_rich_text_editor_container_8cpp-source.html

symbian OS中关于文本编辑功能的实现

<a name="l00256"></a>00256         
<a name="l00257"></a>00257 <span class="preprocessor">        #ifdef __SERIES60_3X__</span>
<a name="l00258"></a>00258 <span class="preprocessor"></span>        TRect ScrollBarRect = iRtEd-&gt;ScrollBarFrame()-&gt;VerticalScrollBar()-&gt;Rect();
<a name="l00259"></a>00259         <span class="comment">//In 3rd edition CEikRichTextEditor draw the view for the whole rect and</span>
<a name="l00260"></a>00260         <span class="comment">//the scrollbar doesn't show. That is a reason why CEikRichTextEditor Width() is</span>
<a name="l00261"></a>00261         <span class="comment">//rect.Width()-ScrollBarRect.Width()</span>
<a name="l00262"></a>00262         iRtEd-&gt;SetExtent(TPoint(0,StatusLineHeight), 
<a name="l00263"></a>00263                 TSize(rect.Width()-ScrollBarRect.Width(), rect.Height()-StatusLineHeight));
<a name="l00264"></a>00264 <span class="preprocessor">        #else</span>
<a name="l00265"></a>00265 <span class="preprocessor"></span>    iRtEd-&gt;SetExtent(TPoint(0,StatusLineHeight), 
<a name="l00266"></a>00266         TSize(rect.Width(), rect.Height()-StatusLineHeight));
<a name="l00267"></a>00267 <span class="preprocessor">    #endif</span>
<a name="l00268"></a>00268 <span class="preprocessor"></span>    }
<a name="l00269"></a>00269 
<a name="l00270"></a>00270 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00271"></a>00271 <span class="comment">// CRTEContainer::CountComponentControls() const</span>
<a name="l00272"></a>00272 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00273"></a>00273 <span class="comment">//</span>
<a name="l00274"></a><a class="code" href="class_c_r_t_e_container.html#195be64c0e5b9f91ce87699e499af01c">00274</a> TInt <a class="code" href="class_c_r_t_e_container.html#195be64c0e5b9f91ce87699e499af01c">CRTEContainer::CountComponentControls</a>()<span class="keyword"> const</span>
<a name="l00275"></a>00275 <span class="keyword">    </span>{
<a name="l00276"></a>00276     <span class="keywordflow">return</span> 2; <span class="comment">// return number of controls inside this container</span>
<a name="l00277"></a>00277     }
<a name="l00278"></a>00278 
<a name="l00279"></a>00279 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00280"></a>00280 <span class="comment">// CRTEContainer::ComponentControl(TInt aIndex) const</span>
<a name="l00281"></a>00281 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00282"></a>00282 <span class="comment">//</span>
<a name="l00283"></a><a class="code" href="class_c_r_t_e_container.html#c1d1ba8d1c19e939c47fb73d50cb5432">00283</a> CCoeControl* <a class="code" href="class_c_r_t_e_container.html#c1d1ba8d1c19e939c47fb73d50cb5432">CRTEContainer::ComponentControl</a>(TInt aIndex)<span class="keyword"> const</span>
<a name="l00284"></a>00284 <span class="keyword">    </span>{
<a name="l00285"></a>00285     <span class="keywordflow">switch</span> ( aIndex )
<a name="l00286"></a>00286         {
<a name="l00287"></a>00287         <span class="keywordflow">case</span> 0:
<a name="l00288"></a>00288                         <span class="keywordflow">return</span> <a class="code" href="class_c_r_t_e_container.html#714a273f76116be110f7a0bf8e2e6236">iRtEd</a>;
<a name="l00289"></a>00289                 <span class="keywordflow">case</span> 1:
<a name="l00290"></a>00290                         <span class="keywordflow">return</span> <a class="code" href="class_c_r_t_e_container.html#fabd5bcb3685cab3910529b0f983f726">iStatusLine</a>;
<a name="l00291"></a>00291         <span class="keywordflow">default</span>:
<a name="l00292"></a>00292             <span class="keywordflow">return</span> NULL;
<a name="l00293"></a>00293         }
<a name="l00294"></a>00294     }
<a name="l00295"></a>00295 
<a name="l00296"></a>00296 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00297"></a>00297 <span class="comment">// CRTEContainer::Draw(const TRect&amp; aRect) const</span>
<a name="l00298"></a>00298 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00299"></a>00299 <span class="comment">//</span>
<a name="l00300"></a><a class="code" href="class_c_r_t_e_container.html#67f946ca7848ec78de4961c5bcefdb72">00300</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_t_e_container.html#67f946ca7848ec78de4961c5bcefdb72">CRTEContainer::Draw</a>(<span class="keyword">const</span> TRect&amp; aRect)<span class="keyword"> const</span>
