WIP: xA: IRC colors

1 files changed, 53 insertions, 7 deletions

diff --git a/xA/xA.go b/xA/xA.go
index 20d8351..7c2231f 100644
--- a/xA/xA.go
+++ b/xA/xA.go
@@ -34,12 +34,60 @@ var (
 
 type customTheme struct{}
 
+func convertColor(c int) color.Color {
+	base16 := []uint16{
+		0x000, 0x800, 0x080, 0x880, 0x008, 0x808, 0x088, 0xccc,
+		0x888, 0xf00, 0x0f0, 0xff0, 0x00f, 0xf0f, 0x0ff, 0xfff,
+	}
+	if c < 16 {
+		r := 0xf & uint8(base16[c]>>8)
+		g := 0xf & uint8(base16[c]>>4)
+		b := 0xf & uint8(base16[c])
+		return color.RGBA{r * 0x11, g * 0x11, b * 0x11, 0xff}
+	}
+	if c >= 216 {
+		return color.Gray{8 + uint8(c-216)*10}
+	}
+
+	var (
+		i = uint8(c - 16)
+		r = i / 36 >> 0
+		g = (i / 6 >> 0) % 6
+		b = i % 6
+	)
+	if r != 0 {
+		r = 55 + 40*r
+	}
+	if g != 0 {
+		g = 55 + 40*g
+	}
+	if b != 0 {
+		b = 55 + 40*b
+	}
+	return color.RGBA{r, g, b, 0xff}
+}
+
+var ircColors = make(map[fyne.ThemeColorName]color.Color)
+
+func init() {
+	for color := 0; color < 256; color++ {
+		ircColors[fyne.ThemeColorName(
+			fmt.Sprintf("irc%02x", color))] = convertColor(color)
+	}
+}
+
 func (t *customTheme) Color(
 	name fyne.ThemeColorName, variant fyne.ThemeVariant) color.Color {
+	// Fuck this low contrast shit, text must be black.
 	if name == theme.ColorNameForeground &&
 		variant == theme.VariantLight {
 		return color.Black
 	}
+
+	// TODO(p): Consider constants for stuff like timestamps.
+	if c, ok := ircColors[name]; ok {
+		return c
+	}
 	return theme.DefaultTheme().Color(name, variant)
 }
 
@@ -64,13 +112,11 @@ type server struct {
 }
 
 type bufferLineItem struct {
-	// TODO(p): Figure out how to store formatting.
-	//  → fyne.TextStyle, however this doesn't store bg or fg colour,
-	//    which is only a widget.{Custom,}TextGridStyle thing.
-	//  - I'll likely have to create 257^2 name combinations,
-	//    plus perhaps add names for "internal" stuff like timestamps.
-	//     - theme.ColorForWidget
-	text string
+	format fyne.TextStyle
+	// For RichTextStyle.ColorName.
+	// XXX: Fyne's RichText doesn't support background colours.
+	color string
+	text  string
 }
 
 type bufferLine struct {