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<?xml version="1.0"?>
<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd"
[
<!ENTITY % local.common.attrib "xmlns:xi CDATA #FIXED 'http://www.w3.org/2003/XInclude'">
<!ENTITY % gtkdocentities SYSTEM "xml/gtkdocentities.ent">
%gtkdocentities;
]>
<book id="index" xmlns:xi="http://www.w3.org/2003/XInclude">
<bookinfo>
<title>&package_name; Reference Manual</title>
<releaseinfo>
For &package_string;.
The latest version of this documentation can be found on-line at
<ulink role="online-location" url="https://developer.xfce.org/&package_name;/index.html">https://developer.xfce.org/&package_name;/</ulink>.
</releaseinfo>
<copyright>
<year>2004-2007</year>
<holder>os-cillation e.K.</holder>
</copyright>
<copyright>
<year>2009-2024</year>
<holder>Xfce Development Team</holder>
</copyright>
</bookinfo>
<part id="exo-overview">
<title>Overview</title>
<para>
exo is an extension library for <ulink url="https://xfce.org/" type="http">Xfce</ulink>,
originally developed by <ulink url="https://www.os-cillation.com/" type="http">os-cillation</ulink>.
While Xfce comes with quite a few libraries that are targeted at desktop development,
libexo is targeted at application developement - in particular, developing applications for
the Xfce Desktop Environment.
</para>
<para>
The <application>exo</application> library depends on the following libraries:
<variablelist>
<varlistentry>
<term>GLib</term>
<listitem>
<para>
A general-purpose utility library, not specific to graphical user interfaces.
GLib provides many useful data types, macros, type conversions,
string utilities, file utilities, a main loop abstraction, and so on.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>Pango</term>
<listitem>
<para>
Pango is a library for internationalized text handling. It centers
around the <link linkend="PangoLayout">PangoLayout</link> object, representing
a paragraph of text. Pango provides the engine for <link
linkend="GtkTextView">GtkTextView</link>, <link linkend="GtkLabel">GtkLabel</link>,
<link linkend="GtkEntry">GtkEntry</link>, and other widgets that display text.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ATK</term>
<listitem>
<para>
ATK is the Accessibility Toolkit. It provides a set of generic
interfaces allowing accessibility technologies to interact with a
graphical user interface. For example, a screen reader uses ATK to
discover the text in an interface and read it to blind users. GTK+
widgets have built-in support for accessibility using the ATK
framework.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>GdkPixbuf</term>
<listitem>
<para>
This is a small library which allows you to create <link linkend="GdkPixbuf">GdkPixbuf</link>
("pixel buffer") objects from image data or image files. Use a <link linkend="GdkPixbuf">GdkPixbuf</link>
in combination with <link linkend="GtkImage">GtkImage</link> to display images.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>GDK</term>
<listitem>
<para>
GDK is the abstraction layer that allows GTK+ to support multiple
windowing systems. GDK provides drawing and window system facilities
on X11, Windows, and the Linux framebuffer device.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>GTK+</term>
<listitem>
<para>
The GTK+ library contains <firstterm>widgets</firstterm>, that is, GUI
components such as <link linkend="GtkButton">GtkButton</link> or
<link linkend="GtkTextView">GtkTextView</link>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>libxfce4util</term>
<listitem>
<para>
The Xfce utility library provides various helper functions and classes for
C programmers, that aren't directly related to GUI tasks.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</part>
<part id="exo-widgets">
<title>Additional widgets</title>
<para>
This section describes the additional widgets provided by the <application>exo</application> library. The <link
linkend="ExoIconView">ExoIconView</link> and <link linkend="ExoTreeView">ExoTreeView</link>
are views that display data from a <link linkend="GtkTreeModel">GtkTreeModel</link>, and can be seen as extensions to the basic widgets
in Gtk+. For example, both <link linkend="ExoIconView">ExoIconView</link> and <link linkend="ExoTreeView">ExoTreeView</link> offer support
for single-click mode, which is not provided by their Gtk+ counterparts.
</para>
<para>
The <link linkend="ExoIconChooserDialog">ExoIconChooserDialog</link> is a special widget, that presents a dialog to let the user select
an icon from the current icon theme or from an image file in the file system. You should use this dialog whenever you want the user to
select an icon, instead of just displaying a <link linkend="GtkFileChooserDialog">GtkFileChooserDialog</link>.
