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Carla
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Carla/source/frontend/carla_shared.py

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  1. #!/usr/bin/env python3

  2. # SPDX-FileCopyrightText: 2011-2024 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. from math import fmod

  12. 

  13. # ------------------------------------------------------------------------------------------------------------

  14. # Imports (Signal)

  15. 

  16. from signal import signal, SIGINT, SIGTERM

  17. 

  18. try:

  19.     from signal import SIGUSR1

  20.     haveSIGUSR1 = True

  21. except:

  22.     haveSIGUSR1 = False

  23. 

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

  25. # Imports (PyQt)

  26. 

  27. from qt_compat import qt_config

  28. 

  29. if qt_config == 5:

  30.     # import changed in PyQt 5.15.8, so try both

  31.     try:

  32.         from PyQt5.Qt import PYQT_VERSION_STR

  33.     except ImportError:

  34.         from PyQt5.QtCore import PYQT_VERSION_STR

  35. 

  36.     from PyQt5.QtCore import qFatal, QT_VERSION, QT_VERSION_STR, qWarning, QDir, QSettings

  37.     from PyQt5.QtGui import QIcon

  38.     from PyQt5.QtWidgets import QFileDialog, QMessageBox

  39. 

  40. elif qt_config == 6:

  41.     from PyQt6.QtCore import qFatal, PYQT_VERSION_STR, QT_VERSION, QT_VERSION_STR, qWarning, QDir, QSettings

  42.     from PyQt6.QtGui import QIcon

  43.     from PyQt6.QtWidgets import QFileDialog, QMessageBox

  44. 

  45. # ------------------------------------------------------------------------------------------------------------

  46. # Imports (Custom)

  47. 

  48. from carla_backend import (

  49.     MAX_DEFAULT_PARAMETERS,

  50.     ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS,

  51.     ENGINE_PROCESS_MODE_PATCHBAY,

  52.     ENGINE_TRANSPORT_MODE_INTERNAL,

  53.     ENGINE_TRANSPORT_MODE_JACK

  54. )

  55. 

  56. from common import kIs64bit, HAIKU, LINUX, MACOS, WINDOWS, VERSION

  57. 

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

  59. # Config

  60. 

  61. # These will be modified during install

  62. X_LIBDIR_X = None

  63. X_DATADIR_X = None

  64. 

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

  66. # Platform specific stuff

  67. 

  68. if WINDOWS:

  69.     WINDIR = os.getenv("WINDIR")

  70. 

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

  72. # Set TMP

  73. 

  74. envTMP = os.getenv("TMP")

  75. 

  76. if envTMP is None:

  77.     if WINDOWS:

  78.         qWarning("TMP variable not set")

  79.     TMP = QDir.tempPath()

  80. else:

  81.     TMP = envTMP

  82. 

  83. if not os.path.exists(TMP):

  84.     qWarning("TMP does not exist")

  85.     TMP = "/"

  86. 

  87. del envTMP

  88. 

  89. # ------------------------------------------------------------------------------------------------------------

  90. # Set HOME

  91. 

  92. envHOME = os.getenv("HOME")

  93. 

  94. if envHOME is None:

  95.     if not WINDOWS:

  96.         qWarning("HOME variable not set")

  97.     HOME = QDir.toNativeSeparators(QDir.homePath())

  98. else:

  99.     HOME = envHOME

  100. 

  101. if not os.path.exists(HOME):

  102.     qWarning("HOME does not exist")

  103.     HOME = TMP

  104. 

  105. del envHOME

  106. 

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

  108. # Set PATH

  109. 

  110. envPATH = os.getenv("PATH")

  111. 

  112. if envPATH is None:

  113.     qWarning("PATH variable not set")

  114.     if MACOS:

  115.         PATH = ("/opt/local/bin", "/usr/local/bin", "/usr/bin", "/bin")

  116.     elif WINDOWS:

  117.         PATH = (os.path.join(WINDIR, "system32"), WINDIR)

  118.     else:

  119.         PATH = ("/usr/local/bin", "/usr/bin", "/bin")

  120. else:

  121.     PATH = envPATH.split(os.pathsep)

  122. 

  123. del envPATH

  124. 

  125. # ------------------------------------------------------------------------------------------------------------

  126. # Static MIDI CC list

  127. 

  128. MIDI_CC_LIST = (

  129.     "01 [0x01] Modulation",

  130.     "02 [0x02] Breath",

  131.     "04 [0x04] Foot",

  132.     "05 [0x05] Portamento",

  133.     "07 [0x07] Volume",

  134.     "08 [0x08] Balance",

  135.     "10 [0x0A] Pan",

  136.     "11 [0x0B] Expression",

  137.     "12 [0x0C] FX Control 1",

  138.     "13 [0x0D] FX Control 2",

  139.     "16 [0x10] General Purpose 1",

  140.     "17 [0x11] General Purpose 2",

  141.     "18 [0x12] General Purpose 3",

  142.     "19 [0x13] General Purpose 4",

  143.     "70 [0x46] Control 1 [Variation]",

  144.     "71 [0x47] Control 2 [Timbre]",

  145.     "72 [0x48] Control 3 [Release]",

  146.     "73 [0x49] Control 4 [Attack]",

  147.     "74 [0x4A] Control 5 [Brightness]",

  148.     "75 [0x4B] Control 6 [Decay]",

  149.     "76 [0x4C] Control 7 [Vib Rate]",

  150.     "77 [0x4D] Control 8 [Vib Depth]",

  151.     "78 [0x4E] Control 9 [Vib Delay]",

  152.     "79 [0x4F] Control 10 [Undefined]",

  153.     "80 [0x50] General Purpose 5",

  154.     "81 [0x51] General Purpose 6",

  155.     "82 [0x52] General Purpose 7",

  156.     "83 [0x53] General Purpose 8",

  157.     "84 [0x54] Portamento Control",

  158.     "91 [0x5B] FX 1 Depth [Reverb]",

  159.     "92 [0x5C] FX 2 Depth [Tremolo]",

  160.     "93 [0x5D] FX 3 Depth [Chorus]",

  161.     "94 [0x5E] FX 4 Depth [Detune]",

  162.     "95 [0x5F] FX 5 Depth [Phaser]"

  163. )

  164. 

