|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2016 The Qt Company Ltd.
|
|
|
** Contact: https://www.qt.io/licensing/
|
|
|
**
|
|
|
** This file is part of the Qt Charts module of the Qt Toolkit.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE:GPL$
|
|
|
** 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 https://www.qt.io/terms-conditions. For further
|
|
|
** information use the contact form at https://www.qt.io/contact-us.
|
|
|
**
|
|
|
** GNU General Public License Usage
|
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
|
** General Public License version 3 or (at your option) any later version
|
|
|
** approved by the KDE Free Qt Foundation. The licenses are as published by
|
|
|
** the Free Software Foundation and appearing in the file LICENSE.GPL3
|
|
|
** included in the packaging of this file. Please review the following
|
|
|
** information to ensure the GNU General Public License requirements will
|
|
|
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
|
|
|
**
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include <QtCharts/QLogValueAxis>
|
|
|
#include <private/qlogvalueaxis_p.h>
|
|
|
#include <private/chartlogvalueaxisx_p.h>
|
|
|
#include <private/chartlogvalueaxisy_p.h>
|
|
|
#include <private/polarchartlogvalueaxisangular_p.h>
|
|
|
#include <private/polarchartlogvalueaxisradial_p.h>
|
|
|
#include <private/abstractdomain_p.h>
|
|
|
#include <float.h>
|
|
|
#include <cmath>
|
|
|
|
|
|
QT_CHARTS_BEGIN_NAMESPACE
|
|
|
/*!
|
|
|
\class QLogValueAxis
|
|
|
\inmodule Qt Charts
|
|
|
\brief The QLogValueAxis class is used for manipulating chart's axis.
|
|
|
|
|
|
\note If a QLogValueAxis is attached to a series with one or more points with
|
|
|
negative or zero values on the associated dimension, the series will not be
|
|
|
plotted at all. This is particularly relevant when XYModelMappers are used,
|
|
|
since empty cells in models typically contain zero values.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\qmltype LogValueAxis
|
|
|
\instantiates QLogValueAxis
|
|
|
\inqmlmodule QtCharts
|
|
|
|
|
|
\brief The LogValueAxis element is used for manipulating chart's axes.
|
|
|
\inherits AbstractAxis
|
|
|
|
|
|
\note If a LogValueAxis is attached to a series with one or more points with
|
|
|
negative or zero values on the associated dimension, the series will not be
|
|
|
plotted at all. This is particularly relevant when XYModelMappers are used,
|
|
|
since empty cells in models typically contain zero values.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QLogValueAxis::min
|
|
|
Defines the minimum value on the axis.
|
|
|
When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
|
|
|
Value has to be greater than 0.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty real LogValueAxis::min
|
|
|
Defines the minimum value on the axis.
|
|
|
When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
|
|
|
Value has to be greater than 0.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QLogValueAxis::max
|
|
|
Defines the maximum value on the axis.
|
|
|
When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
|
|
|
Value has to be greater than 0.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty real LogValueAxis::max
|
|
|
Defines the maximum value on the axis.
|
|
|
When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
|
|
|
Value has to be greater than 0.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QLogValueAxis::base
|
|
|
Defines the base of the logarithm.
|
|
|
Value has to be greater than 0 and not equal 1
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty real LogValueAxis::base
|
|
|
Defines the maximum value on the axis.
|
|
|
Defines the base of the logarithm.
|
|
|
Value has to be greater than 0 and not equal 1
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QLogValueAxis::labelFormat
|
|
|
Defines the label format of the axis.
|
|
|
Supported specifiers are: d, i, o, x, X, f, F, e, E, g, G, c
|
|
|
See QString::sprintf() for additional details.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty real LogValueAxis::labelFormat
|
|
|
Defines the label format of the axis.
|
|
|
Supported specifiers are: d, i, o, x, X, f, F, e, E, g, G, c
|
|
|
See QString::sprintf() for additional details.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QLogValueAxis::minChanged(qreal min)
|
|
|
Axis emits signal when \a min of axis has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal LogValueAxis::onMinChanged(qreal min)
|
|
|
Axis emits signal when \a min of axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QLogValueAxis::maxChanged(qreal max)
|
|
|
Axis emits signal when \a max of axis has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal LogValueAxis::onMaxChanged(qreal max)
|
|
|
Axis emits signal when \a max of axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QLogValueAxis::rangeChanged(qreal min, qreal max)
|
|
|
Axis emits signal when \a min or \a max of axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QLogValueAxis::labelFormatChanged(const QString &format)
|
|
|
Axis emits signal when \a format of axis labels has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal LogValueAxis::labelFormatChanged(const QString &format)
|
|
|
Axis emits signal when \a format of axis labels has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QLogValueAxis::baseChanged(qreal base)
|
|
|
Axis emits signal when \a base of logarithm of the axis has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal LogValueAxis::baseChanged(qreal base)
|
|
|
Axis emits signal when \a base of logarithm of the axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs an axis object which is a child of \a parent.
