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