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<h1>FTFont.cpp</h1><a href="FTFont_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="FTFont_8h.html">FTFont.h</a>"</span>
00003 <span class="preprocessor">#include    "<a class="code" href="FTGlyphContainer_8h.html">FTGlyphContainer.h</a>"</span>
00004 <span class="preprocessor">#include    "<a class="code" href="FTBBox_8h.html">FTBBox.h</a>"</span>
00005 
00006 
<a name="l00007"></a><a class="code" href="classFTFont.html#a0">00007</a> <a class="code" href="classFTFont.html#a0">FTFont::FTFont</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* fontFilePath)
00008 :   face( fontFilePath),
00009     useDisplayLists(true),
00010     glyphList(0)
00011 {
00012     err = <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a12">Error</a>();
00013     <span class="keywordflow">if</span>( err == 0)
00014     {
00015         glyphList = <span class="keyword">new</span> <a class="code" href="classFTGlyphContainer.html">FTGlyphContainer</a>( &amp;<a class="code" href="classFTFont.html#p0">face</a>);
00016     }
00017 }
00018 
00019 
<a name="l00020"></a><a class="code" href="classFTFont.html#a1">00020</a> <a class="code" href="classFTFont.html#a0">FTFont::FTFont</a>( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, size_t bufferSizeInBytes)
00021 :   face( pBufferBytes, bufferSizeInBytes),
00022     glyphList(0)
00023 {
00024     err = <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a12">Error</a>();
00025     <span class="keywordflow">if</span>( err == 0)
00026     {
00027         glyphList = <span class="keyword">new</span> <a class="code" href="classFTGlyphContainer.html">FTGlyphContainer</a>( &amp;<a class="code" href="classFTFont.html#p0">face</a>);
00028     }
00029 }
00030 
00031 
<a name="l00032"></a><a class="code" href="classFTFont.html#a2">00032</a> <a class="code" href="classFTFont.html#a2">FTFont::~FTFont</a>()
00033 {
00034     <span class="keyword">delete</span> glyphList;
00035 }
00036 
00037 
<a name="l00038"></a><a class="code" href="classFTFont.html#a3">00038</a> <span class="keywordtype">bool</span> <a class="code" href="classFTFont.html#a3">FTFont::Attach</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* fontFilePath)
00039 {
00040     <span class="keywordflow">if</span>( <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a3">Attach</a>( fontFilePath))
00041     {
00042         err = 0;
00043         <span class="keywordflow">return</span> <span class="keyword">true</span>;
00044     }
00045     <span class="keywordflow">else</span>
00046     {
00047         err = <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a12">Error</a>();
00048         <span class="keywordflow">return</span> <span class="keyword">false</span>;
00049     }
00050 }
00051 
00052 
<a name="l00053"></a><a class="code" href="classFTFont.html#a4">00053</a> <span class="keywordtype">bool</span> <a class="code" href="classFTFont.html#a3">FTFont::Attach</a>( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, size_t bufferSizeInBytes)
00054 {
00055     <span class="keywordflow">if</span>( <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a3">Attach</a>( pBufferBytes, bufferSizeInBytes))
00056     {
00057         err = 0;
00058         <span class="keywordflow">return</span> <span class="keyword">true</span>;
00059     }
00060     <span class="keywordflow">else</span>
00061     {
00062         err = <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a12">Error</a>();
00063         <span class="keywordflow">return</span> <span class="keyword">false</span>;
00064     }
00065 }
00066 
00067 
<a name="l00068"></a><a class="code" href="classFTFont.html#a8">00068</a> <span class="keywordtype">bool</span> <a class="code" href="classFTFont.html#a9">FTFont::FaceSize</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 )
00069 {
00070     charSize = <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a6">Size</a>( size, res);
00071     err = <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a12">Error</a>();
00072     
00073     <span class="keywordflow">if</span>( err != 0)
00074     {
00075         <span class="keywordflow">return</span> <span class="keyword">false</span>;
00076     }
00077     
00078     <span class="keywordflow">if</span>( glyphList != NULL)
00079     {
