nr-filter-blend.h revision 2e4cf820d916d336c64be2568cea4f31585fadd8
#ifndef __NR_FILTER_BLEND_H__
#define __NR_FILTER_BLEND_H__
/*
* SVG feBlend renderer
*
* "This filter composites two objects together using commonly used
* imaging software blending modes. It performs a pixel-wise combination
* of two input images."
* http://www.w3.org/TR/SVG11/filters.html#feBlend
*
* Authors:
* Niko Kiirala <niko@kiirala.com>
*
* Copyright (C) 2007 authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "display/nr-filter-primitive.h"
namespace Inkscape {
namespace Filters {
enum FilterBlendMode {
BLEND_NORMAL,
BLEND_MULTIPLY,
BLEND_SCREEN,
BLEND_DARKEN,
BLEND_LIGHTEN,
// New in CSS Compositing and Blending Level 1
BLEND_OVERLAY,
BLEND_COLORDODGE,
BLEND_COLORBURN,
BLEND_HARDLIGHT,
BLEND_SOFTLIGHT,
BLEND_DIFFERENCE,
BLEND_EXCLUSION,
BLEND_HUE,
BLEND_SATURATION,
BLEND_COLOR,
BLEND_LUMINOSITY,
BLEND_ENDMODE,
};
class FilterBlend : public FilterPrimitive {
public:
FilterBlend();
static FilterPrimitive *create();
virtual ~FilterBlend();
virtual void render_cairo(FilterSlot &slot);
virtual bool can_handle_affine(Geom::Affine const &);
virtual double complexity(Geom::Affine const &ctm);
virtual bool uses_background();
virtual void set_input(int slot);
virtual void set_input(int input, int slot);
void set_mode(FilterBlendMode mode);
private:
FilterBlendMode _blend_mode;
int _input2;
};
} /* namespace Filters */
} /* namespace Inkscape */
#endif /* __NR_FILTER_BLEND_H__ */
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :