Provide overload for Qt::AlignmentFlags in item widget items

Amends 53ee4c8b1f7ae72e7005166e1c0dbc4659f2ab32, which deprecated
QListWidgetItem::setTextAlignment(int) etc and provided a typesafe
Qt::Alignment overload instead. However, Qt::AlignLeft by itself is of
type Qt::AlignmentFlag, it only becomes a Qt::Alignment when or'ed
with another alignment flag. So the deprecated int-overload was taken
by the compiler, resulting in a deprecation warning.

Add a Qt::AlignmentFlag overload in addition, and document it as
\internal since it is just a C++ technicality that we need both.

Pick-to: 6.4
Change-Id: Ide97eed7f6d1f89a5f955b2ed45167e771bd8c81
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@qt.io>

src/widgets/itemviews/qlistwidget.cpp

@@ -1086,6 +1086,11 @@ void QListWidgetItem::setFlags(Qt::ItemFlags aflags)
     Sets the list item's text alignment to \a alignment.
 */
 
+/*!
+    \fn void QListWidgetItem::setTextAlignment(Qt::AlignmentFlag alignment)
+    \internal
+*/
+
 /*!
     \fn void QListWidgetItem::setBackground(const QBrush &brush)
     \since 4.2

src/widgets/itemviews/qlistwidget.h

@@ -84,6 +84,8 @@ public:
     QT_DEPRECATED_VERSION_X_6_4("Use the overload taking Qt::Alignment")
     inline void setTextAlignment(int alignment)
         { setData(Qt::TextAlignmentRole, alignment); }
+    inline void setTextAlignment(Qt::AlignmentFlag alignment)
+        { setData(Qt::TextAlignmentRole, QVariant::fromValue(Qt::Alignment(alignment))); }
 #endif
     inline void setTextAlignment(Qt::Alignment alignment)
         { setData(Qt::TextAlignmentRole, QVariant::fromValue(alignment)); }

src/widgets/itemviews/qtablewidget.cpp

@@ -1293,6 +1293,11 @@ void QTableWidgetItem::setFlags(Qt::ItemFlags aflags)
     specified.
 */
 
+/*!
+  \fn void QTableWidgetItem::setTextAlignment(Qt::AlignmentFlag alignment)
+  \internal
+*/
+
 /*!
     Constructs a table item of the specified \a type that does not belong
     to any table.

src/widgets/itemviews/qtablewidget.h

@@ -108,6 +108,8 @@ public:
     QT_DEPRECATED_VERSION_X_6_4("Use the overload taking Qt::Alignment")
     inline void setTextAlignment(int alignment)
         { setData(Qt::TextAlignmentRole, alignment); }
+    inline void setTextAlignment(Qt::AlignmentFlag alignment)
+        { setData(Qt::TextAlignmentRole, QVariant::fromValue(Qt::Alignment(alignment))); }
 #endif
     inline void setTextAlignment(Qt::Alignment alignment)
         { setData(Qt::TextAlignmentRole, QVariant::fromValue(alignment)); }

src/widgets/itemviews/qtreewidget.cpp

@@ -1366,6 +1366,11 @@ bool QTreeWidgetItem::isFirstColumnSpanned() const
   the \a alignment specified.
 */
 
+/*!
+  \fn void QTreeWidgetItem::setTextAlignment(int column, Qt::AlignmentFlag alignment)
+  \internal
+*/
+
 /*!
     \fn int QTreeWidgetItem::indexOfChild(QTreeWidgetItem *child) const
 

src/widgets/itemviews/qtreewidget.h

@@ -104,6 +104,8 @@ public:
     QT_DEPRECATED_VERSION_X_6_4("Use the overload taking Qt::Alignment")
     inline void setTextAlignment(int column, int alignment)
         { setData(column, Qt::TextAlignmentRole, alignment); }
+    inline void setTextAlignment(int column, Qt::AlignmentFlag alignment)
+        { setData(column, Qt::TextAlignmentRole, QVariant::fromValue(Qt::Alignment(alignment))); }
 #endif
     inline void setTextAlignment(int column, Qt::Alignment alignment)
         { setData(column, Qt::TextAlignmentRole, QVariant::fromValue(alignment)); }