areachart.cpp
74 lines
| 2.2 KiB
| text/x-c
|
CppLexer
Michal Klocek
|
r1753 | /**************************************************************************** | ||
| ** | ||||
| ** Copyright (C) 2012 Digia Plc | ||||
| ** All rights reserved. | ||||
| ** For any questions to Digia, please use contact form at http://qt.digia.com | ||||
| ** | ||||
| ** This file is part of the Qt Commercial Charts Add-on. | ||||
| ** | ||||
| ** $QT_BEGIN_LICENSE$ | ||||
| ** Licensees holding valid Qt Commercial licenses may use this file in | ||||
| ** accordance with the Qt Commercial License Agreement provided with the | ||||
| ** Software or, alternatively, in accordance with the terms contained in | ||||
| ** a written agreement between you and Digia. | ||||
| ** | ||||
| ** If you have questions regarding the use of this file, please use | ||||
| ** contact form at http://qt.digia.com | ||||
| ** $QT_END_LICENSE$ | ||||
| ** | ||||
| ****************************************************************************/ | ||||
| #include "charts.h" | ||||
| #include "qchart.h" | ||||
| #include "qareaseries.h" | ||||
| #include "qlineseries.h" | ||||
| class AreaChart: public Chart | ||||
| { | ||||
| public: | ||||
| AreaChart(){ | ||||
| initialize(); | ||||
| } | ||||
| QString name() { return QObject::tr("AreaChart"); } | ||||
| QString category() { return QObject::tr("XYSeries"); } | ||||
| QString subCategory() { return QString::null; } | ||||
| QChart* createChart(const DataTable& table) | ||||
| { | ||||
| QChart *chart = new QChart(); | ||||
| chart->setTitle("Area chart"); | ||||
| // The lower series initialized to zero values | ||||
| QLineSeries *lowerSeries = 0; | ||||
| QString name("Series "); | ||||
| int nameIndex = 0; | ||||
| for (int i(0); i < table.count(); i++) { | ||||
| QLineSeries *upperSeries = new QLineSeries(chart); | ||||
| for (int j(0); j < table[i].count(); j++) { | ||||
| Data data = table[i].at(j); | ||||
| if (lowerSeries) { | ||||
| const QList<QPointF>& points = lowerSeries->points(); | ||||
| upperSeries->append(QPointF(j, points[i].y() + data.first.y())); | ||||
| } | ||||
| else | ||||
| upperSeries->append(QPointF(j, data.first.y())); | ||||
| } | ||||
| QAreaSeries *area = new QAreaSeries(upperSeries, lowerSeries); | ||||
| area->setName(name + QString::number(nameIndex)); | ||||
| nameIndex++; | ||||
| chart->addSeries(area); | ||||
| chart->createDefaultAxes(); | ||||
| lowerSeries = upperSeries; | ||||
| } | ||||
| return chart; | ||||
| } | ||||
| }; | ||||
| DECLARE_CHART(AreaChart) | ||||