domain.cpp
45 lines
| 767 B
| text/x-c
|
CppLexer
/ src / domain.cpp
Michal Klocek
|
r131 | #include "domain_p.h" | ||
| QTCOMMERCIALCHART_BEGIN_NAMESPACE | ||||
| Domain::Domain(): | ||||
| m_minX(0), | ||||
| m_maxX(0), | ||||
| m_minY(0), | ||||
| m_maxY(0) | ||||
| { | ||||
| } | ||||
| Domain::~Domain() | ||||
| { | ||||
| // TODO Auto-generated destructor stub | ||||
| } | ||||
| qreal Domain::spanX() const | ||||
| { | ||||
| Q_ASSERT(m_maxX >= m_minX); | ||||
| return m_maxX - m_minX; | ||||
| } | ||||
| qreal Domain::spanY() const | ||||
| { | ||||
| Q_ASSERT(m_maxY >= m_minY); | ||||
| return m_maxY - m_minY; | ||||
| } | ||||
|
Michal Klocek
|
r139 | Domain Domain::subDomain(const QRectF& rect, qreal maxWidth,qreal maxHeight) const | ||
|
Michal Klocek
|
r131 | { | ||
| Domain 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; | ||||
| } | ||||
| QTCOMMERCIALCHART_END_NAMESPACE | ||||