CIMToolPlugin.java

/*
 * This software is Copyright 2005,2006,2007,2008 Langdale Consultants.
 * Langdale Consultants can be contacted at: http://www.langdale.com.au
 */
package au.com.langdale.cimtoole;


import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;

import au.com.langdale.cimtoole.project.Cache;
import au.com.langdale.cimtoole.project.Settings;
import au.com.langdale.ui.util.GeneralIconCache;
import au.com.langdale.ui.util.IconCache;
import au.com.langdale.ui.util.NodeTraits;



/**
 * The activator class for the CIMTool plugin.
 * It manages the lifetime of the model cache.
 */
public class CIMToolPlugin extends AbstractUIPlugin {

	// The plug-in ID
	public static final String PLUGIN_ID = "au.com.langdale.cimtoole";
	
	// The RDF namespace for settings subjects
	public static final String PROJECT_NS = "http://cimtoole.langdale.com.au/2009/project/";
	
	// The RDF namespace for settings properties
	public static final String SETTING_NS = "http://cimtoole.langdale.com.au/2009/setting#";
	
	// The shared instance
	private static CIMToolPlugin plugin;
	
	// the model cache
	private static Cache cache;
	
	// the settings database
	private static Settings settings;
	
	/**
	 * The constructor
	 */
	public CIMToolPlugin() {
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext)
	 */
	@Override
	public void start(BundleContext context) throws Exception {
		super.start(context);
		IconCache.setIcons( new CIMToolIconCache(context.getBundle(), "/icons/"));
		cache = new Cache();
		settings = new Settings();
		plugin = this;
	}
	
	private static class CIMToolIconCache extends GeneralIconCache {
	    public CIMToolIconCache(Bundle bundleToUse, String prefixPath) {
		super(bundleToUse, prefixPath);
	    }
	    
	    @Override
	    public Image get(Object value, int size) {
		if (value instanceof NodeTraits) {
		    NodeTraits node = (NodeTraits) value;
		    return get(node.getIconClass(), node.getErrorIndicator(), size);
		}
		else
		    return super.get(value, size);
	    }
	}

	/*
	 * (non-Javadoc)
	 * @see org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext)
	 */
	@Override
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 *
	 * @return the shared instance
	 */
	public static CIMToolPlugin getDefault() {
		return plugin;
	}

	/**
	 * Returns an image descriptor for the image file at the given
	 * plug-in relative path
	 *
	 * @param path the path
	 * @return the image descriptor
	 */
	public static ImageDescriptor getImageDescriptor(String path) {
		return imageDescriptorFromPlugin(PLUGIN_ID, path);
	}

	public static Cache getCache() {
		return cache;
	}
	
	public static Settings getSettings() {
		return settings;
	}
}