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

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  1. #!/usr/bin/env python3

  2. # SPDX-FileCopyrightText: 2011-2025 Filipe Coelho <falktx@falktx.com>

  3. # SPDX-License-Identifier: GPL-2.0-or-later

  4. 

  5. # ------------------------------------------------------------------------------------------------------------

  6. # Imports (Global)

  7. 

  8. import os

  9. import sys

  10. 

  11. # ------------------------------------------------------------------------------------------------------------

  12. # Imports (ctypes)

  13. 

  14. from ctypes import CDLL, RTLD_GLOBAL

  15. 

  16. # ------------------------------------------------------------------------------------------------------------

  17. # Imports (PyQt)

  18. 

  19. from qt_compat import qt_config

  20. 

  21. # pylint: disable=import-error

  22. 

  23. if qt_config == 5:

  24.     from PyQt5.QtCore import QT_VERSION, Qt, QCoreApplication, QLibraryInfo, QLocale, QTranslator

  25.     from PyQt5.QtGui import QColor, QIcon, QPalette

  26.     from PyQt5.QtWidgets import QApplication

  27. elif qt_config == 6:

  28.     from PyQt6.QtCore import QT_VERSION, Qt, QCoreApplication, QLibraryInfo, QLocale, QTranslator

  29.     from PyQt6.QtGui import QColor, QIcon, QPalette

  30.     from PyQt6.QtWidgets import QApplication

  31. 

  32. # pylint: enable=import-error

  33. # pylint: disable=possibly-used-before-assignment

  34. 

  35. # ------------------------------------------------------------------------------------------------------------

  36. # Imports (Custom)

  37. 

  38. from carla_backend import (

  39.     CARLA_OS_64BIT,

  40.     CARLA_OS_LINUX,

  41.     CARLA_OS_MAC,

  42.     CARLA_OS_WIN,

  43.     CARLA_VERSION_STRING,

  44. )

  45. 

  46. from carla_shared import (

  47.     CARLA_KEY_MAIN_USE_PRO_THEME,

  48.     CARLA_KEY_MAIN_PRO_THEME_COLOR,

  49.     CARLA_DEFAULT_MAIN_USE_PRO_THEME,

  50.     CARLA_DEFAULT_MAIN_PRO_THEME_COLOR,

  51.     CWD,

  52.     getPaths,

  53.     gCarla

  54. )

  55. 

  56. from utils import QSafeSettings

  57. 

  58. # ------------------------------------------------------------------------------------------------------------

  59. 

  60. class CarlaApplication():

  61.     def __init__(self, appName = "Carla2", libPrefix = None):

  62.         pathBinaries, pathResources = getPaths(libPrefix)

  63. 

  64.         # Needed for macOS and Windows

  65.         if os.path.exists(CWD) and (CARLA_OS_MAC or CARLA_OS_WIN):

  66.             QApplication.addLibraryPath(CWD)

  67. 

  68.         # Needed for local wine build

  69.         if CARLA_OS_WIN and CWD.endswith(("frontend", "resources")) and os.getenv("CXFREEZE") is None:

  70.             if CARLA_OS_64BIT:

  71.                 path = "H:\\PawPawBuilds\\targets\\win64\\lib\\qt5\\plugins"

  72.             else:

  73.                 path = "H:\\PawPawBuilds\\targets\\win32\\lib\\qt5\\plugins"

  74.             QApplication.addLibraryPath(path)

  75. 

  76.         # Try resource dir as library path first

  77.         if os.path.exists(os.path.join(pathResources, "styles", "carlastyle.json")):

  78.             QApplication.addLibraryPath(pathResources)

  79.             stylesDir = pathResources

  80. 

  81.         # Use binary dir as library path

  82.         elif os.path.exists(pathBinaries):

  83.             QApplication.addLibraryPath(pathBinaries)

  84.             stylesDir = pathBinaries

  85. 

  86.         # If style is not available we can still fake it

  87.         else:

  88.             stylesDir = ""

  89. 

