|
|
/****************************************************************************
|
|
|
**
|
|
|
** 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 "qchart.h"
|
|
|
#include "qchart_p.h"
|
|
|
#include "legendscroller_p.h"
|
|
|
#include "qlegend_p.h"
|
|
|
#include "chartbackground_p.h"
|
|
|
#include "qabstractaxis.h"
|
|
|
#include <QGraphicsScene>
|
|
|
#include <QGraphicsSceneResizeEvent>
|
|
|
#include <QGraphicsLayout>
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
/*!
|
|
|
\enum QChart::ChartTheme
|
|
|
|
|
|
This enum describes the theme used by the chart.
|
|
|
|
|
|
\value ChartThemeLight The default theme
|
|
|
\value ChartThemeBlueCerulean
|
|
|
\value ChartThemeDark
|
|
|
\value ChartThemeBrownSand
|
|
|
\value ChartThemeBlueNcs
|
|
|
\value ChartThemeHighContrast
|
|
|
\value ChartThemeBlueIcy
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\enum QChart::AnimationOption
|
|
|
|
|
|
For enabling/disabling animations. Defaults to NoAnimation.
|
|
|
|
|
|
\value NoAnimation
|
|
|
\value GridAxisAnimations
|
|
|
\value SeriesAnimations
|
|
|
\value AllAnimations
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\class QChart
|
|
|
\brief QtCommercial chart API.
|
|
|
|
|
|
QChart is a QGraphicsWidget that you can show in a QGraphicsScene. It manages the graphical
|
|
|
representation of different types of series and other chart related objects like
|
|
|
QAxis and QLegend. If you simply want to show a chart in a layout, you can use the
|
|
|
convenience class QChartView instead of QChart.
|
|
|
\sa QChartView
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QChart::animationOptions
|
|
|
The animation \a options for the chart. Animations are enabled/disabled based on this setting.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QChart::backgroundVisible
|
|
|
Whether the chart background is visible or not.
|
|
|
\sa setBackgroundBrush(), setBackgroundPen()
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QChart::dropShadowEnabled
|
|
|
If set to true, the background drop shadow effect is enabled. If set to false, it is disabled. Note that the drop
|
|
|
shadow effect depends on theme, which means the setting may be changed if you switch to another theme.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QChart::margins
|
|
|
Margins around the plot area. Note that the margin area is used for drawing chart title, legend and axes.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QChart::theme
|
|
|
Theme is a built-in collection of UI style related settings applied for all visual elements of a chart, like colors,
|
|
|
pens, brushes and fonts of series, axes, title and legend. \l {Chart themes demo} shows an example with a few
|
|
|
different themes.
|
|
|
Note: changing the theme will overwrite all customizations previously applied to the series.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\property QChart::title
|
|
|
Title is the name (label) of a chart. It is shown as a headline on top of the chart.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
\fn void QChart::marginsChanged(QRectF newMargins)
|
|
|
The margins around plot area have changed to \a newMargins. This may happen for example if you change title font size,
|
|
|
modify axes or hide/show legend.
|
|
|
*/
|
|
|
|
|
|
/*!
|
|
|
Constructs a chart object which is a child of a\a parent. Parameter \a wFlags is passed to the QGraphicsWidget constructor.
|
|
|
*/
|
|
|
QChart::QChart(QGraphicsItem *parent, Qt::WindowFlags wFlags) : QGraphicsWidget(parent,wFlags),
|
|
|
d_ptr(new QChartPrivate())
|
|
|
{
|
|
|
d_ptr->m_dataset = new ChartDataSet(this);
|
|
|
d_ptr->m_presenter = new ChartPresenter(this,d_ptr->m_dataset);
|
|
|
d_ptr->createConnections();
|
|
|
d_ptr->m_legend = new LegendScroller(this);
|
|
|
d_ptr->m_presenter->setTheme(QChart::ChartThemeLight, false);
|
|
|
//connect(d_ptr->m_presenter, SIGNAL(marginsChanged(QRectF)), this, SIGNAL(marginsChanged(QRectF)));
|
|
|
setLayout(d_ptr->m_presenter->layout());
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Destroys the object and it's children, like series and axis objects added to it.
