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;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2022 Maxim Cournoyer <maxim.cournoyer@gmail.com>
;;; Copyright © 2020 Tobias Geerinckx-Rice <me@tobias.gr>
;;; Copyright © 2022 John Kehayias <john.kehayias@protonmail.com>
;;;
;;; This file is part of GNU Guix.
;;;
;;; GNU Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; GNU Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
(define-module (gnu packages toolkits)
#:use-module (gnu packages fontutils)
#:use-module (gnu packages gl)
#:use-module (gnu packages sdl)
#:use-module (guix gexp)
#:use-module ((guix licenses) #:prefix license:)
#:use-module (guix packages)
#:use-module (guix utils)
#:use-module (guix build-system gnu)
#:use-module (guix git-download))
(define-public imgui
(package
(name "imgui")
(version "1.87")
(source (origin
(method git-fetch)
(uri (git-reference
(url "https://github.com/ocornut/imgui")
(commit (string-append "v" version))))
(file-name (git-file-name name version))
(sha256
(base32
"10qil22s5qak3as41787iz273sibpq1bq66bakgn7yvhj5fym6hz"))
(modules '((guix build utils)))
(snippet
;; Remove bundled fonts.
'(delete-file-recursively "misc/fonts"))))
(outputs '("out" "doc"))
(build-system gnu-build-system)
(arguments
(list
#:tests? #f ;no test suite
#:modules '((guix build gnu-build-system)
(guix build utils)
(ice-9 ftw)
(srfi srfi-26))
#:phases
#~(modify-phases %standard-phases
(add-after 'unpack 'adjust-includes
(lambda _
(substitute* (find-files "." "(\\.cpp|\\.mm)$")
(("#include <SDL")
"#include <SDL2/SDL"))))
(delete 'configure)
(replace 'build
(lambda* (#:key inputs #:allow-other-keys)
;; Build main library.
(apply invoke #$(cc-for-target) "-I" (getcwd)
"-I" (search-input-directory inputs "include/freetype2")
"-g" "-O2" "-fPIC" "-shared"
"-lGL" "-lSDL2" "-lglfw"
"-o" "libimgui.so"
"imgui.cpp"
"imgui_draw.cpp"
"imgui_tables.cpp"
"imgui_widgets.cpp"
;; Include the supported backends.
"backends/imgui_impl_glfw.cpp"
"backends/imgui_impl_sdl.cpp"
"backends/imgui_impl_opengl2.cpp"
"backends/imgui_impl_opengl3.cpp"
;; Include wrappers for C++ standard library (STL) and
;; fontconfig.
(find-files "misc" "\\.cpp$"))))
(replace 'install
(lambda* (#:key outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))
(doc (assoc-ref outputs "doc"))
(header? (cut string-suffix? ".h" <>))
(imgui-headers (scandir "." header?))
(backend-headers (find-files
"backends"
"(glfw|opengl|sdl|vulkan).*\\.h$"))
(misc-headers (find-files "misc" "\\.h$")))
(install-file "libimgui.so" (string-append out "/lib"))
;; Install headers.
(for-each (lambda (f)
(install-file f (string-append out "/include/imgui")))
imgui-headers)
(for-each (lambda (f)
(install-file f (string-append
out "/include/imgui/backends")))
backend-headers)
(for-each (lambda (f)
(install-file f (string-append
out "/include/imgui/" (dirname f))))
misc-headers)
;; Install examples.
(copy-recursively
"examples" (string-append
doc "/share/imgui/examples"))))))))
(inputs (list fontconfig glfw mesa sdl2))
(home-page "https://github.com/ocornut/imgui")
(synopsis "Immediate-mode C++ GUI library with minimal dependencies")
(description "@code{dear imgui} (also know as ImGui) is a graphical user
interface library for C++. It creates optimized vertex buffers that you can
render anytime in your 3D-pipeline-enabled application. It's fast, portable,
renderer-agnostic, and self-contained, without external dependencies.
ImGui is aimed at content creation, visualization, and debugging tools as
opposed to average end-user interfaces. Hence it favors simplicity and
productivity but lacks certain features often found in higher-level libraries.
It is particularly suited to integration in game engine tooling, real-time 3D
applications, full-screen applications, and embedded platforms without
standard operating system features.")
(license license:expat)))
(define-public imgui-1.86
(package
(inherit imgui)
(name "imgui")
(version "1.86")
(source (origin
(inherit (package-source imgui))
(method git-fetch)
(uri (git-reference
(url "https://github.com/ocornut/imgui")
(commit (string-append "v" version))))
(file-name (git-file-name name version))
(sha256
(base32
"02a7b05zrka20jhzag2jb4jl624i1m456bsv69jb9zgys2p9dv1n"))))))
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