|
|
/******************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2015 The Qt Company Ltd.
|
|
|
** Contact: http://www.qt.io/licensing/
|
|
|
**
|
|
|
** This file is part of the Qt Charts module.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE:COMM$
|
|
|
**
|
|
|
** Commercial License Usage
|
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
|
** accordance with the commercial license agreement provided with the
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
|
** a written agreement between you and The Qt Company. For licensing terms
|
|
|
** and conditions see http://www.qt.io/terms-conditions. For further
|
|
|
** information use the contact form at http://www.qt.io/contact-us.
|
|
|
**
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
******************************************************************************/
|
|
|
|
|
|
#include <private/logxlogydomain_p.h>
|
|
|
#include <private/qabstractaxis_p.h>
|
|
|
#include <QtCharts/QLogValueAxis>
|
|
|
#include <QtCore/QtMath>
|
|
|
#include <cmath>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
|
|
|
LogXLogYDomain::LogXLogYDomain(QObject *parent)
|
|
|
: AbstractDomain(parent),
|
|
|
m_logLeftX(0),
|
|
|
m_logRightX(1),
|
|
|
m_logBaseX(10),
|
|
|
m_logLeftY(0),
|
|
|
m_logRightY(1),
|
|
|
m_logBaseY(10)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
LogXLogYDomain::~LogXLogYDomain()
|
|
|
{
|
|
|
}
|
|
|
|
|
|
void LogXLogYDomain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
|
|
|
{
|
|
|
bool axisXChanged = false;
|
|
|
bool axisYChanged = false;
|
|
|
|
|
|
adjustLogDomainRanges(minX, maxX);
|
|
|
adjustLogDomainRanges(minY, maxY);
|
|
|
|
|
|
if (!qFuzzyIsNull(m_minX - minX) || !qFuzzyIsNull(m_maxX - maxX)) {
|
|
|
m_minX = minX;
|
|
|
m_maxX = maxX;
|
|
|
axisXChanged = true;
|
|
|
qreal logMinX = std::log10(m_minX) / std::log10(m_logBaseX);
|
|
|
qreal logMaxX = std::log10(m_maxX) / std::log10(m_logBaseX);
|
|
|
m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX;
|
|
|
m_logRightX = logMinX > logMaxX ? logMinX : logMaxX;
|
|
|
if(!m_signalsBlocked)
|
|
|
emit rangeHorizontalChanged(m_minX, m_maxX);
|
|
|
}
|
|
|
|
|
|
if (!qFuzzyIsNull(m_minY - minY) || !qFuzzyIsNull(m_maxY - maxY)) {
|
|
|
m_minY = minY;
|
|
|
m_maxY = maxY;
|
|
|
axisYChanged = true;
|
|
|
qreal logMinY = std::log10(m_minY) / std::log10(m_logBaseY);
|
|
|
qreal logMaxY = std::log10(m_maxY) / std::log10(m_logBaseY);
|
|
|
m_logLeftY = logMinY < logMaxY ? logMinY : logMaxY;
|
|
|
m_logRightY = logMinY > logMaxY ? logMinY : logMaxY;
|
|
|
if (!m_signalsBlocked)
|
|
|
emit rangeVerticalChanged(m_minY, m_maxY);
|
|
|
}
|
|
|
|
|
|
if (axisXChanged || axisYChanged)
|
|
|
emit updated();
|
|
|
}
|
|
|
|
|
|
void LogXLogYDomain::zoomIn(const QRectF &rect)
|
|
|
{
|
|
|
storeZoomReset();
|
|
|
qreal logLeftX = rect.left() * (m_logRightX - m_logLeftX) / m_size.width() + m_logLeftX;
|
|
|
qreal logRightX = rect.right() * (m_logRightX - m_logLeftX) / m_size.width() + m_logLeftX;
|
|
|
qreal leftX = qPow(m_logBaseX, logLeftX);
|
|
|
qreal rightX = qPow(m_logBaseX, logRightX);
|
|
|
qreal minX = leftX < rightX ? leftX : rightX;
|
|
|
qreal maxX = leftX > rightX ? leftX : rightX;
|
|
|
|
|
|
qreal logLeftY = m_logRightY - rect.bottom() * (m_logRightY - m_logLeftY) / m_size.height();
|
|
|
qreal logRightY = m_logRightY - rect.top() * (m_logRightY - m_logLeftY) / m_size.height();
|
|
|
qreal leftY = qPow(m_logBaseY, logLeftY);
|
|
|
qreal rightY = qPow(m_logBaseY, logRightY);
|
|
