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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_H
#define CAMERA_H
#include "component.h"
#include <qt3dcore_global.h>
#include <QMatrix4x4>
#include <QQuaternion>
#include <QVector3D>
namespace Qt3D {
class CameraPrivate;
class QT3DCORESHARED_EXPORT Camera : public Component
{
Q_OBJECT
// TODO Move view matrix out of the camera and use Transform component (once it exists)
Q_PROPERTY(QVector3D position READ position WRITE setPosition)
Q_PROPERTY(QVector3D upVector READ upVector WRITE setUpVector)
Q_PROPERTY(QVector3D viewCenter READ viewCenter WRITE setViewCenter)
Q_PROPERTY(ProjectionType projectionType READ projectionType WRITE setProjectionType NOTIFY projectionTypeChanged)
Q_PROPERTY(float nearPlane READ nearPlane WRITE setNearPlane NOTIFY nearPlaneChanged)
Q_PROPERTY(float farPlane READ farPlane WRITE setFarPlane NOTIFY farPlaneChanged)
Q_PROPERTY(float fieldOfView READ fieldOfView WRITE setFieldOfView NOTIFY fieldOfViewChanged)
Q_PROPERTY(float aspectRatio READ aspectRatio WRITE setAspectRatio NOTIFY aspectRatioChanged)
Q_PROPERTY(float left READ left WRITE setLeft NOTIFY leftChanged)
Q_PROPERTY(float right READ right WRITE setRight NOTIFY rightChanged)
Q_PROPERTY(float bottom READ bottom WRITE setBottom NOTIFY bottomChanged)
Q_PROPERTY(float top READ top WRITE setTop NOTIFY topChanged)
Q_ENUMS( ProjectionType )
public:
explicit Camera(Node *parent = 0);
enum ProjectionType {
OrthogonalProjection,
PerspectiveProjection
};
enum CameraTranslationOption {
TranslateViewCenter,
DontTranslateViewCenter
};
void setViewMatrix(const QMatrix4x4& m);
QVector3D position() const;
QVector3D upVector() const;
QVector3D viewCenter() const;
QVector3D viewVector() const;
void setProjectionType(ProjectionType projectioType);
ProjectionType projectionType() const;
void setNearPlane(float nearPlane);
float nearPlane() const;
void setFarPlane(float nearPlane);
float farPlane() const;
void setFieldOfView(float fieldOfView);
float fieldOfView() const;
void setAspectRatio(float aspectRatio);
float aspectRatio() const;
void setLeft(float left);
float left() const;
void setRight(float right);
float right() const;
void setBottom(float bottom);
float bottom() const;
void setTop(float top);
float top() const;
QMatrix4x4 viewMatrix() const;
QMatrix4x4 projectionMatrix() const;
QMatrix4x4 viewProjectionMatrix() const;
QQuaternion tiltRotation(float angle) const;
QQuaternion panRotation(float angle) const;
QQuaternion rollRotation(float angle) const;
public slots:
void setOrthographicProjection(float left, float right,
float bottom, float top,
float nearPlane, float farPlane);
void setPerspectiveProjection(float fieldOfView, float aspect,
float nearPlane, float farPlane);
// TODO These slots should likely be on a modifier one layer up
void setPosition( const QVector3D& position );
void setUpVector( const QVector3D& upVector );
void setViewCenter( const QVector3D& viewCenter );
// Translate relative to camera orientation axes
void translate( const QVector3D& vLocal, CameraTranslationOption option = TranslateViewCenter );
// Translate relative to world axes
void translateWorld( const QVector3D& vWorld, CameraTranslationOption option = TranslateViewCenter );
void tilt( const float& angle );
void pan( const float& angle );
void roll( const float& angle );
void tiltAboutViewCenter( const float& angle );
void panAboutViewCenter( const float& angle );
void rollAboutViewCenter( const float& angle );
void rotate( const QQuaternion& q );
void rotateAboutViewCenter( const QQuaternion& q );
signals:
void projectionTypeChanged();
void nearPlaneChanged();
void farPlaneChanged();
void fieldOfViewChanged();
void aspectRatioChanged();
void leftChanged();
void rightChanged();
void bottomChanged();
void topChanged();
protected:
Q_DECLARE_PRIVATE(Camera)
private:
CameraPrivate* d_ptr;
};
}
#endif // CAMERA_H
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