##// END OF EJS Templates
Fix crash when signals connected to deleted PieChartItem are emitted...
Fix crash when signals connected to deleted PieChartItem are emitted Disconnect all signals connected to the PieChartItem when it is destroyed. Reviewed-by: Mika Salmela

File last commit:

r2242:2523dbee7254
r2423:5eb5ce9ed083
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chartbackground.cpp
101 lines | 2.6 KiB | text/x-c | CppLexer
/ src / chartbackground.cpp
/****************************************************************************
**
** 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 "chartbackground_p.h"
#include "chartconfig_p.h"
#include <QPen>
#include <QBrush>
#include <QPainter>
#include <QGraphicsDropShadowEffect>
QTCOMMERCIALCHART_BEGIN_NAMESPACE
ChartBackground::ChartBackground(QGraphicsItem *parent)
: QGraphicsRectItem(parent),
m_diameter(15),
m_dropShadow(0)
{
}
ChartBackground::~ChartBackground()
{
}
void ChartBackground::setDropShadowEnabled(bool enabled)
{
if (enabled) {
if (!m_dropShadow) {
m_dropShadow = new QGraphicsDropShadowEffect();
#ifdef Q_OS_MAC
m_dropShadow->setBlurRadius(15);
m_dropShadow->setOffset(0, 0);
#elif defined(Q_OS_WIN)
m_dropShadow->setBlurRadius(10);
m_dropShadow->setOffset(0, 0);
#else
m_dropShadow->setBlurRadius(10);
m_dropShadow->setOffset(5, 5);
#endif
setGraphicsEffect(m_dropShadow);
}
} else {
delete m_dropShadow;
m_dropShadow = 0;
}
}
void ChartBackground::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
Q_UNUSED(option);
Q_UNUSED(widget);
painter->save();
painter->setPen(pen());
painter->setBrush(brush());
painter->drawRoundRect(rect(), roundness(rect().width()), roundness(rect().height()));
#ifndef QT_NO_DEBUG
painter->setPen(Qt::black);
QFont font;
QString build("build %1");
font.setPointSize(6);
painter->setFont(font);
painter->drawText(rect().bottomLeft(), build.arg(ChartConfig::instance()->compilationTime()));
#endif
painter->restore();
}
int ChartBackground::roundness(qreal size) const
{
if (qFuzzyCompare(size, 0))
return 0;
return 100 * m_diameter / int(size);
}
int ChartBackground::diameter() const
{
return m_diameter;
}
void ChartBackground::setDiameter(int diameter)
{
m_diameter = diameter;
}
QTCOMMERCIALCHART_END_NAMESPACE