branch: externals/colorful-mode
commit 013cc76decf4e0998f49c24a0aefbb8a21295bad
Author: Elias G. B. Perez <eg642...@gmail.com>
Commit: Elias G. B. Perez <eg642...@gmail.com>
Initial release
---
.project | 0
COPYING.org | 594 ++++++++++++++++++++++++++++++++++++++++++
README.org | 72 +++++
assets/colorful-mode-logo.svg | 191 ++++++++++++++
assets/elisp_logo_warning.svg | 193 ++++++++++++++
assets/gif1.gif | Bin 0 -> 195595 bytes
assets/gif2.gif | Bin 0 -> 252770 bytes
assets/gif3.gif | Bin 0 -> 476643 bytes
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assets/screenshot2.png | Bin 0 -> 50190 bytes
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assets/screenshot4.png | Bin 0 -> 32048 bytes
colorful-mode.el | 337 ++++++++++++++++++++++++
13 files changed, 1387 insertions(+)
diff --git a/.project b/.project
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index 0000000000..e69de29bb2
diff --git a/COPYING.org b/COPYING.org
new file mode 100644
index 0000000000..5e348028f7
--- /dev/null
+++ b/COPYING.org
@@ -0,0 +1,594 @@
+* GNU General Public License
+
+/Version 3, 29 June 2007/
+/Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
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+a certain numbered version of the GNU General Public License “or any later
+version” applies to it, you have the option of following the terms and
+conditions either of that numbered version or of any later version published
by the
+Free Software Foundation. If the Program does not specify a version number of
the GNU
+General Public License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the
GNU
+General Public License can be used, that proxy's public statement of
acceptance of a
+version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions.
However, no
+additional obligations are imposed on any author or copyright holder as a
result of
+your choosing to follow a later version.
+
+*** 15. Disclaimer of Warranty
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE
LAW.
+EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER
PARTIES
+PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
+EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
+QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
CORRECTION.
+
+*** 16. Limitation of Liability
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
+COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
+PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
+INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE
THE
+PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED
INACCURATE
+OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO
OPERATE
+WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED
OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+*** 17. Interpretation of Sections 15 and 16
+
+If the disclaimer of warranty and limitation of liability provided above
cannot be
+given local legal effect according to their terms, reviewing courts shall
apply local
+law that most closely approximates an absolute waiver of all civil liability in
+connection with the Program, unless a warranty or assumption of liability
accompanies
+a copy of the Program in return for a fee.
+
+/END OF TERMS AND CONDITIONS/
+
+** How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible
use to
+the public, the best way to achieve this is to make it free software which
everyone
+can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach
them
+to the start of each source file to most effectively state the exclusion of
warranty;
+and each file should have at least the “copyright” line and a pointer to
+where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program 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.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like
this
+when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type 'show c' for details.
+
+The hypothetical commands =show w= and =show c= should show the appropriate
parts of
+the General Public License. Of course, your program's commands might be
different;
+for a GUI interface, you would use an “about box”.
+
+You should also get your employer (if you work as a programmer) or school, if
any, to
+sign a “copyright disclaimer” for the program, if necessary. For more
+information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>
+
+The GNU General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
consider it
+more useful to permit linking proprietary applications with the library. If
this is
+what you want to do, use the GNU Lesser General Public License instead of this
+License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>
diff --git a/README.org b/README.org
new file mode 100644
index 0000000000..59c6ebcfe1
--- /dev/null
+++ b/README.org
@@ -0,0 +1,72 @@
+#+title: [[./assets/colorful-mode-logo.svg]]
+#+subtitle: Preview any color in your buffer
+#+author: Elias G.B. Perez
+#+language: en
+#+export_file_name: colorful-mode.texi
+#+texinfo_dir_category: Emacs misc features
+#+texinfo_dir_title: colorful-mode: (colorful-mode).
