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Fixed bar label visibility...
Fixed bar label visibility Label for bars with zero value is not shown. This is done to avoid overlapping labels. Change-Id: Ife30c04e8ae4d9ac9df1209967cc3cd3ecb76a4f Task-number: QTRD-3695 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

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r2782:5fbd172ba15f
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qhorizontalbarseries.cpp
123 lines | 3.7 KiB | text/x-c | CppLexer
/ src / charts / barchart / horizontal / bar / qhorizontalbarseries.cpp
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include <QtCharts/QHorizontalBarSeries>
#include <private/qhorizontalbarseries_p.h>
#include <private/horizontalbarchartitem_p.h>
#include <QtCharts/QBarCategoryAxis>
#include <private/chartdataset_p.h>
#include <private/charttheme_p.h>
QT_CHARTS_BEGIN_NAMESPACE
/*!
\class QHorizontalBarSeries
\inmodule Qt Charts
\brief Series for creating horizontal bar chart.
QHorizontalBarSeries 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. QHorizontalBarSeries groups the data
from sets to categories, which are defined by a QStringList.
See the \l {HorizontalBarChart Example} {horizontal bar chart example} to learn how to create a horizontal bar chart.
\image examples_horizontalbarchart.png
\sa QBarSet, QBarSeries, QPercentBarSeries, QAbstractBarSeries, QStackedBarSeries, QHorizontalStackedBarSeries, QHorizontalPercentBarSeries
*/
/*!
\qmltype HorizontalBarSeries
\instantiates QHorizontalBarSeries
\inqmlmodule QtCharts
\inherits AbstractBarSeries
\brief Series type for creating horizontal bar chart.
The following QML shows how to create a simple horizontal bar chart:
\snippet qmlchart/qml/qmlchart/View9.qml 1
\beginfloatleft
\image examples_qmlchart9.png
\endfloat
\clearfloat
*/
/*!
Constructs empty QHorizontalBarSeries.
QHorizontalBarSeries is QObject which is a child of a \a parent.
*/
QHorizontalBarSeries::QHorizontalBarSeries(QObject *parent)
: QAbstractBarSeries(*new QHorizontalBarSeriesPrivate(this), parent)
{
}
/*!
Destructor.
Removes series from chart.
*/
QHorizontalBarSeries::~QHorizontalBarSeries()
{
Q_D(QHorizontalBarSeries);
if (d->m_chart)
d->m_chart->removeSeries(this);
}
/*!
Returns QChartSeries::SeriesTypeHorizontalBar.
*/
QAbstractSeries::SeriesType QHorizontalBarSeries::type() const
{
return QAbstractSeries::SeriesTypeHorizontalBar;
}
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QHorizontalBarSeriesPrivate::QHorizontalBarSeriesPrivate(QHorizontalBarSeries *q)
: QAbstractBarSeriesPrivate(q)
{
}
void QHorizontalBarSeriesPrivate::initializeDomain()
{
qreal minX(domain()->minX());
qreal minY(domain()->minY());
qreal maxX(domain()->maxX());
qreal maxY(domain()->maxY());
qreal y = categoryCount();
minX = qMin(minX, min());
minY = qMin(minY, - (qreal)0.5);
maxX = qMax(maxX, max());
maxY = qMax(maxY, y - (qreal)0.5);
domain()->setRange(minX, maxX, minY, maxY);
}
void QHorizontalBarSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
{
Q_Q(QHorizontalBarSeries);
HorizontalBarChartItem *bar = new HorizontalBarChartItem(q,parent);
m_item.reset(bar);
QAbstractSeriesPrivate::initializeGraphics(parent);
}
#include "moc_qhorizontalbarseries.cpp"
QT_CHARTS_END_NAMESPACE