Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_recognizer_ex_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/ForumNokia/Document_Handler_Example/RecognizerDll/src/RecognizerEx.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">* ============================================================================</span>
<a name="l00003"></a>00003 <span class="comment">* Name : RecognizerEx from RecognizerEx.cpp</span>
<a name="l00004"></a>00004 <span class="comment">* Part of : RecognizerEx</span>
<a name="l00005"></a>00005 <span class="comment">* Created : 27/06/06 by Forum Nokia</span>
<a name="l00006"></a>00006 <span class="comment">* Version : 2.0</span>
<a name="l00007"></a>00007 <span class="comment">* Copyright: Nokia Corporation</span>
<a name="l00008"></a>00008 <span class="comment">* ============================================================================</span>
<a name="l00009"></a>00009 <span class="comment">*/</span>
<a name="l00010"></a>00010
<a name="l00011"></a>00011 <span class="comment">// INCLUDE FILES</span>
<a name="l00012"></a>00012 <span class="preprocessor">#include <apmrec.h></span>
<a name="l00013"></a>00013 <span class="preprocessor">#include <apmstd.h></span>
<a name="l00014"></a>00014 <span class="comment">//#ifdef __SERIES60_3X__</span>
<a name="l00015"></a>00015 <span class="preprocessor"> #include <ImplementationProxy.h></span>
<a name="l00016"></a>00016 <span class="comment">//#endif</span>
<a name="l00017"></a>00017 <span class="preprocessor">#include "RecognizerEx.h"</span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="comment">// CONSTANTS</span>
<a name="l00020"></a>00020 <span class="keyword">const</span> TUid KUidRecognizerEx={0x101FF1ec};
<a name="l00021"></a>00021 <span class="keyword">const</span> TInt KMaxBufferLength=4; <span class="comment">// maximum amount of buffer space we will ever use</span>
<a name="l00022"></a>00022 <span class="keyword">const</span> TInt KRecRtFileExtensionsMightBeValid=4; <span class="comment">// If the file name length > 4, the file extension might be valid</span>
<a name="l00023"></a>00023
<a name="l00024"></a>00024 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KExtension1, <span class="stringliteral">".new"</span>);
<a name="l00025"></a>00025
<a name="l00026"></a>00026 _LIT8(KDataType,<span class="stringliteral">"application/something-totally-new"</span>);
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="comment">// ================= MEMBER FUNCTIONS =======================</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00031"></a>00031 <span class="comment">// RecognizerEx::RecognizerEx()</span>
<a name="l00032"></a>00032 <span class="comment">// constructs the object</span>
<a name="l00033"></a>00033 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00034"></a>00034 <span class="comment">//</span>
<a name="l00035"></a>00035 CApaRecognizerEx::CApaRecognizerEx()
<a name="l00036"></a>00036 : CApaDataRecognizerType(KUidRecognizerEx, CApaDataRecognizerType::ENormal)
<a name="l00037"></a>00037 {
<a name="l00038"></a>00038 iCountDataTypes=1;
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00042"></a>00042 <span class="comment">// RecognizerEx::~RecognizerEx()</span>
<a name="l00043"></a>00043 <span class="comment">// Destroys the object</span>
<a name="l00044"></a>00044 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00045"></a>00045 <span class="comment">//</span>
<a name="l00046"></a>00046 CApaRecognizerEx::~CApaRecognizerEx()
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 <span class="comment">// Do nothing</span>
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00052"></a>00052 <span class="comment">// RecognizerEx::PreferredBufSize()</span>
<a name="l00053"></a>00053 <span class="comment">// Returns preferred buffer size</span>
<a name="l00054"></a>00054 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00055"></a>00055 <span class="comment">//</span>
<a name="l00056"></a>00056 TUint CApaRecognizerEx::PreferredBufSize()
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 <span class="keywordflow">return</span> KMaxBufferLength;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060
<a name="l00061"></a>00061 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00062"></a>00062 <span class="comment">// RecognizerEx::SupportedDataTypeL()</span>
<a name="l00063"></a>00063 <span class="comment">// Returns supported mime type</span>
<a name="l00064"></a>00064 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00065"></a>00065 <span class="comment">//</span>
