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author | Gabriel de Dietrich <gabriel.dietrich-de@nokia.com> | 2012-08-17 13:23:19 +0200 |
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committer | Qt by Nokia <qt-info@nokia.com> | 2012-08-20 12:20:55 +0200 |
commit | 806dda08d685bc5f9ed71dfe8b61f21848d48066 (patch) | |
tree | a63533a1c4a335ae17adc105abb0ae4e62e2f26e /examples/widgets/graphicsview/boxes/trackball.h | |
parent | 9f942014e31842b512c3198de035d041c59f54a9 (diff) |
Moving .qdoc files under examples/widgets/doc
Updated those .qdoc files to refer to the new relative examples
emplacement. Images and snippets to be moved later.
Also grouped all widgets related examples under widgets.
Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f
Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>
Diffstat (limited to 'examples/widgets/graphicsview/boxes/trackball.h')
-rw-r--r-- | examples/widgets/graphicsview/boxes/trackball.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/examples/widgets/graphicsview/boxes/trackball.h b/examples/widgets/graphicsview/boxes/trackball.h new file mode 100644 index 0000000000..42a233c4f8 --- /dev/null +++ b/examples/widgets/graphicsview/boxes/trackball.h @@ -0,0 +1,79 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TRACKBALL_H +#define TRACKBALL_H + +#include <QtWidgets> + +#include <QtGui/qvector3d.h> +#include <QtGui/qquaternion.h> + +class TrackBall +{ +public: + enum TrackMode + { + Plane, + Sphere, + }; + TrackBall(TrackMode mode = Sphere); + TrackBall(float angularVelocity, const QVector3D& axis, TrackMode mode = Sphere); + // coordinates in [-1,1]x[-1,1] + void push(const QPointF& p, const QQuaternion &transformation); + void move(const QPointF& p, const QQuaternion &transformation); + void release(const QPointF& p, const QQuaternion &transformation); + void start(); // starts clock + void stop(); // stops clock + QQuaternion rotation() const; +private: + QQuaternion m_rotation; + QVector3D m_axis; + float m_angularVelocity; + + QPointF m_lastPos; + QTime m_lastTime; + bool m_paused; + bool m_pressed; + TrackMode m_mode; +}; + +#endif |