/*
* (c) Copyright 2010-2011 AgileBirds
*
* This file is part of OpenFlexo.
*
* OpenFlexo is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* OpenFlexo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
*
*/
package org.openflexo.dm.view.erdiagram;
import java.awt.Color;
import java.util.Hashtable;
import java.util.logging.Logger;
import org.openflexo.fge.DefaultDrawing;
import org.openflexo.fge.DrawingGraphicalRepresentation;
import org.openflexo.fge.GraphicalRepresentation;
import org.openflexo.foundation.DataModification;
import org.openflexo.foundation.FlexoObservable;
import org.openflexo.foundation.GraphicalFlexoObserver;
import org.openflexo.foundation.dm.DMEntity;
import org.openflexo.foundation.dm.DMProperty;
import org.openflexo.foundation.dm.DMType;
import org.openflexo.foundation.dm.ERDiagram;
import org.openflexo.foundation.dm.dm.EntityAddedToDiagram;
import org.openflexo.foundation.dm.dm.EntityRemovedFromDiagram;
public class ERDiagramRepresentation extends DefaultDrawing<ERDiagram> implements GraphicalFlexoObserver, ERDiagramConstants {
private static final Logger logger = Logger.getLogger(ERDiagramRepresentation.class.getPackage().getName());
private DrawingGraphicalRepresentation<ERDiagram> graphicalRepresentation;
public ERDiagramRepresentation(ERDiagram aDiagram) {
super(aDiagram);
graphicalRepresentation = new DrawingGraphicalRepresentation<ERDiagram>(this);
graphicalRepresentation.setBackgroundColor(new Color(255, 255, 204));
graphicalRepresentation.addToMouseClickControls(new ERDiagramController.ShowContextualMenuControl());
aDiagram.addObserver(this);
updateGraphicalObjectsHierarchy();
}
@Override
public void delete() {
getDiagram().deleteObserver(this);
super.delete();
}
@Override
protected void buildGraphicalObjectsHierarchy() {
for (DMEntity entity : getDiagram().getEntities()) {
addDrawable(entity, getDiagram());
for (DMProperty property : entity.getOrderedProperties()) {
addDrawable(property, entity);
}
}
for (DMEntity entity : getDiagram().getEntities()) {
for (DMProperty property : entity.getOrderedProperties()) {
if (isRelationship(property) && !relationshipForProperty(property).isInverseDeclaration(property)) {
addDrawable(relationshipForProperty(property), getDiagram());
}
}
if (isSpecializationRepresentable(entity, entity.getParentType())) {
addDrawable(specializationForEntity(entity, entity.getParentType()), getDiagram());
}
for (DMType t : entity.getImplementedTypes()) {
if (isSpecializationRepresentable(entity, t)) {
addDrawable(specializationForEntity(entity, t), getDiagram());
}
}
}
}
public ERDiagram getDiagram() {
return getModel();
}
@Override
public DrawingGraphicalRepresentation<ERDiagram> getDrawingGraphicalRepresentation() {
return graphicalRepresentation;
}
@SuppressWarnings("unchecked")
@Override
public <O> GraphicalRepresentation<O> retrieveGraphicalRepresentation(O aDrawable) {
return (GraphicalRepresentation<O>) buildGraphicalRepresentation(aDrawable);
}
private boolean isRelationship(DMProperty property) {
if (property.getType() != null && property.getType().getBaseEntity() != null
&& getDiagram().getEntities().contains(property.getType().getBaseEntity())) {
// This is a relation !
return true;
} else {
return false;
}
}
private boolean isSpecializationRepresentable(DMEntity entity, DMType type) {
return entity != null && type != null && type.getBaseEntity() != null && getDiagram().getEntities().contains(type.getBaseEntity());
}
private GraphicalRepresentation<?> buildGraphicalRepresentation(Object aDrawable) {
if (aDrawable instanceof DMEntity) {
return new DMEntityGR((DMEntity) aDrawable, this);
} else if (aDrawable instanceof DMProperty) {
return new DMPropertyGR((DMProperty) aDrawable, this);
} else if (aDrawable instanceof RelationshipRepresentation) {
return new DMRelationshipGR((RelationshipRepresentation) aDrawable, this);
} else if (aDrawable instanceof EntitySpecialization) {
return new EntitySpecializationGR((EntitySpecialization) aDrawable, this);
}
logger.warning("Cannot build GraphicalRepresentation for " + aDrawable);
return null;
}
@Override
public void update(FlexoObservable observable, DataModification dataModification) {
if (observable == getDiagram()) {
// logger.info("Notified "+dataModification);
if (dataModification instanceof EntityAddedToDiagram) {
updateGraphicalObjectsHierarchy();
} else if (dataModification instanceof EntityRemovedFromDiagram) {
updateGraphicalObjectsHierarchy();
}
}
}
private Hashtable<DMProperty, RelationshipRepresentation> relationships = new Hashtable<DMProperty, RelationshipRepresentation>();
protected RelationshipRepresentation relationshipForProperty(DMProperty property) {
RelationshipRepresentation returned = relationships.get(property);
if (returned == null) {
returned = new RelationshipRepresentation(property);
relationships.put(property, returned);
if (returned.getInverseProperty() != null) {
// Also register inverse
relationships.put(returned.getInverseProperty(), returned);
}
}
return returned;
}
private Hashtable<DMEntity, Hashtable<DMType, EntitySpecialization>> specializations = new Hashtable<DMEntity, Hashtable<DMType, EntitySpecialization>>();
protected EntitySpecialization specializationForEntity(DMEntity entity, DMType type) {
Hashtable<DMType, EntitySpecialization> specializationsForEntity = specializations.get(entity);
if (specializationsForEntity == null) {
specializationsForEntity = new Hashtable<DMType, EntitySpecialization>();
specializations.put(entity, specializationsForEntity);
}
EntitySpecialization returned = specializationsForEntity.get(type);
if (returned == null) {
returned = new EntitySpecialization(entity, type);
specializationsForEntity.put(type, returned);
}
return returned;
}
}