2001-07-16 12:23:00 +00:00
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|
;;; ps-bdf.el --- BDF font file handler for ps-print
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
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2003-07-12 00:20:38 +00:00
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;; Copyright (C) 1998, 1999, 2001, 2003 Electrotechnical Laboratory, JAPAN.
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
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;; Licensed to the Free Software Foundation.
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1999-10-20 01:08:36 +00:00
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;; Keywords: wp, BDF, font, PostScript
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2001-07-16 12:23:00 +00:00
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|
;; Maintainer: Kenichi Handa <handa@etl.go.jp>
|
2003-07-12 00:20:38 +00:00
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|
|
;; Time-stamp: <2003/07/11 21:13:44 vinicius>
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
|
|
|
|
;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Functions for getting bitmap information from X's BDF font file are
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;; provided.
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;;; Code:
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2001-04-02 10:35:44 +00:00
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(eval-and-compile
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(require 'ps-mule)
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;; to avoid XEmacs compilation gripes
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(defvar installation-directory nil)
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|
(defvar coding-system-for-read nil))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
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;;;###autoload
|
1999-03-07 13:31:58 +00:00
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(defvar bdf-directory-list
|
2003-07-12 00:20:38 +00:00
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|
(if (memq system-type '(ms-dos windows-nt))
|
1999-03-07 14:12:35 +00:00
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|
(list (expand-file-name "fonts/bdf" installation-directory))
|
1999-03-07 13:31:58 +00:00
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|
'("/usr/local/share/emacs/fonts/bdf"))
|
1999-02-27 02:14:10 +00:00
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|
"*List of directories to search for `BDF' font files.
|
1999-03-09 23:26:28 +00:00
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|
The default value is '(\"/usr/local/share/emacs/fonts/bdf\").")
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
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|
2001-06-29 17:50:27 +00:00
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|
;; MS-DOS and MS-Windows users like to move the binary around after
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;; it's built, but the value above is computed at load-up time.
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2003-07-12 00:20:38 +00:00
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|
(and (memq system-type '(ms-dos windows-nt))
|
1999-03-07 14:12:35 +00:00
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|
(setq bdf-directory-list
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(list (expand-file-name "fonts/bdf" installation-directory))))
|
|
|
|
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
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|
(defun bdf-expand-file-name (bdfname)
|
2001-04-02 10:35:44 +00:00
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|
"Return an absolute path name of a `BDF' font file BDFNAME.
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
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|
It searches directories listed in the variable `bdf-directory-list'
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for BDFNAME."
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(if (file-name-absolute-p bdfname)
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(and (file-readable-p bdfname)
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bdfname)
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(let ((dir-list bdf-directory-list)
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dir)
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(while (and dir-list
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(progn
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(setq dir (expand-file-name bdfname (car dir-list)))
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(not (file-readable-p dir))))
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(setq dir nil
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dir-list (cdr dir-list)))
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dir)))
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(defsubst bdf-file-mod-time (filename)
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"Return modification time of FILENAME.
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The value is a list of two integers, the first integer has high-order
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16 bits, the second has low 16 bits."
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(nth 5 (file-attributes filename)))
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(defun bdf-file-newer-than-time (filename mod-time)
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"Return non-nil if and only if FILENAME is newer than MOD-TIME.
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MOD-TIME is a modification time as a list of two integers, the first
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integer has high-order 16 bits, the second has low 16 bits."
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(let ((file-name (bdf-expand-file-name filename)))
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(and file-name
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(let* ((new-mod-time (bdf-file-mod-time file-name))
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(new-time (car new-mod-time))
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(time (car mod-time)))
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(or (> new-time time)
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(and (= new-time time)
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(> (nth 1 new-mod-time) (nth 1 mod-time))))))))
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(defun bdf-find-file (bdfname)
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"Return a buffer visiting a bdf file BDFNAME.
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If BDFNAME is not an absolute path, directories listed in
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`bdf-directory-list' is searched.
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If BDFNAME doesn't exist, return nil."
