(painter.renderHints() | QPainter.Antialiasing | QPainter.TextAntialiasing)

  1637.         self.scene.clearSelection()

  1638.         self.scene.render(painter)

  1639.         painter.restore()

  1640.         del painter

  1641.         return image

  1642. 

  1643.     def _canvasImageWrite(self, iw: QImageWriter, imgFormat: bytes, image: QImage):

  1644.         iw.setFormat(imgFormat)

  1645.         iw.setCompression(-1)

  1646.         if QT_VERSION >= 0x50500:

  1647.             iw.setOptimizedWrite(True)

  1648.         iw.write(image)

  1649. 

  1650.     @pyqtSlot()

  1651.     def slot_canvasSaveImage(self):

  1652.         if self.fProjectFilename:

  1653.             dir = QFileInfo(self.fProjectFilename).absoluteDir().absolutePath()

  1654.         else:

  1655.             dir = self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER]

  1656. 

  1657.         fileDialog = QFileDialog(self)

  1658.         fileDialog.setAcceptMode(QFileDialog.AcceptSave)

  1659.         fileDialog.setDirectory(dir)

  1660.         fileDialog.setFileMode(QFileDialog.AnyFile)

  1661.         fileDialog.setMimeTypeFilters(("image/png", "image/jpeg"))

  1662.         fileDialog.setNameFilter(self.tr("Images (*.png *.jpg)"))

  1663.         fileDialog.setOptions(QFileDialog.DontUseCustomDirectoryIcons)

  1664.         fileDialog.setWindowTitle(self.tr("Save Image"))

  1665. 

  1666.         ok = fileDialog.exec_()

  1667. 

  1668.         if not ok:

  1669.             return

  1670. 

  1671.         newPath = fileDialog.selectedFiles()

  1672. 

  1673.         if len(newPath) != 1:

  1674.             return

  1675. 

  1676.         newPath = newPath[0]

  1677. 

  1678.         if QT_VERSION >= 0x50900:

  1679.             if fileDialog.selectedMimeTypeFilter() == "image/jpeg":

  1680.                 imgFormat = b"JPG"

  1681.             else:

  1682.                 imgFormat = b"PNG"

  1683.         else:

  1684.             if newPath.lower().endswith((".jpg", ".jpeg")):

  1685.                 imgFormat = b"JPG"

  1686.             else:

  1687.                 imgFormat = b"PNG"

  1688. 

  1689.         sender = self.sender()

  1690.         if sender == self.ui.act_canvas_save_image_2x:

  1691.             zoom = 2.0

  1692.         elif sender == self.ui.act_canvas_save_image_4x:

  1693.             zoom = 4.0

  1694.         else:

  1695.             zoom = 1.0

  1696. 

  1697.         image = self._canvasImageRender(zoom)

  1698.         iw = QImageWriter(newPath)

  1699.         self._canvasImageWrite(iw, imgFormat, image)

  1700. 

  1701.     @pyqtSlot()

  1702.     def slot_canvasCopyToClipboard(self):

  1703.         buffer = QBuffer()

  1704.         buffer.open(QIODevice.WriteOnly)

  1705. 

  1706.         image = self._canvasImageRender()

  1707.         iw = QImageWriter(buffer, b"PNG")

  1708.         self._canvasImageWrite(iw, b"PNG", image)

  1709. 

  1710.         buffer.close()

  1711. 

  1712.         mimeData = QMimeData()

  1713.         mimeData.setData("image/png", buffer.buffer());

  1714. 

  1715.         QApplication.clipboard().setMimeData(mimeData)

  1716. 

  1717.     # --------------------------------------------------------------------------------------------------------

  1718.     # Canvas (canvas callbacks)

  1719. 

  1720.     @pyqtSlot()

  1721.     def slot_canvasSelectionChanged(self):

  1722.         self.updateMiniCanvasLater()

  1723. 

  1724.     @pyqtSlot(float)

  1725.     def slot_canvasScaleChanged(self, scale):

  1726.         self.ui.miniCanvasPreview.setViewScale(scale)

  1727. 

  1728.     @pyqtSlot(list)

  1729.     def slot_canvasPluginSelected(self, pluginList):

  1730.         self.ui.keyboard.allNotesOff(False)

  1731.         self.ui.scrollArea.setEnabled(len(pluginList) != 0) # and self.fPluginCount > 0

  1732.         self.fSelectedPlugins = pluginList

  1733. 

  1734.     # --------------------------------------------------------------------------------------------------------

  1735.     # Canvas (host callbacks)

  1736. 

  1737.     @pyqtSlot(int, int, int, str)

  1738.     def slot_handlePatchbayClientAddedCallback(self, clientId, clientIcon, pluginId, clientName):

  1739.         pcSplit = patchcanvas.SPLIT_UNDEF

  1740.         pcIcon  = patchcanvas.ICON_APPLICATION

  1741. 

  1742.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1743.             pcIcon = patchcanvas.ICON_PLUGIN

  1744.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1745.             pcIcon = patchcanvas.ICON_HARDWARE

  1746.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1747.             pass

  1748.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1749.             pcIcon = patchcanvas.ICON_DISTRHO

  1750.         elif clientIcon == PATCHBAY_ICON_FILE:

  1751.             pcIcon = patchcanvas.ICON_FILE

  1752. 

  1753.         patchcanvas.addGroup(clientId, clientName, pcSplit, pcIcon)

  1754. 

  1755.         self.updateMiniCanvasLater()

  1756. 

  1757.         if pluginId < 0:

  1758.             return

  1759.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1760.             print("Error mapping plugin to canvas client:", clientName)

  1761.             return

  1762. 

  1763.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1764.             hasCustomUI = False

  1765.             hasInlineDisplay = False

  1766.         else:

  1767.             hints = self.host.get_plugin_info(pluginId)['hints']

  1768.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1769.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1770. 

  1771.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1772. 

  1773.     @pyqtSlot(int)

  1774.     def slot_handlePatchbayClientRemovedCallback(self, clientId):

  1775.         patchcanvas.removeGroup(clientId)

  1776.         self.updateMiniCanvasLater()

  1777. 

  1778.     @pyqtSlot(int, str)

  1779.     def slot_handlePatchbayClientRenamedCallback(self, clientId, newClientName):

  1780.         patchcanvas.renameGroup(clientId, newClientName)

  1781.         self.updateMiniCanvasLater()

  1782. 

  1783.     @pyqtSlot(int, int, int)

  1784.     def slot_handlePatchbayClientDataChangedCallback(self, clientId, clientIcon, pluginId):

  1785.         pcIcon = patchcanvas.ICON_APPLICATION

  1786. 

  1787.         if clientIcon == PATCHBAY_ICON_PLUGIN:

  1788.             pcIcon = patchcanvas.ICON_PLUGIN

  1789.         if clientIcon == PATCHBAY_ICON_HARDWARE:

  1790.             pcIcon = patchcanvas.ICON_HARDWARE

  1791.         elif clientIcon == PATCHBAY_ICON_CARLA:

  1792.             pass

  1793.         elif clientIcon == PATCHBAY_ICON_DISTRHO:

  1794.             pcIcon = patchcanvas.ICON_DISTRHO

  1795.         elif clientIcon == PATCHBAY_ICON_FILE:

  1796.             pcIcon = patchcanvas.ICON_FILE

  1797. 

  1798.         patchcanvas.setGroupIcon(clientId, pcIcon)

  1799.         self.updateMiniCanvasLater()

  1800. 

  1801.         if pluginId < 0:

  1802.             return

  1803.         if pluginId >= self.fPluginCount and pluginId != MAIN_CARLA_PLUGIN_ID:

  1804.             print("sorry, can't map this plugin to canvas client", pluginId, self.fPluginCount)

  1805.             return

  1806. 

  1807.         if pluginId == MAIN_CARLA_PLUGIN_ID:

  1808.             hasCustomUI = False

  1809.             hasInlineDisplay = False

  1810.         else:

  1811.             hints = self.host.get_plugin_info(pluginId)['hints']

  1812.             hasCustomUI = bool(hints & PLUGIN_HAS_CUSTOM_UI)

  1813.             hasInlineDisplay = bool(hints & PLUGIN_HAS_INLINE_DISPLAY)

  1814. 

  1815.         patchcanvas.setGroupAsPlugin(clientId, pluginId, hasCustomUI, hasInlineDisplay)

  1816. 

  1817.     @pyqtSlot(int, int, int, int, int)

  1818.     def slot_handlePatchbayClientPositionChangedCallback(self, clientId, x1, y1, x2, y2):

  1819.         if (x1 != 0 and x2 != 0) or (y1 != 0 and y2 != 0):

  1820.             patchcanvas.splitGroup(clientId)

  1821.         else:

  1822.             patchcanvas.joinGroup(clientId)

  1823.         patchcanvas.setGroupPosFull(clientId, x1, y1, x2, y2)

  1824.         self.updateMiniCanvasLater()

  1825. 

  1826.     @pyqtSlot(int, int, int, int, str)

  1827.     def slot_handlePatchbayPortAddedCallback(self, clientId, portId, portFlags, portGroupId, portName):

  1828.         if portFlags & PATCHBAY_PORT_IS_INPUT:

  1829.             portMode = patchcanvas.PORT_MODE_INPUT

  1830.         else:

  1831.             portMode = patchcanvas.PORT_MODE_OUTPUT

  1832. 

  1833.         if portFlags & PATCHBAY_PORT_TYPE_AUDIO:

  1834.             portType    = patchcanvas.PORT_TYPE_AUDIO_JACK

  1835.             isAlternate = False

  1836.         elif portFlags & PATCHBAY_PORT_TYPE_CV:

  1837.             portType    = patchcanvas.PORT_TYPE_PARAMETER

  1838.             isAlternate = False

  1839.         elif portFlags & PATCHBAY_PORT_TYPE_MIDI:

  1840.             portType    = patchcanvas.PORT_TYPE_MIDI_JACK

  1841.             isAlternate = False

  1842.         else:

  1843.             portType    = patchcanvas.PORT_TYPE_NULL

  1844.             isAlternate = False

  1845. 

  1846.         patchcanvas.addPort(clientId, portId, portName, portMode, portType, isAlternate)

  1847.         self.updateMiniCanvasLater()

  1848. 

  1849.     @pyqtSlot(int, int)

  1850.     def slot_handlePatchbayPortRemovedCallback(self, groupId, portId):

  1851.         patchcanvas.removePort(groupId, portId)

  1852.         self.updateMiniCanvasLater()

  1853. 

  1854.     @pyqtSlot(int, int, int, int, str)

  1855.     def slot_handlePatchbayPortChangedCallback(self, groupId, portId, portFlags, portGroupId, newPortName):

  1856.         patchcanvas.renamePort(groupId, portId, newPortName)

  1857.         self.updateMiniCanvasLater()

  1858. 

  1859.     @pyqtSlot(int, int, int, str)

  1860.     def slot_handlePatchbayPortGroupAddedCallback(self, groupId, portId, portGroupId, newPortName):

  1861.         # TODO

  1862.         pass

  1863. 

  1864.     @pyqtSlot(int, int)

  1865.     def slot_handlePatchbayPortGroupRemovedCallback(self, groupId, portId):

  1866.         # TODO

  1867.         pass

  1868. 

  1869.     @pyqtSlot(int, int, int, str)

  1870.     def slot_handlePatchbayPortGroupChangedCallback(self, groupId, portId, portGroupId, newPortName):

  1871.         # TODO

  1872.         pass

  1873. 

  1874.     @pyqtSlot(int, int, int, int, int)

  1875.     def slot_handlePatchbayConnectionAddedCallback(self, connectionId, groupOutId, portOutId, groupInId, portInId):

  1876.         patchcanvas.connectPorts(connectionId, groupOutId, portOutId, groupInId, portInId)

  1877.         self.updateMiniCanvasLater()

  1878. 

  1879.     @pyqtSlot(int, int, int)

  1880.     def slot_handlePatchbayConnectionRemovedCallback(self, connectionId, portOutId, portInId):

  1881.         patchcanvas.disconnectPorts(connectionId)

  1882.         self.updateMiniCanvasLater()

  1883. 

  1884.     # --------------------------------------------------------------------------------------------------------

  1885.     # Settings

  1886. 

  1887.     def saveSettings(self):

  1888.         settings = QSafeSettings()

  1889. 

