1 /* 2 * Bittorrent Client using Qt and libtorrent. 3 * Copyright (C) 2019 Prince Gupta <jagannatharjun11@gmail.com> 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License 7 * as published by the Free Software Foundation; either version 2 8 * of the License, or (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 18 * USA. 19 * 20 * In addition, as a special exception, the copyright holders give permission to 21 * link this program with the OpenSSL project's "OpenSSL" library (or with 22 * modified versions of it that use the same license as the "OpenSSL" library), 23 * and distribute the linked executables. You must obey the GNU General Public 24 * License in all respects for all of the code used other than "OpenSSL". If 25 * you modify file(s), you may extend this exception to your version of the 26 * file(s), but you are not obligated to do so. If you do not wish to do so, 27 * delete this exception statement from your version. 28 */ 29 30 #pragma once 31 32 #include <QColor> 33 #include <QHash> 34 #include <QIcon> 35 #include <QObject> 36 #include <QString> 37 38 class UIThemeManager : public QObject 39 { 40 Q_OBJECT 41 Q_DISABLE_COPY(UIThemeManager) 42 43 public: 44 static void initInstance(); 45 static void freeInstance(); 46 static UIThemeManager *instance(); 47 48 QString getIconPath(const QString &iconId) const; 49 QIcon getIcon(const QString &iconId, const QString &fallback = {}) const; 50 QIcon getFlagIcon(const QString &countryIsoCode) const; 51 52 QColor getColor(const QString &id, const QColor &defaultColor) const; 53 54 private: 55 UIThemeManager(); // singleton class 56 QString getIconPathFromResources(const QString &iconId, const QString &fallback = {}) const; 57 void loadColorsFromJSONConfig(); 58 void applyPalette() const; 59 void applyStyleSheet() const; 60 61 static UIThemeManager *m_instance; 62 QHash<QString, QColor> m_colors; 63 mutable QHash<QString, QIcon> m_iconCache; 64 mutable QHash<QString, QIcon> m_flagCache; 65 const bool m_useCustomTheme; 66 #if (defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)) 67 const bool m_useSystemTheme; 68 #endif 69 }; 70