CMakeLists.txt

#===================================
# Build script for RmlUi ===========
#===================================

cmake_minimum_required(VERSION 3.1)

if(APPLE)
	# This has to be before most other options so CMake properly handles the 
	# compiler variables, it MUST bebefore the project() definition
	if(IOS_PLATFORM)
		set(CMAKE_TOOLCHAIN_FILE CMake/Platform/iOS.cmake)
	endif(IOS_PLATFORM)

	option(BUILD_UNIVERSAL_BINARIES "Build universal binaries for all architectures supported" ON)
	if (NOT CMAKE_OSX_ARCHITECTURES AND BUILD_UNIVERSAL_BINARIES)
		if(IOS)
			# set the architecture for iOS 
			if (${IOS_PLATFORM} STREQUAL "OS")
				set (IOS_ARCH armv6 armv7 armv7s arm64)
				set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING  "Build architecture for iOS")
			else (${IOS_PLATFORM} STREQUAL "OS")
				set (IOS_ARCH x86_64)
				set (CMAKE_OSX_ARCHITECTURES ${IOS_ARCH} CACHE STRING  "Build architecture for iOS Simulator")
			endif (${IOS_PLATFORM} STREQUAL "OS")

		else(IOS)
			# set the architectures for OS X
			set (OSXI_ARCH x86_64)
			set (CMAKE_OSX_ARCHITECTURES ${OSXI_ARCH} CACHE STRING  "Build architecture for OS X universal binaries")
		endif(IOS)
	endif (NOT CMAKE_OSX_ARCHITECTURES AND BUILD_UNIVERSAL_BINARIES)
endif(APPLE)

if(COMMAND cmake_policy)
	cmake_policy(SET CMP0015 NEW)
endif(COMMAND cmake_policy)

# Enable the use of MACOSX_RPATH by default for CMake v3.0+; this effectively 
# allows plug 'n' play functionality, so to speak -- the resulting shared 
# library files can simply be copied over into the end-user's application 
# bundle or framework bundle. No mucking around with install_name_tool.
#
# 	See also: 
# cmake --help-policy cmp0042
# http://www.kitware.com/blog/home/post/510
if(POLICY CMP0042)
	cmake_policy(SET CMP0042 NEW)
endif(POLICY CMP0042)
if (POLICY CMP0072)
	cmake_policy (SET CMP0072 NEW)
endif(POLICY CMP0072)
if(POLICY CMP0074)
	cmake_policy(SET CMP0074 NEW)
endif(POLICY CMP0074)

project(RmlUi LANGUAGES C CXX VERSION 5.0)

set(RMLUI_VERSION_RELEASE false)

if(RMLUI_VERSION_RELEASE)
	set(RMLUI_VERSION_SUFFIX "")
else()
	set(RMLUI_VERSION_SUFFIX "-dev")
endif()

set(RMLUI_VERSION_SHORT ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}${RMLUI_VERSION_SUFFIX})

list(APPEND CORE_PRIVATE_DEFS RMLUI_VERSION="${RMLUI_VERSION_SHORT}")

if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
	option(BUILD_TESTING "" OFF)
	include(CTest)
	
	if(BUILD_TESTING)
		set(RMLUI_TESTS_ENABLED ON)
		set(VISUAL_TESTS_RML_DIRECTORIES "" CACHE PATH "Specify additional directories containing *.rml test documents for VisualTests. Separate multiple directories by comma.")
		set(VISUAL_TESTS_COMPARE_DIRECTORY "" CACHE PATH "Set the input directory for screenshot comparison performed by VisualTests.")
		set(VISUAL_TESTS_CAPTURE_DIRECTORY "" CACHE PATH "Set the output directory for screenshots generated by VisualTests.")
	endif()
endif()

# paths
include(GNUInstallDirs)

# Search in the 'cmake' directory for additional CMake modules.
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/CMake;${PROJECT_SOURCE_DIR}/CMake/Modules)

#===================================
# Environment tests ================
#===================================

include(TestForANSIForScope)
include(TestForANSIStreamHeaders)
include(TestForSTDNamespace)

#===================================
# Provide hints as to where depends=
# might be found                   =
#===================================

if(NOT DEFINED ENV{FREETYPE_DIR})
	set(ENV{FREETYPE_DIR} "${PROJECT_SOURCE_DIR}/Dependencies")
endif()

if(NOT DEFINED ENV{LUA_DIR})
	set(ENV{LUA_DIR} "${PROJECT_SOURCE_DIR}/Dependencies")
endif()

if(NOT DEFINED ENV{SDL2DIR})
	set(ENV{SDL2DIR} "${PROJECT_SOURCE_DIR}/Dependencies")
endif()

if(NOT DEFINED ENV{SDL2_IMAGE_DIR})
	set(ENV{SDL2_IMAGE_DIR} "${PROJECT_SOURCE_DIR}/Dependencies")
endif()

if(NOT DEFINED ENV{SFML_ROOT})
	set(ENV{SFML_ROOT} "${PROJECT_SOURCE_DIR}/Dependencies")
endif()

if(NOT DEFINED ENV{TRACY_DIR})
	set(ENV{TRACY_DIR} "${PROJECT_SOURCE_DIR}/Dependencies")
endif()

if(NOT DEFINED ENV{RLOTTIE_DIR})
	set(ENV{RLOTTIE_DIR} "${PROJECT_SOURCE_DIR}/Dependencies/rlottie")
endif()

if(NOT DEFINED ENV{LUNASVG_DIR})
	set(ENV{LUNASVG_DIR} "${PROJECT_SOURCE_DIR}/Dependencies/lunasvg")
endif()

#===================================
# Plaform specific global hacks ====
#===================================

if(APPLE)
	# Disables naked builtins from AssertMacros.h which
	# This prevents naming collisions such as those from the check()
	# function macro with LuaType::check
	add_definitions(-D__ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES=0)
endif(APPLE)

