68 lines
1.2 KiB
C
68 lines
1.2 KiB
C
|
#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;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|