249 lines
8.1 KiB
C++
249 lines
8.1 KiB
C++
|
// Copyright (C) 2009 - 2012 Mathias Froehlich
|
||
|
|
//
|
||
|
|
// This program is free software; you can redistribute it and/or
|
||
|
|
// modify it under the terms of the GNU General Public License as
|
||
|
|
// published by the Free Software Foundation; either version 2 of the
|
||
|
|
// License, or (at your option) any later version.
|
||
|
|
//
|
||
|
|
// This program is distributed in the hope that it will be useful, but
|
||
|
|
// WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||
|
|
// General Public License for more details.
|
||
|
|
//
|
||
|
|
// You should have received a copy of the GNU General Public License
|
||
|
|
// along with this program; if not, write to the Free Software
|
||
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
||
|
|
|
||
|
|
#ifdef HAVE_CONFIG_H
|
||
|
|
#include <config.h>
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "HLACameraManipulator.hxx"
|
||
|
|
|
||
|
|
#include <simgear/scene/util/OsgMath.hxx>
|
||
|
|
#include "HLAPerspectiveViewer.hxx"
|
||
|
|
#include "Viewer.hxx"
|
||
|
|
|
||
|
|
namespace fgviewer {
|
||
|
|
|
||
|
|
HLACameraManipulator::HLACameraManipulator(HLAPerspectiveViewer* perspectiveViewer) :
|
||
|
|
_viewMatrix(osg::Matrixd::identity()),
|
||
|
|
_inverseViewMatrix(osg::Matrixd::identity()),
|
||
|
|
_lastMousePos(0, 0),
|
||
|
|
_perspectiveViewer(perspectiveViewer)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
HLACameraManipulator::HLACameraManipulator(const HLACameraManipulator& cameraManipulator, const osg::CopyOp& copyOp) :
|
||
|
|
osgGA::CameraManipulator(cameraManipulator, copyOp),
|
||
|
|
_viewMatrix(cameraManipulator._viewMatrix),
|
||
|
|
_inverseViewMatrix(cameraManipulator._inverseViewMatrix),
|
||
|
|
_lastMousePos(cameraManipulator._lastMousePos),
|
||
|
|
_perspectiveViewer(cameraManipulator._perspectiveViewer)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
HLACameraManipulator::~HLACameraManipulator()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::setByMatrix(const osg::Matrixd& matrix)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::setByInverseMatrix(const osg::Matrixd& matrix)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
osg::Matrixd
|
||
|
|
HLACameraManipulator::getMatrix() const
|
||
|
|
{
|
||
|
|
return _viewMatrix;
|
||
|
|
}
|
||
|
|
|
||
|
|
osg::Matrixd
|
||
|
|
HLACameraManipulator::getInverseMatrix() const
|
||
|
|
{
|
||
|
|
return _inverseViewMatrix;
|
||
|
|
}
|
||
|
|
|
||
|
|
bool
|
||
|
|
HLACameraManipulator::handle(const osgGA::GUIEventAdapter& eventAdapter, osgGA::GUIActionAdapter& actionAdapter)
|
||
|
|
{
|
||
|
|
if (_handle(eventAdapter, static_cast<Viewer&>(actionAdapter)))
|
||
|
|
return true;
|
||
|
|
return osgGA::CameraManipulator::handle(eventAdapter, actionAdapter);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool
|
||
|
|
HLACameraManipulator::_handle(const osgGA::GUIEventAdapter& eventAdapter, Viewer& viewer)
|
||
|
|
{
|
||
|
|
switch (eventAdapter.getEventType()) {
|
||
|
|
case osgGA::GUIEventAdapter::PUSH:
|
||
|
|
_lastMousePos = osg::Vec2(eventAdapter.getXnormalized(), eventAdapter.getYnormalized());
|
||
|
