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;;; guile-2d
;;; Copyright (C) 2013 David Thompson <dthompson2@worcester.edu>
;;;
;;; Guile-2d is free software: you can redistribute it and/or modify it
;;; under the terms of the GNU Lesser General Public License as
;;; published by the Free Software Foundation, either version 3 of the
;;; License, or (at your option) any later version.
;;;
;;; Guile-2d 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
;;; Lesser General Public License for more details.
;;;
;;; You should have received a copy of the GNU Lesser General Public
;;; License along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
;;; Commentary:
;;
;; Font rendering.
;;
;;; Code:
(define-module (2d font)
#:use-module (figl gl)
#:use-module (srfi srfi-9)
#:use-module (system foreign)
#:use-module (2d wrappers ftgl)
#:use-module (2d color))
;;;
;;; Font
;;;
;; Font objects represent an FTGL texture font at a given size.
(define-record-type <font>
(make-font ftgl-font size)
font?
(ftgl-font font-ftgl-font)
(size font-size))
(define (load-font filename size)
(let ((ftgl-font (ftgl-create-texture-font filename)))
;; Hardcoded 72 dpi for now.
(ftgl-set-font-face-size ftgl-font size 72)
(make-font ftgl-font size)))
(define (render-font font text x y color alignment)
(with-gl-push-matrix
(gl-translate x y 0)
(apply-color color)
(ftgl-render-font (font-ftgl-font font)
text
(ftgl-render-mode all))))
(export <font>
make-font
font?
font-ftgl-font
font-size
load-font
render-font)
;;;
;;; Textbox
;;;
;; A textbox is a string of text wrapped within certain dimensions.
;; (define-record-type <textbox>
;; (%make-textbox text layout)
;; textbox?
;; (text textbox-text)
;; (layout textbox-layout))
;; (define (make-textbox font text rect)
;; (let ((layout (ftgl-create-simple-layout)))
;; (ftgl-set-layout-font font)
;; (ftgl-set-layout-alignment (ftgl-text-alignment left))
;; (ftgl-set-layout-line-length (rect-width rect))))
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