thememanager_p.h

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/* ============================================================
 *
 * This file is a part of digiKam project
 * https://www.digikam.org
 *
 * Date        : 2004-08-02
 * Description : colors theme manager - private classes
 *
 * Copyright (C) 2006-2022 by Gilles Caulier <caulier dot gilles at gmail dot com>
 * Copyright (C) 2007      by Matthew Woehlke <mw_triad at users dot sourceforge dot net>
 *
 * 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, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * ============================================================ */
 
#ifndef DIGIKAM_THEME_MANAGER_P_H
#define DIGIKAM_THEME_MANAGER_P_H
 
#include "thememanager.h"
 
// C++ includes
 
#include <cmath>
 
// Qt includes
 
#include <QWidget>
#include <QPainter>
#include <QStringList>
#include <QFileInfo>
#include <QPalette>
#include <QColor>
#include <QPixmap>
#include <QApplication>
#include <QAction>
#include <QStandardPaths>
#include <QDirIterator>
#include <QMenu>
#include <QStyle>
#include <QExplicitlySharedDataPointer>
#include <QBrush>
#include <QBitmap>
#include <QActionGroup>
 
// KDE includes
 
#if !defined(Q_OS_DARWIN) && defined(Q_CC_GNU)
#   pragma GCC diagnostic push
#   pragma GCC diagnostic ignored "-Wdeprecated-declarations"
#endif
 
#if defined(Q_CC_CLANG)
#   pragma clang diagnostic push
#   pragma clang diagnostic ignored "-Wdeprecated-declarations"
#endif
 
#include <ksharedconfig.h>
#include <kactioncollection.h>
#include <kconfiggroup.h>
#include <klocalizedstring.h>
 
// Restore warnings
#if !defined(Q_OS_DARWIN) && defined(Q_CC_GNU)
#   pragma GCC diagnostic pop
#endif
 
#if defined(Q_CC_CLANG)
#   pragma clang diagnostic pop
#endif
 
// Local includes
 
#include "digikam_debug.h"
#include "dxmlguiwindow.h"
 
namespace Digikam
{
 
class SchemeManagerPrivate;
 
class Q_DECL_HIDDEN SchemeManager
{
public:
 
    enum ColorSet
    {
        View,
        Window,
        Button,
        Selection,
        Tooltip,
        Complementary
    };
 
    enum BackgroundRole
    {
        NormalBackground    = 0,
        AlternateBackground = 1,
        ActiveBackground    = 2,
        LinkBackground      = 3,
        VisitedBackground   = 4,
        NegativeBackground  = 5,
        NeutralBackground   = 6,
        PositiveBackground  = 7
    };
 
    enum ForegroundRole
    {
        NormalText   = 0,
        InactiveText = 1,
        ActiveText   = 2,
        LinkText     = 3,
        VisitedText  = 4,
        NegativeText = 5,
        NeutralText  = 6,
        PositiveText = 7
    };
 
    enum DecorationRole
    {
        FocusColor,
        HoverColor
    };
 
    enum ShadeRole
    {
        LightShade,
        MidlightShade,
        MidShade,
        DarkShade,
        ShadowShade
    };
 
public:
 
    SchemeManager(const SchemeManager&);
 
    ~SchemeManager() = default;
 
    SchemeManager& operator=(const SchemeManager&);
 
    explicit SchemeManager(QPalette::ColorGroup state,
                           ColorSet set = View,
                           KSharedConfigPtr config = KSharedConfigPtr());
 
    QBrush background(BackgroundRole = NormalBackground)    const;
 
    QBrush foreground(ForegroundRole = NormalText)          const;
 
    QBrush decoration(DecorationRole)                       const;
 
    QColor shade(ShadeRole)                                 const;
 
    static int contrast();
 
    static qreal contrastF(const KSharedConfigPtr& config = KSharedConfigPtr());
 
    static QColor shade(const QColor&, ShadeRole);
 
    static QColor shade(const QColor&,
                        ShadeRole,
                        qreal contrast,
                        qreal chromaAdjust = 0.0);
 
    static void adjustBackground(QPalette&,
                                 BackgroundRole newRole = NormalBackground,
                                 QPalette::ColorRole color = QPalette::Base,
                                 ColorSet set = View,
                                 const KSharedConfigPtr& config = KSharedConfigPtr());
 
    static void adjustForeground(QPalette&,
                                 ForegroundRole newRole = NormalText,
                                 QPalette::ColorRole color = QPalette::Text,
                                 ColorSet set = View,
                                 const KSharedConfigPtr& config = KSharedConfigPtr());
 
    static QPalette createApplicationPalette(const KSharedConfigPtr& config);
 
private:
 
    QExplicitlySharedDataPointer<SchemeManagerPrivate> d;
};
 
// --------------------------------------------------------------------------
 
class Q_DECL_HIDDEN ThemeManager::Private
{
public:
 
    explicit Private();
 
    QPixmap createSchemePreviewIcon(const KSharedConfigPtr& config) const;
 
public:
 
    const QString          defaultThemeName;
    QMap<QString, QString> themeMap;            
 
    QActionGroup*          themeMenuActionGroup;
    QMenu*                 themeMenuAction;
};
 
} // namespace Digikam
 
#endif // DIGIKAM_THEME_MANAGER_P_H