chartview.cpp
96 lines
| 2.9 KiB
| text/x-c
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CppLexer
Marek Rosa
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r1365 | /**************************************************************************** | ||
** | ||||
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r2776 | ** Copyright (C) 2015 The Qt Company Ltd | ||
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r1365 | ** All rights reserved. | ||
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r2776 | ** For any questions to The Qt Company, please use contact form at http://qt.io | ||
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r1365 | ** | ||
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r2740 | ** This file is part of the Qt Charts module. | ||
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r1365 | ** | ||
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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 | ||||
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r2776 | ** agreement between you and The Qt Company. | ||
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r1365 | ** | ||
** If you have questions regarding the use of this file, please use | ||||
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r2740 | ** contact form at http://qt.io | ||
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r1365 | ** | ||
****************************************************************************/ | ||||
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r1015 | #include "chartview.h" | ||
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r2714 | #include <QtCharts/QScatterSeries> | ||
#include <QtCharts/QLegendMarker> | ||||
#include <QtGui/QImage> | ||||
#include <QtGui/QPainter> | ||||
#include <QtCore/QtMath> | ||||
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r2612 | |||
const float Pi = 3.14159f; | ||||
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r1015 | |||
ChartView::ChartView(QWidget *parent) : | ||||
QChartView(new QChart(), parent) | ||||
{ | ||||
//![1] | ||||
QScatterSeries *series0 = new QScatterSeries(); | ||||
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r1226 | series0->setName("scatter1"); | ||
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r1276 | series0->setMarkerShape(QScatterSeries::MarkerShapeCircle); | ||
series0->setMarkerSize(15.0); | ||||
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QScatterSeries *series1 = new QScatterSeries(); | ||||
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r1226 | series1->setName("scatter2"); | ||
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r2612 | series1->setMarkerShape(QScatterSeries::MarkerShapeRectangle); | ||
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r1276 | series1->setMarkerSize(20.0); | ||
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r2612 | |||
QScatterSeries *series2 = new QScatterSeries(); | ||||
series2->setName("scatter3"); | ||||
series2->setMarkerShape(QScatterSeries::MarkerShapeRectangle); | ||||
series2->setMarkerSize(30.0); | ||||
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r1015 | //![1] | ||
//![2] | ||||
series0->append(0, 6); | ||||
series0->append(2, 4); | ||||
series0->append(3, 8); | ||||
series0->append(7, 4); | ||||
series0->append(10, 5); | ||||
*series1 << QPointF(1, 1) << QPointF(3, 3) << QPointF(7, 6) << QPointF(8, 3) << QPointF(10, 2); | ||||
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r2612 | *series2 << QPointF(1, 5) << QPointF(4, 6) << QPointF(6, 3) << QPointF(9, 5); | ||
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r1015 | //![2] | ||
//![3] | ||||
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r2612 | QPainterPath starPath; | ||
starPath.moveTo(30, 15); | ||||
for (int i = 1; i < 5; ++i) { | ||||
starPath.lineTo(15 + 15 * qCos(0.8 * i * Pi), | ||||
15 + 15 * qSin(0.8 * i * Pi)); | ||||
} | ||||
starPath.closeSubpath(); | ||||
QImage star(30, 30, QImage::Format_ARGB32); | ||||
star.fill(Qt::transparent); | ||||
QPainter painter(&star); | ||||
painter.setRenderHint(QPainter::Antialiasing); | ||||
painter.setPen(QRgb(0xf6a625)); | ||||
painter.setBrush(painter.pen().color()); | ||||
painter.drawPath(starPath); | ||||
series2->setBrush(star); | ||||
//![3] | ||||
//![4] | ||||
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r1015 | setRenderHint(QPainter::Antialiasing); | ||
chart()->addSeries(series0); | ||||
chart()->addSeries(series1); | ||||
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r2612 | chart()->addSeries(series2); | ||
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r1015 | chart()->setTitle("Simple scatterchart example"); | ||
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r1610 | chart()->createDefaultAxes(); | ||
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r1462 | chart()->setDropShadowEnabled(false); | ||
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r2612 | //![4] | ||
//![5] | ||||
QList<QLegendMarker *> markers = chart()->legend()->markers(series2); | ||||
for (int i = 0; i < markers.count(); i++) | ||||
markers.at(i)->setBrush(painter.pen().color()); | ||||
//![5] | ||||
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r1015 | } | ||