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/*****************************************************************************
* Copyright (c) 2017 CEA LIST and others.
*
* 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
import java.util.ArrayList;
import org.eclipse.draw2d.geometry.Dimension;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.ConnectionEditPart;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.RequestConstants;
import org.eclipse.gef.commands.CompoundCommand;
import org.eclipse.gef.editpolicies.GraphicalEditPolicy;
import org.eclipse.gef.requests.ChangeBoundsRequest;
import org.eclipse.gef.requests.ReconnectRequest;
import org.eclipse.gmf.runtime.draw2d.ui.figures.PolylineConnectionEx;
import org.eclipse.papyrus.uml.diagram.sequence.keyboardlistener.IKeyPressState;
import org.eclipse.papyrus.uml.diagram.sequence.keyboardlistener.KeyboardListener;
import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceUtil;
import org.eclipse.swt.SWT;
import org.eclipse.ui.PlatformUI;
/**
* the goal of this editpat is to propose a set of method and action by SHIFT key button to move messages and execution spec under the current editpart
*
* @since 4.0
*
*/
public abstract class UpdateWeakReferenceEditPolicy extends GraphicalEditPolicy implements IKeyPressState {
protected KeyboardListener SHIFTDown = new KeyboardListener(this, SWT.SHIFT, true);
protected KeyboardListener SHIFTUp = new KeyboardListener(this, SWT.SHIFT, false);
protected boolean mustMove = true;
/**
* Constructor.
*
*/
public UpdateWeakReferenceEditPolicy() {
super();
}
@Override
public void activate() {
super.activate();
// activate listeners
PlatformUI.getWorkbench().getDisplay().addFilter(SWT.KeyDown, SHIFTDown);
PlatformUI.getWorkbench().getDisplay().addFilter(SWT.KeyUp, SHIFTUp);
}
@Override
public void deactivate() {
PlatformUI.getWorkbench().getDisplay().removeFilter(SWT.KeyDown, SHIFTDown);
PlatformUI.getWorkbench().getDisplay().removeFilter(SWT.KeyUp, SHIFTUp);
super.deactivate();
}
/**
* Add a command of reconnection of the given connection editpart at the location.
*
* @param hostEditpart
* the current editpart that is the origin of this impact
* @param connectionEditPart
* the given editpart to move
* @param location
* the next location of the anchor
* @param senderList
* the list of editpart that are origin of this request
* @param reconnectType
* the type of the reconnection see {@link RequestConstants}
* @return return a request of reconnection
*/
protected static ReconnectRequest createReconnectRequest(EditPart hostEditpart, ConnectionEditPart connectionEditPart, Rectangle location, ArrayList<EditPart> senderList, String reconnectType) {
ReconnectRequest reconnectRequest = new ReconnectRequest();
reconnectRequest.setConnectionEditPart(connectionEditPart);
SenderRequestUtils.addRequestSenders(reconnectRequest, senderList);
SenderRequestUtils.addRequestSender(reconnectRequest, hostEditpart);
reconnectRequest.setLocation(location.getLocation().getCopy());
reconnectRequest.setType(reconnectType);
if (RequestConstants.REQ_RECONNECT_TARGET.equals(reconnectType)) {
reconnectRequest.setTargetEditPart(connectionEditPart.getTarget());
} else {
reconnectRequest.setTargetEditPart(connectionEditPart.getSource());
}
return reconnectRequest;
}
@Override
public void setKeyPressState(Boolean isPressed) {
mustMove = !isPressed;
}
/**
* Move the editPart to move at this location withe the move delta
*
* @param moveDelta
* the move delta (very important)
* @param compoundCommand
* the command that will contain the result of the request
* @param editPartToMove
* the editpart to move
*/
protected static void moveRoundedEditPart(EditPart hostEditPart, Point moveDelta, CompoundCommand compoundCommand, EditPart editPartToMove, ArrayList<EditPart> senderList) {
ChangeBoundsRequest changeBoundsRequest = new ChangeBoundsRequest(RequestConstants.REQ_MOVE);
SenderRequestUtils.addRequestSenders(changeBoundsRequest, senderList);
SenderRequestUtils.addRequestSender(changeBoundsRequest, hostEditPart);
GraphicalEditPart gEditPart = (GraphicalEditPart) editPartToMove;
changeBoundsRequest.setLocation(new Point(gEditPart.getFigure().getBounds().getTopLeft().x, gEditPart.getFigure().getBounds().getTopLeft().x + moveDelta.y()));
changeBoundsRequest.setEditParts(editPartToMove);
changeBoundsRequest.setMoveDelta(moveDelta);
changeBoundsRequest.setSizeDelta(new Dimension(0, 0));
compoundCommand.add(editPartToMove.getCommand(changeBoundsRequest));
}
/**
* move the target anchor of the connection editpartPart
*
* @param hostEditPart
* the editpart that impacts the connection editpart
* @param moveDelta
* the delta to move the anchors
* @param compoundCommand
* the compound command that can have the result of the request
* @param connectionEditPart
* the editpart to move
* @param senderList
* the list of editpart that are origin of this move
*/
protected static void moveTargetConnectionEditPart(EditPart hostEditPart, Point moveDelta, CompoundCommand compoundCommand, ConnectionEditPart connectionEditPart, ArrayList<EditPart> senderList) {
PolylineConnectionEx polyline = (PolylineConnectionEx) connectionEditPart.getFigure();
Rectangle newAnchorPositionOnScreen;
Point positiononScreen = polyline.getTargetAnchor().getReferencePoint();
newAnchorPositionOnScreen = new Rectangle(positiononScreen.x, positiononScreen.y + moveDelta.y, 0, 0);
ReconnectRequest reconnectTargetRequest = createReconnectRequest(hostEditPart, connectionEditPart, newAnchorPositionOnScreen, senderList, RequestConstants.REQ_RECONNECT_TARGET);
reconnectTargetRequest.getExtendedData().put(SequenceUtil.DO_NOT_CHECK_HORIZONTALITY, true);
compoundCommand.add(connectionEditPart.getTarget().getCommand(reconnectTargetRequest));
}
protected static void moveSourceConnectionEditPart(EditPart hostEditPart, Point moveDelta, CompoundCommand compoundCommand, ConnectionEditPart connectionEditPart, ArrayList<EditPart> senderList) {
PolylineConnectionEx polyline = (PolylineConnectionEx) connectionEditPart.getFigure();
Point anchorPositionOnScreen = polyline.getSourceAnchor().getReferencePoint();
Rectangle newAnchorPositionOnScreen = new Rectangle(anchorPositionOnScreen.x, anchorPositionOnScreen.y + moveDelta.y, 0, 0);
ReconnectRequest reconnectSourceRequest = createReconnectRequest(hostEditPart, connectionEditPart, newAnchorPositionOnScreen, senderList, RequestConstants.REQ_RECONNECT_SOURCE);
reconnectSourceRequest.getExtendedData().put(SequenceUtil.DO_NOT_CHECK_HORIZONTALITY, true);
compoundCommand.add(connectionEditPart.getSource().getCommand(reconnectSourceRequest));
}
}
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