From 41e9a60660775725a3f2792842ee0c046f6eb0ff Mon Sep 17 00:00:00 2001
From: alban <git@albancrommer.com>
Date: Thu, 14 Nov 2019 09:21:00 +0100
Subject: [PATCH] [enh] adds page generator

---
 page_generator.sh | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100755 page_generator.sh

diff --git a/page_generator.sh b/page_generator.sh
new file mode 100755
index 0000000..113b6cf
--- /dev/null
+++ b/page_generator.sh
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+IMG=$1
+COUNT_HORIZONTAL=$2
+COUNT_VERTICAL=$3
+LANDSCAPE=${4}
+
+panic(){ echo $@; exit 2; }
+
+[[ ! -f $IMG ]] && panic "$IMG does not exist"
+
+SMALL_SIDE=4000
+LARGE_SIDE=5800
+
+# /tmp/out.pdf PDF 567x822 567x822+0+0 16-bit sRGB 980KB 0.010u 0:00.009
+read name type GEOMETRY canvas depth format size other <<< $( identify $IMG )
+IMG_WIDTH=$( cut -d "x" -f 1 <<< $GEOMETRY )
+IMG_HEIGHT=$( cut -d "x" -f 2 <<< $GEOMETRY )
+
+TOTAL_WIDTH=$( [[ -n "$LANDSCAPE" ]] && echo $LARGE_SIDE || echo $SMALL_SIDE )
+TOTAL_HEIGHT=$( [[ -n "$LANDSCAPE" ]] && echo $SMALL_SIDE || echo $LARGE_SIDE )
+
+REQ_WIDTH=$(( $TOTAL_WIDTH / $COUNT_HORIZONTAL  ))
+REQ_HEIGHT=$(( $TOTAL_HEIGHT / $COUNT_VERTICAL  ))
+
+DUP=$(( ( $COUNT_HORIZONTAL * $COUNT_VERTICAL ) - 1 ))
+
+DATE=$( date +%s )
+OUTPUT_DIR=/tmp
+FILENAME=$( basename $IMG ) 
+PDF_NAME=${OUTPUT_DIR}/${DATE}_${FILENAME}.pdf
+OUT=$( montage -tile ${COUNT_HORIZONTAL}x${COUNT_VERTICAL} -density 200x200 -units pixelspercentimeter -border 0 -page ${TOTAL_WIDTH}x${TOTAL_HEIGHT} "$IMG" -geometry ${REQ_WIDTH}x${REQ_HEIGHT} -duplicate ${DUP},0 ${PDF_NAME} )
+
+[ 0 -eq $? ] && echo $PDF_NAME || panic "An error occured... $OUT"