|
|
|
*/
|
|
|
QChart::~QChart()
|
|
|
{
|
|
|
//delete first presenter , since this is a root of all the graphical items
|
|
|
setLayout(0);
|
|
|
delete d_ptr->m_presenter;
|
|
|
d_ptr->m_presenter=0;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Adds the \a series onto the chart and takes the ownership of the object.
|
|
|
If auto scaling is enabled, re-scales the axes the series is bound to (both the x axis and
|
|
|
the y axis).
|
|
|
|
|
|
\sa removeSeries(), removeAllSeries()
|
|
|
*/
|
|
|
void QChart::addSeries(QAbstractSeries *series)
|
|
|
{
|
|
|
Q_ASSERT(series);
|
|
|
d_ptr->m_dataset->addSeries(series);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Removes the \a series specified in a perameter from the QChartView.
|
|
|
It releses its ownership of the specified QChartSeries object.
|
|
|
It does not delete the pointed QChartSeries data object
|
|
|
\sa addSeries(), removeAllSeries()
|
|
|
*/
|
|
|
void QChart::removeSeries(QAbstractSeries *series)
|
|
|
{
|
|
|
Q_ASSERT(series);
|
|
|
d_ptr->m_dataset->removeSeries(series);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Removes all the QChartSeries that have been added to the QChartView
|
|
|
It also deletes the pointed QChartSeries data objects
|
|
|
\sa addSeries(), removeSeries()
|
|
|
*/
|
|
|
void QChart::removeAllSeries()
|
|
|
{
|
|
|
d_ptr->m_dataset->removeAllSeries();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a brush that is used for painting the background of the chart area.
|
|
|
*/
|
|
|
void QChart::setBackgroundBrush(const QBrush& brush)
|
|
|
{
|
|
|
d_ptr->m_presenter->setBackgroundBrush(brush);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the brush that is used for painting the background of the chart area.
|
|
|
*/
|
|
|
QBrush QChart::backgroundBrush() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->backgroundBrush();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a pen that is used for painting the background of the chart area.
|
|
|
*/
|
|
|
void QChart::setBackgroundPen(const QPen& pen)
|
|
|
{
|
|
|
d_ptr->m_presenter->setBackgroundPen(pen);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the pen that is used for painting the background of the chart area.
|
|
|
*/
|
|
|
QPen QChart::backgroundPen() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->backgroundPen();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the chart \a title. The description text that is drawn above the chart.
|
|
|
*/
|
|
|
void QChart::setTitle(const QString& title)
|
|
|
{
|
|
|
d_ptr->m_presenter->setTitle(title);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the chart title. The description text that is drawn above the chart.
|
|
|
*/
|
|
|
QString QChart::title() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->title();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a font that is used for drawing the chart description text that is rendered above the chart.
|
|
|
*/
|
|
|
void QChart::setTitleFont(const QFont& font)
|
|
|
{
|
|
|
d_ptr->m_presenter->setTitleFont(font);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Gets the font that is used for drawing the chart description text that is rendered above the chart.
|
|
|
*/
|
|
|
QFont QChart::titleFont() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->titleFont();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets the \a brush used for rendering the title text.
|
|
|
*/
|
|
|
void QChart::setTitleBrush(const QBrush &brush)
|
|
|
{
|
|
|
d_ptr->m_presenter->setTitleBrush(brush);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the brush used for rendering the title text.
|
|
|
*/
|
|
|
QBrush QChart::titleBrush() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->titleBrush();
|
|
|
}
|
|
|
|
|
|
void QChart::setTheme(QChart::ChartTheme theme)
|
|
|
{
|
|
|
d_ptr->m_presenter->setTheme(theme);
|
|
|
}
|
|
|
|
|
|
QChart::ChartTheme QChart::theme() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->theme();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Zooms in the view by a factor of 2
|
|
|
*/
|
|
|
void QChart::zoomIn()
|
|
|
{
|
|
|
d_ptr->m_presenter->zoomIn(2.0);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Zooms in the view to a maximum level at which \a rect is still fully visible.
|
|
|
*/
|
|
|
void QChart::zoomIn(const QRectF& rect)
|
|
|
{
|
|
|
if (!rect.isValid()) return;
|
|
|
d_ptr->m_presenter->zoomIn(rect);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Restores the view zoom level to the previous one.
|
|
|
*/
|
|
|
void QChart::zoomOut()
|
|
|
{
|
|
|
d_ptr->m_presenter->zoomOut(2.0);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Zooms in the view by a \a factor.
|
|
|
|
|
|
A factor over 1.0 zooms the view in and factor between 0.0 and 1.0 zooms out.
|
|
|
*/
|
|
|
void QChart::zoom(qreal factor)
|
|
|
{
|
|
|
if (qFuzzyIsNull(factor))
|
|
|
return;
|
|
|
|
|
|
if (qFuzzyCompare(factor, 1.0))
|
|
|
return;
|
|
|
|
|
|
if (factor < 0)
|
|
|
return;
|
|
|
|
|
|
if (factor > 1.0)
|
|
|
d_ptr->m_presenter->zoomIn(factor);
|
|
|
else
|
|
|
d_ptr->m_presenter->zoomOut(1.0 / factor);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the pointer to the x axis object of the chart asociated with the specified \a series
|
|
|
*/
|
|
|
QAbstractAxis* QChart::axisX(QAbstractSeries* series) const
|
|
|
{
|
|
|
return d_ptr->m_dataset->axisX(series);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the pointer to the y axis object of the chart asociated with the specified \a series
|
|
|
*/
|
|
|
QAbstractAxis* QChart::axisY(QAbstractSeries *series) const
|
|
|
{
|
|
|
return d_ptr->m_dataset->axisY(series);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
NOTICE: This function has to be called after series has been added to the chart if no customized axes are set to the chart. Otherwise axisX(), axisY() calls return NULL.
|
|
|
|
|
|
Creates the axes for the chart based on the series that has already been added to the chart.
|
|
|
If QXYSeries derived series has been added to the chart then QValuesAxes are created as X and Y axes for the series.
|
|
|
If QBarSeries or series types derived from it has been added then QBarCategoriesAxis is created as X axis and QValueAxis as Y axis.
|
|
|
If there are several QXYSeries derived series added to the chart and no other series type has been added then only one pair of axes is created.
|
|
|
If there are sevaral series added of different types then each series gets its own axes pair.
|
|
|
|
|
|
NOTICE: if there is more than one x and y axes created then no axis is drawn by default and one needs to choose explicitly which axis should be shown.
|
|
|
|
|
|
Axis specifix to the series can be later obtained from the chart by providing the series as the parameter of axisX(), axisY() function calls.
|
|
|
QPieSeries does not create any axes.
|
|
|
|
|
|
\sa axisX(), axisY(), setAxisX(), setAxisY()
|
|
|
*/
|
|
|
void QChart::createDefaultAxes()
|
|
|
{
|
|
|
d_ptr->m_dataset->createDefaultAxes();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the legend object of the chart. Ownership stays in chart.
|
|
|
*/
|
|
|
QLegend* QChart::legend() const
|
|
|
{
|
|
|
return d_ptr->m_legend;
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns the rect that contains information about margins (distance between chart widget edge and axes).
|
|
|
Individual margins can be obtained by calling left, top, right, bottom on the returned rect.
|
|
|
*/
|
|
|
QRectF QChart::margins() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->margins();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets animation \a options for the chart
|
|
|
*/
|
|
|
|
|
|
void QChart::setAnimationOptions(AnimationOptions options)
|
|
|
{
|
|
|
d_ptr->m_presenter->setAnimationOptions(options);
|
|
|
}
|
|
|
|
|
|
QChart::AnimationOptions QChart::animationOptions() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->animationOptions();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Scrolls the visible area of the chart by the distance defined in the \a dx and \a dy.