  1890.         settings.setValue("Geometry", self.saveGeometry())

  1891.         settings.setValue("ShowToolbar", self.ui.toolBar.isEnabled())

  1892.         settings.setValue("ShowSidePanel", self.ui.dockWidget.isEnabled())

  1893. 

  1894.         diskFolders = []

  1895. 

  1896.         for i in range(self.ui.cb_disk.count()):

  1897.             diskFolders.append(self.ui.cb_disk.itemData(i))

  1898. 

  1899.         settings.setValue("DiskFolders", diskFolders)

  1900.         settings.setValue("LastBPM", self.fLastTransportBPM)

  1901. 

  1902.         settings.setValue("ShowMeters", self.ui.act_settings_show_meters.isChecked())

  1903.         settings.setValue("ShowKeyboard", self.ui.act_settings_show_keyboard.isChecked())

  1904.         settings.setValue("HorizontalScrollBarValue", self.ui.graphicsView.horizontalScrollBar().value())

  1905.         settings.setValue("VerticalScrollBarValue", self.ui.graphicsView.verticalScrollBar().value())

  1906. 

  1907.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_MODE,  self.host.transportMode)

  1908.         settings.setValue(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, self.host.transportExtra)

  1909. 

  1910.         return settings

  1911. 

  1912.     def loadSettings(self, firstTime):

  1913.         settings = QSafeSettings()

  1914. 

  1915.         if firstTime:

  1916.             geometry = settings.value("Geometry", QByteArray(), QByteArray)

  1917.             if not geometry.isNull():

  1918.                 self.restoreGeometry(geometry)

  1919. 

  1920.             showToolbar = settings.value("ShowToolbar", True, bool)

  1921.             self.ui.act_settings_show_toolbar.setChecked(showToolbar)

  1922.             self.ui.toolBar.setEnabled(showToolbar)

  1923.             self.ui.toolBar.setVisible(showToolbar)

  1924. 

  1925.             #if settings.contains("SplitterState"):

  1926.                 #self.ui.splitter.restoreState(settings.value("SplitterState", b""))

  1927.             #else:

  1928.                 #self.ui.splitter.setSizes([210, 99999])

  1929. 

  1930.             showSidePanel = settings.value("ShowSidePanel", True, bool)

  1931.             self.ui.act_settings_show_side_panel.setChecked(showSidePanel)

  1932.             self.slot_showSidePanel(showSidePanel)

  1933. 

  1934.             diskFolders = settings.value("DiskFolders", [HOME], list)

  1935. 

  1936.             self.ui.cb_disk.setItemData(0, HOME)

  1937. 

  1938.             for i in range(len(diskFolders)):

  1939.                 if i == 0: continue

  1940.                 folder = diskFolders[i]

  1941.                 self.ui.cb_disk.addItem(os.path.basename(folder), folder)

  1942. 

  1943.             #if MACOS and not settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, True, bool):

  1944.             #    self.setUnifiedTitleAndToolBarOnMac(True)

  1945. 

  1946.             showMeters = settings.value("ShowMeters", True, bool)

  1947.             self.ui.act_settings_show_meters.setChecked(showMeters)

  1948.             self.ui.peak_in.setVisible(showMeters)

  1949.             self.ui.peak_out.setVisible(showMeters)

  1950. 

  1951.             showKeyboard = settings.value("ShowKeyboard", True, bool)

  1952.             self.ui.act_settings_show_keyboard.setChecked(showKeyboard)

  1953.             self.ui.scrollArea.setVisible(showKeyboard)

  1954. 

  1955.             settingsDBf = QSafeSettings("falkTX", "CarlaDatabase2")

  1956.             self.fFavoritePlugins = settingsDBf.value("PluginDatabase/Favorites", [], list)

  1957. 

  1958.             QTimer.singleShot(100, self.slot_restoreCanvasScrollbarValues)

  1959. 

  1960.         # TODO - complete this

  1961.         oldSettings = self.fSavedSettings

  1962. 

  1963.         self.fSavedSettings = {

  1964.             CARLA_KEY_MAIN_PROJECT_FOLDER:      settings.value(CARLA_KEY_MAIN_PROJECT_FOLDER,      CARLA_DEFAULT_MAIN_PROJECT_FOLDER,      str),

  1965.             CARLA_KEY_MAIN_CONFIRM_EXIT:        settings.value(CARLA_KEY_MAIN_CONFIRM_EXIT,        CARLA_DEFAULT_MAIN_CONFIRM_EXIT,        bool),

  1966.             CARLA_KEY_MAIN_CLASSIC_SKIN:        settings.value(CARLA_KEY_MAIN_CLASSIC_SKIN,        CARLA_DEFAULT_MAIN_CLASSIC_SKIN,        bool),

  1967.             CARLA_KEY_MAIN_REFRESH_INTERVAL:    settings.value(CARLA_KEY_MAIN_REFRESH_INTERVAL,    CARLA_DEFAULT_MAIN_REFRESH_INTERVAL,    int),

  1968.             CARLA_KEY_MAIN_SYSTEM_ICONS:        settings.value(CARLA_KEY_MAIN_SYSTEM_ICONS,        CARLA_DEFAULT_MAIN_SYSTEM_ICONS,        bool),

  1969.             CARLA_KEY_MAIN_EXPERIMENTAL:        settings.value(CARLA_KEY_MAIN_EXPERIMENTAL,        CARLA_DEFAULT_MAIN_EXPERIMENTAL,        bool),

  1970.             CARLA_KEY_CANVAS_THEME:             settings.value(CARLA_KEY_CANVAS_THEME,             CARLA_DEFAULT_CANVAS_THEME,             str),

  1971.             CARLA_KEY_CANVAS_SIZE:              settings.value(CARLA_KEY_CANVAS_SIZE,              CARLA_DEFAULT_CANVAS_SIZE,              str),

  1972.             CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS:  settings.value(CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS,  CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS,  bool),

  1973.             CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS: settings.value(CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS, CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS, bool),

  1974.             CARLA_KEY_CANVAS_USE_BEZIER_LINES:  settings.value(CARLA_KEY_CANVAS_USE_BEZIER_LINES,  CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES,  bool),

  1975.             CARLA_KEY_CANVAS_EYE_CANDY:         settings.value(CARLA_KEY_CANVAS_EYE_CANDY,         CARLA_DEFAULT_CANVAS_EYE_CANDY,         bool),

  1976.             CARLA_KEY_CANVAS_FANCY_EYE_CANDY:   settings.value(CARLA_KEY_CANVAS_FANCY_EYE_CANDY,   CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY,   bool),

  1977.             CARLA_KEY_CANVAS_USE_OPENGL:        settings.value(CARLA_KEY_CANVAS_USE_OPENGL,        CARLA_DEFAULT_CANVAS_USE_OPENGL,        bool),

  1978.             CARLA_KEY_CANVAS_ANTIALIASING:      settings.value(CARLA_KEY_CANVAS_ANTIALIASING,      CARLA_DEFAULT_CANVAS_ANTIALIASING,      int),

  1979.             CARLA_KEY_CANVAS_HQ_ANTIALIASING:   settings.value(CARLA_KEY_CANVAS_HQ_ANTIALIASING,   CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING,   bool),

  1980.             CARLA_KEY_CANVAS_FULL_REPAINTS:     settings.value(CARLA_KEY_CANVAS_FULL_REPAINTS,     CARLA_DEFAULT_CANVAS_FULL_REPAINTS,     bool),

  1981.             CARLA_KEY_CUSTOM_PAINTING:         (settings.value(CARLA_KEY_MAIN_USE_PRO_THEME,    True,   bool) and

  1982.                                                 settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, "Black", str).lower() == "black"),

  1983.         }

  1984. 

  1985.         if not self.host.isControl:

  1986.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = settings.value(CARLA_KEY_CANVAS_INLINE_DISPLAYS, CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS, bool)

  1987.         else:

  1988.             self.fSavedSettings[CARLA_KEY_CANVAS_INLINE_DISPLAYS] = False

  1989. 

  1990.         settings2 = QSafeSettings("falkTX", "Carla2")

  1991. 

  1992.         if self.host.experimental:

  1993.             visible = settings2.value(CARLA_KEY_EXPERIMENTAL_JACK_APPS, CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS, bool)

  1994.             self.ui.act_plugin_add_jack.setVisible(visible)

  1995.         else:

  1996.             self.ui.act_plugin_add_jack.setVisible(False)

  1997. 

  1998.         self.fMiniCanvasUpdateTimeout = 1000 if self.fSavedSettings[CARLA_KEY_CANVAS_FANCY_EYE_CANDY] else 0

  1999. 

  2000.         setEngineSettings(self.host)

  2001.         self.restartTimersIfNeeded()

  2002. 

  2003.         if oldSettings.get(CARLA_KEY_MAIN_CLASSIC_SKIN, None) not in (self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN], None):

  2004.             newSkin = "classic" if self.fSavedSettings[CARLA_KEY_MAIN_CLASSIC_SKIN] else None

  2005. 

  2006.             for pitem in self.fPluginList:

  2007.                 if pitem is None:

  2008.                     continue

  2009.                 pitem.recreateWidget(newSkin = newSkin)

  2010. 

  2011.         return settings

  2012. 

  2013.     # --------------------------------------------------------------------------------------------------------

  2014.     # Settings (helpers)

  2015. 

  2016.     def enableTransport(self, enabled):

  2017.         self.ui.group_transport_controls.setEnabled(enabled)

  2018.         self.ui.group_transport_settings.setEnabled(enabled)

  2019. 

  2020.     @pyqtSlot()

  2021.     def slot_restoreCanvasScrollbarValues(self):

  2022.         settings = QSafeSettings()

  2023.         horiz = settings.value("HorizontalScrollBarValue", int(self.ui.graphicsView.horizontalScrollBar().maximum()/2), int)

  2024.         vertc = settings.value("VerticalScrollBarValue", int(self.ui.graphicsView.verticalScrollBar().maximum()/2), int)

  2025.         self.ui.graphicsView.horizontalScrollBar().setValue(horiz)

  2026.         self.ui.graphicsView.verticalScrollBar().setValue(vertc)

  2027. 

  2028.     # --------------------------------------------------------------------------------------------------------

  2029.     # Settings (menu actions)

  2030. 

  2031.     @pyqtSlot(bool)

  2032.     def slot_showSidePanel(self, yesNo):

  2033.         self.ui.dockWidget.setEnabled(yesNo)

  2034.         self.ui.dockWidget.setVisible(yesNo)

  2035. 

  2036.     @pyqtSlot(bool)

  2037.     def slot_showToolbar(self, yesNo):

  2038.         self.ui.toolBar.setEnabled(yesNo)

  2039.         self.ui.toolBar.setVisible(yesNo)

  2040. 

  2041.     @pyqtSlot(bool)

  2042.     def slot_showCanvasMeters(self, yesNo):

  2043.         self.ui.peak_in.setVisible(yesNo)

  2044.         self.ui.peak_out.setVisible(yesNo)

  2045.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2046. 

  2047.     @pyqtSlot(bool)

  2048.     def slot_showCanvasKeyboard(self, yesNo):

  2049.         self.ui.scrollArea.setVisible(yesNo)

  2050.         QTimer.singleShot(0, self.slot_miniCanvasCheckAll)

  2051. 

  2052.     @pyqtSlot()

  2053.     def slot_configureCarla(self):

  2054.         dialog = CarlaSettingsW(self.fParentOrSelf, self.host, True, hasGL)

  2055.         if not dialog.exec_():

  2056.             return

  2057. 

  2058.         self.loadSettings(False)

  2059. 

  2060.         if self.fWithCanvas:

  2061.             patchcanvas.clear()

  2062.             self.setupCanvas()

  2063.             self.slot_miniCanvasCheckAll()

  2064. 

  2065.         if self.host.processMode == ENGINE_PROCESS_MODE_CONTINUOUS_RACK and self.host.isPlugin:

  2066.             pass

  2067.         elif self.host.is_engine_running():

  2068.             self.host.patchbay_refresh(self.fExternalPatchbay)

  2069. 

  2070.     # --------------------------------------------------------------------------------------------------------

  2071.     # About (menu actions)

  2072. 

  2073.     @pyqtSlot()

  2074.     def slot_aboutCarla(self):

  2075.         CarlaAboutW(self.fParentOrSelf, self.host).exec_()

  2076. 

