source: OGRE/trunk/ogrenew/Dependencies/include/CEGUI/CEGUIWindow.h @ 657

/************************************************************************
        filename:       CEGUIWindow.h
        created:        21/2/2004
        author:         Paul D Turner
        
        purpose:        Defines abstract base class for Window objects
*************************************************************************/
/*************************************************************************
    Crazy Eddie's GUI System (http://www.cegui.org.uk)
    Copyright (C)2004 - 2005 Paul D Turner (paul@cegui.org.uk)

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library 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
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*************************************************************************/
#ifndef _CEGUIWindow_h_
#define _CEGUIWindow_h_

#include "CEGUIBase.h"
#include "CEGUIString.h"
#include "CEGUIVector.h"
#include "CEGUIRect.h"
#include "CEGUISize.h"
#include "CEGUIEventSet.h"
#include "CEGUIPropertySet.h"
#include "CEGUISystem.h"
#include "CEGUIInputEvent.h"
#include "CEGUIWindowProperties.h"
#include <vector>


#if defined(_MSC_VER)
#       pragma warning(push)
#       pragma warning(disable : 4251)
#endif


// Start of CEGUI namespace section
namespace CEGUI
{

/*!
\brief
        Mode used for Window size and position metrics.

        Position information for a Window is always 'relative' to it's parent even in Absolute mode.
        In Relative mode, layout is maintained for different screen resolutions, and also  offers the
        ability for child windows to properly adjust their layout as their parent is sized.
*/
enum MetricsMode
{
        Relative,               //!< Metrics are specified as a decimal fraction of parent Window size.
        Absolute,               //!< Metrics are specified as whole pixels.
        Inherited               //!< Metrics are inherited from parent.
};


/*!
\brief
        An abstract base class providing common functionality and specifying the required interface for derived classes.

        The Window base class is the only UI object class that the core of the system knows about, for this reason every
        other window, widget, or similar item within the system must be derived from Window.  The base class provides the
        common functionality required by all UI objects, and specifies the minimal interface required to be implemented by
        derived classes.
*/
class CEGUIEXPORT Window : public PropertySet, public EventSet
{
public:
        static const String EventNamespace;                             //!< Namespace for global events

        /*************************************************************************
                Event name constants
        *************************************************************************/
        // generated internally by Window
        static const String EventParentSized;                           //!< Parent of this Window has been re-sized.
        static const String EventSized;                                 //!< Window size has changed
        static const String EventMoved;                                 //!< Window position has changed
        static const String EventTextChanged;                           //!< Text string for the Window has changed
        static const String EventFontChanged;                           //!< Font object for the Window has been changed
        static const String EventAlphaChanged;                  //!< Alpha blend value for the Window has changed
        static const String EventIDChanged;                             //!< Client assigned ID code for the Window has changed
        static const String EventActivated;                             //!< Window has been activated (has input focus)
        static const String EventDeactivated;                           //!< Window has been deactivated (loses input focus)
        static const String EventShown;                                 //!< Window has been made visible
        static const String EventHidden;                                        //!< Window has been hidden from view
        static const String EventEnabled;                                       //!< Window has been enabled (interaction is possible)
        static const String EventDisabled;                              //!< Window has been disabled (interaction is no longer possible)
        static const String EventMetricsModeChanged;            //!< Active metrics mode has been modified
        static const String EventClippedByParentChanged;        //!< Clipping by parent mode has been modified
        static const String EventDestroyedByParentChanged;//!< Destruction by parent mode has been modified
        static const String EventInheritsAlphaChanged;  //!< Alpha inherited from parent mode has been modified.
        static const String EventAlwaysOnTopChanged;            //!< Always on top mode has been modified
        static const String EventInputCaptureGained;            //!< Window has captured all inputs
        static const String EventInputCaptureLost;              //!< Window has lost it's capture on inputs
        static const String EventRenderingStarted;              //!< Rendering of the Window has started
        static const String EventRenderingEnded;                        //!< Rendering for the Window has finished
        static const String EventChildAdded;                            //!< A child Window has been added
        static const String EventChildRemoved;                  //!< A child window has been removed
        static const String EventDestructionStarted;            //!< Destruction of the Window is about to begin.
        static const String EventZOrderChanged;                 //!< The z-order of the window has changed
        static const String EventDragDropItemEnters;    //!< A DragContainer has been dragged over this window.
        static const String EventDragDropItemLeaves;    //!< A DragContainer has left this window.
        static const String EventDragDropItemDropped;   //!< A DragContainer was dropped on this Window.

        // generated externally (inputs)
        static const String EventMouseEnters;                           //!< Mouse cursor has entered the Window.
        static const String EventMouseLeaves;                           //!< Mouse cursor has left the Window.
        static const String EventMouseMove;                             //!< Mouse cursor was moved within the area of the Window.
        static const String EventMouseWheel;                            //!< Mouse wheel was scrolled within the Window.
        static const String EventMouseButtonDown;                       //!< A mouse button was pressed down within the Window.
        static const String EventMouseButtonUp;                 //!< A mouse button was released within the Window.
        static const String EventMouseClick;                            //!< A mouse button was clicked (down then up) within the Window.
        static const String EventMouseDoubleClick;              //!< A mouse button was double-clicked within the Window.
        static const String EventMouseTripleClick;              //!< A mouse button was triple-clicked within the Window.
        static const String EventKeyDown;                                       //!< A key on the keyboard was pressed.
        static const String EventKeyUp;                                 //!< A key on the keyboard was released.
        static const String EventCharacterKey;                  //!< A text character was typed on the keyboard.


        /*************************************************************************
                Construction and Destruction
        *************************************************************************/
        /*!
        \brief
                Constructor for Window base class

        \param type
                String object holding Window type (usually provided by WindowFactory).

        \param name
                String object holding unique name for the Window.
        */
        Window(const String& type, const String& name);


        /*!
        \brief
                Destructor for Window base class
        */
        virtual ~Window(void);


        /*************************************************************************
                Accessor functions
        *************************************************************************/
        /*!
        \brief
                return a String object holding the type name for this Window.

        \return
                String object holding the Window type.
        */
        const String& getType(void) const               {return d_type;}


        /*!
        \brief
                return a String object holding the name of this Window.

        \return
                String object holding the unique Window name.
        */
        const String& getName(void) const               {return d_name;}


        /*!
        \brief
                returns whether or not this Window is set to be destroyed when its parent is destroyed.

        \return
                true if the Window will be destroyed when its parent is destroyed, false if it will remain.
        */
        bool    isDestroyedByParent(void) const         {return d_destroyedByParent;}


        /*!
        \brief
                returns whether or not this Window is an always on top (a.k.a 'topmost') Window.

        \return
                true if this Window is always show on top of other normal windows.  false if the Window has normal z-order behaviour.
        */
        bool    isAlwaysOnTop(void) const                       {return d_alwaysOnTop;}


        /*!
        \brief
                return true if the Window is currently disabled

        \return
                true if the window is disabled, false if the window is enabled.
        */
        bool    isDisabled(void) const;


        /*!
        \brief
                return true if the Window is currently visible.

                A true return from this function does not mean that the window is not completely obscured by other windows, just that the window
                is processed when rendering and is not hidden.

        \return
                true if the window is drawn, false if the window is hidden and therefore ignored when rendering.
        */
        bool    isVisible(void) const;


        /*!
        \brief
                return true if this is the active Window (the window that receives inputs)

                Mouse events are always sent to the window containing the mouse cursor regardless of what this reports (unless the window has captured
                inputs).  This mainly refers to where other (keyboard) inputs are sent.

        \return
                true if this window has input focus, or false if it does not.
        */
        bool    isActive(void) const;


        /*!
        \brief
                return true if this Window is clipped so that its rendering does not pass outside its parent windows area.

        \return
                true if the window will be clipped by its parent window, or false if this windows rendering may pass outside its parents area
        */
        bool    isClippedByParent(void) const           {return d_clippedByParent;}


        /*!
        \brief
                return the ID code currently assigned to this Window by client code.

        \return
                uint value equal to the currently assigned ID code for this Window.
        */
        uint    getID(void) const               {return d_ID;}


        /*!
        \brief
                return the number of child Window objects currently attached to this Window.

        \return
                uint value equal to the number of Window objects directly attached to this Window as children.
        */
        uint   getChildCount(void) const      {return (uint)d_children.size();}


        /*!
        \brief
                returns whether a Window with the specified name is currently attached to this Window as a child.

        \param name
                String object containing the name of the Window to look for.

        \return
                true if a Window named \a name is currently attached to this Window as a child, else false.
        */
        bool    isChild(const String& name) const;


        /*!
        \brief
                returns whether at least one window with the given ID code is attached as a child.

        \note
                ID codes are client assigned and may or may not be unique, and as such, the return from this function
                will only have meaning to the client code.

        \param ID
                uint ID code to look for.

        \return
                true if a child window was found with the ID code \a ID, or false if no child window was found with the ID \a ID.
        */
        bool    isChild(uint ID) const;


        /*!
        \brief
                return true if the given Window is a child of this window.

        \param window
                Pointer to the Window object to look for.

        \return
                true if Window object \a window is attached to this window as a child.
        */
        bool    isChild(const Window* window) const;


        /*!
        \brief
                return a pointer to the child window with the specified name.

                This function will throw an exception if no child object with the given name is attached.  This decision
                was made (over returning NULL if no window was found) so that client code can assume that if the call
                returns it has a valid window pointer.  We provide the isChild() functions for checking if a given window
                is attached.

        \param name
                String object holding the name of the child window to return a pointer to.

        \return
                Pointer to the Window object attached to this window that has the name \a name.

        \exception UnknownObjectException       thrown if no window named \a name is attached to this Window.
        */
        Window* getChild(const String& name) const;


        /*!
        \brief
                return a pointer to the first attached child window with the specified ID.

                This function will throw an exception if no child object with the given ID is attached.  This decision
                was made (over returning NULL if no window was found) so that client code can assume that if the call
                returns it has a valid window pointer.  We provide the isChild() functions for checking if a given window
                is attached.

        \param ID
                uint value specifying the ID code of the window to return a pointer to.

        \return
                Pointer to the (first) Window object attached to this window that has the ID code \a ID.

        \exception UnknownObjectException       thrown if no window with the ID code \a ID is attached to this Window.
        */
        Window* getChild(uint ID) const;


        /*!
        \brief
                return a pointer to the child window that is attached to 'this' at the given index.

        \note
                Window indeces are of limited value to client code, since any time a window is added, removed, or
                it's z-order is changed the indeces all change.

        \param idx
                Index of the child window whos pointer should be returned.  This value is not bounds checked,
                client code should ensure that this is less than the value returned by getChildCount().

        \return
                Pointer to the child window currently attached at index position \a idx
        */
        Window* getChildAtIdx(uint idx) const           {return d_children[idx];}


        /*!
        \brief
                return a pointer to the Window that currently has input focus starting with this Window.

        \return
                Pointer to the window that is active (has input focus) starting at 'this.  Will return 'this' if this Window is active
                and either no children are attached or if none of the attached children are active.  Returns NULL if this Window (and
                therefore all children) are not active.
        */
        Window* getActiveChild(void);
        const Window* getActiveChild(void) const;


        /*!
        \brief
                return true if the specified Window is some ancestor of this Window

        \param name
                String object holding the name of the Window to check for.

        \return
                true if a Window named \a name is an ancestor (parent, or parent of parent, etc) of this Window, or false if not.
        */
        bool    isAncestor(const String& name) const;


        /*!
        \brief
                return true if any Window with the given ID is some ancestor of this Window.

        \param ID
                uint value specifying the ID to look for.

        \return
                true if an ancestor (parent, or parent of parent, etc) was found with the ID code \a ID, else false.
        */
        bool    isAncestor(uint ID) const;


        /*!
        \brief
                return true if the specified Window is some ancestor of this Window.

        \param window
                Pointer to the Window object to look for.

        \return
                true if \a window was found to be an ancestor (parent, or parent of parent, etc) of this Window, otherwise false.
        */
        bool    isAncestor(const Window* window) const;


        /*!
        \brief
                return the Font object active for the Window.

        \return
                Pointer to the Font being used by this Window.  If the window has no assigned font, the default font is returned.
        */
        const Font*             getFont(void) const;


        /*!
        \brief
                return the current text for the Window

        \return
                A String object that holds the current text for this Window.
        */
        const String&   getText(void) const             {return d_text;}


        /*!
        \brief
                return true if the Window inherits alpha from its parent(s).

        \return
                true if the Window inherits alpha from its parent(s), false if the alpha for this Window is independant.
        */
        bool    inheritsAlpha(void) const               {return d_inheritsAlpha;}


        /*!
        \brief
                return the current alpha value set for this Window

        \note
                The alpha value set for any given window may or may not be the final alpha value that is used when rendering.  All window
                objects, by default, inherit alpha from thier parent window(s) - this will blend child windows, relatively, down the line of
                inheritance.  This behaviour can be overridden via the setInheritsAlpha() method.  To return the true alpha value that will be
                applied when rendering, use the getEffectiveAlpha() method.

        \return
                the currently set alpha value for this Window.  Will be between 0.0f and 1.0f.
        */
        float   getAlpha(void) const                    {return d_alpha;}


        /*!
        \brief
                return the effective alpha value that will be used when rendering this window, taking into account inheritance of parent
                window(s) alpha.

        \return
                the effective alpha that will be applied to this Window when rendering.  Will be between 0.0f and 1.0f.
        */
        float   getEffectiveAlpha(void) const;


        /*!
        \brief
                return a Rect object that describes the Window area.

        \return
                Rect object that describes the area covered by the Window.  The values in the returned Rect are in whatever form is set
                as the current metric type.  The returned Rect is unclipped and relative to the Window objects parent.
        */
        Rect    getRect(void) const;


        /*!
        \brief
                return a Rect object describing the Window area in screen space.

        \return
                Rect object that describes the area covered by the Window.  The values in the returned Rect are in screen pixels.  The
                returned Rect is clipped as appropriate and depending upon the 'ClippedByParent' setting.

        \note
                This has now been made virtual to ease some customisations that require more specialised clipping requirements.
        */
        virtual Rect    getPixelRect(void) const;


        /*!
        \brief
                return a Rect object describing the clipped inner area for this window.

        \return
                Rect object that describes, in appropriately clipped screen pixel co-ordinates, the window object's inner rect area.
        */
        Rect    getInnerRect(void) const;


        /*!
        \brief
                return a Rect object describing the Window area unclipped, in screen space.

        \return
                Rect object that describes the area covered by the Window.  The values in the returned Rect are in screen pixels.  The
                returned rect is fully unclipped.
        */
        Rect    getUnclippedPixelRect(void) const;


        /*!
        \brief
                Return a Rect object that describes, unclipped, the inner rectangle for this window.  The inner rectangle is
                typically an area that excludes some frame or other rendering that should not be touched by subsequent rendering.

        \return
                Rect object that describes, in unclipped screen pixel co-ordinates, the window object's inner rect area.
        */
        virtual Rect    getUnclippedInnerRect(void) const;


        /*!
        \brief
                return the Window that currently has inputs captured.

        \return
                Pointer to the Window object that currently has inputs captured, or NULL if no Window has captured input.
        */
        static  Window* getCaptureWindow(void)          {return d_captureWindow;}


        /*!
        \brief
                return true if this Window has input captured.

        \return
                true if this Window has captured inputs, or false if some other Window, or no Window, has captured inputs.
        */
        bool    isCapturedByThis(void) const            {return getCaptureWindow() == this;}


        /*!
        \brief
                return true if a child window has captured inputs.

        \return
                true if inputs are captured by a Window that is attached as a child of this Window, else false.
        */
        bool    isCapturedByAncestor(void) const        {return isAncestor(getCaptureWindow());}


        /*!
        \brief
                return true if an ancestor window has captured inputs.

        \return
                true if inputs are captured by a Window that is some ancestor (parent, parent of parent, etc) of this Window, else false.
        */
        bool    isCapturedByChild(void) const           {return isChild(getCaptureWindow());}


        /*!
        \brief
                check if the given position would hit this window.

        \param position
                Point object describing the position to check in screen pixels

        \return
                true if \a position 'hits' this Window, else false.
        */
        virtual bool    isHit(const Point& position) const;


        /*!
        \brief
                return the child Window that is 'hit' by the given position

        \param position
                Point object that describes the position to check in screen pixels

        \return
                Pointer to the child Window that was hit according to the Point \a position, or NULL if no child window was hit.
        */
        Window* getChildAtPosition(const Point& position) const;


        /*!
        \brief
                return the current metrics mode employed by the Window

        \return
                One of the values of the MectricsMode enumerated type, that describes the current metrics in use by the Window.
        */
        MetricsMode     getMetricsMode(void) const;


        /*!
        \brief
                return the x position of the window.  Interpretation of return value depends upon the metric type in use by this window.

        \return
                float value that specifies the x position of the Window relative to it's parent, depending on the metrics system in use for this
                Window, this value will specify either pixels or a decimal fraction of the width of the parent Window.
        */
        float   getXPosition(void) const;


        /*!
        \brief
                return the y position of the window.  Interpretation of return value depends upon the metric type in use by this window.

        \return
                float value that specifies the y position of the Window relative to it's parent, depending on the metrics system in use for this
                Window, this value will specify either pixels or a decimal fraction of the height of the parent Window.
        */
        float   getYPosition(void) const;


        /*!
        \brief
                return the position of the window.  Interpretation of return value depends upon the metric type in use by this window.

        \return
                Point object that describes the position of the Window relative to it's parent, depending on the metrics system in use for this
                Window, the values in the Point will specify either pixels or decimal fractions of the total width and height of the parent.
        */
        Point   getPosition(void) const;


        /*!
        \brief
                return the width of the Window.  Interpretation of return value depends upon the metric type in use by this window.

        \return
                float value that specifies the width of the Window.  Depending upon the metrics system in use for this window, the return
                value will either be in pixels, or as a decimal fraction of the width of the parent Window.
        */
        float   getWidth(void) const;

        /*!
        \brief
                return the height of the Window.  Interpretation of return value depends upon the metric type in use by this window.

