qlinechartseries.cpp
182 lines
| 3.6 KiB
| text/x-c
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CppLexer
Michal Klocek
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r144 | #include "qlinechartseries.h" | ||
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Michal Klocek
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r21 | |||
Tero Ahola
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r30 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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r21 | |||
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Michal Klocek
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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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Michal Klocek
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r21 | { | ||
| } | ||||
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Michal Klocek
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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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Michal Klocek
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r144 | QLineChartSeries::~QLineChartSeries() | ||
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Michal Klocek
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r21 | { | ||
| } | ||||
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Michal Klocek
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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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Michal Klocek
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r144 | int QLineChartSeries::add(qreal x,qreal y) | ||
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Michal Klocek
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r21 | { | ||
| m_x<<x; | ||||
| m_y<<y; | ||||
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Michal Klocek
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r131 | return m_x.size()-1; | ||
| } | ||||
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Michal Klocek
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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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Michal Klocek
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r131 | { | ||
| m_x[index]=x; | ||||
| m_y[index]=y; | ||||
| emit changed(index); | ||||
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Michal Klocek
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r21 | } | ||
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Michal Klocek
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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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Michal Klocek
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r144 | void QLineChartSeries::clear() | ||
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Michal Klocek
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r21 | { | ||
| m_x.clear(); | ||||
| m_y.clear(); | ||||
| } | ||||
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Michal Klocek
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r331 | /*! | ||
| \internal \a pos | ||||
| */ | ||||
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Michal Klocek
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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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Michal Klocek
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r331 | /*! | ||
| Sets \a pen used for drawing given series.. | ||||
| */ | ||||
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Michal Klocek
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r144 | void QLineChartSeries::setPen(const QPen& pen) | ||
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Michal Klocek
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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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Michal Klocek
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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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Michal Klocek
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r331 | |||
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Michal Klocek
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r144 | #include "moc_qlinechartseries.cpp" | ||
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Michal Klocek
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r131 | |||
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Tero Ahola
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r30 | QTCOMMERCIALCHART_END_NAMESPACE | ||