xref: /aoo41x/main/cppcanvas/source/mtfrenderer/textaction.hxx (revision cdf0e10c)

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#ifndef _CPPCANVAS_TEXTACTION_HXX
#define _CPPCANVAS_TEXTACTION_HXX

#include <com/sun/star/uno/Sequence.hxx>

#include <action.hxx>
#include <cppcanvas/canvas.hxx>
#include <cppcanvas/renderer.hxx>
#include <tools/poly.hxx>
#include <tools/gen.hxx>

class VirtualDevice;
class Point;
class Color;
class String;


/* Definition of internal::TextActionFactory class */

namespace cppcanvas
{
    namespace internal
    {
        struct OutDevState;

        /** Creates encapsulated converters between GDIMetaFile and
            XCanvas. The Canvas argument is deliberately placed at the
            constructor, to force reconstruction of this object for a
            new canvas. This considerably eases internal state
            handling, since a lot of the internal state (e.g. fonts,
            text layout) is Canvas-dependent.
         */
        class TextActionFactory
        {
        public:
            /** Create text action, optionally shadow/relief effect

            	Note that this method accepts all coordinates in
            	logical coordinates.

            	@param pDXArray
                Pointer to array of logical character offsets (or NULL)

            	@param bSubsettable
                When this parameter is set to true, the generated
                action might consume slightly more memory, but is
                subsettable (Action::render( Subset ) works on
                characters)
             */
            static ActionSharedPtr createTextAction( const ::Point&					rStartPoint,
                                                     const ::Size&					rReliefOffset,
                                                     const ::Color&					rReliefColor,
                                                     const ::Size&					rShadowOffset,
                                                     const ::Color&					rShadowColor,
                                                     const ::String& 				rText,
                                                     sal_Int32 						nStartPos,
                                                     sal_Int32 						nLen,
                                                     const sal_Int32*				pDXArray,
                                                     VirtualDevice&					rVDev,
                                                     const CanvasSharedPtr&			rCanvas,
                                                     const OutDevState& 			rState,
                                                     const Renderer::Parameters& 	rParms,
                                                     bool							bSubsettable );

        private:
            // static factory, disable big four
            TextActionFactory();
            ~TextActionFactory();
            TextActionFactory(const TextActionFactory&);
            TextActionFactory& operator=( const TextActionFactory& );
        };
    }
}

#endif /* _CPPCANVAS_TEXTACTION_HXX */