Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/thirdparty/harfbuzz/docs/usermanual-fonts-and-faces.xml @ 22:d77477b4e151

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Let _int_rc() also handle (i.e. ignore) a local version suffix
author Franz Glasner <fzglas.hg@dom66.de>
date Fri, 19 Sep 2025 12:05:57 +0200
parents b50eed0cc0ef
children
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1 <?xml version="1.0"?>
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2 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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3 "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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4 <!ENTITY % local.common.attrib "xmlns:xi CDATA #FIXED 'http://www.w3.org/2003/XInclude'">
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5 <!ENTITY version SYSTEM "version.xml">
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6 ]>
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7 <chapter id="fonts-and-faces">
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8 <title>Fonts, faces, and output</title>
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9 <para>
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10 In the previous chapter, we saw how to set up a buffer and fill
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11 it with text as Unicode code points. In order to shape this
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12 buffer text with HarfBuzz, you will need also need a font
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13 object.
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14 </para>
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15 <para>
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16 HarfBuzz provides abstractions to help you cache and reuse the
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17 heavier parts of working with binary fonts, so we will look at
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18 how to do that. We will also look at how to work with the
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19 FreeType font-rendering library and at how you can customize
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20 HarfBuzz to work with other libraries.
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21 </para>
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22 <para>
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23 Finally, we will look at how to work with OpenType variable
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24 fonts, the latest update to the OpenType font format, and at
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25 some other recent additions to OpenType.
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26 </para>
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27
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28 <section id="fonts-and-faces-objects">
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29 <title>Font and face objects</title>
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30 <para>
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31 The outcome of shaping a run of text depends on the contents of
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32 a specific font file (such as the substitutions and positioning
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33 moves in the 'GSUB' and 'GPOS' tables), so HarfBuzz makes
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34 accessing those internals fast.
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35 </para>
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36 <para>
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37 An <type>hb_face_t</type> represents a <emphasis>face</emphasis>
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38 in HarfBuzz. This data type is a wrapper around an
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39 <type>hb_blob_t</type> blob that holds the contents of a binary
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40 font file. Since HarfBuzz supports TrueType Collections and
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41 OpenType Collections (each of which can include multiple
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42 typefaces), a HarfBuzz face also requires an index number
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43 specifying which typeface in the file you want to use. Most of
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44 the font files you will encounter in the wild include just a
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45 single face, however, so most of the time you would pass in
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46 <literal>0</literal> as the index when you create a face:
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47 </para>
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48 <programlisting language="C">
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49 hb_blob_t* blob = hb_blob_create_from_file(file);
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50 ...
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51 hb_face_t* face = hb_face_create(blob, 0);
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52 </programlisting>
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53 <para>
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54 On its own, a face object is not quite ready to use for
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55 shaping. The typeface must be set to a specific point size in
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56 order for some details (such as hinting) to work. In addition,
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57 if the font file in question is an OpenType Variable Font, then
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58 you may need to specify one or variation-axis settings (or a
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59 named instance) in order to get the output you need.
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60 </para>
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61 <para>
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62 In HarfBuzz, you do this by creating a <emphasis>font</emphasis>
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63 object from your face.
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64 </para>
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65 <para>
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66 Font objects also have the advantage of being considerably
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67 lighter-weight than face objects (remember that a face contains
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68 the contents of a binary font file mapped into memory). As a
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69 result, you can cache and reuse a font object, but you could
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70 also create a new one for each additional size you needed.
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71 Creating new fonts incurs some additional overhead, of course,
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72 but whether or not it is excessive is your call in the end. In
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73 contrast, face objects are substantially larger, and you really
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74 should cache them and reuse them whenever possible.
