2 files changed, 29 insertions, 0 deletions
diff --git a/src/corelib/tools/qsize.cpp b/src/corelib/tools/qsize.cpp
index fe508ad459..2cbaae117d 100644
--- a/src/corelib/tools/qsize.cpp
+++ b/src/corelib/tools/qsize.cpp
@@ -390,7 +390,25 @@ QSize QSize::scaled(const QSize &s, Qt::AspectRatioMode mode) const noexcept
     \sa expandedTo(), scale()
 */
 
+/*!
+    \fn QSize QSize::grownBy(QMargins margins) const
+    \fn QSizeF QSizeF::grownBy(QMarginsF margins) const
+    \since 5.14
+
+    Returns the size that results from growing this size by \a margins.
+
+    \sa shrunkBy()
+*/
 
+/*!
+    \fn QSize QSize::shrunkBy(QMargins margins) const
+    \fn QSizeF QSizeF::shrunkBy(QMarginsF margins) const
+    \since 5.14
+
+    Returns the size that results from shrinking this size by \a margins.
+
+    \sa grownBy()
+*/
 
 /*****************************************************************************
   QSize stream functions
diff --git a/src/corelib/tools/qsize.h b/src/corelib/tools/qsize.h
index 4114609856..06de1cd63f 100644
--- a/src/corelib/tools/qsize.h
+++ b/src/corelib/tools/qsize.h
@@ -41,6 +41,7 @@
 #define QSIZE_H
 
 #include <QtCore/qnamespace.h>
+#include <QtCore/qmargins.h>
 
 #if defined(Q_OS_DARWIN) || defined(Q_QDOC)
 struct CGSize;
@@ -74,6 +75,11 @@ public:
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize expandedTo(const QSize &) const noexcept;
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSize boundedTo(const QSize &) const noexcept;
 
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSize grownBy(QMargins m) const noexcept
+    { return {width() + m.left() + m.right(), height() + m.top() + m.bottom()}; }
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSize shrunkBy(QMargins m) const noexcept
+    { return {width() - m.left() - m.right(), height() - m.top() - m.bottom()}; }
+
     Q_DECL_RELAXED_CONSTEXPR inline int &rwidth() noexcept;
     Q_DECL_RELAXED_CONSTEXPR inline int &rheight() noexcept;
 
@@ -238,6 +244,11 @@ public:
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF expandedTo(const QSizeF &) const noexcept;
     Q_REQUIRED_RESULT Q_DECL_CONSTEXPR inline QSizeF boundedTo(const QSizeF &) const noexcept;
 
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSizeF grownBy(QMarginsF m) const noexcept
+    { return {width() + m.left() + m.right(), height() + m.top() + m.bottom()}; }
+    Q_REQUIRED_RESULT Q_DECL_CONSTEXPR QSizeF shrunkBy(QMarginsF m) const noexcept
+    { return {width() - m.left() - m.right(), height() - m.top() - m.bottom()}; }
+
     Q_DECL_RELAXED_CONSTEXPR inline qreal &rwidth() noexcept;
     Q_DECL_RELAXED_CONSTEXPR inline qreal &rheight() noexcept;