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Eric S. Raymond
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lisp/faces.el
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lisp/faces.el
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;;; faces.el --- Lisp interface to the c "face" structure
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;; Copyright (C) 1992, 1993 Free Software Foundation, Inc.
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;; 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
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;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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;;; Commentary:
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;; Mostly derived from Lucid.
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;;; Code:
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(defsubst internal-facep (x)
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(and (vectorp x) (= (length x) 8) (eq (aref x 0) 'face)))
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(defmacro internal-check-face (face)
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(` (while (not (internal-facep (, face)))
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(setq (, face) (signal 'wrong-type-argument (list 'internal-facep (, face)))))))
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(defvar global-face-data nil "do not use this")
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(defun face-list ()
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"Returns a list of all defined face names."
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(mapcar 'car global-face-data))
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(defun internal-find-face (name &optional frame)
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"Retrieve the face named NAME. Return nil if there is no such face.
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If the optional argument FRAME is given, this gets the face NAME for
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that frame; otherwise, it uses the selected frame.
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If FRAME is the symbol t, then the global, non-frame face is returned.
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If NAME is already a face, it is simply returned."
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(if (and (eq frame t) (not (symbolp name)))
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(setq name (face-name name)))
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(if (symbolp name)
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(cdr (assq name
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(if (eq frame t)
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global-face-data
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(frame-face-alist (or frame (selected-frame))))))
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(internal-check-face name)
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name))
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(defun internal-get-face (name &optional frame)
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"Retrieve the face named NAME; error if there is none.
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If the optional argument FRAME is given, this gets the face NAME for
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that frame; otherwise, it uses the selected frame.
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If FRAME is the symbol t, then the global, non-frame face is returned.
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If NAME is already a face, it is simply returned."
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(or (internal-find-face name frame)
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(internal-check-face name)))
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(defsubst face-name (face)
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"Return the name of face FACE."
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(aref (internal-get-face face) 1))
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(defsubst face-id (face)
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"Return the internal ID number of face FACE."
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(aref (internal-get-face face) 2))
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(defsubst face-font (face &optional frame)
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"Return the font name of face FACE, or nil if it is unspecified.
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If the optional argument FRAME is given, report on face FACE in that frame.
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Otherwise report on the defaults for face FACE (for new frames)."
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(aref (internal-get-face face frame) 3))
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(defsubst face-foreground (face &optional frame)
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"Return the foreground color name of face FACE, or nil if unspecified.
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If the optional argument FRAME is given, report on face FACE in that frame.
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Otherwise report on the defaults for face FACE (for new frames)."
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(aref (internal-get-face face frame) 4))
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(defsubst face-background (face &optional frame)
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"Return the background color name of face FACE, or nil if unspecified.
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If the optional argument FRAME is given, report on face FACE in that frame.
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Otherwise report on the defaults for face FACE (for new frames)."
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(aref (internal-get-face face frame) 5))
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(defsubst face-background-pixmap (face &optional frame)
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"Return the background pixmap name of face FACE, or nil if unspecified.
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If the optional argument FRAME is given, report on face FACE in that frame.
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Otherwise report on the defaults for face FACE (for new frames)."
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(aref (internal-get-face face frame) 6))
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(defsubst face-underline-p (face &optional frame)
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"Return t if face FACE is underlined.
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If the optional argument FRAME is given, report on face FACE in that frame.
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Otherwise report on the defaults for face FACE (for new frames)."
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(aref (internal-get-face face frame) 7))
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(defun internat-set-face-1 (face name value index frame)
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(let ((inhibit-quit t))
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(if (null frame)
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(let ((frames (frame-list)))
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(while frames
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(internat-set-face-1 (face-name face) name value index (car frames))
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(setq frames (cdr frames)))
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(aset (internal-get-face (if (symbolp face) face (face-name face)) t)
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index value)
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value)
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(or (eq frame t)
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(set-face-attribute-internal (face-id face) name value frame))
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(aset (internal-get-face face frame) index value))))
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(defun read-face-name (prompt)
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(let (face)
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(while (= (length face) 0)
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(setq face (completing-read prompt
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(mapcar '(lambda (x) (list (symbol-name x)))
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(list-faces))
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nil t)))
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(intern face)))
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(defun internal-face-interactive (what &optional bool)
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(let* ((fn (intern (concat "face-" what)))
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(prompt (concat "Set " what " of face"))
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(face (read-face-name (concat prompt ": ")))
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(default (if (fboundp fn)
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(or (funcall fn face (selected-frame))
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(funcall fn 'default (selected-frame)))))
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(value (if bool
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(y-or-n-p (concat "Should face " (symbol-name face)
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" be " bool "? "))
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(read-string (concat prompt " " (symbol-name face) " to: ")
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default))))
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(list face (if (equal value "") nil value))))
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(defsubst set-face-font (face font &optional frame)
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"Change the font of face FACE to FONT (a string).
