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Fix bar series zoom out...
Fix bar series zoom out The labels for the QBarCategoryAxis should be only created for the labels that have been defined. Change-Id: Iceffdd49d1f3621a78b5c1e8a98dbe8772044122 Task-number: QTRD-3508 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@theqtcompany.com>

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r2740:377e4516d036
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qscatterseries.cpp
334 lines | 8.7 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt 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.io
**
****************************************************************************/
#include <QtCharts/QScatterSeries>
#include <private/qscatterseries_p.h>
#include <private/scatterchartitem_p.h>
#include <private/chartdataset_p.h>
#include <private/charttheme_p.h>
#include <private/scatteranimation_p.h>
#include <private/qchart_p.h>
/*!
\class QScatterSeries
\inmodule Qt Charts
\brief The QScatterSeries class is used for making scatter charts.
\mainclass
The scatter data is displayed as a collection of points on the chart. Each point determines the position on the horizontal axis
and the vertical axis.
\image examples_scatterchart.png
Creating basic scatter chart is simple:
\code
QScatterSeries* series = new QScatterSeries();
series->append(0, 6);
series->append(2, 4);
...
chart->addSeries(series);
\endcode
*/
/*!
\qmltype ScatterSeries
\instantiates QScatterSeries
\inqmlmodule QtCharts
\inherits XYSeries
\brief The ScatterSeries type is used for making scatter charts.
The following QML shows how to create a chart with two simple scatter series:
\snippet qmlchart/qml/qmlchart/View5.qml 1
\beginfloatleft
\image examples_qmlchart5.png
\endfloat
\clearfloat
*/
/*!
\enum QScatterSeries::MarkerShape
This enum describes the shape used when rendering marker items.
\value MarkerShapeCircle
\value MarkerShapeRectangle
*/
/*!
\property QScatterSeries::brush
Brush used to draw the series.
*/
/*!
\property QScatterSeries::color
Fill (brush) color of the series. This is a convenience property for modifying the color of brush.
\sa QScatterSeries::brush()
*/
/*!
\property QScatterSeries::borderColor
Line (pen) color of the series. This is a convenience property for modifying the color of pen.
\sa QScatterSeries::pen()
*/
/*!
\qmlproperty color ScatterSeries::borderColor
Border (pen) color of the series.
*/
/*!
\qmlproperty real ScatterSeries::borderWidth
The width of the border line. By default the width is 2.0.
*/
/*!
\property QScatterSeries::markerShape
Defines the shape of the marker used to draw the points in the series. The default shape is MarkerShapeCircle.
*/
/*!
\qmlproperty MarkerShape ScatterSeries::markerShape
Defines the shape of the marker used to draw the points in the series. One of ScatterSeries
ScatterSeries.MarkerShapeCircle or ScatterSeries.MarkerShapeRectangle.
The default shape is ScatterSeries.MarkerShapeCircle.
*/
/*!
\property QScatterSeries::markerSize
Defines the size of the marker used to draw the points in the series. The default size is 15.0.
*/
/*!
\qmlproperty real ScatterSeries::markerSize
Defines the size of the marker used to draw the points in the series. The default size is 15.0.
*/
/*!
\qmlproperty QString ScatterSeries::brushFilename
The name of the file used as a brush for the series.
*/
/*!
\fn void QScatterSeries::colorChanged(QColor color)
Signal is emitted when the fill (brush) color has changed to \a color.
*/
/*!
\fn void QScatterSeries::borderColorChanged(QColor color)
Signal is emitted when the line (pen) color has changed to \a color.
*/
/*!
\qmlsignal ScatterSeries::borderColorChanged(color color)
Signal is emitted when the line (pen) color has changed to \a color.
*/
/*!
\fn QAbstractSeries::SeriesType QScatterSeries::type() const
Returns QAbstractSeries::SeriesTypeScatter.
\sa QAbstractSeries, SeriesType
*/
QT_CHARTS_BEGIN_NAMESPACE
/*!
Constructs a series object which is a child of \a parent.
*/
QScatterSeries::QScatterSeries(QObject *parent)
: QXYSeries(*new QScatterSeriesPrivate(this), parent)
{
}
/*!
Destroys the object. Note that adding series to QChart transfers the ownership to the chart.
*/
QScatterSeries::~QScatterSeries()
{
Q_D(QScatterSeries);
if (d->m_chart)
d->m_chart->removeSeries(this);
}
QAbstractSeries::SeriesType QScatterSeries::type() const
{
return QAbstractSeries::SeriesTypeScatter;
}
/*!
