/******************************************************************************
* 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.forms.internal;
import org.eclipse.sapphire.FilteredListener;
import org.eclipse.sapphire.ImageData;
import org.eclipse.sapphire.ImageService;
import org.eclipse.sapphire.Listener;
import org.eclipse.sapphire.PropertyContentEvent;
import org.eclipse.sapphire.ui.def.Orientation;
import org.eclipse.sapphire.ui.forms.SplitFormDef;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class SplitFormDefImageService extends ImageService
{
private static final ImageData IMG_HORIZONTAL_2 = ImageData.readFromClassLoader( SplitFormDef.class, "SplitFormDef-Horizontal-2.png" ).required();
private static final ImageData IMG_HORIZONTAL_3 = ImageData.readFromClassLoader( SplitFormDef.class, "SplitFormDef-Horizontal-3.png" ).required();
private static final ImageData IMG_VERTICAL_2 = ImageData.readFromClassLoader( SplitFormDef.class, "SplitFormDef-Vertical-2.png" ).required();
private static final ImageData IMG_VERTICAL_3 = ImageData.readFromClassLoader( SplitFormDef.class, "SplitFormDef-Vertical-3.png" ).required();
private Listener listener;
@Override
protected void initImageService()
{
this.listener = new FilteredListener<PropertyContentEvent>()
{
@Override
protected void handleTypedEvent( final PropertyContentEvent event )
{
refresh();
}
};
final SplitFormDef def = context( SplitFormDef.class );
def.getSections().attach( this.listener );
def.getOrientation().attach( this.listener );
}
@Override
protected ImageData compute()
{
final SplitFormDef def = context( SplitFormDef.class );
if( def.getOrientation().content() == Orientation.HORIZONTAL )
{
if( def.getSections().size() > 2 )
{
return IMG_HORIZONTAL_3;
}
else
{
return IMG_HORIZONTAL_2;
}
}
else
{
if( def.getSections().size() > 2 )
{
return IMG_VERTICAL_3;
}
else
{
return IMG_VERTICAL_2;
}
}
}
@Override
public void dispose()
{
super.dispose();
if( this.listener != null )
{
final SplitFormDef def = context( SplitFormDef.class );
if( ! def.disposed() )
{
def.getSections().detach( this.listener );
def.getOrientation().detach( this.listener );
}
this.listener = null;
}
}
}