wxOil/fuzzclip.h

   1 // $Id: fuzzclip.h 751 2006-03-31 15:43:49Z alex $
   2 /* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
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   5                Xara LX, a vector drawing and manipulation program.
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  97  */
  98 // This is a Gavin File that contains the code to clip paths before rendering them to allow
  99 // much higher levels of zoom.
 100
 101
 102 /************************************************************************************************
 103
 104 >       INT32 FuzzyClip(        PPOINT IPoints, PBYTE ITypes, UINT32 ILength, BOOL IsClosed,
 105                                         RECT *InnerRect, RECT *OuterRect, PPOINT pOPoints,
 106                                         PBYTE pOTypes, UINT32 pOMaxLength);
 107
 108         Inputs:         IPoints,ITypes,ILength  - Source path
 109                                 IsClosed                                - Source path and output path should be closed.
 110                                 InnerRect                               - Inner rectangle to which to clip.
 111                                 OuterRect                               - Outer rectangle to which to clip.
 112         Outputs:        pOPoints,pOTypes                - Outut path.
 113                                 pOMaxLength                             - Maximum length of output path.
 114         Returns:        Returns the length of the path, or -1 if an error occurs.
 115                                 (ie output path not large enough).
 116         Purpose:        Note that InnerRect should be slightly larger than the window for which the
 117                                 clipping is being performed. This ensures that any slight errors won't be
 118                                 visible at the window edges.
 119                                 Note also that OuterRect must be over 3 times the width of InnerRect,
 120                                 with InnerRect centred within it.
 121                                 No errors should occur as the path is expected to be in a legal state.
 122
 123 ************************************************************************************************/
 124
 125 size_t FuzzyClip(
 126                 PPOINT  IPoints,
 127                 PBYTE   ITypes,
 128                 size_t  ILength,
 129                 BOOL    IsClosed,
 130                 RECT    *InnerRect,
 131                 RECT    *OuterRect,
 132                 PPOINT  pOPoints,
 133                 PBYTE   pOTypes,
 134                 size_t  pOMaxLength
 135         ) ;
 136
 137 /////////////////////////////////////////////////////////////////////////////////////////////////