|
|
|
*/
|
|
|
QLogValueAxis::QLogValueAxis(QObject *parent) :
|
|
|
QAbstractAxis(*new QLogValueAxisPrivate(this), parent)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
QLogValueAxis::QLogValueAxis(QLogValueAxisPrivate &d, QObject *parent) : QAbstractAxis(d, parent)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the object
|
|
|
*/
|
|
|
QLogValueAxis::~QLogValueAxis()
|
|
|
{
|
|
|
Q_D(QLogValueAxis);
|
|
|
if (d->m_chart)
|
|
|
d->m_chart->removeAxis(this);
|
|
|
}
|
|
|
|
|
|
void QLogValueAxis::setMin(qreal min)
|
|
|
{
|
|
|
Q_D(QLogValueAxis);
|
|
|
setRange(min, qMax(d->m_max, min));
|
|
|
}
|
|
|
|
|
|
qreal QLogValueAxis::min() const
|
|
|
{
|
|
|
Q_D(const QLogValueAxis);
|
|
|
return d->m_min;
|
|
|
}
|
|
|
|
|
|
void QLogValueAxis::setMax(qreal max)
|
|
|
{
|
|
|
Q_D(QLogValueAxis);
|
|
|
setRange(qMin(d->m_min, max), max);
|
|
|
}
|
|
|
|
|
|
qreal QLogValueAxis::max() const
|
|
|
{
|
|
|
Q_D(const QLogValueAxis);
|
|
|
return d->m_max;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets range from \a min to \a max on the axis.
|
|
|
If min is greater than max then this function returns without making any changes.
|
|
|
*/
|
|
|
void QLogValueAxis::setRange(qreal min, qreal max)
|
|
|
{
|
|
|
Q_D(QLogValueAxis);
|
|
|
bool changed = false;
|
|
|
|
|
|
if (min > max)
|
|
|
return;
|
|
|
|
|
|
if (min > 0) {
|
|
|
if (!qFuzzyCompare(d->m_min, min)) {
|
|
|
d->m_min = min;
|
|
|
changed = true;
|
|
|
emit minChanged(min);
|
|
|
}
|
|
|
|
|
|
if (!qFuzzyCompare(d->m_max, max)) {
|
|
|
d->m_max = max;
|
|
|
changed = true;
|
|
|
emit maxChanged(max);
|
|
|
}
|
|
|
|
|
|
if (changed) {
|
|
|
emit rangeChanged(min, max);
|
|
|
emit d->rangeChanged(min,max);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QLogValueAxis::setLabelFormat(const QString &format)
|
|
|
{
|
|
|
Q_D(QLogValueAxis);
|
|
|
d->m_format = format;
|
|
|
emit labelFormatChanged(format);
|
|
|
}
|
|
|
|
|
|
QString QLogValueAxis::labelFormat() const
|
|
|
{
|
|
|
Q_D(const QLogValueAxis);
|
|
|
return d->m_format;
|
|
|
}
|
|
|
|
|
|
void QLogValueAxis::setBase(qreal base)
|
|
|
{
|
|
|
// check if base is correct
|
|
|
if (qFuzzyCompare(base, 1))
|
|
|
return;
|
|
|
|
|
|
if (base > 0) {
|
|
|
Q_D(QLogValueAxis);
|
|
|
d->m_base = base;
|
|
|
emit baseChanged(base);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
qreal QLogValueAxis::base() const
|
|
|
{
|
|
|
Q_D(const QLogValueAxis);
|
|
|
return d->m_base;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the type of the axis
|
|
|
*/
|
|
|
QAbstractAxis::AxisType QLogValueAxis::type() const
|
|
|
{
|
|
|
return AxisTypeLogValue;
|
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
QLogValueAxisPrivate::QLogValueAxisPrivate(QLogValueAxis *q)
|
|
|
: QAbstractAxisPrivate(q),
|
|
|
m_min(1),
|
|
|
m_max(1),
|
|
|
m_base(10),
|
|
|
m_format(QString::null)
|
|
|
{
|
|
|
}
|
|
|
|
|
|
QLogValueAxisPrivate::~QLogValueAxisPrivate()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