</para>
<xi:include href="xml/exo-icon-chooser-dialog.xml"/>
<xi:include href="xml/exo-icon-view.xml"/>
<xi:include href="xml/exo-tree-view.xml"/>
</part>
<part id="exo-cell-renderers">
<title>Additional cell renderers</title>
<para>
Gtk+ contains various cell renderers that are intended to be used with <link linkend="GtkTreeView">GtkTreeView</link>
and <link linkend="GtkComboBox">GtkComboBox</link>, but are difficult to use with <link linkend="ExoIconView">ExoIconView</link>
(or even <link linkend="GtkIconView">GtkIconView</link>), mainly because the renderers do not follow the state of the view and
render appropriate indicators.
</para>
<para>
Because of these issues, the <link linkend="ExoCellRendererIcon">ExoCellRendererIcon</link> class is provided, which
includes a <literal>follow-state</literal> property that tells whether the renderer should follow the state of the view and
draw appropriate indicators.
</para>
<para>
The <link linkend="ExoCellRendererIcon">ExoCellRendererIcon</link> class should also be preferred over the the <link
linkend="GtkCellRendererPixbuf">GtkCellRendererPixbuf</link> class when using named icons or image files because it uses a fixed
size for layouting and loads the icons only on-demand (utilizing the thumbnail database whenever possible).
</para>
<xi:include href="xml/exo-cell-renderer-icon.xml"/>
</part>
<part id="exo-jobs">
<title>Framework for threaded/asynchronous jobs</title>
<para>
<link linkend="ExoJob">ExoJob</link> provides a simple way to deal with threaded/asynchronous operations (called jobs here).
It can be used to wrap any kind of blocking function calls like file operations or web service communication. It can be
subclassed to add additional signals for progress information or password requests.
<link linkend="ExoSimpleJob">ExoSimpleJob</link> is useful in situations where you don't need additional signals. It takes
a <link linkend="ExoSimpleJobFunc">ExoSimpleJobFunc</link> callback and creates a job so one doesn't have to subclass
<link linkend="ExoJob">ExoJob</link> just to execute a single function asynchronously.
</para>
<xi:include href="xml/exo-job.xml"/>
<xi:include href="xml/exo-simple-job.xml"/>
</part>
<part id="exo-extensions">
<title>Extensions to existing frameworks</title>
<para>
This section describes extensions to existing frameworks provided by the <application>exo</application>, that range from additional
methods for certain classes to specialized functions dealing with <link linkend="GdkPixbuf">GdkPixbuf</link>s.
</para>
<xi:include href="xml/exo-gdk-pixbuf-extensions.xml"/>
<xi:include href="xml/exo-gobject-extensions.xml"/>
<xi:include href="xml/exo-gtk-extensions.xml"/>
</part>
<part id="exo-miscelleanous">
<title>Miscelleanous</title>
<xi:include href="xml/exo-config.xml"/>
<xi:include href="xml/exo-binding.xml"/>
<xi:include href="xml/exo-execute.xml"/>
<xi:include href="xml/exo-string.xml"/>
<xi:include href="xml/exo-utils.xml"/>
</part>
<chapter>
<title>API Index</title>
<index id="api-index-full">
<title>All symbols</title>
</index>
<index id="api-index-0.3.1">
<title>Added in 0.3.1</title>
</index>
<index id="api-index-0.3.1.1">
<title>Added in 0.3.1.1</title>
</index>
<index id="api-index-0.3.1.3">
<title>Added in 0.3.1.3</title>
</index>
<index id="api-index-0.3.1.5">
<title>Added in 0.3.1.5</title>
</index>
<index id="api-index-0.3.1.9">
<title>Added in 0.3.1.9</title>
</index>
<index id="api-index-0.3.3">
<title>Added in 0.3.3</title>
</index>
<index id="api-index-0.4.0">
<title>Added in 0.4.0</title>
</index>
<index id="api-index-0.5.0">
<title>Added in 0.5.0</title>
</index>
<index id="api-index-0.7.1">
<title>Added in 0.7.1</title>
</index>
<index id="api-index-0.10.2">
<title>Added in 0.10.2</title>
</index>
<index id="api-index-0.11.4">
<title>Added in 0.11.4</title>
</index>
<index id="api-index-0.11.5">
<title>Added in 0.11.5</title>
</index>
<index id="api-index-deprecated">
<title>Deprecated symbols</title>
<xi:include href="xml/api-index-deprecated.xml"><xi:fallback /></xi:include>
</index>
</chapter>
<index>
<title>Index</title>
</index>
</book>
<!--
vi:set ts=2 sw=2 et ai:
-->
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