        \return
                float value that specifies the height of the Window.  Depending upon the metrics system in use for this window, the return
                value will either be in pixels, or as a decimal fraction of the height of the parent Window.
        */
        float   getHeight(void) const;


        /*!
        \brief
                return the size of the Window.  Interpretation of return value depends upon the metric type in use by this window.

        \return
                Size object that describes the dimensions of the Window.  Depending upon the metrics system in use for this window, the
                values will either be in pixels, or as decimal fractions of the width and height of the parent Window.
        */
        Size    getSize(void) const;


        /*!
        \brief
                return the parent of this Window.

        \return
                Pointer to the Window object that is the parent of this Window.  This value can be NULL, in which case the Window is a GUI
                Sheet / Root.
        */
        Window* getParent(void) const                           {return d_parent;}


        /*!
        \brief
                Return the current maximum size for this window.

        \return
                Size object describing the maximum size for this window.  If using absolute co-ordinates the returned object has it's values expressed
                as screen pixels.  If using relative co-ordinates the returned object has it's values expressed as fractions of the current display size.
        */
        Size    getMaximumSize(void) const;


        /*!
        \brief
                Return the current minimum size for this window.

        \return
                Size object describing the minimum size for this window.  If using absolute co-ordinates the returned object has it's values expressed
                as screen pixels.  If using relative co-ordinates the returned object has it's values expressed as fractions of the current display size.
        */
        Size    getMinimumSize(void) const;


        /*!
        \brief
                Return a pointer to the mouse cursor image to use when the mouse is within this window.

        \return
                Pointer to the mouse cursor image that will be used when the mouse enters this window.  May return NULL indicating no cursor.
        */
        const Image*    getMouseCursor(void) const;


        /*!
        \brief
                Return the window area rect in relative metrics.

        \return
                Rect object describing this windows area, relative to the parent window, in parent relative metrics.
        */
        Rect    getRelativeRect(void) const                             {return d_rel_area;}


        /*!
        \brief
                Return the window position in relative metrics.

        \return
                Point object describing this windows position, relative to the parent window, in parent relative metrics.
        */
        Point   getRelativePosition(void) const                 {return d_rel_area.getPosition();}


        /*!
        \brief
                Return the window X position in relative metrics.

        \return
                float value describing this windows X position, relative to the parent window, in parent relative metrics.
        */
        float   getRelativeXPosition(void) const                {return d_rel_area.d_left;}


        /*!
        \brief
                Return the window Y position in relative metrics.

        \return
                float value describing this windows Y position, relative to the parent window, in parent relative metrics.
        */
        float   getRelativeYPosition(void) const                {return d_rel_area.d_top;}


        /*!
        \brief
                Return the window size in relative metrics.

        \return
                Size object describing this windows size in parent relative metrics.
        */
        Size    getRelativeSize(void) const                             {return d_rel_area.getSize();}


        /*!
        \brief
                Return the window width in relative metrics.

        \return
                float value describing this windows width in parent relative metrics.
        */
        float   getRelativeWidth(void) const                    {return d_rel_area.getWidth();}


        /*!
        \brief
                Return the window height in relative metrics.

        \return
                float value describing this windows height in parent relative metrics.
        */
        float   getRelativeHeight(void) const                   {return d_rel_area.getHeight();}


        /*!
        \brief
                Return the window area rect in absolute metrics.

        \return
                Rect object describing this windows area, relative to the parent window, in absolute metrics
        */
        Rect    getAbsoluteRect(void) const                             {return d_abs_area;}


        /*!
        \brief
                Return the window position in absolute metrics.

        \return
                Point object describing this windows position, relative to the parent window, in absolute metrics.
        */
        Point   getAbsolutePosition(void) const                 {return d_abs_area.getPosition();}


        /*!
        \brief
                Return the window X position in absolute metrics.

        \return
                float value describing this windows X position, relative to the parent window, in absolute metrics.
        */
        float   getAbsoluteXPosition(void) const                {return d_abs_area.d_left;}


        /*!
        \brief
                Return the window Y position in absolute metrics.

        \return
                float value describing this windows Y position, relative to the parent window, in absolute metrics.
        */
        float   getAbsoluteYPosition(void) const                {return d_abs_area.d_top;}


        /*!
        \brief
                Return the window size in absolute metrics.

        \return
                Size object describing this windows size in absolute metrics.
        */
        Size    getAbsoluteSize(void) const                             {return d_abs_area.getSize();}


        /*!
        \brief
                Return the window width in absolute metrics.

        \return
                float value describing this windows width in absolute metrics.
        */
        float   getAbsoluteWidth(void) const                    {return d_abs_area.getWidth();}


        /*!
        \brief
                Return the window height in absolute metrics.

        \return
        float value describing this windows height in absolute metrics.
        */
        float   getAbsoluteHeight(void) const                   {return d_abs_area.getHeight();}


        /*!
        \brief
                Return the user data set for this Window.

                Each Window can have some client assigned data attached to it, this data is not used by the GUI system
                in any way.  Interpretation of the data is entirely application specific.

        \return
                pointer to the user data that is currently set for this window.
        */
        void*   getUserData(void) const                 {return d_userData;}


        /*!
        \brief
                return the x position of the window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                float value that specifies the x position of the Window relative to it's parent, using the specified MetricsMode.
        */
        float   getXPosition(MetricsMode mode) const;


        /*!
        \brief
                return the y position of the window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                float value that specifies the y position of the Window relative to it's parent,  using the specified MetricsMode.
        */
        float   getYPosition(MetricsMode mode) const;


        /*!
        \brief
                return the position of the window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                Point object that describes the position of the Window relative to it's parent, using the specified MetricsMode.
        */
        Point   getPosition(MetricsMode mode) const;


        /*!
        \brief
                return the width of the Window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                float value that specifies the width of the Window using the specified MetricsMode.
        */
        float   getWidth(MetricsMode mode) const;


        /*!
        \brief
                return the height of the Window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                float value that specifies the height of the Window using the specified MetricsMode.
        */
        float   getHeight(MetricsMode mode) const;


        /*!
        \brief
                return the size of the Window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                Size object that describes the dimensions of the Window using the specified MetricsMode.
        */
        Size    getSize(MetricsMode mode) const;


        /*!
        \brief
                return a Rect object that describes the Window area using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \return
                Rect object that describes the area covered by the Window using the specified MetricsMode.
        */
        Rect    getRect(MetricsMode mode) const;


        /*!
        \brief
                Return whether this window is set to restore old input capture when it loses input capture.

                This is only really useful for certain sub-components for widget writers.

        \return
                - true if the window will restore the previous capture window when it loses input capture.
                - false if the window will set the capture window to NULL when it loses input capture (this is the default behaviour).
        */
        bool    restoresOldCapture(void) const          {return d_restoreOldCapture;}


        /*!
        \brief
                Return whether z-order changes are enabled or disabled for this Window.

        \return
                - true if z-order changes are enabled for this window.  moveToFront/moveToBack work normally as expected.
                - false: z-order changes are disabled for this window.  moveToFront/moveToBack are ignored for this window.
        */
        bool    isZOrderingEnabled(void) const;


    /*!
    \brief
        Return whether this window will receive multi-click events or multiple 'down' events instead.

    \return
        - true if the Window will receive double-click and triple-click events.
        - false if the Window will receive multiple mouse button down events instead of double/triple click events.
    */
    bool    wantsMultiClickEvents(void) const;


    /*!
    \brief
        Return whether mouse button down event autorepeat is enabled for this window.

    \return
        - true if autorepeat of mouse button down events is enabled for this window.
        - false if autorepeat of mouse button down events is not enabled for this window.
    */
    bool    isMouseAutoRepeatEnabled(void) const;


    /*!
    \brief
        Return the current auto-repeat delay setting for this window.

    \return
        float value indicating the delay, in seconds, defore the first repeat mouse button down event will be triggered when autorepeat is enabled.
    */
    float   getAutoRepeatDelay(void) const;

    
    /*!
    \brief
        Return the current auto-repeat rate setting for this window.

    \return
        float value indicating the rate, in seconds, at which repeat mouse button down events will be generated after the initial delay has expired.
    */
    float   getAutoRepeatRate(void) const;


    /*!
    \brief
        Return whether the window wants inputs passed to its attached
        child windows when the window has inputs captured.

    \return
        - true if System should pass captured input events to child windows.
        - false if System should pass captured input events to this window only.
    */
    bool    distributesCapturedInputs(void) const;


    /*!
    \brief
        Return whether this Window is using the system default Tooltip for its Tooltip window.

    \return
        - true if the Window will use the system default tooltip.
        - false if the window has a custom Tooltip object.
    */
    bool isUsingDefaultTooltip(void) const;

    /*!
    \brief
        Return a pointer to the Tooltip object used by this Window.  The value returned may
        point to the system default Tooltip, a custom Window specific Tooltip, or be NULL.

    \return
        Pointer to a Tooltip based object, or NULL.
    */
    Tooltip* getTooltip(void) const;

    /*!
    \brief
        Return the custom tooltip type.

    \return
        String object holding the current custom tooltip window type, or an empty string if no custom tooltip is set.
     */
    String getTooltipType(void) const;

    /*!
    \brief
        Return the current tooltip text set for this Window.

    \return
        String object holding the current tooltip text set for this window.
     */
    const String& getTooltipText(void) const;

    /*!
    \brief
        Return whether this window inherits Tooltip text from its parent when its own tooltip text is not set.

    \return
        - true if the window inherits tooltip text from its parent when its own text is not set.
        - false if the window does not inherit tooltip text from its parent (and shows no tooltip when no text is set).
     */
    bool inheritsTooltipText(void) const;

    /*!
    \brief
        Return whether this window will rise to the top of the z-order when clicked with the left mouse button.

    \return
        - true if the window will come to the top of other windows when the left mouse button is pushed within its area.
        - false if the window does not change z-order position when the left mouse button is pushed within its area.
     */
    bool isRiseOnClickEnabled(void) const   { return d_riseOnClick; }

        /*!
        \brief
                Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.

        \param class_name
                The class name that is to be checked.

        \return
                true if this window was inherited from \a class_name. false if not.
        */
        bool testClassName(const String& class_name) const              {return testClassName_impl(class_name);}

    /*************************************************************************
                Manipulator functions
        *************************************************************************/
        /*!
        \brief
                Initialises the Window based object ready for use.

        \note
                This must be called for every window created.  Normally this is handled automatically by the WindowFactory for each Window type.

        \return
                Nothing
        */
        virtual void    initialise(void) {}


        /*!
        \brief
                Set whether or not this Window will automatically be destroyed when its parent Window is destroyed.

        \param setting
                set to true to have the Window auto-destroyed when its parent is destroyed (default), or false to have the Window
                remain after its parent is destroyed.

        \return
                Nothing
        */
        void    setDestroyedByParent(bool setting);


        /*!
        \brief
                Set whether this window is always on top, or not.

        \param setting
                true to have the Window appear on top of all other non always on top windows, or false to allow the window to be covered by other windows.

        \return
                Nothing
        */
        void    setAlwaysOnTop(bool setting);


        /*!
        \brief
                Set whether this window is enabled or disabled.  A disabled window normally can not be interacted with, and may have different rendering.

        \param setting
                true to enable the Window, and false to disable the Window.

        \return
                Nothing
        */
        void    setEnabled(bool setting);


        /*!
        \brief
                enable the Window to allow interaction.

        \return
                Nothing
        */
        void    enable(void)            {setEnabled(true);}


        /*!
        \brief
                disable the Window to prevent interaction.

        \return
                Nothing
        */
        void    disable(void)           {setEnabled(false);}


        /*!
        \brief
                Set whether the Window is visible or hidden.

        \param setting
                true to make the Window visible, or false to make the Window hidden

        \return
                Nothing
        */
        void    setVisible(bool setting);


        /*!
        \brief
                show the Window

        \return
                Nothing
        */
        void    show(void)                      {setVisible(true);}


        /*!
        \brief
                hide the Window.

        \return 
                Nothing
        */
        void    hide(void)                      {setVisible(false);}


        /*!
        \brief
                Activate the Window giving it input focus and bringing it to the top of all non always-on-top Windows.

        \return
                Nothing
        */
        void    activate(void);


        /*!
        \brief
                Deactivate the window.  No further inputs will be received by the window until it is re-activated either programmatically or
                by the user interacting with the gui.
        
        \return
                Nothing.
        */
        void    deactivate(void);


        /*!
        \brief
                Set whether this Window will be clipped by its parent window(s).

        \param setting
                true to have the Window clipped so that rendering is constrained to within the area of its parent(s), or false to have rendering constrained
                to the screen only.

        \return
                Nothing
        */
        void    setClippedByParent(bool setting);
        

        /*!
        \brief
                Set the current ID for the Window.

        \param ID
                Client assigned ID code for this Window.  The GUI system assigns no meaning to any IDs, they are a device purely for client code usage.

        \return
                Nothing
        */
        void    setID(uint ID);


        /*!
        \brief
                Set the current text string for the Window.

        \param text
                String object containing the text that is to be set as the Window text.

        \return
                Nothing
        */
        void    setText(const String& text);


        /*!
        \brief
                Set the current width of the Window.  Interpretation of the input value \a width is dependant upon the current metrics system set for the Window.

        \param width
                float value that specifies the new width for the window, in units consistent with whatever metrics mode is in operation.

        \return
                Nothing
        */
        void    setWidth(float width);


        /*!
        \brief
                Set the current height of the Window.  Interpretation of the input value \a height is dependant upon the current metrics system set for the Window.

        \param height
                float value that specifies the new height for the window, in units consistent with whatever metrics mode is in operation.

        \return
                Nothing
        */
        void    setHeight(float height);


        /*!
        \brief
                Set the current size of the Window.  Interpretation of the input value \a size is dependant upon the current metrics system set for the Window.

        \param size
                Size object that describes the new dimensions for the window, in units consistent with whatever metrics mode is in operation.

        \return
                Nothing
        */
        void    setSize(const Size& size);


        /*!
        \brief
                Set the current 'x' position of the Window.  Interpretation of the input value \a x is dependant upon the current metrics system set for the Window.

        \param x
                float value that specifies the new x postion of the Window, in units consistent with the current metrics mode.

        \return
                Nothing
        */
        void    setXPosition(float x);


        /*!
        \brief
                Set the current 'y' position of the Window.  Interpretation of the input value \a y is dependant upon the current metrics system set for the Window.

        \param y
                float value that specifies the new y postion of the Window, in units consistent with the current metrics mode.

        \return
                Nothing
        */
        void    setYPosition(float y);


        /*!
        \brief
                Set the current position of the Window.  Interpretation of the input value \a position is dependant upon the current metrics system set for the Window.

        \param position
                Point object that describes the new postion of the Window, in units consistent with the current metrics mode.

        \return
                Nothing
        */
        void    setPosition(const Point& position);


        /*!
        \brief
                Set the current area for the Window, this allows for setting of position and size at the same time.  
                Interpretation of the input value \a area is dependant upon the current metrics system set for the Window.

        \param area
                Rect object that describes the new area for Window, in units consistent with the current metrics mode.

        \return
                Nothing
        */
        void    setAreaRect(const Rect& area);

        
        /*!
        \brief
                Set the font used by this Window.

        \param font
                Pointer to the Font object to be used by this Window.  If \a font is NULL, the default font will be used.

        \return
                Nothing
        */
        void    setFont(const Font* font);


        /*!
        \brief
                Set the font used by this Window.

        \param name
                String object holding the name of the Font object to be used by this Window.  If \a name == "", the default font will be used.

        \return
                Nothing

        \exception UnknownObjectException       thrown if the specified Font is unknown within the system.
        */
        void    setFont(const String& name);


        /*!
        \brief
                Add the named Window as a child of this Window.  If the Window \a name is already attached to a Window, it is detached before
                being added to this Window.

        \param name
                String object holding the name of the Window to be added.

        \return
                Nothing.

        \exception UnknownObjectException       thrown if no Window named \a name exists.
        \exception InvalidRequestException      thrown if Window \a name is an ancestor of this Window, to prevent cyclic Window structures.
        */
        void    addChildWindow(const String& name);


        /*!
        \brief
                Add the specified Window as a child of this Window.  If the Window \a window is already attached to a Window, it is detached before
                being added to this Window.

        \param window
                Pointer to the Window object to be added.

        \return
                Nothing

        \exception InvalidRequestException      thrown if Window \a window is an ancestor of this Window, to prevent cyclic Window structures.
        */
        void    addChildWindow(Window* window);


        /*!
        \brief
                Remove the named Window from this windows child list.

        \param name
                String object holding the name of the Window to be removed.  If the Window specified is not attached to this Window, nothing happens.

        \return
                Nothing.
        */
        void    removeChildWindow(const String& name);


        /*!
        \brief
                Remove the specified Window form this windows child list.

        \param window
                Pointer to the Window object to be removed.  If the \a window is not attached to this Window, then nothing happens.

        \return
                Nothing.
        */
        void    removeChildWindow(Window* window);


        /*!
        \brief
                Remove the first child Window with the specified ID.  If there is more than one attached Window objects with the specified ID, only the fist
                one encountered will be removed.

        \param ID
                ID number assigned to the Window to be removed.  If no Window with ID code \a ID is attached, nothing happens.

        \return
                Nothing.
        */
        void    removeChildWindow(uint ID);


        /*!
        \brief
                Move the Window to the top of the z order.

                - If the Window is a non always-on-top window it is moved the the top of all other non always-on-top sibling windows, and the process
                        repeated for all ancestors.
                - If the Window is an always-on-top window it is moved to the of of all sibling Windows, and the process repeated for all ancestors.

        \return
                Nothing
        */
        void    moveToFront();


        /*!
        \brief
                Move the Window to the bottom of the Z order.

                - If the window is non always-on-top the Window is sent to the very bottom of its sibling windows and the process repeated for all ancestors.
                - If the window is always-on-top, the Window is sent to the bottom of all sibling always-on-top windows and the process repeated for all ancestors.

