265 lines
8.9 KiB
XML
265 lines
8.9 KiB
XML
<?xml version='1.0' encoding='UTF-8'?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
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"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [
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<!ENTITY appurl "http://www.clutter-project.org">
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<!ENTITY docurl "http://docs.clutter-project.org/docs/clutter-cookbook">
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<!ENTITY license_url "http://creativecommons.org/licenses/by-nc-sa/2.0/uk/">
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<!ENTITY ebassi_mail "ebassi@linux.intel.com">
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<!ENTITY elliot_mail "elliot.smith@intel.com">
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<!ENTITY apiversion "@CLUTTER_API_VERSION@">
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]>
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<book lang="en"
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xmlns:xi="http://www.w3.org/2003/XInclude">
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<bookinfo>
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<authorgroup>
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<author>
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<firstname>Emmanuele</firstname>
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<surname>Bassi</surname>
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<address><email>&ebassi_mail;</email></address>
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</author>
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<author>
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<firstname>Elliot</firstname>
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<surname>Smith</surname>
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<address><email>&elliot_mail;</email></address>
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</author>
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</authorgroup>
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<copyright>
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<year>2009, 2010</year>
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<holder>Intel Corporation</holder>
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</copyright>
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<legalnotice>
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<para>Permission is granted to copy, distribute and/or modify this
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document under the terms of the <ulink url="&license_url;">Creative
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Commons Attribution-Non-Commercial-Share Alike 2.0 UK: England &
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Wales</ulink> as published by Creative Commons.</para>
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</legalnotice>
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<title>The Clutter Cookbook</title>
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<releaseinfo>for Clutter &apiversion;</releaseinfo>
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</bookinfo>
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<xi:include href="introduction.xml" />
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<xi:include href="actors.xml" />
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<xi:include href="events.xml" />
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<xi:include href="textures.xml" />
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<xi:include href="animations.xml" />
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<xi:include href="text.xml" />
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<xi:include href="layouts.xml" />
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<appendix id="contributing">
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<title>Contributing to this document</title>
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<para>This document is written in
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<ulink url="http://docbook.org/">Docbook XML</ulink>. The source files
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for this document are located in the subdirectory
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<filename>doc/cookbook</filename> inside the Clutter source directory.</para>
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<para>To maintain some degree of consistency, try to stick to the
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following broad guidelines about how to write Docbook for this
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cookbook:</para>
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<itemizedlist>
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<listitem>
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<para>If adding a new recipe, use the
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<filename>recipe-template.xml</filename> XML file as a basis.
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You can find it in the <filename><clutter source>/doc/cookbook/</filename>
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directory.</para>
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</listitem>
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<listitem>
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<para>Try to indent your XML sensibly using 2 spaces per level
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(we're not too strict, but some indentation helps reading
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the source).</para>
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</listitem>
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<listitem>
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<para>Stick to a column width of around 80 characters.</para>
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</listitem>
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<listitem>
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<para>Use the <filename> element for file
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and directory names.</para>
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</listitem>
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<listitem>
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<para>Use the <property> element for property names
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(e.g. GObject properties).</para>
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</listitem>
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<listitem>
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<para>Use the <type> element for GObject class
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names.</para>
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</listitem>
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<listitem>
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<para>Use the <constant> element for C defines.</para>
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</listitem>
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<listitem>
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<para>Use the <keycap> element for keys, where
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you are referring to what's actually printed on the key, e.g.
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<keycap>Shift</keycap>. If you're referring to the key some
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other way (e.g. "the Control key"), don't use
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<keycap>.</para>
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</listitem>
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<listitem>
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<para>Use the <function> element for functions;
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the style adopted is to give the function name followed by
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empty brackets, e.g. <function>clutter_actor_set_size()</function>.
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</para>
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</listitem>
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<listitem>
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<para>Use the <note> element for asides which might
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otherwise interrupt the flow of the recipe.</para>
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</listitem>
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<listitem>
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<para>To include a video in a recipe, do the following:</para>
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<itemizedlist>
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<listitem>
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<para>Make the video as short as is practical, and only include
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the relevant Clutter window(s).</para>
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</listitem>
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<listitem>
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<para>Use Ogg Theora for the encoding.</para>
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</listitem>
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<listitem>
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<para>Put the file into the
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<filename><clutter source>/doc/cookbook/videos</filename>
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directory. The name should be in the format
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<filename><section>-<recipe>-<identifier>.ogv</filename>.
