Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_sys_libs_2_clipboard_2_basics_2_basics_8cpp_source.html
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<h1>examples/SysLibs/Clipboard/Basics/Basics.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">// Example demonstrates a simple use of the clipboard.</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include <baclipb.h></span>
<a name="l00018"></a>00018
<a name="l00019"></a>00019 <span class="preprocessor">#include "CommonToResourceFilesEx.h"</span>
<a name="l00020"></a>00020 <span class="preprocessor">#include "Basics.h"</span>
<a name="l00021"></a>00021
<a name="l00022"></a>00022
<a name="l00025"></a>00025
<a name="l00026"></a>00026 <span class="comment">// Do the example(s)</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="keyword">static</span> <span class="keywordtype">void</span> doExampleL()
<a name="l00029"></a>00029 {
<a name="l00030"></a>00030 doCopyL();
<a name="l00031"></a>00031 doPasteL();
<a name="l00032"></a>00032 }
<a name="l00033"></a>00033
<a name="l00036"></a>00036
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keyword">static</span> <span class="keywordtype">void</span> doCopyL()
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KSomeText,<span class="stringliteral">"Some text"</span>);
<a name="l00041"></a>00041 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KContentOfTheCClassAObject,<span class="stringliteral">"Content of the CClassA object ..."</span>);
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="comment">// Construct an object of type CClassA</span>
<a name="l00044"></a>00044 <a class="code" href="class_c_class_a.html">CClassA</a>* item = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_a.html">CClassA</a>;
<a name="l00045"></a>00045 CleanupStack::PushL(item);
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">// Put some data into it</span>
<a name="l00048"></a>00048 item->iBuffer = KSomeText;
<a name="l00049"></a>00049 item->iXA = -1;
<a name="l00050"></a>00050 item->iYA = 2;
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="comment">// Show contents of the CClassA object</span>
<a name="l00053"></a>00053 doShow(KContentOfTheCClassAObject,item);
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="comment">// Construct the clipboard object and prepare the </span>
<a name="l00056"></a>00056 <span class="comment">// clipboard for writing</span>
<a name="l00057"></a>00057 CClipboard* cb = CClipboard::NewForWritingLC(fsSession);
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="comment">// Now put the object onto the clipboard and identify the data with</span>
<a name="l00060"></a>00060 <span class="comment">// the uid KExampleClipUid. In a real app, this would typically be </span>
<a name="l00061"></a>00061 <span class="comment">// done in response to a request from the user interface to cut or copy.</span>
<a name="l00062"></a>00062 <span class="comment">//</span>
<a name="l00063"></a>00063 <span class="comment">// Note that the value of KExampleClipUid is arbitrary and is used</span>
<a name="l00064"></a>00064 <span class="comment">// solely for the purpose oif demonstration</span>
<a name="l00065"></a>00065 RStoreWriteStream stream;
<a name="l00066"></a>00066 TStreamId stid = stream.CreateLC(cb->Store());
<a name="l00067"></a>00067 stream << *item;
<a name="l00068"></a>00068 stream.CommitL();
<a name="l00069"></a>00069 (cb->StreamDictionary()).AssignL(KExampleClipUid,stid);
<a name="l00070"></a>00070 CleanupStack::PopAndDestroy(); <span class="comment">//the stream</span>
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <span class="comment">// commit the clipboard - this writes the stream dictionary to the</span>
<a name="l00073"></a>00073 <span class="comment">// store as the root stream and commits all changes to the store </span>
<a name="l00074"></a>00074 cb->CommitL();
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="comment">// Delete the clipboard object - this closes the clipboard file store</span>
<a name="l00077"></a>00077 <span class="comment">// and delete the CClassA object</span>
<a name="l00078"></a>00078 CleanupStack::PopAndDestroy(2);
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00083"></a>00083
<a name="l00084"></a>00084 <span class="keyword">static</span> <span class="keywordtype">void</span> doPasteL()
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KNothingToPaste,<span class="stringliteral">"Nothing to paste"</span>);
<a name="l00087"></a>00087 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTheCClassAObjectAfterPastingIn,<span class="stringliteral">"The CClassA object after pasting in ..."</span>);
<a name="l00088"></a>00088
<a name="l00089"></a>00089 CClipboard* cb = NULL;
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="comment">// Construct the clipboard object and prepare the </span>
<a name="l00092"></a>00092 <span class="comment">// clipboard for reading.</span>
<a name="l00093"></a>00093 TRAPD(ret,cb=CClipboard::NewForReadingL(fsSession));
<a name="l00094"></a>00094 CleanupStack::PushL(cb);
<a name="l00095"></a>00095 <span class="keywordflow">if</span> (ret!=KErrNone)
<a name="l00096"></a>00096 {
<a name="l00097"></a>00097 doShow(KNothingToPaste,NULL);
<a name="l00098"></a>00098 User::Leave(ret);
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="comment">// Construct an object of type CClassA</span>
<a name="l00102"></a>00102 <a class="code" href="class_c_class_a.html">CClassA</a>* item = <span class="keyword">new</span> (ELeave) <a class="code" href="class_c_class_a.html">CClassA</a>;
<a name="l00103"></a>00103 CleanupStack::PushL(item);
<a name="l00104"></a>00104
<a name="l00105"></a>00105 <span class="comment">// Check whether there is a CClassA object on the clipboard</span>
<a name="l00106"></a>00106 TStreamId stid = (cb->StreamDictionary()).At(KExampleClipUid);
<a name="l00107"></a>00107 <span class="keywordflow">if</span> (stid == KNullStreamId)
<a name="l00108"></a>00108 {
<a name="l00109"></a>00109 doShow(KNothingToPaste,NULL);
<a name="l00110"></a>00110 User::Leave(0);
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113 <span class="comment">// Fetch the CClassA object from the clipboard</span>
<a name="l00114"></a>00114 RStoreReadStream stream;
<a name="l00115"></a>00115 stream.OpenLC(cb->Store(),stid);
<a name="l00116"></a>00116 stream >> *item;
<a name="l00117"></a>00117 CleanupStack::PopAndDestroy(); <span class="comment">// the stream</span>
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="comment">// Show contents of the CClassA object as pasted in</span>
<a name="l00120"></a>00120 <span class="comment">// from the clipboard.</span>
<a name="l00121"></a>00121 doShow(KTheCClassAObjectAfterPastingIn,item);
<a name="l00122"></a>00122
<a name="l00123"></a>00123 <span class="comment">// delete:</span>
<a name="l00124"></a>00124 <span class="comment">// 1. the CClassA object</span>
<a name="l00125"></a>00125 <span class="comment">// 2. the clipboard object</span>
<a name="l00126"></a>00126 CleanupStack::PopAndDestroy(2);
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128
<a name="l00131"></a>00131
<a name="l00132"></a>00132 <span class="keyword">static</span> <span class="keywordtype">void</span> doShow(<span class="keyword">const</span> TDesC& aHeading,<span class="keyword">const</span> <a class="code" href="class_c_class_a.html">CClassA</a>* anItem)
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KNewline,<span class="stringliteral">"\n"</span>);
<a name="l00135"></a>00135 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatS,<span class="stringliteral">"\n%S"</span>);
<a name="l00136"></a>00136 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatD,<span class="stringliteral">"\n%d"</span>);
<a name="l00137"></a>00137 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KFormatU,<span class="stringliteral">"\n%u"</span>);
<a name="l00138"></a>00138
<a name="l00139"></a>00139 console->Printf(KNewline);
<a name="l00140"></a>00140 console->Printf(aHeading);
<a name="l00141"></a>00141 <span class="keywordflow">if</span> (anItem)
<a name="l00142"></a>00142 {
<a name="l00143"></a>00143 console->Printf(KFormatS,&anItem->iBuffer);
<a name="l00144"></a>00144 console->Printf(KFormatD,anItem->iXA);
<a name="l00145"></a>00145 console->Printf(KFormatU,anItem->iYA);
<a name="l00146"></a>00146 console->Printf(KNewline);
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149
<a name="l00152"></a>00152
<a name="l00153"></a>00153 CClassA::CClassA()
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KDefault,<span class="stringliteral">"DEFAULT"</span>);
<a name="l00156"></a>00156 iBuffer = KDefault;
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="keywordtype">void</span> CClassA::ExternalizeL(RWriteStream& aStream)<span class="keyword"> const</span>
<a name="l00160"></a>00160 <span class="keyword"> </span>{
<a name="l00161"></a>00161 aStream << iBuffer;
<a name="l00162"></a>00162 aStream.WriteInt32L(iXA);
<a name="l00163"></a>00163 aStream.WriteUint32L(iYA);
<a name="l00164"></a>00164 }
<a name="l00165"></a>00165
<a name="l00166"></a>00166 <span class="keywordtype">void</span> CClassA::InternalizeL(RReadStream& aStream)
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 aStream >> iBuffer;
<a name="l00169"></a>00169 iXA = aStream.ReadInt32L();
<a name="l00170"></a>00170 iYA = aStream.ReadUint32L();
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173
<a name="l00174"></a>00174
<a name="l00175"></a>00175
<a name="l00176"></a>00176
<a name="l00177"></a>00177
</pre></div></div>
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