osg::Camera* createInvertedYOrthoCamera(float width, float height) {
osg::Camera* camera = createOrthoCamera(width, height);
camera->setProjectionMatrix(createInvertedYOrthoProjectionMatrix(width, height));
return camera;
}
bool ResizeHandler::handle(
const osgGA::GUIEventAdapter& gea,
osgGA::GUIActionAdapter& gaa,
osg::Object* obj,
osg::NodeVisitor* nv
) {
osgGA::GUIEventAdapter::EventType ev = gea.getEventType();
if(ev != osgGA::GUIEventAdapter::RESIZE) return false;
osg::Matrix::value_type w = gea.getWindowWidth();
osg::Matrix::value_type h = gea.getWindowHeight();
if(_wm->isInvertedY()) _camera->setProjectionMatrix(
createInvertedYOrthoProjectionMatrix(w, h)
);
else _camera->setProjectionMatrix(osg::Matrix::ortho2D(0.0f, w, 0.0f, h));
_wm->setSize(w, h);
_wm->resizeAllWindows();
return true;
}
