SliceRenderer.h

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// vim:set ts=4 sw=4 noet cin:

#ifndef SLICERENDERER_H_
#define SLICERENDERER_H_

#include "ARender.h"
#include "Data.h"

class SliceRenderer : public ARender {
        public:
                SliceRenderer(Data& aData);
                ~SliceRenderer();

                enum Axis {
                        AXIS_X,
                        AXIS_Y,
                        AXIS_Z
                };

                void setAxis(Axis newAxis);
                Axis getAxis() const;

                void setPosition(unsigned int aPos);
                unsigned int getPosition() const;

                unsigned int maxpos() const;

                // ARender
                virtual Color getPixelColor(unsigned int x, unsigned int y);
                virtual Size getImageSize() const;
                virtual void render(unsigned char* buffer);

        private:
                Data& mData;
                Axis mAxis;
                unsigned int mPosition;

                // OPTIMIZATION:
                // we will pass these values to getData, in this order. the indices
                // tell us which of the values is for the specified x and y.
                void calcCoords();
                unsigned int mXIndex, mYIndex, mPosIndex;
                unsigned int mCoords[3];
};

#endif

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