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|
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</div>
|
||
</aside>
|
||
<main class="main">
|
||
<div class="content">
|
||
<article role="main">
|
||
<label class="toc-overlay-icon toc-content-icon" for="__toc">
|
||
<i class="icon"><svg><use href="#svg-toc"></use></svg></i>
|
||
</label>
|
||
<section id="libraries">
|
||
<h1>Libraries<a class="headerlink" href="#libraries" title="Permalink to this headline">#</a></h1>
|
||
<p>An overview of GNOME platform libraries.</p>
|
||
<section id="user-interfaces">
|
||
<h2>User Interfaces<a class="headerlink" href="#user-interfaces" title="Permalink to this headline">#</a></h2>
|
||
<p>GNOME’s user interface libraries are used by all GNOME applications. They
|
||
provide everything you need to create a beautiful and easy to use interface for
|
||
your app.</p>
|
||
<section id="gtk">
|
||
<h3>GTK<a class="headerlink" href="#gtk" title="Permalink to this headline">#</a></h3>
|
||
<p><a class="reference external" href="https://www.gtk.org">GTK</a> is GNOME’s user interface toolkit, and is a
|
||
comprehensive resource for creating application user interfaces. It includes
|
||
a wide range of user interface widgets, as well as providing access to an array
|
||
of system-level features.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/gtk4/">GTK4 API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="libadwaita">
|
||
<h3>libadwaita<a class="headerlink" href="#libadwaita" title="Permalink to this headline">#</a></h3>
|
||
<p>Libadwaita supplements GTK with additional widgets and classes. It is used to
|
||
implement the standard GNOME design patterns as documented in the GNOME
|
||
Human Interface Guidelines.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://gnome.pages.gitlab.gnome.org/libadwaita/doc/">Libadwaita API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="webkitgtk">
|
||
<h3>WebKitGTK<a class="headerlink" href="#webkitgtk" title="Permalink to this headline">#</a></h3>
|
||
<p>WebKitGTK allows adding web functionality to applications, such as HTML
|
||
rendering and embedded web views.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://webkitgtk.org/reference/webkit2gtk/stable/index.html">WebKitGTK API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
</section>
|
||
<section id="fonts-rendering">
|
||
<h2>Fonts & Rendering<a class="headerlink" href="#fonts-rendering" title="Permalink to this headline">#</a></h2>
|
||
<p>Simple text display and styling is provided by GTK. The GNOME platform also
|
||
includes a set of lower-level font rendering and layout libraries, which apps
|
||
may sometimes need to use directly for more specialised font and typographic functionality.</p>
|
||
<section id="fontconfig">
|
||
<h3>Fontconfig<a class="headerlink" href="#fontconfig" title="Permalink to this headline">#</a></h3>
|
||
<p><a class="reference external" href="https://www.freedesktop.org/wiki/Software/fontconfig/">Fontconfig</a> provides
|
||
access to the fonts that are available on the system. It provides detailed
|
||
information about available fonts, as well as the ability to match fonts
|
||
according to criteria such as language coverage.</p>
|
||
</section>
|
||
<section id="freetype">
|
||
<h3>FreeType<a class="headerlink" href="#freetype" title="Permalink to this headline">#</a></h3>
|
||
<p><a class="reference external" href="https://www.freetype.org/">FreeType</a> is a font rendering library used by
|
||
the GNOME platform. Most applications are unlikely to need to use FreeType
|
||
directly. However, it can be useful for specialist font and typographic
|
||
features.</p>
|
||
</section>
|
||
<section id="harfbuzz">
|
||
<h3>HarfBuzz<a class="headerlink" href="#harfbuzz" title="Permalink to this headline">#</a></h3>
|
||
<p><a class="reference external" href="https://harfbuzz.github.io/">HarfBuzz</a> is a text shaping library that is
|
||
used by the GNOME platform. Most apps are unlikely to need to use HarfBuzz
|
||
directly, unless they include font or typographic features.</p>
|
||
</section>
|
||
<section id="pango">
|
||
<h3>Pango<a class="headerlink" href="#pango" title="Permalink to this headline">#</a></h3>
|
||
<p>Pango is a text layout library. It plays an important role in
|
||
internationalization, has full Unicode support, and supports a range of writing
|
||
systems. Pango APIs are exposed through GTK and can be used for things like
|
||
setting text as bold or italic.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/Pango/">Pango API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
</section>
|
||
<section id="image-loading">
|
||
<h2>Image Loading<a class="headerlink" href="#image-loading" title="Permalink to this headline">#</a></h2>
|
||
<section id="gdk-pixbuf">
|
||
<h3>gdk-pixbuf<a class="headerlink" href="#gdk-pixbuf" title="Permalink to this headline">#</a></h3>
