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00019 #ifndef __CS_IGEOM_CLIP2D_H__
00020 #define __CS_IGEOM_CLIP2D_H__
00021
00030 #include "csutil/scf_interface.h"
00031
00032 class csBox2;
00033 class csVector2;
00034
00036 #define MAX_OUTPUT_VERTICES 64
00037
00046 enum
00047 {
00049 CS_CLIP_OUTSIDE = 0,
00051 CS_CLIP_CLIPPED = 1,
00053 CS_CLIP_INSIDE = 2
00054 };
00065 struct csVertexStatus
00066 {
00071 unsigned char Type;
00073 size_t Vertex;
00075 float Pos;
00076 };
00077
00079 enum
00080 {
00082 CS_VERTEX_ORIGINAL = 0,
00084 CS_VERTEX_ONEDGE = 1,
00086 CS_VERTEX_INSIDE = 2
00087 };
00094 struct iClipper2D : public virtual iBase
00095 {
00096 SCF_INTERFACE(iClipper2D, 2, 0, 0);
00102 virtual uint8 Clip (const csVector2 *InPolygon, size_t InCount,
00103 csVector2 *OutPolygon, size_t &OutCount) = 0;
00104
00113 virtual uint8 Clip (const csVector2 *InPolygon, size_t InCount,
00114 csVector2 *OutPolygon, size_t &OutCount, csBox2 &BoundingBox) = 0;
00115
00125 virtual uint8 Clip (const csVector2 *InPolygon, size_t InCount,
00126 csVector2 *OutPolygon, size_t &OutCount, csVertexStatus *OutStatus) = 0;
00127
00132 virtual uint8 ClipInPlace (csVector2 *InPolygon, size_t &InOutCount,
00133 csBox2 &BoundingBox) = 0;
00134
00142 virtual int ClassifyBox (const csBox2 &box) = 0;
00143
00145 virtual bool IsInside (const csVector2& v) = 0;
00146
00148 virtual size_t GetVertexCount () = 0;
00149
00151 virtual const csVector2 *GetClipPoly () = 0;
00152
00154 enum ClipperType
00155 {
00157 clipperPoly,
00159 clipperBox
00160 };
00164 virtual ClipperType GetClipperType() const = 0;
00165 };
00166
00169 #endif // __CS_IGEOM_CLIP2D_H__