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3** Copyright (C) 2017 The Qt Company Ltd.
4** Contact: https://www.qt.io/licensing/
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6** This file is part of the examples of the Qt Toolkit.
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8** $QT_BEGIN_LICENSE:BSD$
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49****************************************************************************/
50
51#include <QApplication>
52#include <QUiLoader>
53#include <QtScript>
54#include <QWidget>
55#include <QFile>
56#include <QMainWindow>
57#include <QLineEdit>
58
59#ifndef QT_NO_SCRIPTTOOLS
60#include <QScriptEngineDebugger>
61#endif
62
63int main(int argc, char **argv)
64{
65 Q_INIT_RESOURCE(calculator);
66
67 QApplication app(argc, argv);
68//! [0a]
69 QScriptEngine engine;
70//! [0a]
71
72#if !defined(QT_NO_SCRIPTTOOLS)
73 QScriptEngineDebugger debugger;
74 debugger.attachTo(engine: &engine);
75 QMainWindow *debugWindow = debugger.standardWindow();
76 debugWindow->resize(w: 1024, h: 640);
77#endif
78
79//! [0b]
80 QString scriptFileName(":/calculator.js");
81 QFile scriptFile(scriptFileName);
82 scriptFile.open(flags: QIODevice::ReadOnly);
83 engine.evaluate(program: scriptFile.readAll(), fileName: scriptFileName);
84 scriptFile.close();
85//! [0b]
86
87//! [1]
88 QUiLoader loader;
89 QFile uiFile(":/calculator.ui");
90 uiFile.open(flags: QIODevice::ReadOnly);
91 QWidget *ui = loader.load(device: &uiFile);
92 uiFile.close();
93//! [1]
94
95//! [2]
96 QScriptValue ctor = engine.evaluate(program: "Calculator");
97 QScriptValue scriptUi = engine.newQObject(object: ui, ownership: QScriptEngine::ScriptOwnership);
98 QScriptValue calc = ctor.construct(args: QScriptValueList() << scriptUi);
99//! [2]
100
101#if !defined(QT_NO_SCRIPTTOOLS)
102 QLineEdit *display = ui->findChild<QLineEdit*>(aName: "display");
103 QObject::connect(sender: display, SIGNAL(returnPressed()),
104 receiver: debugWindow, SLOT(show()));
105#endif
106//! [3]
107 ui->show();
108 return app.exec();
109//! [3]
110}
111

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source code of qtscript/examples/script/calculator/main.cpp