wg__editbox_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00140                SelStartNorm  = <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00141           }
00142 
00143           <span class="comment">// Handle scrolling</span>
00144           <span class="comment">// Patch  for "Scrolling while selecting to left in editbox" by Oldrich Dlouhy</span>
00145           <span class="keywordflow">if</span> (! <a class="code" href="classwGui_1_1CEditBox.html#n8">m_bMouseDown</a>)
00146           {
00147                <span class="keywordtype">int</span> RightBorder = CharRects[SelStartNorm + SelLenNorm - 1].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>;
00148                <span class="keywordtype">int</span> LeftBorder = CharRects[SelStartNorm].Left() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>;
00149 
00150                <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> &lt; 0)
00151                {
00152                     <span class="keywordflow">if</span> (LeftBorder &lt;= 0)
00153                     {
00154                          <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> = -(CharRects[SelStartNorm].Left() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>());
00155                     }
00156                     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (RightBorder &gt; SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>())
00157                     {
00158                          <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> = SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - (CharRects[SelStartNorm + SelLenNorm].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>());
00159                     }
00160                }
00161                <span class="keywordflow">else</span>
00162                {
00163                     <span class="keywordflow">if</span> (RightBorder &gt;= SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>())
00164                     {
00165                          <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> = SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - (CharRects[SelStartNorm + SelLenNorm].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>());
00166                     }
00167                     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (LeftBorder &lt; 0)
00168                     {
00169                          <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> = -(CharRects[SelStartNorm].Left() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>());
00170                     }
00171                }
00172 
00173                <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> != 0 &amp;&amp;
00174                     (CharRects[<a class="code" href="classwGui_1_1CWindow.html#n0">m_sWindowText</a>.length()].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> &lt; SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>()))
00175                {
00176                     <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> = SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - (CharRects[<a class="code" href="classwGui_1_1CWindow.html#n0">m_sWindowText</a>.length()].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>());
00177                     <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> &gt; 0)
00178                     {
00179                          <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a> = 0;
00180                     }
00181                }
00182           }
00183 
00184           <span class="comment">// Selection</span>
00185           <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> != 0)
00186           {
00187                <a class="code" href="classwGui_1_1CRect.html">CRect</a> SelRect;
00188                SelRect.<a class="code" href="classwGui_1_1CRect.html#a8">SetBottom</a>(SubRect.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>());
00189                SelRect.<a class="code" href="classwGui_1_1CRect.html#a5">SetTop</a>(SubRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>());
00190                SelRect.<a class="code" href="classwGui_1_1CRect.html#a6">SetLeft</a>(CharRects[SelStartNorm].Left() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>);
00191                SelRect.<a class="code" href="classwGui_1_1CRect.html#a7">SetRight</a>(CharRects[SelLenNorm + SelStartNorm - 1].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>);
00192                SelRect.<a class="code" href="classwGui_1_1CRect.html#a31">ClipTo</a>(SubRect);
00193                Painter.<a class="code" href="classwGui_1_1CPainter.html#a5">DrawRect</a>(SelRect, <span class="keyword">true</span>, <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>(102, 128, 151), <a class="code" href="classwGui_1_1CRGBColor.html">CRGBColor</a>(102, 128, 151));
00194           }
00195 
00196           <span class="comment">//TODO:</span>
00197           <span class="comment">//We should do this regardless of wether there's text selected or not.</span>
00198           <span class="comment">// This means we'll have to calculate the CursorPos all the time.  Including when we're selecting.</span>
00199           <span class="keywordflow">else</span>
00200           {
00201                <span class="comment">//RenderStringWithCursor</span>
00202                <span class="keywordtype">int</span> CursorPos;
00203                CursorPos = CharRects[<a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>].Left() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>;
00204                <span class="keywordflow">if</span> (CursorPos &gt;= SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() &amp;&amp; CursorPos &lt;= SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>())
00205                {
00206                     Painter.<a class="code" href="classwGui_1_1CPainter.html#a4">DrawVLine</a>(SubRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>(), SubRect.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>(), CursorPos, COLOR_BLACK);
00207                }
00208           }
00209      }
00210 
00211      DrawRect.<a class="code" href="classwGui_1_1CRect.html#a6">SetLeft</a>(DrawRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>);
