Method AppendProperties

xmpsdk/src/XMPUtils-FileInfo.cpp:1144–1189

class static */

// ----------------

/* class static */ void
XMPUtils::AppendProperties ( const XMPMeta & source,
							 XMPMeta *		 dest,
							 XMP_OptionBits	 options )
{
	XMP_Assert ( dest != 0 );	// ! Enforced by wrapper.

	const bool doAll	   = ((options & kXMPUtil_DoAllProperties) != 0);
	const bool replaceOld  = ((options & kXMPUtil_ReplaceOldValues) != 0);
	const bool deleteEmpty = ((options & kXMPUtil_DeleteEmptyValues) != 0);

	for ( size_t schemaNum = 0, schemaLim = source.tree.children.size(); schemaNum != schemaLim; ++schemaNum ) {

		const XMP_Node * sourceSchema = source.tree.children[schemaNum];

		// Make sure we have a destination schema node. Remember if it is newly created.
		
		XMP_Node * destSchema = FindSchemaNode ( &dest->tree, sourceSchema->name.c_str(), kXMP_ExistingOnly );
		const bool newDestSchema = (destSchema == 0);
		if ( newDestSchema ) {
			destSchema = new XMP_Node ( &dest->tree, sourceSchema->name, sourceSchema->value, kXMP_SchemaNode );
			dest->tree.children.push_back ( destSchema );
		}

		// Process the source schema's children. Do this backwards in case deleteEmpty is set.
		
		for ( long propNum = ((long)sourceSchema->children.size() - 1); propNum >= 0; --propNum ) {
			const XMP_Node * sourceProp = sourceSchema->children[propNum];
			if ( doAll || IsExternalProperty ( sourceSchema->name, sourceProp->name ) ) {
				AppendSubtree ( sourceProp, destSchema, replaceOld, deleteEmpty );
// ***				RemoveMultiValueInfo ( dest, sourceSchema->name.c_str(), sourceProp->name.c_str() );
			}
		}
		
		if ( destSchema->children.empty() ) {
			if ( newDestSchema ) {
				delete ( destSchema );
				dest->tree.children.pop_back();
			} else if ( deleteEmpty ) {
				DeleteEmptySchema ( destSchema );
			}
		}
		
	}

}	// AppendProperties


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