1 ;;; msw-faces.el --- mswindows-specific face stuff.
3 ;;; Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
4 ;;; Copyright (C) 1995, 1996 Ben Wing.
6 ;; Author: Jamie Zawinski
7 ;; Modified by: Chuck Thompson
8 ;; Modified by: Ben Wing
9 ;; Modified by: Martin Buchholz
10 ;; Rewritten for mswindows by: Jonathan Harris
12 ;; This file is part of XEmacs.
14 ;; XEmacs is free software; you can redistribute it and/or modify it
15 ;; under the terms of the GNU General Public License as published by
16 ;; the Free Software Foundation; either version 2, or (at your option)
19 ;; XEmacs is distributed in the hope that it will be useful, but
20 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 ;; General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with XEmacs; see the file COPYING. If not, write to the
26 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
27 ;; Boston, MA 02111-1307, USA.
29 ;; This file does the magic to parse mswindows font names, and make sure that the
30 ;; default and modeline attributes of new frames are specified enough.
32 ;;; ensure that the default face has some reasonable fallbacks if nothing
33 ;;; else is specified.
34 (defun mswindows-init-device-faces (device)
35 (set-face-font 'default
36 '((mswindows default) . "Courier New:Regular:10") 'global)
40 (defun mswindows-init-frame-faces (frame)
44 ;;; Fill in missing parts of a font spec. This is primarily intended as a
45 ;;; helper function for the functions below.
46 ;;; mswindows fonts look like:
47 ;;; fontname[:[weight][ style][:pointsize[:effects]]][:charset]
48 ;;; A minimal mswindows font spec looks like:
50 ;;; A maximal mswindows font spec looks like:
51 ;;; Courier New:Bold Italic:10:underline strikeout:western
52 ;;; Missing parts of the font spec should be filled in with these values:
53 ;;; Courier New:Normal:10::western
54 (defun mswindows-font-canonicalize-name (font)
55 "Given a mswindows font or font specification, this returns its
56 specification in canonical form."
57 (if (or (font-instance-p font)
59 (let ((name (if (font-instance-p font)
60 (font-instance-name font)
63 "^[a-zA-Z ]+:[a-zA-Z ]*:[0-9]+:[a-zA-Z ]*:[a-zA-Z 0-9]*$"
65 ((string-match "^[a-zA-Z ]+:[a-zA-Z ]*:[0-9]+:[a-zA-Z ]*$"
66 name) (concat name ":western"))
67 ((string-match "^[a-zA-Z ]+:[a-zA-Z ]*:[0-9]+$" name)
68 (concat name "::western"))
69 ((string-match "^[a-zA-Z ]+:[a-zA-Z ]*$" name)
70 (concat name ":10::western"))
71 ((string-match "^[a-zA-Z ]+$" name)
72 (concat name ":Normal:10::western"))
73 (t "Courier New:Normal:10::western")))))
75 (defun mswindows-make-font-bold (font &optional device)
76 "Given a mswindows font specification, this attempts to make a bold font.
77 If it fails, it returns nil."
78 (if (font-instance-p font)
79 (let ((name (mswindows-font-canonicalize-name font))
80 (oldwidth (font-instance-width font)))
81 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
82 (let ((newfont (make-font-instance
83 (concat (substring name 0 (match-beginning 1))
84 "Bold" (substring name (match-end 1)))
86 ; Hack! on mswindows, bold fonts (even monospaced) are often wider than the
87 ; equivalent non-bold font. Making the bold font one point smaller usually
88 ; makes it the same width (maybe at the expense of making it one pixel shorter)
89 (if (font-instance-p newfont)
90 (if (> (font-instance-width newfont) oldwidth)
91 (mswindows-find-smaller-font newfont)
94 (defun mswindows-make-font-unbold (font &optional device)
95 "Given a mswindows font specification, this attempts to make a non-bold font.
96 If it fails, it returns nil."
97 (if (font-instance-p font)
98 (let ((name (mswindows-font-canonicalize-name font)))
99 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
100 (make-font-instance (concat
101 (substring name 0 (match-beginning 1))
102 "Normal" (substring name (match-end 1)))
105 (defun mswindows-make-font-italic (font &optional device)
106 "Given a mswindows font specification, this attempts to make an `italic'
107 font. If it fails, it returns nil."
108 (if (font-instance-p font)
109 (let ((name (mswindows-font-canonicalize-name font)))
110 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
111 (make-font-instance (concat
112 (substring name 0 (match-beginning 1))
113 "Italic" (substring name (match-end 1)))
116 (defun mswindows-make-font-unitalic (font &optional device)
117 "Given a mswindows font specification, this attempts to make a non-italic
118 font. If it fails, it returns nil."
119 (if (font-instance-p font)
120 (let ((name (mswindows-font-canonicalize-name font)))
121 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
122 (make-font-instance (concat
123 (substring name 0 (match-beginning 1))
124 "Normal" (substring name (match-end 1)))
127 (defun mswindows-make-font-bold-italic (font &optional device)
128 "Given a mswindows font specification, this attempts to make a `bold-italic'
129 font. If it fails, it returns nil."
130 (if (font-instance-p font)
131 (let ((name (mswindows-font-canonicalize-name font))
132 (oldwidth (font-instance-width font)))
133 (string-match "^[a-zA-Z ]+:\\([a-zA-Z ]*\\):" name)
134 (let ((newfont (make-font-instance
135 (concat (substring name 0 (match-beginning 1))
136 "Bold Italic" (substring name (match-end 1)))
138 ; Hack! on mswindows, bold fonts (even monospaced) are often wider than the
139 ; equivalent non-bold font. Making the bold font one point smaller usually
140 ; makes it the same width (maybe at the expense of making it one pixel shorter)
141 (if (font-instance-p newfont)
142 (if (> (font-instance-width newfont) oldwidth)
143 (mswindows-find-smaller-font newfont)
146 (defun mswindows-find-smaller-font (font &optional device)
147 "Loads a new version of the given font (or font name) 1 point smaller.
148 Returns the font if it succeeds, nil otherwise."
149 (if (font-instance-p font)
150 (let (old-size (name (mswindows-font-canonicalize-name font)))
151 (string-match "^[a-zA-Z ]+:[a-zA-Z ]*:\\([0-9]+\\):" name)
152 (setq old-size (string-to-int
153 (substring name (match-beginning 1) (match-end 1))))
155 (make-font-instance (concat
156 (substring name 0 (match-beginning 1))
157 (int-to-string (- old-size 1))
158 (substring name (match-end 1)))
161 (defun mswindows-find-larger-font (font &optional device)
162 "Loads a new version of the given font (or font name) 1 point larger.
163 Returns the font if it succeeds, nil otherwise."
164 (if (font-instance-p font)
165 (let (old-size (name (mswindows-font-canonicalize-name font)))
166 (string-match "^[a-zA-Z ]+:[a-zA-Z ]*:\\([0-9]+\\):" name)
167 (setq old-size (string-to-int
168 (substring name (match-beginning 1) (match-end 1))))
169 (make-font-instance (concat
170 (substring name 0 (match-beginning 1))
171 (int-to-string (+ old-size 1))
172 (substring name (match-end 1)))