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qchartaxis.cpp
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/****************************************************************************
**
** 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 "qchartaxis.h"
#include "qchartaxis_p.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
/*!
\class QChartAxis
\brief The QChartAxis class is used for manipulating chart's axis
and for adding optional axes to the chart.
\mainclass
There is only one x Axis, however there can be multiple y axes.
Each chart series can be bound to exactly one Y axis and the share common X axis.
Axis can be setup to show axis line with ticks, gird lines and shades.
*/
/*!
\fn bool QChartAxis::isAxisVisible() const
\brief Returns if axis is visible
\sa setAxisVisible()
*/
/*!
\fn QPen QChartAxis::axisPen() const
\brief Returns pen used to draw axis and ticks.
\sa setAxisPen()
*/
/*!
\fn bool QChartAxis::isGridLineVisible() const
\brief Returns if grid is visible
\sa setGridLineVisible()
*/
/*!
\fn QPen QChartAxis::gridLinePen() const
\brief Returns pen used to draw grid.
\sa setGridLinePen()
*/
/*!
\fn bool QChartAxis::labelsVisible() const
\brief Returns if grid is visible
\sa setLabelsVisible()
*/
/*!
\fn QPen QChartAxis::labelsPen() const
\brief Returns the pen used to labels.
\sa setLabelsPen()
*/
/*!
\fn QBrush QChartAxis::labelsBrush() const
\brief Returns brush used to draw labels.
\sa setLabelsBrush()
*/
/*!
\fn QFont QChartAxis::labelsFont() const
\brief Returns font used to draw labels.
\sa setLabelsFont()
*/
/*!
\fn QFont QChartAxis::labelsAngle() const
\brief Returns angle used to draw labels.
\sa setLabelsAngle()
*/
/*!
\fn bool QChartAxis::shadesVisible() const
\brief Returns if shades are visible.
\sa setShadesVisible()
*/
/*!
\fn qreal QChartAxis::shadesOpacity() const
\brief Returns opacity of shades.
*/
/*!
\fn QPen QChartAxis::shadesPen() const
\brief Returns pen used to draw shades.
\sa setShadesPen()
*/
/*!
\fn QBrush QChartAxis::shadesBrush() const
\brief Returns brush used to draw shades.
\sa setShadesBrush()
*/
/*!
\fn qreal QChartAxis::min() const
\brief Returns minimum value on the axis.
\sa setMin()
*/
/*!
\fn qreal QChartAxis::max() const
\brief Returns maximim value on the axis.
\sa setMax()
*/
/*!
\fn void QChartAxis::minChanged(qreal min)
\brief Axis emits signal when \a min of axis has changed.
*/
/*!
\fn void QChartAxis::maxChanged(qreal max)
\brief Axis emits signal when \a max of axis has changed.
*/
/*!
\fn void QChartAxis::rangeChanged(qreal min, qreal max)
\brief Axis emits signal when \a min or \a max of axis has changed.
*/
/*!
\fn int QChartAxis::ticksCount() const
\brief Return number of ticks on the axis
\sa setTicksCount()
*/
/*!
\fn QChartAxisCategories* QChartAxis::categories()
\brief Returns pointer to the list of categories which correspond to the values on the axis.
*/
/*!
\fn void QChartAxis::ticksCountChanged(int count)
\brief Emits the new \a count of ticks on the axis
Signal is emitted when the number of the ticks on the axis has been changed to a different value.
Parementer count\a count is the new number of ticks on the axis.
*/
/*!
Constructs new axis object which is a child of \a parent. Ownership is taken by
QChatView or QChart when axis added.
*/
QChartAxis::QChartAxis(QObject *parent) : QObject(parent),
d_ptr(new QChartAxisPrivate(this))
{
}
/*!
Destructor of the axis object. When axis is added to chart, chart object takes ownership.
*/
QChartAxis::~QChartAxis()
{
}
/*!
Sets \a pen used to draw axis line and ticks.
*/
void QChartAxis::setAxisPen(const QPen &pen)
{
if (d_ptr->m_axisPen!=pen) {
d_ptr->m_axisPen = pen;
emit d_ptr->updated();
}
}
QPen QChartAxis::axisPen() const
{
return d_ptr->m_axisPen;
}
/*!
