/*******************************************************************************
* Copyright (c) 2011 Red Hat, Inc.
* All rights reserved.
* This program is 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:
* Red Hat, Inc. - initial API and implementation
******************************************************************************/
package org.eclipse.bpmn2.modeler.ui.features.gateway;
import org.eclipse.bpmn2.modeler.core.features.BaseElementFeatureContainer;
import org.eclipse.bpmn2.modeler.core.features.MoveFlowNodeFeature;
import org.eclipse.bpmn2.modeler.core.features.UpdateBaseElementNameFeature;
import org.eclipse.bpmn2.modeler.core.utils.GraphicsUtil;
import org.eclipse.bpmn2.modeler.ui.features.AbstractDefaultDeleteFeature;
import org.eclipse.bpmn2.modeler.ui.features.LayoutBaseElementTextFeature;
import org.eclipse.graphiti.features.IDeleteFeature;
import org.eclipse.graphiti.features.IDirectEditingFeature;
import org.eclipse.graphiti.features.IFeatureProvider;
import org.eclipse.graphiti.features.ILayoutFeature;
import org.eclipse.graphiti.features.IMoveShapeFeature;
import org.eclipse.graphiti.features.IReason;
import org.eclipse.graphiti.features.IResizeShapeFeature;
import org.eclipse.graphiti.features.IUpdateFeature;
import org.eclipse.graphiti.features.context.IResizeShapeContext;
import org.eclipse.graphiti.features.context.IUpdateContext;
import org.eclipse.graphiti.features.context.impl.UpdateContext;
import org.eclipse.graphiti.features.impl.DefaultResizeShapeFeature;
import org.eclipse.graphiti.mm.pictograms.Anchor;
import org.eclipse.graphiti.mm.pictograms.Connection;
import org.eclipse.graphiti.mm.pictograms.ContainerShape;
public abstract class AbstractGatewayFeatureContainer extends BaseElementFeatureContainer {
@Override
public IUpdateFeature getUpdateFeature(IFeatureProvider fp) {
return new UpdateAbstractGatewayFeature(fp);
}
@Override
public IDirectEditingFeature getDirectEditingFeature(IFeatureProvider fp) {
return null; // TODO
}
@Override
public ILayoutFeature getLayoutFeature(IFeatureProvider fp) {
return new LayoutBaseElementTextFeature(fp) {
@Override
public int getMinimumWidth() {
return 2 * GraphicsUtil.GATEWAY_RADIUS;
}
};
}
@Override
public IMoveShapeFeature getMoveFeature(IFeatureProvider fp) {
return new MoveFlowNodeFeature(fp);
}
@Override
public IResizeShapeFeature getResizeFeature(IFeatureProvider fp) {
return new DefaultResizeShapeFeature(fp) {
@Override
public boolean canResizeShape(IResizeShapeContext context) {
return false;
}
};
}
@Override
public IDeleteFeature getDeleteFeature(IFeatureProvider fp) {
return new AbstractDefaultDeleteFeature(fp);
}
private class UpdateAbstractGatewayFeature extends UpdateBaseElementNameFeature {
public UpdateAbstractGatewayFeature(IFeatureProvider fp) {
super(fp);
// TODO Auto-generated constructor stub
}
@Override
public boolean canUpdate(IUpdateContext context) {
IFeatureProvider featureProvider = getDiagramEditor().getDiagramTypeProvider().getFeatureProvider();
ContainerShape gatewayShape = (ContainerShape) context.getPictogramElement();
for (Anchor anchor : gatewayShape.getAnchors()) {
for (Connection connection : anchor.getIncomingConnections() ) {
IUpdateContext updateCtx = new UpdateContext(connection);
IUpdateFeature updateFeature = featureProvider.getUpdateFeature(updateCtx);
if (updateFeature != null) {
boolean ret = updateFeature.canUpdate(updateCtx);
if (ret)
return ret;
}
}
for (Connection connection : anchor.getOutgoingConnections() ) {
IUpdateContext updateCtx = new UpdateContext(connection);
IUpdateFeature updateFeature = featureProvider.getUpdateFeature(updateCtx);
if (updateFeature != null) {
boolean ret = updateFeature.canUpdate(updateCtx);
if (ret)
return ret;
}
}
}
return super.canUpdate(context);
}
@Override
public IReason updateNeeded(IUpdateContext context) {
IFeatureProvider featureProvider = getDiagramEditor().getDiagramTypeProvider().getFeatureProvider();
ContainerShape gatewayShape = (ContainerShape) context.getPictogramElement();
for (Anchor anchor : gatewayShape.getAnchors()) {
for (Connection connection : anchor.getIncomingConnections() ) {
IUpdateContext updateCtx = new UpdateContext(connection);
IUpdateFeature updateFeature = featureProvider.getUpdateFeature(updateCtx);
if (updateFeature != null) {
IReason ret = updateFeature.updateNeeded(updateCtx);
if (ret.toBoolean())
return ret;
}
}
for (Connection connection : anchor.getOutgoingConnections() ) {
IUpdateContext updateCtx = new UpdateContext(connection);
IUpdateFeature updateFeature = featureProvider.getUpdateFeature(updateCtx);
if (updateFeature != null) {
IReason ret = updateFeature.updateNeeded(updateCtx);
if (ret.toBoolean())
return ret;
}
}
}
return super.updateNeeded(context);
}
@Override
public boolean update(IUpdateContext context) {
IFeatureProvider featureProvider = getDiagramEditor().getDiagramTypeProvider().getFeatureProvider();
ContainerShape gatewayShape = (ContainerShape) context.getPictogramElement();
for (Anchor anchor : gatewayShape.getAnchors()) {
for (Connection connection : anchor.getIncomingConnections() ) {
IUpdateContext updateCtx = new UpdateContext(connection);
IUpdateFeature updateFeature = featureProvider.getUpdateFeature(updateCtx);
if (updateFeature != null) {
updateFeature.update(updateCtx);
}
}
for (Connection connection : anchor.getOutgoingConnections() ) {
IUpdateContext updateCtx = new UpdateContext(connection);
IUpdateFeature updateFeature = featureProvider.getUpdateFeature(updateCtx);
if (updateFeature != null) {
updateFeature.update(updateCtx);
}
}
}
return super.update(context);
}
}
}