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/*******************************************************************************
* Copyright (c) 2000, 2003 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.externaltools.internal.ui;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
/**
* A message line displaying a status.
*/
public class MessageLine extends CLabel {
private static final RGB ERROR_BACKGROUND_RGB = new RGB(230, 226, 221);
private Color fNormalMsgAreaBackground;
private Color fErrorMsgAreaBackground;
/**
* 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();
fErrorMsgAreaBackground= null;
}
private Image findImage(IStatus status) {
if (status.isOK()) {
return null;
} else if (status.matches(IStatus.ERROR)) {
return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJS_ERROR_TSK);
} else if (status.matches(IStatus.WARNING)) {
return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJS_WARN_TSK);
} else if (status.matches(IStatus.INFO)) {
return PlatformUI.getWorkbench().getSharedImages().getImage(ISharedImages.IMG_OBJS_INFO_TSK);
}
return null;
}
/**
* Sets the message and image to the given status.
* <code>null</code> is a valid argument and will set the empty text and no image
*/
public void setErrorStatus(IStatus status) {
if (status != null) {
String message= status.getMessage();
if (message != null && message.length() > 0) {
setText(message);
setImage(findImage(status));
if (fErrorMsgAreaBackground == null) {
fErrorMsgAreaBackground= new Color(getDisplay(), ERROR_BACKGROUND_RGB);
}
setBackground(fErrorMsgAreaBackground);
return;
}
}
setText(""); //$NON-NLS-1$
setImage(null);
setBackground(fNormalMsgAreaBackground);
}
/*
* @see Widget#dispose()
*/
public void dispose() {
if (fErrorMsgAreaBackground != null) {
fErrorMsgAreaBackground.dispose();
fErrorMsgAreaBackground= null;
}
super.dispose();
}
}
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