Make comparison operators in gui/painting classes hidden friends

Reduce ADL noise from QColorSpace, QPageSize, and QPageLayout with the
help of a private equals method.

Change-Id: I0082597dd216b982e8d8eb5a4bd7dd29a5d3263b
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

1 files changed, 11 insertions, 7 deletions

diff --git a/src/gui/painting/qpagesize.cpp b/src/gui/painting/qpagesize.cpp
index 7ae3e93f5a..fb7eb45b93 100644
--- a/src/gui/painting/qpagesize.cpp
+++ b/src/gui/painting/qpagesize.cpp
@@ -1249,20 +1249,15 @@ QPageSize &QPageSize::operator=(const QPageSize &other)
 */
 
 /*!
-    \relates QPageSize
+    \fn bool QPageSize::operator==(const QPageSize &lhs, const QPageSize &rhs)
 
     Returns \c true if page size \a lhs is equal to page size \a rhs,
     i.e. if the page sizes have the same attributes. Current
     attributes are size and name.
 */
 
-bool operator==(const QPageSize &lhs, const QPageSize &rhs)
-{
-    return lhs.d == rhs.d || *lhs.d == *rhs.d;
-}
 /*!
-    \fn bool operator!=(const QPageSize &lhs, const QPageSize &rhs)
-    \relates QPageSize
+    \fn bool QPageSize::operator!=(const QPageSize &lhs, const QPageSize &rhs)
 
     Returns \c true if page size \a lhs is unequal to page size \a
     rhs, i.e. if the page size has different attributes. Current
@@ -1270,6 +1265,15 @@ bool operator==(const QPageSize &lhs, const QPageSize &rhs)
 */
 
 /*!
+    \internal
+*/
+bool QPageSize::equals(const QPageSize &other) const
+{
+    return d == other.d || *d == *other.d;
+}
+
+
+/*!
     Returns \c true if this page is equivalent to the \a other page, i.e. if the
     page has the same size regardless of other attributes like name.
 */