|
 |
85c8b5 |
\documentclass{article}
|
|
|
85c8b5 |
\usepackage{longtable}
|
|
|
85c8b5 |
\usepackage[pdftex]{graphicx}
|
|
|
85c8b5 |
\usepackage{hyperref}
|
|
|
85c8b5 |
\hypersetup{pdfauthor={CentOS Documentation SIG},%
|
|
|
85c8b5 |
pdftitle={GNOME Backgrounds},%
|
|
|
85c8b5 |
pdfsubject={CentOS Corporate Visual Identity}%
|
|
|
85c8b5 |
}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\title{Backgrounds}
|
|
|
85c8b5 |
\author{CentOS Documentation SIG}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{document}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\maketitle
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{abstract}
|
|
|
85c8b5 |
This article describes GNOME and KDE background images. The first
|
|
|
85c8b5 |
time a user's session has been loaded, the default background image is
|
|
|
85c8b5 |
shown on the screen as desktop background. Background image remains
|
|
|
85c8b5 |
visible in the screen as long as the user's session remains open.
|
|
|
85c8b5 |
|
|
|
85c8b5 |
Copyright \copyright\ 2010\ The CentOS Project. Permission is
|
|
|
85c8b5 |
granted to copy, distribute and/or modify this document under the
|
|
|
85c8b5 |
terms of the GNU Free Documentation License, Version 1.2 or any later
|
|
|
85c8b5 |
version published by the Free Software Foundation; with no Invariant
|
|
|
85c8b5 |
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the
|
|
|
85c8b5 |
license is included in the section entitled ``GNU Free Documentation
|
|
|
85c8b5 |
License''.
|
|
|
85c8b5 |
\end{abstract}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\tableofcontents
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Workplace}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{itemize}
|
|
|
85c8b5 |
\item SVN:trunk/Identity/Themes/\$THEME/Distro/Backgrounds/
|
|
|
85c8b5 |
\end{itemize}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Theme}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\input{table-theme.tex}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Design}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
Background design is based on CentOS Default Artistic Motif.
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{itemize}
|
|
|
85c8b5 |
\item There is no color limitation in this section.
|
|
|
85c8b5 |
\item There is no translation in these images.
|
|
|
85c8b5 |
\item There is no version, or textual information in these images.
|
|
|
85c8b5 |
\end{itemize}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Rendering}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Configuration}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\input{table-config.tex}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{description}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\item[Default background]: The
|
|
|
85c8b5 |
\texttt{desktop\_gnome\_background.schemas} and \texttt{\%gconf-tree.xml}
|
|
|
85c8b5 |
files control which is the default background image loaded when new
|
|
|
85c8b5 |
users open their GNOME session for first time and as long as no change
|
|
|
85c8b5 |
be made in its ``Desktop Background Preferences''.
|
|
|
85c8b5 |
|
|
|
85c8b5 |
Inside \texttt{desktop\_gnome\_background.schemas} file the default
|
|
|
85c8b5 |
background image is defined in the line 6 of the following piece of
|
|
|
85c8b5 |
code:
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{verbatim}
|
|
|
85c8b5 |
...
|
|
|
85c8b5 |
1| <schema>
|
|
|
85c8b5 |
2| <key>/schemas/desktop/gnome/background/picture_filename</key>
|
|
|
85c8b5 |
3| <applyto>/desktop/gnome/background/picture_filename</applyto>
|
|
|
85c8b5 |
4| <owner>gnome</owner>
|
|
|
85c8b5 |
5| <type>string</type>
|
|
|
85c8b5 |
6| <default>/usr/share/backgrounds/images/default.png</default>
|
|
|
85c8b5 |
7| <locale name="C">
|
|
|
85c8b5 |
8| <short>Picture Filename</short>
|
|
|
85c8b5 |
9| <long>File to use for the background image</long>
|
|
|
85c8b5 |
10| </locale>
|
|
|
85c8b5 |
11|
|
|
|
85c8b5 |
...
|
|
|
85c8b5 |
\end{verbatim}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
Inside \texttt{\%gconf-tree.xml} file, the default background image is
|
|
|
85c8b5 |
defined in the line 4 of the following piece of code:
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{verbatim}
|
|
|
85c8b5 |
...
|
|
|
85c8b5 |
1| <entry name="picture_filename" mtime="1204075267" type="schema" stype="string" owner="gnome">
|
|
|
85c8b5 |
2| <local_schema locale="C" short_desc="Picture Filename">
|
|
|
85c8b5 |
3| <default type="string">
|
|
|
85c8b5 |
4| <stringvalue>/usr/share/backgrounds/images/default.png</stringvalue>
|
|
|
85c8b5 |
5| </default>
|
|
|
85c8b5 |
6| <longdesc>File to use for the background image</longdesc>
|
|
|
85c8b5 |
7| </local_schema>
|
|
|
85c8b5 |
8| </entry>
|
|
|
85c8b5 |
...
|
|
|
85c8b5 |
\end{verbatim}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
In both files \texttt{desktop\_gnome\_background.schemas} and
|
|
|
85c8b5 |
\texttt{\%gconf-tree.xml}, the image file name should be the same.
|
|
|
85c8b5 |
|
|
|
85c8b5 |
The \texttt{kdesktoprc} file controls KDE desktop configuration file.
|
|
|
85c8b5 |
The following lines were taken from that file and show the variables
|
|
|
85c8b5 |
that control default background on KDE desktop.
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{verbatim}
|
|
|
85c8b5 |
Wallpaper=/usr/share/backgrounds/images/default.png
|
|
|
85c8b5 |
WallpaperMode=Scaled
|
|
|
85c8b5 |
\end{verbatim}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\end{description}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Testing}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\section{Issues}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\begin{description}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\item[Image format definition]: Images controlling default desktop
|
|
|
85c8b5 |
backgrounds are in JPG format. Nevertheless this doesn't match with
|
|
|
85c8b5 |
the definition in the configuration file
|
|
|
85c8b5 |
\texttt{desktop-backgrounds-basic.xml} which mention them as PNG format.
|
|
|
85c8b5 |
This issue makes those images not to be displayed in the GNOME
|
|
|
85c8b5 |
``Desktop Background Preferences''.
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\end{description}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
% License section
|
|
|
85c8b5 |
\input{../../../../Licenses/GFDL.tex}
|
|
|
85c8b5 |
|
|
|
85c8b5 |
\end{document}
|