| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt 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 PIECHARTITEM_H |
| #define PIECHARTITEM_H |
| |
| #include <QtCharts/QPieSeries> |
| #include <private/chartitem_p.h> |
| #include <private/piesliceitem_p.h> |
| #include <QtCore/QPointer> |
| #include <QtCharts/private/qchartglobal_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| class QGraphicsItem; |
| QT_END_NAMESPACE |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| class QPieSlice; |
| class ChartPresenter; |
| class PieAnimation; |
| |
| class Q_CHARTS_PRIVATE_EXPORT PieChartItem : public ChartItem |
| { |
| Q_OBJECT |
| |
| public: |
| explicit PieChartItem(QPieSeries *series, QGraphicsItem* item = 0); |
| ~PieChartItem(); |
| |
| // from QGraphicsItem |
| QRectF boundingRect() const { return m_rect; } |
| void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *) {} |
| |
| protected: |
| void hoverEnterEvent(QGraphicsSceneHoverEvent *event); |
| void hoverLeaveEvent(QGraphicsSceneHoverEvent *event); |
| void mousePressEvent(QGraphicsSceneMouseEvent *event); |
| void mouseReleaseEvent(QGraphicsSceneMouseEvent *event); |
| void mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event); |
| |
| public Q_SLOTS: |
| // from Chart |
| virtual void handleDomainUpdated(); |
| |
| void updateLayout(); |
| void handleSlicesAdded(QList<QPieSlice *> slices); |
| void handleSlicesRemoved(QList<QPieSlice *> slices); |
| void handleSliceChanged(); |
| void handleSeriesVisibleChanged(); |
| void handleOpacityChanged(); |
| |
| void setAnimation(PieAnimation *animation); |
| ChartAnimation *animation() const; |
| |
| // From ChartItem |
| void cleanup(); |
| private: |
| PieSliceData updateSliceGeometry(QPieSlice *slice); |
| |
| private: |
| QHash<QPieSlice *, PieSliceItem *> m_sliceItems; |
| QPointer<QPieSeries> m_series; |
| QRectF m_rect; |
| QPointF m_pieCenter; |
| qreal m_pieRadius; |
| qreal m_holeSize; |
| PieAnimation *m_animation; |
| |
| }; |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #endif // PIECHARTITEM_H |