itemcontainer.h

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/*
 *  The Mana Client
 *  Copyright (C) 2004-2009  The Mana World Development Team
 *  Copyright (C) 2009-2012  The Mana Developers
 *
 *  This file is part of The Mana Client.
 *
 *  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 2 of the License, or
 *  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/>.
 */
 
#pragma once
 
#include <guichan/keylistener.hpp>
#include <guichan/mouselistener.hpp>
#include <guichan/widget.hpp>
#include <guichan/widgetlistener.hpp>
 
#include <map>
#include <list>
 
class Image;
class Inventory;
class Item;
class ItemPopup;
 
namespace gcn {
    class SelectionListener;
}
 
class ItemContainer : public gcn::Widget,
                      public gcn::KeyListener,
                      public gcn::MouseListener,
                      public gcn::WidgetListener
{
    public:
        ItemContainer(Inventory *inventory);
 
        ~ItemContainer() override;
 
        void hidePopup();
 
        void logic() override;
 
        void draw(gcn::Graphics *graphics) override;
 
        // Overridden to disable drawing of the frame
        void drawFrame(gcn::Graphics *graphics) override {}
 
        // KeyListener
        void keyPressed(gcn::KeyEvent &event) override;
        void keyReleased(gcn::KeyEvent &event) override;
 
        // MouseListener
        void mousePressed(gcn::MouseEvent &event) override;
        void mouseDragged(gcn::MouseEvent &event) override;
        void mouseReleased(gcn::MouseEvent &event) override;
        void mouseMoved(gcn::MouseEvent &event) override;
        void mouseExited(gcn::MouseEvent &event) override;
 
        // WidgetListener
        void widgetResized(const gcn::Event &event) override;
 
        Item *getSelectedItem() const;
 
        void selectNone();
 
 
        void setFilter(const std::string &filter);
 
        void addSelectionListener(gcn::SelectionListener *listener)
        {
            mSelectionListeners.push_back(listener);
        }
 
        void removeSelectionListener(gcn::SelectionListener *listener)
        {
            mSelectionListeners.remove(listener);
        }
 
    private:
        enum Direction
        {
            Left,
            Right,
            Up,
            Down
        };
 
        enum SelectionState
        {
            SEL_NONE = 0,
            SEL_SELECTED,
            SEL_SELECTING,
            SEL_DESELECTING,
            SEL_DRAGGING
        };
 
        void keyAction();
 
        void moveHighlight(Direction direction);
 
        void setSelectedIndex(int index);
 
        void adjustHeight();
 
        void distributeValueChangedEvent();
 
        int getSlotIndex(int x, int y) const;
 
        Item *getItemAt(int) const;
 
        Inventory *mInventory;
        int mGridColumns = 1;
        int mGridRows = 1;
        int mSelectedIndex = -1;
        int mHighlightedIndex = -1;
        int mLastUsedSlot = -1;
        SelectionState mSelectionStatus = SEL_NONE;
        bool mSwapItems = false;
        bool mDescItems = false;
        int mDragPosX = 0;
        int mDragPosY = 0;
 
        std::map<int, Item*> mFilteredMap;
 
        std::string mFilter;
 
        ItemPopup *mItemPopup;
 
        std::list<gcn::SelectionListener *> mSelectionListeners;
};