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/****************************************************************************
**
** Copyright (C) 2013 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 QtDataVis3D module.
**
** Licensees holding valid Qt Enterprise licenses may use this file in
** accordance with the Qt Enterprise 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
**
****************************************************************************/
#include "qvalueaxis.h"
#include "qvalueaxis_p.h"
QT_DATAVIS3D_BEGIN_NAMESPACE
QValueAxis::QValueAxis() :
QAbstractAxis(new QValueAxisPrivate(this))
{
}
QValueAxis::~QValueAxis()
{
}
void QValueAxis::setRange(qreal min, qreal max)
{
dptr()->setRange(min, max);
setAutoAdjustRange(false);
}
void QValueAxis::setMin(qreal min)
{
dptr()->setMin(min);
setAutoAdjustRange(false);
}
void QValueAxis::setMax(qreal max)
{
dptr()->setMax(max);
setAutoAdjustRange(false);
}
qreal QValueAxis::min() const
{
return dptrc()->m_min;
}
qreal QValueAxis::max() const
{
return dptrc()->m_max;
}
void QValueAxis::setSegmentCount(int count)
{
if (count <= 0) {
qWarning() << "Warning: Illegal segment count automatically adjusted to a legal one:"
<< count << "-> 1";
count = 1;
}
if (dptr()->m_segmentCount != count){
dptr()->m_segmentCount = count;
dptr()->recreateLabels();
emit segmentCountChanged(count);
}
}
int QValueAxis::segmentCount() const
{
return dptrc()->m_segmentCount;
}
void QValueAxis::setSubSegmentCount(int count)
{
if (count <= 0) {
qWarning() << "Warning: Illegal subsegment count automatically adjusted to a legal one:"
<< count << "-> 1";
count = 1;
}
if (dptr()->m_subSegmentCount != count) {
dptr()->m_subSegmentCount = count;
emit subSegmentCountChanged(count);
}
}
int QValueAxis::subSegmentCount() const
{
return dptrc()->m_subSegmentCount;
}
void QValueAxis::setAutoAdjustRange(bool autoAdjust)
{
if (dptr()->m_autoAdjust != autoAdjust) {
dptr()->m_autoAdjust = autoAdjust;
emit autoAdjustRangeChanged(autoAdjust);
}
}
bool QValueAxis::isAutoAdjustRange() const
{
return dptrc()->m_autoAdjust;
}
void QValueAxis::setLabelFormat(const QString &format)
{
if (dptr()->m_labelFormat != format) {
dptr()->m_labelFormat = format;
dptr()->recreateLabels();
emit labelFormatChanged(format);
}
}
QString QValueAxis::labelFormat() const
{
return dptrc()->m_labelFormat;
}
QValueAxisPrivate *QValueAxis::dptr()
{
return static_cast<QValueAxisPrivate *>(d_ptr.data());
}
const QValueAxisPrivate *QValueAxis::dptrc() const
{
return static_cast<const QValueAxisPrivate *>(d_ptr.data());
}
QValueAxisPrivate::QValueAxisPrivate(QValueAxis *q)
: QAbstractAxisPrivate(q, QAbstractAxis::AxisTypeValue),
m_min(0.0),
m_max(10.0),
m_segmentCount(5),
m_subSegmentCount(1),
m_autoAdjust(true)
{
}
QValueAxisPrivate::~QValueAxisPrivate()
{
}
void QValueAxisPrivate::setRange(qreal min, qreal max)
{
// If min >= max, we adjust ranges so that
// m_max becomes (min + 1.0)
// as axes need some kind of valid range.
// TODO: Make "reverse" axes work (i.e. min > max)
bool dirty = false;
if (m_min != min) {
m_min = min;
dirty = true;
}
if (m_max != max) {
if (min >= max) {
m_max = min + 1.0;
qWarning() << "Warning: Tried to set invalid range for value axis."
" Range automatically adjusted to a valid one:"
<< min << "-" << max << "-->" << m_min << "-" << m_max;
} else {
m_max = max;
}
dirty = true;
}
if (dirty) {
recreateLabels();
emit qptr()->rangeChanged(min, max);
}
}
void QValueAxisPrivate::setMin(qreal min)
{
if (m_min != min) {
if (min >= m_max) {
qreal oldMax = m_max;
m_max = min + 1.0;
qWarning() << "Warning: Tried to set minimum to equal or larger than maximum for"
" value axis. Maximum automatically adjusted to a valid one:"
<< oldMax << "-->" << m_max;
}
m_min = min;
recreateLabels();
emit qptr()->rangeChanged(m_min, m_max);
}
}
void QValueAxisPrivate::setMax(qreal max)
{
if (m_max != max) {
if (max <= m_min) {
qreal oldMin = m_min;
m_min = max - 1.0;
qWarning() << "Warning: Tried to set maximum to equal or smaller than minimum for"
" value axis. Minimum automatically adjusted to a valid one:"
<< oldMin << "-->" << m_min;
}
m_max = max;
recreateLabels();
emit qptr()->rangeChanged(m_min, m_max);
}
}
void QValueAxisPrivate::recreateLabels()
{
QStringList newLabels;
newLabels.reserve(m_segmentCount + 1);
// First label is at axis min, which is an extra segment
qreal segmentStep = (m_max - m_min) / m_segmentCount;
for (int i = 0; i < m_segmentCount; i++) {
// TODO Actually do proper formatting
newLabels.append(QString::number(m_min + (segmentStep * i)));
}
// Ensure max label doesn't suffer from any rounding errors
newLabels.append(QString::number(m_max));
if (m_labels != newLabels) {
m_labels = newLabels;
emit q_ptr->labelsChanged();
}
}
QValueAxis *QValueAxisPrivate::qptr()
{
return static_cast<QValueAxis *>(q_ptr);
}
QT_DATAVIS3D_END_NAMESPACE
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