97 lines
2.9 KiB
Plaintext
97 lines
2.9 KiB
Plaintext
|
;;;; Font.stklos -- The Font Class
|
|||
|
|
;;;;
|
|||
|
|
;;;; Copyright <20> 1999 Erick Gallesio - I3S-CNRS/ESSI <eg@unice.fr>
|
|||
|
|
;;;;
|
|||
|
|
;;;; Permission to use, copy, modify, distribute,and license this
|
|||
|
|
;;;; software and its documentation for any purpose is hereby granted,
|
|||
|
|
;;;; provided that existing copyright notices are retained in all
|
|||
|
|
;;;; copies and that this notice is included verbatim in any
|
|||
|
|
;;;; distributions. No written agreement, license, or royalty fee is
|
|||
|
|
;;;; required for any of the authorized uses.
|
|||
|
|
;;;; This software is provided ``AS IS'' without express or implied
|
|||
|
|
;;;; warranty.
|
|||
|
|
;;;;
|
|||
|
|
;;;; Author: Erick Gallesio [eg@unice.fr]
|
|||
|
|
;;;; Creation date: 18-May-1999 13:24
|
|||
|
|
;;;; Last file update: 3-Sep-1999 20:10 (eg)
|
|||
|
|
|
|||
|
|
(require "Basics")
|
|||
|
|
|
|||
|
|
(select-module STklos+Tk)
|
|||
|
|
|
|||
|
|
;=============================================================================
|
|||
|
|
;
|
|||
|
|
; <Font> class definition
|
|||
|
|
;
|
|||
|
|
;=============================================================================
|
|||
|
|
|
|||
|
|
(define-class <Font> ()
|
|||
|
|
((Id)
|
|||
|
|
(family :accessor family
|
|||
|
|
:allocation :tk-virtual
|
|||
|
|
:init-keyword :family)
|
|||
|
|
(size :accessor size
|
|||
|
|
:allocation :tk-virtual
|
|||
|
|
:init-keyword :size)
|
|||
|
|
(weight :accessor weight
|
|||
|
|
:allocation :tk-virtual
|
|||
|
|
:init-keyword :weight)
|
|||
|
|
(slant :accessor slant
|
|||
|
|
:allocation :tk-virtual
|
|||
|
|
:init-keyword :slant)
|
|||
|
|
(underline :accessor underline
|
|||
|
|
:allocation :tk-virtual
|
|||
|
|
:init-keyword :underline)
|
|||
|
|
(overstrike :accessor overstrike
|
|||
|
|
:allocation :tk-virtual
|
|||
|
|
:init-keyword :overstrike)
|
|||
|
|
;; Special virtual slot "value"
|
|||
|
|
(value :accessor value
|
|||
|
|
:allocation :virtual
|
|||
|
|
:init-keyword :value
|
|||
|
|
:slot-ref (lambda (o)
|
|||
|
|
(let ((id (slot-ref o 'id))
|
|||
|
|
(font (with-module Tk font)))
|
|||
|
|
(append
|
|||
|
|
(list (font 'conf id :family)
|
|||
|
|
(font 'conf id :size)
|
|||
|
|
(string->symbol (font 'conf id :weight))
|
|||
|
|
(string->symbol (font 'conf id :slant)))
|
|||
|
|
(if (font 'conf id :underline)
|
|||
|
|
'(underline)
|
|||
|
|
'())
|
|||
|
|
(if (font 'conf id :overstrike)
|
|||
|
|
'(overstrike)
|
|||
|
|
'()))))
|
|||
|
|
:slot-set! (lambda (o v)
|
|||
|
|
(let ((id (slot-ref o 'id))
|
|||
|
|
(font (with-module Tk font)))
|
|||
|
|
(apply font 'configure id (font 'actual v))))))
|
|||
|
|
:metaclass <Tk-font-metaclass>)
|
|||
|
|
|
|||
|
|
(define-method initialize ((self <Font>) initargs)
|
|||
|
|
(let ((Id (gensym "font"))
|
|||
|
|
(font (with-module Tk font)))
|
|||
|
|
(font 'create Id)
|
|||
|
|
(slot-set! self 'Id Id)
|
|||
|
|
(next-method)))
|
|||
|
|
|
|||
|
|
;=============================================================================
|
|||
|
|
;
|
|||
|
|
; a special Tk-write-object for communicating fonts to Tk
|
|||
|
|
;
|
|||
|
|
;=============================================================================
|
|||
|
|
|
|||
|
|
(define-method Tk-write-object((self <Font>) port)
|
|||
|
|
(write (slot-ref self 'id) port))
|
|||
|
|
|
|||
|
|
(provide "Font")
|
|||
|
|
#|
|
|||
|
|
Example:
|
|||
|
|
(define f (make <Font> :family "helvetica" :size 48))
|
|||
|
|
(define b (make <Button> :text "foo" :font f))
|
|||
|
|
(pack b)
|
|||
|
|
(after 3000 (lambda () (slot-set! f 'value "fixed")))
|
|||
|
|
|
|||
|
|
#|
|