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Accelerating lineseries with OpenGL...
Accelerating lineseries with OpenGL Added support for QAbstractSeries::useOpenGL property. When true, the series in question is drawn on a separate offscreen buffer using OpenGL and then superimposed on the chart. Currently this property is only supported for line and scatter series. Change-Id: I174fec541f9f3c23464270c1fe08f824af16a0fb Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com> Reviewed-by: Tomi Korpipää <tomi.korpipaa@theqtcompany.com>
Miikka Heikkinen - - Load All Authors

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r2820:79a856530b69
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themewidget.cpp
370 lines | 12.7 KiB | text/x-c | CppLexer
/ examples / charts / chartthemes / themewidget.cpp
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Michal Klocek
Updates chartstheme demo, small refactor
 r748 /****************************************************************************
Jani Honkonen
Add/modify license headers
 r830 **
Titta Heikkala
Copyright header changes...
 r2776 ** Copyright (C) 2015 The Qt Company Ltd
Jani Honkonen
Add/modify license headers
 r830 ** All rights reserved.
Titta Heikkala
Copyright header changes...
 r2776 ** For any questions to The Qt Company, please use contact form at http://qt.io
Jani Honkonen
Add/modify license headers
 r830 **
Titta Heikkala
Updated license headers...
 r2740 ** This file is part of the Qt Charts module.
Jani Honkonen
Add/modify license headers
 r830 **
Titta Heikkala
Updated license headers...
 r2740 ** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
Titta Heikkala
Copyright header changes...
 r2776 ** agreement between you and The Qt Company.
Jani Honkonen
Add/modify license headers
 r830 **
** If you have questions regarding the use of this file, please use
Titta Heikkala
Updated license headers...
 r2740 ** contact form at http://qt.io
Jani Honkonen
Add/modify license headers
 r830 **
****************************************************************************/
Michal Klocek
Updates chartstheme demo, small refactor
 r748
#include "themewidget.h"
Titta Heikkala
Fix include syntax...
 r2714 #include <QtCharts/QChartView>
#include <QtCharts/QPieSeries>
#include <QtCharts/QPieSlice>
#include <QtCharts/QAbstractBarSeries>
#include <QtCharts/QPercentBarSeries>
#include <QtCharts/QStackedBarSeries>
#include <QtCharts/QBarSeries>
#include <QtCharts/QBarSet>
#include <QtCharts/QLineSeries>
#include <QtCharts/QSplineSeries>
#include <QtCharts/QScatterSeries>
#include <QtCharts/QAreaSeries>
#include <QtCharts/QLegend>
#include <QtWidgets/QGridLayout>
#include <QtWidgets/QFormLayout>
#include <QtWidgets/QComboBox>
#include <QtWidgets/QSpinBox>
#include <QtWidgets/QCheckBox>
#include <QtWidgets/QGroupBox>
#include <QtWidgets/QLabel>
#include <QtCore/QTime>
#include <QtCharts/QBarCategoryAxis>
Michal Klocek
Updates chartstheme demo, small refactor
 r748
Jani Honkonen
coding style fixes for demos
 r2099 ThemeWidget::ThemeWidget(QWidget *parent) :
Michal Klocek
Updates chartstheme demo, small refactor
 r748 QWidget(parent),
m_listCount(3),
Tero Ahola
Better test data for theme demo
 r843 m_valueMax(10),
m_valueCount(7),
Jani Honkonen
coding style fixes for demos
 r2099 m_dataTable(generateRandomData(m_listCount, m_valueMax, m_valueCount)),
Michal Klocek
Updates chartstheme demo, small refactor
 r748 m_themeComboBox(createThemeBox()),
Tero Ahola
Removed default theme, now using light as the default
 r853 m_antialiasCheckBox(new QCheckBox("Anti-aliasing")),
sauimone
legend pos to theme example, legend padding
 r803 m_animatedComboBox(createAnimationBox()),
m_legendComboBox(createLegendBox())
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
connectSignals();
// create layout
Jani Honkonen
coding style fixes for demos
 r2099 QGridLayout *baseLayout = new QGridLayout();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 QHBoxLayout *settingsLayout = new QHBoxLayout();
settingsLayout->addWidget(new QLabel("Theme:"));
settingsLayout->addWidget(m_themeComboBox);
settingsLayout->addWidget(new QLabel("Animation:"));
settingsLayout->addWidget(m_animatedComboBox);
Michal Klocek
Refactor qledgend handling...
