Bug 522103 - Refactor usage of StyledText#getOffsetAtLocation(Point)

Use new method getOffsetAtPoint(Point).
Added dependency restriction on org.eclipse.swt.

Change-Id: Ic441ba3bf5208f45322c2cb454a0171727789f11
Signed-off-by: Karsten Thoms <karsten.thoms@itemis.de>
2 files changed