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remove debug message Change-Id: Ib7511b744ac89e9af1e81c4a6fa7428a254b23a3 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io> Reviewed-by: Tomi Korpipää <tomi.korpipaa@theqtcompany.com>

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logxydomain.cpp
247 lines | 7.6 KiB | text/x-c | CppLexer
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r2845 /******************************************************************************
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r2275 **
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r2845 ** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
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r2275 **
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r2740 ** This file is part of the Qt Charts module.
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r2275 **
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r2845 ** $QT_BEGIN_LICENSE:COMM$
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r2275 **
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r2845 ** 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.
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r2275 **
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r2845 ** $QT_END_LICENSE$
**
******************************************************************************/
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r2714 #include <private/logxydomain_p.h>
#include <private/qabstractaxis_p.h>
#include <QtCharts/QLogValueAxis>
#include <QtCore/QtMath>
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r2775 #include <cmath>
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r2275
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r2712 QT_CHARTS_BEGIN_NAMESPACE
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LogXYDomain::LogXYDomain(QObject *parent)
: AbstractDomain(parent),
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r2351 m_logLeftX(0),
m_logRightX(1),
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r2275 m_logBaseX(10)
{
}
LogXYDomain::~LogXYDomain()
{
}
void LogXYDomain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
{
bool axisXChanged = false;
bool axisYChanged = false;
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r2483 adjustLogDomainRanges(minX, maxX);
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r2275 if (!qFuzzyCompare(m_minX, minX) || !qFuzzyCompare(m_maxX, maxX)) {
m_minX = minX;
m_maxX = maxX;
axisXChanged = true;
Titta Heikkala
Fix QNX build issue...
r2775 qreal logMinX = std::log10(m_minX) / std::log10(m_logBaseX);
qreal logMaxX = std::log10(m_maxX) / std::log10(m_logBaseX);
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QChart mapping functions: return QPoint(0, 0) if series type is Pie...
r2351 m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX;
m_logRightX = logMinX > logMaxX ? logMinX : logMaxX;
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Fix domain switching
r2288 if(!m_signalsBlocked)
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r2356 emit rangeHorizontalChanged(m_minX, m_maxX);
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r2275 }
if (!qFuzzyIsNull(m_minY - minY) || !qFuzzyIsNull(m_maxY - maxY)) {
m_minY = minY;
m_maxY = maxY;
axisYChanged = true;
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r2483 if (!m_signalsBlocked)
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r2356 emit rangeVerticalChanged(m_minY, m_maxY);
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r2275 }
if (axisXChanged || axisYChanged)
emit updated();
}
void LogXYDomain::zoomIn(const QRectF &rect)
{
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r2545 storeZoomReset();
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r2351 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;
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r2275
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r2280 qreal dy = spanY() / m_size.height();
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r2275 qreal minY = m_minY;
qreal maxY = m_maxY;
minY = maxY - dy * rect.bottom();
maxY = maxY - dy * rect.top();
setRange(minX, maxX, minY, maxY);
}
void LogXYDomain::zoomOut(const QRectF &rect)
{
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r2545 storeZoomReset();
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r2351 const qreal factorX = m_size.width() / rect.width();
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;
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r2275
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r2280 qreal dy = spanY() / rect.height();
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r2275 qreal minY = m_minY;
qreal maxY = m_maxY;
maxY = minY + dy * rect.bottom();
minY = maxY - dy * m_size.height();
setRange(minX, maxX, minY, maxY);
}
void LogXYDomain::move(qreal dx, qreal dy)
{
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r2351 qreal stepX = dx * (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;
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r2275
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r2280 qreal y = spanY() / m_size.height();
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r2275 qreal minY = m_minY;
qreal maxY = m_maxY;
if (dy != 0) {
minY = minY + y * dy;
maxY = maxY + y * dy;
}
setRange(minX, maxX, minY, maxY);
}
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r2356 QPointF LogXYDomain::calculateGeometryPoint(const QPointF &point, bool &ok) const
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r2275 {
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r2611 const qreal deltaX = m_size.width() / (m_logRightX - m_logLeftX);
const qreal deltaY = m_size.height() / (m_maxY - m_minY);
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r2275
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r2611 qreal x(0);
qreal y = (point.y() - m_minY) * -deltaY + m_size.height();
