wg__scrollbar_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00138      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>(), SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>(), COLOR_DARKGRAY);
00139 }
00140 
00141 
<a name="l00142"></a><a class="code" href="classwGui_1_1CScrollBar.html#a8">00142</a> <span class="keywordtype">void</span> CScrollBar::SetWindowRect(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; WindowRect)
00143 {
00144      CWindow::SetWindowRect(WindowRect);
00145      <span class="comment">// Resposition the thumb rect and the button controls</span>
00146      <a class="code" href="classwGui_1_1CScrollBar.html#a5">SetPosition</a>(m_iPosition);
00147      <span class="keywordflow">switch</span> (m_ScrollBarType)
00148      {
00149      <span class="keywordflow">case</span> <a class="code" href="classwGui_1_1CScrollBar.html#s2s0">VERTICAL</a>:
00150      {
00151           m_ThumbRect.<a class="code" href="classwGui_1_1CRect.html#a6">SetLeft</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>());
00152           m_ThumbRect.<a class="code" href="classwGui_1_1CRect.html#a7">SetRight</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>());
00153           m_pBtnUpLeft-&gt;<a class="code" href="classwGui_1_1CWindow.html#a2">SetWindowRect</a>(<a class="code" href="classwGui_1_1CRect.html">CRect</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a13">TopLeft</a>(),
00154                <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>(), <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>())));
00155           m_pBtnDownRight-&gt;<a class="code" href="classwGui_1_1CWindow.html#a2">SetWindowRect</a>(<a class="code" href="classwGui_1_1CRect.html">CRect</a>(
00156                <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>(), <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>() - <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>()), <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a16">BottomRight</a>()));
00157           <a class="code" href="classwGui_1_1CWindow.html#n3">m_ClientRect</a>.<a class="code" href="classwGui_1_1CRect.html#a5">SetTop</a>(m_pBtnUpLeft-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>().<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() + 1);
00158           <a class="code" href="classwGui_1_1CWindow.html#n3">m_ClientRect</a>.<a class="code" href="classwGui_1_1CRect.html#a8">SetBottom</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() - m_pBtnUpLeft-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>().<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() - 1);
00159           <span class="keywordflow">break</span>;
00160      }
00161      <span class="keywordflow">case</span> <a class="code" href="classwGui_1_1CScrollBar.html#s2s1">HORIZONTAL</a>:
00162      {
00163           m_ThumbRect.<a class="code" href="classwGui_1_1CRect.html#a5">SetTop</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>());
00164           m_ThumbRect.<a class="code" href="classwGui_1_1CRect.html#a8">SetBottom</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>());
00165           m_pBtnUpLeft-&gt;<a class="code" href="classwGui_1_1CWindow.html#a2">SetWindowRect</a>(<a class="code" href="classwGui_1_1CRect.html">CRect</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a13">TopLeft</a>(),
00166                <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>(), <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>())));
00167           m_pBtnDownRight-&gt;<a class="code" href="classwGui_1_1CWindow.html#a2">SetWindowRect</a>(<a class="code" href="classwGui_1_1CRect.html">CRect</a>(
00168                <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>(), <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>()), <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a16">BottomRight</a>()));
00169           <a class="code" href="classwGui_1_1CWindow.html#n3">m_ClientRect</a>.<a class="code" href="classwGui_1_1CRect.html#a6">SetLeft</a>(m_pBtnUpLeft-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>().<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>() + 1);
00170           <a class="code" href="classwGui_1_1CWindow.html#n3">m_ClientRect</a>.<a class="code" href="classwGui_1_1CRect.html#a7">SetRight</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>() - m_pBtnUpLeft-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>().<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>() - 1);
00171           <span class="keywordflow">break</span>;
00172      }
00173      <span class="keywordflow">default</span>:
00174           <span class="keywordflow">throw</span>(<a class="code" href="classwGui_1_1Wg__Ex__App.html">Wg_Ex_App</a>(<span class="stringliteral">"CScrollBar::SetWindowRect:  Unrecognized ScrollBar Type."</span>));
00175           <span class="keywordflow">break</span>;
00176      }
00177 }
00178 
00179 
<a name="l00180"></a><a class="code" href="classwGui_1_1CScrollBar.html#a9">00180</a> <span class="keywordtype">void</span> CScrollBar::MoveWindow(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>&amp; MoveDistance)
00181 {
00182      CWindow::MoveWindow(MoveDistance);
00183      m_ThumbRect = m_ThumbRect + MoveDistance;
00184 }
00185 
00186 
<a name="l00187"></a><a class="code" href="classwGui_1_1CScrollBar.html#a10">00187</a> <span class="keywordtype">bool</span> CScrollBar::OnMouseButtonDown(<a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Point, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Button)
00188 {
00189      <span class="keywordtype">bool</span> bResult = <span class="keyword">false</span>;
00190 
00191      <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; (m_ThumbRect.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(Point) == CRect::RELPOS_INSIDE) &amp;&amp;
00192           (Button == CMouseMessage::LEFT))
00193      {
00194           m_bDragging = <span class="keyword">true</span>;
00195           bResult = <span class="keyword">true</span>;
00196      }
00197 
00198      <span class="keywordflow">return</span> bResult;
00199 }
00200 
00201 
