|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2012 Digia Plc
|
|
|
** 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 "qdatetimeaxis.h"
|
|
|
#include "qdatetimeaxis_p.h"
|
|
|
#include "chartdatetimeaxisx_p.h"
|
|
|
#include "chartdatetimeaxisy_p.h"
|
|
|
#include "abstractdomain_p.h"
|
|
|
#include "qchart.h"
|
|
|
#include <float.h>
|
|
|
#include <cmath>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
/*!
|
|
|
\class QDateTimeAxis
|
|
|
\brief The QDateTimeAxis class is used for manipulating chart's axis.
|
|
|
\mainclass
|
|
|
|
|
|
The labels can be configured by setting an appropriate DateTime format.
|
|
|
QDateTimeAxis works correctly with dates from 4714 BCE to 287396 CE
|
|
|
There are also other limitiation related to QDateTime . Please refer to QDateTime documentation.
|
|
|
QDateTimeAxis can be setup to show axis line with tick marks, grid lines and shades.
|
|
|
|
|
|
NOTE: QDateTimeAxis is disabled on ARM architecture.
|
|
|
|
|
|
\image api_datatime_axis.png
|
|
|
|
|
|
QDateTimeAxis can be used with QLineSeries, QSplineSeries or QScatterSeries.
|
|
|
To add a data point to the series QDateTime::toMSecsSinceEpoch() is used.
|
|
|
\code
|
|
|
QLineSeries *series = new QLineSeries;
|
|
|
|
|
|
QDateTime xValue;
|
|
|
xValue.setDate(QDate(2012, 1 , 18));
|
|
|
xValue.setTime(QTime(9, 34));
|
|
|
qreal yValue = 12;
|
|
|
series->append(xValue.toMSecsSinceEpoch(), yValue);
|
|
|
|
|
|
xValue.setDate(QDate(2013, 5 , 11));
|
|
|
xValue.setTime(QTime(11, 14));
|
|
|
qreal yValue = 22;
|
|
|
series->append(xValue.toMSecsSinceEpoch(), yValue);
|
|
|
\endcode
|
|
|
|
|
|
Adding the series to the chart and setting up the QDateTimeAxis.
|
|
|
\code
|
|
|
QChartView *chartView = new QChartView;
|
|
|
chartView->chart()->addSeries(series);
|
|
|
|
|
|
// ...
|
|
|
QDateTimeAxis *axisX = new QDateTimeAxis;
|
|
|
axisX->setFormat("dd-MM-yyyy h:mm");
|
|
|
chartView->chart()->setAxisX(axisX, series);
|
|
|
\endcode
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\qmlclass DateTimeAxis QDateTimeAxis
|
|
|
\brief The DateTimeAxis element is used for manipulating chart's axes
|
|
|
\inherits AbstractAxis
|
|
|
|
|
|
The labels can be configured by setting an appropriate DateTime format.
|
|
|
Note that any date before 4714 BCE or after about 1.4 million CE may not be accurately stored.
|
|
|
DateTimeAxis can be setup to show axis line with tick marks, grid lines and shades.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QDateTimeAxis::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.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty real ValuesAxis::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.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QDateTimeAxis::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.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty real ValuesAxis::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.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QDateTimeAxis::minChanged(QDateTime min)
|
|
|
Axis emits signal when \a min of axis has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal ValuesAxis::onMinChanged(QDateTime min)
|
|
|
Axis emits signal when \a min of axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QDateTimeAxis::maxChanged(QDateTime max)
|
|
|
Axis emits signal when \a max of axis has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal ValuesAxis::onMaxChanged(QDateTime max)
|
|
|
Axis emits signal when \a max of axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QDateTimeAxis::rangeChanged(QDateTime min, QDateTime max)
|
|
|
Axis emits signal when \a min or \a max of axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QDateTimeAxis::tickCount
|
|
|
The number of tick marks for the axis.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\qmlproperty int DateTimeAxis::tickCount
|
|
|
The number of tick marks for the axis.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QDateTimeAxis::format
|
|
|
The format string that is used when creating label for the axis out of a QDateTime object.
