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//----------------------------------------------------------------------------
// Anti-Grain Geometry - Version 2.2
// Copyright (C) 2002-2004 Maxim Shemanarev (http://www.antigrain.com)
//
// Permission to copy, use, modify, sell and distribute this software
// is granted provided this copyright notice appears in all copies.
// This software is provided "as is" without express or implied
// warranty, and with no claim as to its suitability for any purpose.
//
//----------------------------------------------------------------------------
// Contact: mcseem@antigrain.com
// mcseemagg@yahoo.com
// http://www.antigrain.com
//----------------------------------------------------------------------------
#ifndef AGG_SPAN_PATTERN_INCLUDED
#define AGG_SPAN_PATTERN_INCLUDED
#include "agg_basics.h"
#include "agg_rendering_buffer.h"
#include "agg_span_generator.h"
namespace agg
{
//--------------------------------------------------------span_pattern
template<class ColorT, class AlphaT, class Allocator>
class span_pattern : public span_generator<ColorT, Allocator>
{
public:
typedef ColorT color_type;
typedef AlphaT alpha_type;
typedef Allocator alloc_type;
//----------------------------------------------------------------
span_pattern(alloc_type& alloc) :
span_generator<color_type, alloc_type>(alloc)
{}
//----------------------------------------------------------------
span_pattern(alloc_type& alloc,
const rendering_buffer& src,
unsigned offset_x, unsigned offset_y,
alpha_type alpha) :
span_generator<color_type, alloc_type>(alloc),
m_src(&src),
m_offset_x(offset_x),
m_offset_y(offset_y),
m_alpha(alpha)
{}
//----------------------------------------------------------------
const rendering_buffer& source_image() const { return *m_src; }
unsigned offset_x() const { return m_offset_x; }
unsigned offset_y() const { return m_offset_y; }
alpha_type alpha() const { return m_alpha; }
//----------------------------------------------------------------
void source_image(const rendering_buffer& v) { m_src = &v; }
void offset_x(unsigned v) { m_offset_x = v; }
void offset_y(unsigned v) { m_offset_y = v; }
void alpha(alpha_type v) { m_alpha = v; }
//----------------------------------------------------------------
private:
const rendering_buffer* m_src;
unsigned m_offset_x;
unsigned m_offset_y;
alpha_type m_alpha;
};
}
#endif
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