|
||
<p>gdk-pixbuf is an image loading library which is used by GTK. For simple loading
|
||
and display of images, GTK can typically used on its own. However, gdk-pixbuf
|
||
does provide useful functionality for operating on images as pixel buffers,
|
||
such as changing colors or creating composites from multiple images, and saving
|
||
the result.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/gdk-pixbuf/">gdk-pixbuf API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="librsvg">
|
||
<h3>librsvg<a class="headerlink" href="#librsvg" title="Permalink to this headline">#</a></h3>
|
||
<p>librsvg is a library that renders Scalable Vector Graphics (SVG). It
|
||
can be used to display static SVG assets from GTK and gdk-pixbuf, or
|
||
to render SVG documents to <a class="reference external" href="https://cairographics.org">Cairo</a> surfaces in general.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://gnome.pages.gitlab.gnome.org/librsvg/Rsvg-2.0/index.html">librsvg API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
</section>
|
||
<section id="d-drawing-cairo">
|
||
<h2>2D Drawing: Cairo<a class="headerlink" href="#d-drawing-cairo" title="Permalink to this headline">#</a></h2>
|
||
<p>Cairo can be used to draw custom 2D graphics. These can be embedded in GTK
|
||
user interfaces, by drawing on GTK widgets. Graphics can also be outputted to
|
||
PDF and SVG. Cairo graphics are resolution-independent and antialiased.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://cairographics.org/manual/">Cairo API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="file-system-access-operations-gfile">
|
||
<h2>File System Access & Operations: GFile<a class="headerlink" href="#file-system-access-operations-gfile" title="Permalink to this headline">#</a></h2>
|
||
<p>GIO provides a powerful virtual file system abstraction layer. Its GFile
|
||
interface can be used to read information from the filesystem (such as
|
||
traversing directories, querying file metadata, and so on) as well as and
|
||
carrying out file operations. GFile can also be used to monitor files and
|
||
directories for changes.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/gio/iface.File.html">GFile API Reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="ipc-gdbus">
|
||
<h2>IPC: GDBus<a class="headerlink" href="#ipc-gdbus" title="Permalink to this headline">#</a></h2>
|
||
<p><a class="reference external" href="https://www.freedesktop.org/wiki/Software/dbus/">D-Bus</a> is one of the
|
||
primary IPC systems used in GNOME, and is used for communication between both
|
||
applications and services. Applications can use D-Bus to communicate with
|
||
system services, such as hardware-related daemons, or for communication between
|
||
their own processes.</p>
|
||
<p>GDBus is included in the GIO library, and provides a comprehensive
|
||
implementation of the D-Bus protocol, as well as high-level API to implement
|
||
both providers and consumers of D-Bus interfaces.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/gio/stable/gdbus-lowlevel.html">GDBus low level API reference</a></p></li>
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/gio/stable/gdbus-convenience.html">GDBus high level API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="multimedia-gstreamer">
|
||
<h2>Multimedia: GStreamer<a class="headerlink" href="#multimedia-gstreamer" title="Permalink to this headline">#</a></h2>
|
||
<p>GTK 4 includes its own built-in video playback capability, which can be used
|
||
for simple video playback. For other multimedia requirements, GStreamer is an
|
||
integrated part of the GNOME platform, and can be used for simple audio
|
||
and video playback, through to complex non-linear multimedia editing.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://gstreamer.freedesktop.org/documentation/">GStreamer API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="settings-gsettings">
|
||
<h2>Settings: GSettings<a class="headerlink" href="#settings-gsettings" title="Permalink to this headline">#</a></h2>
|
||
<p>GSettings is the GNOME library for reading and writing user settings. It
|
||
allows storing a variety of settings types, including integers and arrays of
|
||
strings.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/gio/class.Settings.html">GSettings API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="data-storage">
|
||
<h2>Data Storage<a class="headerlink" href="#data-storage" title="Permalink to this headline">#</a></h2>
|
||
<p>The GNOME platform includes a variety of different data storage libraries,
|
||
which are suitable for a range of requirements and needs.</p>
|
||
<section id="gmarkup">
|
||
<h3>GMarkup<a class="headerlink" href="#gmarkup" title="Permalink to this headline">#</a></h3>
|
||
<p>GMarkup is an XML parser which can be used to read/write simple XML. It is
|
||
appropriate for data which is read and written by the same app and not shared
|
||
between programs.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/glib/struct.MarkupParseContext.html">GMarkup API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="libxml2">
|
||
<h3>libxml2<a class="headerlink" href="#libxml2" title="Permalink to this headline">#</a></h3>
|
||
<p>Libxml2 is a highly compliant XML parser/generator. It is suited to reading and
|
||
writing XML that is shared between different projects, and has a defined
|
||
specification and XML schema. Example uses of libxml2 include document rendering
|
||
and editing.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="http://www.xmlsoft.org/html/index.html">Libxml2 reference manual</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="keyfiles">
|
||
<h3>Keyfiles<a class="headerlink" href="#keyfiles" title="Permalink to this headline">#</a></h3>
|
||
<p>Key-value files are <a class="reference external" href="https://en.wikipedia.org/wiki/INI_file">INI-like</a> files
|
||
that can be used to store (grouped) key/value pairs. An example of key-value
|
||
files are the <a class="reference external" href="https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html">desktop files</a>
|
||
used to describe applications.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://docs.gtk.org/glib/struct.KeyFile.html">GKeyFile API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="json-glib">
|
||
<h3>JSON-GLib<a class="headerlink" href="#json-glib" title="Permalink to this headline">#</a></h3>
|
||
<p>JSON-GLib implements a full JSON parser and generator using GLib and GObject,
|
||
and integrates JSON with GLib data types.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://gnome.pages.gitlab.gnome.org/json-glib/">JSON-GLib API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="gda">
|
||
<h3>GDA<a class="headerlink" href="#gda" title="Permalink to this headline">#</a></h3>
|
||
<p>libgda is a library which provides access to multiple SQL-based relational
|
||
databases, including SQLite, MySQL, Postgres, MSAccess and more. Databases can
|
||
either be local or remotely hosted. libgda includes a number of tools,
|
||
including a SQL console, a data sources administration tool, and a database
|
||
browser.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/libgda/stable/">Libgda API reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="gom">
|
||
<h3>GOM<a class="headerlink" href="#gom" title="Permalink to this headline">#</a></h3>
|
||
<p>GOM is a <a class="reference external" href="https://en.m.wikipedia.org/wiki/Data_mapper_pattern">data mapper</a>
|
||
for SQLite. It supports asynchronoous fetching and many-to-many tables, and
|
||
helps with building search queries and database migrations.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://gitlab.gnome.org/GNOME/gom">GOM project page</a></p></li>
|
||
</ul>
|
||
</section>
|
||
</section>
|
||
<section id="networking">
|
||
<h2>Networking<a class="headerlink" href="#networking" title="Permalink to this headline">#</a></h2>
|
||
<p>GNOME libraries provide access to a range of networking functionality and
|
||
features.</p>
|
||
<section id="gsocket">
|
||
<h3>GSocket<a class="headerlink" href="#gsocket" title="Permalink to this headline">#</a></h3>
|
||
<p>GIO includes high-level network features, such as monitoring the network state
|
||
of the system, creating network connections, implementing network services, and
|
||
accepting client connections.</p>
|
||
<p>GIO also provides a comprehensive set of low level networking APIs to abstract
|
||
sockets, addresses, and proxies.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/gio/stable/highlevel-socket.html">GIO high-level network support</a></p></li>
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/gio/stable/networking.html">GIO low-level network support</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="tls-dns-support">
|
||
<h3>TLS & DNS support<a class="headerlink" href="#tls-dns-support" title="Permalink to this headline">#</a></h3>
|
||
<p>GIO provides support for <a class="reference external" href="https://en.wikipedia.org/wiki/Transport_Layer_Security">TLS</a>
|
||
connections, both client and server side. It also supports resolvers for
|
||
proxies, names and services.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/gio/stable/tls.html">GIO TLS reference</a></p></li>
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/gio/stable/resolver.html">GIO DNS reference</a></p></li>
|
||
</ul>
|
||
</section>
|
||
<section id="avahi">
|
||
<h3>Avahi<a class="headerlink" href="#avahi" title="Permalink to this headline">#</a></h3>
|
||
<p><a class="reference external" href="http://avahi.org/">Avahi</a> implements <a class="reference external" href="https://en.wikipedia.org/wiki/Zero-configuration_networking">Zeroconf Networking</a>.
|
||
It allows programs to discover services like printers on local networks without
|
||
prior configuration. It also allows applications to set up services that are
|
||
reachable through the local network without configuration; for example, a chat
|
||
program that “finds” other chat users in a LAN without having to set up a
|
||
central chat server first.</p>
|
||
</section>
|
||
<section id="soup">
|
||
<h3>Soup<a class="headerlink" href="#soup" title="Permalink to this headline">#</a></h3>
|
||
<p>Soup is an HTTP library designed to be used in graphical applications. It uses
|
||
asynchronous operations to avoid blocking the user interface while network
|
||
requests are being made.</p>
|
||
<p>Soup provides functionality for using HTTP cookies, SSL encrypted connections,
|
||
and the XML-RPC protocol based on HTTP.</p>
|
||
<ul class="simple">
|
||
<li><p><a class="reference external" href="https://developer-old.gnome.org/libsoup/stable/">Soup reference manual</a></p></li>
|
||
</ul>
|
||
</section>
|
||
</section>
|
||
</section>
|
||
|
||
</article>
|
||
<footer>
|
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|
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</footer>
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<aside class="toc-drawer">
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<div class="toc-sticky toc-scroll">
|
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<div class="toc-title-container">
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<span class="toc-title">
|
||
Contents
|
||
</span>
|
||
</div>
|
||
<div class="toc-tree-container">
|
||
<div class="toc-tree">
|
||
<ul>
|
||
<li><a class="reference internal" href="#">Libraries</a><ul>
|
||
<li><a class="reference internal" href="#user-interfaces">User Interfaces</a><ul>
|
||
<li><a class="reference internal" href="#gtk">GTK</a></li>
|
||
<li><a class="reference internal" href="#libadwaita">libadwaita</a></li>
|
||
<li><a class="reference internal" href="#webkitgtk">WebKitGTK</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#fonts-rendering">Fonts & Rendering</a><ul>
|
||
<li><a class="reference internal" href="#fontconfig">Fontconfig</a></li>
|
||
<li><a class="reference internal" href="#freetype">FreeType</a></li>
|
||
<li><a class="reference internal" href="#harfbuzz">HarfBuzz</a></li>
|
||
<li><a class="reference internal" href="#pango">Pango</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#image-loading">Image Loading</a><ul>
|
||
<li><a class="reference internal" href="#gdk-pixbuf">gdk-pixbuf</a></li>
|
||
<li><a class="reference internal" href="#librsvg">librsvg</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#d-drawing-cairo">2D Drawing: Cairo</a></li>
|
||
<li><a class="reference internal" href="#file-system-access-operations-gfile">File System Access & Operations: GFile</a></li>
|
||
<li><a class="reference internal" href="#ipc-gdbus">IPC: GDBus</a></li>
|
||
<li><a class="reference internal" href="#multimedia-gstreamer">Multimedia: GStreamer</a></li>
|
||
<li><a class="reference internal" href="#settings-gsettings">Settings: GSettings</a></li>
|
||
<li><a class="reference internal" href="#data-storage">Data Storage</a><ul>
|
||
<li><a class="reference internal" href="#gmarkup">GMarkup</a></li>
|
||
<li><a class="reference internal" href="#libxml2">libxml2</a></li>
|
||
<li><a class="reference internal" href="#keyfiles">Keyfiles</a></li>
|
||
<li><a class="reference internal" href="#json-glib">JSON-GLib</a></li>
|
||
<li><a class="reference internal" href="#gda">GDA</a></li>
|
||
<li><a class="reference internal" href="#gom">GOM</a></li>
|
||
</ul>
|
||
</li>
|
||
<li><a class="reference internal" href="#networking">Networking</a><ul>
|
||
<li><a class="reference internal" href="#gsocket">GSocket</a></li>
|
||
<li><a class="reference internal" href="#tls-dns-support">TLS & DNS support</a></li>
|
||
<li><a class="reference internal" href="#avahi">Avahi</a></li>
|
||
<li><a class="reference internal" href="#soup">Soup</a></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
|
||
</div>
|
||
</div>
|
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</div>
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</aside>
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</main>
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</div><script data-url_root="../../" id="documentation_options" src="../../_static/documentation_options.js"></script>
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<script src="../../_static/jquery.js"></script>
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<script src="../../_static/underscore.js"></script>
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<script src="../../_static/doctools.js"></script>
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<script src="../../_static/scripts/furo.js"></script>
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</body>
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</html> |