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Support 256color (and assume 256color terminal). Closes #3 github issue.

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This commit is contained in:
Keith Winstein
2012-03-16 04:40:18 -04:00
parent bdcdad7081
commit 57d97209c0
5 changed files with 63 additions and 10 deletions
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src/terminal/terminalframebuffer.cc
+38 -4
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@@ -369,6 +369,7 @@ Renditions::Renditions( int s_background )
background_color( s_background )
{}
/* This routine cannot be used to set a color beyond the 8-color set. */
void Renditions::set_rendition( int num )
{
if ( num == 0 ) {
@@ -377,10 +378,18 @@ void Renditions::set_rendition( int num )
return;
}
if ( (30 <= num) && (num <= 39) ) { /* foreground color */
if ( num == 39 ) {
foreground_color = 0;
return;
} else if ( num == 49 ) {
background_color = 0;
return;
}
if ( (30 <= num) && (num <= 37) ) { /* foreground color in 8-color set */
foreground_color = num;
return;
} else if ( (40 <= num) && (num <= 49) ) { /* background color */
} else if ( (40 <= num) && (num <= 47) ) { /* background color in 8-color set */
background_color = num;
return;
}
@@ -394,6 +403,20 @@ void Renditions::set_rendition( int num )
}
}
void Renditions::set_foreground_color( int num )
{
if ( (0 <= num) && (num <= 255) ) {
foreground_color = 30 + num;
}
}
void Renditions::set_background_color( int num )
{
if ( (0 <= num) && (num <= 255) ) {
background_color = 40 + num;
}
}
std::string Renditions::sgr( void ) const
{
std::string ret;
@@ -404,16 +427,27 @@ std::string Renditions::sgr( void ) const
if ( blink ) ret.append( ";5" );
if ( inverse ) ret.append( ";7" );
if ( invisible ) ret.append( ";8" );
if ( foreground_color ) {
if ( foreground_color > 37 ) { /* use 256-color set */
char col[ 64 ];
snprintf( col, 64, "m\033[38;5;%d", foreground_color - 30 );
ret.append( col );
} else if ( foreground_color ) {
char col[ 8 ];
snprintf( col, 8, ";%d", foreground_color );
ret.append( col );
}
if ( background_color ) {
if ( background_color > 47 ) { /* use 256-color set */
char col[ 64 ];
snprintf( col, 64, "m\033[48;5;%d", background_color - 40 );
ret.append( col );
} else if ( background_color ) {
char col[ 8 ];
snprintf( col, 8, ";%d", background_color );
ret.append( col );
}
ret.append( "m" );
return ret;