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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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#include <QAbstractItemModel>
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#include <QModelIndex>
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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. One QBarSeries can contain multiple
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QBarSet data sets. QBarSeries groups the data from sets to categories, which are defined
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by QStringList.
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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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\fn void QBarSeries::clicked(QBarSet *barset, QString category)
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The signal is emitted if the user clicks with a mouse on top of QBarSet \a barset of category \a category
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contained by the series.
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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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Constructs empty QBarSeries. Parameter \a categories defines the categories for chart.
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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(QBarCategories categories, QObject *parent) :
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QAbstractSeries(*new QBarSeriesPrivate(categories, 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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// NOTE: d_ptr destroyed by QObject
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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::QSeriesType 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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Adds a set of bars to series. Takes ownership of \a set.
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*/
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void QBarSeries::appendBarSet(QBarSet *set)
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{
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Q_D(QBarSeries);
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d->m_barSets.append(set);
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QObject::connect(set->d_ptr.data(), SIGNAL(updatedBars()), d, SLOT(barsetChanged()));
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emit d->restructuredBars();
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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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*/
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void QBarSeries::removeBarSet(QBarSet *set)
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{
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Q_D(QBarSeries);
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if (d->m_barSets.contains(set)) {
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d->m_barSets.removeOne(set);
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QObject::disconnect(set, SIGNAL(updatedBars()), this, SLOT(barsetChanged()));
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emit d->restructuredBars();
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}
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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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*/
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void QBarSeries::appendBarSets(QList<QBarSet* > sets)
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{
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Q_D(QBarSeries);
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foreach (QBarSet* set, sets) {
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d->m_barSets.append(set);
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QObject::connect(set, SIGNAL(updatedBars()), this, SLOT(barsetChanged()));
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}
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emit d->restructuredBars();
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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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void QBarSeries::removeBarSets(QList<QBarSet* > sets)
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{
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Q_D(QBarSeries);
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foreach (QBarSet* set, sets) {
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if (d->m_barSets.contains(set)) {
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d->m_barSets.removeOne(set);
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QObject::disconnect(set, SIGNAL(updatedBars()), this, SLOT(barsetChanged()));
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}
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}
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emit d->restructuredBars();
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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 number of categories in series
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*/
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int QBarSeries::categoryCount() const
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{
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Q_D(const QBarSeries);
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return d->m_categories.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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\fn bool QBarSeries::setModel(QAbstractItemModel *model)
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Sets the \a model to be used as a data source
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*/
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bool QBarSeries::setModel(QAbstractItemModel *model)
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{
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Q_D(QBarSeries);
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return d->setModel(model);
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}
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/*!
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\fn bool QBarSeries::setModelMapping(int categories, int bottomBoundry, int topBoundry, Qt::Orientation orientation)
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Sets column/row specified by \a categories to be used as a list of bar series categories.
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Parameter \a bottomBoundry indicates the column/row where the first bar set is located in the model.
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Parameter \a topBoundry indicates the column/row where the last bar set is located in the model.
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All the columns/rows inbetween those two values are also used as data for bar sets.
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The \a orientation parameter specifies whether the data is in columns or in rows.
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*/
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void QBarSeries::setModelMapping(int categories, int bottomBoundary, int topBoundary, Qt::Orientation orientation)
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{
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Q_D(QBarSeries);
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d->setModelMapping(categories,bottomBoundary,topBoundary,orientation);
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}
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/*!
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Returns the bar categories of the series.
