docs/html/harfbuzz-hb-ot-math.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
   2 <html>
   3 <head>
   4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
   5 <title>hb-ot-math: HarfBuzz Manual</title>
   6 <meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
   7 <link rel="home" href="index.html" title="HarfBuzz Manual">
   8 <link rel="up" href="ch08.html" title="Harfbuzz API">
   9 <link rel="prev" href="harfbuzz-hb-ot-shape.html" title="hb-ot-shape">
  10 <link rel="next" href="harfbuzz-hb-shape-plan.html" title="hb-shape-plan">
  11 <meta name="generator" content="GTK-Doc V1.25.1 (XML mode)">
  12 <link rel="stylesheet" href="style.css" type="text/css">
  13 </head>
  14 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
  15 <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
  16 <td width="100%" align="left" class="shortcuts">
  17 <a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span>
  18                   <a href="#harfbuzz-hb-ot-math.description" class="shortcut">Description</a></span><span id="nav_hierarchy">  <span class="dim">|</span>
  19                   <a href="#harfbuzz-hb-ot-math.object-hierarchy" class="shortcut">Object Hierarchy</a></span>
  20 </td>
  21 <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
  22 <td><a accesskey="u" href="ch08.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
  23 <td><a accesskey="p" href="harfbuzz-hb-ot-shape.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
  24 <td><a accesskey="n" href="harfbuzz-hb-shape-plan.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
  25 </tr></table>
  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</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 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 <div class="refsect1">
 117 <a name="harfbuzz-hb-ot-math.other"></a><h2>Types and Values</h2>
 118 <div class="informaltable"><table 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" 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" 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="/home/behdad/.local/share/gtk-doc/html/gobject/gobject-Enumeration-and-Flag-Types.html">GEnum</a>
 158     <span class="lineart">├──</span> hb_ot_math_constant_t
 159     <span class="lineart">╰──</span> hb_ot_math_kern_t
 160     <a href="/home/behdad/.local/share/gtk-doc/html/gobject/gobject-Enumeration-and-Flag-Types.html">GFlags</a>
 161     <span class="lineart">╰──</span> hb_ot_math_glyph_part_flags_t
 162 </pre>
 163 </div>
 164 <div class="refsect1">
 165 <a name="harfbuzz-hb-ot-math.description"></a><h2>Description</h2>
 166 </div>
 167 <div class="refsect1">
 168 <a name="harfbuzz-hb-ot-math.functions_details"></a><h2>Functions</h2>
 169 <div class="refsect2">
 170 <a name="hb-ot-math-has-data"></a><h3>hb_ot_math_has_data ()</h3>
 171 <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>
 172 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>
 173 <p>This function allows to verify the presence of an OpenType MATH table on the
 174 face.</p>
 175 <div class="refsect3">
 176 <a name="hb-ot-math-has-data.parameters"></a><h4>Parameters</h4>
 177 <div class="informaltable"><table width="100%" border="0">
 178 <colgroup>
 179 <col width="150px" class="parameters_name">
 180 <col class="parameters_description">
 181 <col width="200px" class="parameters_annotations">
 182 </colgroup>
 183 <tbody><tr>
 184 <td class="parameter_name"><p>face</p></td>
 185 <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>
 186 <td class="parameter_annotations"> </td>
 187 </tr></tbody>
 188 </table></div>
 189 </div>
 190 <div class="refsect3">
 191 <a name="hb-ot-math-has-data.returns"></a><h4>Returns</h4>
 192 <p> true if face has a MATH table, false otherwise</p>
 193 </div>
 194 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 195 </div>
 196 <hr>
 197 <div class="refsect2">
 198 <a name="hb-ot-math-get-constant"></a><h3>hb_ot_math_get_constant ()</h3>
 199 <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>
 200 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>,
 201                          <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>
 202 <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>.
 203 If the request constant is HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN,
 204 HB_OT_MATH_CONSTANT_SCRIPT_SCRIPT_PERCENT_SCALE_DOWN or
 205 HB_OT_MATH_CONSTANT_SCRIPT_PERCENT_SCALE_DOWN then the return value is
 206 actually an integer between 0 and 100 representing that percentage.</p>
 207 <div class="refsect3">
 208 <a name="hb-ot-math-get-constant.parameters"></a><h4>Parameters</h4>
 209 <div class="informaltable"><table width="100%" border="0">
 210 <colgroup>
 211 <col width="150px" class="parameters_name">
 212 <col class="parameters_description">
 213 <col width="200px" class="parameters_annotations">
 214 </colgroup>
 215 <tbody>
 216 <tr>
 217 <td class="parameter_name"><p>font</p></td>
 218 <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>
 219 <td class="parameter_annotations"> </td>
 220 </tr>
 221 <tr>
 222 <td class="parameter_name"><p>constant</p></td>
 223 <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>
 224 <td class="parameter_annotations"> </td>
 225 </tr>
 226 </tbody>
 227 </table></div>
 228 </div>
 229 <div class="refsect3">
 230 <a name="hb-ot-math-get-constant.returns"></a><h4>Returns</h4>
 231 <p> the requested constant or 0</p>
 232 </div>
 233 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 234 </div>
 235 <hr>
 236 <div class="refsect2">
 237 <a name="hb-ot-math-get-glyph-italics-correction"></a><h3>hb_ot_math_get_glyph_italics_correction ()</h3>
 238 <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>
 239 hb_ot_math_get_glyph_italics_correction
 240                                (<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>,
 241                                 <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>
 242 <div class="refsect3">
 243 <a name="hb-ot-math-get-glyph-italics-correction.parameters"></a><h4>Parameters</h4>
 244 <div class="informaltable"><table width="100%" border="0">
 245 <colgroup>
 246 <col width="150px" class="parameters_name">
 247 <col class="parameters_description">
 248 <col width="200px" class="parameters_annotations">
 249 </colgroup>
 250 <tbody>
 251 <tr>
 252 <td class="parameter_name"><p>font</p></td>
 253 <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>
 254 <td class="parameter_annotations"> </td>
 255 </tr>
 256 <tr>
 257 <td class="parameter_name"><p>glyph</p></td>
 258 <td class="parameter_description"><p>glyph index from which to retrieve the value</p></td>
 259 <td class="parameter_annotations"> </td>
 260 </tr>
 261 </tbody>
 262 </table></div>
 263 </div>
 264 <div class="refsect3">
 265 <a name="hb-ot-math-get-glyph-italics-correction.returns"></a><h4>Returns</h4>
 266 <p> the italics correction of the glyph or 0</p>
 267 </div>
 268 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 269 </div>
 270 <hr>
 271 <div class="refsect2">
 272 <a name="hb-ot-math-get-glyph-top-accent-attachment"></a><h3>hb_ot_math_get_glyph_top_accent_attachment ()</h3>
 273 <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>
 274 hb_ot_math_get_glyph_top_accent_attachment
 275                                (<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>,
 276                                 <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>
 277 <div class="refsect3">
 278 <a name="hb-ot-math-get-glyph-top-accent-attachment.parameters"></a><h4>Parameters</h4>
 279 <div class="informaltable"><table width="100%" border="0">
 280 <colgroup>
 281 <col width="150px" class="parameters_name">
 282 <col class="parameters_description">
 283 <col width="200px" class="parameters_annotations">
 284 </colgroup>
 285 <tbody>
 286 <tr>
 287 <td class="parameter_name"><p>font</p></td>
 288 <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>
 289 <td class="parameter_annotations"> </td>
 290 </tr>
 291 <tr>
 292 <td class="parameter_name"><p>glyph</p></td>
 293 <td class="parameter_description"><p>glyph index from which to retrieve the value</p></td>
 294 <td class="parameter_annotations"> </td>
 295 </tr>
 296 </tbody>
 297 </table></div>
 298 </div>
 299 <div class="refsect3">
 300 <a name="hb-ot-math-get-glyph-top-accent-attachment.returns"></a><h4>Returns</h4>
 301 <p> the top accent attachment of the glyph or 0</p>
 302 </div>
 303 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 304 </div>
 305 <hr>
 306 <div class="refsect2">
 307 <a name="hb-ot-math-get-glyph-kerning"></a><h3>hb_ot_math_get_glyph_kerning ()</h3>
 308 <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>
 309 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>,
 310                               <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>,
 311                               <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>,
 312                               <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>
 313 <p>This function tries to retrieve the MathKern table for the specified font,
 314 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
 315 MathKern table to find one value that is greater or equal to specified
 316 correction_height. If one is found the corresponding value from the list of
 317 kerns is returned and otherwise the last kern value is returned.</p>
 318 <div class="refsect3">
 319 <a name="hb-ot-math-get-glyph-kerning.parameters"></a><h4>Parameters</h4>
 320 <div class="informaltable"><table width="100%" border="0">
 321 <colgroup>
 322 <col width="150px" class="parameters_name">
 323 <col class="parameters_description">
 324 <col width="200px" class="parameters_annotations">
 325 </colgroup>
 326 <tbody>
 327 <tr>
 328 <td class="parameter_name"><p>font</p></td>
 329 <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>
 330 <td class="parameter_annotations"> </td>
 331 </tr>
 332 <tr>
 333 <td class="parameter_name"><p>glyph</p></td>
 334 <td class="parameter_description"><p>glyph index from which to retrieve the value</p></td>
 335 <td class="parameter_annotations"> </td>
 336 </tr>
 337 <tr>
 338 <td class="parameter_name"><p>kern</p></td>
 339 <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>
 340 <td class="parameter_annotations"> </td>
 341 </tr>
 342 <tr>
 343 <td class="parameter_name"><p>correction_height</p></td>
 344 <td class="parameter_description"><p>the correction height to use to determine the kerning.</p></td>
 345 <td class="parameter_annotations"> </td>
 346 </tr>
 347 </tbody>
 348 </table></div>
 349 </div>
 350 <div class="refsect3">
 351 <a name="hb-ot-math-get-glyph-kerning.returns"></a><h4>Returns</h4>
 352 <p> requested kerning or 0</p>
 353 </div>
 354 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 355 </div>
 356 <hr>
 357 <div class="refsect2">
 358 <a name="hb-ot-math-is-glyph-extended-shape"></a><h3>hb_ot_math_is_glyph_extended_shape ()</h3>
 359 <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>
 360 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>,
 361                                     <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>
 362 <div class="refsect3">
 363 <a name="hb-ot-math-is-glyph-extended-shape.parameters"></a><h4>Parameters</h4>
 364 <div class="informaltable"><table width="100%" border="0">
 365 <colgroup>
 366 <col width="150px" class="parameters_name">
 367 <col class="parameters_description">
 368 <col width="200px" class="parameters_annotations">
 369 </colgroup>
 370 <tbody>
 371 <tr>
 372 <td class="parameter_name"><p>face</p></td>
 373 <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>
 374 <td class="parameter_annotations"> </td>
 375 </tr>
 376 <tr>
 377 <td class="parameter_name"><p>glyph</p></td>
 378 <td class="parameter_description"><p>a glyph index to test</p></td>
 379 <td class="parameter_annotations"> </td>
 380 </tr>
 381 </tbody>
 382 </table></div>
