qlineseries.cpp
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r0 | /**************************************************************************** | ||
** | ||||
** Copyright (C) 2016 The Qt Company Ltd. | ||||
** Contact: https://www.qt.io/licensing/ | ||||
** | ||||
** This file is part of the Qt Charts module of the Qt Toolkit. | ||||
** | ||||
** $QT_BEGIN_LICENSE:GPL$ | ||||
** Commercial License Usage | ||||
** Licensees holding valid commercial Qt licenses may use this file in | ||||
** accordance with the commercial license agreement provided with the | ||||
** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and The Qt Company. For licensing terms | ||||
** and conditions see https://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at https://www.qt.io/contact-us. | ||||
** | ||||
** GNU General Public License Usage | ||||
** Alternatively, this file may be used under the terms of the GNU | ||||
** General Public License version 3 or (at your option) any later version | ||||
** approved by the KDE Free Qt Foundation. The licenses are as published by | ||||
** the Free Software Foundation and appearing in the file LICENSE.GPL3 | ||||
** included in the packaging of this file. Please review the following | ||||
** information to ensure the GNU General Public License requirements will | ||||
** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
** | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#include <QtCharts/QLineSeries> | ||||
#include <private/qlineseries_p.h> | ||||
#include <private/linechartitem_p.h> | ||||
#include <private/chartdataset_p.h> | ||||
#include <private/charttheme_p.h> | ||||
#include <private/qchart_p.h> | ||||
QT_CHARTS_BEGIN_NAMESPACE | ||||
/*! | ||||
\class QLineSeries | ||||
\inmodule Qt Charts | ||||
\brief The QLineSeries class is used for making line charts. | ||||
A line chart is used to show information as a series of data points | ||||
connected by straight lines. | ||||
\image examples_linechart.png | ||||
Creating basic line chart is simple: | ||||
\code | ||||
QLineSeries* series = new QLineSeries(); | ||||
series->append(0, 6); | ||||
series->append(2, 4); | ||||
... | ||||
chart->addSeries(series); | ||||
\endcode | ||||
*/ | ||||
/*! | ||||
\qmltype LineSeries | ||||
\instantiates QLineSeries | ||||
\inqmlmodule QtCharts | ||||
\inherits XYSeries | ||||
\brief The LineSeries type is used for making line charts. | ||||
The following QML shows how to create a simple line chart: | ||||
\snippet qmlchart/qml/qmlchart/View2.qml 1 | ||||
\beginfloatleft | ||||
\image examples_qmlchart2.png | ||||
\endfloat | ||||
\clearfloat | ||||
*/ | ||||
/*! | ||||
\fn virtual SeriesType QLineSeries::type() const | ||||
\brief Returns type of series. | ||||
\sa QAbstractSeries, SeriesType | ||||
*/ | ||||
/*! | ||||
\qmlproperty real LineSeries::width | ||||
The width of the line. By default the width is 2.0. | ||||
*/ | ||||
/*! | ||||
\qmlproperty Qt::PenStyle LineSeries::style | ||||
Controls the style of the line. Set to one of Qt.NoPen, Qt.SolidLine, Qt.DashLine, Qt.DotLine, | ||||
Qt.DashDotLine or Qt.DashDotDotLine. Using Qt.CustomDashLine is not supported in the QML API. | ||||
By default the style is Qt.SolidLine. | ||||
*/ | ||||
/*! | ||||
\qmlproperty Qt::PenCapStyle LineSeries::capStyle | ||||
Controls the cap style of the line. Set to one of Qt.FlatCap, Qt.SquareCap or Qt.RoundCap. By | ||||
default the cap style is Qt.SquareCap. | ||||
*/ | ||||
/*! | ||||
Constructs empty series object which is a child of \a parent. | ||||
When series object is added to QChartView or QChart instance ownerships is transferred. | ||||
*/ | ||||
QLineSeries::QLineSeries(QObject *parent) | ||||
: QXYSeries(*new QLineSeriesPrivate(this), parent) | ||||
{ | ||||
} | ||||
/*! | ||||
\internal | ||||
*/ | ||||
QLineSeries::QLineSeries(QLineSeriesPrivate &d, QObject *parent) | ||||
: QXYSeries(d, parent) | ||||
{ | ||||
} | ||||
/*! | ||||
Destroys the object. Series added to QChartView or QChart instances are owned by those, | ||||
and are deleted when mentioned object are destroyed. | ||||
*/ | ||||
QLineSeries::~QLineSeries() | ||||
{ | ||||
Q_D(QLineSeries); | ||||
if (d->m_chart) | ||||
d->m_chart->removeSeries(this); | ||||
} | ||||
QAbstractSeries::SeriesType QLineSeries::type() const | ||||
{ | ||||
return QAbstractSeries::SeriesTypeLine; | ||||
} | ||||
/* | ||||
QDebug operator<< (QDebug debug, const QLineSeries series) | ||||
{ | ||||
Q_ASSERT(series.d_func()->m_x.size() == series.d_func()->m_y.size()); | ||||
int size = series.d_func()->m_x.size(); | ||||
for (int i=0; i<size; i++) { | ||||
debug.nospace() << "(" << series.d_func()->m_x.at(i) << ','<< series.d_func()->m_y.at(i) << ") "; | ||||
} | ||||
return debug.space(); | ||||
} | ||||
*/ | ||||
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
QLineSeriesPrivate::QLineSeriesPrivate(QLineSeries *q) | ||||
: QXYSeriesPrivate(q) | ||||
{ | ||||
} | ||||
void QLineSeriesPrivate::initializeGraphics(QGraphicsItem *parent) | ||||
{ | ||||
Q_Q(QLineSeries); | ||||
LineChartItem *line = new LineChartItem(q,parent); | ||||
m_item.reset(line); | ||||
QAbstractSeriesPrivate::initializeGraphics(parent); | ||||
} | ||||
void QLineSeriesPrivate::initializeTheme(int index, ChartTheme* theme, bool forced) | ||||
{ | ||||
Q_Q(QLineSeries); | ||||
const QList<QColor> colors = theme->seriesColors(); | ||||
if (forced || QChartPrivate::defaultPen() == m_pen) { | ||||
QPen pen; | ||||
pen.setColor(colors.at(index % colors.size())); | ||||
pen.setWidthF(2); | ||||
q->setPen(pen); | ||||
} | ||||
if (forced || QChartPrivate::defaultPen().color() == m_pointLabelsColor) { | ||||
QColor color = theme->labelBrush().color(); | ||||
q->setPointLabelsColor(color); | ||||
} | ||||
} | ||||
#include "moc_qlineseries.cpp" | ||||
QT_CHARTS_END_NAMESPACE | ||||