1 files changed, 94 insertions, 0 deletions
diff --git a/chalk/core/kis_transaction.cpp b/chalk/core/kis_transaction.cpp
new file mode 100644
index 00000000..d0a10acc
--- /dev/null
+++ b/chalk/core/kis_transaction.cpp
@@ -0,0 +1,94 @@
+/*
+ *  Copyright (c) 2002 Patrick Julien <freak@codepimps.org>
+ *
+ *  This program is 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
+ *  (at your option) 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+#include "kis_types.h"
+#include "kis_global.h"
+#include "kis_tile.h"
+#include "kis_tileddatamanager.h"
+#include "kis_image.h"
+#include "kis_transaction.h"
+#include "kis_memento.h"
+#include "kis_paint_device.h"
+#include "kis_layer.h"
+
+class KisTransactionPrivate {
+public:
+    TQString m_name;
+    KisPaintDeviceSP m_device;
+    KisMementoSP m_memento;
+
+};
+
+KisTransaction::KisTransaction(const TQString& name, KisPaintDeviceSP device)
+{
+    m_private = new KisTransactionPrivate;
+
+    m_private->m_name = name;
+    m_private->m_device = device;
+    m_private->m_memento = device->getMemento();
+}
+
+KisTransaction::~KisTransaction()
+{
+    if (m_private->m_memento) {
+        // For debugging purposes
+        m_private->m_memento->setInvalid();
+    }
+    delete m_private;
+}
+
+void KisTransaction::execute()
+{
+    Q_ASSERT(m_private->m_memento != 0);
+
+    m_private->m_device->rollforward(m_private->m_memento);
+
+    TQRect rc;
+    TQ_INT32 x, y, width, height;
+    m_private->m_memento->extent(x,y,width,height);
+    rc.setRect(x + m_private->m_device->getX(), y + m_private->m_device->getY(), width, height);
+
+    KisLayerSP l = m_private->m_device->parentLayer();
+    if (l) l->setDirty(rc);
+}
+
+void KisTransaction::unexecute()
+{
+    Q_ASSERT(m_private->m_memento != 0);
+    m_private->m_device->rollback(m_private->m_memento);
+
+    TQRect rc;
+    TQ_INT32 x, y, width, height;
+    m_private->m_memento->extent(x,y,width,height);
+    rc.setRect(x + m_private->m_device->getX(), y + m_private->m_device->getY(), width, height);
+
+    KisLayerSP l = m_private->m_device->parentLayer();
+    if (l) l->setDirty(rc);
+
+}
+
+void KisTransaction::unexecuteNoUpdate()
+{
+    Q_ASSERT(m_private->m_memento != 0);
+
+    m_private->m_device->rollback(m_private->m_memento);
+}
+
+TQString KisTransaction::name() const
+{
+    return m_private->m_name;
+}