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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qbarseries.h"
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#include "qbarseries_p.h"
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#include "qbarset.h"
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#include "qbarset_p.h"
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#include "domain_p.h"
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#include "legendmarker_p.h"
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#include "chartdataset_p.h"
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#include "charttheme_p.h"
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#include "chartanimator_p.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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/*!
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\class QBarSeries
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\brief part of QtCommercial chart API.
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\mainclass
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QBarSeries represents a series of data shown as bars. The purpose of this class is to draw bars to
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the position defined by data. Single bar is defined by QPointF, where x value is the x-coordinate of the bar
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and y-value is the height of the bar. The category names are ignored with this series and x-axis
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shows the x-values.
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See the \l {BarChart Example} {bar chart example} to learn how to create a simple bar chart.
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\image examples_barchart.png
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\sa QBarSet, QStackedBarSeries, QPercentBarSeries
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*/
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/*!
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\property QBarSeries::barMargin
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\brief Defines the margin around bars.
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Value is from 0 to 1 and represents
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percentage of margin compared to bars
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*/
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/*!
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\property QBarSeries::count
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\brief Holds the number of sets in series.
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*/
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/*!
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\property QBarSeries::labelsVisible
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\brief Defines the visibility of the labels in series
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*/
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/*!
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\fn void QBarSeries::clicked(QBarSet *barset, int index)
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The signal is emitted if the user clicks with a mouse on top of QBarSet \a barset.
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Clicked bar inside set is indexed by \a index
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*/
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/*!
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\fn void QBarSeries::hovered(QBarSet* barset, bool status)
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The signal is emitted if mouse is hovered on top of series.
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Parameter \a barset is the pointer of barset, where hover happened.
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Parameter \a status is true, if mouse entered on top of series, false if mouse left from top of series.
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*/
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/*!
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\fn void QBarSeries::visibleChanged()
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*/
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/*!
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\fn void QBarSeries::labelsVisibleChanged()
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This signal is emitted when labels visibility have changed.
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\sa isLabelsVisible(), setLabelsVisible()
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*/
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/*!
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\fn void QBarSeries::barsetsAdded(QList<QBarSet*> sets)
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This signal is emitted when \a sets have been added to the series.
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\sa append(), insert()
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*/
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/*!
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\fn void QBarSeries::barsetsRemoved(QList<QBarSet*> sets)
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This signal is emitted when \a sets have been removed from the series.
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\sa remove()
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*/
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/*!
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Constructs empty QBarSeries.
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QBarSeries is QObject which is a child of a \a parent.
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*/
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QBarSeries::QBarSeries(QObject *parent) :
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QAbstractSeries(*new QBarSeriesPrivate(this),parent)
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{
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}
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/*!
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Destructs barseries and owned barsets.
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*/
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QBarSeries::~QBarSeries()
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{
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Q_D(QBarSeries);
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if(d->m_dataset){
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d->m_dataset->removeSeries(this);
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}
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}
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/*!
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\internal
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*/
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QBarSeries::QBarSeries(QBarSeriesPrivate &d, QObject *parent) :
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QAbstractSeries(d,parent)
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{
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}
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/*!
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Returns the type of series. Derived classes override this.
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*/
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QAbstractSeries::SeriesType QBarSeries::type() const
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{
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return QAbstractSeries::SeriesTypeBar;
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}
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/*!
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Sets the margin around bars. Parameter \a margin is from 0 to 1 and represents
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percentage of margin compared to bars
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*/
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void QBarSeries::setBarMargin(qreal margin)
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{
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Q_D(QBarSeries);
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d->setBarMargin(margin);
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}
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/*!
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Returns the margin around bars
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*/
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qreal QBarSeries::barMargin() const
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{
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Q_D(const QBarSeries);
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return d->barMargin();
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}
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/*!
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Adds a set of bars to series. Takes ownership of \a set. If the set is null or is already in series, it won't be appended.
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Returns true, if appending succeeded.
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*/
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bool QBarSeries::append(QBarSet *set)
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{
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Q_D(QBarSeries);
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bool success = d->append(set);
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if (success) {
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QList<QBarSet*> sets;
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sets.append(set);
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emit barsetsAdded(sets);
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}
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return success;
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}
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/*!
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Removes a set of bars from series. Releases ownership of \a set. Doesn't delete \a set.
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Returns true, if set was removed.
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*/
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bool QBarSeries::remove(QBarSet *set)
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{
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Q_D(QBarSeries);
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bool success = d->remove(set);
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if (success) {
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QList<QBarSet*> sets;
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sets.append(set);
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emit barsetsRemoved(sets);
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}
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return success;
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}
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/*!
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Adds a list of barsets to series. Takes ownership of \a sets.
