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

  3. 

  4. # Common Carla code

  5. # Copyright (C) 2011-2022 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 os

  23. import sys

  24. 

  25. from math import fmod

  26. 

  27. # ------------------------------------------------------------------------------------------------------------

  28. # Imports (Signal)

  29. 

  30. from signal import signal, SIGINT, SIGTERM

  31. 

  32. try:

  33.     from signal import SIGUSR1

  34.     haveSIGUSR1 = True

  35. except:

  36.     haveSIGUSR1 = False

  37. 

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

  39. # Imports (PyQt5)

  40. 

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

  42. try:

  43.     from PyQt5.Qt import PYQT_VERSION_STR

  44. except ImportError:

  45.     from PyQt5.QtCore import PYQT_VERSION_STR

  46. 

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

  48. from PyQt5.QtGui import QIcon

  49. from PyQt5.QtWidgets import QFileDialog, QMessageBox

  50. 

  51. # ------------------------------------------------------------------------------------------------------------

  52. # Imports (Custom)

  53. 

  54. from carla_backend import (

  55.     MAX_DEFAULT_PARAMETERS,

  56.     ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS,

  57.     ENGINE_PROCESS_MODE_PATCHBAY,

  58.     ENGINE_TRANSPORT_MODE_INTERNAL,

  59.     ENGINE_TRANSPORT_MODE_JACK

  60. )

  61. 

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

  63. 

  64. # ------------------------------------------------------------------------------------------------------------

  65. # Config

  66. 

  67. # These will be modified during install

  68. X_LIBDIR_X = None

  69. X_DATADIR_X = None

  70. 

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

  72. # Platform specific stuff

  73. 

  74. if WINDOWS:

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

  76. 

  77. # ------------------------------------------------------------------------------------------------------------

  78. # Set TMP

  79. 

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

  81. 

  82. if envTMP is None:

  83.     if WINDOWS:

  84.         qWarning("TMP variable not set")

  85.     TMP = QDir.tempPath()

  86. else:

  87.     TMP = envTMP

  88. 

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

  90.     qWarning("TMP does not exist")

  91.     TMP = "/"

  92. 

  93. del envTMP

  94. 

  95. # ------------------------------------------------------------------------------------------------------------

  96. # Set HOME

  97. 

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

  99. 

  100. if envHOME is None:

  101.     if not WINDOWS:

  102.         qWarning("HOME variable not set")

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

  104. else:

  105.     HOME = envHOME

  106. 

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

  108.     qWarning("HOME does not exist")

  109.     HOME = TMP

  110. 

  111. del envHOME

  112. 

  113. # ------------------------------------------------------------------------------------------------------------

  114. # Set PATH

  115. 

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

  117. 

  118. if envPATH is None:

  119.     qWarning("PATH variable not set")

  120.     if MACOS:

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

  122.     elif WINDOWS:

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

  124.     else:

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

  126. else:

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

  128. 

  129. del envPATH

  130. 

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

  132. # Static MIDI CC list

  133. 

  134. MIDI_CC_LIST = (

  135.     "01 [0x01] Modulation",

  136.     "02 [0x02] Breath",

  137.     "04 [0x04] Foot",

  138.     "05 [0x05] Portamento",

  139.     "07 [0x07] Volume",

  140.     "08 [0x08] Balance",

  141.     "10 [0x0A] Pan",

  142.     "11 [0x0B] Expression",

  143.     "12 [0x0C] FX Control 1",

  144.     "13 [0x0D] FX Control 2",

  145.     "16 [0x10] General Purpose 1",

  146.     "17 [0x11] General Purpose 2",

  147.     "18 [0x12] General Purpose 3",

  148.     "19 [0x13] General Purpose 4",

  149.     "70 [0x46] Control 1 [Variation]",

  150.     "71 [0x47] Control 2 [Timbre]",

  151.     "72 [0x48] Control 3 [Release]",

  152.     "73 [0x49] Control 4 [Attack]",

  153.     "74 [0x4A] Control 5 [Brightness]",

  154.     "75 [0x4B] Control 6 [Decay]",

  155.     "76 [0x4C] Control 7 [Vib Rate]",

  156.     "77 [0x4D] Control 8 [Vib Depth]",

  157.     "78 [0x4E] Control 9 [Vib Delay]",

  158.     "79 [0x4F] Control 10 [Undefined]",

  159.     "80 [0x50] General Purpose 5",

  160.     "81 [0x51] General Purpose 6",

  161.     "82 [0x52] General Purpose 7",

  162.     "83 [0x53] General Purpose 8",

  163.     "84 [0x54] Portamento Control",

  164.     "91 [0x5B] FX 1 Depth [Reverb]",

  165.     "92 [0x5C] FX 2 Depth [Tremolo]",

  166.     "93 [0x5D] FX 3 Depth [Chorus]",

  167.     "94 [0x5E] FX 4 Depth [Detune]",

  168.     "95 [0x5F] FX 5 Depth [Phaser]"

  169. )

  170. 

  171. MAX_MIDI_CC_LIST_ITEM = 95

  172. 

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

  174. # PatchCanvas defines

  175. 

  176. CANVAS_ANTIALIASING_SMALL = 1

  177. CANVAS_EYECANDY_SMALL     = 1

  178. 

  179. # ------------------------------------------------------------------------------------------------------------

  180. # Carla Settings keys

  181. 

  182. CARLA_KEY_MAIN_PROJECT_FOLDER   = "Main/ProjectFolder"   # str

  183. CARLA_KEY_MAIN_USE_PRO_THEME    = "Main/UseProTheme"     # bool

  184. CARLA_KEY_MAIN_PRO_THEME_COLOR  = "Main/ProThemeColor"   # str

  185. CARLA_KEY_MAIN_REFRESH_INTERVAL = "Main/RefreshInterval" # int

  186. CARLA_KEY_MAIN_CONFIRM_EXIT     = "Main/ConfirmExit"     # bool

  187. CARLA_KEY_MAIN_CLASSIC_SKIN     = "Main/ClassicSkin"     # bool

  188. CARLA_KEY_MAIN_SHOW_LOGS        = "Main/ShowLogs"        # bool

  189. CARLA_KEY_MAIN_SYSTEM_ICONS     = "Main/SystemIcons"     # bool

  190. CARLA_KEY_MAIN_EXPERIMENTAL     = "Main/Experimental"    # bool

  191. 

  192. CARLA_KEY_CANVAS_THEME             = "Canvas/Theme"           # str

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

  194. CARLA_KEY_CANVAS_USE_BEZIER_LINES  = "Canvas/UseBezierLines"  # bool

  195. CARLA_KEY_CANVAS_AUTO_HIDE_GROUPS  = "Canvas/AutoHideGroups"  # bool

  196. CARLA_KEY_CANVAS_AUTO_SELECT_ITEMS = "Canvas/AutoSelectItems" # bool

  197. CARLA_KEY_CANVAS_EYE_CANDY         = "Canvas/EyeCandy2"       # bool

  198. CARLA_KEY_CANVAS_FANCY_EYE_CANDY   = "Canvas/FancyEyeCandy"   # bool

  199. CARLA_KEY_CANVAS_USE_OPENGL        = "Canvas/UseOpenGL"       # bool

  200. CARLA_KEY_CANVAS_ANTIALIASING      = "Canvas/Antialiasing"    # enum

  201. CARLA_KEY_CANVAS_HQ_ANTIALIASING   = "Canvas/HQAntialiasing"  # bool

  202. CARLA_KEY_CANVAS_INLINE_DISPLAYS   = "Canvas/InlineDisplays"  # bool

  203. CARLA_KEY_CANVAS_FULL_REPAINTS     = "Canvas/FullRepaints"    # bool

  204. 

  205. CARLA_KEY_ENGINE_DRIVER_PREFIX         = "Engine/Driver-"

  206. CARLA_KEY_ENGINE_AUDIO_DRIVER          = "Engine/AudioDriver"         # str

  207. CARLA_KEY_ENGINE_AUDIO_DEVICE          = "Engine/AudioDevice"         # str

  208. CARLA_KEY_ENGINE_BUFFER_SIZE           = "Engine/BufferSize"          # int

  209. CARLA_KEY_ENGINE_SAMPLE_RATE           = "Engine/SampleRate"          # int

  210. CARLA_KEY_ENGINE_TRIPLE_BUFFER         = "Engine/TripleBuffer"        # bool

  211. CARLA_KEY_ENGINE_PROCESS_MODE          = "Engine/ProcessMode"         # enum

  212. CARLA_KEY_ENGINE_TRANSPORT_MODE        = "Engine/TransportMode"       # enum

  213. CARLA_KEY_ENGINE_TRANSPORT_EXTRA       = "Engine/TransportExtra"      # str

  214. CARLA_KEY_ENGINE_FORCE_STEREO          = "Engine/ForceStereo"         # bool

  215. CARLA_KEY_ENGINE_PREFER_PLUGIN_BRIDGES = "Engine/PreferPluginBridges" # bool

  216. CARLA_KEY_ENGINE_PREFER_UI_BRIDGES     = "Engine/PreferUiBridges"     # bool

  217. CARLA_KEY_ENGINE_MANAGE_UIS            = "Engine/ManageUIs"           # bool

  218. CARLA_KEY_ENGINE_UIS_ALWAYS_ON_TOP     = "Engine/UIsAlwaysOnTop"      # bool

  219. CARLA_KEY_ENGINE_MAX_PARAMETERS        = "Engine/MaxParameters"       # int

  220. CARLA_KEY_ENGINE_RESET_XRUNS           = "Engine/ResetXruns"          # bool

  221. CARLA_KEY_ENGINE_UI_BRIDGES_TIMEOUT    = "Engine/UiBridgesTimeout"    # int

  222. 

  223. CARLA_KEY_OSC_ENABLED          = "OSC/Enabled"

  224. CARLA_KEY_OSC_TCP_PORT_ENABLED = "OSC/TCPEnabled"

  225. CARLA_KEY_OSC_TCP_PORT_NUMBER  = "OSC/TCPNumber"

  226. CARLA_KEY_OSC_TCP_PORT_RANDOM  = "OSC/TCPRandom"

  227. CARLA_KEY_OSC_UDP_PORT_ENABLED = "OSC/UDPEnabled"

  228. CARLA_KEY_OSC_UDP_PORT_NUMBER  = "OSC/UDPNumber"

  229. CARLA_KEY_OSC_UDP_PORT_RANDOM  = "OSC/UDPRandom"

  230. 

  231. CARLA_KEY_PATHS_AUDIO = "Paths/Audio"

  232. CARLA_KEY_PATHS_MIDI  = "Paths/MIDI"

  233. 

  234. CARLA_KEY_PATHS_LADSPA = "Paths/LADSPA"

  235. CARLA_KEY_PATHS_DSSI   = "Paths/DSSI"

  236. CARLA_KEY_PATHS_LV2    = "Paths/LV2"

  237. CARLA_KEY_PATHS_VST2   = "Paths/VST2"

  238. CARLA_KEY_PATHS_VST3   = "Paths/VST3"

  239. CARLA_KEY_PATHS_CLAP   = "Paths/CLAP"

  240. CARLA_KEY_PATHS_SF2    = "Paths/SF2"

  241. CARLA_KEY_PATHS_SFZ    = "Paths/SFZ"

  242. CARLA_KEY_PATHS_JSFX   = "Paths/JSFX"

  243. 

  244. CARLA_KEY_WINE_EXECUTABLE      = "Wine/Executable"     # str

  245. CARLA_KEY_WINE_AUTO_PREFIX     = "Wine/AutoPrefix"     # bool

  246. CARLA_KEY_WINE_FALLBACK_PREFIX = "Wine/FallbackPrefix" # str

  247. CARLA_KEY_WINE_RT_PRIO_ENABLED = "Wine/RtPrioEnabled"  # bool

  248. CARLA_KEY_WINE_BASE_RT_PRIO    = "Wine/BaseRtPrio"     # int

  249. CARLA_KEY_WINE_SERVER_RT_PRIO  = "Wine/ServerRtPrio"   # int

  250. 

