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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
// Qt-Security score:significant reason:default
#include <QtGraphs/qpieseries.h>
#include <private/qpieseries_p.h>
#include <QtGraphs/qpieslice.h>
#include <private/qpieslice_p.h>
#include <private/qgraphsview_p.h>
#include <qtgraphs_tracepoints_p.h>
QT_BEGIN_NAMESPACE
Q_TRACE_PREFIX(qtgraphs,
"QT_BEGIN_NAMESPACE" \
"class QPieSeries;" \
"QT_END_NAMESPACE"
)
Q_TRACE_POINT(qtgraphs, QGraphs2DPieSeriesUpdateData_entry);
Q_TRACE_POINT(qtgraphs, QGraphs2DPieSeriesUpdateData_exit);
/*!
\class QPieSeries
\inmodule QtGraphs
\ingroup graphs_2D
\brief The QPieSeries class presents data in pie graphs.
A pie series consists of slices that are defined as QPieSlice objects.
The slices can have any values as the QPieSeries object calculates
the percentage of a slice compared with the sum of all slices in the series
to determine the actual size of the slice in the graph.
Pie size and position on the graph are controlled by using relative values
that range from 0.0 to 1.0.
These relate to the actual graph rectangle.
By default, the pie is defined as a full pie. A partial pie can be created
by setting a starting angle and angle span for the series.
A full pie is 360 degrees, where 0 is at 12 a'clock.
\sa QPieSlice
*/
/*!
\qmltype PieSeries
\nativetype QPieSeries
\inqmlmodule QtGraphs
\ingroup graphs_qml_2D
\inherits AbstractSeries
\brief Presents data in pie graphs.
A pie series consists of slices that are defined using the PieSlice type.
The slices can have any values as the PieSeries type calculates
the percentage of a slice compared with the sum of all slices in the series
to determine the actual size of the slice in the graph.
Pie size and position on the graph are controlled by using relative values
that range from 0.0 to 1.0.
These relate to the actual graph rectangle.
By default, the pie is defined as a full pie. A partial pie can be created
by setting a starting angle and angle span for the series.
A full pie is 360 degrees, where 0 is at 12 o'clock.
The following QML example shows how to create a simple pie graph.
\qml
import QtQuick
import QtGraphs
Item {
id: mainView
width: 1280
height: 720
GraphsView {
anchors.fill: parent
theme: GraphsTheme {
colorScheme: GraphsTheme.ColorScheme.Dark
theme: GraphsTheme.Theme.QtGreen
}
PieSeries {
id: pieSeries
PieSlice {
value: 1
}
PieSlice {
value: 2
}
}
}
}
\endqml
\sa PieSlice, GraphsView
*/
/*!
\property QPieSeries::horizontalPosition
\brief The horizontal position of the pie.
The value is relative to the graph rectangle, so that:
\list
\li 0.0 is the absolute left.
\li 1.0 is the absolute right.
\endlist
The default value is 0.5 (center).
\sa verticalPosition
*/
/*!
\qmlproperty real PieSeries::horizontalPosition
The horizontal position of the pie.
The value is relative to the graph rectangle, so that:
\list
\li 0.0 is the absolute left.
\li 1.0 is the absolute right.
\endlist
The default value is 0.5 (center).
\sa verticalPosition
*/
/*!
\qmlsignal PieSeries::horizontalPositionChanged()
This signal is emitted when the horizontal position changes.
\sa horizontalPosition
*/
/*!
\property QPieSeries::verticalPosition
\brief The vertical position of the pie.
The value is relative to the graph rectangle, so that:
\list
\li 0.0 is the absolute top.
\li 1.0 is the absolute bottom.
\endlist
The default value is 0.5 (center).
\sa horizontalPosition
*/
/*!
\qmlproperty real PieSeries::verticalPosition
The vertical position of the pie.
The value is relative to the graph rectangle, so that:
\list
\li 0.0 is the absolute top.
\li 1.0 is the absolute bottom.
\endlist
The default value is 0.5 (center).
\sa horizontalPosition
*/
/*!
\qmlsignal PieSeries::verticalPositionChanged()
This signal is emitted when the vertical position changes.
\sa verticalPosition
*/
/*!
\property QPieSeries::pieSize
\brief The pie size.
The value is relative to the graph rectangle, so that:
\list
\li 0.0 is the minimum pieSize (pie not drawn).
\li 1.0 is the maximum pieSize that can fit the graph.
\endlist
When setting this property, the holeSize property is adjusted if necessary,
to ensure that the hole size is not greater than the pie size.
The default value is 0.7.
*/
/*!
\qmlproperty real PieSeries::pieSize
The pie size.
The value is relative to the graph rectangle, so that:
\list
\li 0.0 is the minimum pieSize (pie not drawn).
\li 1.0 is the maximum pieSize that can fit the graph.
\endlist
When setting this property, the holeSize property is adjusted if necessary,
to ensure that the hole size is not greater than the pie size.
The default value is 0.7.
*/
/*!
\qmlsignal PieSeries::pieSizeChanged()
This signal is emitted when the pie size changes.
\sa pieSize
*/
/*!
