134 lines
3.8 KiB
EmacsLisp
134 lines
3.8 KiB
EmacsLisp
;;; ps-def.el --- Emacs definitions for ps-print -*- lexical-binding: t -*-
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;; Copyright (C) 2007-2020 Free Software Foundation, Inc.
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;; Author: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
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;; Kenichi Handa <handa@gnu.org> (multi-byte characters)
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;; Keywords: wp, print, PostScript
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;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
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;; Package: ps-print
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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 3 of the License, or
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;; (at your option) 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. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; See ps-print.el for documentation.
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;;; Code:
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(declare-function ps-plot-with-face "ps-print" (from to face))
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(declare-function ps-plot-string "ps-print" (string))
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(defvar ps-bold-faces) ; in ps-print.el
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(defvar ps-italic-faces)
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;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Emacs Definitions
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(defun ps-mark-active-p ()
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mark-active)
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(defun ps-face-foreground-name (face)
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(face-foreground face nil t))
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(defun ps-face-background-name (face)
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(face-background face nil t))
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(define-obsolete-function-alias 'ps-frame-parameter #'frame-parameter "28.1")
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;; Return t if the device (which can be changed during an emacs session) can
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;; handle colors.
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(defun ps-color-device ()
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(color-values "Green"))
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(define-obsolete-function-alias 'ps-color-values #'color-values "28.1")
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(defun ps-face-bold-p (face)
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(or (face-bold-p face)
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(memq face ps-bold-faces)))
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(defun ps-face-italic-p (face)
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(or (face-italic-p face)
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(memq face ps-italic-faces)))
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(defun ps-face-strikeout-p (face)
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(eq (face-attribute face :strike-through) t))
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(defun ps-face-overline-p (face)
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(eq (face-attribute face :overline) t))
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(defun ps-face-box-p (face)
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(not (memq (face-attribute face :box) '(nil unspecified))))
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;; Emacs understands the %f format; we'll use it to limit color RGB values
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;; to three decimals to cut down some on the size of the PostScript output.
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(defvar ps-color-format "%0.3f %0.3f %0.3f")
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(defvar ps-float-format "%0.3f ")
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(defun ps-generate-postscript-with-faces1 (from to)
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;; Generate some PostScript.
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(let ((face 'default)
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(position to)
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;; Emacs
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(property-change from)
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(overlay-change from)
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before-string after-string)
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(while (< from to)
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(and (< property-change to) ; Don't search for property change
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; unless previous search succeeded.
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(setq property-change (next-property-change from nil to)))
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(and (< overlay-change to) ; Don't search for overlay change
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; unless previous search succeeded.
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(setq overlay-change (min (next-overlay-change from)
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to)))
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(setq position (min property-change overlay-change)
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before-string nil
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after-string nil)
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(setq face
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(cond ((invisible-p from)
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'emacs--invisible--face)
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((get-char-property from 'face))
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(t 'default)))
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;; Plot up to this record.
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(and before-string
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(ps-plot-string before-string))
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(ps-plot-with-face from position face)
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(and after-string
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(ps-plot-string after-string))
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(setq from position))
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(ps-plot-with-face from to face)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(provide 'ps-def)
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;;; ps-def.el ends here
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