  165. MAX_MIDI_CC_LIST_ITEM = 95

  166. 

  167. # ------------------------------------------------------------------------------------------------------------

  168. # PatchCanvas defines

  169. 

  170. CANVAS_ANTIALIASING_SMALL = 1

  171. CANVAS_EYECANDY_SMALL     = 1

  172. 

  173. # ------------------------------------------------------------------------------------------------------------

  174. # Carla Settings keys

  175. 

  176. CARLA_KEY_MAIN_PROJECT_FOLDER   = "Main/ProjectFolder"   # str

  177. CARLA_KEY_MAIN_USE_PRO_THEME    = "Main/UseProTheme"     # bool

  178. CARLA_KEY_MAIN_PRO_THEME_COLOR  = "Main/ProThemeColor"   # str

  179. CARLA_KEY_MAIN_REFRESH_INTERVAL = "Main/RefreshInterval" # int

  180. CARLA_KEY_MAIN_CONFIRM_EXIT     = "Main/ConfirmExit"     # bool

  181. CARLA_KEY_MAIN_CLASSIC_SKIN     = "Main/ClassicSkin"     # bool

  182. CARLA_KEY_MAIN_SHOW_LOGS        = "Main/ShowLogs"        # bool

  183. CARLA_KEY_MAIN_SYSTEM_ICONS     = "Main/SystemIcons"     # bool

  184. CARLA_KEY_MAIN_EXPERIMENTAL     = "Main/Experimental"    # bool

  185. 

  186. CARLA_KEY_CANVAS_THEME             = "Canvas/Theme"           # str

  187. CARLA_KEY_CANVAS_SIZE              = "Canvas/Size"            # str "NxN"

  188. CARLA_KEY_CANVAS_USE_BEZIER_LINES  = "Canvas/UseBezierLines"  # bool

  189. CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS  = "Canvas/AutoHideGroups"  # bool

  190. CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS = "Canvas/AutoSelectItems" # bool

  191. CARLA_KEY_CANVAS_EYE_CANDY         = "Canvas/EyeCandy2"       # bool

  192. CARLA_KEY_CANVAS_FANCY_EYE_CANDY   = "Canvas/FancyEyeCandy"   # bool

  193. CARLA_KEY_CANVAS_USE_OPENGL        = "Canvas/UseOpenGL"       # bool

  194. CARLA_KEY_CANVAS_ANTIALIASING      = "Canvas/Antialiasing"    # enum

  195. CARLA_KEY_CANVAS_HQ_ANTIALIASING   = "Canvas/HQAntialiasing"  # bool

  196. CARLA_KEY_CANVAS_INLINE_DISPLAYS   = "Canvas/InlineDisplays"  # bool

  197. CARLA_KEY_CANVAS_FULL_REPAINTS     = "Canvas/FullRepaints"    # bool

  198. 

  199. CARLA_KEY_ENGINE_DRIVER_PREFIX         = "Engine/Driver-"

  200. CARLA_KEY_ENGINE_AUDIO_DRIVER          = "Engine/AudioDriver"         # str

  201. CARLA_KEY_ENGINE_AUDIO_DEVICE          = "Engine/AudioDevice"         # str

  202. CARLA_KEY_ENGINE_BUFFER_SIZE           = "Engine/BufferSize"          # int

  203. CARLA_KEY_ENGINE_SAMPLE_RATE           = "Engine/SampleRate"          # int

  204. CARLA_KEY_ENGINE_TRIPLE_BUFFER         = "Engine/TripleBuffer"        # bool

  205. CARLA_KEY_ENGINE_PROCESS_MODE          = "Engine/ProcessMode"         # enum

  206. CARLA_KEY_ENGINE_TRANSPORT_MODE        = "Engine/TransportMode"       # enum

  207. CARLA_KEY_ENGINE_TRANSPORT_EXTRA       = "Engine/TransportExtra"      # str

  208. CARLA_KEY_ENGINE_FORCE_STEREO          = "Engine/ForceStereo"         # bool

  209. CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES = "Engine/PreferPluginBridges" # bool

  210. CARLA_KEY_ENGINE_PREFER_UI_BRIDGES     = "Engine/PreferUiBridges"     # bool

  211. CARLA_KEY_ENGINE_MANAGE_UIS            = "Engine/ManageUIs"           # bool

  212. CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP     = "Engine/UIsAlwaysOnTop"      # bool

  213. CARLA_KEY_ENGINE_MAX_PARAMETERS        = "Engine/MaxParameters"       # int

  214. CARLA_KEY_ENGINE_RESET_XRUNS           = "Engine/ResetXruns"          # bool

  215. CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT    = "Engine/UiBridgesTimeout"    # int

  216. 

  217. CARLA_KEY_OSC_ENABLED          = "OSC/Enabled"

  218. CARLA_KEY_OSC_TCP_PORT_ENABLED = "OSC/TCPEnabled"

  219. CARLA_KEY_OSC_TCP_PORT_NUMBER  = "OSC/TCPNumber"

  220. CARLA_KEY_OSC_TCP_PORT_RANDOM  = "OSC/TCPRandom"

  221. CARLA_KEY_OSC_UDP_PORT_ENABLED = "OSC/UDPEnabled"

  222. CARLA_KEY_OSC_UDP_PORT_NUMBER  = "OSC/UDPNumber"

  223. CARLA_KEY_OSC_UDP_PORT_RANDOM  = "OSC/UDPRandom"

  224. 

  225. CARLA_KEY_PATHS_AUDIO = "Paths/Audio"

  226. CARLA_KEY_PATHS_MIDI  = "Paths/MIDI"

  227. 

