# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

EAPI=5
inherit autotools-multilib flag-o-matic multilib toolchain-funcs

DESCRIPTION="A high-quality and portable font engine"
HOMEPAGE="http://www.freetype.org/"
SRC_URI="mirror://sourceforge/freetype/${P/_/}.tar.bz2
	mirror://nongnu/freetype/${P/_/}.tar.bz2
	utils?	( mirror://sourceforge/freetype/ft2demos-${PV}.tar.bz2
		mirror://nongnu/freetype/ft2demos-${PV}.tar.bz2 )
	doc?	( mirror://sourceforge/freetype/${PN}-doc-${PV}.tar.bz2
		mirror://nongnu/freetype/${PN}-doc-${PV}.tar.bz2 )
	infinality? ( https://dev.gentoo.org/~polynomial-c/${P}-infinality-patches.tar.xz )"

LICENSE="|| ( FTL GPL-2+ )"
SLOT="2"
KEYWORDS="alpha amd64 arm ~arm64 hppa ia64 ~m68k ~mips ppc ppc64 ~s390 ~sh sparc x86 ~ppc-aix ~amd64-fbsd ~sparc-fbsd ~x86-fbsd ~x64-freebsd ~x86-freebsd ~x86-interix ~amd64-linux ~arm-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
IUSE="X +adobe-cff auto-hinter bindist bzip2 debug doc fontforge harfbuzz
	infinality png static-libs utils"
REQUIRED_USE="harfbuzz? ( auto-hinter )"
RESTRICT="!bindist? ( bindist )" # bug 541408

CDEPEND=">=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}]
	bzip2? ( >=app-arch/bzip2-1.0.6-r4[${MULTILIB_USEDEP}] )
	harfbuzz? ( >=media-libs/harfbuzz-0.9.19[truetype,${MULTILIB_USEDEP}] )
	png? ( >=media-libs/libpng-1.2.51:=[${MULTILIB_USEDEP}] )
	utils? (
		X? (
			>=x11-libs/libX11-1.6.2[${MULTILIB_USEDEP}]
			>=x11-libs/libXau-1.0.7-r1[${MULTILIB_USEDEP}]
			>=x11-libs/libXdmcp-1.1.1-r1[${MULTILIB_USEDEP}]
		)
	)"
DEPEND="${CDEPEND}
	virtual/pkgconfig"
RDEPEND="${CDEPEND}
	abi_x86_32? ( utils? ( !app-emulation/emul-linux-x86-xlibs[-abi_x86_32(-)] ) )"
PDEPEND="infinality? ( media-libs/fontconfig-infinality )"

src_prepare() {
	enable_option() {
		sed -i -e "/#define $1/a #define $1" \
			include/config/ftoption.h \
			|| die "unable to enable option $1"
	}

	disable_option() {
		sed -i -e "/#define $1/ { s:^:/*:; s:$:*/: }" \
			include/config/ftoption.h \
			|| die "unable to disable option $1"
	}

	# This is the same as the 01 patch from infinality
	epatch "${FILESDIR}"/${PN}-2.3.2-enable-valid.patch

	if use infinality; then
		EPATCH_SOURCE="${WORKDIR}/${P}-infinality-patches" EPATCH_SUFFIX="patch" \
			EPATCH_FORCE="yes" epatch

		# FT_CONFIG_OPTION_SUBPIXEL_RENDERING is already enabled in freetype-2.4.11
		enable_option TT_CONFIG_OPTION_SUBPIXEL_HINTING
	fi

	if ! use bindist; then
		# See http://freetype.org/patents.html
		# ClearType is covered by several Microsoft patents in the US
		enable_option FT_CONFIG_OPTION_SUBPIXEL_RENDERING
	fi

	if use auto-hinter; then
		disable_option TT_CONFIG_OPTION_BYTECODE_INTERPRETER
		enable_option TT_CONFIG_OPTION_UNPATENTED_HINTING
	fi

	if ! use adobe-cff; then
		enable_option CFF_CONFIG_OPTION_OLD_ENGINE
	fi

	if use debug; then
		enable_option FT_DEBUG_LEVEL_TRACE
		enable_option FT_DEBUG_MEMORY
	fi

	epatch "${FILESDIR}"/${PN}-2.4.11-sizeof-types.patch # 459966

	if use utils; then
		cd "${WORKDIR}/ft2demos-${PV}" || die
		# Disable tests needing X11 when USE="-X". (bug #177597)
		if ! use X; then
			sed -i -e "/EXES\ +=\ ftdiff/ s:^:#:" Makefile || die
		fi
		cd "${S}" || die
	fi

	# we need non-/bin/sh to run configure
	if [[ -n ${CONFIG_SHELL} ]] ; then
		sed -i -e "1s:^#![[:space:]]*/bin/sh:#!$CONFIG_SHELL:" \
			"${S}"/builds/unix/configure || die
	fi

	autotools-utils_src_prepare
}

multilib_src_configure() {
	append-flags -fno-strict-aliasing
	type -P gmake &> /dev/null && export GNUMAKE=gmake

	local myeconfargs=(
		--enable-biarch-config
		$(use_with bzip2)
		$(use_with harfbuzz)
		$(use_with png)

		# avoid using libpng-config
		LIBPNG_CFLAGS="$($(tc-getPKG_CONFIG) --cflags libpng)"
		LIBPNG_LDFLAGS="$($(tc-getPKG_CONFIG) --libs libpng)"
	)

	autotools-utils_src_configure
}

multilib_src_compile() {
	default

	if multilib_is_native_abi && use utils; then
		einfo "Building utils"
		# fix for Prefix, bug #339334
		emake \
			X11_PATH="${EPREFIX}/usr/$(get_libdir)" \
			FT2DEMOS=1 TOP_DIR_2="${WORKDIR}/ft2demos-${PV}"
	fi
}

multilib_src_install() {
	default

	if multilib_is_native_abi && use utils; then
		einfo "Installing utils"
		rm "${WORKDIR}"/ft2demos-${PV}/bin/README || die
		local ft2demo
		for ft2demo in ../ft2demos-${PV}/bin/*; do
			./libtool --mode=install $(type -P install) -m 755 "$ft2demo" \
				"${ED}"/usr/bin || die
		done
	fi
}

multilib_src_install_all() {
	if use fontforge; then
		# Probably fontforge needs less but this way makes things simplier...
		einfo "Installing internal headers required for fontforge"
		local header
		find src/truetype include/internal -name '*.h' | \
		while read header; do
			mkdir -p "${ED}/usr/include/freetype2/internal4fontforge/$(dirname ${header})" || die
			cp ${header} "${ED}/usr/include/freetype2/internal4fontforge/$(dirname ${header})" || die
		done
	fi

	dodoc docs/{CHANGES,CUSTOMIZE,DEBUG,INSTALL.UNIX,*.txt,PROBLEMS,TODO}
	use doc && dohtml -r docs/*

	prune_libtool_files --all
}

pkg_postinst() {
	if use auto-hinter && ! use harfbuzz; then
		elog "To improve OpenType font hinting with the auto-hinter, the harfbuzz"
		elog "useflag needs to be enabled for ${CATEGORY}/${PN}."
		elog "See the INSTALL.UNIX file in the doc directory of this package for"
		elog "more information. But it is recommended not to use the auto-hinter."
	fi
}