HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Commit - r1670:5a9ca9e911f7

Added initial donut chart support to Pie series

Marek Rosa -

r1670:5a9ca9e911f7

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r1670:5a9ca9e911f7

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src/piechart/piechartitem.cpp +1 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 Digia Plc
             ** All rights reserved.
             ** For any questions to Digia, please use contact form at http://qt.digia.com
             **
             ** This file is part of the Qt Commercial Charts Add-on.
             **
             ** $QT_BEGIN_LICENSE$
             ** Licensees holding valid Qt Commercial licenses may use this file in
             ** accordance with the Qt Commercial License Agreement provided with the
             ** Software or, alternatively, in accordance with the terms contained in
             ** a written agreement between you and Digia.
             **
             ** If you have questions regarding the use of this file, please use
             ** contact form at http://qt.digia.com
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #include "piechartitem_p.h"
             #include "piesliceitem_p.h"
             #include "qpieslice.h"
             #include "qpieslice_p.h"
             #include "qpieseries.h"
             #include "qpieseries_p.h"
             #include "chartpresenter_p.h"
             #include "chartdataset_p.h"
             #include "chartanimator_p.h"
             #include <QPainter>
             #include <QTimer>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             PieChartItem::PieChartItem(QPieSeries *series, ChartPresenter* presenter)
                 :ChartItem(presenter),
                 m_series(series)
             {
                 Q_ASSERT(series);
                 QPieSeriesPrivate *p = QPieSeriesPrivate::fromSeries(series);
                 connect(series, SIGNAL(visibleChanged()), this, SLOT(handleSeriesVisibleChanged()));
                 connect(series, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleSlicesAdded(QList<QPieSlice*>)));
                 connect(series, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleSlicesRemoved(QList<QPieSlice*>)));
                 connect(p, SIGNAL(horizontalPositionChanged()), this, SLOT(updateLayout()));
                 connect(p, SIGNAL(verticalPositionChanged()), this, SLOT(updateLayout()));
                 connect(p, SIGNAL(pieSizeChanged()), this, SLOT(updateLayout()));
                 connect(p, SIGNAL(calculatedDataChanged()), this, SLOT(updateLayout()));
                 // Note: the following does not affect as long as the item does not have anything to paint
                 setZValue(ChartPresenter::PieSeriesZValue);
                 // Note: will not create slice items until we have a proper rectangle to draw on.
             }
             PieChartItem::~PieChartItem()
             {
                 // slices deleted automatically through QGraphicsItem
             }
             void PieChartItem::handleGeometryChanged(const QRectF& rect)
             {
                 prepareGeometryChange();
                 m_rect = rect;
                 updateLayout();
                 // This is for delayed initialization of the slice items during startup.
                 // It ensures that startup animation originates from the correct position.
                 if (m_sliceItems.isEmpty())
                     handleSlicesAdded(m_series->slices());
             }
             void PieChartItem::handleDomainChanged(qreal minX, qreal maxX, qreal minY, qreal maxY)
             {
                 Q_UNUSED(minX);
                 Q_UNUSED(maxX);
                 Q_UNUSED(minY);
                 Q_UNUSED(maxY);
                 // does not apply to pie
             }
             void PieChartItem::rangeXChanged(qreal min, qreal max, int tickXCount)
             {
                 Q_UNUSED(min);
                 Q_UNUSED(max);
                 Q_UNUSED(tickXCount);
                 // does not apply to pie
             }
             void PieChartItem::rangeYChanged(qreal min, qreal max, int tickYCount)
             {
                 Q_UNUSED(min);
                 Q_UNUSED(max);
                 Q_UNUSED(tickYCount);
                 // does not apply to pie
             }
             void PieChartItem::updateLayout()
             {
                 // find pie center coordinates
                 m_pieCenter.setX(m_rect.left() + (m_rect.width() * m_series->horizontalPosition()));
                 m_pieCenter.setY(m_rect.top() + (m_rect.height() * m_series->verticalPosition()));
                 // find maximum radius for pie
                 m_pieRadius = m_rect.height() / 2;
                 if (m_rect.width() < m_rect.height())
                     m_pieRadius = m_rect.width() / 2;
                 // apply size factor
                 m_pieRadius *= m_series->pieSize();
                 // set layouts for existing slice items
                 foreach (QPieSlice* slice, m_series->slices()) {
                     PieSliceItem *sliceItem = m_sliceItems.value(slice);
                     if (sliceItem) {
                         PieSliceData sliceData = updateSliceGeometry(slice);
                         if (animator())
                             animator()->updateAnimation(this, sliceItem, sliceData);
                         else
                             sliceItem->setLayout(sliceData);
                     }
                 }
                 update();
             }
             void PieChartItem::handleSlicesAdded(QList<QPieSlice*> slices)
             {
                 // delay creating slice items until there is a proper rectangle
                 if (!m_rect.isValid() && m_sliceItems.isEmpty())
                     return;
                 presenter()->chartTheme()->decorate(m_series, presenter()->dataSet()->seriesIndex(m_series));
                 bool startupAnimation = m_sliceItems.isEmpty();
                 foreach (QPieSlice *slice, slices) {
                     PieSliceItem* sliceItem = new PieSliceItem(this);
                     m_sliceItems.insert(slice, sliceItem);
                     // Note: no need to connect to slice valueChanged() etc.
