|
|
#include "qpieseries.h"
|
|
|
#include "qpieslice.h"
|
|
|
#include <QDebug>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
/*!
|
|
|
\class QPieSeries
|
|
|
\brief Pie series API for QtCommercial Charts
|
|
|
|
|
|
The pie series defines a pie chart which consists of pie slices which are QPieSlice objects.
|
|
|
The slices can have any values as the QPieSeries will calculate its relative value to the sum of all slices.
|
|
|
The actual slice size is determined by that relative value.
|
|
|
|
|
|
By default the pie is defined as a full pie but it can be a partial pie.
|
|
|
This can be done by setting a starting angle and angle span to the series.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs a series object which is a child of \a parent.
|
|
|
*/
|
|
|
QPieSeries::QPieSeries(QObject *parent) :
|
|
|
QSeries(parent),
|
|
|
m_pieRelativeHorPos(0.5),
|
|
|
m_pieRelativeVerPos(0.5),
|
|
|
m_pieRelativeSize(0.7),
|
|
|
m_pieStartAngle(0),
|
|
|
m_pieEndAngle(360),
|
|
|
m_total(0)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the object. Note that adding series to QChart transfers the ownership to the chart.
|
|
|
*/
|
|
|
QPieSeries::~QPieSeries()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns QChartSeries::SeriesTypePie.
|
|
|
*/
|
|
|
QSeries::QSeriesType QPieSeries::type() const
|
|
|
{
|
|
|
return QSeries::SeriesTypePie;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets an array of \a slices to the series replacing the existing slices.
|
|
|
Slice ownership is passed to the series.
|
|
|
*/
|
|
|
void QPieSeries::replace(QList<QPieSlice*> slices)
|
|
|
{
|
|
|
clear();
|
|
|
add(slices);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Adds an array of \a slices to the series.
|
|
|
Slice ownership is passed to the series.
|
|
|
*/
|
|
|
void QPieSeries::add(QList<QPieSlice*> slices)
|
|
|
{
|
|
|
foreach (QPieSlice* s, slices) {
|
|
|
s->setParent(this);
|
|
|
m_slices << s;
|
|
|
}
|
|
|
|
|
|
updateDerivativeData();
|
|
|
|
|
|
foreach (QPieSlice* s, slices) {
|
|
|
connect(s, SIGNAL(changed()), this, SLOT(sliceChanged()));
|
|
|
connect(s, SIGNAL(clicked()), this, SLOT(sliceClicked()));
|
|
|
connect(s, SIGNAL(hoverEnter()), this, SLOT(sliceHoverEnter()));
|
|
|
connect(s, SIGNAL(hoverLeave()), this, SLOT(sliceHoverLeave()));
|
|
|
}
|
|
|
|
|
|
emit changed();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Adds a single \a slice to the series.
|
|
|
Slice ownership is passed to the series.
|
|
|
*/
|
|
|
void QPieSeries::add(QPieSlice* slice)
|
|
|
{
|
|
|
add(QList<QPieSlice*>() << slice);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Adds a single \a slice to the series and returns a reference to the series.
|
|
|
Slice ownership is passed to the series.
|
|
|
*/
|
|
|
QPieSeries& QPieSeries::operator << (QPieSlice* slice)
|
|
|
{
|
|
|
add(slice);
|
|
|
return *this;
|
|
|
}
|
|
|
|
|
|
|
|
|
/*!
|
|
|
Adds a single slice to the series with give \a value and \a name.
|
|
|
Slice ownership is passed to the series.
|
|
|
*/
|
|
|
QPieSlice* QPieSeries::add(qreal value, QString name)
|
|
|
{
|
|
|
QPieSlice* slice = new QPieSlice(value, name);
|
|
|
add(slice);
|
|
|
return slice;
|
|
|
}
|
|
|
|
|
|
void QPieSeries::insert(int i, QPieSlice* slice)
|
|
|
{
|
|
|
Q_ASSERT(i <= m_slices.count());
|
|
|
slice->setParent(this);
|
|
|
m_slices.insert(i, slice);
|
|
|
|
|
|
updateDerivativeData();
|
|
|
|
|
|
connect(slice, SIGNAL(changed()), this, SLOT(sliceChanged()));
|
|
|
connect(slice, SIGNAL(clicked()), this, SLOT(sliceClicked()));
|
|
|
connect(slice, SIGNAL(hoverEnter()), this, SLOT(sliceHoverEnter()));
|
|
|
connect(slice, SIGNAL(hoverLeave()), this, SLOT(sliceHoverLeave()));
|
|
|
|
|
|
emit changed();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Removes a single \a slice from the series and deletes the slice.
|
|
|
|
|
|
Do not reference this pointer after this call.
|
|
|
*/
|
|
|
void QPieSeries::remove(QPieSlice* slice)
|
|
|
{
|
|
|
if (!m_slices.removeOne(slice)) {
|
|
|
Q_ASSERT(0); // TODO: how should this be reported?
|
|
|
return;
|
|
|
}
|
|
|
emit changed();
|
|
|
|
|
|
updateDerivativeData();
|
|
|
|
|
|
delete slice;
|
|
|
slice = NULL;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Clears all slices from the series.
|
|
|
*/
|
|
|
void QPieSeries::clear()
|
|
|
{
|
|
|
if (m_slices.count() == 0)
|
|
|
return;
|
|
|
|
|
|
foreach (QPieSlice* s, m_slices) {
|
|
|
m_slices.removeOne(s);
|
|
|
delete s;
|
|
|
}
|
|
|
|
|
|
emit changed();
|
|
|
|
|
|
updateDerivativeData();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Counts the number of the slices in this series.
|
|
|
*/
|
|
|
int QPieSeries::count() const
|
|
|
{
|
|
|
return m_slices.count();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns a list of slices that belong to this series.
|
|
|
*/
|
|
|
QList<QPieSlice*> QPieSeries::slices() const
|
|
|
{
|
|
|
return m_slices;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the center position of the pie by \a relativeHorizontalPosition and \a relativeVerticalPosition.
|
|
|
|
|
|
The factors are relative to the chart rectangle where:
|
|
|
|
|
|
\a relativeHorizontalPosition 0.0 means the absolute left.
|
|
|
\a relativeHorizontalPosition 1.0 means the absolute right.
|
|
|
\a relativeVerticalPosition 0.0 means the absolute top.
|
|
|
\a relativeVerticalPosition 1.0 means the absolute bottom.
|
|
|
|
|
|
By default both values are 0.5 which puts the pie in the middle of the chart rectangle.
|
|
|
|
|
|
\sa pieHorizontalPosition(), pieVerticalPosition(), setPieSize()
|
|
|
*/
|
|
|
void QPieSeries::setPiePosition(qreal relativeHorizontalPosition, qreal relativeVerticalPosition)
|
|
|
{
|
|
|
if (relativeHorizontalPosition < 0.0 || relativeHorizontalPosition > 1.0 ||
|
|
|
relativeVerticalPosition < 0.0 || relativeVerticalPosition > 1.0)
|
|
|
return;
|
|
|
|
|
|
if (m_pieRelativeHorPos != relativeHorizontalPosition || m_pieRelativeVerPos != relativeVerticalPosition) {
|
|
|
m_pieRelativeHorPos = relativeHorizontalPosition;
|
|
|
m_pieRelativeVerPos = relativeVerticalPosition;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the horizontal position of the pie.
|
|
|
|
|
|
The returned value is relative to the chart rectangle where:
|
|
|
|
|
|
0.0 means the absolute left.
|
|
|
1.0 means the absolute right.
|
|
|
|
|
|
By default it is 0.5 which puts the pie in the horizontal middle of the chart rectangle.
|
|
|
|
|
|
\sa setPiePosition(), pieVerticalPosition(), setPieSize()
|
|
|
*/
|
|
|
qreal QPieSeries::pieHorizontalPosition() const
|
|
|
{
|
|
|
return m_pieRelativeHorPos;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the vertical position position of the pie.
|
|
|
|
|
|
The returned value is relative to the chart rectangle where:
|
|
|
|
|
|
0.0 means the absolute top.
|
|
|
1.0 means the absolute bottom.
|
|
|
|
|
|
By default it is 0.5 which puts the pie in the vertical middle of the chart rectangle.
|
|
|
|
|
|
\sa setPiePosition(), pieHorizontalPosition(), setPieSize()
|
|
|
*/
|
|
|
qreal QPieSeries::pieVerticalPosition() const
|
|
|
{
|
|
|
return m_pieRelativeVerPos;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the relative size of the pie.
