scripts/generate-sprites

   1 #!/bin/sh
   2 # vim: expandtab sw=4 ts=4 sts=4:
   3
   4 # Do not run as CGI
   5 if [ -n "$GATEWAY_INTERFACE" ] ; then
   6     echo 'Can not invoke as CGI!'
   7     exit 1
   8 fi
   9
  10 # Check for proper number of command line args.
  11 if [ $# -ne 1 ]; then
  12   echo "Usage: `basename $0` {path_to_pma_root_folder}"
  13   exit 65
  14 fi
  15
  16 # Check if we have ImageMagick
  17 hash identify 2>&- ||  {
  18   echo "ERROR: ImageMagick not found on the system!"
  19   echo "Quitting..."
  20   exit 1
  21 }
  22
  23 # Compress image, if possible
  24 HAVE_PNGCRUSH=1
  25 hash pngcrush 2>&- || {
  26   HAVE_PNGCRUSH=0
  27   echo "WARNING: 'pngcrush' not found, will not be able to compress the sprites"
  28 }
  29
  30 # Icons that should not be included in the sprite
  31 BLACKLIST="vertical_line.png spacer.png"
  32
  33 # Output filename for the sprite image
  34 OUTPUT="sprites.png"
  35
  36 # Library file that will contain the information about
  37 # individual images that are part of the sprite
  38 LIBRARY="../sprites.lib.php"
  39
  40 if [ -d $1/themes ]; then
  41   cd $1/themes
  42
  43   # For each theme
  44   for d in $(ls -d */); do
  45     # Go to folder that contains the images
  46     cd "$d"img
  47     echo "Processing folder: $PWD"
  48     FILES=''
  49     for f in $(ls *.png| LC_ALL=C sort); do
  50       VALID=true
  51       # Do not include blacklisted icons
  52       for b in $BLACKLIST; do
  53         if [ "$b" = "$f" ]; then
  54           VALID=false
  55         fi
  56       done
  57       if [ $VALID = false ]; then
  58         continue
  59       fi
  60       DATA=$(identify -ping $f || echo "NULL")
  61       if [ "$DATA" != "NULL" ]; then
  62         SIZE=$(echo $DATA | cut -d ' '  -f 3 | sed 's/x/ /')
  63         # Do not include icons that are larger than 16x16
  64         for s in $SIZE; do
  65           if [ $s -gt 16 ]; then
  66             VALID=false
  67           fi
  68         done
  69         if [ $VALID = true ]; then
  70           # Build the list of valid icons
  71           FILES="$FILES $f"
  72         fi
  73       fi
  74     done
  75
  76     # Create an empty sprite of the correct size
  77     NUM_FILES=''
  78     for f in $FILES; do
  79       NUM_FILES=$(($NUM_FILES+1))
  80     done
  81     convert -size 16x$(($NUM_FILES*16+16)) xc:none temp.png
  82
  83     # Add each icon to the sprite
  84     CURRENT=1
  85     for f in $FILES; do
  86       convert temp.png $f -geometry +0+$(($CURRENT*16)) -composite temp.png
  87       CURRENT=$(($CURRENT+1))
  88     done
  89
  90     # Compress image, if possible
  91     if [ $HAVE_PNGCRUSH -eq 1 ]; then
  92       echo "Compressing file: $PWD/$OUTPUT"
  93       pngcrush -brute temp.png $OUTPUT > /dev/null
  94       rm -f temp.png
  95     else
  96       mv temp.png $OUTPUT
  97     fi
  98
  99     # Generate the library file that contains the information
 100     # about individual images that are part of the sprite
 101     echo '<?php' > $LIBRARY
 102     echo '/**' >> $LIBRARY
 103     echo ' * AUTOGENERATED CONTENT - DO NOT EDIT!' >> $LIBRARY
 104     echo ' * ALL CHANGES WILL BE UNDONE!' >> $LIBRARY
 105     echo ' * RUN `./scripts/generate-sprites` TO UPDATE THIS FILE' >> $LIBRARY
 106     echo ' *'  >> $LIBRARY
 107     echo ' * @package PhpMyAdmin-theme' >> $LIBRARY
 108     echo ' */'  >> $LIBRARY
 109     echo '' >> $LIBRARY
 110     echo '/**' >> $LIBRARY
 111     echo ' * Map of sprites inside sprite.png'  >> $LIBRARY
 112     echo ' */'  >> $LIBRARY
 113     echo "\$sprites = array(" >> $LIBRARY
 114     CURRENT=1
 115     for f in $FILES; do
 116       # Add a CSS rule for each icon in the sprite
 117       NAME=$(echo "'$f'" | sed 's/\.png//')
 118
 119       DATA=$(identify -ping $f || echo "NULL")
 120       if [ "$DATA" != "NULL" ]; then
 121         SIZE=$(echo $DATA | cut -d ' '  -f 3 | sed 's/x/ /')
 122         WIDTH=0
 123         HEIGHT=0
 124         for s in $SIZE; do
 125           if [ $WIDTH = 0 ]; then
 126             WIDTH=$s
 127           else
 128             HEIGHT=$s
 129           fi
 130         done
 131       fi
 132       echo "    $NAME => array("               >> $LIBRARY
 133       echo "        'position' => '$CURRENT'," >> $LIBRARY
 134       echo "        'width'    => '$WIDTH',"   >> $LIBRARY
 135       echo "        'height'   => '$HEIGHT'"   >> $LIBRARY
 136       echo "    ),"                            >> $LIBRARY
 137       CURRENT=$(($CURRENT+1))
 138     done
 139     echo ");" >> $LIBRARY
 140
 141     # Back to the parent folder
 142     cd ../..
 143   done
 144   exit 0
 145 else
 146   echo "ERROR: could not find the 'themes' folder in '`readlink -f $1`'"
 147   exit 1
 148 fi