/*******************************************************************************
* Copyright (c) 2005 IBM Corporation 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.make.internal.ui;
import org.eclipse.jface.resource.JFaceColors;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Composite;
/**
* A message line. It distinguishs between "normal" messages and errors.
* Setting an error message hides a currently displayed message until
* <code>clearErrorMessage</code> is called.
*/
public class MessageLine extends CLabel {
private String fMessage;
private Color fNormalMsgAreaBackground;
private boolean hasErrorMessage;
/**
* Creates a new message line as a child of the given parent.
*/
public MessageLine(Composite parent) {
this(parent, SWT.LEFT);
}
/**
* Creates a new message line as a child of the parent and with the given SWT stylebits.
*/
public MessageLine(Composite parent, int style) {
super(parent, style);
fNormalMsgAreaBackground= getBackground();
}
/**
* Display the given error message. A currently displayed message
* is saved and will be redisplayed when the error message is cleared.
*/
public void setErrorMessage(String message) {
if (message != null && message.length() > 0) {
hasErrorMessage = true;
setText(message);
setImage(MakeUIImages.getImage(MakeUIImages.IMG_OBJS_ERROR));
setBackground(JFaceColors.getErrorBackground(getDisplay()));
return;
}
hasErrorMessage = false;
setText(fMessage);
setImage(null);
setBackground(fNormalMsgAreaBackground);
}
public void setMessage(String message) {
fMessage = message;
setText(message);
}
public boolean hasErrorMessage() {
return hasErrorMessage;
}
}