item_relative_gump.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 ULTIMA8_GUMPS_ITEMRELATIVEGUMP_H
#define ULTIMA8_GUMPS_ITEMRELATIVEGUMP_H

#include "ultima/ultima8/gumps/gump.h"
#include "ultima/ultima8/misc/classtype.h"

namespace Ultima {
namespace Ultima8 {

class ItemRelativeGump : public Gump {
protected:
    int32 _ix, _iy;

public:
    ENABLE_RUNTIME_CLASSTYPE()

    ItemRelativeGump();
    ItemRelativeGump(int32 x, int32 y, int32 width, int32 height, uint16 owner, uint32 flags = 0, int32 layer = LAYER_NORMAL);
    ~ItemRelativeGump() override;

    void        InitGump(Gump *newparent, bool take_focus = true) override;

    // Paint the Gump (RenderSurface is relative to parent).
    // Calls PaintThis and PaintChildren.
    void        Paint(RenderSurface *, int32 lerp_factor, bool scaled) override;

    void        ParentToGump(int32 &px, int32 &py,
                                     PointRoundDir r = ROUND_TOPLEFT) override;
    void        GumpToParent(int32 &gx, int32 &gy,
                                     PointRoundDir r = ROUND_TOPLEFT) override;

    void        Move(int32 x, int32 y) override;

    bool                loadData(Common::ReadStream *rs, uint32 version);
protected:
    void        saveData(Common::WriteStream *ws) override;

    virtual void        GetItemLocation(int32 lerp_factor);

    void                MoveOnScreen();
};

} // End of namespace Ultima8
} // End of namespace Ultima

#endif