# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI="3"

inherit eutils autotools

DESCRIPTION="An OCR Engine that was developed at HP and now at Google"
HOMEPAGE="http://code.google.com/p/tesseract-ocr/"

# deu-frak corresponds to an old german graphic style named fraktur
#   that's the same language (german, de)
URI_PREFIX="http://tesseract-ocr.googlecode.com/files"
SRC_URI="${URI_PREFIX}/tesseract-${PV}.tar.gz
	${URI_PREFIX}/${P}.eng.tar.gz
	linguas_ar? ( ${URI_PREFIX}/${P}.ara.tar.gz )
	linguas_he? (
		${URI_PREFIX}/${P}.heb.tar.gz
		${URI_PREFIX}/${P}.heb-com.tar.gz
	)
	linguas_hi? ( ${URI_PREFIX}/${P}.hin.tar.gz )
	linguas_sk? (
		${URI_PREFIX}/${P}.slk-frak.tar.gz
		${URI_PREFIX}/slk.traineddata.gz
	)
	linguas_th? ( ${URI_PREFIX}/${P}.tha.tar.gz )

	linguas_bg? ( ${URI_PREFIX}/bul.traineddata.gz )
	linguas_ca? ( ${URI_PREFIX}/cat.traineddata.gz )
	linguas_cs? ( ${URI_PREFIX}/ces.traineddata.gz )
	linguas_da? ( ${URI_PREFIX}/dan.traineddata.gz )
	linguas_de? (
		${URI_PREFIX}/deu.traineddata.gz
		${URI_PREFIX}/deu-frak.traineddata.gz
	)
	linguas_el? ( ${URI_PREFIX}/ell.traineddata.gz )
	linguas_es? ( ${URI_PREFIX}/spa.traineddata.gz )
	linguas_fi? ( ${URI_PREFIX}/fin.traineddata.gz )
	linguas_fr? ( ${URI_PREFIX}/fra.traineddata.gz )
	linguas_id? ( ${URI_PREFIX}/ind.traineddata.gz )
	linguas_it? ( ${URI_PREFIX}/ita.traineddata.gz )
	linguas_hu? ( ${URI_PREFIX}/hun.traineddata.gz )
	linguas_ja? ( ${URI_PREFIX}/jpn.traineddata.gz )
	linguas_ko? ( ${URI_PREFIX}/kor.traineddata.gz )
	linguas_lt? ( ${URI_PREFIX}/lit.traineddata.gz )
	linguas_lv? ( ${URI_PREFIX}/lav.traineddata.gz )
	linguas_nl? ( ${URI_PREFIX}/nld.traineddata.gz )
	linguas_nb? ( ${URI_PREFIX}/nor.traineddata.gz )
	linguas_pl? ( ${URI_PREFIX}/pol.traineddata.gz )
	linguas_pt? ( ${URI_PREFIX}/por.traineddata.gz )
	linguas_ro? ( ${URI_PREFIX}/ron.traineddata.gz )
	linguas_ru? ( ${URI_PREFIX}/rus.traineddata.gz )
	linguas_sl? ( ${URI_PREFIX}/slv.traineddata.gz )
	linguas_sr? ( ${URI_PREFIX}/srp.traineddata.gz )
	linguas_sv? ( ${URI_PREFIX}/swe.traineddata.gz )
	linguas_tl? ( ${URI_PREFIX}/tgl.traineddata.gz )
	linguas_tr? ( ${URI_PREFIX}/tur.traineddata.gz )
	linguas_uk? ( ${URI_PREFIX}/ukr.traineddata.gz )
	linguas_vi? ( ${URI_PREFIX}/vie.traineddata.gz )
	linguas_zh_CN? ( ${URI_PREFIX}/chi_sim.traineddata.gz )
	linguas_zh_TW? ( ${URI_PREFIX}/chi_tra.traineddata.gz )"

LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~mips ~ppc ~ppc64 ~sparc ~x86"
IUSE="examples jpeg png tiff -webp +scrollview
	linguas_ar linguas_bg linguas_ca linguas_cs linguas_da linguas_de
	linguas_el linguas_es linguas_fi linguas_fr linguas_he linguas_hi
	linguas_id linguas_it linguas_hu linguas_ja linguas_ko linguas_lt
	linguas_lv linguas_nl linguas_nb linguas_pl linguas_pt linguas_ro
	linguas_ru linguas_sl linguas_sk linguas_sr linguas_sv linguas_th
	linguas_tl linguas_tr linguas_uk linguas_vi linguas_zh_CN linguas_zh_TW"

DEPEND="media-libs/leptonica[zlib,tiff?,jpeg?,png?,webp?]"
RDEPEND="${DEPEND}"

# NOTES:
# english language files are always installed because they are used by default
#   that is a tesseract bug and if possible this workaround should be avoided
#   see bug 287373

S="${WORKDIR}/tesseract-${PV}"
src_prepare() {
	sed -i '/ACLOCAL_AMFLAGS/s/ -I m4//' Makefile.am
	eautoreconf
	sed -i 's!po/Makefile.in!!' configure.ac
}

src_configure() {
	# https://code.google.com/p/tesseract-ocr/issues/detail?id=707
	econf $(use_enable scrollview graphics)
}

src_install() {
	emake DESTDIR="${D}" install || die "emake install failed"

	dodoc AUTHORS ChangeLog NEWS README ReleaseNotes || die "dodoc failed"

	insinto /usr/share/tessdata
	doins "${WORKDIR}"/*.traineddata
	doins "${WORKDIR}"/tesseract-ocr/tessdata/*

	if use examples; then
		insinto /usr/share/doc/${PF}/examples
		doins eurotext.tif phototest.tif || die "doins failed"
	fi
}