77 lines
2.6 KiB
EmacsLisp
77 lines
2.6 KiB
EmacsLisp
;;; corelv.el --- Other echo area
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;; Copyright (C) 2015 Free Software Foundation, Inc.
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;; Author: Oleh Krehel
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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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;;
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;; This package provides `corelv-message' intended to be used in place of
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;; `message' when semi-permanent hints are needed, in order to not
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;; interfere with Echo Area.
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;;
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;; "Я тихо-тихо пiдглядаю,
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;; І тiшуся собi, як бачу то,
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;; Шо страшить i не пiдпускає,
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;; А iншi п’ють тебе, як воду пiсок."
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;; -- Андрій Кузьменко, L.V.
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;;; Code:
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(defvar corelv-wnd nil
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"Holds the current LV window.")
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(defun corelv-window ()
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"Ensure that LV window is live and return it."
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(if (window-live-p corelv-wnd)
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corelv-wnd
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(let ((ori (selected-window))
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buf)
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(prog1 (setq corelv-wnd
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(select-window
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(split-window
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(frame-root-window) -1 'below)))
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(if (setq buf (get-buffer "*LV*"))
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(switch-to-buffer buf)
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(switch-to-buffer "*LV*")
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(setq truncate-lines nil)
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(setq mode-line-format nil)
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(setq cursor-type nil)
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(set-window-dedicated-p corelv-wnd t))
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(select-window ori)))))
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(defun corelv-message (format-string &rest args)
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"Set LV window contents to (`format' FORMAT-STRING ARGS)."
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(let ((ori (selected-window))
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(str (apply #'format format-string args))
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(golden-ratio (when (boundp 'golden-ratio-mode) golden-ratio-mode))
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deactivate-mark)
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(when (bound-and-true-p golden-ratio-mode) (golden-ratio-mode -1))
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(select-window (corelv-window))
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(when golden-ratio (golden-ratio-mode))
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(unless (string= (buffer-string) str)
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(delete-region (point-min) (point-max))
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(insert str)
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(fit-window-to-buffer nil nil 1))
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(goto-char (point-min)) (end-of-line)
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(select-window ori)))
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(provide 'corelv)
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;;; corelv.el ends here
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