plotdomain.cpp
45 lines
| 806 B
| text/x-c
|
CppLexer
/ src / plotdomain.cpp
Michal Klocek
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r67 | #include "plotdomain_p.h" | ||
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Michal Klocek
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r25 | |||
Tero Ahola
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r30 | QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||
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Michal Klocek
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r25 | |||
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Michal Klocek
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r67 | PlotDomain::PlotDomain(): | ||
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Michal Klocek
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r25 | m_minX(0), | ||
| m_maxX(0), | ||||
| m_minY(0), | ||||
| m_maxY(0) | ||||
| { | ||||
| } | ||||
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Michal Klocek
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r67 | PlotDomain::~PlotDomain() | ||
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Michal Klocek
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r25 | { | ||
| // TODO Auto-generated destructor stub | ||||
| } | ||||
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Michal Klocek
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r67 | qreal PlotDomain::spanX() const | ||
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Michal Klocek
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r25 | { | ||
| Q_ASSERT(m_maxX >= m_minX); | ||||
| return m_maxX - m_minX; | ||||
| } | ||||
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Michal Klocek
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r67 | qreal PlotDomain::spanY() const | ||
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Michal Klocek
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r25 | { | ||
| Q_ASSERT(m_maxY >= m_minY); | ||||
| return m_maxY - m_minY; | ||||
| } | ||||
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Michal Klocek
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r76 | PlotDomain PlotDomain::subDomain(const QRect& rect, qreal maxWidth,qreal maxHeight) const | ||
| { | ||||
| PlotDomain domain; | ||||
| qreal dx = spanX() / maxWidth; | ||||
| qreal dy = spanY() / maxHeight; | ||||
| domain.m_minX = m_minX + dx * rect.left(); | ||||
| domain.m_maxX = m_minX + dx * rect.right(); | ||||
| domain.m_minY = m_maxY - dy * rect.bottom(); | ||||
| domain.m_maxY = m_maxY - dy * rect.top(); | ||||
| return domain; | ||||
| } | ||||
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Tero Ahola
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r30 | QTCOMMERCIALCHART_END_NAMESPACE | ||