void QLogValueAxisPrivate::setMin(const QVariant &min)
|
|
|
{
|
|
|
Q_Q(QLogValueAxis);
|
|
|
bool ok;
|
|
|
qreal value = min.toReal(&ok);
|
|
|
if (ok)
|
|
|
q->setMin(value);
|
|
|
}
|
|
|
|
|
|
void QLogValueAxisPrivate::setMax(const QVariant &max)
|
|
|
{
|
|
|
|
|
|
Q_Q(QLogValueAxis);
|
|
|
bool ok;
|
|
|
qreal value = max.toReal(&ok);
|
|
|
if (ok)
|
|
|
q->setMax(value);
|
|
|
}
|
|
|
|
|
|
void QLogValueAxisPrivate::setRange(const QVariant &min, const QVariant &max)
|
|
|
{
|
|
|
Q_Q(QLogValueAxis);
|
|
|
bool ok1;
|
|
|
bool ok2;
|
|
|
qreal value1 = min.toReal(&ok1);
|
|
|
qreal value2 = max.toReal(&ok2);
|
|
|
if (ok1 && ok2)
|
|
|
q->setRange(value1, value2);
|
|
|
}
|
|
|
|
|
|
void QLogValueAxisPrivate::setRange(qreal min, qreal max)
|
|
|
{
|
|
|
Q_Q(QLogValueAxis);
|
|
|
bool changed = false;
|
|
|
|
|
|
if (min > max)
|
|
|
return;
|
|
|
|
|
|
if (min > 0) {
|
|
|
if (!qFuzzyCompare(m_min, min)) {
|
|
|
m_min = min;
|
|
|
changed = true;
|
|
|
emit q->minChanged(min);
|
|
|
}
|
|
|
|
|
|
if (!qFuzzyCompare(m_max, max)) {
|
|
|
m_max = max;
|
|
|
changed = true;
|
|
|
emit q->maxChanged(max);
|
|
|
}
|
|
|
|
|
|
if (changed) {
|
|
|
emit rangeChanged(min,max);
|
|
|
emit q->rangeChanged(min, max);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void QLogValueAxisPrivate::initializeGraphics(QGraphicsItem *parent)
|
|
|
{
|
|
|
Q_Q(QLogValueAxis);
|
|
|
ChartAxisElement *axis(0);
|
|
|
|
|
|
if (m_chart->chartType() == QChart::ChartTypeCartesian) {
|
|
|
if (orientation() == Qt::Vertical)
|
|
|
axis = new ChartLogValueAxisY(q,parent);
|
|
|
if (orientation() == Qt::Horizontal)
|
|
|
axis = new ChartLogValueAxisX(q,parent);
|
|
|
}
|
|
|
|
|
|
if (m_chart->chartType() == QChart::ChartTypePolar) {
|
|
|
if (orientation() == Qt::Vertical)
|
|
|
axis = new PolarChartLogValueAxisRadial(q, parent);
|
|
|
if (orientation() == Qt::Horizontal)
|
|
|
axis = new PolarChartLogValueAxisAngular(q, parent);
|
|
|
}
|
|
|
|
|
|
m_item.reset(axis);
|
|
|
QAbstractAxisPrivate::initializeGraphics(parent);
|
|
|
}
|
|
|
|
|
|
|
|
|
void QLogValueAxisPrivate::initializeDomain(AbstractDomain *domain)
|
|
|
{
|
|
|
if (orientation() == Qt::Vertical) {
|
|
|
if (!qFuzzyCompare(m_max, m_min)) {
|
|
|
domain->setRangeY(m_min, m_max);
|
|
|
} else if ( domain->minY() > 0) {
|
|
|
setRange(domain->minY(), domain->maxY());
|
|
|
} else if (domain->maxY() > 0) {
|
|
|
domain->setRangeY(m_min, domain->maxY());
|
|
|
} else {
|
|
|
domain->setRangeY(1, 10);
|
|
|
}
|
|
|
}
|
|
|
if (orientation() == Qt::Horizontal) {
|
|
|
if (!qFuzzyCompare(m_max, m_min)) {
|
|
|
domain->setRangeX(m_min, m_max);
|
|
|
} else if (domain->minX() > 0){
|
|
|
setRange(domain->minX(), domain->maxX());
|
|
|
} else if (domain->maxX() > 0) {
|
|
|
domain->setRangeX(m_min, domain->maxX());
|
|
|
} else {
|
|
|
domain->setRangeX(1, 10);
|
|
|
}
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_qlogvalueaxis.cpp"
|
|
|
#include "moc_qlogvalueaxis_p.cpp"
|
|
|
|
|
|
QT_CHARTS_END_NAMESPACE
|
|
|
|
