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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>helpfulform.cpp Source File</title><link href="style.css" rel="stylesheet" type="text/css"></head><table border="0" width="100%" height="8" bgcolor="#eeeeee"><tr> <td width="100%" height="1"><b><font size="2" color="#000000" face="Arial, Helvetica, sans-serif"><strong><a name=Top></a>S60 3rd Edition SDK FP1 for Symbian OS </strong></font></b><br><i>Example Applications Guide</i></td></tr> </table><!-- Generated by Doxygen 1.4.5 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> </ul></div><h1>helpfulform.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 : helpfulform.cpp</span><a name="l00004"></a>00004 <span class="comment">* Part of : Help example</span><a name="l00005"></a>00005 <span class="comment">* Interface :</span><a name="l00006"></a>00006 <span class="comment">* Description :</span><a name="l00007"></a>00007 <span class="comment">* Version :</span><a name="l00008"></a>00008 <span class="comment">*</span><a name="l00009"></a>00009 <span class="comment">* Copyright (c) 2004 - 2006 Nokia Corporation.</span><a name="l00010"></a>00010 <span class="comment">* This material, including documentation and any related</span><a name="l00011"></a>00011 <span class="comment">* computer programs, is protected by copyright controlled by</span><a name="l00012"></a>00012 <span class="comment">* Nokia Corporation.</span><a name="l00013"></a>00013 <span class="comment">* ==============================================================================</span><a name="l00014"></a>00014 <span class="comment">*/</span><a name="l00015"></a>00015 <a name="l00016"></a>00016 <span class="comment">// INCLUDE FILES</span><a name="l00017"></a>00017 <span class="preprocessor">#include <AknAppUi.h></span><a name="l00018"></a>00018 <span class="preprocessor">#include <Avkon.rsg></span><a name="l00019"></a>00019 <span class="preprocessor">#include <eikmenup.h></span><a name="l00020"></a>00020 <a name="l00021"></a>00021 <span class="preprocessor">#include "HelpfulForm.h"</span><a name="l00022"></a>00022 <span class="preprocessor">#include "HelpExampleApplication.h"</span><a name="l00023"></a>00023 <span class="preprocessor">#include "HelpExample.hrh"</span><a name="l00024"></a>00024 <span class="preprocessor">#include "HelpExample.hlp.hrh"</span><a name="l00025"></a>00025 <a name="l00026"></a>00026 <span class="comment">// ============================ MEMBER FUNCTIONS ===============================</span><a name="l00027"></a>00027 <a name="l00028"></a>00028 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00029"></a>00029 <span class="comment">// CHelpfulForm::NewL()</span><a name="l00030"></a>00030 <span class="comment">// Two-phased constructor.</span><a name="l00031"></a>00031 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00032"></a>00032 <span class="comment">//</span><a name="l00033"></a><a class="code" href="class_c_helpful_form.html#23888945de0fdf30c3849bc1024e5283">00033</a> <a class="code" href="class_c_helpful_form.html">CHelpfulForm</a>* <a class="code" href="class_c_helpful_form.html#23888945de0fdf30c3849bc1024e5283">CHelpfulForm::NewL</a>( TInt aMenuResource )<a name="l00034"></a>00034 {<a name="l00035"></a>00035 <a class="code" href="class_c_helpful_form.html">CHelpfulForm</a>* <span class="keyword">self</span> = <a class="code" href="class_c_helpful_form.html#d5fb310d2415333ccfc40e43e633b2da">NewLC</a>( aMenuResource );<a name="l00036"></a>00036 CleanupStack::Pop( <span class="keyword">self</span> );<a name="l00037"></a>00037 <span class="keywordflow">return</span> <span class="keyword">self</span>;<a name="l00038"></a>00038 }<a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00041"></a>00041 <span class="comment">// CHelpfulForm::NewLC()</span><a name="l00042"></a>00042 <span class="comment">// Two-phased constructor.</span><a name="l00043"></a>00043 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00044"></a>00044 <span class="comment">//</span><a name="l00045"></a><a class="code" href="class_c_helpful_form.html#d5fb310d2415333ccfc40e43e633b2da">00045</a> <a class="code" href="class_c_helpful_form.html">CHelpfulForm</a>* <a class="code" href="class_c_helpful_form.html#d5fb310d2415333ccfc40e43e633b2da">CHelpfulForm::NewLC</a>( TInt aMenuResource )<a name="l00046"></a>00046 {<a name="l00047"></a>00047 <a class="code" href="class_c_helpful_form.html">CHelpfulForm</a>* <span class="keyword">self</span> = <span class="keyword">new</span> ( ELeave ) <a class="code" href="class_c_helpful_form.html">CHelpfulForm</a>();<a name="l00048"></a>00048 CleanupStack::PushL( <span class="keyword">self</span> );<a name="l00049"></a>00049 <span class="keyword">self</span>->ConstructL( aMenuResource );<a name="l00050"></a>00050 <span class="keywordflow">return</span> <span class="keyword">self</span>;<a name="l00051"></a>00051 }<a name="l00052"></a>00052 <a name="l00053"></a>00053 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00054"></a>00054 <span class="comment">// CHelpfulForm::ConstructL()</span><a name="l00055"></a>00055 <span class="comment">// Symbian 2nd phase constructor can leave.</span><a name="l00056"></a>00056 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00057"></a>00057 <span class="comment">//</span><a name="l00058"></a><a class="code" href="class_c_helpful_form.html#f763d6a76a5476d3863904b71b2bd874">00058</a> <span class="keywordtype">void</span> <a class="code" href="class_c_helpful_form.html#f763d6a76a5476d3863904b71b2bd874">CHelpfulForm::ConstructL</a>( TInt aMenuResource )<a name="l00059"></a>00059 {<a name="l00060"></a>00060 <span class="comment">// Ensure the base class construction is complete or some of the form's</span><a name="l00061"></a>00061 <span class="comment">// features will not work</span><a name="l00062"></a>00062 CAknForm::ConstructL( aMenuResource );<a name="l00063"></a>00063 }<a name="l00064"></a>00064 <a name="l00065"></a>00065 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00066"></a>00066 <span class="comment">// CHelpfulForm::GetHelpContext()</span><a name="l00067"></a>00067 <span class="comment">// Gets the control's help context. Returns a NULL context by default.</span><a name="l00068"></a>00068 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00069"></a>00069 <span class="comment">//</span><a name="l00070"></a><a class="code" href="class_c_helpful_form.html#e972525d2efcc9df7aa10de236a313e3">00070</a> <span class="keywordtype">void</span> <a class="code" href="class_c_helpful_form.html#e972525d2efcc9df7aa10de236a313e3">CHelpfulForm::GetHelpContext</a>( TCoeHelpContext& aContext )<span class="keyword"> const</span><a name="l00071"></a>00071 <span class="keyword"> </span>{<a name="l00072"></a>00072 <span class="comment">// Get any special help context for the control with focus, else a default</span><a name="l00073"></a>00073 aContext.iMajor = KUidHelpFile;<a name="l00074"></a>00074 <a name="l00075"></a>00075 <span class="keywordflow">switch</span> ( IdOfFocusControl() )<a name="l00076"></a>00076 {<a name="l00077"></a>00077 <span class="keywordflow">case</span> EHelpExampleEdwin1:<a name="l00078"></a>00078 <span class="comment">// Provide special help context if first control has focus</span><a name="l00079"></a>00079 aContext.iContext = KContextEdwin1;<a name="l00080"></a>00080 <span class="keywordflow">break</span>;<a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="keywordflow">case</span> EHelpExampleEdwin2:<a name="l00083"></a>00083 <span class="comment">// Provide special help context if second control has focus</span><a name="l00084"></a>00084 aContext.iContext = KContextEdwin2;<a name="l00085"></a>00085 <span class="keywordflow">break</span>;<a name="l00086"></a>00086 <a name="l00087"></a>00087 <span class="keywordflow">default</span>:<a name="l00088"></a>00088 <span class="comment">// Provide default help context for this dialog otherwise</span><a name="l00089"></a>00089 aContext.iContext = KContextHelpfulForm;<a name="l00090"></a>00090 <span class="keywordflow">break</span>;<a name="l00091"></a>00091 }<a name="l00092"></a>00092 }<a name="l00093"></a>00093 <a name="l00094"></a>00094 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00095"></a>00095 <span class="comment">// CHelpfulForm::ProcessCommandL</span><a name="l00096"></a>00096 <span class="comment">// Processes user commands.</span><a name="l00097"></a>00097 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00098"></a>00098 <span class="comment">//</span><a name="l00099"></a><a class="code" href="class_c_helpful_form.html#418904920ba3cf86d56d138ff3a2a083">00099</a> <span class="keywordtype">void</span> <a class="code" href="class_c_helpful_form.html#418904920ba3cf86d56d138ff3a2a083">CHelpfulForm::ProcessCommandL</a>( TInt aCommandId )<a name="l00100"></a>00100 {<a name="l00101"></a>00101 <span class="keywordflow">switch</span> ( aCommandId )<a name="l00102"></a>00102 {<a name="l00103"></a>00103 <span class="keywordflow">case</span> ELaunchHelpForContext :<a name="l00104"></a>00104 <span class="comment">// Pass it back to the AppUi to deal with</span><a name="l00105"></a>00105 iAvkonAppUi->HandleCommandL( aCommandId );<a name="l00106"></a>00106 <span class="keywordflow">break</span>;<a name="l00107"></a>00107 <span class="keywordflow">default</span> :<a name="l00108"></a>00108 <span class="keywordflow">break</span>;<a name="l00109"></a>00109 }<a name="l00110"></a>00110 <a name="l00111"></a>00111 <span class="comment">// Need to do this in all cases or menu does not disappear after</span><a name="l00112"></a>00112 <span class="comment">// a selection is made</span><a name="l00113"></a>00113 CAknForm::ProcessCommandL( aCommandId );<a name="l00114"></a>00114 }<a name="l00115"></a>00115 <a name="l00116"></a>00116 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00117"></a>00117 <span class="comment">// CHelpfulForm::DynInitMenuPaneL</span><a name="l00118"></a>00118 <span class="comment">// Dynamically initialises a menu pane.</span><a name="l00119"></a>00119 <span class="comment">// -----------------------------------------------------------------------------</span><a name="l00120"></a>00120 <span class="comment">//</span><a name="l00121"></a><a class="code" href="class_c_helpful_form.html#3ae77c2aed5e1270a13c14bd5aa415fe">00121</a> <span class="keywordtype">void</span> <a class="code" href="class_c_helpful_form.html#3ae77c2aed5e1270a13c14bd5aa415fe">CHelpfulForm::DynInitMenuPaneL</a>( TInt aResourceId, CEikMenuPane* aMenuPane )<a name="l00122"></a>00122 {<a name="l00123"></a>00123 CAknForm::DynInitMenuPaneL( aResourceId, aMenuPane );<a name="l00124"></a>00124 <span class="keywordflow">if</span> ( aResourceId == R_AVKON_FORM_MENUPANE )<a name="l00125"></a>00125 {<a name="l00126"></a>00126 <span class="comment">// Override the default form options. N/A in this case</span><a name="l00127"></a>00127 aMenuPane->SetItemDimmed( EAknFormCmdAdd, ETrue );<a name="l00128"></a>00128 aMenuPane->SetItemDimmed( EAknFormCmdSave, ETrue );<a name="l00129"></a>00129 aMenuPane->SetItemDimmed( EAknFormCmdLabel, ETrue );<a name="l00130"></a>00130 aMenuPane->SetItemDimmed( EAknFormCmdDelete, ETrue );<a name="l00131"></a>00131 }<a name="l00132"></a>00132 }<a name="l00133"></a>00133 <a name="l00134"></a>00134 <span class="comment">// End of File</span></pre></div><hr><table x-use-null-cells style="x-cell-content-align: top; width: 100%; border-spacing: 0px; border-spacing: 0px;" cellspacing=0 width=100%> <col style="width: 50%;"> <col style="width: 50%;"> <tr style="x-cell-content-align: top;" valign=top> <td style="width: 50%; padding-right: 10px; padding-left: 10px; border-right-style: None; border-left-style: None; border-top-style: None; border-bottom-style: None;" width=50%> <p style="font-family: Arial;"><small style="font-size: smaller;">⌨️ 快捷键说明
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