;; National Institute of Advanced Industrial Science and Technology (AIST)
;; Registration Number H14PRO021
+;; Copyright (C) 2003
+;; National Institute of Advanced Industrial Science and Technology (AIST)
+;; Registration Number H13PRO009
+
;; Keywords: wp, BDF, font, PostScript
;; Maintainer: Kenichi Handa <handa@m17n.org>
;;; Code:
(eval-and-compile
- (require 'ps-mule)
-
- ;; to avoid XEmacs compilation gripes
- (defvar installation-directory nil)
- (defvar coding-system-for-read nil))
+ (require 'ps-mule))
;;;###autoload
(defvar bdf-directory-list
(if (file-name-absolute-p bdfname)
(and (file-readable-p bdfname)
bdfname)
- (let ((dir-list bdf-directory-list)
- dir)
- (while (and dir-list
- (progn
- (setq dir (expand-file-name bdfname (car dir-list)))
- (not (file-readable-p dir))))
- (setq dir nil
- dir-list (cdr dir-list)))
- dir)))
+ (catch 'tag
+ (dolist (dir bdf-directory-list)
+ (let ((absolute-path (expand-file-name bdfname dir)))
+ (if (file-readable-p absolute-path)
+ (throw 'tag absolute-path)))))))
(defsubst bdf-file-mod-time (filename)
"Return modification time of FILENAME.
"Return non-nil if and only if FILENAME is newer than MOD-TIME.
MOD-TIME is a modification time as a list of two integers, the first
integer has high-order 16 bits, the second has low 16 bits."
- (let ((file-name (bdf-expand-file-name filename)))
- (and file-name
- (let* ((new-mod-time (bdf-file-mod-time file-name))
- (new-time (car new-mod-time))
- (time (car mod-time)))
- (or (> new-time time)
- (and (= new-time time)
- (> (nth 1 new-mod-time) (nth 1 mod-time))))))))
+ (let* ((new-mod-time (bdf-file-mod-time filename))
+ (new-time (car new-mod-time))
+ (time (car mod-time)))
+ (or (> new-time time)
+ (and (= new-time time)
+ (> (nth 1 new-mod-time) (nth 1 mod-time))))))
(defun bdf-find-file (bdfname)
"Return a buffer visiting a bdf file BDFNAME.
-If BDFNAME is not an absolute path, directories listed in
-`bdf-directory-list' is searched.
+BDFNAME must be an absolute file name.
If BDFNAME doesn't exist, return nil."
- (let ((file-name (bdf-expand-file-name bdfname)))
- (and file-name
- (let ((buf (generate-new-buffer " *bdf-work*"))
- (coding-system-for-read 'no-conversion))
- (save-excursion
- (set-buffer buf)
- (insert-file-contents file-name)
- buf)))))
+ (and (file-readable-p bdfname)
+ (let ((buf (generate-new-buffer " *bdf-work*"))
+ (coding-system-for-read 'no-conversion))
+ (save-excursion
+ (set-buffer buf)
+ (insert-file-contents bdfname)
+ buf))))
(defvar bdf-cache-file (if (eq system-type 'ms-dos)
;; convert-standard-filename doesn't
(defvar bdf-cache nil
"Cached information of `BDF' font files. It is a list of FONT-INFO.
FONT-INFO is a list of the following format:
- (BDFFILE ABSOLUTE-PATH MOD-TIME SIZE FONT-BOUNDING-BOX
+ (ABSOLUTE-FILE-NAME 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.")
(defun bdf-set-cache (font-info)
"Cache FONT-INFO as information about one `BDF' font file.
FONT-INFO is a list of the following format:
- (BDFFILE ABSOLUTE-PATH MOD-TIME SIZE FONT-BOUNDING-BOX
+ (ABSOLUTE-FILE-NAME 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."
(let ((slot (assoc (car font-info) bdf-cache)))
(defun bdf-read-font-info (bdfname)
"Read `BDF' font file BDFNAME and return information (FONT-INFO) of the file.
