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#!/bin/bash |
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cmd="$1" |
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shift |
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case "$cmd" in |
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preview) |
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pdfviewer="$1" |
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shift |
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;; |
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save) |
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if [ -z "$1" ]; then |
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echo 'Error: please specify output directory or file'; |
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exit 1; |
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fi |
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output="$1" |
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shift |
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;; |
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print|printpdf|printpng) |
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if [ -z "$1" ]; then |
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echo 'Error: please specify printer (check lpstat -v) or use "+" as printername to select one.'; |
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exit 1; |
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fi |
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printer="$1" |
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if [ "$printer" == '+' ]; then |
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select printer in $(lpstat -a | cut -f 1 -d ' '); do break; done |
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fi |
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shift |
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;; |
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cattex) |
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;; |
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*) |
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cat<<ENDHELP |
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Usage: |
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$0 preview pdfviewer barcode_options... |
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$0 save outputdirectory|outputfile barcode_options... # detects extension |
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$0 print printername barcode_options... |
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$0 print + barcode_options... # use + instad of printername to select printer from menu |
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$0 cattex barcode_options... #this one outputs generated tex |
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barcode_options: 'Barcode Data' [psbarcode_options [barcodetype [document_options]]] |
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* "Barcode Data" - string with data to encode |
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* "psbarcode_options" - for defaults can be empty string '', for none space ' '. Look for custom options at http://www.ctan.org/pkg/pst-barcode depending on barcode. For example for code128 'includecheck includetext' are typical, for 'qrcode' can be for example 'eclevel=L width=1.15 height=1.15' |
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* "barcodetype" - few examples: code128, ean13, datamatrix, qrcode, interleaved2of5,... more in http://www.ctan.org/pkg/pst-barcode |
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* "document_options" - of documentclass |
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* http://ctan.org/pkg/standalone . Example usefull 'border={left bottom right top}' or sometimes 'preview' helps. |
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Example using all barcode_options: |
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$0 save . 'https://goo.gl/QCqrOj' 'includetext' qrcode 'border={10 20 30 40}' |
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Example omiting "psbarcode_options" by supplying them sapce, but |
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specifying barcodetype: |
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$0 save . 'DataMatrixExample' '' 'datamatrix' |
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ENDHELP |
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exit 0 |
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;; |
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esac |
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data="${1:-Example}" |
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params="${2:-includecheck includetext}" |
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barcodetype="${3:-code128}" |
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standalone_opts="${4:-border={4pt 0pt 4pt 0pt\} %}" # % border={ left bottom right top } |
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tmpdir="$(mktemp -d --suffix=gen_barcode)" |
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function clean_up { |
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# Perform program exit housekeeping |
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rm "$tmpdir"/* |
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rmdir "$tmpdir" |
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exit |
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} |
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trap clean_up SIGHUP SIGINT SIGQUIT SIGTERM SIGKILL |
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data="$( echo "${data}" | sed 's:\\:\\\\:g;s:#:\\#:g;s:\$:\\$:g;s:%:\\%:g;s:{:\\{:g;s:}:\\}:g' )" |
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bname=barcode_"$(echo "${data}" | tr -c -d '[:alnum:]' )"_"$(echo "$barcodetype" | tr -c -d '[:alnum:]' )"_"$(date --iso-8601=seconds)" |
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cat >"$tmpdir"/"$bname".tex <<ENDTEX |
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\documentclass[% |
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${standalone_opts} |
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]{standalone} % http://ctan.org/pkg/standalone |
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\usepackage{pst-barcode} % http://www.ctan.org/pkg/pst-barcode |
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\usepackage{auto-pst-pdf} % pdflatex require -shell-escape option!!! |
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% Usage: pdflatex -shell-escape standalone_code128_special_chars.tex |
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\begin{document} |
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\begin{pspicture}%{44.5mm,17.5mm} |
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\psbarcode{\detokenize{${data}}}{${params}}{${barcodetype}} |
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\end{pspicture} |
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\end{document} |
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ENDTEX |
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if [ "$cmd" == "cattex" ]; then |