|
|
|
*/
|
|
|
void QChart::scroll(qreal dx, qreal dy)
|
|
|
{
|
|
|
d_ptr->m_presenter->scroll(dx, dy);
|
|
|
}
|
|
|
|
|
|
void QChart::setBackgroundVisible(bool visible)
|
|
|
{
|
|
|
d_ptr->m_presenter->setBackgroundVisible(visible);
|
|
|
}
|
|
|
|
|
|
bool QChart::isBackgroundVisible() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->isBackgroundVisible();
|
|
|
}
|
|
|
|
|
|
void QChart::setDropShadowEnabled(bool enabled)
|
|
|
{
|
|
|
d_ptr->m_presenter->setBackgroundDropShadowEnabled(enabled);
|
|
|
}
|
|
|
|
|
|
bool QChart::isDropShadowEnabled() const
|
|
|
{
|
|
|
return d_ptr->m_presenter->isBackgroundDropShadowEnabled();
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Returns all the series that are added to the chart.
|
|
|
|
|
|
\sa addSeries(), removeSeries(), removeAllSeries()
|
|
|
*/
|
|
|
QList<QAbstractSeries*> QChart::series() const
|
|
|
{
|
|
|
return d_ptr->m_dataset->series();
|
|
|
}
|
|
|
|
|
|
void QChart::setMarginsMinimum(const QRectF& margins)
|
|
|
{
|
|
|
d_ptr->m_presenter->setMarginsMinimum(margins);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets \a axis to the chart, which will control the presentation of the \a series
|
|
|
|
|
|
\sa axisX(), axisY(), setAxisY(), createDefaultAxes()
|
|
|
*/
|
|
|
void QChart::setAxisX(QAbstractAxis* axis , QAbstractSeries *series)
|
|
|
{
|
|
|
d_ptr->m_dataset->setAxisX(series,axis);
|
|
|
}
|
|
|
|
|
|
/*!
|
|
|
Sets \a axis to the chart, which will control the presentation of the \a series
|
|
|
|
|
|
\sa axisX(), axisY(), setAxisX(), createDefaultAxes()
|
|
|
*/
|
|
|
void QChart::setAxisY( QAbstractAxis* axis , QAbstractSeries *series)
|
|
|
{
|
|
|
d_ptr->m_dataset->setAxisY(series,axis);
|
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
QChartPrivate::QChartPrivate():
|
|
|
m_legend(0),
|
|
|
m_dataset(0),
|
|
|
m_presenter(0)
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
QChartPrivate::~QChartPrivate()
|
|
|
{
|
|
|
|
|
|
}
|
|
|
|
|
|
void QChartPrivate::createConnections()
|
|
|
{
|
|
|
QObject::connect(m_dataset,SIGNAL(seriesAdded(QAbstractSeries*,Domain*)),m_presenter,SLOT(handleSeriesAdded(QAbstractSeries*,Domain*)));
|
|
|
QObject::connect(m_dataset,SIGNAL(seriesRemoved(QAbstractSeries*)),m_presenter,SLOT(handleSeriesRemoved(QAbstractSeries*)));
|
|
|
QObject::connect(m_dataset,SIGNAL(axisAdded(QAbstractAxis*,Domain*)),m_presenter,SLOT(handleAxisAdded(QAbstractAxis*,Domain*)));
|
|
|
QObject::connect(m_dataset,SIGNAL(axisRemoved(QAbstractAxis*)),m_presenter,SLOT(handleAxisRemoved(QAbstractAxis*)));
|
|
|
//QObject::connect(m_presenter, SIGNAL(marginsChanged(QRectF)), q_ptr, SIGNAL(marginsChanged(QRectF)));
|
|
|
}
|
|
|
|
|
|
#include "moc_qchart.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
