com.ebmwebsourcing.petals.common.internal.provisional.projectscnf.PetalsProjectLabelProvider.java Source code

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Here is the source code for com.ebmwebsourcing.petals.common.internal.provisional.projectscnf.PetalsProjectLabelProvider.java

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/******************************************************************************
 * Copyright (c) 2010-2013, Linagora
 *
 * 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:
 *       Linagora - initial API and implementation
 *******************************************************************************/

package com.ebmwebsourcing.petals.common.internal.provisional.projectscnf;

import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.jdt.core.IPackageFragment;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.StyledString;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.model.IWorkbenchAdapter;

import com.ebmwebsourcing.petals.common.croquis.internal.projectscnf.PetalsCroquisLabelProvider;
import com.ebmwebsourcing.petals.common.internal.PetalsCommonPlugin;
import com.ebmwebsourcing.petals.common.internal.projectscnf.PetalsProjectManager;
import com.ebmwebsourcing.petals.common.internal.provisional.utils.ImageRegistry;
import com.ebmwebsourcing.petals.common.internal.provisional.utils.PlatformUtils;

/**
 * A styled label provider for the Petals project explorer.
 * @author Vincent Zurczak - EBM WebSourcing
 */
public class PetalsProjectLabelProvider extends LabelProvider implements IStyledLabelProvider {

    protected final ImageRegistry imageRegistry;

    /**
     * Constructor.
     */
    public PetalsProjectLabelProvider() {
        this.imageRegistry = new ImageRegistry();
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.viewers.BaseLabelProvider
     * #dispose()
     */
    @Override
    public void dispose() {
        this.imageRegistry.dispose();
        super.dispose();
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.viewers.DelegatingStyledCellLabelProvider.IStyledLabelProvider
     * #getStyledText(java.lang.Object)
     */
    @Override
    public StyledString getStyledText(Object element) {
        String label = getText(element);
        return label != null ? new StyledString(label) : null;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider
     * #getText(java.lang.Object)
     */
    @Override
    public String getText(Object element) {

        if (element instanceof PetalsProjectCategory)
            return ((PetalsProjectCategory) element).getLabel();

        // Hack for croquis
        if (PetalsCroquisLabelProvider.getCroquisExtension(element) != null)
            return null;
        // End of hack

        if (element instanceof IResource)
            return ((IResource) element).getName();

        if (element instanceof IStorage)
            return ((IStorage) element).getName();

        if (element instanceof IPackageFragment) {
            String result = ((IPackageFragment) element).isDefaultPackage() ? "default"
                    : ((IPackageFragment) element).getElementName();
            if (PetalsProjectManager.isJavaLayoutFlat())
                return result;

            PetalsCnfPackageFragment ppf = PetalsProjectManager.INSTANCE.dirtyViewerMap.get(element);
            if (ppf == null)
                return "oops";

            Object parent = ppf.getParent();
            if (parent instanceof PetalsCnfPackageFragment
                    && ((PetalsCnfPackageFragment) parent).getFragment() != null) {
                String parentName = ((PetalsCnfPackageFragment) parent).getFragment().getElementName();
                result = result.substring(parentName.length() + 1);
            }

            return result;
        }

        String result = "";
        IWorkbenchAdapter adapter = (IWorkbenchAdapter) PlatformUtils.getAdapter(element, IWorkbenchAdapter.class);
        if (adapter != null)
            result = adapter.getLabel(element);

        return result;
    }

    /*
     * (non-Javadoc)
     * @see org.eclipse.jface.viewers.LabelProvider
     * #getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {

        // Find the image descriptor
        ImageDescriptor descriptor = null;
        IWorkbenchAdapter adapter = (IWorkbenchAdapter) PlatformUtils.getAdapter(element, IWorkbenchAdapter.class);
        if (adapter != null)
            descriptor = adapter.getImageDescriptor(element);
        else if (element instanceof PetalsProjectCategory)
            descriptor = ((PetalsProjectCategory) element).getImageDescriptor();

        // Get the image
        Image img = null;
        if (descriptor != null) {

            IResource res = (IResource) PlatformUtils.getAdapter(element, IResource.class);
            if (res != null) {
                if (res.isAccessible()) {
                    try {
                        int severity = res.findMaxProblemSeverity(null, false, IResource.DEPTH_INFINITE);
                        if (severity == IMarker.SEVERITY_ERROR)
                            img = this.imageRegistry.getErrorImage(descriptor);
                        else if (severity == IMarker.SEVERITY_WARNING)
                            img = this.imageRegistry.getWarningImage(descriptor);
                        else
                            img = this.imageRegistry.getBaseImage(descriptor);

                    } catch (CoreException e) {
                        PetalsCommonPlugin.log(e, IStatus.WARNING);
                    }
                }

                // Not accessible
                else {
                    img = this.imageRegistry.getBaseImage(descriptor);
                }
            } else {
                img = this.imageRegistry.getBaseImage(descriptor);
            }
        }

        return img;
    }
}