/*	@(#)rect.h 1.1 92/07/30 SMI	*/#ifndef sunwindow_rect_DEFINED#define sunwindow_rect_DEFINED/* * Copyright (c) 1983 by Sun Microsystems, Inc. *//* * Defines the interface to the geometric object * called a Rect which is a rectangle. */#ifndef coord#define coord	short#endif#ifndef bool#define bool	unsigned#endif#ifndef TRUE#define	TRUE	1#endif#ifndef FALSE#define FALSE	0#endif#ifndef max#define max(a,b)	(((a) > (b)) ? (a) : (b))#endif#ifndef min#define min(a,b)	(((a) < (b)) ? (a) : (b))#endif/* * Rectangle sort ordering. */#define	RECTS_TOPTOBOTTOM	0#define	RECTS_BOTTOMTOTOP	1#define	RECTS_LEFTTORIGHT	2#define	RECTS_RIGHTTOLEFT	3#define	RECTS_UNSORTED		-1#define	RECTS_SORTS		4typedef struct rect {	coord	r_left, r_top;	short	r_width, r_height;} Rect;#define	RECT_NULL	((Rect *)0)extern	struct rect rect_null;/* * Rect Geometry macros */#define	rect_right(rect)  	((rect)->r_left+(rect)->r_width-1)#define	rect_bottom(rect) 	((rect)->r_top+(rect)->r_height-1)#ifdef KERNEL#define rect_print(rect) \        (void)printf("[left: %d, top: %d, width: %d, height: %d]",\            (rect)->r_left, (rect)->r_top, (rect)->r_width, (rect)->r_height)#else#define rect_print(rect) \        (void)fprintf(stderr,"[left: %d, top: %d, width: %d, height: %d]",\            (rect)->r_left, (rect)->r_top, (rect)->r_width, (rect)->r_height)#endif#define rect_marginadjust(r,m) \	{(r)->r_left-=(m);(r)->r_top-=(m); \	 (r)->r_width+=(m)+(m);(r)->r_height+=(m)+(m);}#define rect_construct(r,x,y,w,h) \	{(r)->r_left=(x);(r)->r_top=(y);(r)->r_width=(w);(r)->r_height=(h);}/* * Rect Predicate macros */#define rect_equal(r1,r2) \	((r1)->r_left==(r2)->r_left && (r1)->r_width==(r2)->r_width && \	 (r1)->r_top==(r2)->r_top && (r1)->r_height==(r2)->r_height)#define rect_sizes_differ(r1, r2) \        ((r1)->r_width != (r2)->r_width || (r1)->r_height != (r2)->r_height)#define rect_isnull(r)		((r)->r_width == 0 || (r)->r_height == 0)#define rect_includespoint(r,x,y) \	((x) >= (r)->r_left && (y) >= (r)->r_top && \	 (x)<(r)->r_left+(r)->r_width && (y)<(r)->r_top+(r)->r_height)#define rect_includesrect(r1, r2) \	((r1)->r_left <= (r2)->r_left && (r1)->r_top <= (r2)->r_top && \	 (r1)->r_left+(r1)->r_width >= (r2)->r_left+(r2)->r_width && \	 (r1)->r_top+(r1)->r_height >= (r2)->r_top+(r2)->r_height)#define rect_intersectsrect(r1,r2) \	((r1)->r_left<(r2)->r_left+(r2)->r_width && \	 (r1)->r_top<(r2)->r_top+(r2)->r_height &&  \	 (r2)->r_left<(r1)->r_left+(r1)->r_width && \	 (r2)->r_top<(r1)->r_top+(r1)->r_height)/* * Rect Transformation macros used for passing rects up/down embedded * coordinate systems. */#define	rect_passtoparent(x,y,rect) \	{(rect)->r_left=(rect)->r_left+(x); (rect)->r_top=(rect)->r_top+(y);}#define	rect_passtochild(x,y,rect) \	{(rect)->r_left=(rect)->r_left-(x); (rect)->r_top=(rect)->r_top-(y);}extern	struct rect rect_bounding();#ifndef KERNELextern	bool rect_clipvector(), rect_order();#endif !KERNEL#ifdef cplus/* * C Library routine specifications related to rect functions. */bool	rect_clipvector(struct rect *r, int *x0, *y0, *x1, *y1);struct	rect rect_bounding(struct rect *r1, *r2);void	rect_intersection(struct rect *r1, *r2, *r);bool	rect_order(struct rect *r1, *r2, int sortorder);#endif cplus#ifndef LINT_CAST#ifdef lint#define LINT_CAST(arg)	(arg ? 0 : 0)#else#define LINT_CAST(arg)	(arg)#endif lint#endif LINT_CAST#endif sunwindow_rect_DEFINED