inventorybox.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 NANCY_UI_INVENTORYBOX_H
#define NANCY_UI_INVENTORYBOX_H

#include "engines/nancy/time.h"

#include "engines/nancy/renderobject.h"

namespace Nancy {

class NancyEngine;
struct NancyInput;

namespace State {
class Scene;
}

namespace UI {

class Scrollbar;

class InventoryBox : public RenderObject {
    friend class Nancy::State::Scene;

public:
    struct ItemDescription {
        Common::String name; // 0x00
        byte keepItem = kInvItemUseThenLose; // 0x14
        Common::Rect sourceRect; // 0x16
    };

    InventoryBox();
    virtual ~InventoryBox();

    void init() override;
    void updateGraphics() override;
    void registerGraphics() override;
    void handleInput(NancyInput &input);

    void onScrollbarMove();

private:
    // These are private since they should only be called from Scene
    void addItem(const int16 itemID);
    void removeItem(const int16 itemID);

    void onReorder();
    void setHotspots(const uint pageNr);
    void drawItemInSlot(const uint itemID, const uint slotID, const bool highlighted = false);

    class Curtains : public RenderObject {
    public:
        Curtains();
        virtual ~Curtains() = default;

        void init() override;
        void updateGraphics() override;

        void setOpen(bool open) { _areOpen = open; }

        void setAnimationFrame(uint frame);

        uint _numFrames;
        uint _curFrame;
        Time _nextFrameTime;
        bool _areOpen;
        bool _soundTriggered;
    };

    struct ItemHotspot {
        int16 itemID = -1;
        int itemOrder = -1; // index of the item into the _order array
        Common::Rect hotspot; // in screen coordinates
    };

    Graphics::ManagedSurface _iconsSurface;
    Graphics::ManagedSurface _fullInventorySurface;

    Scrollbar *_scrollbar;
    Curtains _curtains;

    float _scrollbarPos;

    Common::Array<int16> _order;
    ItemHotspot _itemHotspots[4];
    int _highlightedHotspot;

    const struct INV *_inventoryData;
};

} // End of namespace UI
} // End of namespace Nancy

#endif // NANCY_UI_INVENTORYBOX_H