/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
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*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
*/
package org.opends.quicksetup.event;
import java.awt.Component;
import java.awt.Window;
import java.awt.event.ComponentEvent;
import java.awt.event.ComponentListener;
/**
* This class is used to not allowing the user to reduce the size of a component
* below a certain size. When we want to set a minimum size on an object we
* just create the object and then we add it as ComponentListener of the object.
*
* This is used basically by the QuickSetupDialog dialog.
*
*/
public class MinimumSizeComponentListener implements ComponentListener
{
private Component comp;
private int minWidth;
private int minHeight;
/**
* Constructor for the MinimumSizeComponentListener.
*
* @param comp the component for which we want to set a minimum size
* @param minWidth the minimum width for the component
* @param minHeight the minimum height for the component
*/
public MinimumSizeComponentListener(Component comp, int minWidth,
int minHeight)
{
this.comp = comp;
this.minWidth = minWidth + 2;
// It seems that we must add two points to the minWidth (the border of
// the frame)
if (comp instanceof Window)
{
this.minWidth += 2;
}
this.minHeight = minHeight;
}
/**
* ComponentListener implementation.
*
* When the method is called check the size and if it is below the minimum
* size specified in the constructor, resize it to the minimum size.
*
* @param ev the component event.
*/
public void componentResized(ComponentEvent ev)
{
int width = comp.getWidth();
int height = comp.getHeight();
boolean resize = false;
if (width < minWidth)
{
resize = true;
width = minWidth;
}
if (height < minHeight)
{
resize = true;
height = minHeight;
}
if (resize)
{
comp.setSize(width, height);
}
}
/**
* ComponentListener implementation.
*
* Empty implementation.
* @param ev the component event.
*/
public void componentMoved(ComponentEvent ev)
{
}
/**
* ComponentListener implementation.
*
* Empty implementation.
* @param ev the component event.
*/
public void componentShown(ComponentEvent ev)
{
}
/**
* ComponentListener implementation.
*
* Empty implementation.
* @param ev the component event.
*/
public void componentHidden(ComponentEvent ev)
{
}
}