+#+texinfo_dir_desc: Preview color hexs in your buffer
+
+#+html: <img src="./assets/elisp_logo_warning.svg" align="right" width="10%">
+
+🟠colorful-mode is a minor mode that allow you preview *color hex* and
+*color names*, in your current buffer in a user friendly way based on
+🌈[[https://elpa.gnu.org/packages/rainbow-mode.html][rainbow-mode.el]].
+
+* Features 🔧
+- Preview emacs colors names and hex in your current buffer /(soon
+ support for CSS rgb)/.
+- Changing highlighted colors to other formats.
+- Preview colors with highlights or using a prefix string.
+
+* Screenshots and animated GIFs 📷
+#+CAPTION: with prefix instead highliht
+[[./assets/gif1.gif]]
+
+[[./assets/gif2.gif]]
+[[./assets/gif3.gif]]
+[[./assets/screenshot1.png]]
+[[./assets/screenshot2.png]]
+[[./assets/screenshot3.png]]
+#+CAPTION: with a custom prefix (in this example a nerd font character)
+[[./assets/screenshot4.png]]
+
+* Installation 📦
+Currently colorful-mode is not available in any elisp package archive,
+however you can install it with =package-vc-install=
+
+Run =M-x package-vc-install=
+And type =https://github.com/DevelopmentCool2449/colorful-mode.git=
+
+For emacs 30 users you can use =use-package=
+
+#+begin_src emacs-lisp
+ (use-package colorful-mode
+ :vc (:url "https://github.com/DevelopmentCool2449/colorful-mode.git";
+ :rev :newest)
+ ...)
+#+end_src
+
+* How does it compare to =rainbow-mode=?
+=colorful-mode= improves =rainbow-mode= in adding more features
+and fixing some /(and old)/ bugs.
+
+The intention is to provide a featured alternative to =rainbow.el=
+with a user-friendy approach
+
+
+* Plans for future
+Currently this repo will only be used for feature-request /(i can't
+promise to do them)/, send bug reports, and feedback /(i would greatly
+appreciate this since i'm not expert in elisp)/.
+
+Due I have plans for submit it to *GNU ELPA* /(and maybe MELPA)/ *Pull
+Resquest will not be accepted* (unless your contribution is less than
+15 lines [see:
[[https://www.gnu.org/software/emacs/manual/html_node/emacs/Copyright-Assignment.html][Copyright
Assignment]]] and this package is ready for
+submit to ELPA and you are willing to assign copyright to FSF)
+
+Also i will try to make this package as stable as possible before
+submit it to ELPA, later that *I won't be able to be the mantainer* of
+this package, However I would like if someone would be able to be the
+mantainer (if you are interested please email me
+<eg642...@gmail.com>).
diff --git a/assets/colorful-mode-logo.svg b/assets/colorful-mode-logo.svg
new file mode 100644
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+ GNU Emacs is distributed in the hope that it will be useful,
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diff --git a/colorful-mode.el b/colorful-mode.el
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--- /dev/null
+++ b/colorful-mode.el
@@ -0,0 +1,337 @@
+;;; colorful-mode.el --- Preview any color in your buffer -*-
lexical-binding: t; -*-
+
+;; Copyright (C) 2024 Elias G.B. Perez
+
+;; Author: Elias G.B. Perez <eg642...@gmail.com>
+;; Keywords: faces
+;; Version: 0.1.0
+
+;; This file is not part of GNU Emacs.
+
+;; This program 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.
+
+;; This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;; Minor mode that sets background color to color names, hex values
+;; or rgb values (CSS) found in your current buffer in a friendly and
+;; effective way based on rainbow-mode.
+
+;;; Code:
+
+;; Importing Libraries.
