QTableWidgetSelectionRange: Make it possible to compare for equality

Add operators as hidden friends, add test case to make sure that
basic value-type operations are possible with this type.

Task-number: QTBUG-255
Change-Id: I7fbf453aa16084c0b2a0079487cacb4e092ff664
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>

2 files changed, 22 insertions, 0 deletions

diff --git a/src/widgets/itemviews/qtablewidget.cpp b/src/widgets/itemviews/qtablewidget.cpp
index 5072cc9240..5c3d3385da 100644
--- a/src/widgets/itemviews/qtablewidget.cpp
+++ b/src/widgets/itemviews/qtablewidget.cpp
@@ -919,6 +919,20 @@ Qt::DropActions QTableModel::supportedDropActions() const
 */
 
 /*!
+    \fn bool QTableWidgetSelectionRange::operator==(const QTableWidgetSelectionRange &lhs, const QTableWidgetSelectionRange &rhs)
+    \since 6.3
+
+    Returns true if \a lhs and \a rhs are equal, otherwise returns false.
+*/
+
+/*!
+    \fn bool QTableWidgetSelectionRange::operator!=(const QTableWidgetSelectionRange &lhs, const QTableWidgetSelectionRange &rhs)
+    \since 6.3
+
+    Returns true if \a lhs and \a rhs are not equal, otherwise returns false.
+*/
+
+/*!
     \fn int QTableWidgetSelectionRange::topRow() const
 
     Returns the top row of the range.
diff --git a/src/widgets/itemviews/qtablewidget.h b/src/widgets/itemviews/qtablewidget.h
index 8f3a36daf1..3978bc23d6 100644
--- a/src/widgets/itemviews/qtablewidget.h
+++ b/src/widgets/itemviews/qtablewidget.h
@@ -57,6 +57,14 @@ public:
       : m_top(top), m_left(left), m_bottom(bottom), m_right(right)
     {}
 
+    friend inline bool operator==(const QTableWidgetSelectionRange &lhs,
+                                  const QTableWidgetSelectionRange &rhs)
+    { return lhs.m_top == rhs.m_top && lhs.m_left == rhs.m_left
+          && lhs.m_bottom == rhs.m_bottom && lhs.m_right == rhs.m_right; };
+    friend inline bool operator!=(const QTableWidgetSelectionRange &lhs,
+                                  const QTableWidgetSelectionRange &rhs)
+    { return !(lhs == rhs); }
+
     inline int topRow() const { return m_top; }
     inline int bottomRow() const { return m_bottom; }
     inline int leftColumn() const { return m_left; }