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(let ((file-name (bdf-expand-file-name bdfname)))
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(and file-name
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(let ((buf (generate-new-buffer " *bdf-work*"))
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(coding-system-for-read 'no-conversion))
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(save-excursion
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(set-buffer buf)
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(insert-file-contents file-name)
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buf)))))
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|
2001-09-16 18:03:28 +00:00
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(defvar bdf-cache-file (if (eq system-type 'ms-dos)
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;; convert-standard-filename doesn't
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;; guarantee that the .el extension will be
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;; preserved.
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"~/_bdfcache.el"
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|
(convert-standard-filename "~/.bdfcache.el"))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
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|
"Name of cache file which contains information of `BDF' font files.")
|
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(defvar bdf-cache nil
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"Cached information of `BDF' font files. It is a list of FONT-INFO.
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FONT-INFO is a list of the following format:
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(BDFFILE ABSOLUTE-PATH MOD-TIME SIZE FONT-BOUNDING-BOX
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RELATIVE-COMPOSE BASELINE-OFFSET CODE-RANGE MAXLEN OFFSET-VECTOR)
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See the documentation of the function `bdf-read-font-info' for more detail.")
|
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(defun bdf-read-cache ()
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"Return a cached information about `BDF' font files from a cache file.
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The variable `bdf-cache-file' holds the cache file name.
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If the cache file is not readable, this return nil."
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(setq bdf-cache nil)
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(condition-case nil
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(and (file-readable-p bdf-cache-file)
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(progn
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(load-file bdf-cache-file)
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(if (listp bdf-cache)
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bdf-cache
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(setq bdf-cache nil))))
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(error nil)))
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(defun bdf-write-cache ()
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"Write out cached information of `BDF' font file to a file.
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The variable `bdf-cache-file' holds the cache file name.
|
2001-04-02 10:35:44 +00:00
|
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|
The file is written if and only if the file already exists and writable."
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(and bdf-cache
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(file-exists-p bdf-cache-file)
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(file-writable-p bdf-cache-file)
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(write-region (format "(setq bdf-cache '%S)\n" bdf-cache)
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nil bdf-cache-file)))
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(defun bdf-set-cache (font-info)
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"Cache FONT-INFO as information about one `BDF' font file.
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FONT-INFO is a list of the following format:
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(BDFFILE ABSOLUTE-PATH MOD-TIME SIZE FONT-BOUNDING-BOX
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RELATIVE-COMPOSE BASELINE-OFFSET CODE-RANGE MAXLEN OFFSET-VECTOR)
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See the documentation of the function `bdf-read-font-info' for more detail."
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(let ((slot (assoc (car font-info) bdf-cache)))
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(if slot
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(setcdr slot (cdr font-info))
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(setq bdf-cache (cons font-info bdf-cache)))))
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(defun bdf-initialize ()
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"Initialize `bdf' library."
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(and (bdf-read-cache)
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(add-hook 'kill-emacs-hook 'bdf-write-cache)))
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(defun bdf-compact-code (code code-range)
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(if (or (< code (aref code-range 4))
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(> code (aref code-range 5)))
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(setq code (aref code-range 6)))
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(+ (* (- (lsh code -8) (aref code-range 0))
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(1+ (- (aref code-range 3) (aref code-range 2))))
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(- (logand code 255) (aref code-range 2))))
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(defun bdf-expand-code (code code-range)
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(let ((code0-range (1+ (- (aref code-range 3) (aref code-range 2)))))
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(+ (* (+ (/ code code0-range) (aref code-range 0)) 256)
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(+ (% code code0-range) (aref code-range 2)))))
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(defun bdf-search-and-read (match limit)
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(goto-char (point-min))
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(and (search-forward match limit t)
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(progn
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(goto-char (match-end 0))
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(read (current-buffer)))))
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(defun bdf-read-font-info (bdfname)
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"Read `BDF' font file BDFNAME and return information (FONT-INFO) of the file.
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FONT-INFO is a list of the following format:
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(BDFFILE ABSOLUTE-PATH MOD-TIME FONT-BOUNDING-BOX
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RELATIVE-COMPOSE BASELINE-OFFSET CODE-RANGE MAXLEN OFFSET-VECTOR)
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BDFFILE is a name of a font file (excluding directory part).
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ABSOLUTE-PATH is an absolute path of the font file.
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MOD-TIME is last modification time as a list of two integers, the
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first integer has high-order 16 bits, the second has low 16 bits.
