func (mv *MaildirView) Draw(v *gocui.View) error {
v.Clear()
w, h := v.Size()
if h <= 1 {
return fmt.Errorf("The screen is too small")
}
if w <= 20 {
return fmt.Errorf("The screen is too small")
}
xo, _ := v.Origin()
v.SetOrigin(xo, mv.curTop)
xc, _ := v.Cursor()
v.SetCursor(xc, mv.cur-mv.curTop)
msgs := mv.md.messages
flagsLen := 5
indexLen := 6
sizeLen := 5
remW := w - indexLen - flagsLen - sizeLen + 2 /* two spaces */ + 2 /* two brackets around the size */
fromRatio := 25
subjRatio := 100 - fromRatio
fromLen := (remW - 10) * fromRatio / 100.0
subjLen := (remW - 10) * subjRatio / 100.0
fmtString := fmt.Sprintf("%%-%dd%%-%ds%%-%ds [%%%ds] %%-%ds\n", indexLen, flagsLen, fromLen, sizeLen, subjLen)
for i, m := range msgs {
from := util.TruncateString(m.From, fromLen)
subj := util.TruncateString(m.Subject, subjLen)
flags := flagsToString(m.Flags)
fmt.Fprintf(v, fmtString, i, flags, from, util.SiteToHuman(m.size), subj)
}
return nil
}
func (mv *MaildirView) scroll(v *gocui.View, incr int) {
xo, yo := v.Origin()
x, y := v.Cursor()
_, h := v.Size()
str := fmt.Sprintf("0: %d, ", incr)
if mv.cur+incr > len(mv.md.messages)-1 {
incr = len(mv.md.messages) - 1 - mv.cur
str += fmt.Sprintf("1: %d, ", incr)
}
if mv.cur+incr < 0 {
incr = 0 - mv.cur
str += fmt.Sprintf("2: %d, ", incr)
}
mv.cur += incr
y += incr
if y >= h || y < 0 {
mv.curTop += incr
if mv.curTop < 0 {
mv.curTop = 0
}
yo = yo + incr
if yo < 0 {
yo = 0
}
v.SetOrigin(xo, yo)
}
if y < 0 {
y = 0
}
v.SetCursor(x, y)
if false {
xo, yo = v.Origin()
x, y = v.Cursor()
setStatus(fmt.Sprintf("%s origin=(%d), cursor=(%d), mv=(%d, %d)", str, yo, y, mv.cur, mv.curTop))
}
}