Doc: Fix documentation warnings for Qt GUI

- Remove obsolete dependencies and references.
- Restore previously deleted snippet code referenced in
  richtext.qdoc.
- Add widgets snippets path to exampledirs; some  classes
  were moved from QtWidgets to QtGUI and related \snippet
  commands were broken.
- Mark internal functions under QNativeInterface::Private
  as \internal.

Task-number: QTBUG-86295
Change-Id: I9c165c860c7191dac65972d702698a1745bff77f
Reviewed-by: Paul Wicking <paul.wicking@qt.io>

1 files changed, 6 insertions, 0 deletions

diff --git a/src/gui/doc/snippets/textdocument-tables/mainwindow.h b/src/gui/doc/snippets/textdocument-tables/mainwindow.h
index b0ff5c1b91..37a7cc289d 100644
--- a/src/gui/doc/snippets/textdocument-tables/mainwindow.h
+++ b/src/gui/doc/snippets/textdocument-tables/mainwindow.h
@@ -53,6 +53,9 @@
 #include <QMainWindow>
 
 class QTextEdit;
+class QTextFrame;
+class QTextBlock;
+class QTextTable;
 
 class MainWindow : public QMainWindow
 {
@@ -67,6 +70,9 @@ public slots:
 
 private:
     bool writeXml(const QString &fileName);
+    void processFrame(QTextFrame *);
+    void processBlock(QTextBlock);
+    void processTable(QTextTable *table);
 
     QTextEdit *editor = nullptr;
 };