  2077.     @pyqtSlot()

  2078.     def slot_aboutJuce(self):

  2079.         JuceAboutW(self.fParentOrSelf).exec_()

  2080. 

  2081.     @pyqtSlot()

  2082.     def slot_aboutQt(self):

  2083.         QApplication.instance().aboutQt()

  2084. 

  2085.     # --------------------------------------------------------------------------------------------------------

  2086.     # Disk (menu actions)

  2087. 

  2088.     @pyqtSlot(int)

  2089.     def slot_diskFolderChanged(self, index):

  2090.         if index < 0:

  2091.             return

  2092.         elif index == 0:

  2093.             filename = HOME

  2094.             self.ui.b_disk_remove.setEnabled(False)

  2095.         else:

  2096.             filename = self.ui.cb_disk.itemData(index)

  2097.             self.ui.b_disk_remove.setEnabled(True)

  2098. 

  2099.         self.fDirModel.setRootPath(filename)

  2100.         self.ui.fileTreeView.setRootIndex(self.fDirModel.index(filename))

  2101. 

  2102.     @pyqtSlot()

  2103.     def slot_diskFolderAdd(self):

  2104.         newPath = QFileDialog.getExistingDirectory(self, self.tr("New Folder"), "", QFileDialog.ShowDirsOnly)

  2105. 

  2106.         if newPath:

  2107.             if newPath[-1] == os.sep:

  2108.                 newPath = newPath[:-1]

  2109.             self.ui.cb_disk.addItem(os.path.basename(newPath), newPath)

  2110.             self.ui.cb_disk.setCurrentIndex(self.ui.cb_disk.count()-1)

  2111.             self.ui.b_disk_remove.setEnabled(True)

  2112. 

  2113.     @pyqtSlot()

  2114.     def slot_diskFolderRemove(self):

  2115.         index = self.ui.cb_disk.currentIndex()

  2116. 

  2117.         if index <= 0:

  2118.             return

  2119. 

  2120.         self.ui.cb_disk.removeItem(index)

  2121. 

  2122.         if self.ui.cb_disk.currentIndex() == 0:

  2123.             self.ui.b_disk_remove.setEnabled(False)

  2124. 

  2125.     @pyqtSlot(QModelIndex)

  2126.     def slot_fileTreeDoubleClicked(self, modelIndex):

  2127.         filename = self.fDirModel.filePath(modelIndex)

  2128. 

  2129.         if not self.ui.listWidget.isDragUrlValid(filename):

  2130.             return

  2131. 

  2132.         if not self.host.load_file(filename):

  2133.             CustomMessageBox(self, QMessageBox.Critical, self.tr("Error"),

  2134.                              self.tr("Failed to load file"),

  2135.                              self.host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2136.             return

  2137. 

  2138.         if filename.endswith(".carxp"):

  2139.             self.loadExternalCanvasGroupPositionsIfNeeded(filename)

  2140. 

  2141.     # --------------------------------------------------------------------------------------------------------

  2142.     # Transport

  2143. 

  2144.     def refreshTransport(self, forced = False):

  2145.         if not self.ui.l_transport_time.isVisible():

  2146.             return

  2147.         if self.fSampleRate == 0.0 or not self.host.is_engine_running():

  2148.             return

  2149. 

  2150.         timeInfo = self.host.get_transport_info()

  2151.         playing  = timeInfo['playing']

  2152.         frame    = timeInfo['frame']

  2153.         bpm      = timeInfo['bpm']

  2154. 

  2155.         if playing != self.fLastTransportState or forced:

  2156.             if playing:

  2157.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2158.                     icon = getIcon('media-playback-pause', 16, 'svgz')

  2159.                 else:

  2160.                     icon = QIcon(":/16x16/media-playback-pause.svgz")

  2161.                 self.ui.b_transport_play.setChecked(True)

  2162.                 self.ui.b_transport_play.setIcon(icon)

  2163.                 #self.ui.b_transport_play.setText(self.tr("&Pause"))

  2164.             else:

  2165.                 if self.fSavedSettings[CARLA_KEY_MAIN_SYSTEM_ICONS]:

  2166.                     icon = getIcon('media-playback-start', 16, 'svgz')

  2167.                 else:

  2168.                     icon = QIcon(":/16x16/media-playback-start.svgz")

  2169.                 self.ui.b_transport_play.setChecked(False)

  2170.                 self.ui.b_transport_play.setIcon(icon)

  2171.                 #self.ui.b_play.setText(self.tr("&Play"))

  2172. 

  2173.             self.fLastTransportState = playing

  2174. 

  2175.         if frame != self.fLastTransportFrame or forced:

  2176.             self.fLastTransportFrame = frame

  2177. 

  2178.             time = frame / self.fSampleRate

  2179.             secs =  time % 60

  2180.             mins = (time / 60) % 60

  2181.             hrs  = (time / 3600) % 60

  2182.             self.ui.l_transport_time.setText("%02i:%02i:%02i" % (hrs, mins, secs))

  2183. 

  2184.             frame1 =  frame % 1000

  2185.             frame2 = (frame / 1000) % 1000

  2186.             frame3 = (frame / 1000000) % 1000

  2187.             self.ui.l_transport_frame.setText("%03i'%03i'%03i" % (frame3, frame2, frame1))

  2188. 

  2189.             bar  = timeInfo['bar']

  2190.             beat = timeInfo['beat']

  2191.             tick = timeInfo['tick']

  2192.             self.ui.l_transport_bbt.setText("%03i|%02i|%04i" % (bar, beat, tick))

  2193. 

  2194.         if bpm != self.fLastTransportBPM or forced:

  2195.             self.fLastTransportBPM = bpm

  2196. 

  2197.             if bpm > 0.0:

  2198.                 self.ui.dsb_transport_bpm.blockSignals(True)

  2199.                 self.ui.dsb_transport_bpm.setValue(bpm)

  2200.                 self.ui.dsb_transport_bpm.blockSignals(False)

  2201.                 self.ui.dsb_transport_bpm.setStyleSheet("")

  2202.             else:

  2203.                 self.ui.dsb_transport_bpm.setStyleSheet("QDoubleSpinBox { color: palette(mid); }")

  2204. 

  2205.     # --------------------------------------------------------------------------------------------------------

  2206.     # Transport (menu actions)

  2207. 

  2208.     @pyqtSlot(bool)

  2209.     def slot_transportPlayPause(self, toggled):

  2210.         if self.host.isPlugin or not self.host.is_engine_running():

  2211.             return

  2212. 

  2213.         if toggled:

  2214.             self.host.transport_play()

  2215.         else:

  2216.             self.host.transport_pause()

  2217. 

  2218.         self.refreshTransport()

  2219. 

  2220.     @pyqtSlot()

  2221.     def slot_transportStop(self):

  2222.         if self.host.isPlugin or not self.host.is_engine_running():

  2223.             return

  2224. 

  2225.         self.host.transport_pause()

  2226.         self.host.transport_relocate(0)

  2227. 

  2228.         self.refreshTransport()

  2229. 

  2230.     @pyqtSlot()

  2231.     def slot_transportBackwards(self):

  2232.         if self.host.isPlugin or not self.host.is_engine_running():

  2233.             return

  2234. 

  2235.         newFrame = self.host.get_current_transport_frame() - 100000

  2236. 

  2237.         if newFrame < 0:

  2238.             newFrame = 0

  2239. 

  2240.         self.host.transport_relocate(newFrame)

  2241. 

  2242.     @pyqtSlot(float)

  2243.     def slot_transportBpmChanged(self, newValue):

  2244.         self.host.transport_bpm(newValue)

  2245. 

  2246.     @pyqtSlot()

  2247.     def slot_transportForwards(self):

  2248.         if self.fSampleRate == 0.0 or self.host.isPlugin or not self.host.is_engine_running():

  2249.             return

  2250. 

  2251.         newFrame = self.host.get_current_transport_frame() + int(self.fSampleRate*2.5)

  2252.         self.host.transport_relocate(newFrame)

  2253. 

  2254.     @pyqtSlot(bool)

  2255.     def slot_transportJackEnabled(self, clicked):

  2256.         if not self.host.is_engine_running():

  2257.             return

  2258.         self.host.transportMode = ENGINE_TRANSPORT_MODE_JACK if clicked else ENGINE_TRANSPORT_MODE_INTERNAL

  2259.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2260.                                     self.host.transportMode,

  2261.                                     self.host.transportExtra)

  2262. 

  2263.     @pyqtSlot(bool)

  2264.     def slot_transportLinkEnabled(self, clicked):

  2265.         if not self.host.is_engine_running():

  2266.             return

  2267.         extra = ":link:" if clicked else ""

  2268.         self.host.transportExtra = extra

  2269.         self.host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,

  2270.                                     self.host.transportMode,

  2271.                                     self.host.transportExtra)

  2272. 

  2273.     # --------------------------------------------------------------------------------------------------------

  2274.     # Other

  2275. 

  2276.     @pyqtSlot(bool)

  2277.     def slot_xrunClear(self):

  2278.         self.host.clear_engine_xruns()

  2279. 

  2280.     # --------------------------------------------------------------------------------------------------------

  2281.     # Canvas scrollbars

  2282. 

  2283.     @pyqtSlot(int)

  2284.     def slot_horizontalScrollBarChanged(self, value):

  2285.         maximum = self.ui.graphicsView.horizontalScrollBar().maximum()

  2286.         if maximum == 0:

  2287.             xp = 0

  2288.         else:

  2289.             xp = float(value) / maximum

  2290.         self.ui.miniCanvasPreview.setViewPosX(xp)

  2291.         self.updateCanvasInitialPos()

  2292. 

  2293.     @pyqtSlot(int)

  2294.     def slot_verticalScrollBarChanged(self, value):

  2295.         maximum = self.ui.graphicsView.verticalScrollBar().maximum()

  2296.         if maximum == 0:

  2297.             yp = 0

  2298.         else:

  2299.             yp = float(value) / maximum

  2300.         self.ui.miniCanvasPreview.setViewPosY(yp)

  2301.         self.updateCanvasInitialPos()

  2302. 

  2303.     # --------------------------------------------------------------------------------------------------------

  2304.     # Canvas keyboard

  2305. 

  2306.     @pyqtSlot(int)

  2307.     def slot_noteOn(self, note):

  2308.         if self.fPluginCount == 0:

  2309.             return

  2310. 

  2311.         for pluginId in self.fSelectedPlugins:

  2312.             self.host.send_midi_note(pluginId, 0, note, 100)

  2313. 

  2314.             pedit = self.getPluginEditDialog(pluginId)

  2315.             pedit.noteOn(0, note, 100)

  2316. 

  2317.     @pyqtSlot(int)

  2318.     def slot_noteOff(self, note):

  2319.         if self.fPluginCount == 0:

  2320.             return

  2321. 

  2322.         for pluginId in self.fSelectedPlugins:

  2323.             self.host.send_midi_note(pluginId, 0, note, 0)

  2324. 

  2325.             pedit = self.getPluginEditDialog(pluginId)

  2326.             pedit.noteOff(0, note)

  2327. 

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

  2329.     # Canvas keyboard (host callbacks)

  2330. 

  2331.     @pyqtSlot(int, int, int, int)

  2332.     def slot_handleNoteOnCallback(self, pluginId, channel, note, velocity):

  2333.         if pluginId in self.fSelectedPlugins:

  2334.             self.ui.keyboard.sendNoteOn(note, False)

  2335. 

  2336.     @pyqtSlot(int, int, int)

  2337.     def slot_handleNoteOffCallback(self, pluginId, channel, note):

  2338.         if pluginId in self.fSelectedPlugins:

  2339.             self.ui.keyboard.sendNoteOff(note, False)

  2340. 

  2341.     # --------------------------------------------------------------------------------------------------------

  2342. 

  2343.     @pyqtSlot(int)

  2344.     def slot_handleUpdateCallback(self, pluginId):

  2345.         pitem = self.getPluginItem(pluginId)

  2346. 

  2347.         if pitem is None:

  2348.             return

  2349. 

  2350.         wasCompacted = pitem.isCompacted()

  2351.         isCompacted  = wasCompacted

  2352. 

  2353.         check = self.host.get_custom_data_value(pluginId, CUSTOM_DATA_TYPE_PROPERTY, "CarlaSkinIsCompacted")

  2354.         if not check:

  2355.             return

  2356.         isCompacted = bool(check == "true")

  2357. 

