| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
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| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "declarativepieseries_p.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); |
| } |
| |
| QT_CHARTS_END_NAMESPACE |
| |
| #include "moc_declarativepieseries_p.cpp" |