qt 6.5.1 original

tests/manual/qcursor/childwidget/CMakeLists.txt

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+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+#####################################################################
+## tst_manual_childwidget Binary:
+#####################################################################
+
+qt_internal_add_manual_test(tst_manual_childwidget
+    GUI
+    SOURCES
+        main.cpp
+    INCLUDE_DIRECTORIES
+        .
+    LIBRARIES
+        Qt::Gui
+        Qt::Widgets
+)

tests/manual/qcursor/childwidget/childwidget.pro

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+TEMPLATE = app
+TARGET = tst_manual_childwidget
+INCLUDEPATH += .
+QT += widgets
+
+SOURCES += main.cpp

tests/manual/qcursor/childwidget/main.cpp

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+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+#include <QtWidgets>
+
+class CursorWidget : public QWidget
+{
+public:
+    CursorWidget(QCursor cursor, QColor color)
+    :m_cursor(cursor)
+    ,m_color(color)
+    {
+        if (cursor.shape() == Qt::ArrowCursor)
+            unsetCursor();
+        else
+            setCursor(cursor);
+    }
+
+    void paintEvent(QPaintEvent *e)
+    {
+        QPainter p(this);
+        p.fillRect(e->rect(), m_color);
+    }
+
+    void mousePressEvent(QMouseEvent *)
+    {
+        // Toggle cursor
+        QCursor newCursor = (cursor().shape() == m_cursor.shape()) ? QCursor() : m_cursor;
+        if (newCursor.shape() == Qt::ArrowCursor)
+            unsetCursor();
+        else
+            setCursor(newCursor);
+    }
+
+private:
+    QCursor m_cursor;
+    QColor m_color;
+};
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+
+    // Test child widgets (one of which is native) with set cursors.
+    // Click window to toggle cursor.
+
+    CursorWidget w1((QCursor(Qt::SizeVerCursor)), QColor(Qt::blue).darker());
+    w1.resize(200, 200);
+    w1.show();
+
+    CursorWidget w2((QCursor(Qt::OpenHandCursor)), QColor(Qt::red).darker());
+    w2.setParent(&w1);
+    w2.setGeometry(0, 0, 100, 100);
+    w2.show();
+
+    CursorWidget w3((QCursor(Qt::IBeamCursor)), QColor(Qt::green).darker());
+    w3.winId();
+    w3.setParent(&w1);
+    w3.setGeometry(100, 100, 100, 100);
+    w3.show();
+
+    return app.exec();
+}