project (logdiag C)
cmake_minimum_required (VERSION 2.6.2)

# Default to 2.6.3 behaviour
cmake_policy (VERSION 2.6.3)

# Options
option (OPTION_NOINSTALL "Only for developers; work without installing" OFF)

if (OPTION_NOINSTALL)
	set (OPTION_NOINSTALL 1)
else (OPTION_NOINSTALL)
	set (OPTION_NOINSTALL 0)
endif (OPTION_NOINSTALL)

# Version
set (project_VERSION_MAJOR "0")
set (project_VERSION_MINOR "0")
set (project_VERSION_PATCH "1")

set (project_VERSION "${project_VERSION_MAJOR}")
set (project_VERSION "${project_VERSION}.${project_VERSION_MINOR}")
set (project_VERSION "${project_VERSION}.${project_VERSION_PATCH}")

# For custom modules
set (CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)

# Test this machine
include (CheckCSourceCompiles)

CHECK_C_SOURCE_COMPILES (
"typedef struct abc *d;
int test (d __restrict x);
int main (void) {return 0;}"
HAVE_SANE___RESTRICT)

CHECK_C_SOURCE_COMPILES (
"int test (void *restrict x);
int main (void) {return 0;}"
HAVE_RESTRICT)

# Automatic retrieval of dependencies
if (WIN32)
	set (WIN32_DEPENDS_PATH ${CMAKE_CURRENT_SOURCE_DIR}/win32-depends)
	list (APPEND CMAKE_PREFIX_PATH ${WIN32_DEPENDS_PATH})
	list (APPEND CMAKE_INCLUDE_PATH ${WIN32_DEPENDS_PATH}/lib)
	list (APPEND CMAKE_C_FLAGS "-mms-bitfields")

	add_custom_target (win32-depends COMMAND ${CMAKE_COMMAND} -P
		${CMAKE_CURRENT_SOURCE_DIR}/Win32Depends.cmake
		WORKING_DIRECTORY ${WIN32_DEPENDS_PATH})
	add_custom_target (win32-depends-clean COMMAND ${CMAKE_COMMAND} -E
		remove_directory ${WIN32_DEPENDS_PATH})
endif (WIN32)

# Generate icons
find_program (CONVERT_EXECUTABLE convert)
mark_as_advanced (CONVERT_EXECUTABLE)

if (CONVERT_EXECUTABLE AND NOT WIN32)
	set (icon_base ${CMAKE_CURRENT_SOURCE_DIR}/share/icons/hicolor)
	set (icon_svg ${icon_base}/scalable/apps/logdiag.svg)
	set (icon_size_list 16x16 32x32 48x48)

	set (icon_png_list)
	set (icon_symbolic_list)
	foreach (icon_size ${icon_size_list})
		set (icon_png_path ${icon_base}/${icon_size}/apps)
		set (icon_png ${icon_png_path}/logdiag.png)
		list (APPEND icon_png_list ${icon_png})
		set (icon_symbolic logdiag_icons_${icon_size})
		list (APPEND icon_symbolic_list ${icon_symbolic})

		add_custom_command (OUTPUT ${icon_symbolic}
			COMMAND ${CMAKE_COMMAND} -E make_directory ${icon_png_path}
			COMMAND ${CONVERT_EXECUTABLE} -background none
				-resize ${icon_size} ${icon_svg} ${icon_png}
			DEPENDS ${icon_svg} VERBATIM)
		set_source_files_properties (${icon_symbolic}
			PROPERTIES SYMBOLIC TRUE)
	endforeach (icon_size)

	set (icon_ico ${CMAKE_CURRENT_SOURCE_DIR}/share/logdiag.ico)
	add_custom_target (logdiag_icons DEPENDS ${icon_symbolic_list}
		COMMAND ${CONVERT_EXECUTABLE} ${icon_png_list} ${icon_ico}
		COMMENT "Generating logdiag.ico" VERBATIM)
endif (CONVERT_EXECUTABLE AND NOT WIN32)

# Dependencies
find_package (GTK2 2.12 REQUIRED gtk)
find_package (Lua51 REQUIRED)
find_package (JsonGlib REQUIRED)

# Localization
find_package (Gettext)
if (GETTEXT_FOUND)
	set (HAVE_GETTEXT true)
	file (GLOB project_TRANSLATIONS ${CMAKE_CURRENT_SOURCE_DIR}/po/*.po)
	GETTEXT_CREATE_TRANSLATIONS (
		${CMAKE_CURRENT_SOURCE_DIR}/po/${PROJECT_NAME}.pot
		ALL ${project_TRANSLATIONS})
endif (GETTEXT_FOUND)

# Documentation
# TODO: Add pregenerated docs to the tree
find_package (GtkDoc)
set (project_DOC_DIR "${CMAKE_CURRENT_SOURCE_DIR}/docs/reference")

