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/****************************************************************************
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**
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** Copyright (C) 2014 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.io
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**
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** This file is part of the Qt Charts module.
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**
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** Licensees holding valid commercial license for Qt may use this file in
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** accordance with the Qt License Agreement provided with the Software
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** or, alternatively, in accordance with the terms contained in a written
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** 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.io
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**
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****************************************************************************/
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#include <private/xydomain_p.h>
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#include <private/qabstractaxis_p.h>
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#include <QtCore/QtMath>
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QT_CHARTS_BEGIN_NAMESPACE
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XYDomain::XYDomain(QObject *parent)
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: AbstractDomain(parent)
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{
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}
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XYDomain::~XYDomain()
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{
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}
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void XYDomain::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 (!qFuzzyCompare(m_minX, minX) || !qFuzzyCompare(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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if(!m_signalsBlocked)
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emit rangeHorizontalChanged(m_minX, m_maxX);
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}
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if (!qFuzzyCompare(m_minY, minY) || !qFuzzyCompare(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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if(!m_signalsBlocked)
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emit rangeVerticalChanged(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 XYDomain::zoomIn(const QRectF &rect)
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{
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storeZoomReset();
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qreal dx = spanX() / m_size.width();
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qreal dy = spanY() / m_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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if ((maxX - minX) == spanX()) {
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minX = m_minX;
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maxX = m_maxX;
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}
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if ((maxY - minY) == spanY()) {
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minY = m_minY;
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maxY = m_maxY;
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}
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setRange(minX, maxX, minY, maxY);
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}
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void XYDomain::zoomOut(const QRectF &rect)
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{
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storeZoomReset();
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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 * m_size.width();
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maxY = minY + dy * rect.bottom();
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minY = maxY - dy * m_size.height();
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if ((maxX - minX) == spanX()) {
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minX = m_minX;
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maxX = m_maxX;
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}
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if ((maxY - minY) == spanY()) {
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minY = m_minY;
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maxY = m_maxY;
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}
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setRange(minX, maxX, minY, maxY);
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}
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void XYDomain::move(qreal dx, qreal dy)
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{
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qreal x = spanX() / m_size.width();
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qreal y = spanY() / m_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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QPointF XYDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const
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{
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const qreal deltaX = m_size.width() / (m_maxX - m_minX);
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const qreal deltaY = m_size.height() / (m_maxY - m_minY);
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qreal x = (point.x() - m_minX) * deltaX;
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qreal y = (point.y() - m_minY) * -deltaY + m_size.height();
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ok = true;
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return QPointF(x, y);
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}
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QVector<QPointF> XYDomain::calculateGeometryPoints(const QList<QPointF> &vector) const
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{
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const qreal deltaX = m_size.width() / (m_maxX - m_minX);
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const qreal deltaY = m_size.height() / (m_maxY - m_minY);
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QVector<QPointF> result;
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result.resize(vector.count());
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for (int i = 0; i < vector.count(); ++i) {
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qreal x = (vector[i].x() - m_minX) * deltaX;
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qreal y = (vector[i].y() - m_minY) * -deltaY + m_size.height();
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result[i].setX(x);
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result[i].setY(y);
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}
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return result;
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}
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QPointF XYDomain::calculateDomainPoint(const QPointF &point) const
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{
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const qreal deltaX = m_size.width() / (m_maxX - m_minX);
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const qreal deltaY = m_size.height() / (m_maxY - m_minY);
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qreal x = point.x() / deltaX + m_minX;
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qreal y = (point.y() - m_size.height()) / (-deltaY) + m_minY;
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return QPointF(x, y);
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}
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// operators
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bool QT_CHARTS_AUTOTEST_EXPORT operator== (const XYDomain &domain1, const XYDomain &domain2)
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{
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return (qFuzzyCompare(domain1.m_maxX, domain2.m_maxX)
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&& qFuzzyCompare(domain1.m_maxY, domain2.m_maxY)
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&& qFuzzyCompare(domain1.m_minX, domain2.m_minX)
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&& qFuzzyCompare(domain1.m_minY, domain2.m_minY));
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}
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bool QT_CHARTS_AUTOTEST_EXPORT operator!= (const XYDomain &domain1, const XYDomain &domain2)
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{
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return !(domain1 == domain2);
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}
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QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const XYDomain &domain)
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{
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#ifdef QT_NO_TEXTSTREAM
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Q_UNUSED(domain)
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#else
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dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
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#endif
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return dbg.maybeSpace();
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}
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#include "moc_xydomain_p.cpp"
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QT_CHARTS_END_NAMESPACE
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