cmake_minimum_required (VERSION 3.0)

project (GazeTkProtocol)

# Versioning
set (GazeTkProtocol_VERSION_MAJOR 0)
set (GazeTkProtocol_VERSION_MINOR 1)

# configure the header of the library
configure_file (
  "${PROJECT_SOURCE_DIR}/src_cpp/Protocol.h.in"
  "${PROJECT_BINARY_DIR}/Protocol.h"
  )

# add the binary tree to the search path for include files
# so that the generated files are found
include_directories("${PROJECT_BINARY_DIR}")

#SET(CMAKE_INSTALL_PREFIX "../../" CACHE PATH "Install path prefix" FORCE INTERNAL )

# add the Google protobuf parts
find_package(Protobuf REQUIRED)
include_directories(${PROTOBUF_INCLUDE_DIRS})
include_directories(${CMAKE_CURRENT_BINARY_DIR})
set (PROTOBUF_IMPORT_DIRS specification)
PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDRS specification/basic_types.proto specification/eye_data.proto specification/gaze2d_data.proto specification/gaze3d_data.proto specification/messages.proto)

#this dummy list will make all header files appear if you use qtcreator to open the cmake project
#file(GLOB HEADER_LIST RELATIVE ${CMAKE_CURRENT_BINARY_DIR}/ *.h  )

# add the library
add_library(GazeTkProtocol STATIC src_cpp/protocol.cc ${PROTO_SRCS} ${PROTO_HDRS})
target_link_libraries(GazeTkProtocol ${PROTOBUF_LIBRARIES})

install(TARGETS GazeTkProtocol
     RUNTIME DESTINATION bin COMPONENT libraries
     LIBRARY DESTINATION lib COMPONENT libraries
     PUBLIC_HEADER DESTINATION include COMPONENT libraries
     ARCHIVE DESTINATION lib/static COMPONENT libraries)
     
install(DIRECTORY src_cpp/ DESTINATION include/GazeTkProtocol
        FILES_MATCHING PATTERN "*.h")
        
#
# Installing the header files.
# Looks a little bit complicated, the headers are generated, so we have to search
# for them. However, if we do so, the install command creates empty subdirs according
# to initial structure. By excluding them, this is prohibited. Nicer solutions welcome!
#
install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/ DESTINATION include/GazeTkProtocol
				FILES_MATCHING PATTERN "*.h"
				PATTERN "Win32" EXCLUDE
				PATTERN "GazeTkProtocol.dir" EXCLUDE
				PATTERN "Debug" EXCLUDE
				PATTERN "Release" EXCLUDE
				PATTERN "CMakeFiles" EXCLUDE
        )