  2358.         if wasCompacted == isCompacted:

  2359.             return

  2360. 

  2361.         pitem.recreateWidget(True)

  2362. 

  2363.     # --------------------------------------------------------------------------------------------------------

  2364.     # MiniCanvas stuff

  2365. 

  2366.     @pyqtSlot()

  2367.     def slot_miniCanvasCheckAll(self):

  2368.         self.slot_miniCanvasCheckSize()

  2369.         self.slot_horizontalScrollBarChanged(self.ui.graphicsView.horizontalScrollBar().value())

  2370.         self.slot_verticalScrollBarChanged(self.ui.graphicsView.verticalScrollBar().value())

  2371. 

  2372.     @pyqtSlot()

  2373.     def slot_miniCanvasCheckSize(self):

  2374.         if self.fCanvasWidth == 0 or self.fCanvasHeight == 0:

  2375.             return

  2376. 

  2377.         currentIndex = self.ui.tabWidget.currentIndex()

  2378. 

  2379.         if currentIndex == 1:

  2380.             width  = self.ui.graphicsView.width()

  2381.             height = self.ui.graphicsView.height()

  2382.         else:

  2383.             self.ui.tabWidget.blockSignals(True)

  2384.             self.ui.tabWidget.setCurrentIndex(1)

  2385.             width  = self.ui.graphicsView.width()

  2386.             height = self.ui.graphicsView.height()

  2387.             self.ui.tabWidget.setCurrentIndex(currentIndex)

  2388.             self.ui.tabWidget.blockSignals(False)

  2389. 

  2390.         self.scene.updateLimits()

  2391. 

  2392.         self.ui.miniCanvasPreview.setViewSize(float(width)/self.fCanvasWidth, float(height)/self.fCanvasHeight)

  2393. 

  2394.     @pyqtSlot(float, float)

  2395.     def slot_miniCanvasMoved(self, xp, yp):

  2396.         hsb = self.ui.graphicsView.horizontalScrollBar()

  2397.         vsb = self.ui.graphicsView.verticalScrollBar()

  2398.         hsb.setValue(xp * hsb.maximum())

  2399.         vsb.setValue(yp * vsb.maximum())

  2400.         self.updateCanvasInitialPos()

  2401. 

  2402.     # --------------------------------------------------------------------------------------------------------

  2403.     # Logs autoscroll, save and clear

  2404. 

  2405.     @pyqtSlot(int)

  2406.     def slot_toggleLogAutoscroll(self, checkState):

  2407.         self.autoscrollOnNewLog = checkState == Qt.Checked

  2408.         if self.autoscrollOnNewLog:

  2409.             self.ui.text_logs.verticalScrollBar().setValue(self.ui.text_logs.verticalScrollBar().maximum())

  2410. 

  2411.     @pyqtSlot(int)

  2412.     def slot_logSliderMoved(self, slider_pos):

  2413.         if self.ui.text_logs.verticalScrollBar().hasTracking() or self.autoscrollOnNewLog:

  2414.             self.lastLogSliderPos = slider_pos

  2415.         else:

  2416.             self.ui.text_logs.verticalScrollBar().setValue(self.lastLogSliderPos)

  2417. 

  2418.     @pyqtSlot()

  2419.     def slot_logButtonsState(self, enabled=True):

  2420.         self.ui.logs_clear.setEnabled(enabled)

  2421.         self.ui.logs_save.setEnabled(enabled)

  2422. 

  2423.     @pyqtSlot()

  2424.     def slot_logSave(self):

  2425.         filename = os.path.join(self.fSavedSettings[CARLA_KEY_MAIN_PROJECT_FOLDER], 'carla_log.txt')

  2426.         filename, _ = QFileDialog.getSaveFileName(self, self.tr("Save Logs"), filename)

  2427. 

  2428.         if not filename:

  2429.             return

  2430. 

  2431.         try:

  2432.             with open(filename, "w") as logfile:

  2433.                 logfile.write(self.ui.text_logs.toPlainText())

  2434.                 logfile.close()

  2435.         except:

  2436.             return

  2437. 

  2438.     @pyqtSlot()

  2439.     def slot_logClear(self):

  2440.         self.ui.text_logs.clear()

  2441.         self.ui.text_logs.appendPlainText("======= Logs cleared ========")

  2442.         self.slot_logButtonsState(False)

  2443. 

  2444.     # --------------------------------------------------------------------------------------------------------

  2445.     # Timers

  2446. 

  2447.     def startTimers(self):

  2448.         if self.fIdleTimerFast == 0:

  2449.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2450. 

  2451.         if self.fIdleTimerSlow == 0:

  2452.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2453. 

  2454.     def restartTimersIfNeeded(self):

  2455.         if self.fIdleTimerFast != 0:

  2456.             self.killTimer(self.fIdleTimerFast)

  2457.             self.fIdleTimerFast = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL])

  2458. 

  2459.         if self.fIdleTimerSlow != 0:

  2460.             self.killTimer(self.fIdleTimerSlow)

  2461.             self.fIdleTimerSlow = self.startTimer(self.fSavedSettings[CARLA_KEY_MAIN_REFRESH_INTERVAL]*4)

  2462. 

  2463.     def killTimers(self):

  2464.         if self.fIdleTimerFast != 0:

  2465.             self.killTimer(self.fIdleTimerFast)

  2466.             self.fIdleTimerFast = 0

  2467. 

  2468.         if self.fIdleTimerSlow != 0:

  2469.             self.killTimer(self.fIdleTimerSlow)

  2470.             self.fIdleTimerSlow = 0

  2471. 

  2472.     # --------------------------------------------------------------------------------------------------------

  2473.     # Misc

  2474. 

  2475.     @pyqtSlot(int)

  2476.     def slot_tabChanged(self, index):

  2477.         if index != 1:

  2478.             return

  2479. 

  2480.         self.ui.graphicsView.setFocus()

  2481. 

  2482.     @pyqtSlot(int)

  2483.     def slot_handleReloadAllCallback(self, pluginId):

  2484.         if pluginId >= self.fPluginCount:

  2485.             return

  2486. 

  2487.         pitem = self.fPluginList[pluginId]

  2488.         if pitem is None:

  2489.             return

  2490. 

  2491.         pitem.recreateWidget()

  2492. 

  2493.     # --------------------------------------------------------------------------------------------------------

  2494. 

  2495.     @pyqtSlot(int, int, str)

  2496.     def slot_handleNSMCallback(self, opcode, valueInt, valueStr):

  2497.         if opcode == NSM_CALLBACK_INIT:

  2498.             return

  2499. 

  2500.         # Error

  2501.         elif opcode == NSM_CALLBACK_ERROR:

  2502.             pass

  2503. 

  2504.         # Reply

  2505.         elif opcode == NSM_CALLBACK_ANNOUNCE:

  2506.             self.fFirstEngineInit    = False

  2507.             self.fSessionManagerName = valueStr

  2508.             self.setProperWindowTitle()

  2509. 

  2510.             # If NSM server does not support optional-gui, revert our initial assumptions that it does

  2511.             if (valueInt & (1 << 1)) == 0x0:

  2512.                 self.fWindowCloseHideGui = False

  2513.                 self.ui.act_file_quit.setText(self.tr("&Quit"))

  2514.                 QApplication.instance().setQuitOnLastWindowClosed(True)

  2515.                 self.show()

  2516. 

  2517.         # Open

  2518.         elif opcode == NSM_CALLBACK_OPEN:

  2519.             self.fProjectFilename = QFileInfo(valueStr+".carxp").absoluteFilePath()

  2520.             self.setProperWindowTitle()

  2521. 

  2522.             self.fCustomStopAction = self.CUSTOM_ACTION_PROJECT_LOAD

  2523.             self.slot_engineStop(True)

  2524.             return

  2525. 

  2526.         # Save

  2527.         elif opcode == NSM_CALLBACK_SAVE:

  2528.             self.saveProjectNow()

  2529. 

  2530.         # Session is Loaded

  2531.         elif opcode == NSM_CALLBACK_SESSION_IS_LOADED:

  2532.             pass

  2533. 

  2534.         # Show Optional Gui

  2535.         elif opcode == NSM_CALLBACK_SHOW_OPTIONAL_GUI:

  2536.             self.show()

  2537. 

  2538.         # Hide Optional Gui

  2539.         elif opcode == NSM_CALLBACK_HIDE_OPTIONAL_GUI:

  2540.             self.hideForNSM()

  2541. 

  2542.         # Set client name

  2543.         elif opcode == NSM_CALLBACK_SET_CLIENT_NAME_ID:

  2544.             self.fClientName = valueStr

  2545.             return

  2546. 

  2547.         self.host.nsm_ready(opcode)

  2548. 

  2549.     # --------------------------------------------------------------------------------------------------------

  2550. 

  2551.     def fixLogText(self, text):

  2552.         return text.replace("\x1b[30;1m", "").replace("\x1b[31m", "").replace("\x1b[0m", "")

  2553. 

  2554.     @pyqtSlot(int, int, int, int, float, str)

  2555.     def slot_handleDebugCallback(self, pluginId, value1, value2, value3, valuef, valueStr):

  2556.         self.ui.text_logs.appendPlainText(self.fixLogText(valueStr))

  2557. 

  2558.     @pyqtSlot(str)

  2559.     def slot_handleInfoCallback(self, info):

  2560.         QMessageBox.information(self, "Information", info)

  2561. 

  2562.     @pyqtSlot(str)

  2563.     def slot_handleErrorCallback(self, error):

  2564.         QMessageBox.critical(self, "Error", error)

  2565. 

  2566.     @pyqtSlot()

  2567.     def slot_handleQuitCallback(self):

  2568.         self.fIsProjectLoading = False

  2569.         self.killTimers()

  2570.         self.removeAllPlugins()

  2571.         self.projectLoadingFinished(False)

  2572. 

  2573.     @pyqtSlot(int)

  2574.     def slot_handleInlineDisplayRedrawCallback(self, pluginId):

  2575.         # FIXME

  2576.         if self.fIdleTimerSlow != 0 and self.fIdleTimerFast != 0 and pluginId < self.fPluginCount and not self.fIsProjectLoading:

  2577.             patchcanvas.redrawPluginGroup(pluginId)

  2578. 

  2579.     # --------------------------------------------------------------------------------------------------------

  2580. 

  2581.     @pyqtSlot()

  2582.     def slot_handleSIGUSR1(self):

  2583.         print("Got SIGUSR1 -> Saving project now")

  2584.         self.slot_fileSave()

  2585. 

  2586.     @pyqtSlot()

  2587.     def slot_handleSIGTERM(self):

  2588.         print("Got SIGTERM -> Closing now")

  2589.         self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2590.         self.close()

  2591. 

  2592.     # --------------------------------------------------------------------------------------------------------

  2593.     # Internal stuff

  2594. 

  2595.     def getExtraPtr(self, plugin):

  2596.         ptype = plugin['type']

  2597. 

  2598.         if ptype == PLUGIN_LADSPA:

  2599.             uniqueId = plugin['uniqueId']

  2600. 

  2601.             self.maybeLoadRDFs()

  2602. 

  2603.             for rdfItem in self.fLadspaRdfList:

  2604.                 if rdfItem.UniqueID == uniqueId:

  2605.                     return pointer(rdfItem)

  2606. 

  2607.         elif ptype == PLUGIN_SF2:

  2608.             if plugin['name'].lower().endswith(" (16 outputs)"):

  2609.                 return self._true

  2610. 

  2611.         return None

  2612. 

  2613.     def maybeLoadRDFs(self):

  2614.         if not self.fLadspaRdfNeedsUpdate:

  2615.             return

  2616. 

  2617.         self.fLadspaRdfNeedsUpdate = False

  2618.         self.fLadspaRdfList = []

  2619. 

  2620.         if not haveLRDF:

  2621.             return

  2622. 

  2623.         settingsDir  = os.path.join(HOME, ".config", "falkTX")

  2624.         frLadspaFile = os.path.join(settingsDir, "ladspa_rdf.db")

  2625. 

  2626.         if os.path.exists(frLadspaFile):

  2627.             frLadspa = open(frLadspaFile, 'r')

  2628. 

  2629.             try:

  2630.                 self.fLadspaRdfList = ladspa_rdf.get_c_ladspa_rdfs(json.load(frLadspa))

  2631.             except:

  2632.                 pass

  2633. 

