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<h1>FTSize.cpp</h1><a href="FTSize_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#include    "<a class="code" href="FTSize_8h.html">FTSize.h</a>"</span>
00002 
00003 
<a name="l00004"></a><a class="code" href="classFTSize.html#a0">00004</a> <a class="code" href="classFTSize.html#a0">FTSize::FTSize</a>()
00005 :   ftFace(0),
00006     ftSize(0),
00007     size(0),
00008     xResolution(0),
00009     yResolution(0),
00010     err(0)
00011 {}
00012 
00013 
<a name="l00014"></a><a class="code" href="classFTSize.html#a1">00014</a> <a class="code" href="classFTSize.html#a1">FTSize::~FTSize</a>()
00015 {}
00016 
00017 
<a name="l00018"></a><a class="code" href="classFTSize.html#a2">00018</a> <span class="keywordtype">bool</span> <a class="code" href="classFTSize.html#a3">FTSize::CharSize</a>( FT_Face* face, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> pointSize, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> xRes, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> yRes )
00019 {
00020     <span class="keywordflow">if</span>( size != pointSize || xResolution != xRes || yResolution != yRes)
00021     {
00022         err = FT_Set_Char_Size( *face, 0L, pointSize * 64, xResolution, yResolution);
00023 
00024         <span class="keywordflow">if</span>( !err)
00025         {
00026             ftFace = face;
00027             size = pointSize;
00028             xResolution = xRes;
00029             yResolution = yRes;
00030             ftSize = (*ftFace)-&gt;size;
00031         }
00032         <span class="keywordflow">else</span>
00033         {
00034             ftFace = 0;
00035             size = 0;
00036             xResolution = 0;
00037             yResolution = 0;
00038             ftSize = 0;
00039         }
00040     }
00041     
00042     <span class="keywordflow">return</span> !err;
00043 }
00044 
00045 
<a name="l00046"></a><a class="code" href="classFTSize.html#a3">00046</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classFTSize.html#a3">FTSize::CharSize</a>()<span class="keyword"> const</span>
00047 <span class="keyword"></span>{
00048     <span class="keywordflow">return</span> size;
00049 }
00050 
00051 
<a name="l00052"></a><a class="code" href="classFTSize.html#a4">00052</a> <span class="keywordtype">float</span> <a class="code" href="classFTSize.html#a4">FTSize::Ascender</a>()<span class="keyword"> const</span>
00053 <span class="keyword"></span>{
00054     <span class="keywordflow">return</span> ftSize == 0 ? 0.0f : static_cast&lt;float&gt;( ftSize-&gt;metrics.ascender) / 64.0f;
00055 }
00056 
00057 
<a name="l00058"></a><a class="code" href="classFTSize.html#a5">00058</a> <span class="keywordtype">float</span> <a class="code" href="classFTSize.html#a5">FTSize::Descender</a>()<span class="keyword"> const</span>
00059 <span class="keyword"></span>{
00060     <span class="keywordflow">return</span> ftSize == 0 ? 0.0f : static_cast&lt;float&gt;( ftSize-&gt;metrics.descender) / 64.0f;
00061 }
00062 
00063 
<a name="l00064"></a><a class="code" href="classFTSize.html#a6">00064</a> <span class="keywordtype">float</span> <a class="code" href="classFTSize.html#a6">FTSize::Height</a>()<span class="keyword"> const</span>
00065 <span class="keyword"></span>{
00066     <span class="keywordflow">if</span>( 0 == ftSize)
00067     {
00068         <span class="keywordflow">return</span> 0.0f;
00069     }
00070     
00071     <span class="keywordflow">if</span>( FT_IS_SCALABLE((*ftFace)))
00072     {
00073         <span class="keywordflow">return</span> ( (*ftFace)-&gt;bbox.yMax - (*ftFace)-&gt;bbox.yMin) * ( (<span class="keywordtype">float</span>)ftSize-&gt;metrics.y_ppem / (<span class="keywordtype">float</span>)(*ftFace)-&gt;units_per_EM);
00074     }
00075     <span class="keywordflow">else</span>
00076     {
00077         <span class="keywordflow">return</span> static_cast&lt;float&gt;( ftSize-&gt;metrics.height) / 64.0f;
00078     }
00079 }
00080 
00081 
<a name="l00082"></a><a class="code" href="classFTSize.html#a7">00082</a> <span class="keywordtype">float</span> <a class="code" href="classFTSize.html#a7">FTSize::Width</a>()<span class="keyword"> const</span>
00083 <span class="keyword"></span>{
00084     <span class="keywordflow">if</span>( 0 == ftSize)
00085     {
00086         <span class="keywordflow">return</span> 0.0f;
00087     }
00088     
00089     <span class="keywordflow">if</span>( FT_IS_SCALABLE((*ftFace)))
00090     {
00091         <span class="keywordflow">return</span> ( (*ftFace)-&gt;bbox.xMax - (*ftFace)-&gt;bbox.xMin) * ( static_cast&lt;float&gt;(ftSize-&gt;metrics.x_ppem) / static_cast&lt;float&gt;((*ftFace)-&gt;units_per_EM));
00092     }
00093     <span class="keywordflow">else</span>
00094     {
00095         <span class="keywordflow">return</span> static_cast&lt;float&gt;( ftSize-&gt;metrics.max_advance) / 64.0f;
00096     }
00097 }
00098 
00099 
<a name="l00100"></a><a class="code" href="classFTSize.html#a8">00100</a> <span class="keywordtype">float</span> <a class="code" href="classFTSize.html#a8">FTSize::Underline</a>()<span class="keyword"> const</span>
00101 <span class="keyword"></span>{
00102     <span class="keywordflow">return</span> 0.0f;
00103 }
00104 
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