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#ifndef REGION_H
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#define REGION_H
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#include "sraRegion.h"
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#if 0
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#define NullRegion ((RegionPtr)0)
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#define NullBox ((BoxPtr)0)
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typedef struct RegDataRec {
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long size;
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long numRects;
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/* BoxRec rects[size]; in memory but not explicitly declared */
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} RegDataRec;
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extern void miRegionInit(RegionPtr,BoxPtr,int);
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extern void miRegionUninit(RegionPtr);
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extern Bool miRegionEmpty(RegionPtr);
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extern Bool miRegionNotEmpty(RegionPtr);
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extern Bool miIntersect(RegionPtr,RegionPtr,RegionPtr);
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extern Bool miSubtract(RegionPtr,RegionPtr,RegionPtr);
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extern Bool miUnion(RegionPtr,RegionPtr,RegionPtr);
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extern void miTranslateRegion(RegionPtr,int,int);
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#define REGION_NIL(reg) ((reg)->data && !(reg)->data->numRects)
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#define REGION_NUM_RECTS(reg) ((reg)->data ? (reg)->data->numRects : 1)
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#define REGION_SIZE(reg) ((reg)->data ? (reg)->data->size : 0)
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#define REGION_RECTS(reg) ((reg)->data ? (BoxPtr)((reg)->data + 1) \
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: &(reg)->extents)
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#define REGION_BOXPTR(reg) ((BoxPtr)((reg)->data + 1))
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#define REGION_BOX(reg,i) (®ION_BOXPTR(reg)[i])
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#define REGION_TOP(reg) REGION_BOX(reg, (reg)->data->numRects)
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#define REGION_END(reg) REGION_BOX(reg, (reg)->data->numRects - 1)
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#define REGION_SZOF(n) (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)))
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#define REGION_INIT(s,pReg,rect,size) miRegionInit(pReg,rect,size)
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#define REGION_EMPTY(s,pReg) miRegionEmpty(pReg)
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#define REGION_UNINIT(s,pReg) miRegionUninit(pReg)
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#define REGION_NOTEMPTY(s,pReg) miRegionNotEmpty(pReg)
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#define REGION_INTERSECT(s,newReg,reg1,reg2) miIntersect(newReg,reg1,reg2)
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#define REGION_SUBTRACT(s,newReg,reg1,reg2) miSubtract(newReg,reg1,reg2)
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#define REGION_UNION(s,newReg,reg1,reg2) miUnion(newReg,reg1,reg2)
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#define REGION_TRANSLATE(s,pReg,x,y) miTranslateRegion(pReg,x,y)
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#endif
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#endif
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