2013-05-17 12:09:48 -04:00
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;;; org-screenshot.el --- Take and manage screenshots in Org-mode files
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;;
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2014-01-07 08:18:17 -05:00
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;; Copyright (C) 2009-2014
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2013-05-17 12:09:48 -04:00
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;; Free Software Foundation, Inc.
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;;
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;; Author: Max Mikhanosha <max@openchat.com>
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;; Keywords: outlines, hypermedia, calendar, wp
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;; Homepage: http://orgmode.org
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;; Version: 8.0
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;;
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;; Released under the GNU General Public License version 3
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;; see: http://www.gnu.org/licenses/gpl-3.0.html
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;;
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;; This file is not part of GNU Emacs.
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;;
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;; This program 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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;; This program 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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;;
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;; NOTE: This library requires external screenshot taking executable "scrot",
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;; which is available as a package from all major Linux distribution. If your
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;; distribution does not have it, source can be found at:
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;;
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;; http://freecode.com/projects/scrot
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;;
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;; org-screenshot.el have been tested with scrot version 0.8.
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;;
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;; Usage:
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;;
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;; (require 'org-screenshot)
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;;
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;; Available commands with default bindings
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;;
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;; `org-screenshot-take' C-c M-s M-t and C-c M-s M-s
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;;
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;; Take the screenshot, C-u argument delays 1 second, double C-u 2 seconds
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;; triple C-u 3 seconds, and subsequent C-u add 2 seconds to the delay.
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;;
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;; Screenshot area is selected with the mouse, or left-click on the window
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;; for an entire window.
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;;
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;; `org-screenshot-rotate-prev' C-c M-s M-p and C-c M-s C-p
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;;
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;; Rotate screenshot before the point to one before it (sorted by date)
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;;
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;; `org-screenshot-rotate-next' C-c M-s M-n and C-c M-s C-n
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;;
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;; Rotate screenshot before the point to one after it
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;;
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;; `org-screenshot-show-unused' C-c M-s M-u and C-c M-s u
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;;
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;; Open dired buffer with screenshots that are not used in current
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;; Org buffer marked
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;;
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;; The screenshot take and rotate commands will update the inline images
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;; if they are already shown, if you are inserting first screenshot in the Org
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;; Buffer (and there are no other images shown), you need to manually display
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;; inline images with C-c C-x C-v
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;;
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;; Screenshot take and rotate commands offer user to continue by by using single
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;; keys, in a manner similar to to "repeat-char" of keyboard macros, user can
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;; continue rotating screenshots by pressing just the last key of the binding
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;;
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;; For example: C-c M-s M-t creates the screenshot and then user can
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;; repeatedly press M-p or M-n to rotate it back and forth with
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;; previously taken ones.
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;;
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(require 'org)
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(require 'dired)
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(defgroup org-screenshot nil
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"Options for taking and managing screen-shots"
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:group 'org-link)
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(defcustom org-screenshot-image-directory "./images/"
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"Directory in which screenshot image files will be stored, it
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be automatically created if it does't already exist."
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:type 'string
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:group 'org-screenshot)
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(defcustom org-screenshot-file-name-format "screenshot-%2.2d.png"
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"The string used to generate screenshot file name.
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Any %d format string recipe will be expanded with `format'
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function with the argument of a screenshot sequence number.
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A sequence like %XXXX will be replaced with string of the same
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length as there are X's, consisting of random characters in the
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range of [A-Za-z]."
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:type 'string
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:group 'org-screenshot)
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(defcustom org-screenshot-max-tries 200
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"Number of times we will try to generate generate filename that
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does not exist. With default `org-screenshot-name-format' its the
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limit for number of screenshots, before `org-screenshot-take' is
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unable to come up with a unique name."