00080         <span class="keyword">delete</span> glyphList;
00081     }
00082     
00083     glyphList = <span class="keyword">new</span> <a class="code" href="classFTGlyphContainer.html">FTGlyphContainer</a>( &amp;<a class="code" href="classFTFont.html#p0">face</a>);
00084     <span class="keywordflow">return</span> <span class="keyword">true</span>;
00085 }
00086 
00087 
<a name="l00088"></a><a class="code" href="classFTFont.html#a9">00088</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classFTFont.html#a9">FTFont::FaceSize</a>()<span class="keyword"> const</span>
00089 <span class="keyword"></span>{
00090     <span class="keywordflow">return</span> charSize.<a class="code" href="classFTSize.html#a2">CharSize</a>();
00091 }
00092 
00093 
<a name="l00094"></a><a class="code" href="classFTFont.html#a5">00094</a> <span class="keywordtype">bool</span> <a class="code" href="classFTFont.html#a5">FTFont::CharMap</a>( FT_Encoding encoding)
00095 {
00096     <span class="keywordtype">bool</span> result = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a2">CharMap</a>( encoding);
00097     err = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a9">Error</a>();
00098     <span class="keywordflow">return</span> result;
00099 }
00100 
00101 
<a name="l00102"></a><a class="code" href="classFTFont.html#a6">00102</a> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> <a class="code" href="classFTFont.html#a6">FTFont::CharMapCount</a>()
00103 {
00104     <span class="keywordflow">return</span> <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a7">CharMapCount</a>();
00105 }
00106 
00107 
<a name="l00108"></a><a class="code" href="classFTFont.html#a7">00108</a> FT_Encoding* <a class="code" href="classFTFont.html#a7">FTFont::CharMapList</a>()
00109 {
00110     <span class="keywordflow">return</span> <a class="code" href="classFTFont.html#p0">face</a>.<a class="code" href="classFTFace.html#a8">CharMapList</a>();
00111 }
00112 
00113 
<a name="l00114"></a><a class="code" href="classFTFont.html#a11">00114</a> <span class="keywordtype">void</span> <a class="code" href="classFTFont.html#a11">FTFont::UseDisplayList</a>( <span class="keywordtype">bool</span> useList)
00115 {
00116     <a class="code" href="classFTFont.html#p2">useDisplayLists</a> = useList;
00117 }
00118 
<a name="l00119"></a><a class="code" href="classFTFont.html#a12">00119</a> <span class="keywordtype">float</span> <a class="code" href="classFTFont.html#a12">FTFont::Ascender</a>()<span class="keyword"> const</span>
00120 <span class="keyword"></span>{
00121     <span class="keywordflow">return</span> charSize.<a class="code" href="classFTSize.html#a4">Ascender</a>();
00122 }
00123 
00124 
<a name="l00125"></a><a class="code" href="classFTFont.html#a13">00125</a> <span class="keywordtype">float</span> <a class="code" href="classFTFont.html#a13">FTFont::Descender</a>()<span class="keyword"> const</span>
00126 <span class="keyword"></span>{
00127     <span class="keywordflow">return</span> charSize.<a class="code" href="classFTSize.html#a5">Descender</a>();
00128 }
00129 
<a name="l00130"></a><a class="code" href="classFTFont.html#a14">00130</a> <span class="keywordtype">float</span> <a class="code" href="classFTFont.html#a14">FTFont::LineHeight</a>()<span class="keyword"> const</span>
00131 <span class="keyword"></span>{
00132     <span class="keywordflow">return</span> charSize.<a class="code" href="classFTSize.html#a6">Height</a>();
00133 }
00134 
<a name="l00135"></a><a class="code" href="classFTFont.html#a15">00135</a> <span class="keywordtype">void</span> <a class="code" href="classFTFont.html#a15">FTFont::BBox</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* string,
00136                    <span class="keywordtype">float</span>&amp; llx, <span class="keywordtype">float</span>&amp; lly, <span class="keywordtype">float</span>&amp; llz, <span class="keywordtype">float</span>&amp; urx, <span class="keywordtype">float</span>&amp; ury, <span class="keywordtype">float</span>&amp; urz)
00137 {
00138     <a class="code" href="classFTBBox.html">FTBBox</a> totalBBox;
00139 
00140     <span class="keywordflow">if</span>((NULL != string) &amp;&amp; (<span class="charliteral">'\0'</span> != *string))
00141     {
00142         <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* c = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)string;
00143         <span class="keywordtype">float</span> advance = 0;
00144 
00145         <span class="keywordflow">if</span>(CheckGlyph( *c))
00146         {
00147             totalBBox = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a6">BBox</a>( *c);
00148             advance = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a7">Advance</a>( *c, *(c + 1));
00149         }
00150                 
00151         <span class="keywordflow">while</span>( *++c)
00152         {
00153             <span class="keywordflow">if</span>(CheckGlyph( *c))
00154             {
00155                 <a class="code" href="classFTBBox.html">FTBBox</a> tempBBox = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a6">BBox</a>( *c);
00156                 tempBBox.<a class="code" href="classFTBBox.html#a4">Move</a>( <a class="code" href="classFTPoint.html">FTPoint</a>( advance, 0.0f, 0.0f));
00157                 totalBBox += tempBBox;
00158                 advance += glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a7">Advance</a>( *c, *(c + 1));
00159             }
00160         }
00161     }
00162 
00163     llx = totalBBox.<a class="code" href="classFTBBox.html#o0">lowerX</a>;
00164     lly = totalBBox.<a class="code" href="classFTBBox.html#o1">lowerY</a>;
00165     llz = totalBBox.<a class="code" href="classFTBBox.html#o2">lowerZ</a>;
00166     urx = totalBBox.<a class="code" href="classFTBBox.html#o3">upperX</a>;
00167     ury = totalBBox.<a class="code" href="classFTBBox.html#o4">upperY</a>;
00168     urz = totalBBox.<a class="code" href="classFTBBox.html#o5">upperZ</a>;
00169 }
00170 
00171 
<a name="l00172"></a><a class="code" href="classFTFont.html#a16">00172</a> <span class="keywordtype">void</span> <a class="code" href="classFTFont.html#a15">FTFont::BBox</a>( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* string,
00173                    <span class="keywordtype">float</span>&amp; llx, <span class="keywordtype">float</span>&amp; lly, <span class="keywordtype">float</span>&amp; llz, <span class="keywordtype">float</span>&amp; urx, <span class="keywordtype">float</span>&amp; ury, <span class="keywordtype">float</span>&amp; urz)
00174 {
00175     <a class="code" href="classFTBBox.html">FTBBox</a> totalBBox;
00176 
00177     <span class="keywordflow">if</span>((NULL != string) &amp;&amp; (<span class="charliteral">'\0'</span> != *string))
00178     {
00179         <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
00180         <span class="keywordtype">float</span> advance = 0;
00181 
00182         <span class="keywordflow">if</span>(CheckGlyph( *c))
00183         {
00184             totalBBox = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a6">BBox</a>( *c);
00185             advance = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a7">Advance</a>( *c, *(c + 1));
00186         }
00187         
00188         <span class="keywordflow">while</span>( *++c)
00189         {
00190             <span class="keywordflow">if</span>(CheckGlyph( *c))
00191             {
00192                 <a class="code" href="classFTBBox.html">FTBBox</a> tempBBox = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a6">BBox</a>( *c);
00193                 tempBBox.<a class="code" href="classFTBBox.html#a4">Move</a>( <a class="code" href="classFTPoint.html">FTPoint</a>( advance, 0.0f, 0.0f));
00194                 totalBBox += tempBBox;
00195                 advance += glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a7">Advance</a>( *c, *(c + 1));
00196             }
00197         }
00198     }
00199 
00200     llx = totalBBox.<a class="code" href="classFTBBox.html#o0">lowerX</a>;
00201     lly = totalBBox.<a class="code" href="classFTBBox.html#o1">lowerY</a>;
00202     llz = totalBBox.<a class="code" href="classFTBBox.html#o2">lowerZ</a>;
00203     urx = totalBBox.<a class="code" href="classFTBBox.html#o3">upperX</a>;
00204     ury = totalBBox.<a class="code" href="classFTBBox.html#o4">upperY</a>;
00205     urz = totalBBox.<a class="code" href="classFTBBox.html#o5">upperZ</a>;
00206 }
00207 
00208 
<a name="l00209"></a><a class="code" href="classFTFont.html#a17">00209</a> <span class="keywordtype">float</span> <a class="code" href="classFTFont.html#a17">FTFont::Advance</a>( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* string)
00210 {
00211     <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
00212     <span class="keywordtype">float</span> width = 0.0f;
00213 
00214     <span class="keywordflow">while</span>( *c)
00215     {
00216         <span class="keywordflow">if</span>(CheckGlyph( *c))
00217         {
00218             width += glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a7">Advance</a>( *c, *(c + 1));
00219         }
00220         ++c;
00221     }
00222     
00223     <span class="keywordflow">return</span> width;
00224 }
00225 
00226 
<a name="l00227"></a><a class="code" href="classFTFont.html#a18">00227</a> <span class="keywordtype">float</span> <a class="code" href="classFTFont.html#a17">FTFont::Advance</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* string)
00228 {
00229     <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* c = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)string;
00230     <span class="keywordtype">float</span> width = 0.0f;
00231 
00232     <span class="keywordflow">while</span>( *c)
00233     {
00234         <span class="keywordflow">if</span>(CheckGlyph( *c))
00235         {
00236             width += glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a7">Advance</a>( *c, *(c + 1));
00237         }
00238         ++c;
00239     }
00240     
00241     <span class="keywordflow">return</span> width;
00242 }
00243 
00244 
<a name="l00245"></a><a class="code" href="classFTFont.html#a19">00245</a> <span class="keywordtype">void</span> <a class="code" href="classFTFont.html#a19">FTFont::Render</a>( <span class="keyword">const</span> <span class="keywordtype">char</span>* string )
00246 {
00247     <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>* c = (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*)string;
00248     pen.<a class="code" href="classFTPoint.html#a7">X</a>(0); pen.<a class="code" href="classFTPoint.html#a8">Y</a>(0);
00249 
00250     <span class="keywordflow">while</span>( *c)
00251     {
00252         <span class="keywordflow">if</span>(CheckGlyph( *c))
00253         {
00254             pen = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a8">Render</a>( *c, *(c + 1), pen);
00255         }
00256         ++c;
00257     }
00258 }
00259 
00260 
<a name="l00261"></a><a class="code" href="classFTFont.html#a20">00261</a> <span class="keywordtype">void</span> <a class="code" href="classFTFont.html#a19">FTFont::Render</a>( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* string )
00262 {
00263     <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
00264     pen.<a class="code" href="classFTPoint.html#a7">X</a>(0); pen.<a class="code" href="classFTPoint.html#a8">Y</a>(0);
00265 
00266     <span class="keywordflow">while</span>( *c)
00267     {
00268         <span class="keywordflow">if</span>(CheckGlyph( *c))
00269         {
00270             pen = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a8">Render</a>( *c, *(c + 1), pen);
00271         }
00272         ++c;
00273     }
00274 }
00275 
00276 
00277 <span class="keywordtype">bool</span> FTFont::CheckGlyph( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> characterCode)
00278 {
00279     <span class="keywordflow">if</span>( NULL == glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a5">Glyph</a>( characterCode))
00280     {
00281         <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> glyphIndex = glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a3">FontIndex</a>( characterCode);
00282         <a class="code" href="classFTGlyph.html">FTGlyph</a>* tempGlyph = <a class="code" href="classFTFont.html#b0">MakeGlyph</a>( glyphIndex);
00283         <span class="keywordflow">if</span>( NULL == tempGlyph)
00284         {
00285             <span class="keywordflow">if</span>( 0 == err)
00286             {
00287                 err = 0x13;
00288             }
00289             
00290             <span class="keywordflow">return</span> <span class="keyword">false</span>;
00291         }
00292         glyphList-&gt;<a class="code" href="classFTGlyphContainer.html#a4">Add</a>( tempGlyph, characterCode);
00293     }
00294     
00295     <span class="keywordflow">return</span> <span class="keyword">true</span>;
00296 }
00297 
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