/******************************************************************************
* 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 - [376266] Diagram delete all connection bend points action should be available in multi-select mode
* Ling Hao - [383924] Flexible diagram node shapes
******************************************************************************/
package org.eclipse.sapphire.ui.diagram.actions;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.sapphire.Event;
import org.eclipse.sapphire.FilteredListener;
import org.eclipse.sapphire.Listener;
import org.eclipse.sapphire.ui.ISapphirePart;
import org.eclipse.sapphire.ui.Presentation;
import org.eclipse.sapphire.ui.SapphireAction;
import org.eclipse.sapphire.ui.SapphireActionHandler;
import org.eclipse.sapphire.ui.SapphireEditorPagePart.SelectionChangedEvent;
import org.eclipse.sapphire.ui.def.ActionHandlerDef;
import org.eclipse.sapphire.ui.diagram.ConnectionBendpointsEvent;
import org.eclipse.sapphire.ui.diagram.DiagramConnectionPart;
import org.eclipse.sapphire.ui.diagram.editor.SapphireDiagramEditorPagePart;
/**
* @author <a href="mailto:shenxue.zhou@oracle.com">Shenxue Zhou</a>
* @author <a href="mailto:konstantin.komissarchik@oracle.com">Konstantin Komissarchik</a>
* @author <a href="mailto:ling.hao@oracle.com">Ling Hao</a>
*/
public class DeleteAllBendPointsForMultiplePartsActionHandler extends SapphireActionHandler
{
private List<DiagramConnectionPart> selectedConnectionParts = new ArrayList<DiagramConnectionPart>();
private Listener connectionPartListener;
public DeleteAllBendPointsForMultiplePartsActionHandler()
{
this.connectionPartListener = new FilteredListener<ConnectionBendpointsEvent>()
{
@Override
protected void handleTypedEvent(ConnectionBendpointsEvent event)
{
broadcast( new EnablementChangedEvent() );
}
};
}
@Override
public void init(SapphireAction action, ActionHandlerDef def)
{
super.init(action, def);
SapphireDiagramEditorPagePart part = (SapphireDiagramEditorPagePart) getPart();
part.attach(new Listener()
{
@Override
public void handle(final Event e)
{
if( e instanceof SelectionChangedEvent )
{
broadcast( new EnablementChangedEvent() );
refreshConnectionPartsListener();
}
}
});
refreshConnectionPartsListener();
}
@Override
public boolean isEnabled()
{
final SapphireDiagramEditorPagePart page = (SapphireDiagramEditorPagePart) getPart();
for( ISapphirePart selectedPart : page.getSelections() )
{
if( selectedPart instanceof DiagramConnectionPart )
{
if( ! ( (DiagramConnectionPart) selectedPart ).getBendpoints().isEmpty() )
{
return true;
}
}
}
return false;
}
@Override
protected Object run( final Presentation context)
{
final SapphireDiagramEditorPagePart page = (SapphireDiagramEditorPagePart) getPart();
for( ISapphirePart selectedPart : page.getSelections() )
{
if( selectedPart instanceof DiagramConnectionPart )
{
( (DiagramConnectionPart) selectedPart ).removeAllBendpoints();
}
}
return null;
}
private void refreshConnectionPartsListener()
{
for (DiagramConnectionPart connPart : this.selectedConnectionParts)
{
connPart.detach(this.connectionPartListener);
}
SapphireDiagramEditorPagePart pagePart = (SapphireDiagramEditorPagePart) getPart();
List<DiagramConnectionPart> newSelectedParts = new ArrayList<DiagramConnectionPart>();
for (ISapphirePart part : pagePart.getSelections())
{
if (part instanceof DiagramConnectionPart)
{
newSelectedParts.add((DiagramConnectionPart)part);
((DiagramConnectionPart) part).attach(this.connectionPartListener);
}
}
this.selectedConnectionParts.clear();
this.selectedConnectionParts.addAll(newSelectedParts);
}
}