widget.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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 3 of the License, 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef MUTATIONOFJB_WIDGET_H
#define MUTATIONOFJB_WIDGET_H

#include "common/scummsys.h"
#include "common/rect.h"

namespace Common {
struct Event;
}

namespace Graphics {
class ManagedSurface;
}

namespace MutationOfJB {

class GuiScreen;

class Widget {
public:
    enum : uint {
        DIRTY_NONE = 0,
        DIRTY_ALL = 0xFFFFFFFF
    };

    Widget(GuiScreen &gui, const Common::Rect &area) : _gui(gui), _area(area), _id(0), _visible(true), _enabled(true), _dirtyBits(DIRTY_NONE) {}
    virtual ~Widget() {}

    int getId() const;
    void setId(int id);

    bool isVisible() const;
    void setVisible(bool visible);

    bool isEnabled() const;
    void setEnabled(bool enabled);

    Common::Rect getArea() const;
    void setArea(const Common::Rect &area);

    bool isDirty() const;
    void markDirty(uint32 dirtyBits = DIRTY_ALL);
    void update(Graphics::ManagedSurface &);

    virtual void handleEvent(const Common::Event &) {}
protected:
    virtual void draw(Graphics::ManagedSurface &) = 0;

    GuiScreen &_gui;
    Common::Rect _area;
    int _id;
    bool _visible;
    bool _enabled;
    uint32 _dirtyBits;
};

}

#endif