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// Copyright 2015-2021 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#ifndef MUMBLE_MUMBLE_THEMES_H_
#define MUMBLE_MUMBLE_THEMES_H_
#include <Settings.h>
#include <ThemeInfo.h>
#ifndef Q_MOC_RUN
# include <boost/optional.hpp>
#endif
class Themes {
public:
/// Returns the style configured in the given settings structure
static boost::optional< ThemeInfo::StyleInfo > getConfiguredStyle(const Settings &settings);
/// Updates the given settings object to be configured to the given style
///
/// @note Does not apply the theme @see apply
///
/// @param settings Settings object to update
/// @param style Style to set
/// @param outChanged Will be set to true if the style in settings actually changed. Will not be changed otherwise.
static void setConfiguredStyle(Settings &settings, boost::optional< ThemeInfo::StyleInfo > style, bool &outChanged);
/// Applies the theme
///
/// @note Can only apply a theme before MainWindow etc. is opened
static bool apply();
/// Return a theme name to theme map
static ThemeMap getThemes();
/// Returns the per user themes directory
static QDir getUserThemesDirectory();
private:
/// Applies the fallback stylesheet
static void applyFallback();
/// Tries to apply the configured theme.
/// @return True on success. False on failure.
static bool applyConfigured();
// Sets the theme to a QSS theme
static void setTheme(QString &themeQss, QStringList &skinPaths);
/// Returns list of theme search directories ordered ascending by priorty (lowest first)
static QVector< QDir > getSearchDirectories();
/// Returns default style-sheet used for fall-backs
static QString getDefaultStylesheet();
/// userStylesheetPath returns the absolute path to the
/// user.qss file.
static QString userStylesheetPath();
/// readStylesheet fills stylesheetContent with the content
/// of the file at stylesheetFn, if available.
/// If a the file is is available, the function returns true.
/// If no file is available, it returns false.
static bool readStylesheet(const QString &stylesheetFn, QString &stylesheetContent);
};
#endif // MUMBLE_MUMBLE_THEMES_H_
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