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author | David Boddie <david.boddie@nokia.com> | 2011-02-08 14:45:11 (GMT) |
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committer | David Boddie <david.boddie@nokia.com> | 2011-02-08 14:45:11 (GMT) |
commit | e442cb8e772eeebbe66ebc89a4d6a429d12f86cb (patch) | |
tree | f706685c49bbdfb13eb3fa4ce3a95cf4d4e4b472 /doc/src/snippets/code/doc_src_qtscript.qdoc | |
parent | c39b3d42dda26b1f9576906cd001236c9d96e06a (diff) | |
download | Qt-e442cb8e772eeebbe66ebc89a4d6a429d12f86cb.zip Qt-e442cb8e772eeebbe66ebc89a4d6a429d12f86cb.tar.gz Qt-e442cb8e772eeebbe66ebc89a4d6a429d12f86cb.tar.bz2 |
Doc: Ensured that code snippets have appropriate file names.
This helps them to be marked up correctly in cases where code
markers are available.
Diffstat (limited to 'doc/src/snippets/code/doc_src_qtscript.qdoc')
-rw-r--r-- | doc/src/snippets/code/doc_src_qtscript.qdoc | 937 |
1 files changed, 0 insertions, 937 deletions
diff --git a/doc/src/snippets/code/doc_src_qtscript.qdoc b/doc/src/snippets/code/doc_src_qtscript.qdoc index a168d5b..b65311f 100644 --- a/doc/src/snippets/code/doc_src_qtscript.qdoc +++ b/doc/src/snippets/code/doc_src_qtscript.qdoc @@ -38,882 +38,6 @@ ** ****************************************************************************/ -//! [0] -#include <QtScript> -//! [0] - - -//! [1] -QT += script -//! [1] - - -//! [2] -function myInterestingScriptFunction() { ... } -... -myQObject.somethingChanged.connect(myInterestingScriptFunction); -//! [2] - - -//! [3] -myQObject.somethingChanged.connect(myOtherQObject.doSomething); -//! [3] - - -//! [4] -myQObject.somethingChanged.disconnect(myInterestingFunction); -myQObject.somethingChanged.disconnect(myOtherQObject.doSomething); -//! [4] - - -//! [5] -var obj = { x: 123 }; -var fun = function() { print(this.x); }; -myQObject.somethingChanged.connect(obj, fun); -//! [5] - - -//! [6] -myQObject.somethingChanged.disconnect(obj, fun); -//! [6] - - -//! [7] -var obj = { x: 123, fun: function() { print(this.x); } }; -myQObject.somethingChanged.connect(obj, "fun"); -//! [7] - - -//! [8] -myQObject.somethingChanged.disconnect(obj, "fun"); -//! [8] - - -//! [9] -try { - myQObject.somethingChanged.connect(myQObject, "slotThatDoesntExist"); -} catch (e) { - print(e); -} -//! [9] - - -//! [10] -myQObject.somethingChanged("hello"); -//! [10] - - -//! [11] -myQObject.myOverloadedSlot(10); // will call the int overload -myQObject.myOverloadedSlot("10"); // will call the QString overload -//! [11] - - -//! [12] -myQObject['myOverloadedSlot(int)']("10"); // call int overload; the argument is converted to an int -myQObject['myOverloadedSlot(QString)'](10); // call QString overload; the argument is converted to a string -//! [12] - - -//! [13] -Q_PROPERTY(bool enabled READ enabled WRITE setEnabled) -//! [13] - - -//! [14] -myQObject.enabled = true; - -... - -myQObject.enabled = !myQObject.enabled; -//! [14] - - -//! [15] -myDialog.okButton -//! [15] - - -//! [16] -myDialog.okButton.objectName = "cancelButton"; -// from now on, myDialog.cancelButton references the button -//! [16] - - -//! [17] -var okButton = myDialog.findChild("okButton"); -if (okButton != null) { - // do something with the OK button -} - -var buttons = myDialog.findChildren(RegExp("button[0-9]+")); -for (var i = 0; i < buttons.length; ++i) { - // do something with buttons[i] -} -//! [17] - - -//! [18] -QScriptValue myQObjectConstructor(QScriptContext *context, QScriptEngine *engine) -{ - // let the engine manage the new object's lifetime. - return engine->newQObject(new MyQObject(), QScriptEngine::ScriptOwnership); -} -//! [18] - - -//! [19] -class MyObject : public QObject -{ - Q_OBJECT - -public: - MyObject( ... ); - - void aNonScriptableFunction(); - -public slots: // these functions (slots) will be available in QtScript - void calculate( ... ); - void setEnabled( bool enabled ); - bool isEnabled() const; - -private: - .... - -}; -//! [19] - - -//! [20] -class MyObject : public QObject -{ - Q_OBJECT - - public: - Q_INVOKABLE void thisMethodIsInvokableInQtScript(); - void thisMethodIsNotInvokableInQtScript(); - - ... -}; -//! [20] - - -//! [21] -var obj = new MyObject; -obj.setEnabled( true ); -print( "obj is enabled: " + obj.isEnabled() ); -//! [21] - - -//! [22] -var obj = new MyObject; -obj.enabled = true; -print( "obj is enabled: " + obj.enabled ); -//! [22] - - -//! [23] -class MyObject : public QObject -{ - Q_OBJECT - // define the enabled property - Q_PROPERTY( bool enabled WRITE setEnabled READ isEnabled ) - -public: - MyObject( ... ); - - void aNonScriptableFunction(); - -public slots: // these functions (slots) will be available in QtScript - void calculate( ... ); - void setEnabled( bool enabled ); - bool isEnabled() const; - -private: - .... - -}; -//! [23] - - -//! [24] -Q_PROPERTY(int nonScriptableProperty READ foo WRITE bar SCRIPTABLE false) -//! [24] - - -//! [25] -class MyObject : public QObject -{ - Q_OBJECT - // define the enabled property - Q_PROPERTY( bool enabled WRITE setEnabled READ isEnabled ) - -public: - MyObject( ... ); - - void aNonScriptableFunction(); - -public slots: // these functions (slots) will be available in QtScript - void calculate( ... ); - void setEnabled( bool enabled ); - bool isEnabled() const; - -signals: // the signals - void enabledChanged( bool newState ); - -private: - .... - -}; -//! [25] - - -//! [26] -function enabledChangedHandler( b ) -{ - print( "state changed to: " + b ); -} - -function init() -{ - var obj = new MyObject(); - // connect a script function to the signal - obj["enabledChanged(bool)"].connect(enabledChangedHandler); - obj.enabled = true; - print( "obj is enabled: " + obj.enabled ); -} -//! [26] - - -//! [27] -var o = new Object(); -o.foo = 123; -print(o.hasOwnProperty('foo')); // true -print(o.hasOwnProperty('bar')); // false -print(o); // calls o.toString(), which returns "[object Object]" -//! [27] - - -//! [28] -function Person(name) -{ - this.name = name; -} -//! [28] - - -//! [29] -Person.prototype.toString = function() { return "Person(name: " + this.name + ")"; } -//! [29] - - -//! [30] -var p1 = new Person("John Doe"); -var p2 = new Person("G.I. Jane"); -print(p1); // "Person(name: John Doe)" -print(p2); // "Person(name: G.I. Jane)" -//! [30] - - -//! [31] -print(p1.hasOwnProperty('name')); // 'name' is an instance variable, so this returns true -print(p1.hasOwnProperty('toString')); // returns false; inherited from prototype -print(p1 instanceof Person); // true -print(p1 instanceof Object); // true -//! [31] - - -//! [32] -function Employee(name, salary) -{ - Person.call(this, name); // call base constructor - - this.salary = salary; -} - -// set the prototype to be an instance of the base class -Employee.prototype = new Person(); - -// initialize prototype -Employee.prototype.toString = function() { ... } -//! [32] - - -//! [33] -var e = new Employee("Johnny Bravo", 5000000); -print(e instanceof Employee); // true -print(e instanceof Person); // true -print(e instanceof Object); // true -print(e instanceof Array); // false -//! [33] - - -//! [34] -QScriptValue Person_ctor(QScriptContext *context, QScriptEngine *engine) -{ - QString name = context->argument(0).toString(); - context->thisObject().setProperty("name", name); - return engine->undefinedValue(); -} -//! [34] - - -//! [35] -QScriptValue Person_prototype_toString(QScriptContext *context, QScriptEngine *engine) -{ - QString name = context->thisObject().property("name").toString(); - QString result = QString::fromLatin1("Person(name: %0)").arg(name); - return result; -} -//! [35] - - -//! [36] -QScriptEngine engine; -QScriptValue ctor = engine.newFunction(Person_ctor); -ctor.property("prototype").setProperty("toString", engine.newFunction(Person_prototype_toString)); -QScriptValue global = engine.globalObject(); -global.setProperty("Person", ctor); -//! [36] - - -//! [37] -QScriptValue Employee_ctor(QScriptContext *context, QScriptEngine *engine) -{ - QScriptValue super = context->callee().property("prototype").property("constructor"); - super.call(context->thisObject(), QScriptValueList() << context->argument(0)); - context->thisObject().setProperty("salary", context->argument(1)); - return engine->undefinedValue(); -} -//! [37] - - -//! [38] -QScriptValue empCtor = engine.newFunction(Employee_ctor); -empCtor.setProperty("prototype", global.property("Person").construct()); -global.setProperty("Employee", empCtor); -//! [38] - - -//! [39] -Q_DECLARE_METATYPE(QPointF) -Q_DECLARE_METATYPE(QPointF*) - -QScriptValue QPointF_prototype_x(QScriptContext *context, QScriptEngine *engine) -{ - // Since the point is not to be modified, it's OK to cast to a value here - QPointF point = qscriptvalue_cast<QPointF>(context->thisObject()); - return point.x(); -} - -QScriptValue QPointF_prototype_setX(QScriptContext *context, QScriptEngine *engine) -{ - // Cast to a pointer to be able to modify the underlying C++ value - QPointF *point = qscriptvalue_cast<QPointF*>(context->thisObject()); - if (!point) - return context->throwError(QScriptContext::TypeError, "QPointF.prototype.setX: this object is not a QPointF"); - point->setX(context->argument(0).toNumber()); - return engine->undefinedValue(); -} -//! [39] - - -//! [40] -var o = new Object(); -(o.__proto__ === Object.prototype); // this evaluates to true -//! [40] - - -//! [41] -var o = new Object(); -o.__defineGetter__("x", function() { return 123; }); -var y = o.x; // 123 -//! [41] - - -//! [42] -var o = new Object(); -o.__defineSetter__("x", function(v) { print("and the value is:", v); }); -o.x = 123; // will print "and the value is: 123" -//! [42] - - -//! [43] -class MyObject : public QObject -{ - Q_OBJECT - ... -}; - -Q_DECLARE_METATYPE(MyObject*) - -QScriptValue myObjectToScriptValue(QScriptEngine *engine, MyObject* const &in) -{ return engine->newQObject(in); } - -void myObjectFromScriptValue(const QScriptValue &object, MyObject* &out) -{ out = qobject_cast<MyObject*>(object.toQObject()); } - -... - -qScriptRegisterMetaType(&engine, myObjectToScriptValue, myObjectFromScriptValue); -//! [43] - -//! [44] -QScriptValue QPoint_ctor(QScriptContext *context, QScriptEngine *engine) -{ - int x = context->argument(0).toInt32(); - int y = context->argument(1).toInt32(); - return engine->toScriptValue(QPoint(x, y)); -} - -... - -engine.globalObject().setProperty("QPoint", engine.newFunction(QPoint_ctor)); -//! [44] - -//! [45] -QScriptValue myPrintFunction(QScriptContext *context, QScriptEngine *engine) -{ - QString result; - for (int i = 0; i < context->argumentCount(); ++i) { - if (i > 0) - result.append(" "); - result.append(context->argument(i).toString()); - } - - QScriptValue calleeData = context->callee().data(); - QPlainTextEdit *edit = qobject_cast<QPlainTextEdit*>(calleeData.toQObject()); - edit->appendPlainText(result); - - return engine->undefinedValue(); -} -//! [45] - -//! [46] -int main(int argc, char **argv) -{ - QApplication app(argc, argv); - - QScriptEngine eng; - QPlainTextEdit edit; - - QScriptValue fun = eng.newFunction(myPrintFunction); - fun.setData(eng.newQObject(&edit)); - eng.globalObject().setProperty("print", fun); - - eng.evaluate("print('hello', 'world')"); - - edit.show(); - return app.exec(); -} -//! [46] - - -//! [47] -QScriptEngine eng; -QLineEdit *edit = new QLineEdit(...); -QScriptValue handler = eng.evaluate("(function(text) { print('text was changed to', text); })"); -qScriptConnect(edit, SIGNAL(textChanged(const QString &)), QScriptValue(), handler); -//! [47] - -//! [48] -QLineEdit *edit1 = new QLineEdit(...); -QLineEdit *edit2 = new QLineEdit(...); - -QScriptValue handler = eng.evaluate("(function() { print('I am', this.name); })"); -QScriptValue obj1 = eng.newObject(); -obj1.setProperty("name", "the walrus"); -QScriptValue obj2 = eng.newObject(); -obj2.setProperty("name", "Sam"); - -qScriptConnect(edit1, SIGNAL(returnPressed()), obj1, handler); -qScriptConnect(edit2, SIGNAL(returnPressed()), obj2, handler); -//! [48] - -//! [49] -var getProperty = function(name) { return this[name]; }; - -name = "Global Object"; // creates a global variable -print(getProperty("name")); // "Global Object" - -var myObject = { name: 'My Object' }; -print(getProperty.call(myObject, "name")); // "My Object" - -myObject.getProperty = getProperty; -print(myObject.getProperty("name")); // "My Object" - -getProperty.name = "The getProperty() function"; -getProperty.getProperty = getProperty; -getProperty.getProperty("name"); // "The getProperty() function" -//! [49] - -//! [50] -var o = { a: 1, b: 2, sum: function() { return a + b; } }; -print(o.sum()); // reference error, or sum of global variables a and b!! -//! [50] - -//! [51] -var o = { a: 1, b: 2, sum: function() { return this.a + this.b; } }; -print(o.sum()); // 3 -//! [51] - -//! [52] -QScriptValue getProperty(QScriptContext *ctx, QScriptEngine *eng) -{ - QString name = ctx->argument(0).toString(); - return ctx->thisObject().property(name); -} -//! [52] - -//! [53] -QScriptValue myCompare(QScriptContext *ctx, QScriptEngine *eng) -{ - double first = ctx->argument(0).toNumber(); - double second = ctx->argument(1).toNumber(); - int result; - if (first == second) - result = 0; - else if (first < second) - result = -1; - else - result = 1; - return result; -} -//! [53] - -//! [54] -QScriptEngine eng; -QScriptValue comparefn = eng.newFunction(myCompare); -QScriptValue array = eng.evaluate("new Array(10, 5, 20, 15, 30)"); -array.property("sort").call(array, QScriptValueList() << comparefn); - -// prints "5,10,15,20,30" -qDebug() << array.toString(); -//! [54] - -//! [55] -QScriptValue rectifier(QScriptContext *ctx, QScriptEngine *eng) -{ - QRectF magicRect = qscriptvalue_cast<QRectF>(ctx->callee().data()); - QRectF sourceRect = qscriptvalue_cast<QRectF>(ctx->argument(0)); - return eng->toScriptValue(sourceRect.intersected(magicRect)); -} - -... - -QScriptValue fun = eng.newFunction(rectifier); -QRectF magicRect = QRectF(10, 20, 30, 40); -fun.setData(eng.toScriptValue(magicRect)); -eng.globalObject().setProperty("rectifier", fun); -//! [55] - -//! [56] -function add(a, b) { - return a + b; -} -//! [56] - -//! [57] -function add() { - return arguments[0] + arguments[1]; -} -//! [57] - -//! [58] -QScriptValue add(QScriptContext *ctx, QScriptEngine *eng) -{ - double a = ctx->argument(0).toNumber(); - double b = ctx->argument(1).toNumber(); - return a + b; -} -//! [58] - -//! [59] -function add() { - if (arguments.length != 2) - throw Error("add() takes exactly two arguments"); - return arguments[0] + arguments[1]; -} -//! [59] - -//! [60] -function add() { - if (arguments.length != 2) - throw Error("add() takes exactly two arguments"); - if (typeof arguments[0] != "number") - throw TypeError("add(): first argument is not a number"); - if (typeof arguments[1] != "number") - throw TypeError("add(): second argument is not a number"); - return arguments[0] + arguments[1]; -} -//! [60] - -//! [61] -function add() { - if (arguments.length != 2) - throw Error("add() takes exactly two arguments"); - return Number(arguments[0]) + Number(arguments[1]); -} -//! [61] - -//! [62] -QScriptValue add(QScriptContext *ctx, QScriptEngine *eng) -{ - if (ctx->argumentCount() != 2) - return ctx->throwError("add() takes exactly two arguments"); - double a = ctx->argument(0).toNumber(); - double b = ctx->argument(1).toNumber(); - return a + b; -} -//! [62] - -//! [63] -QScriptValue add(QScriptContext *ctx, QScriptEngine *eng) -{ - if (ctx->argumentCount() != 2) - return ctx->throwError("add() takes exactly two arguments"); - if (!ctx->argument(0).isNumber()) - return ctx->throwError(QScriptContext::TypeError, "add(): first argument is not a number"); - if (!ctx->argument(1).isNumber()) - return ctx->throwError(QScriptContext::TypeError, "add(): second argument is not a number"); - double a = ctx->argument(0).toNumber(); - double