private ConsoleColor languageBaseColorToConsoleColor(LanguageBaseColor lgb)
{
int r = 0;
if (lgb.B >= 256 / 3)
{
r |= 1;
}
if (lgb.G >= 256 / 3)
{
r |= 2;
}
if (lgb.R >= 256 / 3)
{
r |= 4;
}
int max = Math.Max(lgb.B, Math.Max(lgb.G, lgb.R));
if (max < 256 / 3)
{
r = 0;
}
else if (max < 256 / 3 * 2)
{ /* do nothing */
}
else
{
r += 8;
}
return((ConsoleColor)r);
}
private LanguageBaseColor consoleColorToLanguageBaseColor(ConsoleColor cc)
{
var r = new LanguageBaseColor();
byte v;
if ((int)cc >= 8)
{
v = 255;
}
else
{
v = 128;
}
if (((int)cc & 1) != 0)
{
r.B = v;
}
if (((int)cc & 2) != 0)
{
r.G = v;
}
if (((int)cc & 4) != 0)
{
r.R = v;
}
r.A = 255;
return(r);
}
public async override Task <LanguageBaseColor> SetBackColorAsync(LanguageBaseColor color)
{
await Task.Delay(0); // dummy
var old = Console.BackgroundColor;
if (color != null)
{
Console.BackgroundColor = languageBaseColorToConsoleColor(color);
}
return(consoleColorToLanguageBaseColor(old));
}