\property QPieSeries::holeSize
\brief The donut hole size.
When setting the \l pieSize property, this property is adjusted if necessary,
to ensure that the hole size is not greater than the pie size.
The default value is 0.0.
*/
/*!
\qmlproperty real PieSeries::holeSize
The donut hole size.
When setting the \l pieSize property, this property is adjusted if necessary,
to ensure that the hole size is not greater than the pie size.
The default value is 0.0.
*/
/*!
\qmlsignal PieSeries::holeSizeChanged()
This signal is emitted when the donut hole size changes.
\sa holeSize
*/
/*!
\property QPieSeries::startAngle
\brief The starting angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
The default value is 0.
*/
/*!
\qmlproperty real PieSeries::startAngle
The starting angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
The default value is 0.
*/
/*!
\qmlsignal PieSeries::startAngleChanged()
This signal is emitted when the pie start angle changes.
\sa startAngle
*/
/*!
\property QPieSeries::endAngle
\brief The ending angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
The default value is 360.
*/
/*!
\qmlproperty real PieSeries::endAngle
The ending angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
The default value is 360.
*/
/*!
\qmlsignal PieSeries::endAngleChanged()
This signal is emitted when the pie end angle changes.
\sa endAngle
*/
/*!
\property QPieSeries::count
\brief The number of slices in the series.
*/
/*!
\qmlproperty int PieSeries::count
The number of slices in the series.
*/
/*!
\qmlsignal PieSeries::countChanged()
This signal is emitted when the slice count changes.
\sa count
*/
/*!
\property QPieSeries::sum
\brief The sum of all slices.
The series keeps track of the sum of all the slices it holds.
*/
/*!
\qmlproperty real PieSeries::sum
The sum of all slices.
The series keeps track of the sum of all the slices it holds.
*/
/*!
\property QPieSeries::angleSpanVisibleLimit
\since 6.10
\brief The angle span limit for label visibility.
The angle span that will be used as the visibility limit for a slice label. A slice with
angle span under this value will change its visibility based on the \l angleSpanLabelVisibility
set to the series. The default value is \c {0}, which means no slices will be hidden
regardless of the \l {angleSpanLabelVisibility}.
\sa QPieSeries::angleSpanLabelVisibility
*/
/*!
\qmlproperty real PieSeries::angleSpanVisibleLimit
\since 6.10
The angle span limit for label visibility.
The angle span that will be used as the visibility limit for a slice label. A slice with
angle span under this value will change its visibility based on the \l angleSpanLabelVisibility
set to the series. The default value is \c {0}, which means no slices will be hidden
regardless of the \l {angleSpanLabelVisibility}.
\sa angleSpanLabelVisibility
*/
/*!
\property QPieSeries::angleSpanLabelVisibility
\since 6.10
\brief The mode for label visibility.
The mode which determines which labels will be hidden if they are under the angle span limit
set with \l {angleSpanVisibleLimit}. Has no effect if \l angleSpanVisibleLimit has not been
set.
\sa QPieSeries::angleSpanVisibleLimit
*/
/*!
\qmlproperty enumeration PieSeries::angleSpanLabelVisibility
\since 6.10
The mode for label visibility.
The mode which determines which labels will be hidden if they are under the angle span limit
set with \l {angleSpanVisibleLimit}. Has no effect if \l angleSpanVisibleLimit has not been
set.
\value PieSeries.LabelVisibility.None
All of the labels of slices with smaller angle span than the \l angleSpanVisibleLimit
will be hidden.
\value PieSeries.LabelVisibility.First
All except the first label of consecutive slices with smaller angle span than
the \l angleSpanVisibleLimit will be hidden. This is the default value.
\value PieSeries.LabelVisibility.Even
Every other label of consecutive slices with smaller angle span than
the \l angleSpanVisibleLimit will be hidden, starting from the second one.
\value PieSeries.LabelVisibility.Odd
Every other label of consecutive slices with smaller angle span than
the \l angleSpanVisibleLimit will be hidden, starting from the first one.
\sa angleSpanVisibleLimit
*/
/*!
\property QPieSeries::sliceData
\since 6.12
\brief Declarative slice values.
Set this property to create pie slices declaratively. The series
automatically creates one slice per value. Labels can be supplied
via \l sliceLabels.
\note Mixing declarative and imperative data input is not supported.
\sa sliceLabels
*/
/*!
\qmlproperty list<real> PieSeries::sliceData
\since 6.12
\brief Declarative slice values.
This property can be used to give values declaratively to pie slices.
When the property is set, the pieseries will automatically create a pie slice
for each value. The Labels for the slices can be given in \l {sliceLabels}.
\note Mixing declarative and imperative data input is not supported.
\sa sliceLabels
*/
/*!
\property QPieSeries::sliceLabels
\since 6.12
\brief Declarative slice labels.
Provides labels for slices created via \l sliceData. Labels must be
in the same order as the values. Extra labels beyond the number of
slices are ignored.
\note Mixing declarative and imperative data input is not supported.
\sa sliceData
*/
/*!
\qmlproperty list<string> PieSeries::sliceLabels
\since 6.12
\brief Declarative slice labels.
