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#=============================================================================
# Copyright 2015 Luís Pereira <luis.artur.pereira@gmail.com>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#=============================================================================
# lxqt_create_portable_headers(<portable_headers>
# HEADER_NAMES <CamelCaseName> [<CamelCaseName1> [...]]
# [OUTPUT_DIR <output_dir>]
# )
#
# Creates portable headers; e.g.:
# Creates XdgAction from xdgaction.h
# XdgAction contents:
# #include "xdgaction.h"
#
# Output:
# portable_headers File locations of the created headers
#
# Input:
# HEADER_NAMES Header CamelCaseNames. An CamelCaseName header will be created
# that includes camelcasename.h file
#
# OUTPUT_DIR Specifies where the files will be created. Defaults to
# ``${CMAKE_CURRENT_BINARY_DIR}``. If the value is an relative path, it
# will be appended to ``${CMAKE_CURRENT_BINARY_DIR}``.
#
# Use:
# set(PUBLIC_CLASSES MyClass YourClass)
# lxqt_create_portable_headers(PORTABLE_HEADERS ${PUBLIC_CLASSES})
# PORTABLE_HEADER is an return value that contains the full name of the
# generated headers.
function(lxqt_create_portable_headers outfiles)
set(options)
set(oneValueArgs OUTPUT_DIR PATH_PREFIX NAME_PREFIX)
set(multiValueArgs HEADER_NAMES)
cmake_parse_arguments(USER "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
if (USER_UNPARSED_ARGUMENTS)
message(FATAL_ERROR "Unknown keywords given to lxqt_create_portable_headers(): \"${USER_UNPARSED_ARGUMENTS}\"")
endif()
if (NOT DEFINED USER_HEADER_NAMES)
message(FATAL_ERROR "Required argument HEADER_NAMES missing in lxqt_create_portable_headers() call")
else()
set(_HEADER_NAMES "${USER_HEADER_NAMES}")
endif()
if (NOT DEFINED USER_OUTPUT_DIR)
set(_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}")
else()
if (IS_ABSOLUTE "${USER_OUTPUT_DIR}")
set(_OUTPUT_DIR "${USER_OUTPUT_DIR}")
else()
set(_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/${USER_OUTPUT_DIR}")
endif()
endif()
if (NOT DEFINED USER_PATH_PREFIX)
set(_PATH_PREFIX "")
else()
set(_PATH_PREFIX "${USER_PATH_PREFIX}")
endif()
if (NOT DEFINED USER_NAME_PREFIX)
set(_NAME_PREFIX "")
else()
set(_NAME_PREFIX "${USER_NAME_PREFIX}")
endif()
set(class_list ${_HEADER_NAMES})
foreach(f ${class_list})
string(TOLOWER "${f}.h" _filename)
if ("${_PATH_PREFIX}" STREQUAL "")
file(WRITE "${_OUTPUT_DIR}/${f}"
"#include \"${_NAME_PREFIX}${_filename}\"")
else()
file(WRITE "${_OUTPUT_DIR}/${f}"
"#include \"${_PATH_PREFIX}${_NAME_PREFIX}/${_filename}\"")
endif()
list(APPEND ${outfiles} "${_OUTPUT_DIR}/${f}")
endforeach()
set(${outfiles} ${${outfiles}} PARENT_SCOPE)
endfunction()
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