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Added posibility to replace category in QBarCategoriesAxis
Added posibility to replace category in QBarCategoriesAxis
Marek Rosa - - Load All Authors

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qdatetimeaxis.cpp
334 lines | 8.5 KiB | text/x-c | CppLexer
/ src / axis / datetimeaxis / qdatetimeaxis.cpp
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Marek Rosa
Added QDateTimeAxis
 r1717 /****************************************************************************
**
** 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 "domain_p.h"
#include <cmath>
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
/*!
\class QDateTimeAxis
\brief The QDateTimeAxis class is used for manipulating chart's axis.
\mainclass
Marek Rosa
Enabled more tests in qdatetimeaxis
 r1737 Note that any date before 4800 BCE or after about 1.4 million CE may not be accurately stored.
Marek Rosa
Added QDateTimeAxis
 r1717 ValuesAxis can be setup to show axis line with tick marks, grid lines and shades.
Values of axis are drawn to position of ticks
*/
/*!
\qmlclass ValuesAxis QDateTimeAxis
\brief The ValuesAxis element is used for manipulating chart's axes
ValueAxis can be setup to show axis line with tick marks, grid lines and shades.
Values of axis are drawn to position of ticks
To access Axes you can use ChartView API. For example:
\code
ChartView {
ValuesAxis {
id: xAxis
min: 0
max: 10
}
// Add a few series...
}
\endcode
*/
/*!
\property QDateTimeAxis::min
Defines the minimum value on the axis.
Marek Rosa
Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
 r1730 When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
Marek Rosa
Added QDateTimeAxis
 r1717 */
/*!
\qmlproperty real ValuesAxis::min
Defines the minimum value on the axis.
Marek Rosa
Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
 r1730 When setting this property the max is adjusted if necessary, to ensure that the range remains valid.
Marek Rosa
Added QDateTimeAxis
 r1717 */
/*!
\property QDateTimeAxis::max
Defines the maximum value on the axis.
Marek Rosa
Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
 r1730 When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
Marek Rosa
Added QDateTimeAxis
 r1717 */
/*!
\qmlproperty real ValuesAxis::max
Defines the maximum value on the axis.
Marek Rosa
Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
 r1730 When setting this property the min is adjusted if necessary, to ensure that the range remains valid.
Marek Rosa
Added QDateTimeAxis
 r1717 */
/*!
Marek Rosa
Docs update
 r1731 \fn void QDateTimeAxis::minChanged(QDateTime min)
Marek Rosa
Added QDateTimeAxis
 r1717 Axis emits signal when \a min of axis has changed.
*/
/*!
Marek Rosa
Docs update
 r1731 \qmlsignal ValuesAxis::onMinChanged(QDateTime min)
Marek Rosa
Added QDateTimeAxis
 r1717 Axis emits signal when \a min of axis has changed.
*/
/*!
Marek Rosa
Docs update
 r1731 \fn void QDateTimeAxis::maxChanged(QDateTime max)
Marek Rosa
Added QDateTimeAxis
 r1717 Axis emits signal when \a max of axis has changed.
*/
/*!
Marek Rosa
Docs update
 r1731 \qmlsignal ValuesAxis::onMaxChanged(QDateTime max)
Marek Rosa
Added QDateTimeAxis
 r1717 Axis emits signal when \a max of axis has changed.
*/
/*!
Marek Rosa
Docs update
 r1731 \fn void QDateTimeAxis::rangeChanged(QDateTime min, QDateTime max)
Marek Rosa
Added QDateTimeAxis
 r1717 Axis emits signal when \a min or \a max of axis has changed.
*/
/*!
\property QDateTimeAxis::ticksCount
The number of tick marks for the axis.
*/
/*!
\qmlproperty int ValuesAxis::ticksCount
The number of tick marks for the axis.
*/
/*!
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()
{
}
void QDateTimeAxis::setMin(QDateTime min)
{
Q_D(QDateTimeAxis);
Marek Rosa
Ranges on values, intervals and datatime axes cannot be set to be invalid
 r1728 if (min.isValid())
setRange(min, qMax(d->m_max, min));
Marek Rosa
Added QDateTimeAxis
 r1717 }
QDateTime QDateTimeAxis::min() const
{
Q_D(const QDateTimeAxis);
return d->m_min;
}
void QDateTimeAxis::setMax(QDateTime max)
{
Q_D(QDateTimeAxis);
Marek Rosa
Ranges on values, intervals and datatime axes cannot be set to be invalid
 r1728 if (max.isValid())
setRange(qMin(d->m_min, max), max);
Marek Rosa
Added QDateTimeAxis
 r1717 }
QDateTime QDateTimeAxis::max() const
{
Q_D(const QDateTimeAxis);
return d->m_max;
}
/*!
