wg__editbox_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00434                               <span class="keywordflow">if</span> (static_cast&lt;unsigned int&gt;(m_SelStart) &lt;= sBuffer.length())
00435                               {
00436                                    <span class="keywordflow">if</span> (pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m1">Modifiers</a> &amp; KMOD_SHIFT)
00437                                    {
00438                                         <span class="keywordflow">if</span> (pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m1">Modifiers</a> &amp; KMOD_CTRL)
00439                                         {
00440                                              <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pos = static_cast&lt;unsigned int&gt;(sBuffer.find(<span class="stringliteral">" "</span>, <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> + <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a>));
00441                                              <span class="keywordflow">if</span> (pos != std::string::npos)
00442                                              {
00443                                                   <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = (pos - <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>) + 1;
00444                                              }
00445                                              <span class="keywordflow">else</span>
00446                                              {
00447                                                   <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = static_cast&lt;int&gt;(sBuffer.length()) - <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00448                                              }
00449                                         }
00450                                         <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> + <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> &lt; sBuffer.length())
00451                                         {
00452                                              <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a>++; <span class="comment">//Selecting, one character at a time, increase the selection length by one.</span>
00453                                         }
00454                                    }
00455                                    <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> == 0 &amp;&amp; static_cast&lt;unsigned int&gt;(m_SelStart) &lt; sBuffer.length())
00456                                    {
00457                                         <span class="comment">//With the ctrl modifier used, we look for the next instance of a space.</span>
00458                                         <span class="comment">// If we find one, we set the cursor position to that location.</span>
00459                                         <span class="comment">// If we can't find one, we set the cursor position to the end of the string.</span>
00460                                         <span class="comment">// If we don't have the ctrl modifier, then we just incriment the cursor position by one character</span>
00461                                         <span class="keywordflow">if</span> (pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m1">Modifiers</a> &amp; KMOD_CTRL)
00462                                         {
00463                                              <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pos = static_cast&lt;unsigned int&gt;(sBuffer.find(<span class="stringliteral">" "</span>, <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> + 1));
00464                                              <span class="keywordflow">if</span> (pos != std::string::npos)
00465                                              {
00466                                                   <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = pos + 1;
00467                                              }
00468                                              <span class="keywordflow">else</span>
00469                                              {
00470                                                   <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = static_cast&lt;unsigned int&gt;(sBuffer.length());
00471                                              }
00472                                         }
00473                                         <span class="keywordflow">else</span>
00474                                         {
00475                                              ++<a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>; <span class="comment">//We don't have anything selected, so we'll just incriment the start position</span>
00476                                         }
00477                                    }
00478                                    <span class="keywordflow">else</span>
00479                                    {
00480                                         <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> &gt; 0)
00481                                         {
00482                                              <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> + <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a>; <span class="comment">//Reset cursor position to the end of the selection</span>
00483                                         }
00484                                         <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = 0; <span class="comment">//Set selection length to zero</span>
00485                                    }
00486                               }
00487                               <span class="keywordflow">break</span>;
00488                          <span class="keywordflow">case</span> SDLK_END:
00489                               <span class="keywordflow">if</span> (pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m1">Modifiers</a> &amp; KMOD_SHIFT)
00490                               {
00491                                    <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = static_cast&lt;unsigned int&gt;(sBuffer.length()) - <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00492                               }
00493                               <span class="keywordflow">else</span>
00494                               {
00495                                    <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = 0;
00496                                    <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = static_cast&lt;unsigned int&gt;(sBuffer.length());
00497                               }
00498                               <span class="keywordflow">break</span>;
00499                          <span class="keywordflow">case</span> SDLK_HOME:
00500                               <span class="keywordflow">if</span> (pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m1">Modifiers</a> &amp; KMOD_SHIFT)
00501                               {
00502                                    <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00503                                    <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = 0;
00504                               }
00505                               <span class="keywordflow">else</span>
00506                               {
00507                                    <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = 0;
00508                                    <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = 0;
00509                               }
00510                               <span class="keywordflow">break</span>;
00511                          <span class="keywordflow">default</span>:
00512                               <span class="keywordflow">if</span> (pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m3">Unicode</a>)
00513                               {
00514                                    <span class="keywordflow">if</span> ((pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m3">Unicode</a> &amp; 0xFF80) == 0)
00515                                    {
00516                                         <a class="code" href="classwGui_1_1CEditBox.html#b0">SelDelete</a>(&amp;sBuffer);
00517                                         sBuffer.insert(<a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>++, 1, static_cast&lt;char&gt;(pKeyboardMessage-&gt;<a class="code" href="classwGui_1_1CKeyboardMessage.html#m3">Unicode</a> &amp; 0x7F));
00518                                    }
00519                                    <span class="keywordflow">else</span>
00520                                    {
00521                                         Trace(<span class="stringliteral">"CEditBox::HandleMessage : CEditBox can't handle Unicode characters yet."</span>);
00522                                    }
00523                               }
00524                               <span class="keywordflow">break</span>;
00525                          }
00526 
00527                          <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CWindow.html#n0">m_sWindowText</a> != sBuffer)
00528                          {
00529                               CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> TStringMessage(CMessage::CTRL_VALUECHANGE, <a class="code" href="classwGui_1_1CWindow.html#n4">m_pParentWindow</a>, <span class="keyword">this</span>, sBuffer));
00530                          }
00531                          <a class="code" href="classwGui_1_1CWindow.html#n0">m_sWindowText</a> = sBuffer;
00532                          CWindow::SetWindowText(sBuffer);
00533 
00534                          std::auto_ptr&lt;CRenderedString&gt; pRenderedString(<span class="keyword">new</span> <a class="code" href="classwGui_1_1CRenderedString.html">CRenderedString</a>(
00535                               <a class="code" href="classwGui_1_1CEditBox.html#n0">m_pFontEngine</a>, sBuffer, CRenderedString::VALIGN_NORMAL, CRenderedString::HALIGN_LEFT));
00536 
00537                          <a class="code" href="classwGui_1_1CEditBox.html#n1">m_pRenderedString</a> = pRenderedString;
00538                          <a class="code" href="classwGui_1_1CWindow.html#a23">StartDrawProc</a>();
00539                     }
00540                     <span class="keywordflow">break</span>;
00541                }
00542           <span class="keywordflow">default</span> :
00543                bHandled = CWindow::HandleMessage(pMessage);
00544                <span class="keywordflow">break</span>;
00545           }
00546      }
00547 
00548      <span class="keywordflow">return</span> bHandled;
00549 }
00550 
00551 
<a name="l00552"></a><a class="code" href="classwGui_1_1CEditBox.html#b0">00552</a> <span class="keywordtype">void</span> CEditBox::SelDelete(std::string* psString)
00553 {
00554      <span class="comment">//This means we've selected something, therefore, should replace it</span>
00555      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> &gt; 0)
00556      {
00557           <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> SelStartNorm=0, SelLenNorm=0;
00558           <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> &lt; 0)
00559           {
00560                SelStartNorm   = <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> + <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00561                SelLenNorm = abs(<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a>);
00562           }
00563           <span class="keywordflow">else</span>
00564           {
00565                SelStartNorm   = <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00566                SelLenNorm = <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a>;
00567           }
00568           psString-&gt;erase(SelStartNorm, SelLenNorm);
00569           <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = 0;
00570      }
00571 }
00572 
00573 }
</pre></div><hr><address style="align: right;"><small>Generated on Sat Oct 25 12:43:22 2003 for wGui by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border=0 
width=110 height=53></a>1.2.18 </small></address>
</body>
</html>