#!/bin/bash
#===========================================================================
# Copyright ©Oct2012 - Copyright J. S. Gilstrap - johng@mylinuxisp.com
#
# 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; version 2 of the License.
#
# 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, see .
#
# Any knowledge gained by viewing and/or using this software may NOT be used
# to file for any 'submarine' patents on applicable algorithmns and/or ideas
# or any other method that would undermine the free use and/or distribution
# thereof. By viewing and/or using this software you agree to these terms.
# If you cannot agree to this then do NOT view and/or use this software.
#
# :set syntax=sh
BashVer=`bash --version | grep "^GNU.*bash.*version"` ; BashVer=${BashVer#*version }
# Check bash version.
if [ ${BashVer%%.*} -lt 4 ]
then
echo "This script requires bash version 4 or greater."
exit 1
fi
Version=3.4.2
# Check for QR Encode.
if ! which qrencode > /dev/null 2>&1
then
echo "Can't find 'qrencode' . Quitting."
exit 1
else
QRver=`qrencode -V 2>&1 | grep 'qrencode version'`
if [ "${QRver#*version }" != $Version ]
then
echo "'mkqr' is written for version $Version of qrencode. Quitting."
exit 1
fi
fi
# Check for get_string function.
if which get_string > /dev/null 2>&1
then
. get_string
MAXLNTH=32
else
echo "Can't find 'get_string' function. Quitting."
exit 1
fi
# Check for zenity (version)
if ! which zenity > /dev/null 2>&1
then
echo "Can't find 'zenity'"
echo "You will not be able to use visual color selection, file open dialog and text-info."
zver=0
sleep 1.5
else
zVer=$(zenity --version) ; zver=${zVer%.*} ; M=${zver%.*} ; m=${zver#*.}
if [ "$M" -eq 2 -a "$m" -lt 32 ]
then
echo "Visual color selection using zenity $zVer will not be available."
zver=1
sleep 1.5
else
zver=2
fi
fi
# Clear and set variables.
unset InPutFile OutPutFile ModSize ErrCor SymVer Margin DPI Type Struct Kangi Lwr8Bit Ignore Eight Micro
FGcolor=#000000 ; BGcolor=#FFFFFF
[ -n "$1" ] && { inFile="$1" ; OutPutFile=${1%.*} ; }
### Define functions.
# PreRUles
pRule()
{
[ -z "$GTlnth" ] && GTlnth=1
if [ $LENGTH -gt $GTlnth ]
then
printf "[1mString longer than $GTlnth character(s). Trimming to length.\n[0m"
STRING=${STRING:0:${GTlnth}}
LENGTH=$GTlnth
fi
}
# Ask If OK.
isOK()
{
[ -z "$YN" ] && YN=y
printf "\nIs this OK? [y|Y|n|N] <${YN}> : "
read yn ; yn=${yn,,} ; yn=${yn:0:1}
if [ -n "$yn" ]
then
if [ $yn = y ]
then
break 1
else
YN=$yn
fi
else
[ $YN = y ] && break 1
fi
}
# Select Output Type.
outputType()
{
printf "\n\tSelect output type\n\n"
select T in PNG EPS SVG ANSI ANSI256 ASCII ASCIIi UTF8 ANSIUTF8
do
Type=$T
Ext=${T,,}
break 1
done
}
# Change Color.
chColor()
{
local clr color
eval color=\$$1
clr=`zenity --title="$2" --color-selection --show-palette --color="$color"`
clr=${clr^^} ; clr=${clr:0:3}${clr:5:2}${clr:9:2}
eval $1=$clr
}
# Gather input.
while :
do
printf "\n\t\t[1mQR Encode UI Wrapper[0m\n\n"
preRules=pRule
# Numbered input.
MATCH="[0-9]" ; ERR_MSG="Use Numbers Only."
REQUIRED=N ; VALIDATE=Y
PROMPT="Module size" ; GTlnth=2
[ -z "$ModSize" ] && ModSize=3
getString ModSize
PROMPT="Set margin width" ; GTlnth=1
[ -z "$Margin" ] && Margin=4
getString Margin
PROMPT="Error corection [l|m|q|h]"
ERR_MSG="Use l, L, m, M, q, Q, h, or H Only."
[ -z "$ErrCor" ] && ErrCor=L ; MATCH="[lLmMqQhH]"
getString ErrCor ; ErrCor=${ErrCor^^}
# Yes/No Input.
printf "\n\tYes/No input [y|n]\n\n"
MATCH="[YyNn]" ; ERR_MSG="Use y, Y, n, or N Only."
PROMPT="Make structured symbols"
[ -z "$Struct" ] && Struct=n
getString Struct ; Struct=${Struct,,}
PROMPT="Full 8 bit mode"
[ -z "$Eight" ] && Eight=n
getString Eight ; Eight=${Eight,,}
# Options not used in full 8 bit mode.
case $Eight in
n)
PROMPT="Assume kangi input (shift-jis)"
[ -z "$Kangi" ] && Kangi=n
getString Kangi ; Kangi="${Kangi,,}"
PROMPT="Encode 8-bit lower-case alpha"
[ -z "$Lwr8Bit" ] && Lwr8Bit=n
getString Lwr8Bit ; Lwr8Bit="${Lwr8Bit,,}"
PROMPT="Convert all alpha to upper-case"
[ -z "$Ignore" ] && Ignore=n
getString Ignore ; Ignore="${Ignore,,}"
;;
*) unset Kangi Lwr8Bit Ignore
esac
PROMPT="Encode in a Micro QR code"
VALIDATE=Y ; [ -z "$Micro" ] && Micro=n
getString Micro ; Micro="${Micro,,}"
unset preRules
echo
PROMPT="Symbol version number (1 to 40)"
MATCH="[0-9A]" ; ERR_MSG="Use Numbers Only."
[ -z "$SymVer" ] && SymVer=A
[ $Struct = y -o $Micro = y ] && REQUIRED=Y
[ $Struct = y -a $SymVer = A ] && unset SymVer
getString SymVer
if [ "$SymVer" != A ]
then
if [ $Micro = y ]
then
[ $SymVer -gt 4 ] && SymVer=4
else
[ $SymVer -gt 40 ] && SymVer=40
fi
fi
PROMPT="Set DPI of generated image"
MATCH="[0-9]" ; REQUIRED=N ; [ -z "$DPI" ] && DPI=72
getString DPI
unset MATCH ERR_MSG
PROMPT="Output File"
REQUIRED=Y ; VALIDATE=N
getString OutPutFile
# Set output type
if [ -z "$Type" ]
then
outputType
else
[ -z "$chTyp" ] && chTyp=n
printf "\nChange output type? [Y|y|N|n] <${chTyp}> : "
read chtyp
if [ -n "$chtyp" ]
then
chtyp=${chtyp,,} ; chTyp=${chtyp:0:1}
fi
[ "$chTyp" = y ] && outputType
fi
# Set Colors.
if [ "$zver" -eq 2 ] && [ "$Type" = PNG -o "$Type" = SVG ]
then
printf "\nForeground Color : $FGcolor Background Color : $BGcolor\n"
[ -z "$chClr" ] && chClr=n
printf "Change colors? [Y|y|N|n] <${chClr}> : "
read chclr
if [ -n "$chclr" ]
then
chclr=${chclr,,} ; chClr=${chclr:0:1}
fi
if [ "$chClr" = y ]
then
chColor FGcolor 'Foreground Color'
chColor BGcolor 'Background Color'
fi
fi
clear
cat< : "
read yn ; yn=${yn,,} ; yn=${yn:0:1} ; [ -n "$yn" ] && YN=$yn
if [ $YN = y ]
then
while :
do
while [ -z "$InPutFile" ]
do
if [ "$zver" -ge 1 ]
then
InPutFile=`zenity --file-selection --title='QR Content Input File' --filename=${PWD}/${inFile}`
else
printf "Enter path to text input file : "
read InPutFile
fi
done
if [ -r "$InPutFile" -a -s "$InPutFile" ]
then
Content=`cat "$InPutFile"`
clear ; printf "\n${Content//%/%%}\n\n"
isOK
unset InPutFile
else
printf "File is not readable by user or is empty. Quit? [q] : "
read Q ; [ "$Q" = q ] && exit 1
unset InPutFile
fi
done
else
while :
do
printf "Enter QR content. End with Ctrl-D\n\n"
Content=`cat`
clear ; printf "\n${Content//%/%%}\n\n"
isOK
done
fi
# Prepend the proper switches.
for VAR in OutPutFile ModSize ErrCor SymVer Margin DPI Type Struct Kangi Lwr8Bit Ignore Eight Micro FGcolor BGcolor
do
unset sw
eval var=\$$VAR
case $var in n) unset var ;; esac
if [ -n "$var" ]
then
case $VAR in
OutPutFile) sw='-o ' ;;
ModSize) sw='-s ' ;;
ErrCor) sw='-l ' ;;
SymVer) sw='-v ' ;;
Margin) sw='-m ' ;;
DPI) sw='-d ' ;;
Type) sw='-t ' ;;
Struct) sw='-S ' ;;
Kangi) sw='-k ' ;;
Lwr8Bit) sw='-c ' ;;
Ignore) sw='-i ' ;;
Eight) sw='-8 ' ;;
Micro) sw='-M ' ;;
FGcolor) sw='--foreground=' ; var=${var:1:6} ;;
BGcolor) sw='--background=' ; var=${var:1:6} ;;
esac
case $VAR in Struct|Kangi|Lwr8Bit|Ignore|Eight|Micro) unset var ;; esac
eval $VAR=\"$sw$var\"
else
unset $VAR
fi
done
# Run qrencode.
OutPutFile="${OutPutFile}.${Ext}"
qrencode $OutPutFile $ModSize $ErrCor $SymVer \
$Margin $DPI $Type $Struct $Kangi $Lwr8Bit \
$Ignore $Eight $Micro $FGcolor $BGcolor "${Content}"
if [ $? -eq 0 ]
then
echo "Output File : ${OutPutFile#-o }"
else
printf "[1m E R R O R ! [0m\n"
fi
# Display QR Code.
if which display > /dev/null 2>&1
then
printf "Display QR Code ? [y|Y] : "
read disp
case $disp in y|Y) display ${OutPutFile/-o } ;; esac
fi