Sets range from \a min to \a max on the axis.
Marek Rosa
Updated min, max properties of values and datetime axes descriptions with information about maintaining the range validity
 r1730 If min is greater than max then this function returns without making any changes.
Marek Rosa
Added QDateTimeAxis
 r1717 */
void QDateTimeAxis::setRange(QDateTime min, QDateTime max)
{
Q_D(QDateTimeAxis);
Marek Rosa
Ranges on values, intervals and datatime axes cannot be set to be invalid
 r1728 if (!min.isValid() || !max.isValid() || min > max)
return;
Marek Rosa
Added QDateTimeAxis
 r1717
Marek Rosa
Ranges on values, intervals and datatime axes cannot be set to be invalid
 r1728 bool changed = false;
Marek Rosa
Added QDateTimeAxis
 r1717 if (d->m_min != min) {
d->m_min = min;
changed = true;
emit minChanged(min);
}
if (d->m_max != max) {
d->m_max = max;
changed = true;
emit maxChanged(max);
}
// if(d->m_niceNumbers) d->looseNiceNumbers(d->m_min, d->m_max, d->m_tickCount);
if (changed) {
emit rangeChanged(d->m_min,d->m_max);
d->emitUpdated();
}
}
Marek Rosa
Docs update
 r1731 /*!
Sets \a format string that is used when creating label for the axis out of the QDateTime object.
Check QDateTime documentation for information on how the string should be defined.
\sa formatString()
*/
Marek Rosa
Added QDateTimeAxis
 r1717 void QDateTimeAxis::setFormatString(QString format)
{
Q_D(QDateTimeAxis);
d->m_format = format;
}
Marek Rosa
Docs update
 r1731 /*!
Returns the format string that is used when creating label for the axis out of the QDateTime object.
Check QDateTime documentation for information on how the string should be defined.
\sa setFormatString()
*/
Marek Rosa
Added QDateTimeAxis
 r1717 QString QDateTimeAxis::formatString() const
{
Q_D(const QDateTimeAxis);
return d->m_format;
}
/*!
Sets \a count for ticks on the axis.
*/
void QDateTimeAxis::setTicksCount(int count)
{
Q_D(QDateTimeAxis);
if (d->m_tickCount != count && count >=2) {
d->m_tickCount = count;
d->emitUpdated();
}
}
/*!
\fn int QDateTimeAxis::ticksCount() const
Return number of ticks on the axis
*/
int QDateTimeAxis::ticksCount() 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_tickCount(5)
{
m_min = QDateTime::fromMSecsSinceEpoch(0);
m_max = QDateTime::fromMSecsSinceEpoch(0);
Marek Rosa
Added DateTimeAxis Example
 r1739 m_format = "dd-MMM-yy\nh:mm";
Marek Rosa
Added QDateTimeAxis
 r1717 }
QDateTimeAxisPrivate::~QDateTimeAxisPrivate()
{
}
void QDateTimeAxisPrivate::handleDomainUpdated()
{
Q_Q(QDateTimeAxis);
Domain* domain = qobject_cast<Domain*>(sender());
Q_ASSERT(domain);
if(orientation()==Qt::Horizontal){
q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX()));
}else if(orientation()==Qt::Vertical){
q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY()));
}
}
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());
}
ChartAxis* QDateTimeAxisPrivate::createGraphics(ChartPresenter* presenter)
{
Q_Q(QDateTimeAxis);
if(m_orientation == Qt::Vertical){
return new ChartDateTimeAxisY(q,presenter);
}else{
return new ChartDateTimeAxisX(q,presenter);
}
}
void QDateTimeAxisPrivate::intializeDomain(Domain* domain)
{
Q_Q(QDateTimeAxis);
if(m_max == m_min) {
if(m_orientation==Qt::Vertical){
q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minY()), QDateTime::fromMSecsSinceEpoch(domain->maxY()));
}else{
q->setRange(QDateTime::fromMSecsSinceEpoch(domain->minX()), QDateTime::fromMSecsSinceEpoch(domain->maxX()));
}
} else {
if(m_orientation==Qt::Vertical){
domain->setRangeY(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch());
}else{
domain->setRangeX(m_min.toMSecsSinceEpoch(), m_max.toMSecsSinceEpoch());
}
}
}
#include "moc_qdatetimeaxis.cpp"
#include "moc_qdatetimeaxis_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE