com.aptana.ide.samples.ui.SamplesViewLabelProvider.java Source code

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Here is the source code for com.aptana.ide.samples.ui.SamplesViewLabelProvider.java

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/**
 * This file Copyright (c) 2005-2008 Aptana, Inc. This program is
 * dual-licensed under both the Aptana Public License and the GNU General
 * Public license. You may elect to use one or the other of these licenses.
 * 
 * This program is distributed in the hope that it will be useful, but
 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 * NONINFRINGEMENT. Redistribution, except as permitted by whichever of
 * the GPL or APL you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or modify this
 * program under the terms of the GNU General Public License,
 * Version 3, as published by the Free Software Foundation.  You should
 * have received a copy of the GNU General Public License, Version 3 along
 * with this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Aptana provides a special exception to allow redistribution of this file
 * with certain other free and open source software ("FOSS") code and certain additional terms
 * pursuant to Section 7 of the GPL. You may view the exception and these
 * terms on the web at http://www.aptana.com/legal/gpl/.
 * 
 * 2. For the Aptana Public License (APL), this program and the
 * accompanying materials are made available under the terms of the APL
 * v1.0 which accompanies this distribution, and is available at
 * http://www.aptana.com/legal/apl/.
 * 
 * You may view the GPL, Aptana's exception and additional terms, and the
 * APL in the file titled license.html at the root of the corresponding
 * plugin containing this source file.
 * 
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.samples.ui;

import java.io.File;
import java.util.HashMap;
import java.util.Iterator;

import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorDescriptor;
import org.eclipse.ui.IEditorRegistry;

import com.aptana.ide.core.IdeLog;
import com.aptana.ide.core.StringUtils;
import com.aptana.ide.core.ui.EclipseUIUtils;
import com.aptana.ide.core.ui.ImageUtils;
import com.aptana.ide.editors.unified.UnifiedColorManager;
import com.aptana.ide.samples.model.SamplesEntry;
import com.aptana.ide.samples.model.SamplesInfo;

/**
 * @author Kevin Lindsey
 */
public class SamplesViewLabelProvider extends LabelProvider {

    private IEditorRegistry registry = EclipseUIUtils.getWorkbenchEditorRegistry();

    private HashMap<Object, Image> images = new HashMap<Object, Image>();
    private Image folder = null;

    /**
     * @see org.eclipse.jface.viewers.LabelProvider#dispose()
     */
    public void dispose() {
        super.dispose();
        Iterator<Image> iter = images.values().iterator();
        while (iter.hasNext()) {
            iter.next().dispose();
        }
    }

    /**
     * getImage
     * 
     * @param element
     * @return Image
     */
    public Image getImage(Object element) {
        if (element == SamplesViewContentProvider.LOADING) {
            return SamplesUIPlugin.getImage("icons/hourglass.png"); //$NON-NLS-1$
        }
        Image result = null;

        if (element instanceof SamplesInfo) {
            String iconFile = ((SamplesInfo) element).getIconFile();
            if (iconFile != null) {
                File file = new File(iconFile);
                if (file.exists()) {
                    result = new Image(Display.getDefault(), file.getAbsolutePath());
                    images.put(file.getAbsoluteFile(), result);
                } else {
                    result = SamplesUIPlugin.getImage("icons/folder.gif"); //$NON-NLS-1$
                    IdeLog.logInfo(SamplesUIPlugin.getDefault(), StringUtils
                            .format(Messages.SamplesViewLabelProvider_INF_ImageNotFound, file.getAbsolutePath()));
                }
            }
        } else if (element instanceof SamplesEntry) {
            SamplesEntry entry = (SamplesEntry) element;
            File file = entry.getFile();
            if (file != null) {
                IEditorDescriptor desc = registry.getDefaultEditor(file.getName());
                if (desc == null || desc.getImageDescriptor() == null) {
                    if (file.isDirectory()) {
                        if (folder == null) {
                            folder = SamplesUIPlugin.getImage("icons/folder.gif"); //$NON-NLS-1$
                        }
                        result = folder;
                    } else {
                        result = ImageUtils.getIcon(file,
                                UnifiedColorManager.getInstance().getColor(new RGB(255, 255, 255)));

                    }
                } else {
                    if (images.containsKey(desc)) {
                        result = (Image) images.get(desc);
                    } else {
                        result = desc.getImageDescriptor().createImage();
                        images.put(desc, result);
                    }
                }
            }
        }

        return result;
    }

    /**
     * getText
     * 
     * @param element
     * @return String
     */
    public String getText(Object element) {
        if (element == SamplesViewContentProvider.LOADING) {
            return Messages.SamplesViewLabelProvider_TXT_Loading;
        }
        String result = ""; //$NON-NLS-1$

        if (element instanceof SamplesEntry) {
            File file = ((SamplesEntry) element).getFile();
            if (file != null) {
                result = file.getName();
            }
        } else if (element instanceof SamplesInfo) {
            SamplesInfo snippet = (SamplesInfo) element;

            result = snippet.getName();
        } else {
            result = element.toString();
        }

        return result;
    }
}