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/* This file is part of the KDE project
* Copyright (C) 2007 Thomas Zander <zander@kde.org>
* Copyright (C) 2008 Pierre Stirnweiss \pierre.stirnweiss_koffice@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 <KDebug>
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);
kDebug(32500) << "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;
kDebug(32500) << "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);
kDebug(32500) << " 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);
kDebug(32500) << " - " << previousText;
kDebug(32500) << " + " << cursor.selectedText();
}
m_enableSignals = true;
m_reverseUndo = false;
*/
}
void ChangeTracker::notifyForUndo()
{
m_reverseUndo = true;
}
#include <ChangeTracker.moc>
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