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Clone from http://code.qt.io/qt/qtcharts.git

Adds isEmpty to domain
Michal Klocek -
r388:5bb469f288f8
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@@ -26,6 +26,11 qreal Domain::spanY() const
26 26 return m_maxY - m_minY;
27 27 }
28 28
29 bool Domain::isEmpty() const
30 {
31 return spanX()==0 || spanY()==0;
32 }
33
29 34 Domain Domain::subDomain(const QRectF& rect, qreal maxWidth,qreal maxHeight) const
30 35 {
31 36 Domain domain;
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@@ -12,6 +12,7 public:
12 12
13 13 qreal spanX() const;
14 14 qreal spanY() const;
15 bool isEmpty() const;
15 16
16 17 friend bool operator== (const Domain &domain1, const Domain &domain2);
17 18 friend bool operator!= (const Domain &domain1, const Domain &domain2);
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