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/*
* render_osg_camera_manipulator.h - supports 3D interactive manipulators
*
* Copyright (c) 2018 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Zong Wei <wei.zong@intel.com>
*/
#ifndef XCAM_OSG_CAMERA_MANIPULATOR_H
#define XCAM_OSG_CAMERA_MANIPULATOR_H
#include <osgGA/StandardManipulator>
namespace XCam {
class RenderOsgCameraManipulator
: public osgGA::StandardManipulator
{
public:
explicit RenderOsgCameraManipulator ();
virtual ~RenderOsgCameraManipulator ();
virtual void setByMatrix (const osg::Matrixd &matrix)
{
(void)matrix;
}
virtual void setByInverseMatrix (const osg::Matrixd &matrix)
{
(void)matrix;
}
virtual osg::Matrixd getMatrix () const;
virtual osg::Matrixd getInverseMatrix () const;
virtual void home (double currentTime);
virtual void setTransformation (const osg::Vec3d &eye, const osg::Quat &rotation)
{
(void)eye;
(void)rotation;
}
virtual void setTransformation (const osg::Vec3d &eye, const osg::Vec3d ¢er, const osg::Vec3d &up)
{
(void)eye;
(void)center;
(void)up;
}
virtual void getTransformation (osg::Vec3d &eye, osg::Quat &rotation) const
{
(void)eye;
(void)rotation;
}
virtual void getTransformation (osg::Vec3d &eye, osg::Vec3d ¢er, osg::Vec3d &up) const
{
(void)eye;
(void)center;
(void)up;
}
void setInitialValues (float angle, float length, float width, float height)
{
mAngle = angle;
mLength = length;
mWidth = width;
mHeight = height;
mMinHeight = height / 2.0f;
mUp = osg::Vec3d(0.0f, 0.0f, 1.0f);
}
private:
RenderOsgCameraManipulator (RenderOsgCameraManipulator const &other);
RenderOsgCameraManipulator &operator= (RenderOsgCameraManipulator const &other);
virtual bool handleKeyDown (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &us);
virtual bool handleMouseWheel (const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &us);
virtual bool performMovementLeftMouseButton (const double eventTimeDelta, const double dx, const double dy);
void rotate (float deltaAngle);
void modifyHeight (float delta);
void getEyePosition (osg::Vec3d &eye) const;
void getLookAtPosition (osg::Vec3d ¢er) const;
float mAngle;
float mLookAtOffset;
float mMaxLookAtOffset;
float mLength;
float mWidth;
float mHeight;
float mMaxHeight;
float mMinHeight;
float mEyePosScale;
osg::Vec3d mUp;
};
} // namespace XCam
#endif // XCAM_OSG_CAMERA_MANIPULATOR_H
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