|
|
|
|
|
|
The \a relativeSize is defined so that the 1.0 is the maximum that can fit the given chart rectangle.
|
|
|
|
|
|
Default value is 0.7.
|
|
|
|
|
|
\sa pieSize(), setPiePosition(), pieVerticalPosition(), pieHorizontalPosition()
|
|
|
*/
|
|
|
void QPieSeries::setPieSize(qreal relativeSize)
|
|
|
{
|
|
|
if (relativeSize < 0.0 || relativeSize > 1.0)
|
|
|
return;
|
|
|
|
|
|
if (m_pieRelativeSize != relativeSize) {
|
|
|
m_pieRelativeSize = relativeSize;
|
|
|
emit changed();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the relative size of the pie.
|
|
|
|
|
|
The size is defined so that the 1.0 is the maximum that can fit the given chart rectangle.
|
|
|
|
|
|
Default value is 0.7.
|
|
|
|
|
|
\sa setPieSize(), setPiePosition(), pieVerticalPosition(), pieHorizontalPosition()
|
|
|
*/
|
|
|
qreal QPieSeries::pieSize() const
|
|
|
{
|
|
|
return m_pieRelativeSize;
|
|
|
}
|
|
|
|
|
|
|
|
|
/*!
|
|
|
Sets the end angle of the pie.
|
|
|
|
|
|
Full pie is 360 degrees where 0 degrees is at 12 a'clock.
|
|
|
|
|
|
\a angle must be less than pie end angle. Default value is 0.
|
|
|
|
|
|
\sa pieStartAngle(), pieEndAngle(), setPieEndAngle()
|
|
|
*/
|
|
|
void QPieSeries::setPieStartAngle(qreal angle)
|
|
|
{
|
|
|
if (angle >= 0 && angle <= 360 && angle != m_pieStartAngle && angle <= m_pieEndAngle) {
|
|
|
m_pieStartAngle = angle;
|
|
|
updateDerivativeData();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the start angle of the pie.
|
|
|
|
|
|
Full pie is 360 degrees where 0 degrees is at 12 a'clock. Default value is 360.
|
|
|
|
|
|
\sa setPieStartAngle(), pieEndAngle(), setPieEndAngle()
|
|
|
*/
|
|
|
qreal QPieSeries::pieStartAngle() const
|
|
|
{
|
|
|
return m_pieStartAngle;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the end angle of the pie.
|
|
|
|
|
|
Full pie is 360 degrees where 0 degrees is at 12 a'clock.
|
|
|
|
|
|
\a angle must be greater than start angle.
|
|
|
|
|
|
\sa pieEndAngle(), pieStartAngle(), setPieStartAngle()
|
|
|
*/
|
|
|
void QPieSeries::setPieEndAngle(qreal angle)
|
|
|
{
|
|
|
if (angle >= 0 && angle <= 360 && angle != m_pieEndAngle && angle >= m_pieStartAngle) {
|
|
|
m_pieEndAngle = angle;
|
|
|
updateDerivativeData();
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the end angle of the pie.
|
|
|
|
|
|
Full pie is 360 degrees where 0 degrees is at 12 a'clock.
|
|
|
|
|
|
\sa setPieEndAngle(), pieStartAngle(), setPieStartAngle()
|
|
|
*/
|
|
|
qreal QPieSeries::pieEndAngle() const
|
|
|
{
|
|
|
return m_pieEndAngle;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the all the slice labels \a visible or invisible.
|
|
|
|
|
|
\sa QPieSlice::isLabelVisible(), QPieSlice::setLabelVisible()
|
|
|
*/
|
|
|
void QPieSeries::setLabelsVisible(bool visible)
|
|
|
{
|
|
|
foreach (QPieSlice* s, m_slices)
|
|
|
s->setLabelVisible(visible);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the sum of all slice values in this series.
|
|
|
|
|
|
\sa QPieSlice::value(), QPieSlice::setValue()
|
|
|
*/
|
|
|
qreal QPieSeries::total() const
|
|
|
{
|
|
|
return m_total;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSeries::changed()
|
|
|
|
|
|
This signal emitted when something has changed in the series.
|
|
|
|
|
|
\sa QPieSeries::ChangeSet, QPieSlice::changed()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSeries::clicked(QPieSlice* slice)
|
|
|
|
|
|
This signal is emitted when a \a slice has been clicked.
