⚝
One Hat Cyber Team
⚝
Your IP:
216.73.216.177
Server IP:
50.6.168.112
Server:
Linux server-617809.webnetzimbabwe.com 5.14.0-570.25.1.el9_6.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Jul 9 04:57:09 EDT 2025 x86_64
Server Software:
Apache
PHP Version:
8.4.10
Buat File
|
Buat Folder
Eksekusi
Dir :
~
/
usr
/
share
/
gtk-doc
/
html
/
harfbuzz
/
View File Name :
fonts-and-faces-native-opentype.html
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>Font objects and HarfBuzz's native OpenType implementation: HarfBuzz Manual</title> <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> <link rel="home" href="index.html" title="HarfBuzz Manual"> <link rel="up" href="fonts-and-faces.html" title="Fonts, faces, and output"> <link rel="prev" href="fonts-and-faces-custom-functions.html" title="Customizing font functions"> <link rel="next" href="fonts-and-faces-variable.html" title="Working with OpenType Variable Fonts"> <meta name="generator" content="GTK-Doc V1.32 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> <td width="100%" align="left" class="shortcuts"></td> <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> <td><a accesskey="u" href="fonts-and-faces.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> <td><a accesskey="p" href="fonts-and-faces-custom-functions.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> <td><a accesskey="n" href="fonts-and-faces-variable.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> </tr></table> <div class="section"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> <a name="fonts-and-faces-native-opentype"></a>Font objects and HarfBuzz's native OpenType implementation</h2></div></div></div> <p> By default, whenever HarfBuzz creates a font object, it will configure the font to use a built-in set of font functions that supports contemporary OpenType font internals. If you want to work with OpenType or TrueType fonts, you should be able to use these functions without difficulty. </p> <p> Many of the methods in the font-functions structure deal with the fundamental properties of glyphs that are required for shaping text: extents (the maximums and minimums on each axis), origins (the <code class="literal">(0,0)</code> coordinate point which glyphs are drawn in reference to), and advances (the amount that the cursor needs to be moved after drawing each glyph, including any empty space for the glyph's side bearings). </p> <p> As you can see in the list of functions, there are separate "horizontal" and "vertical" variants depending on whether the text is set in the horizontal or vertical direction. For some scripts, fonts that are designed to support text set horizontally or vertically (for example, in Japanese) may include metrics for both text directions. When fonts don't include this information, HarfBuzz does its best to transform what the font provides. </p> <p> In addition to the direction-specific functions, HarfBuzz provides some higher-level functions for fetching information like extents and advances for a glyph. If you call </p> <pre class="programlisting"> hb_font_get_glyph_advance_for_direction(font, direction, extents); </pre> <p> then you can provide any <span class="type">hb_direction_t</span> as the <em class="parameter"><code>direction</code></em> parameter, and HarfBuzz will use the correct function variant for the text direction. There are similar higher-level versions of the functions for fetching extents, origin coordinates, and contour-point coordinates. There are also addition and subtraction functions for moving points with respect to the origin. </p> <p> There are also methods for fetching the glyph ID that corresponds to a Unicode code point (possibly when followed by a variation-selector code point), fetching the glyph name from the font, and fetching the glyph ID that corresponds to a glyph name you already have. </p> <p> HarfBuzz also provides functions for converting between glyph names and string variables. <code class="function">hb_font_glyph_to_string(font, glyph, s, size)</code> retrieves the name for the glyph ID <em class="parameter"><code>glyph</code></em> from the font object. It generates a generic name of the form <code class="literal">gidDDD</code> (where DDD is the glyph index) if there is no name for the glyph in the font. The <code class="function">hb_font_glyph_from_string(font, s, len, glyph)</code> takes an input string <em class="parameter"><code>s</code></em> and looks for a glyph with that name in the font, returning its glyph ID in the <em class="parameter"><code>glyph</code></em> output parameter. It automatically parses <code class="literal">gidDDD</code> and <code class="literal">uniUUUU</code> strings. </p> </div> <div class="footer"> <hr>Generated by GTK-Doc V1.32</div> </body> </html>