# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

inherit versionator eutils
MY_P=OpenSceneGraph-$(replace_version_separator 3 -)

DESCRIPTION="Cross-platform, high performance 3D graphics toolkit."
HOMEPAGE="http://www.openscenegraph.org/"
SRC_URI="http://openscenegraph.org/downloads/developer/${MY_P}.tar.gz"

LICENSE="OSGPL"
SLOT="0"
KEYWORDS="~x86"
IUSE="coin doc examples gdal gif glut jasper jpeg png tiff truetype xine"

DEPEND="virtual/opengl
		>=media-libs/openproducer-1.0.1
		>=dev-libs/openthreads-1.4.2
		coin? (media-libs/coin)
		doc? (app-doc/doxygen)
		gdal? (sci-libs/gdal)
		gif? (media-libs/giflib)
		glut? (virtual/glut)
		jasper? (media-libs/jasper)
		jpeg? (media-libs/jpeg)
		png? (media-libs/libpng sys-libs/zlib)
		tiff? (media-libs/tiff)
		truetype? (media-libs/freetype)
		xine? (media-libs/xine-lib)"

S="${WORKDIR}/${MY_P}"
		
src_unpack() {
	unpack ${A}
	cd "${S}"

	sed -i "s:OPTF.*=.*:OPTF=\"${CXXFLAGS}\":" Make/makedefs \
		|| die "sed (CXXFLAGS) failed"

	sed -i 's/-lungif/-lgif/' Make/makedefs \
		|| die "sed (lgif) failed"

	sed -i "s/\$(OSGHOME)\///" doc/Doxyfiles/all_Doxyfile \
		|| die "sed (doxyfile) failed"
}

src_compile() {
	
		function do_myconf {
			myconf=( "${myconf[@]}" "${2} ?= ${1}" )
		}

	# Some presets
		do_myconf "no" "COMPILE_INTROSPECTION"
		do_myconf "yes"	"PRODUCER_INSTALLED"
		do_myconf "no" "INVENTOR_INSTALLED"
		do_myconf "no" "PERFORMER_INSTALLED"
		do_myconf "no" "QUICKTIME_INSTALLED"

	# USE conditional config
	
		# Strip unwanted USE flags
		usedeps=(`echo "${IUSE}" | sed 's/doc //'`)
		
		# Do each flag once
		count=0
		while [ ${count} != ${#usedeps[@]} ]
			do
		
			# Match conf options to the USE flags
			usetmp=${usedeps[${count}]}
			case ${usetmp} in
				coin)
					conftmp="COIN_INSTALLED"
					;;
				examples)
					conftmp="COMPILE_EXAMPLES"
					;;
				gdal)
					conftmp="GDAL_INSTALLED"
					;;
				gif)
					conftmp="LIBUNGIF_INSTALLED"
					;;
				glut)
					conftmp="GLUT_INSTALLED"
					;;
				jasper)
					conftmp="JASPER_INSTALLED"
					;;
				jpeg)
					conftmp="LIBJPEG_INSTALLED"
					;;
				png)
					conftmp="LIBPNG_INSTALLED"
					;;
				tiff)
					conftmp="LIBTIFF_INSTALLED"
					;;
				truetype)
					conftmp="FREETYPE_INSTALLED"
					;;
				xine)
					conftmp="XINE_INSTALLED"
					;;
			esac

			if use ${usetmp} ; then
				do_myconf "yes" "${conftmp}"
			else
				do_myconf "no" "${conftmp}"
			fi
			let "count += 1"
		done

	# Write options to the config file
	count=0
	while [ "${count}" != "${#myconf[@]}" ]
		do
		echo "${myconf[${count}]}" >> ${T}/my_dependencies
		let "count += 1"
	done

	cat ${T}/my_dependencies
	export OSG_DEPENDENCIES=${T}/my_dependencies

	emake || die "emake failed"

	if use doc ; then
	doxygen doc/Doxyfiles/all_Doxyfile
	fi
}

src_install() {
	make install INST_LOCATION="${D}"/usr || die "make install failed"

	dodoc AUTHORS.txt ChangeLog NEWS.txt README.txt

	if use doc ; then
	dodoc doc/ProgrammingGuide/ProgrammingGuide.odt
	dohtml -r doc/doxygen/html/
	fi

	insinto ${ROOT}/usr/$(get_libdir)/pkgconfig
	doins ${S}/Make/${PN}.pc

	if use examples ; then
	mv "${S}"/examples \
		"${D}"/usr/share/doc/${P}/
	fi

	# Cleanup
	mv "${D}"/usr/share/OpenSceneGraph/bin "${D}"/usr/bin
	rm -rf "${D}"/usr/share/OpenSceneGraph/
}