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134 lines
3.5 KiB
C
134 lines
3.5 KiB
C
/*
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* Copyright (C) 2007 Google (Evan Stade)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "objbase.h"
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#include "gdiplus.h"
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#include "gdiplus_private.h"
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GpStatus WINGDIPAPI GdipCreatePathIter(GpPathIterator **iterator, GpPath* path)
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{
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INT size;
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if(!iterator || !path)
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return InvalidParameter;
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size = path->pathdata.Count;
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*iterator = GdipAlloc(sizeof(GpPathIterator));
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if(!*iterator) return OutOfMemory;
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(*iterator)->pathdata.Types = GdipAlloc(size);
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(*iterator)->pathdata.Points = GdipAlloc(size * sizeof(PointF));
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memcpy((*iterator)->pathdata.Types, path->pathdata.Types, size);
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memcpy((*iterator)->pathdata.Points, path->pathdata.Points,
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size * sizeof(PointF));
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(*iterator)->pathdata.Count = size;
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(*iterator)->subpath_pos = 0;
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(*iterator)->marker_pos = 0;
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(*iterator)->pathtype_pos = 0;
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return Ok;
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}
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GpStatus WINGDIPAPI GdipDeletePathIter(GpPathIterator *iter)
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{
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if(!iter)
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return InvalidParameter;
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GdipFree(iter->pathdata.Types);
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GdipFree(iter->pathdata.Points);
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GdipFree(iter);
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return Ok;
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}
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GpStatus WINGDIPAPI GdipPathIterCopyData(GpPathIterator* iterator,
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INT* resultCount, GpPointF* points, BYTE* types, INT startIndex, INT endIndex)
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{
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if(!iterator || !types || !points)
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return InvalidParameter;
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if(endIndex > iterator->pathdata.Count - 1 || startIndex < 0 ||
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endIndex < startIndex){
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*resultCount = 0;
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return Ok;
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}
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*resultCount = endIndex - startIndex + 1;
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memcpy(types, &(iterator->pathdata.Types[startIndex]), *resultCount);
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memcpy(points, &(iterator->pathdata.Points[startIndex]),
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*resultCount * sizeof(PointF));
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return Ok;
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}
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GpStatus WINGDIPAPI GdipPathIterNextSubpath(GpPathIterator* iterator,
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INT *resultCount, INT* startIndex, INT* endIndex, BOOL* isClosed)
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{
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INT i, count;
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if(!iterator)
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return InvalidParameter;
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count = iterator->pathdata.Count;
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if(iterator->subpath_pos == count){
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*startIndex = *endIndex = *resultCount = 0;
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*isClosed = 1;
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return Ok;
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}
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*startIndex = iterator->subpath_pos;
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for(i = iterator->subpath_pos + 1; i < count &&
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!(iterator->pathdata.Types[i] == PathPointTypeStart); i++);
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*endIndex = i - 1;
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iterator->subpath_pos = i;
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*resultCount = *endIndex - *startIndex + 1;
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if(iterator->pathdata.Types[*endIndex] & PathPointTypeCloseSubpath)
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*isClosed = TRUE;
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else
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*isClosed = FALSE;
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return Ok;
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}
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GpStatus WINGDIPAPI GdipPathIterRewind(GpPathIterator *iterator)
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{
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if(!iterator)
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return InvalidParameter;
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iterator->subpath_pos = 0;
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iterator->marker_pos = 0;
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iterator->pathtype_pos = 0;
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return Ok;
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}
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