wg__listbox_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00110      {
00111           <a class="code" href="classwGui_1_1CListBox.html#n5">m_SelectedItems</a>[i] = bSelected;
00112      }
00113 }
00114 
00115 
<a name="l00116"></a><a class="code" href="classwGui_1_1CListBox.html#a13">00116</a> <span class="keywordtype">void</span> CListBox::Draw(<span class="keywordtype">void</span>)<span class="keyword"> const</span>
00117 <span class="keyword"></span>{
00118      CWindow::Draw();
00119 
00120      <a class="code" href="classwGui_1_1CPainter.html">CPainter</a> Painter(<a class="code" href="classwGui_1_1CWindow.html#n6">m_pSDLSurface</a>);
00121      Painter.<a class="code" href="classwGui_1_1CPainter.html#a5">DrawRect</a>(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>, <span class="keyword">false</span>, COLOR_BLACK);
00122      <a class="code" href="classwGui_1_1CRect.html">CRect</a> ClientRect(<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>());
00123      <span class="keywordtype">int</span> iStartIndex = <a class="code" href="classwGui_1_1CListBox.html#n1">m_pVScrollbar</a>-&gt;<a class="code" href="classwGui_1_1CScrollBar.html#a6">GetPosition</a>();
00124      <span class="keywordflow">for</span> (<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i = iStartIndex; i &lt; <a class="code" href="classwGui_1_1CListBox.html#n4">m_Items</a>.size(); ++i)
00125      {
00126           <a class="code" href="classwGui_1_1CRect.html">CRect</a> ItemRect(ClientRect.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>(), ClientRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + (i - iStartIndex) * <a class="code" href="classwGui_1_1CListBox.html#n2">m_iItemHeight</a>,
00127                ClientRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>(), ClientRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>() + (i - iStartIndex + 1) * <a class="code" href="classwGui_1_1CListBox.html#n2">m_iItemHeight</a> - 1);
00128           <span class="keywordflow">if</span> (ItemRect.<a class="code" href="classwGui_1_1CRect.html#a30">Overlaps</a>(<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>()))
00129           {
00130                ItemRect.<a class="code" href="classwGui_1_1CRect.html#a31">ClipTo</a>(<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>());
00131                ItemRect.<a class="code" href="classwGui_1_1CRect.html#a8">SetBottom</a>(ItemRect.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>() - 1);
00132                <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CListBox.html#n5">m_SelectedItems</a>[i])
00133                {
00134                     Painter.<a class="code" href="classwGui_1_1CPainter.html#a5">DrawRect</a>(ItemRect, <span class="keyword">true</span>, COLOR_LIGHTGRAY, COLOR_LIGHTGRAY);
00135                }
00136                <span class="keywordflow">if</span> (static_cast&lt;int&gt;(i) == <a class="code" href="classwGui_1_1CListBox.html#n3">m_iFocusedItem</a>)
00137                {
00138                     ItemRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(1);
00139                     Painter.<a class="code" href="classwGui_1_1CPainter.html#a5">DrawRect</a>(ItemRect, <span class="keyword">false</span>, COLOR_BLACK);
00140                     ItemRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(-1);
00141                }
00142                ItemRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(-1);
00143                <a class="code" href="classwGui_1_1CListBox.html#n6">m_RenderedStrings</a>[i].Draw(<a class="code" href="classwGui_1_1CWindow.html#n6">m_pSDLSurface</a>, ItemRect, ItemRect.<a class="code" href="classwGui_1_1CRect.html#a13">TopLeft</a>() + <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>(0, 1), <a class="code" href="classwGui_1_1CListBox.html#n4">m_Items</a>[i].ItemColor);
00144           }
00145      }
00146 }
00147 
00148 
<a name="l00149"></a><a class="code" href="classwGui_1_1CListBox.html#a14">00149</a> <span class="keywordtype">void</span> CListBox::SetWindowRect(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; WindowRect)
00150 {
00151      CWindow::SetWindowRect(WindowRect);
00152      <a class="code" href="classwGui_1_1CRect.html">CRect</a> ScrollbarRect(<a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>);
00153      ScrollbarRect.<a class="code" href="classwGui_1_1CRect.html#a28">Grow</a>(-1);
00154      <a class="code" href="classwGui_1_1CListBox.html#n1">m_pVScrollbar</a>-&gt;<a class="code" href="classwGui_1_1CScrollBar.html#a8">SetWindowRect</a>(<a class="code" href="classwGui_1_1CRect.html">CRect</a>(ScrollbarRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>() - 12, ScrollbarRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>(), ScrollbarRect.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>(), ScrollbarRect.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>()));
00155      <a class="code" href="classwGui_1_1CWindow.html#n3">m_ClientRect</a> = <a class="code" href="classwGui_1_1CRect.html">CRect</a>(2, 2, <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a23">Width</a>() - 16, <a class="code" href="classwGui_1_1CWindow.html#n1">m_WindowRect</a>.<a class="code" href="classwGui_1_1CRect.html#a24">Height</a>() - 4);
00156 }
00157 
00158 
<a name="l00159"></a><a class="code" href="classwGui_1_1CListBox.html#a15">00159</a> <span class="keywordtype">bool</span> CListBox::OnMouseButtonDown(<a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Point, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Button)
00160 {
