FGFS-4.1/OpenSceneGraph
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Added callback to locator in support of interactive updating of the volume extents

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Robert Osfield 2009-07-03 05:54:02 +00:00
parent 78229df14a
commit b37e871cec
1 changed files with 31 additions and 4 deletions
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29
include/osgVolume/Locator
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@ -19,6 +19,8 @@
#include <osg/Object>
#include <osg/Matrixd>
#include <vector>
namespace osgVolume {
class OSGVOLUME_EXPORT Locator : public osg::Object
@ -37,7 +39,7 @@ class OSGVOLUME_EXPORT Locator : public osg::Object
META_Object(osgVolume, Locator);
/** Set the transformation from local coordinates to model coordinates.*/
void setTransform(const osg::Matrixd& transform) { _transform = transform; _inverse.invert(_transform); }
void setTransform(const osg::Matrixd& transform) { _transform = transform; _inverse.invert(_transform); locatorModified(); }
/** Set the transformation from local coordinates to model coordinates.*/
const osg::Matrixd& getTransform() const { return _transform; }
@ -62,10 +64,35 @@ class OSGVOLUME_EXPORT Locator : public osg::Object
bool computeLocalBounds(osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
bool computeLocalBounds(Locator& source, osg::Vec3d& bottomLeft, osg::Vec3d& topRight) const;
/** Callback interface for enabling the monitoring of changes to the Locator.*/
class LocatorCallback : virtual public osg::Object
{
public:
LocatorCallback() {}
LocatorCallback(const LocatorCallback& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY): osg::Object(rhs,copyop) {}
META_Object(osgVolume, LocatorCallback);
virtual void locatorModified(Locator* locator) {};
protected:
virtual ~LocatorCallback() {}
};
void addCallback(LocatorCallback* callback);
void removeCallback(LocatorCallback* callback);
typedef std::vector< osg::ref_ptr<LocatorCallback> > LocatorCallbacks;
LocatorCallbacks& getLocatorCallbacks() { return _locatorCallbacks; }
const LocatorCallbacks& getLocatorCallbacks() const { return _locatorCallbacks; }
protected:
void locatorModified();
osg::Matrixd _transform;
osg::Matrixd _inverse;
LocatorCallbacks _locatorCallbacks;
};
}