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/****************************************************************************
**
** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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.
**
** 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef CAMERA_P_H
#define CAMERA_P_H
#include <QMatrix4x4>
#include <QVector3D>
namespace Qt3D {
class CameraPrivate
{
public:
CameraPrivate( Camera *qq )
: q_ptr( qq )
, m_position( 0.0f, 0.0f, 1.0f )
, m_upVector( 0.0f, 1.0f, 0.0f )
, m_viewCenter( 0.0f, 0.0f, 0.0f )
, m_cameraToCenter( 0.0f, 0.0f, -1.0f )
, m_projectionType( Camera::OrthogonalProjection )
, m_nearPlane( 0.1f )
, m_farPlane( 1024.0f )
, m_fieldOfView( 25.0f )
, m_aspectRatio( 1.0f )
, m_left( -0.5 )
, m_right( 0.5f )
, m_bottom( -0.5f )
, m_top( 0.5f )
, m_viewMatrixDirty( true )
, m_viewProjectionMatrixDirty( true )
, m_syncNeeded( false )
{
updateOrthogonalProjection();
}
~CameraPrivate()
{
}
inline void updatePerpectiveProjection()
{
m_projectionMatrix.setToIdentity();
m_projectionMatrix.perspective( m_fieldOfView, m_aspectRatio, m_nearPlane, m_farPlane );
m_viewProjectionMatrixDirty = true;
m_syncNeeded = true;
}
inline void updateOrthogonalProjection()
{
m_projectionMatrix.setToIdentity();
m_projectionMatrix.ortho( m_left, m_right, m_bottom, m_top, m_nearPlane, m_farPlane );
m_viewProjectionMatrixDirty = true;
m_syncNeeded = true;
}
Q_DECLARE_PUBLIC( Camera )
Camera *q_ptr;
QVector3D m_position;
QVector3D m_upVector;
QVector3D m_viewCenter;
QVector3D m_cameraToCenter; // The vector from the camera position to the view center
Camera::ProjectionType m_projectionType;
float m_nearPlane;
float m_farPlane;
float m_fieldOfView;
float m_aspectRatio;
float m_left;
float m_right;
float m_bottom;
float m_top;
mutable QMatrix4x4 m_viewMatrix;
mutable QMatrix4x4 m_projectionMatrix;
mutable QMatrix4x4 m_viewProjectionMatrix;
mutable bool m_viewMatrixDirty;
mutable bool m_viewProjectionMatrixDirty;
mutable bool m_syncNeeded;
};
}
#endif // CAMERA_P_H
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