This property can be used to give labels declaratively to pie slices.
When the property is set, the pieseries sets labels for the declaratively
created pie slices. The labels should be in the same order as the values in
\l {sliceData}. If there is not enough declarative pie slices, the rest of the
labels are ignored.
\note Mixing declarative and imperative data input is not supported.
\sa sliceData
*/
/*!
\enum QPieSeries::LabelVisibility
\since 6.10
The mode for label visibility.
\value None
All of the labels of slices with smaller angle span than the \l angleSpanVisibleLimit
will be hidden.
\value First
All except the first label of consecutive slices with smaller angle span than
the \l angleSpanVisibleLimit will be hidden. This is the default value.
\value Even
Every other label of consecutive slices with smaller angle span than
the \l angleSpanVisibleLimit will be hidden, starting from the second one.
\value Odd
Every other label of consecutive slices with smaller angle span than
the \l angleSpanVisibleLimit will be hidden, starting from the first one.
\sa QPieSeries::angleSpanVisibleLimit
*/
/*!
\qmlsignal PieSeries::sumChanged()
This signal is emitted when the sum of all slices changes.
\sa sum
*/
/*!
\fn void QPieSeries::added(const QList<QPieSlice *> &slices)
This signal is emitted when the slices specified by \a slices are added to the series.
\sa append()
*/
/*!
\qmlsignal PieSeries::added(list<PieSlice> slices)
This signal is emitted when the slices specified by \a slices are added to the series.
*/
/*!
\fn void QPieSeries::removed(const QList<QPieSlice *> &slices)
This signal is emitted when the slices specified by \a slices are removed from the series.
\sa remove()
*/
/*!
\qmlsignal PieSeries::removed(list<PieSlice> slices)
This signal is emitted when the slices specified by \a slices are removed from the series.
*/
/*!
\qmlmethod PieSlice PieSeries::at(int index)
Returns the slice at the position specified by \a index. Returns null if the
index is not valid.
*/
/*!
\qmlmethod PieSlice PieSeries::find(string label)
Returns the first slice that has the label \a label. Returns null if the label
is not found.
*/
/*!
\qmlmethod PieSlice PieSeries::append(string label, real value)
Adds a new slice with the label \a label and the value \a value to the pie.
*/
/*!
\qmlmethod bool PieSeries::remove(PieSlice slice)
Removes the slice specified by \a slice from the pie. Returns \c true if the
removal was successful, \c false otherwise.
*/
/*!
\qmlmethod bool PieSeries::replace(int index, PieSlice slice)
Replaces the slice specified by \a slice from the pie at \a index. Returns \c true if the
replace was successful, \c false otherwise.
*/
/*!
\qmlmethod void PieSeries::clear()
Removes all slices from the pie.
*/
/*!
\qmlmethod void PieSeries::removeMultiple(int index, int count)
Removes a range of slices as specified by the \a index and \a count. The call
traverses over all slices even if removal of one fails.
*/
/*!
\qmlmethod bool PieSeries::remove(int index)
Removes the slice specified by \a index from the pie. Returns \c true if the
removal was successful, \c false otherwise.
*/
/*!
\qmlmethod bool PieSeries::replace(PieSlice oldSlice, PieSlice newSlice)
Replaces the slice specified by \a oldSlice with newSlice. Returns \c true if the
removal was successful, \c false otherwise. \a oldSlice is destroyed if this
is successful.
*/
/*!
\qmlmethod bool PieSeries::replace(list<PieSlice> slices)
Completely replaces all current slices with \a slices. The size does not need
to match. Returns false if any of the PieSlice in \a slices is invalid.
*/
/*!
\qmlmethod bool PieSeries::take(PieSlice slice)
Takes a single slice, specified by \a slice, from the series. Does not delete
the slice object. Returns \c true if successful.
*/
/*!
\qmlsignal PieSeries::clicked(PieSlice slice)
This signal is emitted when the \a slice is clicked or tapped.
*/
/*!
\qmlsignal PieSeries::doubleClicked(PieSlice slice)
This signal is emitted when the \a slice is double-clicked or double-tapped.
This signal always occurs after \l clicked.
*/
/*!
\qmlsignal PieSeries::pressed(PieSlice slice)
This signal is emitted when the user clicks or taps the \a slice
and holds down the mouse button or gesture.
*/
/*!
\qmlsignal PieSeries::released(PieSlice slice)
This signal is emitted when the user releases a previously pressed mouse button
or gesture on the \a slice.
*/
/*!
\qmlsignal PieSeries::angleSpanVisibleLimitChanged(real limit)
\since 6.10
This signal is emitted when the angle span limit has been changed.
The \a limit parameter holds the new limit.
*/
/*!
\qmlsignal PieSeries::angleSpanLabelVisibilityChanged(LabelVisibility visibility)
\since 6.10
This signal is emitted when the angle span limit visible mode has been changed.
The \a visibility parameter holds the new visible mode.
*/
/*!
\qmlsignal PieSeries::sliceDataChanged(list<real> sliceData)
\since 6.12
This signal is emitted when the slice data has been changed.
The \a sliceData parameter holds the slice data.
*/
/*!
\qmlsignal PieSeries::sliceLabelsChanged(list<string> sliceLabels)
\since 6.12
This signal is emitted when the slice data has been changed.
The \a sliceLabels parameter holds the slice data.
*/
/*!
Constructs a series object that is a child of \a parent.
*/
QPieSeries::QPieSeries(QObject *parent)
: QAbstractSeries(*(new QPieSeriesPrivate()), parent)
{}
QPieSeries::~QPieSeries() {}
/*!
\reimp
Returns the type of the series.
*/
QAbstractSeries::SeriesType QPieSeries::type() const
{
return QAbstractSeries::SeriesType::Pie;
}
/*!
Returns the PieSlice at the position \a index. Returns null if no PieSlice was found.
*/
QPieSlice *QPieSeries::at(qsizetype index)
{
QList<QPieSlice *> sliceList = slices();
if (index >= 0 && index < sliceList.size())
return sliceList[index];
return 0;
}
/*!
Searches for a PieSlice which contains the label \a label. Returns the PieSlice if found, null otherwise.
*/
QPieSlice *QPieSeries::find(const QString &label)
{
auto slicelist = slices();
for (QPieSlice *slice : std::as_const(slicelist)) {
if (slice->label() == label)
return slice;
}
return 0;
}
/*!
Replaces the PieSlice at position \a index with the one specified by \a slice.
The original PieSlice will be permanently deleted. Returns \c false if replacing
any of the PieSlices fails.
*/
bool QPieSeries::replace(qsizetype index, QPieSlice *slice)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
if (index < 0)
index = 0;
if (!slice || d->m_slices.contains(slice))
return false;
if (slice->series()) // already added to some series
return false;
if (qIsNaN(slice->value()) || qIsInf(slice->value()))
return false;
if (d->m_slices.size() <= index)
return false;
emit removed(QList<QPieSlice *>() << d->m_slices[index]);
delete d->m_slices[index];
slice->setParent(this);
slice->d_func()->updateSeries(this);
d->m_slices[index] = slice;
d->updateData();
QObject::connect(slice, SIGNAL(sliceChanged()), this, SLOT(handleSliceChange()));
emit replaced(QList<QPieSlice *>() << slice);
return true;
}
/*!
Removes multiple PieSlices from the series starting from \a index to a number of \a count.
The PieSlices will be permanently deleted.
*/
void QPieSeries::removeMultiple(qsizetype index, int count)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
d->removeMultiple(index, count);
}
/*!
Removes the PieSlice at the location \a index. The PieSlice will be permanently deleted.
Returns \c true if removing is successful.
*/
bool QPieSeries::remove(qsizetype index)
{
Q_D(QPieSeries);
if (index >= d->m_slices.size())
return false;
if (index < 0)
return false;
return remove(d->m_slices[index]);
}
/*!
Replaces the PieSlice \a oldSlice with \a newSlice if found in the series.\a oldSlice will
be permanently deleted. Returns \c true if replacing is successful.
*/
bool QPieSeries::replace(QPieSlice *oldSlice, QPieSlice *newSlice)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
if (!oldSlice || !newSlice)
return false;
if (oldSlice == newSlice)
return false;
if (d->m_slices.contains(newSlice))
return false;
if (newSlice->series())
return false;
if (qIsNaN(newSlice->value()) || qIsInf(newSlice->value()))
return false;
for (int i = 0; i < d->m_slices.size(); ++i) {
if (d->m_slices[i] == oldSlice) {
emit removed(QList<QPieSlice *>() << d->m_slices[i]);
delete d->m_slices[i];
newSlice->setParent(this);
newSlice->d_func()->updateSeries(this);
d->m_slices[i] = newSlice;
d->updateData();
QObject::connect(newSlice, SIGNAL(sliceChanged()), this, SLOT(handleSliceChange()));
emit replaced(QList<QPieSlice *>() << newSlice);
return true;
}
}
return false;
}
/*!
Replaces the entire list of PieSlices in the series with the list specified by \a slices.
All the original PieSlices will be permanently deleted. Returns \c true if all PieSlices are
replaced successfully.
*/
bool QPieSeries::replace(const QList<QPieSlice *> &slices)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
for (const auto slice : slices) {
if (!slice || d->m_slices.contains(slice))
return false;
if (slice->series())
return false;
if (qIsNaN(slice->value()) || qIsInf(slice->value()))
return false;
}
emit removed(d->m_slices);
for (auto &slice : d->m_slices) {
delete slice;
slice = nullptr;
}
for (auto &slice : slices) {
slice->setParent(this);
slice->d_func()->updateSeries(this);
QObject::connect(slice, SIGNAL(sliceChanged()), this, SLOT(handleSliceChange()));
}
d->m_slices = slices;
emit replaced(slices);
return true;
}
/*!
Appends the slice specified by \a slice to the series.
Slice ownership is passed to the series.
Returns \c true if appending succeeds.
*/
bool QPieSeries::append(QPieSlice *slice)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
return d->appendImperative(QList<QPieSlice *>() << slice);
}
/*!