 r855 settingsLayout->addWidget(new QLabel("Legend:"));
sauimone
legend pos to theme example, legend padding
 r803 settingsLayout->addWidget(m_legendComboBox);
Michal Klocek
Updates chartstheme demo, small refactor
 r748 settingsLayout->addWidget(m_antialiasCheckBox);
settingsLayout->addStretch();
baseLayout->addLayout(settingsLayout, 0, 0, 1, 3);
//create charts
QChartView *chartView;
chartView = new QChartView(createAreaChart());
baseLayout->addWidget(chartView, 1, 0);
m_charts << chartView;
chartView = new QChartView(createBarChart(m_valueCount));
baseLayout->addWidget(chartView, 1, 1);
m_charts << chartView;
chartView = new QChartView(createLineChart());
baseLayout->addWidget(chartView, 1, 2);
m_charts << chartView;
chartView = new QChartView(createPieChart());
chartView->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored); // funny things happen if the pie slice labels no not fit the screen...
baseLayout->addWidget(chartView, 2, 0);
m_charts << chartView;
chartView = new QChartView(createSplineChart());
baseLayout->addWidget(chartView, 2, 1);
m_charts << chartView;
Michal Klocek
minor. typo
 r754 chartView = new QChartView(createScatterChart());
Michal Klocek
Updates chartstheme demo, small refactor
 r748 baseLayout->addWidget(chartView, 2, 2);
m_charts << chartView;
setLayout(baseLayout);
Tero Ahola
Better test data for theme demo
 r843
// Set defaults
m_antialiasCheckBox->setChecked(true);
Michal Klocek
Refactor qledgend handling...
 r855 updateUI();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 }
ThemeWidget::~ThemeWidget()
{
}
void ThemeWidget::connectSignals()
{
connect(m_themeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
connect(m_antialiasCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateUI()));
connect(m_animatedComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
sauimone
legend pos to theme example, legend padding
 r803 connect(m_legendComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
Michal Klocek
Updates chartstheme demo, small refactor
 r748 }
Jani Honkonen
coding style fixes for demos
 r2099 DataTable ThemeWidget::generateRandomData(int listCount, int valueMax, int valueCount) const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
DataTable dataTable;
// set seed for random stuff
qsrand(QTime(0, 0, 0).secsTo(QTime::currentTime()));
// generate random data
for (int i(0); i < listCount; i++) {
DataList dataList;
Tero Ahola
Better test data for theme demo
 r843 qreal yValue(0);
Michal Klocek
Updates chartstheme demo, small refactor
 r748 for (int j(0); j < valueCount; j++) {
Jani Honkonen
coding style fixes for demos
 r2099 yValue = yValue + (qreal)(qrand() % valueMax) / (qreal) valueCount;
Tero Ahola
Better test data for theme demo
 r843 QPointF value((j + (qreal) rand() / (qreal) RAND_MAX) * ((qreal) m_valueMax / (qreal) valueCount),
yValue);
Tero Ahola
Theme example sets and slices renamed (shown if legend enabled)
 r945 QString label = "Slice " + QString::number(i) + ":" + QString::number(j);
Michal Klocek
Updates chartstheme demo, small refactor
 r748 dataList << Data(value, label);
}
dataTable << dataList;
}
return dataTable;
}
Jani Honkonen
coding style fixes for demos
 r2099 QComboBox *ThemeWidget::createThemeBox() const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
// settings layout
Jani Honkonen
coding style fixes for demos
 r2099 QComboBox *themeComboBox = new QComboBox();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 themeComboBox->addItem("Light", QChart::ChartThemeLight);
themeComboBox->addItem("Blue Cerulean", QChart::ChartThemeBlueCerulean);
themeComboBox->addItem("Dark", QChart::ChartThemeDark);
themeComboBox->addItem("Brown Sand", QChart::ChartThemeBrownSand);
themeComboBox->addItem("Blue NCS", QChart::ChartThemeBlueNcs);
Tero Ahola
Added Icy Blue and High Contrast theme
 r757 themeComboBox->addItem("High Contrast", QChart::ChartThemeHighContrast);
themeComboBox->addItem("Blue Icy", QChart::ChartThemeBlueIcy);
Titta Heikkala
Add new Qt theme template...
