ref: c11957a7915d355d80ff7e6a21721ba05441ca29
dir: /libmemlayer/ldelete.c/
#include "lib9.h" #include "draw.h" #include "memdraw.h" #include "memlayer.h" void memldelete(Memimage *i) { Memscreen *s; Memlayer *l; l = i->layer; /* free backing store and disconnect refresh, to make pushback fast */ freememimage(l->save); l->save = nil; l->refreshptr = nil; memltorear(i); /* window is now the rearmost; clean up screen structures and deallocate */ s = i->layer->screen; if(s->fill){ i->clipr = i->r; memdraw(i, i->r, s->fill, i->r.min, nil, i->r.min, S); } if(l->front){ l->front->layer->rear = nil; s->rearmost = l->front; }else{ s->frontmost = nil; s->rearmost = nil; } free(l); freememimage(i); } /* * Just free the data structures, don't do graphics */ void memlfree(Memimage *i) { Memlayer *l; l = i->layer; freememimage(l->save); free(l); freememimage(i); } void _memlsetclear(Memscreen *s) { Memimage *i, *j; Memlayer *l; for(i=s->rearmost; i; i=i->layer->front){ l = i->layer; l->clear = rectinrect(l->screenr, l->screen->image->clipr); if(l->clear) for(j=l->front; j; j=j->layer->front) if(rectXrect(l->screenr, j->layer->screenr)){ l->clear = 0; break; } } }