|
qreal minY = leftY < rightY ? leftY : rightY;
|
|
|
qreal maxY = leftY > rightY ? leftY : rightY;
|
|
|
|
|
|
setRange(minX, maxX, minY, maxY);
|
|
|
}
|
|
|
|
|
|
void LogXLogYDomain::zoomOut(const QRectF &rect)
|
|
|
{
|
|
|
storeZoomReset();
|
|
|
const qreal factorX = m_size.width() / rect.width();
|
|
|
const qreal factorY = m_size.height() / rect.height();
|
|
|
|
|
|
qreal logLeftX = m_logLeftX + (m_logRightX - m_logLeftX) / 2 * (1 - factorX);
|
|
|
qreal logRIghtX = m_logLeftX + (m_logRightX - m_logLeftX) / 2 * (1 + factorX);
|
|
|
qreal leftX = qPow(m_logBaseX, logLeftX);
|
|
|
qreal rightX = qPow(m_logBaseX, logRIghtX);
|
|
|
qreal minX = leftX < rightX ? leftX : rightX;
|
|
|
qreal maxX = leftX > rightX ? leftX : rightX;
|
|
|
|
|
|
qreal newLogMinY = m_logLeftY + (m_logRightY - m_logLeftY) / 2 * (1 - factorY);
|
|
|
qreal newLogMaxY = m_logLeftY + (m_logRightY - m_logLeftY) / 2 * (1 + factorY);
|
|
|
qreal leftY = qPow(m_logBaseY, newLogMinY);
|
|
|
qreal rightY = qPow(m_logBaseY, newLogMaxY);
|
|
|
qreal minY = leftY < rightY ? leftY : rightY;
|
|
|
qreal maxY = leftY > rightY ? leftY : rightY;
|
|
|
|
|
|
setRange(minX, maxX, minY, maxY);
|
|
|
}
|
|
|
|
|
|
void LogXLogYDomain::move(qreal dx, qreal dy)
|
|
|
{
|
|
|
qreal stepX = dx * qAbs(m_logRightX - m_logLeftX) / m_size.width();
|
|
|
qreal leftX = qPow(m_logBaseX, m_logLeftX + stepX);
|
|
|
qreal rightX = qPow(m_logBaseX, m_logRightX + stepX);
|
|
|
qreal minX = leftX < rightX ? leftX : rightX;
|
|
|
qreal maxX = leftX > rightX ? leftX : rightX;
|
|
|
|
|
|
qreal stepY = dy * (m_logRightY - m_logLeftY) / m_size.height();
|
|
|
qreal leftY = qPow(m_logBaseY, m_logLeftY + stepY);
|
|
|
qreal rightY = qPow(m_logBaseY, m_logRightY + stepY);
|
|
|
qreal minY = leftY < rightY ? leftY : rightY;
|
|
|
qreal maxY = leftY > rightY ? leftY : rightY;
|
|
|
|
|
|
setRange(minX, maxX, minY, maxY);
|
|
|
}
|
|
|
|
|
|
QPointF LogXLogYDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const
|
|
|
{
|
|
|
const qreal deltaX = m_size.width() / qAbs(m_logRightX - m_logLeftX);
|
|
|
const qreal deltaY = m_size.height() / qAbs(m_logRightY - m_logLeftY);
|
|
|
qreal x(0);
|
|
|
qreal y(0);
|
|
|
if (point.x() > 0 && point.y() > 0) {
|
|
|
x = (std::log10(point.x()) / std::log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX;
|
|
|
y = (std::log10(point.y()) / std::log10(m_logBaseY)) * -deltaY - m_logLeftY * -deltaY + m_size.height();
|
|
|
ok = true;
|
|
|
} else {
|
|
|
qWarning() << "Logarithms of zero and negative values are undefined.";
|
|
|
ok = false;
|
|
|
if (point.x() > 0)
|
|
|
x = (std::log10(point.x()) / std::log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX;
|
|
|
else
|
|
|
x = 0;
|
|
|
if (point.y() > 0) {
|
|
|
y = (std::log10(point.y()) / std::log10(m_logBaseY)) * -deltaY - m_logLeftY * -deltaY
|
|
|
+ m_size.height();
|
|
|
} else {
|
|
|
y = m_size.height();
|
|
|
}
|
|
|
}
|
|
|
return QPointF(x, y);
|
|
|
}
|
|
|
|
|
|
QVector<QPointF> LogXLogYDomain::calculateGeometryPoints(const QVector<QPointF> &vector) const
|
|
|
{
|
|
|
const qreal deltaX = m_size.width() / qAbs(m_logRightX - m_logLeftX);
|
|
|
const qreal deltaY = m_size.height() / qAbs(m_logRightY - m_logLeftY);
|
|
|
|
|
|
QVector<QPointF> result;
|
|
|
result.resize(vector.count());
|
|
|
|
|
|
for (int i = 0; i < vector.count(); ++i) {
|
|
|
if (vector[i].x() > 0 && vector[i].y() > 0) {
|
|
|
qreal x = (std::log10(vector[i].x()) / std::log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX;
|
|
|