 r2625 themeComboBox->addItem("Qt", QChart::ChartThemeQt);
Michal Klocek
Updates chartstheme demo, small refactor
 r748 return themeComboBox;
}
Jani Honkonen
coding style fixes for demos
 r2099 QComboBox *ThemeWidget::createAnimationBox() const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
// settings layout
Jani Honkonen
coding style fixes for demos
 r2099 QComboBox *animationComboBox = new QComboBox();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 animationComboBox->addItem("No Animations", QChart::NoAnimation);
animationComboBox->addItem("GridAxis Animations", QChart::GridAxisAnimations);
animationComboBox->addItem("Series Animations", QChart::SeriesAnimations);
animationComboBox->addItem("All Animations", QChart::AllAnimations);
return animationComboBox;
}
Jani Honkonen
coding style fixes for demos
 r2099 QComboBox *ThemeWidget::createLegendBox() const
sauimone
legend pos to theme example, legend padding
 r803 {
Jani Honkonen
coding style fixes for demos
 r2099 QComboBox *legendComboBox = new QComboBox();
Michal Klocek
Refactor qledgend handling...
 r855 legendComboBox->addItem("No Legend ", 0);
Tero Ahola
Qml ChartView properties; legend to use Qt alignments
 r1357 legendComboBox->addItem("Legend Top", Qt::AlignTop);
legendComboBox->addItem("Legend Bottom", Qt::AlignBottom);
legendComboBox->addItem("Legend Left", Qt::AlignLeft);
legendComboBox->addItem("Legend Right", Qt::AlignRight);
sauimone
legend pos to theme example, legend padding
 r803 return legendComboBox;
}
Jani Honkonen
coding style fixes for demos
 r2099 QChart *ThemeWidget::createAreaChart() const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
QChart *chart = new QChart();
chart->setTitle("Area chart");
Tero Ahola
Better test data for theme demo
 r843
// The lower series initialized to zero values
Tero Ahola
Simpler area series in the theme demo
 r845 QLineSeries *lowerSeries = 0;
Tero Ahola
Removed key zoom/scroll from QChartView
 r958 QString name("Series ");
int nameIndex = 0;
Tero Ahola
Better test data for theme demo
 r843 for (int i(0); i < m_dataTable.count(); i++) {
QLineSeries *upperSeries = new QLineSeries(chart);
for (int j(0); j < m_dataTable[i].count(); j++) {
Data data = m_dataTable[i].at(j);
Jani Honkonen
coding style fixes for demos
 r2099 if (lowerSeries) {
Miikka Heikkinen
Accelerating lineseries with OpenGL...
 r2820 const QVector<QPointF>& points = lowerSeries->pointsVector();
Michal Klocek
Fixes and improvments to series API...
 r1057 upperSeries->append(QPointF(j, points[i].y() + data.first.y()));
Jani Honkonen
coding style fixes for demos
 r2099 } else {
Tero Ahola
Simpler area series in the theme demo
 r845 upperSeries->append(QPointF(j, data.first.y()));
Jani Honkonen
coding style fixes for demos
 r2099 }
Michal Klocek
Updates chartstheme demo, small refactor
 r748 }
Tero Ahola
Better test data for theme demo
 r843 QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries);
area->setName(name + QString::number(nameIndex));
nameIndex++;
chart->addSeries(area);
Marek Rosa
Updated chartthemes demo
 r1582 chart->createDefaultAxes();
Tero Ahola
Better test data for theme demo
 r843 lowerSeries = upperSeries;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 }
Tero Ahola
Removed key zoom/scroll from QChartView
 r958
Michal Klocek
Updates chartstheme demo, small refactor
 r748 return chart;
}
Jani Honkonen
coding style fixes for demos
 r2099 QChart *ThemeWidget::createBarChart(int valueCount) const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
sauimone
removed warning from chartthemes demo
 r1675 Q_UNUSED(valueCount);
Jani Honkonen
coding style fixes for demos
 r2099 QChart *chart = new QChart();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->setTitle("Bar chart");
Tero Ahola
Removed key zoom/scroll from QChartView
 r958
Jani Honkonen
coding style fixes for demos
 r2099 QStackedBarSeries *series = new QStackedBarSeries(chart);
Tero Ahola
Better test data for theme demo
 r843 for (int i(0); i < m_dataTable.count(); i++) {
Tero Ahola
Theme example sets and slices renamed (shown if legend enabled)
 r945 QBarSet *set = new QBarSet("Bar set " + QString::number(i));
Tero Ahola
Better test data for theme demo
 r843 foreach (Data data, m_dataTable[i])
*set << data.first.y();
sauimone
Renamed appendBarSet to append, removeBarSet to remove
 r1194 series->append(set);
Michal Klocek
Updates chartstheme demo, small refactor
 r748 }
Tero Ahola
Better test data for theme demo
 r843 chart->addSeries(series);
Michal Klocek
Refactor QChart API...
 r1577 chart->createDefaultAxes();
Tero Ahola
Removed key zoom/scroll from QChartView
 r958
Michal Klocek
Updates chartstheme demo, small refactor
 r748 return chart;
}
Jani Honkonen
coding style fixes for demos
 r2099 QChart *ThemeWidget::createLineChart() const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
Jani Honkonen
coding style fixes for demos
 r2099 QChart *chart = new QChart();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->setTitle("Line chart");
Tero Ahola
Removed key zoom/scroll from QChartView
 r958
sauimone
updated theme example. minor fix to legend
 r786 QString name("Series ");
int nameIndex = 0;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 foreach (DataList list, m_dataTable) {
QLineSeries *series = new QLineSeries(chart);
foreach (Data data, list)
Jani Honkonen
rename functions add() -> append()
 r796 series->append(data.first);
sauimone
updated theme example. minor fix to legend
 r786 series->setName(name + QString::number(nameIndex));
nameIndex++;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->addSeries(series);
}
Michal Klocek
Adds createDefaultAxes logic
 r1588 chart->createDefaultAxes();
Tero Ahola
Removed key zoom/scroll from QChartView
 r958
Michal Klocek
Updates chartstheme demo, small refactor
 r748 return chart;
}
Jani Honkonen
coding style fixes for demos
 r2099 QChart *ThemeWidget::createPieChart() const
Michal Klocek
Updates chartstheme demo, small refactor
 r748 {
Jani Honkonen
coding style fixes for demos
 r2099 QChart *chart = new QChart();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->setTitle("Pie chart");
Tero Ahola
Removed key zoom/scroll from QChartView
 r958
Michal Klocek
Updates chartstheme demo, small refactor
 r748 qreal pieSize = 1.0 / m_dataTable.count();
for (int i = 0; i < m_dataTable.count(); i++) {
QPieSeries *series = new QPieSeries(chart);
foreach (Data data, m_dataTable[i]) {
Jani Honkonen
pie: change the order of parameters when creating slices to be more intuitive
 r1206 QPieSlice *slice = series->append(data.second, data.first.y());
Michal Klocek
Updates chartstheme demo, small refactor
 r748 if (data == m_dataTable[i].first()) {
slice->setLabelVisible();
slice->setExploded();
}
}
qreal hPos = (pieSize / 2) + (i / (qreal) m_dataTable.count());
series->setPieSize(pieSize);
Tero Ahola
QSeries name and QPieSeries properties to QML api
 r884 series->setHorizontalPosition(hPos);
series->setVerticalPosition(0.5);
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->addSeries(series);
}
return chart;
}
Jani Honkonen
coding style fixes for demos
 r2099 QChart *ThemeWidget::createSplineChart() const
{
// spine chart
QChart *chart = new QChart();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->setTitle("Spline chart");
sauimone
updated theme example. minor fix to legend
 r786 QString name("Series ");
int nameIndex = 0;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 foreach (DataList list, m_dataTable) {
QSplineSeries *series = new QSplineSeries(chart);
foreach (Data data, list)
Jani Honkonen
rename functions add() -> append()
 r796 series->append(data.first);
sauimone
updated theme example. minor fix to legend
 r786 series->setName(name + QString::number(nameIndex));
nameIndex++;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->addSeries(series);
}
Michal Klocek
Adds createDefaultAxes logic
 r1588 chart->createDefaultAxes();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 return chart;
}
Jani Honkonen
coding style fixes for demos
 r2099 QChart *ThemeWidget::createScatterChart() const
{
// scatter chart
QChart *chart = new QChart();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->setTitle("Scatter chart");
sauimone
updated theme example. minor fix to legend
 r786 QString name("Series ");
int nameIndex = 0;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 foreach (DataList list, m_dataTable) {
QScatterSeries *series = new QScatterSeries(chart);
foreach (Data data, list)
Jani Honkonen