        \return
                Nothing
        */
        void    moveToBack();


        /*!
        \brief
                Captures input to this window

        \return
                - true if input was successfully captured to this window.
                - false if input could not be captured to this window (maybe because the window is not active).
        */
        bool    captureInput(void);


        /*!
        \brief
                Releases input capture from this Window.  If this Window does not have inputs captured, nothing happens.

        \return
                Nothing
        */
        void    releaseInput(void);


        /*!
        \brief
                Set whether this window will remember and restore the previous window that had inputs captured.

        \param setting
                - true: The window will remember and restore the previous capture window.  The CaptureLost event is not fired
                  on the previous window when this window steals input capture.  When this window releases capture, the old capture
                  window is silently restored.

                - false: Input capture works as normal, each window losing capture is signalled via CaptureLost, and upon the final
                  release of capture, no previous setting is restored (this is the default 'normal' behaviour).

        \return
                Nothing
        */
        void    setRestoreCapture(bool setting);


        /*!
        \brief
                Set the current alpha value for this window.

        \note
                The alpha value set for any given window may or may not be the final alpha value that is used when rendering.  All window
                objects, by default, inherit alpha from thier parent window(s) - this will blend child windows, relatively, down the line of
                inheritance.  This behaviour can be overridden via the setInheritsAlpha() method.  To return the true alpha value that will be
                applied when rendering, use the getEffectiveAlpha() method.

        \param alpha
                The new alpha value for the window.  Value should be between 0.0f and 1.0f.

        \return
                Nothing
        */
        void    setAlpha(float alpha);


        /*!
        \brief
                Sets whether this Window will inherit alpha from its parent windows.

        \param setting
                true if the Window should use inherited alpha, or false if the Window should have an independant alpha value.

        \return
                Nothing
        */
        void    setInheritsAlpha(bool setting);


        /*!
        \brief
                Signal the System object to redraw (at least) this Window on the next render cycle.

        \return
                Nothing
        */
        void    requestRedraw(void) const;


        /*!
        \brief
                set the current metrics mode employed by the Window

        \param mode
                One of the values of the MectricsMode enumerated type, that describes the metrics mode to be used by the Window.

        \return
                Nothing
        */
        void setMetricsMode(MetricsMode mode);


        /*!
        \brief
                Set the minimum size for this window.

        \param sz
                Size object describing the minimum size for the window.  For absolute metrics, the Size values are in screen pixels,
                for relative metrics the Size values are relative to the display size.
        */
        void    setMinimumSize(const Size& sz);


        /*!
        \brief
                Set the maximum size for this window.

        \param sz
                Size object describing the maximum size for the window.  For absolute metrics, the Size values are in screen pixels,
                for relative metrics the Size values are relative to the display size.
        */
        void    setMaximumSize(const Size& sz);


        /*!
        \brief
                Set the mouse cursor image to be used when the mouse enters this window.

        \param image
                Pointer to the Image object to use as the mouse cursor image when the mouse enters the area for this Window.

        \return
                Nothing.
        */
        void    setMouseCursor(const Image* image)              {d_mouseCursor = image;}


        /*!
        \brief
                Set the mouse cursor image to be used when the mouse enters this window.

        \param image
                One of the MouseCursorImage enumerated values.

        \return
                Nothing.
        */
        void    setMouseCursor(MouseCursorImage image)          {d_mouseCursor = (const Image*)image;}


        /*!
        \brief
                Set the mouse cursor image to be used when the mouse enters this window.

        \param imageset
                String object that contains the name of the Imageset that contains the image to be used.

        \param image_name
                String object that contains the name of the Image on \a imageset that is to be used.

        \return
                Nothing.

        \exception UnknownObjectException       thrown if \a imageset is not known, or if \a imageset contains no Image named \a image_name.
        */
        void    setMouseCursor(const String& imageset, const String& image_name);


        /*!
        \brief
                Set the user data set for this Window.

                Each Window can have some client assigned data attached to it, this data is not used by the GUI system
                in any way.  Interpretation of the data is entirely application specific.

        \param user_data
                pointer to the user data that is to be set for this window.

        \return
                Nothing.
        */
        void    setUserData(void* user_data)            {d_userData = user_data;}


        /*!
        \brief
                set the x position of the window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param x
                float value that specifies the x position of the Window relative to it's parent, using the specified MetricsMode.

        \return
                Nothing.
        */
        void    setXPosition(MetricsMode mode, float x);


        /*!
        \brief
                set the y position of the window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param y
                float value that specifies the y position of the Window relative to it's parent,  using the specified MetricsMode.

        \return
                Nothing.
        */
        void    setYPosition(MetricsMode mode, float y);


        /*!
        \brief
                set the position of the window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param position
                Point object that describes the position of the Window relative to it's parent, using the specified MetricsMode.

        \return
                Nothing
        */
        void    setPosition(MetricsMode mode, const Point& position);


        /*!
        \brief
                set the width of the Window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param width
                float value that specifies the width of the Window using the specified MetricsMode.

        \return
                Nothing.
        */
        void    setWidth(MetricsMode mode, float width);


        /*!
        \brief
                set the height of the Window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param height
                float value that specifies the height of the Window using the specified MetricsMode.

        \return
                Nothing.
        */
        void    setHeight(MetricsMode mode, float height);


        /*!
        \brief
                set the size of the Window using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param size
                Size object that describes the dimensions of the Window using the specified MetricsMode.

        \return
                Nothing.
        */
        void    setSize(MetricsMode mode, const Size& size);


        /*!
        \brief
                set the Rect that describes the Window area using the specified metrics system.

        \param mode
                One of the MetricsMode enumerated values specifying the metrics system to be used for the return value.

        \param area
                Rect object that describes the area to be covered by the Window using the specified MetricsMode.

        \return
                Nothing.
        */
        void    setRect(MetricsMode mode, const Rect& area);


        /*!
        \brief
                Set whether z-order changes are enabled or disabled for this Window.

        \param setting
                - true if z-order changes are enabled for this window.  moveToFront/moveToBack work normally as expected.
                - false: z-order changes are disabled for this window.  moveToFront/moveToBack are ignored for this window.

        \return
                Nothing.
        */
        void    setZOrderingEnabled(bool setting);


    /*!
    \brief
        Set whether this window will receive multi-click events or multiple 'down' events instead.

    \param setting
        - true if the Window will receive double-click and triple-click events.
        - false if the Window will receive multiple mouse button down events instead of double/triple click events.

    \return
        Nothing.
    */
    void setWantsMultiClickEvents(bool setting);

    
    /*!
    \brief
        Set whether mouse button down event autorepeat is enabled for this window.

    \param setting
        - true to enable autorepeat of mouse button down events.
        - false to disable autorepeat of mouse button down events.

    \return
        Nothing.
    */
    void    setMouseAutoRepeatEnabled(bool setting);


    /*!
    \brief
        Set the current auto-repeat delay setting for this window.

    \param delay
        float value indicating the delay, in seconds, defore the first repeat mouse button down event should be triggered when autorepeat is enabled.

    \return
        Nothing.
    */
    void   setAutoRepeatDelay(float delay);

    
    /*!
    \brief
        Set the current auto-repeat rate setting for this window.

    \param rate
        float value indicating the rate, in seconds, at which repeat mouse button down events should be generated after the initial delay has expired.

    \return
        Nothing.
    */
    void   setAutoRepeatRate(float rate);


    /*!
    \brief
        Set whether the window wants inputs passed to its attached
        child windows when the window has inputs captured.

    \param setting
        - true if System should pass captured input events to child windows.
        - false if System should pass captured input events to this window only.
    */
    void    setDistributesCapturedInputs(bool setting);

    /*!
    \brief
        Internal support method for drag & drop.  You do not normally call
        this directly from client code.  See the DragContainer class.
    */
    void    notifyDragDropItemEnters(DragContainer* item);

    /*!
    \brief
        Internal support method for drag & drop.  You do not normally call
        this directly from client code.  See the DragContainer class.
    */
    void    notifyDragDropItemLeaves(DragContainer* item);

    /*!
    \brief
        Internal support method for drag & drop.  You do not normally call
        this directly from client code.  See the DragContainer class.
    */
    void    notifyDragDropItemDropped(DragContainer* item);

    /*!
    \brief
        Internal destroy method which actually just adds the window and any 
        parent destructed child windows to the dead pool.

        This is virtual to allow for specialised cleanup which may be required
        in some advanced cases.  If you override this for the above reason, you
        MUST call this base class version.
        
    \note
        You never have to call this method yourself, use WindowManager to
        destroy your Window objects (which will call this for you).
    */
    virtual void    destroy(void);

    /*!
    \brief
        Set the custom Tooltip object for this Window.  This value may be NULL to indicate that the
        Window should use the system default Tooltip object.

    \param tooltip
        Pointer to a valid Tooltip based object which should be used as the tooltip for this Window, or NULL to
        indicate that the Window should use the system default Tooltip object.  Note that when passing a pointer
        to a Tooltip object, ownership of the Tooltip does not pass to this Window object.

