entryeditorinput.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;

import java.io.File;

import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.IPersistableElement;

public class EntryEditorInput implements IEditorInput, IPersistableElement
{
	private File file;

	// transient field, required on opening the editor
	// hold on to it here so we can modify it in the properties dialog
	private String password;

	private boolean untitled = false;

	private static int untitledCount = 1;

	private int untitledNr = 1;

	public EntryEditorInput(File file)
	{
		this.file = file;
	}

	/*
	 * Untitled constructor
	 */
	public EntryEditorInput()
	{
		untitled = true;
		untitledNr = untitledCount++;
	}

	public boolean exists()
	{
		return false;
	}

	public ImageDescriptor getImageDescriptor()
	{
		// TODO Auto-generated method stub
		return null;
	}

	public String getName()
	{
		if (isUntitled())
		{
			return "Untitled " + untitledNr;
		}
		else
		{
			return file.getName();
		}
	}

	public String getPath()
	{
		// do save untitled instances
		if (isUntitled())
		{
			return null;
		}
		else
		{
			return file.getPath();
		}
	}

	public IPersistableElement getPersistable()
	{
		if (isUntitled())
		{
			return null;
		}
		else
		{			
		  return this;
		}
	}

	public String getToolTipText()
	{
		if (isUntitled())
		{
			return getName();
		}
		else
		{
		   return file.getPath();
		}
	}

	public Object getAdapter(Class adapter)
	{
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public boolean equals(Object obj)
	{
		if (this.isUntitled())
		{
			return false;
		}
		
		if (this == obj)
		{
			return true;
		}
		else if (obj instanceof EntryEditorInput)
		{
			EntryEditorInput inputObj = (EntryEditorInput)obj;
			// untiled editor inputs are always different
			if (inputObj.isUntitled())
			{
				return false;				
			}			
			else
			{
				return inputObj.getFile().equals(this.getFile());
			}
		}
		else
		{
			return false;
		}

	}

	public File getFile()
	{
		return file;
	}

	public String getFactoryId()
	{
		return EditorInputElementFactory.ID;
	}

	/**
	 * @param memento
	 */
	public void saveState(IMemento memento)
	{
		memento.putString("path", file.getPath());
	}

	public String getPassword()
	{
		return password;
	}

	public void setPassword(String password)
	{
		this.password = password;
	}

	public boolean isUntitled()
	{
		return untitled;
	}

	public void setUntitled(boolean untitled)
	{
		this.untitled = untitled;
	}

	public void setFile(File file)
	{
		this.file = file;
	}
	
	public EntryEditorInput copy()
	{
		EntryEditorInput entry = new EntryEditorInput();
		
		entry.file = file;
		entry.password = password;
		entry.untitled = untitled;

		return entry;
	}

	
}