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SIZE is a size of the font. This value is got from SIZE record of the
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font.
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FONT-BOUNDING-BOX is the font bounding box as a list of four integers,
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BBX-WIDTH, BBX-HEIGHT, BBX-XOFF, and BBX-YOFF.
|
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|
RELATIVE-COMPOSE is an integer value of the font's property
|
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|
`_MULE_RELATIVE_COMPOSE'. If the font doesn't have this property, the
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value is 0.
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|
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|
BASELINE-OFFSET is an integer value of the font's property
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|
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`_MULE_BASELINE_OFFSET'. If the font doesn't have this property, the
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value is 0.
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CODE-RANGE is a vector of minimum 1st byte, maximum 1st byte, minimum
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|
2nd byte, maximum 2nd byte, minimum code, maximum code, and default
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|
|
code. For 1-byte fonts, the first two elements are 0.
|
|
|
|
|
2001-04-02 10:35:44 +00:00
|
|
|
MAXLEN is a maximum bytes of one glyph information in the font file.
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
|
|
|
|
OFFSET-VECTOR is a vector of a file position which starts bitmap data
|
|
|
|
of the glyph in the font file.
|
|
|
|
|
|
|
|
Nth element of OFFSET-VECTOR is a file position for the glyph of code
|
|
|
|
CODE, where N and CODE are in the following relation:
|
|
|
|
(bdf-compact-code CODE) => N, (bdf-expand-code N) => CODE"
|
|
|
|
(let* ((absolute-path (bdf-expand-file-name bdfname))
|
|
|
|
(buf (and absolute-path (bdf-find-file absolute-path)))
|
|
|
|
(maxlen 0)
|
|
|
|
(relative-compose 'false)
|
|
|
|
(baseline-offset 0)
|
|
|
|
size
|
2003-02-04 12:29:42 +00:00
|
|
|
font-bounding-box
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
default-char
|
|
|
|
code-range
|
|
|
|
offset-vector)
|
|
|
|
(if buf
|
|
|
|
(message "Reading %s..." bdfname)
|
|
|
|
(error "BDF file %s doesn't exist" bdfname))
|
|
|
|
(unwind-protect
|
|
|
|
(save-excursion
|
|
|
|
(set-buffer buf)
|
|
|
|
(goto-char (point-min))
|
|
|
|
(search-forward "\nFONTBOUNDINGBOX")
|
|
|
|
(setq font-bounding-box
|
|
|
|
(vector (read (current-buffer)) (read (current-buffer))
|
|
|
|
(read (current-buffer)) (read (current-buffer))))
|
|
|
|
;; The following kludgy code is to avoid bugs of fonts
|
|
|
|
;; jiskan16.bdf and jiskan24.bdf distributed with X.
|
|
|
|
;; They contain wrong FONTBOUNDINGBOX.
|
|
|
|
(and (> (aref font-bounding-box 3) 0)
|
|
|
|
(string-match "jiskan\\(16\\|24\\)" bdfname)
|
|
|
|
(aset font-bounding-box 3
|
|
|
|
(- (aref font-bounding-box 3))))
|
|
|
|
|
|
|
|
(goto-char (point-min))
|
|
|
|
(search-forward "\nSIZE ")
|
|
|
|
(setq size (read (current-buffer)))
|
|
|
|
;; The following kludgy code is t avoid bugs of several
|
|
|
|
;; fonts which have wrong SIZE record.
|
2000-12-07 00:00:11 +00:00
|
|
|
(and (<= size (/ (aref font-bounding-box 1) 3))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(setq size (aref font-bounding-box 1)))
|
|
|
|
|
|
|
|
(setq default-char (bdf-search-and-read "\nDEFAULT_CHAR" nil))
|
|
|
|
|
|
|
|
(search-forward "\nSTARTCHAR")
|
|
|
|
(forward-line -1)
|
|
|
|
(let ((limit (point)))
|
|
|
|
(setq relative-compose
|
|
|
|
(or (bdf-search-and-read "\n_MULE_RELATIVE_COMPOSE" limit)
|
|
|
|
'false)
|
|
|
|
baseline-offset
|
|
|
|
(or (bdf-search-and-read "\n_MULE_BASELINE_OFFSET" limit)
|
|
|
|
0)))
|
|
|
|
|
|
|
|
(let ((min-code0 256) (min-code1 256) (min-code 65536)
|
|
|
|
(max-code0 0) (max-code1 0) (max-code 0)
|
2001-04-02 10:35:44 +00:00
|
|
|
glyph glyph-list code0 code1 code offset)
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
|
|
|
|
(while (search-forward "\nSTARTCHAR" nil t)
|
|
|
|
(setq offset (line-beginning-position))
|
|
|
|
(search-forward "\nENCODING")
|
|
|
|
(setq code (read (current-buffer))
|
|
|
|
code0 (lsh code -8)
|
|
|
|
code1 (logand code 255)
|
|
|
|
min-code (min min-code code)
|
|
|
|
max-code (max max-code code)
|
|
|
|
min-code0 (min min-code0 code0)
|
|
|
|
max-code0 (max max-code0 code0)
|
|
|
|
min-code1 (min min-code1 code1)
|
|
|
|
max-code1 (max max-code1 code1))
|
|
|
|
(search-forward "ENDCHAR")
|
|
|
|
(setq maxlen (max maxlen (- (point) offset))
|
|
|
|
glyph-list (cons (cons code offset) glyph-list)))
|
|
|
|
|
|
|
|
(setq code-range
|
|
|
|
(vector min-code0 max-code0 min-code1 max-code1
|
|
|
|
min-code max-code (or default-char min-code))
|
|
|
|
offset-vector
|
|
|
|
(make-vector (1+ (bdf-compact-code max-code code-range))
|
|
|
|
nil))
|
|
|
|
|
|
|
|
(while glyph-list
|
|
|
|
(setq glyph (car glyph-list)
|
|
|
|
glyph-list (cdr glyph-list))
|
|
|
|
(aset offset-vector
|
|
|
|
(bdf-compact-code (car glyph) code-range)
|
|
|
|
(cdr glyph)))))
|
|
|
|
|
|
|
|
(kill-buffer buf))
|
|
|
|
(message "Reading %s...done" bdfname)
|
|
|
|
(list bdfname absolute-path (bdf-file-mod-time absolute-path)
|
|
|
|
size font-bounding-box relative-compose baseline-offset
|
|
|
|
code-range maxlen offset-vector)))
|
|
|
|
|
|
|
|
(defsubst bdf-info-absolute-path (font-info) (nth 1 font-info))
|
|
|
|
(defsubst bdf-info-mod-time (font-info) (nth 2 font-info))
|
|
|
|
(defsubst bdf-info-size (font-info) (nth 3 font-info))
|
|
|
|
(defsubst bdf-info-font-bounding-box (font-info) (nth 4 font-info))
|
|
|
|
(defsubst bdf-info-relative-compose (font-info) (nth 5 font-info))
|
|
|
|
(defsubst bdf-info-baseline-offset (font-info) (nth 6 font-info))
|
|
|
|
(defsubst bdf-info-code-range (font-info) (nth 7 font-info))
|
|
|
|
(defsubst bdf-info-maxlen (font-info) (nth 8 font-info))
|
|
|
|
(defsubst bdf-info-offset-vector (font-info) (nth 9 font-info))
|
|
|
|
|
|
|
|
(defun bdf-get-font-info (bdfname)
|
|
|
|
"Return information about `BDF' font file BDFNAME.
|
|
|
|
The value FONT-INFO is a list of the following format:
|
|
|
|
(BDFFILE ABSOLUTE-PATH MOD-TIME SIZE FONT-BOUNDING-BOX
|
|
|
|
RELATIVE-COMPOSE BASELINE-OFFSET CODE-RANGE MAXLEN OFFSET-VECTOR)
|
|
|
|
See the documentation of the function `bdf-read-font-info' for more detail."
