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listbox.hpp

/*      _______   __   __   __   ______   __   __   _______   __   __
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 * Copyright (c) 2004, 2005, 2006, 2007 Olof Naessén and Per Larsson
 *
 *                                                         Js_./
 * Per Larsson a.k.a finalman                          _RqZ{a<^_aa
 * Olof Naessén a.k.a jansem/yakslem                _asww7!uY`>  )\a//
 *                                                 _Qhm`] _f "'c  1!5m
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#ifndef GCN_LISTBOX_HPP
#define GCN_LISTBOX_HPP

#include "guichan/keylistener.hpp"
#include "guichan/listmodel.hpp"
#include "guichan/mouselistener.hpp"
#include "guichan/platform.hpp"
#include "guichan/widget.hpp"

namespace gcn
{
    /**
     * A ListBox displaying a list in which elemets can be selected. Only one
     * element can be selected at time. ListBox uses a ListModel to handle the
     * list. To be able to use ListBox you must give ListBox an implemented
     * ListModel which represents your list.
     */
00074     class GCN_CORE_DECLSPEC ListBox :
        public Widget,
        public MouseListener,
        public KeyListener
    {
    public:
        /**
         * Constructor.
         */
        ListBox();

        /**
         * Constructor.
         *
         * @param listModel the ListModel to use.
         */
        ListBox(ListModel *listModel);

        /**
         * Destructor.
         */
00095         virtual ~ListBox() { }

        /**
         * Gets the ListModel index of the selected element.
         *
         * @return the ListModel index of the selected element.
         */
        virtual int getSelected();

        /**
         * Sets the ListModel index of the selected element.
         *
         * @param selected the ListModel index of the selected element.
         */
        virtual void setSelected(int selected);

        /**
         * Sets the ListModel to use.
         *
         * @param listModel the ListModel to use.
         */
        virtual void setListModel(ListModel *listModel);

        /**
         * Gets the ListModel used.
         *
         * @return the ListModel used.
         */
        virtual ListModel *getListModel();

        /**
         * Adjusts the size of the ListBox to fit the font used.
         */
        virtual void adjustSize();

        /**
         * Checks whether the ListBox wraps when selecting items with keyboard.
         *
         * Wrapping means that if up is pressed and the first item is selected, the last
         * item will get selected. If down is pressed and the last item is selected, the
         * first item will get selected.
         *
         * @return true if wrapping, fasle otherwise.
         */
        virtual bool isWrappingKeyboardSelection();

        /**
         * Sets the ListBox to wrap or not when selecting items with keyboard.
         *
         * Wrapping means that if up is pressed and the first item is selected, the last
         * item will get selected. If down is pressed and the last item is selected, the
         * first item will get selected.
         *
         */
         virtual void setWrappingKeyboardSelection(bool wrapping);

        // Inherited from Widget

        virtual void draw(Graphics* graphics);

        virtual void drawBorder(Graphics* graphics);

        virtual void logic();


        // Inherited from KeyListener

        virtual void keyPressed(KeyEvent& keyEvent);


        // Inherited from MouseListener

        virtual void mousePressed(MouseEvent& mouseEvent);

        virtual void mouseWheelMovedUp(MouseEvent& mouseEvent);

        virtual void mouseWheelMovedDown(MouseEvent& mouseEvent);
        
        virtual void mouseDragged(MouseEvent& mouseEvent);

        
    protected:
        ListModel *mListModel;
        int mSelected;
        bool mWrappingKeyboardSelection;
    };
}

#endif // end GCN_LISTBOX_HPP

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