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a8d3a0b102
Storage and retrieval of a document by means of a stream is distributed to TObj model. Modified files: -TObj_Model.hxx, cxx - the virtual methods Load() and SaveAs() obtained a stream as an argument instead of a file name. -TObj_Application.hxx, cxx - same extension: the virtual methods LoadDocument() and SaveDocument() use a stream to open and save a document. -TObjDRAW.cxx - draw-commands TObjSave and TObjLoad are extended for -stream parameter, which allows usage of a file input or output stream instead of a file name. A new test: - bugs caf bug29901 - it creates a simple TObj-model, saves it on disk using a file stream, loads it by means of a file stream and checks the content. Modified test: - bugs caf bug28425 - just improved to proper manipulate a test-file on disk.