                     // This is handled through calculatedDataChanged signal.
                     connect(slice, SIGNAL(labelChanged()), this, SLOT(handleSliceChanged()));
                     connect(slice, SIGNAL(labelVisibleChanged()), this, SLOT(handleSliceChanged()));
                     connect(slice, SIGNAL(penChanged()), this, SLOT(handleSliceChanged()));
                     connect(slice, SIGNAL(brushChanged()), this, SLOT(handleSliceChanged()));
                     connect(slice, SIGNAL(labelBrushChanged()), this, SLOT(handleSliceChanged()));
                     connect(slice, SIGNAL(labelFontChanged()), this, SLOT(handleSliceChanged()));
                     QPieSlicePrivate *p = QPieSlicePrivate::fromSlice(slice);
                     connect(p, SIGNAL(labelPositionChanged()), this, SLOT(handleSliceChanged()));
                     connect(p, SIGNAL(explodedChanged()), this, SLOT(handleSliceChanged()));
                     connect(p, SIGNAL(labelArmLengthFactorChanged()), this, SLOT(handleSliceChanged()));
                     connect(p, SIGNAL(explodeDistanceFactorChanged()), this, SLOT(handleSliceChanged()));
                     connect(sliceItem, SIGNAL(clicked(Qt::MouseButtons)), slice, SIGNAL(clicked()));
                     connect(sliceItem, SIGNAL(hovered(bool)), slice, SIGNAL(hovered(bool)));
                     PieSliceData sliceData = updateSliceGeometry(slice);
                     if (animator())
                         animator()->addAnimation(this, sliceItem, sliceData, startupAnimation);
                     else
                         sliceItem->setLayout(sliceData);
                 }
             }
             void PieChartItem::handleSlicesRemoved(QList<QPieSlice*> slices)
             {
                 presenter()->chartTheme()->decorate(m_series, presenter()->dataSet()->seriesIndex(m_series));
                 foreach (QPieSlice *slice, slices) {
                     PieSliceItem *sliceItem = m_sliceItems.value(slice);
                     // this can happen if you call append() & remove() in a row so that PieSliceItem is not even created
                     if (!sliceItem)
                         continue;
                     m_sliceItems.remove(slice);
                     if (animator())
                         animator()->removeAnimation(this, sliceItem); // animator deletes the PieSliceItem
                     else
                         delete sliceItem;
                 }
             }
             void PieChartItem::handleSliceChanged()
             {
                 QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
                 if (!slice) {
                     QPieSlicePrivate* slicep = qobject_cast<QPieSlicePrivate *>(sender());
                     slice = slicep->q_ptr;
                 }
                 Q_ASSERT(m_sliceItems.contains(slice));
                 PieSliceItem *sliceItem = m_sliceItems.value(slice);
                 PieSliceData sliceData = updateSliceGeometry(slice);
                 if (animator())
                     animator()->updateAnimation(this, sliceItem, sliceData);
                 else
                     sliceItem->setLayout(sliceData);
                 update();
             }
             void PieChartItem::handleSeriesVisibleChanged()
             {
                 setVisible(m_series->isVisible());
             }
             PieSliceData PieChartItem::updateSliceGeometry(QPieSlice *slice)
             {
                 PieSliceData &sliceData = QPieSlicePrivate::fromSlice(slice)->m_data;
                 sliceData.m_center = PieSliceItem::sliceCenter(m_pieCenter, m_pieRadius, slice);
                 sliceData.m_radius = m_pieRadius;
+                sliceData.m_donut = m_series->donut();
                 return sliceData;
             }
             #include "moc_piechartitem_p.cpp"
             QTCOMMERCIALCHART_END_NAMESPACE

src/piechart/pieslicedata_p.h +2 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 Digia Plc
             ** All rights reserved.
             ** For any questions to Digia, please use contact form at http://qt.digia.com
             **
             ** This file is part of the Qt Commercial Charts Add-on.
             **
             ** $QT_BEGIN_LICENSE$
             ** Licensees holding valid Qt Commercial licenses may use this file in
             ** accordance with the Qt Commercial License Agreement provided with the
             ** Software or, alternatively, in accordance with the terms contained in
             ** a written agreement between you and Digia.
             **
             ** If you have questions regarding the use of this file, please use
             ** contact form at http://qt.digia.com
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             //  W A R N I N G
             //  -------------
             //
             // This file is not part of the QtCommercial Chart API.  It exists purely as an
             // implementation detail.  This header file may change from version to
             // version without notice, or even be removed.
             //
             // We mean it.
             #ifndef PIESLICEDATA_P_H
             #define PIESLICEDATA_P_H
             #include "qchartglobal.h"
             #include "qpieslice.h"
             #include <QPen>
             #include <QBrush>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             template <class T>
             class Themed : public T
             {
             public:
                 Themed():m_isThemed(true) {}
                 inline T &operator=(const T &other) { return T::operator =(other); }
                 inline bool operator!=(const T &other) const { return T::operator !=(other); }
                 inline bool operator!=(const Themed &other) const
                 {
                     if (T::operator !=(other))
                         return true;
                     if (m_isThemed != other.m_isThemed)
                         return true;
                     return false;
                 }
                 inline void setThemed(bool state) { m_isThemed = state; }
                 inline bool isThemed() const { return m_isThemed; }
             private:
                 bool m_isThemed;
             };
             class PieSliceData
             {
             public:
                 PieSliceData()
                 {
                     m_value = 0;
                     m_isExploded = false;
                     m_explodeDistanceFactor = 0.15;
                     m_isLabelVisible = false;
                     m_labelPosition = QPieSlice::LabelOutside;
                     m_labelArmLengthFactor = 0.15;
                     m_percentage = 0;
                     m_radius = 0;
                     m_startAngle = 0;
                     m_angleSpan = 0;
+                    m_donut = false;
                 }
                 bool operator!=(const PieSliceData &other) const
                 {
                     if (!qFuzzyIsNull(m_value - other.m_value))
                         return true;
                     if (m_slicePen != other.m_slicePen ||
                         m_sliceBrush != other.m_sliceBrush)
                         return true;
                     if (m_isExploded != other.m_isExploded ||
                         !qFuzzyIsNull(m_explodeDistanceFactor - other.m_explodeDistanceFactor))
                         return true;
                     if (m_isLabelVisible != other.m_isLabelVisible ||
                         m_labelText != other.m_labelText ||
                         m_labelFont != other.m_labelFont ||
                         m_labelPosition != other.m_labelPosition ||
                         !qFuzzyIsNull(m_labelArmLengthFactor - other.m_labelArmLengthFactor) ||
                         m_labelBrush != other.m_labelBrush)
                         return true;
                     if (!qFuzzyIsNull(m_percentage - other.m_percentage) ||
                         m_center != other.m_center ||
                         !qFuzzyIsNull(m_radius - other.m_radius) ||
                         !qFuzzyIsNull(m_startAngle - other.m_startAngle) ||
                         !qFuzzyIsNull(m_angleSpan - other.m_angleSpan))
                         return true;
                     return false;
                 }
                 qreal m_value;
                 Themed<QPen> m_slicePen;
                 Themed<QBrush> m_sliceBrush;
                 bool m_isExploded;
                 qreal m_explodeDistanceFactor;
                 bool m_isLabelVisible;
                 QString m_labelText;
                 Themed<QFont> m_labelFont;
                 QPieSlice::LabelPosition m_labelPosition;
                 qreal m_labelArmLengthFactor;
                 Themed<QBrush> m_labelBrush;
                 qreal m_percentage;
                 QPointF m_center;
                 qreal m_radius;
                 qreal m_startAngle;
                 qreal m_angleSpan;
+                bool m_donut;
             };
             QTCOMMERCIALCHART_END_NAMESPACE
             #endif // PIESLICEDATA_P_H

src/piechart/piesliceitem.cpp +17 -9