  228. CARLA_KEY_PATHS_LADSPA = "Paths/LADSPA"

  229. CARLA_KEY_PATHS_DSSI   = "Paths/DSSI"

  230. CARLA_KEY_PATHS_LV2    = "Paths/LV2"

  231. CARLA_KEY_PATHS_VST2   = "Paths/VST2"

  232. CARLA_KEY_PATHS_VST3   = "Paths/VST3"

  233. CARLA_KEY_PATHS_CLAP   = "Paths/CLAP"

  234. CARLA_KEY_PATHS_SF2    = "Paths/SF2"

  235. CARLA_KEY_PATHS_SFZ    = "Paths/SFZ"

  236. CARLA_KEY_PATHS_JSFX   = "Paths/JSFX"

  237. 

  238. CARLA_KEY_WINE_EXECUTABLE      = "Wine/Executable"     # str

  239. CARLA_KEY_WINE_AUTO_PREFIX     = "Wine/AutoPrefix"     # bool

  240. CARLA_KEY_WINE_FALLBACK_PREFIX = "Wine/FallbackPrefix" # str

  241. CARLA_KEY_WINE_RT_PRIO_ENABLED = "Wine/RtPrioEnabled"  # bool

  242. CARLA_KEY_WINE_BASE_RT_PRIO    = "Wine/BaseRtPrio"     # int

  243. CARLA_KEY_WINE_SERVER_RT_PRIO  = "Wine/ServerRtPrio"   # int

  244. 

  245. CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES        = "Experimental/PluginBridges"       # bool

  246. CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES          = "Experimental/WineBridges"         # bool

  247. CARLA_KEY_EXPERIMENTAL_JACK_APPS             = "Experimental/JackApplications"    # bool

  248. CARLA_KEY_EXPERIMENTAL_EXPORT_LV2            = "Experimental/ExportLV2"           # bool

  249. CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = "Experimental/PreventBadBehaviour" # bool

  250. CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL       = "Experimental/LoadLibGlobal"       # bool

  251. 

  252. # if pro theme is on and color is black

  253. CARLA_KEY_CUSTOM_PAINTING = "UseCustomPainting" # bool

  254. 

  255. # ------------------------------------------------------------------------------------------------------------

  256. # Carla Settings defaults

  257. 

  258. # Main

  259. CARLA_DEFAULT_MAIN_PROJECT_FOLDER   = HOME

  260. CARLA_DEFAULT_MAIN_USE_PRO_THEME    = True

  261. CARLA_DEFAULT_MAIN_PRO_THEME_COLOR  = "Black"

  262. CARLA_DEFAULT_MAIN_REFRESH_INTERVAL = 20

  263. CARLA_DEFAULT_MAIN_CONFIRM_EXIT     = True

  264. CARLA_DEFAULT_MAIN_CLASSIC_SKIN     = False

  265. CARLA_DEFAULT_MAIN_SHOW_LOGS        = bool(not WINDOWS)

  266. CARLA_DEFAULT_MAIN_SYSTEM_ICONS     = False

  267. CARLA_DEFAULT_MAIN_EXPERIMENTAL     = False

  268. 

  269. # Canvas

  270. CARLA_DEFAULT_CANVAS_THEME             = "Modern Dark"

  271. CARLA_DEFAULT_CANVAS_SIZE              = "3100x2400"

  272. CARLA_DEFAULT_CANVAS_SIZE_WIDTH        = 3100

  273. CARLA_DEFAULT_CANVAS_SIZE_HEIGHT       = 2400

  274. CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES  = True

  275. CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS  = True

  276. CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS = False

  277. CARLA_DEFAULT_CANVAS_EYE_CANDY         = True

  278. CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY   = False

  279. CARLA_DEFAULT_CANVAS_USE_OPENGL        = False

  280. CARLA_DEFAULT_CANVAS_ANTIALIASING      = CANVAS_ANTIALIASING_SMALL

  281. CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING   = False

  282. CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS   = False

  283. CARLA_DEFAULT_CANVAS_FULL_REPAINTS     = False

  284. 

  285. # Engine

  286. CARLA_DEFAULT_FORCE_STEREO          = False

  287. CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES = False

  288. CARLA_DEFAULT_PREFER_UI_BRIDGES     = True

  289. CARLA_DEFAULT_MANAGE_UIS            = True

  290. CARLA_DEFAULT_UIS_ALWAYS_ON_TOP     = False

  291. CARLA_DEFAULT_MAX_PARAMETERS        = MAX_DEFAULT_PARAMETERS

  292. CARLA_DEFAULT_RESET_XRUNS           = False

  293. CARLA_DEFAULT_UI_BRIDGES_TIMEOUT    = 4000

  294. 

  295. CARLA_DEFAULT_AUDIO_BUFFER_SIZE     = 512

  296. CARLA_DEFAULT_AUDIO_SAMPLE_RATE     = 44100

  297. CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER   = False

  298. 

  299. if HAIKU:

  300.     CARLA_DEFAULT_AUDIO_DRIVER = "SDL"

  301. elif MACOS:

  302.     CARLA_DEFAULT_AUDIO_DRIVER = "CoreAudio"

  303. elif WINDOWS:

  304.     CARLA_DEFAULT_AUDIO_DRIVER = "Windows Audio"

  305. elif os.path.exists("/usr/bin/jackd") or os.path.exists("/usr/bin/jackdbus") or os.path.exists("/usr/bin/pw-jack"):

  306.     CARLA_DEFAULT_AUDIO_DRIVER = "JACK"

  307. else:

  308.     CARLA_DEFAULT_AUDIO_DRIVER = "PulseAudio"

  309. 

  310. if CARLA_DEFAULT_AUDIO_DRIVER == "JACK":

  311.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS

  312.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_JACK

  313. else:

  314.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_PATCHBAY

  315.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_INTERNAL

  316. 

  317. # OSC

  318. CARLA_DEFAULT_OSC_ENABLED = not (MACOS or WINDOWS)

  319. CARLA_DEFAULT_OSC_TCP_PORT_ENABLED = True

  320. CARLA_DEFAULT_OSC_TCP_PORT_NUMBER  = 22752

  321. CARLA_DEFAULT_OSC_TCP_PORT_RANDOM  = False

  322. CARLA_DEFAULT_OSC_UDP_PORT_ENABLED = True

  323. CARLA_DEFAULT_OSC_UDP_PORT_NUMBER  = 22752

  324. CARLA_DEFAULT_OSC_UDP_PORT_RANDOM  = False

  325. 

  326. # Wine

  327. CARLA_DEFAULT_WINE_EXECUTABLE      = "wine"

  328. CARLA_DEFAULT_WINE_AUTO_PREFIX     = True

  329. CARLA_DEFAULT_WINE_FALLBACK_PREFIX = os.path.expanduser("~/.wine")

  330. CARLA_DEFAULT_WINE_RT_PRIO_ENABLED = True

  331. CARLA_DEFAULT_WINE_BASE_RT_PRIO    = 15

  332. CARLA_DEFAULT_WINE_SERVER_RT_PRIO  = 10

  333. 

  334. # Experimental

  335. CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES        = False

  336. CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES          = False

  337. CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS             = False

  338. CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT            = False

  339. CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = False

  340. CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL       = False

  341. 

  342. # ------------------------------------------------------------------------------------------------------------

  343. # Default File Folders

  344. 

  345. CARLA_DEFAULT_FILE_PATH_AUDIO = []

  346. CARLA_DEFAULT_FILE_PATH_MIDI  = []

  347. 

  348. # ------------------------------------------------------------------------------------------------------------

  349. # Default Plugin Folders (get)

  350. 

  351. DEFAULT_LADSPA_PATH = ""

  352. DEFAULT_DSSI_PATH   = ""

  353. DEFAULT_LV2_PATH    = ""

  354. DEFAULT_VST2_PATH   = ""

  355. DEFAULT_VST3_PATH   = ""

  356. DEFAULT_CLAP_PATH   = ""

  357. DEFAULT_SF2_PATH    = ""

  358. DEFAULT_SFZ_PATH    = ""

  359. DEFAULT_JSFX_PATH   = ""

  360. 

  361. if WINDOWS:

  362.     splitter = ";"

  363. 

  364.     APPDATA = os.getenv("APPDATA")

  365.     LOCALAPPDATA = os.getenv("LOCALAPPDATA", APPDATA)

  366.     PROGRAMFILES = os.getenv("PROGRAMFILES")

  367.     PROGRAMFILESx86 = os.getenv("PROGRAMFILES(x86)")

  368.     COMMONPROGRAMFILES = os.getenv("COMMONPROGRAMFILES")

  369.     COMMONPROGRAMFILESx86 = os.getenv("COMMONPROGRAMFILES(x86)")

  370. 

  371.     # Small integrity tests

  372.     if not APPDATA:

  373.         qFatal("APPDATA variable not set, cannot continue")

  374.         sys.exit(1)

  375. 

  376.     if not PROGRAMFILES:

  377.         qFatal("PROGRAMFILES variable not set, cannot continue")

  378.         sys.exit(1)

  379. 

  380.     if not COMMONPROGRAMFILES:

  381.         qFatal("COMMONPROGRAMFILES variable not set, cannot continue")

  382.         sys.exit(1)

  383. 

  384.     DEFAULT_LADSPA_PATH  = APPDATA + "\\LADSPA"

  385.     DEFAULT_LADSPA_PATH += ";" + PROGRAMFILES + "\\LADSPA"

  386. 

  387.     DEFAULT_DSSI_PATH    = APPDATA + "\\DSSI"

  388.     DEFAULT_DSSI_PATH   += ";" + PROGRAMFILES + "\\DSSI"

  389. 

  390.     DEFAULT_LV2_PATH     = APPDATA + "\\LV2"

  391.     DEFAULT_LV2_PATH    += ";" + COMMONPROGRAMFILES + "\\LV2"

  392. 

  393.     DEFAULT_VST2_PATH    = PROGRAMFILES + "\\VstPlugins"

  394.     DEFAULT_VST2_PATH   += ";" + PROGRAMFILES + "\\Steinberg\\VstPlugins"

  395. 

  396.     DEFAULT_JSFX_PATH    = APPDATA + "\\REAPER\\Effects"

  397.     #DEFAULT_JSFX_PATH   += ";" + PROGRAMFILES + "\\REAPER\\InstallData\\Effects"

  398. 

  399.     if kIs64bit:

  400.         DEFAULT_VST2_PATH  += ";" + COMMONPROGRAMFILES + "\\VST2"

  401. 

  402.     DEFAULT_VST3_PATH    = COMMONPROGRAMFILES + "\\VST3"

  403.     DEFAULT_VST3_PATH   += ";" + LOCALAPPDATA + "\\Programs\\Common\\VST3"

  404. 

  405.     DEFAULT_CLAP_PATH    = COMMONPROGRAMFILES + "\\CLAP"

  406.     DEFAULT_CLAP_PATH   += ";" + LOCALAPPDATA + "\\Programs\\Common\\CLAP"

  407. 

  408.     DEFAULT_SF2_PATH     = APPDATA + "\\SF2"

  409.     DEFAULT_SFZ_PATH     = APPDATA + "\\SFZ"

  410. 

  411.     if PROGRAMFILESx86:

  412.         DEFAULT_LADSPA_PATH += ";" + PROGRAMFILESx86 + "\\LADSPA"

  413.         DEFAULT_DSSI_PATH   += ";" + PROGRAMFILESx86 + "\\DSSI"

  414.         DEFAULT_VST2_PATH   += ";" + PROGRAMFILESx86 + "\\VstPlugins"

  415.         DEFAULT_VST2_PATH   += ";" + PROGRAMFILESx86 + "\\Steinberg\\VstPlugins"

  416.         #DEFAULT_JSFX_PATH   += ";" + PROGRAMFILESx86 + "\\REAPER\\InstallData\\Effects"

  417. 

  418.     if COMMONPROGRAMFILESx86:

  419.         DEFAULT_VST3_PATH   += COMMONPROGRAMFILESx86 + "\\VST3"

  420.         DEFAULT_CLAP_PATH   += COMMONPROGRAMFILESx86 + "\\CLAP"

  421. 

