x11-libs/qwt: add polar use flag

Closes: https://bugs.gentoo.org/877757
Co-authored-by: Craig Tong <craigtong04@gmail.com>
Signed-off-by: Andrew Ammerlaan <andrewammerlaan@gentoo.org>

x11-libs/qwt/metadata.xml

@@ -15,6 +15,7 @@
   <use>
     <flag name="designer">Installs <pkg>dev-qt/designer</pkg> plugin.</flag>
     <flag name="mathml">Use the MathML renderer of the Qt solutions package.</flag>
+    <flag name="polar">Install the QwtPolar headers</flag>
   </use>
   <upstream>
     <remote-id type="sourceforge">qwt</remote-id>

x11-libs/qwt/qwt-6.2.0-r2.ebuild

@@ -0,0 +1,128 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+DOCS_BUILDER="doxygen"
+DOCS_DIR="doc"
+DOCS_CONFIG_NAME="Doxyfile"
+DOCS_DEPEND="media-gfx/graphviz"
+
+inherit qmake-utils docs
+
+DESCRIPTION="2D plotting library for Qt5"
+HOMEPAGE="https://qwt.sourceforge.io/"
+SRC_URI="mirror://sourceforge/project/${PN}/${PN}/${PV}/${P}.tar.bz2"
+
+LICENSE="qwt"
+KEYWORDS="~amd64 ~arm ~ppc ~ppc64 ~riscv ~sparc ~x86 ~amd64-linux ~x86-linux"
+SLOT="6/2.0"
+IUSE="designer doc examples opengl polar svg"
+
+DEPEND="
+	dev-qt/qtconcurrent:5
+	dev-qt/qtcore:5
+	dev-qt/qtgui:5
+	dev-qt/qtprintsupport:5
+	dev-qt/qtwidgets:5
+	designer? ( dev-qt/designer:5 )
+	opengl? (
+		dev-qt/qtopengl:5
+		virtual/opengl
+	)
+	svg? ( dev-qt/qtsvg:5 )
+"
+RDEPEND="${DEPEND}"
+
+# tests require package to be already installed
+RESTRICT="test"
+
+DOCS=( CHANGES-6.2 README )
+
+src_prepare() {
+	default
+
+	cat > qwtconfig.pri <<-EOF || die
+		QWT_INSTALL_LIBS = "${EPREFIX}/usr/$(get_libdir)"
+		QWT_INSTALL_HEADERS = "${EPREFIX}/usr/include/qwt6"
+		QWT_INSTALL_DOCS = "${EPREFIX}/usr/share/doc/${PF}"
+		QWT_CONFIG += QwtPlot QwtWidgets QwtPkgConfig
+		VER_MAJ = $(ver_cut 1)
+		VER_MIN = $(ver_cut 2)
+		VER_PAT = $(ver_cut 3)
+		VERSION = ${PV/_*}
+		QWT_VER_MAJ = $(ver_cut 1)
+		QWT_VER_MIN = $(ver_cut 2)
+		QWT_VER_PAT = $(ver_cut 3)
+		QWT_VERSION = ${PV/_*}
+	EOF
+
+	use designer && echo "QWT_CONFIG += QwtDesigner" >> qwtconfig.pri
+	use opengl && echo "QWT_CONFIG += QwtOpenGL" >> qwtconfig.pri
+	use polar && echo "QWT_CONFIG += QwtPolar" >> qwtconfig.pri
+	use svg && echo "QWT_CONFIG += QwtSvg" >> qwtconfig.pri
+
+	cat > qwtbuild.pri <<-EOF || die
+		QWT_CONFIG += qt warn_on thread release no_keywords
+		DEFINES += QWT_MOC_INCLUDE=1
+	EOF
+
+	echo "QWT_CONFIG += QwtDll" >> qwtconfig.pri
+
+	cat >> qwtconfig.pri <<-EOF || die
+		QWT_INSTALL_PLUGINS   = "${EPREFIX}$(qt5_get_plugindir)/designer"
+		QWT_INSTALL_FEATURES  = "${EPREFIX}$(qt5_get_mkspecsdir)/features"
+	EOF
+	sed \
+		-e 's/target doc/target/' \
+		-e "/^TARGET/s:(qwt):(qwt6-qt5):g" \
+		-e "/^TARGET/s:qwt):qwt6-qt5):g" \
+		-e "s:QWT_SONAME=libqwt.so:QWT_SONAME=libqwt6-qt5.so:g" \
+		-i src/src.pro || die
+
+	sed \
+		-e '/qwtAddLibrary/s:(qwt):(qwt6-qt5):g' \
+		-e '/qwtAddLibrary/s:qwt):qwt6-qt5):g' \
+		-i qwt.prf designer/designer.pro examples/examples.pri || die
+}
+
+src_configure() {
+	eqmake5
+}
+
+src_compile() {
+	default
+	# need doxyfilter.sh in PATH
+	PATH="${PATH}:${S}/doc/" docs_compile
+}
+
+src_test() {
+	cd tests || die
+	eqmake5 tests.pro
+	emake
+}
+
+src_install() {
+	emake INSTALL_ROOT="${D}" install
+	einstalldocs
+
+	mkdir -p "${ED}"/usr/share/man/ || die
+	mv "${ED}"/usr/share/doc/${PF}/man/man3 "${ED}"/usr/share/man/ && \
+		rmdir "${ED}"/usr/share/doc/${PF}/man || die
+
+	if use examples; then
+		# don't build examples - fix the qt files to build once installed
+		cat > examples/examples.pri <<-EOF || die
+			include( qwtconfig.pri )
+			TEMPLATE     = app
+			MOC_DIR      = moc
+			INCLUDEPATH += "${EPREFIX}/usr/include/qwt6"
+			DEPENDPATH  += "${EPREFIX}/usr/include/qwt6"
+			LIBS        += -lqwt6
+		EOF
+		sed -i -e 's:../qwtconfig:qwtconfig:' examples/examples.pro || die
+		cp *.pri examples/ || die
+		insinto /usr/share/${PN}6
+		doins -r examples
+	fi
+}