CMakeLists: Derive the source directory grouping from targets themselves

Removes the need to store to separate SRC and HEADER variables, and then
construct the target in most cases.

1 files changed, 4 insertions, 2 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index d814bb74f..aa2154cb1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -323,12 +323,14 @@ endif()
 # This function should be passed a list of all files in a target. It will automatically generate
 # file groups following the directory hierarchy, so that the layout of the files in IDEs matches the
 # one in the filesystem.
-function(create_directory_groups)
+function(create_target_directory_groups target_name)
     # Place any files that aren't in the source list in a separate group so that they don't get in
     # the way.
     source_group("Other Files" REGULAR_EXPRESSION ".")
 
-    foreach(file_name ${ARGV})
+    get_target_property(target_sources "${target_name}" SOURCES)
+
+    foreach(file_name IN LISTS target_sources)
         get_filename_component(dir_name "${file_name}" PATH)
         # Group names use '\' as a separator even though the entire rest of CMake uses '/'...
         string(REPLACE "/" "\\" group_name "${dir_name}")