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75 </para>
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76 <para>
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77 You can create a font object from a face object:
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78 </para>
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79 <programlisting language="C">
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80 hb_font_t* hb_font = hb_font_create(hb_face);
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81 </programlisting>
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82 <para>
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83 After creating a font, there are a few properties you should
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84 set. Many fonts enable and disable hints based on the size it
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85 is used at, so setting this is important for font
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86 objects. <function>hb_font_set_ppem(font, x_ppem,
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87 y_ppem)</function> sets the pixels-per-EM value of the font. You
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88 can also set the point size of the font with
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89 <function>hb_font_set_ptem(font, ptem)</function>. HarfBuzz uses the
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90 industry standard 72 points per inch.
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91 </para>
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92 <para>
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93 HarfBuzz lets you specify the degree subpixel precision you want
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94 through a scaling factor. You can set horizontal and
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95 vertical scaling factors on the
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96 font by calling <function>hb_font_set_scale(font, x_scale,
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97 y_scale)</function>.
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98 </para>
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99 <para>
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100 There may be times when you are handed a font object and need to
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101 access the face object that it comes from. For that, you can call
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102 </para>
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103 <programlisting language="C">
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104 hb_face = hb_font_get_face(hb_font);
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105 </programlisting>
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106 <para>
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107 You can also create a font object from an existing font object
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108 using the <function>hb_font_create_sub_font()</function>
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109 function. This creates a child font object that is initiated
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110 with the same attributes as its parent; it can be used to
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111 quickly set up a new font for the purpose of overriding a specific
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112 font-functions method.
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113 </para>
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114 <para>
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115 All face objects and font objects are lifecycle-managed by
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116 HarfBuzz. After creating a face, you increase its reference
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117 count with <function>hb_face_reference(face)</function> and
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118 decrease it with
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119 <function>hb_face_destroy(face)</function>. Likewise, you
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120 increase the reference count on a font with
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121 <function>hb_font_reference(font)</function> and decrease it
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122 with <function>hb_font_destroy(font)</function>.
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123 </para>
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124 <para>
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125 You can also attach user data to face objects and font objects.
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126 </para>
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127 </section>
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128
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129 <section id="fonts-and-faces-custom-functions">
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130 <title>Customizing font functions</title>
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131 <para>
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132 During shaping, HarfBuzz frequently needs to query font objects
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133 to get at the contents and parameters of the glyphs in a font
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134 file. It includes a built-in set of functions that is tailored
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135 to working with OpenType fonts. However, as was the case with
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136 Unicode functions in the buffers chapter, HarfBuzz also wants to
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137 make it easy for you to assign a substitute set of font
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138 functions if you are developing a program to work with a library
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139 or platform that provides its own font functions.
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140 </para>
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141 <para>
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142 Therefore, the HarfBuzz API defines a set of virtual
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143 methods for accessing font-object properties, and you can
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144 replace the defaults with your own selections without
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145 interfering with the shaping process. Each font object in
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146 HarfBuzz includes a structure called
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147 <literal>font_funcs</literal> that serves as a vtable for the
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148 font object. The virtual methods in
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149 <literal>font_funcs</literal> are:
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150 </para>
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151 <itemizedlist>
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152 <listitem>
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153 <para>
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154 <function>hb_font_get_font_h_extents_func_t</function>: returns
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155 the extents of the font for horizontal text.
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156 </para>
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157 </listitem>
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158 <listitem>
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159 <para>
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160 <function>hb_font_get_font_v_extents_func_t</function>: returns
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161 the extents of the font for vertical text.
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162 </para>
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163 </listitem>
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164 <listitem>
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165 <para>
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166 <function>hb_font_get_nominal_glyph_func_t</function>: returns
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167 the font's nominal glyph for a given code point.
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168 </para>
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169 </listitem>
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170 <listitem>
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171 <para>
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172 <function>hb_font_get_variation_glyph_func_t</function>: returns
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173 the font's glyph for a given code point when it is followed by a
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174 given Variation Selector.
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175 </para>
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176 </listitem>
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177 <listitem>
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178 <para>
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179 <function>hb_font_get_nominal_glyphs_func_t</function>: returns
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180 the font's nominal glyphs for a series of code points.
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181 </para>
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182 </listitem>
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183 <listitem>
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184 <para>
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185 <function>hb_font_get_glyph_advance_func_t</function>: returns
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186 the advance for a glyph.
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187 </para>
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188 </listitem>
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189 <listitem>
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190 <para>
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191 <function>hb_font_get_glyph_h_advance_func_t</function>: returns
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192 the advance for a glyph for horizontal text.
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193 </para>
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194 </listitem>
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195 <listitem>
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196 <para>
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197 <function>hb_font_get_glyph_v_advance_func_t</function>:returns
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198 the advance for a glyph for vertical text.
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199 </para>
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200 </listitem>
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201 <listitem>
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202 <para>
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203 <function>hb_font_get_glyph_advances_func_t</function>: returns
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204 the advances for a series of glyphs.
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205 </para>
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206 </listitem>
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207 <listitem>
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208 <para>
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209 <function>hb_font_get_glyph_h_advances_func_t</function>: returns
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210 the advances for a series of glyphs for horizontal text .
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211 </para>
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212 </listitem>
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213 <listitem>
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214 <para>
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215 <function>hb_font_get_glyph_v_advances_func_t</function>: returns
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216 the advances for a series of glyphs for vertical text.
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217 </para>
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218 </listitem>
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219 <listitem>
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220 <para>
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221 <function>hb_font_get_glyph_origin_func_t</function>: returns
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222 the origin coordinates of a glyph.
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223 </para>
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224 </listitem>
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225 <listitem>
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226 <para>
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227 <function>hb_font_get_glyph_h_origin_func_t</function>: returns
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228 the origin coordinates of a glyph for horizontal text.
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229 </para>
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230 </listitem>
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231 <listitem>
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232 <para>
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233 <function>hb_font_get_glyph_v_origin_func_t</function>: returns
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234 the origin coordinates of a glyph for vertical text.
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235 </para>
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236 </listitem>
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237 <listitem>
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238 <para>
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239 <function>hb_font_get_glyph_extents_func_t</function>: returns
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240 the extents for a glyph.
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241 </para>
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242 </listitem>
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243 <listitem>
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244 <para>
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245 <function>hb_font_get_glyph_contour_point_func_t</function>:
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246 returns the coordinates of a specific contour point from a glyph.
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247 </para>
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248 </listitem>
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249 <listitem>
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250 <para>
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251 <function>hb_font_get_glyph_name_func_t</function>: returns the
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252 name of a glyph (from its glyph index).
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253 </para>
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254 </listitem>
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255 <listitem>
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256 <para>
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257 <function>hb_font_get_glyph_from_name_func_t</function>: returns
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258 the glyph index that corresponds to a given glyph name.
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259 </para>
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260 </listitem>
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261 </itemizedlist>
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262 <para>
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263 You can create new font-functions by calling
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264 <function>hb_font_funcs_create()</function>:
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265 </para>
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266 <programlisting language="C">
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267 hb_font_funcs_t *ffunctions = hb_font_funcs_create ();
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268 hb_font_set_funcs (font, ffunctions, font_data, destroy);
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269 </programlisting>
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270 <para>
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271 The individual methods can each be set with their own setter
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272 function, such as
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273 <function>hb_font_funcs_set_nominal_glyph_func(ffunctions,
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274 func, user_data, destroy)</function>.
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275 </para>
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276 <para>
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277 Font-functions structures can be reused for multiple font
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278 objects, and can be reference counted with
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279 <function>hb_font_funcs_reference()</function> and
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280 <function>hb_font_funcs_destroy()</function>. Just like other
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281 objects in HarfBuzz, you can set user-data for each
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282 font-functions structure and assign a destroy callback for
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283 it.
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284 </para>
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285 <para>
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286 You can also mark a font-functions structure as immutable,
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287 with <function>hb_font_funcs_make_immutable()</function>. This
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288 is especially useful if your code is a library or framework that
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289 will have its own client programs. By marking your
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290 font-functions structures as immutable, you prevent your client
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291 programs from changing the configuration and introducing
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292 inconsistencies and errors downstream.
