main.cpp
71 lines
| 2.3 KiB
| text/x-c
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CppLexer
winter
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r0 | /**************************************************************************** | ||
** | ||||
** 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 "chart.h" | ||||
#include "chartview.h" | ||||
#include <QtWidgets/QApplication> | ||||
#include <QtWidgets/QMainWindow> | ||||
#include <QtCore/QtMath> | ||||
#include <QtCharts/QLineSeries> | ||||
#include <QtCharts/QValueAxis> | ||||
QT_CHARTS_USE_NAMESPACE | ||||
int main(int argc, char *argv[]) | ||||
{ | ||||
QApplication a(argc, argv); | ||||
//![1] | ||||
QLineSeries *series = new QLineSeries(); | ||||
for (int i = 0; i < 500; i++) { | ||||
QPointF p((qreal) i, qSin(M_PI / 50 * i) * 100); | ||||
p.ry() += qrand() % 20; | ||||
*series << p; | ||||
} | ||||
//![1] | ||||
Chart *chart = new Chart(); | ||||
chart->addSeries(series); | ||||
chart->setTitle("Zoom in/out example"); | ||||
chart->setAnimationOptions(QChart::SeriesAnimations); | ||||
chart->legend()->hide(); | ||||
chart->createDefaultAxes(); | ||||
ChartView *chartView = new ChartView(chart); | ||||
chartView->setRenderHint(QPainter::Antialiasing); | ||||
QMainWindow window; | ||||
window.setCentralWidget(chartView); | ||||
window.resize(400, 300); | ||||
window.grabGesture(Qt::PanGesture); | ||||
window.grabGesture(Qt::PinchGesture); | ||||
window.show(); | ||||
return a.exec(); | ||||
} | ||||