#===================================
# Build options ====================
#===================================

if(NOT CMAKE_BUILD_TYPE)
	set(CMAKE_BUILD_TYPE Release CACHE STRING
		"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
		FORCE)
endif()

if(NOT IOS)
	option(BUILD_SHARED_LIBS "Build shared (dynamic) libraries" ON)
endif(NOT IOS)

option(BUILD_LUA_BINDINGS "Build Lua bindings" OFF)

if(APPLE)
	option(BUILD_FRAMEWORK "Build Framework bundle for OSX" OFF)
endif()

option(BUILD_SAMPLES "Build samples" OFF)

set(SAMPLES_BACKEND "auto" CACHE STRING "Backend platform and renderer used for the samples.")
set_property(CACHE SAMPLES_BACKEND PROPERTY STRINGS auto Win32_GL2 X11_GL2 SDL_GL2 SDL_GL3 SDL_SDLrenderer SFML_GL2 GLFW_GL2 GLFW_GL3)

if(SAMPLES_BACKEND STREQUAL "auto")
	if(EMSCRIPTEN)
		set(SAMPLES_BACKEND SDL_GL3)
	elseif(WIN32)
		set(SAMPLES_BACKEND Win32_GL2)
	elseif(APPLE)
		set(SAMPLES_BACKEND SDL_SDLrenderer)
	else()
		set(SAMPLES_BACKEND X11_GL2)
	endif()
endif()

option(MATRIX_ROW_MAJOR "Use row-major matrices. Column-major matrices are used by default." OFF)

if(APPLE)
	if(IOS)
		if(BUILD_SHARED_LIBS)
			message(FATAL_ERROR "BUILD_SHARED_LIBS must be OFF for iOS builds.  iOS does not support shared libraries.")
		endif(BUILD_SHARED_LIBS)
	endif(IOS)

	if(BUILD_FRAMEWORK)
		if(NOT "${CMAKE_GENERATOR}" STREQUAL "Xcode")
			message(FATAL_ERROR "You should use Xcode generator with BUILD_FRAMEWORK enabled")
		endif()
		if(NOT BUILD_SHARED_LIBS)
			message(FATAL_ERROR "BUILD_SHARED_LIBS must be ON with BUILD_FRAMEWORK enabled")
		endif()
	endif()
else(APPLE)
	if(BUILD_FRAMEWORK)
		message(FATAL_ERROR "BUILD_FRAMEWORK is only supported on Mac OS X with the Xcode generator")
	endif()
endif(APPLE)

option(NO_FONT_INTERFACE_DEFAULT "Do not include the default font engine in the build. Allows building without the FreeType dependency, but a custom font engine must be created and set." OFF)
if(NO_FONT_INTERFACE_DEFAULT)
	list(APPEND CORE_PRIVATE_DEFS RMLUI_NO_FONT_INTERFACE_DEFAULT)
endif()

if(WIN32 AND BUILD_SHARED_LIBS AND BUILD_TESTING)
	message(FATAL_ERROR "-- The RmlUi testing framework cannot be built when using shared libraries on Windows. Please disable either BUILD_SHARED_LIBS or BUILD_TESTING.")
endif()

if(EMSCRIPTEN AND BUILD_SHARED_LIBS)
	message(FATAL_ERROR "-- Dynamic libraries not supported when using Emscripten. Please disable BUILD_SHARED_LIBS.")
endif()

if(NOT BUILD_SHARED_LIBS)
	list(APPEND CORE_PUBLIC_DEFS -DRMLUI_STATIC_LIB)
	message("-- Building static libraries. Make sure to #define RMLUI_STATIC_LIB before including RmlUi in your project.")
endif()

option(NO_THIRDPARTY_CONTAINERS "Only use standard library containers." OFF)
if( NO_THIRDPARTY_CONTAINERS )
	list(APPEND CORE_PUBLIC_DEFS -DRMLUI_NO_THIRDPARTY_CONTAINERS)
	message("-- No third-party containers will be used: Make sure to #define RMLUI_NO_THIRDPARTY_CONTAINERS before including RmlUi in your project.")
endif()

option(CUSTOM_CONFIGURATION "Customize RmlUi configuration files for overriding the default configuration and types." OFF)

set(CUSTOM_CONFIGURATION_FILE "" CACHE STRING "Custom configuration file to be included in place of <RmlUi/Config/Config.h>.")
if( CUSTOM_CONFIGURATION AND CUSTOM_CONFIGURATION_FILE )
	list(APPEND CORE_PUBLIC_DEFS -DRMLUI_CUSTOM_CONFIGURATION_FILE="${CUSTOM_CONFIGURATION_FILE}")
	message("-- Including ${CUSTOM_CONFIGURATION_FILE} instead of <RmlUi/Config/Config.h>")
endif ()

set(CUSTOM_INCLUDE_DIRS "" CACHE STRING "Extra include directories (use with CUSTOM_CONFIGURATION_FILE).")
if( CUSTOM_CONFIGURATION AND CUSTOM_INCLUDE_DIRS )
	include_directories(${CUSTOM_INCLUDE_DIRS})
endif ()

set(CUSTOM_LINK_LIBRARIES "" CACHE STRING "Extra link libraries (use with CUSTOM_CONFIGURATION_FILE).")

