The application now includes the folio number when displaying the properties of a selected element.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/branches/0.3@1324 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/qetproject.cpp

@@ -143,6 +143,17 @@ QList<Diagram *> QETProject::diagrams() const {
 	return(diagrams_);
 }
 
+/**
+	@param diagram Pointer to a Diagram object
+	@return the folio number of the given diagram object within the project,
+	or -1 if it is not part of this project.
+	Note: this returns 0 for the first diagram, not 1
+*/
+int QETProject::folioIndex(const Diagram *diagram) const {
+	// QList::indexOf returns -1 if no item matched.
+	return(diagrams_.indexOf(const_cast<Diagram *>(diagram)));
+}
+
 /**
 	@return la collection embarquee de ce projet
 */