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*/
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QBarCategories QBarSeries::categories() const
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{
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Q_D(const QBarSeries);
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return d->m_categories;
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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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foreach (QBarSet* s, barSets()) {
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s->setLabelsVisible(visible);
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}
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QBarSeriesPrivate::QBarSeriesPrivate(QBarCategories categories, QBarSeries *q) :
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QAbstractSeriesPrivate(q),
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m_categories(categories),
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m_mapCategories(-1),
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m_mapBarBottom(-1),
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m_mapBarTop(-1),
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m_mapOrientation(Qt::Vertical)
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{
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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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QString QBarSeriesPrivate::categoryName(int category)
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{
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return m_categories.at(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);
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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);
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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);
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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);
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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);
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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));
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}
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return sum;
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}
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qreal QBarSeriesPrivate::maxCategorySum()
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{
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qreal max = INT_MIN;
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int count = m_categories.count();
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for (int i = 0; i < count; i++) {
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qreal sum = categorySum(i);
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if (sum > max)
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max = sum;
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}
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return max;
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}
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bool QBarSeriesPrivate::setModel(QAbstractItemModel *model)
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{
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// disconnect signals from old model
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if(m_model)
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{
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disconnect(m_model, 0, this, 0);
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m_mapCategories = -1;
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m_mapBarBottom = -1;
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m_mapBarTop = -1;
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m_mapOrientation = Qt::Vertical;
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}
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// set new model
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if(model)
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{
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m_model = model;
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return true;
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}
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else
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{
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m_model = 0;
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return false;
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}
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}
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void QBarSeriesPrivate::setModelMapping(int categories, int bottomBoundry, int topBoundry, Qt::Orientation orientation)
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{
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Q_Q(QBarSeries);
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if (m_model == 0)
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return;
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m_mapCategories = categories;
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m_mapBarBottom = bottomBoundry;
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m_mapBarTop = topBoundry;
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m_mapOrientation = orientation;
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// connect the signals
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connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)),
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this, SLOT(modelUpdated(QModelIndex,QModelIndex)));
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// create the initial bars
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m_categories.clear();
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if (m_mapOrientation == Qt::Vertical) {
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for (int k = 0; k < m_model->rowCount(); k++) {
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m_categories << m_model->data(m_model->index(k, m_mapCategories), Qt::DisplayRole).toString();
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}
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for (int i = m_mapBarBottom; i <= m_mapBarTop; i++) {
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QBarSet* barSet = new QBarSet(m_model->headerData(i, Qt::Horizontal, Qt::DisplayRole).toString());
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for(int m = 0; m < m_model->rowCount(); m++)
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*barSet << m_model->data(m_model->index(m, i), Qt::DisplayRole).toDouble();
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q->appendBarSet(barSet);
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}
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} else {
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for (int k = 0; k < m_model->columnCount(); k++) {
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m_categories << m_model->data(m_model->index(m_mapCategories, k), Qt::DisplayRole).toString();
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}
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for (int i = m_mapBarBottom; i <= m_mapBarTop; i++) {
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QBarSet* barSet = new QBarSet(m_model->headerData(i, Qt::Vertical, Qt::DisplayRole).toString());
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for(int m = 0; m < m_model->columnCount(); m++)
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*barSet << m_model->data(m_model->index(i, m), Qt::DisplayRole).toDouble();
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q->appendBarSet(barSet);
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}
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}
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}
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void QBarSeriesPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
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{
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Q_UNUSED(bottomRight)
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if (m_mapOrientation == Qt::Vertical)
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{
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// model update is relevant to BarSeries if the change was made to the part of the model that was mapped to BarSeries
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if (topLeft.column() >= m_mapBarBottom && topLeft.column() <= m_mapBarTop)
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barsetAt(topLeft.column() - m_mapBarBottom)->replace(topLeft.row(), m_model->data(topLeft, Qt::DisplayRole).toDouble());
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}
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else
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{
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// model update is relevant to BarSeries if the change was made to the part of the model that was mapped to BarSeries
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if (topLeft.row() >= m_mapBarBottom && topLeft.row() <= m_mapBarTop)
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barsetAt(topLeft.row() - m_mapBarBottom)->replace(topLeft.column(), m_model->data(topLeft, Qt::DisplayRole).toDouble());
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}
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}
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void QBarSeriesPrivate::barsetChanged()
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{
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emit updatedBars();
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}
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void QBarSeriesPrivate::scaleDomain(Domain& domain)
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{
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qreal minX(domain.minX());
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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());
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qreal x = m_categories.count();
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qreal y = max();
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minX = qMin(minX, x);
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minY = qMin(minY, y);
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maxX = qMax(maxX, x);
|
|
|
maxY = qMax(maxY, y);
|
|
|
tickXCount = x+1;
|
|
|
|
|
|
domain.setRangeX(minX,maxX,tickXCount);
|
|
|
domain.setRangeY(minY,maxY,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;
|
|
|
}
|
|
|
|
|
|
#include "moc_qbarseries.cpp"
|
|
|
#include "moc_qbarseries_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
