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29 
30 //  W A R N I N G
31 //  -------------
32 //
33 // This file is not part of the Qt Chart API.  It exists purely as an
34 // implementation detail.  This header file may change from version to
35 // version without notice, or even be removed.
36 //
37 // We mean it.
38 
39 #ifndef PIESLICEDATA_P_H
40 #define PIESLICEDATA_P_H
41 
42 #include <QtCharts/QChartGlobal>
43 #include <QtCharts/QPieSlice>
44 #include <QtGui/QPen>
45 #include <QtGui/QBrush>
46 
47 QT_CHARTS_BEGIN_NAMESPACE
48 
49 template <class T>
50 class Themed : public T
51 {
52 public:
Themed()53     Themed(): m_isThemed(true) {}
54 
55     inline T &operator=(const T &other) { return T::operator =(other); }
56 
57     inline bool operator!=(const T &other) const { return T::operator !=(other); }
58     inline bool operator!=(const Themed &other) const
59     {
60         if (T::operator !=(other))
61             return true;
62 
63         if (m_isThemed != other.m_isThemed)
64             return true;
65 
66         return false;
67     }
68 
setThemed(bool state)69     inline void setThemed(bool state) { m_isThemed = state; }
isThemed()70     inline bool isThemed() const { return m_isThemed; }
71 
72 private:
73     bool m_isThemed;
74 };
75 
76 class PieSliceData
77 {
78 public:
PieSliceData()79     PieSliceData() :
80         m_value(0),
81         m_isExploded(false),
82         m_explodeDistanceFactor(0.15),
83         m_isLabelVisible(false),
84         m_labelPosition(QPieSlice::LabelOutside),
85         m_labelArmLengthFactor(0.15),
86         m_percentage(0),
87         m_radius(0),
88         m_startAngle(0),
89         m_angleSpan(0),
90         m_holeRadius(0)
91     {
92     }
93 
94     bool operator!=(const PieSliceData &other) const {
95         if (!qFuzzyIsNull(m_value - other.m_value))
96             return true;
97 
98         if (m_slicePen != other.m_slicePen ||
99             m_sliceBrush != other.m_sliceBrush)
100             return true;
101 
102         if (m_isExploded != other.m_isExploded ||
103             !qFuzzyIsNull(m_explodeDistanceFactor - other.m_explodeDistanceFactor))
104             return true;
105 
106         if (m_isLabelVisible != other.m_isLabelVisible ||
107             m_labelText != other.m_labelText ||
108             m_labelFont != other.m_labelFont ||
109             m_labelPosition != other.m_labelPosition ||
110             !qFuzzyIsNull(m_labelArmLengthFactor - other.m_labelArmLengthFactor) ||
111             m_labelBrush != other.m_labelBrush)
112             return true;
113 
114         if (!qFuzzyIsNull(m_percentage - other.m_percentage) ||
115             m_center != other.m_center ||
116             !qFuzzyIsNull(m_radius - other.m_radius) ||
117             !qFuzzyIsNull(m_startAngle - other.m_startAngle) ||
118             !qFuzzyIsNull(m_angleSpan - other.m_angleSpan))
119             return true;
120 
121         return false;
122     }
123 
124     qreal m_value;
125 
126     Themed<QPen> m_slicePen;
127     Themed<QBrush> m_sliceBrush;
128 
129     bool m_isExploded;
130     qreal m_explodeDistanceFactor;
131 
132     bool m_isLabelVisible;
133     QString m_labelText;
134     Themed<QFont> m_labelFont;
135     QPieSlice::LabelPosition m_labelPosition;
136     qreal m_labelArmLengthFactor;
137     Themed<QBrush> m_labelBrush;
138 
139     qreal m_percentage;
140     QPointF m_center;
141     qreal m_radius;
142     qreal m_startAngle;
143     qreal m_angleSpan;
144 
145     qreal m_holeRadius;
146 };
147 
148 QT_CHARTS_END_NAMESPACE
149 
150 #endif // PIESLICEDATA_P_H
151