entryeditorcontributor.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.util.HashMap;
import java.util.Map;

import org.eclipse.jface.action.IStatusLineManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.StatusLineManager;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.part.EditorActionBarContributor;

import com.s10r.manager.actions.SearchFieldAction;

/**
 * Example: org.eclipse.ui.texteditor.BasicTextEditorActionContributor
 * 
 * @author mms
 * 
 */
public class EntryEditorContributor extends EditorActionBarContributor
{
	private Map<String, StatusLineContribution> statusFields = null;

	private IEditorPart activeEditorPart;

	private SearchFieldAction searchFieldAction;

	private static final String INPUT_MODE = "inputmode";

	private static final String INPUT_POSITION = "inputposition";

	public EntryEditorContributor()
	{
		statusFields = new HashMap<String, StatusLineContribution>();

		statusFields
				.put(INPUT_MODE, new StatusLineContribution(INPUT_MODE, 16));
		statusFields.put(INPUT_POSITION, new StatusLineContribution(
				INPUT_POSITION, 16));

	}

	/**
	 * Called when the editor is first opened (such as creation a new file)
	 * 
	 * @param statusLineManager
	 */
	public void contributeToStatusLine(IStatusLineManager statusLineManager)
	{
		super.contributeToStatusLine(statusLineManager);

		for (String category : statusFields.keySet())
		{
			statusLineManager.appendToGroup(StatusLineManager.END_GROUP,
					statusFields.get(category));
		}
	}

	/**
	 * Called when the editor is selected by the user. Provides the status
	 * fields to the editor for use.
	 * 
	 * @param targetEditor
	 */
	public void setActiveEditor(IEditorPart targetEditor)
	{
		super.setActiveEditor(targetEditor);

		if (!editorChanged(targetEditor))
		{
			return;
		}

		searchFieldAction.setActiveEditorPart(targetEditor);

		if (activeEditorPart instanceof EntryEditor)
		{
			EntryEditor extension = (EntryEditor) activeEditorPart;
			for (String category : statusFields.keySet())
			{
				extension.setStatusField(category, null);
			}
		}

		activeEditorPart = targetEditor;

		if (activeEditorPart instanceof EntryEditor)
		{
			EntryEditor extension = (EntryEditor) activeEditorPart;
			for (String category : statusFields.keySet())
			{
				extension.setStatusField(category, statusFields.get(category));
			}
		}
	}

	private boolean editorChanged(IEditorPart targetEditor)
	{
		return activeEditorPart != targetEditor;
	}

	@Override
	public void contributeToToolBar(IToolBarManager toolBarManager)
	{
		super.contributeToToolBar(toolBarManager);

		searchFieldAction = new SearchFieldAction("searchfieldId");
		searchFieldAction.setActiveEditorPart(activeEditorPart);

		toolBarManager.add(searchFieldAction);

	}

}