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samterm: add mousewheel scrolling support

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This commit is contained in:
Philippe MECHAI 2019-04-11 19:55:43 +02:00
parent 9179fdaaf4
commit b59ecd83de
2 changed files with 14 additions and 8 deletions
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6
src/cmd/samterm/main.c
View file

@ -142,6 +142,10 @@ threadmain(int argc, char *argv[])
scroll(which, 3);
else
menu3hit();
}else if((mousep->buttons&8)){
scroll(which, 4);
}else if((mousep->buttons&16)){
scroll(which, 5);
}
mouseunblock();
}
@ -464,7 +468,7 @@ flushtyping(int clearesc)
ulong n;
if(clearesc)
typeesc = -1;
typeesc = -1;
if(typestart == typeend) {
modified = 0;
return;

16
src/cmd/samterm/scroll.c
View file

@ -115,7 +115,7 @@ scroll(Flayer *l, int but)
draw(scrback, Rect(0,0,Dx(l->scroll), Dy(l->scroll)), l->f.b, nil, l->scroll.min);
do{
oin = in;
in = abs(x-mousep->xy.x)<=FLSCROLLWID(l)/2;
in = (but>3) || abs(x-mousep->xy.x)<=FLSCROLLWID(l)/2;
if(oin && !in)
scrunmark(l, r);
if(in){
@ -128,7 +128,7 @@ scroll(Flayer *l, int but)
my = s.max.y;
if(!eqpt(mousep->xy, Pt(x, my)))
moveto(mousectl, Pt(x, my));
if(but == 1){
if(but == 1 || but == 4){
p0 = l->origin-frcharofpt(&l->f, Pt(s.max.x, my));
rt = scrpos(l->scroll, p0, p0+l->f.nchars, tot);
y = rt.min.y;
@ -136,7 +136,7 @@ scroll(Flayer *l, int but)
y = my;
if(y > s.max.y-2)
y = s.max.y-2;
}else if(but == 3){
}else if(but == 3 || but == 5){
p0 = l->origin+frcharofpt(&l->f, Pt(s.max.x, my));
rt = scrpos(l->scroll, p0, p0+l->f.nchars, tot);
y = rt.min.y;
@ -147,19 +147,21 @@ scroll(Flayer *l, int but)
scrmark(l, r);
}
}
}while(button(but));
}while(but<4 && button(but));
if(in){
h = s.max.y-s.min.y;
scrunmark(l, r);
p0 = 0;
if(but == 1)
if(but == 1 || but == 4){
but = 1;
p0 = (long)(my-s.min.y)/l->f.font->height+1;
else if(but == 2){
}else if(but == 2){
if(tot > 1024L*1024L)
p0 = ((tot>>10)*(y-s.min.y)/h)<<10;
else
p0 = tot*(y-s.min.y)/h;
}else if(but == 3){
}else if(but == 3 || but == 5){
but = 3;
p0 = l->origin+frcharofpt(&l->f, Pt(s.max.x, my));
if(p0 > tot)
p0 = tot;