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  19                   <a href="#harfbuzz-hb-ot-math.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
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  26 <div class="refentry">
  27 <a name="harfbuzz-hb-ot-math"></a><div class="titlepage"></div>
  28 <div class="refnamediv"><table width="100%"><tr>
  29 <td valign="top">
  30 <h2><span class="refentrytitle"><a name="harfbuzz-hb-ot-math.top_of_page"></a>hb-ot-math</span></h2>
  31 <p>hb-ot-math — OpenType Math information</p>
  32 </td>
  33 <td class="gallery_image" valign="top" align="right"></td>
  34 </tr></table></div>
  35 <div class="refsect1">
  36 <a name="harfbuzz-hb-ot-math.functions"></a><h2>Functions</h2>
  37 <div class="informaltable"><table class="informaltable" width="100%" border="0">
  38 <colgroup>
  39 <col width="150px" class="functions_return">
  40 <col class="functions_name">
  41 </colgroup>
  42 <tbody>
  43 <tr>
  44 <td class="function_type">
  45 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
  46 </td>
  47 <td class="function_name">
  48 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-has-data" title="hb_ot_math_has_data ()">hb_ot_math_has_data</a> <span class="c_punctuation">()</span>
  49 </td>
  50 </tr>
  51 <tr>
  52 <td class="function_type">
  53 <a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
  54 </td>
  55 <td class="function_name">
  56 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-constant" title="hb_ot_math_get_constant ()">hb_ot_math_get_constant</a> <span class="c_punctuation">()</span>
  57 </td>
  58 </tr>
  59 <tr>
  60 <td class="function_type">
  61 <a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
  62 </td>
  63 <td class="function_name">
  64 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-glyph-italics-correction" title="hb_ot_math_get_glyph_italics_correction ()">hb_ot_math_get_glyph_italics_correction</a> <span class="c_punctuation">()</span>
  65 </td>
  66 </tr>
  67 <tr>
  68 <td class="function_type">
  69 <a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
  70 </td>
  71 <td class="function_name">
  72 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-glyph-top-accent-attachment" title="hb_ot_math_get_glyph_top_accent_attachment ()">hb_ot_math_get_glyph_top_accent_attachment</a> <span class="c_punctuation">()</span>
  73 </td>
  74 </tr>
  75 <tr>
  76 <td class="function_type">
  77 <a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
  78 </td>
  79 <td class="function_name">
  80 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-glyph-kerning" title="hb_ot_math_get_glyph_kerning ()">hb_ot_math_get_glyph_kerning</a> <span class="c_punctuation">()</span>
  81 </td>
  82 </tr>
  83 <tr>
  84 <td class="function_type">
  85 <a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
  86 </td>
  87 <td class="function_name">
  88 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-is-glyph-extended-shape" title="hb_ot_math_is_glyph_extended_shape ()">hb_ot_math_is_glyph_extended_shape</a> <span class="c_punctuation">()</span>
  89 </td>
  90 </tr>
  91 <tr>
  92 <td class="function_type">unsigned <span class="returnvalue">int</span>
  93 </td>
  94 <td class="function_name">
  95 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-glyph-variants" title="hb_ot_math_get_glyph_variants ()">hb_ot_math_get_glyph_variants</a> <span class="c_punctuation">()</span>
  96 </td>
  97 </tr>
  98 <tr>
  99 <td class="function_type">
 100 <a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
 101 </td>
 102 <td class="function_name">
 103 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-min-connector-overlap" title="hb_ot_math_get_min_connector_overlap ()">hb_ot_math_get_min_connector_overlap</a> <span class="c_punctuation">()</span>
 104 </td>
 105 </tr>
 106 <tr>
 107 <td class="function_type">unsigned <span class="returnvalue">int</span>
 108 </td>
 109 <td class="function_name">
 110 <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-get-glyph-assembly" title="hb_ot_math_get_glyph_assembly ()">hb_ot_math_get_glyph_assembly</a> <span class="c_punctuation">()</span>
 111 </td>
 112 </tr>
 113 </tbody>
 114 </table></div>
 115 </div>
 116 <a name="hb-ot-math-glyph-variant-t"></a><a name="hb-ot-math-glyph-part-t"></a><div class="refsect1">
 117 <a name="harfbuzz-hb-ot-math.other"></a><h2>Types and Values</h2>
 118 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 119 <colgroup>
 120 <col width="150px" class="name">
 121 <col class="description">
 122 </colgroup>
 123 <tbody>
 124 <tr>
 125 <td class="define_keyword">#define</td>
 126 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#HB-OT-TAG-MATH:CAPS" title="HB_OT_TAG_MATH">HB_OT_TAG_MATH</a></td>
 127 </tr>
 128 <tr>
 129 <td class="define_keyword">#define</td>
 130 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#HB-OT-MATH-SCRIPT:CAPS" title="HB_OT_MATH_SCRIPT">HB_OT_MATH_SCRIPT</a></td>
 131 </tr>
 132 <tr>
 133 <td class="datatype_keyword">enum</td>
 134 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-constant-t" title="enum hb_ot_math_constant_t">hb_ot_math_constant_t</a></td>
 135 </tr>
 136 <tr>
 137 <td class="datatype_keyword">enum</td>
 138 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-kern-t" title="enum hb_ot_math_kern_t">hb_ot_math_kern_t</a></td>
 139 </tr>
 140 <tr>
 141 <td class="datatype_keyword"> </td>