|
|
|
Check QDateTime documentation for information on how the string should be defined.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlproperty string DateTimeAxis::format
|
|
|
The format string that is used when creating label for the axis out of a QDateTime object.
|
|
|
Check QDateTime documentation for information on how the string should be defined.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QDateTimeAxis::formatChanged(QString format)
|
|
|
Axis emits signal when \a format of the axis has changed.
|
|
|
*/
|
|
|
/*!
|
|
|
\qmlsignal DateTimeAxis::onFormatChanged(string format)
|
|
|
Axis emits signal when \a format of the axis has changed.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs an axis object which is a child of \a parent.
|
|
|
*/
|
|
|
QDateTimeAxis::QDateTimeAxis(QObject *parent) :
|
|
|
QAbstractAxis(*new QDateTimeAxisPrivate(this), parent)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\internal
|
|
|
*/
|
|
|
QDateTimeAxis::QDateTimeAxis(QDateTimeAxisPrivate &d, QObject *parent) : QAbstractAxis(d, parent)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the object
|
|
|
*/
|
|
|
QDateTimeAxis::~QDateTimeAxis()
|
|
|
{
|
|
|
Q_D(QDateTimeAxis);
|
|
|
if (d->m_chart)
|
|
|
d->m_chart->removeAxis(this);
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxis::setMin(QDateTime min)
|
|
|
{
|
|
|
Q_D(QDateTimeAxis);
|
|
|
if (min.isValid())
|
|
|
d->setRange(min.toMSecsSinceEpoch(), qMax(d->m_max, qreal(min.toMSecsSinceEpoch())));
|
|
|
}
|
|
|
|
|
|
QDateTime QDateTimeAxis::min() const
|
|
|
{
|
|
|
Q_D(const QDateTimeAxis);
|
|
|
return QDateTime::fromMSecsSinceEpoch(d->m_min);
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxis::setMax(QDateTime max)
|
|
|
{
|
|
|
Q_D(QDateTimeAxis);
|
|
|
if (max.isValid())
|
|
|
d->setRange(qMin(d->m_min, qreal(max.toMSecsSinceEpoch())), max.toMSecsSinceEpoch());
|
|
|
}
|
|
|
|
|
|
QDateTime QDateTimeAxis::max() const
|
|
|
{
|
|
|
Q_D(const QDateTimeAxis);
|
|
|
return QDateTime::fromMSecsSinceEpoch(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 QDateTimeAxis::setRange(QDateTime min, QDateTime max)
|
|
|
{
|
|
|
Q_D(QDateTimeAxis);
|
|
|
if (!min.isValid() || !max.isValid() || min > max)
|
|
|
return;
|
|
|
|
|
|
d->setRange(min.toMSecsSinceEpoch(),max.toMSecsSinceEpoch());
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxis::setFormat(QString format)
|
|
|
{
|
|
|
Q_D(QDateTimeAxis);
|
|
|
if (d->m_format != format) {
|
|
|
d->m_format = format;
|
|
|
emit formatChanged(format);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
QString QDateTimeAxis::format() const
|
|
|
{
|
|
|
Q_D(const QDateTimeAxis);
|
|
|
return d->m_format;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets \a count for ticks on the axis.
