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Diffstat (limited to 'examples/barchart/main.cpp')
| -rw-r--r-- | examples/barchart/main.cpp | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/examples/barchart/main.cpp b/examples/barchart/main.cpp new file mode 100644 index 00000000..0f04d8d4 --- /dev/null +++ b/examples/barchart/main.cpp @@ -0,0 +1,332 @@ +/**************************************************************************** +** +** 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 "q3dbars.h" +#include "qdataset.h" + +#include <QGuiApplication> +#include <QScreen> +#include <QTimer> +#include <QFont> +#include <QDebug> + +//#define CYCLE_THROUGH_STYLES +//#define CYCLE_THROUGH_PRESET_CAMERAS +//#define CYCLE_THROUGH_THEMES +#define USE_STATIC_DATA + +using namespace QtDataVis3D; + +class ChartDataGenerator : public QObject +{ +public: + explicit ChartDataGenerator(Q3DBars *barchart); + ~ChartDataGenerator(); + + void addDataSet(); + void addBars(); + void changeStyle(); + void changePresetCamera(); + void changeTheme(); + void start(); + +private: + Q3DBars *m_chart; + QTimer *m_dataTimer; + QTimer *m_styleTimer; + QTimer *m_presetTimer; + QTimer *m_themeTimer; + int m_columnCount; + int m_rowCount; +}; + +ChartDataGenerator::ChartDataGenerator(Q3DBars *barchart) + : m_chart(barchart), + m_dataTimer(0), + m_styleTimer(0), + m_presetTimer(0), + m_themeTimer(0), + m_columnCount(21), + m_rowCount(21) +{ + // 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); + +#ifndef USE_STATIC_DATA + // Set up sample space; make it as deep as it's wide + m_chart->setupSampleSpace(m_columnCount, m_rowCount); +#endif + + // Set bar type to smooth bar +#ifndef CYCLE_THROUGH_STYLES + m_chart->setBarType(Pyramids, false); +#endif + +#ifndef USE_STATIC_DATA + // Set selection mode to full + m_chart->setSelectionMode(ModeBarRowAndColumn); +#else + // Set selection mode to zoom row + m_chart->setSelectionMode(ModeZoomRow); + m_chart->setFont(QFont("Courier", 25)); +#endif + +#ifndef CYCLE_THROUGH_THEMES + // Set bar colors + m_chart->setBarColor(QColor(Qt::gray), QColor(Qt::red), QColor(Qt::darkBlue)); + //m_chart->setTheme(ThemeSystem); + m_chart->setLabelTransparency(TransparencyFromTheme); +#else + m_chart->setLabelTransparency(TransparencyNone); +#endif + + // Set preset camera position + m_chart->setCameraPreset(PresetFront); +} + +ChartDataGenerator::~ChartDataGenerator() +{ + if (m_dataTimer) { + m_dataTimer->stop(); + delete m_dataTimer; + } + if (m_styleTimer) { + m_styleTimer->stop(); + delete m_styleTimer; + } + if (m_presetTimer) { + m_presetTimer->stop(); + delete m_presetTimer; + } + if (m_themeTimer) { + m_themeTimer->stop(); + delete m_themeTimer; + } + delete m_chart; +} + +void ChartDataGenerator::start() +{ +#ifndef USE_STATIC_DATA + m_dataTimer = new QTimer(); + m_dataTimer->setTimerType(Qt::CoarseTimer); + m_dataTimer->setInterval(100); + QObject::connect(m_dataTimer, &QTimer::timeout, this, &ChartDataGenerator::addBars); + m_dataTimer->start(100); +#else + addDataSet(); +#endif + +#ifdef CYCLE_THROUGH_STYLES + // Change bar style every 10 seconds + m_styleTimer = new QTimer(); + m_styleTimer->setTimerType(Qt::CoarseTimer); + m_styleTimer->setInterval(10000); + QObject::connect(m_styleTimer, &QTimer::timeout, this, &ChartDataGenerator::changeStyle); + m_styleTimer->start(10000); +#endif + +#ifdef CYCLE_THROUGH_PRESET_CAMERAS + // Change preset camera every 5 seconds + m_presetTimer = new QTimer(); + m_presetTimer->setTimerType(Qt::CoarseTimer); + m_presetTimer->setInterval(5000); + QObject::connect(m_presetTimer, &QTimer::timeout, this, + &ChartDataGenerator::changePresetCamera); + m_presetTimer->start(5000); +#endif + +#ifdef CYCLE_THROUGH_THEMES + // Change theme every 2 seconds + m_themeTimer = new