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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the 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 The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCharts/QBarModelMapper>
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#include <private/qbarmodelmapper_p.h>
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#include <QtCharts/QAbstractBarSeries>
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#include <QtCharts/QBarSet>
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#include <QtCharts/QChart>
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#include <QtCore/QAbstractItemModel>
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QT_CHARTS_BEGIN_NAMESPACE
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QBarModelMapper::QBarModelMapper(QObject *parent) :
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QObject(parent),
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d_ptr(new QBarModelMapperPrivate(this))
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{
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}
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QAbstractItemModel *QBarModelMapper::model() const
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{
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Q_D(const QBarModelMapper);
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return d->m_model;
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}
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void QBarModelMapper::setModel(QAbstractItemModel *model)
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{
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if (model == 0)
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return;
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Q_D(QBarModelMapper);
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if (d->m_model)
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disconnect(d->m_model, 0, d, 0);
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d->m_model = model;
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d->initializeBarFromModel();
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// connect signals from the model
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connect(d->m_model, SIGNAL(dataChanged(QModelIndex,QModelIndex)), d, SLOT(modelUpdated(QModelIndex,QModelIndex)));
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connect(d->m_model, SIGNAL(headerDataChanged(Qt::Orientation,int,int)), d, SLOT(modelHeaderDataUpdated(Qt::Orientation,int,int)));
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connect(d->m_model, SIGNAL(rowsInserted(QModelIndex,int,int)), d, SLOT(modelRowsAdded(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(rowsRemoved(QModelIndex,int,int)), d, SLOT(modelRowsRemoved(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(columnsInserted(QModelIndex,int,int)), d, SLOT(modelColumnsAdded(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(columnsRemoved(QModelIndex,int,int)), d, SLOT(modelColumnsRemoved(QModelIndex,int,int)));
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connect(d->m_model, SIGNAL(destroyed()), d, SLOT(handleModelDestroyed()));
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}
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QAbstractBarSeries *QBarModelMapper::series() const
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{
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Q_D(const QBarModelMapper);
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return d->m_series;
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}
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void QBarModelMapper::setSeries(QAbstractBarSeries *series)
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{
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Q_D(QBarModelMapper);
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if (d->m_series)
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disconnect(d->m_series, 0, d, 0);
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if (series == 0)
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return;
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d->m_series = series;
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d->initializeBarFromModel();
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// connect the signals from the series
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connect(d->m_series, SIGNAL(barsetsAdded(QList<QBarSet*>)), d, SLOT(barSetsAdded(QList<QBarSet*>)));
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connect(d->m_series, SIGNAL(barsetsRemoved(QList<QBarSet*>)), d, SLOT(barSetsRemoved(QList<QBarSet*>)));
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connect(d->m_series, SIGNAL(destroyed()), d, SLOT(handleSeriesDestroyed()));
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}
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/*!
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Returns which row/column of the model contains the first values of the QBarSets in the series.
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The default value is 0.
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*/
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int QBarModelMapper::first() const
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{
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Q_D(const QBarModelMapper);
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return d->m_first;
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}
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/*!
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Sets which row of the model contains the \a first values of the QBarSets in the series.
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The default value is 0.
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*/
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void QBarModelMapper::setFirst(int first)
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{
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Q_D(QBarModelMapper);
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d->m_first = qMax(first, 0);
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d->initializeBarFromModel();
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}
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/*!
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Returns the number of rows/columns of the model that are mapped as the data for QAbstractBarSeries
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Minimal and default value is: -1 (count limited by the number of rows/columns in the model)
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*/
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int QBarModelMapper::count() const
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{
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Q_D(const QBarModelMapper);
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return d->m_count;
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}
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/*!
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Sets the \a count of rows/columns of the model that are mapped as the data for QAbstractBarSeries
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Minimal and default value is: -1 (count limited by the number of rows/columns in the model)
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*/
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void QBarModelMapper::setCount(int count)
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{
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Q_D(QBarModelMapper);
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d->m_count = qMax(count, -1);
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d->initializeBarFromModel();
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}
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/*!
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Returns the orientation that is used when QBarModelMapper accesses the model.
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This mean whether the consecutive values of the bar set are read from row (Qt::Horizontal)
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or from columns (Qt::Vertical)
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*/
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Qt::Orientation QBarModelMapper::orientation() const
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{
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Q_D(const QBarModelMapper);
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return d->m_orientation;
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}
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/*!
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Returns the \a orientation that is used when QBarModelMapper accesses the model.
