/* $Id: SelectionClassifierRole.java 17875 2010-01-12 21:02:56Z linus $
*****************************************************************************
* Copyright (c) 2009 Contributors - see below
* 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:
* bobtarling
*****************************************************************************
*
* Some portions of this file was previously release using the BSD License:
*/
// Copyright (c) 2008 The Regents of the University of California. All
// Rights Reserved. Permission to use, copy, modify, and distribute this
// software and its documentation without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph appear in all copies. This software program and
// documentation are copyrighted by The Regents of the University of
// California. The software program and documentation are supplied "AS
// IS", without any accompanying services from The Regents. The Regents
// does not warrant that the operation of the program will be
// uninterrupted or error-free. The end-user understands that the program
// was developed for research purposes and is advised not to rely
// exclusively on the program for any reason. IN NO EVENT SHALL THE
// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
package org.argouml.sequence2.diagram;
import java.awt.Polygon;
import java.util.HashMap;
import java.util.List;
import javax.swing.Icon;
import org.argouml.model.Model;
import org.argouml.uml.diagram.ui.SelectionNodeClarifiers2;
import org.tigris.gef.presentation.Fig;
import org.tigris.gef.presentation.Handle;
/**
* A custom select object to handle the special requirements of reshaping a
* classifier role.
*
* @author Bob Tarling
*/
class SelectionClassifierRole extends SelectionNodeClarifiers2 {
/**
* The constructor.
*
* @param f
* the fig
*/
public SelectionClassifierRole(Fig f) {
super(f);
}
/**
* Makes sure that dragging on the CR keeps them all aligned and resizing
* doesn't force FigMessages overlaying.
*
* @param mX
* New X position (aka current mouse X position)
* @param mY
* New Y position (aka current mouse Y position)
* @param anX
* Old X position
* @param anY
* Old Y position
* @param hand
* The handle being dragged
*/
@Override
public void dragHandle(int mX, int mY, int anX, int anY, Handle hand) {
if (!getContent().isResizable()) {
return;
}
final List<Fig> figs = getContent().getLayer().getContents();
int minimumHeight = 0;
for (Fig workOnFig : figs) {
if (workOnFig instanceof FigClassifierRole
&& workOnFig.getMinimumSize().height > minimumHeight) {
minimumHeight = workOnFig.getMinimumSize().height;
}
}
int deltaY = mY - getContent().getY();
// vertical resizing
switch (hand.index) {
case Handle.NORTHWEST:
case Handle.NORTH:
case Handle.NORTHEAST:
int newHeight = getContent().getHeight() - deltaY;
if (newHeight < minimumHeight) {
newHeight = minimumHeight;
deltaY = getContent().getHeight() - newHeight;
}
final HashMap<Fig, Polygon> polygonsByFig =
new HashMap<Fig, Polygon>();
// There is a bug in GEF where positioning nodes can affect
// edge positions. We need to do 3 iterations to protect
// against that.
// 1. Remember current message paths
for (Fig workOnFig : figs) {
if (workOnFig instanceof FigMessage &&
!((FigMessage) workOnFig).isSelfMessage()) {
polygonsByFig.put(
workOnFig,
((FigMessage) workOnFig).getPolygon());
}
}
// 2. Reposition and resize nodes
for (Fig workOnFig : figs) {
if (workOnFig instanceof FigClassifierRole) {
workOnFig.setHeight(newHeight);
workOnFig.translate(0, deltaY);
}
}
// 3. Now reposition messages based on their original position
for (Fig workOnFig : figs) {
if (workOnFig instanceof FigMessage) {
if (((FigMessage) workOnFig).isSelfMessage()) {
((FigMessageSpline) ((FigMessage) workOnFig).getFig())
.translateFig(0, deltaY);
} else {
polygonsByFig.get(workOnFig).translate(0, deltaY);
((FigMessage) workOnFig).setPolygon(
polygonsByFig.get(workOnFig));
}
}
}
break;
case Handle.SOUTH:
case Handle.SOUTHEAST:
case Handle.SOUTHWEST:
newHeight = deltaY;
if (newHeight < minimumHeight) {
newHeight = minimumHeight;
}
for (Fig workOnFig : figs) {
if (workOnFig instanceof FigClassifierRole) {
workOnFig.setHeight(newHeight);
}
}
default:
}
final Fig workOnFig = getContent();
int oldCenterX = 0;
int newCenterX = 0;
// Compute the initial center position of the CR
if (workOnFig instanceof FigClassifierRole) {
FigClassifierRole f = (FigClassifierRole) workOnFig;
oldCenterX = f.getWidth() / 2 + f.getX();
}
// horizontal resizing
switch (hand.index) {
case Handle.NORTHWEST:
case Handle.SOUTHWEST:
workOnFig.setWidth(workOnFig.getX() - mX + workOnFig.getWidth());
workOnFig.setX(mX);
break;
case Handle.NORTHEAST:
case Handle.SOUTHEAST:
workOnFig.setWidth(mX - workOnFig.getX());
break;
default:
}
// Compute the final center position of the CR
if (workOnFig instanceof FigClassifierRole) {
FigClassifierRole f = (FigClassifierRole) workOnFig;
newCenterX = f.getWidth() / 2 + f.getX();
}
// Self messages act differently so it is needed to move them separetly.
// Only self messages of selected CR should be horizontally translated.
for (Fig fig : figs) {
if (fig instanceof FigMessage && ((FigMessage) fig).isSelfMessage()
&& Model.getCoreHelper().getDestination(fig.getOwner()).
equals(workOnFig.getOwner())) {
((FigMessageSpline) ((FigMessage) fig).getFig())
.translateFig(newCenterX - oldCenterX, 0);
}
}
}
@Override
protected Object getNewNode(int index) {
return null;
}
@Override
protected Icon[] getIcons() {
return null;
}
@Override
protected String getInstructions(int index) {
return null;
}
@Override
protected Object getNewEdgeType(int index) {
return null;
}
@Override
protected Object getNewNodeType(int index) {
return null;
}
}