Appends the array of slices specified by \a slices to the series.
Slice ownership is passed to the series.
Returns \c true if appending succeeds.
*/
bool QPieSeries::append(const QList<QPieSlice *> &slices)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
return d->appendImperative(slices);
}
/*!
Appends the slice specified by \a slice to the series and returns a reference to the series.
Slice ownership is passed to the series.
*/
QPieSeries &QPieSeries::operator << (QPieSlice *slice)
{
append(slice);
return *this;
}
/*!
Appends a single slice with the specified \a value and \a label to the series.
Slice ownership is passed to the series.
Returns null if \a value is \c NaN, \c Inf, or \c -Inf and adds nothing to the
series.
*/
QPieSlice *QPieSeries::append(const QString &label, qreal value)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return nullptr;
}
if (!(qIsNaN(value) || qIsInf(value))) {
QPieSlice *slice = new QPieSlice(label, value);
append(slice);
return slice;
} else {
return nullptr;
}
}
/*!
Inserts the slice specified by \a slice to the series before the slice at
the position specified by \a index.
Slice ownership is passed to the series.
Returns \c true if inserting succeeds.
*/
bool QPieSeries::insert(qsizetype index, QPieSlice *slice)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
if (index < 0 || index > d->m_slices.size())
return false;
if (!slice || d->m_slices.contains(slice))
return false;
if (slice->series()) // already added to some series
return false;
if (qIsNaN(slice->value()) || qIsInf(slice->value()))
return false;
slice->setParent(this);
slice->d_func()->updateSeries(this);
d->m_slices.insert(index, slice);
d->updateData();
connect(slice, SIGNAL(sliceChanged()), this, SLOT(handleSliceChange()));
emit added(QList<QPieSlice *>() << slice);
emit countChanged();
return true;
}
/*!
Removes a single slice, specified by \a slice, from the series and deletes it
permanently.
The pointer cannot be referenced after this call.
Returns \c true if the removal succeeds.
*/
bool QPieSeries::remove(QPieSlice *slice)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
if (!d->m_slices.removeOne(slice))
return false;
d->updateData();
emit removed(QList<QPieSlice *>() << slice);
emit countChanged();
delete slice;
slice = 0;
return true;
}
/*!
Takes a single slice, specified by \a slice, from the series. Does not delete
the slice object.
\note The series remains the slice's parent object. You must set the
parent object to take full ownership.
Returns \c true if the take operation was successful.
*/
bool QPieSeries::take(QPieSlice *slice)
{
Q_D(QPieSeries);
if (d->dataInput() == QPieSeriesPrivate::DataInput::Declarative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return false;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Imperative);
if (!d->m_slices.removeOne(slice))
return false;
slice->d_func()->updateSeries(nullptr);
slice->disconnect(this);
d->updateData();
emit removed(QList<QPieSlice *>() << slice);
emit countChanged();
return true;
}
/*!
Clears all slices from the series.
*/
void QPieSeries::clear()
{
Q_D(QPieSeries);
d->m_sliceData.clear();
d->m_sliceLabels.clear();
d->setDataInput(QPieSeriesPrivate::DataInput::Unset);
if (d->m_slices.size() == 0)
return;
QList<QPieSlice *> slices = d->m_slices;
for (QPieSlice *s : std::as_const(d->m_slices))
d->m_slices.removeOne(s);
d->updateData();
emit removed(slices);
emit countChanged();
for (QPieSlice *s : std::as_const(slices))
delete s;
}
/*!
Returns a list of slices that belong to this series.
*/
QList<QPieSlice *> QPieSeries::slices() const
{
Q_D(const QPieSeries);
return d->m_slices;
}
/*!
Returns the number of the slices in this series.
*/
qsizetype QPieSeries::count() const
{
Q_D(const QPieSeries);
return d->m_slices.size();
}
/*!
Returns \c true if the series is empty.
*/
bool QPieSeries::isEmpty() const
{
Q_D(const QPieSeries);
return d->m_slices.isEmpty();
}
/*!
Returns the sum of all slice values in this series.
\sa QPieSlice::value(), QPieSlice::setValue(), QPieSlice::percentage()
*/
qreal QPieSeries::sum() const
{
Q_D(const QPieSeries);
return d->m_sum;
}
void QPieSeries::setHorizontalPosition(qreal relativePosition)
{
Q_D(QPieSeries);
if (relativePosition < 0.0)
relativePosition = 0.0;
if (relativePosition > 1.0)
relativePosition = 1.0;
if (qFuzzyCompare(d->m_pieRelativeHorPos + 1, relativePosition + 1)) {
qCDebug(lcProperties2D, "QPieSeries::setHorizontalPosition. Position is already set to: %f",
relativePosition);
return;
}
d->m_pieRelativeHorPos = relativePosition;
emit horizontalPositionChanged();
emit update();
}
qreal QPieSeries::horizontalPosition() const
{
Q_D(const QPieSeries);
return d->m_pieRelativeHorPos;
}
void QPieSeries::setVerticalPosition(qreal relativePosition)
{
Q_D(QPieSeries);
if (relativePosition < 0.0)
relativePosition = 0.0;
if (relativePosition > 1.0)
relativePosition = 1.0;
if (qFuzzyCompare(d->m_pieRelativeVerPos + 1, relativePosition + 1)) {
qCDebug(lcProperties2D, "QPieSeries::setVerticalPosition. Position is already set to: %f",
relativePosition);
return;
}
d->m_pieRelativeVerPos = relativePosition;
emit verticalPositionChanged();
emit update();
}
qreal QPieSeries::verticalPosition() const
{
Q_D(const QPieSeries);
return d->m_pieRelativeVerPos;
}
void QPieSeries::setPieSize(qreal relativeSize)
{
Q_D(QPieSeries);
relativeSize = qBound((qreal)0.0, relativeSize, (qreal)1.0);
d->setSizes(d->m_holeRelativeSize, relativeSize);
}
qreal QPieSeries::pieSize() const
{
Q_D(const QPieSeries);
return d->m_pieRelativeSize;
}
/*!
