com.bdaum.zoom.net.communities.AccountLabelProvider.java Source code

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Here is the source code for com.bdaum.zoom.net.communities.AccountLabelProvider.java

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/*
 * This file is part of the ZoRa project: http://www.photozora.org.
 *
 * ZoRa is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * ZoRa is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with ZoRa; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * (c) 2009 Berthold Daum  
 */
package com.bdaum.zoom.net.communities;

import java.util.HashMap;
import java.util.Map;

import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;

import com.bdaum.zoom.css.ZColumnLabelProvider;

final class AccountLabelProvider extends ZColumnLabelProvider {

    protected Map<String, Image> imageMap = new HashMap<String, Image>();
    private final Viewer viewer;

    public AccountLabelProvider(Viewer viewer) {
        this.viewer = viewer;
    }

    @Override
    public String getText(Object element) {
        if (element instanceof CommunityAccount)
            return ((CommunityAccount) element).getName();
        if (element instanceof IConfigurationElement)
            return ((IConfigurationElement) element).getAttribute("name"); //$NON-NLS-1$
        return element.toString();
    }

    @Override
    public Image getImage(Object element) {
        if (element instanceof IConfigurationElement) {
            String iconpath = ((IConfigurationElement) element).getAttribute("icon"); //$NON-NLS-1$
            if (iconpath != null) {
                Image image = imageMap.get(iconpath);
                if (image == null) {
                    String namespaceIdentifier = ((IConfigurationElement) element).getNamespaceIdentifier();
                    ImageDescriptor imageDescriptor = AbstractUIPlugin
                            .imageDescriptorFromPlugin(namespaceIdentifier, iconpath);
                    image = imageDescriptor.createImage(viewer.getControl().getDisplay());
                    if (image != null)
                        imageMap.put(iconpath, image);
                }
                return image;
            }
        }
        return null;
    }

    @Override
    public void dispose() {
        for (Image image : imageMap.values()) {
            image.dispose();
        }
        super.dispose();
    }
}