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If the optional FRAME argument is provided, change only
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in that frame; otherwise change each frame."
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(interactive (internal-face-interactive "font"))
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(internat-set-face-1 face 'font font 3 frame))
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(defsubst set-face-foreground (face color &optional frame)
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"Change the foreground color of face FACE to COLOR (a string).
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If the optional FRAME argument is provided, change only
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in that frame; otherwise change each frame."
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(interactive (internal-face-interactive "foreground"))
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(internat-set-face-1 face 'foreground color 4 frame))
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(defsubst set-face-background (face color &optional frame)
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"Change the background color of face FACE to COLOR (a string).
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If the optional FRAME argument is provided, change only
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in that frame; otherwise change each frame."
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(interactive (internal-face-interactive "background"))
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(internat-set-face-1 face 'background color 5 frame))
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(defsubst set-face-background-pixmap (face name &optional frame)
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"Change the background pixmap of face FACE to PIXMAP.
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PIXMAP should be a string, the name of a file of pixmap data.
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The directories listed in the `x-bitmap-file-path' variable are searched.
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Alternatively, PIXMAP may be a list of the form (WIDTH HEIGHT DATA)
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where WIDTH and HEIGHT are the size in pixels,
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and DATA is a string, containing the raw bits of the bitmap.
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If the optional FRAME argument is provided, change only
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in that frame; otherwise change each frame."
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(interactive (internal-face-interactive "background-pixmap"))
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(internat-set-face-1 face 'background-pixmap name 6 frame))
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(defsubst set-face-underline-p (face underline-p &optional frame)
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"Specify whether face FACE is underlined. (Yes if UNDERLINE-P is non-nil.)
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If the optional FRAME argument is provided, change only
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in that frame; otherwise change each frame."
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(interactive (internal-face-interactive "underline-p" "underlined"))
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(internat-set-face-1 face 'underline underline-p 7 frame))
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(defun make-face (name)
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"Define a new FACE on all frames.
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You can modify the font, color, etc of this face with the set-face- functions.
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If the face already exists, it is unmodified."
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(or (internal-find-face name)
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(let ((face (make-vector 8 nil)))
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(aset face 0 'face)
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(aset face 1 name)
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(let* ((frames (frame-list))
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(inhibit-quit t)
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(id (internal-next-face-id)))
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(make-face-internal id)
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(aset face 2 id)
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(while frames
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(set-frame-face-alist (car frames)
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(cons (cons name (copy-sequence face))
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(frame-face-alist (car frames))))
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(setq frames (cdr frames)))
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(setq global-face-data (cons (cons name face) global-face-data)))
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;; when making a face after frames already exist
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(if (eq window-system 'x)
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(make-face-x-resource-internal face))
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face)))
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;; Fill in a face by default based on X resources, for all existing frames.
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;; This has to be done when a new face is made.
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(defun make-face-x-resource-internal (face &optional frame set-anyway)
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(cond ((null frame)
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(let ((frames (frame-list)))
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(while frames
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(make-face-x-resource-internal (face-name face)
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(car frames) set-anyway)
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(setq frames (cdr frames)))))
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(t
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(setq face (internal-get-face (face-name face) frame))
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;;
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;; These are things like "attributeForeground" instead of simply
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;; "foreground" because people tend to do things like "*foreground",
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;; which would cause all faces to be fully qualified, making faces
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;; inherit attributes in a non-useful way. So we've made them slightly
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;; less obvious to specify in order to make them work correctly in
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;; more random environments.
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;;
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;; I think these should be called "face.faceForeground" instead of
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;; "face.attributeForeground", but they're the way they are for
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;; hysterical reasons.
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;;
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(let* ((name (symbol-name (face-name face)))
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(fn (or (x-get-resource (concat name ".attributeFont")
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"Face.AttributeFont")
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(and set-anyway (face-font face))))
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(fg (or (x-get-resource (concat name ".attributeForeground")
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"Face.AttributeForeground")
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(and set-anyway (face-foreground face))))
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(bg (or (x-get-resource (concat name ".attributeBackground")
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"Face.AttributeBackground")
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(and set-anyway (face-background face))))
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;; (bgp (or (x-get-resource (concat name ".attributeBackgroundPixmap")
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;; "Face.AttributeBackgroundPixmap")
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;; (and set-anyway (face-background-pixmap face))))
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(ulp (or (x-get-resource (concat name ".attributeUnderline")
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"Face.AttributeUnderline")
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(and set-anyway (face-underline-p face))))
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)
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(if fn
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(condition-case ()
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(set-face-font face fn frame)
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(error (message "font `%s' not found for face `%s'" fn name))))
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(if fg
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(condition-case ()
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(set-face-foreground face fg frame)
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(error (message "color `%s' not allocated for face `%s'" fg name))))
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(if bg
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(condition-case ()
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(set-face-background face bg frame)
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(error (message "color `%s' not allocated for face `%s'" bg name))))
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;; (if bgp
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;; (condition-case ()
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;; (set-face-background-pixmap face bgp frame)
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;; (error (message "pixmap `%s' not found for face `%s'" bgp name))))
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(if (or ulp set-anyway)
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(set-face-underline-p face ulp frame))
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)))
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face)
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(defun copy-face (old-face new-name &optional frame)
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"Define a face just like OLD-FACE, with name NEW-NAME.
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If NEW-NAME already exists as a face, it is modified to be like OLD-FACE.
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If the optional argument FRAME is given, this applies only to that frame.
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Otherwise it applies to each frame separately."
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(setq old-face (internal-get-face old-face frame))
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(let* ((inhibit-quit t)
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(new-face (or (internal-find-face new-name frame)
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(make-face new-name))))
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(if (null frame)
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(let ((frames (frame-list)))
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(while frames
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(copy-face old-face new-name (car frames))
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(setq frames (cdr frames)))
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(copy-face old-face new-name t))
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(set-face-font new-face (face-font old-face frame) frame)
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(set-face-foreground new-face (face-foreground old-face frame) frame)
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(set-face-background new-face (face-background old-face frame) frame)
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(set-face-background-pixmap
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new-face (face-background-pixmap old-face frame) frame)
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(set-face-underline-p new-face (face-underline-p old-face frame)
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frame))
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new-face))
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(defun face-equal (face1 face2 &optional frame)
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"True if the faces FACE1 and FACE2 display in the the same way."
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(setq face1 (internal-get-face face1 frame)
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face2 (internal-get-face face2 frame))
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(and (equal (face-foreground face1 frame) (face-foreground face2 frame))
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(equal (face-background face1 frame) (face-background face2 frame))
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(equal (face-font face1 frame) (face-font face2 frame))
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(equal (face-background-pixmap face1 frame)
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(face-background-pixmap face2 frame))))
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(defun face-differs-from-default-p (face &optional frame)
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"True if face FACE displays differently from the default face, on FRAME.
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A face is considered to be ``the same'' as the default face if it is
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actually specified in the same way (equivalent fonts, etc) or if it is
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fully unspecified, and thus inherits the attributes of any face it
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is displayed on top of."
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(let ((default (internal-get-face 'default frame)))
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(setq face (internal-get-face face frame))
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(not (and (or (equal (face-foreground default frame)
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(face-foreground face frame))
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(null (face-foreground face frame)))
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(or (equal (face-background default frame)
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(face-background face frame))
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(null (face-background face frame)))
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(or (equal (face-font default frame) (face-font face frame))
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(null (face-font face frame)))
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(or (equal (face-background-pixmap default frame)
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(face-background-pixmap face frame))
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(null (face-background-pixmap face frame)))
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(equal (face-underline-p default frame)
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(face-underline-p face frame))
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))))
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(defun invert-face (face &optional frame)
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"Swap the foreground and background colors of face FACE.
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If the face doesn't specify both foreground and background, then
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its foreground and background are set to the background and
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foreground of the default face."
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(interactive (list (read-face-name "Invert face: ")))
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(setq face (internal-get-face face frame))
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(let ((fg (face-foreground face frame))
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(bg (face-background face frame)))
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(if (or fg bg)
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(progn
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(set-face-foreground face bg frame)
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(set-face-background face fg frame))
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(set-face-foreground face (face-background 'default frame) frame)
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(set-face-background face (face-foreground 'default frame) frame)))
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face)
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(defun internal-try-face-font (face font &optional frame)
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"Like set-face-font, but returns nil on failure instead of an error."
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(condition-case ()
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(set-face-font face font frame)
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(error nil)))
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(defun set-default-font (font)
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"Sets the font used for normal text and the modeline to FONT in all frames.
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For finer-grained control, use set-face-font."
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(interactive (list (read-string "Set default font: "
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(face-font 'default (selected-frame)))))
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(set-face-font 'default font)
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(set-face-font 'modeline font))
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;; Manipulating font names.
