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Add possibility to set reverse values to axes...
Add possibility to set reverse values to axes Added support for reverse axis. This works with line, spline, scatter and area series with cartesian chart. QBarCategoryAxis is not supported, nor different bar series. Change-Id: I60f21372ea9cee7b49918d7d99de24671bdc42c3 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

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qboxset.cpp
351 lines | 8.3 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** 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 The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include <QtCharts/QBoxSet>
#include <private/qboxset_p.h>
#include <private/charthelpers_p.h>
QT_CHARTS_BEGIN_NAMESPACE
/*!
\class QBoxSet
\inmodule Qt Charts
\brief Building block for box-and-whiskers chart.
QBoxSet represents one box-and-whiskers item. It takes five values to create a graphical representation
of range and three medians. There are two ways to give the values. The first one is with constructor
or stream operator (<<). The values have to be given in the following order: lower extreme,
lower quartile, median, upper quartile and upper extreme. The Second method is to create an empty QBoxSet instance and
give the values using setValue method.
\mainclass
\sa QBoxPlotSeries
*/
/*!
\enum QBoxSet::ValuePositions
\value LowerExtreme
\value LowerQuartile
\value Median
\value UpperQuartile
\value UpperExtreme
*/
/*!
\property QBoxSet::pen
\brief Defines the pen used by the box-and-whiskers set.
*/
/*!
\property QBoxSet::brush
\brief Defines the brush used by the box-and-whiskers set.
*/
/*!
\qmlproperty QString BoxSet::brushFilename
The name of the file used as a brush for the box-and-whiskers set.
*/
/*!
\fn void QBoxSet::clicked()
The signal is emitted if the user clicks with a mouse on top of box-and-whisker item.
*/
/*!
\fn void QBoxSet::pressed()
The signal is emitted if the user presses with a mouse on top of box-and-whisker item.
*/
/*!
\fn void QBoxSet::released()
The signal is emitted if the user releases with a mouse on top of box-and-whisker item.
*/
/*!
\fn void QBoxSet::doubleClicked()
The signal is emitted if the user doubleclicks with a mouse on top of box-and-whisker item.
*/
/*!
\fn void QBoxSet::hovered(bool status)
The signal is emitted if mouse is hovered on top of box-and-whisker item.
Parameter \a status is true, if mouse entered on top of item, false if mouse left from top of item.
*/
/*!
\fn void QBoxSet::penChanged()
This signal is emitted when the pen of the box-and-whisker item has changed.
\sa pen
*/
/*!
\fn void QBoxSet::brushChanged()
This signal is emitted when the brush of the box-and-whisker item has changed.
\sa brush
*/
/*!
\fn void QBoxSet::valuesChanged()
This signal is emitted when multiple values have been changed on the box-and-whisker item.
\sa append()
*/
/*!
\fn void QBoxSet::valueChanged(int index)
This signal is emitted values the value in the box-and-whisker item has been modified.
Parameter \a index indicates the position of the modified value.
\sa at()
*/
/*!
\fn void QBoxSet::cleared()
This signal is emitted when all the values on the set are cleared to 0.
*/
/*!
Constructs QBoxSet with optional \a label and parent of \a parent
*/
QBoxSet::QBoxSet(const QString label, QObject *parent)
: QObject(parent),
d_ptr(new QBoxSetPrivate(label, this))
{
}
/*!
Constructs QBoxSet with given ordered values. \a le for lower extreme, \a lq for lower quartile, \a m for median,
\a uq for upper quartile and \a ue for upper quartile. \a label and \a parent are optional.
*/
QBoxSet::QBoxSet(const qreal le, const qreal lq, const qreal m, const qreal uq, const qreal ue, const QString label, QObject *parent)
: QObject(parent),
d_ptr(new QBoxSetPrivate(label, this))
{
d_ptr->append(le);
d_ptr->append(lq);
d_ptr->append(m);
d_ptr->append(uq);
d_ptr->append(ue);
}
/*!
Destroys the boxset
*/
QBoxSet::~QBoxSet()
{
}
/*!
Appends new value \a value to the end of set.
*/
void QBoxSet::append(const qreal value)
{
if (d_ptr->append(value))
emit valueChanged(d_ptr->m_appendCount - 1);
}
/*!
