puzzles: refactor and resync with upstream

This brings puzzles up-to-date with upstream revision
2d333750272c3967cfd5cd3677572cddeaad5932, though certain changes made
by me, including cursor-only Untangle and some compilation fixes
remain. Upstream code has been moved to its separate subdirectory and
future syncs can be done by simply copying over the new sources.

Change-Id: Ia6506ca5f78c3627165ea6791d38db414ace0804

1 files changed, 37 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/src/icons/crop.sh b/apps/plugins/puzzles/src/icons/crop.sh
new file mode 100755
index 0000000..0d15d3c
--- /dev/null
+++ b/apps/plugins/puzzles/src/icons/crop.sh
@@ -0,0 +1,37 @@
+#!/bin/sh 
+
+# Crop one image into another, after first checking that the source
+# image has the expected size in pixels.
+#
+# This is used in the Puzzles icon build scripts to construct icons
+# which are zoomed in on a particular sub-area of the puzzle's
+# basic screenshot. This way I can define crop areas in pixels,
+# while not having to worry too much that if I adjust the source
+# puzzle so as to alter the layout the crop area might start
+# hitting the wrong bit of picture. Most layout changes I can
+# conveniently imagine will also alter the overall image size, so
+# this script will give a build error and alert me to the fact that
+# I need to fiddle with the icon makefile.
+
+infile="$1"
+outfile="$2"
+insize="$3"
+crop="$4"
+
+# Special case: if no input size or crop parameter was specified at
+# all, we just copy the input to the output file.
+
+if test $# -lt 3; then
+  cp "$infile" "$outfile"
+  exit 0
+fi
+
+# Check the input image size.
+realsize=`identify -format %wx%h "$infile"`
+if test "x$insize" != "x$realsize"; then
+  echo "crop.sh: '$infile' has wrong initial size: $realsize != $insize" >&2
+  exit 1
+fi
+
+# And crop.
+convert -crop "$crop" "$infile" "$outfile"