HG_REPOSITORIES/LPP/INSTRUMENTATION/USERS/JEANDET/qtcharts Files · src/domain.cpp

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             domain.cpp
        
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      #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;

      }

      Domain Domain::subDomain(const QRectF& rect, qreal maxWidth,qreal maxHeight) const

      {

        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

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				#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;
				}

				Domain Domain::subDomain(const QRectF& rect, qreal maxWidth,qreal maxHeight) const
				{
				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