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