    \return
        Nothing.
    */
    void setTooltip(Tooltip* tooltip);

    /*!
    \brief
        Set the custom Tooltip to be used by this Window by specifying a Window type.

        The Window will internally attempt to create an instance of the specified window type (which must be
        derived from the base Tooltip class).  If the Tooltip creation fails, the error is logged and the
        Window will revert to using either the existing custom Tooltip or the system default Tooltip.

    \param tooltipType
        String object holding the name of the Tooltip based Window type which should be used as the Tooltip for
        this Window.

    \return
        Nothing.
    */
    void setTooltipType(const String& tooltipType);

    /*!
    \brief
        Set the tooltip text for this window.

    \param tip
        String object holding the text to be displayed in the tooltip for this Window.

    \return
        Nothing.
    */
    void setTooltipText(const String& tip);

        /*!
    \brief
        Set whether this window inherits Tooltip text from its parent when its own tooltip text is not set.

    \param setting
        - true if the window should inherit tooltip text from its parent when its own text is not set.
        - false if the window should not inherit tooltip text from its parent (and so show no tooltip when no text is set).

    \return
        Nothing.
     */
    void setInheritsTooltipText(bool setting);

    /*!
    \brief
        Set whether this window will rise to the top of the z-order when clicked with the left mouse button.

    \param setting
        - true if the window should come to the top of other windows when the left mouse button is pushed within its area.
        - false if the window should not change z-order position when the left mouse button is pushed within its area.

    \return
        Nothing.
     */
    void setRiseOnClickEnabled(bool setting)    { d_riseOnClick = setting; }


    /*************************************************************************
                Co-ordinate and Size Conversion Functions
        *************************************************************************/
        /*!
        \brief
                Convert the given X co-ordinate from absolute to relative metrics.

        \param val
                X co-ordinate specified in pixels relative to this Window (so 0 is this windows left edge).

        \return
                A relative metric value that is equivalent to \a val, given the Window objects current width.
        */
        float   absoluteToRelativeX(float val) const;


        /*!
        \brief
                Convert the given Y co-ordinate from absolute to relative metrics.

        \param val
                Y co-ordinate specified in pixels relative to this Window (so 0 is this windows top edge).

        \return
                A relative metric value that is equivalent to \a val, given the Window objects current height.
        */
        float   absoluteToRelativeY(float val) const;


        /*!
        \brief
                Convert the given position from absolute to relative metrics.

        \param pt
                Point object that describes a position specified in pixels relative to this Window (so 0,0 is this windows top-left corner).

        \return
                A Point object describing a relative metric position that is equivalent to \a pt, given the Window objects current size.
        */
        Point   absoluteToRelative(const Point& pt) const;


        /*!
        \brief
                Convert the given size from absolute to relative metrics.

        \param sze
                Size object that describes a size specified in pixels.

        \return
                A Size object describing a relative metric size that is equivalent to \a sze, given the Window objects current size.
        */
        Size    absoluteToRelative(const Size& sze) const;


        /*!
        \brief
                Convert the given area from absolute to relative metrics.

        \param rect
                Rect object describing the area specified in pixels relative to this Window.

        \return
                A Rect object describing a relative metric area that is equivalent to \a rect, given the Window objects current size.
        */
        Rect    absoluteToRelative(const Rect& rect) const;


        /*!
        \brief
                Convert the given X co-ordinate from relative to absolute metrics.

        \param val
                X co-ordinate specified in relative metrics for this Window (so 0 is this windows left edge).

        \return
                An absolute metric value that is equivalent to \a val, given the Window objects current width.
        */
        float   relativeToAbsoluteX(float val) const;


        /*!
        \brief
                Convert the given Y co-ordinate from relative to absolute metrics.

        \param val
                Y co-ordinate specified in relative metrics for this Window (so 0 is this windows top edge).

        \return
                An absolute metric value that is equivalent to \a val, given the Window objects current height.
        */
        float   relativeToAbsoluteY(float val) const;


        /*!
        \brief
                Convert the given position from relative to absolute metrics.

        \param pt
                Point object describing a position specified in relative metrics for this Window (so 0,0 is this windows top-left corner).

        \return
                A Point object describing a position in absolute metric values that is equivalent to \a pt, given the Window objects current size.
        */
        Point   relativeToAbsolute(const Point& pt) const;


        /*!
        \brief
                Convert the given size from relative to absolute metrics.

        \param sze
                Size object describing a size specified in relative metrics for this Window.

        \return
                A Size object that describes a size in absolute metric values that is equivalent to \a sze, given the Window objects current size.
        */
        Size    relativeToAbsolute(const Size& sze) const;


        /*!
        \brief
                Convert the given area from relative to absolute metrics.

        \param rect
                Rect object describing the area specified in relative metrics for this Window.

        \return
                A Rect object that describes an area in absolute metric values that is equivalent to \a rect, given the Window objects current size.
        */
        Rect    relativeToAbsolute(const Rect& rect) const;


        /*!
        \brief
                Convert a window co-ordinate value, specified in whichever metrics mode is active, to a screen relative pixel co-ordinate.

        \param x
                x co-ordinate value to be converted

        \return
                float value describing a pixel screen co-ordinate that is equivalent to window co-ordinate \a x.
        */
        float   windowToScreenX(float x) const;


        /*!
        \brief
                Convert a window co-ordinate value, specified in whichever metrics mode is active, to a screen relative pixel co-ordinate.

        \param y
                y co-ordinate value to be converted

        \return
                float value describing a screen co-ordinate that is equivalent to window co-ordinate \a y.
        */
        float   windowToScreenY(float y) const;
        
        
        /*!
        \brief
                Convert a window co-ordinate position, specified in whichever metrics mode is active, to a screen relative pixel co-ordinate position.

        \param pt
                Point object describing the position to be converted

        \return
                Point object describing a screen co-ordinate position that is equivalent to window co-ordinate position \a pt.
        */
        Point   windowToScreen(const Point& pt) const;


        /*!
        \brief
                Convert a window size value, specified in whichever metrics mode is active, to a size in pixels.

        \param sze
                Size object describing the size to be converted

        \return
                Size object describing describing a size in pixels that is equivalent to the window based size \a sze.
        */
        Size    windowToScreen(const Size& sze) const;


        /*!
        \brief
                Convert a window area, specified in whichever metrics mode is active, to a screen area.

        \param rect
                Rect object describing the area to be converted

        \return
                Rect object describing a screen area that is equivalent to window area \a rect.
        */
        Rect    windowToScreen(const Rect& rect) const;


        /*!
        \brief
                Convert a screen relative pixel co-ordinate value to a window co-ordinate value, specified in whichever metrics mode is active.

        \param x
                x co-ordinate value to be converted

        \return
                float value describing a window co-ordinate value that is equivalent to screen co-ordinate \a x.
        */
        float   screenToWindowX(float x) const;


        /*!
        \brief
                Convert a screen relative pixel co-ordinate value to a window co-ordinate value, specified in whichever metrics mode is active.

        \param y
                y co-ordinate value to be converted

        \return
                float value describing a window co-ordinate value that is equivalent to screen co-ordinate \a y.
        */
        float   screenToWindowY(float y) const;


        /*!
        \brief
                Convert a screen relative pixel position to a window co-ordinate position, specified in whichever metrics mode is active.

        \param pt
                Point object describing the position to be converted

        \return
                Point object describing a window co-ordinate position that is equivalent to screen co-ordinate \a x.
        */
        Point   screenToWindow(const Point& pt) const;


        /*!
        \brief
                Convert a pixel screen size to a window based size, specified in whichever metrics mode is active.

        \param sze
                Size object describing the size to be converted

        \return
                Size object describing a window based size that is equivalent to screen based size \a sze.
        */
        Size    screenToWindow(const Size& sze) const;


        /*!
        \brief
                Convert a screen area to a window area, specified in whichever metrics mode is active.

        \param rect
                Rect object describing the area to be converted

        \return
                Rect object describing a window area that is equivalent to screen area \a rect.
        */
        Rect    screenToWindow(const Rect& rect) const;


        /*************************************************************************
                Main render function.
        *************************************************************************/
        /*!
        \brief
                Causes the Window object to render itself and all of it's attached children

        \return
                Nothing
        */
        void    render(void);


        /*!
        \brief
                Cause window to update itself and any attached children.  Client code does not need to call this method; to
                ensure full, and proper updates, call the injectTimePulse methodname method provided by the System class.

        \note
                The update order is such that 'this' window is updated prior to any child windows, this is so
                that child windows that access the parent in their update code get the correct updated state.

        \param elapsed
                float value indicating the number of seconds passed since the last update.

        \return
                Nothing.
        */
        void    update(float elapsed);


protected:
        /*************************************************************************
                System object can trigger events directly
        *************************************************************************/
        friend  class System;


        /*************************************************************************
                Event trigger methods
        *************************************************************************/
        /*!
        \brief
                Handler called when the window's size changes.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onSized(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's position changes.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onMoved(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's text is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onTextChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's font is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onFontChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's alpha blend value is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onAlphaChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's client assigned ID is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onIDChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window is shown (made visible).

