##// END OF EJS Templates
Fixes for docs , adds xyseries docs
Fixes for docs , adds xyseries docs

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chartview.cpp
70 lines | 1.6 KiB | text/x-c | CppLexer
#include "chartview.h"
#include <qlineseries.h>
#include <qscatterseries.h>
#include <qsplineseries.h>
#include <QTime>
ChartView::ChartView(QWidget* parent):QChartView(parent),
m_index(0)
{
setChartTitle("Three random line charts");
QObject::connect(&m_timer,SIGNAL(timeout()),this,SLOT(handleTimeout()));
m_timer.setInterval(3000);
QTime now = QTime::currentTime();
qsrand((uint)now.msec());
QLineSeries* series0 = new QLineSeries(this);
QPen blue(Qt::blue);
blue.setWidth(3);
series0->setPen(blue);
QScatterSeries* series1 = new QScatterSeries(this);
QPen red(Qt::red);
red.setWidth(3);
series1->setPen(red);
series1->setBrush(Qt::white);
QSplineSeries* series2 = new QSplineSeries(this);
QPen green(Qt::green);
green.setWidth(3);
series2->setPen(green);
int numPoints = 10;
for (int x = 0; x <= numPoints; ++x) {
qreal y = qrand() % 100;
series0->add(x,y);
series1->add(x,y);
series2->add(x,y);
}
m_series<<series0;
m_titles<<chartTitle()+": LineChart";
m_series<<series1;
m_titles<<chartTitle()+": ScatterChart";
m_series<<series2;
m_titles<<chartTitle()+": SplineChart";
addSeries(series0);
setChartTitle(m_titles.at(0));
m_timer.start();
}
ChartView::~ChartView()
{
if(m_series.size()==0) return;
removeSeries(m_series.at(m_index));
qDeleteAll(m_series);
}
void ChartView::handleTimeout()
{
if(m_series.size()==0) return;
removeSeries(m_series.at(m_index));
m_index++;
m_index=m_index%m_series.size();
addSeries(m_series.at(m_index));
setChartTitle(m_titles.at(m_index));
}