| /******************************************************************************* |
| * 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.ant.internal.ui.preferences; |
| |
| |
| 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(); |
| } |
| } |