1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#include <QtCharts/QPercentBarSeries>
5#include <private/qpercentbarseries_p.h>
6#include <private/percentbarchartitem_p.h>
7#include <private/chartdataset_p.h>
8#include <private/charttheme_p.h>
9#include <QtCharts/QValueAxis>
10
11QT_BEGIN_NAMESPACE
12
13/*!
14 \class QPercentBarSeries
15 \inmodule QtCharts
16 \brief The QPercentBarSeries class presents a series of categorized data as
17 a percentage of each category.
18
19 This class draws data as a series of uniformly sized vertically stacked bars, with one
20 bar per category. Each bar set added to the series contributes a single segment to each
21 stacked bar. The segment size corresponds to the percentage of the segment value compared
22 with the total value of all segments in the stack.
23 Bars with zero value are not drawn.
24
25 See the \l {Charts with Widgets Gallery} to learn how to create a
26 percent bar chart.
27 \image examples_percentbarchart.png
28
29 \sa QBarSet, QStackedBarSeries, QAbstractBarSeries
30*/
31/*!
32 \qmltype PercentBarSeries
33 \nativetype QPercentBarSeries
34 \inqmlmodule QtCharts
35
36 \inherits AbstractBarSeries
37
38 \brief Presents a series of categorized data as a percentage of each category.
39
40 The data is drawn as a series of uniformly sized vertically stacked bars, with one
41 bar per category. Each bar set added to the series contributes a single segment to each
42 stacked bar. The segment size corresponds to the percentage of the segment value compared
43 with the total value of all segments in the stack.
44 Bars with zero value are not drawn.
45
46 The following QML code snippet shows how to create a simple percent bar chart:
47 \snippet qmlchartsgallery/qml/BarSeriesPercent.qml 1
48 \beginfloatleft
49 \image examples_qmlchart8.png
50 \endfloat
51 \clearfloat
52*/
53
54/*!
55 Constructs an empty vertical percent bar series that is a QObject and a child of \a parent.
56*/
57QPercentBarSeries::QPercentBarSeries(QObject *parent)
58 : QAbstractBarSeries(*new QPercentBarSeriesPrivate(this), parent)
59{
60}
61
62/*!
63 Removes the bar series from the chart.
64*/
65QPercentBarSeries::~QPercentBarSeries()
66{
67 Q_D(QPercentBarSeries);
68 if (d->m_chart)
69 d->m_chart->removeSeries(series: this);
70}
71
72/*!
73 Returns the vertical percent bar series.
74*/
75QAbstractSeries::SeriesType QPercentBarSeries::type() const
76{
77 return QAbstractSeries::SeriesTypePercentBar;
78}
79
80///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
81
82QPercentBarSeriesPrivate::QPercentBarSeriesPrivate(QPercentBarSeries *q) : QAbstractBarSeriesPrivate(q)
83{
84
85}
86
87void QPercentBarSeriesPrivate::initializeDomain()
88{
89 qreal minX(domain()->minX());
90 qreal minY(domain()->minY());
91 qreal maxX(domain()->maxX());
92 qreal maxY(domain()->maxY());
93
94 qreal x = categoryCount();
95 minX = qMin(a: minX, b: - (qreal)0.5);
96 maxX = qMax(a: maxX, b: x - (qreal)0.5);
97 minY = 0;
98 maxY = 100;
99
100 domain()->setRange(minX, maxX, minY, maxY);
101}
102
103
104void QPercentBarSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
105{
106 Q_Q(QPercentBarSeries);
107 PercentBarChartItem *bar = new PercentBarChartItem(q,parent);
108 m_item.reset(p: bar);
109 QAbstractSeriesPrivate::initializeGraphics(parent);
110}
111
112QT_END_NAMESPACE
113
114#include "moc_qpercentbarseries.cpp"
115

source code of qtcharts/src/charts/barchart/vertical/percent/qpercentbarseries.cpp