|
|
|
|
(or bdf-cache
|
|
|
|
(bdf-read-cache))
|
|
|
|
(let ((font-info (assoc bdfname bdf-cache)))
|
|
|
|
(if (or (not font-info)
|
|
|
|
(not (file-readable-p (bdf-info-absolute-path font-info)))
|
|
|
|
(bdf-file-newer-than-time bdfname (bdf-info-mod-time font-info)))
|
|
|
|
(progn
|
|
|
|
(setq font-info (bdf-read-font-info bdfname))
|
|
|
|
(bdf-set-cache font-info)))
|
|
|
|
font-info))
|
|
|
|
|
1999-01-17 16:34:00 +00:00
|
|
|
(defun bdf-find-font-info (bdfnames)
|
|
|
|
"Return information about `BDF' font file with alternative names BDFNAMES.
|
|
|
|
|
|
|
|
If BDFNAMES is a list of file names, this function finds the first file
|
|
|
|
in the list which exists and is readable, then calls `bdf-get-font-info'
|
|
|
|
on that file name."
|
|
|
|
(let ((fnlist bdfnames)
|
|
|
|
(fname bdfnames))
|
|
|
|
(if (consp fnlist)
|
|
|
|
(while (and fnlist
|
|
|
|
(progn
|
|
|
|
(setq fname (car fnlist))
|
|
|
|
(null (bdf-expand-file-name fname))))
|
|
|
|
(setq fname nil
|
|
|
|
fnlist (cdr fnlist))))
|
|
|
|
(bdf-get-font-info (or fname (car bdfnames)))))
|
|
|
|
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(defun bdf-read-bitmap (bdfname offset maxlen)
|
2001-04-02 10:35:44 +00:00
|
|
|
"Read `BDF' font file BDFNAME to get bitmap data at file position OFFSET.
|
|
|
|
BDFNAME is an absolute path name of the font file.
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
MAXLEN specifies how many bytes we should read at least.
|
|
|
|
The value is a list of DWIDTH, BBX, and BITMAP-STRING.
|
|
|
|
DWIDTH is a pixel width of a glyph.
|
|
|
|
BBX is a bounding box of the glyph.
|
|
|
|
BITMAP-STRING is a string representing bits by hexadecimal digits."
|
2001-09-19 09:12:54 +00:00
|
|
|
(let* ((coding-system-for-read 'no-conversion)
|
|
|
|
(bbx (elt (bdf-get-font-info bdfname) 4))
|
|
|
|
(dwidth (elt bbx 0))
|
|
|
|
(bitmap-string "")
|
|
|
|
height yoff)
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(condition-case nil
|
|
|
|
(with-temp-buffer
|
|
|
|
(insert-file-contents bdfname nil offset (+ offset maxlen))
|
|
|
|
(goto-char (point-min))
|
|
|
|
(search-forward "\nDWIDTH")
|
|
|
|
(setq dwidth (read (current-buffer)))
|
|
|
|
(goto-char (point-min))
|
|
|
|
(search-forward "\nBBX")
|
|
|
|
(setq bbx (vector (read (current-buffer)) (read (current-buffer))
|
|
|
|
(read (current-buffer)) (read (current-buffer)))
|
2001-04-02 10:35:44 +00:00
|
|
|
height (aref bbx 1)
|
|
|
|
yoff (aref bbx 3))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(search-forward "\nBITMAP")
|
|
|
|
(forward-line 1)
|
|
|
|
(delete-region (point-min) (point))
|
|
|
|
(and (looking-at "\\(0+\n\\)+")
|
|
|
|
(progn
|
|
|
|
(setq height (- height (count-lines (point) (match-end 0))))
|
|
|
|
(delete-region (point) (match-end 0))))
|
|
|
|
(or (looking-at "ENDCHAR")
|
|
|
|
(progn
|
|
|
|
(search-forward "ENDCHAR" nil 'move)
|
|
|
|
(forward-line -1)
|
|
|
|
(while (looking-at "0+$")
|
|
|
|
(setq yoff (1+ yoff)
|
|
|
|
height (1- height))
|
|
|
|
(forward-line -1))
|
|
|
|
(forward-line 1)))
|
|
|
|
(aset bbx 1 height)
|
|
|
|
(aset bbx 3 yoff)
|
|
|
|
(delete-region (point) (point-max))
|
|
|
|
(goto-char (point-min))
|
|
|
|
(while (not (eobp))
|
|
|
|
(end-of-line)
|
|
|
|
(delete-char 1))
|
|
|
|
(setq bitmap-string (buffer-string)))
|
|
|
|
(error nil))
|
|
|
|
(list dwidth bbx bitmap-string)))
|
|
|
|
|
|
|
|
(defun bdf-get-bitmaps (bdfname codes)
|
|
|
|
"Return bitmap information of glyphs of CODES in `BDF' font file BDFNAME.
