Hi,
as previously mentioned there are some issues when using serialisation with
XML. Here is a small code snippet:
Code:
#define USE_BRACKETS 1
#define USE_USER_SERIALIZER 1
namespace TestOSG
{
class TestStruct : public osg::Object
{
public:
TestStruct(void)
{
}
TestStruct(TestStruct const& test, osg::CopyOp const&
copyOperator=osg::CopyOp::SHALLOW_COPY)
:osg::Object(test,copyOperator),
m_From(test.m_From),
m_Till(test.m_Till)
{
}
META_Object(TestOSG,TestStruct);
osg::Vec3 m_From;
osg::Vec3 m_Till;
osg::Vec3 const& getFrom(void) const {return m_From;}
osg::Vec3 const& getTill(void) const {return m_Till;}
void setFrom(osg::Vec3 const& from) {m_From = from;}
void setTill(osg::Vec3 const& till) {m_Till = till;}
};
}
namespace
{
bool checkTestSerialization(TestOSG::TestStruct const&)
{
return true;
}
bool readTestSerialization(osgDB::InputStream& inputStream,
TestOSG::TestStruct& testData)
{
inputStream >> inputStream.BEGIN_BRACKET;
inputStream >> inputStream.PROPERTY("From") >> testData.m_From;
inputStream >> inputStream.PROPERTY("Till") >> testData.m_Till;
inputStream >> inputStream.END_BRACKET;
return true;
}
bool writeTestSerialization(osgDB::OutputStream& outputStream,
TestOSG::TestStruct const& testData)
{
#if (USE_BRACKETS)
outputStream << outputStream.BEGIN_BRACKET << std::endl;
#endif
outputStream << outputStream.PROPERTY("From") <<
testData.m_From << std::endl;
outputStream << outputStream.PROPERTY("Till") <<
testData.m_Till << std::endl;
#if (USE_BRACKETS)
outputStream << outputStream.END_BRACKET << std::endl;
#endif
return true;
}
}
#if (USE_USER_SERIALIZER)
REGISTER_OBJECT_WRAPPER(TestStruct,
new TestOSG::TestStruct,
TestOSG::TestStruct,
"osg::Object TestOSG::TestStruct")
{
ADD_USER_SERIALIZER(TestSerialization);
}
#else
REGISTER_OBJECT_WRAPPER(TestStruct,
new TestOSG::TestStruct,
TestOSG::TestStruct,
"osg::Object TestOSG::TestStruct")
{
ADD_VEC3_SERIALIZER(From,osg::Vec3(1,0,0));
ADD_VEC3_SERIALIZER(Till,osg::Vec3(1,0,0));
}
#endif
extern "C" void wrapper_serializer_library_TestOSG(void)
{
}
USE_SERIALIZER_WRAPPER(TestStruct)
The output depends on the flags.
USE_BRACKETS == 1
USE_USER_SERIALIZER == 0 (OK):
< ?xml version="1.0" encoding="UTF-8" ?>
< TestOSG::TestStruct>
< UniqueID attribute="1&nl;">
< From attribute="0 0 0" />
< Till attribute="0 0 0&nl;&nl;" />
< /UniqueID>
< /TestOSG::TestStruct>
USE_BRACKETS == 1
USE_USER_SERIALIZER == 1 (wrong):
< ?xml version="1.0" encoding="UTF-8" ?>
< TestOSG::TestStruct>
< UniqueID attribute="1&nl;">
< TestSerialization attribute="&nl;">
< From attribute="0 0 0&nl;">
< Till attribute="0 0 0&nl;&nl;&nl;" />
< /From>
< /TestSerialization>
< /UniqueID>
< /TestOSG::TestStruct>
USE_BRACKETS == 0
USE_USER_SERIALIZER == 1 (wrong):
< ?xml version="1.0" encoding="UTF-8" ?>
< TestOSG::TestStruct>
< UniqueID attribute="1&nl;">
< TestSerialization />
< From attribute="0 0 0" />
< Till attribute="0 0 0&nl;&nl;" />
< /UniqueID>
< /TestOSG::TestStruct>
PS: I have added the space between "<" and the following xml text because
otherwise the output does not show up.
Cheers,
Hartwig[/quote]
------------------
Read this topic online here:
http://forum.openscenegraph.org/viewtopic.php?p=72761#72761
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