wg__menu_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00488                SourceRect.h = static_cast&lt;short int&gt;(std::min(ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>(), <a class="code" href="classwGui_1_1CMenuBase.html#n5">m_hRightArrowBitmap</a>.<a class="code" href="classwGui_1_1CBitmapResourceHandle.html#a3">Bitmap</a>()-&gt;h));
00489                SDL_Rect DestRect;
00490                DestRect.x = static_cast&lt;short int&gt;(ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>());
00491                DestRect.y = static_cast&lt;short int&gt;((ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() - <a class="code" href="classwGui_1_1CMenuBase.html#n5">m_hRightArrowBitmap</a>.<a class="code" href="classwGui_1_1CBitmapResourceHandle.html#a3">Bitmap</a>()-&gt;h) / 2 &lt; 0 ?
00492                     ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() : ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + (ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() - <a class="code" href="classwGui_1_1CMenuBase.html#n5">m_hRightArrowBitmap</a>.<a class="code" href="classwGui_1_1CBitmapResourceHandle.html#a3">Bitmap</a>()-&gt;h) / 2);
00493                DestRect.w = static_cast&lt;short int&gt;(<a class="code" href="classwGui_1_1CMenuBase.html#n5">m_hRightArrowBitmap</a>.<a class="code" href="classwGui_1_1CBitmapResourceHandle.html#a3">Bitmap</a>()-&gt;w);
00494                DestRect.h = static_cast&lt;short int&gt;(std::min(ArrowRect.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>(), <a class="code" href="classwGui_1_1CMenuBase.html#n5">m_hRightArrowBitmap</a>.<a class="code" href="classwGui_1_1CBitmapResourceHandle.html#a3">Bitmap</a>()-&gt;h));
00495                SDL_BlitSurface(<a class="code" href="classwGui_1_1CMenuBase.html#n5">m_hRightArrowBitmap</a>.<a class="code" href="classwGui_1_1CBitmapResourceHandle.html#a3">Bitmap</a>(), &amp;SourceRect, <a class="code" href="classwGui_1_1CWindow.html#n6">m_pSDLSurface</a>, &amp;DestRect);
00496           }
00497      }
00498 }
00499 
00500 
<a name="l00501"></a><a class="code" href="classwGui_1_1CPopupMenu.html#a9">00501</a> <span class="keywordtype">bool</span> CPopupMenu::OnMouseButtonDown(<a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Point, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Button)
00502 {
00503      <span class="keywordtype">bool</span> bResult = <span class="keyword">false</span>;
00504 
00505      <span class="keywordflow">if</span> (! CMenuBase::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))
00506      {
00507           <a class="code" href="classwGui_1_1CPopupMenu.html#b0">UpdateCachedRects</a>();
00508           <span class="keywordflow">for</span> (t_MenuItemVector::iterator iter = <a class="code" href="classwGui_1_1CMenuBase.html#n1">m_MenuItems</a>.begin(); iter != <a class="code" href="classwGui_1_1CMenuBase.html#n1">m_MenuItems</a>.end(); ++iter)
00509           {
00510                <span class="keywordflow">if</span> (iter-&gt;second.second.HitTest(Point) == CRect::RELPOS_INSIDE &amp;&amp; !iter-&gt;first.bSpacer)
00511                {
00512                     <span class="keywordflow">if</span> (!iter-&gt;first.pPopup)
00513                     {
00514                          <a class="code" href="classwGui_1_1CMessageClient.html">CMessageClient</a>* pDestination = <a class="code" href="classwGui_1_1CWindow.html#n4">m_pParentWindow</a>;
00515                          <span class="keywordflow">if</span> (m_pParentMenu)
00516                          {
00517                               pDestination = <a class="code" href="classwGui_1_1CPopupMenu.html#n0">m_pParentMenu</a>;
00518                          }
00519                          CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> TIntMessage(CMessage::CTRL_LCLICK, pDestination, <span class="keyword">this</span>, iter-&gt;first.iItemId));
00520                          <a class="code" href="classwGui_1_1CPopupMenu.html#a4">HideAll</a>();
00521                     }
00522                     <span class="keywordflow">else</span>
00523                     {
00524                          <a class="code" href="classwGui_1_1CMenuBase.html#a5">HideActivePopup</a>();
00525                          <a class="code" href="classwGui_1_1CMenuBase.html#n4">m_pActivePopup</a> = iter-&gt;first.pPopup;
00526                          <a class="code" href="classwGui_1_1CPopupMenu.html#b1">ShowActivePopup</a>(iter-&gt;second.second, <a class="code" href="classwGui_1_1CWindow.html#a8">GetAncestor</a>(<a class="code" href="classwGui_1_1CWindow.html#s2s1">ROOT</a>)-&gt;<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>());
00527                     }
00528                     <span class="keywordflow">break</span>;
00529                }
00530           }
00531           bResult = <span class="keyword">true</span>;
00532      }
00533 
00534      <span class="keywordflow">return</span> bResult;
00535 }
00536 
