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/*******************************************************************************
* Copyright (c) 2007, 2010 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.jpa.ui.internal.wizards.gen;
import java.util.List;
import org.eclipse.draw2d.ActionEvent;
import org.eclipse.draw2d.ActionListener;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.FigureCanvas;
import org.eclipse.draw2d.LineBorder;
import org.eclipse.draw2d.ToolbarLayout;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jpt.jpa.gen.internal.Association;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
/**
* A Draw2d figure representing list of associations between two database tables
*
*/
public class AssociationsListComposite extends FigureCanvas {
List<Association> associations;
AssociationToggleSelectionListener listener ;
TableAssociationsWizardPage tableAssociationsWizardPage; //the parent wizard page
AssociationFigure selectedAssociationFigure ;
protected final ResourceManager resourceManager;
public AssociationsListComposite(Composite parent, TableAssociationsWizardPage tableAssociationsWizardPage, ResourceManager resourceManager){
super(parent);
this.tableAssociationsWizardPage = tableAssociationsWizardPage;
this.resourceManager = resourceManager;
setBounds(10, 10 , 500, 200);
Color backgroundColor = new Color(Display.getDefault(), 255,255,255);
setBackground(backgroundColor);
backgroundColor.dispose();
Figure figure = new Figure();
figure.setLayoutManager(new ToolbarLayout());
figure.setBorder(new LineBorder(1));
this.listener = new AssociationToggleSelectionListener();
this.setContents(figure);
}
public void updateAssociations(List<Association> associations){
Figure figure = (Figure)this.getContents();
this.disposeFigure(figure);
this.associations = associations;
if( associations != null ){
for( int i = 0; i <associations.size(); i ++ ){
Association association = associations.get(i);
AssociationFigure assocFigure = new AssociationFigure(association, this.resourceManager);
assocFigure.addActionListener( listener );
figure.add(assocFigure);
}
}
}
public Association getSelectedAssociation(){
return this.selectedAssociationFigure.getAssociation();
}
@SuppressWarnings("unchecked")
public void updateSelectedAssociation(){
Figure figure = (Figure)this.getContents();
List<AssociationFigure> associationFigures = figure.getChildren();
for(AssociationFigure assocFig : associationFigures){
if( assocFig == this.selectedAssociationFigure){
assocFig.update();
}
}
}
/**
* Get the association just before the selected one in UI
* @return
*/
@SuppressWarnings("unchecked")
public Association getPreviousAssociation(){
Figure figure = (Figure)this.getContents();
List<AssociationFigure> associationFigures = figure.getChildren();
AssociationFigure ret = null;
for(AssociationFigure assocFig : associationFigures){
if( assocFig.isSelected() ){
break;
}
ret = assocFig;
}
return ret==null?null:ret.getAssociation();
}
@Override
public void dispose() {
this.disposeFigure((Figure) getContents());
super.dispose();
}
@SuppressWarnings("unchecked")
protected void disposeFigure(Figure figure) {
for (AssociationFigure associationFigure : (List<AssociationFigure>) figure.getChildren()) {
associationFigure.removeActionListener(this.listener);
associationFigure.dispose();
}
figure.removeAll();
this.selectedAssociationFigure = null;
}
class AssociationToggleSelectionListener implements ActionListener {
public void actionPerformed(ActionEvent event) {
AssociationFigure figure = (AssociationFigure )event.getSource() ;
figure.setSelected(true);
Association association = figure.getAssociation();
tableAssociationsWizardPage.updateAssociationEditPanel(association);
//un-select the previous selected
if( selectedAssociationFigure != null && selectedAssociationFigure!= figure ){
selectedAssociationFigure.setSelected( false );
}
//Highlight new selection
selectedAssociationFigure = figure;
selectedAssociationFigure.setSelected( true );
}
}
}
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