manageritempropertysource.java

基于Eclipse RCP开发的管理工具

 /*  
  * Copyright 2006 Marcel Schoffelmeer 
  * 
  * Licensed 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 com.s10r.manager.view;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.eclipse.ui.views.properties.IPropertySource;
import org.eclipse.ui.views.properties.PropertyDescriptor;
import org.eclipse.ui.views.properties.TextPropertyDescriptor;

import com.s10r.manager.model.ManagerItem;

public class ManagerItemPropertySource implements IPropertySource
{
	private ManagerItem item;

	protected static final String PROPERTY_LAST_UPDATED = "lastUpdated";

	protected static final String PROPERTY_NAME = "name";

	protected static final String PROPERTY_CREATED = "created";

	protected static final String PROPERTY_DESCRIPTION = "description";

	
	private Object PropertiesTable[][] = null;

	public ManagerItemPropertySource(ManagerItem item)
	{
		this.item = item;

		PropertiesTable = new Object[][] {
				{ PROPERTY_NAME,
						new TextPropertyDescriptor(PROPERTY_NAME, "name") },
				// TODO: url property, for some reason remain read-only in
				// properties view...
				{
						PROPERTY_DESCRIPTION,
						new TextPropertyDescriptor(PROPERTY_DESCRIPTION,
								"description") },
				{
						PROPERTY_LAST_UPDATED,
						new PropertyDescriptor(PROPERTY_LAST_UPDATED,
								"last updated") },
				{ PROPERTY_CREATED,
						new PropertyDescriptor(PROPERTY_CREATED, "created") }, };

	}

	public Object getEditableValue()
	{
		return this;
	}

	public IPropertyDescriptor[] getPropertyDescriptors()
	{
		List<IPropertyDescriptor> propertyDescriptors = new ArrayList<
     	IPropertyDescriptor>();
		
		fillPropertyDescriptors(propertyDescriptors);

		// doesn't fly
		// return (IPropertyDescriptor[])propertyDescriptors.toArray();
		return propertyDescriptors.toArray(new IPropertyDescriptor[propertyDescriptors.size()]);
	}

	public Object getPropertyValue(Object name)
	{
		Object ret = "";
		
		if (name.equals(PROPERTY_NAME))
		{
			ret = item.getName();
		}
		else if (name.equals(PROPERTY_CREATED))
		{
			ret = item.getCreated();
		}
		else if (name.equals(PROPERTY_LAST_UPDATED))
		{
			ret = item.getLastUpdated();
		}
		else if (name.equals(PROPERTY_DESCRIPTION))
		{
			ret = item.getDescription();
		}
		else
		{
			// use default
		}

		// property editors don't like nulls: they make the
		// field readonly
		return ret == null ? "" : ret;

	}

	public boolean isPropertySet(Object arg0)
	{
		// TODO Auto-generated method stub
		return false;
	}

	public void resetPropertyValue(Object arg0)
	{
		// TODO Auto-generated method stub

	}

	public void setPropertyValue(Object name, Object value)
	{
		if (name.equals(PROPERTY_NAME))
		{
			item.setName((String) value);
			item.setLastUpdated();
		}
		else if (name.equals(PROPERTY_DESCRIPTION))
		{
			item.setDescription((String) value);
			item.setLastUpdated();
		}
		else
		{
			System.err.println("PasswordEntryPropertySource.setPropertyValue:"
					+ " invalid property (" + name + ")");
		}
	}

	public void fillPropertyDescriptors(
			List<IPropertyDescriptor> propertyDescriptors)
	{
		for (int i = 0; i < PropertiesTable.length; i++)
		{
			// Add each property supported.

			PropertyDescriptor descriptor;

			descriptor = (PropertyDescriptor) PropertiesTable[i][1];
			
			propertyDescriptors.add(descriptor);
			
			descriptor.setCategory("Basic");
		}		
	}

	protected ManagerItem getItem()
	{
		return item;
	}

}