if( CUSTOM_CONFIGURATION )
	mark_as_advanced( CLEAR CUSTOM_CONFIGURATION_FILE CUSTOM_INCLUDE_DIRS CUSTOM_LINK_LIBRARIES )
else()
	mark_as_advanced( FORCE CUSTOM_CONFIGURATION_FILE CUSTOM_INCLUDE_DIRS CUSTOM_LINK_LIBRARIES )
	
	if( CUSTOM_CONFIGURATION_FILE OR CUSTOM_INCLUDE_DIRS OR CUSTOM_LINK_LIBRARIES )
		message("-- CUSTOM_CONFIGURATION disabled, but custom configuration variables are set. They will have no effect.")
	endif()
endif()

option(ENABLE_TRACY_PROFILING "Enable profiling with Tracy. Source files can be placed in Dependencies/tracy." OFF)
if( ENABLE_TRACY_PROFILING )
	find_package(Tracy REQUIRED)

	include_directories(${TRACY_INCLUDE_DIR})

	if( CMAKE_CONFIGURATION_TYPES )
		list(APPEND CMAKE_CONFIGURATION_TYPES Tracy)
		list(REMOVE_DUPLICATES CMAKE_CONFIGURATION_TYPES)
		set(CMAKE_CONFIGURATION_TYPES "${CMAKE_CONFIGURATION_TYPES}" CACHE STRING
			"Add the configurations that we need"
			FORCE)
		set(CMAKE_C_FLAGS_TRACY "${CMAKE_CXX_FLAGS_RELEASE} -DRMLUI_ENABLE_PROFILING")
		set(CMAKE_CXX_FLAGS_TRACY "${CMAKE_CXX_FLAGS_RELEASE} -DRMLUI_ENABLE_PROFILING")
		set(CMAKE_EXE_LINKER_FLAGS_TRACY "${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
		set(CMAKE_SHARED_LINKER_FLAGS_TRACY "${CMAKE_SHARED_LINKER_FLAGS_RELEASE}")
		message("-- Tracy profiling enabled in configuration 'Tracy'.")
	else()
		message("-- Tracy profiling enabled.")
		list(APPEND CORE_PUBLIC_DEFS -DRMLUI_ENABLE_PROFILING)
	endif()
elseif( CMAKE_CONFIGURATION_TYPES )
	list(REMOVE_ITEM CMAKE_CONFIGURATION_TYPES Tracy)
endif()

option(ENABLE_LOTTIE_PLUGIN "Enable plugin for Lottie animations. Requires the rlottie library." OFF)
option(ENABLE_SVG_PLUGIN "Enable plugin for SVG images. Requires the lunasvg library." OFF)

option(DISABLE_RTTI_AND_EXCEPTIONS "Build with rtti and exceptions disabled." OFF)
if(DISABLE_RTTI_AND_EXCEPTIONS)
	list(APPEND CORE_PUBLIC_DEFS -DRMLUI_USE_CUSTOM_RTTI)
	message("-- C++ RTTI and exceptions will be disabled: Make sure to #define RMLUI_USE_CUSTOM_RTTI before including RmlUi in your project.")
endif()

option(ENABLE_PRECOMPILED_HEADERS "Enable precompiled headers" ON)
set(PRECOMPILED_HEADERS_ENABLED OFF)
if (ENABLE_PRECOMPILED_HEADERS AND (CMAKE_VERSION VERSION_LESS 3.16.0))
	message("-- Could not enable precompiled headers. Need CMake version 3.16.0 or greater.")
elseif (ENABLE_PRECOMPILED_HEADERS)
	set(PRECOMPILED_HEADERS_ENABLED ON)
endif()

option(WARNINGS_AS_ERRORS "Treat compiler warnings as errors." OFF)
mark_as_advanced(WARNINGS_AS_ERRORS)

macro(add_common_target_options NAME)
	# C++ language version
	if(CMAKE_VERSION VERSION_LESS 3.8.0)
		set_target_properties(${NAME} PROPERTIES 
			CXX_STANDARD 14
			CXX_STANDARD_REQUIRED YES
		)
	else()
		target_compile_features(${NAME} PUBLIC cxx_std_14)
	endif()
	set_target_properties(${NAME} PROPERTIES CXX_EXTENSIONS OFF)
	
	# Compiler warnings
	if(CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_ID MATCHES "GNU")
		target_compile_options(${NAME} PRIVATE -Wall -pedantic -Wextra)
		
		if(WARNINGS_AS_ERRORS)
			target_compile_options(${NAME} PRIVATE -Werror)
		endif()
	elseif(MSVC)
		target_compile_options(${NAME} PRIVATE /MP /W4 /w44062 /permissive-)
		target_compile_definitions(${NAME} PRIVATE _CRT_SECURE_NO_WARNINGS)
		
		if(WARNINGS_AS_ERRORS)
			target_compile_options(${NAME} PRIVATE /WX)
		endif()
	endif()
endmacro()

#===================================
# Setup paths ======================
#===================================

include_directories(
	${PROJECT_SOURCE_DIR}/Include
)

# Include list of source files
include(FileList)

#===================================
# Find dependencies ================
#===================================

# FreeType
if(NOT NO_FONT_INTERFACE_DEFAULT)
	if(EMSCRIPTEN)
		set(EMSCRIPTEN_FLAGS "${EMSCRIPTEN_FLAGS} -sUSE_FREETYPE=1")
	else()
		find_package(Freetype REQUIRED)
		if(MSVC AND FREETYPE_VERSION_STRING STREQUAL "2.11.0")
			message(WARNING "You are using FreeType version 2.11.0 which introduced an issue that causes a crash on startup on some of the samples. Please avoid this version specifically.")
		endif()
		
		list(APPEND CORE_LINK_LIBS ${FREETYPE_LIBRARIES})
		list(APPEND CORE_INCLUDE_DIRS ${FREETYPE_INCLUDE_DIRS})
	endif()
endif()

# Lua
if(BUILD_LUA_BINDINGS)
	find_package(Lua REQUIRED)
	list(APPEND LUA_BINDINGS_INCLUDE_DIRS ${LUA_INCLUDE_DIR})
	list(APPEND LUA_BINDINGS_LINK_LIBS ${LUA_LIBRARIES})
endif()