  422. elif HAIKU:

  423.     splitter = ":"

  424. 

  425.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

  426.     DEFAULT_LADSPA_PATH += ":/system/add-ons/media/ladspaplugins"

  427.     DEFAULT_LADSPA_PATH += ":/system/lib/ladspa"

  428. 

  429.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

  430.     DEFAULT_DSSI_PATH   += ":/system/add-ons/media/dssiplugins"

  431.     DEFAULT_DSSI_PATH   += ":/system/lib/dssi"

  432. 

  433.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

  434.     DEFAULT_LV2_PATH    += ":/system/add-ons/media/lv2plugins"

  435. 

  436.     DEFAULT_VST2_PATH    = HOME + "/.vst"

  437.     DEFAULT_VST2_PATH   += ":/system/add-ons/media/vstplugins"

  438. 

  439.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

  440.     DEFAULT_VST3_PATH   += ":/system/add-ons/media/vst3plugins"

  441. 

  442.     DEFAULT_CLAP_PATH    = HOME + "/.clap"

  443.     DEFAULT_CLAP_PATH   += ":/system/add-ons/media/clapplugins"

  444. 

  445. elif MACOS:

  446.     splitter = ":"

  447. 

  448.     DEFAULT_LADSPA_PATH  = HOME + "/Library/Audio/Plug-Ins/LADSPA"

  449.     DEFAULT_LADSPA_PATH += ":/Library/Audio/Plug-Ins/LADSPA"

  450. 

  451.     DEFAULT_DSSI_PATH    = HOME + "/Library/Audio/Plug-Ins/DSSI"

  452.     DEFAULT_DSSI_PATH   += ":/Library/Audio/Plug-Ins/DSSI"

  453. 

  454.     DEFAULT_LV2_PATH     = HOME + "/Library/Audio/Plug-Ins/LV2"

  455.     DEFAULT_LV2_PATH    += ":/Library/Audio/Plug-Ins/LV2"

  456. 

  457.     DEFAULT_VST2_PATH    = HOME + "/Library/Audio/Plug-Ins/VST"

  458.     DEFAULT_VST2_PATH   += ":/Library/Audio/Plug-Ins/VST"

  459. 

  460.     DEFAULT_VST3_PATH    = HOME + "/Library/Audio/Plug-Ins/VST3"

  461.     DEFAULT_VST3_PATH   += ":/Library/Audio/Plug-Ins/VST3"

  462. 

  463.     DEFAULT_CLAP_PATH    = HOME + "/Library/Audio/Plug-Ins/CLAP"

  464.     DEFAULT_CLAP_PATH   += ":/Library/Audio/Plug-Ins/CLAP"

  465. 

  466.     DEFAULT_JSFX_PATH    = HOME + "/Library/Application Support/REAPER/Effects"

  467.     #DEFAULT_JSFX_PATH   += ":/Applications/REAPER.app/Contents/InstallFiles/Effects"

  468. 

  469. else:

  470.     splitter = ":"

  471. 

  472.     CONFIG_HOME = os.getenv("XDG_CONFIG_HOME", HOME + "/.config")

  473. 

  474.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

  475.     DEFAULT_LADSPA_PATH += ":/usr/lib/ladspa"

  476.     DEFAULT_LADSPA_PATH += ":/usr/local/lib/ladspa"

  477. 

  478.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

  479.     DEFAULT_DSSI_PATH   += ":/usr/lib/dssi"

  480.     DEFAULT_DSSI_PATH   += ":/usr/local/lib/dssi"

  481. 

  482.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

  483.     DEFAULT_LV2_PATH    += ":/usr/lib/lv2"

  484.     DEFAULT_LV2_PATH    += ":/usr/local/lib/lv2"

  485. 

  486.     DEFAULT_VST2_PATH    = HOME + "/.vst"

  487.     DEFAULT_VST2_PATH   += ":/usr/lib/vst"

  488.     DEFAULT_VST2_PATH   += ":/usr/local/lib/vst"

  489. 

  490.     DEFAULT_VST2_PATH   += HOME + "/.lxvst"

  491.     DEFAULT_VST2_PATH   += ":/usr/lib/lxvst"

  492.     DEFAULT_VST2_PATH   += ":/usr/local/lib/lxvst"

  493. 

  494.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

  495.     DEFAULT_VST3_PATH   += ":/usr/lib/vst3"

  496.     DEFAULT_VST3_PATH   += ":/usr/local/lib/vst3"

  497. 

  498.     DEFAULT_CLAP_PATH    = HOME + "/.clap"

  499.     DEFAULT_CLAP_PATH   += ":/usr/lib/clap"

  500.     DEFAULT_CLAP_PATH   += ":/usr/local/lib/clap"

  501. 

  502.     DEFAULT_SF2_PATH     = HOME + "/.sounds/sf2"

  503.     DEFAULT_SF2_PATH    += ":" + HOME + "/.sounds/sf3"

  504.     DEFAULT_SF2_PATH    += ":/usr/share/sounds/sf2"

  505.     DEFAULT_SF2_PATH    += ":/usr/share/sounds/sf3"

  506.     DEFAULT_SF2_PATH    += ":/usr/share/soundfonts"

  507. 

  508.     DEFAULT_SFZ_PATH     = HOME + "/.sounds/sfz"

  509.     DEFAULT_SFZ_PATH    += ":/usr/share/sounds/sfz"

  510. 

  511.     DEFAULT_JSFX_PATH    = CONFIG_HOME + "/REAPER/Effects"

  512.     #DEFAULT_JSFX_PATH   += ":" + "/opt/REAPER/InstallData/Effects"

  513. 

  514. if not WINDOWS:

  515.     winePrefix = os.getenv("WINEPREFIX")

  516. 

  517.     if not winePrefix:

  518.         winePrefix = HOME + "/.wine"

  519. 