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:type 'integer
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:group 'org-screenshot)
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(defvar org-screenshot-map (make-sparse-keymap)
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"Map for OrgMode screenshot related commands")
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;; prefix
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(org-defkey org-mode-map (kbd "C-c M-s") org-screenshot-map)
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;; Mnemonic is Control-C Meta "Screenshot" "Take"
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(org-defkey org-screenshot-map (kbd "M-t") 'org-screenshot-take)
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(org-defkey org-screenshot-map (kbd "M-s") 'org-screenshot-take)
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;; No reason to require meta key, since its our own keymap
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(org-defkey org-screenshot-map "s" 'org-screenshot-take)
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(org-defkey org-screenshot-map "t" 'org-screenshot-take)
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;; Rotations, the fast rotation user hint, would prefer the modifier
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;; used by the original command that started the rotation
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(org-defkey org-screenshot-map (kbd "M-n") 'org-screenshot-rotate-next)
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(org-defkey org-screenshot-map (kbd "M-p") 'org-screenshot-rotate-prev)
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(org-defkey org-screenshot-map (kbd "C-n") 'org-screenshot-rotate-next)
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(org-defkey org-screenshot-map (kbd "C-p") 'org-screenshot-rotate-prev)
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;; Show unused image files in Dired
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(org-defkey org-screenshot-map (kbd "M-u") 'org-screenshot-show-unused)
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(org-defkey org-screenshot-map (kbd "u") 'org-screenshot-show-unused)
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(random t)
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(defun org-screenshot-random-string (length)
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"Generate a random string of LENGTH consisting of random upper
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case and lower case letters."
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(let ((name (make-string length ?x)))
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(dotimes (i length)
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(let ((n (random 52)))
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(aset name i (if (< n 26)
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(+ ?a n)
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(+ ?A n -26)))))
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name))
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(defvar org-screenshot-process nil
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"Currently running screenshot process")
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(defvar org-screenshot-directory-seq-numbers (make-hash-table :test 'equal))
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(defun org-screenshot-update-seq-number (directory &optional reset)
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"Set `org-screenshot-file-name-format' sequence number for the directory.
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When RESET is NIL, increments the number stored, otherwise sets
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RESET as a new number. Intended to be called if screenshot was
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successful. Updating of sequence number is done in two steps, so
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aborted/canceled screenshot attempts don't increase the number"
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(setq directory (file-name-as-directory directory))
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(puthash directory (if reset
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(if (numberp reset) reset 1)
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(1+ (gethash directory
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org-screenshot-directory-seq-numbers
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0)))
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org-screenshot-directory-seq-numbers))
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(defun org-screenshot-generate-file-name (directory)
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"Use `org-screenshot-name-format' to generate new screenshot
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file name for a specific directory. Keeps re-generating name if
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it already exists, up to `org-screenshot-max-tries'
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times. Returns just the file, without directory part"
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(setq directory (file-name-as-directory directory))
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(when (file-exists-p directory)
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(let ((tries 0)
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name
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had-seq
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(case-fold-search nil))
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(while (and (< tries org-screenshot-max-tries)
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(not name))
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(incf tries)
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(let ((tmp org-screenshot-file-name-format)
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(seq-re "%[-0-9.]*d")
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(rand-re "%X+"))
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(when (string-match seq-re tmp)
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(let ((seq (gethash
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directory
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org-screenshot-directory-seq-numbers 1)))
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(setq tmp
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(replace-regexp-in-string
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seq-re (format (match-string 0 tmp) seq)
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tmp)
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had-seq t)))
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(when (string-match rand-re tmp)
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(setq tmp
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(replace-regexp-in-string
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rand-re (org-screenshot-random-string
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(1- (length (match-string 0 tmp))))
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tmp t)))
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(let ((fullname (concat directory tmp)))
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(if (file-exists-p fullname)
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(when had-seq (org-screenshot-update-seq-number directory))
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(setq name tmp)))))
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name)))
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(defun org-screenshot-image-directory ()
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"Return the `org-screenshot-image-directory', ensuring there is
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trailing slash, and that it exists"
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(let ((dir (file-name-as-directory org-screenshot-image-directory)))
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(if (file-exists-p dir)
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dir
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(make-directory dir t)
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dir)))
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(defvar org-screenshot-last-file nil
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"File name of the last taken or rotated screenshot file,
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without directory")
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(defun org-screenshot-process-done (process event file
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orig-buffer
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orig-delay
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orig-event)
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"Called when \"scrot\" process exits. PROCESS and EVENT are
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same arguments as in `set-process-sentinel'. ORIG-BUFFER,
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ORIG-DELAY and ORIG-EVENT are Org Buffer, the screenshot delay
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used, and LAST-INPUT-EVENT values from when screenshot was
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initiated.