Appends a list of reals to set. Works like append with single real value. The \a values in list
are appended to end of boxset.
\sa append()
*/
void QBoxSet::append(const QList<qreal> &values)
{
if (d_ptr->append(values))
emit valuesChanged();
}
/*!
Sets new \a label for set.
*/
void QBoxSet::setLabel(const QString label)
{
d_ptr->m_label = label;
}
/*!
Returns label of the set.
*/
QString QBoxSet::label() const
{
return d_ptr->m_label;
}
/*!
Convenience operator. Same as append, with real \a value.
\sa append()
*/
QBoxSet &QBoxSet::operator << (const qreal &value)
{
append(value);
return *this;
}
/*!
Sets a new \a value on the \a index position. For \a index ValuePositions can be used.
*/
void QBoxSet::setValue(const int index, const qreal value)
{
d_ptr->setValue(index, value);
emit valueChanged(index);
}
/*!
Sets all values on the set to 0.
*/
void QBoxSet::clear()
{
d_ptr->clear();
emit cleared();
}
/*!
Returns value of set indexed by \a index. For \a index ValuePositions can be used.
If the index is out of bounds 0.0 is returned.
*/
qreal QBoxSet::at(const int index) const
{
if (index < 0 || index >= 5)
return 0;
return d_ptr->m_values[index];
}
/*!
Returns value of set indexed by \a index. For \a index ValuePositions can be used.
If the index is out of bounds 0.0 is returned.
*/
qreal QBoxSet::operator [](const int index) const
{
return at(index);
}
/*!
Returns count of values appended to the set.
*/
int QBoxSet::count() const
{
return d_ptr->m_appendCount;
}
/*!
Sets pen for set. Boxes of this set are drawn using \a pen
*/
void QBoxSet::setPen(const QPen &pen)
{
if (d_ptr->m_pen != pen) {
d_ptr->m_pen = pen;
emit d_ptr->updatedBox();
emit penChanged();
}
}
/*!
Returns pen of the set.
*/
QPen QBoxSet::pen() const
{
return d_ptr->m_pen;
}
/*!
Sets brush for the set. Boxes of this set are drawn using \a brush
*/
void QBoxSet::setBrush(const QBrush &brush)
{
if (d_ptr->m_brush != brush) {
d_ptr->m_brush = brush;
emit d_ptr->updatedBox();
emit brushChanged();
}
}
/*!
Returns brush of the set.
*/
QBrush QBoxSet::brush() const
{
return d_ptr->m_brush;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QBoxSetPrivate::QBoxSetPrivate(const QString label, QBoxSet *parent) : QObject(parent),
q_ptr(parent),
m_label(label),
m_valuesCount(5),
m_appendCount(0),
m_pen(QPen(Qt::NoPen)),
m_brush(QBrush(Qt::NoBrush)),
m_series(0)
{
m_values = new qreal[m_valuesCount];
}
QBoxSetPrivate::~QBoxSetPrivate()
{
delete[] m_values;
}
bool QBoxSetPrivate::append(qreal value)
{
if (isValidValue(value) && m_appendCount < m_valuesCount) {
m_values[m_appendCount++] = value;
emit restructuredBox();
return true;
}
return false;
}
bool QBoxSetPrivate::append(QList<qreal> values)
{
bool success = false;
for (int i = 0; i < values.count(); i++) {
if (isValidValue(values.at(i)) && m_appendCount < m_valuesCount) {
success = true;
m_values[m_appendCount++] = values.at(i);
}
}
if (success)
emit restructuredBox();
return success;
}
void QBoxSetPrivate::clear()
{
m_appendCount = 0;
for (int i = 0; i < m_valuesCount; i++)
m_values[i] = 0.0;
emit restructuredBox();
}
void QBoxSetPrivate::setValue(const int index, const qreal value)
{
if (index < m_valuesCount) {
m_values[index] = value;
emit updatedLayout();
}
}
qreal QBoxSetPrivate::value(const int index)
{
if (index < 0 || index >= m_valuesCount)
return 0;
return m_values[index];
}
#include "moc_qboxset.cpp"
#include "moc_qboxset_p.cpp"
QT_CHARTS_END_NAMESPACE