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3** Copyright (C) 2016 The Qt Company Ltd.
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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#ifndef QBARMODELMAPPER_P_H
40#define QBARMODELMAPPER_P_H
41
42#include <QtCore/QObject>
43#include <QtCharts/QBarModelMapper>
44#include <QtCharts/private/qchartglobal_p.h>
45
46QT_BEGIN_NAMESPACE
47class QModelIndex;
48QT_END_NAMESPACE
49
50QT_CHARTS_BEGIN_NAMESPACE
51
52class QBarSet;
53
54class Q_CHARTS_PRIVATE_EXPORT QBarModelMapperPrivate : public QObject
55{
56 Q_OBJECT
57public:
58 explicit QBarModelMapperPrivate(QBarModelMapper *q);
59
60public Q_SLOTS:
61 // for the model
62 void modelUpdated(QModelIndex topLeft, QModelIndex bottomRight);
63 void modelHeaderDataUpdated(Qt::Orientation orientation, int first, int last);
64 void modelRowsAdded(QModelIndex parent, int start, int end);
65 void modelRowsRemoved(QModelIndex parent, int start, int end);
66 void modelColumnsAdded(QModelIndex parent, int start, int end);
67 void modelColumnsRemoved(QModelIndex parent, int start, int end);
68 void handleModelDestroyed();
69
70 // for the series
71 void barSetsAdded(QList<QBarSet *> sets);
72 void barSetsRemoved(QList<QBarSet *> sets);
73 void valuesAdded(int index, int count);
74 void valuesRemoved(int index, int count);
75 void barLabelChanged();
76 void barValueChanged(int index);
77 void handleSeriesDestroyed();
78
79 void initializeBarFromModel();
80
81private:
82 QBarSet *barSet(QModelIndex index);
83 QModelIndex barModelIndex(int barSection, int posInBar);
84 void insertData(int start, int end);
85 void removeData(int start, int end);
86 void blockModelSignals(bool block = true);
87 void blockSeriesSignals(bool block = true);
88
89private:
90 QAbstractBarSeries *m_series;
91 QList<QBarSet *> m_barSets;
92 QAbstractItemModel *m_model;
93 int m_first;
94 int m_count;
95 Qt::Orientation m_orientation;
96 int m_firstBarSetSection;
97 int m_lastBarSetSection;
98 bool m_seriesSignalsBlock;
99 bool m_modelSignalsBlock;
100
101private:
102 QBarModelMapper *q_ptr;
103 Q_DECLARE_PUBLIC(QBarModelMapper)
104};
105
106QT_CHARTS_END_NAMESPACE
107
108#endif // QBARMODELMAPPER_P_H
109

source code of qtcharts/src/charts/barchart/qbarmodelmapper_p.h