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Returns true, if all sets were appended succesfully. If any of the sets is null or is already appended to series,
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nothing is appended and function returns false. If any of the sets is in list more than once, nothing is appended
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and function returns false.
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*/
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bool QBarSeries::append(QList<QBarSet* > sets)
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{
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Q_D(QBarSeries);
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bool success = d->append(sets);
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if (success) {
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emit barsetsAdded(sets);
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}
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return success;
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}
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/*!
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Removes a list of barsets from series. Releases ownership of \a sets. Doesn't delete \a sets.
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*/
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bool QBarSeries::remove(QList<QBarSet* > sets)
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{
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Q_D(QBarSeries);
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bool success = d->remove(sets);
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if (success) {
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emit barsetsRemoved(sets);
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}
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return success;
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}
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/*!
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Insert a set of bars to series at \a index postion. Takes ownership of \a set. If the set is null or is already in series, it won't be appended.
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Returns true, if inserting succeeded.
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*/
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bool QBarSeries::insert(int index, QBarSet *set)
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{
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Q_D(QBarSeries);
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bool success = d->insert(index, set);
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if (success) {
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QList<QBarSet*> sets;
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sets.append(set);
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emit barsetsAdded(sets);
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}
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return success;
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}
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/*!
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Removes all of the bar sets from the series
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*/
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void QBarSeries::clear()
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{
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Q_D(QBarSeries);
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QList<QBarSet *> sets = barSets();
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bool success = d->remove(sets);
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if (success) {
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emit barsetsRemoved(sets);
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}
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}
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/*!
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Returns number of sets in series.
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*/
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int QBarSeries::barsetCount() const
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{
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Q_D(const QBarSeries);
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return d->m_barSets.count();
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}
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/*!
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Returns a list of sets in series. Keeps ownership of sets.
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*/
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QList<QBarSet*> QBarSeries::barSets() const
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{
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Q_D(const QBarSeries);
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return d->m_barSets;
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}
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/*!
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Sets the visibility of labels in series to \a visible
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*/
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void QBarSeries::setLabelsVisible(bool visible)
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{
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Q_D(QBarSeries);
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if (d->m_labelsVisible != visible) {
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d->setLabelsVisible(visible);
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emit labelsVisibleChanged();
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}
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}
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/*!
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Returns the visibility of labels
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*/
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bool QBarSeries::isLabelsVisible() const
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{
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Q_D(const QBarSeries);
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return d->m_labelsVisible;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QBarSeriesPrivate::QBarSeriesPrivate(QBarSeries *q) :
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QAbstractSeriesPrivate(q),
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m_barMargin(0.5), // Default value is 50% of category width
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m_labelsVisible(false),
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m_visible(true)
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{
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}
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void QBarSeriesPrivate::setCategories(QStringList categories)
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{
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m_categories = categories;
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}
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void QBarSeriesPrivate::insertCategory(int index, const QString category)
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{
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m_categories.insert(index, category);
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emit categoriesUpdated();
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}
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void QBarSeriesPrivate::removeCategory(int index)
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{
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m_categories.removeAt(index);
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emit categoriesUpdated();
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}
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int QBarSeriesPrivate::categoryCount() const
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{
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if (m_categories.count() > 0) {
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return m_categories.count();
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}
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// No categories defined. return count of longest set.
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int count = 0;
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for (int i=0; i<m_barSets.count(); i++) {
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if (m_barSets.at(i)->count() > count) {
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count = m_barSets.at(i)->count();
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}
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}
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return count;
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}
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QStringList QBarSeriesPrivate::categories() const
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{
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if (m_categories.count() > 0) {
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return m_categories;
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}
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// No categories defined. retun list of indices.
