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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>* fontname)
<a name="l00008"></a>00008 : face( fontname),
<a name="l00009"></a>00009 glyphList(0)
<a name="l00010"></a>00010 {
<a name="l00011"></a>00011 err = face.Error();
<a name="l00012"></a>00012 <span class="keywordflow">if</span>( err == 0)
<a name="l00013"></a>00013 {
<a name="l00014"></a>00014 glyphList = <span class="keyword">new</span> FTGlyphContainer( &face);
<a name="l00015"></a>00015 }
<a name="l00016"></a>00016 }
<a name="l00017"></a>00017
<a name="l00018"></a>00018
<a name="l00019"></a>00019 FTFont::FTFont( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, size_t bufferSizeInBytes)
<a name="l00020"></a>00020 : face( pBufferBytes, bufferSizeInBytes),
<a name="l00021"></a>00021 glyphList(0)
<a name="l00022"></a>00022 {
<a name="l00023"></a>00023 err = face.Error();
<a name="l00024"></a>00024 <span class="keywordflow">if</span>( err == 0)
<a name="l00025"></a>00025 {
<a name="l00026"></a>00026 glyphList = <span class="keyword">new</span> FTGlyphContainer( &face);
<a name="l00027"></a>00027 }
<a name="l00028"></a>00028 }
<a name="l00029"></a>00029
<a name="l00030"></a>00030
<a name="l00031"></a>00031 FTFont::~FTFont()
<a name="l00032"></a>00032 {
<a name="l00033"></a>00033 <span class="keyword">delete</span> glyphList;
<a name="l00034"></a>00034 }
<a name="l00035"></a>00035
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keywordtype">bool</span> FTFont::Attach( <span class="keyword">const</span> <span class="keywordtype">char</span>* filename)
<a name="l00038"></a>00038 {
<a name="l00039"></a>00039 <span class="keywordflow">if</span>( face.Attach( filename))
<a name="l00040"></a>00040 {
<a name="l00041"></a>00041 err = 0;
<a name="l00042"></a>00042 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00043"></a>00043 }
<a name="l00044"></a>00044 <span class="keywordflow">else</span>
<a name="l00045"></a>00045 {
<a name="l00046"></a>00046 err = face.Error();
<a name="l00047"></a>00047 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00048"></a>00048 }
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051
<a name="l00052"></a>00052 <span class="keywordtype">bool</span> FTFont::Attach( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *pBufferBytes, size_t bufferSizeInBytes)
<a name="l00053"></a>00053 {
<a name="l00054"></a>00054 <span class="keywordflow">if</span>( face.Attach( pBufferBytes, bufferSizeInBytes))
<a name="l00055"></a>00055 {
<a name="l00056"></a>00056 err = 0;
<a name="l00057"></a>00057 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00058"></a>00058 }
<a name="l00059"></a>00059 <span class="keywordflow">else</span>
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 err = face.Error();
<a name="l00062"></a>00062 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00063"></a>00063 }
<a name="l00064"></a>00064 }
<a name="l00065"></a>00065
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <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="l00068"></a>00068 {
<a name="l00069"></a>00069 charSize = face.Size( size, res);
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="keywordflow">if</span>( face.Error())
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075
<a name="l00076"></a>00076 <span class="keywordflow">if</span>( glyphList != NULL)
<a name="l00077"></a>00077 {
<a name="l00078"></a>00078 <span class="keyword">delete</span> glyphList;
<a name="l00079"></a>00079 }
<a name="l00080"></a>00080
<a name="l00081"></a>00081 glyphList = <span class="keyword">new</span> FTGlyphContainer( &face);
<a name="l00082"></a>00082 <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085
<a name="l00086"></a>00086 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTFont::FaceSize()<span class="keyword"> const</span>
<a name="l00087"></a>00087 <span class="keyword"></span>{
<a name="l00088"></a>00088 <span class="keywordflow">return</span> charSize.CharSize();
<a name="l00089"></a>00089 }
<a name="l00090"></a>00090
<a name="l00091"></a>00091
<a name="l00092"></a>00092 <span class="keywordtype">bool</span> FTFont::CharMap( FT_Encoding encoding)
<a name="l00093"></a>00093 {
<a name="l00094"></a>00094 <span class="keywordtype">bool</span> result = glyphList->CharMap( encoding);
<a name="l00095"></a>00095 err = glyphList->Error();
<a name="l00096"></a>00096 <span class="keywordflow">return</span> result;
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099
