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The source code/* * 11/19/2001 - 00:47:08 * * BoxComment.java * Copyright (C) 1999 Romain Guy * Portions copyright (C) 1998-2000 Slava Pestov * * This free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ package org.jext.actions; import javax.swing.text.Element; import org.jext.*; import javax.swing.text.Document; import java.awt.event.ActionEvent; import javax.swing.text.BadLocationException; public class BoxComment extends MenuAction implements EditAction { public BoxComment() { super("box_comment"); } public void actionPerformed(ActionEvent evt) { JextTextArea textArea = getTextArea(evt); Document doc = textArea.getDocument(); String commentStart = textArea.getProperty("commentStart"); String commentEnd = textArea.getProperty("commentEnd"); String boxComment = textArea.getProperty("boxComment"); if (commentStart == null || commentEnd == null || boxComment == null) return; commentStart = commentStart + ' '; commentEnd = ' ' + commentEnd; boxComment = boxComment + ' '; int selectionStart = textArea.getSelectionStart(); int selectionEnd = textArea.getSelectionEnd(); Element map = doc.getDefaultRootElement(); int startLine = map.getElementIndex(selectionStart); int endLine = map.getElementIndex(selectionEnd); textArea.beginCompoundEdit(); try { Element lineElement = map.getElement(startLine); int start = lineElement.getStartOffset(); int indent = Utilities.getLeadingWhiteSpace(doc.getText(start, lineElement.getEndOffset() - start)); doc.insertString(Math.max(start + indent, selectionStart), commentStart, null); for (int i = startLine + 1; i < endLine; i++) { lineElement = map.getElement(i); start = lineElement.getStartOffset(); indent = Utilities.getLeadingWhiteSpace(doc.getText(start, lineElement.getEndOffset() - start)); doc.insertString(start + indent, boxComment, null); } lineElement = map.getElement(endLine); start = lineElement.getStartOffset(); indent = Utilities.getLeadingWhiteSpace(doc.getText(start, lineElement.getEndOffset() - start)); if (startLine < endLine) doc.insertString(start + indent, boxComment, null); doc.insertString(Math.max(start + indent, textArea.getSelectionEnd()), commentEnd, null); textArea.setCaretPosition(textArea.getCaretPosition()); } catch(BadLocationException ble) { } textArea.endCompoundEdit(); } } // End of BoxComment.java |
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