/// <summary>
/// Replace all rgb(#,#,#) and rgba(#,#,#,1) strings with their hex value,
/// Replace all hsl(#,#,#) and hsla(#,#,#,1) strings with their hex value.
/// </summary>
private static void ConvertColors( ref string source )
{
var colors = new ColorConversions();
char[] parens = { '(', ')' };
string[] nums;
source = Regex.Replace( source, "rgba?\\(\\d{1,3},\\d{1,3},\\d{1,3}(,1)?\\)", m => {
nums = m.Value.Split( parens )[ 1 ].Split( ',' );
try {
byte[] rgb = {
Byte.Parse( nums[ 0 ] ),
Byte.Parse( nums[ 1 ] ),
Byte.Parse( nums[ 2 ] )
};
return m.Value.Replace( m.Value, colors.ConvertRgbToHex( rgb ) );
}
catch( Exception e ) {
if( e is ArgumentNullException ||
e is FormatException ||
e is OverflowException ) {
MessageBox.Show( "Failed to parse " + m.Value, "Parse Error" );
}
else {
throw;
}
}
return m.Value;
} );
// Have to '{0,1}' the '%' since they may have been removed in a previous step
source = Regex.Replace( source, "hsla?\\(\\d{1,3},\\d{1,3}%?,\\d{1,3}%?(,1)?\\)", m => {
nums = m.Value.Replace( "%", string.Empty ).Split( parens )[ 1 ].Split( ',' );
double h, s, l;
try {
h = Double.Parse( nums[ 0 ] ) / 360;
s = Double.Parse( nums[ 1 ] ) / 100;
l = Double.Parse( nums[ 2 ] ) / 100;
return m.Value.Replace( m.Value, colors.ConvertHslToHex( h, s, l ) );
}
catch( Exception ex ) {
if( ex is ArgumentNullException ||
ex is FormatException ||
ex is OverflowException ) {
MessageBox.Show( "Failed to parse " + m.Value, "Parse Error" );
}
else {
throw;
}
}
return m.Value;
} );
}
