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
|
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QGuiApplication>
#include <QQmlEngine>
#include <QQmlContext>
#include <QQuickView>
#include <QDir>
#include <QSettings>
static QString backendIdKey = QStringLiteral("backendId");
class BackendHelperContext : public QObject
{
Q_OBJECT
Q_PROPERTY(QString exampleName READ exampleName CONSTANT)
Q_PROPERTY(QString backendId READ backendId WRITE setBackendId NOTIFY backendIdChanged)
QString _backendId;
QScopedPointer<QSettings> _settings;
static QString _exampleName;
public:
BackendHelperContext(QQuickView *parent)
: QObject(parent)
{
QString fileName = QStringLiteral("EnginioExamples.conf");
for (int i = 0; i < 4; ++i) {
if (QFile::exists(fileName))
break;
fileName = fileName.prepend("../");
}
QFileInfo settingsFile = QFileInfo(fileName);
_settings.reset(settingsFile.exists()
? new QSettings(settingsFile.absoluteFilePath(), QSettings::IniFormat)
: new QSettings("QtProject", "EnginioExamples"));
_settings->beginGroup(_exampleName);
_backendId = _settings->value(backendIdKey).toString();
}
~BackendHelperContext()
{
_settings->endGroup();
_settings->sync();
}
QString backendId() const { return _backendId; }
void setBackendId(const QString &backendId)
{
if (_backendId == backendId)
return;
_backendId = backendId;
_settings->setValue(backendIdKey, _backendId);
emit backendIdChanged();
}
QString exampleName() const { return _exampleName; }
signals:
void backendIdChanged();
};
QString BackendHelperContext::_exampleName = ENGINIO_SAMPLE_NAME;
int main(int argc, char* argv[])
{
QGuiApplication app(argc,argv);
QQuickView view;
const QString appPath = QCoreApplication::applicationDirPath();
// This allows starting the example without previously defining QML2_IMPORT_PATH.
QDir qmlImportDir(appPath);
#if defined (Q_OS_WIN)
qmlImportDir.cd("..");
#endif
qmlImportDir.cd("../../../qml");
view.engine()->addImportPath(qmlImportDir.canonicalPath());
QObject::connect(view.engine(), SIGNAL(quit()), &app, SLOT(quit()));
BackendHelperContext *backendContext = new BackendHelperContext(&view);
view.engine()->rootContext()->setContextProperty("enginioBackendContext", backendContext);
view.setSource(QUrl("qrc:///" ENGINIO_SAMPLE_NAME ".qml"));
view.setResizeMode(QQuickView::SizeRootObjectToView);
view.show();
return app.exec();
}
#include "main.moc"
|