238 lines
10 KiB
EmacsLisp
238 lines
10 KiB
EmacsLisp
;;; transpose-frame.el --- Transpose windows arrangement in a frame
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;; Copyright (c) 2011 S. Irie
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;; Author: S. Irie
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;; Keywords: window
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;; Package-Version: 20220913.1749
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;; Package-Commit: 7b7f8a1582436749a57ebbba6ead716b5a0edddc
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;; This program is free software.
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;; Redistribution and use in source and binary forms, with or without
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;; modification, are permitted provided that the following conditions
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;; are met:
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;; 1. Redistributions of source code must retain the above copyright
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;; notice, this list of conditions and the following disclaimer.
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;; 2. Redistributions in binary form must reproduce the above copyright
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;; notice, this list of conditions and the following disclaimer in the
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;; documentation and/or other materials provided with the distribution.
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;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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;; "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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;; LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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;; A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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;; OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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;; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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;; PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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;; LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;; Commentary:
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;; This program provides some interactive functions which allows users
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;; to transpose windows arrangement in currently selected frame:
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;;
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;; `transpose-frame' ... Swap x-direction and y-direction
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;;
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;; +------------+------------+ +----------------+--------+
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;; | | B | | A | |
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;; | A +------------+ | | |
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;; | | C | => +--------+-------+ D |
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;; +------------+------------+ | B | C | |
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;; | D | | | | |
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;; +-------------------------+ +--------+-------+--------+
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;;
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;; `flip-frame' ... Flip vertically
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;;
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;; +------------+------------+ +------------+------------+
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;; | | B | | D |
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;; | A +------------+ +------------+------------+
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;; | | C | => | | C |
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;; +------------+------------+ | A +------------+
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;; | D | | | B |
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;; +-------------------------+ +------------+------------+
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;;
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;; `flop-frame' ... Flop horizontally
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;;
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;; +------------+------------+ +------------+------------+
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;; | | B | | B | |
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;; | A +------------+ +------------+ A |
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;; | | C | => | C | |
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;; +------------+------------+ +------------+------------+
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;; | D | | D |
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;; +-------------------------+ +-------------------------+
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;;
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;; `rotate-frame' ... Rotate 180 degrees
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;;
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;; +------------+------------+ +-------------------------+
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;; | | B | | D |
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;; | A +------------+ +------------+------------+
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;; | | C | => | C | |
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;; +------------+------------+ +------------+ A |
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;; | D | | B | |
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;; +-------------------------+ +------------+------------+
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;;
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;; `rotate-frame-clockwise' ... Rotate 90 degrees clockwise
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;;
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;; +------------+------------+ +-------+-----------------+
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;; | | B | | | A |
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;; | A +------------+ | | |
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;; | | C | => | D +--------+--------+
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;; +------------+------------+ | | B | C |
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;; | D | | | | |
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;; +-------------------------+ +-------+--------+--------+
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;;
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;; `rotate-frame-anticlockwise' ... Rotate 90 degrees anti-clockwise
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;;
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;; +------------+------------+ +--------+--------+-------+
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;; | | B | | B | C | |
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;; | A +------------+ | | | |
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;; | | C | => +--------+--------+ D |
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;; +------------+------------+ | A | |
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;; | D | | | |
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;; +-------------------------+ +-----------------+-------+
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;;
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;; This program is tested on GNU Emacs 22, 23.