+(require 'faces)
+(require 'color)
+(require 'rx)
+
+;; Buffer-local variables
+
+(defvar-local colorful-color-keywords
+ `((,(rx (seq (not (any "&"))
+ (group "#" (repeat 1 4 (= 3 (any "0-9A-Fa-f"))))
+ word-boundary))
+ (1 (colorful-colorize-itself 1)))
+ (,(rx (seq bol
+ (group "#" (repeat 1 4 (= 3 (any "0-9A-Fa-f"))))
+ word-boundary))
+ (0 (colorful-colorize-itself)))
+ (,(rx (seq (any "Rr") (any "Gg") (any "Bb") ":"
+ (repeat 1 4 (any "0-9A-Fa-f")) "/"
+ (repeat 1 4 (any "0-9A-Fa-f")) "/"
+ (repeat 1 4 (any "0-9A-Fa-f"))))
+ (0 (colorful-colorize-itself)))
+ (,(rx (seq (any "Rr") (any "Gg") (any "Bb") (any "Ii") ":"
+ (one-or-more (any "0-9" ".")) "/"
+ (one-or-more (any "0-9" ".")) "/"
+ (one-or-more (any "0-9" "."))))
+ (0 (colorful-colorize-itself)))
+ (,(rx (seq (or (seq (any "Cc") (any "Ii") (any "Ee")
+ (or (seq (any "Xx") (any "Yy") (any "Zz"))
+ (seq (any "Uu") (any "Vv") (any "Yy"))
+ (seq (any "Xx") (any "Yy") (any "Yy"))
+ (seq (any "Ll") (any "Aa") (any "Bb"))
+ (seq (any "Ll") (any "Uu") (any "Vv"))))
+ (seq (any "Tt") (any "Ee") (any "Kk") (any "Hh")
+ (any "Vv") (any "Cc")))
+ ":"
+ (opt (any "+-"))
+ (one-or-more (any "0-9" "."))
+ (opt (any "Ee")
+ (opt (any "+-"))
+ (one-or-more (any "0-9")))
+ "/"
+ (opt (any "+-"))
+ (one-or-more (any "0-9" "."))
+ (opt (any "Ee")
+ (opt (any "+-"))
+ (one-or-more (any "0-9")))
+ "/"
+ (opt (any "+-"))
+ (one-or-more (any "0-9" "."))
+ (opt (any "Ee")
+ (opt (any "+-"))
+ (one-or-more (any "0-9")))))
+ (0 (colorful-colorize-itself))))
+ "Font-lock keywords to add for hexadecimal colors.
+Must be a list containing regex strings.")
+
+
+;; Customizable User options.
+
+(defgroup colorful-mode nil
+ "Preview hex colors values in current buffer.."
+ :tag "Colorful mode"
+ :group 'help)
+
+(defface colorful-base
+ '((t (:box (:line-width (1 . 1) :color "grey75" :style flat-button))))
+ "Face used as base for highlight color names.")
+
+(defcustom colorful-allow-mouse-clicks t
+ "If non-nil, allow using mouse buttons for change color."
+ :type 'boolean)
+
+(defcustom colorful-use-prefix nil
+ "If non-nil, use prefix for preview color instead highlight them."
+ :type 'boolean)
+
+(defcustom colorful-prefix-string "●"
+ "Prefix symbol to be used according `colorful-use-prefix'."
+ :type 'string)
+
+(defcustom colorful-prefix-alignment 'left
+ "The position to put prefix string.
+The value can be left or right."
+ :type '(choice (const :tag "Left" left)
+ (const :tag "Right" right)))
+
+
+;; Functions
+
+(defun colorful--color-luminance (color)
+ "Calculate the relative luminance of COLOR string.
+Return a value between 0 and 1."
+ (let* ((values (color-values color))
+ (r (/ (nth 0 values) 256.0))
+ (g (/ (nth 1 values) 256.0))
+ (b (/ (nth 2 values) 256.0)))
+ ;; Return computed value
+ (/ (+ (* .2126 r)
+ (* .7152 g)
+ (* .0722 b)
+ 255))))
+
+;; (defun colorful--hex-to-rgb (hex)
+;; "Return HEX color as CSS rgb format."