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r2356 if (point.x() > 0) {
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r2775 x = (std::log10(point.x()) / std::log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX;
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r2356 ok = true;
} else {
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r2611 x = 0;
qWarning() << "Logarithms of zero and negative values are undefined.";
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r2356 ok = false;
}
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r2611 return QPointF(x, y);
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r2275 }
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r2820 QVector<QPointF> LogXYDomain::calculateGeometryPoints(const QVector<QPointF> &vector) const
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r2275 {
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r2351 const qreal deltaX = m_size.width() / (m_logRightX - m_logLeftX);
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r2275 const qreal deltaY = m_size.height() / (m_maxY - m_minY);
QVector<QPointF> result;
result.resize(vector.count());
for (int i = 0; i < vector.count(); ++i) {
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r2356 if (vector[i].x() > 0) {
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r2775 qreal x = (std::log10(vector[i].x()) / std::log10(m_logBaseX)) * deltaX - m_logLeftX * deltaX;
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r2356 qreal y = (vector[i].y() - m_minY) * -deltaY + m_size.height();
result[i].setX(x);
result[i].setY(y);
} else {
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r2611 qWarning() << "Logarithms of zero and negative values are undefined.";
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r2356 return QVector<QPointF>();
}
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r2611
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r2275 }
return result;
}
QPointF LogXYDomain::calculateDomainPoint(const QPointF &point) const
{
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r2351 const qreal deltaX = m_size.width() / (m_logRightX - m_logLeftX);
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r2275 const qreal deltaY = m_size.height() / (m_maxY - m_minY);
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r2351 qreal x = qPow(m_logBaseX, m_logLeftX + point.x() / deltaX);
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r2275 qreal y = (point.y() - m_size.height()) / (-deltaY) + m_minY;
return QPointF(x, y);
}
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r2483 bool LogXYDomain::attachAxis(QAbstractAxis *axis)
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r2290 {
AbstractDomain::attachAxis(axis);
QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis);
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r2483 if (logAxis && logAxis->orientation() == Qt::Horizontal) {
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r2290 QObject::connect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal)));
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Fix to domain initialization when log base was preset on axis before adding it to chart
r2295 handleHorizontalAxisBaseChanged(logAxis->base());
}
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r2290
return true;
}
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r2483 bool LogXYDomain::detachAxis(QAbstractAxis *axis)
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r2290 {
AbstractDomain::detachAxis(axis);
QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis);
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r2483 if (logAxis && logAxis->orientation() == Qt::Horizontal)
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r2290 QObject::disconnect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal)));
return true;
}
void LogXYDomain::handleHorizontalAxisBaseChanged(qreal baseX)
{
m_logBaseX = baseX;
Titta Heikkala
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r2775 qreal logMinX = std::log10(m_minX) / std::log10(m_logBaseX);
qreal logMaxX = std::log10(m_maxX) / std::log10(m_logBaseX);
Marek Rosa
QChart mapping functions: return QPoint(0, 0) if series type is Pie...
r2351 m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX;
m_logRightX = logMinX > logMaxX ? logMinX : logMaxX;
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Fixed: chart not redrawing when logaxis's logBase value changed
r2322 emit updated();
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r2290 }
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r2275 // operators
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r2712 bool QT_CHARTS_AUTOTEST_EXPORT operator== (const LogXYDomain &domain1, const LogXYDomain &domain2)
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r2275 {
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r2483 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));
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r2275 }
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r2712 bool QT_CHARTS_AUTOTEST_EXPORT operator!= (const LogXYDomain &domain1, const LogXYDomain &domain2)
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r2275 {
return !(domain1 == domain2);
}
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r2712 QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const LogXYDomain &domain)
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r2275 {
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r2620 #ifdef QT_NO_TEXTSTREAM
Q_UNUSED(domain)
#else
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r2275 dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
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r2620 #endif
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r2275 return dbg.maybeSpace();
}
#include "moc_logxydomain_p.cpp"
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r2712 QT_CHARTS_END_NAMESPACE