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QStringList categories;
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int count = categoryCount();
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for (int i = 0; i < count; i++) {
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categories.append(QString::number(i));
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}
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return categories;
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}
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void QBarSeriesPrivate::setBarMargin(qreal margin)
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{
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if (margin > 1.0) {
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margin = 1.0;
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} else if (margin < 0.0) {
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margin = 0.0;
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}
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m_barMargin = margin;
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emit updatedBars();
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}
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qreal QBarSeriesPrivate::barMargin() const
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{
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return m_barMargin;
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}
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QBarSet* QBarSeriesPrivate::barsetAt(int index)
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{
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return m_barSets.at(index);
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}
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void QBarSeriesPrivate::setVisible(bool visible)
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{
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m_visible = visible;
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emit updatedBars();
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}
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void QBarSeriesPrivate::setLabelsVisible(bool visible)
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{
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m_labelsVisible = visible;
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emit labelsVisibleChanged(visible);
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}
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QString QBarSeriesPrivate::categoryName(int category)
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{
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if ((category >= 0) && (category < m_categories.count())) {
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return m_categories.at(category);
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}
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return QString::number(category);
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}
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qreal QBarSeriesPrivate::min()
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{
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if (m_barSets.count() <= 0) {
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return 0;
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}
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qreal min = INT_MAX;
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for (int i = 0; i < m_barSets.count(); i++) {
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int categoryCount = m_barSets.at(i)->count();
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for (int j = 0; j < categoryCount; j++) {
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qreal temp = m_barSets.at(i)->at(j).y();
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if (temp < min)
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min = temp;
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}
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}
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return min;
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}
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qreal QBarSeriesPrivate::max()
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{
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if (m_barSets.count() <= 0) {
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return 0;
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}
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qreal max = INT_MIN;
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for (int i = 0; i < m_barSets.count(); i++) {
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int categoryCount = m_barSets.at(i)->count();
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for (int j = 0; j < categoryCount; j++) {
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qreal temp = m_barSets.at(i)->at(j).y();
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if (temp > max)
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max = temp;
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}
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}
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return max;
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}
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qreal QBarSeriesPrivate::valueAt(int set, int category)
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{
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if ((set < 0) || (set >= m_barSets.count())) {
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// No set, no value.
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return 0;
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} else if ((category < 0) || (category >= m_barSets.at(set)->count())) {
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// No category, no value.
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return 0;
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}
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return m_barSets.at(set)->at(category).y();
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}
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qreal QBarSeriesPrivate::percentageAt(int set, int category)
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{
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if ((set < 0) || (set >= m_barSets.count())) {
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// No set, no value.
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return 0;
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} else if ((category < 0) || (category >= m_barSets.at(set)->count())) {
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// No category, no value.
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return 0;
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}
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qreal value = m_barSets.at(set)->at(category).y();
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qreal sum = categorySum(category);
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if ( qFuzzyIsNull(sum) ) {
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return 0;
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}
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return value / sum;
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}
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qreal QBarSeriesPrivate::categorySum(int category)
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{
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qreal sum(0);
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int count = m_barSets.count(); // Count sets
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for (int set = 0; set < count; set++) {
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if (category < m_barSets.at(set)->count())
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sum += m_barSets.at(set)->at(category).y();
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}
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return sum;
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}
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qreal QBarSeriesPrivate::absoluteCategorySum(int category)
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{
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qreal sum(0);
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int count = m_barSets.count(); // Count sets
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for (int set = 0; set < count; set++) {
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if (category < m_barSets.at(set)->count())
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sum += qAbs(m_barSets.at(set)->at(category).y());
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}
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return sum;
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}
|
|
|
|
|
|
qreal QBarSeriesPrivate::maxCategorySum()
|
|
|
{
|
|
|
qreal max = INT_MIN;
|
|
|
int count = categoryCount();
|
|
|
for (int i = 0; i < count; i++) {
|
|
|
qreal sum = categorySum(i);
|
|
|
if (sum > max)
|
|
|
max = sum;
|
|
|
}
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|
|
return max;
|
|
|
}
|
|
|
|
|
|
void QBarSeriesPrivate::scaleDomain(Domain& domain)
|
|
|
{
|
|
|
qreal minX(domain.minX());
|
|
|
qreal minY(domain.minY());
|
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|
qreal maxX(domain.maxX());
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|
qreal maxY(domain.maxY());
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|
|
int tickXCount(domain.tickXCount());
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|
|
int tickYCount(domain.tickYCount());
|
|
|
|
|
|
qreal x = categoryCount();
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|
|
qreal y = max();
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|
|
minX = qMin(minX, x) - 0.5;
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|
minY = qMin(minY, y);
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|
maxX = qMax(maxX, x) - 0.5;
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|
|
maxY = qMax(maxY, y);
|
|
|
tickXCount = x+1;
|
|
|
|
|
|
domain.setRange(minX,maxX,minY,maxY,tickXCount,tickYCount);
|
|
|
}
|
|
|
|
|
|
Chart* QBarSeriesPrivate::createGraphics(ChartPresenter* presenter)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
|
|
|
BarChartItem* bar = new BarChartItem(q,presenter);
|
|
|
if(presenter->animationOptions().testFlag(QChart::SeriesAnimations)) {
|
|
|
presenter->animator()->addAnimation(bar);
|
|
|
}
|
|
|
presenter->chartTheme()->decorate(q, presenter->dataSet()->seriesIndex(q));
|
|
|
return bar;
|
|
|
|
|
|
}
|
|
|
|
|
|
QList<LegendMarker*> QBarSeriesPrivate::createLegendMarker(QLegend* legend)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
QList<LegendMarker*> markers;
|
|
|
foreach(QBarSet* set, q->barSets()) {
|
|
|
BarLegendMarker* marker = new BarLegendMarker(q,set,legend);
|
|
|
markers << marker;
|
|
|
}
|
|
|
|
|
|
return markers;
|
|
|
}
|
|
|
|
|
|
bool QBarSeriesPrivate::append(QBarSet *set)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
if ((m_barSets.contains(set)) || (set == 0)) {
|
|
|
// Fail if set is already in list or set is null.
|
|
|
return false;
|
|
|
}
|
|
|
m_barSets.append(set);
|
|
|
QObject::connect(set->d_ptr.data(), SIGNAL(updatedBars()), this, SIGNAL(updatedBars()));
|
|
|
QObject::connect(set->d_ptr.data(), SIGNAL(restructuredBars()), this, SIGNAL(restructuredBars()));
|
|
|
if (m_dataset) {
|
|
|
m_dataset->updateSeries(q); // this notifies legend
|
|
|
}
|
|
|
emit restructuredBars(); // this notifies barchartitem
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool QBarSeriesPrivate::remove(QBarSet *set)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
if (!m_barSets.contains(set)) {
|
|
|
// Fail if set is not in list
|
|
|
return false;
|
|
|
}
|
|
|
m_barSets.removeOne(set);
|
|
|
QObject::disconnect(set->d_ptr.data(), SIGNAL(updatedBars()), this, SIGNAL(updatedBars()));
|
|
|
QObject::disconnect(set->d_ptr.data(), SIGNAL(restructuredBars()), this, SIGNAL(restructuredBars()));
|
|
|
if (m_dataset) {
|
|
|
m_dataset->updateSeries(q); // this notifies legend
|
|
|
}
|
|
|
emit restructuredBars(); // this notifies barchartitem
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool QBarSeriesPrivate::append(QList<QBarSet* > sets)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
foreach (QBarSet* set, sets) {
|
|
|
if ((set == 0) || (m_barSets.contains(set))) {
|
|
|
// Fail if any of the sets is null or is already appended.
|
|
|
return false;
|
|
|
}
|
|
|
if (sets.count(set) != 1) {
|
|
|
// Also fail if same set is more than once in given list.
|
|
|
return false;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
foreach (QBarSet* set, sets) {
|
|
|
m_barSets.append(set);
|
|
|
QObject::connect(set->d_ptr.data(), SIGNAL(updatedBars()), this, SIGNAL(updatedBars()));
|
|
|
QObject::connect(set->d_ptr.data(), SIGNAL(restructuredBars()), this, SIGNAL(restructuredBars()));
|
|
|
}
|
|
|
if (m_dataset) {
|
|
|
m_dataset->updateSeries(q); // this notifies legend
|
|
|
}
|
|
|
emit restructuredBars(); // this notifies barchartitem
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool QBarSeriesPrivate::remove(QList<QBarSet* > sets)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
foreach (QBarSet* set, sets) {
|
|
|
if ((set == 0) || (!m_barSets.contains(set))) {
|
|
|
// Fail if any of the sets is null or is not in series
|
|
|
return false;
|
|
|
}
|
|
|
if (sets.count(set) != 1) {
|
|
|
// Also fail if same set is more than once in given list.
|
|
|
return false;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
foreach (QBarSet* set, sets) {
|
|
|
m_barSets.removeOne(set);
|
|
|
QObject::disconnect(set->d_ptr.data(), SIGNAL(updatedBars()), this, SIGNAL(updatedBars()));
|
|
|
QObject::disconnect(set->d_ptr.data(), SIGNAL(restructuredBars()), this, SIGNAL(restructuredBars()));
|
|
|
}
|
|
|
|
|
|
if (m_dataset) {
|
|
|
m_dataset->updateSeries(q); // this notifies legend
|
|
|
}
|
|
|
emit restructuredBars(); // this notifies barchartitem
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool QBarSeriesPrivate::insert(int index, QBarSet *set)
|
|
|
{
|
|
|
Q_Q(QBarSeries);
|
|
|
if ((m_barSets.contains(set)) || (set == 0)) {
|
|
|
// Fail if set is already in list or set is null.
|
|
|
return false;
|
|
|
}
|
|
|
m_barSets.insert(index, set);
|
|
|
QObject::connect(set->d_ptr.data(), SIGNAL(updatedBars()), this, SIGNAL(updatedBars()));
|
|
|
QObject::connect(set->d_ptr.data(), SIGNAL(restructuredBars()), this, SIGNAL(restructuredBars()));
|
|
|
if (m_dataset) {
|
|
|
m_dataset->updateSeries(q); // this notifies legend
|
|
|
}
|
|
|
emit restructuredBars(); // this notifies barchartitem
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
#include "moc_qbarseries.cpp"
|
|
|
#include "moc_qbarseries_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
