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/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc
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** All rights reserved.
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** For any questions to Digia, please use contact form at http://qt.io
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**
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** This file is part of the Qt Charts module.
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**
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** Licensees holding valid commercial license for Qt may use this file in
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** accordance with the Qt License Agreement provided with the Software
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** or, alternatively, in accordance with the terms contained in a written
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** agreement between you and Digia.
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**
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** If you have questions regarding the use of this file, please use
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** contact form at http://qt.io
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**
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****************************************************************************/
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#include "declarativepieseries.h"
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#include <QtCharts/QPieSlice>
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#include <QtCharts/QVPieModelMapper>
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#include <QtCharts/QHPieModelMapper>
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QT_CHARTS_BEGIN_NAMESPACE
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DeclarativePieSlice::DeclarativePieSlice(QObject *parent)
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: QPieSlice(parent)
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{
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connect(this, SIGNAL(brushChanged()), this, SLOT(handleBrushChanged()));
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}
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QString DeclarativePieSlice::brushFilename() const
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{
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return m_brushFilename;
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}
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void DeclarativePieSlice::setBrushFilename(const QString &brushFilename)
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{
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QImage brushImage(brushFilename);
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if (QPieSlice::brush().textureImage() != brushImage) {
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QBrush brush = QPieSlice::brush();
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brush.setTextureImage(brushImage);
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QPieSlice::setBrush(brush);
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m_brushFilename = brushFilename;
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m_brushImage = brushImage;
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emit brushFilenameChanged(brushFilename);
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}
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}
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void DeclarativePieSlice::handleBrushChanged()
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{
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// If the texture image of the brush has changed along the brush
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// the brush file name needs to be cleared.
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if (!m_brushFilename.isEmpty() && QPieSlice::brush().textureImage() != m_brushImage) {
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m_brushFilename.clear();
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emit brushFilenameChanged(QString(""));
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}
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}
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// Declarative pie series =========================================================================
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DeclarativePieSeries::DeclarativePieSeries(QQuickItem *parent) :
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QPieSeries(parent)
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{
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connect(this, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleAdded(QList<QPieSlice*>)));
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connect(this, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleRemoved(QList<QPieSlice*>)));
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}
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void DeclarativePieSeries::classBegin()
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{
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}
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void DeclarativePieSeries::componentComplete()
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{
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foreach (QObject *child, children()) {
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if (qobject_cast<QPieSlice *>(child)) {
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QPieSeries::append(qobject_cast<QPieSlice *>(child));
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} else if (qobject_cast<QVPieModelMapper *>(child)) {
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QVPieModelMapper *mapper = qobject_cast<QVPieModelMapper *>(child);
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mapper->setSeries(this);
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} else if (qobject_cast<QHPieModelMapper *>(child)) {
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QHPieModelMapper *mapper = qobject_cast<QHPieModelMapper *>(child);
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mapper->setSeries(this);
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}
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}
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}
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QQmlListProperty<QObject> DeclarativePieSeries::seriesChildren()
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{
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return QQmlListProperty<QObject>(this, 0, &DeclarativePieSeries::appendSeriesChildren ,0,0,0);
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}
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void DeclarativePieSeries::appendSeriesChildren(QQmlListProperty<QObject> * list, QObject *element)
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{
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// Empty implementation; the children are parsed in componentComplete instead
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Q_UNUSED(list);
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Q_UNUSED(element);
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}
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QPieSlice *DeclarativePieSeries::at(int index)
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{
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QList<QPieSlice *> sliceList = slices();
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if (index >= 0 && index < sliceList.count())
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return sliceList[index];
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return 0;
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}
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QPieSlice *DeclarativePieSeries::find(QString label)
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{
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foreach (QPieSlice *slice, slices()) {
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if (slice->label() == label)
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return slice;
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}
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return 0;
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}
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DeclarativePieSlice *DeclarativePieSeries::append(QString label, qreal value)
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{
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DeclarativePieSlice *slice = new DeclarativePieSlice(this);
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slice->setLabel(label);
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slice->setValue(value);
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if (QPieSeries::append(slice))
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return slice;
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delete slice;
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return 0;
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}
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bool DeclarativePieSeries::remove(QPieSlice *slice)
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{
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return QPieSeries::remove(slice);
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}
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void DeclarativePieSeries::clear()
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{
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QPieSeries::clear();
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}
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void DeclarativePieSeries::handleAdded(QList<QPieSlice *> slices)
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{
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foreach (QPieSlice *slice, slices)
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emit sliceAdded(slice);
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}
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void DeclarativePieSeries::handleRemoved(QList<QPieSlice *> slices)
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{
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foreach (QPieSlice *slice, slices)
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emit sliceRemoved(slice);
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}
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#include "moc_declarativepieseries.cpp"
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QT_CHARTS_END_NAMESPACE
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