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#include "domain_p.h"
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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Domain::Domain(QObject* parent):QObject(parent),
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m_minX(0),
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m_maxX(0),
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m_minY(0),
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m_maxY(0)
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{
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}
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Domain::~Domain()
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{
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}
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void Domain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
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{
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bool changed = false;
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if(m_minX!=minX || m_maxX!=maxX)
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{
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m_minX=minX;
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m_maxX=maxX;
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changed=true;
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emit rangeXChanged(minX,maxX);
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}
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if(m_minY!=minY || m_maxY!=maxY){
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m_minY=minY;
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m_maxY=maxY;
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changed=true;
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emit rangeYChanged(minY,maxY);
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}
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if(changed){
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emit domainChanged(m_minX, m_maxX, m_minY, m_maxY);
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}
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}
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void Domain::setRangeX(qreal min, qreal max)
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{
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setRange(min,max,m_minY, m_maxY);
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}
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void Domain::setRangeY(qreal min, qreal max)
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{
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setRange(m_minX, m_maxX, min, max);
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}
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void Domain::setMinX(qreal min)
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{
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setRange(min, m_maxX, m_minY, m_maxY);
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}
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void Domain::setMaxX(qreal max)
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{
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setRange(m_minX, max, m_minY, m_maxY);
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}
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void Domain::setMinY(qreal min)
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{
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setRange(m_minX, m_maxX, min, m_maxY);
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}
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void Domain::setMaxY(qreal max)
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{
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setRange(m_minX, m_maxX, m_minY, max);
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}
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qreal Domain::spanX() const
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{
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Q_ASSERT(m_maxX >= m_minX);
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return m_maxX - m_minX;
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}
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qreal Domain::spanY() const
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{
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Q_ASSERT(m_maxY >= m_minY);
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return m_maxY - m_minY;
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}
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bool Domain::isEmpty() const
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{
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return spanX()==0 || spanY()==0;
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}
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void Domain::zoomIn(const QRectF& rect, const QSizeF& size)
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{
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qreal dx = spanX() / size.width();
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qreal dy = spanY() / size.height();
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m_maxX = m_minX + dx * rect.right();
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m_minX = m_minX + dx * rect.left();
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m_minY = m_maxY - dy * rect.bottom();
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m_maxY = m_maxY - dy * rect.top();
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emit domainChanged(m_minX, m_maxX, m_minY, m_maxY);
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emit rangeXChanged(m_minX, m_maxX);
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emit rangeYChanged(m_minY, m_maxY);
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}
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void Domain::zoomOut(const QRectF& rect, const QSizeF& size)
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{
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qreal dx = spanX() / rect.width();
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qreal dy = spanY() / rect.height();
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m_minX = m_maxX - dx * rect.right();
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m_maxX = m_minX + dx * size.width();
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m_maxY = m_minY + dy * rect.bottom();
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m_minY = m_maxY - dy * size.height();
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emit domainChanged(m_minX, m_maxX, m_minY, m_maxY);
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emit rangeXChanged(m_minX, m_maxX);
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emit rangeYChanged(m_minY, m_maxY);
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}
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void Domain::handleAxisRangeXChanged(qreal min,qreal max)
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{
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setRangeX(min,max);
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}
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void Domain::handleAxisRangeYChanged(qreal min,qreal max)
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{
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setRangeY(min,max);
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}
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bool operator== (const Domain &domain1, const Domain &domain2)
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{
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return (domain1.m_maxX == domain2.m_maxX &&
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domain1.m_maxY == domain2.m_maxY &&
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domain1.m_minX == domain2.m_minX &&
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domain1.m_minY == domain2.m_minY);
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}
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bool operator!= (const Domain &domain1, const Domain &domain2)
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{
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return !(domain1 == domain2);
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}
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QDebug operator<<(QDebug dbg, const Domain &domain)
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{
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dbg.nospace() << "Domain("<<domain.m_minX<<','<<domain.m_maxX<<','<<domain.m_minY<<','<<domain.m_maxY<<')';
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return dbg.maybeSpace();
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}
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#include "moc_domain_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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