  90.         # Set up translations

  91.         currentLocale = QLocale()

  92.         appTranslator = QTranslator()

  93.         sysTranslator = None

  94.         pathTranslations = os.path.join(pathResources, "translations")

  95.         if appTranslator.load(currentLocale, "carla", "_", pathTranslations):

  96.             sysTranslator = QTranslator()

  97.             pathSysTranslations = pathTranslations

  98.             if not sysTranslator.load(currentLocale, "qt", "_", pathSysTranslations):

  99.                 pathSysTranslations = QLibraryInfo.location(QLibraryInfo.TranslationsPath)

  100.                 sysTranslator.load(currentLocale, "qt", "_", pathSysTranslations)

  101.         else:

  102.             appTranslator = None

  103.         self.fAppTranslator = appTranslator

  104.         self.fSysTranslator = sysTranslator

  105. 

  106.         # base settings

  107.         settings    = QSafeSettings("falkTX", appName)

  108.         useProTheme = CARLA_OS_MAC or settings.value(CARLA_KEY_MAIN_USE_PRO_THEME, CARLA_DEFAULT_MAIN_USE_PRO_THEME, bool)

  109. 

  110.         if not useProTheme:

  111.             self.createApp(appName)

  112.             return

  113. 

  114.         # set style

  115.         QApplication.setStyle("carla" if stylesDir else "fusion")

  116. 

  117.         # create app

  118.         self.createApp(appName)

  119. 

  120.         if gCarla.nogui:

  121.             return

  122. 

  123.         self.fApp.setStyle("carla" if stylesDir else "fusion")

  124. 

  125.         if CARLA_OS_WIN:

  126.             carlastyle1 = os.path.join(pathBinaries, "styles", "carlastyle.dll")

  127.             carlastyle2 = os.path.join(pathResources, "styles", "carlastyle.dll")

  128.             carlastyle = carlastyle2 if os.path.exists(carlastyle2) else carlastyle1

  129.             self._stylelib = CDLL(carlastyle, RTLD_GLOBAL)

  130.             self._stylelib.set_qt_app_style.argtypes = None

  131.             self._stylelib.set_qt_app_style.restype = None

  132.             self._stylelib.set_qt_app_style()

  133. 

  134.         # set palette

  135.         proThemeColor = settings.value(CARLA_KEY_MAIN_PRO_THEME_COLOR, CARLA_DEFAULT_MAIN_PRO_THEME_COLOR, str).lower()

  136. 

  137.         if CARLA_OS_MAC or proThemeColor == "black":

  138.             self.createPaletteBlack()

  139. 

  140.         elif proThemeColor == "blue":

  141.             self.createPaletteBlue()

  142. 

  143.     def createApp(self, appName):

  144.         if qt_config == 5 and CARLA_OS_LINUX:

  145.             # AA_X11InitThreads is not available on old PyQt versions

  146.             try:

  147.                 attr = Qt.AA_X11InitThreads

  148.             except:

  149.                 attr = 10

  150.             QApplication.setAttribute(attr)

  151. 

  152.             if QT_VERSION >= 0x50600:

  153.                 QApplication.setAttribute(Qt.AA_EnableHighDpiScaling)

  154.                 QApplication.setAttribute(Qt.AA_UseHighDpiPixmaps)

  155. 

  156.         if CARLA_OS_MAC:

  157.             QApplication.setAttribute(Qt.AA_DontShowIconsInMenus)

  158. 

  159.         args = sys.argv[:]

  160. 

  161.         if CARLA_OS_WIN:

  162.             args += ["-platform", "windows:fontengine=freetype"]

  163. 

  164.         self.fApp = QCoreApplication(args) if gCarla.nogui else QApplication(args)

  165.         self.fApp.setApplicationName(appName)

  166.         self.fApp.setApplicationVersion(CARLA_VERSION_STRING)

  167.         self.fApp.setOrganizationName("falkTX")

  168. 

  169.         if self.fAppTranslator is not None:

  170.             self.fApp.installTranslator(self.fAppTranslator)

  171.             self.fApp.installTranslator(self.fSysTranslator)

  172. 

  173.         if gCarla.nogui:

  174.             return

  175. 

  176.         if appName == "Carla2-Control":

  177.             if QT_VERSION >= 0x50700:

  178.                 self.fApp.setDesktopFileName("carla-control")

  179.             self.fApp.setWindowIcon(QIcon(":/scalable/carla-control.svg"))

  180.         else:

  181.             if QT_VERSION >= 0x50700:

  182.                 self.fApp.setDesktopFileName("carla")

  183.             self.fApp.setWindowIcon(QIcon(":/scalable/carla.svg"))

  184. 

