/* * This file is part of the UCB release of Plan 9. It is subject to the license * terms in the LICENSE file found in the top-level directory of this * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No * part of the UCB release of Plan 9, including this file, may be copied, * modified, propagated, or distributed except according to the terms contained * in the LICENSE file. */#include <u.h>#include <libc.h>#include <draw.h>#include <memdraw.h>#include <memlayer.h>voidmemldelete(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 */voidmemlfree(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; } }}
/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
#include <u.h>
#include <libc.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;
}
}
}