Sets the start angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
\a angle must be smaller than the end angle.
\sa startAngle(), endAngle(), setEndAngle()
*/
void QPieSeries::setStartAngle(qreal angle)
{
Q_D(QPieSeries);
if (QtPrivate::fuzzyCompare(d->m_pieStartAngle, angle)) {
qCDebug(lcSeries2D, "QPieSeries::setStartAngle. Angle is already set to: %f",
angle);
return;
}
d->m_pieStartAngle = angle;
d->updateData();
emit startAngleChanged();
emit update();
}
/*!
Returns the start angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
\sa setStartAngle(), endAngle(), setEndAngle()
*/
qreal QPieSeries::startAngle() const
{
Q_D(const QPieSeries);
return d->m_pieStartAngle;
}
/*!
Sets the end angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
\a angle must be greater than the start angle.
\sa endAngle(), startAngle(), setStartAngle()
*/
void QPieSeries::setEndAngle(qreal angle)
{
Q_D(QPieSeries);
if (QtPrivate::fuzzyCompare(d->m_pieEndAngle, angle)) {
qCDebug(lcSeries2D, "QPieSeries::setEndAngle. Angle is already set to: %f",
angle);
return;
}
d->m_pieEndAngle = angle;
d->updateData();
emit endAngleChanged();
emit update();
}
/*!
Returns the end angle of the pie.
A full pie is 360 degrees, where 0 degrees is at 12 o'clock.
\sa setEndAngle(), startAngle(), setStartAngle()
*/
qreal QPieSeries::endAngle() const
{
Q_D(const QPieSeries);
return d->m_pieEndAngle;
}
void QPieSeries::componentComplete()
{
QList<QPieSlice *> slices;
for (QObject *child : children()) {
if (auto slice = qobject_cast<QPieSlice *>(child)) {
slices.append(slice);
qCDebug(lcSeries2D) << "append slice: " << child << "to pieSeries";
}
}
Q_D(QPieSeries);
if (slices.size() > 0 && d->m_sliceData.size() > 0)
d->appendDeclarative(slices);
else if (slices.size() > 0)
d->appendImperative(slices);
qCDebug(lcEvents2D, "QPieSeries::componentComplete.");
QAbstractSeries::componentComplete();
}
/*!
Sets the visibility of all slice labels to \a visible.
\note This function affects only the current slices in the series.
If a new slice is added, the default label visibility is \c false.
\sa QPieSlice::isLabelVisible(), QPieSlice::setLabelVisible()
*/
void QPieSeries::setLabelsVisible(bool visible)
{
Q_D(QPieSeries);
for (QPieSlice *s : std::as_const(d->m_slices))
s->setLabelVisible(visible);
}
/*!
Sets the position of all the slice labels to \a position.
\note This function affects only the current slices in the series.
If a new slice is added, the default label position is QPieSlice::LabelOutside.
