FGFS-4.1/OpenSceneGraph
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Added MapIteratorObject and support for it in the lua plugin to provide map iterator functionality.

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This commit is contained in:
Robert Osfield
2014-02-26 18:18:08 +00:00
parent 9394215d31
commit 46381cb15c
2 changed files with 233 additions and 31 deletions
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65
include/osgDB/Serializer
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@@ -1127,6 +1127,44 @@ public:
unsigned int _numElementsOnRow;
};
class MapIteratorObject : public osg::Object
{
public:
MapIteratorObject():
_keyType(BaseSerializer::RW_UNDEFINED), _keySize(0),
_elementType(BaseSerializer::RW_UNDEFINED),_elementSize(0) {}
MapIteratorObject(BaseSerializer::Type keyType, unsigned int keySize, BaseSerializer::Type elementType, unsigned int elementSize):
_keyType(keyType), _keySize(keySize),
_elementType(elementType),_elementSize(elementSize) {}
MapIteratorObject(const MapIteratorObject& rhs, const osg::CopyOp copyop=osg::CopyOp::SHALLOW_COPY):
osg::Object(rhs, copyop),
_keyType(rhs._keyType), _keySize(rhs._keySize),
_elementType(rhs._elementType),_elementSize(rhs._elementSize) {}
META_Object(osgDB, MapIteratorObject);
BaseSerializer::Type getKeyType() const { return _keyType; }
unsigned int getKeySize() const { return _keySize; }
BaseSerializer::Type getElementType() const { return _elementType; }
unsigned int getElementSize() const { return _elementSize; }
virtual bool advance() { return false; }
virtual bool valid() const { return false; }
virtual const void* getKey() const { return 0; }
virtual void* getElement() const { return 0; }
virtual void setElement(void* ptr) const {}
protected:
BaseSerializer::Type _keyType;
unsigned int _keySize;
BaseSerializer::Type _elementType;
unsigned int _elementSize;
};
class MapBaseSerializer : public BaseSerializer
{
public:
@@ -1147,6 +1185,8 @@ public:
virtual const void* getElement(const osg::Object& obj, void* ptrKey) const { return 0; }
virtual unsigned int size(const osg::Object& obj) const { return 0; }
virtual MapIteratorObject* createIterator(osg::Object& obj) const { return 0; }
protected:
Type _keyType;
unsigned int _keySize;
@@ -1163,6 +1203,7 @@ public:
typedef typename P::value_type ValueType;
typedef typename P::key_type KeyType;
typedef typename P::mapped_type ElementType;
typedef typename P::iterator Iterator;
typedef typename P::const_iterator ConstIterator;
typedef P& (C::*Getter)();
typedef const P& (C::*ConstGetter)() const;
@@ -1212,6 +1253,30 @@ public:
return map.size();
}
struct MapIterator : public MapIteratorObject
{
MapIterator(BaseSerializer::Type keyType, unsigned int keySize, BaseSerializer::Type elementType, unsigned int elementSize,
Iterator itr, Iterator endItr):
MapIteratorObject(keyType, keySize, elementType, elementSize),
_itr(itr),_endItr(endItr) {}
Iterator _itr;
Iterator _endItr;
virtual bool advance() { if (valid()) ++_itr; return valid(); }
virtual bool valid() const { return _itr!=_endItr; }
virtual const void* getKey() const { return valid() ? &(_itr->first) : 0; }
virtual void* getElement() const { return valid() ? &(_itr->second) : 0; }
virtual void setElement(void* ptr) const { if (valid()) _itr->second = *reinterpret_cast<ElementType*>(ptr); }
};
virtual MapIteratorObject* createIterator(osg::Object& obj) const
{
C& object = OBJECT_CAST<C&>(obj);
P& map = (object.*_getter)();
return new MapIterator(_keyType, _keySize, _elementType, _elementSize, map.begin(), map.end());
}
virtual bool read( InputStream& is, osg::Object& obj )
{
C& object = OBJECT_CAST<C&>(obj);