qt 6.5.1 original

tests/manual/examples/opengl/paintedwindow/paintedwindow.h

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+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef PAINTEDWINDOW_H
+#define PAINTEDWINDOW_H
+
+#include <QWindow>
+
+#include <QtGui/qopengl.h>
+#include <QtOpenGL/qopenglshaderprogram.h>
+#include <QtOpenGL/qopenglframebufferobject.h>
+
+#include <QPropertyAnimation>
+
+#include <QColor>
+#include <QImage>
+#include <QTime>
+
+QT_BEGIN_NAMESPACE
+class QOpenGLContext;
+QT_END_NAMESPACE
+
+class PaintedWindow : public QWindow
+{
+    Q_OBJECT
+    Q_PROPERTY(qreal rotation READ rotation WRITE setRotation NOTIFY rotationChanged)
+
+public:
+    PaintedWindow();
+
+    qreal rotation() const { return m_rotation; }
+
+signals:
+    void rotationChanged(qreal rotation);
+
+private slots:
+    void paint();
+    void setRotation(qreal r);
+    void orientationChanged(Qt::ScreenOrientation newOrientation);
+    void rotationDone();
+
+private:
+    void exposeEvent(QExposeEvent *) override;
+    void mousePressEvent(QMouseEvent *) override;
+
+    void paint(QPainter *painter, const QRect &rect);
+
+    QOpenGLContext *m_context;
+    qreal m_rotation;
+
+    QImage m_prevImage;
+    QImage m_nextImage;
+    qreal m_deltaRotation;
+
+    Qt::ScreenOrientation m_targetOrientation;
+    Qt::ScreenOrientation m_nextTargetOrientation;
+
+    QPropertyAnimation *m_animation;
+    QTimer *m_paintTimer;
+};
+
+#endif // PAINTEDWINDOW_H