;;; GNU Guix --- Functional package management for GNU
;;; Copyright © 2014 John Darrington <jmd@gnu.org>
;;; Copyright © 2015 Eric Bavier <bavier@member.fsf.org>
;;;
;;; 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 fltk)
  #:use-module ((guix licenses) #:select (lgpl2.0))
  #:use-module (gnu packages)
  #:use-module (gnu packages compression)
  #:use-module (gnu packages image)
  #:use-module (gnu packages xorg)
  #:use-module (gnu packages gl)
  #:use-module (guix packages)
  #:use-module (guix download)
  #:use-module (guix build-system gnu))

(define-public fltk
  (package
    (name "fltk")
    (version "1.3.3")
    (source
     (origin
      (method url-fetch)
      (uri (string-append "http://fltk.org/pub/fltk/" version
                          "/fltk-" version "-source.tar.gz"))
      (sha256
       (base32
        "15qd7lkz5d5ynz70xhxhigpz3wns39v9xcf7ggkl0792syc8sfgq"))
      (patches (list (search-patch "fltk-shared-lib-defines.patch")))))
   (build-system gnu-build-system)
   (inputs
    `(("libjpeg" ,libjpeg-8)     ;jpeg_read_header argument error in libjpeg-9
      ("libpng" ,libpng)
      ("libx11" ,libx11)
      ("mesa" ,mesa)
      ("zlib" ,zlib)))
    (arguments
     `(#:tests? #f                      ;TODO: compile programs in "test" dir
       #:configure-flags
       (list "--enable-shared"
             (string-append "DSOFLAGS=-Wl,-rpath=" %output "/lib"))
       #:phases
       (alist-cons-before
        'configure 'patch-makeinclude
        (lambda _
          (substitute* "makeinclude.in"
            (("/bin/sh") (which "sh"))))
        (alist-cons-after
         'install 'patch-config
         ;; Provide -L flags for image libraries when querying fltk-config to
         ;; avoid propagating inputs.
         (lambda* (#:key inputs outputs #:allow-other-keys)
           (use-modules (srfi srfi-26))
           (let* ((conf (string-append (assoc-ref outputs "out")
                                      "/bin/fltk-config"))
                  (jpeg (assoc-ref inputs "libjpeg"))
                  (png  (assoc-ref inputs "libpng"))
                  (zlib (assoc-ref inputs "zlib")))
             (substitute* conf
               (("-ljpeg") (string-append "-L" jpeg "/lib -ljpeg"))
               (("-lpng") (string-append "-L" png "/lib -lpng"))
               (("-lz") (string-append "-L" zlib "/lib -lz")))))
         %standard-phases))))
    (home-page "http://www.fltk.org")
    (synopsis "3D C++ GUI library")
    (description "FLTK is a C++ GUI toolkit providing modern GUI functionality
without the bloat.  It supports 3D graphics via OpenGL and its built-in GLUT
emulation.  FLTK is designed to be small and modular enough to be statically
linked, but works fine as a shared library.  FLTK also includes an excellent
UI builder called FLUID that can be used to create applications in minutes.")
    (license lgpl2.0))) ; plus certain additional permissions