  520.     if os.path.exists(winePrefix):

  521.         DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files/VstPlugins"

  522.         DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files/VSTPlugins"

  523.         DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files/Steinberg/VstPlugins"

  524.         DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files/Steinberg/VSTPlugins"

  525.         DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files/Common Files/VST2"

  526.         DEFAULT_VST3_PATH += ":" + winePrefix + "/drive_c/Program Files/Common Files/VST3"

  527.         DEFAULT_CLAP_PATH += ":" + winePrefix + "/drive_c/Program Files/Common Files/CLAP"

  528. 

  529.         if kIs64bit and os.path.exists(winePrefix + "/drive_c/Program Files (x86)"):

  530.             DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/VstPlugins"

  531.             DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/VSTPlugins"

  532.             DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/Steinberg/VstPlugins"

  533.             DEFAULT_VST2_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/Steinberg/VSTPlugins"

  534.             DEFAULT_VST3_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/Common Files/VST3"

  535.             DEFAULT_CLAP_PATH += ":" + winePrefix + "/drive_c/Program Files (x86)/Common Files/CLAP"

  536. 

  537.     del winePrefix

  538. 

  539. # ------------------------------------------------------------------------------------------------------------

  540. # Default Plugin Folders (set)

  541. 

  542. readEnvVars = True

  543. 

  544. if WINDOWS:

  545.     # Check if running Wine. If yes, ignore env vars

  546.     # pylint: disable=import-error

  547.     from winreg import ConnectRegistry, OpenKey, CloseKey, HKEY_CURRENT_USER

  548.     # pylint: enable=import-error

  549.     _reg = ConnectRegistry(None, HKEY_CURRENT_USER)

  550. 

  551.     try:

  552.         _key = OpenKey(_reg, r"SOFTWARE\Wine")

  553.         CloseKey(_key)

  554.         del _key

  555.         readEnvVars = False

  556.     except:

  557.         pass

  558. 

  559.     CloseKey(_reg)

  560.     del _reg

  561. 

  562. if readEnvVars:

  563.     CARLA_DEFAULT_LADSPA_PATH = os.getenv("LADSPA_PATH", DEFAULT_LADSPA_PATH).split(splitter)

  564.     CARLA_DEFAULT_DSSI_PATH   = os.getenv("DSSI_PATH",   DEFAULT_DSSI_PATH).split(splitter)

  565.     CARLA_DEFAULT_LV2_PATH    = os.getenv("LV2_PATH",    DEFAULT_LV2_PATH).split(splitter)

  566.     CARLA_DEFAULT_VST2_PATH   = os.getenv("VST_PATH",    DEFAULT_VST2_PATH).split(splitter)

  567.     CARLA_DEFAULT_VST3_PATH   = os.getenv("VST3_PATH",   DEFAULT_VST3_PATH).split(splitter)

  568.     CARLA_DEFAULT_CLAP_PATH   = os.getenv("CLAP_PATH",   DEFAULT_CLAP_PATH).split(splitter)

  569.     CARLA_DEFAULT_SF2_PATH    = os.getenv("SF2_PATH",    DEFAULT_SF2_PATH).split(splitter)

  570.     CARLA_DEFAULT_SFZ_PATH    = os.getenv("SFZ_PATH",    DEFAULT_SFZ_PATH).split(splitter)

  571.     CARLA_DEFAULT_JSFX_PATH   = os.getenv("JSFX_PATH",   DEFAULT_JSFX_PATH).split(splitter)

  572. 

  573. else:

  574.     CARLA_DEFAULT_LADSPA_PATH = DEFAULT_LADSPA_PATH.split(splitter)

  575.     CARLA_DEFAULT_DSSI_PATH   = DEFAULT_DSSI_PATH.split(splitter)

  576.     CARLA_DEFAULT_LV2_PATH    = DEFAULT_LV2_PATH.split(splitter)

  577.     CARLA_DEFAULT_VST2_PATH   = DEFAULT_VST2_PATH.split(splitter)

  578.     CARLA_DEFAULT_VST3_PATH   = DEFAULT_VST3_PATH.split(splitter)

  579.     CARLA_DEFAULT_CLAP_PATH   = DEFAULT_CLAP_PATH.split(splitter)

  580.     CARLA_DEFAULT_SF2_PATH    = DEFAULT_SF2_PATH.split(splitter)

  581.     CARLA_DEFAULT_SFZ_PATH    = DEFAULT_SFZ_PATH.split(splitter)

  582.     CARLA_DEFAULT_JSFX_PATH   = DEFAULT_JSFX_PATH.split(splitter)

  583. 

  584. # ------------------------------------------------------------------------------------------------------------

  585. # Default Plugin Folders (cleanup)

  586. 

  587. del DEFAULT_LADSPA_PATH

  588. del DEFAULT_DSSI_PATH

  589. del DEFAULT_LV2_PATH

  590. del DEFAULT_VST2_PATH

  591. del DEFAULT_VST3_PATH

  592. del DEFAULT_CLAP_PATH

  593. del DEFAULT_SF2_PATH

  594. del DEFAULT_SFZ_PATH

  595. 

  596. # ------------------------------------------------------------------------------------------------------------

  597. # Global Carla object

  598. 

  599. class CarlaObject():

  600.     def __init__(self):

  601.         self.cnprefix = ""    # Client name prefix

  602.         self.gui      = None  # Host Window

  603.         self.nogui    = False # Skip UI

  604.         self.term     = False # Terminated by OS signal

  605.         self.felib    = None  # Frontend lib object

  606.         self.utils    = None  # Utils object

  607. 

  608. gCarla = CarlaObject()

  609. 

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

  611. # Set CWD

  612. 

  613. CWD = sys.path[0]

  614. 

  615. if not CWD:

  616.     CWD = os.path.dirname(sys.argv[0])

  617. 

  618. # make it work with cxfreeze

  619. if os.path.isfile(CWD):

  620.     CWD = os.path.dirname(CWD)

  621.     if CWD.endswith("/lib"):

  622.         CWD = CWD.rsplit("/lib",1)[0]

  623.     CXFREEZE = True

  624.     if not WINDOWS:

  625.         os.environ['CARLA_MAGIC_FILE'] = os.path.join(CWD, "magic.mgc")

  626. else:

  627.     CXFREEZE = False

  628. 

  629. # ------------------------------------------------------------------------------------------------------------

  630. # Set DLL_EXTENSION

  631. 

  632. if WINDOWS:

  633.     DLL_EXTENSION = "dll"

  634. elif MACOS:

  635.     DLL_EXTENSION = "dylib"

  636. else:

  637.     DLL_EXTENSION = "so"

  638. 

  639. # ------------------------------------------------------------------------------------------------------------

  640. # Find decimal points for a parameter, using step and stepSmall

  641. 

  642. def countDecimalPoints(step, stepSmall):

  643.     if stepSmall >= 1.0:

  644.         return 0

  645.     if step >= 1.0:

  646.         return 2

  647. 

  648.     count = 0

  649.     value = fmod(abs(step), 1)

  650.     while 0.0001 < value < 0.999 and count < 6:

  651.         value = fmod(value*10, 1)

  652.         count += 1

  653. 

  654.     return count

  655. 

  656. # ------------------------------------------------------------------------------------------------------------

  657. # Check if a value is a number (float support)

  658. 

  659. def isNumber(value):

  660.     try:

  661.         float(value)

  662.         return True

  663.     except:

  664.         return False

  665. 

  666. # ------------------------------------------------------------------------------------------------------------

  667. # Convert a value to a list

  668. 

  669. def toList(value):

  670.     if value is None:

  671.         return []

  672.     if not isinstance(value, list):

  673.         return [value]

  674.     return value

  675. 

  676. # ------------------------------------------------------------------------------------------------------------

  677. # Get Icon from user theme, using our own as backup (Oxygen)

  678. 

  679. def getIcon(icon, size, qrcformat):

  680.     return QIcon.fromTheme(icon, QIcon(":/%ix%i/%s.%s" % (size, size, icon, qrcformat)))

  681. 

  682. # ------------------------------------------------------------------------------------------------------------

  683. # Handle some basic command-line arguments shared between all carla variants

  684. 

  685. def handleInitialCommandLineArguments(file):

  686.     initName  = os.path.basename(file) if (file is not None and os.path.dirname(file) in PATH) else sys.argv[0]

  687.     libPrefix = None

  688.     readPrefixNext = False

  689. 

  690.     for arg in sys.argv[1:]:

  691.         if arg.startswith("--with-appname="):

  692.             initName = os.path.basename(arg.replace("--with-appname=", ""))

  693. 

  694.         elif arg.startswith("--with-libprefix="):

  695.             libPrefix = arg.replace("--with-libprefix=", "")

  696. 

  697.         elif arg.startswith("--osc-gui="):

  698.             gCarla.nogui = int(arg.replace("--osc-gui=", ""))

  699. 

  700.         elif arg.startswith("--cnprefix="):

  701.             gCarla.cnprefix = arg.replace("--cnprefix=", "")

  702. 

  703.         elif arg == "--cnprefix":

  704.             readPrefixNext = True

  705. 

  706.         elif arg == "--gdb":

  707.             pass

  708. 

  709.         elif arg in ("-n", "--n", "-no-gui", "--no-gui", "-nogui", "--nogui"):

  710.             gCarla.nogui = True

  711. 

  712.         elif MACOS and arg.startswith("-psn_"):

  713.             pass

  714. 

  715.         elif arg in ("-h", "--h", "-help", "--help"):

  716.             print("Usage: %s [OPTION]... [FILE|URL]" % initName)

  717.             print("")

  718.             print(" where FILE can be a Carla project or preset file to be loaded, or URL if using Carla-Control")

  719.             print("")

  720.             print(" and OPTION can be one or more of the following:")

  721.             print("")

  722.             print("    --cnprefix\t Set a prefix for client names in multi-client mode.")

  723.             if isinstance(gCarla.nogui, bool):

  724.                 if X_LIBDIR_X is not None:

  725.                     print("    --gdb     \t Run Carla inside gdb.")

  726.                 print(" -n,--no-gui  \t Run Carla headless, don't show UI.")

  727.                 print("")

  728.             print(" -h,--help    \t Print this help text and exit.")

  729.             print(" -v,--version \t Print version information and exit.")

  730.             print("")

  731. 

  732.             if not isinstance(gCarla.nogui, bool):

  733.                 print("NOTE: when using %s the FILE is only valid the first time the backend is started" % initName)

  734.                 sys.exit(1)

  735. 

  736.             sys.exit(0)

  737. 

  738.         elif arg in ("-v", "--v", "-version", "--version"):

  739.             pathBinaries, pathResources = getPaths(libPrefix)

  740. 

  741.             print("Using Carla version %s" % VERSION)

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

  743.             print("  Qt version:     %s" % QT_VERSION_STR)

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

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

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

  747. 

  748.             sys.exit(1 if gCarla.nogui else 0)

  749. 

  750.         elif readPrefixNext:

  751.             readPrefixNext = False

  752.             gCarla.cnprefix = arg

  753. 

  754.     if gCarla.nogui and not isinstance(gCarla.nogui, bool):

  755.         if os.fork():

  756.             # pylint: disable=protected-access

  757.             os._exit(0)

  758.             # pylint: enable=protected-access

  759.         else:

  760.             os.setsid()

  761. 

  762.     return (initName, libPrefix)

  763. 

  764. # ------------------------------------------------------------------------------------------------------------

  765. # Get initial project file (as passed in the command-line parameters)

  766. 

