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# Copyright 2019-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7

inherit cmake

DESCRIPTION="Universal framework for cross-platform visualization applications"
HOMEPAGE="https://gr-framework.org/"
SRC_URI="https://github.com/sciapp/gr/archive/v${PV}.tar.gz -> ${P}.tar.gz"

LICENSE="MIT"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="cairo ffmpeg postscript tiff truetype"

DEPEND="
	dev-qt/qtgui:5
	media-libs/fontconfig
	media-libs/glfw
	media-libs/libjpeg-turbo
	media-libs/libpng
	media-libs/qhull
	sys-libs/zlib
	virtual/opengl
	x11-libs/libX11
	x11-libs/libXt
	cairo? ( x11-libs/cairo )
	ffmpeg? ( media-video/ffmpeg )
	postscript? ( app-text/ghostscript-gpl )
	tiff? ( media-libs/tiff )
	truetype? ( media-libs/freetype )
"
RDEPEND="${DEPEND}"
BDEPEND=""

PATCHES=(
	"${FILESDIR}/${P}-qt-5.15.patch"
)

src_configure() {
	use cairo || mycmakeargs+=( -DCAIRO_LIBRARY= )
	use postscript || mycmakeargs+=( -DGS_LIBRARY= )
	use ffmpeg || mycmakeargs+=( -DFFMPEG_INCLUDE_DIR= )
	use truetype || mycmakeargs+=( -DFREETYPE_LIBRARY= )
	use tiff || mycmakeargs+=( -DTIFF_LIBRARY= )

	# todo: X11 automagic

	mycmakeargs+=( -DCMAKE_INSTALL_PREFIX=/usr/gr )
	#
	# I need to have a serious conversation with upstream.
	# * The main consumer of this package is dev-lang/julia.
	# * If I patch gr to install in standard locations, julia does
	#   not find it anymore.
	# * I can't patch julia, since the corresponding scripts are
	#   downloaded at runtime from its package registry ...
	#

	cmake_src_configure
}

src_install() {
	cmake_src_install
	find "${ED}" -name '*.a' -delete

	echo "GRDIR=/usr/gr" > "${T}/99gr"
	echo "LDPATH=/usr/gr/$(get_libdir)" >> "${T}/99gr"
	doenvd "${T}/99gr"

	dosym ../gr/bin/gksqt /usr/bin/gksqt

	elog "${P} relies on the environment variable GRDIR. If you want to use it in a running shell,"
	elog "e.g. with dev-lang/julia, then run \"source /etc/profile\" first."
}