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(defconst x-font-regexp nil)
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(defconst x-font-regexp-head nil)
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(defconst x-font-regexp-weight nil)
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(defconst x-font-regexp-slant nil)
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;;; Regexps matching font names in "Host Portable Character Representation."
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;;;
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(let ((- "[-?]")
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(foundry "[^-]+")
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(family "[^-]+")
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(weight "\\(bold\\|demibold\\|medium\\)") ; 1
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; (weight\? "\\(\\*\\|bold\\|demibold\\|medium\\|\\)") ; 1
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(weight\? "\\([^-]*\\)") ; 1
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(slant "\\([ior]\\)") ; 2
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; (slant\? "\\([ior?*]?\\)") ; 2
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(slant\? "\\([^-]?\\)") ; 2
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; (swidth "\\(\\*\\|normal\\|semicondensed\\|\\)") ; 3
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(swidth "\\([^-]*\\)") ; 3
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; (adstyle "\\(\\*\\|sans\\|\\)") ; 4
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(adstyle "[^-]*") ; 4
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(pixelsize "[0-9]+")
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(pointsize "[0-9][0-9]+")
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(resx "[0-9][0-9]+")
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(resy "[0-9][0-9]+")
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(spacing "[cmp?*]")
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(avgwidth "[0-9]+")
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(registry "[^-]+")
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(encoding "[^-]+")
|
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)
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(setq x-font-regexp
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(concat "\\`\\*?[-?*]"
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foundry - family - weight\? - slant\? - swidth - adstyle -
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pixelsize - pointsize - resx - resy - spacing - registry -
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encoding "[-?*]\\*?\\'"
|
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))
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(setq x-font-regexp-head
|
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(concat "\\`[-?*]" foundry - family - weight\? - slant\?
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"\\([-*?]\\|\\'\\)"))
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(setq x-font-regexp-slant (concat - slant -))
|
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(setq x-font-regexp-weight (concat - weight -))
|
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nil)
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(defun x-frob-font-weight (font which)
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(if (or (string-match x-font-regexp font)
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(string-match x-font-regexp-head font)
|
||||
(string-match x-font-regexp-weight font))
|
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(concat (substring font 0 (match-beginning 1)) which
|
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(substring font (match-end 1)))
|
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nil))
|
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|
||||
(defun x-frob-font-slant (font which)
|
||||
(cond ((or (string-match x-font-regexp font)
|
||||
(string-match x-font-regexp-head font))
|
||||
(concat (substring font 0 (match-beginning 2)) which
|
||||
(substring font (match-end 2))))
|
||||
((string-match x-font-regexp-slant font)
|
||||
(concat (substring font 0 (match-beginning 1)) which
|
||||
(substring font (match-end 1))))
|
||||
(t nil)))
|
||||
|
||||
|
||||
(defun x-make-font-bold (font)
|
||||
"Given an X font specification, this attempts to make a `bold' version
|
||||
of it. If it fails, it returns nil."
|
||||
(x-frob-font-weight font "bold"))
|
||||
|
||||
(defun x-make-font-demibold (font)
|
||||
"Given an X font specification, this attempts to make a `demibold' version
|
||||
of it. If it fails, it returns nil."
|
||||
(x-frob-font-weight font "demibold"))
|
||||
|
||||
(defun x-make-font-unbold (font)
|
||||
"Given an X font specification, this attempts to make a non-bold version
|
||||
of it. If it fails, it returns nil."
|
||||
(x-frob-font-weight font "medium"))
|
||||
|
||||
(defun x-make-font-italic (font)
|
||||
"Given an X font specification, this attempts to make an `italic' version
|
||||
of it. If it fails, it returns nil."
|
||||
(x-frob-font-slant font "i"))
|
||||
|
||||
(defun x-make-font-oblique (font) ; you say tomayto...
|
||||
"Given an X font specification, this attempts to make an `italic' version
|
||||
of it. If it fails, it returns nil."
|
||||
(x-frob-font-slant font "o"))
|
||||
|
||||
(defun x-make-font-unitalic (font)
|
||||
"Given an X font specification, this attempts to make a non-italic version
|
||||
of it. If it fails, it returns nil."
|
||||
(x-frob-font-slant font "r"))
|
||||
|
||||
|
||||
;;; non-X-specific interface
|
||||
|
||||
(defun make-face-bold (face &optional frame)
|
||||
"Make the font of the given face be bold, if possible.
|
||||
Returns nil on failure."
|
||||
(interactive (list (read-face-name "Make which face bold: ")))
|
||||
(let ((ofont (face-font face frame)))
|
||||
(if (null frame)
|
||||
(let ((frames (frame-list)))
|
||||
(while frames
|
||||
(make-face-bold face (car frames))
|
||||
(setq frames (cdr frames))))
|
||||
(setq face (internal-get-face face frame))
|
||||
(let ((font (or (face-font face frame)
|
||||
(face-font face t)
|
||||
(face-font 'default frame)))
|
||||
f2)
|
||||
(or (and (setq f2 (x-make-font-bold font))
|
||||
(try-face-font face f2))
|
||||
(and (setq f2 (x-make-font-demibold font))
|
||||
(try-face-font face f2)))))
|
||||
(not (equal ofont (face-font face)))))
|
||||
|
||||
(defun make-face-italic (face &optional frame)
|
||||
"Make the font of the given face be italic, if possible.
|
||||
Returns nil on failure."
|
||||
(interactive (list (read-face-name "Make which face italic: ")))
|
||||
(let ((ofont (face-font face frame)))
|
||||
(if (null frame)
|
||||
(let ((frames (frame-list)))
|
||||
(while frames
|
||||
(make-face-italic face (car frames))
|
||||
(setq frames (cdr frames))))
|
||||
(setq face (internal-get-face face frame))
|
||||
(let ((font (or (face-font face frame)
|
||||
(face-font face t)
|
||||
(face-font 'default frame)))
|
||||
f2)
|
||||
(or (and (setq f2 (x-make-font-italic font))
|
||||
(try-face-font face f2))
|
||||
(and (setq f2 (x-make-font-oblique font))
|
||||
(try-face-font face f2)))))
|
||||
(not (equal ofont (face-font face)))))
|
||||
|
||||
(defun make-face-bold-italic (face &optional frame)
|
||||
"Make the font of the given face be bold and italic, if possible.
|
||||
Returns nil on failure."
|
||||
(interactive (list (read-face-name "Make which face bold-italic: ")))
|
||||
(let ((ofont (face-font face frame)))
|
||||
(if (null frame)
|
||||
(let ((frames (frame-list)))
|
||||
(while frames
|
||||
(make-face-bold-italic face (car frames))
|
||||
(setq frames (cdr frames))))
|
||||
(setq face (internal-get-face face frame))
|
||||
(let ((font (or (face-font face frame)
|
||||
(face-font face t)
|
||||
(face-font 'default frame)))
|
||||
f2 f3)
|
||||
(or (and (setq f2 (x-make-font-italic font))
|
||||
(not (equal font f2))
|
||||
(setq f3 (x-make-font-bold f2))
|
||||
(not (equal f2 f3))
|
||||
(try-face-font face f3))
|
||||
(and (setq f2 (x-make-font-oblique font))
|
||||
(not (equal font f2))
|
||||
(setq f3 (x-make-font-bold f2))
|
||||
(not (equal f2 f3))
|
||||
(try-face-font face f3))
|
||||
(and (setq f2 (x-make-font-italic font))
|
||||
(not (equal font f2))
|
||||
(setq f3 (x-make-font-demibold f2))
|
||||
(not (equal f2 f3))
|
||||
(try-face-font face f3))
|
||||
(and (setq f2 (x-make-font-oblique font))
|
||||
(not (equal font f2))
|
||||
(setq f3 (x-make-font-demibold f2))
|
||||
(not (equal f2 f3))
|
||||
(try-face-font face f3)))))
|
||||
(not (equal ofont (face-font face frame)))))
|
||||
|
||||
(defun make-face-unbold (face &optional frame)
|
||||
"Make the font of the given face be non-bold, if possible.
|
||||
Returns nil on failure."
|
||||
(interactive (list (read-face-name "Make which face non-bold: ")))
|
||||
(let ((ofont (face-font face frame)))
|
||||
(if (null frame)
|
||||
(let ((frames (frame-list)))
|
||||
(while frames
|
||||
(make-face-unbold face (car frames))
|
||||
(setq frames (cdr frames))))
|
||||
(setq face (internal-get-face face frame))
|
||||
(let ((font (x-make-font-unbold
|
||||
(or (face-font face frame)
|
||||
(face-font face t)
|
||||
(face-font 'default frame)))))
|
||||
(if font (try-face-font face font))))
|
||||
(not (equal ofont (face-font face frame)))))
|
||||
|
||||
(defun make-face-unitalic (face &optional frame)
|
||||
"Make the font of the given face be non-italic, if possible.
|
||||
Returns nil on failure."
