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29
30#include <QtCharts/QXYLegendMarker>
31#include <private/qxylegendmarker_p.h>
32#include <private/qxyseries_p.h>
33#include <QtCharts/QXYSeries>
34#include <QtCharts/QScatterSeries>
35
36QT_CHARTS_BEGIN_NAMESPACE
37
38/*!
39 \class QXYLegendMarker
40 \inmodule QtCharts
41 \brief The QXYLegendMarker class is a legend marker for a line, spline, or scatter series.
42
43 An XY legend marker is related to QXYSeries derived classes: QLineSeries, QSplineSeries,
44 and QScatterSeries. Each marker is related to one series.
45
46 \sa QLegend, QXYSeries, QSplineSeries, QScatterSeries, QLineSeries
47*/
48
49/*!
50 \fn virtual LegendMarkerType QXYLegendMarker::type()
51 \reimp
52*/
53
54/*!
55 \internal
56*/
57QXYLegendMarker::QXYLegendMarker(QXYSeries *series, QLegend *legend, QObject *parent) :
58 QLegendMarker(*new QXYLegendMarkerPrivate(this,series,legend), parent)
59{
60 d_ptr->updated();
61}
62
63/*!
64 Removes the legend marker for a line, spline, or scatter series.
65*/
66QXYLegendMarker::~QXYLegendMarker()
67{
68}
69
70/*!
71 \internal
72*/
73QXYLegendMarker::QXYLegendMarker(QXYLegendMarkerPrivate &d, QObject *parent) :
74 QLegendMarker(d, parent)
75{
76}
77
78/*!
79 \reimp
80*/
81QXYSeries* QXYLegendMarker::series()
82{
83 Q_D(QXYLegendMarker);
84 return d->m_series;
85}
86
87////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
88
89QXYLegendMarkerPrivate::QXYLegendMarkerPrivate(QXYLegendMarker *q, QXYSeries *series, QLegend *legend) :
90 QLegendMarkerPrivate(q,legend),
91 q_ptr(q),
92 m_series(series)
93{
94 QObject::connect(sender: m_series, SIGNAL(nameChanged()), receiver: this, SLOT(updated()));
95 QObject::connect(sender: m_series->d_func(), SIGNAL(updated()), receiver: this, SLOT(updated()));
96}
97
98QXYLegendMarkerPrivate::~QXYLegendMarkerPrivate()
99{
100}
101
102QAbstractSeries* QXYLegendMarkerPrivate::series()
103{
104 return m_series;
105}
106
107QObject* QXYLegendMarkerPrivate::relatedObject()
108{
109 return m_series;
110}
111
112void QXYLegendMarkerPrivate::updated()
113{
114 bool labelChanged = false;
115 bool brushChanged = false;
116
117 if (!m_customLabel && (m_item->label() != m_series->name())) {
118 m_item->setLabel(m_series->name());
119 labelChanged = true;
120 }
121
122 if (m_series->type()== QAbstractSeries::SeriesTypeScatter) {
123 if (!m_customBrush && (m_item->brush() != m_series->brush())) {
124 m_item->setBrush(m_series->brush());
125 brushChanged = true;
126 }
127 if (m_item->effectiveMarkerShape() == QLegend::MarkerShapeFromSeries) {
128 QScatterSeries *scatter = static_cast<QScatterSeries *>(m_series);
129 if (scatter) {
130 const bool shapeChangeNeeded =
131 (scatter->markerShape() == QScatterSeries::MarkerShapeCircle
132 && m_item->itemType() != LegendMarkerItem::TypeCircle)
133 || (scatter->markerShape() == QScatterSeries::MarkerShapeRectangle
134 && m_item->itemType() != LegendMarkerItem::TypeRect);
135 if (shapeChangeNeeded || scatter->markerSize() != m_item->markerRect().width())
136 m_item->updateMarkerShapeAndSize();
137 }
138 }
139 } else {
140 QBrush emptyBrush;
141 if (!m_customBrush
142 && (m_item->brush() == emptyBrush
143 || m_item->brush().color() != m_series->pen().color())) {
144 m_item->setBrush(QBrush(m_series->pen().color()));
145 brushChanged = true;
146 }
147 }
148 m_item->setSeriesBrush(m_series->brush());
149 m_item->setSeriesPen(m_series->pen());
150
151 invalidateLegend();
152
153 if (labelChanged)
154 emit q_ptr->labelChanged();
155 if (brushChanged)
156 emit q_ptr->brushChanged();
157}
158
159QT_CHARTS_END_NAMESPACE
160
161#include "moc_qxylegendmarker.cpp"
162#include "moc_qxylegendmarker_p.cpp"
163

source code of qtcharts/src/charts/legend/qxylegendmarker.cpp