func insertmode(d *Dvi) {
startpos := &Position{d.b.pos.line, d.b.pos.off}
for {
draw(d)
k := getCh(d)
switch k {
case 27:
if p := prevChar(*d.b.pos); p.line == d.b.pos.line {
d.b.pos = p
}
return
case curses.KEY_LEFT, curses.KEY_RIGHT, curses.KEY_UP, curses.KEY_DOWN:
curses.Beep()
case ctrl('H'), 127, curses.KEY_BACKSPACE:
// TODO: Don't let backspace travel past starting point of input session
pp := prevChar2(*d.b.pos)
if posEq(d.b.pos, startpos) {
d.queueMsg("", 1, true)
continue
}
d.b.remove(*prevChar2(*d.b.pos), *d.b.pos, false)
d.b.pos = pp
default:
d.b.pos = d.b.add(*d.b.pos, []byte{byte(k)})
d.b.dirty = true
}
}
}
func draw(d *Dvi) os.Error {
f := d.b
if f == nil {
return nil
}
// this is some slow ass scroll action, ill figure out a way to avoid this later
for l := f.first; l != f.disp && l != nil; l = l.next {
if l == f.pos.line {
for l != f.disp {
f.disp = f.disp.prev
}
break
}
}
for i, l := 0, f.disp; l != nil; i, l = i+screenlines(l), l.next {
if l == f.pos.line {
for i+screenlines(l) > *curses.Rows-1 {
f.disp = f.disp.next
i -= screenlines(l)
}
break
}
}
cursory := 0
cursorx := 0
y := 0
for l := f.disp; y < *curses.Rows-1 && l != nil; y, l = y+1, l.next {
x := 0
d.w.Move(y, 0)
d.w.Clrtoeol()
if l == f.pos.line {
cursory = y
for i, c := range l.text {
if i >= f.pos.off {
break
}
cursorx += charlen(c)
if cursorx > *curses.Cols-1 {
cursory++
cursorx = 0
}
}
}
x = 0
colors := int32(0)
if f.pos.line == l {
colors = curses.Color_pair(1)
}
for _, c := range l.text {
if x > *curses.Cols-1 {
y++
x = 0
d.w.Move(y, 0)
d.w.Clrtoeol()
}
for i := x; i < x+charlen(c); i++ {
d.w.Mvaddch(y, i, int32(c), colors)
}
x += charlen(c)
}
if colors != 0 {
for ; x < *curses.Cols; x++ {
d.w.Mvaddch(y, x, int32(' '), colors)
}
}
}
for ; y < *curses.Rows-1; y++ {
d.w.Move(y, 0)
d.w.Clrtoeol()
d.w.Mvaddch(y, 0, int32('~'), 0)
}
d.currx = cursorx
d.curry = cursory
msg := ""
mcolor := 3
beep := false
select {
case fromq := <-d.statusq:
msg = fromq.Display()
mcolor = fromq.Color()
beep = fromq.Beep()
default:
msg, mcolor, beep = d.statusDisplay()
}
d.w.Move(*curses.Rows-1, 0)
d.w.Clrtoeol()
for i := 0; i < *curses.Cols && i < len(msg); i++ {
d.w.Mvaddch(*curses.Rows-1, i, int32(msg[i]), curses.Color_pair(mcolor))
}
// s.w.Mvwaddnstr(*curses.Rows-1, 0, msg, *curses.Cols)
d.w.Move(cursory, cursorx)
if beep {
curses.Beep()
}
d.w.Refresh()
return nil
}
func Beep() {
curses.Beep()
}