NavigatorLabelProvider.java

/*
 * Copyright (c) 2004-2011 Marco Maccaferri 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:
 *     Marco Maccaferri - initial API and implementation
 */

package org.eclipsetrader.ui.internal.navigator;

import org.eclipse.core.internal.runtime.AdapterManager;
import org.eclipse.jface.viewers.IColorProvider;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Image;
import org.eclipsetrader.core.instruments.ISecurity;
import org.eclipsetrader.core.markets.IMarket;
import org.eclipsetrader.core.views.IWatchList;
import org.eclipsetrader.ui.UIConstants;
import org.eclipsetrader.ui.internal.UIActivator;

@SuppressWarnings("restriction")
public class NavigatorLabelProvider extends LabelProvider implements IColorProvider {

    private Image folderIcon;
    private Image blankIcon;
    private Image marketIcon;
    private Image securityIcon;
    private Image watchListIcon;

    public NavigatorLabelProvider() {
        if (UIActivator.getDefault() != null) {
            folderIcon = UIActivator.getDefault().getImageRegistry().get(UIConstants.FOLDER_OBJECT);
            blankIcon = UIActivator.getDefault().getImageRegistry().get(UIConstants.BLANK_OBJECT);
            marketIcon = UIActivator.getDefault().getImageRegistry().get(UIConstants.MARKET_FOLDER);
            securityIcon = UIActivator.getDefault().getImageRegistry().get(UIConstants.REPOSITORY_OBJECT);
            watchListIcon = UIActivator.getDefault().getImageRegistry().get(UIConstants.REPOSITORY_OBJECT);
        }
    }

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

        ILabelProvider labelProvider = (ILabelProvider) AdapterManager.getDefault().getAdapter(viewItem.getReference(), ILabelProvider.class);
        if (labelProvider != null) {
            return labelProvider.getImage(element);
        }

        if (viewItem.getReference() instanceof IMarket) {
            return marketIcon;
        }
        if (viewItem.getReference() instanceof ISecurity) {
            return securityIcon;
        }
        if (viewItem.getReference() instanceof IWatchList) {
            return watchListIcon;
        }

        if (viewItem.getItemCount() != 0) {
            return folderIcon;
        }

        return blankIcon;
    }

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

        ILabelProvider labelProvider = (ILabelProvider) AdapterManager.getDefault().getAdapter(viewItem.getReference(), ILabelProvider.class);
        if (labelProvider != null) {
            return labelProvider.getText(element);
        }

        if (viewItem.getReference() instanceof IMarket) {
            return ((IMarket) element).getName();
        }
        if (viewItem.getReference() instanceof ISecurity) {
            return ((ISecurity) element).getName();
        }
        if (viewItem.getReference() instanceof IWatchList) {
            return ((IWatchList) element).getName();
        }

        return super.getText(element);
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IColorProvider#getBackground(java.lang.Object)
     */
    @Override
    public Color getBackground(Object element) {
        IColorProvider colorProvider = (IColorProvider) AdapterManager.getDefault().getAdapter(((NavigatorViewItem) element).getReference(), IColorProvider.class);
        if (colorProvider != null) {
            return colorProvider.getBackground(element);
        }

        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.IColorProvider#getForeground(java.lang.Object)
     */
    @Override
    public Color getForeground(Object element) {
        IColorProvider colorProvider = (IColorProvider) AdapterManager.getDefault().getAdapter(((NavigatorViewItem) element).getReference(), IColorProvider.class);
        if (colorProvider != null) {
            return colorProvider.getForeground(element);
        }

        return null;
    }
}