cmake_minimum_required(VERSION 2.8)

# define a macro that helps defining an option
macro(sfml_set_option var default type docstring)
    if(NOT DEFINED ${var})
        set(${var} ${default})
    endif()
    set(${var} ${${var}} CACHE ${type} ${docstring} FORCE)
endmacro()

# set a default build type if none was provided
# this has to be done before the project() instruction!
sfml_set_option(CMAKE_BUILD_TYPE Release STRING "Choose the type of build (Debug or Release)")

# project name
project(SFML)

# include the configuration file
include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/Config.cmake)

# setup version numbers
set(VERSION_MAJOR 2)
set(VERSION_MINOR 1)
set(VERSION_PATCH 0)

# add the SFML header path
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/include)

# add an option for choosing the build type (shared or static)
if(NOT (SFML_OS_IOS OR SFML_OS_ANDROID))
    sfml_set_option(BUILD_SHARED_LIBS TRUE BOOL "TRUE to build SFML as shared libraries, FALSE to build it as static libraries")
else()
    if(SFML_OS_IOS)
        set(BUILD_SHARED_LIBS FALSE)
    elseif(SFML_OS_ANDROID)
        set(BUILD_SHARED_LIBS TRUE)
    endif()
endif()

# add an option for building the examples
if(NOT (SFML_OS_IOS OR SFML_OS_ANDROID))
    sfml_set_option(SFML_BUILD_EXAMPLES FALSE BOOL "TRUE to build the SFML examples, FALSE to ignore them")
else()
    set(SFML_BUILD_EXAMPLES FALSE)
endif()

# add an option for building the API documentation
sfml_set_option(SFML_BUILD_DOC FALSE BOOL "TRUE to generate the API documentation, FALSE to ignore it")

# set default CMAKE_OSX_ARCHITECTURES value to x86_64
sfml_set_option(CMAKE_OSX_ARCHITECTURES "x86_64" STRING "Build architectures for OS X")

# set default CMAKE_OSX_DEPLOYMENT_TARGET value to 10.7
sfml_set_option(CMAKE_OSX_DEPLOYMENT_TARGET "10.7" STRING "Minimum OS version to target for deployment (at runtime)")

# add an option for choosing the OpenGL implementation
sfml_set_option(SFML_OPENGL_ES ${OPENGL_ES} BOOL "TRUE to use an OpenGL ES implementation, FALSE to use a desktop OpenGL implementation")

# Mac OS X specific options
if(SFML_OS_MACOSX)
    # add an option to build frameworks instead of dylibs (release only)
    sfml_set_option(SFML_BUILD_FRAMEWORKS FALSE BOOL "TRUE to build SFML as frameworks libraries (release only), FALSE to build according to BUILD_SHARED_LIBS")

    # add an option to let the user specify a custom directory for frameworks installation (SFML, sndfile, ...)
    sfml_set_option(CMAKE_INSTALL_FRAMEWORK_PREFIX "/Library/Frameworks" STRING "Frameworks installation directory")

    # add an option to automatically install Xcode 4 templates
    sfml_set_option(SFML_INSTALL_XCODE4_TEMPLATES FALSE BOOL "TRUE to automatically install the Xcode 4 templates, FALSE to do nothing about it")
endif()

# Android options
if(SFML_OS_ANDROID)
    # force usage of the STL port
    set(ANDROID_USE_STLPORT TRUE)

    # make sure there's an EGL implementation available
    if (${ANDROID_ABI} MATCHES "armeabi" AND ${ANDROID_NATIVE_API_LEVEL} LESS 3)
        message(FATAL_ERROR "API level must be equal or greater than 3 for ARM arches")
    endif()

    if ((${ANDROID_ABI} MATCHES "x86" OR ${ANDROID_ABI} MATCHES "mips") AND ${ANDROID_NATIVE_API_LEVEL} LESS 9)
        message(FATAL_ERROR "API level must be equal or greater than 9 for x86 and MIPS arches")
    endif()

    # install everything in $NDK/sources/ because this path is appended by the NDK (convenient)
    set(CMAKE_INSTALL_PREFIX ${ANDROID_NDK}/sources/sfml)

    # we install libs in a subdirectory named after the ABI (lib/mips/*.so)
    set(LIB_SUFFIX "/${ANDROID_ABI}")

    # this is a workaround to compile sfml-activity without stlport_shared as dependency
    # we save the original compilation command line to restore it later in Macro.cmake
    set(CMAKE_CXX_CREATE_SHARED_LIBRARY_WITH_STLPORT ${CMAKE_CXX_CREATE_SHARED_LIBRARY})
    set(CMAKE_CXX_CREATE_SHARED_LIBRARY_WITHOUT_STLPORT "<CMAKE_CXX_COMPILER> <CMAKE_SHARED_LIBRARY_CXX_FLAGS> <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_CXX_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>")
endif()

# define SFML_STATIC if the build type is not set to 'shared'
if(NOT BUILD_SHARED_LIBS)
    add_definitions(-DSFML_STATIC)
endif()

