Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_string_renderer_8cpp_source.html
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<h1>examples/ForumNokia/DescriptorExample/src/StringRenderer.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"> * Copyright © 2008 Nokia Corporation.</span>
<a name="l00003"></a>00003 <span class="comment"> */</span>
<a name="l00004"></a>00004
<a name="l00005"></a>00005 <span class="preprocessor">#include "StringRenderer.h"</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00008"></a>00008 <span class="comment">// Append() documented in StringRenderer.h.</span>
<a name="l00009"></a>00009 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00010"></a>00010 <span class="keywordtype">void</span> Append( <span class="keyword">const</span> TDesC8 &aSrc, TDes16 &aDst )
<a name="l00011"></a>00011 {
<a name="l00012"></a>00012 <span class="keywordflow">for</span>( TInt i=0; i < aSrc.Length(); i++ )
<a name="l00013"></a>00013 {
<a name="l00014"></a>00014 aDst.Append(aSrc[i]);
<a name="l00015"></a>00015 }
<a name="l00016"></a>00016 }
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="keywordtype">void</span> Append( <span class="keyword">const</span> TDesC16 &aSrc, TDes16 &aDst )
<a name="l00019"></a>00019 {
<a name="l00020"></a>00020 aDst.Append( aSrc );
<a name="l00021"></a>00021 }
<a name="l00022"></a>00022
<a name="l00023"></a>00023 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00024"></a>00024 <span class="comment">// RenderAsNumbers() documented in StringRenderer.h.</span>
<a name="l00025"></a>00025 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00026"></a>00026 <span class="keyword">template</span> <<span class="keyword">class</span> TDESC>
<a name="l00027"></a>00027 LOCAL_C <span class="keywordtype">void</span> RenderAsNumbersTemplated( <span class="keyword">const</span> TDESC &anArray, TDes16 &aOutput )
<a name="l00028"></a>00028 {
<a name="l00029"></a>00029 aOutput.Append(<span class="charliteral">'{'</span>);
<a name="l00030"></a>00030 <span class="keywordflow">for</span>( TInt i=0; i < anArray.Length(); i++ )
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="keywordflow">if</span>( i>0 )
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 aOutput.Append(<span class="charliteral">','</span>);
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036 aOutput.AppendNum( (TInt) anArray[i] );
<a name="l00037"></a>00037 }
<a name="l00038"></a>00038 aOutput.Append(<span class="charliteral">'}'</span>);
<a name="l00039"></a>00039 }
<a name="l00040"></a>00040
<a name="l00041"></a>00041 <span class="keywordtype">void</span> RenderAsNumbers( <span class="keyword">const</span> TDesC8 &anArray, TDes16 &aOutput )
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 RenderAsNumbersTemplated(anArray, aOutput);
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045
<a name="l00046"></a>00046 <span class="keywordtype">void</span> RenderAsNumbers( <span class="keyword">const</span> TDesC16 &anArray, TDes16 &aOutput )
<a name="l00047"></a>00047 {
<a name="l00048"></a>00048 RenderAsNumbersTemplated(anArray, aOutput);
<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">// Renders contents of 8 or 16 bit descriptor either as numbers or characters.</span>
<a name="l00053"></a>00053 <span class="comment">// The example result is "Hello" when aRenderFormat == KRenderDefault and</span>
<a name="l00054"></a>00054 <span class="comment">// {72,101,108,108,111} when aRenderFormat == KRenderContentAsBinary</span>
<a name="l00055"></a>00055 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00056"></a>00056 <span class="keyword">template</span> <<span class="keyword">class</span> DESC>
<a name="l00057"></a>00057 LOCAL_C <span class="keywordtype">void</span> RenderDescriptorContent( <span class="keyword">const</span> DESC &aVariable,
<a name="l00058"></a>00058 TDes16 &aOutput,
<a name="l00059"></a>00059 TInt aRenderFormat=KRenderDefault )
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 <span class="keywordflow">if</span>( aRenderFormat & KRenderContentAsBinary )
<a name="l00062"></a>00062 { <span class="comment">// render as numbers</span>
<a name="l00063"></a>00063 RenderAsNumbers( aVariable, aOutput );
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 <span class="keywordflow">else</span>
<a name="l00066"></a>00066 { <span class="comment">// render as string</span>
<a name="l00067"></a>00067 aOutput.Append(<span class="charliteral">'"'</span>);
<a name="l00068"></a>00068 Append(aVariable, aOutput);
<a name="l00069"></a>00069 aOutput.Append(<span class="charliteral">'"'</span>);
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00074"></a>00074 <span class="comment">// RenderObject() documented in StringRenderer.h.</span>
<a name="l00075"></a>00075 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00076"></a>00076 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( KTDesCCharacteristicsFormat, <span class="stringliteral">"(len=%d)"</span> );
<a name="l00077"></a>00077 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( KTDesCharacteristicsFormat, <span class="stringliteral">"(len=%d, maxlen=%d)"</span> );
<a name="l00078"></a>00078
<a name="l00079"></a>00079 <span class="keywordtype">void</span> RenderObject(<span class="keyword">const</span> TDesC8 &aVariable, TDes16 &aOutput, TInt aRenderFormat)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081 RenderDescriptorContent( aVariable, aOutput, aRenderFormat );
<a name="l00082"></a>00082 <span class="keywordflow">if</span>( aRenderFormat & KRenderCharacteristics )
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 aOutput.Append(<span class="charliteral">' '</span>);
<a name="l00085"></a>00085 aOutput.AppendFormat( KTDesCCharacteristicsFormat, aVariable.Length() );
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088
<a name="l00089"></a>00089 <span class="keywordtype">void</span> RenderObject(<span class="keyword">const</span> TDes8 &aVariable, TDes16 &aOutput, TInt aRenderFormat)
<a name="l00090"></a>00090 {
<a name="l00091"></a>00091 RenderDescriptorContent( aVariable, aOutput, aRenderFormat );
<a name="l00092"></a>00092 <span class="keywordflow">if</span>( aRenderFormat & KRenderCharacteristics )
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 aOutput.Append(<span class="charliteral">' '</span>);
<a name="l00095"></a>00095 aOutput.AppendFormat( KTDesCharacteristicsFormat, aVariable.Length(),
<a name="l00096"></a>00096 aVariable.MaxLength() );
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordtype">void</span> RenderObject(<span class="keyword">const</span> TDesC16 &aVariable, TDes16 &aOutput, TInt aRenderFormat)
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 RenderDescriptorContent( aVariable, aOutput, aRenderFormat );
<a name="l00103"></a>00103 <span class="keywordflow">if</span>( aRenderFormat & KRenderCharacteristics )
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 aOutput.Append(<span class="charliteral">' '</span>);
<a name="l00106"></a>00106 aOutput.AppendFormat( KTDesCCharacteristicsFormat, aVariable.Length() );
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109
<a name="l00110"></a>00110 <span class="keywordtype">void</span> RenderObject(<span class="keyword">const</span> TDes16 &aVariable, TDes16 &aOutput, TInt aRenderFormat)
<a name="l00111"></a>00111 {
<a name="l00112"></a>00112 RenderDescriptorContent( aVariable, aOutput, aRenderFormat );
<a name="l00113"></a>00113 <span class="keywordflow">if</span>( aRenderFormat & KRenderCharacteristics )
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 aOutput.Append(<span class="charliteral">' '</span>);
<a name="l00116"></a>00116 aOutput.AppendFormat( KTDesCharacteristicsFormat,
<a name="l00117"></a>00117 aVariable.Length(),
<a name="l00118"></a>00118 aVariable.MaxLength() );
<a name="l00119"></a>00119 }
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00122"></a>00122 <span class="keywordtype">void</span> RenderObject(<span class="keyword">const</span> TInt &aVariable,
<a name="l00123"></a>00123 TDes16 &aOutput,
<a name="l00124"></a>00124 TInt <span class="comment">/*aRenderFormat*/</span> )
<a name="l00125"></a>00125 {
<a name="l00126"></a>00126 aOutput.AppendNum( aVariable );
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00130"></a>00130 <span class="comment">// RenderHeader() documented in StringRenderer.h.</span>
<a name="l00131"></a>00131 <span class="comment">// -----------------------------------------------------------------------------</span>
<a name="l00132"></a>00132 <span class="keywordtype">void</span> RenderHeader(<span class="keyword">const</span> TDesC &aHeader, TDes &aOutput)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( KFormat, <span class="stringliteral">"\n--- %S ---\n"</span> );
<a name="l00135"></a>00135 TInt spaceAvailable = aOutput.MaxLength() - aOutput.Length();
<a name="l00136"></a>00136 <span class="keywordflow">if</span>( spaceAvailable >=
<a name="l00137"></a>00137 aHeader.Length() +
<a name="l00138"></a>00138 KFormat().Length()-2 ) <span class="comment">// "%S" is replaced with header text</span>
<a name="l00139"></a>00139 {
<a name="l00140"></a>00140 aOutput.AppendFormat( KFormat, &aHeader );
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142 }
</pre></div></div>
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