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"
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(setq org-screenshot-process nil)
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(with-current-buffer (process-buffer process)
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(if (not (equal event "finished\n"))
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(progn
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(insert event)
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(cond ((save-excursion
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(goto-char (point-min))
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(re-search-forward "Key was pressed" nil t))
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(ding)
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(message "Key was pressed, screenshot aborted"))
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(t
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(display-buffer (process-buffer process))
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(message "Error running \"scrot\" program")
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(ding))))
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(with-current-buffer orig-buffer
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(let ((link (format "[[file:%s]]" file)))
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(setq org-screenshot-last-file (file-name-nondirectory file))
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(let ((beg (point)))
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(insert link)
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(when org-inline-image-overlays
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(org-display-inline-images nil t beg (point))))
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(unless (< orig-delay 3)
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(ding))
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(org-screenshot-rotate-continue t orig-event))))))
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;;;###autoload
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(defun org-screenshot-take (&optional delay)
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"Take a screenshot and insert link to it at point, if image
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display is already on (see \\[org-toggle-inline-images])
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screenshot will be displayed as an image
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Screen area for the screenshot is selected with the mouse, left
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click on a window screenshots that window, while left click and
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drag selects a region. Pressing any key cancels the screen shot
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With `C-u' universal argument waits one second after target is
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selected before taking the screenshot. With double `C-u' wait two
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seconds.
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With triple `C-u' wait 3 seconds, and also rings the bell when
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screenshot is done, any more `C-u' after that increases delay by
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2 seconds
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"
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(interactive "P")
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;; probably easier way to count number of C-u C-u out there
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(setq delay
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(cond ((null delay) 0)
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((integerp delay) delay)
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((and (consp delay)
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(integerp (car delay))
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(plusp (car delay)))
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(let ((num 1)
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(limit (car delay))
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(cnt 0))
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(while (< num limit)
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(setq num (* num 4)
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cnt (+ cnt (if (< cnt 3) 1 2))))
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cnt))
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(t (error "Invald delay"))))
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(when (and org-screenshot-process
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(member (process-status org-screenshot-process)
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'(run stop)))
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(error "scrot process is still running"))
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(let* ((name (org-screenshot-generate-file-name (org-screenshot-image-directory)))
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(file (format "%s%s" (org-screenshot-image-directory)
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name))
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(path (expand-file-name file)))
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(when (get-buffer "*scrot*")
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(with-current-buffer (get-buffer "*scrot*")
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(erase-buffer)))
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(setq org-screenshot-process
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(or
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(apply 'start-process
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(append
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(list "scrot" "*scrot*" "scrot" "-s" path)
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(when (plusp delay)
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(list "-d" (format "%d" delay)))))
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(error "Unable to start scrot process")))
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(when org-screenshot-process
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(if (plusp delay)
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(message "Click on a window, or select a rectangle (delay is %d sec)..."
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delay)
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(message "Click on a window, or select a rectangle..."))
