qlinechartseries.cpp
182 lines
| 3.6 KiB
| text/x-c
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CppLexer
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r144 | #include "qlinechartseries.h" | ||
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r21 | |||
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r30 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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r21 | |||
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r331 | /*! | ||
\class QLineChartSeries | ||||
\brief The QLineChartSeries class is used for making line charts. | ||||
\mainclass | ||||
A line chart is used to show information as a series of data points | ||||
connected by straight lines. | ||||
\image linechart.png | ||||
To create line charts, users need to first QLineChartSeries object. | ||||
\snippet ../example/linechart/main.cpp 1 | ||||
Populate with the data | ||||
\snippet ../example/linechart/main.cpp 2 | ||||
Add created series objects to QChartView or QChart instance. | ||||
\snippet ../example/linechart/main.cpp 3 | ||||
*/ | ||||
/*! | ||||
\fn virtual QChartSeriesType QLineChartSeries::type() const | ||||
\brief Returns type of series. | ||||
\sa QChartSeries, QChartSeriesType | ||||
*/ | ||||
/*! | ||||
\fn QPen QLineChartSeries::pen() const | ||||
\brief Returns the pen used to draw line for this series. | ||||
\sa setPen() | ||||
*/ | ||||
/*! | ||||
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r333 | \fn bool QLineChartSeries::isPointsVisible() const | ||
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r331 | \brief Returns if the points are drawn for this series. | ||
\sa setPointsVisible() | ||||
*/ | ||||
/*! | ||||
\fn void QLineChartSeries::changed(int index) | ||||
\brief \internal \a index | ||||
*/ | ||||
/*! | ||||
Constructs empty series object which is a child of \a parent. | ||||
When series object is added to QChartView or QChart instance ownerships is transfered. | ||||
*/ | ||||
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r185 | QLineChartSeries::QLineChartSeries(QObject* parent):QChartSeries(parent), | ||
m_pointsVisible(false) | ||||
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r21 | { | ||
} | ||||
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r331 | /*! | ||
Destroys the object. Series added to QChartView or QChart instances are owned by those, | ||||
and are deleted when mentioned object are destroyed. | ||||
*/ | ||||
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r144 | QLineChartSeries::~QLineChartSeries() | ||
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r21 | { | ||
} | ||||
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r331 | /*! | ||
Adds data point \a x \a y to the series. Points are connected with lines on the chart. | ||||
Function returns index, which can be used to modify data. | ||||
*/ | ||||
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r144 | int QLineChartSeries::add(qreal x,qreal y) | ||
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r21 | { | ||
m_x<<x; | ||||
m_y<<y; | ||||
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r131 | return m_x.size()-1; | ||
} | ||||
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r331 | /*! | ||
This is an overloaded function. | ||||
Adds data \a point to the series. Points are connected with lines on the chart. | ||||
Function returns index, which can be used to modify data. | ||||
*/ | ||||
int QLineChartSeries::add(const QPointF& point) | ||||
{ | ||||
m_x<<point.x(); | ||||
m_y<<point.y(); | ||||
return m_x.size()-1; | ||||
} | ||||
/*! | ||||
Modifies data within \a index, sets new \a x and \a y values. | ||||
*/ | ||||
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r144 | void QLineChartSeries::set(int index,qreal x,qreal y) | ||
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r131 | { | ||
m_x[index]=x; | ||||
m_y[index]=y; | ||||
emit changed(index); | ||||
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r21 | } | ||
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r331 | /*! | ||
This is an overloaded function. | ||||
Modifies data within \a index, sets new \a point value. | ||||
*/ | ||||
void QLineChartSeries::set(int index,const QPointF& point) | ||||
{ | ||||
m_x[index]=point.x(); | ||||
m_y[index]=point.y(); | ||||
emit changed(index); | ||||
} | ||||
/*! | ||||
Clears all the data. | ||||
*/ | ||||
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r144 | void QLineChartSeries::clear() | ||
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r21 | { | ||
m_x.clear(); | ||||
m_y.clear(); | ||||
} | ||||
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r331 | /*! | ||
\internal \a pos | ||||
*/ | ||||
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r144 | qreal QLineChartSeries::x(int pos) const | ||
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r21 | { | ||
return m_x.at(pos); | ||||
} | ||||
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r331 | /*! | ||
\internal \a pos | ||||
*/ | ||||
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r144 | qreal QLineChartSeries::y(int pos) const | ||
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r21 | { | ||
return m_y.at(pos); | ||||
} | ||||
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r331 | /*! | ||
Returns number of data points within series. | ||||
*/ | ||||
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r144 | int QLineChartSeries::count() const | ||
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r21 | { | ||
Q_ASSERT(m_x.size() == m_y.size()); | ||||
return m_x.size(); | ||||
} | ||||
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r331 | /*! | ||
Sets \a pen used for drawing given series.. | ||||
*/ | ||||
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r144 | void QLineChartSeries::setPen(const QPen& pen) | ||
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r85 | { | ||
m_pen=pen; | ||||
} | ||||
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r331 | /*! | ||
Sets if data points are \a visible and should be drawn on line. | ||||
*/ | ||||
void QLineChartSeries::setPointsVisible(bool visible) | ||||
{ | ||||
m_pointsVisible=visible; | ||||
} | ||||
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r144 | QDebug operator<< (QDebug debug, const QLineChartSeries series) | ||
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r21 | { | ||
Q_ASSERT(series.m_x.size() == series.m_y.size()); | ||||
int size = series.m_x.size(); | ||||
for (int i=0;i<size;i++) { | ||||
debug.nospace() << "(" << series.m_x.at(i) << ','<< series.m_y.at(i) << ") "; | ||||
} | ||||
return debug.space(); | ||||
} | ||||
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r331 | |||
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r144 | #include "moc_qlinechartseries.cpp" | ||
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r131 | |||
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r30 | QTCOMMERCIALCHART_END_NAMESPACE | ||