Polymorphic additions to expressions: Add an expression base class
with a method for dynamically determining the type of an expression.
Add variables, predicates and boolian expressions.
Support for parsing trees of expressions
An SGRawBase class has been added as a base class to the SGRawValue
hierarchy so that SGPropertyValue functions don't necessarily need to
know the type of the value stored in the node.
A new SGRawValueContainer class stores properties that shouldn't be
stored in the node itself. PropertyTraits indicates if a type is
stored in the property node or externally.
Add getValue and SetValue template member functions to SGPropertyNode.
Read and write new extended properties.
Rearrange props.hxx a bit so that the template magic actually works.
Split out extended raw value virtual functions into a seperate base class.
SGRawExtended is chosen as a base class of SGRawValue for extended property
types.
Change most uses of the SGPropertyNode _value union to use static_cast.
Move SGPropertyNode::Type out of the class into simgear::props namespace. Add
a PropertyTraits class so that templates can calculate the property type tag
based on a C++ type.
In destructor, delete _value.val if it is not 0 (and the property is not
aliased).
Extend SGAtomic with atomic exchange and add.
Import updates from the original implementation of that in OpenFDM.
Modified Files:
Makefile.am SGAtomic.cxx SGAtomic.hxx SGReferenced.hxx
SGSharedPtr.hxx
Added Files:
SGWeakPtr.hxx SGWeakReferenced.hxx
Make sg_throwable inherit from std::exception.
change exception objects to contain C strings: exception objects should not
include objects, like std::string, whose copy constructor could throw.
Move call of SGModelData::modelLoaded directly into the xml reader.
Modified Files:
simgear/scene/model/SGPagedLOD.cxx
simgear/scene/model/modellib.hxx
simgear/scene/model/modellib.cxx
simgear/scene/model/SGReaderWriterXML.cxx
Should make the Nasal code for some xml models work again.
Modified Files:
simgear/scene/model/SGPagedLOD.cxx
simgear/scene/model/SGReaderWriterXML.cxx
simgear/scene/model/modellib.cxx
simgear/scene/model/modellib.hxx
support cartesian waypoints and compute distance off a cartesian route.
Add a helper to access the total route distance.
Should not cause any visible functionality change.
timoore