Merge pull request #289 from asalzburger/feat-add-svg-display

feat: add svg display

CMakeLists.txt

@@ -48,6 +48,7 @@ option( DETRAY_EIGEN_PLUGIN "Build Eigen math plugin" ON )
 option( DETRAY_SMATRIX_PLUGIN "Build ROOT/SMatrix math plugin" OFF )
 option( DETRAY_VC_PLUGIN "Build Vc based math plugin" ON )
 option( DETRAY_IO_CSV "Build CSV IO module" ON )
+option( DETRAY_SVG_DISPLAY "Build ActSVG display module" OFF)
 option( DETRAY_BUILD_CUDA "Build the CUDA sources included in detray"
    ${DETRAY_BUILD_CUDA_DEFAULT} )
 option( DETRAY_BUILD_TESTING "Build the (unit) tests of Detray"
@@ -90,6 +91,21 @@ if( DETRAY_SETUP_ALGEBRA_PLUGINS )
    endif()
 endif()
 
+# Set up ACTSVG for displaying
+option( DETRAY_SETUP_ACTSVG
+   "Set up the actsvg target(s) explicitly" TRUE )
+option( DETRAY_USE_SYSTEM_ACTSVG
+   "Pick up an existing installation of dfelibs from the build environment"
+   FALSE )
+if( DETRAY_SETUP_ACTSVG )
+   if( DETRAY_USE_SYSTEM_ACTSVG )
+      find_package( actsvg::core actsvg::meta REQUIRED )
+   else()
+      add_subdirectory( extern/actsvg )
+   endif()
+endif()
+
+
 # Set up dfelibs.
 option( DETRAY_SETUP_DFELIBS
    "Set up the dfelibs target(s) explicitly" TRUE )

extern/actsvg/CMakeLists.txt

@@ -0,0 +1,24 @@
+# Detray library, part of the ACTS project (R&D line)
+#
+# (c) 2021-2022 CERN for the benefit of the ACTS project
+#
+# Mozilla Public License Version 2.0
+
+# CMake include(s).
+cmake_minimum_required( VERSION 3.14 )
+include( FetchContent )
+
+# Tell the user what's happening.
+message( STATUS "Building actsvg as part of the Detray project" )
+
+# Declare where to get Actsvg from.
+set( DETRAY_ACTSVG_GIT_REPOSITORY "https://github.com/acts-project/actsvg.git"
+   CACHE STRING "Git repository to take actsvg from" )
+set( DETRAY_ACTSVG_GIT_TAG "v0.4.19" CACHE STRING "Version of actsvg to build" )
+mark_as_advanced( DETRAY_ACTSVG_GIT_REPOSITORY DETRAY_ACTSVG_GIT_TAG )
+FetchContent_Declare( actsvg
+   GIT_REPOSITORY "${DETRAY_ACTSVG_GIT_REPOSITORY}"
+   GIT_TAG "${DETRAY_ACTSVG_GIT_TAG}" )
+
+# Now set up its build.
+FetchContent_MakeAvailable( actsvg )

extern/actsvg/README.md

@@ -0,0 +1,3 @@
+This directory holds a simple build recipe for the
+[ActSVG](https://github.com/acts-project/actsvg) project. Used in case
+`DETRAY_USE_SYSTEM_ACTSVG` is set to `FALSE` for the build.