             /****************************************************************************
             **
             ** Copyright (C) 2012 Digia Plc
             ** All rights reserved.
             ** For any questions to Digia, please use contact form at http://qt.digia.com
             **
             ** This file is part of the Qt Commercial Charts Add-on.
             **
             ** $QT_BEGIN_LICENSE$
             ** Licensees holding valid Qt Commercial licenses may use this file in
             ** accordance with the Qt Commercial License Agreement provided with the
             ** Software or, alternatively, in accordance with the terms contained in
             ** a written agreement between you and Digia.
             **
             ** If you have questions regarding the use of this file, please use
             ** contact form at http://qt.digia.com
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #include "piesliceitem_p.h"
             #include "piechartitem_p.h"
             #include "qpieseries.h"
             #include "qpieslice.h"
             #include "chartpresenter_p.h"
             #include <QPainter>
             #include <qmath.h>
             #include <QGraphicsSceneEvent>
             #include <QTime>
             #include <QDebug>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             QPointF offset(qreal angle, qreal length)
             {
                 qreal dx = qSin(angle*(M_PI/180)) * length;
                 qreal dy = qCos(angle*(M_PI/180)) * length;
                 return QPointF(dx, -dy);
             }
             PieSliceItem::PieSliceItem(QGraphicsItem* parent)
                 :QGraphicsObject(parent),
-                m_hovered(false)
+                  m_hovered(false)
             {
                 setAcceptHoverEvents(true);
                 setAcceptedMouseButtons(Qt::MouseButtonMask);
                 setZValue(ChartPresenter::PieSeriesZValue);
             }
             PieSliceItem::~PieSliceItem()
             {
                 // If user is hovering over the slice and it gets destroyed we do
                 // not get a hover leave event. So we must emit the signal here.
                 if (m_hovered)
                     emit hovered(false);
             }
             QRectF PieSliceItem::boundingRect() const
             {
                 return m_boundingRect;
             }
             QPainterPath PieSliceItem::shape() const
             {
                 // Don't include the label and label arm.
                 // This is used to detect a mouse clicks. We do not want clicks from label.
                 return m_slicePath;
             }
             void PieSliceItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* /*option*/, QWidget* /*widget*/)
             {
                 painter->save();
                 painter->setClipRect(parentItem()->boundingRect());
                 painter->setPen(m_data.m_slicePen);
                 painter->setBrush(m_data.m_sliceBrush);
                 painter->drawPath(m_slicePath);
                 painter->restore();
                 if (m_data.m_isLabelVisible) {
                     painter->save();
                     // Pen for label arm not defined in the QPieSeries api, let's use brush's color instead
                     // Also, the drawText actually uses the pen color for the text color (unlike QGraphicsSimpleTextItem)
                     painter->setPen(m_data.m_labelBrush.color());
                     painter->setBrush(m_data.m_labelBrush);
                     painter->setFont(m_data.m_labelFont);
                     if (m_data.m_labelPosition == QPieSlice::LabelOutside) {
                         painter->setClipRect(parentItem()->boundingRect());
                         painter->strokePath(m_labelArmPath, m_data.m_labelBrush.color());
                     } else { // QPieSlice::LabelInside
                         painter->setClipPath(m_slicePath);
                     }
                     painter->drawText(m_labelTextRect, Qt::AlignCenter, m_data.m_labelText);
                     painter->restore();
                 }
             }
             void PieSliceItem::hoverEnterEvent(QGraphicsSceneHoverEvent* /*event*/)
             {
                 m_hovered = true;
                 emit hovered(true);
             }
             void PieSliceItem::hoverLeaveEvent(QGraphicsSceneHoverEvent* /*event*/)
             {
                 m_hovered = false;
                 emit hovered(false);
             }
             void PieSliceItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
             {
                 emit clicked(event->buttons());
             }
             void PieSliceItem::setLayout(const PieSliceData &sliceData)
             {
                 m_data = sliceData;
                 updateGeometry();
                 update();
             }
             void PieSliceItem::updateGeometry()
             {
                 if (m_data.m_radius <= 0)
                     return;
                 prepareGeometryChange();
                 // slice path
                 qreal centerAngle;
                 QPointF armStart;
                 m_slicePath = slicePath(m_data.m_center, m_data.m_radius, m_data.m_startAngle, m_data.m_angleSpan, &centerAngle, &armStart);
                 // text rect
                 QFontMetricsF fm(m_data.m_labelFont);
                 m_labelTextRect = QRectF(0, 0, fm.width(m_data.m_labelText), fm.height());
                 // label arm path
                 QPointF labelTextStart;
                 m_labelArmPath = labelArmPath(armStart, centerAngle, m_data.m_radius * m_data.m_labelArmLengthFactor, m_labelTextRect.width(), &labelTextStart);
                 // text position
                 if (m_data.m_labelPosition == QPieSlice::LabelOutside)
                     m_labelTextRect.moveBottomLeft(labelTextStart);
                 else {// QPieSlice::LabelInside
                     QPointF sliceCenter = m_data.m_center + offset(centerAngle, m_data.m_radius / 2);
                     m_labelTextRect.moveCenter(sliceCenter);
                 }
                 //  bounding rect
                 if (m_data.m_isLabelVisible)
                     m_boundingRect = m_slicePath.boundingRect().united(m_labelArmPath.boundingRect()).united(m_labelTextRect);
                 else
                     m_boundingRect = m_slicePath.boundingRect();
             }
             QPointF PieSliceItem::sliceCenter(QPointF point, qreal radius, QPieSlice *slice)
             {
                 if (slice->isExploded()) {
                     qreal centerAngle = slice->startAngle() + (slice->angleSpan()/2);