00161      <span class="keywordtype">bool</span> bResult = <span class="keyword">false</span>;
00162 
00163      <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;
00164           (Button == CMouseMessage::LEFT))
00165      {
00166           <span class="keywordflow">if</span> (CApplication::Instance()-&gt;GetKeyFocus() != <span class="keyword">this</span>)
00167           {
00168                CApplication::Instance()-&gt;SetKeyFocus(<span class="keyword">this</span>);
00169           }
00170 
00171           <a class="code" href="classwGui_1_1CRect.html">CRect</a> ClientRect(<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>());
00172           <span class="keywordflow">if</span> (!<a class="code" href="classwGui_1_1CListBox.html#n4">m_Items</a>.empty() &amp;&amp; ClientRect.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(Point) == CRect::RELPOS_INSIDE)
00173           {
00174                <span class="comment">// Prep the new selection</span>
00175                <a class="code" href="classwGui_1_1CListBox.html#n3">m_iFocusedItem</a> = (Point.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() - ClientRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>()) / <a class="code" href="classwGui_1_1CListBox.html#n2">m_iItemHeight</a> + <a class="code" href="classwGui_1_1CListBox.html#n1">m_pVScrollbar</a>-&gt;<a class="code" href="classwGui_1_1CScrollBar.html#a6">GetPosition</a>();
00176                <a class="code" href="classwGui_1_1CWindow.html#a23">StartDrawProc</a>();
00177           }
00178           bResult = <span class="keyword">true</span>;
00179      }
00180 
00181      <span class="keywordflow">return</span> bResult;
00182 }
00183 
00184 
<a name="l00185"></a><a class="code" href="classwGui_1_1CListBox.html#a16">00185</a> <span class="keywordtype">bool</span> CListBox::OnMouseButtonUp(<a class="code" href="classwGui_1_1CPoint.html">CPoint</a> Point, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> Button)
00186 {
00187      <span class="keywordtype">bool</span> bResult = <span class="keyword">false</span>;
00188      <a class="code" href="classwGui_1_1CRect.html">CRect</a> ClientRect(<a class="code" href="classwGui_1_1CWindow.html#a5">GetClientRect</a>());
00189 
00190      <span class="keywordflow">if</span> (! CWindow::OnMouseButtonUp(Point, Button) &amp;&amp; <a class="code" href="classwGui_1_1CWindow.html#n7">m_bVisible</a> &amp;&amp; (ClientRect.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(Point) == CRect::RELPOS_INSIDE) &amp;&amp;
00191           (Button == CMouseMessage::LEFT))
00192      {
00193           <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CListBox.html#n3">m_iFocusedItem</a> == static_cast&lt;int&gt;((Point.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() - ClientRect.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>()) / <a class="code" href="classwGui_1_1CListBox.html#n2">m_iItemHeight</a> + <a class="code" href="classwGui_1_1CListBox.html#n1">m_pVScrollbar</a>-&gt;<a class="code" href="classwGui_1_1CScrollBar.html#a6">GetPosition</a>()))
00194           {
00195                <span class="keywordflow">if</span> (m_bSingleSelection)
00196                {
00197                     <a class="code" href="classwGui_1_1CListBox.html#a11">SetAllSelections</a>(<span class="keyword">false</span>);
00198                }
00199                <a class="code" href="classwGui_1_1CListBox.html#a10">SetSelection</a>(<a class="code" href="classwGui_1_1CListBox.html#n3">m_iFocusedItem</a>, ! <a class="code" href="classwGui_1_1CListBox.html#a9">IsSelected</a>(<a class="code" href="classwGui_1_1CListBox.html#n3">m_iFocusedItem</a>));
00200                <a class="code" href="classwGui_1_1CWindow.html">CWindow</a>* pDestination = <a class="code" href="classwGui_1_1CWindow.html#n4">m_pParentWindow</a>;
00201                <span class="keywordflow">if</span> (m_pDropDown)
00202                {
00203                     pDestination = <a class="code" href="classwGui_1_1CListBox.html#n8">m_pDropDown</a>;
00204                }
00205                CMessageServer::Instance().QueueMessage(<span class="keyword">new</span> TIntMessage(CMessage::CTRL_VALUECHANGE, pDestination, <span class="keyword">this</span>, <a class="code" href="classwGui_1_1CListBox.html#n3">m_iFocusedItem</a>));
00206                <a class="code" href="classwGui_1_1CWindow.html#a23">StartDrawProc</a>();
00207           }
00208           bResult = <span class="keyword">true</span>;
00209      }
00210 
00211      <span class="keywordflow">return</span> bResult;
00212 }
00213 
00214 
<a name="l00215"></a><a class="code" href="classwGui_1_1CListBox.html#a17">00215</a> <span class="keywordtype">bool</span> CListBox::HandleMessage(<a class="code" href="classwGui_1_1CMessage.html">CMessage</a>* pMessage)
00216 {
00217      <span class="keywordtype">bool</span> bHandled = <span class="keyword">false</span>;
00218 
00219      <span class="keywordflow">if</span> (pMessage)
00220      {
00221           <span class="keywordflow">switch</span>(pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a2">MessageType</a>())
00222           {
00223           <span class="keywordflow">case</span> CMessage::KEYBOARD_KEYDOWN:
00224           {
00225                <a class="code" href="classwGui_1_1CKeyboardMessage.html">CKeyboardMessage</a>* pKeyMsg = dynamic_cast&lt;CKeyboardMessage*&gt;(pMessage);
00226                <span class="keywordflow">if</span> (pKeyMsg &amp;&amp; pMessage-&gt;<a class="code" href="classwGui_1_1CMessage.html#a3">Destination</a>() == <span class="keyword">this</span>)