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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qdeclarativeinfo.h"
#include "private/qdeclarativedata_p.h"
#include "qdeclarativecontext.h"
#include "private/qdeclarativecontext_p.h"
#include "private/qdeclarativemetatype_p.h"
#include "private/qdeclarativeengine_p.h"
#include <QCoreApplication>
QT_BEGIN_NAMESPACE
/*!
\fn QDeclarativeInfo qmlInfo(const QObject *object)
\relates QDeclarativeEngine
Prints warning messages that include the file and line number for the
specified QML \a object.
When QML types display warning messages, it improves traceability
if they include the QML file and line number on which the
particular instance was instantiated.
To include the file and line number, an object must be passed. If
the file and line number is not available for that instance
(either it was not instantiated by the QML engine or location
information is disabled), "unknown location" will be used instead.
For example,
\code
qmlInfo(object) << tr("component property is a write-once property");
\endcode
prints
\code
QML MyCustomType (unknown location): component property is a write-once property
\endcode
*/
class QDeclarativeInfoPrivate
{
public:
QDeclarativeInfoPrivate() : ref (1), object(0) {}
int ref;
const QObject *object;
QString buffer;
QList<QDeclarativeError> errors;
};
QDeclarativeInfo::QDeclarativeInfo(QDeclarativeInfoPrivate *p)
: QDebug(&p->buffer), d(p)
{
nospace();
}
QDeclarativeInfo::QDeclarativeInfo(const QDeclarativeInfo &other)
: QDebug(other), d(other.d)
{
d->ref++;
}
QDeclarativeInfo::~QDeclarativeInfo()
{
if (0 == --d->ref) {
QList<QDeclarativeError> errors = d->errors;
QDeclarativeEngine *engine = 0;
if (!d->buffer.isEmpty()) {
QDeclarativeError error;
QObject *object = const_cast<QObject *>(d->object);
if (object) {
engine = qmlEngine(d->object);
QString typeName;
QDeclarativeType *type = QDeclarativeMetaType::qmlType(object->metaObject());
if (type) {
typeName = QLatin1String(type->qmlTypeName());
int lastSlash = typeName.lastIndexOf(QLatin1Char('/'));
if (lastSlash != -1)
typeName = typeName.mid(lastSlash+1);
} else {
typeName = QString::fromUtf8(object->metaObject()->className());
int marker = typeName.indexOf(QLatin1String("_QMLTYPE_"));
if (marker != -1)
typeName = typeName.left(marker);
}
d->buffer.prepend(QLatin1String("QML ") + typeName + QLatin1String(": "));
QDeclarativeData *ddata = QDeclarativeData::get(object, false);
if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty()) {
error.setUrl(ddata->outerContext->url);
error.setLine(ddata->lineNumber);
error.setColumn(ddata->columnNumber);
}
}
error.setDescription(d->buffer);
errors.prepend(error);
}
QDeclarativeEnginePrivate::warning(engine, errors);
delete d;
}
}
QDeclarativeInfo qmlInfo(const QObject *me)
{
QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
d->object = me;
return QDeclarativeInfo(d);
}
QDeclarativeInfo qmlInfo(const QObject *me, const QDeclarativeError &error)
{
QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
d->object = me;
d->errors << error;
return QDeclarativeInfo(d);
}
QDeclarativeInfo qmlInfo(const QObject *me, const QList<QDeclarativeError> &errors)
{
QDeclarativeInfoPrivate *d = new QDeclarativeInfoPrivate;
d->object = me;
d->errors = errors;
return QDeclarativeInfo(d);
}
QT_END_NAMESPACE
|