1/****************************************************************************
2**
3** Copyright (C) 2016 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
5**
6** This file is part of the Qt Designer of the Qt Toolkit.
7**
8** $QT_BEGIN_LICENSE:GPL-EXCEPT$
9** Commercial License Usage
10** Licensees holding valid commercial Qt licenses may use this file in
11** accordance with the commercial license agreement provided with the
12** Software or, alternatively, in accordance with the terms contained in
13** a written agreement between you and The Qt Company. For licensing terms
14** and conditions see https://www.qt.io/terms-conditions. For further
15** information use the contact form at https://www.qt.io/contact-us.
16**
17** GNU General Public License Usage
18** Alternatively, this file may be used under the terms of the GNU
19** General Public License version 3 as published by the Free Software
20** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
21** included in the packaging of this file. Please review the following
22** information to ensure the GNU General Public License requirements will
23** be met: https://www.gnu.org/licenses/gpl-3.0.html.
24**
25** $QT_END_LICENSE$
26**
27****************************************************************************/
28
29#include "qdesigner.h"
30#include <QtCore/qlibraryinfo.h>
31#include <QtCore/qdir.h>
32
33#include <stdlib.h>
34
35QT_USE_NAMESPACE
36
37static bool isOptionSet(int argc, char *argv[], const char *option)
38{
39 for (int i = 1; i < argc; ++i) {
40 if (qstrcmp(str1: argv[i], str2: option) == 0)
41 return true;
42 }
43 return false;
44}
45
46int main(int argc, char *argv[])
47{
48 Q_INIT_RESOURCE(designer);
49
50 // Attributes to be set before QApplication is constructed.
51 if (isOptionSet(argc, argv, option: "--no-scaling")) {
52 QCoreApplication::setAttribute(attribute: Qt::AA_DisableHighDpiScaling);
53 } else {
54 QCoreApplication::setAttribute(attribute: Qt::AA_EnableHighDpiScaling);
55 QCoreApplication::setAttribute(attribute: Qt::AA_UseHighDpiPixmaps);
56 }
57
58 // required for QWebEngineView
59 QCoreApplication::setAttribute(attribute: Qt::AA_ShareOpenGLContexts);
60
61 QDesigner app(argc, argv);
62 switch (app.parseCommandLineArguments()) {
63 case QDesigner::ParseArgumentsSuccess:
64 break;
65 case QDesigner::ParseArgumentsError:
66 return 1;
67 case QDesigner::ParseArgumentsHelpRequested:
68 return 0;
69 }
70 QGuiApplication::setQuitOnLastWindowClosed(false);
71
72 return QApplication::exec();
73}
74

source code of qttools/src/designer/src/designer/main.cpp