\sa QPieSlice::labelPosition(), QPieSlice::setLabelPosition()
*/
void QPieSeries::setLabelsPosition(QPieSlice::LabelPosition position)
{
Q_D(QPieSeries);
for (QPieSlice *s : std::as_const(d->m_slices))
s->setLabelPosition(position);
}
void QPieSeries::handleSliceChange()
{
QPieSlice *pSlice = qobject_cast<QPieSlice *>(sender());
Q_D(QPieSeries);
Q_ASSERT(d->m_slices.contains(pSlice));
d->updateData();
}
QPieSeries::QPieSeries(QPieSeriesPrivate &dd, QObject *parent)
: QAbstractSeries(dd, parent)
{}
void QPieSeries::setHoleSize(qreal holeSize)
{
Q_D(QPieSeries);
holeSize = qBound((qreal)0.0, holeSize, (qreal)1.0);
d->setSizes(holeSize, d->m_pieRelativeSize);
}
qreal QPieSeries::holeSize() const
{
Q_D(const QPieSeries);
return d->m_holeRelativeSize;
}
qreal QPieSeries::angleSpanVisibleLimit() const
{
Q_D(const QPieSeries);
return d->m_angleSpanVisibleLimit;
}
void QPieSeries::setAngleSpanVisibleLimit(qreal newAngleSpanVisibleLimit)
{
Q_D(QPieSeries);
if (QtPrivate::fuzzyCompare(d->m_angleSpanVisibleLimit, newAngleSpanVisibleLimit)) {
qCDebug(lcProperties2D, "QPieSeries::setAngleSpanVisibleLimit. Limit is already set to: %f",
newAngleSpanVisibleLimit);
return;
}
d->m_angleSpanVisibleLimit = newAngleSpanVisibleLimit;
d->updateData(true);
emit angleSpanVisibleLimitChanged(newAngleSpanVisibleLimit);
}
QPieSeries::LabelVisibility QPieSeries::angleSpanLabelVisibility() const
{
Q_D(const QPieSeries);
return d->m_angleSpanVisibleMode;
}
void QPieSeries::setAngleSpanLabelVisibility(QPieSeries::LabelVisibility newAngleSpanVisibleMode)
{
Q_D(QPieSeries);
if (d->m_angleSpanVisibleMode == newAngleSpanVisibleMode) {
qCDebug(lcProperties2D) << "QPieSeries::setAngleSpanLabelVisibility. Property is already set to: "
<< newAngleSpanVisibleMode;
return;
}
d->m_angleSpanVisibleMode = newAngleSpanVisibleMode;
d->updateData(true);
emit angleSpanLabelVisibilityChanged(newAngleSpanVisibleMode);
}
QList<qreal> QPieSeries::sliceData() const
{
Q_D(const QPieSeries);
return d->m_sliceData;
}
void QPieSeries::setSliceData(const QList<qreal> &newSliceData)
{
Q_D(QPieSeries);
if (d->m_sliceData.isSharedWith(newSliceData))
return;
if (d->dataInput() == QPieSeriesPrivate::DataInput::Imperative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Declarative);
d->m_sliceData = newSliceData;
if (d->m_sliceData.size() != 0)
d->handleSliceDataChanged();
else
clear();
emit sliceDataChanged(newSliceData);
}
const QStringList &QPieSeries::sliceLabels() const &
{
Q_D(const QPieSeries);
return d->m_sliceLabels;
}
QStringList QPieSeries::sliceLabels() &&
{
Q_D(QPieSeries);
return d->m_sliceLabels;
}
void QPieSeries::setSliceLabels(QStringList newLabels)
{
Q_D(QPieSeries);
if (d->m_sliceLabels.isSharedWith(newLabels))
return;
if (d->dataInput() == QPieSeriesPrivate::DataInput::Imperative) {
qCWarning(lcProperties2D)
<< __func__ << "Mixing declarative and imperative datainput is not supported.";
return;
}
d->setDataInput(QPieSeriesPrivate::DataInput::Declarative);
d->m_sliceLabels = newLabels;
d->handleSliceLabelsChanged(newLabels);
emit sliceLabelsChanged(d->m_sliceLabels);
}
QPieSeriesPrivate::QPieSeriesPrivate()
: QAbstractSeriesPrivate(QAbstractSeries::SeriesType::Pie)
, m_pieRelativeHorPos(.5)
, m_pieRelativeVerPos(.5)
, m_pieRelativeSize(.7)
, m_pieStartAngle(0)
, m_pieEndAngle(360)
, m_sum(0)
, m_holeRelativeSize(.0)
, m_angleSpanVisibleLimit(.0)
, m_angleSpanVisibleMode(QPieSeries::LabelVisibility::First)
, m_dataInput(QPieSeriesPrivate::DataInput::Unset)
{}
void QPieSeriesPrivate::updateData(bool clearHidden)
{
Q_Q(QPieSeries);
Q_TRACE_SCOPE(QGraphs2DPieSeriesUpdateData);
// calculate sum of all slices
qreal sum = 0;
for (QPieSlice *s : std::as_const(m_slices))
sum += s->value();
Q_ASSERT(sum >= 0.0);
if (!qFuzzyCompare(m_sum + 1, sum + 1)) {
m_sum = sum;
emit q->sumChanged();
}
// nothing to show..
