/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.directory.studio.valueeditors;
import java.io.IOException;
import java.net.URL;
import java.util.PropertyResourceBundle;
import org.eclipse.core.runtime.FileLocator;
import org.eclipse.core.runtime.Path;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.graphics.Image;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;
/**
* The activator class controls the plug-in life cycle
*/
public class ValueEditorsActivator extends AbstractUIPlugin
{
/** The shared instance */
private static ValueEditorsActivator plugin;
/** The plugin properties */
private PropertyResourceBundle properties;
/**
* The constructor
*/
public ValueEditorsActivator()
{
plugin = this;
}
/**
* {@inheritDoc}
*/
public void start( BundleContext context ) throws Exception
{
super.start( context );
}
/**
* {@inheritDoc}
*/
public void stop( BundleContext context ) throws Exception
{
plugin = null;
super.stop( context );
}
/**
* Returns the shared instance
*
* @return the shared instance
*/
public static ValueEditorsActivator getDefault()
{
return plugin;
}
/**
* Use this method to get SWT images. Use the IMG_ constants from
* ValueEditorConstants for the key.
*
* @param key
* The key (relative path to the image im filesystem)
* @return The image discriptor or null
*/
public ImageDescriptor getImageDescriptor( String key )
{
if ( key != null )
{
URL url = FileLocator.find( getBundle(), new Path( key ), null );
if ( url != null )
return ImageDescriptor.createFromURL( url );
else
return null;
}
else
{
return null;
}
}
/**
* Use this method to get SWT images. Use the IMG_ constants from
* ValueEditorConstants for the key. A ImageRegistry is used to manage the
* the key->Image mapping.
* <p>
* Note: Don't dispose the returned SWT Image. It is disposed
* automatically when the plugin is stopped.
*
* @param key
* The key (relative path to the image im filesystem)
* @return The SWT Image or null
* @see ValueEditorsConstants
*/
public Image getImage( String key )
{
Image image = getImageRegistry().get( key );
if ( image == null )
{
ImageDescriptor id = getImageDescriptor( key );
if ( id != null )
{
image = id.createImage();
getImageRegistry().put( key, image );
}
}
return image;
}
/**
* Gets the plugin properties.
*
* @return
* the plugin properties
*/
public PropertyResourceBundle getPluginProperties()
{
if ( properties == null )
{
try
{
properties = new PropertyResourceBundle( FileLocator.openStream( this.getBundle(), new Path(
"plugin.properties" ), false ) ); //$NON-NLS-1$
}
catch ( IOException e )
{
// We can't use the PLUGIN_ID constant since loading the plugin.properties file has failed,
// So we're using a default plugin id.
getLog().log( new Status( Status.ERROR, "org.apache.directory.studio.valueeditors", Status.OK, //$NON-NLS-1$
Messages.getString( "ValueEditorsActivator.UnableGetPluginProperties" ), e ) ); //$NON-NLS-1$
}
}
return properties;
}
}