JBuilderCurrentSummary.java

/*
 *  Author:  Chris Seguin
 *
 *  This software has been developed under the copyleft
 *  rules of the GNU General Public License.  Please
 *  consult the GNU General Public License for more
 *  details about use and distribution of this software.
 */
package org.acm.seguin.ide.jbuilder.refactor;

import com.borland.jbuilder.node.JavaFileNode;
import com.borland.primetime.editor.EditorPane;
import com.borland.primetime.ide.Browser;
import com.borland.primetime.node.Node;
import com.borland.primetime.vfs.Buffer;
import com.borland.primetime.viewer.AbstractTextNodeViewer;
import org.acm.seguin.ide.common.action.CurrentSummary;
import org.acm.seguin.ide.common.MultipleDirClassDiagramReloader;
import org.acm.seguin.ide.jbuilder.UMLNodeViewerFactory;

/**
 *  The object that determines the current summary for the JBuilder IDE.
 *
 *@author    Chris Seguin
 */
public class JBuilderCurrentSummary extends CurrentSummary {
	private Node lastActive;
	private EditorPane editor;


	/**
	 *  Constructor for the JBuilderCurrentSummary object
	 */
	public JBuilderCurrentSummary()
	{
		super();
		editor = null;
	}


	/**
	 *  Gets the ActiveNode attribute of the CurrentSummary object
	 *
	 *@return    The ActiveNode value
	 */
	protected Node getActiveNode()
	{
		Browser browser = Browser.getActiveBrowser();
		return browser.getActiveNode();
	}


	/**
	 *  Register the current summary listener with the current document
	 */
	protected void registerWithCurrentDocument()
	{
		Browser browser = Browser.getActiveBrowser();
		Node temp = getActiveNode();

		if (temp != lastActive) {
			lastActive = temp;
			upToDate = false;

			if (editor != null) {
				editor.getDocument().removeDocumentListener(this);
			}

			if ((lastActive == null) || !(lastActive instanceof JavaFileNode)) {
				return;
			}

			AbstractTextNodeViewer sourceViewer =
					(AbstractTextNodeViewer) browser.getViewerOfType(lastActive, AbstractTextNodeViewer.class);
			editor = sourceViewer.getEditor();
			editor.getDocument().addDocumentListener(this);
		}
	}


	/**
	 *  Gets the reloader
	 *
	 *@return    The MetadataReloader value
	 */
	protected MultipleDirClassDiagramReloader getMetadataReloader()
	{
		return UMLNodeViewerFactory.getFactory().getReloader();
	}
}