|
|
|
|
|
|
\sa QPieSlice::clicked()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSeries::hoverEnter(QPieSlice* slice)
|
|
|
|
|
|
This signal is emitted when user has hovered over a \a slice.
|
|
|
|
|
|
\sa QPieSlice::hoverEnter()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QPieSeries::hoverLeave(QPieSlice* slice)
|
|
|
|
|
|
This signal is emitted when user has hovered away from a \a slice.
|
|
|
|
|
|
\sa QPieSlice::hoverLeave()
|
|
|
*/
|
|
|
|
|
|
void QPieSeries::sliceChanged()
|
|
|
{
|
|
|
QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
|
|
|
Q_ASSERT(m_slices.contains(slice));
|
|
|
updateDerivativeData();
|
|
|
}
|
|
|
|
|
|
void QPieSeries::sliceClicked()
|
|
|
{
|
|
|
QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
|
|
|
Q_ASSERT(m_slices.contains(slice));
|
|
|
emit clicked(slice);
|
|
|
}
|
|
|
|
|
|
void QPieSeries::sliceHoverEnter()
|
|
|
{
|
|
|
QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
|
|
|
Q_ASSERT(m_slices.contains(slice));
|
|
|
emit hoverEnter(slice);
|
|
|
}
|
|
|
|
|
|
void QPieSeries::sliceHoverLeave()
|
|
|
{
|
|
|
QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
|
|
|
Q_ASSERT(m_slices.contains(slice));
|
|
|
emit hoverLeave(slice);
|
|
|
}
|
|
|
|
|
|
void QPieSeries::updateDerivativeData()
|
|
|
{
|
|
|
m_total = 0;
|
|
|
|
|
|
// nothing to do?
|
|
|
if (m_slices.count() == 0)
|
|
|
return;
|
|
|
|
|
|
// calculate total
|
|
|
foreach (QPieSlice* s, m_slices)
|
|
|
m_total += s->value();
|
|
|
|
|
|
// TODO: emit totalChanged?
|
|
|
|
|
|
// we must have some values
|
|
|
if (m_total == 0) {
|
|
|
qDebug() << "QPieSeries::updateDerivativeData() total == 0";
|
|
|
Q_ASSERT(m_total > 0); // TODO: is this the correct way to handle this?
|
|
|
}
|
|
|
|
|
|
// update slice attributes
|
|
|
qreal sliceAngle = m_pieStartAngle;
|
|
|
qreal pieSpan = m_pieEndAngle - m_pieStartAngle;
|
|
|
QVector<QPieSlice*> changed;
|
|
|
foreach (QPieSlice* s, m_slices) {
|
|
|
|
|
|
bool isChanged = false;
|
|
|
|
|
|
qreal percentage = s->value() / m_total;
|
|
|
if (s->m_percentage != percentage) {
|
|
|
s->m_percentage = percentage;
|
|
|
isChanged = true;
|
|
|
}
|
|
|
|
|
|
qreal sliceSpan = pieSpan * percentage;
|
|
|
if (s->m_angleSpan != sliceSpan) {
|
|
|
s->m_angleSpan = sliceSpan;
|
|
|
isChanged = true;
|
|
|
}
|
|
|
|
|
|
if (s->m_startAngle != sliceAngle) {
|
|
|
s->m_startAngle = sliceAngle;
|
|
|
isChanged = true;
|
|
|
}
|
|
|
sliceAngle += sliceSpan;
|
|
|
|
|
|
if (isChanged)
|
|
|
changed << s;
|
|
|
}
|
|
|
|
|
|
foreach (QPieSlice* s, changed)
|
|
|
emit s->changed();
|
|
|
}
|
|
|
|
|
|
bool QPieSeries::setModel(QAbstractItemModel* model)
|
|
|
{
|
|
|
// disconnect signals from old model
|
|
|
if(m_model)
|
|
|
{
|
|
|
disconnect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), 0, 0);
|
|
|
disconnect(m_model,SIGNAL(rowsInserted(QModelIndex, int, int)), 0, 0);
|
|
|
disconnect(m_model, SIGNAL(rowsRemoved(QModelIndex, int, int)), 0, 0);
|
|
|
}
|
|
|
|
|
|
// set new model if not NULL and connect necessary signals from it
|
|
|
if(model)
|
|
|
{
|
|
|
m_model = model;
|
|
|
