resources/bitmaps/keyboard/export.sh

   1 #! /bin/bash
   2 # Export several areas in keyboard.svg to optimized PNG.
   3 # Dependencies: Inkscape, pngcrush.
   4
   5 # IDs of target area rectangles in keyboard.svg:
   6 IDs="
   7 white_bright_normal
   8 white_bright_hover
   9 white_bright_on_red
  10 white_bright_on_orange
  11 white_bright_on_green
  12 white_bright_on_blue
  13 white_dark_normal
  14 white_dark_hover
  15 white_dark_on_red
  16 white_dark_on_orange
  17 white_dark_on_green
  18 white_dark_on_blue
  19 black_normal
  20 black_hover
  21 black_on_red
  22 black_on_orange
  23 black_on_green
  24 black_on_blue
  25 "
  26
  27 # Export images:
  28 for ID in $IDs; do
  29   inkscape keyboard.svg --export-id=$ID --export-png=$ID.png
  30 done
  31
  32 # Optimize opaque images and remove their alpha channels.
  33 # pngcrush will not overwrite input files, so use a temp dir
  34 # and move/overwrite files afterwards.
  35 # pngcrush creates the dir given for -d, if necessary.
  36 pngcrush -c 2 -reduce -d crushed white_*.png
  37
  38 # Optimize transparent images, keeping their alpha channels:
  39 pngcrush -c 6 -reduce -d crushed black_*.png
  40
  41 # Cleanup:
  42 mv crushed/*.png .
  43 rmdir crushed