/*      _______   __   __   __   ______   __   __   _______   __   __                 
 *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\                
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 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/                      
 *
 * Copyright (c) 2004, 2005 darkbits                        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
 * Visit: http://guichan.darkbits.org             )Qk<P ` _: :+' .'  "{[
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#ifndef GCN_CONTAINER_HPP
#define GCN_CONTAINER_HPP

#include <list>

#include "guichan/basiccontainer.h"
#include "guichan/graphics.h"
#include "guichan/platform.h"

namespace gcn
{
    /**
     * A container able to contain other Widgets. It is in other words a
     * Widget that holds other Widgets. A Widgets position in the container is
     * always relativ to the Container itself, not the screen. Using a
     * Container as the top Widget in Gui is the only way to use more then one
     * Widget in your Gui.
     */
    class GCN_CORE_DECLSPEC Container: public BasicContainer
    {
    public:

        /**
         * Constructor. A container is opauqe as default.
         *
         * @see setOpaque, isOpaque
         */
        Container();

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

        /**
         * Sets whether the background should be drawn or not. If the
         * Container is not opaque it will be completely transparent.
         *
         * NOTE: This is not the same as to set visibility. A nonvisible
         *       Container will not draw it's content.
         *
         * @param opaque true if the Container should be opaque.
         * @see isOpaque
         */
        virtual void setOpaque(bool opaque);

        /**
         * Checks if the Container is opaque.
         *
         * @return true if the Container is opaque.
         * @see setOpaque
         */
        virtual bool isOpaque() const;

        /**
         * Adds a Widget to the Container.
         *
         * @param widget the Widget to add.
         * @see remove
         */
        virtual void add(Widget* widget);

        /**
         * Adds a Widget to the container and also specifices it's postion
         *
         * @param widget the Widget to add.
         * @param x the x coordinat for the Widget in the Container.
         * @param y the y coordinat for the Widget in the Container.
         * @see remove
         */
        virtual void add(Widget* widget, int x, int y);
    
        /**
         * Removes a Widget from the Container.
         *
         * @param widget the Widget to remove.
         * @throws Exception when the Widget has not been added to the
         *                   Container.
         * @see add, clear
         */
        virtual void remove(Widget* widget);

        /**
         * Clears the Container of all widgets.
         *
         * @see add, remove
         */
        virtual void clear();


        // Inherited from Widget
        
        virtual void draw(Graphics* graphics);

        virtual void drawBorder(Graphics* graphics);
        
        virtual void logic();
        
        virtual void _setFocusHandler(FocusHandler* focusHandler);

        virtual void _mouseInputMessage(const MouseInput &mouseInput);

        virtual void _mouseOutMessage();


        // Inherited from BasicContainer

        virtual void moveToTop(Widget* widget);

        virtual void moveToBottom(Widget* widget);

        virtual void _announceDeath(Widget *widget);

        virtual void getDrawSize(int& width, int& height, Widget* widget);

        virtual void setDirty(bool dirty);
        virtual bool getDirty() const;

    protected:

        /**
         * Draws all children of the Container. The Widgets will bedrawn in
         * the order the Widgets were added to the Container.
         *
         * @param graphics the Graphics object to draw with.
         */
        virtual void drawChildren(Graphics* graphics);
    
        /**
         * Calls the logic function for all children of Container. The Widgets
         * logic function will be called in the order the Widgets were added
         * to the Container.        
         */
        virtual void logicChildren();
      
        Widget* mWidgetWithMouse;
        typedef std::list<Widget*> WidgetList;
        typedef WidgetList::iterator WidgetIterator;
        typedef WidgetList::const_iterator WidgetConstIterator;
        WidgetList mWidgets;
        bool mOpaque;    
    };  
}

#endif // end GCN_CONTAINER_HPP