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(set-process-sentinel
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org-screenshot-process
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`(lambda (process event)
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(org-screenshot-process-done
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process event ,file ,(current-buffer) ,delay ',last-input-event))))))
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(defvar org-screenshot-file-list nil
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"List of files in `org-screenshot-image-directory' used by
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`org-screenshot-rotate-prev' and `org-screenshot-rotate-next'")
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(defvar org-screenshot-rotation-index -1)
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(make-variable-buffer-local 'org-screenshot-file-list)
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(make-variable-buffer-local 'org-screenshot-rotation-index)
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(defun org-screenshot-rotation-init (lastfile)
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"Initialize variable `org-screenshot-file-list' variabel with
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the list of PNG files in `org-screenshot-image-directory' sorted
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by most recent first"
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(setq
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org-screenshot-rotation-index -1
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org-screenshot-file-list
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(let ((files (directory-files org-screenshot-image-directory
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t (image-file-name-regexp) t)))
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(mapcar 'file-name-nondirectory
|
2013-05-17 12:09:48 -04:00
|
|
|
(sort files
|
|
|
|
(lambda (file1 file2)
|
|
|
|
(let ((mtime1 (nth 5 (file-attributes file1)))
|
|
|
|
(mtime2 (nth 5 (file-attributes file2))))
|
|
|
|
(setq mtime1 (+ (ash (first mtime1) 16)
|
|
|
|
(second mtime1)))
|
|
|
|
(setq mtime2 (+ (ash (first mtime2) 16)
|
|
|
|
(second mtime2)))
|
|
|
|
(> mtime1 mtime2)))))))
|
|
|
|
(let ((n -1) (list org-screenshot-file-list))
|
|
|
|
(while (and list (not (equal (pop list) lastfile)))
|
|
|
|
(incf n))
|
|
|
|
(setq org-screenshot-rotation-index n)))
|
|
|
|
|
|
|
|
(defun org-screenshot-do-rotate (dir from-continue-rotating)
|
|
|
|
"Rotate last screenshot with one of the previously taken
|
|
|
|
screenshots from the same directory. If DIR is negative, in the
|
|
|
|
other direction"
|
|
|
|
(setq org-screenshot-last-file nil)
|
|
|
|
(let* ((ourdir (file-name-as-directory (org-screenshot-image-directory)))
|
|
|
|
done
|
|
|
|
(link-re
|
|
|
|
;; taken from `org-display-inline-images'
|
|
|
|
(concat "\\[\\[\\(\\(file:\\)\\|\\([./~]\\)\\)\\([^]\n]+?"
|
2015-11-06 07:27:28 -05:00
|
|
|
(substring (image-file-name-regexp) 0 -2)
|
2013-05-17 12:09:48 -04:00
|
|
|
"\\)\\]"))
|
|
|
|
newfile oldfile)
|
|
|
|
(save-excursion
|
|
|
|
;; Search for link to image file in the same directory before the point