                     qreal len = radius * slice->explodeDistanceFactor();
                     point += offset(centerAngle, len);
                 }
                 return point;
             }
             QPainterPath PieSliceItem::slicePath(QPointF center, qreal radius, qreal startAngle, qreal angleSpan, qreal *centerAngle, QPointF* armStart)
             {
                 // calculate center angle
                 *centerAngle = startAngle + (angleSpan/2);
                 // calculate slice rectangle
                 QRectF rect(center.x()-radius, center.y()-radius, radius*2, radius*2);
                 // slice path
-                // TODO: draw the shape so that it might have a hole in the center
                 QPainterPath path;
-                path.moveTo(rect.center());
+                if (m_data.m_donut) {
-                path.arcTo(rect, -startAngle + 90, -angleSpan);
+                    qreal donutFraction = 5.0;
-                path.closeSubpath();
+                    QRectF insideRect = rect.adjusted(rect.width() / donutFraction, rect.height() / donutFraction, -rect.width() / donutFraction, -rect.height() / donutFraction);
+                    path.arcMoveTo(rect, -startAngle + 90);
+                    path.arcTo(rect, -startAngle + 90, -angleSpan);
+                    path.arcTo(insideRect, -startAngle + 90 - angleSpan, angleSpan);
+                    path.closeSubpath();
+                } else {
+                    path.moveTo(rect.center());
+                    path.arcTo(rect, -startAngle + 90, -angleSpan);
+                    path.closeSubpath();
+                }
                 // calculate label arm start point
                 *armStart = center;
                 *armStart += offset(*centerAngle, radius + PIESLICE_LABEL_GAP);
                 return path;
             }
             QPainterPath PieSliceItem::labelArmPath(QPointF start, qreal angle, qreal length, qreal textWidth, QPointF *textStart)
             {
                 // Normalize the angle to 0-360 range
                 // NOTE: We are using int here on purpose. Depenging on platform and hardware
                 // qreal can be a double, float or something the user gives to the Qt configure
                 // (QT_COORD_TYPE). Compilers do not seem to support modulo for double or float
                 // but there are fmod() and fmodf() functions for that. So instead of some #ifdef
                 // that might break we just use int. Precision for this is just fine for our needs.
                 int normalized = angle * 10.0;
                 normalized = normalized % 3600;
                 if (normalized < 0)
                     normalized += 3600;
                 angle = (qreal) normalized / 10.0;
                 // prevent label arm pointing straight down because it will look bad
                 if (angle < 180 && angle > 170)
                     angle = 170;
                 if (angle > 180 && angle < 190)
                     angle = 190;
                 // line from slice to label
                 QPointF parm1 = start + offset(angle, length);
                 // line to underline the label
                 QPointF parm2 = parm1;
                 if (angle < 180) { // arm swings the other way on the left side
-                     parm2 += QPointF(textWidth, 0);
+                    parm2 += QPointF(textWidth, 0);
-                     *textStart = parm1;
+                    *textStart = parm1;
                 }
                 else {
-                     parm2 += QPointF(-textWidth,0);
+                    parm2 += QPointF(-textWidth,0);
-                     *textStart = parm2;
+                    *textStart = parm2;
                 }
                 QPainterPath path;
                 path.moveTo(start);
                 path.lineTo(parm1);
                 path.lineTo(parm2);
                 return path;
             }
             #include "moc_piesliceitem_p.cpp"
             QTCOMMERCIALCHART_END_NAMESPACE

src/piechart/qpieseries.cpp +16 -1

             /****************************************************************************
             **
             ** Copyright (C) 2012 Digia Plc
             ** All rights reserved.
             ** For any questions to Digia, please use contact form at http://qt.digia.com
             **
             ** This file is part of the Qt Commercial Charts Add-on.
             **
             ** $QT_BEGIN_LICENSE$
             ** Licensees holding valid Qt Commercial licenses may use this file in
             ** accordance with the Qt Commercial License Agreement provided with the
             ** Software or, alternatively, in accordance with the terms contained in
             ** a written agreement between you and Digia.
             **
             ** If you have questions regarding the use of this file, please use
             ** contact form at http://qt.digia.com
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #include "qpieseries.h"
             #include "qpieseries_p.h"
             #include "qpieslice.h"
             #include "qpieslice_p.h"
             #include "pieslicedata_p.h"
             #include "chartdataset_p.h"
             #include "charttheme_p.h"
             #include "chartanimator_p.h"
             #include "legendmarker_p.h"
             #include "qabstractaxis.h"
             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 defined as 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.
                 Pie size and position on the chart is controlled by using relative values which range from 0.0 to 1.0
                 These relate to the actual chart rectangle.
                 By default the pie is defined as a full pie but it can also be a partial pie.
                 This can be done by setting a starting angle and angle span to the series.
                 Full pie is 360 degrees where 0 is at 12 a'clock.
                 See the \l {PieChart Example} {pie chart example} to learn how to create a simple pie chart.
                 \image examples_piechart.png
             */
             /*!
                 \qmlclass PieSeries QPieSeries
                 \inherits AbstractSeries
                 The following QML shows how to create a simple pie chart.
                 \snippet ../demos/qmlchart/qml/qmlchart/View1.qml 1
                 \beginfloatleft
                 \image demos_qmlchart1.png
                 \endfloat
                 \clearfloat
             */
             /*!
                 \property QPieSeries::horizontalPosition
                 \brief Defines the horizontal position of the pie.
