DESCRIPTION="visualization toolkit"
HOMEPAGE="http://public.kitware.com/VTK/index.php"
LICENSE="VTK"

SLOT=0
KEYWORDS="x86"

IUSE="doc python tcltk"
DEPEND="dev-util/cmake media-libs/jpeg media-libs/tiff media-libs/libpng sys-libs/zlib"

SRC_URI="ftp://public.kitware.com/pub/vtk/vtk4.2/VTK-4.2-LatestRelease.tar.gz"
if [ `use doc` ]; then
	SRC_URI="$SRC_URI ftp://public.kitware.com/pub/vtk/vtk4.2/VTKDocHtml-4.2.tar.gz"
fi

S="${WORKDIR}/VTK-4.2.2"

src_compile() {
	# gcc versions 3.2.x seem to have sse-related bugs that are triggered
	# by VTK when compiling for pentium3

	typeset -x CFLAGS="$CFLAGS -mno-sse"
	typeset -x CXXFLAGS="$CXXFLAGS -mno-sse"

	cmake

	touch X
	echo '/^CMAKE_INSTALL_PREFIX/s/=.*$/=\/usr/' >> X
	echo '/^BUILD_SHARED_LIBS/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_PATENTED/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_HYBRID/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_PARALLEL/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_SYSTEM_JPEG/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_SYSTEM_PNG/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_SYSTEM_TIFF/s/=OFF/=ON/' >> X
	echo '/^VTK_USE_SYSTEM_ZLIB/s/=OFF/=ON/' >> X
	
	if [ `use python` ]; then
		echo '/^VTK_WRAP_PYTHON/s/=OFF/=ON/' >> X
	fi
	if [ `use tcltk` ]; then
		echo '/^VTK_WRAP_TCL/s/=OFF/=ON/' >> X
	fi

	sed -f X CMakeCache.txt > CMakeCache.new
	mv CMakeCache.new CMakeCache.txt
	cmake
	make
}

src_install() {
	DESTDIR="${D}" make install

	if [ `use python` ]; then
		cd ${S}/Wrapping/Python
		python setup.py install --root ${D}
	fi

	# move dynamic libs from .../usr/lib/vtk to .../usr/lib

	cd ${D}/usr/lib
	mv vtk/lib*.so .

	# and link to the python ones from the python site-lib dir

	cd ${D}/usr/lib/python2.2/site-packages/vtk_python
	ln -s ../../../libvtk*Python*.so .

	if [ `use doc` ]; then
		cd ${WORKDIR}/html
		dohtml -r .
		dodir /usr/share/doc/${PF}
		cp -r ${S}/Examples ${D}/usr/share/doc/${PF}/examples
	fi
}