# rlottie
if( ENABLE_LOTTIE_PLUGIN )
	# Try to find the rlottie library.
	if(NOT DEFINED rlottie_DIR)
		set(rlottie_DIR $ENV{RLOTTIE_DIR})
	endif()

	list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/Dependencies/rlottie/build)
	find_package(rlottie CONFIG)
	find_path(rlottie_INCLUDE_DIR rlottie.h HINTS ${rlottie_DIR} $ENV{rlottie_DIR} PATH_SUFFIXES inc rlottie/inc )
	
	if(rlottie_FOUND AND rlottie_INCLUDE_DIR)
		message("-- Can Lottie plugin be added to RmlCore - yes - rlottie library found")
		
		list(APPEND CORE_LINK_LIBS rlottie::rlottie)
		list(APPEND CORE_INCLUDE_DIRS ${rlottie_INCLUDE_DIR})
		list(APPEND CORE_PRIVATE_DEFS RMLUI_ENABLE_LOTTIE_PLUGIN)
		
		list(APPEND Core_HDR_FILES ${Lottie_HDR_FILES})
		list(APPEND Core_PUB_HDR_FILES ${Lottie_PUB_HDR_FILES})
		list(APPEND Core_SRC_FILES ${Lottie_SRC_FILES})
	else()
		if(rlottie_FOUND)
			message(FATAL_ERROR "-- Can Lottie plugin be added to RmlCore - no - rlottie library found - rlottie include directory not found")
		elseif(rlottie_INCLUDE_DIR)
			message(FATAL_ERROR "-- Can Lottie plugin be added to RmlCore - no - rlottie library not found - rlottie include directory found at ${rlottie_INCLUDE_DIR}")
		else()
			message(FATAL_ERROR "-- Can Lottie plugin be added to RmlCore - no - rlottie not found")
		endif()
	endif()
endif()

# lunasvg
if( ENABLE_SVG_PLUGIN )
	if(NOT DEFINED LUNASVG_DIR)
		set(LUNASVG_DIR $ENV{LUNASVG_DIR})
	endif()
	
	message("-- Can SVG plugin be enabled - looking for lunasvg library")

	find_package(lunasvg REQUIRED)
	
	list(APPEND CORE_LINK_LIBS ${LUNASVG_LIBRARIES})
	list(APPEND CORE_INCLUDE_DIRS ${LUNASVG_INCLUDE_DIR})
	list(APPEND CORE_PRIVATE_DEFS RMLUI_ENABLE_SVG_PLUGIN)
	
	list(APPEND Core_HDR_FILES ${SVG_HDR_FILES})
	list(APPEND Core_PUB_HDR_FILES ${SVG_PUB_HDR_FILES})
	list(APPEND Core_SRC_FILES ${SVG_SRC_FILES})

	message("-- Can SVG plugin be enabled - yes - lunasvg library found")
endif()


if(NOT BUILD_FRAMEWORK)
#===================================
# Build libraries ==================
#===================================

set(LIBRARIES Core Debugger)

foreach(library ${LIBRARIES})
	set(NAME Rml${library})

	add_library(${NAME}
		${${library}_HDR_FILES}
		${${library}_PUB_HDR_FILES}
		${MASTER_${library}_PUB_HDR_FILES}
		${${library}_SRC_FILES}
	)

	set_target_properties(${NAME} PROPERTIES
	   VERSION ${PROJECT_VERSION}
	   SOVERSION ${PROJECT_VERSION_MAJOR}
	)
	
	add_common_target_options(${NAME})

	install(TARGETS ${NAME}
		EXPORT RmlUiTargets
		LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
		ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
		RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
	)

	set(RMLUI_EXPORTED_TARGETS ${RMLUI_EXPORTED_TARGETS} ${NAME})
endforeach(library)

if( CUSTOM_CONFIGURATION )
	foreach(library ${CUSTOM_LINK_LIBRARIES})
		install(TARGETS ${library}
			EXPORT RmlUiTargets
			LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
			ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
			RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
		)
		set(RMLUI_EXPORTED_TARGETS ${RMLUI_EXPORTED_TARGETS} ${library})
	endforeach(library ${CUSTOM_LINK_LIBRARIES})
endif()

if( MATRIX_ROW_MAJOR )
	list(APPEND CORE_PUBLIC_DEFS -DRMLUI_MATRIX_ROW_MAJOR)
endif ()
if( CUSTOM_CONFIGURATION AND CUSTOM_LINK_LIBRARIES )
	target_link_libraries(RmlCore PUBLIC ${CUSTOM_LINK_LIBRARIES})
endif ()

if (PRECOMPILED_HEADERS_ENABLED)
	target_precompile_headers(RmlCore PRIVATE ${PROJECT_SOURCE_DIR}/Source/Core/precompiled.h)
endif()


else(NOT BUILD_FRAMEWORK)
	#===================================
	# Build combined Framework =========
	#===================================

	set(NAME RmlUi)

	set(MASTER_PUB_HDR_FILES
		${MASTER_Core_PUB_HDR_FILES}
		${MASTER_Debugger_PUB_HDR_FILES}
	)

	add_library(${NAME}
		${Core_HDR_FILES}
		${MASTER_Core_PUB_HDR_FILES}
		${Core_PUB_HDR_FILES}
		${Core_SRC_FILES}
		${Debugger_HDR_FILES}
		${MASTER_Debugger_PUB_HDR_FILES}
		${Debugger_PUB_HDR_FILES}
		${Debugger_SRC_FILES}
	)

	set_target_properties(${NAME} PROPERTIES
		VERSION ${PROJECT_VERSION}
		SOVERSION ${PROJECT_VERSION_MAJOR}
	)

