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