/*******************************************************************************
* Copyright (c) 2009 the CHISEL group and contributors.
* 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:
* Del Myers -- initial API and implementation
*******************************************************************************/
package org.eclipse.zest.custom.sequence.figures.internal;
import java.util.Iterator;
import org.eclipse.draw2d.Figure;
import org.eclipse.draw2d.FreeformFigure;
import org.eclipse.draw2d.FreeformListener;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.TreeSearch;
import org.eclipse.draw2d.geometry.Point;
import org.eclipse.draw2d.geometry.Rectangle;
/**
* @author Del Myers
*
*/
public class QuickClearFreeformLayer extends QuickClearingFigure implements FreeformFigure {
private FreeformHelper helper = new FreeformHelper(this);
/**
* @see FreeformFigure#addFreeformListener(FreeformListener)
*/
public void addFreeformListener(FreeformListener listener) {
addListener(FreeformListener.class, listener);
}
/**
* @see FreeformFigure#fireExtentChanged()
*/
public void fireExtentChanged() {
Iterator<?> iter = getListeners(FreeformListener.class);
while (iter.hasNext())
((FreeformListener)iter.next())
.notifyFreeformExtentChanged();
}
/**
* Overrides to do nothing.
* @see Figure#fireMoved()
*/
protected void fireMoved() { }
/**
* @see FreeformFigure#getFreeformExtent()
*/
public Rectangle getFreeformExtent() {
return helper.getFreeformExtent();
}
/**
* @see Figure#primTranslate(int, int)
*/
public void primTranslate(int dx, int dy) {
bounds.x += dx;
bounds.y += dy;
}
/* (non-Javadoc)
* @see org.eclipse.draw2d.Figure#add(org.eclipse.draw2d.IFigure, java.lang.Object, int)
*/
@Override
public void add(IFigure figure, Object constraint, int index) {
super.add(figure, constraint, index);
helper.hookChild(figure);
}
/**
* @see IFigure#remove(IFigure)
*/
public void remove(IFigure child) {
helper.unhookChild(child);
super.remove(child);
}
/**
* @see FreeformFigure#removeFreeformListener(FreeformListener)
*/
public void removeFreeformListener(FreeformListener listener) {
removeListener(FreeformListener.class, listener);
}
/**
* @see FreeformFigure#setFreeformBounds(Rectangle)
*/
public void setFreeformBounds(Rectangle bounds) {
helper.setFreeformBounds(bounds);
}
/**
* Overridden to implement transparent behavior.
* @see IFigure#containsPoint(int, int)
*
*/
public boolean containsPoint(int x, int y) {
if (isOpaque())
return super.containsPoint(x, y);
Point pt = new Point(x, y);
translateFromParent(pt);
for (int i = 0; i < getChildren().size(); i++) {
IFigure child = (IFigure)getChildren().get(i);
if (child.containsPoint(pt.x, pt.y))
return true;
}
return false;
}
/**
* Overridden to implement transparency.
* @see IFigure#findFigureAt(int, int, TreeSearch)
*/
public IFigure findFigureAt(int x, int y, TreeSearch search) {
if (!isEnabled())
return null;
if (isOpaque())
return super.findFigureAt(x, y, search);
IFigure f = super.findFigureAt(x, y, search);
if (f == this)
return null;
return f;
}
}