b = ctx->argument(1).toNumber(); - return a + b; -} -//! [63] - -//! [64] -function concat() { - var result = ""; - for (var i = 0; i < arguments.length; ++i) - result += String(arguments[i]); - return result; -} -//! [64] - -//! [65] -QScriptValue concat(QScriptContext *ctx, QScriptEngine *eng) -{ - QString result = ""; - for (int i = 0; i < ctx->argumentCount(); ++i) - result += ctx->argument(i).toString(); - return result; -} -//! [65] - -//! [66] -function sort(comparefn) { - if (comparefn == undefined) - comparefn = /* the built-in comparison function */; - else if (typeof comparefn != "function") - throw TypeError("sort(): argument must be a function"); - ... -} -//! [66] - -//! [67] -QScriptValue sort(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue comparefn = ctx->argument(0); - if (comparefn.isUndefined()) - comparefn = /* the built-in comparison function */; - else if (!comparefn.isFunction()) - return ctx->throwError(QScriptContext::TypeError, "sort(): argument is not a function"); - ... -} -//! [67] - -//! [68] -function foo() { - // Let bar() take care of this. - print("calling bar() with " + arguments.length + "arguments"); - var result = return bar.apply(this, arguments); - print("bar() returned" + result); - return result; -} -//! [68] - -//! [69] -QScriptValue foo(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue bar = eng->globalObject().property("bar"); - QScriptValue arguments = ctx->argumentsObject(); - qDebug() << "calling bar() with" << arguments.property("length").toInt32() << "arguments"; - QScriptValue result = bar.apply(ctx->thisObject(), arguments); - qDebug() << "bar() returned" << result.toString(); - return result; -} -//! [69] - -//! [70] -function counter() { - var count = 0; - return function() { - return count++; - } -} -//! [70] - -//! [71] -var c1 = counter(); // create a new counter function -var c2 = counter(); // create a new counter function -print(c1()); // 0 -print(c1()); // 1 -print(c2()); // 0 -print(c2()); // 1 -//! [71] - -//! [72] -QScriptValue counter(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue act = ctx->activationObject(); - act.setProperty("count", 0); - QScriptValue result = eng->newFunction(counter_inner); - result.setScope(act); - return result; -} -//! [72] - -//! [73] -QScriptValue counter_inner(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue outerAct = ctx->callee().scope(); - double count = outerAct.property("count").toNumber(); - outerAct.setProperty("count", count+1); - return count; -} -//! [73] - -//! [74] -QScriptValue counter_hybrid(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue act = ctx->activationObject(); - act.setProperty("count", 0); - return eng->evaluate("(function() { return count++; })"); -} -//! [74] - -//! [75] -function Book(isbn) { - this.isbn = isbn; -} - -var coolBook1 = new Book("978-0131872493"); -var coolBook2 = new Book("978-1593271473"); -//! [75] - -//! [76] -QScriptValue Person_ctor(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue object; - if (ctx->isCalledAsConstructor()) { - object = ctx->thisObject(); - } else { - object = eng->newObject(); - object.setPrototype(ctx->callee().property("prototype")); - } - object.setProperty("name", ctx->argument(0)); - return object; -} -//! [76] - -//! [77] -QScriptContext *ctx = eng.pushContext(); -QScriptValue act = ctx->activationObject(); -act.setProperty("digit", 7); - -qDebug() << eng.evaluate("digit + 1").toNumber(); // 8 - -eng.popContext(); -//! [77] - -//! [78] -QScriptValue getSet(QScriptContext *ctx, QScriptEngine *eng) -{ - QScriptValue obj = ctx->thisObject(); - QScriptValue data = obj.data(); - if (!data.isValid()) { - data = eng->newObject(); - obj.setData(data); - } - QScriptValue result; - if (ctx->argumentCount() == 1) { - QString str = ctx->argument(0).toString(); - str.replace("Roberta", "Ken"); - result = str; - data.setProperty("x", result); - } else { - result = data.property("x"); - } - return result; -} -//! [78] - -//! [79] -QScriptEngine eng; -QScriptValue obj = eng.newObject(); -obj.setProperty("x", eng.newFunction(getSet), - QScriptValue::PropertyGetter|QScriptValue::PropertySetter); -//! [79] - -//! [80] -obj.x = "Roberta sent me"; -print(obj.x); // "Ken sent me" -obj.x = "I sent the bill to Roberta"; -print(obj.x); // "I sent the bill to Ken" -//! [80] - -//! [81] -obj = {}; -obj.