<a name="l00301"></a>00301 <span class="keyword">    </span>{
<a name="l00302"></a>00302     CWindowGc&amp; gc = SystemGc();
<a name="l00303"></a>00303     gc.SetPenStyle(CGraphicsContext::ENullPen);
<a name="l00304"></a>00304     gc.SetBrushColor(KRgbWhite);
<a name="l00305"></a>00305     gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
<a name="l00306"></a>00306     gc.DrawRect(aRect);
<a name="l00307"></a>00307     }
<a name="l00308"></a>00308 
<a name="l00309"></a>00309 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00310"></a>00310 <span class="comment">// OfferKeyEventL() </span>
<a name="l00311"></a>00311 <span class="comment">// Distribute the key event to the Editor</span>
<a name="l00312"></a>00312 <span class="comment">// ---------------------------------------------------------</span>
<a name="l00313"></a>00313 <span class="comment">//</span>
<a name="l00314"></a><a class="code" href="class_c_r_t_e_container.html#6775621e6d3ce05d6685555c939c7706">00314</a> TKeyResponse <a class="code" href="class_c_r_t_e_container.html#6775621e6d3ce05d6685555c939c7706">CRTEContainer::OfferKeyEventL</a>(<span class="keyword">const</span> TKeyEvent&amp; aKeyEvent,TEventCode aType)
<a name="l00315"></a>00315         {
<a name="l00316"></a>00316         <span class="keywordflow">if</span> (<a class="code" href="class_c_r_t_e_container.html#714a273f76116be110f7a0bf8e2e6236">iRtEd</a>-&gt;IsFocused())
<a name="l00317"></a>00317                 {
<a name="l00318"></a>00318                 <span class="keywordflow">return</span> <a class="code" href="class_c_r_t_e_container.html#714a273f76116be110f7a0bf8e2e6236">iRtEd</a>-&gt;OfferKeyEventL(aKeyEvent, aType); 
<a name="l00319"></a>00319                 }
<a name="l00320"></a>00320         <span class="keywordflow">else</span>
<a name="l00321"></a>00321                 {
<a name="l00322"></a>00322                 <span class="keywordflow">return</span> EKeyWasNotConsumed;
<a name="l00323"></a>00323                 }
<a name="l00324"></a>00324         }
<a name="l00325"></a>00325 
<a name="l00326"></a>00326 <span class="comment">// ----------------------------------------------------</span>
<a name="l00327"></a>00327 <span class="comment">// SetAlignment(CParaFormat::TAlignment aAlignment)</span>
<a name="l00328"></a>00328 <span class="comment">//</span>
<a name="l00329"></a>00329 <span class="comment">// Alignment formatting apply to the actual paragraph</span>
<a name="l00330"></a>00330 <span class="comment">// If there is only one, it apply for the whole text</span>
<a name="l00331"></a>00331 <span class="comment">//</span>
<a name="l00332"></a>00332 <span class="comment">// We expect one of the following input parameter value:</span>
<a name="l00333"></a>00333 <span class="comment">//      CParaFormat::ELeftAlign</span>
<a name="l00334"></a>00334 <span class="comment">//      CParaFormat::ECenterAlign</span>
<a name="l00335"></a>00335 <span class="comment">//      CParaFormat::ERightAlign</span>
<a name="l00336"></a>00336 <span class="comment">//</span>
<a name="l00337"></a>00337 <span class="comment">// ----------------------------------------------------</span>
<a name="l00338"></a><a class="code" href="class_c_r_t_e_container.html#618ba05ed3587bd0f47307bde788917b">00338</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_t_e_container.html#618ba05ed3587bd0f47307bde788917b">CRTEContainer::SetAlignment</a>(CParaFormat::TAlignment aAlignment)
<a name="l00339"></a>00339         {
<a name="l00340"></a>00340         CParaFormat     paraFormat;
<a name="l00341"></a>00341         TParaFormatMask paraFormatMask;
<a name="l00342"></a>00342 
<a name="l00343"></a>00343         paraFormatMask.SetAttrib(EAttAlignment);    <span class="comment">// set the mask</span>
<a name="l00344"></a>00344         paraFormat.iHorizontalAlignment = aAlignment;
<a name="l00345"></a>00345 
<a name="l00346"></a>00346         <a class="code" href="class_c_r_t_e_container.html#714a273f76116be110f7a0bf8e2e6236">iRtEd</a>-&gt;ApplyParaFormatL(&amp;paraFormat, paraFormatMask);
<a name="l00347"></a>00347         
<a name="l00348"></a>00348         <a class="code" href="class_c_r_t_e_container.html#38bc46ca50d704160d45a75119a95774">Echo</a>(R_TYPE_DIALOG_TBUF_INDICATOR_ALIGNMENT);
