/******************************************************************************
* Copyright (c) 2014 Oracle
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Shenxue Zhou - initial implementation and ongoing maintenance
* Konstantin Komissarchik - adapted from ValueSerializationService
******************************************************************************/
package org.eclipse.sapphire.internal;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.sapphire.Color;
import org.eclipse.sapphire.ConversionService;
/**
* ConversionService implementation for String to Color conversions.
*
* @author <a href="mailto:shenxue.zhou@oracle.com">Shenxue Zhou</a>
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class StringToColorConversionService extends ConversionService<String,Color>
{
private static Map<String, Color> namedColors;
static
{
namedColors = new HashMap<String, Color>();
namedColors.put( "aqua", new Color( 0, 255, 255 ) );
namedColors.put( "black", new Color( 0, 0, 0 ) );
namedColors.put( "blue", new Color( 0, 0, 255 ) );
namedColors.put( "fuchsia", new Color( 255, 0, 255 ) );
namedColors.put( "gray", new Color( 128, 128, 128 ) );
namedColors.put( "green", new Color( 0, 128, 0 ) );
namedColors.put( "lime", new Color( 0, 255, 0 ) );
namedColors.put( "maroon", new Color( 128, 0, 0 ) );
namedColors.put( "navy", new Color( 0, 0, 128 ) );
namedColors.put( "olive", new Color( 128, 128, 0 ) );
namedColors.put( "orange", new Color( 255, 165, 0 ) );
namedColors.put( "purple", new Color( 128, 0, 128 ) );
namedColors.put( "red", new Color( 255, 0, 0 ) );
namedColors.put( "silver", new Color( 192, 192, 192 ) );
namedColors.put( "teal", new Color( 0, 128, 128 ) );
namedColors.put( "white", new Color( 255, 255, 255 ) );
namedColors.put( "yellow", new Color( 255, 255, 0 ) );
}
public StringToColorConversionService()
{
super( String.class, Color.class );
}
@Override
public Color convert( final String string )
{
Color result = null;
if( string.startsWith( "#" ) && string.length() == 7 )
{
try
{
final int r = Integer.valueOf( string.substring( 1, 3 ), 16 );
final int g = Integer.valueOf( string.substring( 3, 5 ), 16 );
final int b = Integer.valueOf( string.substring( 5, 7 ), 16 );
result = new Color( r, g, b );
}
catch( NumberFormatException e )
{
// Intentionally ignored.
}
}
else
{
result = namedColors.get( string.toLowerCase() );
}
return result;
}
}