Sets \a pen used for drawing points' border on the chart. If the pen is not defined, the
pen from chart theme is used.
\sa QChart::setTheme()
*/
void QScatterSeries::setPen(const QPen &pen)
{
Q_D(QXYSeries);
if (d->m_pen != pen) {
bool emitColorChanged = d->m_pen.color() != pen.color();
d->m_pen = pen;
emit d->updated();
if (emitColorChanged)
emit borderColorChanged(pen.color());
}
}
/*!
Sets \a brush used for drawing points on the chart. If the brush is not defined, brush
from chart theme setting is used.
\sa QChart::setTheme()
*/
void QScatterSeries::setBrush(const QBrush &brush)
{
Q_D(QScatterSeries);
if (d->m_brush != brush) {
bool emitColorChanged = d->m_brush.color() != brush.color();
d->m_brush = brush;
emit d->updated();
if (emitColorChanged)
emit colorChanged(brush.color());
}
}
QBrush QScatterSeries::brush() const
{
Q_D(const QScatterSeries);
if (d->m_brush == QChartPrivate::defaultBrush())
return QBrush();
else
return d->m_brush;
}
void QScatterSeries::setColor(const QColor &color)
{
QBrush b = brush();
if (b == QChartPrivate::defaultBrush())
b = QBrush();
if (b == QBrush())
b.setStyle(Qt::SolidPattern);
b.setColor(color);
setBrush(b);
}
QColor QScatterSeries::color() const
{
return brush().color();
}
void QScatterSeries::setBorderColor(const QColor &color)
{
QPen p = pen();
if (p == QChartPrivate::defaultPen())
p = QPen();
p.setColor(color);
setPen(p);
}
QColor QScatterSeries::borderColor() const
{
return pen().color();
}
QScatterSeries::MarkerShape QScatterSeries::markerShape() const
{
Q_D(const QScatterSeries);
return d->m_shape;
}
void QScatterSeries::setMarkerShape(MarkerShape shape)
{
Q_D(QScatterSeries);
if (d->m_shape != shape) {
d->m_shape = shape;
emit d->updated();
}
}
qreal QScatterSeries::markerSize() const
{
Q_D(const QScatterSeries);
return d->m_size;
}
void QScatterSeries::setMarkerSize(qreal size)
{
Q_D(QScatterSeries);
if (!qFuzzyCompare(d->m_size, size)) {
d->m_size = size;
emit d->updated();
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
QScatterSeriesPrivate::QScatterSeriesPrivate(QScatterSeries *q)
: QXYSeriesPrivate(q),
m_shape(QScatterSeries::MarkerShapeCircle),
m_size(15.0)
{
}
void QScatterSeriesPrivate::initializeGraphics(QGraphicsItem* parent)
{
Q_Q(QScatterSeries);
ScatterChartItem *scatter = new ScatterChartItem(q,parent);
m_item.reset(scatter);
QAbstractSeriesPrivate::initializeGraphics(parent);
}
void QScatterSeriesPrivate::initializeTheme(int index, ChartTheme* theme, bool forced)
{
Q_Q(QScatterSeries);
const QList<QColor> colors = theme->seriesColors();
const QList<QGradient> gradients = theme->seriesGradients();
if (forced || QChartPrivate::defaultPen() == m_pen) {
QPen pen;
pen.setColor(ChartThemeManager::colorAt(gradients.at(index % gradients.size()), 0.0));
pen.setWidthF(2);
q->setPen(pen);
}
if (forced || QChartPrivate::defaultBrush() == m_brush) {
QBrush brush(colors.at(index % colors.size()));
q->setBrush(brush);
}
if (forced || QChartPrivate::defaultPen().color() == m_pointLabelsColor) {
QColor color = theme->labelBrush().color();
q->setPointLabelsColor(color);
}
}
void QScatterSeriesPrivate::initializeAnimations(QChart::AnimationOptions options)
{
ScatterChartItem *item = static_cast<ScatterChartItem *>(m_item.data());
Q_ASSERT(item);
if (item->animation())
item->animation()->stopAndDestroyLater();
if (options.testFlag(QChart::SeriesAnimations))
item->setAnimation(new ScatterAnimation(item));
else
item->setAnimation(0);
QAbstractSeriesPrivate::initializeAnimations(options);
}
#include "moc_qscatterseries.cpp"
QT_CHARTS_END_NAMESPACE