+;; ;; (query-replace)
+;; )
+
+(defun colorful--hex-to-name (hex)
+ "Return HEX as Emacs color name."
+ (let ((color (color-values hex))
+ name)
+ (dolist (color-list color-name-rgb-alist)
+ (if (equal (cdr color-list) color)
+ (setq name (car color-list))))
+ name))
+
+(defun colorful--name-to-hex (name)
+ "Return Emacs color NAME as hex color format."
+ (let ((color (color-name-to-rgb name)))
+ (apply #'color-rgb-to-hex color)))
+
+(defun colorful--replace-region (beg end text)
+ "Delete region from BEG to END with TEXT."
+ (save-excursion
+ (delete-region beg end)
+ (insert text)))
+
+;;;###autoload
+(defun colorful-change-color (&optional color beg end prompt)
+ "Change COLOR from BEG to END, opcionally use a PROMPT message text."
+ (interactive "*")
+ ;; COLOR BEG and END are only used as lexical values,
+ ;; not intended to be used externally.
+ (dolist (ov (overlays-at (point)))
+ (when (overlay-get ov 'colorful--overlay)
+ (setq beg (or beg (overlay-start ov))
+ end (or end (overlay-end ov))
+ color (or color (buffer-substring-no-properties beg end)))))
+
+ (if-let* (beg
+ end
+ color
+ (prompt (or prompt
+ (format "Change %s to: " color)))
+ (choices '(("Hex value" . hex)
+ ;; ("RGB (CSS)" . rgb)
+ ("Emacs color name" . name)))
+ (choice (alist-get
+ (completing-read prompt choices nil t nil nil)
+ choices nil nil 'equal)))
+ (pcase choice ; Convert to...
+ ('hex
+ (if (not (string-prefix-p "#" color)) ; Ensure is not already a hex
+ (cond ((member color (defined-colors)) ; Name
+ (let ((rep (colorful--name-to-hex color)))
+ (colorful--replace-region beg end rep)))
+ ;; TODO: () ; rgb
+ )
+ (colorful-change-color
+ color beg end
+ (format "%s is already a Hex value. Try again: " color))))
+ ;; ('rgb (unless (string-prefix-p "rgb" color)))
+ ('name
+ (if (not (assoc color color-name-rgb-alist))
+ (cond ((string-prefix-p "#" color) ; Hex
+ (let ((rep (colorful--hex-to-name color)))
+ (if rep
+ (colorful--replace-region beg end rep)
+ (message "No color name available."))))
+ ;; ((string-prefix-p "rgb" color) ; CSS rgb
+ ;; (let ((rep (colorful--hex-to-name color)))
+ ;; (colorful--replace-region beg end rep)))
+ )
+ (colorful-change-color
+ color beg end
+ (format "%s is already a color name value. Try again: " color)))))
+ (message "No color found at position.")))
+
+(defun colorful--delete-overlay (overlay &rest _)
+ "Helper function for delete OVERLAY."
+ (delete-overlay overlay))
+
+(defun colorful--colorize-match (color &optional match)
+ "Return a matched (MATCH) string propertized with a face in BG and END range.
+Propertize with background COLOR value. The foreground is computed using
+`colorful--color-luminance', and is either white or black."
+ (let* ((match (or match 0))
+ (start (match-beginning match))
+ (end (match-end match))
+ (ov (make-overlay start end nil t t)))
+
+ ;; Define colorful overlay tag
+ (overlay-put ov 'colorful--overlay t)
+
+ ;; NOTE: Using colorful prefix bugs background color,
+ ;; this is the way i found for fix this.
+ (when (and colorful-allow-mouse-clicks
+ (not colorful-use-prefix))
+ (overlay-put ov 'mouse-face 'highlight)
+ (overlay-put ov 'keymap
+ (let ((map (make-sparse-keymap)))
+ (keymap-set map "<mouse-1>" #'colorful-change-color)
+ map)))
+
+ ;; Delete overlays when they are modified.
