Stop the analysis pass in Loopy's redraw routine from being
[sgt/puzzles] / icons / crop.sh
CommitLineData
e0433c68 1#!/bin/sh
2
3# Crop one image into another, after first checking that the source
4# image has the expected size in pixels.
5#
6# This is used in the Puzzles icon build scripts to construct icons
7# which are zoomed in on a particular sub-area of the puzzle's
8# basic screenshot. This way I can define crop areas in pixels,
9# while not having to worry too much that if I adjust the source
10# puzzle so as to alter the layout the crop area might start
11# hitting the wrong bit of picture. Most layout changes I can
12# conveniently imagine will also alter the overall image size, so
13# this script will give a build error and alert me to the fact that
14# I need to fiddle with the icon makefile.
15
16infile="$1"
17outfile="$2"
18insize="$3"
19crop="$4"
20
21# Special case: if no input size or crop parameter was specified at
22# all, we just copy the input to the output file.
23
24if test $# -lt 3; then
25 cp "$infile" "$outfile"
26 exit 0
27fi
28
29# Check the input image size.
30realsize=`identify -format %wx%h "$infile"`
31if test "x$insize" != "x$realsize"; then
32 echo "crop.sh: '$infile' has wrong initial size: $realsize != $insize" >&2
33 exit 1
34fi
35
36# And crop.
37convert -crop "$crop" "$infile" "$outfile"