/******************************************************************************
* 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.modeling.util.MiscUtil.EMPTY_STRING;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gd;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gdhalign;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gdhindent;
import static org.eclipse.sapphire.ui.forms.swt.GridLayoutUtil.gdhspan;
import org.eclipse.sapphire.Event;
import org.eclipse.sapphire.ImageData;
import org.eclipse.sapphire.Listener;
import org.eclipse.sapphire.modeling.CapitalizationType;
import org.eclipse.sapphire.ui.SapphireActionGroup;
import org.eclipse.sapphire.ui.SapphireActionHandler;
import org.eclipse.sapphire.ui.SapphirePart.ImageChangedEvent;
import org.eclipse.sapphire.ui.SapphirePart.LabelChangedEvent;
import org.eclipse.sapphire.ui.def.HorizontalAlignment;
import org.eclipse.sapphire.ui.forms.ActuatorDef;
import org.eclipse.sapphire.ui.forms.ActuatorPart;
import org.eclipse.sapphire.ui.forms.ActuatorPart.EnablementChangedEvent;
import org.eclipse.sapphire.ui.forms.FormComponentPart;
import org.eclipse.sapphire.ui.forms.swt.SapphireActionPresentationManager;
import org.eclipse.sapphire.ui.forms.swt.SapphireKeyboardActionPresentation;
import org.eclipse.sapphire.ui.forms.swt.SwtPresentation;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
/**
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
*/
public final class ActuatorButtonPresentation extends ActuatorPresentation
{
private SapphireActionPresentationManager actionPresentationManager;
public ActuatorButtonPresentation( final FormComponentPart part, final SwtPresentation parent, final Composite composite )
{
super( part, parent, composite );
}
@Override
public void render()
{
final ActuatorPart part = part();
final ActuatorDef def = part.definition();
final SapphireActionGroup actions = part.getActions();
this.actionPresentationManager = new SapphireActionPresentationManager( this, actions );
final SapphireKeyboardActionPresentation keyboardActionPresentation = new SapphireKeyboardActionPresentation( this.actionPresentationManager );
final HorizontalAlignment hAlign = def.getHorizontalAlignment().content();
final int hAlignCode = ( hAlign == HorizontalAlignment.LEFT ? SWT.LEFT : ( hAlign == HorizontalAlignment.RIGHT ? SWT.RIGHT : SWT.CENTER ) );
final int hSpan = ( def.getSpanBothColumns().content() ? 2 : 1 );
if( hSpan == 1 )
{
final Label spacer = new Label( composite(), SWT.NONE );
spacer.setLayoutData( gd() );
spacer.setText( EMPTY_STRING );
register( spacer );
}
final Button button = new Button( composite(), SWT.PUSH );
button.setLayoutData( gdhspan( gdhindent( gdhalign( gd(), hAlignCode ), 8 ), hSpan ) );
register( button );
keyboardActionPresentation.attach( button );
final String label = part.label( CapitalizationType.TITLE_STYLE, true );
if( label != null )
{
button.setText( label );
}
final ImageData image = part.image( 16 );
if( image != null )
{
button.setImage( resources().image( image ) );
}
button.addSelectionListener
(
new SelectionAdapter()
{
@Override
public void widgetSelected( SelectionEvent e )
{
final SapphireActionHandler handler = part.handler();
if( handler != null )
{
handler.execute( ActuatorButtonPresentation.this );
}
}
}
);
button.setEnabled( part.enabled() );
attachPartListener
(
new Listener()
{
@Override
public void handle( final Event event )
{
if( event instanceof EnablementChangedEvent )
{
button.setEnabled( part.enabled() );
}
else if( event instanceof LabelChangedEvent )
{
final String label = part.label( CapitalizationType.TITLE_STYLE );
button.setText( label == null ? EMPTY_STRING : label );
button.getParent().layout( true, true );
}
else if( event instanceof ImageChangedEvent )
{
button.setImage( resources().image( part.image( 16 ) ) );
}
}
}
);
keyboardActionPresentation.render();
}
@Override
public void dispose()
{
super.dispose();
if( this.actionPresentationManager != null )
{
this.actionPresentationManager.dispose();
this.actionPresentationManager = null;
}
}
}