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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include "domain_p.h"
#include "qabstractaxis_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
Domain::Domain(QObject* parent) : QObject(parent),
m_minX(0),
m_maxX(0),
m_minY(0),
m_maxY(0)
{
}
Domain::~Domain()
{
}
void Domain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
{
bool axisXChanged = false;
bool axisYChanged = false;
if (!qFuzzyIsNull(m_minX - minX) || !qFuzzyIsNull(m_maxX - maxX)) {
m_minX=minX;
m_maxX=maxX;
axisXChanged=true;
emit rangeXChanged(m_minX,m_maxX);
}
if (!qFuzzyIsNull(m_minY - minY) || !qFuzzyIsNull(m_maxY - maxY)) {
m_minY=minY;
m_maxY=maxY;
axisYChanged=true;
emit rangeYChanged(m_minY,m_maxY);
}
if(axisXChanged || axisYChanged) {
emit updated();
}
}
void Domain::setRangeX(qreal min, qreal max)
{
setRange(min,max,m_minY, m_maxY);
}
void Domain::setRangeY(qreal min, qreal max)
{
setRange(m_minX, m_maxX, min, max);
}
void Domain::setMinX(qreal min)
{
setRange(min, m_maxX, m_minY, m_maxY);
}
void Domain::setMaxX(qreal max)
{
setRange(m_minX, max, m_minY, m_maxY);
}
void Domain::setMinY(qreal min)
{
setRange(m_minX, m_maxX, min, m_maxY);
}
void Domain::setMaxY(qreal max)
{
setRange(m_minX, m_maxX, m_minY, max);
}
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;
}
bool Domain::isEmpty() const
{
return qFuzzyIsNull(spanX()) || qFuzzyIsNull(spanY());
}
void Domain::zoomIn(const QRectF& rect, const QSizeF& size)
{
qreal dx = spanX() / size.width();
qreal dy = spanY() / size.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
maxX = minX + dx * rect.right();
minX = minX + dx * rect.left();
minY = maxY - dy * rect.bottom();
maxY = maxY - dy * rect.top();
setRange(minX,maxX,minY,maxY);
}
void Domain::zoomOut(const QRectF& rect, const QSizeF& size)
{
qreal dx = spanX() / rect.width();
qreal dy = spanY() / rect.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
minX = maxX - dx * rect.right();
maxX = minX + dx * size.width();
maxY = minY + dy * rect.bottom();
minY = maxY - dy * size.height();
setRange(minX,maxX,minY,maxY);
}
void Domain::move(qreal dx,qreal dy,const QSizeF& size)
{
qreal x = spanX() / size.width();
qreal y = spanY() / size.height();
qreal maxX = m_maxX;
qreal minX = m_minX;
qreal minY = m_minY;
qreal maxY = m_maxY;
if(dx!=0) {
minX = minX + x * dx;
maxX = maxX + x * dx;
}
if(dy!=0) {
minY = minY + y * dy;
maxY = maxY + y * dy;
}
setRange(minX,maxX,minY,maxY);
}
void Domain::emitUpdated()
{
emit updated();
}
void Domain::handleAxisUpdated()
{
QAbstractAxisPrivate* axis = qobject_cast<QAbstractAxisPrivate*>(sender());
Q_ASSERT(axis);
axis->setDirty(false);
if(axis->orientation()==Qt::Horizontal){
setRangeX(axis->min(),axis->max());
}else if(axis->orientation()==Qt::Vertical){
setRangeY(axis->min(),axis->max());
}
}
bool QTCOMMERCIALCHART_AUTOTEST_EXPORT operator== (const Domain &domain1, const Domain &domain2)
{
return (qFuzzyIsNull(domain1.m_maxX - domain2.m_maxX) &&
qFuzzyIsNull(domain1.m_maxY - domain2.m_maxY) &&
qFuzzyIsNull(domain1.m_minX - domain2.m_minX) &&
qFuzzyIsNull(domain1.m_minY - domain2.m_minY));
}
bool QTCOMMERCIALCHART_AUTOTEST_EXPORT operator!= (const Domain &domain1, const Domain &domain2)
{
return !(domain1 == domain2);
}
QDebug QTCOMMERCIALCHART_AUTOTEST_EXPORT operator<<(QDebug dbg, const Domain &domain)
{
dbg.nospace() << "Domain("<<domain.m_minX<<','<<domain.m_maxX<<','<<domain.m_minY<<','<<domain.m_maxY<<')';
return dbg.maybeSpace();
}
#include "moc_domain_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE
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