	set_property(SOURCE ${MASTER_PUB_HDR_FILES}
		PROPERTY MACOSX_PACKAGE_LOCATION Headers
	)
	set_property(SOURCE ${Core_PUB_HDR_FILES}
		PROPERTY MACOSX_PACKAGE_LOCATION Headers/Core
	)
	set_property(SOURCE ${Debugger_PUB_HDR_FILES}
		PROPERTY MACOSX_PACKAGE_LOCATION Headers/Debugger
	)
	set_target_properties(${NAME} PROPERTIES
		FRAMEWORK TRUE
		FRAMEWORK_VERSION ${PROJECT_VERSION}
		MACOSX_FRAMEWORK_IDENTIFIER com.rmlui.${NAME}
		MACOSX_FRAMEWORK_SHORT_VERSION_STRING ${RMLUI_VERSION_SHORT}
		MACOSX_FRAMEWORK_BUNDLE_VERSION ${PROJECT_VERSION}
		XCODE_ATTRIBUTE_INSTALL_PATH "@rpath"
		PUBLIC_HEADER ${MASTER_PUB_HDR_FILES}
	)

	install(TARGETS ${NAME}
		EXPORT RmlUiTargets
		LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
		ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
		RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
		FRAMEWORK DESTINATION Library/Frameworks
	)

	set(RMLUI_EXPORTED_TARGETS ${RMLUI_EXPORTED_TARGETS} ${NAME})
endif(NOT BUILD_FRAMEWORK)


# Build Lua bindings
if(BUILD_LUA_BINDINGS)
	set(NAME RmlLua)

	add_library(${NAME} ${Lua_SRC_FILES}
		${Lua_HDR_FILES}
		${Lua_PUB_HDR_FILES}
	)

	set_target_properties(${NAME} PROPERTIES
	   VERSION ${PROJECT_VERSION}
	   SOVERSION ${PROJECT_VERSION_MAJOR}
	)
	
	add_common_target_options(${NAME})

	install(TARGETS ${NAME}
		EXPORT RmlUiTargets
		LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
		ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
		RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
	)
	
	set(RMLUI_EXPORTED_TARGETS ${RMLUI_EXPORTED_TARGETS} ${NAME})
endif()

if(DISABLE_RTTI_AND_EXCEPTIONS)
	if( CMAKE_COMPILER_IS_GNUCXX )
		add_definitions( -fno-rtti -fno-exceptions )
	elseif( MSVC )
		add_definitions( -D_HAS_EXCEPTIONS=0 /GR- )
		if(CMAKE_CXX_FLAGS MATCHES "/EHsc ")
			string(REPLACE "/EHsc" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
			message(STATUS "CMAKE_CXX_FLAGS matches /EHsc before end of string replaced...")
		endif()

		if(CMAKE_CXX_FLAGS MATCHES "/EHsc$")
			string(REPLACE "/EHsc" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
			message(STATUS "CMAKE_CXX_FLAGS matches /EHsc at end of string replaced...")
		endif()
	else()
		message(STATUS "Could not create build configuration without rtti and exceptions...")
	endif()
endif()


#===================================
# Link libraries ===================
#===================================

if(NOT BUILD_FRAMEWORK)
	target_include_directories(RmlCore PRIVATE ${CORE_INCLUDE_DIRS})
	target_include_directories(RmlCore INTERFACE $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/Include> $<INSTALL_INTERFACE:include>)
	target_link_libraries(RmlCore PRIVATE ${CORE_LINK_LIBS})
	target_link_libraries(RmlDebugger RmlCore)
	target_compile_definitions(RmlCore PRIVATE ${CORE_PRIVATE_DEFS})
	target_compile_definitions(RmlCore PUBLIC ${CORE_PUBLIC_DEFS})
else()
	target_include_directories(RmlUi PRIVATE ${CORE_INCLUDE_DIRS})
	target_link_libraries(RmlUi PRIVATE ${CORE_LINK_LIBS})
	target_compile_definitions(RmlUi PRIVATE ${CORE_PRIVATE_DEFS})
	target_compile_definitions(RmlUi PUBLIC ${CORE_PUBLIC_DEFS})
endif()

if(BUILD_LUA_BINDINGS)
	if(NOT BUILD_FRAMEWORK)
		target_link_libraries(RmlLua RmlCore ${LUA_BINDINGS_LINK_LIBS})
		target_include_directories(RmlLua PUBLIC ${LUA_BINDINGS_INCLUDE_DIRS})
	else()
		target_link_libraries(RmlUi ${LUA_BINDINGS_LINK_LIBS})
		target_include_directories(RmlUi PUBLIC ${LUA_BINDINGS_INCLUDE_DIRS})
	endif()
endif()


#===================================
# Build samples ====================
#===================================

# Build and link the samples
macro(bl_sample NAME)
	if (WIN32)
		add_executable(${NAME} WIN32 ${${NAME}_SRC_FILES} ${${NAME}_HDR_FILES} )
	elseif(APPLE)
		add_executable(${NAME} MACOSX_BUNDLE ${${NAME}_SRC_FILES} ${${NAME}_HDR_FILES} )

		# The first rpath is to the proper location where the framework/library SHOULD be, the second is to the location actually seen
		# in the build environment
		if(BUILD_FRAMEWORK)
			set_target_properties(${NAME} PROPERTIES LINK_FLAGS "-rpath @executable_path/../Frameworks")
		else()
			set_target_properties(${NAME} PROPERTIES LINK_FLAGS "-rpath @executable_path/../lib")
		endif()
	else()
		add_executable(${NAME} ${${NAME}_SRC_FILES} ${${NAME}_HDR_FILES} )
	endif()
	
	add_common_target_options(${NAME})

	target_link_libraries(${NAME} ${ARGN})
endmacro()