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This mean whether the consecutive values of the pie are read from row (Qt::Horizontal)
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or from columns (Qt::Vertical)
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*/
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void QBarModelMapper::setOrientation(Qt::Orientation orientation)
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{
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Q_D(QBarModelMapper);
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d->m_orientation = orientation;
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d->initializeBarFromModel();
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}
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/*!
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Returns which section of the model is used as the data source for the first bar set
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*/
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int QBarModelMapper::firstBarSetSection() const
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{
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Q_D(const QBarModelMapper);
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return d->m_firstBarSetSection;
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}
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/*!
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Sets the model section that is used as the data source for the first bar set
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Parameter \a firstBarSetSection specifies the section of the model.
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*/
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void QBarModelMapper::setFirstBarSetSection(int firstBarSetSection)
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{
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Q_D(QBarModelMapper);
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d->m_firstBarSetSection = qMax(-1, firstBarSetSection);
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d->initializeBarFromModel();
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}
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/*!
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Returns which section of the model is used as the data source for the last bar set
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*/
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int QBarModelMapper::lastBarSetSection() const
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{
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Q_D(const QBarModelMapper);
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return d->m_lastBarSetSection;
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}
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/*!
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Sets the model section that is used as the data source for the last bar set
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Parameter \a lastBarSetSection specifies the section of the model.
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*/
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void QBarModelMapper::setLastBarSetSection(int lastBarSetSection)
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{
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Q_D(QBarModelMapper);
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d->m_lastBarSetSection = qMax(-1, lastBarSetSection);
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d->initializeBarFromModel();
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QBarModelMapperPrivate::QBarModelMapperPrivate(QBarModelMapper *q) :
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QObject(q),
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m_series(0),
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m_model(0),
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m_first(0),
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m_count(-1),
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m_orientation(Qt::Vertical),
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m_firstBarSetSection(-1),
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m_lastBarSetSection(-1),
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m_seriesSignalsBlock(false),
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m_modelSignalsBlock(false),
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q_ptr(q)
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{
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}
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void QBarModelMapperPrivate::blockModelSignals(bool block)
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{
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m_modelSignalsBlock = block;
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}
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void QBarModelMapperPrivate::blockSeriesSignals(bool block)
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{
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m_seriesSignalsBlock = block;
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}
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QBarSet *QBarModelMapperPrivate::barSet(QModelIndex index)
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{
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if (!index.isValid())
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return 0;
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if (m_orientation == Qt::Vertical && index.column() >= m_firstBarSetSection && index.column() <= m_lastBarSetSection) {
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if (index.row() >= m_first && (m_count == - 1 || index.row() < m_first + m_count)) {
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return m_series->barSets().at(index.column() - m_firstBarSetSection);
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}
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} else if (m_orientation == Qt::Horizontal && index.row() >= m_firstBarSetSection && index.row() <= m_lastBarSetSection) {
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if (index.column() >= m_first && (m_count == - 1 || index.column() < m_first + m_count))
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return m_series->barSets().at(index.row() - m_firstBarSetSection);
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}
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return 0; // This part of model has not been mapped to any slice
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}
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QModelIndex QBarModelMapperPrivate::barModelIndex(int barSection, int posInBar)
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{
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if (m_count != -1 && posInBar >= m_count)
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return QModelIndex(); // invalid
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if (barSection < m_firstBarSetSection || barSection > m_lastBarSetSection)
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return QModelIndex(); // invalid
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if (m_orientation == Qt::Vertical)
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return m_model->index(posInBar + m_first, barSection);
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else
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return m_model->index(barSection, posInBar + m_first);
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}
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void QBarModelMapperPrivate::handleSeriesDestroyed()
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{
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m_series = 0;
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}
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void QBarModelMapperPrivate::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
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{
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Q_UNUSED(topLeft)
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Q_UNUSED(bottomRight)
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if (m_model == 0 || m_series == 0)
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return;
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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QModelIndex index;
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for (int row = topLeft.row(); row <= bottomRight.row(); row++) {
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for (int column = topLeft.column(); column <= bottomRight.column(); column++) {
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index = topLeft.sibling(row, column);
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QBarSet *bar = barSet(index);
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if (bar) {
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if (m_orientation == Qt::Vertical)
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bar->replace(row - m_first, m_model->data(index).toReal());
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else
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bar->replace(column - m_first, m_model->data(index).toReal());
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}
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}
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}
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelHeaderDataUpdated(Qt::Orientation orientation, int first, int last)
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{
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if (m_model == 0 || m_series == 0)
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return;
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (orientation != m_orientation) {
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for (int section = first; section <= last; section++) {
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if (section >= m_firstBarSetSection && section <= m_lastBarSetSection) {
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QBarSet *bar = m_series->barSets().at(section - m_firstBarSetSection);
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if (bar)
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bar->setLabel(m_model->headerData(section, orientation).toString());
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}
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}
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}
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelRowsAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent)
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Vertical)
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insertData(start, end);
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else if (start <= m_firstBarSetSection || start <= m_lastBarSetSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelRowsRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent)
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Vertical)
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removeData(start, end);
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else if (start <= m_firstBarSetSection || start <= m_lastBarSetSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelColumnsAdded(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent)
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Horizontal)
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insertData(start, end);
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else if (start <= m_firstBarSetSection || start <= m_lastBarSetSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::modelColumnsRemoved(QModelIndex parent, int start, int end)
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{
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Q_UNUSED(parent)
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if (m_modelSignalsBlock)
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return;
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blockSeriesSignals();
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if (m_orientation == Qt::Horizontal)
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removeData(start, end);
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else if (start <= m_firstBarSetSection || start <= m_lastBarSetSection) // if the changes affect the map - reinitialize
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initializeBarFromModel();
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blockSeriesSignals(false);
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}
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void QBarModelMapperPrivate::handleModelDestroyed()
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{
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m_model = 0;
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}
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void QBarModelMapperPrivate::insertData(int start, int end)
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{
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Q_UNUSED(end)
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Q_UNUSED(start)
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Q_UNUSED(end)
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// Currently barchart needs to be fully recalculated when change is made.
