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一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00088                <a class="code" href="classwGui_1_1CMouseMessage.html">CMouseMessage</a>* pMouseMessage = dynamic_cast&lt;CMouseMessage*&gt;(pMessage);
00089                <span class="keywordflow">if</span> (pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m2">Button</a> == CMouseMessage::LEFT)
00090                {
00091                     <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a10">IsVisible</a>() &amp;&amp; <a class="code" href="classwGui_1_1CDropDown.html#n2">m_pDropButton</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>().<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m0">Point</a>) != CRect::RELPOS_INSIDE
00092                          &amp;&amp; <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>().<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m0">Point</a>) != CRect::RELPOS_INSIDE)
00093                     {
00094                          <a class="code" href="classwGui_1_1CDropDown.html#b1">HideListBox</a>();
00095                     }
00096                }
00097                <span class="keywordflow">break</span>;
00098           }
00099           <span class="keywordflow">case</span> CMessage::CTRL_LCLICK:
00100           {
00101                <span class="keywordflow">if</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a3">Destination</a>() == <span class="keyword">this</span>)
00102                {
00103                     <span class="keywordflow">if</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a4">Source</a>() == <a class="code" href="classwGui_1_1CDropDown.html#n2">m_pDropButton</a>)
00104                     {
00105                          <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a10">IsVisible</a>())
00106                          {
00107                               <a class="code" href="classwGui_1_1CDropDown.html#b1">HideListBox</a>();
00108                          }
00109                          <span class="keywordflow">else</span>
00110                          {
00111                               <a class="code" href="classwGui_1_1CDropDown.html#b0">ShowListBox</a>();
00112                          }
00113                          bHandled = <span class="keyword">true</span>;
00114                     }
00115                }
00116                <span class="keywordflow">break</span>;
00117           }
00118           <span class="keywordflow">case</span> CMessage::CTRL_VALUECHANGE:
00119           {
00120                TIntMessage* pCtrlMessage = dynamic_cast&lt;TIntMessage*&gt;(pMessage);
00121                <span class="keywordflow">if</span> (pCtrlMessage &amp;&amp; pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a3">Destination</a>() == <span class="keyword">this</span>)
00122                {
00123                     <span class="keywordflow">if</span> (pCtrlMessage-&gt;Source() == <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>)
00124                     {
00125                          <span class="keyword">const</span> <a class="code" href="structwGui_1_1SListItem.html">SListItem</a>&amp; ListItem = <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CListBox.html#a5">GetItem</a>(pCtrlMessage-&gt;Value());
00126                          <a class="code" href="classwGui_1_1CDropDown.html#a2">SetWindowText</a>(ListItem.<a class="code" href="structwGui_1_1SListItem.html#m0">sItemText</a>);
00127                          <a class="code" href="classwGui_1_1CDropDown.html#b1">HideListBox</a>();
00128                          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>, 0));
00129                          bHandled = <span class="keyword">true</span>;
00130                     }
00131                     <span class="keywordflow">else</span> <span class="keywordflow">if</span> (pCtrlMessage-&gt;Source() == <a class="code" href="classwGui_1_1CDropDown.html#n0">m_pEditBox</a>)
00132                     {
00133                          <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CListBox.html#a11">SetAllSelections</a>(<span class="keyword">false</span>);
00134                          <a class="code" href="classwGui_1_1CDropDown.html#b1">HideListBox</a>();
00135                          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>, 0));
00136                          bHandled = <span class="keyword">true</span>;
00137                     }
00138                }
00139                <span class="keywordflow">break</span>;
00140           }
00141           <span class="keywordflow">default</span> :
00142                bHandled = CWindow::HandleMessage(pMessage);
00143                <span class="keywordflow">break</span>;
00144           }
00145      }
00146 
00147      <span class="keywordflow">return</span> bHandled;
00148 }
00149 
00150 
<a name="l00151"></a><a class="code" href="classwGui_1_1CDropDown.html#b0">00151</a> <span class="keywordtype">void</span> CDropDown::ShowListBox(<span class="keywordtype">void</span>)
00152 {
00153      <span class="keywordflow">if</span> (!<a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a10">IsVisible</a>())
00154      {
00155           <span class="comment">// This makes sure the ListBox is at the top of the order so it gets first shot at the OnMouseButtonDown/Up</span>
00156           <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a24">SetNewParent</a>(<a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a8">GetAncestor</a>(<a class="code" href="classwGui_1_1CWindow.html#s2s0">PARENT</a>));
00157           <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a11">SetVisible</a>(<span class="keyword">true</span>);
00158           <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a23">StartDrawProc</a>();
00159      }
00160 }
00161 
00162 
<a name="l00163"></a><a class="code" href="classwGui_1_1CDropDown.html#b1">00163</a> <span class="keywordtype">void</span> CDropDown::HideListBox(<span class="keywordtype">void</span>)
00164 {
00165      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a10">IsVisible</a>())
00166      {
00167           <a class="code" href="classwGui_1_1CDropDown.html#n1">m_pListBox</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a11">SetVisible</a>(<span class="keyword">false</span>);
00168           CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> <a class="code" href="classwGui_1_1CMessage.html">CMessage</a>(CMessage::APP_PAINT, 0, <span class="keyword">this</span>));
00169      }
00170 }
00171 
00172 }
00173 
00174 
</pre></div><hr><address style="align: right;"><small>Generated on Sat Oct 25 12:43:22 2003 for wGui by
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