cmake: allow source_group to preserve file-system tree (for MSVS)

cmake/OpenCVModule.cmake

@@ -485,6 +485,9 @@ macro(ocv_glob_module_sources)
   file(GLOB lib_hdrs     "include/opencv2/*.hpp" "include/opencv2/${name}/*.hpp" "include/opencv2/${name}/*.h")
   file(GLOB lib_hdrs_detail "include/opencv2/${name}/detail/*.hpp" "include/opencv2/${name}/detail/*.h")
 
+  ocv_source_group("Src" DIRBASE "${CMAKE_CURRENT_SOURCE_DIR}/src" FILES ${lib_srcs} ${lib_int_hdrs})
+  ocv_source_group("Include" DIRBASE "${CMAKE_CURRENT_SOURCE_DIR}/include" FILES ${lib_hdrs} ${lib_hdrs_detail})
+
   file(GLOB lib_cuda_srcs "src/cuda/*.cu")
   set(cuda_objs "")
   set(lib_cuda_hdrs "")
@@ -493,11 +496,9 @@ macro(ocv_glob_module_sources)
     file(GLOB lib_cuda_hdrs "src/cuda/*.hpp")
 
     ocv_cuda_compile(cuda_objs ${lib_cuda_srcs} ${lib_cuda_hdrs})
-    source_group("Src\\Cuda"      FILES ${lib_cuda_srcs} ${lib_cuda_hdrs})
+    source_group("Src\\Cuda" FILES ${lib_cuda_srcs} ${lib_cuda_hdrs})
   endif()
 
-  source_group("Src" FILES ${lib_srcs} ${lib_int_hdrs})
-
   file(GLOB cl_kernels "src/opencl/*.cl")
   if(cl_kernels)
     ocv_include_directories(${OPENCL_INCLUDE_DIRS})
@@ -506,15 +507,13 @@ macro(ocv_glob_module_sources)
       OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.cpp" "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.hpp"
       COMMAND ${CMAKE_COMMAND} -DMODULE_NAME="${the_module_barename}" -DCL_DIR="${CMAKE_CURRENT_SOURCE_DIR}/src/opencl" -DOUTPUT="${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.cpp" -P "${OpenCV_SOURCE_DIR}/cmake/cl2cpp.cmake"
       DEPENDS ${cl_kernels} "${OpenCV_SOURCE_DIR}/cmake/cl2cpp.cmake")
-    source_group("OpenCL" FILES ${cl_kernels} "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.cpp" "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.hpp")
+    ocv_source_group("Src\\opencl\\kernels" FILES ${cl_kernels})
+    ocv_source_group("Src\\opencl\\kernels\\autogenerated" FILES "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.cpp" "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.hpp")
     list(APPEND lib_srcs ${cl_kernels} "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.cpp" "${CMAKE_CURRENT_BINARY_DIR}/opencl_kernels.hpp")
   endif()
 
   ocv_set_module_sources(${ARGN} HEADERS ${lib_hdrs} ${lib_hdrs_detail}
                                  SOURCES ${lib_srcs} ${lib_int_hdrs} ${cuda_objs} ${lib_cuda_srcs} ${lib_cuda_hdrs})
-
-  source_group("Include" FILES ${lib_hdrs})
-  source_group("Include\\detail" FILES ${lib_hdrs_detail})
 endmacro()
 
 # creates OpenCV module in current folder
@@ -692,8 +691,8 @@ function(ocv_add_perf_tests)
       if(NOT OPENCV_PERF_${the_module}_SOURCES)
         file(GLOB_RECURSE perf_srcs "${perf_path}/*.cpp")
         file(GLOB_RECURSE perf_hdrs "${perf_path}/*.hpp" "${perf_path}/*.h")
-        source_group("Src" FILES ${perf_srcs})
-        source_group("Include" FILES ${perf_hdrs})
+        ocv_source_group("Src" DIRBASE "${perf_path}" FILES ${perf_srcs})
+        ocv_source_group("Include" DIRBASE "${perf_path}" FILES ${perf_hdrs})
         set(OPENCV_PERF_${the_module}_SOURCES ${perf_srcs} ${perf_hdrs})
       endif()
 
@@ -742,8 +741,8 @@ function(ocv_add_accuracy_tests)
       if(NOT OPENCV_TEST_${the_module}_SOURCES)
         file(GLOB_RECURSE test_srcs "${test_path}/*.cpp")
         file(GLOB_RECURSE test_hdrs "${test_path}/*.hpp" "${test_path}/*.h")
-        source_group("Src" FILES ${test_srcs})
-        source_group("Include" FILES ${test_hdrs})
+        ocv_source_group("Src" DIRBASE "${test_path}" FILES ${test_srcs})
+        ocv_source_group("Include" DIRBASE "${test_path}" FILES ${test_hdrs})
         set(OPENCV_TEST_${the_module}_SOURCES ${test_srcs} ${test_hdrs})
       endif()
 

cmake/OpenCVUtils.cmake

+# Debugging function
+function(ocv_cmake_dump_vars)
+  cmake_parse_arguments(DUMP "" "TOFILE" "" ${ARGN})
+  set(regex "${DUMP_UNPARSED_ARGUMENTS}")
+  get_cmake_property(_variableNames VARIABLES)
+  set(VARS "")
+  foreach(_variableName ${_variableNames})
+    if(_variableName MATCHES "${regex}")
+      set(VARS "${VARS}${_variableName}=${${_variableName}}\n")
+    endif()
+  endforeach()
+  if(DUMP_TOFILE)
+    file(WRITE ${CMAKE_BINARY_DIR}/${DUMP_TOFILE} "${VARS}")
+  else()
+    message(AUTHOR_WARNING "${VARS}")
+  endif()
+endfunction()
+
+
 # Search packages for host system instead of packages for target system
 # in case of cross compilation thess macro should be defined by toolchain file
 if(NOT COMMAND find_host_package)
@@ -601,7 +620,35 @@ endmacro()
 ################################################################################################
 # short command to setup source group
 function(ocv_source_group group)
-  cmake_parse_arguments(OCV_SOURCE_GROUP "" "" "GLOB" ${ARGN})
-  file(GLOB srcs ${OCV_SOURCE_GROUP_GLOB})
-  source_group(${group} FILES ${srcs})
+  cmake_parse_arguments(SG "" "DIRBASE" "GLOB;GLOB_RECURSE;FILES" ${ARGN})
+  set(files "")
+  if(SG_FILES)
+    list(APPEND files ${SG_FILES})
+  endif()
+  if(SG_GLOB)
+    file(GLOB srcs ${SG_GLOB})
+    list(APPEND files ${srcs})
+  endif()
+  if(SG_GLOB_RECURSE)
+    file(GLOB_RECURSE srcs ${SG_GLOB_RECURSE})
+    list(APPEND files ${srcs})
+  endif()
+  if(SG_DIRBASE)
+    foreach(f ${files})
+      file(RELATIVE_PATH fpart "${SG_DIRBASE}" "${f}")
+      if(fpart MATCHES "^\\.\\.")
+        message(AUTHOR_WARNING "Can't detect subpath for source_group command: Group=${group} FILE=${f} DIRBASE=${SG_DIRBASE}")
+        set(fpart "")
+      else()
+        get_filename_component(fpart "${fpart}" PATH)
+        if(fpart)
+          set(fpart "/${fpart}") # add '/'
+          string(REPLACE "/" "\\" fpart "${fpart}")
+        endif()
+      endif()
+      source_group("${group}${fpart}" FILES ${f})
+    endforeach()
+  else()
+    source_group(${group} FILES ${files})
+  endif()
 endfunction()