FormatAction.java

/*
GNU Lesser General Public License

FormatAction
Copyright (C) 2000 Howard Kistler

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

package com.hexidec.ekit.action;

import java.awt.event.ActionEvent;

import javax.swing.JTextPane;
import javax.swing.text.SimpleAttributeSet;
import javax.swing.text.StyledEditorKit;
import javax.swing.text.html.HTML;

import com.hexidec.ekit.EkitCore;
import com.hexidec.ekit.component.SimpleInfoDialog;
import com.hexidec.util.Translatrix;

/** Class for implementing HTML format actions
 * (NOTE : Does not toggle. User must use the "Clear Format" option to remove formatting correctly.)
 */
public class FormatAction extends StyledEditorKit.StyledTextAction
{
	/** <code>serialVersionUID</code> */
	private static final long	serialVersionUID	= 7672063208238845511L;

	/** @deprecated inner variable should not be accessed directly */
	// TODO reduce visibility to private in next release
	protected EkitCore parentEkit;
	HTML.Tag htmlTag;

	public FormatAction(EkitCore ekit, String actionName, HTML.Tag inTag)
	{
		super(actionName);
		parentEkit = ekit;
		htmlTag    = inTag;
	}

	public void actionPerformed(ActionEvent ae)
	{
		JTextPane parentTextPane = parentEkit.getTextPane();
		String selText = parentTextPane.getSelectedText();
		int textLength = -1;
		if(selText != null)
		{
			textLength = selText.length();
		}
		if(selText == null || textLength < 1)
		{
			SimpleInfoDialog.show(parentEkit.getParentWindow(), "", true, Translatrix.getTranslationString("ErrorNoTextSelected"), SimpleInfoDialog.ERROR);
		}
		else
		{
			SimpleAttributeSet sasText = new SimpleAttributeSet(parentTextPane.getCharacterAttributes());
			sasText.addAttribute(htmlTag, new SimpleAttributeSet());
			int caretOffset = parentTextPane.getSelectionStart();
			parentTextPane.select(caretOffset, caretOffset + textLength);
			parentTextPane.setCharacterAttributes(sasText, false);
			parentEkit.refreshOnUpdate();
			parentTextPane.select(caretOffset, caretOffset + textLength);
		}
	}
}