Repo created

3party/agg/agg_vcgen_stroke.h

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+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.4
+// Copyright (C) 2002-2005 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_VCGEN_STROKE_INCLUDED
+#define AGG_VCGEN_STROKE_INCLUDED
+
+#include "agg_math_stroke.h"
+
+
+namespace agg
+{
+
+    //============================================================vcgen_stroke
+    //
+    // See Implementation agg_vcgen_stroke.cpp
+    // Stroke generator
+    //
+    //------------------------------------------------------------------------
+    class vcgen_stroke
+    {
+        enum status_e
+        {
+            initial,
+            ready,
+            cap1,
+            cap2,
+            outline1,
+            close_first,
+            outline2,
+            out_vertices,
+            end_poly1,
+            end_poly2,
+            stop
+        };
+
+    public:
+        typedef vertex_sequence<vertex_dist, 6> vertex_storage;
+        typedef pod_bvector<point_d, 6>         coord_storage;
+
+        vcgen_stroke();
+
+        void line_cap(line_cap_e lc)     { m_stroker.line_cap(lc); }
+        void line_join(line_join_e lj)   { m_stroker.line_join(lj); }
+        void inner_join(inner_join_e ij) { m_stroker.inner_join(ij); }
+
+        line_cap_e   line_cap()   const { return m_stroker.line_cap(); }
+        line_join_e  line_join()  const { return m_stroker.line_join(); }
+        inner_join_e inner_join() const { return m_stroker.inner_join(); }
+
+        void width(double w) { m_stroker.width(w); }
+        void miter_limit(double ml) { m_stroker.miter_limit(ml); }
+        void miter_limit_theta(double t) { m_stroker.miter_limit_theta(t); }
+        void inner_miter_limit(double ml) { m_stroker.inner_miter_limit(ml); }
+        void approximation_scale(double as) { m_stroker.approximation_scale(as); }
+
+        double width() const { return m_stroker.width(); }
+        double miter_limit() const { return m_stroker.miter_limit(); }
+        double inner_miter_limit() const { return m_stroker.inner_miter_limit(); }
+        double approximation_scale() const { return m_stroker.approximation_scale(); }
+
+        void shorten(double s) { m_shorten = s; }
+        double shorten() const { return m_shorten; }
+
+        // Vertex Generator Interface
+        void remove_all();
+        void add_vertex(double x, double y, unsigned cmd);
+
+        // Vertex Source Interface
+        void     rewind(unsigned path_id);
+        unsigned vertex(double* x, double* y);
+
+    private:
+        vcgen_stroke(const vcgen_stroke&);
+        const vcgen_stroke& operator = (const vcgen_stroke&);
+
+        math_stroke<coord_storage> m_stroker;
+        vertex_storage             m_src_vertices;
+        coord_storage              m_out_vertices;
+        double                     m_shorten;
+        unsigned                   m_closed;
+        status_e                   m_status;
+        status_e                   m_prev_status;
+        unsigned                   m_src_vertex;
+        unsigned                   m_out_vertex;
+    };
+
+
+}
+
+#endif