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For example: <filename>animations-fading-fade-out.ogv</filename>.</para>
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</listitem>
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<listitem>
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<para>Add the name of the file to the <varname></varname>
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in the cookbook's <filename>Makefile.am</filename>, e.g.</para>
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<informalexample>
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<programlisting>
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<![CDATA[
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VIDEO_FILES = \
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videos/animations-fading-fade-out.ogv \
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$(NULL)
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]]>
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</programlisting>
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</informalexample>
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<para>This ensures it gets included in the distribution and
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installation.</para>
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</listitem>
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<listitem>
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<para>Use an <inlinemediaobject> to include it in the
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Docbook recipe file. It should look something like this:</para>
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<informalexample>
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<programlisting>
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<![CDATA[
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<inlinemediaobject>
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<videoobject>
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<videodata fileref="videos/animations-fading-in-then-out.ogv"/>
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</videoobject>
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<alt>
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<para>Video showing an actor fading in then out using
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<type>ClutterState</type></para>
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</alt>
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</inlinemediaobject>
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]]>
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</programlisting>
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</informalexample>
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<para>The <alt> tag provides the text which
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is presented as a link to the file for users whose browser
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doesn't support HTML 5 embedded video.</para>
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</listitem>
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</itemizedlist>
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</listitem>
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<listitem>
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<para>To include a full code sample in a recipe (which can
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be compiled into a runnable binary), do the following:</para>
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<itemizedlist>
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<listitem>
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<para>Create a C code file in the
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<filename><clutter source>/doc/cookbook/examples</filename>
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directory. It should be a standalone C application (with
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a <function>main()</function> etc.). The filename should be
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in the format
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<filename><section>-<recipe>.c</filename>; you
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can add an optional identifier to the end if you have more
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than one example for a recipe.</para>
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<para>If you want to load image files into the application
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(e.g. to demonstrate something with a texture), you can use
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the <constant>TESTS_DATA_DIR</constant> variable in your C
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code to reuse images in the Clutter <filename>tests</filename>
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directory; this will be replaced with
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<filename><clutter source>/tests/data</filename>
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during the build. For example:</para>
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<informalexample>
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<programlisting>
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<![CDATA[
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clutter_texture_set_from_file (CLUTTER_TEXTURE (texture),
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TESTS_DATA_DIR "/redhand.png",
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&error);
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]]>
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</programlisting>
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</informalexample>
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</listitem>
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<listitem>
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<para>Edit <filename>Makefile.am</filename>
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in the <filename>cookbook/examples</filename> directory
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so that the build recognises the new code; e.g. if
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your C source file were called
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<filename>fooing-barring.c</filename> you would do:</para>
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<informalexample>
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<programlisting>
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<![CDATA[
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noinst_PROGRAMS = \
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textures-reflection \
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text-shadow \
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animations-rotating \
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fooing-barring \
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$(NULL)
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fooing_barring_SOURCE = fooing-barring.c
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]]>
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</programlisting>
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</informalexample>
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<note>
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<para>Note the second line is a new one to tell the
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build where the source file is for your example.</para>
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</note>
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</listitem>
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<listitem>
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<para>Add a section at the end of your recipe which
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XIncludes the sample code, e.g.:</para>
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<informalexample>
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<programlisting>
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<![CDATA[
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<section>
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<title>Full example</title>
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<example id="fooing-barring-example">
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<title>Fooing with a bar</title>
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<programlisting>
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<xi:include href="examples/fooing-barring.c" parse="text">
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<xi:fallback>a code sample should be here... but isn't</xi:fallback>
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</xi:include>
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</programlisting>
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</example>
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</section>
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]]>
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</programlisting>
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</informalexample>
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</listitem>
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</itemizedlist>
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</listitem>
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</itemizedlist>
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</appendix>
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</book>
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