blob: c8ab1511f226952249c524da26f415148110e67b (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
|
// SPDX-FileCopyrightText: 2021 Nheko Contributors
// SPDX-FileCopyrightText: 2022 Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later
#include "DelegateChooser.h"
#include "Logging.h"
// uses private API, which moved between versions
#include <QQmlEngine>
#include <QtGlobal>
QQmlComponent *
DelegateChoice::delegate() const
{
return delegate_;
}
void
DelegateChoice::setDelegate(QQmlComponent *delegate)
{
if (delegate != delegate_) {
delegate_ = delegate;
emit delegateChanged();
emit changed();
}
}
QVariant
DelegateChoice::roleValue() const
{
return roleValue_;
}
void
DelegateChoice::setRoleValue(const QVariant &value)
{
if (value != roleValue_) {
roleValue_ = value;
emit roleValueChanged();
emit changed();
}
}
QVariant
DelegateChooser::roleValue() const
{
return roleValue_;
}
void
DelegateChooser::setRoleValue(const QVariant &value)
{
if (value != roleValue_) {
roleValue_ = value;
if (isComponentComplete())
recalcChild();
emit roleValueChanged();
}
}
QQmlListProperty<DelegateChoice>
DelegateChooser::choices()
{
return QQmlListProperty<DelegateChoice>(this,
this,
&DelegateChooser::appendChoice,
&DelegateChooser::choiceCount,
&DelegateChooser::choice,
&DelegateChooser::clearChoices);
}
void
DelegateChooser::appendChoice(QQmlListProperty<DelegateChoice> *p, DelegateChoice *c)
{
DelegateChooser *dc = static_cast<DelegateChooser *>(p->object);
dc->choices_.append(c);
}
int
DelegateChooser::choiceCount(QQmlListProperty<DelegateChoice> *p)
{
return static_cast<DelegateChooser *>(p->object)->choices_.count();
}
DelegateChoice *
DelegateChooser::choice(QQmlListProperty<DelegateChoice> *p, int index)
{
return static_cast<DelegateChooser *>(p->object)->choices_.at(index);
}
void
DelegateChooser::clearChoices(QQmlListProperty<DelegateChoice> *p)
{
static_cast<DelegateChooser *>(p->object)->choices_.clear();
}
void
DelegateChooser::recalcChild()
{
for (const auto choice : qAsConst(choices_)) {
const auto &choiceValue = choice->roleValueRef();
if (choiceValue == roleValue_ || (!choiceValue.isValid() && !roleValue_.isValid())) {
if (child_) {
child_->setParentItem(nullptr);
child_ = nullptr;
}
choice->delegate()->create(incubator, QQmlEngine::contextForObject(this));
return;
}
}
}
void
DelegateChooser::componentComplete()
{
QQuickItem::componentComplete();
recalcChild();
}
void
DelegateChooser::DelegateIncubator::statusChanged(QQmlIncubator::Status status)
{
if (status == QQmlIncubator::Ready) {
chooser.child_ = qobject_cast<QQuickItem *>(object());
if (chooser.child_ == nullptr) {
nhlog::ui()->error("Delegate has to be derived of Item!");
return;
}
chooser.child_->setParentItem(&chooser);
QQmlEngine::setObjectOwnership(chooser.child_,
QQmlEngine::ObjectOwnership::JavaScriptOwnership);
emit chooser.childChanged();
} else if (status == QQmlIncubator::Error) {
auto errors_ = errors();
for (const auto &e : qAsConst(errors_))
nhlog::ui()->error("Error instantiating delegate: {}", e.toString().toStdString());
}
}
|