+ ;; This refresh them with without using `jit-lock-register' or
+ ;; any hook.
+ (overlay-put ov 'evaporate t)
+ (overlay-put ov 'modification-hooks `(colorful--delete-overlay))
+ (overlay-put ov 'insert-in-front-hooks `(colorful--delete-overlay))
+ (overlay-put ov 'insert-behind-hooks `(colorful--delete-overlay))
+
+ (cond
+ (colorful-use-prefix
+ (overlay-put ov
+ (if (eq colorful-prefix-alignment 'left)
+ 'before-string
+ 'after-string)
+ (if colorful-allow-mouse-clicks
+ (propertize colorful-prefix-string
+ 'face `(:foreground ,color)
+ 'mouse-face 'highlight
+ 'keymap
+ (let ((map (make-sparse-keymap)))
+ (keymap-set map "<mouse-1>"
#'colorful-change-color)
+ map))
+ (propertize colorful-prefix-string
+ 'face `(:foreground ,color))))
+ ;; NOTE: This fixs an error for invalid face when using prefix
+ (overlay-put ov 'face nil))
+ (t
+ (overlay-put ov 'face
+ `((:foreground
+ ,(if (< 0.0026 (colorful--color-luminance color))
+ "white" "black"))
+ (:background ,color)
+ (:inherit colorful-base)))))))
+
+(defun colorful-colorize-itself (&optional match)
+ "Helper function for Colorize MATCH with itself."
+ (let* ((match1 (or match 0))
+ (string (match-string-no-properties match1)))
+ ;; Delete duplicates overlays found
+ (dolist (ov (overlays-in (match-beginning match1) (match-end match1)))
+ (if (overlay-get ov 'colorful--overlay)
+ (colorful--delete-overlay ov)))
+ (colorful--colorize-match string match)))
+
+
+;; Extras color regex functions and variables.
+
+(defvar colorful-color-name-font-lock-keywords
+ `((,(regexp-opt (defined-colors) 'words)
+ (0 (colorful-colorize-itself))))
+ "Font-lock keywords to add for `colorful-color-keywords'.")
+
+(defcustom colorful-extra-color-keywords-hook nil
+ "Hook used for add extra color keywords to `colorful-color-keywords'."
+ :group 'dashboard
+ :type 'hook)
+
+(defun colorful-add-color-names ()
+ "Function for add Emacs color names to `colorful-color-keywords'.
+This is intended to be used with `colorful-extra-color-keywords-hook'."
+ (dolist (colors colorful-color-name-font-lock-keywords)
+ (add-to-list 'colorful-color-keywords colors t)))
+
+
+;; Minor mode definitions.
+
+(defun colorful--turn-on ()
+ "Helper function for turn on `colorful-mode'."
+ (run-hooks 'colorful-extra-color-keywords-hook)
+
+ (font-lock-add-keywords nil
+ colorful-color-keywords)
+
+ ;; Refresh font-lock
+ (font-lock-flush))
+
+(defun colorful--turn-off ()
+ "Helper function for clear colorful overlays."
+ (font-lock-remove-keywords
+ nil `(,@colorful-color-keywords))
+ (remove-overlays nil nil 'colorful--overlay t)
+ ;; Refresh font-lock
+ (font-lock-flush))
+
+;;;###autoload
+(define-minor-mode colorful-mode
+ "Preview color hexs in current buffer.
+This will fontify colors strings like \"#aabbcc\" or \"blue\"."
+ :lighter nil
+ :group 'colorful-mode
+ (if colorful-mode
+ (colorful--turn-on)
+ (colorful--turn-off)))
+
+;;;###autoload
+(define-globalized-minor-mode global-colorful-mode
+ colorful-mode colorful--turn-on
+ :predicate '(prog-mode text-mode)
+ :group 'corfu)
+
+
+(provide 'colorful-mode)
+;;; colorful-mode.el ends here
