QMarginsF: add qFuzzyCompare and qFuzzyIsNull overloads

[ChangeLog][QtCore][QMarginsF] Added qFuzzyCompare and qFuzzyIsNull
overloads for QMarginsF

Task-number: QTBUG-120308
Change-Id: I7c1ceaa9ba544458738b71bf326395eef59e7a54
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

2 files changed, 27 insertions, 1 deletions

diff --git a/src/corelib/tools/qmargins.cpp b/src/corelib/tools/qmargins.cpp
index fbb431e7a4..c4cd0da30d 100644
--- a/src/corelib/tools/qmargins.cpp
+++ b/src/corelib/tools/qmargins.cpp
@@ -754,6 +754,22 @@ QDebug operator<<(QDebug dbg, const QMargins &m)
     \sa QMarginsF(), QMargins::toMarginsF()
 */
 
+/*!
+    \fn bool QMarginsF::qFuzzyCompare(const QMarginsF &lhs, const QMarginsF &rhs)
+    \since 6.8
+
+    Returns \c true if \a lhs is approximately equal to \a rhs;
+    otherwise returns \c false.
+*/
+
+/*!
+    \fn bool QMarginsF::qFuzzyIsNull(const QMarginsF &margins)
+    \since 6.8
+
+    Returns \c true if all components of margsins \a margins are
+    approximately equal to zero; otherwise returns \c false.
+*/
+
 /*****************************************************************************
   QMarginsF stream functions
  *****************************************************************************/
diff --git a/src/corelib/tools/qmargins.h b/src/corelib/tools/qmargins.h
index feaa91824a..3b29860d66 100644
--- a/src/corelib/tools/qmargins.h
+++ b/src/corelib/tools/qmargins.h
@@ -302,7 +302,7 @@ private:
 
     QT_WARNING_PUSH
     QT_WARNING_DISABLE_FLOAT_COMPARE
-    friend constexpr bool comparesEqual(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
+    friend constexpr bool qFuzzyCompare(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
     {
         return ((!lhs.m_left || !rhs.m_left) ? qFuzzyIsNull(lhs.m_left - rhs.m_left)
                                              : qFuzzyCompare(lhs.m_left, rhs.m_left))
@@ -314,6 +314,16 @@ private:
                                                      : qFuzzyCompare(lhs.m_bottom, rhs.m_bottom));
     }
     QT_WARNING_POP
+    friend constexpr bool qFuzzyIsNull(const QMarginsF &m) noexcept
+    {
+        return qFuzzyIsNull(m.m_left) && qFuzzyIsNull(m.m_top)
+                && qFuzzyIsNull(m.m_right) && qFuzzyIsNull(m.m_bottom);
+    }
+
+    friend constexpr bool comparesEqual(const QMarginsF &lhs, const QMarginsF &rhs) noexcept
+    {
+        return qFuzzyCompare(lhs, rhs);
+    }
     Q_DECLARE_EQUALITY_COMPARABLE_LITERAL_TYPE(QMarginsF)
 
     friend constexpr bool comparesEqual(const QMarginsF &lhs, const QMargins &rhs) noexcept