<a name="l00349"></a>00349         }
<a name="l00350"></a>00350 
<a name="l00351"></a>00351 <span class="comment">// ----------------------------------------------------</span>
<a name="l00352"></a>00352 <span class="comment">// SetSelectionL(TInt aCursorPos,TInt aAnchorPos)</span>
<a name="l00353"></a>00353 <span class="comment">// Select a text in the Rich text editor</span>
<a name="l00354"></a>00354 <span class="comment">// ----------------------------------------------------</span>
<a name="l00355"></a><a class="code" href="class_c_r_t_e_container.html#b672064cc9e9f157b51250c102d3e07b">00355</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_t_e_container.html#b672064cc9e9f157b51250c102d3e07b">CRTEContainer::SetSelectionL</a>(TInt aCursorPos,TInt aAnchorPos)
<a name="l00356"></a>00356         {
<a name="l00357"></a>00357         <a class="code" href="class_c_r_t_e_container.html#714a273f76116be110f7a0bf8e2e6236">iRtEd</a>-&gt;SetSelectionL(aCursorPos,aAnchorPos);
<a name="l00358"></a>00358         }
<a name="l00359"></a>00359 
<a name="l00360"></a>00360 <span class="comment">// ----------------------------------------------------</span>
<a name="l00361"></a>00361 <span class="comment">// SetCharacterBIUAttrib(CEikGlobalTextEditor::TFontStyleFlags aFontFlags)</span>
<a name="l00362"></a>00362 <span class="comment">// </span>
<a name="l00363"></a>00363 <span class="comment">// Character formating apply for the selected text</span>
<a name="l00364"></a>00364 <span class="comment">// If nothing is selected it apply to actual word</span>
<a name="l00365"></a>00365 <span class="comment">// We expect one of the following input parameter value:</span>
<a name="l00366"></a>00366 <span class="comment">//      CEikGlobalTextEditor::EBold</span>
<a name="l00367"></a>00367 <span class="comment">//      CEikGlobalTextEditor::EItalic</span>
<a name="l00368"></a>00368 <span class="comment">//      CEikGlobalTextEditor::EUnderline</span>
<a name="l00369"></a>00369 <span class="comment">// ----------------------------------------------------</span>
<a name="l00370"></a>00370 
<a name="l00371"></a><a class="code" href="class_c_r_t_e_container.html#5b5b79cc28c6a63b29b8858eb744f15d">00371</a> <span class="keywordtype">void</span> <a class="code" href="class_c_r_t_e_container.html#5b5b79cc28c6a63b29b8858eb744f15d">CRTEContainer::SetCharacterBIUAttribL</a>(CEikGlobalTextEditor::TFontStyleFlags aFontFlags)
<a name="l00372"></a>00372         {
<a name="l00373"></a>00373         <a class="code" href="class_c_r_t_e_container.html#714a273f76116be110f7a0bf8e2e6236">iRtEd</a>-&gt;BoldItalicUnderlineEventL(aFontFlags);
<a name="l00374"></a>00374         <a class="code" href="class_c_r_t_e_container.html#38bc46ca50d704160d45a75119a95774">Echo</a>(R_TYPE_DIALOG_TBUF_INDICATOR_CHARACTER_FORMAT);
<a name="l00375"></a>00375         }
<a name="l00376"></a>00376         
<a name="l00377"></a>00377 <span class="preprocessor">#ifdef __SERIES60_3X__</span>
<a name="l00378"></a>00378 <span class="preprocessor"></span><span class="comment">// ----------------------------------------------------</span>
<a name="l00379"></a>00379 <span class="comment">// SetFont(TInt aFontId)</span>
<a name="l00380"></a>00380 <span class="comment">// Change the text's font in the editor </span>
<a name="l00381"></a>00381 <span class="comment">// to the one specified as input parameter for the function </span>
<a name="l00382"></a>00382 <span class="comment">// ----------------------------------------------------</span>
<a name="l00383"></a>00383 <span class="keywordtype">void</span> <a class="code" href="class_c_r_t_e_container.html#061e324637a0ecbb00f0c822194240f2">CRTEContainer::SetFont</a>(TInt aFontId)
<a name="l00384"></a>00384         {       
<a name="l00385"></a>00385         <span class="comment">// Get a logical font to base my font on:</span>
<a name="l00386"></a>00386         <span class="keyword">const</span> CFont* logicalFont = AknLayoutUtils::FontFromId(aFontId);
<a name="l00387"></a>00387         <span class="comment">// Extract font information</span>
<a name="l00388"></a>00388         TFontSpec fontspec = logicalFont-&gt;FontSpecInTwips();
<a name="l00389"></a>00389 
<a name="l00390"></a>00390     TCharFormat charFormat(fontspec.iTypeface.iName, fontspec.iHeight);
<a name="l00391"></a>00391     TCharFormatMask charFormatMask;
<a name="l00392"></a>00392