# Build presentation
#
#  Copyright (C) 2019 Mike Gerwitz
#
#  This program is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 3 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see <http://www.gnu.org/licenses/>.


default: slides.pdf

xcfs = $(wildcard images/*.xcf)
pngs = $(xcfs:.xcf=.png)

.PRECIOUS: $(pngs)

# TODO: No local init.el!  Isolate required options so that this is actually
# portable!
%.pdf: %.org %-preamble.tex $(pngs)
	emacs --batch -l ~/.emacs.d/init.el $< -f org-beamer-export-to-pdf

# TODO: Either script with GIMP or just use ImageMagick and get rid of xcfs
%.png: %.xcf
	GIMP_INPUT="$<" GIMP_OUTPUT="$@" gimp -ni -b - < build-aux/xcf2png.scm