# Created by the script cgal_create_cmake_script
# This is the CMake script for compiling a CGAL application.

cmake_minimum_required(VERSION 3.1...3.23)
project(Polygon_Demo)

if(NOT POLICY CMP0070 AND POLICY CMP0053)
  # Only set CMP0053 to OLD with CMake<3.10, otherwise there is a warning.
  cmake_policy(SET CMP0053 OLD)
endif()

if(POLICY CMP0071)
  cmake_policy(SET CMP0071 NEW)
endif()

find_package(CGAL REQUIRED OPTIONAL_COMPONENTS Qt5 Core)

find_package(Eigen3 3.1.0) #(requires 3.1.0 or greater)
include(CGAL_Eigen3_support)
if(NOT TARGET CGAL::Eigen3_support)
  message(
    STATUS
      "NOTICE: This project requires the Eigen library, and will not be compiled."
  )
  return()
endif()

find_package(Qt5 QUIET COMPONENTS Script OpenGL Svg)

if(CGAL_Qt5_FOUND AND Qt5_FOUND)
  include(${CGAL_USE_FILE})
  add_definitions(-DQT_NO_KEYWORDS)
  set(CMAKE_AUTOMOC ON)

  if(CGAL_Core_FOUND)
    add_definitions(-DCGAL_USE_CORE)
  endif()

  #--------------------------------
  # Demo: Polygon_2
  #--------------------------------
  # UI files (Qt Designer files)
  qt5_wrap_ui(DT_UI_FILES Polygon_2.ui)

  # qrc files (resources files, that contain icons, at least)
  qt5_add_resources(CGAL_Qt5_RESOURCE_FILES ./Polygon_2.qrc)

  #  add_library( CGAL SHARED IMPORTED )
  #  SET_PROPERTY(TARGET CGAL PROPERTY IMPORTED_LOCATION ${CGAL_LIBRARY} )

  # The executable itself.
  add_executable(Polygon_2 Polygon_2.cpp ${DT_UI_FILES} ${DT_RESOURCE_FILES}
                           ${CGAL_Qt5_RESOURCE_FILES} ${CGAL_Qt5_MOC_FILES})

  add_to_cached_list(CGAL_EXECUTABLE_TARGETS Polygon_2)

  target_link_libraries(Polygon_2 PRIVATE CGAL::CGAL CGAL::CGAL_Qt5
                                          CGAL::Eigen3_support Qt5::Gui)

  include(${CGAL_MODULES_DIR}/CGAL_add_test.cmake)
  cgal_add_compilation_test(Polygon_2)
else()

  message(
    STATUS
      "NOTICE: This demo requires CGAL, CGAL_Core, and Qt5, and will not be compiled."
  )

endif()