<a name="l00100"></a>00100 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> FTFont::CharMapCount()
<a name="l00101"></a>00101 {
<a name="l00102"></a>00102 <span class="keywordflow">return</span> face.CharMapCount();
<a name="l00103"></a>00103 }
<a name="l00104"></a>00104
<a name="l00105"></a>00105
<a name="l00106"></a>00106 FT_Encoding* FTFont::CharMapList()
<a name="l00107"></a>00107 {
<a name="l00108"></a>00108 <span class="keywordflow">return</span> face.CharMapList();
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <span class="keywordtype">float</span> FTFont::Ascender()<span class="keyword"> const</span>
<a name="l00113"></a>00113 <span class="keyword"></span>{
<a name="l00114"></a>00114 <span class="keywordflow">return</span> charSize.Ascender();
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="keywordtype">float</span> FTFont::Descender()<span class="keyword"> const</span>
<a name="l00119"></a>00119 <span class="keyword"></span>{
<a name="l00120"></a>00120 <span class="keywordflow">return</span> charSize.Descender();
<a name="l00121"></a>00121 }
<a name="l00122"></a>00122
<a name="l00123"></a>00123
<a name="l00124"></a>00124 <span class="keywordtype">void</span> FTFont::BBox( <span class="keyword">const</span> <span class="keywordtype">char</span>* string,
<a name="l00125"></a>00125 <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="l00126"></a>00126 {
<a name="l00127"></a>00127 FTBBox totalBBox;
<a name="l00128"></a>00128
<a name="l00129"></a>00129 <span class="keywordflow">if</span>((NULL != string) && (<span class="charliteral">'\0'</span> != *string))
<a name="l00130"></a>00130 {
<a name="l00131"></a>00131 <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;
<a name="l00132"></a>00132
<a name="l00133"></a>00133 CheckGlyph( *c);
<a name="l00134"></a>00134
<a name="l00135"></a>00135 totalBBox = glyphList->BBox( *c);
<a name="l00136"></a>00136 <span class="keywordtype">float</span> advance = glyphList->Advance( *c, *(c + 1));
<a name="l00137"></a>00137 ++c;
<a name="l00138"></a>00138
<a name="l00139"></a>00139 <span class="keywordflow">while</span>( *c)
<a name="l00140"></a>00140 {
<a name="l00141"></a>00141 CheckGlyph( *c);
<a name="l00142"></a>00142 FTBBox tempBBox = glyphList->BBox( *c);
<a name="l00143"></a>00143 tempBBox.Move( FTPoint( advance, 0.0f, 0.0f));
<a name="l00144"></a>00144 totalBBox += tempBBox;
<a name="l00145"></a>00145 advance += glyphList->Advance( *c, *(c + 1));
<a name="l00146"></a>00146 ++c;
<a name="l00147"></a>00147 }
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149
<a name="l00150"></a>00150 llx = totalBBox.lowerX;
<a name="l00151"></a>00151 lly = totalBBox.lowerY;
<a name="l00152"></a>00152 llz = totalBBox.lowerZ;
<a name="l00153"></a>00153 urx = totalBBox.upperX;
<a name="l00154"></a>00154 ury = totalBBox.upperY;
<a name="l00155"></a>00155 urz = totalBBox.upperZ;
<a name="l00156"></a>00156 }
<a name="l00157"></a>00157
<a name="l00158"></a>00158
<a name="l00159"></a>00159 <span class="keywordtype">void</span> FTFont::BBox( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* string,
<a name="l00160"></a>00160 <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="l00161"></a>00161 {
<a name="l00162"></a>00162 FTBBox totalBBox;
<a name="l00163"></a>00163
<a name="l00164"></a>00164 <span class="keywordflow">if</span>((NULL != string) && (<span class="charliteral">'\0'</span> != *string))
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
<a name="l00167"></a>00167
<a name="l00168"></a>00168 CheckGlyph( *c);
<a name="l00169"></a>00169
<a name="l00170"></a>00170 totalBBox = glyphList->BBox( *c);
<a name="l00171"></a>00171 <span class="keywordtype">float</span> advance = glyphList->Advance( *c, *(c + 1));
<a name="l00172"></a>00172 ++c;
<a name="l00173"></a>00173
<a name="l00174"></a>00174 <span class="keywordflow">while</span>( *c)
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 CheckGlyph( *c);
<a name="l00177"></a>00177 FTBBox tempBBox = glyphList->BBox( *c);
<a name="l00178"></a>00178 tempBBox.Move( FTPoint( advance, 0.0f, 0.0f));
<a name="l00179"></a>00179 totalBBox += tempBBox;
<a name="l00180"></a>00180 advance += glyphList->Advance( *c, *(c + 1));
<a name="l00181"></a>00181 ++c;
<a name="l00182"></a>00182 }
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184
<a name="l00185"></a>00185 llx = totalBBox.lowerX;
<a name="l00186"></a>00186 lly = totalBBox.lowerY;
<a name="l00187"></a>00187 llz = totalBBox.lowerZ;