  2634.             frLadspa.close()

  2635. 

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

  2637. 

  2638.     def getPluginCount(self):

  2639.         return self.fPluginCount

  2640. 

  2641.     def getPluginItem(self, pluginId):

  2642.         if pluginId >= self.fPluginCount:

  2643.             return None

  2644. 

  2645.         pitem = self.fPluginList[pluginId]

  2646.         if pitem is None:

  2647.             return None

  2648.         #if False:

  2649.             #return CarlaRackItem(self, 0, False)

  2650. 

  2651.         return pitem

  2652. 

  2653.     def getPluginEditDialog(self, pluginId):

  2654.         if pluginId >= self.fPluginCount:

  2655.             return None

  2656. 

  2657.         pitem = self.fPluginList[pluginId]

  2658.         if pitem is None:

  2659.             return None

  2660.         if False:

  2661.             return PluginEdit(self, self.host, 0)

  2662. 

  2663.         return pitem.getEditDialog()

  2664. 

  2665.     def getPluginSlotWidget(self, pluginId):

  2666.         if pluginId >= self.fPluginCount:

  2667.             return None

  2668. 

  2669.         pitem = self.fPluginList[pluginId]

  2670.         if pitem is None:

  2671.             return None

  2672.         #if False:

  2673.             #return AbstractPluginSlot()

  2674. 

  2675.         return pitem.getWidget()

  2676. 

  2677.     # --------------------------------------------------------------------------------------------------------

  2678. 

  2679.     def waitForPendingEvents(self):

  2680.         pass

  2681. 

  2682.     # --------------------------------------------------------------------------------------------------------

  2683.     # show/hide event

  2684. 

  2685.     def showEvent(self, event):

  2686.         self.getAndRefreshRuntimeInfo()

  2687.         self.refreshTransport(True)

  2688.         QMainWindow.showEvent(self, event)

  2689. 

  2690.         if QT_VERSION >= 0x50600:

  2691.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_UI_SCALE, int(self.devicePixelRatioF() * 1000), "")

  2692.             print("Frontend pixel ratio is", self.devicePixelRatioF())

  2693. 

  2694.         # set our gui as parent for all plugins UIs

  2695.         if self.host.manageUIs and not self.host.isControl:

  2696.             if MACOS:

  2697.                 nsViewPtr = int(self.winId())

  2698.                 winIdStr  = "%x" % gCarla.utils.cocoa_get_window(nsViewPtr)

  2699.             else:

  2700.                 winIdStr = "%x" % int(self.winId())

  2701.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, winIdStr)

  2702. 

  2703.     def hideEvent(self, event):

  2704.         # disable parent

  2705.         if not self.host.isControl:

  2706.             self.host.set_engine_option(ENGINE_OPTION_FRONTEND_WIN_ID, 0, "0")

  2707. 

  2708.         QMainWindow.hideEvent(self, event)

  2709. 

  2710.     # --------------------------------------------------------------------------------------------------------

  2711.     # resize event

  2712. 

  2713.     def resizeEvent(self, event):

  2714.         QMainWindow.resizeEvent(self, event)

  2715. 

  2716.         if self.fWithCanvas:

  2717.             self.slot_miniCanvasCheckSize()

  2718. 

  2719.     # --------------------------------------------------------------------------------------------------------

  2720.     # timer event

  2721. 

  2722.     def refreshRuntimeInfo(self, load, xruns):

  2723.         txt1 = str(xruns) if (xruns >= 0) else "--"

  2724.         txt2 = "" if (xruns == 1) else "s"

  2725.         self.ui.b_xruns.setText("%s Xrun%s" % (txt1, txt2))

  2726.         self.ui.pb_dsp_load.setValue(int(load))

  2727. 

  2728.     def getAndRefreshRuntimeInfo(self):

  2729.         if not self.ui.pb_dsp_load.isVisible():

  2730.             return

  2731.         if not self.host.is_engine_running():

  2732.             return

  2733.         info = self.host.get_runtime_engine_info()

  2734.         self.refreshRuntimeInfo(info['load'], info['xruns'])

  2735. 

  2736.     def idleFast(self):

  2737.         self.host.engine_idle()

  2738.         self.refreshTransport()

  2739. 

  2740.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2741.             return

  2742. 

  2743.         for pitem in self.fPluginList:

  2744.             if pitem is None:

  2745.                 break

  2746. 

  2747.             pitem.getWidget().idleFast()

  2748. 

  2749.         for pluginId in self.fSelectedPlugins:

  2750.             self.fPeaksCleared = False

  2751.             if self.ui.peak_in.isVisible():

  2752.                 self.ui.peak_in.displayMeter(1, self.host.get_input_peak_value(pluginId, True))

  2753.                 self.ui.peak_in.displayMeter(2, self.host.get_input_peak_value(pluginId, False))

  2754.             if self.ui.peak_out.isVisible():

  2755.                 self.ui.peak_out.displayMeter(1, self.host.get_output_peak_value(pluginId, True))

  2756.                 self.ui.peak_out.displayMeter(2, self.host.get_output_peak_value(pluginId, False))

  2757.             return

  2758. 

  2759.         if self.fPeaksCleared:

  2760.             return

  2761. 

  2762.         self.fPeaksCleared = True

  2763.         self.ui.peak_in.displayMeter(1, 0.0, True)

  2764.         self.ui.peak_in.displayMeter(2, 0.0, True)

  2765.         self.ui.peak_out.displayMeter(1, 0.0, True)

  2766.         self.ui.peak_out.displayMeter(2, 0.0, True)

  2767. 

  2768.     def idleSlow(self):

  2769.         self.getAndRefreshRuntimeInfo()

  2770. 

  2771.         if self.fPluginCount == 0 or self.fCurrentlyRemovingAllPlugins:

  2772.             return

  2773. 

  2774.         for pitem in self.fPluginList:

  2775.             if pitem is None:

  2776.                 break

  2777. 

  2778.             pitem.getWidget().idleSlow()

  2779. 

  2780.     def timerEvent(self, event):

  2781.         if event.timerId() == self.fIdleTimerFast:

  2782.             self.idleFast()

  2783. 

  2784.         elif event.timerId() == self.fIdleTimerSlow:

  2785.             self.idleSlow()

  2786. 

  2787.         QMainWindow.timerEvent(self, event)

  2788. 

  2789.     # --------------------------------------------------------------------------------------------------------

  2790.     # color/style change event

  2791. 

  2792.     def changeEvent(self, event):

  2793.         if event.type() in (QEvent.PaletteChange, QEvent.StyleChange):

  2794.             self.updateStyle()

  2795.         QMainWindow.changeEvent(self, event)

  2796. 

  2797.     def updateStyle(self):

  2798.         # Rack padding images setup

  2799.         rack_imgL = QImage(":/bitmaps/rack_padding_left.png")

  2800.         rack_imgR = QImage(":/bitmaps/rack_padding_right.png")

  2801. 

  2802.         min_value = 0.07

  2803. 

  2804.         if PYQT_VERSION >= 0x50600:

  2805.             value_fix = 1.0/(1.0-rack_imgL.scaled(1, 1, Qt.IgnoreAspectRatio, Qt.SmoothTransformation).pixelColor(0,0).blackF())

  2806.         else:

  2807.             value_fix = 1.5

  2808. 

  2809.         rack_pal = self.ui.rack.palette()

  2810.         bg_color = rack_pal.window().color()

  2811.         fg_color = rack_pal.text().color()

  2812.         bg_value = 1.0 - bg_color.blackF()

  2813.         if bg_value != 0.0 and bg_value < min_value:

  2814.             pad_color = bg_color.lighter(int(100*min_value/bg_value*value_fix))

  2815.         else:

  2816.             pad_color = QColor.fromHsvF(0.0, 0.0, min_value*value_fix)

  2817. 

  2818.         painter = QPainter()

  2819.         fillRect = rack_imgL.rect().adjusted(-1,-1,1,1)

  2820. 

  2821.         painter.begin(rack_imgL)

  2822.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2823.         painter.setBrush(pad_color)

  2824.         painter.drawRect(fillRect)

  2825.         painter.end()

  2826.         rack_pixmapL = QPixmap(rack_imgL)

  2827.         self.imgL_palette = QPalette()

  2828.         self.imgL_palette.setBrush(QPalette.Window, QBrush(rack_pixmapL))

  2829.         self.ui.pad_left.setPalette(self.imgL_palette)

  2830.         self.ui.pad_left.setAutoFillBackground(True)

  2831. 

  2832.         painter.begin(rack_imgR)

  2833.         painter.setCompositionMode(QPainter.CompositionMode_Multiply)

  2834.         painter.setBrush(pad_color)

  2835.         painter.drawRect(fillRect)

  2836.         painter.end()

  2837.         rack_pixmapR = QPixmap(rack_imgR)

  2838.         self.imgR_palette = QPalette()

  2839.         self.imgR_palette.setBrush(QPalette.Window, QBrush(rack_pixmapR))

  2840.         self.ui.pad_right.setPalette(self.imgR_palette)

  2841.         self.ui.pad_right.setAutoFillBackground(True)

  2842. 

  2843.         # qt's rgba is actually argb, so convert that

  2844.         bg_color_value = bg_color.rgba()

  2845.         bg_color_value = ((bg_color_value & 0xffffff) << 8) | (bg_color_value >> 24)

  2846. 

  2847.         fg_color_value = fg_color.rgba()

  2848.         fg_color_value = ((fg_color_value & 0xffffff) << 8) | (fg_color_value >> 24)

  2849. 

  2850.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_BACKGROUND_COLOR, bg_color_value, "")

  2851.         self.host.set_engine_option(ENGINE_OPTION_FRONTEND_FOREGROUND_COLOR, fg_color_value, "")

  2852. 

  2853.     # --------------------------------------------------------------------------------------------------------

  2854.     # paint event

  2855. 

  2856.     #def paintEvent(self, event):

  2857.         #QMainWindow.paintEvent(self, event)

  2858. 

  2859.         #if MACOS or not self.fSavedSettings[CARLA_KEY_CUSTOM_PAINTING]:

  2860.             #return

  2861. 

  2862.         #painter = QPainter(self)

  2863.         #painter.setBrush(QColor(36, 36, 36))

  2864.         #painter.setPen(QColor(62, 62, 62))

  2865.         #painter.drawRect(1, self.height()/2, self.width()-3, self.height()-self.height()/2-1)

  2866. 

  2867.     # --------------------------------------------------------------------------------------------------------

  2868.     # close event

  2869. 

  2870.     def shouldIgnoreClose(self):

  2871.         if self.host.isControl or self.host.isPlugin:

  2872.             return False

  2873.         if self.fCustomStopAction == self.CUSTOM_ACTION_APP_CLOSE:

  2874.             return False

  2875.         if self.fWindowCloseHideGui:

  2876.             return False

  2877.         if self.fSavedSettings[CARLA_KEY_MAIN_CONFIRM_EXIT]:

  2878.             return QMessageBox.question(self, self.tr("Quit"),

  2879.                                               self.tr("Are you sure you want to quit Carla?"),

  2880.                                               QMessageBox.Yes|QMessageBox.No) == QMessageBox.No

  2881.         return False

  2882. 

  2883.     def closeEvent(self, event):

  2884.         if self.shouldIgnoreClose():

  2885.             event.ignore()

  2886.             return

  2887. 

  2888.         if self.fWindowCloseHideGui and self.fCustomStopAction != self.CUSTOM_ACTION_APP_CLOSE:

  2889.             self.hideForNSM()

  2890.             self.host.nsm_ready(NSM_CALLBACK_HIDE_OPTIONAL_GUI)

  2891.             return

  2892. 

  2893.         patchcanvas.handleAllPluginsRemoved()

  2894. 

  2895.         if MACOS and self.fMacClosingHelper and not (self.host.isControl or self.host.isPlugin):

  2896.             self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2897.             self.fMacClosingHelper = False

  2898.             event.ignore()

  2899. 

  2900.             for i in reversed(range(self.fPluginCount)):

  2901.                 self.host.show_custom_ui(i, False)

  2902. 

  2903.             QTimer.singleShot(100, self.close)

  2904.             return

  2905. 

  2906.         self.killTimers()

  2907.         self.saveSettings()

  2908. 

