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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 class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include "FTSize.h"</span>
<a name="l00002"></a>00002
<a name="l00003"></a>00003
<a name="l00004"></a>00004 FTSize::FTSize()
<a name="l00005"></a>00005 : ftFace(0),
<a name="l00006"></a>00006 ftSize(0),
<a name="l00007"></a>00007 size(0),
<a name="l00008"></a>00008 err(0)
<a name="l00009"></a>00009 {}
<a name="l00010"></a>00010
<a name="l00011"></a>00011
<a name="l00012"></a>00012 FTSize::~FTSize()
<a name="l00013"></a>00013 {}
<a name="l00014"></a>00014
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="keywordtype">bool</span> FTSize::CharSize( FT_Face* face, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> point_size, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> x_resolution, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> y_resolution )
<a name="l00017"></a>00017 {
<a name="l00018"></a>00018 err = FT_Set_Char_Size( *face, 0L, point_size * 64, x_resolution, y_resolution);
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="keywordflow">if</span>( !err)
<a name="l00021"></a>00021 {
<a name="l00022"></a>00022 ftFace = face;
<a name="l00023"></a>00023 size = point_size;
<a name="l00024"></a>00024 ftSize = (*ftFace)->size;
<a name="l00025"></a>00025 }
<a name="l00026"></a>00026 <span class="keywordflow">else</span>
<a name="l00027"></a>00027 {
<a name="l00028"></a>00028 ftFace = 0;
<a name="l00029"></a>00029 size = 0;
<a name="l00030"></a>00030 ftSize = 0;
<a name="l00031"></a>00031 }
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="keywordflow">return</span> !err;
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTSize::CharSize()<span class="keyword"> const</span>
<a name="l00038"></a>00038 <span class="keyword"></span>{
<a name="l00039"></a>00039 <span class="keywordflow">return</span> size;
<a name="l00040"></a>00040 }
<a name="l00041"></a>00041
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keywordtype">float</span> FTSize::Ascender()<span class="keyword"> const</span>
<a name="l00044"></a>00044 <span class="keyword"></span>{
<a name="l00045"></a>00045 <span class="keywordflow">return</span> ftSize == 0 ? 0.0f : static_cast<float>( ftSize->metrics.ascender) / 64.0f;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keywordtype">float</span> FTSize::Descender()<span class="keyword"> const</span>
<a name="l00050"></a>00050 <span class="keyword"></span>{
<a name="l00051"></a>00051 <span class="keywordflow">return</span> ftSize == 0 ? 0.0f : static_cast<float>( ftSize->metrics.descender) / 64.0f;
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053
<a name="l00054"></a>00054
<a name="l00055"></a>00055 <span class="keywordtype">float</span> FTSize::Height()<span class="keyword"> const</span>
<a name="l00056"></a>00056 <span class="keyword"></span>{
<a name="l00057"></a>00057 <span class="keywordflow">if</span>( 0 == ftSize)
<a name="l00058"></a>00058 {
<a name="l00059"></a>00059 <span class="keywordflow">return</span> 0.0f;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a>00062 <span class="keywordflow">if</span>( FT_IS_SCALABLE((*ftFace)))
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064 <span class="keywordflow">return</span> ( (*ftFace)->bbox.yMax - (*ftFace)->bbox.yMin) * ( (float)ftSize->metrics.y_ppem / (<span class="keywordtype">float</span>)(*ftFace)->units_per_EM);
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066 <span class="keywordflow">else</span>
<a name="l00067"></a>00067 {
<a name="l00068"></a>00068 <span class="keywordflow">return</span> static_cast<float>( ftSize->metrics.height) / 64.0f;
<a name="l00069"></a>00069 }
<a name="l00070"></a>00070 }
<a name="l00071"></a>00071
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordtype">float</span> FTSize::Width()<span class="keyword"> const</span>
<a name="l00074"></a>00074 <span class="keyword"></span>{
<a name="l00075"></a>00075 <span class="keywordflow">if</span>( 0 == ftSize)
<a name="l00076"></a>00076 {
<a name="l00077"></a>00077 <span class="keywordflow">return</span> 0.0f;
<a name="l00078"></a>00078 }
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <span class="keywordflow">if</span>( FT_IS_SCALABLE((*ftFace)))
<a name="l00081"></a>00081 {
<a name="l00082"></a>00082 <span class="keywordflow">return</span> ( (*ftFace)->bbox.xMax - (*ftFace)->bbox.xMin) * ( static_cast<float>(ftSize->metrics.x_ppem) / static_cast<float>((*ftFace)->units_per_EM));
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084 <span class="keywordflow">else</span>
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086 <span class="keywordflow">return</span> static_cast<float>( ftSize->metrics.max_advance) / 64.0f;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a>00090
<a name="l00091"></a>00091 <span class="keywordtype">float</span> FTSize::Underline()<span class="keyword"> const</span>
<a name="l00092"></a>00092 <span class="keyword"></span>{
<a name="l00093"></a>00093 <span class="keywordflow">return</span> 0.0f;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095
<a name="l00096"></a>00096 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTSize::XPixelsPerEm()<span class="keyword"> const</span>
<a name="l00097"></a>00097 <span class="keyword"></span>{
<a name="l00098"></a>00098 <span class="keywordflow">return</span> ftSize == 0 ? 0 : ftSize->metrics.x_ppem;
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTSize::YPixelsPerEm()<span class="keyword"> const</span>
<a name="l00102"></a>00102 <span class="keyword"></span>{
<a name="l00103"></a>00103 <span class="keywordflow">return</span> ftSize == 0 ? 0 : ftSize->metrics.y_ppem;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Wed Aug 23 03:47:29 2006 for FTGL by
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