<a name="l00188"></a>00188 urx = totalBBox.upperX;
<a name="l00189"></a>00189 ury = totalBBox.upperY;
<a name="l00190"></a>00190 urz = totalBBox.upperZ;
<a name="l00191"></a>00191 }
<a name="l00192"></a>00192
<a name="l00193"></a>00193
<a name="l00194"></a>00194 <span class="keywordtype">float</span> FTFont::Advance( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* string)
<a name="l00195"></a>00195 {
<a name="l00196"></a>00196 <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
<a name="l00197"></a>00197 <span class="keywordtype">float</span> width = 0.0f;
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordflow">while</span>( *c)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 CheckGlyph( *c);
<a name="l00202"></a>00202 width += glyphList->Advance( *c, *(c + 1));
<a name="l00203"></a>00203 ++c;
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205
<a name="l00206"></a>00206 <span class="keywordflow">return</span> width;
<a name="l00207"></a>00207 }
<a name="l00208"></a>00208
<a name="l00209"></a>00209
<a name="l00210"></a>00210 <span class="keywordtype">float</span> FTFont::Advance( <span class="keyword">const</span> <span class="keywordtype">char</span>* string)
<a name="l00211"></a>00211 {
<a name="l00212"></a>00212 <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;
<a name="l00213"></a>00213 <span class="keywordtype">float</span> width = 0.0f;
<a name="l00214"></a>00214
<a name="l00215"></a>00215 <span class="keywordflow">while</span>( *c)
<a name="l00216"></a>00216 {
<a name="l00217"></a>00217 CheckGlyph( *c);
<a name="l00218"></a>00218 width += glyphList->Advance( *c, *(c + 1));
<a name="l00219"></a>00219 ++c;
<a name="l00220"></a>00220 }
<a name="l00221"></a>00221
<a name="l00222"></a>00222 <span class="keywordflow">return</span> width;
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225
<a name="l00226"></a>00226 <span class="keywordtype">void</span> FTFont::Render( <span class="keyword">const</span> <span class="keywordtype">char</span>* string )
<a name="l00227"></a>00227 {
<a name="l00228"></a>00228 <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;
<a name="l00229"></a>00229 pen.x = 0; pen.y = 0;
<a name="l00230"></a>00230
<a name="l00231"></a>00231 <span class="keywordflow">while</span>( *c)
<a name="l00232"></a>00232 {
<a name="l00233"></a>00233 DoRender( *c, *(c + 1));
<a name="l00234"></a>00234 ++c;
<a name="l00235"></a>00235 }
<a name="l00236"></a>00236 }
<a name="l00237"></a>00237
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordtype">void</span> FTFont::Render( <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* string )
<a name="l00240"></a>00240 {
<a name="l00241"></a>00241 <span class="keyword">const</span> <span class="keywordtype">wchar_t</span>* c = string;
<a name="l00242"></a>00242 pen.x = 0; pen.y = 0;
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="keywordflow">while</span>( *c)
<a name="l00245"></a>00245 {
<a name="l00246"></a>00246 DoRender( *c, *(c + 1));
<a name="l00247"></a>00247 ++c;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249 }
<a name="l00250"></a>00250
<a name="l00251"></a>00251
<a name="l00252"></a>00252 <span class="keywordtype">void</span> FTFont::DoRender( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> chr, <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> nextChr)
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254 CheckGlyph( chr);
<a name="l00255"></a>00255
<a name="l00256"></a>00256 FTPoint kernAdvance = glyphList->Render( chr, nextChr, pen);
<a name="l00257"></a>00257
<a name="l00258"></a>00258 pen.x += kernAdvance.x;
<a name="l00259"></a>00259 pen.y += kernAdvance.y;
<a name="l00260"></a>00260 }
<a name="l00261"></a>00261
<a name="l00262"></a>00262
<a name="l00263"></a>00263 <span class="keywordtype">void</span> FTFont::CheckGlyph( <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> characterCode)
<a name="l00264"></a>00264 {
<a name="l00265"></a>00265 <span class="keywordflow">if</span>( NULL == glyphList->Glyph( characterCode))
<a name="l00266"></a>00266 {
<a name="l00267"></a>00267 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> glyphIndex = glyphList->FontIndex( characterCode);
<a name="l00268"></a>00268 glyphList->Add( MakeGlyph( glyphIndex), characterCode);
<a name="l00269"></a>00269 }
<a name="l00270"></a>00270 }
<a name="l00271"></a>00271
</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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