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acme: do not redraw body on every tag change

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fixes #5
http://bitbucket.org/rsc/plan9port/issue/5/
http://groups.google.com/group/plan9port-dev/t/e679347ecaa05cff

http://codereview.appspot.com/95041
This commit is contained in:
Russ Cox 2009-07-15 02:11:02 -04:00
parent e6c837d612
commit cb92a1b41c
2 changed files with 4 additions and 3 deletions
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5
src/cmd/acme/text.c
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@ -46,7 +46,8 @@ textredraw(Text *t, Rectangle r, Font *f, Image *b, int odx)
frinit(&t->fr, r, f, b, t->fr.cols);
rr = t->fr.r;
rr.min.x -= Scrollwid+Scrollgap; /* back fill to scroll bar */
draw(t->fr.b, rr, t->fr.cols[BACK], nil, ZP);
if(!t->fr.noredraw)
draw(t->fr.b, rr, t->fr.cols[BACK], nil, ZP);
/* use no wider than 3-space tabs in a directory */
maxt = maxtab;
if(t->what == Body){
@ -85,7 +86,7 @@ textresize(Text *t, Rectangle r, int keepextra)
r.min.x += Scrollwid+Scrollgap;
frclear(&t->fr, 0);
textredraw(t, r, t->fr.font, t->fr.b, odx);
if(keepextra && t->fr.r.max.y < t->all.max.y){
if(keepextra && t->fr.r.max.y < t->all.max.y && !t->fr.noredraw){
/* draw background in bottom fringe of window */
r.min.x -= Scrollgap;
r.min.y = t->fr.r.max.y;