|
|
|
|
(while (not done)
|
|
|
|
(if (not (re-search-backward link-re (point-min) t))
|
|
|
|
(error "Unable to find link to image from %S directory before point" ourdir)
|
|
|
|
(let ((file (concat (or (match-string 3) "") (match-string 4))))
|
|
|
|
(when (equal (file-name-directory file)
|
|
|
|
ourdir)
|
|
|
|
(setq done t
|
|
|
|
oldfile (file-name-nondirectory file))))))
|
|
|
|
(when (or (null org-screenshot-file-list)
|
|
|
|
(and (not from-continue-rotating)
|
|
|
|
(not (member last-command
|
|
|
|
'(org-screenshot-rotate-prev
|
|
|
|
org-screenshot-rotate-next)))))
|
|
|
|
(org-screenshot-rotation-init oldfile))
|
|
|
|
(unless (> (length org-screenshot-file-list) 1)
|
|
|
|
(error "Can't rotate a single image file"))
|
|
|
|
(replace-match "" nil nil nil 1)
|
|
|
|
|
|
|
|
(setq org-screenshot-rotation-index
|
|
|
|
(mod (+ org-screenshot-rotation-index dir)
|
|
|
|
(length org-screenshot-file-list))
|
|
|
|
newfile (nth org-screenshot-rotation-index
|
|
|
|
org-screenshot-file-list))
|
|
|
|
;; in case we started rotating from the file we just inserted,
|
|
|
|
;; advance one more time
|
|
|
|
(when (equal oldfile newfile)
|
|
|
|
(setq org-screenshot-rotation-index
|
|
|
|
(mod (+ org-screenshot-rotation-index (if (plusp dir) 1 -1))
|
|
|
|
(length org-screenshot-file-list))
|
|
|
|
newfile (nth org-screenshot-rotation-index
|
|
|
|
org-screenshot-file-list)))
|
|
|
|
(replace-match (concat "file:" ourdir
|
|
|
|
newfile)
|
|
|
|
t t nil 4))
|
|
|
|
;; out of save-excursion
|
|
|
|
(setq org-screenshot-last-file newfile)
|
|
|
|
(when org-inline-image-overlays
|
|
|
|
(org-display-inline-images nil t (match-beginning 0) (point)))))
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
(defun org-screenshot-rotate-prev (dir)
|
|
|
|
"Rotate last screenshot with one of the previously taken
|
|
|
|
screenshots from the same directory. If DIR is negative, rotate
|
|
|
|
in the other direction"
|
|
|
|
(interactive "p")
|
|
|
|
(org-screenshot-do-rotate dir nil)
|
|
|
|
(when org-screenshot-last-file
|
|
|
|
(org-screenshot-rotate-continue nil nil)))
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
(defun org-screenshot-rotate-next (dir)
|
|
|
|
"Rotate last screenshot with one of the previously taken
|
|
|
|
screenshots from the same directory. If DIR is negative, rotate
|
|
|
|
in the other direction"
|
|
|
|
(interactive "p")
|
|
|
|
(org-screenshot-do-rotate (- dir) nil)
|
|
|
|
(when org-screenshot-last-file
|
|
|
|
(org-screenshot-rotate-continue nil nil)))
|
|
|
|
|
|
|
|
(defun org-screenshot-prefer-same-modifiers (list event)
|
|
|
|
(if (not (eventp nil)) (car list)
|
|
|
|
(let (ret (keys list))
|
|
|
|
(while (and (null ret) keys)
|
|
|
|
(let ((key (car keys)))
|
|
|
|
(if (and (= 1 (length key))
|
|
|
|
(equal (event-modifiers event)
|
|
|
|
(event-modifiers (elt key 0))))
|
|
|
|
(setq ret (car keys))
|
|
|
|
(setq keys (cdr keys)))))
|
|
|
|
(or ret (car list)))))
|
|
|
|
|
|
|
|
(defun org-screenshot-rotate-continue (from-take-screenshot orig-event)
|
|
|
|
"Display the message with the name of the last changed
|
|
|
|
image-file and inform user that they can rotate by pressing keys
|
|
|
|
bound to `org-screenshot-rotate-next' and
|
