#!/bin/bash

#

# render_getColors.sh -- This function takes one palette produced by

# Gimp (e.g., syslinux.gpl) as input and outputs a list of colors as

# specified.

#

# Copyright (C) 2009-2011 Alain Reguera Delgado

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or (at

# your option) any later version.

#

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

# General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function render_getColors {

    # Define path to GPL palette. This is the .gpl file we use to

    # retrive color information from.

    local PALETTE_GPL="$1"

    # Retrive fourth column of information from GPL palette. The

    # fourth column of GPL palette contains the palette commentary

    # field. The palette commentary field can be anything, but for the

    # sake of our own convenience we use it to store the color

    # hexadecimal value.  Notice that you can put your comments from

    # the fifth column on.

    local COLORS=$(sed -r '1,/^#/d' $PALETTE_GPL | awk '{ printf "%s\n", $4 }')

    # Output list of colors. 

    echo "$COLORS"

}