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#
# A function used by the CMake build system for the Fast Light Tool Kit (FLTK).
# Originally written by Michael Surette
#
# Copyright 1998-2024 by Bill Spitzak and others.
#
# This library is free software. Distribution and use rights are outlined in
# the file "COPYING" which should have been included with this file. If this
# file is missing or damaged, see the license at:
#
# https://www.fltk.org/COPYING.php
#
# Please see the following page on how to report bugs and issues:
#
# https://www.fltk.org/bugs.php
#
################################################################################
#
# function fl_create_example - Create a test/demo (example) program
#
# Input:
#
# - NAME: program name, e.g. 'hello'
#
# - SOURCES: list of source files, separated by ';' (needs quotes)
# Sources can be:
# - .c/.cxx files, e.g. 'hello.cxx'
# - .fl (fluid) files, e.g. 'radio.fl'
# - .plist file(macOS), e.g. 'editor.plist'
# - .icns file(macOS Icon), e.g. 'checkers.icns'
# - .rc file(Windows resource file, e.g. icon definition)
#
# Order of sources doesn't matter, multiple .cxx and .fl files are
# supported, but only one .plist and one .icns file.
#
# File name (type), e.g. '.icns' matters, it is parsed internally:
# File types .fl, .plist, and .icns are treated specifically,
# all other file types are added to the target's source files.
#
# macOS specific .icns and .plist files are ignored on other platforms.
# These files must reside in the subdirectory 'mac-resources'.
#
# - LIBRARIES:
# List of libraries (CMake target names), separated by ';'. Must be
# quoted if more than one library is required, e.g. "fltk::gl;fltk::images"
#
################################################################################
function(fl_create_example NAME SOURCES LIBRARIES)
set(srcs) # source files
set(flsrcs) # fluid source (.fl) files
set(TARGET_NAME ${NAME}) # CMake target name
set(ICON_NAME) # macOS icon (max. one)
set(PLIST) # macOS .plist file(max. one)
set(ICON_PATH) # macOS icon resource path
# create macOS bundle? 0 = no, 1 = yes
if(APPLE AND NOT FLTK_BACKEND_X11)
set(MAC_BUNDLE 1)
else()
set(MAC_BUNDLE 0)
endif()
# filter input files for different handling (fluid, icon, plist, source)
foreach(src ${SOURCES})
if("${src}" MATCHES "\\.fl$")
list(APPEND flsrcs ${src})
elseif("${src}" MATCHES "\\.icns$")
set(ICON_NAME "${src}")
elseif("${src}" MATCHES "\\.plist$")
set(PLIST "${src}")
else()
list(APPEND srcs ${src})
endif("${src}" MATCHES "\\.fl$")
endforeach(src)
# generate source files from .fl files, add output to sources
if(flsrcs)
if(NOT FLTK_FLUID_EXECUTABLE)
message(STATUS "Example app \"${NAME}\" will not be built. FLUID executable not found.")
return ()
endif()
FLTK_RUN_FLUID (FLUID_SOURCES "${flsrcs}")
list(APPEND srcs ${FLUID_SOURCES})
unset(FLUID_SOURCES)
endif(flsrcs)
# set macOS (icon) resource path if applicable
if(MAC_BUNDLE AND ICON_NAME)
set(ICON_PATH "${CMAKE_CURRENT_SOURCE_DIR}/mac-resources/${ICON_NAME}")
endif(MAC_BUNDLE AND ICON_NAME)
##############################################################################
# add executable target and set properties (all platforms)
##############################################################################
if(MAC_BUNDLE)
add_executable (${TARGET_NAME} MACOSX_BUNDLE ${srcs} ${ICON_PATH})
else()
add_executable (${TARGET_NAME} WIN32 ${srcs})
endif(MAC_BUNDLE)
set_target_properties (${TARGET_NAME} PROPERTIES OUTPUT_NAME ${NAME})
target_link_libraries (${TARGET_NAME} PRIVATE ${LIBRARIES})
# make sure we're "exporting" global symbols like 'fl_disable_wayland',
# see also README.Wayland.txt and CMake policy CMP0065.
set_target_properties (${TARGET_NAME} PROPERTIES ENABLE_EXPORTS TRUE)
### *FIXME* Remove the entire 'if' block below when verified:
if(0) # This should no longer be necessary (implied by linking the libs)
# we must link all programs with Cairo if option CAIROEXT is enabled
if(FLTK_HAVE_CAIROEXT)
target_link_libraries(${TARGET_NAME} PRIVATE ${PKG_CAIRO_LIBRARIES})
endif()
if(FLTK_HAVE_CAIRO AND PKG_CAIRO_LIBRARY_DIRS)
target_link_directories(${TARGET_NAME} PRIVATE ${PKG_CAIRO_LIBRARY_DIRS})
endif()
endif() # This should no longer be necessary (implied by linking the libs)
# Search the current binary directory for header files created by CMake
# or fluid and the source folder for other headers included by test programs
target_include_directories(${TARGET_NAME} PRIVATE
${CMAKE_CURRENT_BINARY_DIR}
${CMAKE_CURRENT_SOURCE_DIR}
)
if(MAC_BUNDLE)
if(PLIST)
set_target_properties(${TARGET_NAME} PROPERTIES MACOSX_BUNDLE_INFO_PLIST
"${CMAKE_CURRENT_SOURCE_DIR}/mac-resources/${PLIST}")
endif()
string(REPLACE "_" "-" FLTK_BUNDLE_ID "org.fltk.${TARGET_NAME}")
set_target_properties(${TARGET_NAME} PROPERTIES MACOSX_BUNDLE_BUNDLE_NAME "${TARGET_NAME}")
set_target_properties(${TARGET_NAME} PROPERTIES MACOSX_BUNDLE_GUI_IDENTIFIER "${FLTK_BUNDLE_ID}")
set_target_properties(${TARGET_NAME} PROPERTIES XCODE_ATTRIBUTE_PRODUCT_BUNDLE_IDENTIFIER "${FLTK_BUNDLE_ID}")
if(ICON_NAME)
set_target_properties(${TARGET_NAME} PROPERTIES MACOSX_BUNDLE_ICON_FILE ${ICON_NAME})
set_target_properties(${TARGET_NAME} PROPERTIES RESOURCE ${ICON_PATH})
endif()
endif()
##############################################################################
# Copy macOS "bundle wrapper" (shell script) to target directory.
# The "custom command" will be executed "POST_BUILD".
##############################################################################
if(MAC_BUNDLE)
set(WRAPPER "${EXECUTABLE_OUTPUT_PATH}/${CMAKE_CFG_INTDIR}/${TARGET_NAME}")
add_custom_command(
TARGET ${TARGET_NAME} POST_BUILD
COMMAND cp ${FLTK_SOURCE_DIR}/CMake/macOS-bundle-wrapper.in ${WRAPPER}
COMMAND chmod u+x,g+x,o+x ${WRAPPER}
BYPRODUCTS ${WRAPPER}
# COMMENT "Creating macOS bundle wrapper script ${WRAPPER}"
VERBATIM
)
unset(WRAPPER)
endif(MAC_BUNDLE)
##############################################################################
# MSVC: Add fltk-shared (DLL) path to Environment 'PATH' for debugging
##############################################################################
if(MSVC AND TARGET fltk-shared)
set(DllDir "$<SHELL_PATH:$<TARGET_FILE_DIR:fltk-shared>>")
set_target_properties(${TARGET_NAME} PROPERTIES
VS_DEBUGGER_ENVIRONMENT "PATH=${DllDir};$ENV{PATH}"
)
endif()
endfunction()
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