add back close button to the about dialog

Some windowmanagers on small devides do not have the close window button,
so all dialogs should have its own way how to diappear.

It is now done like in other application. They use "Close" button instead
of "OK". They put it into the right side and delimit it by a line, so
it looks like another dialog in the application.

1 files changed, 2 insertions, 0 deletions

diff --git a/cui/source/inc/about.hxx b/cui/source/inc/about.hxx
index 684ad66e5310..a20b2a8bec8c 100644
--- a/cui/source/inc/about.hxx
+++ b/cui/source/inc/about.hxx
@@ -52,6 +52,8 @@ private:
     svt::FixedHyperlink aInfoLink;
     svt::FixedHyperlink aTdfLink;
     svt::FixedHyperlink aFeaturesLink;
+    FixedLine           aButtonsLine;
+    CancelButton        aCancelButton;
 
     String aVersionData;
     String aVersionTextStr;