examples/script/marshal/main.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
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    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include <QtCore>
       
    43 #include <QtScript>
       
    44 
       
    45 template <class Container>
       
    46 QScriptValue toScriptValue(QScriptEngine *eng, const Container &cont)
       
    47 {
       
    48     QScriptValue a = eng->newArray();
       
    49     typename Container::const_iterator begin = cont.begin();
       
    50     typename Container::const_iterator end = cont.end();
       
    51     typename Container::const_iterator it;
       
    52     for (it = begin; it != end; ++it)
       
    53         a.setProperty(quint32(it - begin), qScriptValueFromValue(eng, *it));
       
    54     return a;
       
    55 }
       
    56 
       
    57 template <class Container>
       
    58 void fromScriptValue(const QScriptValue &value, Container &cont)
       
    59 {
       
    60     quint32 len = value.property("length").toUInt32();
       
    61     for (quint32 i = 0; i < len; ++i) {
       
    62         QScriptValue item = value.property(i);
       
    63         typedef typename Container::value_type ContainerValue;
       
    64         cont.push_back(qscriptvalue_cast<ContainerValue>(item));
       
    65     }
       
    66 }
       
    67 
       
    68 typedef QVector<int> IntVector;
       
    69 typedef QVector<QString> StringVector;
       
    70 
       
    71 Q_DECLARE_METATYPE(IntVector)
       
    72 Q_DECLARE_METATYPE(StringVector)
       
    73 
       
    74 int main(int argc, char *argv[])
       
    75 {
       
    76     QCoreApplication app(argc, argv);
       
    77 
       
    78     QScriptEngine eng;
       
    79     // register our custom types
       
    80     qScriptRegisterMetaType<IntVector>(&eng, toScriptValue, fromScriptValue);
       
    81     qScriptRegisterMetaType<StringVector>(&eng, toScriptValue, fromScriptValue);
       
    82 
       
    83     QScriptValue val = eng.evaluate("[1, 4, 7, 11, 50, 3, 19, 60]");
       
    84 
       
    85     fprintf(stdout, "Script array: %s\n", qPrintable(val.toString()));
       
    86 
       
    87     IntVector iv = qscriptvalue_cast<IntVector>(val);
       
    88 
       
    89     fprintf(stdout, "qscriptvalue_cast to QVector<int>: ");
       
    90     for (int i = 0; i < iv.size(); ++i)
       
    91         fprintf(stdout, "%s%d", (i > 0) ? "," : "", iv.at(i));
       
    92     fprintf(stdout, "\n");
       
    93 
       
    94     val = eng.evaluate("[9, 'foo', 46.5, 'bar', 'Qt', 555, 'hello']");
       
    95 
       
    96     fprintf(stdout, "Script array: %s\n", qPrintable(val.toString()));
       
    97 
       
    98     StringVector sv = qscriptvalue_cast<StringVector>(val);
       
    99 
       
   100     fprintf(stdout, "qscriptvalue_cast to QVector<QString>: ");
       
   101     for (int i = 0; i < sv.size(); ++i)
       
   102         fprintf(stdout, "%s%s", (i > 0) ? "," : "", qPrintable(sv.at(i)));
       
   103     fprintf(stdout, "\n");
       
   104 
       
   105     return 0;
       
   106 }