|
|
/****************************************************************************
|
|
|
**
|
|
|
** Copyright (C) 2014 Digia Plc
|
|
|
** All rights reserved.
|
|
|
** For any questions to Digia, please use contact form at http://qt.digia.com
|
|
|
**
|
|
|
** This file is part of the Qt Enterprise Charts Add-on.
|
|
|
**
|
|
|
** $QT_BEGIN_LICENSE$
|
|
|
** Licensees holding valid Qt Enterprise licenses may use this file in
|
|
|
** accordance with the Qt Enterprise License Agreement provided with the
|
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
|
** a written agreement between you and Digia.
|
|
|
**
|
|
|
** If you have questions regarding the use of this file, please use
|
|
|
** contact form at http://qt.digia.com
|
|
|
** $QT_END_LICENSE$
|
|
|
**
|
|
|
****************************************************************************/
|
|
|
|
|
|
#include <QPainter>
|
|
|
#include <QGraphicsSceneEvent>
|
|
|
#include <QGraphicsTextItem>
|
|
|
#include <QTextDocument>
|
|
|
|
|
|
#include "qlegend.h"
|
|
|
#include "qlegend_p.h"
|
|
|
#include "qlegendmarker.h"
|
|
|
#include "qlegendmarker_p.h"
|
|
|
#include "legendmarkeritem_p.h"
|
|
|
#include "chartpresenter_p.h"
|
|
|
|
|
|
QTCOMMERCIALCHART_BEGIN_NAMESPACE
|
|
|
|
|
|
LegendMarkerItem::LegendMarkerItem(QLegendMarkerPrivate *marker, QGraphicsObject *parent) :
|
|
|
QGraphicsObject(parent),
|
|
|
m_marker(marker),
|
|
|
m_markerRect(0,0,10.0,10.0),
|
|
|
m_boundingRect(0,0,0,0),
|
|
|
m_textItem(new QGraphicsTextItem(this)),
|
|
|
m_rectItem(new QGraphicsRectItem(this)),
|
|
|
m_margin(3),
|
|
|
m_space(4),
|
|
|
m_hovering(false),
|
|
|
m_pressPos(0, 0)
|
|
|
{
|
|
|
m_rectItem->setRect(m_markerRect);
|
|
|
m_textItem->document()->setDocumentMargin(ChartPresenter::textMargin());
|
|
|
setAcceptHoverEvents(true);
|
|
|
}
|
|
|
|
|
|
LegendMarkerItem::~LegendMarkerItem()
|
|
|
{
|
|
|
if (m_hovering) {
|
|
|
emit m_marker->q_ptr->hovered(false);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::setPen(const QPen &pen)
|
|
|
{
|
|
|
m_rectItem->setPen(pen);
|
|
|
}
|
|
|
|
|
|
QPen LegendMarkerItem::pen() const
|
|
|
{
|
|
|
return m_rectItem->pen();
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::setBrush(const QBrush &brush)
|
|
|
{
|
|
|
m_rectItem->setBrush(brush);
|
|
|
}
|
|
|
|
|
|
QBrush LegendMarkerItem::brush() const
|
|
|
{
|
|
|
return m_rectItem->brush();
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::setFont(const QFont &font)
|
|
|
{
|
|
|
m_textItem->setFont(font);
|
|
|
QFontMetrics fn(font);
|
|
|
m_markerRect = QRectF(0,0,fn.height()/2,fn.height()/2);
|
|
|
updateGeometry();
|
|
|
}
|
|
|
|
|
|
QFont LegendMarkerItem::font() const
|
|
|
{
|
|
|
return m_textItem->font();
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::setLabel(const QString label)
|
|
|
{
|
|
|
m_label = label;
|
|
|
updateGeometry();
|
|
|
}
|
|
|
|
|
|
QString LegendMarkerItem::label() const
|
|
|
{
|
|
|
return m_label;
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::setLabelBrush(const QBrush &brush)
|
|
|
{
|
|
|
m_textItem->setDefaultTextColor(brush.color());
|
|
|
}
|
|
|
|
|
|
QBrush LegendMarkerItem::labelBrush() const
|
|
|
{
|
|
|
return QBrush(m_textItem->defaultTextColor());
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::setGeometry(const QRectF &rect)
|
|
|
{
|
|
|
qreal width = rect.width();
|
|
|
qreal x = m_margin + m_markerRect.width() + m_space + m_margin;
|
|
|
QRectF truncatedRect;
|
|
|
|
|
|
m_textItem->setHtml(ChartPresenter::truncatedText(m_textItem->font(), m_label, qreal(0.0),
|
|
|
width - x, rect.height(), truncatedRect));
|
|
|
m_textItem->setTextWidth(truncatedRect.width());
|
|
|
|
|
|
qreal y = qMax(m_markerRect.height() + 2 * m_margin, truncatedRect.height() + 2 * m_margin);
|
|
|
|
|
|
const QRectF &textRect = m_textItem->boundingRect();
|
|
|
|
|
|
m_textItem->setPos(x - m_margin, y / 2 - textRect.height() / 2);
|
|
|
m_rectItem->setRect(m_markerRect);
|
|
|
// The textMargin adjustments to position are done to make default case rects less blurry with anti-aliasing
|
|
|
m_rectItem->setPos(m_margin - ChartPresenter::textMargin(), y / 2.0 - m_markerRect.height() / 2.0 + ChartPresenter::textMargin());
|
|
|
|
|
|
prepareGeometryChange();
|
|
|
m_boundingRect = QRectF(0, 0, x + textRect.width() + m_margin, y);
|
|
|
}
|
|
|
|
|
|
QRectF LegendMarkerItem::boundingRect() const
|
|
|
{
|
|
|
return m_boundingRect;
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
|
|
|
{
|
|
|
Q_UNUSED(option)
|
|
|
Q_UNUSED(widget)
|
|
|
Q_UNUSED(painter)
|
|
|
}
|
|
|
|
|
|
QSizeF LegendMarkerItem::sizeHint(Qt::SizeHint which, const QSizeF& constraint) const
|
|
|
{
|
|
|
Q_UNUSED(constraint)
|
|
|
|
|
|
QSizeF sh;
|
|
|
|
|
|
switch (which) {
|
|
|
case Qt::MinimumSize: {
|
|
|
QRectF labelRect = ChartPresenter::textBoundingRect(m_textItem->font(), "...");
|
|
|
sh = QSizeF(labelRect.width() + (2.0 * m_margin) + m_space + m_markerRect.width(),
|
|
|
qMax(m_markerRect.height(), labelRect.height()) + (2.0 * m_margin));
|
|
|
break;
|
|
|
}
|
|
|
case Qt::PreferredSize: {
|
|
|
QRectF labelRect = ChartPresenter::textBoundingRect(m_textItem->font(), m_label);
|
|
|
sh = QSizeF(labelRect.width() + (2.0 * m_margin) + m_space + m_markerRect.width(),
|
|
|
qMax(m_markerRect.height(), labelRect.height()) + (2.0 * m_margin));
|
|
|
break;
|
|
|
}
|
|
|
default:
|
|
|
break;
|
|
|
}
|
|
|
|
|
|
return sh;
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::hoverEnterEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
Q_UNUSED(event)
|
|
|
m_hovering = true;
|
|
|
emit m_marker->q_ptr->hovered(true);
|
|
|
}
|
|
|
|
|
|
void LegendMarkerItem::hoverLeaveEvent(QGraphicsSceneHoverEvent *event)
|
|
|
{
|
|
|
Q_UNUSED(event)
|
|
|
m_hovering = false;
|
|
|
emit m_marker->q_ptr->hovered(false);
|
|
|
}
|
|
|
|
|
|
|
|
|
#include "moc_legendmarkeritem_p.cpp"
|
|
|
|
|
|
QTCOMMERCIALCHART_END_NAMESPACE
|
|
|
|