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onShown(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window is hidden.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onHidden(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window is enabled.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onEnabled(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window is disabled.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onDisabled(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's active metrics system is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onMetricsChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's setting for being clipped by it's parent is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onClippingChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's setting for being destroyed automatically be it's parent is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onParentDestroyChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's setting for inheriting alpha-blending is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onInheritsAlphaChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the window's always-on-top setting is changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onAlwaysOnTopChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when this window gains capture of mouse inputs.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onCaptureGained(WindowEventArgs& e);


        /*!
        \brief
                Handler called when this window loses capture of mouse inputs.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onCaptureLost(WindowEventArgs& e);


        /*!
        \brief
                Handler called when rendering for this window has started.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onRenderingStarted(WindowEventArgs& e);


        /*!
        \brief
                Handler called when rendering for this window has ended.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onRenderingEnded(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the z-order position of this window has changed.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onZChanged(WindowEventArgs& e);


        /*!
        \brief
                Handler called when this window's destruction sequence has begun.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that triggered the event.  For this
                event the trigger window is always 'this'.
        */
        virtual void    onDestructionStarted(WindowEventArgs& e);


        /*!
        \brief
                Handler called when this window has become the active window.

        \param e
                ActivationEventArgs class whose 'otherWindow' field is set to the window that previously was active, or NULL for none.
        */
        virtual void    onActivated(ActivationEventArgs& e);


        /*!
        \brief
                Handler called when this window has lost input focus and has been deactivated.

        \param e
                ActivationEventArgs object whose 'otherWindow' field is set to the window that has now become active, or NULL for none.
        */
        virtual void    onDeactivated(ActivationEventArgs& e);


        /*!
        \brief
                Handler called when this window's parent window has been resized.  If this window is the root / GUI Sheet
                window, this call will be made when the screen size changes.

        \param e
                WindowEventArgs object whose 'window' pointer field is set the the window that caused the event; this is typically either
                this window's parent window, or NULL to indicate the screen size has changed.
        */
        virtual void    onParentSized(WindowEventArgs& e);


        /*!
        \brief
                Handler called when a child window is added to this window.

        \param e
                WindowEventArgs object whose 'window' pointer field is set to the window that has been added.
        */
        virtual void    onChildAdded(WindowEventArgs& e);


        /*!
        \brief
                Handler called when a child window is removed from this window.

        \param e
                WindowEventArgs object whose 'window' pointer field is set the window that has been removed.
        */
        virtual void    onChildRemoved(WindowEventArgs& e);


        /*!
        \brief
                Handler called when the mouse cursor has entered this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseEnters(MouseEventArgs& e);


        /*!
        \brief
                Handler called when the mouse cursor has left this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseLeaves(MouseEventArgs& e);


        /*!
        \brief
                Handler called when the mouse cursor has been moved within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseMove(MouseEventArgs& e);


        /*!
        \brief
                Handler called when the mouse wheel (z-axis) position changes within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseWheel(MouseEventArgs& e);


        /*!
        \brief
                Handler called when a mouse button has been depressed within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseButtonDown(MouseEventArgs& e);


        /*!
        \brief
                Handler called when a mouse button has been released within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseButtonUp(MouseEventArgs& e);


        /*!
        \brief
                Handler called when a mouse button has been clicked (that is depressed and then released, within a specified time)
                within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseClicked(MouseEventArgs& e);


        /*!
        \brief
                Handler called when a mouse button has been double-clicked within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseDoubleClicked(MouseEventArgs& e);


        /*!
        \brief
                Handler called when a mouse button has been triple-clicked within this window's area.

        \param e
                MouseEventArgs object.  All fields are valid.
        */
        virtual void    onMouseTripleClicked(MouseEventArgs& e);


        /*!
        \brief
                Handler called when a key as been depressed while this window has input focus.

        \param e
                KeyEventArgs object whose 'scancode' field is set to the Key::Scan value representing the key that was pressed, and whose
                'sysKeys' field represents the combination of SystemKey that were active when the event was generated.
        */
        virtual void    onKeyDown(KeyEventArgs& e);


        /*!
        \brief
                Handler called when a key as been released while this window has input focus.

        \param e
                KeyEventArgs object whose 'scancode' field is set to the Key::Scan value representing the key that was released, and whose
                'sysKeys' field represents the combination of SystemKey that were active when the event was generated.  All other fields should be
                considered as 'junk'.
        */
        virtual void    onKeyUp(KeyEventArgs& e);


        /*!
        \brief
                Handler called when a character-key has been pressed while this window has input focus.

        \param e
                KeyEventArgs object whose 'codepoint' field is set to the Unicode code point (encoded as utf32) for the character typed, and whose
                'sysKeys' field represents the combination of SystemKey that were active when the event was generated.  All other fields should be
                considered as 'junk'.
        */
        virtual void    onCharacter(KeyEventArgs& e);

    /*!
    \brief
        Handler called when a DragContainer is dragged over this window.

    \param e
        DragDropEventArgs object initialised as follows:
        - window field is normaly set to point to 'this' window.
        - dragDropItem is a pointer to a DragContainer window that triggered the event.
    */
    virtual void    onDragDropItemEnters(DragDropEventArgs& e);


    /*!
    \brief
        Handler called when a DragContainer is dragged over this window.

    \param e
        DragDropEventArgs object initialised as follows:
        - window field is normaly set to point to 'this' window.
        - dragDropItem is a pointer to a DragContainer window that triggered the event.
    */
    virtual void    onDragDropItemLeaves(DragDropEventArgs& e);


    /*!
    \brief
        Handler called when a DragContainer is dragged over this window.

    \param e
        DragDropEventArgs object initialised as follows:
        - window field is normaly set to point to 'this' window.
        - dragDropItem is a pointer to a DragContainer window that triggered the event.
    */
    virtual void    onDragDropItemDropped(DragDropEventArgs& e);


        /*************************************************************************
                Implementation Functions
        *************************************************************************/
        /*!
        \brief
                Perform actual update processing for this Window.

        \param elapsed
                float value indicating the number of seconds elapsed since the last update call.

        \return
                Nothing.
        */
        virtual void    updateSelf(float elapsed);


        /*!
        \brief
                Perform the actual rendering for this Window.

        \param z
                float value specifying the base Z co-ordinate that should be used when rendering

        \return
                Nothing
        */
        virtual void    drawSelf(float z)       = 0;


        /*!
        \brief
                Return whether this window was inherited from the given class name at some point in the inheritance heirarchy.

        \param class_name
                The class name that is to be checked.

        \return
                true if this window was inherited from \a class_name. false if not.
        */
        virtual bool    testClassName_impl(const String& class_name) const
        {
                if (class_name==(const utf8*)"Window")  return true;
                return false;
        }


        /*!
        \brief
                Set the parent window for this window object.

        \param parent
                Pointer to a Window object that is to be assigned as the parent to this Window.

        \return
                Nothing
        */
        void    setParent(Window* parent);


        /*!
        \brief
                Return the pixel Width of the parent element.  This always returns a valid number.

        \return
                float value that is equal to the pixel width of this Window objects parent
        */
        float   getParentWidth(void) const;


        /*!
        \brief
                Return the pixel Height of the parent element.  This always returns a valid number.

        \return
                float value that is equal to the pixel height of this Window objects parent
        */
        float   getParentHeight(void) const;


        /*!
        \brief
                Return the pixel size of the parent element.  This always returns a valid object.

        \return
                Size object that describes the pixel dimensions of this Window objects parent
        */
        Size    getParentSize(void) const;


        /*!
        \brief
                Return a Rect object that describes, in values relative to \a window, the absolute area described by \a rect.

        \param window
                Pointer to a window object that is to be used as the base for the conversion.  If this is NULL then the size of the
                display, as returned by the renderer object, is used.

        \param rect
                Rect object describing the area, in absolute values, that is to be returned as relative values.

        \return
                Rect object that describes in values relative to \a window, the same area described as absolute values in \a rect.
        */
        Rect    absoluteToRelative_impl(const Window* window, const Rect& rect) const;
        Size    absoluteToRelative_impl(const Window* window, const Size& sz) const;
        Point   absoluteToRelative_impl(const Window* window, const Point& pt) const;
        float   absoluteToRelativeX_impl(const Window* window, float x) const;
        float   absoluteToRelativeY_impl(const Window* window, float y) const;


        /*!
        \brief
                Return a Rect object that describes, in absolute values offset from \a window, the relative area described by \a rect.

        \param window
                Pointer to a window object that is to be used as the base for the conversion.  If this is NULL then the size of the
                display, as returned by the renderer object, is used.

        \param rect
                Rect object describing the area, in relative values, that is to be returned as absolute values.

