OSDLBackBufferedWidget.h

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#ifndef OSDL_BACK_BUFFERED_WIDGET_H_
#define OSDL_BACK_BUFFERED_WIDGET_H_


#include "OSDLWidget.h"          // for inheritance
#include "OSDLVideoTypes.h"      // for Length, etc.


#include <string>



namespace OSDL
{

    namespace Video
    {


        // A BackBufferedWidget is and owns a Surface :
        class Surface ;
        
        
        namespace TwoDimensional
        {

    
            // To locate a widget in its container :
            class Point2D ;
            
            
            

            class OSDL_DLL BackBufferedWidget : public Widget
            {
            
                    
                public:
                        
            
                     BackBufferedWidget( 
                        Surface & container, 
                        const Point2D & relativePosition,
                        Length width, 
                        Length height, 
                        BaseColorMode baseColorMode, 
                        Pixels::ColorDefinition baseColor, 
                        const std::string & title = "",
                        bool minMaximizable = true, 
                        bool draggable = true, 
                        bool wrappable = true, 
                        bool closable = true ) 
                            throw( VideoException ) ;
                                
                            
                     virtual ~BackBufferedWidget() throw() ;
                        
                            
                    virtual void resize( Length newWidth, Length newHeight, 
                        bool ignored = false ) throw() ;
                                         

                    virtual void setBaseColorMode( 
                            BaseColorMode newBaseColorMode,
                            Pixels::ColorDefinition newBaseColor ) 
                        throw( VideoException ) ;
                                                


                    virtual void redraw() throw() ;

                                            
                    virtual void redrawInternal() throw() ;
            
            
                    virtual void redrawBackBuffer() throw() ;
                    

                    Surface & getWidgetRenderTarget() throw() ; 

                    
                    virtual const std::string toString( 
                            Ceylan::VerbosityLevels level = Ceylan::high )
                        const throw() ;
                
                    
                        
                                            
                protected:
                                            
                    
                    virtual void setBackBufferRedrawState( 
                        bool needsToBeRedrawn ) throw() ;

                
                    virtual bool getBackBufferRedrawState() const throw() ;


                    Surface * _overallSurface ;
                    
                    
                    
                    
                private:    



                    bool _needsBackBufferRedraw ;



                    explicit BackBufferedWidget( 
                        const BackBufferedWidget & source ) throw() ;
            
            
                    BackBufferedWidget & operator = ( 
                        const BackBufferedWidget & source ) throw() ;
                    
                    
            } ;         
                                            
        }
    
    }

}               


#endif // OSDL_BACK_BUFFERED_WIDGET_H_

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