Sets if axis and ticks are \a visible.
*/
void QChartAxis::setAxisVisible(bool visible)
{
if (d_ptr->m_axisVisible != visible) {
d_ptr->m_axisVisible = visible;
emit d_ptr->updated();
}
}
bool QChartAxis::isAxisVisible() const
{
return d_ptr->m_axisVisible;
}
/*!
Sets if grid line is \a visible.
*/
void QChartAxis::setGridLineVisible(bool visible)
{
if (d_ptr->m_gridLineVisible != visible) {
d_ptr->m_gridLineVisible = visible;
emit d_ptr->updated();
}
}
bool QChartAxis::isGridLineVisible() const
{
return d_ptr->m_gridLineVisible;
}
/*!
Sets \a pen used to draw grid line.
*/
void QChartAxis::setGridLinePen(const QPen &pen)
{
if (d_ptr->m_gridLinePen != pen) {
d_ptr->m_gridLinePen = pen;
emit d_ptr->updated();
}
}
QPen QChartAxis::gridLinePen() const
{
return d_ptr->m_gridLinePen;
}
/*!
Sets if axis' labels are \a visible.
*/
void QChartAxis::setLabelsVisible(bool visible)
{
if (d_ptr->m_labelsVisible != visible) {
d_ptr->m_labelsVisible = visible;
emit d_ptr->updated();
}
}
bool QChartAxis::labelsVisible() const
{
return d_ptr->m_labelsVisible;
}
/*!
Sets \a pen used to draw labels.
*/
void QChartAxis::setLabelsPen(const QPen &pen)
{
if (d_ptr->m_labelsPen != pen) {
d_ptr->m_labelsPen = pen;
emit d_ptr->updated();
}
}
QPen QChartAxis::labelsPen() const
{
return d_ptr->m_labelsPen;
}
/*!
Sets \a brush used to draw labels.
*/
void QChartAxis::setLabelsBrush(const QBrush &brush)
{
if (d_ptr->m_labelsBrush != brush) {
d_ptr->m_labelsBrush = brush;
emit d_ptr->updated();
}
}
QBrush QChartAxis::labelsBrush() const
{
return d_ptr->m_labelsBrush;
}
/*!
Sets \a font used to draw labels.
*/
void QChartAxis::setLabelsFont(const QFont &font)
{
if (d_ptr->m_labelsFont != font) {
d_ptr->m_labelsFont = font;
emit d_ptr->updated();
}
}
QFont QChartAxis::labelsFont() const
{
return d_ptr->m_labelsFont;
}
/*!
Sets \a angle for all the labels on given axis.
*/
void QChartAxis::setLabelsAngle(int angle)
{
if (d_ptr->m_labelsAngle != angle) {
d_ptr->m_labelsAngle = angle;
emit d_ptr->updated();
}
}
int QChartAxis::labelsAngle() const
{
return d_ptr->m_labelsAngle;
}
/*!
Sets if shades are \a visible.
*/
void QChartAxis::setShadesVisible(bool visible)
{
if (d_ptr->m_shadesVisible != visible) {
d_ptr->m_shadesVisible = visible;
emit d_ptr->updated();
}
}
bool QChartAxis::shadesVisible() const
{
return d_ptr->m_shadesVisible;
}
/*!
Sets \a pen used to draw shades.
*/
void QChartAxis::setShadesPen(const QPen &pen)
{
if (d_ptr->m_shadesPen != pen) {
d_ptr->m_shadesPen = pen;
emit d_ptr->updated();
}
}
QPen QChartAxis::shadesPen() const
{
return d_ptr->m_shadesPen;
}
/*!
Sets \a brush used to draw shades.
*/
void QChartAxis::setShadesBrush(const QBrush &brush)
{
if (d_ptr->m_shadesBrush != brush) {
d_ptr->m_shadesBrush = brush;
emit d_ptr->updated();
}
}
QBrush QChartAxis::shadesBrush() const
{
return d_ptr->m_shadesBrush;
}
/*!
