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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_encoder_selection_dialog_8cpp_source.html
author Dominic Pinkman <dominic.pinkman@nokia.com>
Fri, 13 Aug 2010 16:47:46 +0100
changeset 14 578be2adaf3e
parent 6 43e37759235e
permissions -rw-r--r--
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
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<title>TB9.2 Example Applications: examples/ForumNokia/ImageConverter/src/EncoderSelectionDialog.cpp Source File</title>
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<link href="tabs.css" rel="stylesheet" type="text/css"/>
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<link href="doxygen.css" rel="stylesheet" type="text/css"/>
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</head>
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<body>
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<!-- Generated by Doxygen 1.6.2 -->
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<h1>examples/ForumNokia/ImageConverter/src/EncoderSelectionDialog.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
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<a name="l00002"></a>00002 <span class="comment"> * Copyright © 2008 Nokia Corporation.</span>
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<a name="l00003"></a>00003 <span class="comment"> */</span>
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<a name="l00004"></a>00004
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<a name="l00005"></a>00005 <span class="comment">// INCLUDE FILES</span>
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<a name="l00006"></a>00006 <span class="preprocessor">#include &lt;aknlists.h&gt;</span>
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<a name="l00007"></a>00007 <span class="preprocessor">#include &lt;ImageConversion.h&gt;</span>
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<a name="l00008"></a>00008
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<a name="l00009"></a>00009 <span class="preprocessor">#include &quot;ImageConverter.hrh&quot;</span>
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<a name="l00010"></a>00010 <span class="preprocessor">#include &quot;EncoderSelectionDialog.h&quot;</span>
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<a name="l00011"></a>00011 <span class="preprocessor">#include &quot;ImageConverterEngine.h&quot;</span>
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<a name="l00012"></a>00012
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<a name="l00013"></a>00013 <span class="keyword">const</span> TInt KNumMessages = 10;
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<a name="l00014"></a>00014 <span class="keyword">const</span> TInt KMaxEncoderListLength = 80;
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<a name="l00015"></a>00015 <span class="keyword">const</span> TInt KPeriodicTimerInterval(100000);
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<a name="l00016"></a>00016
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<a name="l00017"></a>00017 <span class="comment">// ================= MEMBER FUNCTIONS =======================</span>
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019 <span class="comment">// C++ default constructor can NOT contain any code, that</span>
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<a name="l00020"></a>00020 <span class="comment">// might leave.</span>
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<a name="l00021"></a>00021 <span class="comment">//</span>
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<a name="l00022"></a><a class="code" href="class_c_encoder_selection_dialog.html#a71951ff8e3c7defd95268123f3380e8f">00022</a> <a class="code" href="class_c_encoder_selection_dialog.html#a71951ff8e3c7defd95268123f3380e8f">CEncoderSelectionDialog::CEncoderSelectionDialog</a>(
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<a name="l00023"></a>00023     RImageTypeDescriptionArray&amp; aImageTypes,
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<a name="l00024"></a>00024     TInt&amp; aSelectedIdx ) :
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<a name="l00025"></a>00025     iImageTypes( aImageTypes ), iSelectedIdx( aSelectedIdx )
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<a name="l00026"></a>00026     {
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<a name="l00027"></a>00027     }
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<a name="l00028"></a>00028
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<a name="l00029"></a><a class="code" href="class_c_encoder_selection_dialog.html#a9d07affe7e42d407ca05ca6b3da32477">00029</a> <a class="code" href="class_c_encoder_selection_dialog.html#a9d07affe7e42d407ca05ca6b3da32477">CEncoderSelectionDialog::~CEncoderSelectionDialog</a>()
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<a name="l00030"></a>00030     {
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<a name="l00031"></a>00031     <span class="keywordflow">if</span>(iPeriodic)
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<a name="l00032"></a>00032         {
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<a name="l00033"></a>00033         iPeriodic-&gt;Cancel();
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<a name="l00034"></a>00034         }
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<a name="l00035"></a>00035     <span class="keyword">delete</span> iPeriodic;
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<a name="l00036"></a>00036     }
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<a name="l00037"></a>00037
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<a name="l00038"></a>00038
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<a name="l00039"></a>00039 <span class="comment">// ----------------------------------------------------------</span>
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<a name="l00040"></a>00040 <span class="comment">// CEncoderSelectionDialog::PreLayoutDynInitL()</span>
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<a name="l00041"></a>00041 <span class="comment">// Initializing the dialog dynamically</span>
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<a name="l00042"></a>00042 <span class="comment">// ----------------------------------------------------------</span>
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<a name="l00043"></a>00043 <span class="comment">//</span>
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<a name="l00044"></a><a class="code" href="class_c_encoder_selection_dialog.html#a647eab685e13921aed4b9077ff69405e">00044</a> <span class="keywordtype">void</span> <a class="code" href="class_c_encoder_selection_dialog.html#a647eab685e13921aed4b9077ff69405e">CEncoderSelectionDialog::PreLayoutDynInitL</a>()
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<a name="l00045"></a>00045     {
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<a name="l00046"></a>00046     SetEditableL(ETrue);
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<a name="l00047"></a>00047
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<a name="l00048"></a>00048     <span class="comment">// Initialize component array</span>
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<a name="l00049"></a>00049     InitComponentArrayL();
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<a name="l00050"></a>00050
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<a name="l00051"></a>00051     <span class="comment">// Create a control to display a list of messages</span>
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<a name="l00052"></a>00052     iListBox = <span class="keyword">new</span> (ELeave) CAknSingleStyleListBox;
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<a name="l00053"></a>00053     iListBox-&gt;SetContainerWindowL(*<span class="keyword">this</span>);
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<a name="l00054"></a>00054     iListBox-&gt;ConstructL(<span class="keyword">this</span>);
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<a name="l00055"></a>00055     iListBox-&gt;SetListBoxObserver(<span class="keyword">this</span>);
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<a name="l00056"></a>00056
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<a name="l00057"></a>00057     iListBox-&gt;CreateScrollBarFrameL(ETrue);
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<a name="l00058"></a>00058     iListBox-&gt;ScrollBarFrame()-&gt;
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<a name="l00059"></a>00059         SetScrollBarVisibilityL(CEikScrollBarFrame::EAuto,
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<a name="l00060"></a>00060                                 CEikScrollBarFrame::EAuto);
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<a name="l00061"></a>00061
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<a name="l00062"></a>00062     Components().AppendLC(iListBox);
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<a name="l00063"></a>00063     CleanupStack::Pop(iListBox);
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<a name="l00064"></a>00064
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<a name="l00065"></a>00065
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<a name="l00066"></a>00066     <span class="comment">// Create an array to hold the messages</span>
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<a name="l00067"></a>00067     iMessageList = <span class="keyword">new</span> (ELeave) CDesCArrayFlat(KNumMessages);
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<a name="l00068"></a>00068
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<a name="l00069"></a>00069     <span class="comment">// Give it to the control</span>
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<a name="l00070"></a>00070     CTextListBoxModel* model = iListBox-&gt;Model();
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<a name="l00071"></a>00071     model-&gt;SetItemTextArray(iMessageList);
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<a name="l00072"></a>00072     model-&gt;SetOwnershipType(ELbmOwnsItemArray); <span class="comment">// transfer ownership</span>
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<a name="l00073"></a>00073     }
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<a name="l00074"></a>00074
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<a name="l00075"></a>00075 <span class="keywordtype">void</span> CEncoderSelectionDialog::PostLayoutDynInitL()
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<a name="l00076"></a>00076     {
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<a name="l00077"></a>00077     <span class="comment">// add the message to the list</span>
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<a name="l00078"></a>00078     iListBox-&gt;SetRect( Rect() );
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<a name="l00079"></a>00079
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<a name="l00080"></a>00080
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<a name="l00081"></a>00081     <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>( KTab, <span class="stringliteral">&quot;\t&quot;</span> );
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<a name="l00082"></a>00082
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<a name="l00083"></a>00083     <span class="keywordflow">for</span>( TInt i=0; i&lt;iImageTypes.Count(); i++ )
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<a name="l00084"></a>00084         {
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<a name="l00085"></a>00085         TBuf&lt;KMaxEncoderListLength&gt; desc;
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087         desc.Append( KTab );
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<a name="l00088"></a>00088         desc.Append( iImageTypes[i]-&gt;Description() );
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<a name="l00089"></a>00089
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<a name="l00090"></a>00090         iMessageList-&gt;AppendL( desc );
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<a name="l00091"></a>00091         }
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<a name="l00092"></a>00092
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<a name="l00093"></a>00093     <span class="comment">// tell the control about the change</span>
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<a name="l00094"></a>00094     iListBox-&gt;HandleItemAdditionL();
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<a name="l00095"></a>00095     }
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<a name="l00096"></a>00096
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<a name="l00097"></a>00097
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<a name="l00098"></a>00098 <span class="comment">// ----------------------------------------------------------</span>
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<a name="l00099"></a>00099 <span class="comment">// CEncoderSelectionDialog::OkToExitL()</span>
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<a name="l00100"></a>00100 <span class="comment">// This function ALWAYS returns ETrue</span>
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<a name="l00101"></a>00101 <span class="comment">// ----------------------------------------------------------</span>
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<a name="l00102"></a>00102 <span class="comment">//</span>
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<a name="l00103"></a><a class="code" href="class_c_encoder_selection_dialog.html#ac7feccc5f2424a3503ba5655c0fe8360">00103</a> TBool <a class="code" href="class_c_encoder_selection_dialog.html#ac7feccc5f2424a3503ba5655c0fe8360">CEncoderSelectionDialog::OkToExitL</a>(TInt <span class="comment">/*aButtonId*/</span>)
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<a name="l00104"></a>00104     {
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<a name="l00105"></a>00105     iSelectedIdx = iListBox-&gt;CurrentItemIndex();
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<a name="l00106"></a>00106     <span class="keywordflow">return</span> ETrue;
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<a name="l00107"></a>00107     }
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<a name="l00108"></a>00108
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<a name="l00109"></a>00109 TInt CEncoderSelectionDialog::CountComponentControls()<span class="keyword"> const</span>
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<a name="l00110"></a>00110 <span class="keyword">    </span>{
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<a name="l00111"></a>00111     TInt count = 0;
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<a name="l00112"></a>00112     <span class="keywordflow">if</span>( iListBox )
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<a name="l00113"></a>00113         count = 1;
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<a name="l00114"></a>00114
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<a name="l00115"></a>00115     <span class="keywordflow">return</span> count;
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<a name="l00116"></a>00116     }
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<a name="l00117"></a>00117
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<a name="l00118"></a>00118 CCoeControl* CEncoderSelectionDialog::ComponentControl(TInt <span class="comment">/*aIndex*/</span>)<span class="keyword"> const</span>
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<a name="l00119"></a>00119 <span class="keyword">    </span>{
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<a name="l00120"></a>00120     <span class="keywordflow">return</span> iListBox;
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<a name="l00121"></a>00121     }
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<a name="l00122"></a>00122
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<a name="l00123"></a><a class="code" href="class_c_encoder_selection_dialog.html#a5ba12a4607e6b6d01445ac72491c4bcd">00123</a> TKeyResponse <a class="code" href="class_c_encoder_selection_dialog.html#a5ba12a4607e6b6d01445ac72491c4bcd">CEncoderSelectionDialog::OfferKeyEventL</a>(
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<a name="l00124"></a>00124     <span class="keyword">const</span> TKeyEvent&amp; aKeyEvent,TEventCode aType)
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<a name="l00125"></a>00125     {
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<a name="l00126"></a>00126     <span class="keywordflow">if</span>( iListBox )
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<a name="l00127"></a>00127         {
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<a name="l00128"></a>00128         <span class="keywordflow">if</span> (aKeyEvent.iCode == EKeyOK)
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<a name="l00129"></a>00129             {
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<a name="l00130"></a>00130             iSelectedIdx = iListBox-&gt;CurrentItemIndex();
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<a name="l00131"></a>00131             TryExitL(1);
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<a name="l00132"></a>00132                 <span class="keywordflow">return</span>( EKeyWasConsumed );
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<a name="l00133"></a>00133             }
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<a name="l00134"></a>00134         <span class="keywordflow">else</span>
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<a name="l00135"></a>00135             {
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<a name="l00136"></a>00136             <span class="keywordflow">return</span>( iListBox-&gt;OfferKeyEventL(aKeyEvent, aType) );
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<a name="l00137"></a>00137             }
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<a name="l00138"></a>00138         }
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<a name="l00139"></a>00139     <span class="keywordflow">else</span>
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<a name="l00140"></a>00140        <span class="keywordflow">return</span>( EKeyWasNotConsumed );
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<a name="l00141"></a>00141     }
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<a name="l00142"></a>00142
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<a name="l00143"></a>00143 <span class="keywordtype">void</span> CEncoderSelectionDialog::SizeChanged()
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<a name="l00144"></a>00144     {
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<a name="l00145"></a>00145     iListBox-&gt;SetRect(Rect());
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<a name="l00146"></a>00146     }
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<a name="l00147"></a>00147
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<a name="l00148"></a>00148 <span class="keywordtype">void</span> CEncoderSelectionDialog::HandleResourceChange(TInt aType)
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<a name="l00149"></a>00149     {
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<a name="l00150"></a>00150     CAknDialog::HandleResourceChange(aType);
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<a name="l00151"></a>00151
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<a name="l00152"></a>00152     <span class="keywordflow">if</span> ( aType==KEikDynamicLayoutVariantSwitch )
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<a name="l00153"></a>00153         {
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<a name="l00154"></a>00154         TRect rect;
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<a name="l00155"></a>00155         AknLayoutUtils::LayoutMetricsRect(
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<a name="l00156"></a>00156         AknLayoutUtils::EMainPane,rect);
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<a name="l00157"></a>00157
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<a name="l00158"></a>00158         SetRect(rect);
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<a name="l00159"></a>00159         }
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<a name="l00160"></a>00160
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<a name="l00161"></a>00161     }
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<a name="l00162"></a>00162
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<a name="l00163"></a>00163 <span class="keywordtype">void</span> CEncoderSelectionDialog::HandleListBoxEventL(CEikListBox* <span class="comment">/*aListBox*/</span>, TListBoxEvent aEventType)
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<a name="l00164"></a>00164     {
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<a name="l00165"></a>00165     <span class="keywordflow">if</span> (aEventType==EEventEnterKeyPressed || aEventType==EEventItemDoubleClicked)
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<a name="l00166"></a>00166         {
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<a name="l00167"></a>00167         iSelectedIdx = iListBox-&gt;CurrentItemIndex();
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<a name="l00168"></a>00168
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<a name="l00169"></a>00169         <span class="comment">// NOTE: Need to cut method calling flow</span>
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<a name="l00170"></a>00170         <span class="comment">// Wait as asynchronoysly 10ms and call TryExitL() after that  </span>
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<a name="l00171"></a>00171         <span class="keywordflow">if</span> (!iPeriodic)
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<a name="l00172"></a>00172             {
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<a name="l00173"></a>00173             iPeriodic = CPeriodic::NewL(CActive::EPriorityIdle);
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<a name="l00174"></a>00174             iPeriodic-&gt;Start(KPeriodicTimerInterval, KPeriodicTimerInterval,TCallBack(PeriodicTimerCallBack, <span class="keyword">this</span>));
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<a name="l00175"></a>00175             }
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<a name="l00176"></a>00176         }
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<a name="l00177"></a>00177     }
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<a name="l00178"></a>00178
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<a name="l00179"></a>00179
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<a name="l00180"></a>00180 TInt CEncoderSelectionDialog::PeriodicTimerCallBack(TAny* aAny)
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<a name="l00181"></a>00181     {
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<a name="l00182"></a>00182     <a class="code" href="class_c_encoder_selection_dialog.html">CEncoderSelectionDialog</a>* <span class="keyword">self</span> = <span class="keyword">static_cast&lt;</span><a class="code" href="class_c_encoder_selection_dialog.html">CEncoderSelectionDialog</a>*<span class="keyword">&gt;</span>( aAny );
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<a name="l00183"></a>00183     <span class="keyword">self</span>-&gt;iPeriodic-&gt;Cancel();
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<a name="l00184"></a>00184     TRAPD(err,
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<a name="l00185"></a>00185             self-&gt;TryExitL(1);
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<a name="l00186"></a>00186     );
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<a name="l00187"></a>00187     <span class="keywordflow">return</span> KErrNone;
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<a name="l00188"></a>00188     }
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<a name="l00189"></a>00189
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<a name="l00190"></a>00190
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<a name="l00191"></a>00191
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</pre></div></div>
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<hr size="1"/><address style="text-align: right;"><small>Generated by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address>
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</body>
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</html>
MCL/sftools/depl/docscontent