                 The value is a relative value to the chart rectangle where:
                 \list
                 \o 0.0 is the absolute left.
                 \o 1.0 is the absolute right.
                 \endlist
                 Default value is 0.5 (center).
                 \sa verticalPosition
             */
             /*!
                 \qmlproperty real PieSeries::horizontalPosition
                 Defines the horizontal position of the pie.
                 The value is a relative value to the chart rectangle where:
                 \list
                 \o 0.0 is the absolute left.
                 \o 1.0 is the absolute right.
                 \endlist
                 Default value is 0.5 (center).
                 \sa verticalPosition
             */
             /*!
                 \property QPieSeries::verticalPosition
                 \brief Defines the vertical position of the pie.
                 The value is a relative value to the chart rectangle where:
                 \list
                 \o 0.0 is the absolute top.
                 \o 1.0 is the absolute bottom.
                 \endlist
                 Default value is 0.5 (center).
                 \sa horizontalPosition
             */
             /*!
                 \qmlproperty real PieSeries::verticalPosition
                 Defines the vertical position of the pie.
                 The value is a relative value to the chart rectangle where:
                 \list
                 \o 0.0 is the absolute top.
                 \o 1.0 is the absolute bottom.
                 \endlist
                 Default value is 0.5 (center).
                 \sa horizontalPosition
             */
             /*!
                 \property QPieSeries::size
                 \brief Defines the pie size.
                 The value is a relative value to the chart rectangle where:
                 \list
                 \o 0.0 is the minimum size (pie not drawn).
                 \o 1.0 is the maximum size that can fit the chart.
                 \endlist
                 Default value is 0.7.
             */
             /*!
                 \qmlproperty real PieSeries::size
                 Defines the pie size.
                 The value is a relative value to the chart rectangle where:
                 \list
                 \o 0.0 is the minimum size (pie not drawn).
                 \o 1.0 is the maximum size that can fit the chart.
                 \endlist
                 Default value is 0.7.
             */
             /*!
                 \property QPieSeries::startAngle
                 \brief Defines the starting angle of the pie.
                 Full pie is 360 degrees where 0 degrees is at 12 a'clock.
                 Default is value is 0.
             */
             /*!
                 \qmlproperty real PieSeries::startAngle
                 Defines the starting angle of the pie.
                 Full pie is 360 degrees where 0 degrees is at 12 a'clock.
                 Default is value is 0.
             */
             /*!
                 \property QPieSeries::endAngle
                 \brief Defines the ending angle of the pie.
                 Full pie is 360 degrees where 0 degrees is at 12 a'clock.
                 Default is value is 360.
             */
             /*!
                 \qmlproperty real PieSeries::endAngle
                 Defines the ending angle of the pie.
                 Full pie is 360 degrees where 0 degrees is at 12 a'clock.
                 Default is value is 360.
             */
             /*!
                 \property QPieSeries::count
                 Number of slices in the series.
             */
             /*!
                 \qmlproperty int PieSeries::count
                 Number of slices in the series.
             */
             /*!
                 \fn void QPieSeries::countChanged()
                 Emitted when the slice count has changed.
                 \sa count
             */
             /*!
                 \qmlsignal PieSeries::onCountChanged()
                 Emitted when the slice count has changed.
             */
             /*!
                 \property QPieSeries::sum
                 Sum of all slices.
                 The series keeps track of the sum of all slices it holds.
             */
             /*!
                 \qmlproperty real PieSeries::sum
                 Sum of all slices.
                 The series keeps track of the sum of all slices it holds.
             */
             /*!
                 \fn void QPieSeries::sumChanged()
                 Emitted when the sum of all slices has changed.
                 \sa sum
             */
             /*!
                 \qmlsignal PieSeries::onSumChanged()
                 Emitted when the sum of all slices has changed. This may happen for example if you add or remove slices, or if you
                 change value of a slice.
             */
             /*!
                 \fn void QPieSeries::added(QList<QPieSlice*> slices)
                 This signal is emitted when \a slices have been added to the series.
                 \sa append(), insert()
             */
             /*!
                 \qmlsignal PieSeries::onAdded(PieSlice slice)
                 Emitted when \a slice has been added to the series.
             */
             /*!
                 \fn void QPieSeries::removed(QList<QPieSlice*> slices)
                 This signal is emitted when \a slices have been removed from the series.
                 \sa remove()
             */
             /*!
                 \qmlsignal PieSeries::onRemoved(PieSlice slice)
                 Emitted when \a slice has been removed from the series.
             */
             /*!
                 \fn void QPieSeries::clicked(QPieSlice* slice)
                 This signal is emitted when a \a slice has been clicked.
                 \sa QPieSlice::clicked()
             */
             /*!
               \qmlsignal PieSeries::onClicked(PieSlice slice)
               This signal is emitted when a \a slice has been clicked.
             */
             /*!
                 \fn void QPieSeries::hovered(QPieSlice* slice, bool state)
                 This signal is emitted when user has hovered over or away from the \a slice.
                 \a state is true when user has hovered over the slice and false when hover has moved away from the slice.
                 \sa QPieSlice::hovered()
             */
             /*!
                 \qmlsignal PieSeries::onHovered(PieSlice slice, bool state)
                 This signal is emitted when user has hovered over or away from the \a slice. \a state is true when user has hovered
                 over the slice and false when hover has moved away from the slice.
             */
             /*!
                 \qmlmethod PieSlice PieSeries::at(int index)
                 Returns slice at \a index. Returns null if the index is not valid.
             */
             /*!
                 \qmlmethod PieSlice PieSeries::find(string label)
                 Returns the first slice with \a label. Returns null if the index is not valid.
             */
             /*!
                 \qmlmethod PieSlice PieSeries::append(string label, real value)
                 Adds a new slice with \a label and \a value to the pie.
             */
             /*!
                 \qmlmethod bool PieSeries::remove(PieSlice slice)
                 Removes the \a slice from the pie. Returns true if the removal was successfull, false otherwise.
             */
             /*!
                 \qmlmethod PieSeries::clear()
                 Removes all slices from the pie.
