| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <QtWidgets/QApplication> |
| #include <QtWidgets/QMainWindow> |
| #include <QtCharts/QChartView> |
| #include <QtCharts/QLineSeries> |
| #include <QtCharts/QCategoryAxis> |
| |
| QT_CHARTS_USE_NAMESPACE |
| |
| int main(int argc, char *argv[]) |
| { |
| QApplication a(argc, argv); |
| |
| //![1] |
| QLineSeries *series = new QLineSeries(); |
| *series << QPointF(0, 6) << QPointF(9, 4) << QPointF(15, 20) << QPointF(25, 12) << QPointF(29, 26); |
| QChart *chart = new QChart(); |
| chart->legend()->hide(); |
| chart->addSeries(series); |
| //![1] |
| |
| //![2] |
| // Customize series |
| QPen pen(QRgb(0xfdb157)); |
| pen.setWidth(5); |
| series->setPen(pen); |
| |
| // Customize chart title |
| QFont font; |
| font.setPixelSize(18); |
| chart->setTitleFont(font); |
| chart->setTitleBrush(QBrush(Qt::white)); |
| chart->setTitle("Customchart example"); |
| |
| // Customize chart background |
| QLinearGradient backgroundGradient; |
| backgroundGradient.setStart(QPointF(0, 0)); |
| backgroundGradient.setFinalStop(QPointF(0, 1)); |
| backgroundGradient.setColorAt(0.0, QRgb(0xd2d0d1)); |
| backgroundGradient.setColorAt(1.0, QRgb(0x4c4547)); |
| backgroundGradient.setCoordinateMode(QGradient::ObjectBoundingMode); |
| chart->setBackgroundBrush(backgroundGradient); |
| |
| // Customize plot area background |
| QLinearGradient plotAreaGradient; |
| plotAreaGradient.setStart(QPointF(0, 1)); |
| plotAreaGradient.setFinalStop(QPointF(1, 0)); |
| plotAreaGradient.setColorAt(0.0, QRgb(0x555555)); |
| plotAreaGradient.setColorAt(1.0, QRgb(0x55aa55)); |
| plotAreaGradient.setCoordinateMode(QGradient::ObjectBoundingMode); |
| chart->setPlotAreaBackgroundBrush(plotAreaGradient); |
| chart->setPlotAreaBackgroundVisible(true); |
| //![2] |
| |
| //![3] |
| QCategoryAxis *axisX = new QCategoryAxis(); |
| QCategoryAxis *axisY = new QCategoryAxis(); |
| |
| // Customize axis label font |
| QFont labelsFont; |
| labelsFont.setPixelSize(12); |
| axisX->setLabelsFont(labelsFont); |
| axisY->setLabelsFont(labelsFont); |
| |
| // Customize axis colors |
| QPen axisPen(QRgb(0xd18952)); |
| axisPen.setWidth(2); |
| axisX->setLinePen(axisPen); |
| axisY->setLinePen(axisPen); |
| |
| // Customize axis label colors |
| QBrush axisBrush(Qt::white); |
| axisX->setLabelsBrush(axisBrush); |
| axisY->setLabelsBrush(axisBrush); |
| |
| // Customize grid lines and shades |
| axisX->setGridLineVisible(false); |
| axisY->setGridLineVisible(false); |
| axisY->setShadesPen(Qt::NoPen); |
| axisY->setShadesBrush(QBrush(QColor(0x99, 0xcc, 0xcc, 0x55))); |
| axisY->setShadesVisible(true); |
| //![3] |
| |
| //![4] |
| axisX->append("low", 10); |
| axisX->append("optimal", 20); |
| axisX->append("high", 30); |
| axisX->setRange(0, 30); |
| |
| axisY->append("slow", 10); |
| axisY->append("med", 20); |
| axisY->append("fast", 30); |
| axisY->setRange(0, 30); |
| |
| chart->addAxis(axisX, Qt::AlignBottom); |
| chart->addAxis(axisY, Qt::AlignLeft); |
| series->attachAxis(axisX); |
| series->attachAxis(axisY); |
| //![4] |
| |
| //![5] |
| QChartView *chartView = new QChartView(chart); |
| chartView->setRenderHint(QPainter::Antialiasing); |
| //![5] |
| |
| //![6] |
| QMainWindow window; |
| window.setCentralWidget(chartView); |
| window.resize(400, 300); |
| window.show(); |
| //![6] |
| |
| return a.exec(); |
| } |