qxyseries.cpp
333 lines
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| text/x-c
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CppLexer
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r466 | #include "qxyseries.h" | ||
QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
/*! | ||||
\class QXYSeries | ||||
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r470 | \brief The QXYSeries class is a base class for line, spline and scatter series. | ||
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r466 | */ | ||
/*! | ||||
\fn QPen QXYSeries::pen() const | ||||
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r480 | \brief Returns pen used to draw points for series. | ||
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r466 | \sa setPen() | ||
*/ | ||||
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r480 | /*! | ||
\fn QBrush QXYSeries::brush() const | ||||
\brief Returns brush used to draw points for series. | ||||
\sa setBrush() | ||||
*/ | ||||
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r574 | /*! | ||
\fn void QXYSeries::clicked(const QPointF& point) | ||||
\brief Signal is emitted when user clicks the \a point on chart. | ||||
*/ | ||||
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r466 | /*! | ||
\fn void QXYSeries::pointReplaced(int index) | ||||
\brief \internal \a index | ||||
*/ | ||||
/*! | ||||
\fn void QXYSeries::pointAdded(int index) | ||||
\brief \internal \a index | ||||
*/ | ||||
/*! | ||||
\fn void QXYSeries::pointRemoved(int index) | ||||
\brief \internal \a index | ||||
*/ | ||||
/*! | ||||
\fn void QXYSeries::updated() | ||||
\brief \internal | ||||
*/ | ||||
/*! | ||||
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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r470 | QXYSeries::QXYSeries(QObject* parent):QSeries(parent) | ||
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r466 | { | ||
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r527 | m_mapX = -1; | ||
m_mapY = -1; | ||||
m_mapOrientation = Qt::Vertical; | ||||
// m_mapYOrientation = Qt::Vertical; | ||||
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r466 | } | ||
/*! | ||||
Destroys the object. Series added to QChartView or QChart instances are owned by those, | ||||
and are deleted when mentioned object are destroyed. | ||||
*/ | ||||
QXYSeries::~QXYSeries() | ||||
{ | ||||
} | ||||
/*! | ||||
Adds data point \a x \a y to the series. Points are connected with lines on the chart. | ||||
*/ | ||||
void QXYSeries::add(qreal x,qreal y) | ||||
{ | ||||
Q_ASSERT(m_x.size() == m_y.size()); | ||||
m_x<<x; | ||||
m_y<<y; | ||||
emit pointAdded(m_x.size()-1); | ||||
} | ||||
/*! | ||||
This is an overloaded function. | ||||
Adds data \a point to the series. Points are connected with lines on the chart. | ||||
*/ | ||||
void QXYSeries::add(const QPointF& point) | ||||
{ | ||||
add(point.x(),point.y()); | ||||
} | ||||
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r481 | /*! | ||
This is an overloaded function. | ||||
Adds list of data \a points to the series. Points are connected with lines on the chart. | ||||
*/ | ||||
void QXYSeries::add(const QList<QPointF> points) | ||||
{ | ||||
foreach(const QPointF& point , points) { | ||||
add(point.x(),point.y()); | ||||
} | ||||
} | ||||
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r466 | /*! | ||
Modifies \a y value for given \a x a value. | ||||
*/ | ||||
void QXYSeries::replace(qreal x,qreal y) | ||||
{ | ||||
int index = m_x.indexOf(x); | ||||
m_x[index]=x; | ||||
m_y[index]=y; | ||||
emit pointReplaced(index); | ||||
} | ||||
/*! | ||||
This is an overloaded function. | ||||
Replaces current y value of for given \a point x value with \a point y value. | ||||
*/ | ||||
void QXYSeries::replace(const QPointF& point) | ||||
{ | ||||
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r519 | replace(point.x(),point.y()); | ||
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r466 | } | ||
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r622 | /*! | ||
Removes first \a x value and related y value. | ||||
*/ | ||||
void QXYSeries::remove(qreal x) | ||||
{ | ||||
int index = m_x.indexOf(x); | ||||
if(index==-1) return; | ||||
m_x.remove(index); | ||||
m_y.remove(index); | ||||
emit pointRemoved(index); | ||||
} | ||||
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r466 | /*! | ||
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r541 | Removes current \a x and \a y value. | ||
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r466 | */ | ||
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r541 | void QXYSeries::remove(qreal x,qreal y) | ||
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r466 | { | ||
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r541 | int index =-1; | ||
do{ | ||||
index = m_x.indexOf(x,index+1); | ||||
}while(index !=-1 && m_y.at(index)!=y); | ||||
if(index==-1) return; | ||||
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r545 | |||
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r466 | m_x.remove(index); | ||
m_y.remove(index); | ||||
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r545 | emit pointRemoved(index); | ||
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r466 | } | ||
/*! | ||||
Removes current \a point x value. Note \a point y value is ignored. | ||||
*/ | ||||
void QXYSeries::remove(const QPointF& point) | ||||
{ | ||||
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r541 | remove(point.x(),point.y()); | ||
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r466 | } | ||
/*! | ||||
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r481 | Removes all data points from the series. | ||
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r466 | */ | ||
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r481 | void QXYSeries::removeAll() | ||
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r466 | { | ||
m_x.clear(); | ||||
m_y.clear(); | ||||
} | ||||
/*! | ||||
\internal \a pos | ||||
*/ | ||||
qreal QXYSeries::x(int pos) const | ||||
{ | ||||
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r519 | if (m_model) | ||
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r527 | if (m_mapOrientation == Qt::Vertical) | ||
// consecutive data is read from model's column | ||||
return m_model->data(m_model->index(pos, m_mapX), Qt::DisplayRole).toDouble(); | ||||
else | ||||
// consecutive data is read from model's row | ||||
return m_model->data(m_model->index(m_mapX, pos), Qt::DisplayRole).toDouble(); | ||||
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r519 | else | ||
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r527 | // model is not specified, return the data from series' internal data store | ||
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r519 | return m_x.at(pos); | ||
