AOO410/main/slideshow/source/engine/slide/userpaintoverlay.hxx

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#ifndef INCLUDED_SLIDESHOW_USERPAINTOVERLAY_HXX
#define INCLUDED_SLIDESHOW_USERPAINTOVERLAY_HXX

#include <basegfx/polygon/b2dpolypolygon.hxx>

#include "unoview.hxx"
#include "rgbcolor.hxx"

#include <boost/utility.hpp>
#include <boost/shared_ptr.hpp>
#include <vector>

/* Definition of UserPaintOverlay class */

namespace slideshow
{
    namespace internal
    {
        class EventMultiplexer;
        struct SlideShowContext;

        class PaintOverlayHandler;
        typedef ::boost::shared_ptr< class UserPaintOverlay > UserPaintOverlaySharedPtr;
        typedef ::std::vector< ::cppcanvas::PolyPolygonSharedPtr> PolyPolygonVector;
		/** Slide overlay, which can be painted into by the user.

			This class registers itself at the EventMultiplexer,
			listening for mouse clicks and moves. When the mouse is
			dragged, a hand sketching in the selected color is shown.
		*/
		class UserPaintOverlay : private boost::noncopyable
		{
		public:
            /** Create a UserPaintOverlay

            	@param rStrokeColor
                Color to use for drawing

                @param nStrokeWidth
                Width of the stroked path
             */
            static UserPaintOverlaySharedPtr create( const RGBColor&          rStrokeColor,
                                                     double                   nStrokeWidth,
                                                     const SlideShowContext&  rContext,
                                                     const PolyPolygonVector& rPolygons,
													 bool					  bActive);
            ~UserPaintOverlay();
            PolyPolygonVector getPolygons();
            void drawPolygons();

			void update_settings( bool bUserPaintEnabled, RGBColor const& aUserPaintColor, double dUserPaintStrokeWidth );

            
		private:
			UserPaintOverlay( const RGBColor&          rStrokeColor,
                              double                   nStrokeWidth,
                              const SlideShowContext&  rContext,
                              const PolyPolygonVector& rPolygons,
							  bool					  bActive );

            ::boost::shared_ptr<PaintOverlayHandler>	mpHandler;
            EventMultiplexer&							mrMultiplexer;
		};
    }
}

#endif /* INCLUDED_SLIDESHOW_USERPAINTOVERLAY_HXX */