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_CONV_UNCLOSE_POLYGON_INCLUDED
+#define AGG_CONV_UNCLOSE_POLYGON_INCLUDED
+
+#include "agg_basics.h"
+#include "agg_vertex_iterator.h"
+
+namespace agg
+{
+    //====================================================conv_unclose_polygon
+    template<class VertexSource> class conv_unclose_polygon
+    {
+    public:
+        conv_unclose_polygon(VertexSource& vs) : m_source(&vs) {}
+
+        void set_source(VertexSource& source) { m_source = &source; }
+
+        void rewind(unsigned path_id)
+        {
+            m_source->rewind(path_id);
+        }
+
+        unsigned vertex(double* x, double* y)
+        {
+            unsigned cmd = m_source->vertex(x, y);
+            if(is_end_poly(cmd)) cmd &= ~path_flags_close;
+            return cmd;
+        }
+
+        typedef conv_unclose_polygon<VertexSource> source_type;
+        typedef vertex_iterator<source_type> iterator;
+        iterator begin(unsigned id) { return iterator(*this, id); }
+        iterator end() { return iterator(path_cmd_stop); }
+
+    private:
+        conv_unclose_polygon(const conv_unclose_polygon<VertexSource>&);
+        const conv_unclose_polygon<VertexSource>& 
+            operator = (const conv_unclose_polygon<VertexSource>&);
+
+        VertexSource* m_source;
+    };
+
+}
+
+#endif