  185.     def createPaletteBlack(self):

  186.         self.fPalBlack = QPalette()

  187.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Window, QColor(14, 14, 14))

  188.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Window, QColor(17, 17, 17))

  189.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Window, QColor(17, 17, 17))

  190.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.WindowText, QColor(83, 83, 83))

  191.         self.fPalBlack.setColor(QPalette.Active,   QPalette.WindowText, QColor(240, 240, 240))

  192.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.WindowText, QColor(240, 240, 240))

  193.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Base, QColor(6, 6, 6))

  194.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Base, QColor(7, 7, 7))

  195.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Base, QColor(7, 7, 7))

  196.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.AlternateBase, QColor(12, 12, 12))

  197.         self.fPalBlack.setColor(QPalette.Active,   QPalette.AlternateBase, QColor(14, 14, 14))

  198.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.AlternateBase, QColor(14, 14, 14))

  199.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.ToolTipBase, QColor(4, 4, 4))

  200.         self.fPalBlack.setColor(QPalette.Active,   QPalette.ToolTipBase, QColor(4, 4, 4))

  201.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.ToolTipBase, QColor(4, 4, 4))

  202.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.ToolTipText, QColor(230, 230, 230))

  203.         self.fPalBlack.setColor(QPalette.Active,   QPalette.ToolTipText, QColor(230, 230, 230))

  204.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.ToolTipText, QColor(230, 230, 230))

  205.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Text, QColor(74, 74, 74))

  206.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Text, QColor(230, 230, 230))

  207.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Text, QColor(230, 230, 230))

  208.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Button, QColor(24, 24, 24))

  209.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Button, QColor(28, 28, 28))

  210.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Button, QColor(28, 28, 28))

  211.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.ButtonText, QColor(90, 90, 90))

  212.         self.fPalBlack.setColor(QPalette.Active,   QPalette.ButtonText, QColor(240, 240, 240))

  213.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.ButtonText, QColor(240, 240, 240))

  214.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.BrightText, QColor(255, 255, 255))

  215.         self.fPalBlack.setColor(QPalette.Active,   QPalette.BrightText, QColor(255, 255, 255))

  216.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.BrightText, QColor(255, 255, 255))

  217.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Light, QColor(191, 191, 191))

  218.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Light, QColor(191, 191, 191))

  219.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Light, QColor(191, 191, 191))

  220.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Midlight, QColor(155, 155, 155))

  221.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Midlight, QColor(155, 155, 155))

  222.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Midlight, QColor(155, 155, 155))

  223.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Dark, QColor(129, 129, 129))

  224.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Dark, QColor(129, 129, 129))

  225.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Dark, QColor(129, 129, 129))

  226.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Mid, QColor(94, 94, 94))

  227.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Mid, QColor(94, 94, 94))

  228.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Mid, QColor(94, 94, 94))

  229.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Shadow, QColor(155, 155, 155))

  230.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Shadow, QColor(155, 155, 155))

  231.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Shadow, QColor(155, 155, 155))

  232.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Highlight, QColor(14, 14, 14))

  233.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Highlight, QColor(60, 60, 60))

  234.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Highlight, QColor(34, 34, 34))

  235.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.HighlightedText, QColor(83, 83, 83))

  236.         self.fPalBlack.setColor(QPalette.Active,   QPalette.HighlightedText, QColor(255, 255, 255))

  237.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.HighlightedText, QColor(240, 240, 240))

  238.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.Link, QColor(34, 34, 74))

  239.         self.fPalBlack.setColor(QPalette.Active,   QPalette.Link, QColor(100, 100, 230))

  240.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.Link, QColor(100, 100, 230))

  241.         self.fPalBlack.setColor(QPalette.Disabled, QPalette.LinkVisited, QColor(74, 34, 74))

  242.         self.fPalBlack.setColor(QPalette.Active,   QPalette.LinkVisited, QColor(230, 100, 230))

  243.         self.fPalBlack.setColor(QPalette.Inactive, QPalette.LinkVisited, QColor(230, 100, 230))

  244.         self.fApp.setPalette(self.fPalBlack)

  245. 

  246.     def createPaletteBlue(self):

  247.         self.fPalBlue = QPalette()

  248.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Window, QColor(32, 35, 39))

  249.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Window, QColor(37, 40, 45))

  250.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Window, QColor(37, 40, 45))

  251.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.WindowText, QColor(89, 95, 104))

  252.         self.fPalBlue.setColor(QPalette.Active,   QPalette.WindowText, QColor(223, 237, 255))

  253.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.WindowText, QColor(223, 237, 255))

  254.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Base, QColor(48, 53, 60))

  255.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Base, QColor(55, 61, 69))

  256.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Base, QColor(55, 61, 69))

  257.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.AlternateBase, QColor(60, 64, 67))

  258.         self.fPalBlue.setColor(QPalette.Active,   QPalette.AlternateBase, QColor(69, 73, 77))

  259.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.AlternateBase, QColor(69, 73, 77))

  260.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.ToolTipBase, QColor(182, 193, 208))

  261.         self.fPalBlue.setColor(QPalette.Active,   QPalette.ToolTipBase, QColor(182, 193, 208))

  262.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.ToolTipBase, QColor(182, 193, 208))

  263.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.ToolTipText, QColor(42, 44, 48))

  264.         self.fPalBlue.setColor(QPalette.Active,   QPalette.ToolTipText, QColor(42, 44, 48))

  265.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.ToolTipText, QColor(42, 44, 48))

  266.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Text, QColor(96, 103, 113))

  267.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Text, QColor(210, 222, 240))

  268.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Text, QColor(210, 222, 240))

  269.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Button, QColor(51, 55, 62))

  270.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Button, QColor(59, 63, 71))

  271.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Button, QColor(59, 63, 71))

  272.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.ButtonText, QColor(98, 104, 114))

  273.         self.fPalBlue.setColor(QPalette.Active,   QPalette.ButtonText, QColor(210, 222, 240))

  274.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.ButtonText, QColor(210, 222, 240))

  275.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.BrightText, QColor(255, 255, 255))

  276.         self.fPalBlue.setColor(QPalette.Active,   QPalette.BrightText, QColor(255, 255, 255))

  277.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.BrightText, QColor(255, 255, 255))

  278.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Light, QColor(59, 64, 72))

  279.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Light, QColor(63, 68, 76))

  280.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Light, QColor(63, 68, 76))

  281.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Midlight, QColor(48, 52, 59))

  282.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Midlight, QColor(51, 56, 63))

  283.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Midlight, QColor(51, 56, 63))

  284.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Dark, QColor(18, 19, 22))

  285.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Dark, QColor(20, 22, 25))

  286.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Dark, QColor(20, 22, 25))

  287.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Mid, QColor(28, 30, 34))

  288.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Mid, QColor(32, 35, 39))

  289.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Mid, QColor(32, 35, 39))

  290.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Shadow, QColor(13, 14, 16))

  291.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Shadow, QColor(15, 16, 18))

  292.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Shadow, QColor(15, 16, 18))

  293.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Highlight, QColor(32, 35, 39))

  294.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Highlight, QColor(14, 14, 17))

  295.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Highlight, QColor(27, 28, 33))

  296.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.HighlightedText, QColor(89, 95, 104))

  297.         self.fPalBlue.setColor(QPalette.Active,   QPalette.HighlightedText, QColor(217, 234, 253))

  298.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.HighlightedText, QColor(223, 237, 255))

  299.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.Link, QColor(79, 100, 118))

  300.         self.fPalBlue.setColor(QPalette.Active,   QPalette.Link, QColor(156, 212, 255))

  301.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.Link, QColor(156, 212, 255))

  302.         self.fPalBlue.setColor(QPalette.Disabled, QPalette.LinkVisited, QColor(51, 74, 118))

  303.         self.fPalBlue.setColor(QPalette.Active,   QPalette.LinkVisited, QColor(64, 128, 255))

  304.         self.fPalBlue.setColor(QPalette.Inactive, QPalette.LinkVisited, QColor(64, 128, 255))

  305.         self.fApp.setPalette(self.fPalBlue)

  306. 

  307.     def exec_(self):

  308.         return self.fApp.exec_()

  309. 

  310.     def exit_exec(self):

  311.         return sys.exit(self.fApp.exec_())

  312. 

  313.     def getApp(self):

  314.         return self.fApp

  315. 

  316.     def quit(self):

  317.         self.fApp.quit()

  318. 

  319. # ------------------------------------------------------------------------------------------------------------

  320. # pylint: enable=possibly-used-before-assignment