aminal/buffer/cell.go

76 lines
1.2 KiB
Go

package buffer
import (
"image"
)
type Cell struct {
r rune
attr CellAttributes
image *image.RGBA
}
type CellAttributes struct {
FgColour [3]float32
BgColour [3]float32
Bold bool
Dim bool
Underline bool
Blink bool
Inverse bool
Hidden bool
}
func (cell *Cell) Image() *image.RGBA {
return cell.image
}
func (cell *Cell) SetImage(img *image.RGBA) {
cell.image = img
}
func (cell *Cell) Attr() CellAttributes {
return cell.attr
}
func (cell *Cell) Rune() rune {
return cell.r
}
func (cell *Cell) Fg() [3]float32 {
if cell.Attr().Inverse {
return cell.attr.BgColour
}
return cell.attr.FgColour
}
func (cell *Cell) Bg() [3]float32 {
if cell.Attr().Inverse {
return cell.attr.FgColour
}
return cell.attr.BgColour
}
func (cell *Cell) erase(bgColour [3]float32) {
cell.setRune(0)
cell.attr.BgColour = bgColour
}
func (cell *Cell) setRune(r rune) {
cell.r = r
}
func NewBackgroundCell(colour [3]float32) Cell {
return Cell{
attr: CellAttributes{
BgColour: colour,
},
}
}
func (cellAttr *CellAttributes) ReverseVideo() {
oldFgColour := cellAttr.FgColour
cellAttr.FgColour = cellAttr.BgColour
cellAttr.BgColour = oldFgColour
}