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r466 | } | ||
/*! | ||||
\internal \a pos | ||||
*/ | ||||
qreal QXYSeries::y(int pos) const | ||||
{ | ||||
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r519 | if (m_model) | ||
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r527 | if (m_mapOrientation == Qt::Vertical) | ||
// consecutive data is read from model's column | ||||
return m_model->data(m_model->index(pos, m_mapY), Qt::DisplayRole).toDouble(); | ||||
else | ||||
// consecutive data is read from model's row | ||||
return m_model->data(m_model->index(m_mapY, pos), Qt::DisplayRole).toDouble(); | ||||
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r519 | else | ||
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r527 | // model is not specified, return the data from series' internal data store | ||
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r519 | return m_y.at(pos); | ||
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r466 | } | ||
/*! | ||||
Returns number of data points within series. | ||||
*/ | ||||
int QXYSeries::count() const | ||||
{ | ||||
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r519 | Q_ASSERT(m_x.size() == m_y.size()); | ||
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r466 | |||
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r609 | if (m_model) { | ||
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r527 | if (m_mapOrientation == Qt::Vertical) | ||
// data is in a column, so return the number of items in single column | ||||
return m_model->rowCount(); | ||||
else | ||||
// data is in a row, so return the number of items in single row | ||||
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r609 | return m_model->columnCount(); | ||
} | ||||
// model is not specified, return the number of points in the series internal data store | ||||
return m_x.size(); | ||||
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r466 | } | ||
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r491 | /*! | ||
Returns the data points of the series. | ||||
*/ | ||||
QList<QPointF> QXYSeries::data() | ||||
{ | ||||
QList<QPointF> data; | ||||
for (int i(0); i < m_x.count() && i < m_y.count(); i++) | ||||
data.append(QPointF(m_x.at(i), m_y.at(i))); | ||||
return data; | ||||
} | ||||
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r467 | /*! | ||
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r481 | Sets \a pen used for drawing points on the chart. If the pen is not defined, the | ||
pen from chart theme is used. | ||||
\sa QChart::setChartTheme() | ||||
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r467 | */ | ||
void QXYSeries::setPen(const QPen& pen) | ||||
{ | ||||
if(pen!=m_pen){ | ||||
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r470 | m_pen=pen; | ||
emit updated(); | ||||
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r467 | } | ||
} | ||||
/*! | ||||
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r481 | Sets \a brush used for drawing points on the chart. If the brush is not defined, brush | ||
from chart theme setting is used. | ||||
\sa QChart::setChartTheme() | ||||
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r467 | */ | ||
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r470 | |||
void QXYSeries::setBrush(const QBrush& brush) | ||||
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r467 | { | ||
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r470 | if(brush!=m_brush){ | ||
m_brush=brush; | ||||
emit updated(); | ||||
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r467 | } | ||
} | ||||
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r466 | /*! | ||
Stream operator for adding a data \a point to the series. | ||||
\sa add() | ||||
*/ | ||||
QXYSeries& QXYSeries::operator<< (const QPointF &point) | ||||
{ | ||||
add(point); | ||||
return *this; | ||||
} | ||||
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r481 | /*! | ||
Stream operator for adding a list of \a points to the series. | ||||
\sa add() | ||||
*/ | ||||
QXYSeries& QXYSeries::operator<< (const QList<QPointF> points) | ||||
{ | ||||
add(points); | ||||
return *this; | ||||
} | ||||
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r519 | void QXYSeries::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight) | ||
{ | ||||
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r611 | Q_UNUSED(bottomRight) | ||
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r597 | if (m_mapOrientation == Qt::Vertical) | ||
emit pointReplaced(topLeft.row()); | ||||
else | ||||
emit pointReplaced(topLeft.column()); | ||||
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r519 | } | ||
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r545 | void QXYSeries::modelDataAdded(QModelIndex parent, int start, int end) | ||
{ | ||||
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r611 | Q_UNUSED(parent) | ||
Q_UNUSED(end) | ||||
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r545 | emit pointAdded(start); | ||
} | ||||
void QXYSeries::modelDataRemoved(QModelIndex parent, int start, int end) | ||||
{ | ||||
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r611 | Q_UNUSED(parent) | ||
Q_UNUSED(end) | ||||
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r545 | emit pointRemoved(start); | ||
} | ||||
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r519 | bool QXYSeries::setModel(QAbstractItemModel* model) { | ||
m_model = model; | ||||
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r527 | // for (int i = 0; i < m_model->rowCount(); i++) | ||
// emit pointAdded(i); | ||||
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r519 | connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex))); | ||
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r545 | connect(m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), this, SLOT(modelDataAdded(QModelIndex,int,int))); | ||
connect(m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), this, SLOT(modelDataRemoved(QModelIndex,int,int))); | ||||
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r605 | return true; | ||
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r519 | } | ||
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r527 | void QXYSeries::setModelMapping(int modelX, int modelY, Qt::Orientation orientation) | ||
{ | ||||
m_mapX = modelX; | ||||
m_mapY = modelY; | ||||
m_mapOrientation = orientation; | ||||
} | ||||
//void QXYSeries::setModelMappingY(int modelLineIndex, Qt::Orientation orientation) | ||||
//{ | ||||
// m_mapY = modelLineIndex; | ||||
// m_mapYOrientation = orientation; | ||||
//} | ||||
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r466 | #include "moc_qxyseries.cpp" | ||
QTCOMMERCIALCHART_END_NAMESPACE | ||||