Add appdata file

Applications wishing to have long descriptions, screenshots and other useful things
are required to ship one or more files in /usr/share/appdata/%{id}.appdata.xml.
see pttp://people.freedesktop.org/~hughsient/appdata/

synfig-studio/Makefile.am

@@ -46,6 +46,7 @@ EXTRA_DIST = \
 	m4/ETL.m4 \
 	ChangeLog.old \
 	synfigstudio.desktop.in \
+	synfigstudio.appdata.xml.in \
 	synfigstudio.xml.in \
 	synfigstudio-thumbnailer.schemas.in
 
@@ -61,6 +62,14 @@ desktop_DATA = synfigstudio.desktop
 mimeinfodir              = $(prefix)/share/mime-info
 mimeinfo_DATA            = synfigstudio.keys synfigstudio.mime
 
+# Appdata
+@INTLTOOL_XML_RULE@
+appdata_in_files = synfigstudio.appdata.xml.in
+app_data_files = $(app_data_in_files:.xml.in=.xml)
+
+appdatadir = $(datadir)/appdata
+appdata_DATA = $(app_data_files)
+
 # Icon
 icondir                 = $(datadir)/pixmaps
 icon_DATA               = images/synfig_icon.png images/sif_icon.png

synfig-studio/configure.ac

@@ -292,6 +292,7 @@ po/Makefile.in
 synfigstudio.mime
 synfigstudio.keys
 synfigstudio.xml
+synfigstudio.appdata.xml
 synfigstudio-thumbnailer.schemas
 src/Makefile
 src/gui/Makefile

synfig-studio/po/POTFILES.in

@@ -1,4 +1,5 @@
 synfigstudio.desktop.in
+synfigstudio.appdata.xml.in
 synfigstudio-thumbnailer.schemas.in
 synfigstudio.keys.in
 plugins/add-skeleton-simple/plugin.xml.in

synfig-studio/synfigstudio.appdata.xml.in

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- Copyright 2013 Yu Chen <jcomee@gmail.com> -->
+<application>
+ <id type="desktop">synfigstudio.desktop</id>
+ <licence>CC0</licence>
+ <description>
+  <_p>
+   Synfig Studio is a free and open-source 2D animation software, designed as powerful industrial-strength solution for creating film-quality animation using a vector and bitmap artwork. It eliminates the need to create animation frame-by frame, allowing you to produce 2D animation of a higher quality with fewer people and resources. 
+  </_p>
+  <_p>Features:</_p>
+  <ul>
+   <_li>Spatial resolution-independence</_li>
+   <_li>Temporal resolution independence</_li>
+   <_li>High Dynamic-Range Imaging (HDRI)</_li>
+   <_li>Pentablet-friendly tools</_li>
+   <_li>Artist-oriented design</_li>
+   <_li>Path-based Gradients</_li>
+   <_li>Multitude of layers of various types</_li>
+  </ul>
+ </description>
+ <screenshots>
+  <screenshot type="default" width="800" height="600">http://synfig.org/gallary/screenshots/interface.png</screenshot>
+  <screenshot width="800" height="600">http://synfig.org/gallary/screenshots/interface-2.png</screenshot>
+ </screenshots>
+ <url type="homepage">http://www.synfig.org</url>
+ <updatecontact>synfig-devl@lists.sourceforge.net</updatecontact>
+</application>