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@node Trunk Identity Brushes
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@section @file{trunk/Identity/Brushes}
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@cindex Trunk identity brushes
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The @file{trunk/Identity/Brushes} directory exists to organize GIMP
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brushes used inside @value{TCPCVI}.
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A brush is a pixmap or set of pixmaps used for painting through an
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image manipulation program like GIMP. Inside the repository, we've
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organized brushes in @emph{common brushes} and @emph{theme-specific
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brushes}. In both cases, brushes are initially created in @file{.xcf}
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format and later exported to any of the brush formats recognized by
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GIMP (e.g., @file{.gbr} or @file{.gih}) using the same name of its
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source file.
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In order for brushes to be loaded by GIMP, they must be store
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@file{~/.gimp-2.2/brushes} directory. This location is out of
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@value{TCAR} and doesn't provide version control by itself. To be able
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of using version controlled brushes inside GIMP, we store brush
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related files inside @file{trunk/Identity/Brushes} directory and
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create links to them from @file{~/.gimp-2.2/brushes} directory.
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@verbatim
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trunk/Identity/Brushes
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|-- Corporate
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| `-- symbol.gbr (file) <-- ~/.gimp-2.2/brushes/corporate-symbol.gbr (link)
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|-- TreeFlower
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| |-- flower-1.gbr (file) <-- ~/.gimp-2.2/brushes/treeflower-flower-1.gbr (link)
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| |-- branch-1.gbr (file) <-- ~/.gimp-2.2/brushes/treeflower-branch-1.gbr (link)
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| |-- branch-2.gbr (file) <-- ~/.gimp-2.2/brushes/treeflower-branch-2.gbr (link)
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| `-- trunk-1.gbr (file) <-- ~/.gimp-2.2/brushes/treeflower-trunk-1.gbr (link)
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`-- Others
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`-- ...
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@end verbatim
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The entire link preparation and maintainance of brushes inside the
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working copy is automated by @code{prepare} functionality of
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@command{centos-art.sh} script.
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Inside the working copy, brushes might be created individually in
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different locations, but they all need to be linked from one unique
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location (i.e., @file{~/.gimp-2.2/brushes}). This configuration may
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provoke brush overlapping if a consistent name convenction is not
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implemented correctly. In that sake, file names used for brushes
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are combined with the directories they are stored in order to build
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unique identifiers.
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Brushes produced with GIMP has a description field associated that is
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shown in the Brushes panel of GIMP. This description is set when the
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brush is created as @file{.xcf} file and can be updated when it is
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exported either to @file{.gbr} or @file{.gih} format. It wouldn't be
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too useful to have two or more brushes using the same description so,
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we also make description of brush files unique, too. In that sake, use
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the file name as description but without including the file extension
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(e.g., if we have the @file{centos-flame-3.gbr} brush, its description
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would be @code{centos-flame-3}).
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More information about GIMP brushes can be found in
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@url{file:///usr/share/gimp/2.0/help/en/index.html,The Gimp Manual},
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specifically in the section related to
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@url{file:///usr/share/gimp/2.0/help/en/gimp-concepts-brushes.html,
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Brushes}.
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