Initial checkin

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@9933 a95241bf-73f2-0310-859d-f6bbb57e9c96
2004-11-12 02:02:58 +00:00
parent 5344cdf47b
commit 39241fe228
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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: [email protected]
+//          [email protected]
+//          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
+