|
break;
|
||
|
|
case osgGA::GUIEventAdapter::RELEASE:
|
||
|
|
break;
|
||
|
|
case osgGA::GUIEventAdapter::DOUBLECLICK:
|
||
|
|
break;
|
||
|
|
case osgGA::GUIEventAdapter::DRAG:
|
||
|
|
if (!eventAdapter.getModKeyMask())
|
||
|
|
_rotateView(osg::Vec2(eventAdapter.getXnormalized(), eventAdapter.getYnormalized()) - _lastMousePos);
|
||
|
|
else if (eventAdapter.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_CTRL)
|
||
|
|
_rotateSun(osg::Vec2(eventAdapter.getXnormalized(), eventAdapter.getYnormalized()) - _lastMousePos, viewer);
|
||
|
|
_lastMousePos = osg::Vec2(eventAdapter.getXnormalized(), eventAdapter.getYnormalized());
|
||
|
|
break;
|
||
|
|
case osgGA::GUIEventAdapter::MOVE:
|
||
|
|
break;
|
||
|
|
case osgGA::GUIEventAdapter::SCROLL:
|
||
|
|
break;
|
||
|
|
|
||
|
|
case osgGA::GUIEventAdapter::KEYDOWN:
|
||
|
|
_handleKeyDownEvent(eventAdapter, viewer);
|
||
|
|
break;
|
||
|
|
case osgGA::GUIEventAdapter::KEYUP:
|
||
|
|
_handleKeyUpEvent(eventAdapter, viewer);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case osgGA::GUIEventAdapter::FRAME:
|
||
|
|
_handleFrameEvent(viewer);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::_handleFrameEvent(osgGA::GUIActionAdapter& actionAdapter)
|
||
|
|
{
|
||
|
|
// Note that eventAdapter.getTime() returns the reference time instead of the simulation time
|
||
|
|
osg::View* view = actionAdapter.asView();
|
||
|
|
if (!view)
|
||
|
|
return;
|
||
|
|
osg::FrameStamp* frameStamp = view->getFrameStamp();
|
||
|
|
if (!frameStamp)
|
||
|
|
return;
|
||
|
|
if (!_perspectiveViewer.valid())
|
||
|
|
return;
|
||
|
|
|
||
|
|
SGLocationd location;
|
||
|
|
location = _perspectiveViewer->getLocation(SGTimeStamp::fromSec(frameStamp->getSimulationTime()));
|
||
|
|
|
||
|
|
// Update the main cameras view matrix
|
||
|
|
_viewMatrix = osg::Matrixd::identity();
|
||
|
|
// transform from the simulation typical x-forward/y-right/z-down
|
||
|
|
// to the opengl camera system x-right/y-up/z-back
|
||
|
|
// _viewMatrix.postMultRotate(toOsg(SGQuatd::fromEulerDeg(90, 0, -90)));
|
||
|
|
_viewMatrix.postMultRotate(toOsg(SGQuatd(-0.5, -0.5, 0.5, 0.5)));
|
||
|
|
// the orientation of the view
|
||
|
|
_viewMatrix.postMultRotate(toOsg(location.getOrientation()));
|
||
|
|
// the position of the view
|
||
|
|
_viewMatrix.postMultTranslate(toOsg(location.getPosition()));
|
||
|
|
_inverseViewMatrix = osg::Matrixd::inverse(_viewMatrix);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool
|
||
|
|
HLACameraManipulator::_handleKeyDownEvent(const osgGA::GUIEventAdapter& eventAdapter, Viewer& viewer)
|
||
|
|
{
|
||
|
|
if (!_perspectiveViewer.valid())
|
||
|
|
return false;
|
||
|
|
|
||
|
|
switch (eventAdapter.getKey()) {
|
||
|
|
case osgGA::GUIEventAdapter::KEY_Space:
|
||
|
|
case osgGA::GUIEventAdapter::KEY_Home:
|
||
|
|
_resetView();
|
||
|
|
return false;
|
||
|
|
|
||
|
|
case osgGA::GUIEventAdapter::KEY_Left:
|
||
|
|
_incrementEyePosition(SGVec3d(-0.1, 0, 0));
|
||
|
|
return false;
|
||
|
|
case osgGA::GUIEventAdapter::KEY_Right:
|
||
|
|
_incrementEyePosition(SGVec3d(0.1, 0, 0));
|
||
|
|
return false;
|
||
|
|
case osgGA::GUIEventAdapter::KEY_Up:
|
||
|
|
