declarativepieseries.cpp
163 lines
| 5.0 KiB
| text/x-c
|
CppLexer
|
r2854 | /**************************************************************************** | ||
|
r830 | ** | ||
|
r2854 | ** Copyright (C) 2016 The Qt Company Ltd. | ||
** Contact: https://www.qt.io/licensing/ | ||||
|
r830 | ** | ||
|
r2854 | ** This file is part of the Qt Charts module of the Qt Toolkit. | ||
|
r830 | ** | ||
|
r2854 | ** $QT_BEGIN_LICENSE:GPL$ | ||
|
r2845 | ** 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 | ||||
|
r2854 | ** 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. | ||||
|
r830 | ** | ||
|
r2845 | ** $QT_END_LICENSE$ | ||
** | ||||
|
r2854 | ****************************************************************************/ | ||
|
r830 | |||
|
r215 | #include "declarativepieseries.h" | ||
|
r2714 | #include <QtCharts/QPieSlice> | ||
#include <QtCharts/QVPieModelMapper> | ||||
#include <QtCharts/QHPieModelMapper> | ||||
|
r215 | |||
|
r2712 | QT_CHARTS_BEGIN_NAMESPACE | ||
|
r215 | |||
|
r2681 | 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 ========================================================================= | ||||
|
r2712 | DeclarativePieSeries::DeclarativePieSeries(QQuickItem *parent) : | ||
|
r1117 | QPieSeries(parent) | ||
|
r215 | { | ||
|
r1503 | connect(this, SIGNAL(added(QList<QPieSlice*>)), this, SLOT(handleAdded(QList<QPieSlice*>))); | ||
connect(this, SIGNAL(removed(QList<QPieSlice*>)), this, SLOT(handleRemoved(QList<QPieSlice*>))); | ||||
|
r215 | } | ||
|
r1186 | void DeclarativePieSeries::classBegin() | ||
{ | ||||
} | ||||
void DeclarativePieSeries::componentComplete() | ||||
{ | ||||
|
r2100 | foreach (QObject *child, children()) { | ||
|
r1329 | if (qobject_cast<QPieSlice *>(child)) { | ||
QPieSeries::append(qobject_cast<QPieSlice *>(child)); | ||||
|
r2101 | } else if (qobject_cast<QVPieModelMapper *>(child)) { | ||
|
r1254 | QVPieModelMapper *mapper = qobject_cast<QVPieModelMapper *>(child); | ||
mapper->setSeries(this); | ||||
|
r2101 | } else if (qobject_cast<QHPieModelMapper *>(child)) { | ||
|
r1254 | QHPieModelMapper *mapper = qobject_cast<QHPieModelMapper *>(child); | ||
mapper->setSeries(this); | ||||
|
r1186 | } | ||
} | ||||
} | ||||
|
r2712 | QQmlListProperty<QObject> DeclarativePieSeries::seriesChildren() | ||
|
r1254 | { | ||
|
r2712 | return QQmlListProperty<QObject>(this, 0, &DeclarativePieSeries::appendSeriesChildren ,0,0,0); | ||
|
r1254 | } | ||
|
r2712 | void DeclarativePieSeries::appendSeriesChildren(QQmlListProperty<QObject> * list, QObject *element) | ||
|
r1186 | { | ||
|
r1254 | // Empty implementation; the children are parsed in componentComplete instead | ||
Q_UNUSED(list); | ||||
Q_UNUSED(element); | ||||
|
r1186 | } | ||
|
r1329 | QPieSlice *DeclarativePieSeries::at(int index) | ||
|
r1162 | { | ||
|
r2101 | QList<QPieSlice *> sliceList = slices(); | ||
|
r1503 | if (index >= 0 && index < sliceList.count()) | ||
|
r1329 | return sliceList[index]; | ||
|
r1162 | |||
return 0; | ||||
} | ||||
|
r2101 | QPieSlice *DeclarativePieSeries::find(QString label) | ||
|
r1202 | { | ||
foreach (QPieSlice *slice, slices()) { | ||||
if (slice->label() == label) | ||||
|
r1329 | return slice; | ||
|
r1202 | } | ||
return 0; | ||||
} | ||||
|
r2681 | DeclarativePieSlice *DeclarativePieSeries::append(QString label, qreal value) | ||
|
r1189 | { | ||
|
r2681 | DeclarativePieSlice *slice = new DeclarativePieSlice(this); | ||
|
r1259 | slice->setLabel(label); | ||
slice->setValue(value); | ||||
|
r2681 | if (QPieSeries::append(slice)) | ||
return slice; | ||||
delete slice; | ||||
return 0; | ||||
|
r215 | } | ||
|
r1511 | bool DeclarativePieSeries::remove(QPieSlice *slice) | ||
|
r1503 | { | ||
|
r1511 | return QPieSeries::remove(slice); | ||
|
r1503 | } | ||
void DeclarativePieSeries::clear() | ||||
{ | ||||
QPieSeries::clear(); | ||||
} | ||||
|
r2101 | void DeclarativePieSeries::handleAdded(QList<QPieSlice *> slices) | ||
|
r1503 | { | ||
|
r2100 | foreach (QPieSlice *slice, slices) | ||
|
r1503 | emit sliceAdded(slice); | ||
} | ||||
|
r2101 | void DeclarativePieSeries::handleRemoved(QList<QPieSlice *> slices) | ||
|
r1503 | { | ||
|
r2100 | foreach (QPieSlice *slice, slices) | ||
|
r1503 | emit sliceRemoved(slice); | ||
} | ||||
|
r215 | #include "moc_declarativepieseries.cpp" | ||
|
r2712 | QT_CHARTS_END_NAMESPACE | ||