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Documentation for bar charts
Documentation for bar charts

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declarativepieseries.cpp
58 lines | 1.7 KiB | text/x-c | CppLexer
/ qmlplugin / declarativepieseries.cpp
Tero Ahola
Dynamic data for QML pie and line series
r215 #include "declarativepieseries.h"
#include "declarativechart.h"
#include "qchart.h"
#include "qpieseries.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
DeclarativePieSeries::DeclarativePieSeries(QDeclarativeItem *parent) :
QDeclarativeItem(parent),
m_chart(0),
m_series(0)
{
setFlag(QGraphicsItem::ItemHasNoContents, false);
connect(this, SIGNAL(parentChanged()),
this, SLOT(setParentForSeries()));
}
void DeclarativePieSeries::setParentForSeries()
{
if (!m_series) {
DeclarativeChart *declarativeChart = qobject_cast<DeclarativeChart *>(parent());
if (declarativeChart) {
QChart *chart = qobject_cast<QChart *>(declarativeChart->m_chart);
qDebug() << "creating pie series for chart: " << chart;
Q_ASSERT(chart);
m_series = new QPieSeries();
Q_ASSERT(m_series);
foreach (QPieSlice* slice, m_data) {
// Have to duplicate the data
m_series->add(slice->value(), slice->label());
}
chart->addSeries(m_series);
//chart->axisY();
}
}
}
QDeclarativeListProperty<QPieSlice> DeclarativePieSeries::data()
{
return QDeclarativeListProperty<QPieSlice>(this, 0, &DeclarativePieSeries::appendData);
}
void DeclarativePieSeries::appendData(QDeclarativeListProperty<QPieSlice> *list,
QPieSlice *slice)
{
DeclarativePieSeries *series = qobject_cast<DeclarativePieSeries *>(list->object);
if (series) {
series->m_data.append(slice);
// Have to duplicate the data
if (series->m_series)
series->m_series->add(slice->value(), slice->label());
}
}
#include "moc_declarativepieseries.cpp"
QTCOMMERCIALCHART_END_NAMESPACE