Sets \a opacity of the shades.
*/
void QChartAxis::setShadesOpacity(qreal opacity)
{
if (d_ptr->m_shadesOpacity != opacity) {
d_ptr->m_shadesOpacity=opacity;
emit d_ptr->updated();
}
}
qreal QChartAxis::shadesOpacity() const
{
return d_ptr->m_shadesOpacity;
}
/*!
Sets \a min value on the axis.
*/
void QChartAxis::setMin(qreal min)
{
setRange(min,d_ptr->m_max);
}
qreal QChartAxis::min() const
{
return d_ptr->m_min;
}
/*!
Sets \a max value on the axis.
*/
void QChartAxis::setMax(qreal max)
{
setRange(d_ptr->m_min,max);
}
qreal QChartAxis::max() const
{
return d_ptr->m_max;
}
/*!
Sets range from \a min to \a max on the axis.
*/
void QChartAxis::setRange(qreal min, qreal max)
{
bool changed = false;
if (!qFuzzyIsNull(d_ptr->m_min - min)) {
d_ptr->m_min = min;
changed = true;
emit minChanged(min);
}
if (!qFuzzyIsNull(d_ptr->m_max - max)) {
d_ptr->m_max = max;
changed = true;
emit maxChanged(max);
}
if (changed) {
emit rangeChanged(d_ptr->m_min,d_ptr->m_max);
emit d_ptr->changed(d_ptr->m_min, d_ptr->m_max, d_ptr->m_ticksCount, d_ptr->m_niceNumbers);
}
}
/*!
Sets \a count for ticks on the axis.
*/
void QChartAxis::setTicksCount(int count)
{
if (d_ptr->m_ticksCount != count) {
d_ptr->m_ticksCount = count;
emit ticksCountChanged(count);
emit d_ptr->changed(d_ptr->m_min, d_ptr->m_max, d_ptr->m_ticksCount, d_ptr->m_niceNumbers);
}
}
int QChartAxis::ticksCount() const
{
return d_ptr->m_ticksCount;
}
/*!
Sets axis, shades, labels and grid lines to be visible.
*/
void QChartAxis::show()
{
d_ptr->m_axisVisible=true;
d_ptr->m_gridLineVisible=true;
d_ptr->m_labelsVisible=true;
d_ptr->m_shadesVisible=true;
emit d_ptr->updated();
}
/*!
Sets axis, shades, labels and grid lines to not be visible.
*/
void QChartAxis::hide()
{
d_ptr->m_axisVisible = false;
d_ptr->m_gridLineVisible = false;
d_ptr->m_labelsVisible = false;
d_ptr->m_shadesVisible = false;
emit d_ptr->updated();
}
/*!
Sets the nice numbers state to \a enable
*/
void QChartAxis::setNiceNumbersEnabled(bool enable)
{
if (d_ptr->m_niceNumbers != enable){
d_ptr->m_niceNumbers = enable;
emit d_ptr->changed(d_ptr->m_min, d_ptr->m_max, d_ptr->m_ticksCount, d_ptr->m_niceNumbers);
}
}
/*!
Returns whether nice numbers are enabled or not.
*/
bool QChartAxis::niceNumbersEnabled() const
{
return d_ptr->m_niceNumbers;
}
QChartAxisCategories* QChartAxis::categories()
{
return &d_ptr->m_category;
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QChartAxisPrivate::QChartAxisPrivate(QChartAxis* q):
q_ptr(q),
m_axisVisible(true),
m_gridLineVisible(true),
m_labelsVisible(true),
m_labelsAngle(0),
m_shadesVisible(false),
m_shadesOpacity(1.0),
m_min(0),
m_max(0),
m_ticksCount(5),
m_niceNumbers(false)
{
}
QChartAxisPrivate::~QChartAxisPrivate()
{
}
void QChartAxisPrivate::handleAxisRangeChanged(qreal min, qreal max,int count)
{
q_ptr->setRange(min,max);
q_ptr->setTicksCount(count);
}
#include "moc_qchartaxis.cpp"
#include "moc_qchartaxis_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE