_ocr_example_image_view_8cpp-source.html

基于symbian 平台 ocr 示例程序

<a name="l00109"></a>00109         {
<a name="l00110"></a>00110         OCREngineFactory::ReleaseOCREngine(<a class="code" href="class_c_ocr_example_image_view.html#c22846eecaea51cfb97699603e4227b3">iEngine</a>);
<a name="l00111"></a>00111         }
<a name="l00112"></a>00112     <span class="keyword">delete</span> <a class="code" href="class_c_ocr_example_image_view.html#56132cb68e64726ad0658571e44e9644">iHandler</a>;
<a name="l00113"></a>00113     <span class="keyword">delete</span> <a class="code" href="class_c_ocr_example_image_view.html#9eb6fa3188758350a81b83400892e787">iBitMap</a>;
<a name="l00114"></a>00114     <span class="keyword">delete</span> <a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#ea6eefa2a3b0315b12fbb5ab0532a849">iScaledBitMap</a>;
<a name="l00115"></a>00115     <span class="keyword">delete</span> <a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#3beeffcd97169ea8291ae2fffec377e8">iCrosshair</a>;
<a name="l00116"></a>00116     <a class="code" href="class_c_ocr_example_image_view.html#7b548225db36c87401243f1080bbd0e8">iFs</a>.Close();
<a name="l00117"></a>00117     }
<a name="l00118"></a>00118 
<a name="l00119"></a>00119 
<a name="l00120"></a>00120 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00121"></a>00121 <span class="comment">// COcrExampleImageView::Id</span>
<a name="l00122"></a>00122 <span class="comment">// From CAknView, returns Uid of View</span>
<a name="l00123"></a>00123 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00124"></a>00124 <span class="comment">//</span>
<a name="l00125"></a><a class="code" href="class_c_ocr_example_image_view.html#a9048c3ff4f288da47ab9b2de1833749">00125</a> TUid <a class="code" href="class_c_ocr_example_image_view.html#a9048c3ff4f288da47ab9b2de1833749">COcrExampleImageView::Id</a>()<span class="keyword"> const</span>
<a name="l00126"></a>00126 <span class="keyword">    </span>{
<a name="l00127"></a>00127     <span class="keywordflow">return</span> KUidImageView;
<a name="l00128"></a>00128     }
<a name="l00129"></a>00129 
<a name="l00130"></a>00130 
<a name="l00131"></a>00131 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00132"></a>00132 <span class="comment">// COcrExampleImageView::HandleCommandL</span>
<a name="l00133"></a>00133 <span class="comment">// From MEikMenuObserver delegate commands from the menu</span>
<a name="l00134"></a>00134 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00135"></a>00135 <span class="comment">//</span>
<a name="l00136"></a><a class="code" href="class_c_ocr_example_image_view.html#a682d228622cea7790645ce10f591242">00136</a> <span class="keywordtype">void</span> <a class="code" href="class_c_ocr_example_image_view.html#a682d228622cea7790645ce10f591242">COcrExampleImageView::HandleCommandL</a>(TInt aCommand)
<a name="l00137"></a>00137     {
<a name="l00138"></a>00138     <span class="keywordflow">switch</span> (aCommand)
<a name="l00139"></a>00139         {
<a name="l00140"></a>00140         <span class="keywordflow">case</span> EOcrExampleCmdOpenFile:
<a name="l00141"></a>00141             <a class="code" href="class_c_ocr_example_image_view.html#2003512dd8696219849f58d8ae1e3c37">OpenImageL</a>();
<a name="l00142"></a>00142                 <span class="keywordflow">break</span>;
<a name="l00143"></a>00143 
<a name="l00144"></a>00144         <span class="keywordflow">case</span> EOcrExampleCmdAnalyzeImage:
<a name="l00145"></a>00145             <a class="code" href="class_c_ocr_example_image_view.html#deb0a73c2e8490684e18cea6caa9af23">AnalyzeImageLayoutL</a>();
<a name="l00146"></a>00146             <span class="keywordflow">break</span>;
<a name="l00147"></a>00147 
<a name="l00148"></a>00148         <span class="keywordflow">case</span> EOcrExampleCmdRecognizeImage:
<a name="l00149"></a>00149             <a class="code" href="class_c_ocr_example_image_view.html#72da075f30fbcf471e8af996ae74f499">RecognizeImageL</a>();
<a name="l00150"></a>00150             <span class="keywordflow">break</span>;
<a name="l00151"></a>00151 
<a name="l00152"></a>00152         <span class="keywordflow">case</span> EOcrExampleCmdRecognizeBlock:
<a name="l00153"></a>00153             <a class="code" href="class_c_ocr_example_image_view.html#a31d77d219f1dc7b797c06d4356fefd9">RecognizeBlockL</a>();
<a name="l00154"></a>00154             <span class="keywordflow">break</span>;
<a name="l00155"></a>00155 
<a name="l00156"></a>00156         <span class="keywordflow">case</span> EOcrExampleCmdRecognizeRegion:
<a name="l00157"></a>00157             <a class="code" href="class_c_ocr_example_image_view.html#fac0e83d0111d471ebf4deffd9f87bc2">RecognizeSpecialRegionL</a>();
<a name="l00158"></a>00158             <span class="keywordflow">break</span>;
<a name="l00159"></a>00159 
<a name="l00160"></a>00160         <span class="keywordflow">case</span> EOcrExampleCmdToggleCrosshair:
<a name="l00161"></a>00161             <span class="keywordflow">if</span> (<a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#3beeffcd97169ea8291ae2fffec377e8">iCrosshair</a>)
<a name="l00162"></a>00162                 {
<a name="l00163"></a>00163                 <span class="keyword">delete</span> <a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#3beeffcd97169ea8291ae2fffec377e8">iCrosshair</a>;
<a name="l00164"></a>00164                 <a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#3beeffcd97169ea8291ae2fffec377e8">iCrosshair</a> = 0;
<a name="l00165"></a>00165                 }
<a name="l00166"></a>00166             <span class="keywordflow">else</span>
<a name="l00167"></a>00167                 {
<a name="l00168"></a>00168                 <span class="comment">// note! not leaving new. if it fails, it fails.</span>
<a name="l00169"></a>00169                 <a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#3beeffcd97169ea8291ae2fffec377e8">iCrosshair</a> = <span class="keyword">new</span> TRect;
<a name="l00170"></a>00170                 }
<a name="l00171"></a>00171             <a class="code" href="class_c_ocr_example_image_view.html#b7e54289c236dbd01581864006b4069f">iCrosshairEnabled</a> = (<a class="code" href="class_c_ocr_example_image_view.html#e72899bf23845a10c6b7559c2e896baa">iData</a>.<a class="code" href="class_t_screen_update_data.html#3beeffcd97169ea8291ae2fffec377e8">iCrosshair</a> != NULL);
<a name="l00172"></a>00172             <a class="code" href="class_c_ocr_example_image_view.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>-&gt;DrawNow();
<a name="l00173"></a>00173             <span class="keywordflow">break</span>;
<a name="l00174"></a>00174 
<a name="l00175"></a>00175         <span class="keywordflow">case</span> EOcrExampleCmdSettings:
<a name="l00176"></a>00176             AppUi()-&gt;ActivateLocalViewL(KUidSettingsView);
<a name="l00177"></a>00177             <span class="keywordflow">break</span>;
<a name="l00178"></a>00178 
<a name="l00179"></a>00179         <span class="keywordflow">default</span>:
<a name="l00180"></a>00180             AppUi()-&gt;HandleCommandL( aCommand );
<a name="l00181"></a>00181             <span class="keywordflow">break</span>;
<a name="l00182"></a>00182         }
<a name="l00183"></a>00183     }
<a name="l00184"></a>00184 
<a name="l00185"></a>00185 
<a name="l00186"></a>00186 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00187"></a>00187 <span class="comment">// COcrExampleImageView::DoActivateL</span>
<a name="l00188"></a>00188 <span class="comment">// Activate this view</span>
<a name="l00189"></a>00189 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00190"></a>00190 <span class="comment">//</span>
<a name="l00191"></a><a class="code" href="class_c_ocr_example_image_view.html#366b9bdc3feb98c2fa8b54b12561be7f">00191</a> <span class="keywordtype">void</span> <a class="code" href="class_c_ocr_example_image_view.html#366b9bdc3feb98c2fa8b54b12561be7f">COcrExampleImageView::DoActivateL</a>( <span class="keyword">const</span> TVwsViewId&amp; <span class="comment">/* aPrevViewId */</span>,
<a name="l00192"></a>00192                                         TUid <span class="comment">/*aCustomMessageId*/</span>,
<a name="l00193"></a>00193                                         <span class="keyword">const</span> TDesC8&amp; <span class="comment">/*aCustomMessage*/</span> )
<a name="l00194"></a>00194     {
<a name="l00195"></a>00195     ASSERT(<a class="code" href="class_c_ocr_example_image_view.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>);
<a name="l00196"></a>00196     <a class="code" href="class_c_ocr_example_image_view.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>-&gt;MakeVisible(ETrue);
<a name="l00197"></a>00197     }
<a name="l00198"></a>00198 
<a name="l00199"></a>00199 
<a name="l00200"></a>00200 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00201"></a>00201 <span class="comment">// COcrExampleImageView::DoDeactivate</span>
<a name="l00202"></a>00202 <span class="comment">// Deactivate this view</span>
<a name="l00203"></a>00203 <span class="comment">// Note! The container is not deleted, because we want to maintain existing</span>
<a name="l00204"></a>00204 <span class="comment">// view until re-activated.</span>
<a name="l00205"></a>00205 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00206"></a>00206 <span class="comment">//</span>
<a name="l00207"></a><a class="code" href="class_c_ocr_example_image_view.html#8dc3833be5508368363dce246e04a18f">00207</a> <span class="keywordtype">void</span> <a class="code" href="class_c_ocr_example_image_view.html#8dc3833be5508368363dce246e04a18f">COcrExampleImageView::DoDeactivate</a>()
<a name="l00208"></a>00208     {
<a name="l00209"></a>00209     <span class="keywordflow">if</span> (<a class="code" href="class_c_ocr_example_image_view.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>)
<a name="l00210"></a>00210         {
<a name="l00211"></a>00211         <a class="code" href="class_c_ocr_example_image_view.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>-&gt;MakeVisible(EFalse);
<a name="l00212"></a>00212         }
<a name="l00213"></a>00213     }
<a name="l00214"></a>00214 
<a name="l00215"></a>00215 
<a name="l00216"></a>00216 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00217"></a>00217 <span class="comment">// COcrExampleImageView::DynInitMenuPaneL</span>
<a name="l00218"></a>00218 <span class="comment">// Dynamically customize menu items</span>
<a name="l00219"></a>00219 <span class="comment">// ---------------------------------------------------------------------------</span>
<a name="l00220"></a>00220 <span class="comment">//</span>
<a name="l00221"></a><a class="code" href="class_c_ocr_example_image_view.html#3ae77c2aed5e1270a13c14bd5aa415fe">00221</a> <span class="keywordtype">void</span> <a class="code" href="class_c_ocr_example_image_view.html#3ae77c2aed5e1270a13c14bd5aa415fe">COcrExampleImageView::DynInitMenuPaneL</a>( TInt aResourceId,
<a name="l00222"></a>00222                                              CEikMenuPane* aMenuPane )
<a name="l00223"></a>00223     {
<a name="l00224"></a>00224     <span class="keywordflow">if</span> ( aResourceId == R_IMAGE_VIEW_MENU )
<a name="l00225"></a>00225         {
<a name="l00226"></a>00226         aMenuPane-&gt;SetItemDimmed( EOcrExampleCmdAnalyzeImage,
<a name="l00227"></a>00227                                   ((<a class="code" href="class_c_ocr_example_image_view.html#63052a309baec315239b427aa7647b76">iState</a> == <a class="code" href="class_c_ocr_example_image_view.html#8e0e9e3030ee220d737a3e9e733390ec553253ec36b6a826ce4923c5dcf95a12">EInit</a>) || <a class="code" href="class_c_ocr_example_image_view.html#b7e54289c236dbd01581864006b4069f">iCrosshairEnabled</a>));
<a name="l00228"></a>00228         aMenuPane-&gt;SetItemDimmed( EOcrExampleCmdRecognizeImage,
<a name="l00229"></a>00229                                   ((<a class="code" href="class_c_ocr_example_image_view.html#63052a309baec315239b427aa7647b76">iState</a> != <a class="code" href="class_c_ocr_example_image_view.html#8e0e9e3030ee220d737a3e9e733390ec9a6601df59f457cc199cb4794fdbbd7b">EImageAnalyzed</a>) || <a class="code" href="class_c_ocr_example_image_view.html#b7e54289c236dbd01581864006b4069f">iCrosshairEnabled</a>));
<a name="l00230"></a>00230         aMenuPane-&gt;SetItemDimmed( EOcrExampleCmdToggleCrosshair,
<a name="l00231"></a>00231                                   (<a class="code" href="class_c_ocr_example_image_view.html#63052a309baec315239b427aa7647b76">iState</a> == <a class="code" href="class_c_ocr_example_image_view.html#8e0e9e3030ee220d737a3e9e733390ec553253ec36b6a826ce4923c5dcf95a12">EInit</a>));
<a name="l00232"></a>00232         aMenuPane-&gt;SetItemDimmed( EOcrExampleCmdRecognizeBlockMenu,
<a name="l00233"></a>00233                                   ((<a class="code" href="class_c_ocr_example_image_view.html#63052a309baec315239b427aa7647b76">iState</a> == <a class="code" href="class_c_ocr_example_image_view.html#8e0e9e3030ee220d737a3e9e733390ec553253ec36b6a826ce4923c5dcf95a12">EInit</a>) || (!<a class="code" href="class_c_ocr_example_image_view.html#b7e54289c236dbd01581864006b4069f">iCrosshairEnabled</a>)));
<a name="l00234"></a>00234         }
<a name="l00235"></a>00235     }
<a name="l00236"></a>00236