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251 lines
9.0 KiB
EmacsLisp
251 lines
9.0 KiB
EmacsLisp
;;; mh-print.el --- MH-E printing support
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;; Copyright (C) 2003-2015 Free Software Foundation, Inc.
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;; Author: Jeffrey C Honig <jch@honig.net>
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;; Maintainer: Bill Wohler <wohler@newt.com>
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;; Keywords: mail
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;; See: mh-e.el
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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 <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Change Log:
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;;; Code:
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(require 'mh-e)
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(require 'mh-scan)
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(require 'ps-print)
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(defvar mh-ps-print-color-option ps-print-color-p
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"Specify how buffer's text color is printed.
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Valid values are:
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nil - Do not print colors.
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t - Print colors.
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black-white - Print colors on black/white printer.
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See also `ps-black-white-faces'.
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Any other value is treated as t. This variable is initialized
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from `ps-print-color-p'.")
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(defvar mh-ps-print-func 'ps-spool-buffer-with-faces
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"Function to use to spool a buffer.
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Sensible choices are the functions `ps-spool-buffer' and
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`ps-spool-buffer-with-faces'.")
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;;;###mh-autoload
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(defun mh-ps-print-msg (range)
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"Print RANGE\\<mh-folder-mode-map>.
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Check the documentation of `mh-interactive-range' to see how RANGE is
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read in interactive use.
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This command will print inline text attachments but will not decrypt
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messages. However, when a message is displayed in an MH-Show buffer,
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then that buffer is used verbatim for printing with the caveat that
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only text attachments, if opened inline, are printed. Therefore,
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encrypted messages can be printed by showing and decrypting them
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first.
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MH-E uses the \"ps-print\" package to do the printing, so you can
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customize the printing further by going to the `ps-print'
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customization group. This command does not use the options
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`mh-lpr-command-format' or `mh-print-background-flag'. See also the
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commands \\[mh-ps-print-toggle-color] and
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\\[mh-ps-print-toggle-faces]."
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(interactive (list (mh-interactive-range "Print")))
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(mh-ps-print-range range nil))
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(defun mh-ps-print-range (range file)
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"Print RANGE to FILE.
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This is the function that actually does the work.
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If FILE is nil, then the messages are spooled to the printer."
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(mh-iterate-on-range msg range
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(unwind-protect
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(mh-ps-spool-msg msg))
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(mh-notate msg mh-note-printed mh-cmd-note))
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(ps-despool file))
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(defun mh-ps-spool-msg (msg)
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"Spool MSG."
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(let* ((folder mh-current-folder)
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(buffer (mh-in-show-buffer (mh-show-buffer)
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(if (not (equal (mh-msg-filename msg folder)
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buffer-file-name))
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(get-buffer-create mh-temp-buffer)))))
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(unwind-protect
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(save-excursion
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(if buffer
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(let ((mh-show-buffer buffer))
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(mh-display-msg msg folder)))
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(mh-ps-spool-buffer (if buffer buffer mh-show-buffer)))
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(if buffer
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(kill-buffer buffer)))))
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(defun mh-ps-spool-buffer (buffer)
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"Spool BUFFER."
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(with-current-buffer buffer
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(let ((ps-print-color-p mh-ps-print-color-option)
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(ps-left-header
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(list
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(concat "(" (mh-get-header-field "Subject:") ")")
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(concat "(" (mh-get-header-field "From:") ")")))
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(ps-right-header
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(list
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"/pagenumberstring load"
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(concat "(" (mh-get-header-field "Date:") ")"))))
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(funcall mh-ps-print-func))))
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;;;###mh-autoload
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(defun mh-ps-print-msg-file (range file)
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"Print RANGE to FILE\\<mh-folder-mode-map>.
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Check the documentation of `mh-interactive-range' to see how RANGE is
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read in interactive use.
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This command will print inline text attachments but will not decrypt
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messages. However, when a message is displayed in an MH-Show buffer,
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then that buffer is used verbatim for printing with the caveat that
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only text attachments, if opened inline, are printed. Therefore,
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encrypted messages can be printed by showing and decrypting them
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first.
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MH-E uses the \"ps-print\" package to do the printing, so you can
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customize the printing further by going to the `ps-print'
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customization group. This command does not use the options
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`mh-lpr-command-format' or `mh-print-background-flag'. See also the
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commands \\[mh-ps-print-toggle-color] and
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\\[mh-ps-print-toggle-faces]."