QTimer(); + m_themeTimer->setTimerType(Qt::CoarseTimer); + m_themeTimer->setInterval(3000);//2000); + QObject::connect(m_themeTimer, &QTimer::timeout, this, &ChartDataGenerator::changeTheme); + m_themeTimer->start(3000);//2000); +#endif +} + +void ChartDataGenerator::addDataSet() +{ +#if 0 + // Prepare data to be visualized + // Use float vector adder + QVector< QVector<float> > data; + QVector<float> row; + // TODO: Keep here for testing + for (int j = 0; j < m_rowCount; j++) { + for (int i = 0; i < m_columnCount; i++) { + row.prepend(((float)i / (float)m_columnCount) * 100 + (float)(rand() % 30)); + //row.append(1.0f); + } + data.append(row); + row.clear(); + } + // Set up sample space based on inserted data + m_chart->setupSampleSpace(m_columnCount, m_rowCount); + // Add data to chart + m_chart->addDataSet(data); +#else + // Prepare data to be visualized + // Use QDataSet adder + + // Set window title + m_chart->setWindowTitle(QStringLiteral("Hours playing banjo")); + + // Set up row and column names + QVector<QString> days; + days << "Monday" << "Tuesday" << "Wednesday" << "Thursday" << "Friday" << "Saturday" << "Sunday"; + QVector<QString> weeks; + weeks << "week 1" << "week 2" << "week 3" << "week 4" << "week 5"; + + // Set up data Mon Tue Wed Thu Fri Sat Sun + float hours[5][7] = {{2.0f, 1.0f, 3.0f, 0.2f, 1.0f, 5.0f, 7.0f}, // week 1 + {0.5f, 1.0f, 3.0f, 1.0f, 2.0f, 2.0f, 3.0f}, // week 2 + {1.0f, 1.0f, 2.0f, 1.0f, 4.0f, 4.0f, 4.0f}, // week 3 + {0.0f, 0.0f, 0.0f, 0.0f, 2.0f, 2.0f, 0.3f}, // week 4 + {3.0f, 3.0f, 6.0f, 2.0f, 2.0f, 1.0f, 1.0f}}; // week 5 + + // Create data set + QDataSet *dataSet = new QDataSet(); + + // Add labels + dataSet->setLabels("Week of year", "Day of week", "Hours playing banjo", weeks, days); + + // Create data rows + QDataRow *dataRow; + for (int week = 0; week < weeks.size(); week++) { + dataRow = new QDataRow(weeks.at(week)); + // Create data items + for (int day = 0; day < days.size(); day++) { + // Add data to rows + dataRow->addItem(new QDataItem(hours[week][day], "h"));//, " + days.at(day))); + } + // Add row to set + dataSet->addRow(dataRow); + // Get next pointer + dataRow++; + } + + // Set up sample space based on prepared data + m_chart->setupSampleSpace(days.size(), weeks.size()); + + // Add data to chart + m_chart->addDataSet(dataSet); +#endif +} + +void ChartDataGenerator::addBars() +{ + QVector<float> data; + for (int i = 0; i < m_columnCount; i++) + data.append(((float)i / (float)m_columnCount) / 2.0f + (float)(rand() % 30) / 100); + m_chart->addDataRow(data); +} + +void ChartDataGenerator::changeStyle() +{ + static int model = 0; + switch (model) { + case 0: + m_chart->setBarType(Cylinders, false); + break; + case 1: + m_chart->setBarType(Cylinders, true); + break; + case 2: + m_chart->setBarType(Cones, false); + break; + case 3: + m_chart->setBarType(Cones, true); + break; + case 4: + m_chart->setBarType(Bars, false); + break; + case 5: + m_chart->setBarType(Bars, true); + break; + case 6: + m_chart->setBarType(Pyramids, false); + break; + case 7: + m_chart->setBarType(Pyramids, true); + break; + } + model++; + if (model > 7) + model = 0; +} + +void ChartDataGenerator::changePresetCamera() +{ + static int preset = 0; + + m_chart->setCameraPreset((CameraPreset)preset); + + if (++preset > (int)PresetDirectlyAboveCCW45) + preset = 0; +} + +void ChartDataGenerator::changeTheme() +{ + static int theme = 0; + + m_chart->setTheme((ColorTheme)theme); + + if (++theme > (int)ThemeLight) + theme = 0; +} + +int main(int argc, char **argv) +{ + QGuiApplication app(argc, argv); + + Q3DBars barchart; + QSize screenSize = barchart.screen()->size(); + barchart.resize(screenSize.width() / 1.5, screenSize.height() / 1.5); + barchart.setPosition(screenSize.width() / 6, screenSize.height() / 6); + barchart.show(); + + ChartDataGenerator *generator = new ChartDataGenerator(&barchart); + generator->start(); + + return app.exec(); +} |