  2909.         if self.host.is_engine_running() and not (self.host.isControl or self.host.isPlugin):

  2910.             if not self.slot_engineStop(True):

  2911.                 self.fCustomStopAction = self.CUSTOM_ACTION_APP_CLOSE

  2912.                 event.ignore()

  2913.                 return

  2914. 

  2915.         QMainWindow.closeEvent(self, event)

  2916. 

  2917.         # if we reach this point, fully close ourselves

  2918.         gCarla.gui = None

  2919.         QApplication.instance().quit()

  2920. 

  2921. # ------------------------------------------------------------------------------------------------

  2922. # Canvas callback

  2923. 

  2924. def canvasCallback(action, value1, value2, valueStr):

  2925.     host = gCarla.gui.host

  2926. 

  2927.     if gCarla.gui.fCustomStopAction == HostWindow.CUSTOM_ACTION_APP_CLOSE:

  2928.         return

  2929. 

  2930.     if action == patchcanvas.ACTION_GROUP_INFO:

  2931.         pass

  2932. 

  2933.     elif action == patchcanvas.ACTION_GROUP_RENAME:

  2934.         pass

  2935. 

  2936.     elif action == patchcanvas.ACTION_GROUP_SPLIT:

  2937.         groupId = value1

  2938.         patchcanvas.splitGroup(groupId)

  2939.         gCarla.gui.updateMiniCanvasLater()

  2940. 

  2941.     elif action == patchcanvas.ACTION_GROUP_JOIN:

  2942.         groupId = value1

  2943.         patchcanvas.joinGroup(groupId)

  2944.         gCarla.gui.updateMiniCanvasLater()

  2945. 

  2946.     elif action == patchcanvas.ACTION_GROUP_POSITION:

  2947.         if gCarla.gui.fIsProjectLoading:

  2948.             return

  2949.         if not host.is_engine_running():

  2950.             return

  2951.         groupId = value1

  2952.         x1, y1, x2, y2 = tuple(int(i) for i in valueStr.split(":"))

  2953.         host.patchbay_set_group_pos(gCarla.gui.fExternalPatchbay, groupId, x1, y1, x2, y2)

  2954.         gCarla.gui.updateMiniCanvasLater()

  2955. 

  2956.     elif action == patchcanvas.ACTION_PORT_INFO:

  2957.         pass

  2958. 

  2959.     elif action == patchcanvas.ACTION_PORT_RENAME:

  2960.         pass

  2961. 

  2962.     elif action == patchcanvas.ACTION_PORTS_CONNECT:

  2963.         gOut, pOut, gIn, pIn = tuple(int(i) for i in valueStr.split(":"))

  2964. 

  2965.         if not host.patchbay_connect(gCarla.gui.fExternalPatchbay, gOut, pOut, gIn, pIn):

  2966.             print("Connection failed:", host.get_last_error())

  2967. 

  2968.     elif action == patchcanvas.ACTION_PORTS_DISCONNECT:

  2969.         connectionId = value1

  2970. 

  2971.         if not host.patchbay_disconnect(gCarla.gui.fExternalPatchbay, connectionId):

  2972.             print("Disconnect failed:", host.get_last_error())

  2973. 

  2974.     elif action == patchcanvas.ACTION_PLUGIN_CLONE:

  2975.         pluginId = value1

  2976. 

  2977.         if not host.clone_plugin(pluginId):

  2978.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  2979.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  2980. 

  2981.     elif action == patchcanvas.ACTION_PLUGIN_EDIT:

  2982.         pluginId = value1

  2983.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2984. 

  2985.         if pwidget is not None:

  2986.             pwidget.showEditDialog()

  2987. 

  2988.     elif action == patchcanvas.ACTION_PLUGIN_RENAME:

  2989.         pluginId = value1

  2990.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2991. 

  2992.         if pwidget is not None:

  2993.             pwidget.showRenameDialog()

  2994. 

  2995.     elif action == patchcanvas.ACTION_PLUGIN_REPLACE:

  2996.         pluginId = value1

  2997.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  2998. 

  2999.         if pwidget is not None:

  3000.             pwidget.showReplaceDialog()

  3001. 

  3002.     elif action == patchcanvas.ACTION_PLUGIN_REMOVE:

  3003.         pluginId = value1

  3004. 

  3005.         if not host.remove_plugin(pluginId):

  3006.             CustomMessageBox(gCarla.gui, QMessageBox.Warning, gCarla.gui.tr("Error"), gCarla.gui.tr("Operation failed"),

  3007.                                          host.get_last_error(), QMessageBox.Ok, QMessageBox.Ok)

  3008. 

  3009.     elif action == patchcanvas.ACTION_PLUGIN_SHOW_UI:

  3010.         pluginId = value1

  3011.         pwidget  = gCarla.gui.getPluginSlotWidget(pluginId)

  3012. 

  3013.         if pwidget is not None:

  3014.             pwidget.showCustomUI()

  3015. 

  3016.     elif action == patchcanvas.ACTION_BG_RIGHT_CLICK:

  3017.         gCarla.gui.slot_showPluginActionsMenu()

  3018. 

  3019.     elif action == patchcanvas.ACTION_INLINE_DISPLAY:

  3020.         if gCarla.gui.fIsProjectLoading:

  3021.             return

  3022.         if not host.is_engine_running():

  3023.             return

  3024.         pluginId = value1

  3025.         width, height = [int(v) for v in valueStr.split(":")]

  3026.         return host.render_inline_display(pluginId, width, height)

  3027. 

  3028. # ------------------------------------------------------------------------------------------------------------

  3029. # Engine callback

  3030. 

  3031. def engineCallback(host, action, pluginId, value1, value2, value3, valuef, valueStr):

  3032.     # kdevelop likes this :)

  3033.     if False: host = CarlaHostNull()

  3034. 

  3035.     valueStr = charPtrToString(valueStr)

  3036. 

  3037.     if action == ENGINE_CALLBACK_ENGINE_STARTED:

  3038.         host.processMode   = value1

  3039.         host.transportMode = value2

  3040.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3041.         host.processMode   = value1

  3042.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3043.         host.transportMode  = value1

  3044.         host.transportExtra = valueStr

  3045. 

  3046.     if action == ENGINE_CALLBACK_DEBUG:

  3047.         host.DebugCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3048.     elif action == ENGINE_CALLBACK_PLUGIN_ADDED:

  3049.         host.PluginAddedCallback.emit(pluginId, value1, valueStr)

  3050.     elif action == ENGINE_CALLBACK_PLUGIN_REMOVED:

  3051.         host.PluginRemovedCallback.emit(pluginId)

  3052.     elif action == ENGINE_CALLBACK_PLUGIN_RENAMED:

  3053.         host.PluginRenamedCallback.emit(pluginId, valueStr)

  3054.     elif action == ENGINE_CALLBACK_PLUGIN_UNAVAILABLE:

  3055.         host.PluginUnavailableCallback.emit(pluginId, valueStr)

  3056.     elif action == ENGINE_CALLBACK_PARAMETER_VALUE_CHANGED:

  3057.         host.ParameterValueChangedCallback.emit(pluginId, value1, valuef)

  3058.     elif action == ENGINE_CALLBACK_PARAMETER_DEFAULT_CHANGED:

  3059.         host.ParameterDefaultChangedCallback.emit(pluginId, value1, valuef)

  3060.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_CONTROL_INDEX_CHANGED:

  3061.         host.ParameterMappedControlIndexChangedCallback.emit(pluginId, value1, value2)

  3062.     elif action == ENGINE_CALLBACK_PARAMETER_MAPPED_RANGE_CHANGED:

  3063.         minimum, maximum = (float(v) for v in valueStr.split(":", 2))

  3064.         host.ParameterMappedRangeChangedCallback.emit(pluginId, value1, minimum, maximum)

  3065.     elif action == ENGINE_CALLBACK_PARAMETER_MIDI_CHANNEL_CHANGED:

  3066.         host.ParameterMidiChannelChangedCallback.emit(pluginId, value1, value2)

  3067.     elif action == ENGINE_CALLBACK_PROGRAM_CHANGED:

  3068.         host.ProgramChangedCallback.emit(pluginId, value1)

  3069.     elif action == ENGINE_CALLBACK_MIDI_PROGRAM_CHANGED:

  3070.         host.MidiProgramChangedCallback.emit(pluginId, value1)

  3071.     elif action == ENGINE_CALLBACK_OPTION_CHANGED:

  3072.         host.OptionChangedCallback.emit(pluginId, value1, bool(value2))

  3073.     elif action == ENGINE_CALLBACK_UI_STATE_CHANGED:

  3074.         host.UiStateChangedCallback.emit(pluginId, value1)

  3075.     elif action == ENGINE_CALLBACK_NOTE_ON:

  3076.         host.NoteOnCallback.emit(pluginId, value1, value2, value3)

  3077.     elif action == ENGINE_CALLBACK_NOTE_OFF:

  3078.         host.NoteOffCallback.emit(pluginId, value1, value2)

  3079.     elif action == ENGINE_CALLBACK_UPDATE:

  3080.         host.UpdateCallback.emit(pluginId)

  3081.     elif action == ENGINE_CALLBACK_RELOAD_INFO:

  3082.         host.ReloadInfoCallback.emit(pluginId)

  3083.     elif action == ENGINE_CALLBACK_RELOAD_PARAMETERS:

  3084.         host.ReloadParametersCallback.emit(pluginId)

  3085.     elif action == ENGINE_CALLBACK_RELOAD_PROGRAMS:

  3086.         host.ReloadProgramsCallback.emit(pluginId)

  3087.     elif action == ENGINE_CALLBACK_RELOAD_ALL:

  3088.         host.ReloadAllCallback.emit(pluginId)

  3089.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_ADDED:

  3090.         host.PatchbayClientAddedCallback.emit(pluginId, value1, value2, valueStr)

  3091.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_REMOVED:

  3092.         host.PatchbayClientRemovedCallback.emit(pluginId)

  3093.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_RENAMED:

  3094.         host.PatchbayClientRenamedCallback.emit(pluginId, valueStr)

  3095.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_DATA_CHANGED:

  3096.         host.PatchbayClientDataChangedCallback.emit(pluginId, value1, value2)

  3097.     elif action == ENGINE_CALLBACK_PATCHBAY_CLIENT_POSITION_CHANGED:

  3098.         host.PatchbayClientPositionChangedCallback.emit(pluginId, value1, value2, value3, int(round(valuef)))

  3099.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_ADDED:

  3100.         host.PatchbayPortAddedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3101.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_REMOVED:

  3102.         host.PatchbayPortRemovedCallback.emit(pluginId, value1)

  3103.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_CHANGED:

  3104.         host.PatchbayPortChangedCallback.emit(pluginId, value1, value2, value3, valueStr)

  3105.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_ADDED:

  3106.         host.PatchbayPortGroupAddedCallback.emit(pluginId, value1, value2, valueStr)

  3107.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_REMOVED:

  3108.         host.PatchbayPortGroupRemovedCallback.emit(pluginId, value1)

  3109.     elif action == ENGINE_CALLBACK_PATCHBAY_PORT_GROUP_CHANGED:

  3110.         host.PatchbayPortGroupChangedCallback.emit(pluginId, value1, value2, valueStr)

  3111.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_ADDED:

  3112.         gOut, pOut, gIn, pIn = [int(i) for i in valueStr.split(":")] # FIXME

  3113.         host.PatchbayConnectionAddedCallback.emit(pluginId, gOut, pOut, gIn, pIn)

  3114.     elif action == ENGINE_CALLBACK_PATCHBAY_CONNECTION_REMOVED:

  3115.         host.PatchbayConnectionRemovedCallback.emit(pluginId, value1, value2)

  3116.     elif action == ENGINE_CALLBACK_ENGINE_STARTED:

  3117.         host.EngineStartedCallback.emit(pluginId, value1, value2, value3, valuef, valueStr)

  3118.     elif action == ENGINE_CALLBACK_ENGINE_STOPPED:

  3119.         host.EngineStoppedCallback.emit()

  3120.     elif action == ENGINE_CALLBACK_PROCESS_MODE_CHANGED:

  3121.         host.ProcessModeChangedCallback.emit(value1)

  3122.     elif action == ENGINE_CALLBACK_TRANSPORT_MODE_CHANGED:

  3123.         host.TransportModeChangedCallback.emit(value1, valueStr)

  3124.     elif action == ENGINE_CALLBACK_BUFFER_SIZE_CHANGED:

  3125.         host.BufferSizeChangedCallback.emit(value1)

  3126.     elif action == ENGINE_CALLBACK_SAMPLE_RATE_CHANGED:

  3127.         host.SampleRateChangedCallback.emit(valuef)

  3128.     elif action == ENGINE_CALLBACK_CANCELABLE_ACTION:

  3129.         host.CancelableActionCallback.emit(pluginId, bool(value1 != 0), valueStr)

  3130.     elif action == ENGINE_CALLBACK_PROJECT_LOAD_FINISHED:

  3131.         host.ProjectLoadFinishedCallback.emit()

  3132.     elif action == ENGINE_CALLBACK_NSM:

  3133.         host.NSMCallback.emit(value1, value2, valueStr)

  3134.     elif action == ENGINE_CALLBACK_IDLE:

  3135.         QApplication.processEvents()

  3136.     elif action == ENGINE_CALLBACK_INFO:

  3137.         host.InfoCallback.emit(valueStr)

  3138.     elif action == ENGINE_CALLBACK_ERROR:

  3139.         host.ErrorCallback.emit(valueStr)

  3140.     elif action == ENGINE_CALLBACK_QUIT:

  3141.         host.QuitCallback.emit()

  3142.     elif action == ENGINE_CALLBACK_INLINE_DISPLAY_REDRAW:

  3143.         host.InlineDisplayRedrawCallback.emit(pluginId)

  3144.     else:

  3145.         print("unhandled action", action)

  3146. 

