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/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.digia.com
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**
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** This file is part of the Qt Commercial Charts Add-on.
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**
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** $QT_BEGIN_LICENSE$
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt 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 Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.digia.com
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "legendmarker_p.h"
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#include "qxyseries.h"
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#include "qxyseries_p.h"
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#include "qlegend.h"
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#include "qabstractbarseries.h"
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#include "qpieseries.h"
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#include "qpieslice.h"
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#include "qbarset.h"
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#include "qbarset_p.h"
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#include "qareaseries.h"
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#include "qareaseries_p.h"
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#include <QPainter>
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#include <QGraphicsSceneEvent>
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#include <QGraphicsSimpleTextItem>
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#include <QGraphicsLayout>
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QTCOMMERCIALCHART_BEGIN_NAMESPACE
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LegendMarker::LegendMarker(QAbstractSeries *series, QLegend *legend) :
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QGraphicsObject(legend),
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m_series(series),
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m_markerRect(0, 0, 10.0, 10.0),
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m_boundingRect(0, 0, 0, 0),
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m_legend(legend),
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m_textItem(new QGraphicsSimpleTextItem(this)),
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m_rectItem(new QGraphicsRectItem(this)),
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m_margin(4),
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m_space(4)
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{
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//setAcceptedMouseButtons(Qt::LeftButton|Qt::RightButton);
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m_rectItem->setRect(m_markerRect);
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}
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void LegendMarker::setPen(const QPen &pen)
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{
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m_rectItem->setPen(pen);
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}
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QPen LegendMarker::pen() const
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{
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return m_rectItem->pen();
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}
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void LegendMarker::setBrush(const QBrush &brush)
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{
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m_rectItem->setBrush(brush);
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}
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QBrush LegendMarker::brush() const
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{
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return m_rectItem->brush();
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}
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void LegendMarker::setFont(const QFont &font)
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{
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m_textItem->setFont(font);
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QFontMetrics fn(font);
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m_markerRect = QRectF(0, 0, fn.height() / 2, fn.height() / 2);
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updateGeometry();
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m_legend->layout()->invalidate();
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}
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QFont LegendMarker::font() const
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{
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return m_textItem->font();
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}
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void LegendMarker::setLabel(const QString label)
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{
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m_text = label;
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updateGeometry();
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m_legend->layout()->invalidate();
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}
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QString LegendMarker::label() const
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{
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return m_text;
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}
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QRectF LegendMarker::boundingRect() const
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{
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return m_boundingRect;
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}
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void LegendMarker::setLabelBrush(const QBrush &brush)
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{
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m_textItem->setBrush(brush);
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}
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QBrush LegendMarker::labelBrush() const
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{
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return m_textItem->brush();
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}
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void LegendMarker::setGeometry(const QRectF &rect)
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{
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QFontMetrics fn(font());
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int width = rect.width();
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qreal x = m_margin + m_markerRect.width() + m_space + m_margin;
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qreal y = qMax(m_markerRect.height() + 2 * m_margin, fn.height() + 2 * m_margin);
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if (fn.boundingRect(m_text).width() + x > width) {
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QString string = m_text + "...";
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while (fn.boundingRect(string).width() + x > width && string.length() > 3)
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string.remove(string.length() - 4, 1);
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m_textItem->setText(string);
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} else {
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m_textItem->setText(m_text);
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}
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const QRectF &textRect = m_textItem->boundingRect();
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m_textItem->setPos(x - m_margin, y / 2 - textRect.height() / 2);
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m_rectItem->setRect(m_markerRect);
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m_rectItem->setPos(m_margin, y / 2 - m_markerRect.height() / 2);
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prepareGeometryChange();
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m_boundingRect = QRectF(0, 0, x + textRect.width() + m_margin, y);
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}
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void LegendMarker::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
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{
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Q_UNUSED(option)
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Q_UNUSED(widget)
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Q_UNUSED(painter)
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}
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QSizeF LegendMarker::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
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{
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Q_UNUSED(constraint)
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QFontMetrics fn(m_textItem->font());
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QSizeF sh;
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switch (which) {
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case Qt::MinimumSize:
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sh = QSizeF(fn.boundingRect("...").width() + 2 * m_margin + m_space + m_markerRect.width(), qMax(m_markerRect.height() + 2 * m_margin, fn.height() + 2 * m_margin));
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break;
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case Qt::PreferredSize:
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sh = QSizeF(fn.boundingRect(m_text).width() + 2 * m_margin + m_space + m_markerRect.width(), qMax(m_markerRect.height() + 2 * m_margin, fn.height() + 2 * m_margin));
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break;
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default:
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break;
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}
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return sh;
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}
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void LegendMarker::mousePressEvent(QGraphicsSceneMouseEvent *event)
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{
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QGraphicsObject::mousePressEvent(event);
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//TODO: selected signal removed for now
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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AreaLegendMarker::AreaLegendMarker(QAreaSeries *series, QLegend *legend)
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: LegendMarker(series, legend),
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m_series(series)
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{
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//QObject::connect(this, SIGNAL(selected()), series, SIGNAL(selected()));
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QObject::connect(series->d_func(), SIGNAL(updated()), this, SLOT(updated()));
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QObject::connect(series, SIGNAL(nameChanged()), this, SLOT(updated()));
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updated();
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}
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void AreaLegendMarker::updated()
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{
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setBrush(m_series->brush());
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setLabel(m_series->name());
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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BarLegendMarker::BarLegendMarker(QAbstractBarSeries *barseries, QBarSet *barset, QLegend *legend)
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: LegendMarker(barseries, legend),
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m_barset(barset)
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{
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//QObject::connect(this, SIGNAL(selected()),barset->d_ptr.data(), SIGNAL(selected()));
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QObject::connect(barset->d_ptr.data(), SIGNAL(updatedBars()), this, SLOT(updated()));
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QObject::connect(barset, SIGNAL(labelChanged()), this, SLOT(updated()));
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updated();
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}
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void BarLegendMarker::updated()
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{
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setBrush(m_barset->brush());
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setLabel(m_barset->label());
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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PieLegendMarker::PieLegendMarker(QPieSeries *series, QPieSlice *pieslice, QLegend *legend)
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: LegendMarker(series, legend),
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m_pieslice(pieslice)
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{
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QObject::connect(pieslice, SIGNAL(labelChanged()), this, SLOT(updated()));
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QObject::connect(pieslice, SIGNAL(brushChanged()), this, SLOT(updated()));
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updated();
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}
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void PieLegendMarker::updated()
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{
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setBrush(m_pieslice->brush());
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setLabel(m_pieslice->label());
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}
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//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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XYLegendMarker::XYLegendMarker(QXYSeries *series, QLegend *legend)
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: LegendMarker(series, legend),
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m_series(series)
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{
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//QObject::connect(this, SIGNAL(selected()), series, SIGNAL(selected()));
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QObject::connect(series->d_func(), SIGNAL(updated()), this, SLOT(updated()));
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QObject::connect(series, SIGNAL(nameChanged()), this, SLOT(updated()));
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updated();
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}
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void XYLegendMarker::updated()
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{
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setLabel(m_series->name());
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if (m_series->type() == QAbstractSeries::SeriesTypeScatter)
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setBrush(m_series->brush());
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else
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setBrush(QBrush(m_series->pen().color()));
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}
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#include "moc_legendmarker_p.cpp"
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QTCOMMERCIALCHART_END_NAMESPACE
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