|
|
|
|
CODES is a list of encoding number of glyphs in the file.
|
|
|
|
The value is a list of CODE, DWIDTH, BBX, and BITMAP-STRING.
|
|
|
|
DWIDTH is a pixel width of a glyph.
|
|
|
|
BBX is a bounding box of the glyph.
|
|
|
|
BITMAP-STRING is a string representing bits by hexadecimal digits."
|
1999-01-17 16:34:00 +00:00
|
|
|
(let* ((font-info (bdf-find-font-info bdfname))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(absolute-path (bdf-info-absolute-path font-info))
|
2001-04-02 10:35:44 +00:00
|
|
|
;;(font-bounding-box (bdf-info-font-bounding-box font-info))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(maxlen (bdf-info-maxlen font-info))
|
|
|
|
(code-range (bdf-info-code-range font-info))
|
|
|
|
(offset-vector (bdf-info-offset-vector font-info)))
|
|
|
|
(mapcar '(lambda (x)
|
|
|
|
(cons x (bdf-read-bitmap
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absolute-path
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(aref offset-vector (bdf-compact-code x code-range))
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maxlen)))
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codes)))
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;;; Interface to ps-print.el
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;; Called from ps-mule-init-external-library.
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(defun bdf-generate-prologue ()
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(or bdf-cache
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(bdf-initialize))
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(ps-mule-generate-bitmap-prologue))
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;; Called from ps-mule-generate-font.
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(defun bdf-generate-font (charset font-spec)
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(let* ((font-name (ps-mule-font-spec-name font-spec))
|
1999-01-17 16:34:00 +00:00
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|
(font-info (bdf-find-font-info font-name))
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(font-name (if (consp font-name) (car font-name) font-name)))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(ps-mule-generate-bitmap-font font-name
|
|
|
|
(ps-mule-font-spec-bytes font-spec)
|
|
|
|
(charset-width charset)
|
|
|
|
(bdf-info-size font-info)
|
|
|
|
(bdf-info-relative-compose font-info)
|
|
|
|
(bdf-info-baseline-offset font-info)
|
|
|
|
(bdf-info-font-bounding-box font-info))))
|
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|
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|
|
|
|
;; Called from ps-mule-generate-glyphs.
|
|
|
|
(defun bdf-generate-glyphs (font-spec code-list bytes)
|
|
|
|
(let ((font-name (ps-mule-font-spec-name font-spec)))
|
|
|
|
(mapcar '(lambda (x)
|
1999-01-17 16:34:00 +00:00
|
|
|
(apply 'ps-mule-generate-bitmap-glyph
|
|
|
|
(if (consp font-name) (car font-name) font-name)
|
|
|
|
x))
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
(bdf-get-bitmaps font-name code-list))))
|
|
|
|
|
|
|
|
(provide 'ps-bdf)
|
|
|
|
|
2003-09-01 15:45:59 +00:00
|
|
|
;;; arch-tag: 9b875ba8-565a-4ecf-acaa-30cee732c898
|
File name changed from bdf.el. Provide ps-bdf
instead of bdf.
Require ps-mule instead of ps-print.
(bdf-directory-list): Add autoload cookie.
Programming uniformization and little code improvement.
(bdf-search-and-read): New fun.
(bdf-write-cache, bdf-initialize, bdf-info-absolute-path)
(bdf-info-mod-time, bdf-info-size, bdf-info-font-bounding-box)
(bdf-info-relative-compose, bdf-info-baseline-offset)
(bdf-info-code-range, bdf-info-maxlen, bdf-info-offset-vector)
(bdf-read-bitmap, bdf-get-bitmaps): Programming uniformization.
(bdf-expand-file-name, bdf-file-newer-than-time, bdf-find-file)
(bdf-read-cache, bdf-read-font-info, bdf-generate-glyphs): Little code
improvement.
1998-12-15 06:39:39 +00:00
|
|
|
;;; ps-bdf.el ends here
|