# Project source files
set (liblogdiag_SOURCES
	liblogdiag/ld-marshal.c
	liblogdiag/ld-types.c
	liblogdiag/ld-undo-action.c
	liblogdiag/ld-diagram.c
	liblogdiag/ld-diagram-object.c
	liblogdiag/ld-diagram-symbol.c
	liblogdiag/ld-diagram-connection.c
	liblogdiag/ld-canvas.c
	liblogdiag/ld-library.c
	liblogdiag/ld-library-toolbar.c
	liblogdiag/ld-symbol-category.c
	liblogdiag/ld-symbol.c
	liblogdiag/ld-lua.c
	liblogdiag/ld-lua-symbol.c)
set (liblogdiag_HEADERS
	${CMAKE_CURRENT_BINARY_DIR}/config.h
	liblogdiag/liblogdiag.h
	liblogdiag/ld-marshal.h
	liblogdiag/ld-types.h
	liblogdiag/ld-undo-action.h
	liblogdiag/ld-diagram.h
	liblogdiag/ld-diagram-object.h
	liblogdiag/ld-diagram-symbol.h
	liblogdiag/ld-diagram-connection.h
	liblogdiag/ld-canvas.h
	liblogdiag/ld-library.h
	liblogdiag/ld-library-toolbar.h
	liblogdiag/ld-symbol-category.h
	liblogdiag/ld-symbol.h
	liblogdiag/ld-lua.h
	liblogdiag/ld-lua-private.h
	liblogdiag/ld-lua-symbol.h
	liblogdiag/ld-lua-symbol-private.h)

set (logdiag_TESTS
	point-array)

set (logdiag_SOURCES
	src/ld-window-main.c
	src/logdiag.c)
set (logdiag_HEADERS
	${liblogdiag_HEADERS}
	src/ld-window-main.h)

# Resource compilation for MinGW
if (MINGW)
	set (CMAKE_RC_COMPILER_INIT windres)
	enable_language (RC)
	set (CMAKE_RC_FLAGS "-O coff")
	set (CMAKE_RC_COMPILE_OBJECT
		"<CMAKE_RC_COMPILER> <FLAGS> <DEFINES> -o <OBJECT> <SOURCE>")
endif (MINGW)

if (WIN32)
	set (logdiag_SOURCES
		${logdiag_SOURCES}
		share/logdiag.rc)
endif (WIN32)

# Generate a configure file
configure_file (${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
	${CMAKE_CURRENT_BINARY_DIR}/config.h)
include_directories (${CMAKE_CURRENT_BINARY_DIR})

# Generate marshallers
find_program (GLIB_GENMARSHAL_EXECUTABLE glib-genmarshal)
if (NOT GLIB_GENMARSHAL_EXECUTABLE)
	message (FATAL_ERROR "glib-genmarshal not found")
endif (NOT GLIB_GENMARSHAL_EXECUTABLE)

function (glib_genmarshal base prefix)
	get_filename_component (base_path "${base}" PATH)
	get_filename_component (base_name "${base}" NAME)
	set (command_base ${GLIB_GENMARSHAL_EXECUTABLE}
		--prefix ${prefix} "${base_name}.list")

	# On Windows, the final makefile may contain:
	#   cd e:\abc && ...
	# That won't actually change the directory. We have to do:
	#   cd e:\abc && e: && ...
	if (WIN32 AND "${base_path}" MATCHES "^.:[/\\\\]")
		string (SUBSTRING "${base_path}" 0 2 base_drive)
		set (command_base "${base_drive}" && "${command_base}")
	endif (WIN32 AND "${base_path}" MATCHES "^.:[/\\\\]")

	# NOTE: VERBATIM would cause problems, so it is not used here
	add_custom_command (OUTPUT ${base}.c
		COMMAND ${command_base} --body   > "${base_name}.c"
		DEPENDS "${base}.list"
		WORKING_DIRECTORY "${base_path}"
		COMMENT "Generating marshallers source file")
	add_custom_command (OUTPUT ${base}.h
		COMMAND ${command_base} --header > "${base_name}.h"
		DEPENDS "${base}.list"
		WORKING_DIRECTORY "${base_path}"
		COMMENT "Generating marshallers header file")
endfunction (glib_genmarshal)

glib_genmarshal (${CMAKE_CURRENT_SOURCE_DIR}/liblogdiag/ld-marshal
	ld_marshal)

include_directories (${CMAKE_CURRENT_SOURCE_DIR})
include_directories (${GTK2_INCLUDE_DIRS}
	${JSON_GLIB_INCLUDE_DIRS} ${LUA_INCLUDE_DIR})
set (logdiag_LIBS ${GTK2_LIBRARIES}
	${JSON_GLIB_LIBRARIES} ${LUA_LIBRARIES})