|
||||
(interactive (list (read-face-name "Make which face non-italic: ")))
|
||||
(let ((ofont (face-font face frame)))
|
||||
(if (null frame)
|
||||
(let ((frames (frame-list)))
|
||||
(while frames
|
||||
(make-face-unitalic face (car frames))
|
||||
(setq frames (cdr frames))))
|
||||
(setq face (internal-get-face face frame))
|
||||
(let ((font (x-make-font-unitalic
|
||||
(or (face-font face frame)
|
||||
(face-font face t)
|
||||
(face-font 'default frame)))))
|
||||
(if font (try-face-font face font))))
|
||||
(not (equal ofont (face-font face frame)))))
|
||||
|
||||
|
||||
|
||||
|
||||
;;; Make the builtin faces; the C code knows these as faces 0, 1, and 2,
|
||||
;;; respectively, so they must be the first three faces made.
|
||||
|
||||
(if (internal-find-face 'default)
|
||||
nil
|
||||
(make-face 'default)
|
||||
(make-face 'modeline)
|
||||
(make-face 'highlight)
|
||||
;;
|
||||
;; These aren't really special in any way, but they're nice to have around.
|
||||
;; The X-specific code is clever at them.
|
||||
;;
|
||||
(make-face 'bold)
|
||||
(make-face 'italic)
|
||||
(make-face 'bold-italic)
|
||||
(make-face 'primary-selection)
|
||||
(make-face 'secondary-selection))
|
||||
|
||||
;;; This really belongs in setting a frame's own font.
|
||||
;;; ;;
|
||||
;;; ;; No font specified in the resource database; try to cope.
|
||||
;;; ;;
|
||||
;;; (internal-try-face-font default "-*-courier-medium-r-*-*-*-120-*-*-*-*-iso8859-*"
|
||||
;;; frame)
|
||||
;;; (internal-try-face-font default "-*-courier-*-r-*-*-*-120-*-*-*-*-iso8859-*"
|
||||
;;; frame)
|
||||
;;; (internal-try-face-font default "-*-*-medium-r-*-*-*-120-*-*-m-*-iso8859-*" frame)
|
||||
;;; (internal-try-face-font default "-*-*-medium-r-*-*-*-120-*-*-c-*-iso8859-*" frame)
|
||||
;;; (internal-try-face-font default "-*-*-*-r-*-*-*-120-*-*-m-*-iso8859-*" frame)
|
||||
;;; (internal-try-face-font default "-*-*-*-r-*-*-*-120-*-*-c-*-iso8859-*" frame)
|
||||
;;; (internal-try-face-font default "-*-*-*-r-*-*-*-120-*-*-*-*-iso8859-*" frame)
|
||||
|
||||
|
||||
;;; This is called from make-screen-initial-faces to make sure that the
|
||||
;;; "default" and "modeline" faces for this screen have enough attributes
|
||||
;;; specified for emacs to be able to display anything on it. This had
|
||||
;;; better not signal an error.
|
||||
;;;
|
||||
(defun x-initialize-frame-faces (frame)
|
||||
(or (face-differs-from-default-p 'bold frame)
|
||||
(make-face-bold 'bold frame)
|
||||
;; if default font is bold, then make the `bold' face be unbold.
|
||||
(make-face-unbold 'bold frame)
|
||||
;; otherwise the luser specified one of the bogus font names
|
||||
(internal-x-complain-about-font 'bold)
|
||||
)
|
||||
|
||||
(or (face-differs-from-default-p 'italic frame)
|
||||
(make-face-italic 'italic frame)
|
||||
(progn
|
||||
(make-face-bold 'italic frame)
|
||||
(internal-x-complain-about-font 'italic))
|
||||
)
|
||||
|
||||
(or (face-differs-from-default-p 'bold-italic frame)
|
||||
(make-face-bold-italic 'bold-italic frame)
|
||||
;; if we couldn't get a bold-italic version, try just bold.
|
||||
(make-face-bold 'bold-italic frame)
|
||||
;; if we couldn't get bold or bold-italic, then that's probably because
|
||||
;; the default font is bold, so make the `bold-italic' face be unbold.
|
||||
(and (make-face-unbold 'bold-italic frame)
|
||||
(make-face-italic 'bold-italic frame))
|
||||
;; if that didn't work, try italic (can this ever happen? what the hell.)
|
||||
(progn
|
||||
(make-face-italic 'bold-italic frame)
|
||||
;; then bitch and moan.
