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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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