if (eventAdapter.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_CTRL) {
|
||
|
|
_perspectiveViewer->setZoomFactor(_perspectiveViewer->getZoomFactor()*1.1);
|
||
|
|
} else if (eventAdapter.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_SHIFT) {
|
||
|
|
_incrementEyePosition(SGVec3d(0, 0, 0.1));
|
||
|
|
} else {
|
||
|
|
_incrementEyePosition(SGVec3d(0, 0.1, 0));
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
case osgGA::GUIEventAdapter::KEY_Down:
|
||
|
|
if (eventAdapter.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_CTRL) {
|
||
|
|
_perspectiveViewer->setZoomFactor(_perspectiveViewer->getZoomFactor()/1.1);
|
||
|
|
} else if (eventAdapter.getModKeyMask() & osgGA::GUIEventAdapter::MODKEY_SHIFT) {
|
||
|
|
_incrementEyePosition(SGVec3d(0, 0, -0.1));
|
||
|
|
} else {
|
||
|
|
_incrementEyePosition(SGVec3d(0, -0.1, 0));
|
||
|
|
}
|
||
|
|
return false;
|
||
|
|
default:
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
bool
|
||
|
|
HLACameraManipulator::_handleKeyUpEvent(const osgGA::GUIEventAdapter& eventAdapter, Viewer& viewer)
|
||
|
|
{
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::_incrementEyePosition(const SGVec3d& offset)
|
||
|
|
{
|
||
|
|
if (!_perspectiveViewer.valid())
|
||
|
|
return;
|
||
|
|
HLAEyeTracker* eyeTracker = _perspectiveViewer->getEyeTracker();
|
||
|
|
if (!eyeTracker)
|
||
|
|
return;
|
||
|
|
eyeTracker->setLeftEyeOffset(eyeTracker->getLeftEyeOffset() + offset);
|
||
|
|
eyeTracker->setRightEyeOffset(eyeTracker->getRightEyeOffset() + offset);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::_resetView()
|
||
|
|
{
|
||
|
|
if (!_perspectiveViewer.valid())
|
||
|
|
return;
|
||
|
|
_perspectiveViewer->setPosition(SGVec3d::zeros());
|
||
|
|
_perspectiveViewer->setOrientation(SGQuatd::unit());
|
||
|
|
_perspectiveViewer->setZoomFactor(1);
|
||
|
|
HLAEyeTracker* eyeTracker = _perspectiveViewer->getEyeTracker();
|
||
|
|
if (!eyeTracker)
|
||
|
|
return;
|
||
|
|
eyeTracker->setLeftEyeOffset(SGVec3d::zeros());
|
||
|
|
eyeTracker->setRightEyeOffset(SGVec3d::zeros());
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::_rotateView(const osg::Vec2& inc)
|
||
|
|
{
|
||
|
|
if (!_perspectiveViewer.valid())
|
||
|
|
return;
|
||
|
|
double zDeg, yDeg, xDeg;
|
||
|
|
_perspectiveViewer->getOrientation().getEulerRad(zDeg, yDeg, xDeg);
|
||
|
|
zDeg += inc[0];
|
||
|
|
yDeg += inc[1];
|
||
|
|
_perspectiveViewer->setOrientation(SGQuatd::fromEulerRad(zDeg, yDeg, xDeg));
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
HLACameraManipulator::_rotateSun(const osg::Vec2& inc, Viewer& viewer)
|
||
|
|
{
|
||
|
|
osg::Light* light = viewer.getLight();
|
||
|
|
if (!light)
|
||
|
|
return;
|
||
|
|
osg::Matrix m = osg::Matrix::inverse(viewer.getCamera()->getViewMatrix());
|
||
|
|
osg::Vec3 position(light->getPosition()[0], light->getPosition()[1], light->getPosition()[2]) ;
|
||
|
|
position = osg::Quat(-0.2*inc[0], osg::Matrix::transform3x3(osg::Vec3(0, 1, 0), m))*position;
|
||
|
|
position = osg::Quat(0.2*inc[1], osg::Matrix::transform3x3(osg::Vec3(1, 0, 0), m))*position;
|
||
|
|
light->setPosition(osg::Vec4(position, 0));
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace fgviewer
|