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cat "$tmpdir"/"$bname".tex |
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else |
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# pushd+popd because `-output-directory` did not play well |
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# with /psbarcode function. |
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pushd . |
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cd "$tmpdir" |
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pdflatex -shell-escape "$bname".tex |
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popd |
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fi |
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# When being pedantic and running on strong computer you might |
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# consider 600x600 resolution. As pdf->png convertion is it's 4 timers |
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# faster with 300x300 resolution (what matters in case I run this |
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# script on ARM devices) it's absolutetly enought from my practice. |
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# However if you are pedantic and have time/memory resources, go ahead |
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# and increase :). |
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function pdf2png(){ |
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#/usr/bin/time convert -density 300x300 -background white -alpha remove -flatten -alpha off "$@" |
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density=300 |
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convert -density "$density"x"$density" -background white -alpha remove -flatten -alpha off "$1" "$2" |
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# try to determine if accidentally it is not too small. |
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# It sometimes happens when used play with options and for example |
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# specify type `datamatrix` with small amount of data and does not |
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# specify dimensions. |
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# If it's too small, let's try to increase resolution. |
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imgwidth="$(identify "$2" | sed 's:.*PNG \([0-9]*\)x.*:\1:g')" |
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imgheight="$(identify "$2" | sed 's:.*PNG [0-9]*x\([0-9]*\).*:\1:g')" |
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while [ "$imgwidth" -lt 800 -a "$imgheight" -lt 800 ]; do |
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(( density *= 2 )) # double resolution until dimensions are below 800px |
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convert -density "$density"x"$density" -background white -alpha remove -flatten -alpha off "$1" "$2" |
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imgwidth="$(identify "$2" | sed 's:.*PNG \([0-9]*\)x.*:\1:g')" |
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imgheight="$(identify "$2" | sed 's:.*PNG [0-9]*x\([0-9]*\).*:\1:g')" |
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done |
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} |
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case "$cmd" in |
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preview) |
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$pdfviewer "$tmpdir"/"$bname".pdf |
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;; |
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save) |
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if [ -d "$output" ]; then |
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pdf2png "$tmpdir"/"$bname".{pdf,png} |
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cp -v "$tmpdir"/"$bname".{pdf,png,tex} "$output" |
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elif [[ $output =~ \.pdf ]]; then |
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cp -v "$tmpdir"/"$bname".pdf "$output" |
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elif [[ $output =~ \.png ]]; then |
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pdf2png "$tmpdir"/"$bname".{pdf,png} |
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cp -v "$tmpdir"/"$bname".png "$output" |
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else |
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echo 'Error: output was not directory, not filename with pdf or png extension' |
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exit 1 |
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fi |
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;; |
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print|printpdf|printpng) |
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# Printing of this type of labels *usually* works better with .png on Dymo 450 LabelWriter to me |
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if [ "$cmd" != "printpdf" ]; then |
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pdf2png "$tmpdir"/"$bname".{pdf,png} |
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printfile="$tmpdir"/"$bname".png |
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else |
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printfile="$tmpdir"/"$bname".pdf |
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fi |
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#display "$tmpdir"/"$bname".png |
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# When Dymo 450 LabelWriter is shared via network (ipp/ipps) then |
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# printing only works with `-o raw` option. |
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# Let's determine if we deal with locally connected dymo via |
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# USB - by checking if lpstat -v $printer contains |
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# "usb://DYMO/" substring. In case of match let's assume that |
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# it's locally connected printer and omit `-o raw` parameter, |
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# otherwise use it by default. |
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printer_dev_spec="$(lpstat -v "$printer")" |
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if [[ "$printer_dev_spec" =~ 'usb://DYMO/' ]]; then |
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set -x |
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lpr -P "$printer" -o scaling=100 "$printfile" |
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set +x |
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else |
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set -x |
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lpr -P "$printer" -o raw -o scaling=100 "$printfile" |
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set +x |
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fi |
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;; |
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esac |
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clean_up |