+BDFNAME must be an absolute file name.
FONT-INFO is a list of the following format:
- (BDFFILE ABSOLUTE-PATH MOD-TIME FONT-BOUNDING-BOX
+ (BDFFILE MOD-TIME FONT-BOUNDING-BOX
RELATIVE-COMPOSE BASELINE-OFFSET CODE-RANGE MAXLEN OFFSET-VECTOR)
-BDFFILE is a name of a font file (excluding directory part).
-
-ABSOLUTE-PATH is an absolute path of the font file.
-
MOD-TIME is last modification time as a list of two integers, the
first integer has high-order 16 bits, the second has low 16 bits.
-SIZE is a size of the font. This value is got from SIZE record of the
-font.
+SIZE is a size of the font on 72 dpi device. This value is got
+from SIZE record of the font.
FONT-BOUNDING-BOX is the font bounding box as a list of four integers,
BBX-WIDTH, BBX-HEIGHT, BBX-XOFF, and BBX-YOFF.
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)))
+ (let* ((buf (bdf-find-file bdfname))
(maxlen 0)
(relative-compose 'false)
(baseline-offset 0)
size
+ dpi
font-bounding-box
default-char
code-range
(- (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.
- (and (<= size (/ (aref font-bounding-box 1) 3))
- (setq size (aref font-bounding-box 1)))
+ (search-forward "\nFONT ")
+ (if (looking-at "-[^-]*-[^-]*-[^-]*-[^-]*-[^-]*-[^-]*-\\([0-9]+\\)")
+ (setq size (string-to-int (match-string 1)))
+ (search-forward "\nSIZE ")
+ (setq size (read (current-buffer)))
+ ;; The following kludgy code is t avoid bugs of several
+ ;; fonts which have wrong SIZE record.
+ (and (string-match "jiskan" bdfname)
+ (<= size (/ (aref font-bounding-box 1) 3))
+ (setq size (aref font-bounding-box 1)))
+ (setq dpi (read (current-buffer)))
+ (if (and (> dpi 0) (/= dpi 72))
+ (setq size (/ (* size dpi) 72))))
(setq default-char (bdf-search-and-read "\nDEFAULT_CHAR" nil))
(kill-buffer buf))
(message "Reading %s...done" bdfname)
- (list bdfname absolute-path (bdf-file-mod-time absolute-path)
+ (list bdfname (bdf-file-mod-time bdfname)
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))
+(defsubst bdf-info-absolute-path (font-info) (nth 0 font-info))
+(defsubst bdf-info-mod-time (font-info) (nth 1 font-info))
+(defsubst bdf-info-size (font-info) (nth 2 font-info))
+(defsubst bdf-info-font-bounding-box (font-info) (nth 3 font-info))
+(defsubst bdf-info-relative-compose (font-info) (nth 4 font-info))
+(defsubst bdf-info-baseline-offset (font-info) (nth 5 font-info))
+(defsubst bdf-info-code-range (font-info) (nth 6 font-info))
+(defsubst bdf-info-maxlen (font-info) (nth 7 font-info))
+(defsubst bdf-info-offset-vector (font-info) (nth 8 font-info))
(defun bdf-get-font-info (bdfname)
"Return information about `BDF' font file BDFNAME.
+BDFNAME must be an absolute file name.
The value FONT-INFO is a list of the following format:
- (BDFFILE ABSOLUTE-PATH MOD-TIME SIZE FONT-BOUNDING-BOX
+ (BDFNAME 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)))
+ (not (file-readable-p bdfname))
(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))
-(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)))))
-
-(defun bdf-read-bitmap (bdfname offset maxlen)
+(defun bdf-read-bitmap (bdfname offset maxlen relative-compose)
"Read `BDF' font file BDFNAME to get bitmap data at file position OFFSET.
BDFNAME is an absolute path name of the font file.
MAXLEN specifies how many bytes we should read at least.
BBX is a bounding box of the glyph.