# remove SL security warnings with Visual C++
if(SFML_COMPILER_MSVC)
    add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
endif()

# define SFML_OPENGL_ES if needed
if(SFML_OPENGL_ES)
    add_definitions(-DSFML_OPENGL_ES)
endif()

# define an option for choosing between static and dynamic C runtime (Windows only)
if(SFML_OS_WINDOWS)
    sfml_set_option(SFML_USE_STATIC_STD_LIBS FALSE BOOL "TRUE to statically link to the standard libraries, FALSE to use them as DLLs")

    # the following combination of flags is not valid
    if (BUILD_SHARED_LIBS AND SFML_USE_STATIC_STD_LIBS)
        message(FATAL_ERROR "BUILD_SHARED_LIBS and SFML_USE_STATIC_STD_LIBS cannot be used together")
    endif()

    # for VC++, we can apply it globally by modifying the compiler flags
    if(SFML_COMPILER_MSVC AND SFML_USE_STATIC_STD_LIBS)
        foreach(flag
                CMAKE_CXX_FLAGS CMAKE_CXX_FLAGS_DEBUG CMAKE_CXX_FLAGS_RELEASE
                CMAKE_CXX_FLAGS_MINSIZEREL CMAKE_CXX_FLAGS_RELWITHDEBINFO)
            if(${flag} MATCHES "/MD")
                string(REGEX REPLACE "/MD" "/MT" ${flag} "${${flag}}")
            endif()
        endforeach()
    endif()
endif()

# disable the rpath stuff
set(CMAKE_SKIP_BUILD_RPATH TRUE)

# setup Mac OS X stuff
if(SFML_OS_MACOSX)
    # SFML_BUILD_FRAMEWORKS needs two things :
    # first, it's available only for release
    #    (because cmake currently doesn't allow specifying a custom framework name so XXX-d is not possible)
    # secondly, it works only with BUILD_SHARED_LIBS enabled
    if(SFML_BUILD_FRAMEWORKS)
        # requirement #1
        if(NOT CMAKE_BUILD_TYPE STREQUAL "Release")
            message(FATAL_ERROR "CMAKE_BUILD_TYPE should be \"Release\" when SFML_BUILD_FRAMEWORKS is TRUE")
            return()
        endif()

        # requirement #2
        if(NOT BUILD_SHARED_LIBS)
            message(FATAL_ERROR "BUILD_SHARED_LIBS should be TRUE when SFML_BUILD_FRAMEWORKS is TRUE")
            return()
        endif()
    endif()

    # Objective-C ARC requires a 64 bit runtime.
    if(NOT CMAKE_OSX_ARCHITECTURES STREQUAL "x86_64")
        message(FATAL_ERROR "CMAKE_OSX_ARCHITECTURES should be 'x86_64' to support ARC")
        return()
    endif()

    # make sure CMAKE_OSX_DEPLOYMENT_TARGET is >= 10.7
    if (CMAKE_OSX_DEPLOYMENT_TARGET VERSION_LESS "10.7")
        message(FATAL_ERROR "CMAKE_OSX_DEPLOYMENT_TARGET (${CMAKE_OSX_DEPLOYMENT_TARGET}) should be 10.7 or better")
        return()
    endif()
endif()

if(SFML_OS_LINUX OR SFML_OS_FREEBSD)
    if(BUILD_SHARED_LIBS)
        sfml_set_option(SFML_INSTALL_PKGCONFIG_FILES FALSE BOOL "TRUE to automatically install pkg-config files so other projects can find SFML")
        if(SFML_INSTALL_PKGCONFIG_FILES)
            foreach(sfml_module IN ITEMS all system window graphics audio network)
                CONFIGURE_FILE(
                    "tools/pkg-config/sfml-${sfml_module}.pc.in"
                    "tools/pkg-config/sfml-${sfml_module}.pc"
                    @ONLY)
                INSTALL(FILES "${CMAKE_CURRENT_BINARY_DIR}/tools/pkg-config/sfml-${sfml_module}.pc"
                DESTINATION "${CMAKE_INSTALL_PREFIX}/lib${LIB_SUFFIX}/pkgconfig")
            endforeach()
        endif()
    else()
        if(SFML_INSTALL_PKGCONFIG_FILES)
            message(WARNING "No pkg-config files are provided for the static SFML libraries (SFML_INSTALL_PKGCONFIG_FILES will be ignored).")
        endif()
    endif()
endif()

# enable project folders
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
set_property(GLOBAL PROPERTY PREDEFINED_TARGETS_FOLDER "CMake")

# add the subdirectories
add_subdirectory(src/SFML)
if(SFML_BUILD_EXAMPLES)
    add_subdirectory(examples)
endif()
if(SFML_BUILD_DOC)
    add_subdirectory(doc)
endif()

# setup the install rules
if(NOT SFML_BUILD_FRAMEWORKS)
    install(DIRECTORY include
            DESTINATION .
            COMPONENT devel
            FILES_MATCHING PATTERN "*.hpp" PATTERN "*.inl")
else()
    # find only "root" headers
    file(GLOB SFML_HEADERS RELATIVE ${PROJECT_SOURCE_DIR} "include/SFML/*")