00537 
<a name="l00538"></a><a class="code" href="classwGui_1_1CPopupMenu.html#a10">00538</a> <span class="keywordtype">bool</span> CPopupMenu::HandleMessage(<a class="code" href="classwGui_1_1CMessage.html">CMessage</a>* pMessage)
00539 {
00540      <span class="keywordtype">bool</span> bHandled = <span class="keyword">false</span>;
00541 
00542      <span class="keywordflow">if</span> (pMessage)
00543      {
00544           <span class="keywordflow">switch</span>(pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a2">MessageType</a>())
00545           {
00546           <span class="keywordflow">case</span> CMessage::MOUSE_BUTTONDOWN:
00547           {
00548                <a class="code" href="classwGui_1_1CMouseMessage.html">CMouseMessage</a>* pMouseMessage = dynamic_cast&lt;CMouseMessage*&gt;(pMessage);
00549                <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CWindow.html#n7">m_bVisible</a> &amp;&amp; pMouseMessage &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>(pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m0">Point</a>) != CRect::RELPOS_INSIDE))
00550                {
00551                     <span class="comment">// If the user clicked outside the window, we just want to hide the window,</span>
00552                     <span class="comment">// and then pass the message on (bHandled = false)</span>
00553                     <span class="comment">// But we only want the root popup to do this, and only if none of it's children were hit</span>
00554                     <span class="keywordflow">if</span> (!dynamic_cast&lt;CPopupMenu*&gt;(m_pParentWindow) &amp;&amp; !<a class="code" href="classwGui_1_1CPopupMenu.html#a5">IsInsideChild</a>(pMouseMessage-&gt;<a class="code" href="classwGui_1_1CMouseMessage.html#m0">Point</a>) &amp;&amp;
00555                          !(<a class="code" href="classwGui_1_1CPopupMenu.html#n0">m_pParentMenu</a> &amp;&amp; <a class="code" href="classwGui_1_1CPopupMenu.html#n0">m_pParentMenu</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))
00556                     {
00557                          <a class="code" href="classwGui_1_1CPopupMenu.html#a4">HideAll</a>();
00558                     }
00559                }
00560                <span class="keywordflow">break</span>;
00561           }
00562           <span class="keywordflow">case</span> CMessage::CTRL_TIMER:
00563           {
00564                <span class="keywordflow">if</span> (pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a3">Destination</a>() == <span class="keyword">this</span>)
00565                {
00566                     <a class="code" href="classwGui_1_1CRect.html">CRect</a> ItemRect;
00567                     <span class="keywordflow">for</span> (t_MenuItemVector::iterator iter = <a class="code" href="classwGui_1_1CMenuBase.html#n1">m_MenuItems</a>.begin(); iter != <a class="code" href="classwGui_1_1CMenuBase.html#n1">m_MenuItems</a>.end(); ++iter)
00568                     {
00569                          <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CMenuBase.html#n2">m_pHighlightedItem</a> == &amp;(iter-&gt;first))
00570                          {
00571                               ItemRect = iter-&gt;second.second;
00572                               <span class="keywordflow">break</span>;
00573                          }
00574                     }
00575                     <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CMenuBase.html#n2">m_pHighlightedItem</a> &amp;&amp; <a class="code" href="classwGui_1_1CMenuBase.html#n2">m_pHighlightedItem</a>-&gt;<a class="code" href="structwGui_1_1SMenuItem.html#m2">pPopup</a>)
00576                     {
00577                          <a class="code" href="classwGui_1_1CMenuBase.html#a5">HideActivePopup</a>();
00578                          <a class="code" href="classwGui_1_1CMenuBase.html#n4">m_pActivePopup</a> = <a class="code" href="classwGui_1_1CMenuBase.html#n2">m_pHighlightedItem</a>-&gt;<a class="code" href="structwGui_1_1SMenuItem.html#m2">pPopup</a>;
00579                          <a class="code" href="classwGui_1_1CPopupMenu.html#b1">ShowActivePopup</a>(ItemRect, <a class="code" href="classwGui_1_1CWindow.html#a8">GetAncestor</a>(<a class="code" href="classwGui_1_1CWindow.html#s2s1">ROOT</a>)-&gt;<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>());
00580                     }
00581                     bHandled = <span class="keyword">true</span>;
00582                }
00583                <span class="keywordflow">break</span>;
00584           }
00585           <span class="keywordflow">default</span> :
00586                bHandled = CMenuBase::HandleMessage(pMessage);
00587                <span class="keywordflow">break</span>;
00588           }
00589      }
00590 
00591      <span class="keywordflow">return</span> bHandled;
00592 }
00593 
00594 
<a name="l00595"></a><a class="code" href="classwGui_1_1CPopupMenu.html#b0">00595</a> <span class="keywordtype">void</span> CPopupMenu::UpdateCachedRects(<span class="keywordtype">void</span>)<span class="keyword"> const</span>
00596 <span class="keyword"></span>{
00597      <span class="keywordflow">if</span> (!<a class="code" href="classwGui_1_1CMenuBase.html#n3">m_bCachedRectsValid</a>)
00598      {
00599           <a class="code" href="classwGui_1_1CRect.html">CRect</a> SubRect(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>);
00600           SubRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(-2);
00601           <span class="keywordtype">int</span> iHeight = 4;
00602           <span class="keywordflow">for</span> (t_MenuItemVector::iterator iter = <a class="code" href="classwGui_1_1CMenuBase.html#n1">m_MenuItems</a>.begin(); iter != <a class="code" href="classwGui_1_1CMenuBase.html#n1">m_MenuItems</a>.end(); ++iter)
00603           {
00604                <span class="keywordflow">if</span> (iter-&gt;first.bSpacer)
00605                {
00606                     <a class="code" href="classwGui_1_1CRect.html">CRect</a> TextRect(SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + 3, SubRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + iHeight, SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - 3, SubRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + iHeight + 1);
00607                     TextRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(2);
00608                     iter-&gt;second.second = TextRect;
00609                     iHeight += 6;
00610                }
00611                <span class="keywordflow">else</span>
00612                {
00613                     <a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Dims;
00614                     iter-&gt;second.first.GetMetrics(&amp;Dims, 0, 0);
00615                     <a class="code" href="classwGui_1_1CRect.html">CRect</a> TextRect(SubRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>() + 3, SubRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + iHeight, SubRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - 3, SubRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + iHeight + Dims.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>());
00616                     TextRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(2);
00617                     iter-&gt;second.second = TextRect;
00618                     iHeight += Dims.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() + 5;
00619                }
00620           }
00621           <a class="code" href="classwGui_1_1CMenuBase.html#n3">m_bCachedRectsValid</a> = <span class="keyword">true</span>;
00622      }
00623 }
00624 
00625 
<a name="l00626"></a><a class="code" href="classwGui_1_1CPopupMenu.html#b1">00626</a> <span class="keywordtype">void</span> CPopupMenu::ShowActivePopup(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; ParentRect, <span class="keyword">const</span> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; BoundingRect)
00627 {
00628      <span class="comment">// TODO: Add bounds checking for all edges.  Apply this same bounds checking logic to the popup root menu too.</span>
00629      <span class="keywordflow">if</span> (!<a class="code" href="classwGui_1_1CMenuBase.html#n4">m_pActivePopup</a>)
00630      {
00631           <span class="keywordflow">throw</span>(<a class="code" href="classwGui_1_1Wg__Ex__App.html">Wg_Ex_App</a>(<span class="stringliteral">"CPopupMenu::ShowActivePopup() : Trying to show active popup menu when pActivePopup is NULL!"</span>));
00632      }
00633      <a class="code" href="classwGui_1_1CRect.html">CRect</a> MenuRect = <a class="code" href="classwGui_1_1CMenuBase.html#n4">m_pActivePopup</a>-&gt;<a class="code" href="classwGui_1_1CWindow.html#a3">GetWindowRect</a>();
00634      <span class="keywordflow">if</span> (BoundingRect.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(ParentRect.<a class="code" href="classwGui_1_1CRect.html#a14">TopRight</a>() + <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(5, 0) + <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(MenuRect.<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>(), 0)) &amp; CRect::RELPOS_RIGHT)
00635      {
00636           <a class="code" href="classwGui_1_1CMenuBase.html#n4">m_pActivePopup</a>-&gt;<a class="code" href="classwGui_1_1CPopupMenu.html#a2">Show</a>(ParentRect.<a class="code" href="classwGui_1_1CRect.html#a13">TopLeft</a>() - <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(MenuRect.<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>() + 5, 0));
00637      }
00638      <span class="keywordflow">else</span>
00639      {
00640           <a class="code" href="classwGui_1_1CMenuBase.html#n4">m_pActivePopup</a>-&gt;<a class="code" href="classwGui_1_1CPopupMenu.html#a2">Show</a>(ParentRect.<a class="code" href="classwGui_1_1CRect.html#a14">TopRight</a>() + <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(5, 0));
00641      }
00642 }
00643 
00644 }
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