BITMAP-STRING is a string representing bits by hexadecimal digits."
(let* ((coding-system-for-read 'no-conversion)
- (bbx (elt (bdf-get-font-info bdfname) 4))
+ (bbx (bdf-info-font-bounding-box (bdf-get-font-info bdfname)))
(dwidth (elt bbx 0))
(bitmap-string "")
height yoff)
(goto-char (point-min))
(search-forward "\nDWIDTH")
(setq dwidth (read (current-buffer)))
+ (if (= dwidth 0)
+ (setq dwidth 0.1))
(goto-char (point-min))
(search-forward "\nBBX")
(setq bbx (vector (read (current-buffer)) (read (current-buffer))
(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.
+ (vector dwidth (aref bbx 0) (aref bbx 1) (aref bbx 2) (aref bbx 3)
+ (concat "<" bitmap-string ">")
+ (or relative-compose 'false))))
+
+(defun bdf-get-bitmap (bdfname code)
+ "Return bitmap information of glyph of CODE in `BDF' font file BDFNAME.
+CODE is an encoding number of glyph in the file.
+The value is a list (DWIDTH BBX 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."
- (let* ((font-info (bdf-find-font-info bdfname))
- (absolute-path (bdf-info-absolute-path font-info))
- ;;(font-bounding-box (bdf-info-font-bounding-box font-info))
- (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
- absolute-path
- (aref offset-vector (bdf-compact-code x code-range))
- maxlen)))
- codes)))
-
-;;; Interface to ps-print.el
+ (let* ((info (bdf-get-font-info bdfname))
+ (maxlen (bdf-info-maxlen info))
+ (code-range (bdf-info-code-range info))
+ (offset-vector (bdf-info-offset-vector info)))
+ (bdf-read-bitmap bdfname
+ (aref offset-vector (bdf-compact-code code code-range))
+ maxlen (bdf-info-relative-compose info))))
+
+;;; Interface to ps-mule.el
;; Called from ps-mule-init-external-library.
(defun bdf-generate-prologue ()
(bdf-initialize))
(ps-mule-generate-bitmap-prologue))
+;; Called from ps-mule-check-font.
+(defun bdf-check-font (font-spec)
+ (let ((font-name-list (ps-mule-font-spec-name font-spec)))
+ (ps-mule-font-spec-set-name
+ font-spec
+ (if (stringp font-name-list)
+ (bdf-expand-file-name font-name-list)
+ (catch 'tag
+ (dolist (font-name font-name-list)
+ (setq font-name (bdf-expand-file-name font-name))
+ (if font-name
+ (throw 'tag font-name))))))))
+
;; Called from ps-mule-generate-font.
-(defun bdf-generate-font (charset font-spec)
- (let* ((font-name (ps-mule-font-spec-name font-spec))
- (font-info (bdf-find-font-info font-name))
- (font-name (if (consp font-name) (car font-name) font-name)))
- (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))))
-
-;; 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)
- (apply 'ps-mule-generate-bitmap-glyph
- (if (consp font-name) (car font-name) font-name)
- x))
- (bdf-get-bitmaps font-name code-list))))
+(defun bdf-generate-font (font-spec)
+ (let ((info (bdf-get-font-info (ps-mule-font-spec-name font-spec))))
+ (ps-mule-font-spec-set-extra
+ font-spec (bdf-info-absolute-path info))
+ (ps-mule-generate-bitmap-font font-spec
+ (bdf-info-size info)
+ (bdf-info-relative-compose info)
+ (bdf-info-baseline-offset info)
+ (bdf-info-font-bounding-box info))))
+
+;; Called from ps-mule-generate-glyph.
+(defun bdf-generate-glyph (font-spec char)
+ (let ((font-name (ps-mule-font-spec-extra font-spec))
+ (code (ps-mule-encode-char char font-spec)))
+ (ps-mule-generate-bitmap-glyph font-spec char code
+ (bdf-get-bitmap font-name code))))
(provide 'ps-bdf)