    # in fact we have to fool cmake to copy all the headers in subdirectories
    # to do that we have to add the "root" headers to the PUBLIC_HEADER
    # then we can run a post script to copy the remaining headers

    # we need a dummy file in order to compile the framework
    add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
                       COMMAND touch ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp)

    set(SFML_SOURCES ${SFML_HEADERS})
    list(APPEND SFML_SOURCES ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp)

    # create SFML.framework
    add_library(SFML ${SFML_SOURCES})

    # edit target properties
    set_target_properties(SFML PROPERTIES
                          FRAMEWORK TRUE
                          FRAMEWORK_VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
                          MACOSX_FRAMEWORK_IDENTIFIER org.sfml-dev.SFML
                          MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
                          MACOSX_FRAMEWORK_BUNDLE_VERSION ${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}
                          PUBLIC_HEADER "${SFML_HEADERS}")

    # add the remaining headers
    add_custom_command(TARGET SFML
                       POST_BUILD
                       COMMAND cp -r ${PROJECT_SOURCE_DIR}/include/SFML/* SFML.framework/Versions/${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}/Headers)

    # adapt install directory to allow distributing dylibs/frameworks in user’s frameworks/application bundle
    # NOTE : it's not required to link agains SFML.framework
    set_target_properties(SFML PROPERTIES
                          BUILD_WITH_INSTALL_RPATH 1
                          INSTALL_NAME_DIR "@executable_path/../Frameworks")

    # install rule
    install(TARGETS SFML
            FRAMEWORK DESTINATION ${CMAKE_INSTALL_FRAMEWORK_PREFIX}
            COMPONENT devel)
endif()

install(FILES license.txt DESTINATION ${INSTALL_MISC_DIR})
install(FILES readme.txt DESTINATION ${INSTALL_MISC_DIR})
if(NOT SFML_OS_ANDROID)
    install(FILES cmake/Modules/FindSFML.cmake DESTINATION ${INSTALL_MISC_DIR}/cmake/Modules)
endif()

# install 3rd-party libraries and tools
if(SFML_OS_WINDOWS)

    # install the binaries of SFML dependencies
    if(ARCH_32BITS)
        install(DIRECTORY extlibs/bin/x86/ DESTINATION bin)
        if(SFML_COMPILER_MSVC)
            install(DIRECTORY extlibs/libs-msvc/x86/ DESTINATION lib)
        else()
            install(DIRECTORY extlibs/libs-mingw/x86/ DESTINATION lib)
        endif()
    elseif(ARCH_64BITS)
        install(DIRECTORY extlibs/bin/x64/ DESTINATION bin)
        if(SFML_COMPILER_MSVC)
            install(DIRECTORY extlibs/libs-msvc/x64/ DESTINATION lib)
        else()
            install(DIRECTORY extlibs/libs-mingw/x64/ DESTINATION lib)
        endif()
    endif()

elseif(SFML_OS_MACOSX)

    # install the non-standard frameworks SFML depends on
    install(DIRECTORY extlibs/libs-osx/Frameworks/sndfile.framework DESTINATION ${CMAKE_INSTALL_FRAMEWORK_PREFIX})
    install(DIRECTORY extlibs/libs-osx/Frameworks/freetype.framework DESTINATION ${CMAKE_INSTALL_FRAMEWORK_PREFIX})

    # install the Xcode templates if requested
    if(SFML_INSTALL_XCODE4_TEMPLATES)
        install(DIRECTORY tools/xcode/templates/SFML
                DESTINATION /Library/Developer/Xcode/Templates
                PATTERN "*.in" EXCLUDE)
        configure_file(
                    "tools/xcode/templates/SFML/SFML Compiler.xctemplate/TemplateInfo.plist.in"
                    "/Library/Developer/Xcode/Templates/SFML/SFML Compiler.xctemplate/TemplateInfo.plist"
                    @ONLY)
    endif()

elseif(SFML_OS_IOS)

    # fix CMake install rules broken for iOS (see http://public.kitware.com/Bug/view.php?id=12506)
    if(SFML_OS_IOS)
        install(DIRECTORY "${CMAKE_BINARY_DIR}/lib/\$ENV{CONFIGURATION}/" DESTINATION lib${LIB_SUFFIX})
    endif()

    # since the iOS libraries are built as static, we must install the SFML dependencies
    # too so that the end user can easily link them to its final application
    install(FILES extlibs/libs-ios/libfreetype.a extlibs/libs-ios/libjpeg.a DESTINATION lib)

elseif(SFML_OS_ANDROID)

    install(DIRECTORY extlibs/android/extlibs/lib/${ANDROID_ABI} DESTINATION extlibs/lib)
    install(FILES extlibs/android/extlibs/Android.mk DESTINATION extlibs)
    install(FILES src/SFML/Android.mk DESTINATION .)

endif()