Don't trust layer when using window_as_cursor
Don't trust layer when using window_as_cursor

When using QT_DIRECTFB_WINDOW_AS_CURSOR it's likely that the layer
doesn't properly support the mouse. Seeing as one might still very well
have layer support for windows I can't tie the event parsing solely to
NO_DIRECTFB_LAYER.

Reviewed-by: Donald Carr <38431beafb109b90c28ed5e81bc7ca041dd4c8fb@nokia.com>

igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,radekp/qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,radekp/qt,radekp/qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,radekp/qt,radekp/qt,igor-sfdc/qt-wk,radekp/qt,igor-sfdc/qt-wk,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,pruiz/wkhtmltopdf-qt,igor-sfdc/qt-wk,radekp/qt,igor-sfdc/qt-wk,igor-sfdc/qt-wk,radekp/qt,pruiz/wkhtmltopdf-qt,radekp/qt,radekp/qt