legendscroller_p.h

Enable keyboard shortcuts

// Copyright (C) 2021 The Qt Company Ltd.

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

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt Chart API.  It exists purely as an

// implementation detail.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

#ifndef LEGENDSCROLLER_P_H

#define LEGENDSCROLLER_P_H

#include <QtCharts/qlegend.h>

#include <private/qlegend_p.h>

#include <private/scroller_p.h>

#include <QtCharts/private/qchartglobal_p.h>

QT_BEGIN_NAMESPACE

class Q_CHARTS_EXPORT LegendScroller: public QLegend, public Scroller

    Q_OBJECT

public:

    LegendScroller(QChart *chart);

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override;

    void setOffset(const QPointF &point) override;

    QPointF offset() const override;

    void mousePressEvent(QGraphicsSceneMouseEvent *event) override;

    void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;

    void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;

    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override;

    void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override;

    void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;

    void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override;

private:

    void handleInteractiveChanged(bool interactive);

    void updateForResizerChange();

    bool m_forwardMouseEvents{false};

    bool m_forwardHoverEvents{false};

    bool m_cachedShouldShowMoveEvents{false};

private slots:

    void handleDetached(bool attached);

};

QT_END_NAMESPACE

#endif