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dropdown.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_DROPDOWN_HPP
#define GCN_DROPDOWN_HPP

#include "guichan/actionlistener.hpp"
#include "guichan/basiccontainer.hpp"
#include "guichan/deathlistener.hpp"
#include "guichan/focushandler.hpp"
#include "guichan/keylistener.hpp"
#include "guichan/listmodel.hpp"
#include "guichan/mouselistener.hpp"
#include "guichan/platform.hpp"
#include "guichan/widgets/listbox.hpp"
#include "guichan/widgets/scrollarea.hpp"

namespace gcn
{
    /**
     * A drop down box from which you can select different values. It is one of
     * the most complicated Widgets you will find in Guichan. For drawing the
     * DroppedDown box it uses one ScrollArea and one ListBox. It also uses an
     * internal FocusHandler to handle the focus of the internal ScollArea and
     * ListBox. DropDown uses a ListModel to handle the list. To be able to use
     * DropDown you must give DropDown an implemented ListModel which represents
     * your list.
     */
00082     class GCN_CORE_DECLSPEC DropDown :
        public ActionListener,
        public BasicContainer,
        public KeyListener,
        public MouseListener
    {
    public:
        /**
         * Contructor.
         *
         * @param listModel the ListModel to use.
         * @param scrollArea the ScrollArea to use.
         * @param listBox the listBox to use.
         * @see ListModel, ScrollArea, ListBox.
         */
        DropDown(ListModel *listModel = NULL,
                 ScrollArea *scrollArea = NULL,
                 ListBox *listBox = NULL);

        /**
         * Destructor.
         */
        virtual ~DropDown();

        /**
         * Gets the index int the ListModel of the selected element.
         *
         * @return 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 height of the DropDown fitting it's parents height.
         */
        virtual void adjustHeight();


        // Inherited from Widget

        virtual void draw(Graphics* graphics);

        virtual void drawBorder(Graphics* graphics);

        virtual void focusLost();

        virtual void setBaseColor(const Color& color);

        virtual void setBackgroundColor(const Color& color);

        virtual void setForegroundColor(const Color& color);

        virtual void logic();

            virtual void setFont(Font *font);


        // Inherited from BasicContainer

        virtual Rectangle getChildrenArea();


        // Inherited from ActionListener

        virtual void action(const ActionEvent& actionEvent);


        // Inherited from DeathListener

        virtual void death(const Event& event);

        // Inherited from KeyListener

        virtual void keyPressed(KeyEvent& keyEvent);


        // Inherited from MouseListener

        virtual void mousePressed(MouseEvent& mouseEvent);

        virtual void mouseReleased(MouseEvent& mouseEvent);

        virtual void mouseWheelMovedUp(MouseEvent& mouseEvent);

        virtual void mouseWheelMovedDown(MouseEvent& mouseEvent);

        virtual void mouseDragged(MouseEvent& mouseEvent);
        
    protected:
        /**
         * Draws the button with the little down arrow.
         *
         * @param graphics a Graphics object to draw with.
         */
        virtual void drawButton(Graphics *graphics);

        /**
         * Sets the DropDown Widget to dropped-down mode.
         */
        virtual void dropDown();

        /**
         * Sets the DropDown Widget to folded-up mode.
         */
        virtual void foldUp();

        bool mDroppedDown;
        bool mPushed;
        int mOldH;
        ScrollArea* mScrollArea;
        ListBox* mListBox;
        FocusHandler mInternalFocusHandler;
        bool mInternalScrollArea;
        bool mInternalListBox;
        bool mIsDragged;
    };
}

#endif // end GCN_DROPDOWN_HPP

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