             */
             /*!
                 Constructs a series object which is a child of \a parent.
             */
             QPieSeries::QPieSeries(QObject *parent) :
                 QAbstractSeries(*new QPieSeriesPrivate(this),parent)
             {
             }
             /*!
                 Destroys the series and its slices.
             */
             QPieSeries::~QPieSeries()
             {
                 // NOTE: d_prt destroyed by QObject
             }
             /*!
                 Returns QChartSeries::SeriesTypePie.
             */
             QAbstractSeries::SeriesType QPieSeries::type() const
             {
                 return QAbstractSeries::SeriesTypePie;
             }
             /*!
                 Appends a single \a slice to the series.
                 Slice ownership is passed to the series.
                 Returns true if append was succesfull.
             */
             bool QPieSeries::append(QPieSlice* slice)
             {
                 return append(QList<QPieSlice*>() << slice);
             }
             /*!
                 Appends an array of \a slices to the series.
                 Slice ownership is passed to the series.
                 Returns true if append was successfull.
             */
             bool QPieSeries::append(QList<QPieSlice*> slices)
             {
                 Q_D(QPieSeries);
                 if (slices.count() == 0)
                     return false;
                 foreach (QPieSlice* s, slices) {
                     if (!s || d->m_slices.contains(s))
                         return false;
                     if (s->series()) // already added to some series
                         return false;
                 }
                 foreach (QPieSlice* s, slices) {
                     s->setParent(this);
                     QPieSlicePrivate::fromSlice(s)->m_series = this;
                     d->m_slices << s;
                 }
                 d->updateDerivativeData();
                 foreach (QPieSlice* s, slices) {
                     connect(s, SIGNAL(valueChanged()), d, SLOT(sliceValueChanged()));
                     connect(s, SIGNAL(clicked()), d, SLOT(sliceClicked()));
                     connect(s, SIGNAL(hovered(bool)), d, SLOT(sliceHovered(bool)));
                 }
                 emit added(slices);
                 emit countChanged();
                 return true;
             }
             /*!
                 Appends 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)
             {
                 append(slice);
                 return *this;
             }
             /*!
                 Appends a single slice to the series with give \a value and \a label.
                 Slice ownership is passed to the series.
             */
             QPieSlice* QPieSeries::append(QString label, qreal value)
             {
                 QPieSlice* slice = new QPieSlice(label, value);
                 append(slice);
                 return slice;
             }
             /*!
                 Inserts a single \a slice to the series before the slice at \a index position.
                 Slice ownership is passed to the series.
                 Returns true if insert was successfull.
             */
             bool QPieSeries::insert(int index, QPieSlice* slice)
             {
                 Q_D(QPieSeries);
                 if (index < 0 || index > d->m_slices.count())
                     return false;
                 if (!slice || d->m_slices.contains(slice))
                     return false;
                 if (slice->series()) // already added to some series
                     return false;
                 slice->setParent(this);
                 QPieSlicePrivate::fromSlice(slice)->m_series = this;
                 d->m_slices.insert(index, slice);
                 d->updateDerivativeData();
                 connect(slice, SIGNAL(valueChanged()), d, SLOT(sliceValueChanged()));
                 connect(slice, SIGNAL(clicked()), d, SLOT(sliceClicked()));
                 connect(slice, SIGNAL(hovered(bool)), d, SLOT(sliceHovered(bool)));
                 emit added(QList<QPieSlice*>() << slice);
                 emit countChanged();
                 return true;
             }
             /*!
                 Removes a single \a slice from the series and deletes the slice.
                 Do not reference the pointer after this call.
                 Returns true if remove was successfull.
             */
             bool QPieSeries::remove(QPieSlice* slice)
             {
                 Q_D(QPieSeries);
                 if (!d->m_slices.removeOne(slice))
                     return false;
                 d->updateDerivativeData();
                 emit removed(QList<QPieSlice*>() << slice);
                 emit countChanged();
                 delete slice;
                 slice = 0;
                 return true;
             }
             /*!
                 Clears all slices from the series.
             */
             void QPieSeries::clear()
             {
                 Q_D(QPieSeries);
                 if (d->m_slices.count() == 0)
                     return;
                 QList<QPieSlice*> slices = d->m_slices;
                 foreach (QPieSlice* s, d->m_slices) {
                     d->m_slices.removeOne(s);
                     delete s;
                 }
                 d->updateDerivativeData();
                 emit removed(slices);
                 emit countChanged();
             }
             /*!
                 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.
             */
             int QPieSeries::count() const
             {
                 Q_D(const QPieSeries);
                 return d->m_slices.count();
             }
             /*!
                 Returns true is 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::setDonut(bool donut)
+            {
+                Q_D(QPieSeries);
+                d->m_donutChart = donut;
+                d->updateDerivativeData();
+            }
+            bool QPieSeries::donut() const
+            {
+                Q_D(const QPieSeries);
+                return d->m_donutChart;
+            }
             void QPieSeries::setHorizontalPosition(qreal relativePosition)
             {
                 Q_D(QPieSeries);
                 if (relativePosition < 0.0)
                     relativePosition = 0.0;
                 if (relativePosition > 1.0)
                     relativePosition = 1.0;
                 if (!qFuzzyIsNull(d->m_pieRelativeHorPos - relativePosition)) {
                     d->m_pieRelativeHorPos = relativePosition;
                     emit d->horizontalPositionChanged();
                 }
             }
             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 (!qFuzzyIsNull(d->m_pieRelativeVerPos - relativePosition)) {
                     d->m_pieRelativeVerPos = relativePosition;
                     emit d->verticalPositionChanged();
                 }
             }
             qreal QPieSeries::verticalPosition() const
             {
                 Q_D(const QPieSeries);
                 return d->m_pieRelativeVerPos;
             }
             void QPieSeries::setPieSize(qreal relativeSize)
             {
                 Q_D(QPieSeries);
                 if (relativeSize < 0.0)
                     relativeSize = 0.0;
                 if (relativeSize > 1.0)
                     relativeSize = 1.0;
                 if (!qFuzzyIsNull(d->m_pieRelativeSize - relativeSize)) {
                     d->m_pieRelativeSize = relativeSize;
                     emit d->pieSizeChanged();
                 }
             }
             qreal QPieSeries::pieSize() const
             {
                 Q_D(const QPieSeries);
                 return d->m_pieRelativeSize;
             }
             void QPieSeries::setPieStartAngle(qreal angle)
             {
                 Q_D(QPieSeries);
                 if (qFuzzyIsNull(d->m_pieStartAngle - angle))
                     return;
                 d->m_pieStartAngle = angle;
                 d->updateDerivativeData();
                 emit d->pieStartAngleChanged();
             }
             qreal QPieSeries::pieStartAngle() const
             {
                 Q_D(const QPieSeries);
                 return d->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)
             {
                 Q_D(QPieSeries);
                 if (qFuzzyIsNull(d->m_pieEndAngle - angle))
                     return;
                 d->m_pieEndAngle = angle;
                 d->updateDerivativeData();
                 emit d->pieEndAngleChanged();
             }
             /*!