        \return
                Rect object that describes in absolute values offset from \a window, the same area described as relative values in \a rect.
        */
        Rect    relativeToAbsolute_impl(const Window* window, const Rect& rect) const;
        Size    relativeToAbsolute_impl(const Window* window, const Size& sz) const;
        Point   relativeToAbsolute_impl(const Window* window, const Point& pt) const;
        float   relativeToAbsoluteX_impl(const Window* window, float x) const;
        float   relativeToAbsoluteY_impl(const Window* window, float y) const;

        Size    getWindowSize_impl(const Window* window) const;


        /*!
        \brief
                Return the inherited metrics mode.  This is either the metrics mode of our parent, or Relative
                if we have no parent.
        */
        MetricsMode getInheritedMetricsMode(void) const;

    
    /*!
    \brief
        Fires off a repeated mouse button down event for this window.
    */
    void    generateAutoRepeatEvent(MouseButton button);


        /*************************************************************************
                Implementation Data
        *************************************************************************/
        // child stuff
        typedef std::vector<Window*>    ChildList;
        ChildList               d_children;                     //!< The list of child Window objects attached to this.

        // general data
        MetricsMode             d_metricsMode;          //!< Holds the active metrics mode for this window
        static Window*  d_captureWindow;        //!< Window that has captured inputs
        Window*                 d_oldCapture;           //!< The Window that previously had capture (used for restoreOldCapture mode)
        Window*                 d_parent;                       //!< Holds pointer to the parent window.
        const Font*             d_font;                         //!< Holds pointer to the Window objects current Font.
        String                  d_text;                         //!< Holds the text / label / caption for this Window.
        uint                    d_ID;                           //!< User ID assigned to this Window
        float                   d_alpha;                        //!< Alpha transparency setting for the Window
        Rect                    d_abs_area;                     //!< This Window objects area (pixels relative to parent)
        Rect                    d_rel_area;                     //!< This Window objects area (decimal fractions relative to parent)
        const Image*    d_mouseCursor;          //!< Holds pointer to the Window objects current mouse cursor image.
        void*                   d_userData;                     //!< Holds pointer to some user assigned data.

        // maximum and minimum sizes
        Size    d_minSize;                                      //!< current minimum size for the window (this is always stored in pixels).
        Size    d_maxSize;                                      //!< current maximum size for the window (this is always stored in pixels).

        // settings
        bool    d_enabled;                                      //!< true when Window is enabled
        bool    d_visible;                                      //!< true when Window is visible (that is it will be rendered, but may be obscured so no necesarily really visible)
        bool    d_active;                                       //!< true when Window is the active Window (receiving inputs).
        bool    d_clippedByParent;                      //!< true when Window will be clipped by parent Window area Rect.
        bool    d_destroyedByParent;            //!< true when Window will be auto-destroyed by parent.
        bool    d_alwaysOnTop;                          //!< true if Window will be drawn on top of all other Windows
        bool    d_inheritsAlpha;                        //!< true if the Window inherits alpha from the parent Window
        bool    d_restoreOldCapture;            //!< true if the Window restores capture to the previous window when it releases capture.
        bool    d_zOrderingEnabled;                     //!< true if the Window responds to z-order change requests.
    bool    d_wantsMultiClicks;         //!< true if the Window wishes to hear about multi-click mouse events.
    bool    d_distCapturedInputs;       //!< true if unhandled captured inputs should be distributed to child windows.
    bool    d_riseOnClick;              //!< True if the window should come to the front of the z order in respose to a left mouse button down event.

    // mouse button autorepeat data
    bool    d_autoRepeat;       //!< true if button will auto-repeat mouse button down events while mouse button is held down,
    float   d_repeatDelay;      //!< seconds before first repeat event is fired
    float   d_repeatRate;       //!< secons between further repeats after delay has expired.
    bool    d_repeating;        //!< implements repeating - is true after delay has elapsed,
    float   d_repeatElapsed;    //!< implements repeating - tracks time elapsed.
    MouseButton d_repeatButton; //!< Button we're tracking (implication of this is that we only support one button at a time).

    // Tooltip stuff
    String   d_tooltipText;     //!< Text string used as tip for this window.
    Tooltip* d_customTip;       //!< Possible custom Tooltip for this window.
    bool     d_weOwnTip;        //!< true if this Window created the custom Tooltip.
    bool     d_inheritsTipText; //!< true if the Window inherits tooltip text from its parent (when none set for itself).

protected:
        /*************************************************************************
                Properties for Window base class
        *************************************************************************/
        static  WindowProperties::AbsoluteHeight        d_absHeightProperty;
        static  WindowProperties::AbsoluteMaxSize       d_absMaxSizeProperty;
        static  WindowProperties::AbsoluteMinSize       d_absMinSizeProperty;
        static  WindowProperties::AbsolutePosition      d_absPositionProperty;
        static  WindowProperties::AbsoluteRect          d_absRectProperty;
        static  WindowProperties::AbsoluteSize          d_absSizeProperty;
        static  WindowProperties::AbsoluteWidth         d_absWidthProperty;
        static  WindowProperties::AbsoluteXPosition     d_absXPosProperty;
        static  WindowProperties::AbsoluteYPosition     d_absYPosProperty;
        static  WindowProperties::Alpha                         d_alphaProperty;
        static  WindowProperties::AlwaysOnTop           d_alwaysOnTopProperty;
        static  WindowProperties::ClippedByParent       d_clippedByParentProperty;
        static  WindowProperties::DestroyedByParent     d_destroyedByParentProperty;
        static  WindowProperties::Disabled                      d_disabledProperty;
        static  WindowProperties::Font                          d_fontProperty;
        static  WindowProperties::Height                        d_heightProperty;
        static  WindowProperties::ID                            d_IDProperty;
        static  WindowProperties::InheritsAlpha         d_inheritsAlphaProperty;
        static  WindowProperties::MetricsMode           d_metricsModeProperty;
        static  WindowProperties::MouseCursorImage      d_mouseCursorProperty;
        static  WindowProperties::Position                      d_positionProperty;
        static  WindowProperties::Rect                          d_rectProperty;
        static  WindowProperties::RelativeHeight        d_relHeightProperty;
        static  WindowProperties::RelativeMaxSize       d_relMaxSizeProperty;
        static  WindowProperties::RelativeMinSize       d_relMinSizeProperty;
        static  WindowProperties::RelativePosition      d_relPositionProperty;
        static  WindowProperties::RelativeRect          d_relRectProperty;
        static  WindowProperties::RelativeSize          d_relSizeProperty;
        static  WindowProperties::RelativeWidth         d_relWidthProperty;
        static  WindowProperties::RelativeXPosition     d_relXPosProperty;
        static  WindowProperties::RelativeYPosition     d_relYPosProperty;
        static  WindowProperties::RestoreOldCapture     d_restoreOldCaptureProperty;
        static  WindowProperties::Size                          d_sizeProperty;
        static  WindowProperties::Text                          d_textProperty;
        static  WindowProperties::Visible                       d_visibleProperty;
        static  WindowProperties::Width                         d_widthProperty;
        static  WindowProperties::XPosition                     d_xPosProperty;
        static  WindowProperties::YPosition                     d_yPosProperty;
        static  WindowProperties::ZOrderChangeEnabled   d_zOrderChangeProperty;
    static  WindowProperties::WantsMultiClickEvents d_wantsMultiClicksProperty;
    static  WindowProperties::MouseButtonDownAutoRepeat d_autoRepeatProperty;
    static  WindowProperties::AutoRepeatDelay   d_autoRepeatDelayProperty;
    static  WindowProperties::AutoRepeatRate    d_autoRepeatRateProperty;
    static  WindowProperties::DistributeCapturedInputs d_distInputsProperty;
    static  WindowProperties::CustomTooltipType d_tooltipTypeProperty;
    static  WindowProperties::Tooltip           d_tooltipProperty;
    static  WindowProperties::InheritsTooltipText d_inheritsTooltipProperty;
    static  WindowProperties::RiseOnClick       d_riseOnClickProperty;


        /*************************************************************************
                Private implementation functions
        *************************************************************************/
        /*!
        \brief
                Add standard CEGUI::Window events
        */
        void    addStandardEvents(void);

        /*!
        \brief
                Cleanup child windows
        */
        virtual void    cleanupChildren(void);

        /*!
        \brief
                Add given window to child list at an appropriate position
        */
        virtual void    addChild_impl(Window* wnd);

        /*!
        \brief
                Remove given window from child list
        */
        virtual void    removeChild_impl(Window* wnd);

        /*!
        \brief
                Notify 'this' and all siblings of a ZOrder change event
        */
        virtual void    onZChange_impl(void);


        /*!
        \brief
                Add standard CEGUI::Window properties.
        */
        void    addStandardProperties(void);


    /*!
    \brief
        Implements move to fron behavior.
     */
    virtual void moveToFront_impl(bool wasClicked);


    /*!
    \brief
        Implementation of rise on click functionality.
     */
    void doRiseOnClick(void);

        
        /*************************************************************************
                May not copy or assign Window objects
        *************************************************************************/
        Window(const Window& wnd) {}
        Window& operator=(const Window& wnd) {return *this;}

        /*************************************************************************
                Private implementation Data
        *************************************************************************/
        const String    d_type;                 //!< String holding the type name for the Window (is also the name of the WindowFactory that created us)
        const String    d_name;                 //!< The name of the window (GUI system unique).
};

} // End of  CEGUI namespace section


#if defined(_MSC_VER)
#       pragma warning(pop)
#endif

#endif  // end of guard _CEGUIWindow_h_