# Build shell
if(BUILD_SAMPLES OR BUILD_TESTING)
	message("-- Adding shell with '${SAMPLES_BACKEND}' backend.")
	
	include(SampleFileList)
	include(BackendFileList)
	
	if(NOT BUILD_FRAMEWORK)
		set(sample_LIBRARIES
			shell
			RmlCore
			RmlDebugger
		)
	else()
		set(sample_LIBRARIES
			shell
			RmlUi
		)
	endif()

	set(SAMPLES_DIR opt/RmlUi/Samples CACHE PATH "Path to samples directory.")
	if(WIN32)
		mark_as_advanced(SAMPLES_DIR)
	endif()
	

	set(BACKEND_SRC_FILES "${${SAMPLES_BACKEND}_SRC_FILES}")
	set(BACKEND_HDR_FILES "${${SAMPLES_BACKEND}_HDR_FILES}")
	
	if("${BACKEND_SRC_FILES}" STREQUAL "" OR "${BACKEND_HDR_FILES}" STREQUAL "")
		message(FATAL_ERROR "Unknown samples backend '${SAMPLES_BACKEND}'.")
	endif()
	
	list(APPEND shell_SRC_FILES ${BACKEND_SRC_FILES})
	list(APPEND shell_HDR_FILES ${BACKEND_HDR_FILES} ${BACKEND_COMMON_HDR_FILES})
	
	add_library(shell STATIC ${shell_SRC_FILES} ${shell_HDR_FILES})
	
	target_include_directories(shell PUBLIC
		${PROJECT_SOURCE_DIR}/Backends
		${PROJECT_SOURCE_DIR}/Samples/shell/include
	)
	
	add_common_target_options(shell)
	target_link_libraries(shell PUBLIC RmlCore RmlDebugger)
	
	# Add OS dependencies.
	if (WIN32)
		target_link_libraries(shell PRIVATE shlwapi imm32)
	elseif(APPLE)
		target_link_libraries(shell PRIVATE "-framework Cocoa")
	elseif(UNIX AND NOT APPLE AND NOT EMSCRIPTEN)
		find_package(X11)
		if (X11_FOUND)
			message("-- Found X11 library.")
			target_link_libraries(shell PRIVATE ${X11_LIBRARIES})
			# Platform_X11 uses Xkb if possible instead of XGetKeyboardMapping for performance.
			if(X11_Xkb_FOUND)
				FIND_PACKAGE_MESSAGE(X11 "Found X11 KBlib: ${X11_X11_LIB}" "[${X11_X11_LIB}][${X11_XkbINCLUDE_DIR}]")
				target_compile_definitions(shell PRIVATE HAS_X11XKBLIB)
			endif()
		endif()
	endif()
	
	# Add platform dependencies.
	if(SAMPLES_BACKEND MATCHES "^X11")		
		if(NOT X11_FOUND)
			message(FATAL_ERROR "X11 not found or not supported on this platform, select a different sample backend.")
		endif()
	endif()
	
	if(SAMPLES_BACKEND MATCHES "^SDL")
		message("-- Looking for SDL2 library for samples backend.")
		if(EMSCRIPTEN)
			set(EMSCRIPTEN_FLAGS "${EMSCRIPTEN_FLAGS} -sUSE_SDL=2 -sUSE_SDL_IMAGE=2 -sSDL2_IMAGE_FORMATS='[tga]'")
		else()
			find_package(SDL2 REQUIRED)
			find_package(SDL2_image REQUIRED)
			
			if(NOT SDL2_FOUND)
				message(FATAL_ERROR "SDL2 not found")
			elseif(NOT SDL2_IMAGE_FOUND)
				message(FATAL_ERROR "SDL2_image not found")
			endif()
			
			if(SAMPLES_BACKEND STREQUAL "SDL_GL2")
				find_package(GLEW REQUIRED)
				if(NOT GLEW_FOUND)
					message(FATAL_ERROR "GLEW not found")
				endif()
			endif()
			
			# Check version requirement for the SDL renderer.
			if(SAMPLES_BACKEND STREQUAL "SDL_SDLrenderer" AND "${SDL2_VERSION}" VERSION_LESS "2.0.20")
				message(FATAL_ERROR "SDL2 native renderer backend (${SAMPLES_BACKEND}) requires SDL 2.0.20 (found ${SDL2_VERSION}).")
			endif()
			
			target_include_directories(shell PRIVATE ${SDL2_INCLUDE_DIR} ${SDL2_IMAGE_INCLUDE_DIR} ${GLEW_INCLUDE_DIR})
			target_link_libraries(shell PRIVATE ${SDL2_LIBRARY} ${SDL2_IMAGE_LIBRARY} ${GLEW_LIBRARIES})
		endif()
	endif()
	
	if(SAMPLES_BACKEND MATCHES "^SFML")
		message("-- Looking for SFML 2.x library for samples backend.")
		if (WIN32)
			find_package(SFML 2 REQUIRED COMPONENTS graphics window system main)
		else()
			find_package(SFML 2 REQUIRED COMPONENTS graphics window system)
		endif()
		target_include_directories(shell PRIVATE ${SFML_INCLUDE_DIR})
		target_link_libraries(shell PRIVATE ${SFML_LIBRARIES})
	endif()
	
	if(SAMPLES_BACKEND MATCHES "^GLFW")
		message("-- Looking for GLFW3 library for samples backend.")
		find_package(glfw3 3.3 CONFIG REQUIRED)
		target_link_libraries(shell PRIVATE glfw)
		message("-- Found GLFW version ${glfw3_VERSION}.")
	endif()
	
