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<h1>FTFace.cpp</h1><a href="FTFace_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <span class="preprocessor">#include "<a class="code" href="FTFace_8h.html">FTFace.h</a>"</span>
00002 <span class="preprocessor">#include "<a class="code" href="FTLibrary_8h.html">FTLibrary.h</a>"</span>
00003 
00004 <span class="preprocessor">#include FT_TRUETYPE_TABLES_H</span>
00005 <span class="preprocessor"></span>
<a name="l00006"></a><a class="code" href="classFTFace.html#a0">00006</a> <a class="code" href="classFTFace.html#a0">FTFace::FTFace</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* fontFilePath)
00007 :   numGlyphs(0),
00008     fontEncodingList(0),
00009     err(0)
00010 {
00011     <span class="keyword">const</span> FT_Long DEFAULT_FACE_INDEX = 0;
00012     ftFace = <span class="keyword">new</span> FT_Face;
00013 
00014     err = FT_New_Face( *FTLibrary::Instance().GetLibrary(), fontFilePath, DEFAULT_FACE_INDEX, ftFace);
00015 
00016     <span class="keywordflow">if</span>( err)
00017     {
00018         <span class="keyword">delete</span> ftFace;
00019         ftFace = 0;
00020     }
00021     <span class="keywordflow">else</span>
00022     {
00023         numGlyphs = (*ftFace)-&gt;num_glyphs;
00024         hasKerningTable = FT_HAS_KERNING((*ftFace));
00025     }
00026 }
00027 
00028 
<a name="l00029"></a><a class="code" href="classFTFace.html#a1">00029</a> <a class="code" href="classFTFace.html#a0">FTFace::FTFace</a>( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, size_t bufferSizeInBytes)
00030 :   numGlyphs(0),
00031     err(0)
00032 {
00033     <span class="keyword">const</span> FT_Long DEFAULT_FACE_INDEX = 0;
00034     ftFace = <span class="keyword">new</span> FT_Face;
00035 
00036     err = FT_New_Memory_Face( *FTLibrary::Instance().GetLibrary(), (FT_Byte *)pBufferBytes, bufferSizeInBytes, DEFAULT_FACE_INDEX, ftFace);
00037 
00038     <span class="keywordflow">if</span>( err)
00039     {
00040         <span class="keyword">delete</span> ftFace;
00041         ftFace = 0;
00042     }
00043     <span class="keywordflow">else</span>
00044     {
00045         numGlyphs = (*ftFace)-&gt;num_glyphs;
00046     }
00047 }
00048 
00049 
<a name="l00050"></a><a class="code" href="classFTFace.html#a2">00050</a> <a class="code" href="classFTFace.html#a2">FTFace::~FTFace</a>()
00051 {
00052     <span class="keywordflow">if</span>( ftFace)
00053     {
00054         FT_Done_Face( *ftFace);
00055         <span class="keyword">delete</span> ftFace;
00056         ftFace = 0;
00057     }
00058 }
00059 
00060 
<a name="l00061"></a><a class="code" href="classFTFace.html#a3">00061</a> <span class="keywordtype">bool</span> <a class="code" href="classFTFace.html#a3">FTFace::Attach</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* fontFilePath)
00062 {
00063     err = FT_Attach_File( *ftFace, fontFilePath);
00064     <span class="keywordflow">return</span> !err;
00065 }
00066 
00067 
<a name="l00068"></a><a class="code" href="classFTFace.html#a4">00068</a> <span class="keywordtype">bool</span> <a class="code" href="classFTFace.html#a3">FTFace::Attach</a>( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, size_t bufferSizeInBytes)
00069 {
00070     FT_Open_Args open;
00071 
00072     open.flags = <a class="code" href="FTGL_8h.html#a0">FT_OPEN_MEMORY</a>;
00073     open.memory_base = (FT_Byte *)pBufferBytes;
00074     open.memory_size = bufferSizeInBytes;
00075 
00076     err = FT_Attach_Stream( *ftFace, &amp;open);
00077     <span class="keywordflow">return</span> !err;
00078 }
00079 
00080 
<a name="l00081"></a><a class="code" href="classFTFace.html#a6">00081</a> <span class="keyword">const</span> <a class="code" href="classFTSize.html">FTSize</a>&amp; <a class="code" href="classFTFace.html#a6">FTFace::Size</a>( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> size, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> res)
00082 {
00083     charSize.<a class="code" href="classFTSize.html#a2">CharSize</a>( ftFace, size, res, res);
00084     err = charSize.<a class="code" href="classFTSize.html#a9">Error</a>();
00085 
00086     <span class="keywordflow">return</span> charSize;
00087 }
00088 
00089 
<a name="l00090"></a><a class="code" href="classFTFace.html#a7">00090</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classFTFace.html#a7">FTFace::CharMapCount</a>()
00091 {
00092     <span class="keywordflow">return</span> (*ftFace)-&gt;num_charmaps;
00093 }
00094 
00095 
<a name="l00096"></a><a class="code" href="classFTFace.html#a8">00096</a> FT_Encoding* <a class="code" href="classFTFace.html#a8">FTFace::CharMapList</a>()
00097 {
00098     <span class="keywordflow">if</span>( 0 == fontEncodingList)
00099     {
00100         fontEncodingList = <span class="keyword">new</span> FT_Encoding[<a class="code" href="classFTFace.html#a7">CharMapCount</a>()];
00101         <span class="keywordflow">for</span>( size_t encodingIndex = 0; encodingIndex &lt; <a class="code" href="classFTFace.html#a7">CharMapCount</a>(); ++encodingIndex)
00102         {
00103             fontEncodingList[encodingIndex] = (*ftFace)-&gt;charmaps[encodingIndex]-&gt;encoding;
00104         }
00105     }
00106     
00107     <span class="keywordflow">return</span> fontEncodingList;
00108 }
00109 
00110 
<a name="l00111"></a><a class="code" href="classFTFace.html#a9">00111</a> <a class="code" href="classFTPoint.html">FTPoint</a> <a class="code" href="classFTFace.html#a9">FTFace::KernAdvance</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index1, <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index2)
00112 {
00113     <span class="keywordtype">float</span> x, y;
00114     x = y = 0.0f;
00115 
00116     <span class="keywordflow">if</span>( hasKerningTable &amp;&amp; index1 &amp;&amp; index2)
00117     {
00118         FT_Vector kernAdvance;
00119         kernAdvance.x = kernAdvance.y = 0;
00120 
00121         err = FT_Get_Kerning( *ftFace, index1, index2, ft_kerning_unfitted, &amp;kernAdvance);
00122         <span class="keywordflow">if</span>( !err)
00123         {   
00124             x = static_cast&lt;float&gt;( kernAdvance.x) / 64.0f;
00125             y = static_cast&lt;float&gt;( kernAdvance.y) / 64.0f;
00126         }
00127     }
00128     
00129     <span class="keywordflow">return</span> <a class="code" href="classFTPoint.html">FTPoint</a>( x, y, 0.0);
00130 }
00131 
00132 
<a name="l00133"></a><a class="code" href="classFTFace.html#a10">00133</a> FT_GlyphSlot <a class="code" href="classFTFace.html#a10">FTFace::Glyph</a>( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> index, FT_Int load_flags)
00134 {
00135     err = FT_Load_Glyph( *ftFace, index, load_flags);
00136     <span class="keywordflow">if</span>( err)
00137     {
00138         <span class="keywordflow">return</span> NULL;
00139     }
00140 
00141     <span class="keywordflow">return</span> (*ftFace)-&gt;glyph;
00142 }
00143 
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