Complete drawinglayer attributes

All DrawingLayer Atrributes used for ptimitives need a default
constructor. Since the o3tl::cow_wrapper is used in combination
with a static default incarnation of the impl class it is better
to define that. Also needed is a working isDefault() implementation
that compares the impl class to the static default. Added missing
stuff for this.

Change-Id: I98e9fee7343112cd979b972229423ac0ef3994a6
Reviewed-on: https://gerrit.libreoffice.org/24496
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Armin Le Grand <Armin.Le.Grand@cib.de>

0 files changed, 0 insertions, 0 deletions