qlineseries.cpp
180 lines
| 5.2 KiB
| text/x-c
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CppLexer
Miikka Heikkinen
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r2854 | /**************************************************************************** | ||
Jani Honkonen
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r794 | ** | ||
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Miikka Heikkinen
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r2854 | ** Copyright (C) 2016 The Qt Company Ltd. | ||
| ** Contact: https://www.qt.io/licensing/ | ||||
|
Jani Honkonen
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r794 | ** | ||
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Miikka Heikkinen
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r2854 | ** This file is part of the Qt Charts module of the Qt Toolkit. | ||
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Jani Honkonen
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r794 | ** | ||
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Miikka Heikkinen
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r2854 | ** $QT_BEGIN_LICENSE:GPL$ | ||
Titta Heikkala
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r2845 | ** 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 | ||||
|
Miikka Heikkinen
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r2854 | ** 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. | ||||
|
Jani Honkonen
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r794 | ** | ||
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Titta Heikkala
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r2845 | ** $QT_END_LICENSE$ | ||
| ** | ||||
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Miikka Heikkinen
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r2854 | ****************************************************************************/ | ||
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Jani Honkonen
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r794 | |||
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Titta Heikkala
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r2714 | #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> | ||||
Titta Heikkala
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r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
Michal Klocek
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r21 | |||
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Michal Klocek
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r331 | /*! | ||
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Michal Klocek
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r350 | \class QLineSeries | ||
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Titta Heikkala
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r2639 | \inmodule Qt Charts | ||
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Michal Klocek
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r350 | \brief The QLineSeries class is used for making line charts. | ||
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Michal Klocek
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r331 | |||
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Jani Honkonen
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r2097 | A line chart is used to show information as a series of data points | ||
| connected by straight lines. | ||||
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Michal Klocek
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r331 | |||
Tero Ahola
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r995 | \image examples_linechart.png | ||
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Michal Klocek
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r331 | |||
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Jani Honkonen
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r2097 | Creating basic line chart is simple: | ||
| \code | ||||
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Tero Ahola
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r995 | QLineSeries* series = new QLineSeries(); | ||
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Jani Honkonen
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r796 | series->append(0, 6); | ||
| series->append(2, 4); | ||||
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Tero Ahola
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r995 | ... | ||
| chart->addSeries(series); | ||||
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Michal Klocek
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r369 | \endcode | ||
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Michal Klocek
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r331 | */ | ||
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Titta Heikkala
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r2639 | /*! | ||
| \qmltype LineSeries | ||||
| \instantiates QLineSeries | ||||
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Titta Heikkala
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r2712 | \inqmlmodule QtCharts | ||
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Titta Heikkala
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r2639 | |||
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Titta Heikkala
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r2712 | \inherits XYSeries | ||
| \brief The LineSeries type is used for making line charts. | ||||
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Tero Ahola
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r1491 | |||
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Titta Heikkala
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r2712 | 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 | ||||
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Tero Ahola
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r1491 | */ | ||
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Michal Klocek
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r331 | |||
| /*! | ||||
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Michal Klocek
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r1107 | \fn virtual SeriesType QLineSeries::type() const | ||
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Michal Klocek
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r331 | \brief Returns type of series. | ||
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Michal Klocek
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r1107 | \sa QAbstractSeries, SeriesType | ||
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Michal Klocek
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r331 | */ | ||
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Tero Ahola
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r1904 | /*! | ||
| \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. | ||||
| */ | ||||
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Michal Klocek
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r374 | /*! | ||
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Michal Klocek
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r470 | Constructs empty series object which is a child of \a parent. | ||
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Michal Klocek
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r974 | When series object is added to QChartView or QChart instance ownerships is transferred. | ||
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Michal Klocek
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r331 | */ | ||
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Jani Honkonen
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r2097 | QLineSeries::QLineSeries(QObject *parent) | ||
| : QXYSeries(*new QLineSeriesPrivate(this), parent) | ||||
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Michal Klocek
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r938 | { | ||
| } | ||||
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Tero Ahola
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r973 | /*! | ||
| \internal | ||||
| */ | ||||
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Jani Honkonen
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r2097 | QLineSeries::QLineSeries(QLineSeriesPrivate &d, QObject *parent) | ||
| : QXYSeries(d, parent) | ||||
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Michal Klocek
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r470 | { | ||
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r331 | |||
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r470 | } | ||
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r392 | /*! | ||
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r470 | Destroys the object. Series added to QChartView or QChart instances are owned by those, | ||
| and are deleted when mentioned object are destroyed. | ||||
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r392 | */ | ||
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r470 | QLineSeries::~QLineSeries() | ||
| { | ||||
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r1069 | Q_D(QLineSeries); | ||
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Michal Klocek
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r2273 | if (d->m_chart) | ||
| d->m_chart->removeSeries(this); | ||||
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Michal Klocek
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r470 | } | ||
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Michal Klocek
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r392 | |||
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Michal Klocek
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r1107 | QAbstractSeries::SeriesType QLineSeries::type() const | ||
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Michal Klocek
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r21 | { | ||
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Tero Ahola
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r988 | return QAbstractSeries::SeriesTypeLine; | ||
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Michal Klocek
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r21 | } | ||
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Michal Klocek
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r938 | /* | ||
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Michal Klocek
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r349 | QDebug operator<< (QDebug debug, const QLineSeries series) | ||
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Michal Klocek
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r21 | { | ||
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Michal Klocek
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r938 | Q_ASSERT(series.d_func()->m_x.size() == series.d_func()->m_y.size()); | ||
| int size = series.d_func()->m_x.size(); | ||||
sauimone
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r743 | for (int i=0; i<size; i++) { | ||
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Michal Klocek
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r938 | debug.nospace() << "(" << series.d_func()->m_x.at(i) << ','<< series.d_func()->m_y.at(i) << ") "; | ||
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Michal Klocek
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r21 | } | ||
| return debug.space(); | ||||
| } | ||||
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Michal Klocek
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r938 | */ | ||
| //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | ||||
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Jani Honkonen
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r2104 | QLineSeriesPrivate::QLineSeriesPrivate(QLineSeries *q) | ||
| : QXYSeriesPrivate(q) | ||||
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Michal Klocek
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r938 | { | ||
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Miikka Heikkinen
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r2733 | } | ||
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Michal Klocek
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r21 | |||
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r2273 | void QLineSeriesPrivate::initializeGraphics(QGraphicsItem *parent) | ||
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r943 | { | ||
| Q_Q(QLineSeries); | ||||
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r2273 | 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(); | ||||
Miikka Heikkinen
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r2516 | if (forced || QChartPrivate::defaultPen() == m_pen) { | ||
| QPen pen; | ||||
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Michal Klocek
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r2273 | pen.setColor(colors.at(index % colors.size())); | ||
| pen.setWidthF(2); | ||||
| q->setPen(pen); | ||||
| } | ||||
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Titta Heikkala
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r2689 | |||
| if (forced || QChartPrivate::defaultPen().color() == m_pointLabelsColor) { | ||||
| QColor color = theme->labelBrush().color(); | ||||
| q->setPointLabelsColor(color); | ||||
| } | ||||
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Michal Klocek
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r943 | } | ||
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Tero Ahola
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r1276 | #include "moc_qlineseries.cpp" | ||
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Titta Heikkala
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r2712 | QT_CHARTS_END_NAMESPACE | ||