ref: 6dce09cec3bf6a689fa9a3f838df67d7d48d9d1a
dir: /libdraw/rectclip.c/
#include "lib9.h" #include "draw.h" #define DP if(1){}else print int rectclip(Rectangle *rp, Rectangle b) /* first by reference, second by value */ { Rectangle *bp = &b; /* * Expand rectXrect() in line for speed */ DP("rectclip rp->min.x %d < bp->max.x %d &&\n" "\tbp->min.x %d<rp->max.x %d &&\n" "\trp->min.y %d<bp->max.y %d &&\n" "\tbp->min.y %d<rp->max.y %d," "\tcond %d %d %d %d\n\t%d %d\n\t%d\n", rp->min.x,bp->max.x , bp->min.x,rp->max.x , rp->min.y,bp->max.y , bp->min.y,rp->max.y, rp->min.x<bp->max.x, bp->min.x<rp->max.x, rp->min.y<bp->max.y, bp->min.y<rp->max.y, rp->min.x<bp->max.x && bp->min.x<rp->max.x, rp->min.y<bp->max.y && bp->min.y<rp->max.y, rp->min.x<bp->max.x && bp->min.x<rp->max.x && rp->min.y<bp->max.y && bp->min.y<rp->max.y); if((rp->min.x<bp->max.x && bp->min.x<rp->max.x && rp->min.y<bp->max.y && bp->min.y<rp->max.y)==0) return 0; /* They must overlap */ if(rp->min.x < bp->min.x) rp->min.x = bp->min.x; if(rp->min.y < bp->min.y) rp->min.y = bp->min.y; if(rp->max.x > bp->max.x) rp->max.x = bp->max.x; if(rp->max.y > bp->max.y) rp->max.y = bp->max.y; return 1; }