From 9837e374905a76b38ca6775f4fa71d81a7881a2b Mon Sep 17 00:00:00 2001
From: Alain Reguera Delgado <alain.reguera@gmail.com>
Date: May 23 2011 23:21:33 +0000
Subject: Update render_svg_getColors.sh.


---

diff --git a/Scripts/Functions/Render/render_svg_getColors.sh b/Scripts/Functions/Render/render_svg_getColors.sh
index 6bab04e..a40228b 100755
--- a/Scripts/Functions/Render/render_svg_getColors.sh
+++ b/Scripts/Functions/Render/render_svg_getColors.sh
@@ -1,8 +1,16 @@
 #!/bin/bash
 #
-# render_svg_getColors.sh -- This function takes one palette produced by
-# Gimp (e.g., syslinux.gpl) as input and outputs a list of colors as
-# specified.
+# render_svg_getColors.sh -- This function takes one palette produced
+# by Gimp (e.g., syslinux.gpl) as input and outputs a list of colors
+# in the specified format. In order for this function to output the
+# color in the format specified, it is needed that the fourth column
+# in the gpl palette be set in the `rrggbb' format and the appropriate
+# conversion be implemented here.
+#
+# Notice that using both the `--head' and `--tail' options it is
+# possible to control how many consecutive items does the list of
+# colors is going to have.  It is possible to output all colors in the
+# list, or a consecutive range of them.
 #
 # Copyright (C) 2009, 2010, 2011 The CentOS Project
 #
@@ -26,19 +34,120 @@
 
 function render_svg_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"
- 
+    # Define short options.
+    local ARGSS=''
+
+    # Define long options.
+    local ARGSL='head:,tail:,format:'
+    
+    # Initialize ARGUMENTS with an empty value and set it as local
+    # variable to this function scope.
+    local ARGUMENTS=''
+    
+    # Initialize both head and tail values to return the first line of
+    # color information from the palette.
+    local HEAD=1
+    local TAIL=1
+
+    # Initialize format value used as default when no format option be
+    # provided.
+    local FORMAT='rrggbb'
+
+    # Initialize list of colors.
+    local COLORS=''
+
+    # Redefine ARGUMENTS variable using current positional parameters.
+    cli_parseArgumentsReDef "$@"
+
+    # Redefine ARGUMENTS variable using getopt output.
+    cli_parseArguments
+
+    # Redefine positional parameters using ARGUMENTS variable.
+    eval set -- "$ARGUMENTS"
+
+    # Look for options passed through positional parameters.
+    while true;do
+
+        case "$1" in 
+
+            --head )
+                HEAD=$2
+                shift 2
+                ;;
+
+            --tail )
+                TAIL=$2
+                shift 2
+                ;;
+
+            --format )
+                FORMAT=$2
+                shift 2
+                ;;
+
+            -- )
+                shift 1
+                break
+                ;;
+        esac
+    done
+
+    # Define path to gpl palette. This is the first file we use to
+    # retrive color information from. Only the first file provided
+    # will be used.
+    local PALETTE=$(echo $@ | cut -d' ' -f1)
+
+    if [[ $PALETTE == '' ]];then
+
+        # Define palette path inside the theme's artistic motif.
+        local MOTIF_PALETTE=$(cli_getRepoTLDir)/Identity/Images/Themes/$(cli_getPathComponent $ACTIONVAL --motif)/Palettes/grub.gpl
+
+        # Define palette path inside the theme's design model.
+        local MODEL_PALETTE=$(cli_getRepoTLDir)/Identity/Models/Themes/${THEME_MODEL_NAME}/Palettes/grub.gpl
+
+        # Redefine default background color using palettes provided by
+        # artistic motif first, and design model later. Assuming none
+        # of them is present, use The CentOS Project default color
+        # then.
+        if [[ -f $MOTIF_PALETTE ]];then
+            COLORS=$(render_svg_getColors $MOTIF_PALETTE --head=1 --tail=1)
+        elif [[ -f $MODEL_PALETTE ]];then
+            COLORS=$(render_svg_getColors $MODEL_PALETTE --head=1 --tail=1)
+        else
+            COLORS='#204c8d'
+        fi
+
+    else
+
+        # Retrive the fourth column from GPL palette. The fourth
+        # column of a GPL palette contains the palette commentary
+        # field. The palette commentary field can be anything, but for
+        # the sake of our own convenience we use it to store the color
+        # value in hexadecimal format (e.g., rrggbb).  Notice that you
+        # can put your comments from the fifth column on using an
+        # space as field separator.
+        COLORS=$(sed -r '1,/^#/d' $PALETTE \
+            | awk '{ printf "%s\n", $4 }' | head -n $HEAD | tail -n $TAIL)
+
+    fi
+
+    # Implement color formats convertions from rrggbb to other formats
+    # that you might need to use.
+    for COLOR in $COLORS;do
+
+        case $FORMAT in
+
+            rrggbb|* )
+                if [[ ! $COLOR =~ '^#' ]];then
+                    COLOR="#${COLOR}"
+                fi
+                ;;
+
+        esac
+
+        # Output color value.
+        echo "$COLOR"
+
+    done
+
 }