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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the Qt Charts module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 or (at your option) any later version
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** approved by the KDE Free Qt Foundation. The licenses are as published by
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** the Free Software Foundation and appearing in the file LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCharts/QLegendMarker>
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#include <private/qlegendmarker_p.h>
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#include <private/legendmarkeritem_p.h>
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#include <QtCharts/QLegend>
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#include <private/qlegend_p.h>
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#include <private/legendlayout_p.h>
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#include <QtGui/QFontMetrics>
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#include <QtWidgets/QGraphicsSceneEvent>
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#include <QtCharts/QAbstractSeries>
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QT_CHARTS_BEGIN_NAMESPACE
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/*!
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\class QLegendMarker
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\inmodule Qt Charts
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\brief LegendMarker object.
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QLegendMarker is abstract object that can be used to access markers inside QLegend. Legend marker consists of two
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items: The colored box, which reflects the color of series and label, which is the name of series (or label of slice/barset
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in case of pie or bar series)
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The QLegendMarker is always related to one series.
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\image examples_percentbarchart_legend.png
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\sa QLegend
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*/
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/*!
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\enum QLegendMarker::LegendMarkerType
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The type of the legendmarker object.
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\value LegendMarkerTypeArea
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\value LegendMarkerTypeBar
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\value LegendMarkerTypePie
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\value LegendMarkerTypeXY
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\value LegendMarkerTypeBoxPlot
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*/
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/*!
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\fn virtual LegendMarkerType QLegendMarker::type() = 0;
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Returns the type of legendmarker. Type depends of the related series. LegendMarkerTypeXY is used for all QXYSeries derived
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classes.
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*/
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/*!
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\fn virtual QAbstractSeries* QLegendMarker::series() = 0;
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Returns pointer to series, which is related to this marker. Marker is always related to some series.
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*/
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/*!
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\fn void QLegendMarker::clicked();
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This signal is emitted, when marker is clicked with mouse.
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*/
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/*!
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\fn void QLegendMarker::hovered(bool status);
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This signal is emitted, when mouse is hovered over marker. \a status is true, when mouse enters the marker
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and false when it leaves the marker.
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*/
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/*!
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\fn void QLegendMarker::labelChanged()
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This signal is emitted when the label of the legend marker has changed.
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*/
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/*!
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\fn void QLegendMarker::labelBrushChanged()
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This signal is emitted when the label brush of the legend marker has changed.
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*/
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/*!
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\fn void QLegendMarker::fontChanged()
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This signal is emitted when the (label) font of the legend marker has changed.
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*/
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/*!
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\fn void QLegendMarker::penChanged()
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This signal is emitted when the pen of the legend marker has changed.
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*/
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/*!
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\fn void QLegendMarker::brushChanged()
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This signal is emitted when the brush of the legend marker has changed.
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*/
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/*!
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\fn void QLegendMarker::visibleChanged()
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This signal is emitted when the visibility of the legend marker has changed.
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*/
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/*!
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\property QLegendMarker::label
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Label of the marker. This is the text that is shown in legend.
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*/
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/*!
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\property QLegendMarker::labelBrush
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Brush of the label
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*/
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/*!
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\property QLegendMarker::font
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Font of the label
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*/
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/*!
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\property QLegendMarker::pen
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Pen of the marker. This is the outline of the colored square.
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*/
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/*!
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\property QLegendMarker::brush
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Brush of the marker. This is the inside of the colored square.
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*/
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/*!
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\property QLegendMarker::visible
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Visibility of the legend marker. Affects label and the colored square.
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*/
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/*!
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\internal
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*/
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QLegendMarker::QLegendMarker(QLegendMarkerPrivate &d, QObject *parent) :
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QObject(parent),
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d_ptr(&d)
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{
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d_ptr->m_item->setVisible(d_ptr->series()->isVisible());
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}
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/*!
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Destructor of marker
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*/
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QLegendMarker::~QLegendMarker()
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{
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}
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/*!
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Returns the label of the marker.
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*/
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QString QLegendMarker::label() const
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{
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return d_ptr->m_item->label();
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}
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/*!
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Sets the \a label of marker. Note that changing name of series will also change label of its marker.
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*/
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void QLegendMarker::setLabel(const QString &label)
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{
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if (label.isEmpty()) {
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d_ptr->m_customLabel = false;
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} else {
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d_ptr->m_customLabel = true;
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d_ptr->m_item->setLabel(label);
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}
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}
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/*!
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Returns the brush which is used to draw label.
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*/
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QBrush QLegendMarker::labelBrush() const
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{
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return d_ptr->m_item->labelBrush();
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}
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/*!
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Sets the \a brush of label
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*/
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void QLegendMarker::setLabelBrush(const QBrush &brush)
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{
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d_ptr->m_item->setLabelBrush(brush);
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}
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/*!
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Retuns the font of label
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*/
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QFont QLegendMarker::font() const
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{
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return d_ptr->m_item->font();
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}
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/*!
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Sets the \a font of label
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*/
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void QLegendMarker::setFont(const QFont &font)
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{
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d_ptr->m_item->setFont(font);
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}
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/*!
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Returns the pen of marker item
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*/
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QPen QLegendMarker::pen() const
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{
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return d_ptr->m_item->pen();
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}
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/*!
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Sets the \a pen of marker item
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*/
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void QLegendMarker::setPen(const QPen &pen)
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{
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if (pen == QPen(Qt::NoPen)) {
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d_ptr->m_customPen = false;
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} else {
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d_ptr->m_customPen = true;
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d_ptr->m_item->setPen(pen);
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}
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}
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/*!
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Returns the brush of marker item
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*/
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QBrush QLegendMarker::brush() const
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{
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return d_ptr->m_item->brush();
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}
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/*!
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Sets the \a brush of marker item. Note that changing color of the series also changes this.
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*/
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void QLegendMarker::setBrush(const QBrush &brush)
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{
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if (brush == QBrush(Qt::NoBrush)) {
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d_ptr->m_customBrush = false;
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} else {
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d_ptr->m_customBrush = true;
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d_ptr->m_item->setBrush(brush);
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}
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}
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/*!
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Returns visibility of the marker
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*/
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bool QLegendMarker::isVisible() const
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{
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return d_ptr->m_item->isVisible();
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}
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/*!
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Sets markers visibility to \a visible
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*/
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void QLegendMarker::setVisible(bool visible)
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{
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d_ptr->m_item->setVisible(visible);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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QLegendMarkerPrivate::QLegendMarkerPrivate(QLegendMarker *q, QLegend *legend) :
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m_legend(legend),
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m_customLabel(false),
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m_customBrush(false),
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m_customPen(false),
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q_ptr(q)
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{
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m_item = new LegendMarkerItem(this);
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}
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QLegendMarkerPrivate::~QLegendMarkerPrivate()
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{
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delete m_item;
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}
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void QLegendMarkerPrivate::invalidateLegend()
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{
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m_legend->d_ptr->m_layout->invalidate();
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}
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#include "moc_qlegendmarker.cpp"
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#include "moc_qlegendmarker_p.cpp"
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QT_CHARTS_END_NAMESPACE
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