declarativepieseries.cpp
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r0 | /**************************************************************************** | ||
** | ||||
** 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 | ||||
** accordance with the commercial license agreement provided with the | ||||
** Software or, alternatively, in accordance with the terms contained in | ||||
** a written agreement between you and The Qt Company. For licensing terms | ||||
** and conditions see https://www.qt.io/terms-conditions. For further | ||||
** information use the contact form at https://www.qt.io/contact-us. | ||||
** | ||||
** 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 | ||||
** included in the packaging of this file. Please review the following | ||||
** information to ensure the GNU General Public License requirements will | ||||
** be met: https://www.gnu.org/licenses/gpl-3.0.html. | ||||
** | ||||
** $QT_END_LICENSE$ | ||||
** | ||||
****************************************************************************/ | ||||
#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 | ||||