 142 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-variant-t-struct" title="hb_ot_math_glyph_variant_t">hb_ot_math_glyph_variant_t</a></td>
 143 </tr>
 144 <tr>
 145 <td class="datatype_keyword">enum</td>
 146 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-part-flags-t" title="enum hb_ot_math_glyph_part_flags_t">hb_ot_math_glyph_part_flags_t</a></td>
 147 </tr>
 148 <tr>
 149 <td class="datatype_keyword"> </td>
 150 <td class="function_name"><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-part-t-struct" title="hb_ot_math_glyph_part_t">hb_ot_math_glyph_part_t</a></td>
 151 </tr>
 152 </tbody>
 153 </table></div>
 154 </div>
 155 <div class="refsect1">
 156 <a name="harfbuzz-hb-ot-math.object-hierarchy"></a><h2>Object Hierarchy</h2>
 157 <pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-Boxed-Types.html">GBoxed</a>
 158     <span class="lineart">├──</span> hb_ot_math_glyph_part_t
 159     <span class="lineart">╰──</span> hb_ot_math_glyph_variant_t
 160     <a href="/usr/share/gtk-doc/html/gobject/gobject-Enumeration-and-Flag-Types.html">GEnum</a>
 161     <span class="lineart">├──</span> hb_ot_math_constant_t
 162     <span class="lineart">╰──</span> hb_ot_math_kern_t
 163     <a href="/usr/share/gtk-doc/html/gobject/gobject-Enumeration-and-Flag-Types.html">GFlags</a>
 164     <span class="lineart">╰──</span> hb_ot_math_glyph_part_flags_t
 165 </pre>
 166 </div>
 167 <div class="refsect1">
 168 <a name="harfbuzz-hb-ot-math.includes"></a><h2>Includes</h2>
 169 <pre class="synopsis">#include &lt;hb-ot.h&gt;
 170 </pre>
 171 </div>
 172 <div class="refsect1">
 173 <a name="harfbuzz-hb-ot-math.description"></a><h2>Description</h2>
 174 <p>Functions for fetching mathematics layout data from OpenType fonts.</p>
 175 </div>
 176 <div class="refsect1">
 177 <a name="harfbuzz-hb-ot-math.functions_details"></a><h2>Functions</h2>
 178 <div class="refsect2">
 179 <a name="hb-ot-math-has-data"></a><h3>hb_ot_math_has_data ()</h3>
 180 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 181 hb_ot_math_has_data (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t"><span class="type">hb_face_t</span></a> *face</code></em>);</pre>
 182 <p>This function allows to verify the presence of an OpenType MATH table on the
 183 face.</p>
 184 <div class="refsect3">
 185 <a name="hb-ot-math-has-data.parameters"></a><h4>Parameters</h4>
 186 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 187 <colgroup>
 188 <col width="150px" class="parameters_name">
 189 <col class="parameters_description">
 190 <col width="200px" class="parameters_annotations">
 191 </colgroup>
 192 <tbody><tr>
 193 <td class="parameter_name"><p>face</p></td>
 194 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-face.html#hb-face-t"><span class="type">hb_face_t</span></a> to test</p></td>
 195 <td class="parameter_annotations"> </td>
 196 </tr></tbody>
 197 </table></div>
 198 </div>
 199 <div class="refsect3">
 200 <a name="hb-ot-math-has-data.returns"></a><h4>Returns</h4>
 201 <p> true if face has a MATH table, false otherwise</p>
 202 </div>
 203 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 204 </div>
 205 <hr>
 206 <div class="refsect2">
 207 <a name="hb-ot-math-get-constant"></a><h3>hb_ot_math_get_constant ()</h3>
 208 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
 209 hb_ot_math_get_constant (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 210                          <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-constant-t" title="enum hb_ot_math_constant_t"><span class="type">hb_ot_math_constant_t</span></a> constant</code></em>);</pre>
 211 <p>This function returns the requested math constants as a <a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="type">hb_position_t</span></a>.
 212 If the request constant is HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN,
 213 HB_OT_MATH_CONSTANT_SCRIPT_SCRIPT_PERCENT_SCALE_DOWN or
 214 HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN then the return value is
 215 actually an integer between 0 and 100 representing that percentage.</p>
 216 <div class="refsect3">
 217 <a name="hb-ot-math-get-constant.parameters"></a><h4>Parameters</h4>
 218 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 219 <colgroup>
 220 <col width="150px" class="parameters_name">
 221 <col class="parameters_description">
 222 <col width="200px" class="parameters_annotations">
 223 </colgroup>
 224 <tbody>
 225 <tr>
 226 <td class="parameter_name"><p>font</p></td>
 227 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the value</p></td>
 228 <td class="parameter_annotations"> </td>
 229 </tr>
 230 <tr>
 231 <td class="parameter_name"><p>constant</p></td>
 232 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-constant-t" title="enum hb_ot_math_constant_t"><span class="type">hb_ot_math_constant_t</span></a> the constant to retrieve</p></td>
 233 <td class="parameter_annotations"> </td>
 234 </tr>
 235 </tbody>
 236 </table></div>
 237 </div>
 238 <div class="refsect3">
 239 <a name="hb-ot-math-get-constant.returns"></a><h4>Returns</h4>
 240 <p> the requested constant or 0</p>
 241 </div>
 242 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 243 </div>
 244 <hr>
 245 <div class="refsect2">
 246 <a name="hb-ot-math-get-glyph-italics-correction"></a><h3>hb_ot_math_get_glyph_italics_correction ()</h3>
 247 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
 248 hb_ot_math_get_glyph_italics_correction
 249                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 250                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>);</pre>
 251 <div class="refsect3">
 252 <a name="hb-ot-math-get-glyph-italics-correction.parameters"></a><h4>Parameters</h4>
 253 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 254 <colgroup>
 255 <col width="150px" class="parameters_name">
 256 <col class="parameters_description">
 257 <col width="200px" class="parameters_annotations">
 258 </colgroup>
 259 <tbody>
 260 <tr>
 261 <td class="parameter_name"><p>font</p></td>
 262 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the value</p></td>
 263 <td class="parameter_annotations"> </td>
 264 </tr>
 265 <tr>
 266 <td class="parameter_name"><p>glyph</p></td>
 267 <td class="parameter_description"><p>glyph index from which to retrieve the value</p></td>
 268 <td class="parameter_annotations"> </td>
 269 </tr>
 270 </tbody>
 271 </table></div>
 272 </div>
 273 <div class="refsect3">
 274 <a name="hb-ot-math-get-glyph-italics-correction.returns"></a><h4>Returns</h4>
 275 <p> the italics correction of the glyph or 0</p>
 276 </div>
 277 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 278 </div>
 279 <hr>
 280 <div class="refsect2">
 281 <a name="hb-ot-math-get-glyph-top-accent-attachment"></a><h3>hb_ot_math_get_glyph_top_accent_attachment ()</h3>
 282 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
 283 hb_ot_math_get_glyph_top_accent_attachment
 284                                (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 285                                 <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>);</pre>
 286 <div class="refsect3">
 287 <a name="hb-ot-math-get-glyph-top-accent-attachment.parameters"></a><h4>Parameters</h4>
 288 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 289 <colgroup>
 290 <col width="150px" class="parameters_name">
 291 <col class="parameters_description">
 292 <col width="200px" class="parameters_annotations">
 293 </colgroup>
 294 <tbody>
 295 <tr>
 296 <td class="parameter_name"><p>font</p></td>
 297 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the value</p></td>
 298 <td class="parameter_annotations"> </td>
 299 </tr>
 300 <tr>
 301 <td class="parameter_name"><p>glyph</p></td>
 302 <td class="parameter_description"><p>glyph index from which to retrieve the value</p></td>
 303 <td class="parameter_annotations"> </td>
 304 </tr>
 305 </tbody>
 306 </table></div>
 307 </div>
 308 <div class="refsect3">
 309 <a name="hb-ot-math-get-glyph-top-accent-attachment.returns"></a><h4>Returns</h4>
 310 <p> the top accent attachment of the glyph or 0</p>
 311 </div>
 312 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 313 </div>
 314 <hr>
 315 <div class="refsect2">
 316 <a name="hb-ot-math-get-glyph-kerning"></a><h3>hb_ot_math_get_glyph_kerning ()</h3>
 317 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
 318 hb_ot_math_get_glyph_kerning (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 319                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
 320                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-kern-t" title="enum hb_ot_math_kern_t"><span class="type">hb_ot_math_kern_t</span></a> kern</code></em>,
 321                               <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="type">hb_position_t</span></a> correction_height</code></em>);</pre>
 322 <p>This function tries to retrieve the MathKern table for the specified font,
 323 glyph and <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-kern-t" title="enum hb_ot_math_kern_t"><span class="type">hb_ot_math_kern_t</span></a>. Then it browses the list of heights from the
 324 MathKern table to find one value that is greater or equal to specified
 325 correction_height. If one is found the corresponding value from the list of
 326 kerns is returned and otherwise the last kern value is returned.</p>
 327 <div class="refsect3">
 328 <a name="hb-ot-math-get-glyph-kerning.parameters"></a><h4>Parameters</h4>
 329 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 330 <colgroup>
 331 <col width="150px" class="parameters_name">
 332 <col class="parameters_description">
 333 <col width="200px" class="parameters_annotations">
 334 </colgroup>
 335 <tbody>
 336 <tr>
 337 <td class="parameter_name"><p>font</p></td>
 338 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the value</p></td>
 339 <td class="parameter_annotations"> </td>
 340 </tr>
 341 <tr>
 342 <td class="parameter_name"><p>glyph</p></td>
 343 <td class="parameter_description"><p>glyph index from which to retrieve the value</p></td>
 344 <td class="parameter_annotations"> </td>
 345 </tr>
 346 <tr>
 347 <td class="parameter_name"><p>kern</p></td>
 348 <td class="parameter_description"><p>the <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-kern-t" title="enum hb_ot_math_kern_t"><span class="type">hb_ot_math_kern_t</span></a> from which to retrieve the value</p></td>
 349 <td class="parameter_annotations"> </td>
 350 </tr>
 351 <tr>
 352 <td class="parameter_name"><p>correction_height</p></td>
 353 <td class="parameter_description"><p>the correction height to use to determine the kerning.</p></td>
 354 <td class="parameter_annotations"> </td>
 355 </tr>
 356 </tbody>
 357 </table></div>
 358 </div>
 359 <div class="refsect3">
 360 <a name="hb-ot-math-get-glyph-kerning.returns"></a><h4>Returns</h4>
 361 <p> requested kerning or 0</p>
 362 </div>
 363 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 364 </div>
 365 <hr>
 366 <div class="refsect2">
 367 <a name="hb-ot-math-is-glyph-extended-shape"></a><h3>hb_ot_math_is_glyph_extended_shape ()</h3>
 368 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-bool-t" title="hb_bool_t"><span class="returnvalue">hb_bool_t</span></a>
 369 hb_ot_math_is_glyph_extended_shape (<em class="parameter"><code><a class="link" href="harfbuzz-hb-face.html#hb-face-t"><span class="type">hb_face_t</span></a> *face</code></em>,
 370                                     <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>);</pre>
 371 <div class="refsect3">
 372 <a name="hb-ot-math-is-glyph-extended-shape.parameters"></a><h4>Parameters</h4>
 373 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 374 <colgroup>
 375 <col width="150px" class="parameters_name">
 376 <col class="parameters_description">
 377 <col width="200px" class="parameters_annotations">
 378 </colgroup>
 379 <tbody>
 380 <tr>
 381 <td class="parameter_name"><p>face</p></td>
 382 <td class="parameter_description"><p>a <a class="link" href="harfbuzz-hb-face.html#hb-face-t"><span class="type">hb_face_t</span></a> to test</p></td>
 383 <td class="parameter_annotations"> </td>
 384 </tr>
 385 <tr>
 386 <td class="parameter_name"><p>glyph</p></td>
 387 <td class="parameter_description"><p>a glyph index to test</p></td>
 388 <td class="parameter_annotations"> </td>
 389 </tr>
 390 </tbody>
 391 </table></div>
 392 </div>
 393 <div class="refsect3">
 394 <a name="hb-ot-math-is-glyph-extended-shape.returns"></a><h4>Returns</h4>
 395 <p> true if the glyph is an extended shape, false otherwise</p>
 396 </div>
 397 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 398 </div>
 399 <hr>
 400 <div class="refsect2">
 401 <a name="hb-ot-math-get-glyph-variants"></a><h3>hb_ot_math_get_glyph_variants ()</h3>
 402 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 403 hb_ot_math_get_glyph_variants (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 404                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
 405                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-direction-t" title="enum hb_direction_t"><span class="type">hb_direction_t</span></a> direction</code></em>,
 406                                <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 407                                <em class="parameter"><code>unsigned <span class="type">int</span> *variants_count</code></em>,
 408                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-variant-t"><span class="type">hb_ot_math_glyph_variant_t</span></a> *variants</code></em>);</pre>
 409 <p>This function tries to retrieve the MathGlyphConstruction for the specified
 410 font, glyph and direction. Note that only the value of
 411 <a class="link" href="harfbuzz-hb-common.html#HB-DIRECTION-IS-HORIZONTAL:CAPS" title="HB_DIRECTION_IS_HORIZONTAL()"><span class="type">HB_DIRECTION_IS_HORIZONTAL</span></a> is considered. It provides the corresponding list
 412 of size variants as an array of hb_ot_math_glyph_variant_t structs.</p>
 413 <div class="refsect3">
 414 <a name="hb-ot-math-get-glyph-variants.parameters"></a><h4>Parameters</h4>
 415 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 416 <colgroup>
 417 <col width="150px" class="parameters_name">
 418 <col class="parameters_description">
 419 <col width="200px" class="parameters_annotations">
 420 </colgroup>
 421 <tbody>
 422 <tr>
 423 <td class="parameter_name"><p>font</p></td>
 424 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the values</p></td>
 425 <td class="parameter_annotations"> </td>
 426 </tr>
 427 <tr>
 428 <td class="parameter_name"><p>glyph</p></td>
 429 <td class="parameter_description"><p>index of the glyph to stretch</p></td>
 430 <td class="parameter_annotations"> </td>
 431 </tr>
 432 <tr>
 433 <td class="parameter_name"><p>direction</p></td>
 434 <td class="parameter_description"><p>direction of the stretching</p></td>
 435 <td class="parameter_annotations"> </td>
 436 </tr>
 437 <tr>
 438 <td class="parameter_name"><p>start_offset</p></td>
 439 <td class="parameter_description"><p>offset of the first variant to retrieve</p></td>
 440 <td class="parameter_annotations"> </td>
 441 </tr>
 442 <tr>
 443 <td class="parameter_name"><p>variants_count</p></td>
 444 <td class="parameter_description"><p>maximum number of variants to retrieve after start_offset
 445 (IN) and actual number of variants retrieved (OUT)</p></td>
 446 <td class="parameter_annotations"> </td>
 447 </tr>
 448 <tr>
 449 <td class="parameter_name"><p>variants</p></td>
 450 <td class="parameter_description"><p>array of size at least <em class="parameter"><code>variants_count</code></em>
 451 to store the result</p></td>
 452 <td class="parameter_annotations"> </td>
 453 </tr>
 454 </tbody>
 455 </table></div>
 456 </div>
 457 <div class="refsect3">
 458 <a name="hb-ot-math-get-glyph-variants.returns"></a><h4>Returns</h4>
 459 <p> the total number of size variants available or 0</p>
 460 </div>
 461 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 462 </div>
 463 <hr>
 464 <div class="refsect2">
 465 <a name="hb-ot-math-get-min-connector-overlap"></a><h3>hb_ot_math_get_min_connector_overlap ()</h3>
 466 <pre class="programlisting"><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="returnvalue">hb_position_t</span></a>
 467 hb_ot_math_get_min_connector_overlap (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 468                                       <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-direction-t" title="enum hb_direction_t"><span class="type">hb_direction_t</span></a> direction</code></em>);</pre>
 469 <p>This function tries to retrieve the MathVariants table for the specified
 470 font and returns the minimum overlap of connecting glyphs to draw a glyph
 471 assembly in the specified direction. Note that only the value of
 472 <a class="link" href="harfbuzz-hb-common.html#HB-DIRECTION-IS-HORIZONTAL:CAPS" title="HB_DIRECTION_IS_HORIZONTAL()"><span class="type">HB_DIRECTION_IS_HORIZONTAL</span></a> is considered.</p>
 473 <div class="refsect3">
 474 <a name="hb-ot-math-get-min-connector-overlap.parameters"></a><h4>Parameters</h4>
 475 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 476 <colgroup>
 477 <col width="150px" class="parameters_name">
 478 <col class="parameters_description">
 479 <col width="200px" class="parameters_annotations">
 480 </colgroup>
 481 <tbody>
 482 <tr>
 483 <td class="parameter_name"><p>font</p></td>
 484 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the value</p></td>
 485 <td class="parameter_annotations"> </td>
 486 </tr>
 487 <tr>
 488 <td class="parameter_name"><p>direction</p></td>
 489 <td class="parameter_description"><p>direction of the stretching</p></td>
 490 <td class="parameter_annotations"> </td>
 491 </tr>
 492 </tbody>
 493 </table></div>
 494 </div>
 495 <div class="refsect3">
 496 <a name="hb-ot-math-get-min-connector-overlap.returns"></a><h4>Returns</h4>
 497 <p> requested min connector overlap or 0</p>
 498 </div>
 499 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 500 </div>
 501 <hr>
 502 <div class="refsect2">
 503 <a name="hb-ot-math-get-glyph-assembly"></a><h3>hb_ot_math_get_glyph_assembly ()</h3>
 504 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 505 hb_ot_math_get_glyph_assembly (<em class="parameter"><code><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> *font</code></em>,
 506                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-codepoint-t" title="hb_codepoint_t"><span class="type">hb_codepoint_t</span></a> glyph</code></em>,
 507                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-direction-t" title="enum hb_direction_t"><span class="type">hb_direction_t</span></a> direction</code></em>,
 508                                <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 509                                <em class="parameter"><code>unsigned <span class="type">int</span> *parts_count</code></em>,
 510                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-part-t"><span class="type">hb_ot_math_glyph_part_t</span></a> *parts</code></em>,
 511                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-common.html#hb-position-t" title="hb_position_t"><span class="type">hb_position_t</span></a> *italics_correction</code></em>);</pre>
 512 <p>This function tries to retrieve the GlyphAssembly for the specified font,
 513 glyph and direction. Note that only the value of <a class="link" href="harfbuzz-hb-common.html#HB-DIRECTION-IS-HORIZONTAL:CAPS" title="HB_DIRECTION_IS_HORIZONTAL()"><span class="type">HB_DIRECTION_IS_HORIZONTAL</span></a>
 514 is considered. It provides the information necessary to draw the glyph
 515 assembly as an array of <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-part-t"><span class="type">hb_ot_math_glyph_part_t</span></a>.</p>
 516 <div class="refsect3">
 517 <a name="hb-ot-math-get-glyph-assembly.parameters"></a><h4>Parameters</h4>
 518 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 519 <colgroup>
 520 <col width="150px" class="parameters_name">
 521 <col class="parameters_description">
 522 <col width="200px" class="parameters_annotations">
 523 </colgroup>
 524 <tbody>
 525 <tr>
 526 <td class="parameter_name"><p>font</p></td>
 527 <td class="parameter_description"><p><a class="link" href="harfbuzz-hb-font.html#hb-font-t"><span class="type">hb_font_t</span></a> from which to retrieve the values</p></td>
 528 <td class="parameter_annotations"> </td>
 529 </tr>
 530 <tr>
 531 <td class="parameter_name"><p>glyph</p></td>
 532 <td class="parameter_description"><p>index of the glyph to stretch</p></td>
 533 <td class="parameter_annotations"> </td>
 534 </tr>
 535 <tr>
 536 <td class="parameter_name"><p>direction</p></td>
 537 <td class="parameter_description"><p>direction of the stretching</p></td>
 538 <td class="parameter_annotations"> </td>
 539 </tr>
 540 <tr>
 541 <td class="parameter_name"><p>start_offset</p></td>
 542 <td class="parameter_description"><p>offset of the first glyph part to retrieve</p></td>
 543 <td class="parameter_annotations"> </td>
 544 </tr>
 545 <tr>
 546 <td class="parameter_name"><p>parts_count</p></td>
 547 <td class="parameter_description"><p>maximum number of glyph parts to retrieve after start_offset
 548 (IN) and actual number of parts retrieved (OUT)</p></td>
 549 <td class="parameter_annotations"> </td>
 550 </tr>
 551 <tr>
 552 <td class="parameter_name"><p>parts</p></td>
 553 <td class="parameter_description"><p>array of size at least <em class="parameter"><code>parts_count</code></em>
 554 to store the result</p></td>
 555 <td class="parameter_annotations"> </td>
 556 </tr>
 557 <tr>
 558 <td class="parameter_name"><p>italics_correction</p></td>
 559 <td class="parameter_description"><p>italic correction of the glyph assembly</p></td>
 560 <td class="parameter_annotations"> </td>
 561 </tr>
 562 </tbody>
 563 </table></div>
 564 </div>
 565 <div class="refsect3">
 566 <a name="hb-ot-math-get-glyph-assembly.returns"></a><h4>Returns</h4>
 567 <p> the total number of parts in the glyph assembly</p>
 568 </div>
 569 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 570 </div>
 571 </div>
 572 <div class="refsect1">
 573 <a name="harfbuzz-hb-ot-math.other_details"></a><h2>Types and Values</h2>
 574 <div class="refsect2">
 575 <a name="HB-OT-TAG-MATH:CAPS"></a><h3>HB_OT_TAG_MATH</h3>
 576 <pre class="programlisting">#define HB_OT_TAG_MATH HB_TAG('M','A','T','H')
 577 </pre>
 578 </div>
 579 <hr>
 580 <div class="refsect2">
 581 <a name="HB-OT-MATH-SCRIPT:CAPS"></a><h3>HB_OT_MATH_SCRIPT</h3>
 582 <pre class="programlisting">#define HB_OT_MATH_SCRIPT HB_TAG('m','a','t','h')
 583 </pre>
 584 </div>
 585 <hr>
 586 <div class="refsect2">
 587 <a name="hb-ot-math-constant-t"></a><h3>enum hb_ot_math_constant_t</h3>
 588 <div class="refsect3">
 589 <a name="hb-ot-math-constant-t.members"></a><h4>Members</h4>
 590 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 591 <colgroup>
 592 <col width="300px" class="enum_members_name">
 593 <col class="enum_members_description">
 594 <col width="200px" class="enum_members_annotations">
 595 </colgroup>
 596 <tbody>
 597 <tr>
 598 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SCRIPT-PERCENT-SCALE-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN</p></td>
 599 <td> </td>
 600 <td> </td>
 601 </tr>
 602 <tr>
 603 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SCRIPT-SCRIPT-PERCENT-SCALE-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_SCRIPT_SCRIPT_PERCENT_SCALE_DOWN</p></td>
 604 <td> </td>
 605 <td> </td>
 606 </tr>
 607 <tr>
 608 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-DELIMITED-SUB-FORMULA-MIN-HEIGHT:CAPS"></a>HB_OT_MATH_CONSTANT_DELIMITED_SUB_FORMULA_MIN_HEIGHT</p></td>
 609 <td> </td>
 610 <td> </td>
 611 </tr>
 612 <tr>
 613 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-DISPLAY-OPERATOR-MIN-HEIGHT:CAPS"></a>HB_OT_MATH_CONSTANT_DISPLAY_OPERATOR_MIN_HEIGHT</p></td>
 614 <td> </td>
 615 <td> </td>
 616 </tr>
 617 <tr>
 618 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-MATH-LEADING:CAPS"></a>HB_OT_MATH_CONSTANT_MATH_LEADING</p></td>
 619 <td> </td>
 620 <td> </td>
 621 </tr>
 622 <tr>
 623 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-AXIS-HEIGHT:CAPS"></a>HB_OT_MATH_CONSTANT_AXIS_HEIGHT</p></td>
 624 <td> </td>
 625 <td> </td>
 626 </tr>
 627 <tr>
 628 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-ACCENT-BASE-HEIGHT:CAPS"></a>HB_OT_MATH_CONSTANT_ACCENT_BASE_HEIGHT</p></td>
 629 <td> </td>
 630 <td> </td>
 631 </tr>
 632 <tr>
 633 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FLATTENED-ACCENT-BASE-HEIGHT:CAPS"></a>HB_OT_MATH_CONSTANT_FLATTENED_ACCENT_BASE_HEIGHT</p></td>
 634 <td> </td>
 635 <td> </td>
 636 </tr>
 637 <tr>
 638 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUBSCRIPT-SHIFT-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_SUBSCRIPT_SHIFT_DOWN</p></td>
 639 <td> </td>
 640 <td> </td>
 641 </tr>
 642 <tr>
 643 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUBSCRIPT-TOP-MAX:CAPS"></a>HB_OT_MATH_CONSTANT_SUBSCRIPT_TOP_MAX</p></td>
 644 <td> </td>
 645 <td> </td>
 646 </tr>
 647 <tr>
 648 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUBSCRIPT-BASELINE-DROP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_SUBSCRIPT_BASELINE_DROP_MIN</p></td>
 649 <td> </td>
 650 <td> </td>
 651 </tr>
 652 <tr>
 653 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUPERSCRIPT-SHIFT-UP:CAPS"></a>HB_OT_MATH_CONSTANT_SUPERSCRIPT_SHIFT_UP</p></td>
 654 <td> </td>
 655 <td> </td>
 656 </tr>
 657 <tr>
 658 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUPERSCRIPT-SHIFT-UP-CRAMPED:CAPS"></a>HB_OT_MATH_CONSTANT_SUPERSCRIPT_SHIFT_UP_CRAMPED</p></td>
 659 <td> </td>
 660 <td> </td>
 661 </tr>
 662 <tr>
 663 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUPERSCRIPT-BOTTOM-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_SUPERSCRIPT_BOTTOM_MIN</p></td>
 664 <td> </td>
 665 <td> </td>
 666 </tr>
 667 <tr>
 668 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUPERSCRIPT-BASELINE-DROP-MAX:CAPS"></a>HB_OT_MATH_CONSTANT_SUPERSCRIPT_BASELINE_DROP_MAX</p></td>
 669 <td> </td>
 670 <td> </td>
 671 </tr>
 672 <tr>
 673 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUB-SUPERSCRIPT-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_SUB_SUPERSCRIPT_GAP_MIN</p></td>
 674 <td> </td>
 675 <td> </td>
 676 </tr>
 677 <tr>
 678 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SUPERSCRIPT-BOTTOM-MAX-WITH-SUBSCRIPT:CAPS"></a>HB_OT_MATH_CONSTANT_SUPERSCRIPT_BOTTOM_MAX_WITH_SUBSCRIPT</p></td>
 679 <td> </td>
 680 <td> </td>
 681 </tr>
 682 <tr>
 683 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SPACE-AFTER-SCRIPT:CAPS"></a>HB_OT_MATH_CONSTANT_SPACE_AFTER_SCRIPT</p></td>
 684 <td> </td>
 685 <td> </td>
 686 </tr>
 687 <tr>
 688 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-UPPER-LIMIT-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_UPPER_LIMIT_GAP_MIN</p></td>
 689 <td> </td>
 690 <td> </td>
 691 </tr>
 692 <tr>
 693 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-UPPER-LIMIT-BASELINE-RISE-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_UPPER_LIMIT_BASELINE_RISE_MIN</p></td>
 694 <td> </td>
 695 <td> </td>
 696 </tr>
 697 <tr>
 698 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-LOWER-LIMIT-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_LOWER_LIMIT_GAP_MIN</p></td>
 699 <td> </td>
 700 <td> </td>
 701 </tr>
 702 <tr>
 703 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-LOWER-LIMIT-BASELINE-DROP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_LOWER_LIMIT_BASELINE_DROP_MIN</p></td>
 704 <td> </td>
 705 <td> </td>
 706 </tr>
 707 <tr>
 708 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STACK-TOP-SHIFT-UP:CAPS"></a>HB_OT_MATH_CONSTANT_STACK_TOP_SHIFT_UP</p></td>
 709 <td> </td>
 710 <td> </td>
 711 </tr>
 712 <tr>
 713 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STACK-TOP-DISPLAY-STYLE-SHIFT-UP:CAPS"></a>HB_OT_MATH_CONSTANT_STACK_TOP_DISPLAY_STYLE_SHIFT_UP</p></td>
 714 <td> </td>
 715 <td> </td>
 716 </tr>
 717 <tr>
 718 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STACK-BOTTOM-SHIFT-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_STACK_BOTTOM_SHIFT_DOWN</p></td>
 719 <td> </td>
 720 <td> </td>
 721 </tr>
 722 <tr>
 723 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STACK-BOTTOM-DISPLAY-STYLE-SHIFT-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_STACK_BOTTOM_DISPLAY_STYLE_SHIFT_DOWN</p></td>
 724 <td> </td>
 725 <td> </td>
 726 </tr>
 727 <tr>
 728 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STACK-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_STACK_GAP_MIN</p></td>
 729 <td> </td>
 730 <td> </td>
 731 </tr>
 732 <tr>
 733 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STACK-DISPLAY-STYLE-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_STACK_DISPLAY_STYLE_GAP_MIN</p></td>
 734 <td> </td>
 735 <td> </td>
 736 </tr>
 737 <tr>
 738 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STRETCH-STACK-TOP-SHIFT-UP:CAPS"></a>HB_OT_MATH_CONSTANT_STRETCH_STACK_TOP_SHIFT_UP</p></td>
 739 <td> </td>
 740 <td> </td>
 741 </tr>
 742 <tr>
 743 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STRETCH-STACK-BOTTOM-SHIFT-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_STRETCH_STACK_BOTTOM_SHIFT_DOWN</p></td>
 744 <td> </td>
 745 <td> </td>
 746 </tr>
 747 <tr>
 748 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STRETCH-STACK-GAP-ABOVE-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_STRETCH_STACK_GAP_ABOVE_MIN</p></td>
 749 <td> </td>
 750 <td> </td>
 751 </tr>
 752 <tr>
 753 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-STRETCH-STACK-GAP-BELOW-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_STRETCH_STACK_GAP_BELOW_MIN</p></td>
 754 <td> </td>
 755 <td> </td>
 756 </tr>
 757 <tr>
 758 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-NUMERATOR-SHIFT-UP:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_SHIFT_UP</p></td>
 759 <td> </td>
 760 <td> </td>
 761 </tr>
 762 <tr>
 763 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-NUMERATOR-DISPLAY-STYLE-SHIFT-UP:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_DISPLAY_STYLE_SHIFT_UP</p></td>
 764 <td> </td>
 765 <td> </td>
 766 </tr>
 767 <tr>
 768 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-DENOMINATOR-SHIFT-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_SHIFT_DOWN</p></td>
 769 <td> </td>
 770 <td> </td>
 771 </tr>
 772 <tr>
 773 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-DENOMINATOR-DISPLAY-STYLE-SHIFT-DOWN:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_DISPLAY_STYLE_SHIFT_DOWN</p></td>
 774 <td> </td>
 775 <td> </td>
 776 </tr>
 777 <tr>
 778 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-NUMERATOR-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_NUMERATOR_GAP_MIN</p></td>
 779 <td> </td>
 780 <td> </td>
 781 </tr>
 782 <tr>
 783 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-NUM-DISPLAY-STYLE-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_NUM_DISPLAY_STYLE_GAP_MIN</p></td>
 784 <td> </td>
 785 <td> </td>
 786 </tr>
 787 <tr>
 788 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-RULE-THICKNESS:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_RULE_THICKNESS</p></td>
 789 <td> </td>
 790 <td> </td>
 791 </tr>
 792 <tr>
 793 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-DENOMINATOR-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_DENOMINATOR_GAP_MIN</p></td>
 794 <td> </td>
 795 <td> </td>
 796 </tr>
 797 <tr>
 798 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-FRACTION-DENOM-DISPLAY-STYLE-GAP-MIN:CAPS"></a>HB_OT_MATH_CONSTANT_FRACTION_DENOM_DISPLAY_STYLE_GAP_MIN</p></td>
 799 <td> </td>
 800 <td> </td>
 801 </tr>
 802 <tr>
 803 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SKEWED-FRACTION-HORIZONTAL-GAP:CAPS"></a>HB_OT_MATH_CONSTANT_SKEWED_FRACTION_HORIZONTAL_GAP</p></td>
 804 <td> </td>
 805 <td> </td>
 806 </tr>
 807 <tr>
 808 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-SKEWED-FRACTION-VERTICAL-GAP:CAPS"></a>HB_OT_MATH_CONSTANT_SKEWED_FRACTION_VERTICAL_GAP</p></td>
 809 <td> </td>
 810 <td> </td>
 811 </tr>
 812 <tr>
 813 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-OVERBAR-VERTICAL-GAP:CAPS"></a>HB_OT_MATH_CONSTANT_OVERBAR_VERTICAL_GAP</p></td>
 814 <td> </td>
 815 <td> </td>
 816 </tr>
 817 <tr>
 818 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-OVERBAR-RULE-THICKNESS:CAPS"></a>HB_OT_MATH_CONSTANT_OVERBAR_RULE_THICKNESS</p></td>
