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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt 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.io
**
****************************************************************************/
#include "declarativepieseries.h"
#include <QtCharts/QPieSlice>
#include <QtCharts/QVPieModelMapper>
#include <QtCharts/QHPieModelMapper>
QT_CHARTS_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(QQuickItem *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);
}
}
}
QQmlListProperty<QObject> DeclarativePieSeries::seriesChildren()
{
return QQmlListProperty<QObject>(this, 0, &DeclarativePieSeries::appendSeriesChildren ,0,0,0);
}
void DeclarativePieSeries::appendSeriesChildren(QQmlListProperty<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"
QT_CHARTS_END_NAMESPACE
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