/********************************************************************
Copyright 2014  Martin Gräßlin <mgraesslin@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 WAYLAND_SERVER_OUTPUT_INTERFACE_H
#define WAYLAND_SERVER_OUTPUT_INTERFACE_H

#include <QObject>
#include <QPoint>
#include <QSize>

#include <KWayland/Server/kwaylandserver_export.h>
#include "global.h"

struct wl_global;
struct wl_client;
struct wl_resource;

namespace KWayland
{
namespace Server
{

class Display;

/**
 * @brief Global for the wl_output interface.
 *
 **/
class KWAYLANDSERVER_EXPORT OutputInterface : public Global
{
    Q_OBJECT
    Q_PROPERTY(QSize physicalSize READ physicalSize WRITE setPhysicalSize NOTIFY physicalSizeChanged)
    Q_PROPERTY(QPoint globalPosition READ globalPosition WRITE setGlobalPosition NOTIFY globalPositionChanged)
    Q_PROPERTY(QString manufacturer READ manufacturer WRITE setManufacturer NOTIFY manufacturerChanged)
    Q_PROPERTY(QString model READ model WRITE setModel NOTIFY modelChanged)
    Q_PROPERTY(QSize pixelSize READ pixelSize NOTIFY pixelSizeChanged)
    Q_PROPERTY(int refreshRate READ refreshRate NOTIFY refreshRateChanged)
    Q_PROPERTY(int scale READ scale WRITE setScale NOTIFY scaleChanged)
public:
    enum class SubPixel {
        Unknown,
        None,
        HorizontalRGB,
        HorizontalBGR,
        VerticalRGB,
        VerticalBGR
    };
    enum class Transform {
        Normal,
        Rotated90,
        Rotated180,
        Rotated270,
        Flipped,
        Flipped90,
        Flipped180,
        Flipped270
    };
    enum class ModeFlag {
        Current = 1,
        Preferred = 2
    };
    Q_DECLARE_FLAGS(ModeFlags, ModeFlag)
    struct Mode {
        QSize size = QSize();
        int refreshRate = 60000;
        ModeFlags flags;
    };
    enum class DpmsMode {
        On,
        Standby,
        Suspend,
        Off
    };
    virtual ~OutputInterface();

    QSize physicalSize() const;
    QPoint globalPosition() const;
    QString manufacturer() const;
    QString model() const;
    QSize pixelSize() const;
    int refreshRate() const;
    int scale() const;
    SubPixel subPixel() const;
    Transform transform() const;
    QList<Mode> modes() const;
    bool isDpmsSupported() const;
    DpmsMode dpmsMode() const;

    void setPhysicalSize(const QSize &size);
    void setGlobalPosition(const QPoint &pos);
    void setManufacturer(const QString &manufacturer);
    void setModel(const QString &model);
    void setScale(int scale);
    void setSubPixel(SubPixel subPixel);
    void setTransform(Transform transform);
    void addMode(const QSize &size, ModeFlags flags = ModeFlags(), int refreshRate = 60000);
    void setCurrentMode(const QSize &size, int refreshRate = 60000);

    /**
     * Sets whether Dpms is supported for this output.
     * Default is @c false.
     * @since 5.5
     **/
    void setDpmsSupported(bool supported);
    /**
     * Sets the currently used dpms mode.
     * Default is @c DpmsMode::On.
     * @since 5.5
     **/
    void setDpmsMode(DpmsMode mode);

    static OutputInterface *get(wl_resource *native);

Q_SIGNALS:
    void physicalSizeChanged(const QSize&);
    void globalPositionChanged(const QPoint&);
    void manufacturerChanged(const QString&);
    void modelChanged(const QString&);
    void pixelSizeChanged(const QSize&);
    void refreshRateChanged(int);
    void scaleChanged(int);
    void subPixelChanged(SubPixel);
    void transformChanged(Transform);
    void modesChanged();
    void currentModeChanged();
    void dpmsModeChanged();
    void dpmsSupportedChanged();

    /**
     * Change of dpms @p mode is requested.
     * A server is free to ignore this request.
     * @since 5.5
     **/
    void dpmsModeRequested(KWayland::Server::OutputInterface::DpmsMode mode);

private:
    friend class Display;
    explicit OutputInterface(Display *display, QObject *parent = nullptr);
    class Private;
    Private *d_func() const;
};

}
}

Q_DECLARE_OPERATORS_FOR_FLAGS(KWayland::Server::OutputInterface::ModeFlags)
Q_DECLARE_METATYPE(KWayland::Server::OutputInterface::SubPixel)
Q_DECLARE_METATYPE(KWayland::Server::OutputInterface::Transform)
Q_DECLARE_METATYPE(KWayland::Server::OutputInterface::DpmsMode)

#endif