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293 </para>
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294 <para>
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295 To override only some functions while using the default implementation
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296 for the others, you will need to create a sub-font. By default, the
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297 sub-font uses the font functions of its parent except for the functions
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298 that were explicitly set. The following code will override only the
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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299 <function>hb_font_get_nominal_glyph_func_t</function> for the sub-font:
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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300 </para>
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parents:
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301 <programlisting language="C">
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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302 hb_font_t *subfont = hb_font_create_sub_font (font)
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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303 hb_font_funcs_t *ffunctions = hb_font_funcs_create ();
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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304 hb_font_funcs_set_nominal_glyph_func (ffunctions, func, user_data, destroy);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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305 hb_font_set_funcs (subfont, ffunctions, font_data, destroy);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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306 hb_font_funcs_destroy (ffunctions);
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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307 </programlisting>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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308 </section>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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309
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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310 <section id="fonts-and-faces-native-opentype">
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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311 <title>Font objects and HarfBuzz's native OpenType implementation</title>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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312 <para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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313 By default, whenever HarfBuzz creates a font object, it will
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
314 configure the font to use a built-in set of font functions that
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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315 supports contemporary OpenType font internals. If you want to
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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316 work with OpenType or TrueType fonts, you should be able to use
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
317 these functions without difficulty.
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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318 </para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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319 <para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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320 Many of the methods in the font-functions structure deal with
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
321 the fundamental properties of glyphs that are required for
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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322 shaping text: extents (the maximums and minimums on each axis),
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
323 origins (the <literal>(0,0)</literal> coordinate point which
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
324 glyphs are drawn in reference to), and advances (the amount that
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
325 the cursor needs to be moved after drawing each glyph, including
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
326 any empty space for the glyph's side bearings).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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327 </para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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328 <para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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329 As you can see in the list of functions, there are separate "horizontal"
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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330 and "vertical" variants depending on whether the text is set in
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
331 the horizontal or vertical direction. For some scripts, fonts
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
332 that are designed to support text set horizontally or vertically (for
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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333 example, in Japanese) may include metrics for both text
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
334 directions. When fonts don't include this information, HarfBuzz
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
335 does its best to transform what the font provides.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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336 </para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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337 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
338 In addition to the direction-specific functions, HarfBuzz
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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339 provides some higher-level functions for fetching information
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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340 like extents and advances for a glyph. If you call
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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341 </para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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342 <programlisting language="C">
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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343 hb_font_get_glyph_advance_for_direction(font, direction, extents);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
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344 </programlisting>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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345 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
346 then you can provide any <type>hb_direction_t</type> as the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
347 <parameter>direction</parameter> parameter, and HarfBuzz will
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
348 use the correct function variant for the text direction. There
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
349 are similar higher-level versions of the functions for fetching
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
350 extents, origin coordinates, and contour-point
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
351 coordinates. There are also addition and subtraction functions
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
352 for moving points with respect to the origin.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
353 </para>
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Franz Glasner <fzglas.hg@dom66.de>
parents:
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354 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
355 There are also methods for fetching the glyph ID that
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
356 corresponds to a Unicode code point (possibly when followed by a
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
357 variation-selector code point), fetching the glyph name from the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
358 font, and fetching the glyph ID that corresponds to a glyph name
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
359 you already have.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
360 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
361 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
362 HarfBuzz also provides functions for converting between glyph
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
363 names and string
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
364 variables. <function>hb_font_glyph_to_string(font, glyph, s,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
365 size)</function> retrieves the name for the glyph ID
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
366 <parameter>glyph</parameter> from the font object. It generates a
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
367 generic name of the form <literal>gidDDD</literal> (where DDD is