|
|
|
`org-screenshot-rotate-prev' in `org-screenshot-map'
|
|
|
|
|
|
|
|
This works similarly to `kmacro-end-or-call-macro' so that user
|
|
|
|
can press a long key sequence to invoke the first command, and
|
|
|
|
then uses single keys to rotate, until unregognized key is
|
|
|
|
entered, at which point event will be unread"
|
|
|
|
|
|
|
|
(let* ((event (if from-take-screenshot orig-event
|
|
|
|
last-input-event))
|
|
|
|
done
|
|
|
|
(prev-key
|
|
|
|
(org-screenshot-prefer-same-modifiers
|
|
|
|
(where-is-internal 'org-screenshot-rotate-prev
|
|
|
|
org-screenshot-map nil)
|
|
|
|
event))
|
|
|
|
(next-key
|
|
|
|
(org-screenshot-prefer-same-modifiers
|
|
|
|
(where-is-internal 'org-screenshot-rotate-next
|
|
|
|
org-screenshot-map nil)
|
|
|
|
event))
|
|
|
|
prev-key-str next-key-str)
|
|
|
|
(when (and (= (length prev-key) 1)
|
|
|
|
(= (length next-key) 1))
|
|
|
|
(setq
|
|
|
|
prev-key-str (format-kbd-macro prev-key nil)
|
|
|
|
next-key-str (format-kbd-macro next-key nil)
|
|
|
|
prev-key (elt prev-key 0)
|
|
|
|
next-key (elt next-key 0))
|
|
|
|
(while (not done)
|
|
|
|
(message "%S - '%s' and '%s' to rotate"
|
|
|
|
org-screenshot-last-file prev-key-str next-key-str)
|
|
|
|
(setq event (read-event))
|
|
|
|
(cond ((equal event prev-key)
|
|
|
|
(clear-this-command-keys t)
|
|
|
|
(org-screenshot-do-rotate 1 t)
|
|
|
|
(setq last-input-event nil))
|
|
|
|
((equal event next-key)
|
|
|
|
(clear-this-command-keys t)
|
|
|
|
(org-screenshot-do-rotate -1 t)
|
|
|
|
(setq last-input-event nil))
|
|
|
|
(t (setq done t))))
|
|
|
|
(when last-input-event
|
|
|
|
(clear-this-command-keys t)
|
|
|
|
(setq unread-command-events (list last-input-event))))))
|
|
|
|
|
|
|
|
;;;###autoload
|
|
|
|
(defun org-screenshot-show-unused ()
|
|
|
|
"Open A Dired buffer with unused screenshots marked"
|
|
|
|
(interactive)
|
|
|
|
(let ((files-in-buffer)
|
|
|
|
dired-buffer
|
|
|
|
had-any
|
2015-11-06 07:27:28 -05:00
|
|
|
(image-re (image-file-name-regexp))
|
2013-05-17 12:09:48 -04:00
|
|
|
beg end)
|
|
|
|
(save-excursion
|
|
|
|
(save-restriction
|
|
|
|
(widen)
|
|
|
|
(setq beg (or beg (point-min)) end (or end (point-max)))
|
|
|
|
(goto-char beg)
|
|
|
|
(let ((re (concat "\\[\\[\\(\\(file:\\)\\|\\([./~]\\)\\)\\([^]\n]+?"
|
2015-11-06 07:27:28 -05:00
|
|
|
(substring (image-file-name-regexp) 0 -2)
|
2013-05-17 12:09:48 -04:00
|
|
|
"\\)\\]"))
|
|
|
|
(case-fold-search t)
|
|
|
|
old file ov img type attrwidth width)
|
|
|
|
(while (re-search-forward re end t)
|
|
|
|
(setq file (concat (or (match-string 3) "") (match-string 4)))
|
|
|
|
(when (and (file-exists-p file)
|
|
|
|
(equal (file-name-directory file)
|
|
|
|
(org-screenshot-image-directory)))
|
|
|
|
(push (file-name-nondirectory file)
|
|
|
|
files-in-buffer))))))
|
|
|
|
(setq dired-buffer (dired-noselect (org-screenshot-image-directory)))
|
|
|
|
(with-current-buffer dired-buffer
|
|
|
|
(dired-unmark-all-files ?\r)
|
|
|
|
(dired-mark-if
|
|
|
|
(let ((file (dired-get-filename 'no-dir t)))
|
|
|
|
(and file (string-match image-re file)
|
|
|
|
(not (member file files-in-buffer))
|
|
|
|
(setq had-any t)))
|
|
|
|
"Unused screenshot"))
|
|
|
|
(when had-any (pop-to-buffer dired-buffer))))
|
|
|
|
|
|
|
|
(provide 'org-screenshot)
|