wg__rect_8cpp-source.html

一个小巧的嵌入式图形系统wGUI, 可以用VC编译

00092      <a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> -= iGrowAmount;
00093      <a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> -= iGrowAmount;
00094      <a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> += iGrowAmount;
00095      <a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a> += iGrowAmount;
00096 
00097      <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00098 }
00099 
00100 
<a name="l00101"></a><a class="code" href="classwGui_1_1CRect.html#a29">00101</a> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; CRect::Move(<span class="keywordtype">int</span> iOffsetX, <span class="keywordtype">int</span> iOffsetY)
00102 {
00103      <a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> += iOffsetX;
00104      <a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> += iOffsetY;
00105      <a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> += iOffsetX;
00106      <a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a> += iOffsetY;
00107 
00108      <span class="keywordflow">return</span> *<span class="keyword">this</span>;
00109 }
00110 
00111 
<a name="l00112"></a><a class="code" href="classwGui_1_1CRect.html#a30">00112</a> <span class="keywordtype">bool</span> CRect::Overlaps(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; r)
00113 {
00114      <span class="keywordtype">bool</span> bOverlap = <span class="keyword">false</span>;
00115 
00116      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(r.<a class="code" href="classwGui_1_1CRect.html#a13">TopLeft</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a> || <a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(r.<a class="code" href="classwGui_1_1CRect.html#a14">TopRight</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a> || <a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(r.<a class="code" href="classwGui_1_1CRect.html#a16">BottomRight</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a>
00117           || <a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(r.<a class="code" href="classwGui_1_1CRect.html#a15">BottomLeft</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a> || r.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(<a class="code" href="classwGui_1_1CRect.html#a13">TopLeft</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a> || r.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(<a class="code" href="classwGui_1_1CRect.html#a14">TopRight</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a>
00118           || r.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(<a class="code" href="classwGui_1_1CRect.html#a16">BottomRight</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a> || r.<a class="code" href="classwGui_1_1CRect.html#a32">HitTest</a>(<a class="code" href="classwGui_1_1CRect.html#a15">BottomLeft</a>()) == <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a>)
00119      {
00120           bOverlap = <span class="keyword">true</span>;
00121      }
00122 
00123 <span class="comment">// TODO: Still need to check for one more case where no corner lies in another rect</span>
00124 
00125      <span class="keywordflow">return</span> bOverlap;
00126 }
00127 
00128 
<a name="l00129"></a><a class="code" href="classwGui_1_1CRect.html#a31">00129</a> <span class="keywordtype">void</span> CRect::ClipTo(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CRect.html">CRect</a>&amp; r)
00130 {
00131      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> &lt; r.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>())
00132      {
00133           <a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> = r.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>();
00134      }
00135      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> &lt; r.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>())
00136      {
00137           <a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> = r.<a class="code" href="classwGui_1_1CRect.html#a10">Left</a>();
00138      }
00139      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> &lt; r.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>())
00140      {
00141           <a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> = r.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>();
00142      }
00143      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a> &lt; r.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>())
00144      {
00145           <a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a> = r.<a class="code" href="classwGui_1_1CRect.html#a9">Top</a>();
00146      }
00147      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> &gt; r.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>())
00148      {
00149           <a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> = r.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>();
00150      }
00151      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> &gt; r.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>())
00152      {
00153           <a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> = r.<a class="code" href="classwGui_1_1CRect.html#a11">Right</a>();
00154      }
00155      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a> &gt; r.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>())
00156      {
00157           <a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a> = r.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>();
00158      }
00159      <span class="keywordflow">if</span> (<a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> &gt; r.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>())
00160      {
00161           <a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> = r.<a class="code" href="classwGui_1_1CRect.html#a12">Bottom</a>();
00162      }
00163 }
00164 
00165 
00166 <span class="comment">// test to see if the point lies within the rect</span>
<a name="l00167"></a><a class="code" href="classwGui_1_1CRect.html#a32">00167</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> CRect::HitTest(<span class="keyword">const</span> <a class="code" href="classwGui_1_1CPoint.html">CPoint</a>&amp; p)<span class="keyword"> const</span>
00168 <span class="keyword"></span>{
00169      <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> eRelPos = 0;
00170 
00171      eRelPos |= (p.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() &lt; <a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a>) ? <a class="code" href="classwGui_1_1CRect.html#s5s2">RELPOS_LEFT</a> : 0;
00172      eRelPos |= (p.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() &lt; <a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a>) ? <a class="code" href="classwGui_1_1CRect.html#s5s0">RELPOS_ABOVE</a>: 0;
00173      eRelPos |= (p.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() &gt; <a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a>) ? <a class="code" href="classwGui_1_1CRect.html#s5s3">RELPOS_RIGHT</a> : 0;
00174      eRelPos |= (p.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() &gt; <a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a>) ? <a class="code" href="classwGui_1_1CRect.html#s5s1">RELPOS_BELOW</a>: 0;
00175      eRelPos |= (p.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() &gt;= <a class="code" href="classwGui_1_1CRect.html#n0">m_Left</a> &amp;&amp; p.<a class="code" href="classwGui_1_1CPoint.html#a6">XPos</a>() &lt;= <a class="code" href="classwGui_1_1CRect.html#n1">m_Right</a> &amp;&amp;
00176           p.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() &gt;= <a class="code" href="classwGui_1_1CRect.html#n2">m_Top</a> &amp;&amp; p.<a class="code" href="classwGui_1_1CPoint.html#a7">YPos</a>() &lt;= <a class="code" href="classwGui_1_1CRect.html#n3">m_Bottom</a>) ? <a class="code" href="classwGui_1_1CRect.html#s5s4">RELPOS_INSIDE</a> : 0;
00177 
00178      <span class="keywordflow">return</span> eRelPos;
00179 }
00180 
00181 }
00182 
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