Convert tooltips example to snippets

The important bits from the example are ~10 lines of code, no need
for building a poor-man's version of a graphics or item view.

Pick-to: 6.6
Change-Id: I7874c66765c5b46230c92846ee3de1ee83f47e45
Reviewed-by: Oliver Eftevaag <oliver.eftevaag@qt.io>

1 files changed, 74 insertions, 0 deletions

diff --git a/src/widgets/doc/snippets/tooltips/main.cpp b/src/widgets/doc/snippets/tooltips/main.cpp
new file mode 100644
index 0000000000..94cc71f711
--- /dev/null
+++ b/src/widgets/doc/snippets/tooltips/main.cpp
@@ -0,0 +1,74 @@
+// Copyright (C) 2023 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtWidgets>
+
+using SearchBar = QWidget;
+using Element = QWidget;
+
+class Window : public QMainWindow
+{
+public:
+    Window(QWidget *parent = nullptr);
+
+protected:
+    bool event(QEvent *event) override;
+
+private:
+    Element *elementAt(QPoint pos) const {
+        return nullptr;
+    }
+
+    QToolBar *fileToolBar;
+    QMenu *fileMenu;
+
+    SearchBar *searchBar;
+};
+
+
+Window::Window(QWidget *parent)
+    : QMainWindow(parent)
+{
+//! [action_tooltip]
+    QAction *openAction = new QAction(tr("&Open..."));
+    openAction->setToolTip(tr("Open an existing file"));
+
+    fileMenu = menuBar()->addMenu(tr("&File"));
+    fileToolBar = addToolBar(tr("&File"));
+
+    fileMenu->addAction(openAction);
+    fileToolBar->addAction(openAction);
+//! [action_tooltip]
+
+//! [static_tooltip]
+    searchBar = new SearchBar;
+    searchBar->setToolTip(tr("Search in the current document"));
+//! [static_tooltip]
+
+    fileToolBar->addWidget(searchBar);
+}
+
+//! [dynamic_tooltip]
+bool Window::event(QEvent *event)
+{
+    if (event->type() == QEvent::ToolTip) {
+        QHelpEvent *helpEvent = static_cast<QHelpEvent *>(event);
+        if (Element *element = elementAt(helpEvent->pos())) {
+            QToolTip::showText(helpEvent->globalPos(), element->toolTip());
+        } else {
+            QToolTip::hideText();
+            event->ignore();
+        }
+
+        return true;
+    }
+    return QWidget::event(event);
+}
+//! [dynamic_tooltip]
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    Window w;
+    return 0;
+}