  3147. # ------------------------------------------------------------------------------------------------------------

  3148. # File callback

  3149. 

  3150. def fileCallback(ptr, action, isDir, title, filter):

  3151.     title  = charPtrToString(title)

  3152.     filter = charPtrToString(filter)

  3153. 

  3154.     if action == FILE_CALLBACK_OPEN:

  3155.         ret, ok = QFileDialog.getOpenFileName(gCarla.gui, title, "", filter) #, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3156.     elif action == FILE_CALLBACK_SAVE:

  3157.         ret, ok = QFileDialog.getSaveFileName(gCarla.gui, title, "", filter, QFileDialog.ShowDirsOnly if isDir else 0x0)

  3158.     else:

  3159.         ret, ok = ("", "")

  3160. 

  3161.     # FIXME use ok value, test if it works as expected

  3162.     if not ret:

  3163.         return None

  3164. 

  3165.     # FIXME

  3166.     global fileRet

  3167.     fileRet = c_char_p(ret.encode("utf-8"))

  3168.     retval  = cast(byref(fileRet), POINTER(c_uintptr))

  3169.     return retval.contents.value

  3170. 

  3171. # ------------------------------------------------------------------------------------------------------------

  3172. # Init host

  3173. 

  3174. def initHost(initName, libPrefix, isControl, isPlugin, failError, HostClass = None):

  3175.     pathBinaries, pathResources = getPaths(libPrefix)

  3176. 

  3177.     # --------------------------------------------------------------------------------------------------------

  3178.     # Fail if binary dir is not found

  3179. 

  3180.     if not os.path.exists(pathBinaries):

  3181.         if failError:

  3182.             QMessageBox.critical(None, "Error", "Failed to find the carla binaries, cannot continue")

  3183.             sys.exit(1)

  3184.         return

  3185. 

  3186.     # --------------------------------------------------------------------------------------------------------

  3187.     # Check if we should open main lib as local or global

  3188. 

  3189.     settings = QSafeSettings("falkTX", "Carla2")

  3190. 

  3191.     loadGlobal = settings.value(CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL, CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL, bool)

  3192. 

  3193.     # --------------------------------------------------------------------------------------------------------

  3194.     # Set Carla library name

  3195. 

  3196.     libname   = "libcarla_%s2.%s" % ("control" if isControl else "standalone", DLL_EXTENSION)

  3197.     libname   = os.path.join(pathBinaries, libname)

  3198.     utilsname = os.path.join(pathBinaries, "libcarla_utils.%s" % (DLL_EXTENSION))

  3199. 

  3200.     # --------------------------------------------------------------------------------------------------------

  3201.     # Print info

  3202. 

  3203.     if not (gCarla.nogui and isinstance(gCarla.nogui, int)):

  3204.         print("Carla %s started, status:" % VERSION)

  3205.         print("  Python version: %s" % sys.version.split(" ",1)[0])

  3206.         print("  Qt version:     %s" % QT_VERSION_STR)

  3207.         print("  PyQt version:   %s" % PYQT_VERSION_STR)

  3208.         print("  Binary dir:     %s" % pathBinaries)

  3209.         print("  Resources dir:  %s" % pathResources)

  3210. 

  3211.     # --------------------------------------------------------------------------------------------------------

  3212.     # Init host

  3213. 

  3214.     if failError:

  3215.         # no try

  3216.         host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3217.     else:

  3218.         try:

  3219.             host = HostClass() if HostClass is not None else CarlaHostQtDLL(libname, loadGlobal)

  3220.         except:

  3221.             host = CarlaHostQtNull()

  3222. 

  3223.     host.isControl = isControl

  3224.     host.isPlugin  = isPlugin

  3225. 

  3226.     host.set_engine_callback(lambda h,a,p,v1,v2,v3,vf,vs: engineCallback(host,a,p,v1,v2,v3,vf,vs))

  3227.     host.set_file_callback(fileCallback)

  3228. 

  3229.     # If it's a plugin the paths are already set

  3230.     if not isPlugin:

  3231.         host.pathBinaries  = pathBinaries

  3232.         host.pathResources = pathResources

  3233.         host.set_engine_option(ENGINE_OPTION_PATH_BINARIES,  0, pathBinaries)

  3234.         host.set_engine_option(ENGINE_OPTION_PATH_RESOURCES, 0, pathResources)

  3235. 

  3236.         if not isControl:

  3237.             host.nsmOK = host.nsm_init(os.getpid(), initName)

  3238. 

  3239.     # --------------------------------------------------------------------------------------------------------

  3240.     # Init utils

  3241. 

  3242.     gCarla.utils = CarlaUtils(utilsname)

  3243.     gCarla.utils.set_process_name(os.path.basename(initName))

  3244. 

  3245.     try:

  3246.         sys.stdout.flush()

  3247.     except:

  3248.         pass

  3249. 

  3250.     sys.stdout = CarlaPrint(False)

  3251.     sys.stderr = CarlaPrint(True)

  3252.     sys.excepthook = sys_excepthook

  3253. 

  3254.     # --------------------------------------------------------------------------------------------------------

  3255.     # Done

  3256. 

  3257.     return host

  3258. 

  3259. # ------------------------------------------------------------------------------------------------------------

  3260. # Load host settings

  3261. 

  3262. def loadHostSettings(host):

  3263.     # kdevelop likes this :)

  3264.     if False: host = CarlaHostNull()

  3265. 

  3266.     settings = QSafeSettings("falkTX", "Carla2")

  3267. 

  3268.     host.experimental = settings.value(CARLA_KEY_MAIN_EXPERIMENTAL, CARLA_DEFAULT_MAIN_EXPERIMENTAL, bool)

  3269.     host.exportLV2 = settings.value(CARLA_KEY_EXPERIMENTAL_EXPORT_LV2, CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT, bool)

  3270.     host.manageUIs = settings.value(CARLA_KEY_ENGINE_MANAGE_UIS, CARLA_DEFAULT_MANAGE_UIS, bool)

  3271.     host.maxParameters = settings.value(CARLA_KEY_ENGINE_MAX_PARAMETERS, CARLA_DEFAULT_MAX_PARAMETERS, int)

  3272.     host.resetXruns = settings.value(CARLA_KEY_ENGINE_RESET_XRUNS, CARLA_DEFAULT_RESET_XRUNS, bool)

  3273.     host.forceStereo = settings.value(CARLA_KEY_ENGINE_FORCE_STEREO, CARLA_DEFAULT_FORCE_STEREO, bool)

  3274.     host.preferPluginBridges = settings.value(CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES, CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES, bool)

  3275.     host.preferUIBridges = settings.value(CARLA_KEY_ENGINE_PREFER_UI_BRIDGES, CARLA_DEFAULT_PREFER_UI_BRIDGES, bool)

  3276.     host.preventBadBehaviour = settings.value(CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR, bool)

  3277.     host.showLogs = settings.value(CARLA_KEY_MAIN_SHOW_LOGS, CARLA_DEFAULT_MAIN_SHOW_LOGS, bool) and not WINDOWS

  3278.     host.showPluginBridges = settings.value(CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES, bool)

  3279.     host.showWineBridges = settings.value(CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES, CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES, bool)

  3280.     host.uiBridgesTimeout = settings.value(CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT, CARLA_DEFAULT_UI_BRIDGES_TIMEOUT, int)

  3281.     host.uisAlwaysOnTop = settings.value(CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP, CARLA_DEFAULT_UIS_ALWAYS_ON_TOP, bool)

  3282. 

  3283.     if host.isPlugin:

  3284.         return

  3285. 

  3286.     host.transportExtra = settings.value(CARLA_KEY_ENGINE_TRANSPORT_EXTRA, "", str)

  3287. 

  3288.     # enums

  3289.     if host.audioDriverForced is None:

  3290.         host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, int)

  3291. 

  3292.     if not host.processModeForced:

  3293.         host.processMode = settings.value(CARLA_KEY_ENGINE_PROCESS_MODE, CARLA_DEFAULT_PROCESS_MODE, int)

  3294. 

  3295.     host.nextProcessMode = host.processMode

  3296. 

  3297.     # --------------------------------------------------------------------------------------------------------

  3298.     # fix things if needed

  3299. 

  3300.     if host.processMode == ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS:

  3301.         if LADISH_APP_NAME:

  3302.             print("LADISH detected but using multiple clients (not allowed), forcing single client now")

  3303.             host.nextProcessMode = host.processMode = ENGINE_PROCESS_MODE_SINGLE_CLIENT

  3304. 

  3305.         else:

  3306.             host.transportMode = ENGINE_TRANSPORT_MODE_JACK

  3307. 

  3308.     if gCarla.nogui:

  3309.         host.showLogs = False

  3310. 

  3311.     # --------------------------------------------------------------------------------------------------------

  3312.     # run headless host now if nogui option enabled

  3313. 

  3314.     if gCarla.nogui:

  3315.         runHostWithoutUI(host)

  3316. 

  3317. # ------------------------------------------------------------------------------------------------------------

  3318. # Set host settings

  3319. 

  3320. def setHostSettings(host):

  3321.     # kdevelop likes this :)

  3322.     if False: host = CarlaHostNull()

  3323. 

  3324.     host.set_engine_option(ENGINE_OPTION_FORCE_STEREO,          host.forceStereo,         "")

  3325.     host.set_engine_option(ENGINE_OPTION_MAX_PARAMETERS,        host.maxParameters,       "")

  3326.     host.set_engine_option(ENGINE_OPTION_RESET_XRUNS,           host.resetXruns,          "")

  3327.     host.set_engine_option(ENGINE_OPTION_PREFER_PLUGIN_BRIDGES, host.preferPluginBridges, "")

  3328.     host.set_engine_option(ENGINE_OPTION_PREFER_UI_BRIDGES,     host.preferUIBridges,     "")

  3329.     host.set_engine_option(ENGINE_OPTION_PREVENT_BAD_BEHAVIOUR, host.preventBadBehaviour, "")

  3330.     host.set_engine_option(ENGINE_OPTION_UI_BRIDGES_TIMEOUT,    host.uiBridgesTimeout,    "")

  3331.     host.set_engine_option(ENGINE_OPTION_UIS_ALWAYS_ON_TOP,     host.uisAlwaysOnTop,      "")

  3332. 

  3333.     if host.isPlugin or host.isRemote or host.is_engine_running():

  3334.         return

  3335. 

  3336.     host.set_engine_option(ENGINE_OPTION_PROCESS_MODE,          host.nextProcessMode,     "")

  3337.     host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE,        host.transportMode,       host.transportExtra)

  3338.     host.set_engine_option(ENGINE_OPTION_DEBUG_CONSOLE_OUTPUT,  host.showLogs,            "")

  3339. 

  3340.     if not (NSM_URL and host.nsmOK):

  3341.         host.set_engine_option(ENGINE_OPTION_CLIENT_NAME_PREFIX, 0, gCarla.cnprefix)

  3342. 

