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;;; ps-def.el --- Emacs definitions for ps-print -*- lexical-binding: t -*-
;; Copyright (C) 2007-2020 Free Software Foundation, Inc.
;; Author: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
;; Kenichi Handa <handa@gnu.org> (multi-byte characters)
;; Keywords: wp, print, PostScript
;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
;; Package: ps-print
;; 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 3 of the License, 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. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; See ps-print.el for documentation.
;;; Code:
(declare-function ps-plot-with-face "ps-print" (from to face))
(declare-function ps-plot-string "ps-print" (string))
(defvar ps-bold-faces) ; in ps-print.el
(defvar ps-italic-faces)
;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Emacs Definitions
(defun ps-mark-active-p ()
mark-active)
(defun ps-face-foreground-name (face)
(face-foreground face nil t))
(defun ps-face-background-name (face)
(face-background face nil t))
(defalias 'ps-frame-parameter 'frame-parameter)
;; Return t if the device (which can be changed during an emacs session) can
;; handle colors. This function is not yet implemented for GNU emacs.
(defun ps-color-device ()
(if (fboundp 'color-values)
(funcall 'color-values "Green")
t))
(defun ps-color-values (x-color)
(cond
((fboundp 'color-values)
(funcall 'color-values x-color))
((fboundp 'x-color-values)
(funcall 'x-color-values x-color))
(t
(error "No available function to determine X color values"))))
(defun ps-face-bold-p (face)
(or (face-bold-p face)
(memq face ps-bold-faces)))
(defun ps-face-italic-p (face)
(or (face-italic-p face)
(memq face ps-italic-faces)))
(defun ps-face-strikeout-p (face)
(eq (face-attribute face :strike-through) t))
(defun ps-face-overline-p (face)
(eq (face-attribute face :overline) t))
(defun ps-face-box-p (face)
(not (memq (face-attribute face :box) '(nil unspecified))))
;; Emacs understands the %f format; we'll use it to limit color RGB values
;; to three decimals to cut down some on the size of the PostScript output.
(defvar ps-color-format "%0.3f %0.3f %0.3f")
(defvar ps-float-format "%0.3f ")
(defun ps-generate-postscript-with-faces1 (from to)
;; Generate some PostScript.
(let ((face 'default)
(position to)
;; Emacs
(property-change from)
(overlay-change from)
before-string after-string)
(while (< from to)
(and (< property-change to) ; Don't search for property change
; unless previous search succeeded.
(setq property-change (next-property-change from nil to)))
(and (< overlay-change to) ; Don't search for overlay change
; unless previous search succeeded.
(setq overlay-change (min (next-overlay-change from)
to)))
(setq position (min property-change overlay-change)
before-string nil
after-string nil)
(setq face
(cond ((invisible-p from)
'emacs--invisible--face)
((get-char-property from 'face))
(t 'default)))
;; Plot up to this record.
(and before-string
(ps-plot-string before-string))
(ps-plot-with-face from position face)
(and after-string
(ps-plot-string after-string))
(setq from position))
(ps-plot-with-face from to face)))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(provide 'ps-def)
;;; ps-def.el ends here
|
