fix: ensure extension works with the shared code base

Author: AlexyPellegrini

CMakeLists.txt

@@ -5,11 +5,18 @@ cmake_minimum_required(VERSION 3.16.3...4.0)
 # SlicerLayerDM can be built in two different ways:
 # - A 3DSlicer extension
 # - A slicer-core based python wheel
-# Using include like this enables the CMake code to be in the expected source/binary directory and add_subdirectory to work seamlessly
+# Using include like this enables the CMake code to be in the expected
+# source/binary directory and add_subdirectory to work seamlessly
 if(DEFINED SKBUILD_PROJECT_NAME)
   project(${SKBUILD_PROJECT_NAME} VERSION ${SKBUILD_PROJECT_VERSION})
   include(${CMAKE_CURRENT_SOURCE_DIR}/wheel.cmake)
 else()
   project(LayerDisplayableManager)
+
+  # disable https://cmake.org/cmake/help/latest/policy/CMP0148.html as vtkAddon may still need it
+  if(POLICY CMP0148)
+    cmake_policy(SET CMP0148 OLD)
+  endif()
+
   include(${CMAKE_CURRENT_SOURCE_DIR}/extension.cmake)
 endif()

LayerDM/Logic/extension.cmake

@@ -14,6 +14,7 @@ configure_file(
 set(${KIT}_SRCS
   vtkSlicer${MODULE_NAME}Logic.cxx
   vtkSlicer${MODULE_NAME}Logic.h
+  ${CMAKE_CURRENT_BINARY_DIR}/vtkSlicerLayerDMModuleLogicModule.h
 )
 
 set(${KIT}_TARGET_LIBRARIES
@@ -30,6 +31,12 @@ SlicerMacroBuildModuleLogic(
   TARGET_LIBRARIES ${${KIT}_TARGET_LIBRARIES}
 )
 
+include(GenerateExportHeader)
+generate_export_header(${KIT}
+  EXPORT_FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/vtkSlicerLayerDMModuleLogicModule.h
+  EXPORT_MACRO_NAME ${${KIT}_EXPORT_DIRECTIVE}
+)
+
 target_include_directories(
   ${KIT}
   PUBLIC

LayerDM/MRML/extension.cmake

@@ -16,6 +16,7 @@ set(${KIT}_SRCS
   vtkMRMLLayerDMSelectionObserver.h
   vtkMRMLLayerDMWidgetEventTranslationNode.cxx
   vtkMRMLLayerDMWidgetEventTranslationNode.h
+  ${CMAKE_CURRENT_BINARY_DIR}/vtkSlicerLayerDMModuleMRMLModule.h
 )
 
 
@@ -41,6 +42,12 @@ SlicerMacroBuildModuleMRML(
   TARGET_LIBRARIES ${${KIT}_TARGET_LIBRARIES}
 )
 
+include(GenerateExportHeader)
+generate_export_header(${KIT}
+  EXPORT_FILE_NAME ${CMAKE_CURRENT_BINARY_DIR}/vtkSlicerLayerDMModuleMRMLModule.h
+  EXPORT_MACRO_NAME ${${KIT}_EXPORT_DIRECTIVE}
+)
+
 target_compile_features(${KIT} PUBLIC cxx_std_17)
 
 target_include_directories(

LayerDM/MRMLDM/extension.cmake

@@ -75,6 +75,12 @@ target_include_directories(
   ${${KIT}_BINARY_DIR}
 )
 
+configure_file(
+    ${${KIT}_SOURCE_DIR}/vtkSlicerLayerDMModuleMRMLDisplayableManagerModule.h.in
+    ${${KIT}_BINARY_DIR}/vtkSlicerLayerDMModuleMRMLDisplayableManagerModule.h
+    COPYONLY
+)
+
 if(${KIT}_AUTOINIT)
   set_property(TARGET ${KIT}
     APPEND PROPERTY COMPILE_DEFINITIONS

LayerDM/MRMLDM/vtkSlicerLayerDMModuleMRMLDisplayableManagerModule.h.in

@@ -0,0 +1,24 @@
+///  vtkSlicerLayerDMModuleMRMLDisplayableManagerModule
+///
+/// The vtkSlicerLayerDMModuleMRMLDisplayableManagerModule captures some system differences between Unix
+/// and Windows operating systems, and enables auto init for the VTK module.
+
+#ifndef __vtkSlicerLayerDMModuleMRMLDisplayableManagerExport_h
+#define __vtkSlicerLayerDMModuleMRMLDisplayableManagerExport_h
+
+#if defined(_WIN32) && !defined(MRMLLayerDM_STATIC)
+# if defined(vtkSlicerLayerDMModuleMRMLDisplayableManager_EXPORTS)
+#  define VTK_SLICER_LAYERDM_MODULE_MRMLDISPLAYABLEMANAGER_EXPORT __declspec(dllexport)
+# else
+#  define VTK_SLICER_LAYERDM_MODULE_MRMLDISPLAYABLEMANAGER_EXPORT __declspec(dllimport)
+# endif
+#else
+# define VTK_SLICER_LAYERDM_MODULE_MRMLDISPLAYABLEMANAGER_EXPORT
+#endif
+
+#if defined(vtkSlicerLayerDMModuleMRMLDisplayableManager_AUTOINIT)
+# include <vtkAutoInit.h>
+VTK_AUTOINIT(vtkSlicerLayerDMModuleMRMLDisplayableManager)
+#endif
+
+#endif

extension.cmake

@@ -32,6 +32,7 @@ if(NOT git_code EQUAL 0)
   )
 endif()
 
+string(STRIP "${git_stdout}" git_stdout) # git output will end with a newline
 string(SUBSTRING "${git_stdout}" 1 -1 LayerDM_VERSION)
 string(REPLACE "." ";" version_components "${LayerDM_VERSION}") # this creates a list
 list(GET version_components 0 LayerDM_VERSION_MAJOR)