  3343. # ------------------------------------------------------------------------------------------------------------

  3344. # Set Engine settings according to carla preferences. Returns selected audio driver.

  3345. 

  3346. def setEngineSettings(host, oscPort = None):

  3347.     # kdevelop likes this :)

  3348.     if False: host = CarlaHostNull()

  3349. 

  3350.     # --------------------------------------------------------------------------------------------------------

  3351.     # do nothing if control

  3352. 

  3353.     if host.isControl:

  3354.         return "Control"

  3355. 

  3356.     # --------------------------------------------------------------------------------------------------------

  3357. 

  3358.     settings = QSafeSettings("falkTX", "Carla2")

  3359. 

  3360.     # --------------------------------------------------------------------------------------------------------

  3361.     # main settings

  3362. 

  3363.     setHostSettings(host)

  3364. 

  3365.     # --------------------------------------------------------------------------------------------------------

  3366.     # file paths

  3367. 

  3368.     FILE_PATH_AUDIO = settings.value(CARLA_KEY_PATHS_AUDIO, CARLA_DEFAULT_FILE_PATH_AUDIO, list)

  3369.     FILE_PATH_MIDI  = settings.value(CARLA_KEY_PATHS_MIDI,  CARLA_DEFAULT_FILE_PATH_MIDI, list)

  3370. 

  3371.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_AUDIO, splitter.join(FILE_PATH_AUDIO))

  3372.     host.set_engine_option(ENGINE_OPTION_FILE_PATH, FILE_MIDI,  splitter.join(FILE_PATH_MIDI))

  3373. 

  3374.     # --------------------------------------------------------------------------------------------------------

  3375.     # plugin paths

  3376. 

  3377.     LADSPA_PATH = settings.value(CARLA_KEY_PATHS_LADSPA, CARLA_DEFAULT_LADSPA_PATH, list)

  3378.     DSSI_PATH   = settings.value(CARLA_KEY_PATHS_DSSI,   CARLA_DEFAULT_DSSI_PATH, list)

  3379.     LV2_PATH    = settings.value(CARLA_KEY_PATHS_LV2,    CARLA_DEFAULT_LV2_PATH, list)

  3380.     VST2_PATH   = settings.value(CARLA_KEY_PATHS_VST2,   CARLA_DEFAULT_VST2_PATH, list)

  3381.     VST3_PATH   = settings.value(CARLA_KEY_PATHS_VST3,   CARLA_DEFAULT_VST3_PATH, list)

  3382.     SF2_PATH    = settings.value(CARLA_KEY_PATHS_SF2,    CARLA_DEFAULT_SF2_PATH, list)

  3383.     SFZ_PATH    = settings.value(CARLA_KEY_PATHS_SFZ,    CARLA_DEFAULT_SFZ_PATH, list)

  3384. 

  3385.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LADSPA, splitter.join(LADSPA_PATH))

  3386.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_DSSI,   splitter.join(DSSI_PATH))

  3387.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_LV2,    splitter.join(LV2_PATH))

  3388.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST2,   splitter.join(VST2_PATH))

  3389.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_VST3,   splitter.join(VST3_PATH))

  3390.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SF2,    splitter.join(SF2_PATH))

  3391.     host.set_engine_option(ENGINE_OPTION_PLUGIN_PATH, PLUGIN_SFZ,    splitter.join(SFZ_PATH))

  3392. 

  3393.     # --------------------------------------------------------------------------------------------------------

  3394.     # don't continue if plugin

  3395. 

  3396.     if host.isPlugin:

  3397.         return "Plugin"

  3398. 

  3399.     # --------------------------------------------------------------------------------------------------------

  3400.     # osc settings

  3401. 

  3402.     if oscPort is not None and isinstance(oscPort, int):

  3403.         oscEnabled = True

  3404.         portNumTCP = portNumUDP = oscPort

  3405. 

  3406.     else:

  3407.         oscEnabled = settings.value(CARLA_KEY_OSC_ENABLED, CARLA_DEFAULT_OSC_ENABLED, bool)

  3408. 

  3409.         if not settings.value(CARLA_KEY_OSC_TCP_PORT_ENABLED, CARLA_DEFAULT_OSC_TCP_PORT_ENABLED, bool):

  3410.             portNumTCP = -1

  3411.         elif settings.value(CARLA_KEY_OSC_TCP_PORT_RANDOM, CARLA_DEFAULT_OSC_TCP_PORT_RANDOM, bool):

  3412.             portNumTCP = 0

  3413.         else:

  3414.             portNumTCP = settings.value(CARLA_KEY_OSC_TCP_PORT_NUMBER, CARLA_DEFAULT_OSC_TCP_PORT_NUMBER, int)

  3415. 

  3416.         if not settings.value(CARLA_KEY_OSC_UDP_PORT_ENABLED, CARLA_DEFAULT_OSC_UDP_PORT_ENABLED, bool):

  3417.             portNumUDP = -1

  3418.         elif settings.value(CARLA_KEY_OSC_UDP_PORT_RANDOM, CARLA_DEFAULT_OSC_UDP_PORT_RANDOM, bool):

  3419.             portNumUDP = 0

  3420.         else:

  3421.             portNumUDP = settings.value(CARLA_KEY_OSC_UDP_PORT_NUMBER, CARLA_DEFAULT_OSC_UDP_PORT_NUMBER, int)

  3422. 

  3423.     host.set_engine_option(ENGINE_OPTION_OSC_ENABLED, 1 if oscEnabled else 0, "")

  3424.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_TCP, portNumTCP, "")

  3425.     host.set_engine_option(ENGINE_OPTION_OSC_PORT_UDP, portNumUDP, "")

  3426. 

  3427.     # --------------------------------------------------------------------------------------------------------

  3428.     # wine settings

  3429. 

  3430.     optWineExecutable = settings.value(CARLA_KEY_WINE_EXECUTABLE, CARLA_DEFAULT_WINE_EXECUTABLE, str)

  3431.     optWineAutoPrefix = settings.value(CARLA_KEY_WINE_AUTO_PREFIX, CARLA_DEFAULT_WINE_AUTO_PREFIX, bool)

  3432.     optWineFallbackPrefix = settings.value(CARLA_KEY_WINE_FALLBACK_PREFIX, CARLA_DEFAULT_WINE_FALLBACK_PREFIX, str)

  3433.     optWineRtPrioEnabled = settings.value(CARLA_KEY_WINE_RT_PRIO_ENABLED, CARLA_DEFAULT_WINE_RT_PRIO_ENABLED, bool)

  3434.     optWineBaseRtPrio = settings.value(CARLA_KEY_WINE_BASE_RT_PRIO,   CARLA_DEFAULT_WINE_BASE_RT_PRIO, int)

  3435.     optWineServerRtPrio = settings.value(CARLA_KEY_WINE_SERVER_RT_PRIO, CARLA_DEFAULT_WINE_SERVER_RT_PRIO, int)

  3436. 

  3437.     host.set_engine_option(ENGINE_OPTION_WINE_EXECUTABLE, 0, optWineExecutable)

  3438.     host.set_engine_option(ENGINE_OPTION_WINE_AUTO_PREFIX, 1 if optWineAutoPrefix else 0, "")

  3439.     host.set_engine_option(ENGINE_OPTION_WINE_FALLBACK_PREFIX, 0, os.path.expanduser(optWineFallbackPrefix))

  3440.     host.set_engine_option(ENGINE_OPTION_WINE_RT_PRIO_ENABLED, 1 if optWineRtPrioEnabled else 0, "")

  3441.     host.set_engine_option(ENGINE_OPTION_WINE_BASE_RT_PRIO, optWineBaseRtPrio, "")

  3442.     host.set_engine_option(ENGINE_OPTION_WINE_SERVER_RT_PRIO, optWineServerRtPrio, "")

  3443. 

  3444.     # --------------------------------------------------------------------------------------------------------

  3445.     # driver and device settings

  3446. 

  3447.     # driver name

  3448.     if host.audioDriverForced is not None:

  3449.         audioDriver = host.audioDriverForced

  3450.     else:

  3451.         try:

  3452.             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, str)

  3453.         except:

  3454.             audioDriver = CARLA_DEFAULT_AUDIO_DRIVER

  3455. 

  3456.     # driver options

  3457.     audioDevice = settings.value("%s%s/Device" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), "", str)

  3458.     audioBufferSize = settings.value("%s%s/BufferSize" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_BUFFER_SIZE, int)

  3459.     audioSampleRate = settings.value("%s%s/SampleRate" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_SAMPLE_RATE, int)

  3460.     audioTripleBuffer = settings.value("%s%s/TripleBuffer" % (CARLA_KEY_ENGINE_DRIVER_PREFIX, audioDriver), CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER, bool)

  3461. 

  3462.     # Only setup audio things if engine is not running

  3463.     if not host.is_engine_running():

  3464.         host.set_engine_option(ENGINE_OPTION_AUDIO_DRIVER, 0, audioDriver)

  3465.         host.set_engine_option(ENGINE_OPTION_AUDIO_DEVICE, 0, audioDevice)

  3466. 

  3467.         if not audioDriver.startswith("JACK"):

  3468.             host.set_engine_option(ENGINE_OPTION_AUDIO_BUFFER_SIZE, audioBufferSize, "")

  3469.             host.set_engine_option(ENGINE_OPTION_AUDIO_SAMPLE_RATE, audioSampleRate, "")

  3470.             host.set_engine_option(ENGINE_OPTION_AUDIO_TRIPLE_BUFFER, 1 if audioTripleBuffer else 0, "")

  3471. 

  3472.     # --------------------------------------------------------------------------------------------------------

  3473.     # fix things if needed

  3474. 

  3475.     if audioDriver != "JACK" and host.transportMode == ENGINE_TRANSPORT_MODE_JACK:

  3476.         host.transportMode = ENGINE_TRANSPORT_MODE_INTERNAL

  3477.         host.set_engine_option(ENGINE_OPTION_TRANSPORT_MODE, ENGINE_TRANSPORT_MODE_INTERNAL, host.transportExtra)

  3478. 

  3479.     # --------------------------------------------------------------------------------------------------------

  3480.     # return selected driver name

  3481. 

  3482.     return audioDriver

  3483. 

  3484. # ------------------------------------------------------------------------------------------------------------

  3485. # Run Carla without showing UI

  3486. 

  3487. def runHostWithoutUI(host):

  3488.     # kdevelop likes this :)

  3489.     if False: host = CarlaHostNull()

  3490. 

  3491.     # --------------------------------------------------------------------------------------------------------

  3492.     # Some initial checks

  3493. 

  3494.     if not gCarla.nogui:

  3495.         return

  3496. 

  3497.     projectFile = getInitialProjectFile(True)

  3498. 

  3499.     if gCarla.nogui is True:

  3500.         oscPort = None

  3501. 

  3502.         if not projectFile:

  3503.             print("Carla no-gui mode can only be used together with a project file.")

  3504.             sys.exit(1)

  3505. 

  3506.     else:

  3507.         oscPort = gCarla.nogui

  3508. 

  3509.     # --------------------------------------------------------------------------------------------------------

  3510.     # Additional imports

  3511. 

  3512.     from time import sleep

  3513. 

  3514.     # --------------------------------------------------------------------------------------------------------

  3515.     # Init engine

  3516. 

  3517.     audioDriver = setEngineSettings(host, oscPort)

  3518.     if not host.engine_init(audioDriver, "Carla"):

  3519.         print("Engine failed to initialize, possible reasons:\n%s" % host.get_last_error())

  3520.         sys.exit(1)

  3521. 

  3522.     if projectFile and not host.load_project(projectFile):

  3523.         print("Failed to load selected project file, possible reasons:\n%s" % host.get_last_error())

  3524.         host.engine_close()

  3525.         sys.exit(1)

  3526. 

  3527.     # --------------------------------------------------------------------------------------------------------

  3528.     # Idle

  3529. 

  3530.     print("Carla ready!")

  3531. 

  3532.     while host.is_engine_running() and not gCarla.term:

  3533.         host.engine_idle()

  3534.         sleep(0.0333) # 30 Hz

  3535. 

  3536.     # --------------------------------------------------------------------------------------------------------

  3537.     # Stop

  3538. 

  3539.     host.engine_close()

  3540.     sys.exit(0)

  3541. 

  3542. # ------------------------------------------------------------------------------------------------------------