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(interactive (list (mh-interactive-range "Print") (mh-ps-print-preprint 1)))
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(mh-ps-print-range range file))
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(defun mh-ps-print-preprint (arg)
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"Provide a better default file name for `ps-print-preprint'.
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Pass along the prefix ARG to it."
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(let ((buffer-file-name (format "mh-%s" (substring (buffer-name) 1))))
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(ps-print-preprint arg)))
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;;;###mh-autoload
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(defun mh-ps-print-toggle-faces ()
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"Toggle whether printing is done with faces or not.
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When faces are enabled, the printed message will look very
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similar to the message in the MH-Show buffer."
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(interactive)
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(if (eq mh-ps-print-func 'ps-spool-buffer-with-faces)
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(progn
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(setq mh-ps-print-func 'ps-spool-buffer)
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(message "Printing without faces"))
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(setq mh-ps-print-func 'ps-spool-buffer-with-faces)
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(message "Printing with faces")))
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;;;###mh-autoload
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(defun mh-ps-print-toggle-color ()
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"Toggle whether color is used in printing messages.
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Colors are emulated on black-and-white printers with shades of
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gray. This might produce illegible output, even if your screen
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colors only use shades of gray. If this is the case, try using
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this command to toggle between color, no color, and a black and
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white representation of the colors and see which works best. You
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change this setting permanently by customizing the option
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`ps-print-color-p'."
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(interactive)
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(if (eq mh-ps-print-color-option nil)
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(progn
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(setq mh-ps-print-color-option 'black-white)
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(message "Colors will be printed as black & white"))
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(if (eq mh-ps-print-color-option 'black-white)
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(progn
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(setq mh-ps-print-color-option t)
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(message "Colors will be printed"))
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(setq mh-ps-print-color-option nil)
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(message "Colors will not be printed"))))
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;; Old non-PS based printing
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;;;###mh-autoload
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(defun mh-print-msg (range)
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"Print RANGE the old fashioned way\\<mh-folder-mode-map>.
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The message is formatted with \"mhl\" (see option
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`mh-mhl-format-file') and printed with the \"lpr\" command (see
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option `mh-lpr-command-format').
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Check the documentation of `mh-interactive-range' to see how
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RANGE is read in interactive use.
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Consider using \\[mh-ps-print-msg] instead."
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(interactive (list (mh-interactive-range "Print")))
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(message "Printing...")
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(let (msgs)
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;; Gather message numbers and add them to "printed" sequence.
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(mh-iterate-on-range msg range
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(mh-add-msgs-to-seq msg 'printed t)
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(mh-notate nil mh-note-printed mh-cmd-note)
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(push msg msgs))
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(setq msgs (nreverse msgs))
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;; Print scan listing if we have more than one message.
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(if (> (length msgs) 1)
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(let* ((msgs-string
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(mapconcat 'identity (mh-list-to-string
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(mh-coalesce-msg-list msgs)) " "))
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(lpr-command
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(format mh-lpr-command-format
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(cond ((listp range)
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(format "Folder: %s, Messages: %s"
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mh-current-folder msgs-string))
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((symbolp range)
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(format "Folder: %s, Sequence: %s"
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mh-current-folder range)))))
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(scan-command
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(format "scan %s | %s" msgs-string lpr-command)))
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(if mh-print-background-flag
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(mh-exec-cmd-daemon shell-file-name nil "-c" scan-command)
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(call-process shell-file-name nil nil nil "-c" scan-command))))
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;; Print the messages
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(dolist (msg msgs)
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(let* ((mhl-command (format "%s %s %s"
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(expand-file-name "mhl" mh-lib-progs)
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(if mh-mhl-format-file
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(format " -form %s" mh-mhl-format-file)
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"")
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(mh-msg-filename msg)))
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(lpr-command
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(format mh-lpr-command-format
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(format "%s/%s" mh-current-folder msg)))
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(print-command
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(format "%s | %s" mhl-command lpr-command)))
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(if mh-print-background-flag
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(mh-exec-cmd-daemon shell-file-name nil "-c" print-command)
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(call-process shell-file-name nil nil nil "-c" print-command)))))
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(message "Printing...done"))
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(provide 'mh-print)
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;; Local Variables:
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;; indent-tabs-mode: nil
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;; sentence-end-double-space: nil
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;; End:
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;;; mh-print.el ends here
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