# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

EAPI="5"

inherit gnome.org gnome2-utils multilib libtool

DESCRIPTION="Image loading library for GTK+"
HOMEPAGE="http://www.gtk.org/"

LICENSE="LGPL-2+"
SLOT="2"
KEYWORDS="amd64 x86"
IUSE="+X debug +introspection jpeg jpeg2k tiff test"

COMMON_DEPEND="
	>=dev-libs/glib-2.37.6:2
	>=media-libs/libpng-1.4:0=
	introspection? ( >=dev-libs/gobject-introspection-0.9.3 )
	jpeg? ( virtual/jpeg:0= )
	jpeg2k? ( media-libs/jasper:= )
	tiff? ( >=media-libs/tiff-3.9.2:0= )
	X? ( x11-libs/libX11 )
"
DEPEND="${COMMON_DEPEND}
	>=dev-util/gtk-doc-am-1.20
	>=sys-devel/gettext-0.17
	virtual/pkgconfig
"
# librsvg blocker is for the new pixbuf loader API, you lose icons otherwise
RDEPEND="${COMMON_DEPEND}
	!<gnome-base/gail-1000
	!<gnome-base/librsvg-2.31.0
	!<x11-libs/gtk+-2.21.3:2
	!<x11-libs/gtk+-2.90.4:3
"

src_prepare() {
	# This will avoid polluting the pkg-config file with versioned libpng,
	# which is causing problems with libpng14 -> libpng15 upgrade
	# See upstream bug #667068
	# First check that the pattern is present, to catch upstream changes on bumps,
	# because sed doesn't return failure code if it doesn't do any replacements
	grep -q  'l in libpng16' configure || die "libpng check order has changed upstream"
	sed -e 's:l in libpng16:l in libpng libpng16:' -i configure || die
	default
	elibtoolize # for Darwin modules, bug #???
}

src_configure() {
	# png always on to display icons
	econf \
		$(usex debug --enable-debug=yes "") \
		$(use_with jpeg libjpeg) \
		$(use_with jpeg2k libjasper) \
		$(use_with tiff libtiff) \
		$(use_enable introspection) \
		$(use_with X x11) \
		--with-libpng
}

src_install() {
	# Parallel install fails when no gdk-pixbuf is already installed, bug #481372
	MAKEOPTS="${MAKEOPTS} -j1" default
	prune_libtool_files --modules
}

pkg_preinst() {
	gnome2_gdk_pixbuf_savelist

	# Make sure loaders.cache belongs to gdk-pixbuf alone
	local cache="usr/$(get_libdir)/${PN}-2.0/2.10.0/loaders.cache"

	if [[ -e ${EROOT}${cache} ]]; then
		cp "${EROOT}"${cache} "${ED}"/${cache} || die
	else
		touch "${ED}"/${cache} || die
	fi
}

pkg_postinst() {
	# causes segfault if set, see bug 375615
	unset __GL_NO_DSO_FINALIZER

	gnome2_gdk_pixbuf_update

	# Migration snippet for when this was handled by gtk+
	if [ -e "${EROOT}"usr/lib/gtk-2.0/2.*/loaders ]; then
		elog "You need to rebuild ebuilds that installed into" "${EROOT}"usr/lib/gtk-2.0/2.*/loaders
		elog "to do that you can use qfile from portage-utils:"
		elog "emerge -va1 \$(qfile -qC ${EPREFIX}/usr/lib/gtk-2.0/2.*/loaders)"
	fi
}

pkg_postrm() {
	if [[ -z ${REPLACED_BY_VERSIONS} ]]; then
		rm -f "${EROOT}"usr/$(get_libdir)/${PN}-2.0/2.10.0/loaders.cache
	fi
}