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
368 the glyph index) if there is no name for the glyph in the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
369 font. The <function>hb_font_glyph_from_string(font, s, len,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
370 glyph)</function> takes an input string <parameter>s</parameter>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
371 and looks for a glyph with that name in the font, returning its
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
372 glyph ID in the <parameter>glyph</parameter>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
373 output parameter. It automatically parses
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
374 <literal>gidDDD</literal> and <literal>uniUUUU</literal> strings.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
375 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
376 </section>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
377
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
378
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
379 <!-- Commenting out FreeType integration section-holder for now. May move
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
380 to the full-blown Integration Chapter. -->
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
381
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
382 <!-- <section id="fonts-and-faces-freetype">
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
383 <title>Using FreeType</title>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
384 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
385
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Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
386 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
387 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
388
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
389 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
390 </section> -->
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
391
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
392 <section id="fonts-and-faces-variable">
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
393 <title>Working with OpenType Variable Fonts</title>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
394 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
395 If you are working with OpenType Variable Fonts, there are a few
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
396 additional functions you should use to specify the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
397 variation-axis settings of your font object. Without doing so,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
398 your variable font's font object can still be used, but only at
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
399 the default setting for every axis (which, of course, is
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
400 sometimes what you want, but does not cover general usage).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
401 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
402 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
403 HarfBuzz manages variation settings in the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
404 <type>hb_variation_t</type> data type, which holds a <property>tag</property> for the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
405 variation-axis identifier tag and a <property>value</property> for its
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
406 setting. You can retrieve the list of variation axes in a font
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
407 binary from the face object (not from a font object, notably) by
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
408 calling <function>hb_ot_var_get_axis_count(face)</function> to
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
409 find the number of axes, then using
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
410 <function>hb_ot_var_get_axis_infos()</function> to collect the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
411 axis structures:
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
412 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
413 <programlisting language="C">
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
414 axes = hb_ot_var_get_axis_count(face);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
415 ...
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
416 hb_ot_var_get_axis_infos(face, 0, axes, axes_array);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
417 </programlisting>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
418 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
419 For each axis returned in the array, you can can access the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
420 identifier in its <property>tag</property>. HarfBuzz also has
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
421 tag definitions predefined for the five standard axes specified
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
422 in OpenType (<literal>ital</literal> for italic,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
423 <literal>opsz</literal> for optical size,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
424 <literal>slnt</literal> for slant, <literal>wdth</literal> for
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
425 width, and <literal>wght</literal> for weight). Each axis also
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
426 has a <property>min_value</property>, a
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
427 <property>default_value</property>, and a <property>max_value</property>.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
428 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
429 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
430 To set your font object's variation settings, you call the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
431 <function>hb_font_set_variations()</function> function with an
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
432 array of <type>hb_variation_t</type> variation settings. Let's
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
433 say our font has weight and width axes. We need to specify each
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
434 of the axes by tag and assign a value on the axis:
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
435 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
436 <programlisting language="C">
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
437 unsigned int variation_count = 2;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
438 hb_variation_t variation_data[variation_count];
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
439 variation_data[0].tag = HB_OT_TAG_VAR_AXIS_WIDTH;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
440 variation_data[1].tag = HB_OT_TAG_VAR_AXIS_WEIGHT;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
441 variation_data[0].value = 80;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
442 variation_data[1].value = 750;
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
443 ...
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
444 hb_font_set_variations(font, variation_data, variation_count);
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
445 </programlisting>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
446 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
447 That should give us a slightly condensed font ("normal" on the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
448 <literal>wdth</literal> axis is 100) at a noticeably bolder
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
449 weight ("regular" is 400 on the <literal>wght</literal> axis).
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
450 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
451 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
452 In practice, though, you should always check that the value you
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
453 want to set on the axis is within the
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
454 [<property>min_value</property>,<property>max_value</property>]
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
455 range actually implemented in the font's variation axis. After
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
456 all, a font might only provide lighter-than-regular weights, and
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
457 setting a heavier value on the <literal>wght</literal> axis will
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
458 not change that.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
459 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
460 <para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
461 Once your variation settings are specified on your font object,
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
462 however, shaping with a variable font is just like shaping a
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
463 static font.
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
464 </para>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
465 </section>
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
466
b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
Franz Glasner <fzglas.hg@dom66.de>
parents:
diff changeset
467 </chapter>