<a name="l00202"></a><a class="code" href="classwGui_1_1CScrollBar.html#a11">00202</a> <span class="keywordtype">bool</span> CScrollBar::HandleMessage(<a class="code" href="classwGui_1_1CMessage.html">CMessage</a>* pMessage)
00203 {
00204      <span class="keywordtype">bool</span> bHandled = <span class="keyword">false</span>;
00205 
00206      <span class="keywordflow">if</span> (pMessage)
00207      {
00208           <span class="keywordflow">switch</span>(pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a2">MessageType</a>())
00209           {
00210           <span class="keywordflow">case</span> CMessage::MOUSE_BUTTONUP:
00211           {
00212                <a class="code" href="classwGui_1_1CMouseMessage.html">CMouseMessage</a>* pMouseMessage = dynamic_cast&lt;CMouseMessage*&gt;(pMessage);
00213                <span class="keywordflow">if</span> (pMouseMessage &amp;&amp; m_bDragging &amp;&amp; pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m2">Button</a> == CMouseMessage::LEFT)
00214                {
00215                     m_bDragging = <span class="keyword">false</span>;
00216                     CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> TIntMessage(CMessage::CTRL_VALUECHANGE, <a class="code" href="classwGui_1_1CWindow.html#n4">m_pParentWindow</a>, <span class="keyword">this</span>, m_iPosition));
00217                     bHandled = <span class="keyword">true</span>;
00218                }
00219                <span class="keywordflow">break</span>;
00220           }
00221           <span class="keywordflow">case</span> CMessage::MOUSE_MOVE:
00222                <span class="keywordflow">if</span> (m_bDragging)
00223                {
00224                     <a class="code" href="classwGui_1_1CMouseMessage.html">CMouseMessage</a>* pMouseMessage = dynamic_cast&lt;CMouseMessage*&gt;(pMessage);
00225                     <span class="keywordflow">if</span> (pMouseMessage)
00226                     {
00227                          <span class="keywordtype">int</span> iOldPosition = m_iPosition;
00228                          <span class="keywordflow">switch</span> (m_ScrollBarType)
00229                          {
00230                          <span class="keywordflow">case</span> <a class="code" href="classwGui_1_1CScrollBar.html#s2s0">VERTICAL</a>:
00231                               <a class="code" href="classwGui_1_1CScrollBar.html#a5">SetPosition</a>((pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m0">Point</a>.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() - <a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>().<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>()) * (m_iMax - m_iMin) / <a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>().<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() + m_iMin);
00232                               <span class="keywordflow">break</span>;
00233                          <span class="keywordflow">case</span> <a class="code" href="classwGui_1_1CScrollBar.html#s2s1">HORIZONTAL</a>:
00234                               <a class="code" href="classwGui_1_1CScrollBar.html#a5">SetPosition</a>((pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m0">Point</a>.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() - <a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>().<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>()) * (m_iMax - m_iMin) / <a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>().<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>() + m_iMin);
00235                               <span class="keywordflow">break</span>;
00236                          <span class="keywordflow">default</span>:
00237                               <span class="keywordflow">throw</span>(<a class="code" href="classwGui_1_1Wg__Ex__App.html">Wg_Ex_App</a>(<span class="stringliteral">"CScrollBar::HandleMessage:  Unrecognized ScrollBar Type."</span>));
00238                               <span class="keywordflow">break</span>;
00239                          }
00240                          <span class="keywordflow">if</span> (iOldPosition != m_iPosition)
00241                          {
00242                               CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> TIntMessage(CMessage::CTRL_VALUECHANGING, <a class="code" href="classwGui_1_1CWindow.html#n4">m_pParentWindow</a>, <span class="keyword">this</span>, m_iPosition));
00243                          }
00244                     }
00245                }
00246                <span class="keywordflow">break</span>;
00247           <span class="keywordflow">case</span> CMessage::CTRL_LCLICK:
00248           {
00249                <span class="keywordflow">if</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a3">Destination</a>() == <span class="keyword">this</span>)
00250                {
00251                     <span class="keywordflow">if</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a4">Source</a>() == m_pBtnUpLeft)
00252                     {
00253                          <a class="code" href="classwGui_1_1CScrollBar.html#a5">SetPosition</a>(m_iPosition - 1);
00254                          bHandled = <span class="keyword">true</span>;
00255                     }
00256                     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a4">Source</a>() == m_pBtnDownRight)
00257                     {
00258                          <a class="code" href="classwGui_1_1CScrollBar.html#a5">SetPosition</a>(m_iPosition + 1);
00259                          bHandled = <span class="keyword">true</span>;
00260                     }
00261                     CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> TIntMessage(CMessage::CTRL_VALUECHANGE, <a class="code" href="classwGui_1_1CWindow.html#n4">m_pParentWindow</a>, <span class="keyword">this</span>, m_iPosition));
00262                }
00263                <span class="keywordflow">break</span>;
00264           }
00265           <span class="keywordflow">default</span> :
00266                bHandled = CWindow::HandleMessage(pMessage);
00267                <span class="keywordflow">break</span>;
00268           }
00269      }
00270 
00271      <span class="keywordflow">return</span> bHandled;
00272 }
00273 
00274 }
00275 
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