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;;; Code:
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;;; Internal functions
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(defun transpose-frame-get-arrangement (&optional frame subtree)
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(let ((tree (or subtree
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(car (window-tree frame)))))
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(if (windowp tree)
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(list (window-buffer tree)
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(window-start tree)
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(window-point tree)
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(window-hscroll tree)
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(window-margins tree)
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(window-fringes tree)
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(window-dedicated-p tree)
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(jit-lock-register tree)
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tree
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(eq tree (frame-selected-window frame)))
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(let* ((vertical (car tree))
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(edges (cadr tree))
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(length (float (if vertical
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(- (nth 3 edges) (cadr edges))
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(- (nth 2 edges) (car edges))))))
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(cons vertical
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(mapcar (lambda (subtree)
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(cons (transpose-frame-get-arrangement frame subtree)
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(/ (let ((edges (if (windowp subtree)
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(window-edges subtree)
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(cadr subtree))))
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(if vertical
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(- (nth 3 edges) (cadr edges))
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(- (nth 2 edges) (car edges))))
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length)))
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(cddr tree)))))))
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(defun transpose-frame-set-arrangement (config &optional window-or-frame &rest how)
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(let ((window (if (windowp window-or-frame)
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window-or-frame
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(frame-selected-window window-or-frame))))
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(unless (windowp window-or-frame)
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(delete-other-windows window))
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(if (bufferp (car config))
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(let ((buffer (pop config)))
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(set-window-buffer window buffer)
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(set-window-start window (pop config))
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(set-window-point window (pop config))
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(set-window-hscroll window (pop config))
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(set-window-margins window (caar config) (cdr (pop config)))
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(apply 'set-window-fringes window (pop config))
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(set-window-dedicated-p window (pop config))
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(jit-lock-register window (pop config))
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(let* ((orig-window (pop config))
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(ol-func (lambda (ol)
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(when (eq (overlay-get ol 'window) orig-window)
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(overlay-put ol 'window window))))
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(ol-lists (with-current-buffer buffer
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(overlay-lists))))
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(mapc ol-func (car ol-lists))
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(mapc ol-func (cdr ol-lists)))
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(if (car config) (select-window window)))
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(let* ((horizontal (if (memq 'transpose how)
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(pop config)
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(not (pop config))))
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(edges (window-edges window))
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(length (if horizontal
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(- (nth 2 edges) (car edges))
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(- (nth 3 edges) (cadr edges)))))
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(if (memq (if horizontal 'flop 'flip) how)
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(setq config (reverse config)))
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(while (cdr config)
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(setq window (prog1
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(split-window window (round (* length (cdar config)))
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horizontal)
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(apply 'transpose-frame-set-arrangement
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(caar config) window how))
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config (cdr config)))
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(apply 'transpose-frame-set-arrangement
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(caar config) window how)))))
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;;; User commands
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;;;###autoload
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(defun transpose-frame (&optional frame)
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"Transpose windows arrangement at FRAME.
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Omitting FRAME means currently selected frame."
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(interactive)
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(transpose-frame-set-arrangement (transpose-frame-get-arrangement frame) frame
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'transpose)
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(when (called-interactively-p 'any) (recenter)))
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;;;###autoload
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(defun flip-frame (&optional frame)
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"Flip windows arrangement vertically at FRAME.
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Omitting FRAME means currently selected frame."
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(interactive)
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(transpose-frame-set-arrangement (transpose-frame-get-arrangement frame) frame
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'flip))
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;;;###autoload
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(defun flop-frame (&optional frame)
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"Flop windows arrangement horizontally at FRAME.
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Omitting FRAME means currently selected frame."
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(interactive)
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(transpose-frame-set-arrangement (transpose-frame-get-arrangement frame) frame
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'flop))
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;;;###autoload
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(defun rotate-frame (&optional frame)
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"Rotate windows arrangement 180 degrees at FRAME.
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Omitting FRAME means currently selected frame."
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(interactive)
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(transpose-frame-set-arrangement (transpose-frame-get-arrangement frame) frame
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'flip 'flop))
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;;;###autoload
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(defun rotate-frame-clockwise (&optional frame)
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"Rotate windows arrangement 90 degrees clockwise at FRAME.
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Omitting FRAME means currently selected frame."
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(interactive)
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(transpose-frame-set-arrangement (transpose-frame-get-arrangement frame) frame
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'transpose 'flop)
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(when (called-interactively-p 'any) (recenter)))
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;;;###autoload
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(defun rotate-frame-anticlockwise (&optional frame)
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"Rotate windows arrangement 90 degrees anti-clockwise at FRAME.
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Omitting FRAME means currently selected frame."
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(interactive)
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(transpose-frame-set-arrangement (transpose-frame-get-arrangement frame) frame
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'transpose 'flip)
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(when (called-interactively-p 'any) (recenter)))
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;;; _
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;; Local Variables:
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;; indent-tabs-mode: nil
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;; End:
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(provide 'transpose-frame)
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;;; transpose-frame.el ends here
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