|
||||
(internal-x-complain-about-font 'bold-italic))
|
||||
)
|
||||
|
||||
(or (face-differs-from-default-p 'highlight frame)
|
||||
(condition-case ()
|
||||
(if (x-display-color-p)
|
||||
(condition-case ()
|
||||
(set-face-background 'highlight "darkseagreen2" frame)
|
||||
(error (set-face-background 'highlight "green" frame)))
|
||||
(set-face-background-pixmap 'highlight "gray1" frame)
|
||||
)
|
||||
(error (invert-face 'highlight frame))))
|
||||
|
||||
(or (face-differs-from-default-p 'primary-selection frame)
|
||||
(condition-case ()
|
||||
(if (x-display-color-p)
|
||||
(set-face-background 'primary-selection "gray" frame)
|
||||
(set-face-background-pixmap 'primary-selection "gray3" frame)
|
||||
)
|
||||
(error (invert-face 'primary-selection frame))))
|
||||
|
||||
(or (face-differs-from-default-p 'secondary-selection frame)
|
||||
(condition-case ()
|
||||
(if (x-display-color-p)
|
||||
(condition-case ()
|
||||
;; some older X servers don't have this one.
|
||||
(set-face-background 'secondary-selection "paleturquoise"
|
||||
frame)
|
||||
(error
|
||||
(set-face-background 'secondary-selection "green" frame)))
|
||||
(set-face-background-pixmap 'secondary-selection "gray1" frame)
|
||||
)
|
||||
(error (invert-face 'secondary-selection frame))))
|
||||
|
||||
(or (face-differs-from-default-p 'isearch frame)
|
||||
(if (x-display-color-p)
|
||||
(condition-case ()
|
||||
(set-face-background 'isearch "paleturquoise" frame)
|
||||
(error
|
||||
(condition-case ()
|
||||
(set-face-background 'isearch "green" frame)
|
||||
(error nil))))
|
||||
nil)
|
||||
(make-face-bold 'isearch frame)
|
||||
;; if default font is bold, then make the `isearch' face be unbold.
|
||||
(make-face-unbold 'isearch frame))
|
||||
))
|
||||
|
||||
(defun internal-x-complain-about-font (face)
|
||||
(if (symbolp face) (setq face (symbol-name face)))
|
||||
(message "%s: couldn't deduce %s %s version of %S\n"
|
||||
invocation-name
|
||||
(if (string-match "\\`[aeiouAEIOU]" face) "an" "a")
|
||||
face
|
||||
(face-font 'default))
|
||||
(sit-for 1))
|
||||
|
||||
;; Like x-create-frame but also set up the faces.
|
||||
|
||||
(defun x-create-frame-with-faces (&optional parameters)
|
||||
(let* ((frame (x-create-frame parameters))
|
||||
(faces (copy-alist global-face-data))
|
||||
(rest faces)
|
||||
default modeline)
|
||||
(set-frame-face-alist frame faces)
|
||||
|
||||
;; Copy the vectors that represent the faces.
|
||||
;; Also fill them in from X resources.
|
||||
(while rest
|
||||
(setcdr (car rest) (copy-sequence (cdr (car rest))))
|
||||
(make-face-x-resource-intenal (cdr (car rest)) frame t)
|
||||
(setq rest (cdr rest)))
|
||||
|
||||
(setq default (internal-get-face 'default frame)
|
||||
modeline (internal-get-face 'modeline frame))
|
||||
|
||||
(x-initialize-frame-faces frame)
|
||||
|
||||
;; Make sure the modeline face is fully qualified.
|
||||
(if (and (not (face-font modeline frame)) (face-font default frame))
|
||||
(set-face-font modeline (face-font default frame) frame))
|
||||
(if (and (not (face-background modeline frame))
|
||||
(face-background default frame))
|
||||
(set-face-background modeline (face-background default frame) frame))
|
||||
(if (and (not (face-foreground modeline frame))
|
||||
(face-foreground default frame))
|
||||
(set-face-foreground modeline (face-foreground default frame) frame))
|
||||
frame))
|
||||
|
||||
(setq frame-creation-function 'x-create-frame-with-faces)
|
||||
|
||||
;; Set up the faces of all existing frames.
|
||||
(let ((frames (frame-list)))
|
||||
(while frames
|
||||
(x-initialize-frame-faces (car frames))
|
||||
(setq frames (cdr frames))))
|
||||
|
||||
;;; faces.el ends here
|
||||
108
lisp/help-macro.el
Normal file
108
lisp/help-macro.el
Normal file
|
|
@ -0,0 +1,108 @@
|
|||
;;; help-screen.el --- Makes command line help such as help-for-help
|
||||
|
||||
;; Copyright (C) 1993 Free Software Foundation, Inc.
|
||||
|
||||
;; Author: Lynn Slater <lrs@indetech.com>
|
||||
;; Created: : Mon Oct 1 11:42:39 1990
|
||||
;; Adapted-By: ESR
|
||||
;; Last Modified By: Lynn Slater x2048
|
||||
;; Last Modified On: Mon Sep 23 14:40:19 1991
|
||||
|
||||
;; This file is part of GNU Emacs.