if (qFuzzyIsNull(m_sum))
return;
// update slice attributes
qreal sliceAngle = m_pieStartAngle;
qreal pieSpan = m_pieEndAngle - m_pieStartAngle;
auto hideMode = q->angleSpanLabelVisibility();
bool hideNextSmallSlice = false;
for (QPieSlice *s : std::as_const(m_slices)) {
QPieSlicePrivate *d = s->d_func();
d->setPercentage(s->value() / m_sum);
d->setStartAngle(sliceAngle);
d->setAngleSpan(pieSpan * s->percentage());
sliceAngle += s->angleSpan();
// Reset hidden status
if (clearHidden) {
d->m_hideLabel = false;
d->setLabelVisible(true);
}
// Check if current slice is small, and if the previous slice was also small
// Hide the label on this one if the mode matches
if (d->m_angleSpan < m_angleSpanVisibleLimit
&& ((!hideNextSmallSlice && hideMode == QPieSeries::LabelVisibility::Even)
|| (hideNextSmallSlice
&& (hideMode == QPieSeries::LabelVisibility::Odd
|| hideMode == QPieSeries::LabelVisibility::First))
|| hideMode == QPieSeries::LabelVisibility::None)) {
d->setLabelVisible(false, true);
}
if (hideMode == QPieSeries::LabelVisibility::First) {
// Hide every other small slice label after the first shown one
hideNextSmallSlice = d->m_angleSpan < m_angleSpanVisibleLimit;
} else {
// Hide only every other odd/even small slice label
hideNextSmallSlice = (!hideNextSmallSlice && d->m_angleSpan < m_angleSpanVisibleLimit);
}
}
emit q->update();
}
void QPieSeriesPrivate::updateLabels()
{
Q_Q(QPieSeries);
emit q->update();
}
void QPieSeriesPrivate::setSizes(qreal innerSize, qreal outerSize)
{
Q_Q(QPieSeries);
if (!QtPrivate::fuzzyCompare(m_holeRelativeSize, innerSize)) {
m_holeRelativeSize = innerSize;
emit q->holeSizeChanged();
} else {
qCDebug(lcProperties2D, "QPieSeries::setSizes. Inner size is already set to: %f",
innerSize);
}
if (!QtPrivate::fuzzyCompare(m_pieRelativeSize, outerSize)) {
m_pieRelativeSize = outerSize;
emit q->pieSizeChanged();
} else {
qCDebug(lcProperties2D, "QPieSeries::setSizes. Outer size is already set to: %f",
outerSize);
}
}
void QPieSeriesPrivate::handleSliceDataChanged()
{
const bool hasLabelData = m_sliceLabels.size() > 0;
const bool enoughSlices = m_sliceData.size() == m_slices.size();
if (!enoughSlices) {
QList<QPieSlice *> temp;
if (m_sliceData.size() > m_slices.size()) {
// Not enough slices
const size_t missingCount = m_sliceData.size() - m_slices.size();
temp.reserve(missingCount);
const qsizetype sliceDataSize = m_sliceData.size();
for (qsizetype c = m_slices.size(); c < sliceDataSize; ++c)
temp.append(new QPieSlice(QLatin1StringView(""), m_sliceData.at(c)));
appendDeclarative(temp);
} else {
// Too many slices
const qsizetype redundantCount = m_slices.size() - m_sliceData.size();
removeMultiple(m_sliceData.size() , redundantCount);
}
}
// value count and slice count match
// We can just update all slice values
int sliceIndex = 0;
for (const auto &slice : std::as_const(m_slices))
slice->setValue(m_sliceData.at(sliceIndex++));
if (hasLabelData)
handleSliceLabelsChanged(m_sliceLabels);
}
void QPieSeriesPrivate::handleSliceLabelsChanged(const QStringList &labels)
{
const qsizetype sliceCount = m_slices.size();
const qsizetype labelCount = labels.size();
if (sliceCount == labelCount) {
int sliceIndex = 0;
for (const auto &i : std::as_const(labels))
m_slices.at(sliceIndex++)->setLabel(i);
} else if (sliceCount < labelCount) {
for (qsizetype i = 0; i < sliceCount; ++i)
m_slices.at(i)->setLabel(labels.at(i));
} else if (sliceCount > labelCount) {
for (qsizetype i = 0; i < labelCount; ++i)
m_slices.at(i)->setLabel(labels.at(i));
for (qsizetype i = labelCount; i < sliceCount; ++i)
m_slices.at(i)->setLabel(QString::number(i + 1, 'f', 1));
}
}
bool QPieSeriesPrivate::appendImperative(const QList<QPieSlice *> &slices)
{
setDataInput(QPieSeriesPrivate::DataInput::Imperative);
return append(slices);
}
bool QPieSeriesPrivate::appendDeclarative(const QList<QPieSlice *> &slices)
{
setDataInput(QPieSeriesPrivate::DataInput::Declarative);
return append(slices);
}
bool QPieSeriesPrivate::append(const QList<QPieSlice *> &slices)
{
if (slices.size() == 0)
return false;
for (auto *s : slices) {
if (!s || m_slices.contains(s))
return false;
if (s->series()) // already added to some series
return false;
if (qIsNaN(s->value()) || qIsInf(s->value()))
return false;
}
Q_Q(QPieSeries);
for (auto *s : slices) {
s->setParent(q);
s->d_func()->updateSeries(q);
m_slices << s;
}
updateData();
for (auto *s : slices)
QObject::connect(s, SIGNAL(sliceChanged()), q, SLOT(handleSliceChange()));
emit q->added(slices);
emit q->countChanged();
return true;
}
void QPieSeriesPrivate::removeMultiple(qsizetype index, int count)
{
if (index < 0 || count < 1 || index + count > m_slices.size())
return;
QList<QPieSlice *> removedList;
for (qsizetype i = index; i < index + count; ++i) {
auto slice = m_slices[index];
m_slices.removeOne(slice);
updateData();
removedList << slice;
}
Q_Q(QPieSeries);
emit q->removed(removedList);
for (auto slice : std::as_const(removedList)) {
delete slice;
}
emit q->countChanged();
}
QT_END_NAMESPACE
#include "moc_qpieseries.cpp"