gefexampleplugin.java

来自「eclipse开发笔记」· Java 代码 · 共 76 行

package com.example;

import org.eclipse.core.runtime.IPluginDescriptor;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;


/**
 * The main plugin class to be used in the desktop.
 */
public class GefExamplePlugin extends AbstractUIPlugin {
	public static final String PLUGIN_ID = "com.example.GefExamplePlugin"; //$NON-NLS-1$

	//The shared instance.
	private static GefExamplePlugin plugin;

    /**
	 * The constructor.
	 */
	public GefExamplePlugin() {
		super();
		plugin = this;
	}

	/**
	 * This method is called upon plug-in activation
	 */
	public void start(BundleContext context) throws Exception {
		
		super.start(context);
	}

	/**
	 * This method is called when the plug-in is stopped
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		super.stop(context);
	}

	/**
	 * Returns the shared instance.
	 */
	public static GefExamplePlugin 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 Shell getActiveWorkbenchShell() {
		IWorkbenchWindow window = getActiveWorkbenchWindow();
		if (window != null) {
			return window.getShell();
		}
		return null;
	}

	public static IWorkbenchWindow getActiveWorkbenchWindow() {
		return getDefault().getWorkbench().getActiveWorkbenchWindow();
	}

}