| 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 | #ifndef QLEGEND_P_H |
| 14 | #define QLEGEND_P_H |
| 15 | |
| 16 | #include <QtCharts/QLegend> |
| 17 | #include <QtCharts/private/qchartglobal_p.h> |
| 18 | #include <QtCore/qlist.h> |
| 19 | #include <QtCore/qhash.h> |
| 20 | |
| 21 | QT_BEGIN_NAMESPACE |
| 22 | |
| 23 | class QChart; |
| 24 | class ChartPresenter; |
| 25 | class QAbstractSeries; |
| 26 | class LegendLayout; |
| 27 | class LegendMoveResizeHandler; |
| 28 | class QLegendMarker; |
| 29 | |
| 30 | class Q_CHARTS_EXPORT QLegendPrivate : public QObject |
| 31 | { |
| 32 | Q_OBJECT |
| 33 | public: |
| 34 | QLegendPrivate(ChartPresenter *presenter, QChart *chart, QLegend *q); |
| 35 | ~QLegendPrivate(); |
| 36 | |
| 37 | void setOffset(const QPointF &offset); |
| 38 | QPointF offset() const; |
| 39 | int roundness(qreal size); |
| 40 | |
| 41 | QGraphicsItemGroup* items() { return m_items; } |
| 42 | |
| 43 | QList<QLegendMarker*> markers(QAbstractSeries *series = 0); |
| 44 | qreal maxMarkerWidth() const; |
| 45 | |
| 46 | static QObject *relatedObject(const QLegendMarker *l); |
| 47 | |
| 48 | public Q_SLOTS: |
| 49 | void handleSeriesAdded(QAbstractSeries *series); |
| 50 | void handleSeriesRemoved(QAbstractSeries *series); |
| 51 | void handleSeriesVisibleChanged(); |
| 52 | void handleCountChanged(); |
| 53 | |
| 54 | private: |
| 55 | // Internal helpers |
| 56 | void insertMarkerHelper(QLegendMarker *marker); |
| 57 | void addMarkers(const QList<QLegendMarker *> &markers); |
| 58 | void removeMarkerHelper(QLegendMarker *marker); |
| 59 | void removeMarkers(const QList<QLegendMarker *> &markers); |
| 60 | void decorateMarker(QLegendMarker *marker); |
| 61 | void decorateMarkers(const QList<QLegendMarker *> &markers); |
| 62 | void updateToolTips(); |
| 63 | |
| 64 | private: |
| 65 | QLegend *q_ptr; |
| 66 | ChartPresenter *m_presenter; |
| 67 | LegendLayout *m_layout; |
| 68 | LegendMoveResizeHandler *m_resizer; |
| 69 | QChart *m_chart; |
| 70 | QGraphicsItemGroup *m_items; |
| 71 | Qt::Alignment m_alignment; |
| 72 | QBrush m_brush; |
| 73 | QPen m_pen; |
| 74 | QFont m_font; |
| 75 | QBrush m_labelBrush; |
| 76 | |
| 77 | qreal m_diameter; |
| 78 | bool m_attachedToChart; |
| 79 | bool m_backgroundVisible; |
| 80 | bool m_reverseMarkers; |
| 81 | bool m_showToolTips; |
| 82 | bool m_interactive; |
| 83 | QLegend::MarkerShape m_markerShape; |
| 84 | |
| 85 | QList<QLegendMarker *> m_markers; |
| 86 | QList<QAbstractSeries *> m_series; |
| 87 | |
| 88 | QHash<QGraphicsItem *, QLegendMarker *> m_markerHash; |
| 89 | |
| 90 | friend class QLegend; |
| 91 | friend class LegendMarkerItem; |
| 92 | friend class LegendLayout; |
| 93 | friend class QLegendMarkerPrivate; |
| 94 | friend class LegendScroller; |
| 95 | friend class LegendMoveResizeHandler; |
| 96 | }; |
| 97 | |
| 98 | QT_END_NAMESPACE |
| 99 | |
| 100 | #endif |
| 101 |