##// END OF EJS Templates
Fix crash with ScatterChartItem mouse events...
Fix crash with ScatterChartItem mouse events The ScatterChartItem should emit the clicked and hovered signal after the QGraphicsRectItem has handled the corresponding events. This is to avoid situations where the item has been changed due to the signal as it can lead to problems when handling the mouse event (like crashes due to deleted items). Task-number: QTRD-2296 Change-Id: Ibdffb158f8a73df6af7fe3868b2707053e8bf975 Reviewed-by: Miikka Heikkinen <miikka.heikkinen@digia.com>

File last commit:

r2681:8344a0102a72
r2684:0a14af81c23e
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declarativepieseries.cpp
154 lines | 4.5 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2013 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 "declarativepieseries.h"
#include "qpieslice.h"
#include "qvpiemodelmapper.h"
#include "qhpiemodelmapper.h"
QTCOMMERCIALCHART_BEGIN_NAMESPACE
DeclarativePieSlice::DeclarativePieSlice(QObject *parent)
: QPieSlice(parent)
{
connect(this, SIGNAL(brushChanged()), this, SLOT(handleBrushChanged()));
}
QString DeclarativePieSlice::brushFilename() const
{
return m_brushFilename;
}
void DeclarativePieSlice::setBrushFilename(const QString &brushFilename)
{
QImage brushImage(brushFilename);
if (QPieSlice::brush().textureImage() != brushImage) {
QBrush brush = QPieSlice::brush();
brush.setTextureImage(brushImage);
QPieSlice::setBrush(brush);
m_brushFilename = brushFilename;
m_brushImage = brushImage;
emit brushFilenameChanged(brushFilename);
}
}
void DeclarativePieSlice::handleBrushChanged()
{
// If the texture image of the brush has changed along the brush
// the brush file name needs to be cleared.
if (!m_brushFilename.isEmpty() && QPieSlice::brush().textureImage() != m_brushImage) {
m_brushFilename.clear();
emit brushFilenameChanged(QString(""));
}
}
// Declarative pie series =========================================================================
DeclarativePieSeries::DeclarativePieSeries(QDECLARATIVE_ITEM *parent) :
QPieSeries(parent)
{
connect(this, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleAdded(QList<QPieSlice*>)));
connect(this, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleRemoved(QList<QPieSlice*>)));
}
void DeclarativePieSeries::classBegin()
{
}
void DeclarativePieSeries::componentComplete()
{
foreach (QObject *child, children()) {
if (qobject_cast<QPieSlice *>(child)) {
QPieSeries::append(qobject_cast<QPieSlice *>(child));
} else if (qobject_cast<QVPieModelMapper *>(child)) {
QVPieModelMapper *mapper = qobject_cast<QVPieModelMapper *>(child);
mapper->setSeries(this);
} else if (qobject_cast<QHPieModelMapper *>(child)) {
QHPieModelMapper *mapper = qobject_cast<QHPieModelMapper *>(child);
mapper->setSeries(this);
}
}
}
QDECLARATIVE_LIST_PROPERTY<QObject> DeclarativePieSeries::seriesChildren()
{
return QDECLARATIVE_LIST_PROPERTY<QObject>(this, 0, &DeclarativePieSeries::appendSeriesChildren LIST_PROPERTY_PARAM_DEFAULTS);
}
void DeclarativePieSeries::appendSeriesChildren(QDECLARATIVE_LIST_PROPERTY<QObject> * list, QObject *element)
{
// Empty implementation; the children are parsed in componentComplete instead
Q_UNUSED(list);
Q_UNUSED(element);
}
QPieSlice *DeclarativePieSeries::at(int index)
{
QList<QPieSlice *> sliceList = slices();
if (index >= 0 && index < sliceList.count())
return sliceList[index];
return 0;
}
QPieSlice *DeclarativePieSeries::find(QString label)
{
foreach (QPieSlice *slice, slices()) {
if (slice->label() == label)
return slice;
}
return 0;
}
DeclarativePieSlice *DeclarativePieSeries::append(QString label, qreal value)
{
DeclarativePieSlice *slice = new DeclarativePieSlice(this);
slice->setLabel(label);
slice->setValue(value);
if (QPieSeries::append(slice))
return slice;
delete slice;
return 0;
}
bool DeclarativePieSeries::remove(QPieSlice *slice)
{
return QPieSeries::remove(slice);
}
void DeclarativePieSeries::clear()
{
QPieSeries::clear();
}
void DeclarativePieSeries::handleAdded(QList<QPieSlice *> slices)
{
foreach (QPieSlice *slice, slices)
emit sliceAdded(slice);
}
void DeclarativePieSeries::handleRemoved(QList<QPieSlice *> slices)
{
foreach (QPieSlice *slice, slices)
emit sliceRemoved(slice);
}
#include "moc_declarativepieseries.cpp"
QTCOMMERCIALCHART_END_NAMESPACE