<a name="l00066"></a>00066 TDataType CApaRecognizerEx::SupportedDataTypeL(TInt <span class="comment">/*aIndex*/</span>)<span class="keyword"> const</span>
<a name="l00067"></a>00067 <span class="keyword"> </span>{
<a name="l00068"></a>00068 <span class="keywordflow">return</span> TDataType(KDataType);
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00072"></a>00072 <span class="comment">// RecognizerEx::DoRecognizeL()</span>
<a name="l00073"></a>00073 <span class="comment">// Recognizes the file by name and/or head buffer</span>
<a name="l00074"></a>00074 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00075"></a>00075 <span class="comment">//</span>
<a name="l00076"></a>00076 <span class="keywordtype">void</span> CApaRecognizerEx::DoRecognizeL(<span class="keyword">const</span> TDesC& aName, <span class="keyword">const</span> TDesC8& <span class="comment">/*aBuffer*/</span>)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="comment">// To keep code simple, we only check file name extension</span>
<a name="l00079"></a>00079 <span class="keywordflow">if</span> (aName.Length()>KRecRtFileExtensionsMightBeValid)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 <span class="keywordflow">if</span> (aName.Right(KRecRtFileExtensionsMightBeValid).CompareF(KExtension1)==0)
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 iConfidence=ECertain; <span class="comment">// is certainly something totally new</span>
<a name="l00084"></a>00084 iDataType=TDataType(KDataType);
<a name="l00085"></a>00085 <span class="keywordflow">return</span>;
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="comment">// ================= OTHER EXPORTED FUNCTIONS ==============</span>
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="comment">//#ifdef __SERIES60_3X__</span>
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00097"></a>00097 <span class="comment">// RecognizerEx::CreateRecognizerL()</span>
<a name="l00098"></a>00098 <span class="comment">// Returns pointer to the new object</span>
<a name="l00099"></a>00099 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00100"></a>00100 <span class="comment">//</span>
<a name="l00101"></a>00101 CApaDataRecognizerType* CApaRecognizerEx::CreateRecognizerL()
<a name="l00102"></a>00102 {
<a name="l00103"></a>00103 <span class="keywordflow">return</span> <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_apa_recognizer_ex.html">CApaRecognizerEx</a>();
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 <span class="keyword">const</span> TImplementationProxy ImplementationTable[] =
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 IMPLEMENTATION_PROXY_ENTRY(KRecognizerExImplementationUid, CApaRecognizerEx::CreateRecognizerL)
<a name="l00109"></a>00109 };
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00112"></a>00112 <span class="comment">// ImplementationGroupProxy</span>
<a name="l00113"></a>00113 <span class="comment">// Provides access to the implementationtable</span>
<a name="l00114"></a>00114 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00115"></a>00115 <span class="comment">//</span>
<a name="l00116"></a>00116 EXPORT_C <span class="keyword">const</span> TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
<a name="l00117"></a>00117 {
<a name="l00118"></a>00118 aTableCount = <span class="keyword">sizeof</span>(ImplementationTable) / <span class="keyword">sizeof</span>(TImplementationProxy);
<a name="l00119"></a>00119 <span class="keywordflow">return</span> ImplementationTable;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121 <span class="comment">/*</span>
<a name="l00122"></a>00122 <span class="comment">#else</span>
<a name="l00123"></a>00123 <span class="comment">EXPORT_C CApaDataRecognizerType* CreateRecognizer()</span>
<a name="l00124"></a>00124 <span class="comment"> {</span>
<a name="l00125"></a>00125 <span class="comment"> CApaDataRecognizerType* thing=new CApaRecognizerEx();</span>
<a name="l00126"></a>00126 <span class="comment"> return thing; // NULL if new failed</span>
<a name="l00127"></a>00127 <span class="comment"> }</span>
<a name="l00128"></a>00128 <span class="comment"></span>
<a name="l00129"></a>00129 <span class="comment">GLDEF_C TInt E32Dll(TDllReason aReason)</span>
<a name="l00130"></a>00130 <span class="comment"> {</span>
<a name="l00131"></a>00131 <span class="comment"> return KErrNone;</span>
<a name="l00132"></a>00132 <span class="comment"> }</span>
<a name="l00133"></a>00133 <span class="comment">#endif</span>
<a name="l00134"></a>00134 <span class="comment">*/</span>
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