  767. def getInitialProjectFile(skipExistCheck = False):

  768.     # NOTE: PyQt mishandles unicode characters, we directly use sys.argv instead of qApp->arguments()

  769.     # see https://riverbankcomputing.com/pipermail/pyqt/2015-January/035395.html

  770.     args = sys.argv[1:]

  771.     readPrefixNext = False

  772.     for arg in args:

  773.         if readPrefixNext:

  774.             readPrefixNext = False

  775.             continue

  776.         if arg.startswith("--cnprefix="):

  777.             continue

  778.         if arg.startswith("--osc-gui="):

  779.             continue

  780.         if arg.startswith("--with-appname="):

  781.             continue

  782.         if arg.startswith("--with-libprefix="):

  783.             continue

  784.         if arg == "--cnprefix":

  785.             readPrefixNext = True

  786.             continue

  787.         if arg in ("-n", "--n", "-no-gui", "--no-gui", "-nogui", "--nogui", "--gdb"):

  788.             continue

  789.         if MACOS and arg.startswith("-psn_"):

  790.             continue

  791.         arg = os.path.expanduser(arg)

  792.         if skipExistCheck or os.path.exists(arg):

  793.             return arg

  794. 

  795.     return None

  796. 

  797. # ------------------------------------------------------------------------------------------------------------

  798. # Get paths (binaries, resources)

  799. 

  800. def getPaths(libPrefix = None):

  801.     CWDl = CWD.lower()

  802. 

  803.     # adjust for special distros

  804.     libdir  = os.path.basename(os.path.normpath(X_LIBDIR_X))  if X_LIBDIR_X  else "lib"

  805.     datadir = os.path.basename(os.path.normpath(X_DATADIR_X)) if X_DATADIR_X else "share"

  806. 

  807.     # standalone, installed system-wide linux

  808.     if libPrefix is not None:

  809.         pathBinaries  = os.path.join(libPrefix, libdir, "carla")

  810.         pathResources = os.path.join(libPrefix, datadir, "carla", "resources")

  811. 

  812.     # standalone, local source

  813.     elif CWDl.endswith("frontend"):

  814.         pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "bin"))

  815.         pathResources = os.path.join(pathBinaries, "resources")

  816. 

  817.     # plugin

  818.     elif CWDl.endswith("resources"):

  819.         # installed system-wide linux

  820.         if CWDl.endswith("/share/carla/resources"):

  821.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", libdir, "carla"))

  822.             pathResources = CWD

  823. 

  824.         # local source

  825.         elif CWDl.endswith("native-plugins%sresources" % os.sep):

  826.             pathBinaries  = os.path.abspath(os.path.join(CWD, "..", "..", "..", "bin"))

  827.             pathResources = CWD

  828. 

  829.         # other

  830.         else:

  831.             pathBinaries  = os.path.abspath(os.path.join(CWD, ".."))

  832.             pathResources = CWD

  833. 

  834.     # everything else

  835.     else:

  836.         pathBinaries  = CWD

  837.         pathResources = os.path.join(pathBinaries, "resources")

  838. 

  839.     return (pathBinaries, pathResources)

  840. 

  841. # ------------------------------------------------------------------------------------------------------------

  842. # Signal handler

  843. # TODO move to carla_host.py or something

  844. 

  845. def signalHandler(sig, frame):

  846.     if sig in (SIGINT, SIGTERM):

  847.         gCarla.term = True

  848.         if gCarla.gui is not None:

  849.             gCarla.gui.SIGTERM.emit()

  850. 

  851.     elif haveSIGUSR1 and sig == SIGUSR1:

  852.         if gCarla.gui is not None:

  853.             gCarla.gui.SIGUSR1.emit()

  854. 

  855. def setUpSignals():

  856.     signal(SIGINT,  signalHandler)

  857.     signal(SIGTERM, signalHandler)

  858. 

  859.     if not haveSIGUSR1:

  860.         return

  861. 

  862.     signal(SIGUSR1, signalHandler)

  863. 

  864. # ------------------------------------------------------------------------------------------------------------

  865. # QLineEdit and QPushButton combo

  866. 

  867. def getAndSetPath(parent, lineEdit):

  868.     newPath = QFileDialog.getExistingDirectory(parent, parent.tr("Set Path"), lineEdit.text(), QFileDialog.ShowDirsOnly)

  869.     if newPath:

  870.         lineEdit.setText(newPath)

  871.     return newPath

  872. 

  873. # ------------------------------------------------------------------------------------------------------------

  874. # Backwards-compatible horizontalAdvance/width call, depending on Qt version

  875. 

  876. def fontMetricsHorizontalAdvance(fontMetrics, string):

  877.     if QT_VERSION >= 0x50b00:

  878.         return fontMetrics.horizontalAdvance(string)

  879.     return fontMetrics.width(string)

  880. 

  881. # ------------------------------------------------------------------------------------------------------------

  882. # Custom QMessageBox which resizes itself to fit text

  883. 

  884. class QMessageBoxWithBetterWidth(QMessageBox):

  885.     def __init__(self, parent):

  886.         QMessageBox.__init__(self, parent)

  887. 

  888.     def showEvent(self, event):

  889.         fontMetrics = self.fontMetrics()

  890. 

  891.         lines = self.text().strip().split("\n") + self.informativeText().strip().split("\n")

  892. 

  893.         if lines:

  894.             width = 0

  895. 

  896.             for line in lines:

  897.                 width = max(fontMetricsHorizontalAdvance(fontMetrics, line), width)

  898. 

  899.             self.layout().setColumnMinimumWidth(2, width + 12)

  900. 

  901.         QMessageBox.showEvent(self, event)

  902. 

  903. # ------------------------------------------------------------------------------------------------------------

  904. # Custom MessageBox

  905. 

  906. # pylint: disable=too-many-arguments

  907. def CustomMessageBox(parent, icon, title, text,

  908.                      extraText="",

  909.                      buttons=QMessageBox.Yes|QMessageBox.No,

  910.                      defButton=QMessageBox.No):

  911.     msgBox = QMessageBoxWithBetterWidth(parent)

  912.     msgBox.setIcon(icon)

  913.     msgBox.setWindowTitle(title)

  914.     msgBox.setText(text)

  915.     msgBox.setInformativeText(extraText)

  916.     msgBox.setStandardButtons(buttons)

  917.     msgBox.setDefaultButton(defButton)

  918.     return msgBox.exec_()

  919. # pylint: enable=too-many-arguments

  920. 

  921. # ------------------------------------------------------------------------------------------------------------