	# Add renderer dependencies.
	if(SAMPLES_BACKEND MATCHES "GL2$")
		message("-- Adding OpenGL 2 renderer backend.")
		find_package(OpenGL REQUIRED)
		target_include_directories(shell PRIVATE ${OPENGL_INCLUDE_DIR})
		target_link_libraries(shell PRIVATE ${OPENGL_LIBRARIES})
		target_compile_definitions(shell PRIVATE RMLUI_RENDERER_GL2)
		if(APPLE)
			target_compile_definitions(shell PRIVATE GL_SILENCE_DEPRECATION)
		endif()
	endif()
	
	if(SAMPLES_BACKEND MATCHES "GL3$")
		message("-- Adding OpenGL 3 renderer backend.")
		if(EMSCRIPTEN)
			set(EMSCRIPTEN_EXE_FLAGS "${EMSCRIPTEN_EXE_FLAGS} -sMAX_WEBGL_VERSION=2")
		else()
			find_package(OpenGL REQUIRED)
			target_include_directories(shell PRIVATE ${OPENGL_INCLUDE_DIR})
			target_link_libraries(shell PRIVATE ${OPENGL_LIBRARIES} ${CMAKE_DL_LIBS})
			target_compile_definitions(shell PRIVATE RMLUI_RENDERER_GL3)
			if(APPLE)
				target_compile_definitions(shell PRIVATE GL_SILENCE_DEPRECATION)
			endif()
		endif()
	endif()
endif()


if(BUILD_SAMPLES)
	set(samples treeview customlog drag loaddocument transform bitmapfont animation benchmark demo databinding)
	set(tutorials template datagrid datagrid_tree drag)

	if(ENABLE_LOTTIE_PLUGIN)
		list(APPEND samples "lottie")
	endif()
	if(ENABLE_SVG_PLUGIN)
		list(APPEND samples "svg")
	endif()

	# Build and install the basic samples
	foreach(sample ${samples})
		bl_sample(${sample} ${sample_LIBRARIES})

		# The samples always set this as their current working directory
		install(DIRECTORY DESTINATION ${SAMPLES_DIR}/basic/${sample})
		install(TARGETS ${sample} 
			RUNTIME DESTINATION ${SAMPLES_DIR}/${sample}
			BUNDLE DESTINATION ${SAMPLES_DIR})
	endforeach()

	# Build and install the tutorials
	foreach(tutorial ${tutorials})
		set(tutorial_fullname tutorial_${tutorial})
		bl_sample(${tutorial_fullname} ${sample_LIBRARIES})
		
		# The tutorials always set this as their current working directory
		install(DIRECTORY DESTINATION ${SAMPLES_DIR}/tutorial/${tutorial})
		install(TARGETS ${tutorial_fullname}
			RUNTIME DESTINATION ${SAMPLES_DIR}/${tutorial}
			BUNDLE DESTINATION ${SAMPLES_DIR})
	endforeach()

	# Build and install invaders sample
	bl_sample(invaders ${sample_LIBRARIES})
	install(DIRECTORY DESTINATION ${SAMPLES_DIR}/invaders)
	install(TARGETS invaders 
		RUNTIME DESTINATION ${SAMPLES_DIR}/invaders
		BUNDLE DESTINATION ${SAMPLES_DIR})

	if(BUILD_LUA_BINDINGS)
		bl_sample(luainvaders RmlLua ${sample_LIBRARIES} ${LUA_BINDINGS_LINK_LIBS})
		install(DIRECTORY DESTINATION ${SAMPLES_DIR}/luainvaders)
		install(TARGETS luainvaders 
			RUNTIME DESTINATION ${SAMPLES_DIR}/luainvaders
			BUNDLE DESTINATION ${SAMPLES_DIR})
	endif()
	
	# Add assets to emscripten binaries
	if(EMSCRIPTEN)
		message("-- Preloading emscipten sample assets")
		
		set(COMMON_ASSET_FOLDER "Samples/assets/")
		set(EMSCRIPTEN_EXE_FLAGS "${EMSCRIPTEN_EXE_FLAGS} --preload-file ${CMAKE_CURRENT_SOURCE_DIR}/${COMMON_ASSET_FOLDER}@/${COMMON_ASSET_FOLDER}")

		foreach(sample ${samples})
			set(SAMPLE_DATA_FOLDER "Samples/basic/${sample}/data/")
			set(ABS_SAMPLE_DATA_FOLDER "${CMAKE_CURRENT_SOURCE_DIR}/${SAMPLE_DATA_FOLDER}")
			if(EXISTS ${ABS_SAMPLE_DATA_FOLDER})
				target_link_libraries(${sample} "--preload-file ${ABS_SAMPLE_DATA_FOLDER}@/${SAMPLE_DATA_FOLDER}")
			endif()
		endforeach()
		
		foreach(tutorial ${tutorials})
			set(TUTORIAL_DATA_FOLDER "Samples/tutorial/${tutorial}/data/")
			set(ABS_TUTORIAL_DATA_FOLDER "${CMAKE_CURRENT_SOURCE_DIR}/${TUTORIAL_DATA_FOLDER}")
			if(EXISTS ${ABS_TUTORIAL_DATA_FOLDER})
				target_link_libraries("tutorial_${tutorial}" "--preload-file ${ABS_TUTORIAL_DATA_FOLDER}@/${TUTORIAL_DATA_FOLDER}")
			endif()
		endforeach()
		
		set(INVADER_DATA_FOLDER "Samples/invaders/data/")
		target_link_libraries(invaders "-sALLOW_MEMORY_GROWTH --preload-file ${CMAKE_CURRENT_SOURCE_DIR}/${INVADER_DATA_FOLDER}@/${INVADER_DATA_FOLDER}")
	endif()
endif()