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// Re-initialize
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initializeBarFromModel();
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}
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void QBarModelMapperPrivate::removeData(int start, int end)
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{
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Q_UNUSED(end)
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Q_UNUSED(start)
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Q_UNUSED(end)
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// Currently barchart needs to be fully recalculated when change is made.
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// Re-initialize
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initializeBarFromModel();
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}
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void QBarModelMapperPrivate::barSetsAdded(QList<QBarSet *> sets)
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{
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if (m_seriesSignalsBlock)
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return;
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if (sets.count() == 0)
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return;
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int firstIndex = m_series->barSets().indexOf(sets.at(0));
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if (firstIndex == -1)
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return;
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int maxCount = 0;
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for (int i = 0; i < sets.count(); i++) {
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if (sets.at(i)->count() > m_count)
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maxCount = sets.at(i)->count();
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}
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if (m_count != -1 && m_count < maxCount)
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m_count = maxCount;
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m_lastBarSetSection += sets.count();
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blockModelSignals();
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int modelCapacity = m_orientation == Qt::Vertical ? m_model->rowCount() - m_first : m_model->columnCount() - m_first;
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if (maxCount > modelCapacity) {
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if (m_orientation == Qt::Vertical)
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m_model->insertRows(m_model->rowCount(), maxCount - modelCapacity);
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else
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m_model->insertColumns(m_model->columnCount(), maxCount - modelCapacity);
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}
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if (m_orientation == Qt::Vertical)
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m_model->insertColumns(firstIndex + m_firstBarSetSection, sets.count());
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else
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m_model->insertRows(firstIndex + m_firstBarSetSection, sets.count());
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for (int i = firstIndex + m_firstBarSetSection; i < firstIndex + m_firstBarSetSection + sets.count(); i++) {
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m_model->setHeaderData(i, m_orientation == Qt::Vertical ? Qt::Horizontal : Qt::Vertical, sets.at(i - firstIndex - m_firstBarSetSection)->label());
|
|
|
for (int j = 0; j < sets.at(i - firstIndex - m_firstBarSetSection)->count(); j++)
|
|
|
m_model->setData(barModelIndex(i, j), sets.at(i - firstIndex - m_firstBarSetSection)->at(j));
|
|
|
}
|
|
|
blockModelSignals(false);
|
|
|
initializeBarFromModel();
|
|
|
}
|
|
|
|
|
|
void QBarModelMapperPrivate::barSetsRemoved(QList<QBarSet *> sets)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