                 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
             {
                 Q_D(const QPieSeries);
                 return d->m_pieEndAngle;
             }
             /*!
                 Sets the all the slice labels \a visible or invisible.
                 Note that this affects only the current slices in the series.
                 If user adds a new slice the default label visibility is false.
                 \sa QPieSlice::isLabelVisible(), QPieSlice::setLabelVisible()
             */
             void QPieSeries::setLabelsVisible(bool visible)
             {
                 Q_D(QPieSeries);
                 foreach (QPieSlice* s, d->m_slices)
                     s->setLabelVisible(visible);
             }
             ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
             QPieSeriesPrivate::QPieSeriesPrivate(QPieSeries *parent) :
                 QAbstractSeriesPrivate(parent),
                 m_pieRelativeHorPos(0.5),
                 m_pieRelativeVerPos(0.5),
                 m_pieRelativeSize(0.7),
                 m_pieStartAngle(0),
                 m_pieEndAngle(360),
-                m_sum(0)
+                m_sum(0),
+                m_donutChart(false)
             {
             }
             QPieSeriesPrivate::~QPieSeriesPrivate()
             {
             }
             void QPieSeriesPrivate::updateDerivativeData()
             {
                 // calculate sum of all slices
                 qreal sum = 0;
                 foreach (QPieSlice* s, m_slices)
                     sum += s->value();
                 if (!qFuzzyIsNull(m_sum - sum)) {
                     m_sum = sum;
                     emit q_func()->sumChanged();
                 }
                 // nothing to show..
                 if (qFuzzyIsNull(m_sum))
                     return;
                 // update slice attributes
                 qreal sliceAngle = m_pieStartAngle;
                 qreal pieSpan = m_pieEndAngle - m_pieStartAngle;
                 QVector<QPieSlice*> changed;
                 foreach (QPieSlice* s, m_slices) {
                     QPieSlicePrivate *d = QPieSlicePrivate::fromSlice(s);
                     d->setPercentage(s->value() / m_sum);
                     d->setStartAngle(sliceAngle);
                     d->setAngleSpan(pieSpan * s->percentage());
+                    d->m_data.m_donut = m_donutChart;
                     sliceAngle += s->angleSpan();
                 }
                 emit calculatedDataChanged();
             }
             QPieSeriesPrivate* QPieSeriesPrivate::fromSeries(QPieSeries *series)
             {
                 return series->d_func();
             }
             void QPieSeriesPrivate::sliceValueChanged()
             {
                 Q_ASSERT(m_slices.contains(qobject_cast<QPieSlice *>(sender())));
                 updateDerivativeData();
             }
             void QPieSeriesPrivate::sliceClicked()
             {
                 QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
                 Q_ASSERT(m_slices.contains(slice));
                 Q_Q(QPieSeries);
                 emit q->clicked(slice);
             }
             void QPieSeriesPrivate::sliceHovered(bool state)
             {
                 QPieSlice* slice = qobject_cast<QPieSlice *>(sender());
                 Q_ASSERT(m_slices.contains(slice));
                 Q_Q(QPieSeries);
                 emit q->hovered(slice, state);
             }
             void QPieSeriesPrivate::scaleDomain(Domain& domain)
             {
                 Q_UNUSED(domain);
                 // does not apply to pie
             }
             Chart* QPieSeriesPrivate::createGraphics(ChartPresenter* presenter)
             {
                 Q_Q(QPieSeries);
                 PieChartItem* pie = new PieChartItem(q,presenter);
                 if(presenter->animationOptions().testFlag(QChart::SeriesAnimations)) {
                     presenter->animator()->addAnimation(pie);
                 }
                 presenter->chartTheme()->decorate(q, presenter->dataSet()->seriesIndex(q));
                 return pie;
             }
             QList<LegendMarker*> QPieSeriesPrivate::createLegendMarker(QLegend* legend)
             {
                 Q_Q(QPieSeries);
                 QList<LegendMarker*> markers;
                 foreach(QPieSlice* slice, q->slices()) {
                     PieLegendMarker* marker = new PieLegendMarker(q,slice,legend);
                     markers << marker;
                 }
                 return markers;
             }
             void QPieSeriesPrivate::initializeAxisX(QAbstractAxis* axis)
             {
                 Q_UNUSED(axis);
             }
             void QPieSeriesPrivate::initializeAxisY(QAbstractAxis* axis)
             {
                 Q_UNUSED(axis);
             }
             QAbstractAxis::AxisType QPieSeriesPrivate::defaultAxisXType() const
             {
                 return QAbstractAxis::AxisTypeNoAxis;
             }
             QAbstractAxis::AxisType QPieSeriesPrivate::defaultAxisYType() const
             {
                 return QAbstractAxis::AxisTypeNoAxis;
             }
             #include "moc_qpieseries.cpp"
             #include "moc_qpieseries_p.cpp"
             QTCOMMERCIALCHART_END_NAMESPACE

src/piechart/qpieseries.h +3 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 Digia Plc
