1 files changed, 112 insertions, 0 deletions
diff --git a/src/designer/src/components/formeditor/qdesignerundostack.cpp b/src/designer/src/components/formeditor/qdesignerundostack.cpp
new file mode 100644
index 000000000..56bb04f9e
--- /dev/null
+++ b/src/designer/src/components/formeditor/qdesignerundostack.cpp
@@ -0,0 +1,112 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdesignerundostack.h"
+
+#include <QtGui/QUndoStack>
+#include <QtGui/QUndoCommand>
+
+QT_BEGIN_NAMESPACE
+
+namespace qdesigner_internal {
+
+QDesignerUndoStack::QDesignerUndoStack(QObject *parent) :
+    QObject(parent),
+    m_undoStack(new QUndoStack),
+    m_fakeDirty(false)
+{
+    connect(m_undoStack, SIGNAL(indexChanged(int)), this, SIGNAL(changed()));
+}
+
+QDesignerUndoStack::~QDesignerUndoStack()
+{ // QUndoStack is managed by the QUndoGroup
+}
+
+void QDesignerUndoStack::push(QUndoCommand * cmd)
+{
+    m_undoStack->push(cmd);
+}
+
+void QDesignerUndoStack::beginMacro(const QString &text)
+{
+    m_undoStack->beginMacro(text);
+}
+
+void QDesignerUndoStack::endMacro()
+{
+    m_undoStack->endMacro();
+}
+
+int  QDesignerUndoStack::index() const
+{
+    return m_undoStack->index();
+}
+
+const QUndoStack *QDesignerUndoStack::qundoStack() const
+{
+    return m_undoStack;
+}
+QUndoStack *QDesignerUndoStack::qundoStack()
+{
+    return m_undoStack;
+}
+
+bool QDesignerUndoStack::isDirty() const
+{
+    return m_fakeDirty || !m_undoStack->isClean();
+}
+
+void QDesignerUndoStack::setDirty(bool v)
+{
+    if (isDirty() == v)
+        return;
+    if (v) {
+        m_fakeDirty = true;
+        emit changed();
+    } else {
+        m_fakeDirty = false;
+        m_undoStack->setClean();
+    }
+}
+
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE