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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 class="fragment"><a name="l00001"></a>00001 <span class="preprocessor">#include "FTFace.h"</span>
<a name="l00002"></a>00002 <span class="preprocessor">#include "FTFont.h"</span>
<a name="l00003"></a>00003 <span class="preprocessor">#include "FTGlyphContainer.h"</span>
<a name="l00004"></a>00004 <span class="preprocessor">#include "FTBBox.h"</span>
<a name="l00005"></a>00005
<a name="l00006"></a>00006
<a name="l00007"></a>00007 FTFont::FTFont( <span class="keyword">const</span> <span class="keywordtype">char</span>* fontFilePath)
<a name="l00008"></a>00008 : face( fontFilePath),
<a name="l00009"></a>00009 useDisplayLists(true),
<a name="l00010"></a>00010 glyphList(0)
<a name="l00011"></a>00011 {
<a name="l00012"></a>00012 err = face.Error();
<a name="l00013"></a>00013 <span class="keywordflow">if</span>( err == 0)
<a name="l00014"></a>00014 {
<a name="l00015"></a>00015 glyphList = <span class="keyword">new</span> FTGlyphContainer( &face);
<a name="l00016"></a>00016 }
<a name="l00017"></a>00017 }
<a name="l00018"></a>00018
<a name="l00019"></a>00019
<a name="l00020"></a>00020 FTFont::FTFont( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, <span class="keywordtype">size_t</span> bufferSizeInBytes)
<a name="l00021"></a>00021 : face( pBufferBytes, bufferSizeInBytes),
<a name="l00022"></a>00022 glyphList(0)
<a name="l00023"></a>00023 {
<a name="l00024"></a>00024 err = face.Error();
<a name="l00025"></a>00025 <span class="keywordflow">if</span>( err == 0)
<a name="l00026"></a>00026 {
<a name="l00027"></a>00027 glyphList = <span class="keyword">new</span> FTGlyphContainer( &face);
<a name="l00028"></a>00028 }
<a name="l00029"></a>00029 }
<a name="l00030"></a>00030
<a name="l00031"></a>00031
<a name="l00032"></a>00032 FTFont::~FTFont()
<a name="l00033"></a>00033 {
<a name="l00034"></a>00034 <span class="keyword">delete</span> glyphList;
<a name="l00035"></a>00035 }
<a name="l00036"></a>00036
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="keywordtype">bool</span> FTFont::Attach( <span class="keyword">const</span> <span class="keywordtype">char</span>* fontFilePath)
<a name="l00039"></a>00039 {
<a name="l00040"></a>00040 <span class="keywordflow">if</span>( face.Attach( fontFilePath))
<a name="l00041"></a>00041 {
<a name="l00042"></a>00042 err = 0;
<a name="l00043"></a>00043 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00044"></a>00044 }
<a name="l00045"></a>00045 <span class="keywordflow">else</span>
<a name="l00046"></a>00046 {
<a name="l00047"></a>00047 err = face.Error();
<a name="l00048"></a>00048 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050 }
<a name="l00051"></a>00051
<a name="l00052"></a>00052
<a name="l00053"></a>00053 <span class="keywordtype">bool</span> FTFont::Attach( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, <span class="keywordtype">size_t</span> bufferSizeInBytes)
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordflow">if</span>( face.Attach( pBufferBytes, bufferSizeInBytes))
<a name="l00056"></a>00056 {
<a name="l00057"></a>00057 err = 0;
<a name="l00058"></a>00058 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00059"></a>00059 }
<a name="l00060"></a>00060 <span class="keywordflow">else</span>
<a name="l00061"></a>00061 {
<a name="l00062"></a>00062 err = face.Error();
<a name="l00063"></a>00063 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067
<a name="l00068"></a>00068 <span class="keywordtype">bool</span> FTFont::FaceSize( <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 )
<a name="l00069"></a>00069 {
<a name="l00070"></a>00070 charSize = face.Size( size, res);
<a name="l00071"></a>00071 err = face.Error();
<a name="l00072"></a>00072
<a name="l00073"></a>00073 <span class="keywordflow">if</span>( err != 0)
<a name="l00074"></a>00074 {
<a name="l00075"></a>00075 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a>00078 <span class="keywordflow">if</span>( glyphList != NULL)
<a name="l00079"></a>00079 {
<a name="l00080"></a>00080 <span class="keyword">delete</span> glyphList;
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082
<a name="l00083"></a>00083 glyphList = <span class="keyword">new</span> FTGlyphContainer( &face);
<a name="l00084"></a>00084 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086
<a name="l00087"></a>00087
<a name="l00088"></a>00088 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTFont::FaceSize()<span class="keyword"> const</span>
<a name="l00089"></a>00089 <span class="keyword"></span>{
<a name="l00090"></a>00090 <span class="keywordflow">return</span> charSize.CharSize();
<a name="l00091"></a>00091 }
<a name="l00092"></a>00092
<a name="l00093"></a>00093
<a name="l00094"></a>00094 <span class="keywordtype">bool</span> FTFont::CharMap( FT_Encoding encoding)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="keywordtype">bool</span> result = glyphList->CharMap( encoding);
<a name="l00097"></a>00097 err = glyphList->Error();
<a name="l00098"></a>00098 <span class="keywordflow">return</span> result;
<a name="l00099"></a>00099 }
<a name="l00100"></a>00100
<a name="l00101"></a>00101
<a name="l00102"></a>00102 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTFont::CharMapCount()
<a name="l00103"></a>00103 {
<a name="l00104"></a>00104 <span class="keywordflow">return</span> face.CharMapCount();
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106
<a name="l00107"></a>00107
<a name="l00108"></a>00108 FT_Encoding* FTFont::CharMapList()
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 <span class="keywordflow">return</span> face.CharMapList();
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="keywordtype">void</span> FTFont::UseDisplayList( <span class="keywordtype">bool</span> useList)
<a name="l00115"></a>00115 {
<a name="l00116"></a>00116 useDisplayLists = useList;
<a name="l00117"></a>00117 }
<a name="l00118"></a>00118
<a name="l00119"></a>00119 <span class="keywordtype">float</span> FTFont::Ascender()<span class="keyword"> const</span>
<a name="l00120"></a>00120 <span class="keyword"></span>{
<a name="l00121"></a>00121 <span class="keywordflow">return</span> charSize.Ascender();
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123
<a name="l00124"></a>00124
<a name="l00125"></a>00125 <span class="keywordtype">float</span> FTFont::Descender()<span class="keyword"> const</span>
<a name="l00126"></a>00126 <span class="keyword"></span>{
<a name="l00127"></a>00127 <span class="keywordflow">return</span> charSize.Descender();
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <span class="keywordtype">float</span> FTFont::LineHeight()<span class="keyword"> const</span>
<a name="l00131"></a>00131 <span class="keyword"></span>{
<a name="l00132"></a>00132 <span class="keywordflow">return</span> charSize.Height();
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134
<a name="l00135"></a>00135 <span class="keywordtype">void</span> FTFont::BBox( <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keywordtype">string</span>,
<a name="l00136"></a>00136 <span class="keywordtype">float</span>& llx, <span class="keywordtype">float</span>& lly, <span class="keywordtype">float</span>& llz, <span class="keywordtype">float</span>& urx, <span class="keywordtype">float</span>& ury, <span class="keywordtype">float</span>& urz)
<a name="l00137"></a>00137 {
<a name="l00138"></a>00138 FTBBox totalBBox;
<a name="l00139"></a>00139
<a name="l00140"></a>00140 <span class="keywordflow">if</span>((NULL != <span class="keywordtype">string</span>) && (<span class="charliteral">'\0'</span> != *<span class="keywordtype">string</span>))
<a name="l00141"></a>00141 {
<a name="l00142"></a>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>*)<span class="keywordtype">string</span>;
<a name="l00143"></a>00143 <span class="keywordtype">float</span> advance = 0;
<a name="l00144"></a>00144
<a name="l00145"></a>00145 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00146"></a>00146 {
<a name="l00147"></a>00147 totalBBox = glyphList->BBox( *c);
