File indexing completed on 2024-05-12 16:34:57

 /* This file is part of the KDE project
  * Copyright (C) 2007 Thomas Zander <zander@kde.org>
  * Copyright (C) 2008 Pierre Stirnweiss \pierre.stirnweiss_calligra@gadz.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 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
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "ChangeTracker.h"
 #include "TextTool.h"
 #include "TextShapeDebug.h"
 
 ChangeTracker::ChangeTracker(TextTool *parent)
         : QObject(parent),
         m_document(0),
         m_tool(parent),
         m_enableSignals(true),
         m_reverseUndo(false)
 {
 }
 
 void ChangeTracker::setDocument(QTextDocument * document)
 {
     m_reverseUndo = false;
     if (m_document)
         disconnect(m_document, SIGNAL(contentsChange(int,int,int)), this, SLOT(contentsChange(int,int,int)));
     m_document = document;
     if (m_document)
         connect(m_document, SIGNAL(contentsChange(int,int,int)), this, SLOT(contentsChange(int,int,int)));
 }
 
 int ChangeTracker::getChangeId(QString title, int existingChangeId)
 {
     Q_UNUSED(title);
     Q_UNUSED(existingChangeId);
     debugTextShape << "ChangeTracker::changeId :" << m_changeId;
     return m_changeId++;
 }
 
 void ChangeTracker::contentsChange(int from, int charsRemoves, int charsAdded)
 {
     Q_UNUSED(from);
     Q_UNUSED(charsRemoves);
     Q_UNUSED(charsAdded);
 /*
     if (! m_enableSignals) return;
     m_enableSignals = false;
     debugTextShape << "ChangeTracker::contentsChange" << from << "," << charsRemoves << "," << charsAdded;
 
     if (charsRemoves == 0 && charsAdded == 0) {
         // I think we can quietly ignore this.
     } else if (charsRemoves == 0) { // easy
         QTextCursor cursor(m_document);
         cursor.setPosition(from);
         cursor.setPosition(from + charsAdded, QTextCursor::KeepAnchor);
         debugTextShape << "   added text:" << cursor.selectedText();
     } else {
         bool prev = m_tool->m_allowAddUndoCommand;
         m_tool->m_allowAddUndoCommand = false;
         m_reverseUndo ? m_document->redo() : m_document->undo();
         QTextCursor cursor(m_document);
         cursor.setPosition(from);
         cursor.setPosition(from + charsRemoves, QTextCursor::KeepAnchor);
         QString previousText = cursor.selectedText();
         m_reverseUndo ? m_document->undo() : m_document->redo();
         m_tool->m_allowAddUndoCommand = prev;
 
         cursor.setPosition(from);
         cursor.setPosition(from + charsAdded, QTextCursor::KeepAnchor);
 
         debugTextShape << "   - " << previousText;
         debugTextShape << "   + " << cursor.selectedText();
     }
 
     m_enableSignals = true;
     m_reverseUndo = false;
 */
 }
 
 void ChangeTracker::notifyForUndo()
 {
     m_reverseUndo = true;
 }