 383 </div>
 384 <div class="refsect3">
 385 <a name="hb-ot-math-is-glyph-extended-shape.returns"></a><h4>Returns</h4>
 386 <p> true if the glyph is an extended shape, false otherwise</p>
 387 </div>
 388 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 389 </div>
 390 <hr>
 391 <div class="refsect2">
 392 <a name="hb-ot-math-get-glyph-variants"></a><h3>hb_ot_math_get_glyph_variants ()</h3>
 393 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 394 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>,
 395                                <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>,
 396                                <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>,
 397                                <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 398                                <em class="parameter"><code>unsigned <span class="type">int</span> *variants_count</code></em>,
 399                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-variant-t" title="hb_ot_math_glyph_variant_t"><span class="type">hb_ot_math_glyph_variant_t</span></a> *variants</code></em>);</pre>
 400 <p>This function tries to retrieve the MathGlyphConstruction for the specified
 401 font, glyph and direction. Note that only the value of
 402 <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
 403 of size variants as an array of hb_ot_math_glyph_variant_t structs.</p>
 404 <div class="refsect3">
 405 <a name="hb-ot-math-get-glyph-variants.parameters"></a><h4>Parameters</h4>
 406 <div class="informaltable"><table width="100%" border="0">
 407 <colgroup>
 408 <col width="150px" class="parameters_name">
 409 <col class="parameters_description">
 410 <col width="200px" class="parameters_annotations">
 411 </colgroup>
 412 <tbody>
 413 <tr>
 414 <td class="parameter_name"><p>font</p></td>
 415 <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>
 416 <td class="parameter_annotations"> </td>
 417 </tr>
 418 <tr>
 419 <td class="parameter_name"><p>glyph</p></td>
 420 <td class="parameter_description"><p>index of the glyph to stretch</p></td>
 421 <td class="parameter_annotations"> </td>
 422 </tr>
 423 <tr>
 424 <td class="parameter_name"><p>direction</p></td>
 425 <td class="parameter_description"><p>direction of the stretching</p></td>
 426 <td class="parameter_annotations"> </td>
 427 </tr>
 428 <tr>
 429 <td class="parameter_name"><p>start_offset</p></td>
 430 <td class="parameter_description"><p>offset of the first variant to retrieve</p></td>
 431 <td class="parameter_annotations"> </td>
 432 </tr>
 433 <tr>
 434 <td class="parameter_name"><p>variants_count</p></td>
 435 <td class="parameter_description"><p>maximum number of variants to retrieve after start_offset
 436 (IN) and actual number of variants retrieved (OUT)</p></td>
 437 <td class="parameter_annotations"> </td>
 438 </tr>
 439 <tr>
 440 <td class="parameter_name"><p>variants</p></td>
 441 <td class="parameter_description"><p>array of size at least <em class="parameter"><code>variants_count</code></em>
 442 to store the result</p></td>
 443 <td class="parameter_annotations"> </td>
 444 </tr>
 445 </tbody>
 446 </table></div>
 447 </div>
 448 <div class="refsect3">
 449 <a name="hb-ot-math-get-glyph-variants.returns"></a><h4>Returns</h4>
 450 <p> the total number of size variants available or 0</p>
 451 </div>
 452 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 453 </div>
 454 <hr>
 455 <div class="refsect2">
 456 <a name="hb-ot-math-get-min-connector-overlap"></a><h3>hb_ot_math_get_min_connector_overlap ()</h3>
 457 <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>
 458 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>,
 459                                       <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>
 460 <p>This function tries to retrieve the MathVariants table for the specified
 461 font and returns the minimum overlap of connecting glyphs to draw a glyph
 462 assembly in the specified direction. Note that only the value of
 463 <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>
 464 <div class="refsect3">
 465 <a name="hb-ot-math-get-min-connector-overlap.parameters"></a><h4>Parameters</h4>
 466 <div class="informaltable"><table width="100%" border="0">
 467 <colgroup>
 468 <col width="150px" class="parameters_name">
 469 <col class="parameters_description">
 470 <col width="200px" class="parameters_annotations">
 471 </colgroup>
 472 <tbody>
 473 <tr>
 474 <td class="parameter_name"><p>font</p></td>
 475 <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>
 476 <td class="parameter_annotations"> </td>
 477 </tr>
 478 <tr>
 479 <td class="parameter_name"><p>direction</p></td>
 480 <td class="parameter_description"><p>direction of the stretching</p></td>
 481 <td class="parameter_annotations"> </td>
 482 </tr>
 483 </tbody>
 484 </table></div>
 485 </div>
 486 <div class="refsect3">
 487 <a name="hb-ot-math-get-min-connector-overlap.returns"></a><h4>Returns</h4>
 488 <p> requested min connector overlap or 0</p>
 489 </div>
 490 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 491 </div>
 492 <hr>
 493 <div class="refsect2">
 494 <a name="hb-ot-math-get-glyph-assembly"></a><h3>hb_ot_math_get_glyph_assembly ()</h3>
 495 <pre class="programlisting">unsigned <span class="returnvalue">int</span>
 496 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>,
 497                                <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>,
 498                                <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>,
 499                                <em class="parameter"><code>unsigned <span class="type">int</span> start_offset</code></em>,
 500                                <em class="parameter"><code>unsigned <span class="type">int</span> *parts_count</code></em>,
 501                                <em class="parameter"><code><a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-part-t" title="hb_ot_math_glyph_part_t"><span class="type">hb_ot_math_glyph_part_t</span></a> *parts</code></em>,
 502                                <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>
 503 <p>This function tries to retrieve the GlyphAssembly for the specified font,
 504 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>
 505 is considered. It provides the information necessary to draw the glyph
 506 assembly as an array of <a class="link" href="harfbuzz-hb-ot-math.html#hb-ot-math-glyph-part-t" title="hb_ot_math_glyph_part_t"><span class="type">hb_ot_math_glyph_part_t</span></a>.</p>
 507 <div class="refsect3">
 508 <a name="hb-ot-math-get-glyph-assembly.parameters"></a><h4>Parameters</h4>
 509 <div class="informaltable"><table width="100%" border="0">
 510 <colgroup>
 511 <col width="150px" class="parameters_name">
 512 <col class="parameters_description">
 513 <col width="200px" class="parameters_annotations">
 514 </colgroup>
 515 <tbody>
 516 <tr>
 517 <td class="parameter_name"><p>font</p></td>
 518 <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>
 519 <td class="parameter_annotations"> </td>
 520 </tr>
 521 <tr>
 522 <td class="parameter_name"><p>glyph</p></td>
 523 <td class="parameter_description"><p>index of the glyph to stretch</p></td>
 524 <td class="parameter_annotations"> </td>
 525 </tr>
 526 <tr>
 527 <td class="parameter_name"><p>direction</p></td>
 528 <td class="parameter_description"><p>direction of the stretching</p></td>
 529 <td class="parameter_annotations"> </td>
 530 </tr>
 531 <tr>
 532 <td class="parameter_name"><p>start_offset</p></td>
 533 <td class="parameter_description"><p>offset of the first glyph part to retrieve</p></td>
 534 <td class="parameter_annotations"> </td>
 535 </tr>
 536 <tr>
 537 <td class="parameter_name"><p>parts_count</p></td>
 538 <td class="parameter_description"><p>maximum number of glyph parts to retrieve after start_offset
 539 (IN) and actual number of parts retrieved (OUT)</p></td>
 540 <td class="parameter_annotations"> </td>
 541 </tr>
 542 <tr>
 543 <td class="parameter_name"><p>parts</p></td>
 544 <td class="parameter_description"><p>array of size at least <em class="parameter"><code>parts_count</code></em>
 545 to store the result</p></td>
 546 <td class="parameter_annotations"> </td>
 547 </tr>
 548 <tr>
 549 <td class="parameter_name"><p>italics_correction</p></td>
 550 <td class="parameter_description"><p>italic correction of the glyph assembly</p></td>
 551 <td class="parameter_annotations"> </td>
 552 </tr>
 553 </tbody>
 554 </table></div>
 555 </div>
 556 <div class="refsect3">
 557 <a name="hb-ot-math-get-glyph-assembly.returns"></a><h4>Returns</h4>
 558 <p> the total number of parts in the glyph assembly</p>
 559 </div>
 560 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 561 </div>
 562 </div>
 563 <div class="refsect1">
 564 <a name="harfbuzz-hb-ot-math.other_details"></a><h2>Types and Values</h2>
 565 <div class="refsect2">
 566 <a name="HB-OT-TAG-MATH:CAPS"></a><h3>HB_OT_TAG_MATH</h3>
 567 <pre class="programlisting">#define             HB_OT_TAG_MATH</pre>
 568 </div>
 569 <hr>
 570 <div class="refsect2">
 571 <a name="HB-OT-MATH-SCRIPT:CAPS"></a><h3>HB_OT_MATH_SCRIPT</h3>
 572 <pre class="programlisting">#define             HB_OT_MATH_SCRIPT</pre>
 573 </div>
 574 <hr>
 575 <div class="refsect2">
 576 <a name="hb-ot-math-constant-t"></a><h3>enum hb_ot_math_constant_t</h3>
 577 <div class="refsect3">
 578 <a name="hb-ot-math-constant-t.members"></a><h4>Members</h4>
 579 <div class="informaltable"><table width="100%" border="0">
 580 <colgroup>
 581 <col width="300px" class="enum_members_name">
 582 <col class="enum_members_description">
 583 <col width="200px" class="enum_members_annotations">
 584 </colgroup>
 585 <tbody>
 586 <tr>
 587 <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>
 588 <td> </td>
 589 <td> </td>
 590 </tr>
 591 <tr>
 592 <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>
 593 <td> </td>
 594 <td> </td>
 595 </tr>
 596 <tr>
 597 <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>
 598 <td> </td>
 599 <td> </td>
 600 </tr>
 601 <tr>
 602 <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>
 603 <td> </td>
 604 <td> </td>
 605 </tr>
 606 <tr>
 607 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-MATH-LEADING:CAPS"></a>HB_OT_MATH_CONSTANT_MATH_LEADING</p></td>
 608 <td> </td>
 609 <td> </td>
 610 </tr>
 611 <tr>
 612 <td class="enum_member_name"><p><a name="HB-OT-MATH-CONSTANT-AXIS-HEIGHT:CAPS"></a>HB_OT_MATH_CONSTANT_AXIS_HEIGHT</p></td>
 613 <td> </td>
 614 <td> </td>
 615 </tr>
 616 <tr>
 617 <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>
 618 <td> </td>
 619 <td> </td>
 620 </tr>
 621 <tr>
 622 <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>
 623 <td> </td>
 624 <td> </td>
 625 </tr>
 626 <tr>
 627 <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>
 628 <td> </td>
 629 <td> </td>
 630 </tr>
 631 <tr>
 632 <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>
 633 <td> </td>
 634 <td> </td>
 635 </tr>
 636 <tr>
 637 <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>
 638 <td> </td>
 639 <td> </td>
 640 </tr>
 641 <tr>
 642 <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>
 643 <td> </td>
 644 <td> </td>
 645 </tr>
 646 <tr>
 647 <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>
 648 <td> </td>
 649 <td> </td>
 650 </tr>
 651 <tr>
 652 <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>
 653 <td> </td>
 654 <td> </td>
 655 </tr>
 656 <tr>
 657 <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>
 658 <td> </td>
 659 <td> </td>
 660 </tr>
 661 <tr>
 662 <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>
 663 <td> </td>
 664 <td> </td>
 665 </tr>
 666 <tr>
 667 <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>
 668 <td> </td>
 669 <td> </td>
 670 </tr>
 671 <tr>
 672 <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>
 673 <td> </td>
 674 <td> </td>
 675 </tr>
 676 <tr>
 677 <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>
 678 <td> </td>
 679 <td> </td>
 680 </tr>
 681 <tr>
 682 <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>
 683 <td> </td>
 684 <td> </td>
 685 </tr>
 686 <tr>
 687 <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>
 688 <td> </td>
 689 <td> </td>
 690 </tr>
 691 <tr>
 692 <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>
 693 <td> </td>
 694 <td> </td>
 695 </tr>
 696 <tr>
 697 <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>
 698 <td> </td>
 699 <td> </td>
 700 </tr>
 701 <tr>
 702 <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>
 703 <td> </td>
 704 <td> </td>
 705 </tr>
 706 <tr>
 707 <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>
 708 <td> </td>
 709 <td> </td>
 710 </tr>
 711 <tr>
 712 <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>
 713 <td> </td>
 714 <td> </td>
 715 </tr>
 716 <tr>
 717 <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>
 718 <td> </td>
 719 <td> </td>
 720 </tr>
 721 <tr>
 722 <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>
 723 <td> </td>
 724 <td> </td>
 725 </tr>
 726 <tr>
 727 <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>
 728 <td> </td>
 729 <td> </td>
 730 </tr>
 731 <tr>
 732 <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>
 733 <td> </td>
 734 <td> </td>
 735 </tr>
 736 <tr>
 737 <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>
 738 <td> </td>
 739 <td> </td>
 740 </tr>
 741 <tr>
 742 <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>
 743 <td> </td>
 744 <td> </td>
 745 </tr>
 746 <tr>
 747 <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>
 748 <td> </td>
 749 <td> </td>
 750 </tr>
 751 <tr>
 752 <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>
 753 <td> </td>
 754 <td> </td>
 755 </tr>
 756 <tr>
 757 <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>
 758 <td> </td>
 759 <td> </td>
 760 </tr>
 761 <tr>
 762 <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>
 763 <td> </td>
 764 <td> </td>
 765 </tr>
 766 <tr>
 767 <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>
 768 <td> </td>
 769 <td> </td>
 770 </tr>
 771 <tr>
 772 <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>
 773 <td> </td>
 774 <td> </td>
 775 </tr>
 776 <tr>
 777 <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>
 778 <td> </td>
 779 <td> </td>
 780 </tr>
 781 <tr>
 782 <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>
 783 <td> </td>
 784 <td> </td>
 785 </tr>
 786 <tr>
 787 <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>
 788 <td> </td>
 789 <td> </td>
 790 </tr>
 791 <tr>
 792 <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>
 793 <td> </td>
 794 <td> </td>
 795 </tr>
 796 <tr>
 797 <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>
 798 <td> </td>
 799 <td> </td>
 800 </tr>
 801 <tr>
 802 <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>
 803 <td> </td>
 804 <td> </td>
 805 </tr>
 806 <tr>
 807 <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>
 808 <td> </td>
 809 <td> </td>
 810 </tr>
 811 <tr>
 812 <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>
 813 <td> </td>
 814 <td> </td>
 815 </tr>
 816 <tr>
 817 <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>
 818 <td> </td>
 819 <td> </td>
 820 </tr>
 821 <tr>
 822 <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>
 823 <td> </td>
 824 <td> </td>
 825 </tr>
 826 <tr>
 827 <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>
 828 <td> </td>
 829 <td> </td>
 830 </tr>
 831 <tr>
 832 <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>
 833 <td> </td>
 834 <td> </td>
 835 </tr>
 836 <tr>
 837 <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>
 838 <td> </td>
 839 <td> </td>
 840 </tr>
 841 <tr>
 842 <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>
 843 <td> </td>
 844 <td> </td>
 845 </tr>
 846 <tr>
 847 <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>
 848 <td> </td>
 849 <td> </td>
 850 </tr>
 851 <tr>
 852 <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>
 853 <td> </td>
 854 <td> </td>
 855 </tr>
 856 <tr>
 857 <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>
 858 <td> </td>
 859 <td> </td>
 860 </tr>
 861 <tr>
 862 <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>
 863 <td> </td>
 864 <td> </td>
 865 </tr>
 866 </tbody>
 867 </table></div>
 868 </div>
 869 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 870 </div>
 871 <hr>
 872 <div class="refsect2">
 873 <a name="hb-ot-math-kern-t"></a><h3>enum hb_ot_math_kern_t</h3>
 874 <div class="refsect3">
 875 <a name="hb-ot-math-kern-t.members"></a><h4>Members</h4>
 876 <div class="informaltable"><table width="100%" border="0">
 877 <colgroup>
 878 <col width="300px" class="enum_members_name">
 879 <col class="enum_members_description">
 880 <col width="200px" class="enum_members_annotations">
 881 </colgroup>
 882 <tbody>
 883 <tr>
 884 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-TOP-RIGHT:CAPS"></a>HB_OT_MATH_KERN_TOP_RIGHT</p></td>
 885 <td> </td>
 886 <td> </td>
 887 </tr>
 888 <tr>
 889 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-TOP-LEFT:CAPS"></a>HB_OT_MATH_KERN_TOP_LEFT</p></td>
 890 <td> </td>
 891 <td> </td>
 892 </tr>
 893 <tr>
 894 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-BOTTOM-RIGHT:CAPS"></a>HB_OT_MATH_KERN_BOTTOM_RIGHT</p></td>
 895 <td> </td>
 896 <td> </td>
 897 </tr>
 898 <tr>
 899 <td class="enum_member_name"><p><a name="HB-OT-MATH-KERN-BOTTOM-LEFT:CAPS"></a>HB_OT_MATH_KERN_BOTTOM_LEFT</p></td>
 900 <td> </td>
 901 <td> </td>
 902 </tr>
 903 </tbody>
 904 </table></div>
 905 </div>
 906 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 907 </div>
 908 <hr>
 909 <div class="refsect2">
 910 <a name="hb-ot-math-glyph-variant-t"></a><h3>hb_ot_math_glyph_variant_t</h3>
 911 <pre class="programlisting">typedef struct {
 912   hb_codepoint_t glyph;
 913   hb_position_t advance;
 914 } hb_ot_math_glyph_variant_t;
 915 </pre>
 916 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 917 </div>
 918 <hr>
 919 <div class="refsect2">
 920 <a name="hb-ot-math-glyph-part-flags-t"></a><h3>enum hb_ot_math_glyph_part_flags_t</h3>
 921 <div class="refsect3">
 922 <a name="hb-ot-math-glyph-part-flags-t.members"></a><h4>Members</h4>
 923 <div class="informaltable"><table width="100%" border="0">
 924 <colgroup>
 925 <col width="300px" class="enum_members_name">
 926 <col class="enum_members_description">
 927 <col width="200px" class="enum_members_annotations">
 928 </colgroup>
 929 <tbody><tr>
 930 <td class="enum_member_name"><p><a name="HB-MATH-GLYPH-PART-FLAG-EXTENDER:CAPS"></a>HB_MATH_GLYPH_PART_FLAG_EXTENDER</p></td>
 931 <td> </td>
 932 <td> </td>
 933 </tr></tbody>
 934 </table></div>
 935 </div>
 936 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 937 </div>
 938 <hr>
 939 <div class="refsect2">
 940 <a name="hb-ot-math-glyph-part-t"></a><h3>hb_ot_math_glyph_part_t</h3>
 941 <pre class="programlisting">typedef struct {
 942   hb_codepoint_t glyph;
 943   hb_position_t start_connector_length;
 944   hb_position_t end_connector_length;
 945   hb_position_t full_advance;
 946   hb_ot_math_glyph_part_flags_t flags;
 947 } hb_ot_math_glyph_part_t;
 948 </pre>
 949 <p class="since">Since: <a class="link" href="api-index-1-3-3.html#api-index-1.3.3">1.3.3</a></p>
 950 </div>
 951 </div>
 952 </div>
 953 <div class="footer">
 954 <hr>Generated by GTK-Doc V1.25.1</div>
 955 </body>
 956 </html>