Refactored some casts

Authored by carlos_hdc on Oct 11 2018, 9:56 PM.

Description

Refactored some casts

Summary: Refactored some lines to reduce repeated casts

Reviewers: tcanabrava, filipesaraiva

Reviewed By: filipesaraiva

Subscribers: kde-edu

Tags: KDE Edu

Differential Revision: https://phabricator.kde.org/D16132