00212      <span class="keywordtype">int</span> HeightDiff=<a class="code" href="classwGui_1_1CEditBox.html#n1">m_pRenderedString</a>-&gt;GetMaxFontHeight()/4;
00213      DrawRect.<a class="code" href="classwGui_1_1CRect.html#a5">SetTop</a>(DrawRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() - HeightDiff);
00214      DrawRect.<a class="code" href="classwGui_1_1CRect.html#a8">SetBottom</a>(DrawRect.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>() - HeightDiff);
00215      <a class="code" href="classwGui_1_1CEditBox.html#n1">m_pRenderedString</a>-&gt;Draw(<a class="code" href="classwGui_1_1CWindow.html#n6">m_pSDLSurface</a>, SubRect, DrawRect.<a class="code" href="classwGui_1_1CRect.html#a15">BottomLeft</a>(), FontColor);
00216 }
00217 
00218 
<a name="l00219"></a><a class="code" href="classwGui_1_1CEditBox.html#a8">00219</a> <span class="keywordtype">void</span> CEditBox::SetWindowText(<span class="keyword">const</span> std::string&amp; sText)
00220 {
00221      <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = 0;
00222      <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = 0;
00223      CWindow::SetWindowText(sText);
00224      std::auto_ptr&lt;CRenderedString&gt; pRenderedString(<span class="keyword">new</span> <a class="code" href="classwGui_1_1CRenderedString.html">CRenderedString</a>(
00225           <a class="code" href="classwGui_1_1CEditBox.html#n0">m_pFontEngine</a>, sText, CRenderedString::VALIGN_NORMAL, CRenderedString::HALIGN_LEFT));
00226      <a class="code" href="classwGui_1_1CEditBox.html#n1">m_pRenderedString</a> = pRenderedString;
00227      <a class="code" href="classwGui_1_1CWindow.html#a23">StartDrawProc</a>();
00228 }
00229 
00230 
<a name="l00231"></a><a class="code" href="classwGui_1_1CEditBox.html#a9">00231</a> <span class="keywordtype">bool</span> CEditBox::OnMouseButtonDown(<a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Point, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Button)
00232 {
00233      <span class="keywordtype">bool</span> bResult = <span class="keyword">false</span>;
00234 
00235      <span class="keywordflow">if</span> (! CWindow::OnMouseButtonDown(Point, Button) &amp;&amp; <a class="code" href="classwGui_1_1CWindow.html#n7">m_bVisible</a> &amp;&amp; (<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(Point) == CRect::RELPOS_INSIDE) &amp;&amp;
00236           (Button == CMouseMessage::LEFT) &amp;&amp; !<a class="code" href="classwGui_1_1CEditBox.html#n7">m_bReadOnly</a>)
00237      {
00238           <span class="keywordflow">if</span> (CApplication::Instance()-&gt;GetKeyFocus() != <span class="keyword">this</span>)
00239           {
00240                CApplication::Instance()-&gt;SetKeyFocus(<span class="keyword">this</span>);
00241           }
00242 
00243           <a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Offset;
00244           std::vector&lt;CRect&gt; CharRects;
00245           <a class="code" href="classwGui_1_1CEditBox.html#n1">m_pRenderedString</a>-&gt;GetMetrics(0, &amp;Offset, &amp;CharRects);
00246           <a class="code" href="classwGui_1_1CRect.html">CRect</a> SubRect(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>);
00247           SubRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(-3);
00248 
00249           <span class="keywordtype">int</span> xDelta = abs(Point.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() - (CharRects[0].Left() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>()));
00250           <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = 0;
00251           <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = 0; i &lt; <a class="code" href="classwGui_1_1CEditBox.html#n1">m_pRenderedString</a>-&gt;GetLength(); ++i)
00252           {
00253                <span class="keywordflow">if</span> (abs(Point.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() - (CharRects[i].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>)) &lt; xDelta)
00254                {
00255                     xDelta = abs(Point.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() - (CharRects[i].Right() + Offset.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() + SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CEditBox.html#n6">m_ScrollOffset</a>));
00256                     <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a> = i + 1;
00257                }
00258           }
00259 
00260           <a class="code" href="classwGui_1_1CEditBox.html#n5">m_DragStart</a> = <a class="code" href="classwGui_1_1CEditBox.html#n3">m_SelStart</a>;
00261           <a class="code" href="classwGui_1_1CEditBox.html#n4">m_SelLength</a> = 0;
00262           <a class="code" href="classwGui_1_1CEditBox.html#n8">m_bMouseDown</a> = <span class="keyword">true</span>;
00263           <a class="code" href="classwGui_1_1CWindow.html#a23">StartDrawProc</a>();
00264           bResult = <span class="keyword">true</span>;
00265      }
00266 
00267      <span class="keywordflow">return</span> bResult;
00268 }
00269 
00270 
<a name="l00271"></a><a class="code" href="classwGui_1_1CEditBox.html#a10">00271</a> <span class="keywordtype">bool</span> CEditBox::HandleMessage(<a class="code" href="classwGui_1_1CMessage.html">CMessage</a>* pMessage)
00272 {
00273      <span class="keywordtype">bool</span> bHandled = <span class="keyword">false</span>;
00274      <a class="code" href="classwGui_1_1CRect.html">CRect</a> SubRect(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>);
00275      SubRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(-3);
00276 
00277      <span class="keywordflow">if</span> (pMessage)
00278      {
00279           <span class="keywordflow">switch</span>(pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a2">MessageType</a>())
00280           {
00281           <span class="keywordflow">case</span> CMessage::MOUSE_BUTTONUP:
00282                <a class="code" href="classwGui_1_1CEditBox.html#n8">m_bMouseDown</a> = <span class="keyword">false</span>;
00283                <span class="keywordflow">break</span>;
00284           <span class="keywordflow">case</span> CMessage::MOUSE_MOVE:
00285           {
00286                <a class="code" href="classwGui_1_1CMouseMessage.html">CMouseMessage</a>* pMouseMessage = dynamic_cast&lt;CMouseMessage*&gt;(pMessage);