xfnw/plan9fox
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity

mothra: cache backup bitmap in pl_rtdraw()

Browse source
This commit is contained in:
cinap_lenrek 2012-09-24 23:32:57 +02:00
parent 8007596779
commit a8a71a36f5
1 changed files with 10 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
sys/src/cmd/mothra/libpanel/rtext.c
View file

@ -164,14 +164,18 @@ void pl_stuffbitmap(Panel *p, Image *b){
}
void pl_rtdraw(Image *b, Rectangle r, Rtext *t, int yoffs){
static Image *backup;
Point offs, lp;
Rectangle dr;
Image *bb;
bb = b;
if((b = allocimage(display, r, bb->chan, 0, DNofill)) == nil)
b = bb;
if(backup==0 || rectinrect(r, backup->r)==0){
freeimage(backup);
backup=allocimage(display, bb->r, bb->chan, 0, DNofill);
}
if(backup)
b=backup;
pl_clr(b, r);
lp=ZP;
offs=subpt(r.min, Pt(0, yoffs));
@ -188,7 +192,7 @@ void pl_rtdraw(Image *b, Rectangle r, Rtext *t, int yoffs){
else if(t->p){
plmove(t->p, subpt(dr.min, t->p->r.min));
pldraw(t->p, b);
if(b != bb)
if(b!=bb)
pl_stuffbitmap(t->p, bb);
}
else{
@ -208,11 +212,8 @@ void pl_rtdraw(Image *b, Rectangle r, Rtext *t, int yoffs){
lp=ZP;
}
}
if(b != bb){
draw(bb, r, b, 0, b->r.min);
freeimage(b);
}
if(b!=bb)
draw(bb, r, b, 0, r.min);
}
/*
* Reposition text already drawn in the window.