 819 <td> </td>
 820 <td> </td>
 821 </tr>
 822 <tr>
 823 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-OVERBAR-EXTRA-ASCENDER:CAPS"></a>HB_OT_MATH_CONSTANT_OVERBAR_EXTRA_ASCENDER</p></td>
 824 <td> </td>
 825 <td> </td>
 826 </tr>
 827 <tr>
 828 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-UNDERBAR-VERTICAL-GAP:CAPS"></a>HB_OT_MATH_CONSTANT_UNDERBAR_VERTICAL_GAP</p></td>
 829 <td> </td>
 830 <td> </td>
 831 </tr>
 832 <tr>
 833 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-UNDERBAR-RULE-THICKNESS:CAPS"></a>HB_OT_MATH_CONSTANT_UNDERBAR_RULE_THICKNESS</p></td>
 834 <td> </td>
 835 <td> </td>
 836 </tr>
 837 <tr>
 838 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-UNDERBAR-EXTRA-DESCENDER:CAPS"></a>HB_OT_MATH_CONSTANT_UNDERBAR_EXTRA_DESCENDER</p></td>
 839 <td> </td>
 840 <td> </td>
 841 </tr>
 842 <tr>
 843 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-VERTICAL-GAP:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_VERTICAL_GAP</p></td>
 844 <td> </td>
 845 <td> </td>
 846 </tr>
 847 <tr>
 848 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-DISPLAY-STYLE-VERTICAL-GAP:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_DISPLAY_STYLE_VERTICAL_GAP</p></td>
 849 <td> </td>
 850 <td> </td>
 851 </tr>
 852 <tr>
 853 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-RULE-THICKNESS:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_RULE_THICKNESS</p></td>
 854 <td> </td>
 855 <td> </td>
 856 </tr>
 857 <tr>
 858 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-EXTRA-ASCENDER:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_EXTRA_ASCENDER</p></td>
 859 <td> </td>
 860 <td> </td>
 861 </tr>
 862 <tr>
 863 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-KERN-BEFORE-DEGREE:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_KERN_BEFORE_DEGREE</p></td>
 864 <td> </td>
 865 <td> </td>
 866 </tr>
 867 <tr>
 868 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-KERN-AFTER-DEGREE:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_KERN_AFTER_DEGREE</p></td>
 869 <td> </td>
 870 <td> </td>
 871 </tr>
 872 <tr>
 873 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-RADICAL-DEGREE-BOTTOM-RAISE-PERCENT:CAPS"></a>HB_OT_MATH_CONSTANT_RADICAL_DEGREE_BOTTOM_RAISE_PERCENT</p></td>
 874 <td> </td>
 875 <td> </td>
 876 </tr>
 877 </tbody>
 878 </table></div>
 879 </div>
 880 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 881 </div>
 882 <hr>
 883 <div class="refsect2">
 884 <a name="hb-ot-math-kern-t"></a><h3>enum hb_ot_math_kern_t</h3>
 885 <div class="refsect3">
 886 <a name="hb-ot-math-kern-t.members"></a><h4>Members</h4>
 887 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 888 <colgroup>
 889 <col width="300px" class="enum_members_name">
 890 <col class="enum_members_description">
 891 <col width="200px" class="enum_members_annotations">
 892 </colgroup>
 893 <tbody>
 894 <tr>
 895 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-TOP-RIGHT:CAPS"></a>HB_OT_MATH_KERN_TOP_RIGHT</p></td>
 896 <td> </td>
 897 <td> </td>
 898 </tr>
 899 <tr>
 900 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-TOP-LEFT:CAPS"></a>HB_OT_MATH_KERN_TOP_LEFT</p></td>
 901 <td> </td>
 902 <td> </td>
 903 </tr>
 904 <tr>
 905 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-BOTTOM-RIGHT:CAPS"></a>HB_OT_MATH_KERN_BOTTOM_RIGHT</p></td>
 906 <td> </td>
 907 <td> </td>
 908 </tr>
 909 <tr>
 910 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-BOTTOM-LEFT:CAPS"></a>HB_OT_MATH_KERN_BOTTOM_LEFT</p></td>
 911 <td> </td>
 912 <td> </td>
 913 </tr>
 914 </tbody>
 915 </table></div>
 916 </div>
 917 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 918 </div>
 919 <hr>
 920 <div class="refsect2">
 921 <a name="hb-ot-math-glyph-variant-t-struct"></a><h3>hb_ot_math_glyph_variant_t</h3>
 922 <pre class="programlisting">typedef struct {
 923   hb_codepoint_t glyph;
 924   hb_position_t advance;
 925 } hb_ot_math_glyph_variant_t;
 926 </pre>
 927 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 928 </div>
 929 <hr>
 930 <div class="refsect2">
 931 <a name="hb-ot-math-glyph-part-flags-t"></a><h3>enum hb_ot_math_glyph_part_flags_t</h3>
 932 <div class="refsect3">
 933 <a name="hb-ot-math-glyph-part-flags-t.members"></a><h4>Members</h4>
 934 <div class="informaltable"><table class="informaltable" width="100%" border="0">
 935 <colgroup>
 936 <col width="300px" class="enum_members_name">
 937 <col class="enum_members_description">
 938 <col width="200px" class="enum_members_annotations">
 939 </colgroup>
 940 <tbody><tr>
 941 <td class="enum_member_name"><p><a name="HB-MATH-GLYPH-PART-FLAG-EXTENDER:CAPS"></a>HB_MATH_GLYPH_PART_FLAG_EXTENDER</p></td>
 942 <td> </td>
 943 <td> </td>
 944 </tr></tbody>
 945 </table></div>
 946 </div>
 947 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 948 </div>
 949 <hr>
 950 <div class="refsect2">
 951 <a name="hb-ot-math-glyph-part-t-struct"></a><h3>hb_ot_math_glyph_part_t</h3>
 952 <pre class="programlisting">typedef struct {
 953   hb_codepoint_t glyph;
 954   hb_position_t start_connector_length;
 955   hb_position_t end_connector_length;
 956   hb_position_t full_advance;
 957   hb_ot_math_glyph_part_flags_t flags;
 958 } hb_ot_math_glyph_part_t;
 959 </pre>
 960 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 961 </div>
 962 </div>
 963 </div>
 964 <div class="footer">
 965 <hr>Generated by GTK-Doc V1.25</div>
 966 </body>
 967 </html>