tst_qwindowcapturebackend_widget.h

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// Copyright (C) 2023 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

#ifndef WINDOW_CAPTURE_WIDGET_H

#define WINDOW_CAPTURE_WIDGET_H

#include <QtWidgets/qwidget.h>

#include <QtGui/qpainter.h>

#include <QtGui/qscreen.h>

#include <QtCore/quuid.h>

/*!

    Window capable of drawing test patterns used for capture tests

*/

class TestWidget : public QWidget

    Q_OBJECT

public:

    enum class Pattern {

        ColoredSquares,

        Grid,

/*

            Continuous animation that switches between ColoredSquares

            and Grid on every frame. The animation stops if the main

            thread is blocked.

*/

        Animated,

};

    TestWidget(const QString &uuid = QUuid::createUuid().toString(), QScreen *screen = nullptr);

    void setDisplayPattern(Pattern p);

    void setSize(QSize size);

    QImage grabImage();

protected:

    void paintEvent(QPaintEvent *) override;

    void changeEvent(QEvent *event) override;

private:

    void drawColoredSquares(QPainter &p) const;

    void drawGrid(QPainter &p) const;

    void drawAnimationFrame(QPainter &p) const;

    Pattern m_pattern = Pattern::ColoredSquares;

    bool m_animated = false;

    unsigned m_animationTick = 0;

};

bool showCaptureWindow(const QString &windowTitle);

#endif