FGFS-4.1/OpenSceneGraph
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Added support for assigning GraphicsContext to individual GUIEventAdapter events,

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and use of this within osgViewer::View to better track the sources of events.
This commit is contained in:
Robert Osfield
2008-06-02 17:34:47 +00:00
parent 213a2d8d13
commit e09e07d45b
10 changed files with 45 additions and 31 deletions
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26
src/osgViewer/View.cpp
View File

@@ -1703,24 +1703,29 @@ bool View::containsCamera(const osg::Camera* camera) const
const osg::Camera* View::getCameraContainingPosition(float x, float y, float& local_x, float& local_y) const
{
const osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
const osgViewer::GraphicsWindow* gw = dynamic_cast<const osgViewer::GraphicsWindow*>(eventState->getGraphicsContext());
bool view_invert_y = eventState->getMouseYOrientation()==osgGA::GUIEventAdapter::Y_INCREASING_DOWNWARDS;
// osg::notify(osg::NOTICE)<<"View::getCameraContainingPosition("<<x<<","<<y<<",..,..) view_invert_y="<<view_invert_y<<std::endl;
double epsilon = 0.5;
if (_camera->getGraphicsContext() && _camera->getViewport())
if (_camera->getGraphicsContext() &&
(!gw || _camera->getGraphicsContext()==gw) &&
_camera->getViewport())
{
const osg::Viewport* viewport = _camera->getViewport();
double new_x = static_cast<double>(_camera->getGraphicsContext()->getTraits()->width) * (x - eventState->getXmin())/(eventState->getXmax()-eventState->getXmin());
double new_y = view_invert_y ?
double new_x = x;
double new_y = y;
if (!gw)
{
new_x = static_cast<double>(_camera->getGraphicsContext()->getTraits()->width) * (x - eventState->getXmin())/(eventState->getXmax()-eventState->getXmin());
new_y = view_invert_y ?
static_cast<double>(_camera->getGraphicsContext()->getTraits()->height) * (1.0 - (y- eventState->getYmin())/(eventState->getYmax()-eventState->getYmin())) :
static_cast<double>(_camera->getGraphicsContext()->getTraits()->height) * (y - eventState->getYmin())/(eventState->getYmax()-eventState->getXmin());
}
// osg::notify(osg::NOTICE)<<" new_x="<<new_x<<","<<new_y<<std::endl;
if (viewport &&
new_x >= (viewport->x()-epsilon) && new_y >= (viewport->y()-epsilon) &&
new_x < (viewport->x()+viewport->width()-1.0+epsilon) && new_y <= (viewport->y()+viewport->height()-1.0+epsilon) )
@@ -1728,7 +1733,7 @@ const osg::Camera* View::getCameraContainingPosition(float x, float y, float& lo
local_x = new_x;
local_y = new_y;
// osg::notify(osg::NOTICE)<<"Returning master camera"<<std::endl;
osg::notify(osg::INFO)<<"Returning master camera"<<std::endl;
return _camera.get();
}
@@ -1736,6 +1741,7 @@ const osg::Camera* View::getCameraContainingPosition(float x, float y, float& lo
osg::Matrix masterCameraVPW = getCamera()->getViewMatrix() * getCamera()->getProjectionMatrix();
// convert to non dimensional
x = (x - eventState->getXmin()) * 2.0 / (eventState->getXmax()-eventState->getXmin()) - 1.0;
y = (y - eventState->getYmin())* 2.0 / (eventState->getYmax()-eventState->getYmin()) - 1.0;
@@ -1748,7 +1754,7 @@ const osg::Camera* View::getCameraContainingPosition(float x, float y, float& lo
slave._camera->getAllowEventFocus() &&
slave._camera->getRenderTargetImplementation()==osg::Camera::FRAME_BUFFER)
{
// osg::notify(osg::NOTICE)<<"Testing slave camera "<<slave._camera->getName()<<std::endl;
osg::notify(osg::INFO)<<"Testing slave camera "<<slave._camera->getName()<<std::endl;
const osg::Camera* camera = slave._camera.get();
const osg::Viewport* viewport = camera ? camera->getViewport() : 0;