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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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