qreal y = (std::log10(vector[i].y()) / std::log10(m_logBaseY)) * -deltaY - m_logLeftY * -deltaY + m_size.height();
|
|
|
result[i].setX(x);
|
|
|
result[i].setY(y);
|
|
|
} else {
|
|
|
qWarning() << "Logarithms of zero and negative values are undefined.";
|
|
|
return QVector<QPointF>();
|
|
|
}
|
|
|
}
|
|
|
return result;
|
|
|
}
|
|
|
|
|
|
QPointF LogXLogYDomain::calculateDomainPoint(const QPointF &point) const
|
|
|
{
|
|
|
const qreal deltaX = m_size.width() / qAbs(m_logRightX - m_logLeftX);
|
|
|
const qreal deltaY = m_size.height() / qAbs(m_logRightY - m_logLeftY);
|
|
|
qreal x = qPow(m_logBaseX, m_logLeftX + point.x() / deltaX);
|
|
|
qreal y = qPow(m_logBaseY, m_logLeftY + (m_size.height() - point.y()) / deltaY);
|
|
|
return QPointF(x, y);
|
|
|
}
|
|
|
|
|
|
bool LogXLogYDomain::attachAxis(QAbstractAxis *axis)
|
|
|
{
|
|
|
AbstractDomain::attachAxis(axis);
|
|
|
QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis);
|
|
|
|
|
|
if (logAxis && logAxis->orientation() == Qt::Vertical) {
|
|
|
QObject::connect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleVerticalAxisBaseChanged(qreal)));
|
|
|
handleVerticalAxisBaseChanged(logAxis->base());
|
|
|
}
|
|
|
|
|
|
if (logAxis && logAxis->orientation() == Qt::Horizontal) {
|
|
|
QObject::connect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal)));
|
|
|
handleHorizontalAxisBaseChanged(logAxis->base());
|
|
|
}
|
|
|
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
bool LogXLogYDomain::detachAxis(QAbstractAxis *axis)
|
|
|
{
|
|
|
AbstractDomain::detachAxis(axis);
|
|
|
QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis);
|
|
|
|
|
|
if (logAxis && logAxis->orientation() == Qt::Vertical)
|
|
|
QObject::disconnect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleVerticalAxisBaseChanged(qreal)));
|
|
|
|
|
|
if (logAxis && logAxis->orientation() == Qt::Horizontal)
|
|
|
QObject::disconnect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal)));
|
|
|
|
|
|
return true;
|
|
|
}
|
|
|
|
|
|
void LogXLogYDomain::handleVerticalAxisBaseChanged(qreal baseY)
|
|
|
{
|
|
|
m_logBaseY = baseY;
|
|
|
qreal logMinY = std::log10(m_minY) / std::log10(m_logBaseY);
|
|
|
qreal logMaxY = std::log10(m_maxY) / std::log10(m_logBaseY);
|
|
|
m_logLeftY = logMinY < logMaxY ? logMinY : logMaxY;
|
|
|
m_logRightY = logMinY > logMaxY ? logMinY : logMaxY;
|
|
|
emit updated();
|
|
|
}
|
|
|
|
|
|
void LogXLogYDomain::handleHorizontalAxisBaseChanged(qreal baseX)
|
|
|
{
|
|
|
m_logBaseX = baseX;
|
|
|
qreal logMinX = std::log10(m_minX) / std::log10(m_logBaseX);
|
|
|
qreal logMaxX = std::log10(m_maxX) / std::log10(m_logBaseX);
|
|
|
m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX;
|
|
|
m_logRightX = logMinX > logMaxX ? logMinX : logMaxX;
|
|
|
emit updated();
|
|
|
}
|
|
|
|
|
|
// operators
|
|
|
|
|
|
bool QT_CHARTS_AUTOTEST_EXPORT operator== (const LogXLogYDomain &domain1, const LogXLogYDomain &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 QT_CHARTS_AUTOTEST_EXPORT operator!= (const LogXLogYDomain &domain1, const LogXLogYDomain &domain2)
|
|
|
{
|
|
|
return !(domain1 == domain2);
|
|
|
}
|
|
|
|
|
|
|
|
|
QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const LogXLogYDomain &domain)
|
|
|
{
|
|
|
#ifdef QT_NO_TEXTSTREAM
|
|
|
Q_UNUSED(domain)
|
|
|
#else
|
|
|
dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
|
|
|
#endif
|
|
|
return dbg.maybeSpace();
|
|
|
}
|
|
|
|
|
|
#include "moc_logxlogydomain_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