rename functions add() -> append()
 r796 series->append(data.first);
sauimone
updated theme example. minor fix to legend
 r786 series->setName(name + QString::number(nameIndex));
nameIndex++;
Michal Klocek
Updates chartstheme demo, small refactor
 r748 chart->addSeries(series);
}
Michal Klocek
Adds createDefaultAxes logic
 r1588 chart->createDefaultAxes();
Michal Klocek
Updates chartstheme demo, small refactor
 r748 return chart;
}
void ThemeWidget::updateUI()
{
QChart::ChartTheme theme = (QChart::ChartTheme) m_themeComboBox->itemData(m_themeComboBox->currentIndex()).toInt();
if (m_charts.at(0)->chart()->theme() != theme) {
foreach (QChartView *chartView, m_charts)
chartView->chart()->setTheme(theme);
QPalette pal = window()->palette();
if (theme == QChart::ChartThemeLight) {
pal.setColor(QPalette::Window, QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
Tero Ahola
Added Icy Blue and High Contrast theme
 r757 } else if (theme == QChart::ChartThemeDark) {
Michal Klocek
Updates chartstheme demo, small refactor
 r748 pal.setColor(QPalette::Window, QRgb(0x121218));
pal.setColor(QPalette::WindowText, QRgb(0xd6d6d6));
Tero Ahola
Added Icy Blue and High Contrast theme
 r757 } else if (theme == QChart::ChartThemeBlueCerulean) {
Michal Klocek
Updates chartstheme demo, small refactor
 r748 pal.setColor(QPalette::Window, QRgb(0x40434a));
pal.setColor(QPalette::WindowText, QRgb(0xd6d6d6));
Tero Ahola
Added Icy Blue and High Contrast theme
 r757 } else if (theme == QChart::ChartThemeBrownSand) {
Michal Klocek
Updates chartstheme demo, small refactor
 r748 pal.setColor(QPalette::Window, QRgb(0x9e8965));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
Tero Ahola
Added Icy Blue and High Contrast theme
 r757 } else if (theme == QChart::ChartThemeBlueNcs) {
Michal Klocek
Updates chartstheme demo, small refactor
 r748 pal.setColor(QPalette::Window, QRgb(0x018bba));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
Tero Ahola
Added Icy Blue and High Contrast theme
 r757 } else if (theme == QChart::ChartThemeHighContrast) {
pal.setColor(QPalette::Window, QRgb(0xffab03));
pal.setColor(QPalette::WindowText, QRgb(0x181818));
} else if (theme == QChart::ChartThemeBlueIcy) {
pal.setColor(QPalette::Window, QRgb(0xcee7f0));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
} else {
Michal Klocek
Updates chartstheme demo, small refactor
 r748 pal.setColor(QPalette::Window, QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
}
window()->setPalette(pal);
}
bool checked = m_antialiasCheckBox->isChecked();
foreach (QChartView *chart, m_charts)
chart->setRenderHint(QPainter::Antialiasing, checked);
QChart::AnimationOptions options(m_animatedComboBox->itemData(m_animatedComboBox->currentIndex()).toInt());
if (m_charts.at(0)->chart()->animationOptions() != options) {
foreach (QChartView *chartView, m_charts)
chartView->chart()->setAnimationOptions(options);
}
sauimone
legend pos to theme example, legend padding
 r803
Tero Ahola
Qml ChartView properties; legend to use Qt alignments
 r1357 Qt::Alignment alignment(m_legendComboBox->itemData(m_legendComboBox->currentIndex()).toInt());
Michal Klocek
Refactor qledgend handling...
 r855
if (!alignment) {
Jani Honkonen
coding style fixes for demos
 r2099 foreach (QChartView *chartView, m_charts)
Michal Klocek
Refactor qledgend handling...
 r855 chartView->chart()->legend()->hide();
Tero Ahola
Removed key zoom/scroll from QChartView
 r958 } else {
Tero Ahola
Added option for disabling legend in chart theme demo
 r848 foreach (QChartView *chartView, m_charts) {
Jani Honkonen
Spelling fix QLegend::setAlignmnent -> setAlignment
 r907 chartView->chart()->legend()->setAlignment(alignment);
Michal Klocek
Refactor qledgend handling...
 r855 chartView->chart()->legend()->show();
Tero Ahola
Added option for disabling legend in chart theme demo
 r848 }
Tero Ahola
Removed key zoom/scroll from QChartView
 r958 }
Michal Klocek
Updates chartstheme demo, small refactor
 r748 }