Bug 334276

Add operator== and operator!= to the classes GeoDataSnippet and GeoDataLookAt. Have GeoDataFeature override the equals() method of GeoDataObject. Inside call its parent's equals method and check the members (see GeoDataFeature_p.h). The static ones and ref should be ignored. Instead of checking m_visualCategory and m_style, check that *style() == *other.style(). Be careful when checking m_styleMap since it is a pointer that can be 0 (i.e. don't call *m_styleMap if m_styleMap==0. You can do something like (!m_styleMap && !other.m_styleMap) || (m_styleMap && other.m_styleMap && *m_styleMap == *other.m_styleMap) if you want a short implementation). Similar for m_abstractView, which however is even more complicated because it does not have operator== directly -- cast it to camera and lookat depending on the nodeType and compare them.

Extend TestEquality for new unit test methods for GeoDataSnippet and GeoDataLookAt instances. Extend the existing methods for GeoDataFeature derived classes to set and check feature related properties in their checks as well.

Make sure to compile Marble with the BUILD_MARBLE_TESTS=TRUE option enabled and run the test case from the build folder (run tests/TestEquality). Submit a review request at https://git.reviewboard.kde.org.

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