diff --git a/_demos/mouse.go b/_demos/mouse.go index 9f6b307..4a1f330 100644 --- a/_demos/mouse.go +++ b/_demos/mouse.go @@ -136,7 +136,7 @@ func main() { keyfmt := "Keys: %s" pastefmt := "Paste: [%d] %s" white := tcell.StyleDefault. - Foreground(tcell.ColorWhite).Background(tcell.ColorRed) + Foreground(tcell.ColorMidnightBlue).Background(tcell.ColorLightCoral) mx, my := -1, -1 ox, oy := -1, -1 diff --git a/tscreen.go b/tscreen.go index 59afd2c..dcde34e 100644 --- a/tscreen.go +++ b/tscreen.go @@ -647,11 +647,27 @@ func (t *tScreen) encodeRune(r rune, buf []byte) []byte { return buf } -func (t *tScreen) sendFgBg(fg Color, bg Color) { +func (t *tScreen) sendFgBg(fg Color, bg Color, attr AttrMask) AttrMask { ti := t.ti if ti.Colors == 0 { - return + // foreground vs background, we calculate luminance + // and possibly do a reverse video + if !fg.Valid() { + return attr + } + v, ok := t.colors[fg] + if !ok { + v = FindColor(fg, []Color{ColorBlack, ColorWhite}) + t.colors[fg] = v + } + switch v { + case ColorWhite: + return attr + case ColorBlack: + return attr ^ AttrReverse + } } + if fg == ColorReset || bg == ColorReset { t.TPuts(ti.ResetFgBg) } @@ -662,7 +678,7 @@ func (t *tScreen) sendFgBg(fg Color, bg Color) { t.TPuts(ti.TParm(ti.SetFgBgRGB, int(r1), int(g1), int(b1), int(r2), int(g2), int(b2))) - return + return attr } if fg.IsRGB() && ti.SetFgRGB != "" { @@ -709,6 +725,7 @@ func (t *tScreen) sendFgBg(fg Color, bg Color) { t.TPuts(ti.TParm(ti.SetBg, int(bg&0xff))) } } + return attr } func (t *tScreen) drawCell(x, y int) int { @@ -751,7 +768,7 @@ func (t *tScreen) drawCell(x, y int) int { t.TPuts(ti.AttrOff) - t.sendFgBg(fg, bg) + attrs = t.sendFgBg(fg, bg, attrs) if attrs&AttrBold != 0 { t.TPuts(ti.Bold) } @@ -896,7 +913,7 @@ func (t *tScreen) clearScreen() { t.TPuts(t.ti.AttrOff) t.TPuts(t.exitUrl) fg, bg, _ := t.style.Decompose() - t.sendFgBg(fg, bg) + _ = t.sendFgBg(fg, bg, AttrNone) t.TPuts(t.ti.Clear) t.clear = false }