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2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Charts module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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28 | ****************************************************************************/ |
29 | |
30 | // W A R N I N G |
31 | // ------------- |
32 | // |
33 | // This file is not part of the Qt Chart API. It exists purely as an |
34 | // implementation detail. This header file may change from version to |
35 | // version without notice, or even be removed. |
36 | // |
37 | // We mean it. |
38 | |
39 | |
40 | #ifndef ABSTRACTBARCHARTITEM_H |
41 | #define ABSTRACTBARCHARTITEM_H |
42 | |
43 | #include <private/chartitem_p.h> |
44 | #include <QtCharts/QAbstractBarSeries> |
45 | #include <QtCharts/private/qchartglobal_p.h> |
46 | #include <QtGui/QPen> |
47 | #include <QtGui/QBrush> |
48 | |
49 | QT_CHARTS_BEGIN_NAMESPACE |
50 | |
51 | class Bar; |
52 | class QAxisCategories; |
53 | class QChart; |
54 | class BarAnimation; |
55 | class QBarSetPrivate; |
56 | class QAbstractAxis; |
57 | |
58 | class Q_CHARTS_PRIVATE_EXPORT AbstractBarChartItem : public ChartItem |
59 | { |
60 | Q_OBJECT |
61 | public: |
62 | AbstractBarChartItem(QAbstractBarSeries *series, QGraphicsItem* item = 0); |
63 | virtual ~AbstractBarChartItem(); |
64 | |
65 | public: |
66 | void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); |
67 | QRectF boundingRect() const; |
68 | |
69 | virtual QVector<QRectF> calculateLayout() = 0; |
70 | void initializeFullLayout(); |
71 | virtual void initializeLayout(int set, int category, int layoutIndex, bool resetAnimation) = 0; |
72 | virtual void applyLayout(const QVector<QRectF> &layout); |
73 | virtual void setAnimation(BarAnimation *animation); |
74 | virtual ChartAnimation *animation() const; |
75 | void setLayout(const QVector<QRectF> &layout); |
76 | QRectF geometry() const { return m_rect;} |
77 | void resetAnimation(); |
78 | |
79 | public Q_SLOTS: |
80 | void handleDomainUpdated(); |
81 | void handleLayoutChanged(); |
82 | void handleLabelsVisibleChanged(bool visible); |
83 | void handleDataStructureChanged(); // structure of of series has changed, recreate graphic items |
84 | void handleVisibleChanged(); |
85 | void handleOpacityChanged(); |
86 | void handleUpdatedBars(); |
87 | void handleLabelsPositionChanged(); |
88 | virtual void positionLabels(); |
89 | void handleBarValueChange(int index, QBarSet *barset); |
90 | void handleBarValueAdd(int index, int count, QBarSet *barset); |
91 | void handleBarValueRemove(int index, int count, QBarSet *barset); |
92 | void handleSeriesAdded(QAbstractSeries *series); |
93 | void handleSeriesRemoved(QAbstractSeries *series); |
94 | |
95 | protected: |
96 | void positionLabelsVertical(); |
97 | void createLabelItems(); |
98 | void handleSetStructureChange(); |
99 | virtual QString generateLabelText(int set, int category, qreal value); |
100 | void updateBarItems(); |
101 | virtual void markLabelsDirty(QBarSet *barset, int index, int count); |
102 | void calculateSeriesPositionAdjustmentAndWidth(); |
103 | |
104 | QRectF m_rect; |
105 | QVector<QRectF> m_layout; |
106 | |
107 | BarAnimation *m_animation; |
108 | |
109 | QAbstractBarSeries *m_series; // Not owned. |
110 | QMap<QBarSet *, QList<Bar *> > m_barMap; |
111 | QMap<QBarSet *, QHash<int, Bar *> > m_indexForBarMap; |
112 | int m_firstCategory; |
113 | int m_lastCategory; |
114 | int m_categoryCount; |
115 | QSizeF m_oldSize; |
116 | bool m_labelItemsMissing; |
117 | Qt::Orientation m_orientation; |
118 | bool m_resetAnimation; |
119 | qreal m_seriesPosAdjustment; |
120 | qreal m_seriesWidth; |
121 | }; |
122 | |
123 | QT_CHARTS_END_NAMESPACE |
124 | |
125 | #endif // ABSTRACTBARCHARTITEM_H |
126 | |