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package termbox
// private API, common OS agnostic part
type cellbuf struct {
width int
height int
cells []Cell
}
func (this *cellbuf) init(width, height int) {
this.width = width
this.height = height
this.cells = make([]Cell, width*height)
}
func (this *cellbuf) resize(width, height int) {
if this.width == width && this.height == height {
return
}
oldw := this.width
oldh := this.height
oldcells := this.cells
this.init(width, height)
this.clear()
minw, minh := oldw, oldh
if width < minw {
minw = width
}
if height < minh {
minh = height
}
for i := 0; i < minh; i++ {
srco, dsto := i*oldw, i*width
src := oldcells[srco : srco+minw]
dst := this.cells[dsto : dsto+minw]
copy(dst, src)
}
}
func (this *cellbuf) clear() {
for i := range this.cells {
c := &this.cells[i]
c.Ch = ' '
c.Fg = foreground
c.Bg = background
}
}
const cursor_hidden = -1
func is_cursor_hidden(x, y int) bool {
return x == cursor_hidden || y == cursor_hidden
}
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