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Fixed the copyright year 2012 -> 2013
Fixed the copyright year 2012 -> 2013
Miikka Heikkinen - - Load All Authors

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qlogvalueaxis.cpp
384 lines | 9.5 KiB | text/x-c | CppLexer
/ src / axis / logvalueaxis / qlogvalueaxis.cpp
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Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 /****************************************************************************
**
Miikka Heikkinen
Fixed the copyright year 2012 -> 2013
 r2432 ** Copyright (C) 2013 Digia Plc
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 ** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qlogvalueaxis.h"
#include "qlogvalueaxis_p.h"
#include "chartlogvalueaxisx_p.h"
#include "chartlogvalueaxisy_p.h"
Marek Rosa
Domains added
 r2275 #include "abstractdomain_p.h"
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 #include <float.h>
#include <cmath>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
/*!
\class QLogValueAxis
\brief The QLogValueAxis class is used for manipulating chart's axis.
\mainclass
Miikka Heikkinen
Added a note in docs about not plotting series with log axis...
 r2430
\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.
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 */
/*!
Marek Rosa
Added links LogValueAxis to demos and qml docs pages
 r2343 \qmlclass LogValuesAxis QLogValueAxis
\brief The LogValueAxis element is used for manipulating chart's axes
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 \inherits AbstractAxis
Miikka Heikkinen
Added a note in docs about not plotting series with log axis...
 r2430
\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.
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 */
/*!
\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.
Marek Rosa
QLogValueAxis docs updated
 r2338 Value has to be greater then 0.
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 */
/*!
Marek Rosa
QLogValueAxis docs updated
 r2338 \qmlproperty real LogValuesAxis::min
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 Defines the minimum value on the axis.
When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
Marek Rosa
QLogValueAxis docs updated
 r2338 Value has to be greater then 0.
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 */
/*!
\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.
Marek Rosa
QLogValueAxis docs updated
 r2338 Value has to be greater then 0.
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 */
/*!
Marek Rosa
QLogValueAxis docs updated
 r2338 \qmlproperty real LogValuesAxis::max
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 Defines the maximum value on the axis.
When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
Marek Rosa
QLogValueAxis docs updated
 r2338 Value has to be greater then 0.
*/
/*!
\property QLogValueAxis::base
Defines the base of the logarithm.
Value has to be greater then 0 and not equal 1
*/
/*!
\qmlproperty real LogValuesAxis::base
Defines the maximum value on the axis.
Defines the base of the logarithm.
Value has to be greater then 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 LogValuesAxis::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.
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 */
/*!
\fn void QLogValueAxis::minChanged(qreal min)
Axis emits signal when \a min of axis has changed.
*/
/*!
Marek Rosa
QLogValueAxis docs updated
 r2338 \qmlsignal LogValuesAxis::onMinChanged(qreal min)
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 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.
*/
/*!
Marek Rosa
QLogValueAxis docs updated
 r2338 \qmlsignal LogValuesAxis::onMaxChanged(qreal max)
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 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.
*/
Marek Rosa
QLogValueAxis docs updated
 r2338 /*!
\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 LogValuesAxis::baseChanged(qreal base)
Axis emits signal when \a base of logarithm of the axis has changed.
*/
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 /*!
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()
{
Marek Rosa
LogDomain initialize fix
 r2304 Q_D(QLogValueAxis);
if (d->m_chart)
d->m_chart->removeAxis(this);
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 }
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)
Michal Klocek
Fixes missing layout updated on ticks,base and format calls
 r2333 {
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 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;
Marek Rosa
Added missing properties and NOTIFY's to logvalue and value axes
 r2319 emit labelFormatChanged(format);
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 }
QString QLogValueAxis::labelFormat() const
{
Q_D(const QLogValueAxis);
return d->m_format;
}
void QLogValueAxis::setBase(qreal base)
{
// check if base is correct
Marek Rosa
LogDomains: calculateDomainPoint implemented
 r2283 if (qFuzzyCompare(base, 1))
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 return;
Marek Rosa
LogDomains: calculateDomainPoint implemented
 r2283 if (base > 0) {
Q_D(QLogValueAxis);
d->m_base = base;
Marek Rosa
Added attach/dettach axis domain implementations
 r2290 emit baseChanged(base);
Marek Rosa
LogDomains: calculateDomainPoint implemented
 r2283 }
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 }
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),
Marek Rosa
LogDomain initialize fix
 r2304 m_max(1),
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 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);
Michal Klocek
Fixes missing layout updated on ticks,base and format calls
 r2333 emit q->rangeChanged(min, max);
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 }
}
}
void QLogValueAxisPrivate::initializeGraphics(QGraphicsItem* parent)
{
Q_Q(QLogValueAxis);
ChartAxis* axis(0);
if (orientation() == Qt::Vertical)
axis = new ChartLogValueAxisY(q,parent);
if (orientation() == Qt::Horizontal)
axis = new ChartLogValueAxisX(q,parent);
m_item.reset(axis);
QAbstractAxisPrivate::initializeGraphics(parent);
}
Marek Rosa
Domains added
 r2275 void QLogValueAxisPrivate::initializeDomain(AbstractDomain *domain)
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 {
if (orientation() == Qt::Vertical) {
if(!qFuzzyCompare(m_max, m_min)) {
domain->setRangeY(m_min, m_max);
Marek Rosa
Fix logdomain initialization
 r2355 } else if ( domain->minY() > 0) {
Marek Rosa
LogDomain initialize fix
 r2304 setRange(domain->minY(), domain->maxY());
Marek Rosa
Fix logdomain initialization
 r2355 } else if (domain->maxY() > 0) {
Marek Rosa
LogDomain initialize fix
 r2304 domain->setRangeY(m_min, domain->maxY());
Marek Rosa
Fix logdomain initialization
 r2355 } else {
domain->setRangeY(1, 10);
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 }
}
if (orientation() == Qt::Horizontal) {
if(!qFuzzyCompare(m_max, m_min)) {
domain->setRangeX(m_min, m_max);
Marek Rosa
Fix logdomain initialization
 r2355 } else if (domain->minX() > 0){
Marek Rosa
LogDomain initialize fix
 r2304 setRange(domain->minX(), domain->maxX());
Marek Rosa
Fix logdomain initialization
 r2355 } else if (domain->maxX() > 0) {
Marek Rosa
LogDomain initialize fix
 r2304 domain->setRangeX(m_min, domain->maxX());
Marek Rosa
Fix logdomain initialization
 r2355 } else {
domain->setRangeX(1, 10);
Marek Rosa
QLogValueAxis added. Log domain missing
 r2274 }
}
}
#include "moc_qlogvalueaxis.cpp"
#include "moc_qlogvalueaxis_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE