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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">bytearrayclass.cpp Example File</h1> <span class="small-subtitle">script/customclass/bytearrayclass.cpp</span> <!-- $$$script/customclass/bytearrayclass.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** 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 Digia Plc and its Subsidiary(-ies) 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#include <QtScript/QScriptClassPropertyIterator></span> <span class="preprocessor">#include <QtScript/QScriptEngine></span> <span class="preprocessor">#include "bytearrayclass.h"</span> <span class="preprocessor">#include "bytearrayprototype.h"</span> <span class="preprocessor">#include <stdlib.h></span> <a href="qmetatype.html#Q_DECLARE_METATYPE">Q_DECLARE_METATYPE</a>(<span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">*</span>) <a href="qmetatype.html#Q_DECLARE_METATYPE">Q_DECLARE_METATYPE</a>(ByteArrayClass<span class="operator">*</span>) <span class="keyword">class</span> ByteArrayClassPropertyIterator : <span class="keyword">public</span> <span class="type"><a href="qscriptclasspropertyiterator.html">QScriptClassPropertyIterator</a></span> { <span class="keyword">public</span>: ByteArrayClassPropertyIterator(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>object); <span class="operator">~</span>ByteArrayClassPropertyIterator(); <span class="type">bool</span> hasNext() <span class="keyword">const</span>; <span class="type">void</span> next(); <span class="type">bool</span> hasPrevious() <span class="keyword">const</span>; <span class="type">void</span> previous(); <span class="type">void</span> toFront(); <span class="type">void</span> toBack(); <span class="type"><a href="qscriptstring.html">QScriptString</a></span> name() <span class="keyword">const</span>; <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> id() <span class="keyword">const</span>; <span class="keyword">private</span>: <span class="type">int</span> m_index; <span class="type">int</span> m_last; }; ByteArrayClass<span class="operator">::</span>ByteArrayClass(<span class="type"><a href="qscriptengine.html">QScriptEngine</a></span> <span class="operator">*</span>engine) : <span class="type"><a href="qobject.html">QObject</a></span>(engine)<span class="operator">,</span> <span class="type"><a href="qscriptclass.html">QScriptClass</a></span>(engine) { <a href="qscriptengine.html#qScriptRegisterMetaType">qScriptRegisterMetaType</a><span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">></span>(engine<span class="operator">,</span> toScriptValue<span class="operator">,</span> fromScriptValue); length <span class="operator">=</span> engine<span class="operator">-</span><span class="operator">></span>toStringHandle(QLatin1String(<span class="string">"length"</span>)); proto <span class="operator">=</span> engine<span class="operator">-</span><span class="operator">></span>newQObject(<span class="keyword">new</span> ByteArrayPrototype(<span class="keyword">this</span>)<span class="operator">,</span> <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span><span class="operator">::</span><span class="type">QtOwnership</span><span class="operator">,</span> <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span><span class="operator">::</span>SkipMethodsInEnumeration <span class="operator">|</span> <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span><span class="operator">::</span>ExcludeSuperClassMethods <span class="operator">|</span> <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span><span class="operator">::</span>ExcludeSuperClassProperties); <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> global <span class="operator">=</span> engine<span class="operator">-</span><span class="operator">></span>globalObject(); proto<span class="operator">.</span>setPrototype(global<span class="operator">.</span>property(<span class="string">"Object"</span>)<span class="operator">.</span>property(<span class="string">"prototype"</span>)); ctor <span class="operator">=</span> engine<span class="operator">-</span><span class="operator">></span>newFunction(construct<span class="operator">,</span> proto); ctor<span class="operator">.</span>setData(engine<span class="operator">-</span><span class="operator">></span>toScriptValue(<span class="keyword">this</span>)); } ByteArrayClass<span class="operator">::</span><span class="operator">~</span>ByteArrayClass() { } <span class="type"><a href="qscriptclass.html">QScriptClass</a></span><span class="operator">::</span>QueryFlags ByteArrayClass<span class="operator">::</span>queryProperty(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>object<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptstring.html">QScriptString</a></span> <span class="operator">&</span>name<span class="operator">,</span> QueryFlags flags<span class="operator">,</span> <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> <span class="operator">*</span>id) { <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">*</span>ba <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">*</span><span class="operator">></span>(object<span class="operator">.</span>data()); <span class="keyword">if</span> (<span class="operator">!</span>ba) <span class="keyword">return</span> <span class="number">0</span>; <span class="keyword">if</span> (name <span class="operator">=</span><span class="operator">=</span> length) { <span class="keyword">return</span> flags; } <span class="keyword">else</span> { <span class="type">bool</span> isArrayIndex; <span class="type"><a href="qtglobal.html#qint32-typedef">qint32</a></span> pos <span class="operator">=</span> name<span class="operator">.</span>toArrayIndex(<span class="operator">&</span>isArrayIndex); <span class="keyword">if</span> (<span class="operator">!</span>isArrayIndex) <span class="keyword">return</span> <span class="number">0</span>; <span class="operator">*</span>id <span class="operator">=</span> pos; <span class="keyword">if</span> ((flags <span class="operator">&</span> HandlesReadAccess) <span class="operator">&</span><span class="operator">&</span> (pos <span class="operator">></span><span class="operator">=</span> ba<span class="operator">-</span><span class="operator">></span>size())) flags <span class="operator">&</span><span class="operator">=</span> <span class="operator">~</span>HandlesReadAccess; <span class="keyword">return</span> flags; } } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>property(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>object<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptstring.html">QScriptString</a></span> <span class="operator">&</span>name<span class="operator">,</span> <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> id) { <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">*</span>ba <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">*</span><span class="operator">></span>(object<span class="operator">.</span>data()); <span class="keyword">if</span> (<span class="operator">!</span>ba) <span class="keyword">return</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span>(); <span class="keyword">if</span> (name <span class="operator">=</span><span class="operator">=</span> length) { <span class="keyword">return</span> ba<span class="operator">-</span><span class="operator">></span>length(); } <span class="keyword">else</span> { <span class="type"><a href="qtglobal.html#qint32-typedef">qint32</a></span> pos <span class="operator">=</span> id; <span class="keyword">if</span> ((pos <span class="operator"><</span> <span class="number">0</span>) <span class="operator">|</span><span class="operator">|</span> (pos <span class="operator">></span><span class="operator">=</span> ba<span class="operator">-</span><span class="operator">></span>size())) <span class="keyword">return</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span>(); <span class="keyword">return</span> <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span>(ba<span class="operator">-</span><span class="operator">></span>at(pos)) <span class="operator">&</span> <span class="number">255</span>; } <span class="keyword">return</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span>(); } <span class="type">void</span> ByteArrayClass<span class="operator">::</span>setProperty(<span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>object<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptstring.html">QScriptString</a></span> <span class="operator">&</span>name<span class="operator">,</span> <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> id<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>value) { <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">*</span>ba <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">*</span><span class="operator">></span>(object<span class="operator">.</span>data()); <span class="keyword">if</span> (<span class="operator">!</span>ba) <span class="keyword">return</span>; <span class="keyword">if</span> (name <span class="operator">=</span><span class="operator">=</span> length) { resize(<span class="operator">*</span>ba<span class="operator">,</span> value<span class="operator">.</span>toInt32()); } <span class="keyword">else</span> { <span class="type"><a href="qtglobal.html#qint32-typedef">qint32</a></span> pos <span class="operator">=</span> id; <span class="keyword">if</span> (pos <span class="operator"><</span> <span class="number">0</span>) <span class="keyword">return</span>; <span class="keyword">if</span> (ba<span class="operator">-</span><span class="operator">></span>size() <span class="operator"><</span><span class="operator">=</span> pos) resize(<span class="operator">*</span>ba<span class="operator">,</span> pos <span class="operator">+</span> <span class="number">1</span>); (<span class="operator">*</span>ba)<span class="operator">[</span>pos<span class="operator">]</span> <span class="operator">=</span> <span class="type">char</span>(value<span class="operator">.</span>toInt32()); } } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span><span class="operator">::</span>PropertyFlags ByteArrayClass<span class="operator">::</span>propertyFlags( <span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span><span class="comment">/*object*/</span><span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qscriptstring.html">QScriptString</a></span> <span class="operator">&</span>name<span class="operator">,</span> <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> <span class="comment">/*id*/</span>) { <span class="keyword">if</span> (name <span class="operator">=</span><span class="operator">=</span> length) { <span class="keyword">return</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span><span class="operator">::</span>Undeletable <span class="operator">|</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span><span class="operator">::</span>SkipInEnumeration; } <span class="keyword">return</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span><span class="operator">::</span>Undeletable; } <span class="type"><a href="qscriptclasspropertyiterator.html">QScriptClassPropertyIterator</a></span> <span class="operator">*</span>ByteArrayClass<span class="operator">::</span>newIterator(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>object) { <span class="keyword">return</span> <span class="keyword">new</span> ByteArrayClassPropertyIterator(object); } <span class="type"><a href="qstring.html">QString</a></span> ByteArrayClass<span class="operator">::</span>name() <span class="keyword">const</span> { <span class="keyword">return</span> QLatin1String(<span class="string">"ByteArray"</span>); } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>prototype() <span class="keyword">const</span> { <span class="keyword">return</span> proto; } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>constructor() { <span class="keyword">return</span> ctor; } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>newInstance(<span class="type">int</span> size) { engine()<span class="operator">-</span><span class="operator">></span>reportAdditionalMemoryCost(size); <span class="keyword">return</span> newInstance(<span class="type"><a href="qbytearray.html">QByteArray</a></span>(size<span class="operator">,</span> <span class="comment">/*ch=*/</span><span class="number">0</span>)); } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>newInstance(<span class="keyword">const</span> <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">&</span>ba) { <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> data <span class="operator">=</span> engine()<span class="operator">-</span><span class="operator">></span>newVariant(<span class="type"><a href="qvariant.html">QVariant</a></span><span class="operator">::</span>fromValue(ba)); <span class="keyword">return</span> engine()<span class="operator">-</span><span class="operator">></span>newObject(<span class="keyword">this</span><span class="operator">,</span> data); } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>construct(<span class="type"><a href="qscriptcontext.html">QScriptContext</a></span> <span class="operator">*</span>ctx<span class="operator">,</span> <span class="type"><a href="qscriptengine.html">QScriptEngine</a></span> <span class="operator">*</span>) { ByteArrayClass <span class="operator">*</span>cls <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span>ByteArrayClass<span class="operator">*</span><span class="operator">></span>(ctx<span class="operator">-</span><span class="operator">></span>callee()<span class="operator">.</span>data()); <span class="keyword">if</span> (<span class="operator">!</span>cls) <span class="keyword">return</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span>(); <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> arg <span class="operator">=</span> ctx<span class="operator">-</span><span class="operator">></span>argument(<span class="number">0</span>); <span class="keyword">if</span> (arg<span class="operator">.</span>instanceOf(ctx<span class="operator">-</span><span class="operator">></span>callee())) <span class="keyword">return</span> cls<span class="operator">-</span><span class="operator">></span>newInstance(qscriptvalue_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">></span>(arg)); <span class="type">int</span> size <span class="operator">=</span> arg<span class="operator">.</span>toInt32(); <span class="keyword">return</span> cls<span class="operator">-</span><span class="operator">></span>newInstance(size); } <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ByteArrayClass<span class="operator">::</span>toScriptValue(<span class="type"><a href="qscriptengine.html">QScriptEngine</a></span> <span class="operator">*</span>eng<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">&</span>ba) { <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ctor <span class="operator">=</span> eng<span class="operator">-</span><span class="operator">></span>globalObject()<span class="operator">.</span>property(<span class="string">"ByteArray"</span>); ByteArrayClass <span class="operator">*</span>cls <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span>ByteArrayClass<span class="operator">*</span><span class="operator">></span>(ctor<span class="operator">.</span>data()); <span class="keyword">if</span> (<span class="operator">!</span>cls) <span class="keyword">return</span> eng<span class="operator">-</span><span class="operator">></span>newVariant(<span class="type"><a href="qvariant.html">QVariant</a></span><span class="operator">::</span>fromValue(ba)); <span class="keyword">return</span> cls<span class="operator">-</span><span class="operator">></span>newInstance(ba); } <span class="type">void</span> ByteArrayClass<span class="operator">::</span>fromScriptValue(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>obj<span class="operator">,</span> <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">&</span>ba) { ba <span class="operator">=</span> qvariant_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">></span>(obj<span class="operator">.</span>data()<span class="operator">.</span>toVariant()); } <span class="type">void</span> ByteArrayClass<span class="operator">::</span>resize(<span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">&</span>ba<span class="operator">,</span> <span class="type">int</span> newSize) { <span class="type">int</span> oldSize <span class="operator">=</span> ba<span class="operator">.</span>size(); ba<span class="operator">.</span>resize(newSize); <span class="keyword">if</span> (newSize <span class="operator">></span> oldSize) engine()<span class="operator">-</span><span class="operator">></span>reportAdditionalMemoryCost(newSize <span class="operator">-</span> oldSize); } ByteArrayClassPropertyIterator<span class="operator">::</span>ByteArrayClassPropertyIterator(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>object) : <span class="type"><a href="qscriptclasspropertyiterator.html">QScriptClassPropertyIterator</a></span>(object) { toFront(); } ByteArrayClassPropertyIterator<span class="operator">::</span><span class="operator">~</span>ByteArrayClassPropertyIterator() { } <span class="type">bool</span> ByteArrayClassPropertyIterator<span class="operator">::</span>hasNext() <span class="keyword">const</span> { <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">*</span>ba <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">*</span><span class="operator">></span>(object()<span class="operator">.</span>data()); <span class="keyword">return</span> m_index <span class="operator"><</span> ba<span class="operator">-</span><span class="operator">></span>size(); } <span class="type">void</span> ByteArrayClassPropertyIterator<span class="operator">::</span>next() { m_last <span class="operator">=</span> m_index; <span class="operator">+</span><span class="operator">+</span>m_index; } <span class="type">bool</span> ByteArrayClassPropertyIterator<span class="operator">::</span>hasPrevious() <span class="keyword">const</span> { <span class="keyword">return</span> (m_index <span class="operator">></span> <span class="number">0</span>); } <span class="type">void</span> ByteArrayClassPropertyIterator<span class="operator">::</span>previous() { <span class="operator">-</span><span class="operator">-</span>m_index; m_last <span class="operator">=</span> m_index; } <span class="type">void</span> ByteArrayClassPropertyIterator<span class="operator">::</span>toFront() { m_index <span class="operator">=</span> <span class="number">0</span>; m_last <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>; } <span class="type">void</span> ByteArrayClassPropertyIterator<span class="operator">::</span>toBack() { <span class="type"><a href="qbytearray.html">QByteArray</a></span> <span class="operator">*</span>ba <span class="operator">=</span> qscriptvalue_cast<span class="operator"><</span><span class="type"><a href="qbytearray.html">QByteArray</a></span><span class="operator">*</span><span class="operator">></span>(object()<span class="operator">.</span>data()); m_index <span class="operator">=</span> ba<span class="operator">-</span><span class="operator">></span>size(); m_last <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>; } <span class="type"><a href="qscriptstring.html">QScriptString</a></span> ByteArrayClassPropertyIterator<span class="operator">::</span>name() <span class="keyword">const</span> { <span class="keyword">return</span> object()<span class="operator">.</span>engine()<span class="operator">-</span><span class="operator">></span>toStringHandle(<span class="type"><a href="qstring.html">QString</a></span><span class="operator">::</span>number(m_last)); } <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> ByteArrayClassPropertyIterator<span class="operator">::</span>id() <span class="keyword">const</span> { <span class="keyword">return</span> m_last; }</pre> </div> <!-- @@@script/customclass/bytearrayclass.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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