src/gui/uithemesource.h

   1 /*
   2  * Bittorrent Client using Qt and libtorrent.
   3  * Copyright (C) 2023  Vladimir Golovnev <glassez@yandex.ru>
   4  * Copyright (C) 2019  Prince Gupta <jagannatharjun11@gmail.com>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  19  * USA.
  20  *
  21  * In addition, as a special exception, the copyright holders give permission to
  22  * link this program with the OpenSSL project's "OpenSSL" library (or with
  23  * modified versions of it that use the same license as the "OpenSSL" library),
  24  * and distribute the linked executables. You must obey the GNU General Public
  25  * License in all respects for all of the code used other than "OpenSSL".  If
  26  * you modify file(s), you may extend this exception to your version of the
  27  * file(s), but you are not obligated to do so. If you do not wish to do so,
  28  * delete this exception statement from your version.
  29  */
  30
  31 #pragma once
  32
  33 #include <memory>
  34
  35 #include <QColor>
  36 #include <QCoreApplication>
  37 #include <QHash>
  38 #include <QIcon>
  39 #include <QString>
  40
  41 #include "base/path.h"
  42 #include "uithemecommon.h"
  43
  44 enum class ColorMode
  45 {
  46     Light,
  47     Dark
  48 };
  49
  50 class UIThemeSource
  51 {
  52     Q_DECLARE_TR_FUNCTIONS(UIThemeSource)
  53
  54 public:
  55     virtual ~UIThemeSource() = default;
  56
  57     virtual QColor getColor(const QString &colorId, ColorMode colorMode) const = 0;
  58     virtual Path getIconPath(const QString &iconId, ColorMode colorMode) const = 0;
  59     virtual QByteArray readStyleSheet() = 0;
  60 };
  61
  62 class DefaultThemeSource final : public UIThemeSource
  63 {
  64 public:
  65     DefaultThemeSource();
  66
  67     QByteArray readStyleSheet() override;
  68     QColor getColor(const QString &colorId, ColorMode colorMode) const override;
  69     Path getIconPath(const QString &iconId, ColorMode colorMode) const override;
  70
  71 private:
  72     void loadColors();
  73
  74     const Path m_defaultPath;
  75     const Path m_userPath;
  76     QHash<QString, UIThemeColor> m_colors;
  77 };
  78
  79 class CustomThemeSource : public UIThemeSource
  80 {
  81 public:
  82     QColor getColor(const QString &colorId, ColorMode colorMode) const override;
  83     Path getIconPath(const QString &iconId, ColorMode colorMode) const override;
  84     QByteArray readStyleSheet() override;
  85
  86 protected:
  87     explicit CustomThemeSource(const Path &themeRootPath);
  88
  89     DefaultThemeSource *defaultThemeSource() const;
  90
  91 private:
  92     Path themeRootPath() const;
  93     void loadColors();
  94
  95     const std::unique_ptr<DefaultThemeSource> m_defaultThemeSource = std::make_unique<DefaultThemeSource>();
  96     Path m_themeRootPath;
  97     QHash<QString, QColor> m_colors;
  98     QHash<QString, QColor> m_darkModeColors;
  99 };
 100
 101 class QRCThemeSource final : public CustomThemeSource
 102 {
 103 public:
 104     QRCThemeSource();
 105 };
 106
 107 class FolderThemeSource : public CustomThemeSource
 108 {
 109 public:
 110     explicit FolderThemeSource(const Path &folderPath);
 111
 112     QByteArray readStyleSheet() override;
 113
 114 private:
 115     const Path m_folder;
 116 };