1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
3
4#undef QT_NO_FOREACH // this file contains unported legacy Q_FOREACH uses
5
6#include "declarativepieseries_p.h"
7#include <QtCharts/QPieSlice>
8#include <QtCharts/QVPieModelMapper>
9#include <QtCharts/QHPieModelMapper>
10
11QT_BEGIN_NAMESPACE
12
13DeclarativePieSlice::DeclarativePieSlice(QObject *parent)
14 : QPieSlice(parent)
15{
16 connect(sender: this, SIGNAL(brushChanged()), receiver: this, SLOT(handleBrushChanged()));
17}
18
19QString DeclarativePieSlice::brushFilename() const
20{
21 return m_brushFilename;
22}
23
24void DeclarativePieSlice::setBrushFilename(const QString &brushFilename)
25{
26 QImage brushImage(brushFilename);
27 if (QPieSlice::brush().textureImage() != brushImage) {
28 QBrush brush = QPieSlice::brush();
29 brush.setTextureImage(brushImage);
30 QPieSlice::setBrush(brush);
31 m_brushFilename = brushFilename;
32 m_brushImage = brushImage;
33 emit brushFilenameChanged(brushFilename);
34 }
35}
36
37void DeclarativePieSlice::handleBrushChanged()
38{
39 // If the texture image of the brush has changed along the brush
40 // the brush file name needs to be cleared.
41 if (!m_brushFilename.isEmpty() && QPieSlice::brush().textureImage() != m_brushImage) {
42 m_brushFilename.clear();
43 emit brushFilenameChanged(brushFilename: QString());
44 }
45}
46
47// Declarative pie series =========================================================================
48DeclarativePieSeries::DeclarativePieSeries(QQuickItem *parent) :
49 QPieSeries(parent)
50{
51 connect(sender: this, SIGNAL(added(QList<QPieSlice*>)), receiver: this, SLOT(handleAdded(QList<QPieSlice*>)));
52 connect(sender: this, SIGNAL(removed(QList<QPieSlice*>)), receiver: this, SLOT(handleRemoved(QList<QPieSlice*>)));
53}
54
55void DeclarativePieSeries::classBegin()
56{
57}
58
59void DeclarativePieSeries::componentComplete()
60{
61 foreach (QObject *child, children()) {
62 if (qobject_cast<QPieSlice *>(object: child)) {
63 QPieSeries::append(slice: qobject_cast<QPieSlice *>(object: child));
64 } else if (qobject_cast<QVPieModelMapper *>(object: child)) {
65 QVPieModelMapper *mapper = qobject_cast<QVPieModelMapper *>(object: child);
66 mapper->setSeries(this);
67 } else if (qobject_cast<QHPieModelMapper *>(object: child)) {
68 QHPieModelMapper *mapper = qobject_cast<QHPieModelMapper *>(object: child);
69 mapper->setSeries(this);
70 }
71 }
72}
73
74QQmlListProperty<QObject> DeclarativePieSeries::seriesChildren()
75{
76 return QQmlListProperty<QObject>(this, 0, &DeclarativePieSeries::appendSeriesChildren ,0,0,0);
77}
78
79void DeclarativePieSeries::appendSeriesChildren(QQmlListProperty<QObject> * list, QObject *element)
80{
81 // Empty implementation; the children are parsed in componentComplete instead
82 Q_UNUSED(list);
83 Q_UNUSED(element);
84}
85
86QPieSlice *DeclarativePieSeries::at(int index)
87{
88 QList<QPieSlice *> sliceList = slices();
89 if (index >= 0 && index < sliceList.size())
90 return sliceList[index];
91
92 return 0;
93}
94
95QPieSlice *DeclarativePieSeries::find(QString label)
96{
97 foreach (QPieSlice *slice, slices()) {
98 if (slice->label() == label)
99 return slice;
100 }
101 return 0;
102}
103
104DeclarativePieSlice *DeclarativePieSeries::append(QString label, qreal value)
105{
106 DeclarativePieSlice *slice = new DeclarativePieSlice(this);
107 slice->setLabel(label);
108 slice->setValue(value);
109 if (QPieSeries::append(slice))
110 return slice;
111 delete slice;
112 return 0;
113}
114
115bool DeclarativePieSeries::remove(QPieSlice *slice)
116{
117 return QPieSeries::remove(slice);
118}
119
120void DeclarativePieSeries::clear()
121{
122 QPieSeries::clear();
123}
124
125void DeclarativePieSeries::handleAdded(const QList<QPieSlice *> &slices)
126{
127 for (auto *slice : slices)
128 emit sliceAdded(slice);
129}
130
131void DeclarativePieSeries::handleRemoved(const QList<QPieSlice *> &slices)
132{
133 for (auto *slice : slices)
134 emit sliceRemoved(slice);
135}
136
137QT_END_NAMESPACE
138
139#include "moc_declarativepieseries_p.cpp"
140

source code of qtcharts/src/chartsqml2/declarativepieseries.cpp