/*
 * Copyright 2014 Martin Gräßlin <mgraesslin@kde.org>
 * Copyright 2015 Marco Martin <mart@kde.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) version 3, or any
 * later version accepted by the membership of KDE e.V. (or its
 * successor approved by the membership of KDE e.V.), which shall
 * act as a proxy defined in Section 6 of version 3 of the license.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef WINDOWEFFECTS_H
#define WINDOWEFFECTS_H
#include <KWindowSystem/private/kwindoweffects_p.h>
#include <kwindowsystem_version.h>

#include <QHash>

namespace KWayland
{
    namespace Client
    {
        class BlurManager;
        class ContrastManager;
        class Compositor;
        class ConnectionThread;
    }
}

class WindowEffects : public QObject, public KWindowEffectsPrivate
{
    Q_OBJECT
public:
    WindowEffects();
    ~WindowEffects() override;

    static QWindow *windowForId(WId);

    bool eventFilter(QObject *watched, QEvent *event) override;
    void trackWindow(QWindow *window);
    void releaseWindow(QWindow *window);

    bool isEffectAvailable(KWindowEffects::Effect effect) override;
    void slideWindow(WId id, KWindowEffects::SlideFromLocation location, int offset) override;
#if KWINDOWSYSTEM_VERSION <= QT_VERSION_CHECK(5, 61, 0)
    void slideWindow(QWidget *widget, KWindowEffects::SlideFromLocation location) override;
#endif
    QList<QSize> windowSizes(const QList<WId> &ids) override;
    void presentWindows(WId controller, const QList<WId> &ids) override;
    void presentWindows(WId controller, int desktop = NET::OnAllDesktops) override;
    void highlightWindows(WId controller, const QList<WId> &ids) override;
    void enableBlurBehind(WId winId, bool enable = true, const QRegion &region = QRegion()) override;
    void enableBlurBehind(QWindow *window, bool enable, const QRegion &region);
    void enableBackgroundContrast(WId winId, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion()) override;
    void enableBackgroundContrast(QWindow *window, bool enable = true, qreal contrast = 1, qreal intensity = 1, qreal saturation = 1, const QRegion &region = QRegion());
#if KWINDOWSYSTEM_BUILD_DEPRECATED_SINCE(5, 67)
    void markAsDashboard(WId window) override;
#endif
private:
    QHash<QWindow *, QMetaObject::Connection> m_windowWatchers;
    QHash<QWindow *, QRegion> m_blurRegions;
    struct BackgroundContrastData {
        qreal contrast = 1;
        qreal intensity = 1;
        qreal saturation = 1;
        QRegion region;
    };
    QHash<QWindow *, BackgroundContrastData> m_backgroundConstrastRegions;

};

#endif
