cpp-utilities/cmake/modules/WindowsResources.cmake

59 lines
2.6 KiB
CMake

# generates and adds a Windows rc file for the application/library
# also attaches the application icon if ffmpeg is available
# does nothing if not building with mingw-w64
if(NOT BASIC_PROJECT_CONFIG_DONE)
message(FATAL_ERROR "Before including the WindowsResources module, the LibraryConfig/ApplicationConfig module must be included.")
endif()
option(WINDOWS_RESOURCES_ENABLED "controls Windows resources are enabled" ON)
option(WINDOWS_ICON_ENABLED "controls Windows icon is enabled" ON)
if(MINGW AND WINDOWS_RESOURCES_ENABLED)
# find rc template
include(TemplateFinder)
find_template_file("windows.rc" CPP_UTILITIES RC_TEMPLATE_FILE)
# create Windows icon from png with ffmpeg if available
unset(WINDOWS_ICON_PATH)
unset(WINDOWS_ICON_RC_ENTRY)
if(WINDOWS_ICON_ENABLED)
find_program(FFMPEG_BIN ffmpeg avconv)
if(FFMPEG_BIN)
if(NOT PNG_ICON_PATH)
set(PNG_ICON_PATH "${CMAKE_CURRENT_SOURCE_DIR}/resources/icons/hicolor/128x128/apps/${META_PROJECT_NAME}.png")
set(USING_DEFAULT_PNG_ICON_PATH true)
endif()
if(PNG_ICON_NO_CROP)
unset(PNG_ICON_CROP)
elseif(NOT PNG_ICON_CROP)
# default cropping
set(PNG_ICON_CROP "iw-20:ih-20:10:10")
endif()
if(EXISTS "${PNG_ICON_PATH}")
set(WINDOWS_ICON_PATH "${CMAKE_CURRENT_BINARY_DIR}/resources/${META_PROJECT_NAME}.ico")
set(WINDOWS_ICON_RC_ENTRY "IDI_ICON1 ICON DISCARDABLE \"${WINDOWS_ICON_PATH}\"")
add_custom_command(
OUTPUT "${WINDOWS_ICON_PATH}"
COMMAND ${FFMPEG_BIN} -y -i "${PNG_ICON_PATH}" -vf crop=${PNG_ICON_CROP},scale=64:64 "${WINDOWS_ICON_PATH}"
)
message(STATUS "Generating Windows icon from \"${PNG_ICON_PATH}\" via ${FFMPEG_BIN}.")
elseif(NOT USING_DEFAULT_PNG_ICON_PATH)
message(FATAL_ERROR "The specified PNG_ICON_PATH \"${PNG_ICON_PATH}\" is invalid.")
endif()
unset(USING_DEFAULT_PNG_ICON_PATH)
endif(FFMPEG_BIN)
endif()
# create Windows rc file from template
configure_file(
"${RC_TEMPLATE_FILE}"
"${CMAKE_CURRENT_BINARY_DIR}/resources/windows.rc"
)
# set windres as resource compiler
list(APPEND RES_FILES "${CMAKE_CURRENT_BINARY_DIR}/resources/windows.rc")
set(CMAKE_RC_COMPILER_INIT windres)
set(CMAKE_RC_COMPILE_OBJECT "<CMAKE_RC_COMPILER> <FLAGS> -O coff <DEFINES> -i <SOURCE> -o <OBJECT>")
enable_language(RC)
endif()