connect(m_model,SIGNAL(dataChanged(QModelIndex,QModelIndex)), this, SLOT(modelUpdated(QModelIndex, QModelIndex)));
|
|
|
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)));
|
|
|
}
|
|
|
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
void QPieSeries::setModelMapping(int modelValuesLine, int modelLabelsLine, Qt::Orientation orientation)
|
|
|
{
|
|
|
m_mapValues = modelValuesLine;
|
|
|
m_mapLabels = modelLabelsLine;
|
|
|
m_mapOrientation = orientation;
|
|
|
|
|
|
if (m_model == NULL)
|
|
|
return;
|
|
|
|
|
|
if (m_mapOrientation == Qt::Vertical)
|
|
|
for (int i = 0; i < m_model->rowCount(); i++)
|
|
|
add(m_model->data(m_model->index(i, m_mapValues), Qt::DisplayRole).toDouble(), m_model->data(m_model->index(i, m_mapLabels), Qt::DisplayRole).toString());
|
|
|
else
|
|
|
for (int i = 0; i < m_model->columnCount(); i++)
|
|
|
add(m_model->data(m_model->index(m_mapValues, i), Qt::DisplayRole).toDouble(), m_model->data(m_model->index(m_mapLabels, i), Qt::DisplayRole).toString());
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
void QPieSeries::modelUpdated(QModelIndex topLeft, QModelIndex bottomRight)
|
|
|
{
|
|
|
Q_UNUSED(bottomRight)
|
|
|
|
|
|
if (m_mapOrientation == Qt::Vertical)
|
|
|
{
|
|
|
// slices().at(topLeft.row())->setValue(m_model->data(m_model->index(topLeft.row(), topLeft.column()), Qt::DisplayRole).toDouble());
|
|
|
if (topLeft.column() == m_mapValues)
|
|
|
slices().at(topLeft.row())->setValue(m_model->data(topLeft, Qt::DisplayRole).toDouble());
|
|
|
else if (topLeft.column() == m_mapLabels)
|
|
|
slices().at(topLeft.row())->setLabel(m_model->data(topLeft, Qt::DisplayRole).toString());
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
// slices().at(topLeft.column())->setValue(m_model->data(m_model->index(topLeft.row(), topLeft.column()), Qt::DisplayRole).toDouble());
|
|
|
if (topLeft.column() == m_mapValues)
|
|
|
slices().at(topLeft.column())->setValue(m_model->data(topLeft, Qt::DisplayRole).toDouble());
|
|
|
else if (topLeft.column() == m_mapLabels)
|
|
|
slices().at(topLeft.column())->setLabel(m_model->data(topLeft, Qt::DisplayRole).toString());
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QPieSeries::modelDataAdded(QModelIndex parent, int start, int end)
|
|
|
{
|
|
|
Q_UNUSED(parent)
|
|
|
Q_UNUSED(end)
|
|
|
|
|
|
QPieSlice* newSlice = new QPieSlice;
|
|
|
newSlice->setLabelVisible(true);
|
|
|
if (m_mapOrientation == Qt::Vertical)
|
|
|
{
|
|
|
newSlice->setValue(m_model->data(m_model->index(start, m_mapValues), Qt::DisplayRole).toDouble());
|
|
|
newSlice->setLabel(m_model->data(m_model->index(start, m_mapLabels), Qt::DisplayRole).toString());
|
|
|
}
|
|
|
else
|
|
|
{
|
|
|
newSlice->setValue(m_model->data(m_model->index(m_mapValues, start), Qt::DisplayRole).toDouble());
|
|
|
newSlice->setLabel(m_model->data(m_model->index(m_mapLabels, start), Qt::DisplayRole).toString());
|
|
|
}
|
|
|
|
|
|
insert(start, newSlice);
|
|
|
}
|
|
|
|
|
|
void QPieSeries::modelDataRemoved(QModelIndex parent, int start, int end)
|
|
|
{
|
|
|
Q_UNUSED(parent)
|
|
|
Q_UNUSED(end)
|
|
|
remove(slices().at(start));
|
|
|
}
|
|
|
|
|
|
#include "moc_qpieseries.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
