| 1 | // Copyright (C) 2021 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only |
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| 3 | |
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| 4 | // W A R N I N G |
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| 5 | // ------------- |
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| 6 | // |
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| 7 | // This file is not part of the Qt Chart API. It exists purely as an |
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| 8 | // implementation detail. This header file may change from version to |
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| 9 | // version without notice, or even be removed. |
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| 10 | // |
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| 11 | // We mean it. |
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| 12 | |
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| 13 | |
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| 14 | #ifndef LEGENDSCROLLER_P_H |
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| 15 | #define LEGENDSCROLLER_P_H |
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| 16 | |
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| 17 | #include <QtCharts/qlegend.h> |
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| 18 | #include <private/qlegend_p.h> |
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| 19 | #include <private/scroller_p.h> |
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| 20 | #include <QtCharts/private/qchartglobal_p.h> |
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| 21 | |
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| 22 | QT_BEGIN_NAMESPACE |
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| 23 | |
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| 24 | class Q_CHARTS_PRIVATE_EXPORT LegendScroller: public QLegend, public Scroller |
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| 25 | { |
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| 26 | Q_OBJECT |
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| 27 | |
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| 28 | public: |
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| 29 | LegendScroller(QChart *chart); |
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| 30 | |
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| 31 | void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget = nullptr) override; |
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| 32 | |
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| 33 | void setOffset(const QPointF &point) override; |
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| 34 | QPointF offset() const override; |
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| 35 | |
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| 36 | void mousePressEvent(QGraphicsSceneMouseEvent *event) override; |
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| 37 | void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override; |
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| 38 | void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override; |
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| 39 | void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) override; |
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| 40 | void hoverEnterEvent(QGraphicsSceneHoverEvent *event) override; |
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| 41 | void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override; |
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| 42 | void hoverLeaveEvent(QGraphicsSceneHoverEvent *event) override; |
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| 43 | |
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| 44 | private: |
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| 45 | void handleInteractiveChanged(bool interactive); |
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| 46 | void updateForResizerChange(); |
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| 47 | |
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| 48 | bool m_forwardMouseEvents{false}; |
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| 49 | bool m_forwardHoverEvents{false}; |
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| 50 | bool m_cachedShouldShowMoveEvents{false}; |
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| 51 | |
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| 52 | private slots: |
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| 53 | void handleDetached(bool attached); |
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| 54 | }; |
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| 55 | |
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| 56 | QT_END_NAMESPACE |
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| 57 | |
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| 58 | #endif |
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| 59 | |
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