func (e *Entry) draw(gc draw2d.GraphicContext) {
if e.textOffset+e.runeOffsets[e.cursor] < 5 {
e.textOffset = 5 - e.runeOffsets[e.cursor]
}
if e.textOffset+e.runeOffsets[e.cursor] > e.Size.X-5 {
e.textOffset = e.Size.X - 5 - e.runeOffsets[e.cursor]
}
gc.Clear()
if e.HasKeyFocus {
gc.SetFillColor(color.RGBA{150, 150, 150, 255})
safeRect(gc, geom.Coord{0, 0}, e.Size)
gc.Fill()
}
th := float64(e.textBuffer.Bounds().Max.Y - e.textBuffer.Bounds().Min.Y)
gc.Save()
gc.Translate(e.textOffset, 0)
if e.selecting {
start := e.runeOffsets[e.cursor]
end := e.runeOffsets[e.selectCursor]
if start > end {
start, end = end, start
}
gc.SetFillColor(color.RGBA{200, 200, 200, 255})
safeRect(gc, geom.Coord{start, 0}, geom.Coord{end, e.Size.Y})
gc.Fill()
}
gc.Translate(0, (e.Size.Y-th)/2)
gc.DrawImage(e.textBuffer)
gc.Restore()
if e.HasKeyFocus {
un := time.Duration(time.Now().UnixNano())
ms := un / time.Millisecond
ms = ms % 750
var intensity uint8 = 255
if ms > 550 {
diff := 650 - ms
if diff < 0 {
diff *= -1
}
intensity = uint8((diff * 255) / 200)
}
offset := float64(int(e.runeOffsets[e.cursor] + e.textOffset))
gc.SetStrokeColor(color.RGBA{A: intensity})
gc.MoveTo(offset, 0)
gc.LineTo(offset, e.Size.Y)
gc.Stroke()
e.Invalidate(geom.Rect{
Min: geom.Coord{offset - 1, 0},
Max: geom.Coord{offset + 1, e.Size.Y},
})
}
}