|
||||
|
||||
;; GNU Emacs is free software; you can redistribute it and/or modify
|
||||
;; it under the terms of the GNU General Public License as published by
|
||||
;; the Free Software Foundation; either version 2, or (at your option)
|
||||
;; any later version.
|
||||
|
||||
;; GNU Emacs 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 General Public License for more details.
|
||||
|
||||
;; You should have received a copy of the GNU General Public License
|
||||
;; along with GNU Emacs; see the file COPYING. If not, write to
|
||||
;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
;;; Commentary:
|
||||
;;
|
||||
;; This file supplies the macro make-help-screen which constructs
|
||||
;; single character dispatching with browsable help such as that provided
|
||||
;; by help-for-help. This can be used to make many modes easier to use; for
|
||||
;; example, the Gnu Emacs Empire Tool uses this for every "nested" mode map
|
||||
;; called from the main mode map.
|
||||
|
||||
;;-> *********************** Example of use *********************************
|
||||
|
||||
;;->(make-help-screen help-for-empire-redistribute-map
|
||||
;;-> "c:civ m:mil p:population f:food ?"
|
||||
;;-> "You have discovered the GEET redistribution commands
|
||||
;;-> From here, you can use the following options:
|
||||
;;->
|
||||
;;->c Redistribute civs from overfull sectors into connected underfull ones
|
||||
;;-> The functions typically named by empire-ideal-civ-fcn control
|
||||
;;-> based in part on empire-sector-civ-threshold
|
||||
;;->m Redistribute military using levels given by empire-ideal-mil-fcn
|
||||
;;->p Redistribute excess population to highways for max pop growth
|
||||
;;-> Excess is any sector so full babies will not be born.
|
||||
;;->f Even out food on highways to highway min and leave levels
|
||||
;;-> This is good to pump max food to all warehouses/dist pts
|
||||
;;->
|
||||
;;->
|
||||
;;->Use \\[help-for-empire-redistribute-map] for help on redistribution.
|
||||
;;->Use \\[help-for-empire-extract-map] for help on data extraction.
|
||||
;;->Please use \\[describe-key] to find out more about any of the other keys."
|
||||
;;-> empire-shell-redistribute-map)
|
||||
|
||||
;;-> (define-key c-mp "\C-h" 'help-for-empire-redistribute-map)
|
||||
;;-> (define-key c-mp help-character 'help-for-empire-redistribute-map)
|
||||
|
||||
;;; Change Log:
|
||||
;;
|
||||
;; 22-Jan-1991 Lynn Slater x2048
|
||||
;; Last Modified: Mon Oct 1 11:43:52 1990 #3 (Lynn Slater)
|
||||
;; documented better
|
||||
|
||||
;;; Code:
|
||||
|
||||
(provide 'help-screen)
|
||||
(require 'backquote)
|
||||
|
||||
(defmacro make-help-screen (fname help-line help-text helped-map)
|
||||
"Constructs function FNAME that when invoked shows HELP-LINE and if a help
|
||||
character is requested, shows HELP-TEXT. The user is prompted for a character
|
||||
from the HELPED-MAP and the corresponding interactive function is executed."
|
||||
(` (defun (, fname) ()
|
||||
(, help-text)
|
||||
(interactive)
|
||||
(let ((line-prompt
|
||||
(substitute-command-keys (, help-line))))
|
||||
(message line-prompt)
|
||||
(let ((char (read-char)))
|
||||
(if (or (= char ??) (= char help-char))
|
||||
(save-window-excursion
|
||||
(switch-to-buffer-other-window "*Help*")
|
||||
(erase-buffer)
|
||||
(insert (documentation (quote (, fname))))
|
||||
(goto-char (point-min))
|
||||
(while (memq char (cons help-char '(?? ?\C-v ?\ ?\177 ?\M-v)))
|
||||
(if (memq char '(?\C-v ?\ ))
|
||||
(scroll-up))
|
||||
(if (memq char '(?\177 ?\M-v))
|
||||
(scroll-down))
|
||||
(message "%s%s: "
|
||||
line-prompt
|
||||
(if (pos-visible-in-window-p (point-max))
|
||||
"" " or Space to scroll"))
|
||||
(let ((cursor-in-echo-area t))
|
||||
(setq char (read-char))))))
|
||||
(let ((defn (cdr (assq (downcase char) (, helped-map)))))
|
||||
(if defn
|
||||
(if (keymapp defn)
|
||||
(error "sorry, this command cannot be run from the help screen. Start over.")
|
||||
(call-interactively defn))
|
||||
(ding))))))
|
||||
))
|
||||
|
||||
;;; help-screen.el
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue