Mercurial > hg > svcore
view plugin/PluginPathSetter.h @ 1583:c8fad3c14a2b bqaudiostream
Start wiring in BQAudioStream stuff
author | Chris Cannam |
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date | Thu, 06 Dec 2018 12:50:28 +0000 |
parents | 75fe1c1e003f |
children |
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */ /* Sonic Visualiser An audio file viewer and annotation editor. Centre for Digital Music, Queen Mary, University of London. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. See the file COPYING included with this distribution for more information. */ #ifndef SV_PLUGIN_PATH_SETTER_H #define SV_PLUGIN_PATH_SETTER_H #include <QString> #include <QStringList> #include <QMutex> #include <map> #include "checker/knownplugins.h" class PluginPathSetter { public: typedef std::pair<KnownPlugins::PluginType, KnownPlugins::BinaryFormat> TypeKey; typedef std::vector<TypeKey> TypeKeys; struct PathConfig { QStringList directories; // Actual list of directories arising // from user settings, environment // variables, and defaults as // appropriate QString envVariable; // Name of env var, e.g. LADSPA_PATH bool useEnvVariable; // True if env variable should override // any user settings for this }; typedef std::map<TypeKey, PathConfig> Paths; /// Update *_PATH environment variables from the settings, on /// application startup. Must be called exactly once, before any /// of the other functions in this class has been called static void initialiseEnvironmentVariables(); /// Return default values of paths only, without any environment /// variables or user-defined preferences static Paths getDefaultPaths(); /// Return paths arising from environment variables only, falling /// back to the defaults, without any user-defined preferences static Paths getEnvironmentPaths(); /// Return paths arising from user settings + environment /// variables + defaults as appropriate static Paths getPaths(); /// Save the given paths to the settings static void savePathSettings(Paths paths); /// Return the original value observed on startup for the given /// environment variable, if it is one of the variables used by a /// known path config. static QString getOriginalEnvironmentValue(QString envVariable); private: static Paths m_defaultPaths; static Paths m_environmentPaths; static std::map<QString, QString> m_originalEnvValues; static TypeKeys m_supportedKeys; static QMutex m_mutex; static std::vector<TypeKey> getSupportedKeys(); static Paths getEnvironmentPathsUncached(const TypeKeys &keys); static QString getSettingTagFor(TypeKey); }; #endif