if (sets.count() == 0)
|
|
|
return;
|
|
|
|
|
|
int firstIndex = m_barSets.indexOf(sets.at(0));
|
|
|
if (firstIndex == -1)
|
|
|
return;
|
|
|
|
|
|
m_lastBarSetSection -= sets.count();
|
|
|
|
|
|
for (int i = firstIndex + sets.count() - 1; i >= firstIndex; i--)
|
|
|
m_barSets.removeAt(i);
|
|
|
|
|
|
blockModelSignals();
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
m_model->removeColumns(firstIndex + m_firstBarSetSection, sets.count());
|
|
|
else
|
|
|
m_model->removeRows(firstIndex + m_firstBarSetSection, sets.count());
|
|
|
blockModelSignals(false);
|
|
|
initializeBarFromModel();
|
|
|
}
|
|
|
|
|
|
void QBarModelMapperPrivate::valuesAdded(int index, int count)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
if (m_count != -1)
|
|
|
m_count += count;
|
|
|
|
|
|
int barSetIndex = m_barSets.indexOf(qobject_cast<QBarSet *>(QObject::sender()));
|
|
|
|
|
|
blockModelSignals();
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
m_model->insertRows(index + m_first, count);
|
|
|
else
|
|
|
m_model->insertColumns(index + m_first, count);
|
|
|
|
|
|
for (int j = index; j < index + count; j++)
|
|
|
m_model->setData(barModelIndex(barSetIndex + m_firstBarSetSection, j), m_barSets.at(barSetIndex)->at(j));
|
|
|
|
|
|
blockModelSignals(false);
|
|
|
initializeBarFromModel();
|
|
|
}
|
|
|
|
|
|
void QBarModelMapperPrivate::valuesRemoved(int index, int count)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
if (m_count != -1)
|
|
|
m_count -= count;
|
|
|
|
|
|
blockModelSignals();
|
|
|
if (m_orientation == Qt::Vertical)
|
|
|
m_model->removeRows(index + m_first, count);
|
|
|
else
|
|
|
m_model->removeColumns(index + m_first, count);
|
|
|
|
|
|
blockModelSignals(false);
|
|
|
initializeBarFromModel();
|
|
|
}
|
|
|
|
|
|
void QBarModelMapperPrivate::barLabelChanged()
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
int barSetIndex = m_barSets.indexOf(qobject_cast<QBarSet *>(QObject::sender()));
|
|
|
|
|
|
blockModelSignals();
|
|
|
m_model->setHeaderData(barSetIndex + m_firstBarSetSection, m_orientation == Qt::Vertical ? Qt::Horizontal : Qt::Vertical, m_barSets.at(barSetIndex)->label());
|
|
|
blockModelSignals(false);
|
|
|
initializeBarFromModel();
|
|
|
}
|
|
|
|
|
|
void QBarModelMapperPrivate::barValueChanged(int index)
|
|
|
{
|
|
|
if (m_seriesSignalsBlock)
|
|
|
return;
|
|
|
|
|
|
int barSetIndex = m_barSets.indexOf(qobject_cast<QBarSet *>(QObject::sender()));
|
|
|
|
|
|
blockModelSignals();
|
|
|
m_model->setData(barModelIndex(barSetIndex + m_firstBarSetSection, index), m_barSets.at(barSetIndex)->at(index));
|
|
|
blockModelSignals(false);
|
|
|
initializeBarFromModel();
|
|
|
}
|
|
|
|
|
|
void QBarModelMapperPrivate::initializeBarFromModel()
|
|
|
{
|
|
|
if (m_model == 0 || m_series == 0)
|
|
|
return;
|
|
|
|
|
|
blockSeriesSignals();
|
|
|
// clear current content
|
|
|
m_series->clear();
|
|
|
m_barSets.clear();
|
|
|
|
|
|
// create the initial bar sets
|
|
|
for (int i = m_firstBarSetSection; i <= m_lastBarSetSection; i++) {
|
|
|
int posInBar = 0;
|
|
|
QModelIndex barIndex = barModelIndex(i, posInBar);
|
|
|
// check if there is such model index
|
|
|
if (barIndex.isValid()) {
|
|
|
QBarSet *barSet = new QBarSet(m_model->headerData(i, m_orientation == Qt::Vertical ? Qt::Horizontal : Qt::Vertical).toString());
|
|
|
while (barIndex.isValid()) {
|
|
|
barSet->append(m_model->data(barIndex, Qt::DisplayRole).toDouble());
|
|
|
posInBar++;
|
|
|
barIndex = barModelIndex(i, posInBar);
|
|
|
}
|
|
|
connect(barSet, SIGNAL(valuesAdded(int,int)), this, SLOT(valuesAdded(int,int)));
|
|
|
connect(barSet, SIGNAL(valuesRemoved(int,int)), this, SLOT(valuesRemoved(int,int)));
|
|
|
connect(barSet, SIGNAL(valueChanged(int)), this, SLOT(barValueChanged(int)));
|
|
|
connect(barSet, SIGNAL(labelChanged()), this, SLOT(barLabelChanged()));
|
|
|
m_series->append(barSet);
|
|
|
m_barSets.append(barSet);
|
|
|
} else {
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
blockSeriesSignals(false);
|
|
|
}
|
|
|
|
|
|
#include "moc_qbarmodelmapper.cpp"
|
|
|
#include "moc_qbarmodelmapper_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
