| /**************************************************************************** |
| ** |
| ** 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. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
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| ****************************************************************************/ |
| |
| #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 QtCharts |
| \brief The QLineSeries class presents data in 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 a 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 Presents data in line charts. |
| |
| A line chart is used to show information as a series of data points |
| connected by straight lines. |
| |
| The following QML example shows how to create a simple line chart: |
| \snippet qmlchart/qml/qmlchart/View2.qml 1 |
| \beginfloatleft |
| \image examples_qmlchart2.png |
| \endfloat |
| \clearfloat |
| */ |
| |
| /*! |
| \qmlproperty int LineSeries::count |
| The number of data points in the series. |
| */ |
| |
| /*! |
| \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 \l{Qt::NoPen}{Qt.NoPen}, |
| \l{Qt::SolidLine}{Qt.SolidLine}, \l{Qt::DashLine}{Qt.DashLine}, \l{Qt::DotLine}{Qt.DotLine}, |
| \l{Qt::DashDotLine}{Qt.DashDotLine}, or \l{Qt::DashDotDotLine}{Qt.DashDotDotLine}. |
| Using \l{Qt::CustomDashLine}{Qt.CustomDashLine} is not supported in the QML API. |
| By default, the style is Qt.SolidLine. |
| |
| \sa Qt::PenStyle |
| */ |
| |
| /*! |
| \qmlproperty Qt::PenCapStyle LineSeries::capStyle |
| Controls the cap style of the line. Set to one of \l{Qt::FlatCap}{Qt.FlatCap}, |
| \l{Qt::SquareCap}{Qt.SquareCap} or \l{Qt::RoundCap}{Qt.RoundCap}. By |
| default the cap style is Qt.SquareCap. |
| |
| \sa Qt::PenCapStyle |
| */ |
| |
| /*! |
| Constructs an empty series object that is a child of \a parent. |
| When the series object is added to a QChartView or QChart instance, the ownership |
| 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 the |
| instances and deleted when the instances are destroyed. |
| */ |
| QLineSeries::~QLineSeries() |
| { |
| Q_D(QLineSeries); |
| if (d->m_chart) |
| d->m_chart->removeSeries(this); |
| } |
| |
| /*! |
| \reimp |
| */ |
| 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); |
| } |
| } |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #include "moc_qlineseries.cpp" |