# Build the library
add_library (liblogdiag STATIC ${liblogdiag_SOURCES} ${liblogdiag_HEADERS})
set_target_properties (liblogdiag PROPERTIES OUTPUT_NAME logdiag)

# Build the executable
add_executable (logdiag WIN32 ${logdiag_SOURCES} ${logdiag_HEADERS})
target_link_libraries (logdiag liblogdiag ${logdiag_LIBS})

# Testing
option (BUILD_TESTING "Build tests" OFF)

if (BUILD_TESTING)
	enable_testing ()

	foreach (name ${logdiag_TESTS})
		add_executable (test-${name} tests/${name}.c)
		target_link_libraries (test-${name} liblogdiag ${logdiag_LIBS})

		add_test (test-${name} test-${name})
	endforeach (name)
endif (BUILD_TESTING)

# Generate documentation
if (GTK_DOC_FOUND)
	GTK_DOC_RUN (WORKING_DIR ${project_DOC_DIR}
		SOURCE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/liblogdiag
		SCANGOBJ liblogdiag ${logdiag_LIBS}
		XML ${project_DOC_DIR}/xml --sgml-mode
		HTML ${project_DOC_DIR}/html)
endif (GTK_DOC_FOUND)

# Installation
install (DIRECTORY share/gui share/library
	DESTINATION share/${CMAKE_PROJECT_NAME})

if (WIN32)
	install (TARGETS logdiag DESTINATION .)
	install (DIRECTORY
		${WIN32_DEPENDS_PATH}/bin/
		DESTINATION .
		FILES_MATCHING PATTERN "*.dll")
	install (DIRECTORY
		${WIN32_DEPENDS_PATH}/etc/
		DESTINATION etc)
	install (DIRECTORY
		${WIN32_DEPENDS_PATH}/lib/glib-2.0
		${WIN32_DEPENDS_PATH}/lib/gtk-2.0
		${WIN32_DEPENDS_PATH}/lib/gdk-pixbuf-2.0
		DESTINATION lib)
	install (DIRECTORY
		${WIN32_DEPENDS_PATH}/share/locale
		${WIN32_DEPENDS_PATH}/share/themes
		DESTINATION share)
else (WIN32)
	install (TARGETS logdiag DESTINATION bin)
	install (FILES share/logdiag.desktop DESTINATION share/applications)
	install (FILES share/logdiag.xml DESTINATION share/mime/packages)
	install (DIRECTORY share/icons DESTINATION share)
	install (DIRECTORY "${project_DOC_DIR}/html/"
		DESTINATION share/gtk-doc/html/${CMAKE_PROJECT_NAME})
	install (FILES LICENSE DESTINATION share/doc/${CMAKE_PROJECT_NAME})
endif (WIN32)

# CPack
set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "Schematic editor")
set (CPACK_PACKAGE_VENDOR "Přemysl Janouch")
set (CPACK_PACKAGE_CONTACT "p.janouch@gmail.com")
set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/LICENSE")
set (CPACK_PACKAGE_VERSION_MAJOR ${project_VERSION_MAJOR})
set (CPACK_PACKAGE_VERSION_MINOR ${project_VERSION_MINOR})
set (CPACK_PACKAGE_VERSION_PATCH ${project_VERSION_PATCH})

if (WIN32)
	set (CPACK_GENERATOR "NSIS;ZIP")
else (WIN32)
	set (CPACK_GENERATOR "TGZ;ZIP")
endif (WIN32)
set (CPACK_PACKAGE_FILE_NAME
	"${PROJECT_NAME}-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}-${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}")
set (CPACK_PACKAGE_INSTALL_DIRECTORY
	"${PROJECT_NAME} ${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")
set (CPACK_NSIS_INSTALLED_ICON_NAME "logdiag.exe")
set (CPACK_NSIS_CREATE_ICONS_EXTRA
	"CreateShortCut '\$SMPROGRAMS\\\\$STARTMENU_FOLDER\\\\logdiag.lnk' '\$INSTDIR\\\\logdiag.exe'")
set (CPACK_NSIS_DELETE_ICONS_EXTRA
	"!insertmacro MUI_STARTMENU_GETFOLDER Application $SM_FOLDER
	Delete '\$SMPROGRAMS\\\\$SM_FOLDER\\\\logdiag.lnk'")

set (CPACK_SOURCE_GENERATOR "TGZ;ZIP")
set (CPACK_SOURCE_IGNORE_FILES "/.git;/build;/win32-depends;/liblogdiag/ld-marshal.[ch]")
set (CPACK_SOURCE_PACKAGE_FILE_NAME
	"${PROJECT_NAME}-${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}")

include (CPack)