<a name="l00148"></a>00148 advance = glyphList->Advance( *c, *(c + 1));
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordflow">while</span>( *++c)
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00154"></a>00154 {
<a name="l00155"></a>00155 FTBBox tempBBox = glyphList->BBox( *c);
<a name="l00156"></a>00156 tempBBox.Move( FTPoint( advance, 0.0f, 0.0f));
<a name="l00157"></a>00157 totalBBox += tempBBox;
<a name="l00158"></a>00158 advance += glyphList->Advance( *c, *(c + 1));
<a name="l00159"></a>00159 }
<a name="l00160"></a>00160 }
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162
<a name="l00163"></a>00163 llx = totalBBox.lowerX;
<a name="l00164"></a>00164 lly = totalBBox.lowerY;
<a name="l00165"></a>00165 llz = totalBBox.lowerZ;
<a name="l00166"></a>00166 urx = totalBBox.upperX;
<a name="l00167"></a>00167 ury = totalBBox.upperY;
<a name="l00168"></a>00168 urz = totalBBox.upperZ;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171
<a name="l00172"></a>00172 <span class="keywordtype">void</span> FTFont::BBox( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* <span class="keywordtype">string</span>,
<a name="l00173"></a>00173 <span class="keywordtype">float</span>& llx, <span class="keywordtype">float</span>& lly, <span class="keywordtype">float</span>& llz, <span class="keywordtype">float</span>& urx, <span class="keywordtype">float</span>& ury, <span class="keywordtype">float</span>& urz)
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175 FTBBox totalBBox;
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keywordflow">if</span>((NULL != <span class="keywordtype">string</span>) && (<span class="charliteral">'\0'</span> != *<span class="keywordtype">string</span>))
<a name="l00178"></a>00178 {
<a name="l00179"></a>00179 <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
<a name="l00180"></a>00180 <span class="keywordtype">float</span> advance = 0;
<a name="l00181"></a>00181
<a name="l00182"></a>00182 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00183"></a>00183 {
<a name="l00184"></a>00184 totalBBox = glyphList->BBox( *c);
<a name="l00185"></a>00185 advance = glyphList->Advance( *c, *(c + 1));
<a name="l00186"></a>00186 }
<a name="l00187"></a>00187
<a name="l00188"></a>00188 <span class="keywordflow">while</span>( *++c)
<a name="l00189"></a>00189 {
<a name="l00190"></a>00190 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00191"></a>00191 {
<a name="l00192"></a>00192 FTBBox tempBBox = glyphList->BBox( *c);
<a name="l00193"></a>00193 tempBBox.Move( FTPoint( advance, 0.0f, 0.0f));
<a name="l00194"></a>00194 totalBBox += tempBBox;
<a name="l00195"></a>00195 advance += glyphList->Advance( *c, *(c + 1));
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197 }
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199
<a name="l00200"></a>00200 llx = totalBBox.lowerX;
<a name="l00201"></a>00201 lly = totalBBox.lowerY;
<a name="l00202"></a>00202 llz = totalBBox.lowerZ;
<a name="l00203"></a>00203 urx = totalBBox.upperX;
<a name="l00204"></a>00204 ury = totalBBox.upperY;
<a name="l00205"></a>00205 urz = totalBBox.upperZ;
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207
<a name="l00208"></a>00208
<a name="l00209"></a>00209 <span class="keywordtype">float</span> FTFont::Advance( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* <span class="keywordtype">string</span>)
<a name="l00210"></a>00210 {
<a name="l00211"></a>00211 <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
<a name="l00212"></a>00212 <span class="keywordtype">float</span> width = 0.0f;
<a name="l00213"></a>00213
<a name="l00214"></a>00214 <span class="keywordflow">while</span>( *c)
<a name="l00215"></a>00215 {
<a name="l00216"></a>00216 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00217"></a>00217 {
<a name="l00218"></a>00218 width += glyphList->Advance( *c, *(c + 1));
<a name="l00219"></a>00219 }
<a name="l00220"></a>00220 ++c;
<a name="l00221"></a>00221 }
<a name="l00222"></a>00222
<a name="l00223"></a>00223 <span class="keywordflow">return</span> width;
<a name="l00224"></a>00224 }
<a name="l00225"></a>00225
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="keywordtype">float</span> FTFont::Advance( <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keywordtype">string</span>)
<a name="l00228"></a>00228 {
<a name="l00229"></a>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>*)<span class="keywordtype">string</span>;
<a name="l00230"></a>00230 <span class="keywordtype">float</span> width = 0.0f;
<a name="l00231"></a>00231
<a name="l00232"></a>00232 <span class="keywordflow">while</span>( *c)
<a name="l00233"></a>00233 {
<a name="l00234"></a>00234 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00235"></a>00235 {
<a name="l00236"></a>00236 width += glyphList->Advance( *c, *(c + 1));
<a name="l00237"></a>00237 }
<a name="l00238"></a>00238 ++c;
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240
<a name="l00241"></a>00241 <span class="keywordflow">return</span> width;
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00244"></a>00244
<a name="l00245"></a>00245 <span class="keywordtype">void</span> FTFont::Render( <span class="keyword">const</span> <span class="keywordtype">char</span>* <span class="keywordtype">string</span> )
<a name="l00246"></a>00246 {
<a name="l00247"></a>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>*)<span class="keywordtype">string</span>;
<a name="l00248"></a>00248 pen.X(0); pen.Y(0);
<a name="l00249"></a>00249
<a name="l00250"></a>00250 <span class="keywordflow">while</span>( *c)
<a name="l00251"></a>00251 {
<a name="l00252"></a>00252 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 pen = glyphList->Render( *c, *(c + 1), pen);
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256 ++c;
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258 }
<a name="l00259"></a>00259
<a name="l00260"></a>00260
<a name="l00261"></a>00261 <span class="keywordtype">void</span> FTFont::Render( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* <span class="keywordtype">string</span> )
<a name="l00262"></a>00262 {
<a name="l00263"></a>00263 <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
<a name="l00264"></a>00264 pen.X(0); pen.Y(0);
<a name="l00265"></a>00265
<a name="l00266"></a>00266 <span class="keywordflow">while</span>( *c)
<a name="l00267"></a>00267 {
<a name="l00268"></a>00268 <span class="keywordflow">if</span>(CheckGlyph( *c))
<a name="l00269"></a>00269 {
<a name="l00270"></a>00270 pen = glyphList->Render( *c, *(c + 1), pen);
<a name="l00271"></a>00271 }
<a name="l00272"></a>00272 ++c;
<a name="l00273"></a>00273 }
<a name="l00274"></a>00274 }
<a name="l00275"></a>00275
<a name="l00276"></a>00276
<a name="l00277"></a>00277 <span class="keywordtype">bool</span> FTFont::CheckGlyph( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> characterCode)
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279 <span class="keywordflow">if</span>( NULL == glyphList->Glyph( characterCode))
<a name="l00280"></a>00280 {
<a name="l00281"></a>00281 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> glyphIndex = glyphList->FontIndex( characterCode);
<a name="l00282"></a>00282 FTGlyph* tempGlyph = MakeGlyph( glyphIndex);
<a name="l00283"></a>00283 <span class="keywordflow">if</span>( NULL == tempGlyph)
<a name="l00284"></a>00284 {
<a name="l00285"></a>00285 <span class="keywordflow">if</span>( 0 == err)
<a name="l00286"></a>00286 {
<a name="l00287"></a>00287 err = 0x13;
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289
<a name="l00290"></a>00290 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00291"></a>00291 }
<a name="l00292"></a>00292 glyphList->Add( tempGlyph, characterCode);
<a name="l00293"></a>00293 }
<a name="l00294"></a>00294
<a name="l00295"></a>00295 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00296"></a>00296 }
<a name="l00297"></a>00297
</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Tue Dec 18 20:45:49 2007 for FTGL by
<a href="http://www.doxygen.org/index.html">
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