##// END OF EJS Templates
Fixed area series paint bug caused by mouse event fix on line series
Fixed area series paint bug caused by mouse event fix on line series

File last commit:

r1792:ea0ec9902253
r1792:ea0ec9902253
Show More
areachartitem.cpp
151 lines | 4.0 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2012 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 Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial 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 "areachartitem_p.h"
#include "qareaseries.h"
#include "qareaseries_p.h"
#include "qlineseries.h"
#include "chartpresenter_p.h"
#include "domain_p.h"
#include <QPainter>
#include <QGraphicsSceneMouseEvent>
#include <QDebug>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
//TODO: optimize : remove points which are not visible
AreaChartItem::AreaChartItem(QAreaSeries *areaSeries, ChartPresenter *presenter)
: ChartItem(presenter),
m_series(areaSeries),
m_upper(0),
m_lower(0),
m_pointsVisible(false)
{
setZValue(ChartPresenter::LineChartZValue);
m_upper = new AreaBoundItem(this,m_series->upperSeries(),presenter);
if (m_series->lowerSeries()){
m_lower = new AreaBoundItem(this,m_series->lowerSeries(),presenter);
}
QObject::connect(m_series->d_func(),SIGNAL(updated()),this,SLOT(handleUpdated()));
QObject::connect(m_series, SIGNAL(visibleChanged()), this, SLOT(handleUpdated()));
QObject::connect(this,SIGNAL(clicked(QPointF)),areaSeries,SIGNAL(clicked(QPointF)));
handleUpdated();
}
AreaChartItem::~AreaChartItem()
{
delete m_upper;
delete m_lower;
}
QRectF AreaChartItem::boundingRect() const
{
return m_rect;
}
QPainterPath AreaChartItem::shape() const
{
return m_path;
}
void AreaChartItem::updatePath()
{
QPainterPath path;
path = m_upper->path();
if (m_lower) {
path.connectPath(m_lower->path().toReversed());
} else {
QPointF first = path.pointAtPercent(0);
QPointF last = path.pointAtPercent(1);
path.lineTo(last.x(),m_clipRect.bottom());
path.lineTo(first.x(),m_clipRect.bottom());
}
path.closeSubpath();
prepareGeometryChange();
m_path = path;
m_rect = path.boundingRect();
update();
}
void AreaChartItem::handleUpdated()
{
setVisible(m_series->isVisible());
m_pointsVisible = m_series->pointsVisible();
m_linePen = m_series->pen();
m_brush = m_series->brush();
m_pointPen = m_series->pen();
m_pointPen.setWidthF(2 * m_pointPen.width());
update();
}
void AreaChartItem::handleDomainUpdated()
{
m_upper->setDomain(domain());
m_upper->handleDomainUpdated();
if (m_lower){
m_lower->setDomain(domain());
m_lower->handleDomainUpdated();
}
}
void AreaChartItem::handleGeometryChanged(const QRectF &rect)
{
m_clipRect=rect.translated(-rect.topLeft());
setPos(rect.topLeft());
m_upper->handleGeometryChanged(rect);
if (m_lower)
m_lower->handleGeometryChanged(rect);
}
void AreaChartItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(widget)
Q_UNUSED(option)
painter->save();
painter->setPen(m_linePen);
painter->setBrush(m_brush);
painter->setClipRect(m_clipRect);
painter->drawPath(m_path);
if (m_pointsVisible) {
painter->setPen(m_pointPen);
painter->drawPoints(m_upper->geometryPoints());
if (m_lower)
painter->drawPoints(m_lower->geometryPoints());
}
painter->restore();
}
void AreaChartItem::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
emit clicked(m_upper->calculateDomainPoint(event->pos()));
ChartItem::mousePressEvent(event);
}
#include "moc_areachartitem_p.cpp"
QTCOMMERCIALCHART_END_NAMESPACE