__defineGetter__("x", function() { return this._x; }); -obj.__defineSetter__("x", function(v) { print("setting x to", v); this._x = v; }); -obj.x = 123; -//! [81] - -//! [82] -myButton.text = qsTr("Hello world!"); -//! [82] - -//! [83] -myButton.text = qsTranslate("MyAwesomeScript", "Hello world!"); -//! [83] - -//! [84] -FriendlyConversation.prototype.greeting = function(type) -{ - if (FriendlyConversation['greeting_strings'] == undefined) { - FriendlyConversation['greeting_strings'] = [ - QT_TR_NOOP("Hello"), - QT_TR_NOOP("Goodbye") - ]; - } - return qsTr(FriendlyConversation.greeting_strings[type]); -} -//! [84] - -//! [85] -FriendlyConversation.prototype.greeting = function(type) -{ - if (FriendlyConversation['greeting_strings'] == undefined) { - FriendlyConversation['greeting_strings'] = [ - QT_TRANSLATE_NOOP("FriendlyConversation", "Hello"), - QT_TRANSLATE_NOOP("FriendlyConversation", "Goodbye") - ]; - } - return qsTranslate("FriendlyConversation", FriendlyConversation.greeting_strings[type]); -} -//! [85] - -//! [86] -FileCopier.prototype.showProgress = function(done, total, currentFileName) -{ - this.label.text = qsTr("%1 of %2 files copied.\nCopying: %3") - .arg(done) - .arg(total) - .arg(currentFileName)); -} -//! [86] - //! [87] lupdate myscript.qs -ts myscript_la.ts //! [87] @@ -925,64 +49,3 @@ lupdate -extensions qs scripts/ -ts scripts_la.ts //! [89] lrelease myscript_la.ts //! [89] - -//! [90] -({ unitName: "Celsius", - toKelvin: function(x) { return x + 273; } - }) -//! [90] - -//! [91] -QScriptValue object = engine.evaluate("({ unitName: 'Celsius', toKelvin: function(x) { return x + 273; } })"); -QScriptValue toKelvin = object.property("toKelvin"); -QScriptValue result = toKelvin.call(object, QScriptValueList() << 100); -qDebug() << result.toNumber(); // 373 -//! [91] - -//! [92] -QScriptValue add = engine.globalObject().property("add"); -qDebug() << add.call(QScriptValue(), QScriptValueList() << 1 << 2).toNumber(); // 3 -//! [92] - -//! [93] -typedef QSharedPointer<QXmlStreamReader> XmlStreamReaderPointer; - -Q_DECLARE_METATYPE(XmlStreamReaderPointer) - -QScriptValue constructXmlStreamReader(QScriptContext *context, QScriptEngine *engine) -{ - if (!context->isCalledAsConstructor()) - return context->throwError(QScriptContext::SyntaxError, "please use the 'new' operator"); - - QIODevice *device = qobject_cast<QIODevice*>(context->argument(0).toQObject()); - if (!device) - return context->throwError(QScriptContext::TypeError, "please supply a QIODevice as first argument"); - - // Create the C++ object - QXmlStreamReader *reader = new QXmlStreamReader(device); - - XmlStreamReaderPointer pointer(reader); - - // store the shared pointer in the script object that we are constructing - return engine->newVariant(context->thisObject(), qVariantFromValue(pointer)); -} -//! [93] - -//! [94] -QScriptValue xmlStreamReader_atEnd(QScriptContext *context, QScriptEngine *) -{ - XmlStreamReaderPointer reader = qscriptvalue_cast<XmlStreamReaderPointer>(context->thisObject()); - if (!reader) - return context->throwError(QScriptContext::TypeError, "this object is not an XmlStreamReader"); - return reader->atEnd(); -} -//! [94] - -//! [95] - QScriptEngine engine; - QScriptValue xmlStreamReaderProto = engine.newObject(); - xmlStreamReaderProto.setProperty("atEnd", engine.newFunction(xmlStreamReader_atEnd)); - - QScriptValue xmlStreamReaderCtor = engine.newFunction(constructXmlStreamReader, xmlStreamReaderProto); - engine.globalObject().setProperty("XmlStreamReader", xmlStreamReaderCtor); -//! [95] |