107 lines
3.3 KiB
C
107 lines
3.3 KiB
C
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/*******************************************************************************
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/
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/ File: Region.h
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/
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/ Description: BRegion represents an area that's composed of individual
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/ rectangles.
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/
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/ Copyright 1992-98, Be Incorporated, All Rights Reserved
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/
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*******************************************************************************/
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#ifndef _REGION_H
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#define _REGION_H
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#include <BeBuild.h>
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#include <Rect.h>
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/* Integer rect used to define a cliping rectangle. All bounds are included */
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/* Moved from DirectWindow.h */
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typedef struct {
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int32 left;
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int32 top;
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int32 right;
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int32 bottom;
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} clipping_rect;
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/*----------------------------------------------------------------*/
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/*----- BRegion class --------------------------------------------*/
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class BRegion {
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public:
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BRegion();
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BRegion(const BRegion ®ion);
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BRegion(const BRect rect);
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virtual ~BRegion();
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BRegion &operator=(const BRegion &from);
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BRect Frame() const;
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clipping_rect FrameInt() const;
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BRect RectAt(int32 index);
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clipping_rect RectAtInt(int32 index);
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int32 CountRects();
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void Set(BRect newBounds);
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void Set(clipping_rect newBounds);
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bool Intersects(BRect r) const;
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bool Intersects(clipping_rect r) const;
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bool Contains(BPoint pt) const;
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bool Contains(int32 x, int32 y);
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void PrintToStream() const;
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void OffsetBy(int32 dh, int32 dv);
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void MakeEmpty();
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void Include(BRect r);
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void Include(clipping_rect r);
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void Include(const BRegion*);
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void Exclude(BRect r);
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void Exclude(clipping_rect r);
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void Exclude(const BRegion*);
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void IntersectWith(const BRegion*);
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/*----- Private or reserved -----------------------------------------*/
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private:
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friend class BView;
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friend class BDirectWindow;
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friend void zero_region(BRegion *a_region);
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friend void clear_region(BRegion *a_region);
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friend void cleanup_region_1(BRegion *region_in);
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friend void cleanup_region(BRegion *region_in);
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friend void sort_rects(clipping_rect *rects, long count);
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friend void sort_trans(long *lptr1, long *lptr2, long count);
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friend void cleanup_region_horizontal(BRegion *region_in);
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friend void copy_region(BRegion *src_region, BRegion *dst_region);
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friend void copy_region_n(BRegion*, BRegion*, long);
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friend void and_region_complex(BRegion*, BRegion*, BRegion*);
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friend void and_region_1_to_n(BRegion*, BRegion*, BRegion*);
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friend void and_region(BRegion*, BRegion*, BRegion*);
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friend void append_region(BRegion*, BRegion*, BRegion*);
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friend void r_or(long, long, BRegion*, BRegion*, BRegion*, long*, long *);
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friend void or_region_complex(BRegion*, BRegion*, BRegion*);
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friend void or_region_1_to_n(BRegion*, BRegion*, BRegion*);
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friend void or_region_no_x(BRegion*, BRegion*, BRegion*);
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friend void or_region(BRegion*, BRegion*, BRegion*);
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friend void sub(long, long, BRegion*, BRegion*, BRegion*, long*, long*);
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friend void sub_region_complex(BRegion*, BRegion*, BRegion*);
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friend void r_sub(long , long, BRegion*, BRegion*, BRegion*, long*, long*);
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friend void sub_region(BRegion*, BRegion*, BRegion*);
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void _AddRect(clipping_rect r);
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void set_size(long new_size);
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long find_small_bottom(long y1, long y2, long *hint, long *where);
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private:
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long count;
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long data_size;
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clipping_rect bound;
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clipping_rect *data;
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};
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/*-------------------------------------------------------------*/
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/*-------------------------------------------------------------*/
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#endif /* _REGION_H */
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