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package input
import (
"fmt"
"image/color"
"strconv"
"strings"
)
// ForegroundColorEvent represents a foreground color change event.
type ForegroundColorEvent struct{ color.Color }
// String implements fmt.Stringer.
func (e ForegroundColorEvent) String() string {
return colorToHex(e)
}
// BackgroundColorEvent represents a background color change event.
type BackgroundColorEvent struct{ color.Color }
// String implements fmt.Stringer.
func (e BackgroundColorEvent) String() string {
return colorToHex(e)
}
// CursorColorEvent represents a cursor color change event.
type CursorColorEvent struct{ color.Color }
// String implements fmt.Stringer.
func (e CursorColorEvent) String() string {
return colorToHex(e)
}
type shiftable interface {
~uint | ~uint16 | ~uint32 | ~uint64
}
func shift[T shiftable](x T) T {
if x > 0xff {
x >>= 8
}
return x
}
func colorToHex(c color.Color) string {
r, g, b, _ := c.RGBA()
return fmt.Sprintf("#%02x%02x%02x", shift(r), shift(g), shift(b))
}
func xParseColor(s string) color.Color {
switch {
case strings.HasPrefix(s, "rgb:"):
parts := strings.Split(s[4:], "/")
if len(parts) != 3 {
return color.Black
}
r, _ := strconv.ParseUint(parts[0], 16, 32)
g, _ := strconv.ParseUint(parts[1], 16, 32)
b, _ := strconv.ParseUint(parts[2], 16, 32)
return color.RGBA{uint8(shift(r)), uint8(shift(g)), uint8(shift(b)), 255}
case strings.HasPrefix(s, "rgba:"):
parts := strings.Split(s[5:], "/")
if len(parts) != 4 {
return color.Black
}
r, _ := strconv.ParseUint(parts[0], 16, 32)
g, _ := strconv.ParseUint(parts[1], 16, 32)
b, _ := strconv.ParseUint(parts[2], 16, 32)
a, _ := strconv.ParseUint(parts[3], 16, 32)
return color.RGBA{uint8(shift(r)), uint8(shift(g)), uint8(shift(b)), uint8(shift(a))}
}
return color.Black
}
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