  251. CARLA_KEY_EXPERIMENTAL_PLUGIN_BRIDGES        = "Experimental/PluginBridges"       # bool

  252. CARLA_KEY_EXPERIMENTAL_WINE_BRIDGES          = "Experimental/WineBridges"         # bool

  253. CARLA_KEY_EXPERIMENTAL_JACK_APPS             = "Experimental/JackApplications"    # bool

  254. CARLA_KEY_EXPERIMENTAL_EXPORT_LV2            = "Experimental/ExportLV2"           # bool

  255. CARLA_KEY_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = "Experimental/PreventBadBehaviour" # bool

  256. CARLA_KEY_EXPERIMENTAL_LOAD_LIB_GLOBAL       = "Experimental/LoadLibGlobal"       # bool

  257. 

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

  259. CARLA_KEY_CUSTOM_PAINTING = "UseCustomPainting" # bool

  260. 

  261. # ------------------------------------------------------------------------------------------------------------

  262. # Carla Settings defaults

  263. 

  264. # Main

  265. CARLA_DEFAULT_MAIN_PROJECT_FOLDER   = HOME

  266. CARLA_DEFAULT_MAIN_USE_PRO_THEME    = True

  267. CARLA_DEFAULT_MAIN_PRO_THEME_COLOR  = "Black"

  268. CARLA_DEFAULT_MAIN_REFRESH_INTERVAL = 20

  269. CARLA_DEFAULT_MAIN_CONFIRM_EXIT     = True

  270. CARLA_DEFAULT_MAIN_CLASSIC_SKIN     = False

  271. CARLA_DEFAULT_MAIN_SHOW_LOGS        = bool(not WINDOWS)

  272. CARLA_DEFAULT_MAIN_SYSTEM_ICONS     = False

  273. CARLA_DEFAULT_MAIN_EXPERIMENTAL     = False

  274. 

  275. # Canvas

  276. CARLA_DEFAULT_CANVAS_THEME             = "Modern Dark"

  277. CARLA_DEFAULT_CANVAS_SIZE              = "3100x2400"

  278. CARLA_DEFAULT_CANVAS_SIZE_WIDTH        = 3100

  279. CARLA_DEFAULT_CANVAS_SIZE_HEIGHT       = 2400

  280. CARLA_DEFAULT_CANVAS_USE_BEZIER_LINES  = True

  281. CARLA_DEFAULT_CANVAS_AUTO_HIDE_GROUPS  = True

  282. CARLA_DEFAULT_CANVAS_AUTO_SELECT_ITEMS = False

  283. CARLA_DEFAULT_CANVAS_EYE_CANDY         = True

  284. CARLA_DEFAULT_CANVAS_FANCY_EYE_CANDY   = False

  285. CARLA_DEFAULT_CANVAS_USE_OPENGL        = False

  286. CARLA_DEFAULT_CANVAS_ANTIALIASING      = CANVAS_ANTIALIASING_SMALL

  287. CARLA_DEFAULT_CANVAS_HQ_ANTIALIASING   = False

  288. CARLA_DEFAULT_CANVAS_INLINE_DISPLAYS   = False

  289. CARLA_DEFAULT_CANVAS_FULL_REPAINTS     = False

  290. 

  291. # Engine

  292. CARLA_DEFAULT_FORCE_STEREO          = False

  293. CARLA_DEFAULT_PREFER_PLUGIN_BRIDGES = False

  294. CARLA_DEFAULT_PREFER_UI_BRIDGES     = True

  295. CARLA_DEFAULT_MANAGE_UIS            = True

  296. CARLA_DEFAULT_UIS_ALWAYS_ON_TOP     = False

  297. CARLA_DEFAULT_MAX_PARAMETERS        = MAX_DEFAULT_PARAMETERS

  298. CARLA_DEFAULT_RESET_XRUNS           = False

  299. CARLA_DEFAULT_UI_BRIDGES_TIMEOUT    = 4000

  300. 

  301. CARLA_DEFAULT_AUDIO_BUFFER_SIZE     = 512

  302. CARLA_DEFAULT_AUDIO_SAMPLE_RATE     = 44100

  303. CARLA_DEFAULT_AUDIO_TRIPLE_BUFFER   = False

  304. 

  305. if HAIKU:

  306.     CARLA_DEFAULT_AUDIO_DRIVER = "SDL"

  307. elif MACOS:

  308.     CARLA_DEFAULT_AUDIO_DRIVER = "CoreAudio"

  309. elif WINDOWS:

  310.     CARLA_DEFAULT_AUDIO_DRIVER = "Windows Audio"

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

  312.     CARLA_DEFAULT_AUDIO_DRIVER = "JACK"

  313. else:

  314.     CARLA_DEFAULT_AUDIO_DRIVER = "PulseAudio"

  315. 

  316. if CARLA_DEFAULT_AUDIO_DRIVER == "JACK":

  317.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_MULTIPLE_CLIENTS

  318.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_JACK

  319. else:

  320.     CARLA_DEFAULT_PROCESS_MODE   = ENGINE_PROCESS_MODE_PATCHBAY

  321.     CARLA_DEFAULT_TRANSPORT_MODE = ENGINE_TRANSPORT_MODE_INTERNAL

  322. 

  323. # OSC

  324. CARLA_DEFAULT_OSC_ENABLED = not (MACOS or WINDOWS)

  325. CARLA_DEFAULT_OSC_TCP_PORT_ENABLED = True

  326. CARLA_DEFAULT_OSC_TCP_PORT_NUMBER  = 22752

  327. CARLA_DEFAULT_OSC_TCP_PORT_RANDOM  = False

  328. CARLA_DEFAULT_OSC_UDP_PORT_ENABLED = True

  329. CARLA_DEFAULT_OSC_UDP_PORT_NUMBER  = 22752

  330. CARLA_DEFAULT_OSC_UDP_PORT_RANDOM  = False

  331. 

  332. # Wine

  333. CARLA_DEFAULT_WINE_EXECUTABLE      = "wine"

  334. CARLA_DEFAULT_WINE_AUTO_PREFIX     = True

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

  336. CARLA_DEFAULT_WINE_RT_PRIO_ENABLED = True

  337. CARLA_DEFAULT_WINE_BASE_RT_PRIO    = 15

  338. CARLA_DEFAULT_WINE_SERVER_RT_PRIO  = 10

  339. 

  340. # Experimental

  341. CARLA_DEFAULT_EXPERIMENTAL_PLUGIN_BRIDGES        = False

  342. CARLA_DEFAULT_EXPERIMENTAL_WINE_BRIDGES          = False

  343. CARLA_DEFAULT_EXPERIMENTAL_JACK_APPS             = False

  344. CARLA_DEFAULT_EXPERIMENTAL_LV2_EXPORT            = False

  345. CARLA_DEFAULT_EXPERIMENTAL_PREVENT_BAD_BEHAVIOUR = False

  346. CARLA_DEFAULT_EXPERIMENTAL_LOAD_LIB_GLOBAL       = False

  347. 

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

  349. # Default File Folders

  350. 

  351. CARLA_DEFAULT_FILE_PATH_AUDIO = []

  352. CARLA_DEFAULT_FILE_PATH_MIDI  = []

  353. 

  354. # ------------------------------------------------------------------------------------------------------------

  355. # Default Plugin Folders (get)

  356. 

  357. DEFAULT_LADSPA_PATH = ""

  358. DEFAULT_DSSI_PATH   = ""

  359. DEFAULT_LV2_PATH    = ""

  360. DEFAULT_VST2_PATH   = ""

  361. DEFAULT_VST3_PATH   = ""

  362. DEFAULT_CLAP_PATH   = ""

  363. DEFAULT_SF2_PATH    = ""

  364. DEFAULT_SFZ_PATH    = ""

  365. DEFAULT_JSFX_PATH   = ""

  366. 

  367. if WINDOWS:

  368.     splitter = ";"

  369. 

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

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

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

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

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

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

  376. 

  377.     # Small integrity tests

  378.     if not APPDATA:

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

  380.         sys.exit(1)

  381. 

  382.     if not PROGRAMFILES:

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

  384.         sys.exit(1)

  385. 

  386.     if not COMMONPROGRAMFILES:

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

  388.         sys.exit(1)

  389. 

  390.     DEFAULT_LADSPA_PATH  = APPDATA + "\\LADSPA"

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

  392. 

  393.     DEFAULT_DSSI_PATH    = APPDATA + "\\DSSI"

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

  395. 

  396.     DEFAULT_LV2_PATH     = APPDATA + "\\LV2"

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

  398. 

  399.     DEFAULT_VST2_PATH    = PROGRAMFILES + "\\VstPlugins"

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

  401. 

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

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

  404. 

  405.     if kIs64bit:

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

  407. 

  408.     DEFAULT_VST3_PATH    = COMMONPROGRAMFILES + "\\VST3"

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

  410. 

  411.     DEFAULT_CLAP_PATH    = COMMONPROGRAMFILES + "\\CLAP"

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

  413. 

  414.     DEFAULT_SF2_PATH     = APPDATA + "\\SF2"

  415.     DEFAULT_SFZ_PATH     = APPDATA + "\\SFZ"

  416. 

  417.     if PROGRAMFILESx86:

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

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

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

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

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

  423. 

  424.     if COMMONPROGRAMFILESx86:

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

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

  427. 

  428. elif HAIKU:

  429.     splitter = ":"

  430. 

  431.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

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

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

  434. 

  435.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

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

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

  438. 

  439.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

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

  441. 

  442.     DEFAULT_VST2_PATH    = HOME + "/.vst"

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

  444. 

  445.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

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

  447. 

  448.     DEFAULT_CLAP_PATH    = HOME + "/.clap"

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

  450. 

  451. elif MACOS:

  452.     splitter = ":"

  453. 

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

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

  456. 

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

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

  459. 

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

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

  462. 

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

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

  465. 

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

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

  468. 

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

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

  471. 

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

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

  474. 

  475. else:

  476.     splitter = ":"

  477. 

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

  479. 

  480.     DEFAULT_LADSPA_PATH  = HOME + "/.ladspa"

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

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

  483. 

  484.     DEFAULT_DSSI_PATH    = HOME + "/.dssi"

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

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

  487. 

  488.     DEFAULT_LV2_PATH     = HOME + "/.lv2"

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

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

  491. 

  492.     DEFAULT_VST2_PATH    = HOME + "/.vst"

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

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

  495. 

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

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

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

  499. 

  500.     DEFAULT_VST3_PATH    = HOME + "/.vst3"

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

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

  503. 

  504.     DEFAULT_CLAP_PATH    = HOME + "/.clap"

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

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

  507. 

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

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

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

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

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

  513. 

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

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

  516. 

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

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

  519. 

  520. if not WINDOWS:

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

  522. 

  523.     if not winePrefix:

  524.         winePrefix = HOME + "/.wine"

  525. 

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

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

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

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

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

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

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

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

  534. 

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

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

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

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

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

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

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

  542. 

  543.     del winePrefix

  544. 

  545. # ------------------------------------------------------------------------------------------------------------

  546. # Default Plugin Folders (set)

  547. 

  548. readEnvVars = True

  549. 

  550. if WINDOWS:

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

  552.     # pylint: disable=import-error

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

  554.     # pylint: enable=import-error

  555.     _reg = ConnectRegistry(None, HKEY_CURRENT_USER)

  556. 

  557.     try:

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

  559.         CloseKey(_key)

  560.         del _key

  561.         readEnvVars = False

  562.     except:

  563.         pass

  564. 

  565.     CloseKey(_reg)

  566.     del _reg

  567. 

  568. if readEnvVars:

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

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

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

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

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

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

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

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

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

  578. 

  579. else:

  580.     CARLA_DEFAULT_LADSPA_PATH = DEFAULT_LADSPA_PATH.split(splitter)

  581.     CARLA_DEFAULT_DSSI_PATH   = DEFAULT_DSSI_PATH.split(splitter)

  582.     CARLA_DEFAULT_LV2_PATH    = DEFAULT_LV2_PATH.split(splitter)

  583.     CARLA_DEFAULT_VST2_PATH   = DEFAULT_VST2_PATH.split(splitter)

  584.     CARLA_DEFAULT_VST3_PATH   = DEFAULT_VST3_PATH.split(splitter)

  585.     CARLA_DEFAULT_CLAP_PATH   = DEFAULT_CLAP_PATH.split(splitter)

  586.     CARLA_DEFAULT_SF2_PATH    = DEFAULT_SF2_PATH.split(splitter)

  587.     CARLA_DEFAULT_SFZ_PATH    = DEFAULT_SFZ_PATH.split(splitter)

  588.     CARLA_DEFAULT_JSFX_PATH   = DEFAULT_JSFX_PATH.split(splitter)

  589. 

  590. # ------------------------------------------------------------------------------------------------------------

  591. # Default Plugin Folders (cleanup)

  592. 

  593. del DEFAULT_LADSPA_PATH

  594. del DEFAULT_DSSI_PATH

  595. del DEFAULT_LV2_PATH

  596. del DEFAULT_VST2_PATH

  597. del DEFAULT_VST3_PATH

  598. del DEFAULT_CLAP_PATH

  599. del DEFAULT_SF2_PATH

  600. del DEFAULT_SFZ_PATH

  601. 

  602. # ------------------------------------------------------------------------------------------------------------

  603. # Global Carla object

  604. 

  605. class CarlaObject():

  606.     def __init__(self):

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

  608.         self.gui      = None  # Host Window

  609.         self.nogui    = False # Skip UI

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

  611.         self.felib    = None  # Frontend lib object

  612.         self.utils    = None  # Utils object

  613. 

  614. gCarla = CarlaObject()

  615. 

  616. # ------------------------------------------------------------------------------------------------------------

  617. # Set CWD

  618. 

  619. CWD = sys.path[0]

  620. 

  621. if not CWD:

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

  623. 

  624. # make it work with cxfreeze

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

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

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

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

  629.     CXFREEZE = True

  630.     if not WINDOWS:

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

  632. else:

  633.     CXFREEZE = False

  634. 

  635. # ------------------------------------------------------------------------------------------------------------

  636. # Set DLL_EXTENSION

  637. 

  638. if WINDOWS:

  639.     DLL_EXTENSION = "dll"

  640. elif MACOS:

  641.     DLL_EXTENSION = "dylib"

  642. else:

  643.     DLL_EXTENSION = "so"

  644. 

  645. # ------------------------------------------------------------------------------------------------------------

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

  647. 

  648. def countDecimalPoints(step, stepSmall):

  649.     if stepSmall >= 1.0:

  650.         return 0

  651.     if step >= 1.0:

  652.         return 2

  653. 

  654.     count = 0

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

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

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

  658.         count += 1

  659. 

  660.     return count

  661. 

  662. # ------------------------------------------------------------------------------------------------------------

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

  664. 

  665. def isNumber(value):

  666.     try:

  667.         float(value)

  668.         return True

  669.     except:

  670.         return False

  671. 

  672. # ------------------------------------------------------------------------------------------------------------

  673. # Convert a value to a list

  674. 

  675. def toList(value):

  676.     if value is None:

  677.         return []

  678.     if not isinstance(value, list):

  679.         return [value]

  680.     return value

  681. 

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

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

  684. 

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

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

  687. 

  688. # ------------------------------------------------------------------------------------------------------------

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

  690. 

  691. def handleInitialCommandLineArguments(file):

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

  693.     libPrefix = None

  694.     readPrefixNext = False

  695. 

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

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

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

  699. 

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

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

  702. 

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

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

  705. 

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

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

  708. 

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

  710.             readPrefixNext = True

  711. 

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

  713.             pass

  714. 

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

  716.             gCarla.nogui = True

  717. 

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

  719.             pass

  720. 

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

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

  723.             print("")

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

  725.             print("")

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

  727.             print("")

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

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

  730.                 if X_LIBDIR_X is not None:

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

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

  733.                 print("")

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

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

  736.             print("")

  737. 

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

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

  740.                 sys.exit(1)

  741. 

  742.             sys.exit(0)

  743. 

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

  745.             pathBinaries, pathResources = getPaths(libPrefix)

  746. 

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

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

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

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

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

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

  753. 

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

  755. 

  756.         elif readPrefixNext:

  757.             readPrefixNext = False

  758.             gCarla.cnprefix = arg

  759. 

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

  761.         if os.fork():

  762.             # pylint: disable=protected-access

  763.             os._exit(0)

  764.             # pylint: enable=protected-access

  765.         else:

  766.             os.setsid()

  767. 

  768.     return (initName, libPrefix)

  769. 

  770. # ------------------------------------------------------------------------------------------------------------

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

  772. 

  773. def getInitialProjectFile(skipExistCheck = False):

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

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

  776.     args = sys.argv[1:]

  777.     readPrefixNext = False

  778.     for arg in args:

  779.         if readPrefixNext:

  780.             readPrefixNext = False

  781.             continue

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

  783.             continue

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

  785.             continue

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

  787.             continue

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

  789.             continue

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

  791.             readPrefixNext = True

  792.             continue

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

  794.             continue

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

  796.             continue

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

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

  799.             return arg

  800. 

  801.     return None

  802. 

  803. # ------------------------------------------------------------------------------------------------------------

  804. # Get paths (binaries, resources)

  805. 

  806. def getPaths(libPrefix = None):

  807.     CWDl = CWD.lower()

  808. 

  809.     # adjust for special distros

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

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

  812. 

  813.     # standalone, installed system-wide linux

  814.     if libPrefix is not None:

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

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

  817. 

  818.     # standalone, local source

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

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

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

  822. 

  823.     # plugin

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

  825.         # installed system-wide linux

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

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

  828.             pathResources = CWD

  829. 

  830.         # local source

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

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

  833.             pathResources = CWD

  834. 

  835.         # other

  836.         else:

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

  838.             pathResources = CWD

  839. 

  840.     # everything else

  841.     else:

  842.         pathBinaries  = CWD

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

  844. 

  845.     return (pathBinaries, pathResources)

  846. 

  847. # ------------------------------------------------------------------------------------------------------------

  848. # Signal handler

  849. # TODO move to carla_host.py or something

  850. 

  851. def signalHandler(sig, frame):

  852.     if sig in (SIGINT, SIGTERM):

  853.         gCarla.term = True

  854.         if gCarla.gui is not None:

  855.             gCarla.gui.SIGTERM.emit()

  856. 

  857.     elif haveSIGUSR1 and sig == SIGUSR1:

  858.         if gCarla.gui is not None:

  859.             gCarla.gui.SIGUSR1.emit()

  860. 

  861. def setUpSignals():

  862.     signal(SIGINT,  signalHandler)

  863.     signal(SIGTERM, signalHandler)

  864. 

  865.     if not haveSIGUSR1:

  866.         return

  867. 

  868.     signal(SIGUSR1, signalHandler)

  869. 

  870. # ------------------------------------------------------------------------------------------------------------

  871. # QLineEdit and QPushButton combo

  872. 

  873. def getAndSetPath(parent, lineEdit):

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

  875.     if newPath:

  876.         lineEdit.setText(newPath)

  877.     return newPath

  878. 

  879. # ------------------------------------------------------------------------------------------------------------

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

  881. 

  882. def fontMetricsHorizontalAdvance(fontMetrics, string):

  883.     if QT_VERSION >= 0x50b00:

  884.         return fontMetrics.horizontalAdvance(string)

  885.     return fontMetrics.width(string)

  886. 

  887. # ------------------------------------------------------------------------------------------------------------

  888. # Custom QMessageBox which resizes itself to fit text

  889. 

  890. class QMessageBoxWithBetterWidth(QMessageBox):

  891.     def __init__(self, parent):

  892.         QMessageBox.__init__(self, parent)

  893. 

  894.     def showEvent(self, event):

  895.         fontMetrics = self.fontMetrics()

  896. 

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

  898. 

  899.         if lines:

  900.             width = 0

  901. 

  902.             for line in lines:

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

  904. 

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

  906. 

  907.         QMessageBox.showEvent(self, event)

  908. 

  909. # ------------------------------------------------------------------------------------------------------------

  910. # Custom MessageBox

  911. 

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

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

  914.                      extraText="",

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

  916.                      defButton=QMessageBox.No):

  917.     msgBox = QMessageBoxWithBetterWidth(parent)

  918.     msgBox.setIcon(icon)

  919.     msgBox.setWindowTitle(title)

  920.     msgBox.setText(text)

  921.     msgBox.setInformativeText(extraText)

  922.     msgBox.setStandardButtons(buttons)

  923.     msgBox.setDefaultButton(defButton)

  924.     return msgBox.exec_()

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

  926. 

  927. # ------------------------------------------------------------------------------------------------------------