|
|
|
*/
|
|
|
void QDateTimeAxis::setTickCount(int count)
|
|
|
{
|
|
|
Q_D(QDateTimeAxis);
|
|
|
if (d->m_tickCount != count && count >= 2) {
|
|
|
d->m_tickCount = count;
|
|
|
emit tickCountChanged(count);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
\fn int QDateTimeAxis::tickCount() const
|
|
|
Return number of ticks on the axis
|
|
|
*/
|
|
|
int QDateTimeAxis::tickCount() const
|
|
|
{
|
|
|
Q_D(const QDateTimeAxis);
|
|
|
return d->m_tickCount;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the type of the axis
|
|
|
*/
|
|
|
QAbstractAxis::AxisType QDateTimeAxis::type() const
|
|
|
{
|
|
|
return AxisTypeDateTime;
|
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
QDateTimeAxisPrivate::QDateTimeAxisPrivate(QDateTimeAxis *q)
|
|
|
: QAbstractAxisPrivate(q),
|
|
|
m_min(0),
|
|
|
m_max(0),
|
|
|
m_tickCount(5)
|
|
|
{
|
|
|
m_format = "dd-MM-yyyy\nh:mm";
|
|
|
}
|
|
|
|
|
|
QDateTimeAxisPrivate::~QDateTimeAxisPrivate()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxisPrivate::setRange(qreal min,qreal max)
|
|
|
{
|
|
|
Q_Q(QDateTimeAxis);
|
|
|
|
|
|
bool changed = false;
|
|
|
|
|
|
if (m_min != min) {
|
|
|
m_min = min;
|
|
|
changed = true;
|
|
|
emit q->minChanged(QDateTime::fromMSecsSinceEpoch(min));
|
|
|
}
|
|
|
|
|
|
if (m_max != max) {
|
|
|
m_max = max;
|
|
|
changed = true;
|
|
|
emit q->maxChanged(QDateTime::fromMSecsSinceEpoch(max));
|
|
|
}
|
|
|
|
|
|
if (changed) {
|
|
|
emit q->rangeChanged(QDateTime::fromMSecsSinceEpoch(min), QDateTime::fromMSecsSinceEpoch(max));
|
|
|
emit rangeChanged(m_min,m_max);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
|
|
|
void QDateTimeAxisPrivate::setMin(const QVariant &min)
|
|
|
{
|
|
|
Q_Q(QDateTimeAxis);
|
|
|
if (min.canConvert(QVariant::DateTime))
|
|
|
q->setMin(min.toDateTime());
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxisPrivate::setMax(const QVariant &max)
|
|
|
{
|
|
|
|
|
|
Q_Q(QDateTimeAxis);
|
|
|
if (max.canConvert(QVariant::DateTime))
|
|
|
q->setMax(max.toDateTime());
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxisPrivate::setRange(const QVariant &min, const QVariant &max)
|
|
|
{
|
|
|
Q_Q(QDateTimeAxis);
|
|
|
if (min.canConvert(QVariant::DateTime) && max.canConvert(QVariant::DateTime))
|
|
|
q->setRange(min.toDateTime(), max.toDateTime());
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxisPrivate::initializeGraphics(QGraphicsItem* parent)
|
|
|
{
|
|
|
Q_Q(QDateTimeAxis);
|
|
|
ChartAxis* axis(0);
|
|
|
if (orientation() == Qt::Vertical)
|
|
|
axis = new ChartDateTimeAxisY(q,parent);
|
|
|
if (orientation() == Qt::Horizontal)
|
|
|
axis = new ChartDateTimeAxisX(q,parent);
|
|
|
|
|
|
m_item.reset(axis);
|
|
|
QAbstractAxisPrivate::initializeGraphics(parent);
|
|
|
}
|
|
|
|
|
|
void QDateTimeAxisPrivate::initializeDomain(AbstractDomain *domain)
|
|
|
{
|
|
|
if (m_max == m_min) {
|
|
|
if (orientation() == Qt::Vertical)
|
|
|
setRange(domain->minY(), domain->maxY());
|
|
|
else
|
|
|
setRange(domain->minX(), domain->maxX());
|
|
|
} else {
|
|
|
if (orientation() == Qt::Vertical)
|
|
|
domain->setRangeY(m_min, m_max);
|
|
|
else
|
|
|
domain->setRangeX(m_min, m_max);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
#include "moc_qdatetimeaxis.cpp"
|
|
|
#include "moc_qdatetimeaxis_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
