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first init : ColorMapChart added to QtCharts
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qbarseries.cpp
133 lines | 3.9 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Charts module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtCharts/QBarSeries>
#include <private/qbarseries_p.h>
#include <private/barchartitem_p.h>
#include <private/chartdataset_p.h>
#include <private/charttheme_p.h>
#include <QtCharts/QValueAxis>
#include <QtCharts/QBarCategoryAxis>
QT_CHARTS_BEGIN_NAMESPACE
/*!
\class QBarSeries
\inmodule Qt Charts
\brief Series for creating bar chart.
QBarSeries represents a series of data shown as bars. The purpose of this class is to draw bars
as groups, where bars in same category are grouped next to each other. QBarSeries groups the data
from sets to categories, which are defined by a QStringList.
See the \l {BarChart Example} {bar chart example} to learn how to create a grouped bar chart.
\image examples_barchart.png
\sa QBarSet, QPercentBarSeries, QAbstractBarSeries, QStackedBarSeries
*/
/*!
\qmltype BarSeries
\instantiates QBarSeries
\inqmlmodule QtCharts
\inherits AbstractBarSeries
\brief Series for creating bar chart.
The following QML shows how to create a simple grouped bar chart:
\snippet qmlchart/qml/qmlchart/View6.qml 1
\beginfloatleft
\image examples_qmlchart6.png
\endfloat
\clearfloat
*/
/*!
Constructs empty QBarSeries.
QBarSeries is QObject which is a child of a \a parent.
*/
QBarSeries::QBarSeries(QObject *parent)
: QAbstractBarSeries(*new QBarSeriesPrivate(this), parent)
{
}
/*!
Returns QAbstractSeries::SeriesTypeBar.
*/
QAbstractSeries::SeriesType QBarSeries::type() const
{
return QAbstractSeries::SeriesTypeBar;
}
/*!
Destructor. Removes series from chart.
*/
QBarSeries::~QBarSeries()
{
Q_D(QBarSeries);
if (d->m_chart)
d->m_chart->removeSeries(this);
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QBarSeriesPrivate::QBarSeriesPrivate(QBarSeries *q) : QAbstractBarSeriesPrivate(q)
{
}
void QBarSeriesPrivate::initializeDomain()
{
qreal minX(domain()->minX());
qreal minY(domain()->minY());
qreal maxX(domain()->maxX());
qreal maxY(domain()->maxY());
qreal x = categoryCount();
minX = qMin(minX, - (qreal)0.5);
minY = qMin(minY, min());
maxX = qMax(maxX, x - (qreal)0.5);
maxY = qMax(maxY, max());
domain()->setRange(minX, maxX, minY, maxY);
}
void QBarSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
{
Q_Q(QBarSeries);
BarChartItem *bar = new BarChartItem(q,parent);
m_item.reset(bar);
QAbstractSeriesPrivate::initializeGraphics(parent);
}
#include "moc_qbarseries.cpp"
QT_CHARTS_END_NAMESPACE