Utils: Add round progress indicator widget

Change-Id: Ia3a51fb99ae6cec1b7b3c135d272e92d503128dc
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/libs/utils/progressindicator.h

@@ -0,0 +1,74 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 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://www.qt.io/licensing.  For further information
+** use the contact form at http://www.qt.io/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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** 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.
+**
+****************************************************************************/
+
+
+#ifndef PROGRESSINDICATOR_H
+#define PROGRESSINDICATOR_H
+
+#include "utils_global.h"
+
+#include <QTimer>
+#include <QWidget>
+
+namespace Utils {
+
+namespace Internal { class ProgressIndicatorPrivate; }
+
+class QTCREATOR_UTILS_EXPORT ProgressIndicator : public QWidget
+{
+    Q_OBJECT
+public:
+    enum Size {
+        Small,
+        Large
+    };
+
+    explicit ProgressIndicator(Size size, QWidget *parent = 0);
+
+    QSize sizeHint() const;
+
+protected:
+    void paintEvent(QPaintEvent *);
+    void showEvent(QShowEvent *);
+    void hideEvent(QHideEvent *);
+
+private:
+    void step();
+
+    ProgressIndicator::Size m_size;
+    int m_rotationStep;
+    int m_rotation;
+    QTimer m_timer;
+    QPixmap m_pixmap;
+};
+
+} // Utils
+
+#endif // PROGRESSINDICATOR_H