/******************************************************************************
* 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.swt.internal;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gdfill;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gdhfill;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gdhspan;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.glayout;
import org.eclipse.sapphire.FilteredListener;
import org.eclipse.sapphire.ui.Presentation;
import org.eclipse.sapphire.ui.forms.FormComponentPart;
import org.eclipse.sapphire.ui.forms.FormPart;
import org.eclipse.sapphire.ui.forms.PageBookPart;
import org.eclipse.sapphire.ui.forms.PageBookPart.PageChangedEvent;
import org.eclipse.sapphire.ui.forms.swt.FormComponentPresentation;
import org.eclipse.sapphire.ui.forms.swt.SwtPresentation;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public class PageBookPresentation extends FormComponentPresentation
{
private Composite composite;
private Presentation currentPagePresentation;
public PageBookPresentation( final FormComponentPart part, final SwtPresentation parent, final Composite composite )
{
super( part, parent, composite );
}
@Override
public PageBookPart part()
{
return (PageBookPart) super.part();
}
@Override
public void render()
{
render( composite() );
}
protected void render( final Composite parent )
{
final PageBookPart part = part();
this.composite = new Composite( parent, SWT.NONE );
this.composite.setLayoutData( gdhspan( ( part.getScaleVertically() ? gdfill() : gdhfill() ), 2 ) );
this.composite.setLayout( glayout( 2, 0, 0 ) );
register( this.composite );
attachPartListener
(
new FilteredListener<PageChangedEvent>()
{
@Override
protected void handleTypedEvent( final PageChangedEvent event )
{
refreshActivePage();
}
}
);
refreshActivePage();
}
private void refreshActivePage()
{
if( this.currentPagePresentation != null )
{
this.currentPagePresentation.dispose();
this.currentPagePresentation = null;
}
for( final Control control : this.composite.getChildren() )
{
control.dispose();
}
final FormPart page = part().getCurrentPage();
if( page != null )
{
this.currentPagePresentation = page.createPresentation( this, this.composite );
this.currentPagePresentation.render();
}
if( ! disposed() )
{
layout();
}
}
@Override
public void refresh()
{
refreshActivePage();
}
@Override
public void dispose()
{
super.dispose();
if( this.currentPagePresentation != null )
{
this.currentPagePresentation.dispose();
this.currentPagePresentation = null;
}
this.composite = null;
}
}