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Fix clicked, released and doubleClicked signal points...
Fix clicked, released and doubleClicked signal points The clicked, released and doubleClicked signals for line, spline and area series return the point where the press was triggered. Change-Id: I075bb213657a7cadabdec3a72fde7cf5f412e982 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>
Titta Heikkala - - Load All Authors

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r2740:377e4516d036
r2746:4909289ecbd7
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logxlogypolardomain.cpp
271 lines | 9.0 KiB | text/x-c | CppLexer
/ src / charts / domain / logxlogypolardomain.cpp
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Miikka Heikkinen
Add Polar chart support...
 r2483 /****************************************************************************
**
Titta Heikkala
Update copyright year...
 r2688 ** Copyright (C) 2014 Digia Plc
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 r2483 ** All rights reserved.
Titta Heikkala
Updated license headers...
 r2740 ** For any questions to Digia, please use contact form at http://qt.io
Miikka Heikkinen
Add Polar chart support...
 r2483 **
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Updated license headers...
 r2740 ** This file is part of the Qt Charts module.
Miikka Heikkinen
Add Polar chart support...
 r2483 **
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Updated license headers...
 r2740 ** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and Digia.
Miikka Heikkinen
Add Polar chart support...
 r2483 **
** If you have questions regarding the use of this file, please use
Titta Heikkala
Updated license headers...
 r2740 ** contact form at http://qt.io
Miikka Heikkinen
Add Polar chart support...
 r2483 **
****************************************************************************/
Titta Heikkala
Fix include syntax...
 r2714 #include <private/logxlogypolardomain_p.h>
#include <private/qabstractaxis_p.h>
#include <QtCharts/QLogValueAxis>
#include <QtCore/QtMath>
Miikka Heikkinen
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 r2483
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_BEGIN_NAMESPACE
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 r2483
LogXLogYPolarDomain::LogXLogYPolarDomain(QObject *parent)
: PolarDomain(parent),
m_logLeftX(0),
m_logRightX(1),
m_logBaseX(10),
m_logInnerY(0),
m_logOuterY(1),
m_logBaseY(10)
{
}
LogXLogYPolarDomain::~LogXLogYPolarDomain()
{
}
void LogXLogYPolarDomain::setRange(qreal minX, qreal maxX, qreal minY, qreal maxY)
{
bool axisXChanged = false;
bool axisYChanged = false;
adjustLogDomainRanges(minX, maxX);
adjustLogDomainRanges(minY, maxY);
if (!qFuzzyCompare(m_minX, minX) || !qFuzzyCompare(m_maxX, maxX)) {
m_minX = minX;
m_maxX = maxX;
axisXChanged = true;
qreal logMinX = log10(m_minX) / log10(m_logBaseX);
qreal logMaxX = log10(m_maxX) / 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 = log10(m_minY) / log10(m_logBaseY);
qreal logMaxY = log10(m_maxY) / log10(m_logBaseY);
m_logInnerY = logMinY < logMaxY ? logMinY : logMaxY;
m_logOuterY = logMinY > logMaxY ? logMinY : logMaxY;
if (!m_signalsBlocked)
emit rangeVerticalChanged(m_minY, m_maxY);
}
if (axisXChanged || axisYChanged)
emit updated();
}
void LogXLogYPolarDomain::zoomIn(const QRectF &rect)
{
Miikka Heikkinen
Added QChart::zoomReset() and QChart::isZoomed()...
 r2545 storeZoomReset();
Miikka Heikkinen
Add Polar chart support...
 r2483 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_logOuterY - rect.bottom() * (m_logOuterY - m_logInnerY) / m_size.height();
qreal logRightY = m_logOuterY - rect.top() * (m_logOuterY - m_logInnerY) / 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 LogXLogYPolarDomain::zoomOut(const QRectF &rect)
{
Miikka Heikkinen
Added QChart::zoomReset() and QChart::isZoomed()...
 r2545 storeZoomReset();
Miikka Heikkinen
Add Polar chart support...
 r2483 const qreal factorX = m_size.width() / rect.width();
qreal logLeftX = m_logLeftX + (m_logRightX - m_logLeftX) / 2.0 * (1.0 - factorX);
qreal logRIghtX = m_logLeftX + (m_logRightX - m_logLeftX) / 2.0 * (1.0 + 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;
const qreal factorY = m_size.height() / rect.height();
qreal newLogMinY = m_logInnerY + (m_logOuterY - m_logInnerY) / 2.0 * (1.0 - factorY);
qreal newLogMaxY = m_logInnerY + (m_logOuterY - m_logInnerY) / 2.0 * (1.0 + 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 LogXLogYPolarDomain::move(qreal dx, qreal dy)
{
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;
qreal stepY = dy * (m_logOuterY - m_logInnerY) / m_radius;
qreal leftY = qPow(m_logBaseY, m_logInnerY + stepY);
qreal rightY = qPow(m_logBaseY, m_logOuterY + stepY);
qreal minY = leftY < rightY ? leftY : rightY;
qreal maxY = leftY > rightY ? leftY : rightY;
setRange(minX, maxX, minY, maxY);
}
qreal LogXLogYPolarDomain::toAngularCoordinate(qreal value, bool &ok) const
{
qreal retVal;
if (value <= 0) {
ok = false;
retVal = 0.0;
} else {
ok = true;
const qreal tickSpan = 360.0 / qAbs(m_logRightX - m_logLeftX);
const qreal logValue = log10(value) / log10(m_logBaseX);
const qreal valueDelta = logValue - m_logLeftX;
retVal = valueDelta * tickSpan;
}
return retVal;
}
qreal LogXLogYPolarDomain::toRadialCoordinate(qreal value, bool &ok) const
{
qreal retVal;
if (value <= 0) {
ok = false;
retVal = 0.0;
} else {
ok = true;
const qreal tickSpan = m_radius / qAbs(m_logOuterY - m_logInnerY);
const qreal logValue = log10(value) / log10(m_logBaseY);
const qreal valueDelta = logValue - m_logInnerY;
retVal = valueDelta * tickSpan;
if (retVal < 0.0)
retVal = 0.0;
}
return retVal;
}
QPointF LogXLogYPolarDomain::calculateDomainPoint(const QPointF &point) const
{
if (point == m_center)
return QPointF(0.0, m_minY);
QLineF line(m_center, point);
qreal a = 90.0 - line.angle();
if (a < 0.0)
a += 360.0;
const qreal deltaX = 360.0 / qAbs(m_logRightX - m_logLeftX);
a = qPow(m_logBaseX, m_logLeftX + (a / deltaX));
const qreal deltaY = m_radius / qAbs(m_logOuterY - m_logInnerY);
qreal r = qPow(m_logBaseY, m_logInnerY + (line.length() / deltaY));
return QPointF(a, r);
}
bool LogXLogYPolarDomain::attachAxis(QAbstractAxis *axis)
{
AbstractDomain::attachAxis(axis);
QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis);
if (logAxis && logAxis->orientation() == Qt::Horizontal) {
QObject::connect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal)));
handleHorizontalAxisBaseChanged(logAxis->base());
} else if (logAxis && logAxis->orientation() == Qt::Vertical){
QObject::connect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleVerticalAxisBaseChanged(qreal)));
handleVerticalAxisBaseChanged(logAxis->base());
}
return true;
}
bool LogXLogYPolarDomain::detachAxis(QAbstractAxis *axis)
{
AbstractDomain::detachAxis(axis);
QLogValueAxis *logAxis = qobject_cast<QLogValueAxis *>(axis);
if (logAxis && logAxis->orientation() == Qt::Horizontal)
QObject::disconnect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleHorizontalAxisBaseChanged(qreal)));
else if (logAxis && logAxis->orientation() == Qt::Vertical)
QObject::disconnect(logAxis, SIGNAL(baseChanged(qreal)), this, SLOT(handleVerticalAxisBaseChanged(qreal)));
return true;
}
void LogXLogYPolarDomain::handleHorizontalAxisBaseChanged(qreal baseX)
{
m_logBaseX = baseX;
qreal logMinX = log10(m_minX) / log10(m_logBaseX);
qreal logMaxX = log10(m_maxX) / log10(m_logBaseX);
m_logLeftX = logMinX < logMaxX ? logMinX : logMaxX;
m_logRightX = logMinX > logMaxX ? logMinX : logMaxX;
emit updated();
}
void LogXLogYPolarDomain::handleVerticalAxisBaseChanged(qreal baseY)
{
m_logBaseY = baseY;
qreal logMinY = log10(m_minY) / log10(m_logBaseY);
qreal logMaxY = log10(m_maxY) / log10(m_logBaseY);
m_logInnerY = logMinY < logMaxY ? logMinY : logMaxY;
m_logOuterY = logMinY > logMaxY ? logMinY : logMaxY;
emit updated();
}
// operators
Titta Heikkala
Qt Charts project file structure change...
 r2712 bool QT_CHARTS_AUTOTEST_EXPORT operator== (const LogXLogYPolarDomain &domain1, const LogXLogYPolarDomain &domain2)
Miikka Heikkinen
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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));
}
Titta Heikkala
Qt Charts project file structure change...
 r2712 bool QT_CHARTS_AUTOTEST_EXPORT operator!= (const LogXLogYPolarDomain &domain1, const LogXLogYPolarDomain &domain2)
Miikka Heikkinen
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 r2483 {
return !(domain1 == domain2);
}
Titta Heikkala
Qt Charts project file structure change...
 r2712 QDebug QT_CHARTS_AUTOTEST_EXPORT operator<<(QDebug dbg, const LogXLogYPolarDomain &domain)
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 r2483 {
Titta Heikkala
Fix Chart build when QT_NO_TEXTSTREAM is defined...
 r2620 #ifdef QT_NO_TEXTSTREAM
Q_UNUSED(domain)
#else
Miikka Heikkinen
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 r2483 dbg.nospace() << "AbstractDomain(" << domain.m_minX << ',' << domain.m_maxX << ',' << domain.m_minY << ',' << domain.m_maxY << ')' << domain.m_size;
Titta Heikkala
Fix Chart build when QT_NO_TEXTSTREAM is defined...
 r2620 #endif
Miikka Heikkinen
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 r2483 return dbg.maybeSpace();
}
#include "moc_logxlogypolardomain_p.cpp"
Titta Heikkala
Qt Charts project file structure change...
 r2712 QT_CHARTS_END_NAMESPACE