com.siteview.mde.internal.ui.editor.site.SiteLabelProvider.java Source code

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Here is the source code for com.siteview.mde.internal.ui.editor.site.SiteLabelProvider.java

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/*******************************************************************************
 *  Copyright (c) 2003, 2008 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 com.siteview.mde.internal.ui.editor.site;

import org.eclipse.jface.viewers.LabelProvider;
import com.siteview.mde.internal.core.MDECore;
import com.siteview.mde.internal.core.isite.ISiteCategoryDefinition;
import com.siteview.mde.internal.core.isite.ISiteFeature;
import com.siteview.mde.internal.ui.*;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.forms.editor.IFormPage;

class SiteLabelProvider extends LabelProvider {

    private MDELabelProvider fSharedProvider;

    /**
     * Comment for <code>fLabelProvider</code>
     */
    private Image fSiteFeatureImage;

    private Image fMissingSiteFeatureImage;

    private Image fPageImage;

    private Image fCatDefImage;

    public SiteLabelProvider() {
        fSiteFeatureImage = MDEPluginImages.DESC_FEATURE_OBJ.createImage();
        fMissingSiteFeatureImage = MDEPluginImages.DESC_NOREF_FEATURE_OBJ.createImage();
        fCatDefImage = MDEPluginImages.DESC_CATEGORY_OBJ.createImage();
        fPageImage = MDEPluginImages.DESC_PAGE_OBJ.createImage();
        fSharedProvider = MDEPlugin.getDefault().getLabelProvider();
        fSharedProvider.connect(this);
    }

    public Image getImage(Object element) {
        if (element instanceof ISiteCategoryDefinition)
            return fCatDefImage;
        if (element instanceof SiteFeatureAdapter) {
            if (MDECore.getDefault().getFeatureModelManager().findFeatureModelRelaxed(
                    ((SiteFeatureAdapter) element).feature.getId(),
                    ((SiteFeatureAdapter) element).feature.getVersion()) == null)
                return fMissingSiteFeatureImage;
            return fSiteFeatureImage;
        }
        if (element instanceof IFormPage)
            return fPageImage;
        return fSharedProvider.getImage(element);
    }

    public String getText(Object element) {
        if (element instanceof ISiteCategoryDefinition)
            return ((ISiteCategoryDefinition) element).getName();
        if (element instanceof SiteFeatureAdapter) {
            ISiteFeature feature = ((SiteFeatureAdapter) element).feature;
            return fSharedProvider.getObjectText(feature);
        }
        if (element instanceof IFormPage)
            return ((IFormPage) element).getTitle();
        return fSharedProvider.getText(element);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider#dispose()
     */
    public void dispose() {
        fSharedProvider.disconnect(this);
        // Dispose of images
        if ((fCatDefImage != null) && (fCatDefImage.isDisposed() == false)) {
            fCatDefImage.dispose();
            fCatDefImage = null;
        }
        if ((fSiteFeatureImage != null) && (fSiteFeatureImage.isDisposed() == false)) {
            fSiteFeatureImage.dispose();
            fSiteFeatureImage = null;
        }
        if ((fMissingSiteFeatureImage != null) && (fMissingSiteFeatureImage.isDisposed() == false)) {
            fMissingSiteFeatureImage.dispose();
            fMissingSiteFeatureImage = null;
        }
        if ((fPageImage != null) && (fPageImage.isDisposed() == false)) {
            fPageImage.dispose();
            fPageImage = null;
        }
        super.dispose();
    }
}