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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
** of its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "rainfallchart.h"
#include <QtDataVis3D/qcategoryaxis.h>
#include <QtDataVis3D/qvalueaxis.h>
#include <QGuiApplication>
#include <QFont>
#include <QDebug>
#include <QTextStream>
#include <QFile>
#define CHANGE_CITY_WITH_TIMER
using namespace QtDataVis3D;
RainfallChart::RainfallChart(Q3DBars *rainfall)
: m_chart(rainfall),
m_city(2)
{
// In data file the months are in numeric format, so create custom list
for (int i = 1; i <= 12; i++)
m_numericMonths << QString::number(i);
m_columnCount = m_numericMonths.size();
m_proxy = new VariantBarDataProxy;
m_proxy->setItemLabelFormat(QStringLiteral(" mm"));
m_chart->setDataProxy(m_proxy);
updateYearsList(2000, 2012);
// Set up bar specifications; make the bars as wide as they are deep,
// and add a small space between the bars
m_chart->setBarSpecs(QSizeF(1.0f, 1.0f), QSizeF(0.2f, 0.2f), true);
// Set axis labels and titles
QStringList months;
months << "January" << "February" << "March" << "April" << "May" << "June" << "July" << "August" << "September" << "October" << "November" << "December";
m_chart->rowAxis()->setTitle("Year");
m_chart->columnAxis()->setTitle("Month");
m_chart->valueAxis()->setTitle(QString("rainfall (in mm) in city %1").arg(m_city - 1));
m_chart->rowAxis()->setCategoryLabels(m_years);
m_chart->columnAxis()->setCategoryLabels(months);
// Set bar type to cylinder
m_chart->setBarType(Cylinders, false);
// Set shadows to medium
m_chart->setShadowQuality(ShadowMedium);
// Set font
m_chart->setFont(QFont("Century Gothic", 40));
// Set selection mode to bar and column
//m_chart->setSelectionMode(ModeBarAndColumn);
m_chart->setSelectionMode(ModeZoomColumn);
// Set theme
m_chart->setTheme(ThemeBlueNcs);
// Set preset camera position
m_chart->setCameraPreset(PresetIsometricRightHigh);
// Disable grid
m_chart->setGridVisible(false);
// Set window title
m_chart->setWindowTitle(QStringLiteral("Monthly rainfall in various cities"));
}
RainfallChart::~RainfallChart()
{
delete m_mapping;
delete m_dataSet;
delete m_chart;
}
void RainfallChart::start()
{
addDataSet();
#ifdef CHANGE_CITY_WITH_TIMER
connect(&m_timer, &QTimer::timeout, this, &RainfallChart::timeout);
m_timer.start(3000);
#endif
}
void RainfallChart::timeout()
{
if (++m_city > 4)
m_city = 2;
m_proxy->mapping()->setValueIndex(m_city);
m_chart->valueAxis()->setTitle(QString("rainfall (in mm) in city %1").arg(m_city - 1));
}
void RainfallChart::updateYearsList(int start, int end)
{
m_years.clear();
for (int i = start; i <= end; i++)
m_years << QString::number(i);
m_rowCount = m_years.size();
// Set up sample space; make it match actual resolved data size
m_chart->setupSampleSpace(m_rowCount, m_columnCount);
}
void RainfallChart::addDataSet()
{
m_dataSet = new VariantDataSet;
VariantDataItemList *itemList = new VariantDataItemList;
QTextStream stream;
QFile dataFile(":/data/raindata.txt");
if (dataFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
stream.setDevice(&dataFile);
while (!stream.atEnd()) {
QString line = stream.readLine();
if (line.startsWith("#"))
continue;
QStringList strList = line.split(",", QString::SkipEmptyParts);
if (strList.size() < 5) {
qWarning() << "Invalid row read from data:" << line;
continue;
}
VariantDataItem *newItem = new VariantDataItem;
for (int i = 0; i < 2; i++)
newItem->append(strList.at(i).trimmed());
for (int i = 2; i < 5; i++)
newItem->append(strList.at(i).trimmed().toDouble());
itemList->append(newItem);
}
} else {
qWarning() << "Unable to open data file:" << dataFile.fileName();
}
m_dataSet->addItems(itemList);
m_proxy->setDataSet(m_dataSet);
m_mapping = new VariantBarDataMapping(0, 1, m_city, m_years, m_numericMonths);
m_proxy->setMapping(m_mapping);
}
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