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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* 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:
* Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.properties.runtime.view.content;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import org.eclipse.swt.layout.GridLayout;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* State for {@link LayoutDescriptor}
*/
public class GridLayoutDescriptorState extends LayoutDescriptorState {
/** change support for this bean */
private PropertyChangeSupport changeSupport;
/** number of columns in the layout */
private int numColumns;
/** indicates if the columns should have the same width */
private boolean sameWidth;
/**
* Creates a new LayoutDescriptorState.
*
* @param layoutDescriptor
* managed descriptor
* @param readOnly
* the read only mode of the state
*/
public GridLayoutDescriptorState(GridLayoutDescriptor layoutDescriptor, boolean readOnly) {
super(layoutDescriptor, readOnly);
sameWidth = layoutDescriptor.isSameWidth();
numColumns = layoutDescriptor.getNumColumns();
// register change support
changeSupport = new PropertyChangeSupport(this);
}
/**
* {@inheritDoc}
*/
public GridLayoutDescriptor getDescriptor() {
return (GridLayoutDescriptor)super.getDescriptor();
}
/**
* {@inheritDoc}
*/
public String getEditionDialogId() {
return "GridLayoutDescriptorStateDialog";
}
/**
* Adds a property change listener to this class
*
* @param listener
* the listener to add
*/
public synchronized void addPropertyChangeListener(PropertyChangeListener listener) {
changeSupport.addPropertyChangeListener(listener);
}
/**
* Removes a property change listener from this class
*
* @param listener
* the listener to remove
*/
public synchronized void removePropertyChangeListener(PropertyChangeListener listener) {
changeSupport.removePropertyChangeListener(listener);
}
/**
* Sets the number of columns
*
* @param numColumns
* the number of columns to set
*/
public void setNumColumns(int numColumns) {
changeSupport.firePropertyChange("numColumns", this.numColumns, this.numColumns = numColumns);
}
/**
* Returns the number of columns
*
* @return the number of columns
*/
public int getNumColumns() {
return numColumns;
}
/**
* Sets if the columns should have the same width
*
* @param sameWidth
* <code>true</code> if columns should have the same width
*/
public void setSameWidth(boolean sameWidth) {
changeSupport.firePropertyChange("sameWidth", this.sameWidth, this.sameWidth = sameWidth);
}
/**
* Returns if the columns should have the same width
*
* @return <code>true</code> if columns should have the same width
*/
public boolean getSameWidth() {
return sameWidth;
}
/**
* {@inheritDoc}
*/
public Node generateNode(Document document) {
Element node = document.createElement("layout");
node.setAttribute("kind", LayoutParser.GRID_KIND);
node.setAttribute("numColumns", "" + getNumColumns());
node.setAttribute("sameWidth", "" + getSameWidth());
return node;
}
/**
* {@inheritDoc}
*/
@Override
public String getText() {
StringBuffer buffer = new StringBuffer();
buffer.append("GridLayout (");
buffer.append(getNumColumns());
buffer.append(", ");
buffer.append(getSameWidth());
buffer.append(")");
return buffer.toString();
}
/**
* {@inheritDoc}
*/
public GridLayout createLayout() {
return new GridLayout(numColumns, sameWidth);
}
}
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