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

inherit eutils
MY_P=OpenSceneGraph-${PV}-1

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"

	if use gif ; then
		sed -i 's/-lungif/-lgif/' Make/makedefs \
		|| die "sed (lgif) failed"
	fi

	if use doc ; then
		sed -i 's/\$(OSGHOME)\///' doc/Doxyfiles/all_Doxyfile \
		|| die "sed (doxyfile) failed"
	fi
}

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} != ${#myconf[@]} ]
		do
		einfo "${myconf[${count}]}"
		echo "${myconf[${count}]}" >> "${T}"/my_dependencies
		let "count += 1"
	done

	export OSG_DEPENDENCIES="${T}"/my_dependencies
	emake || die "emake failed"

	use doc && doxygen doc/Doxyfiles/all_Doxyfile
}

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

	use examples && mv "${S}"/examples/ "${D}"/usr/share/doc/${P}/

	cd "${D}"/usr/share/OpenSceneGraph/bin/
	dobin osgarchive osgconv osgversion osgviewer || die "dobin failed"
	cd -
	rm -rf "${D}"/usr/share/OpenSceneGraph/
}