org.eclipse.ui.views.markers.internal.FieldSeverityAndMessage.java Source code

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Here is the source code for org.eclipse.ui.views.markers.internal.FieldSeverityAndMessage.java

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/*******************************************************************************
 * Copyright (c) 2000, 2007 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.ui.views.markers.internal;

import org.eclipse.jface.resource.DeviceResourceException;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.internal.ide.IDEInternalWorkbenchImages;

/**
 * The FieldSeverityAndMessage is the field that
 * displays severities and messages.
 * 
 */
public class FieldSeverityAndMessage extends FieldMessage {

    private String description;

    /**
     * Create a new instance of the receiver.
     */
    public FieldSeverityAndMessage() {
        description = MarkerMessages.problemSeverity_description;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.views.markers.internal.IField#getDescription()
     */
    public String getDescription() {
        return description;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.views.markers.internal.IField#getImage(java.lang.Object)
     */
    public Image getImage(Object obj) {
        if (obj == null || !(obj instanceof MarkerNode)) {
            return null;
        }

        MarkerNode node = (MarkerNode) obj;
        if (node.isConcrete()) {
            if (node instanceof ProblemMarker) {
                return Util.getImage(((ProblemMarker) obj).getSeverity());
            }
            return null;
        }

        try {
            return JFaceResources.getResources().createImageWithDefault(IDEInternalWorkbenchImages
                    .getImageDescriptor(IDEInternalWorkbenchImages.IMG_ETOOL_PROBLEM_CATEGORY));
        } catch (DeviceResourceException e) {
            return null;
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.views.markers.internal.IField#compare(java.lang.Object,
     *      java.lang.Object)
     */
    public int compare(Object obj1, Object obj2) {
        if (obj1 == null || obj2 == null || !(obj1 instanceof ProblemMarker) || !(obj2 instanceof ProblemMarker)) {
            return 0;
        }

        ProblemMarker marker1 = (ProblemMarker) obj1;
        ProblemMarker marker2 = (ProblemMarker) obj2;

        int severity1 = marker1.getSeverity();
        int severity2 = marker2.getSeverity();
        if (severity1 == severity2)
            return marker1.getDescriptionKey().compareTo(marker2.getDescriptionKey());
        return severity2 - severity1;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.views.markers.internal.IField#getColumnHeaderImage()
     */
    public Image getColumnHeaderImage() {
        return getImage(FieldDone.DESCRIPTION_IMAGE_PATH);
    }

}