// Converts image.Image img to a []string of 256 color terminal compatbile
// UTF8 using UTF8 1/2 blocks as a "pixel". Applies Transformer trans to img
// before conversion
func UTF8(img image.Image, trans Transformer) []string {
if trans != nil {
img = trans(img)
}
bounds := img.Bounds()
termimg := make([]string, (bounds.Dy()/2)+1, (bounds.Dy()/2)+1)
rownum := 0
for i := 0; i < bounds.Dy(); i += 2 {
row := ""
for j := 0; j < bounds.Dx(); j++ {
colortop := terminal.FindColorCode(img.At(j, i))
colorbottom := terminal.FindColorCode(img.At(j, i+1))
if colortop == colorbottom {
if colortop > 0 {
row += terminal.Bg(colortop, space)
} else {
row += terminal.Reset + space
}
} else {
if colortop > 0 && colorbottom > 0 {
row += terminal.Bg(colorbottom, terminal.Fg(colortop, top))
} else if colortop > 0 && colorbottom == 0 {
row += terminal.Reset + terminal.Fg(colortop, top)
} else if colortop == 0 && colorbottom > 0 {
row += terminal.Reset + terminal.Fg(colorbottom, bottom)
}
}
}
termimg[rownum] = row + terminal.Reset
rownum++
}
return termimg
}
// Converts image.Image img to a []string of 256 color terminal compatbile
// ANSI using 2 spaces as a "pixel". Applies Transformer trans to img
// before conversion
func ANSI(img image.Image, trans Transformer) []string {
if trans != nil {
img = trans(img)
}
bounds := img.Bounds()
termimg := make([]string, bounds.Dy(), bounds.Dy())
for i := 0; i < bounds.Dy(); i++ {
row := ""
local := ""
curcolor := terminal.ColorCode(0)
for j := 0; j < bounds.Dx(); j++ {
newcolor := terminal.FindColorCode(img.At(j, i))
if newcolor != curcolor {
if curcolor > 0 {
row += terminal.Bg(curcolor, local)
} else {
row += terminal.Reset + local
}
curcolor = newcolor
local = ""
}
local += spaces
}
if curcolor > 0 {
row += terminal.Bg(curcolor, local)
} else {
row += terminal.Reset + local
}
termimg[i] = row + terminal.Reset
}
return termimg
}