#===================================
# Add global options ===============
#===================================

if(EMSCRIPTEN)
	# Enables Asyncify which we only need since the backend doesn't control the main loop. This enables us to yield to the browser during the backend call to
	# Backend::ProcessEvents(). Asyncify results in larger and slower code, users are instead encouraged to use 'emscripten_set_main_loop()' and family.
	set(EMSCRIPTEN_EXE_FLAGS "${EMSCRIPTEN_EXE_FLAGS} -sASYNCIFY")
	
	message(STATUS "Compiling for Emscripten.\n\t- Flags:${EMSCRIPTEN_FLAGS}\n\t- ExeFlags:${EMSCRIPTEN_EXE_FLAGS}")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EMSCRIPTEN_FLAGS}")
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${EMSCRIPTEN_FLAGS}")
	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${EMSCRIPTEN_FLAGS} ${EMSCRIPTEN_EXE_FLAGS}")
	set(CMAKE_EXECUTABLE_SUFFIX .html)
endif()

#===================================
# Add tests ========================
#===================================

if(RMLUI_TESTS_ENABLED)
	add_subdirectory(Tests)
endif()

#===================================
# Installation =====================
#===================================

if(BUILD_LUA_BINDINGS)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Include/RmlUi
			DESTINATION include
	)
else()
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Include/RmlUi
			DESTINATION include
			PATTERN "Lua" EXCLUDE
	)
endif()

if(BUILD_SAMPLES)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/assets
			DESTINATION ${SAMPLES_DIR}
	)

	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/tutorial/template/data
			DESTINATION ${SAMPLES_DIR}/tutorial/template
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/tutorial/datagrid/data
			DESTINATION ${SAMPLES_DIR}/tutorial/datagrid
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/tutorial/datagrid_tree/data
			DESTINATION ${SAMPLES_DIR}/tutorial/datagrid_tree
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/tutorial/drag/data
			DESTINATION ${SAMPLES_DIR}/tutorial/drag
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/animation/data
			DESTINATION ${SAMPLES_DIR}/basic/animation
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/benchmark/data
			DESTINATION ${SAMPLES_DIR}/basic/benchmark
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/bitmapfont/data
			DESTINATION ${SAMPLES_DIR}/basic/bitmapfont
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/databinding/data
			DESTINATION ${SAMPLES_DIR}/basic/databinding
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/demo/data
			DESTINATION ${SAMPLES_DIR}/basic/demo
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/transform/data
			DESTINATION ${SAMPLES_DIR}/basic/transform
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/treeview/data
			DESTINATION ${SAMPLES_DIR}/basic/treeview
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/drag/data
			DESTINATION ${SAMPLES_DIR}/basic/drag
	)
	install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/invaders/data
			DESTINATION ${SAMPLES_DIR}/invaders
	)
	
	if(TARGET lottie)
		install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/lottie/data
				DESTINATION ${SAMPLES_DIR}/basic/lottie
		)
	endif()
	if(TARGET svg)
		install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/basic/svg/data
				DESTINATION ${SAMPLES_DIR}/basic/svg
		)
	endif()

	if(BUILD_LUA_BINDINGS)
		install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/luainvaders/data 
				DESTINATION ${SAMPLES_DIR}/luainvaders
		)
		install(DIRECTORY ${PROJECT_SOURCE_DIR}/Samples/luainvaders/lua 
				DESTINATION ${SAMPLES_DIR}/luainvaders
		)
	endif()
endif()

#===================================
# Generate Config.cmake files ======
#===================================

# Try to include helper module
include(CMakePackageConfigHelpers OPTIONAL RESULT_VARIABLE PkgHelpers_AVAILABLE)

# guard against older versions of cmake which do not provide it
if(PkgHelpers_AVAILABLE)
	set (INCLUDE_INSTALL_DIR "include")
	set (LIB_INSTALL_DIR "lib")
	set (INCLUDE_DIR "${PROJECT_SOURCE_DIR}/Include")

	# generate configuration for install tree
	configure_package_config_file(${PROJECT_SOURCE_DIR}/CMake/RmlUiConfig.cmake.install.in
		${CMAKE_CURRENT_BINARY_DIR}/install/RmlUiConfig.cmake
		INSTALL_DESTINATION ${LIB_INSTALL_DIR}/RmlUi/cmake
		PATH_VARS INCLUDE_INSTALL_DIR LIB_INSTALL_DIR)
	write_basic_package_version_file(
		${CMAKE_CURRENT_BINARY_DIR}/install/RmlUiConfigVersion.cmake
		VERSION ${PROJECT_VERSION}
		COMPATIBILITY SameMajorVersion )
	install(FILES ${CMAKE_CURRENT_BINARY_DIR}/install/RmlUiConfig.cmake
		${CMAKE_CURRENT_BINARY_DIR}/install/RmlUiConfigVersion.cmake
		DESTINATION ${LIB_INSTALL_DIR}/RmlUi/cmake )
	install(EXPORT RmlUiTargets
		DESTINATION ${LIB_INSTALL_DIR}/RmlUi/cmake)

	# generate configuration for build tree
	configure_package_config_file(${PROJECT_SOURCE_DIR}/CMake/RmlUiConfig.cmake.build.in
		${CMAKE_CURRENT_BINARY_DIR}/RmlUiConfig.cmake
		INSTALL_DESTINATION ${CMAKE_CURRENT_BINARY_DIR}
		PATH_VARS INCLUDE_DIR CMAKE_CURRENT_BINARY_DIR)
	export(TARGETS ${RMLUI_EXPORTED_TARGETS}
		FILE "${CMAKE_CURRENT_BINARY_DIR}/RmlUiTargets.cmake")
	write_basic_package_version_file(
		${CMAKE_CURRENT_BINARY_DIR}/RmlUiConfigVersion.cmake
		VERSION ${PROJECT_VERSION}
		COMPATIBILITY SameMajorVersion )
	set(RmlUi_DIR "${CMAKE_CURRENT_BINARY_DIR}" CACHE PATH "The directory containing a CMake configuration file for RmlUi.")
else()
	message("If you wish to use find_package(RmlUi) in your own project to find RmlUi library"
		" please update cmake to version which provides CMakePackageConfighelpers module"
		" or write generators for RmlUiConfig.cmake by yourself.")
endif()