             ** All rights reserved.
             ** For any questions to Digia, please use contact form at http://qt.digia.com
             **
             ** This file is part of the Qt Commercial Charts Add-on.
             **
             ** $QT_BEGIN_LICENSE$
             ** Licensees holding valid Qt Commercial licenses may use this file in
             ** accordance with the Qt Commercial License Agreement provided with the
             ** Software or, alternatively, in accordance with the terms contained in
             ** a written agreement between you and Digia.
             **
             ** If you have questions regarding the use of this file, please use
             ** contact form at http://qt.digia.com
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             #ifndef PIESERIES_H
             #define PIESERIES_H
             #include <qabstractseries.h>
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             class QPieSeriesPrivate;
             class QPieSlice;
             class QTCOMMERCIALCHART_EXPORT QPieSeries : public QAbstractSeries
             {
                 Q_OBJECT
                 Q_PROPERTY(qreal horizontalPosition READ horizontalPosition WRITE setHorizontalPosition)
                 Q_PROPERTY(qreal verticalPosition READ verticalPosition WRITE setVerticalPosition)
                 Q_PROPERTY(qreal size READ pieSize WRITE setPieSize)
                 Q_PROPERTY(qreal startAngle READ pieStartAngle WRITE setPieStartAngle)
                 Q_PROPERTY(qreal endAngle READ pieEndAngle WRITE setPieEndAngle)
                 Q_PROPERTY(int count READ count NOTIFY countChanged)
                 Q_PROPERTY(qreal sum READ sum NOTIFY sumChanged)
             public:
                 explicit QPieSeries(QObject *parent = 0);
                 virtual ~QPieSeries();
                 QAbstractSeries::SeriesType type() const;
                 bool append(QPieSlice* slice);
                 bool append(QList<QPieSlice*> slices);
                 QPieSeries& operator << (QPieSlice* slice);
                 QPieSlice* append(QString label, qreal value);
                 bool insert(int index, QPieSlice* slice);
                 bool remove(QPieSlice* slice);
                 void clear();
                 QList<QPieSlice*> slices() const;
                 int count() const;
                 bool isEmpty() const;
                 qreal sum() const;
+                void setDonut(bool donut = true);
+                bool donut() const;
                 void setHorizontalPosition(qreal relativePosition);
                 qreal horizontalPosition() const;
                 void setVerticalPosition(qreal relativePosition);
                 qreal verticalPosition() const;
                 void setPieSize(qreal relativeSize);
                 qreal pieSize() const;
                 void setPieStartAngle(qreal startAngle);
                 qreal pieStartAngle() const;
                 void setPieEndAngle(qreal endAngle);
                 qreal pieEndAngle() const;
                 void setLabelsVisible(bool visible = true);
             Q_SIGNALS:
                 void added(QList<QPieSlice*> slices);
                 void removed(QList<QPieSlice*> slices);
                 void clicked(QPieSlice* slice);
                 void hovered(QPieSlice* slice, bool state);
                 void countChanged();
                 void sumChanged();
             private:
                 Q_DECLARE_PRIVATE(QPieSeries)
                 Q_DISABLE_COPY(QPieSeries)
             };
             QTCOMMERCIALCHART_END_NAMESPACE
             #endif // PIESERIES_H

src/piechart/qpieseries_p.h +1 0

             /****************************************************************************
             **
             ** Copyright (C) 2012 Digia Plc
             ** All rights reserved.
             ** For any questions to Digia, please use contact form at http://qt.digia.com
             **
             ** This file is part of the Qt Commercial Charts Add-on.
             **
             ** $QT_BEGIN_LICENSE$
             ** Licensees holding valid Qt Commercial licenses may use this file in
             ** accordance with the Qt Commercial License Agreement provided with the
             ** Software or, alternatively, in accordance with the terms contained in
             ** a written agreement between you and Digia.
             **
             ** If you have questions regarding the use of this file, please use
             ** contact form at http://qt.digia.com
             ** $QT_END_LICENSE$
             **
             ****************************************************************************/
             //  W A R N I N G
             //  -------------
             //
             // This file is not part of the QtCommercial Chart API.  It exists purely as an
             // implementation detail.  This header file may change from version to
             // version without notice, or even be removed.
             //
             // We mean it.
             #ifndef QPIESERIES_P_H
             #define QPIESERIES_P_H
             #include "qpieseries.h"
             #include "qabstractseries_p.h"
             QTCOMMERCIALCHART_BEGIN_NAMESPACE
             class QLegendPrivate;
             class QPieSeriesPrivate : public QAbstractSeriesPrivate
             {
                 Q_OBJECT
             public:
                 QPieSeriesPrivate(QPieSeries *parent);
                 ~QPieSeriesPrivate();
                 void scaleDomain(Domain& domain);
                 Chart* createGraphics(ChartPresenter *presenter);
                 QList<LegendMarker*> createLegendMarker(QLegend *legend);
                 void initializeAxisX(QAbstractAxis* axis);
                 void initializeAxisY(QAbstractAxis* axis);
                 QAbstractAxis::AxisType defaultAxisXType() const;
                 QAbstractAxis::AxisType defaultAxisYType() const;
                 void updateDerivativeData();
                 static QPieSeriesPrivate* fromSeries(QPieSeries *series);
             signals:
                 void calculatedDataChanged();
                 void pieSizeChanged();
                 void pieStartAngleChanged();
                 void pieEndAngleChanged();
                 void horizontalPositionChanged();
                 void verticalPositionChanged();
             public Q_SLOTS:
                 void sliceValueChanged();
                 void sliceClicked();
                 void sliceHovered(bool state);
             private:
                 QList<QPieSlice*> m_slices;
                 qreal m_pieRelativeHorPos;
                 qreal m_pieRelativeVerPos;
                 qreal m_pieRelativeSize;
                 qreal m_pieStartAngle;
                 qreal m_pieEndAngle;
                 qreal m_sum;
+                bool m_donutChart;
             private:
                 friend class QLegendPrivate;
                 Q_DECLARE_PUBLIC(QPieSeries)
             };
             QTCOMMERCIALCHART_END_NAMESPACE
             #endif // QPIESERIES_P_H

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