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manage off-screen tick better

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This commit is contained in:
rsc 2007-05-10 19:08:47 +00:00
parent 813751d754
commit 7a3533513e
2 changed files with 18 additions and 8 deletions
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24
src/cmd/samterm/flayer.c
View file

@ -274,6 +274,7 @@ void
flsetselect(Flayer *l, long p0, long p1)
{
ulong fp0, fp1;
int ticked;
l->click = 0;
if(l->visible==None || !flprepare(l)){
@ -281,9 +282,12 @@ flsetselect(Flayer *l, long p0, long p1)
return;
}
l->p0 = p0, l->p1 = p1;
flfp0p1(l, &fp0, &fp1);
if(fp0==l->f.p0 && fp1==l->f.p1)
flfp0p1(l, &fp0, &fp1, &ticked);
if(fp0==l->f.p0 && fp1==l->f.p1){
if(l->f.ticked != ticked)
frdrawseltick(&l->f, frptofchar(&l->f, fp0), fp0, fp1, 1, ticked);
return;
}
if(fp1<=l->f.p0 || fp0>=l->f.p1 || l->f.p0==l->f.p1 || fp0==fp1){
/* no overlap or trivial repainting */
@ -315,18 +319,23 @@ flsetselect(Flayer *l, long p0, long p1)
}
void
flfp0p1(Flayer *l, ulong *pp0, ulong *pp1)
flfp0p1(Flayer *l, ulong *pp0, ulong *pp1, int *ticked)
{
long p0 = l->p0-l->origin, p1 = l->p1-l->origin;
if(p0 < 0)
*ticked = 1;
if(p0 < 0){
*ticked = 0;
p0 = 0;
}
if(p1 < 0)
p1 = 0;
if(p0 > l->f.nchars)
p0 = l->f.nchars;
if(p1 > l->f.nchars)
if(p1 > l->f.nchars){
*ticked = 0;
p1 = l->f.nchars;
}
*pp0 = p0;
*pp1 = p1;
}
@ -401,6 +410,7 @@ flprepare(Flayer *l)
Frame *f;
ulong n;
Rune *r;
int ticked;
if(l->visible == None)
return 0;
@ -418,8 +428,8 @@ flprepare(Flayer *l)
r = (*l->textfn)(l, n, &n);
frinsert(f, r, r+n, (ulong)0);
frdrawsel(f, frptofchar(f, f->p0), f->p0, f->p1, 0);
flfp0p1(l, &f->p0, &f->p1);
frdrawsel(f, frptofchar(f, f->p0), f->p0, f->p1, 1);
flfp0p1(l, &f->p0, &f->p1, &ticked);
frdrawseltick(f, frptofchar(f, f->p0), f->p0, f->p1, 1, ticked);
l->lastsr = ZR;
scrdraw(l, scrtotal(l));
}

2
src/cmd/samterm/flayer.h
View file

@ -28,7 +28,7 @@ struct Flayer
void flborder(Flayer*, int);
void flclose(Flayer*);
void fldelete(Flayer*, long, long);
void flfp0p1(Flayer*, ulong*, ulong*);
void flfp0p1(Flayer*, ulong*, ulong*, int*);
void flinit(Flayer*, Rectangle, Font*, Image**);
void flinsert(Flayer*, Rune*, Rune*, long);
void flnew(Flayer*, Rune *(*fn)(Flayer*, long, ulong*), int, void*);