/******************************************************************************
* 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:
* Konstantin Komissarchik - initial implementation and ongoing maintenance
******************************************************************************/
package org.eclipse.sapphire.ui.def.internal;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.sapphire.Context;
import org.eclipse.sapphire.ConversionService;
import org.eclipse.sapphire.Element;
import org.eclipse.sapphire.ImageData;
import org.eclipse.sapphire.ui.def.IPackageReference;
import org.eclipse.sapphire.ui.def.ISapphireUiDef;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class StringToImageDataConversionService extends ConversionService<String,ImageData>
{
public StringToImageDataConversionService()
{
super( String.class, ImageData.class );
}
@Override
public ImageData convert( final String string )
{
final Element element = context( Element.class );
final Context ctxt = element.adapt( Context.class );
InputStream stream = null;
if( string != null && ! string.contains( "/" ) )
{
final ISapphireUiDef sdef = element.nearest( ISapphireUiDef.class );
if( sdef != null )
{
for( IPackageReference p : sdef.getImportedPackages() )
{
final String pname = p.getName().content();
if( pname != null )
{
final String possibleFullPath = pname.replace( '.', '/' ) + "/" + string;
stream = ctxt.findResource( possibleFullPath );
if( stream != null )
{
break;
}
}
}
}
}
if( stream == null )
{
stream = ctxt.findResource( string );
}
if( stream != null )
{
try
{
return ImageData.readFromStream( stream ).optional();
}
finally
{
try
{
stream.close();
}
catch( IOException e ) {}
}
}
return null;
}
}