Add a DiffShowEditor showing an additional info

Task-number: QTCREATORBUG-9489

Change-Id: I3ae2e59ccaf397f4236505f21e027a42e2798784
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Reviewed-by: Petar Perisin <petar.perisin@gmail.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

src/plugins/diffeditor/diffeditorfactory.cpp

@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "diffeditorfactory.h"
+#include "diffeditor.h"
+#include "diffeditorwidget.h"
+#include "diffeditorconstants.h"
+
+#include <QCoreApplication>
+
+namespace DiffEditor {
+
+namespace Internal {
+
+DiffEditorFactory::DiffEditorFactory(QObject *parent)
+    : IEditorFactory(parent),
+      m_mimeTypes(QLatin1String(Constants::DIFF_EDITOR_MIMETYPE))
+{
+}
+
+Core::Id DiffEditorFactory::id() const
+{
+    return Constants::DIFF_EDITOR_ID;
+}
+
+QString DiffEditorFactory::displayName() const
+{
+    return qApp->translate("DiffEditorFactory", Constants::DIFF_EDITOR_DISPLAY_NAME);
+}
+
+Core::IEditor *DiffEditorFactory::createEditor(QWidget *parent)
+{
+    DiffEditorWidget *editorWidget = new DiffEditorWidget(parent);
+    DiffEditor *editor = new DiffEditor(editorWidget);
+    return editor;
+}
+
+QStringList DiffEditorFactory::mimeTypes() const
+{
+    return m_mimeTypes;
+}
+
+} // namespace Internal
+} // namespace DiffEditor