ryuslash/mode-icons
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Allow desaturated mode-line icons.

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Matthew Fidler 2016-03-31 12:38:09 -05:00
parent 34dc1e8851
commit 9403061cbf
3 changed files with 132 additions and 18 deletions
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2
CHANGELOG.md
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@ -40,6 +40,8 @@ This project adheres to [Semantic Versioning](http://semver.org/).
- This can be customized by the variable =mode-icons-change-mode-name=.
- This should be modified for packages like =powerline= and
=smart-mode-line=.
- Allow desaturating and matching the mode-line face colors for xpm
images.
### Removed

19
README.org
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@ -42,6 +42,25 @@ This may not work with enhanced mode-lines like ~poweline~ or
~smart-mode-line~, since they typically look at the ~mode-name~
variable.
Additionally, if the image icon was an ~xpm~ icon, then you can have
it changed to match your mode-line face. In the example below, the
inactive mode-line shows the emacs and yasnippet icon changed to match
the inactive mode-line:
[[http://i.imgur.com/QOM9wYM.png]]
This is enabled by default, and can be disabled by:
#+BEGIN_SRC emacs-lisp
(setq mode-icons-desaturate-inactive nil)
#+END_SRC
You can also change the icon to match the active mode line (disabled by default):
#+BEGIN_SRC emacs-lisp
(setq mode-icons-desaturate-active t)
#+END_SRC
* Requirements
As of version 0.3.0 you can also use icons from some icon fonts,

129
mode-icons.el
View file

@ -274,11 +274,21 @@ without the extension. And the third being the type of icon."
(const :tag "Black and White xpm that changes color to match the mode-line face" xpm-bw))))
:group 'mode-icons)
(defvar mode-icons-get-xpm-string (make-hash-table :test 'equal))
(defun mode-icons-get-xpm-string (icon-path)
"Get XPM file contents for ICON-PATH.
If ICON-PATH is a string, return that."
(or (and (file-exists-p icon-path)
(or (gethash icon-path mode-icons-get-xpm-string)
(puthash icon-path (with-temp-buffer (insert-file-contents icon-path) (buffer-string))
mode-icons-get-xpm-string)))
(and (stringp icon-path) icon-path)))
(defun mode-icons-get-icon-display-xpm-replace (icon-path rep-alist &optional name)
"Get xpm image from ICON-PATH and reaplce REP-ALIST in file.
When NAME is non-nil, also replace the internal xpm image name."
(let ((case-fold-search t)
(img (with-temp-buffer (insert-file-contents icon-path) (buffer-string))))
(img (mode-icons-get-xpm-string icon-path)))
(dolist (c rep-alist)
(setq img (replace-regexp-in-string (regexp-quote (car c)) (cdr c) img t t)))
(when name
@ -299,7 +309,8 @@ If FACTOR is unspecified, use 0.5"
(defun mode-icons-interpolate-from-scale (foreground background)
"Interpolate black to FOREGROUND and white to BACKGROUND.
Grayscales are in between."
Grayscales are in between.
Assumes that FOREGROUND and BACKGROUND are (r g b) lists."
(let ((black '(0.0 0.0 0.0))
(white '(1.0 1.0 1.0))
lst tmp
@ -329,6 +340,77 @@ Grayscale colors are aslo changed by `mode-icons-interpolate-from-scale'."
(or (gethash sym mode-icons-get-icon-display-xpm-bw-face)
(puthash sym (mode-icons-get-icon-display-xpm-replace icon-path lst name) mode-icons-get-icon-display-xpm-bw-face))))
(defun mode-icons-get-xpm-icon-colors (icon-path)
"Get a list of rgb colors based on ICON-PATH xpm icon.
ICON-PATH can be a XPM string or a XPM file."
(let (colors)
(with-temp-buffer
(insert (mode-icons-get-xpm-string icon-path))
(goto-char (point-min))
(while (re-search-forward "#[0-9A-Fa-f]\\{6\\}" nil t)
(push (color-name-to-rgb (match-string 0)) colors)))
colors))
(defun mode-icons-desaturate-colors (colors &optional foreground background)
"Desaturate COLORS.
If COLORS is an icon-path of an xpm file, use the colors from
that file.
When FOREGROUND and BACKGROUND are both non-nil, use
`mode-icons-interpolate-from-scale' to change the grayscale to
match the foreground (black) and background (white) colors.
Assume that COLORS is a list of (r g b) values.
Returns a replacement list for `mode-icons-get-icon-display-xpm-replace'"
(if (and colors (stringp colors))
(mode-icons-desaturate-colors (mode-icons-get-xpm-icon-colors colors) foreground background)
(let (color-list
val tmp
(trans-alist (and foreground background (mode-icons-interpolate-from-scale foreground background))))
(dolist (color colors)
(setq val (+ (* 0.3 (nth 0 color)) (* 0.59 (nth 1 color)) (* 0.11 (nth 2 color)))
val (color-rgb-to-hex val val val))
(when (and trans-alist (setq tmp (assoc val trans-alist)))
(setq val (cdr tmp)))
(push (cons (color-rgb-to-hex (nth 0 color) (nth 1 color) (nth 2 color)) val) color-list))
color-list)))
(defun mode-icons-desaturate-xpm (icon-path &optional face)
"Desaturate the xpm at ICON-PATH.
When FACE is non-nil, match the foreground and background colors
in FACE instead of making the image black and white."
(let* ((background (color-name-to-rgb (face-background (or face 'mode-line))))
(foreground (color-name-to-rgb (face-foreground (or face 'mode-line))))
(lst (mode-icons-desaturate-colors icon-path foreground background))
(name (concat "mode_icons_desaturate_"
(or (and background foreground
(substring (mode-icons-interpolate background foreground 0.0) 1))
"black") "_"
(or (and background foreground
(substring (mode-icons-interpolate background foreground 1.0) 1))
"white") "_"
(file-name-sans-extension (file-name-nondirectory icon-path))))
(sym (intern name)))
(or (gethash sym mode-icons-get-icon-display-xpm-bw-face)
(puthash sym (mode-icons-get-icon-display-xpm-replace icon-path lst name) mode-icons-get-icon-display-xpm-bw-face))))
(defcustom mode-icons-desaturate-inactive t
"Should the inactive mode-line be desaturated.
And changed to match the icon colors?
This only works with xpm files."
:type 'boolean
:group 'mode-icons)
(defcustom mode-icons-desaturate-active nil
"Should the active mode-line be desaturated.
And changed to match the icon colors?
This only works with xpm files."
:type 'boolean
:group 'mode-icons)
(defvar mode-icons-get-icon-display (make-hash-table :test 'equal)
"Hash table of `mode-icons-get-icon-display'.")
@ -341,20 +423,29 @@ the icon.
FACE should be the face for rendering black and white xpm icons
specified by type 'xpm-bw."
(let ((face (or face
(and (mode-icons--selected-window-active)
'mode-line)
'mode-line-inactive)))
(or (gethash (list icon type face custom-enabled-themes) mode-icons-get-icon-display)
(puthash (list icon type face custom-enabled-themes)
(let* ((active (mode-icons--selected-window-active))
(face (or face (and active 'mode-line) 'mode-line-inactive))
(key (list icon type face active
mode-icons-desaturate-inactive mode-icons-desaturate-active
custom-enabled-themes)))
(or (gethash key mode-icons-get-icon-display)
(puthash key
(let ((icon-path (mode-icons-get-icon-file
(concat icon "." (or (and (eq type 'xpm-bw) "xpm")
(symbol-name type))))))
(if (eq type 'xpm-bw)
(cond
((eq type 'xpm-bw)
(create-image (mode-icons-get-icon-display-xpm-bw-face icon-path face)
'xpm t :ascent 'center
:face face)
`(image :type ,(or (and (eq type 'jpg) 'jpeg) type) :file ,icon-path :ascent center :face ',face)))
:face face))
((and (eq type 'xpm)
(or (and active mode-icons-desaturate-active)
(and (not active) mode-icons-desaturate-inactive)))
(create-image (mode-icons-desaturate-xpm icon-path face)
'xpm t :ascent 'center
:face face))
(t
`(image :type ,(or (and (eq type 'jpg) 'jpeg) type) :file ,icon-path :ascent center :face ',face))))
mode-icons-get-icon-display))))
(defcustom mode-icons-minor-mode-base-text-properties
@ -602,10 +693,12 @@ FACE represents the face used when the icon is a xpm-bw image."
(unless mode-icons-cached-mode-name
(set (make-local-variable 'mode-icons-cached-mode-name)
mode-name)
(set (make-local-variable 'mode-icons-mode-name-active)
(mode-icons-get-mode-icon mode 'mode-line))
(set (make-local-variable 'mode-icons-mode-name-inactive)
(mode-icons-get-mode-icon mode 'mode-line-inactive))
(let ((mode-icons-desaturate-inactive mode-icons-desaturate-active))
(set (make-local-variable 'mode-icons-mode-name-active)
(mode-icons-get-mode-icon mode 'mode-line)))
(let ((mode-icons-desaturate-active mode-icons-desaturate-inactive))
(set (make-local-variable 'mode-icons-mode-name-inactive)
(mode-icons-get-mode-icon mode 'mode-line-inactive)))
(setq mode-name (mode-icons-get-mode-icon mode))))
(defun mode-icons-major-mode-icons-undo ()
@ -694,10 +787,10 @@ When DONT-UPDATE is non-nil, don't call `force-mode-line-update'"
;; focus-in-hook was introduced in emacs v24.4.
;; Gets evaluated in the last frame's environment.
(add-hook 'focus-in-hook 'mode-icons--set-selected-window)
;; (add-hook 'focus-in-hook 'mode-icons--set-selected-window)
;; focus-out-hook was introduced in emacs v24.4.
(add-hook 'focus-out-hook 'mode-icons--unset-selected-window)
;; (add-hook 'focus-out-hook 'mode-icons--unset-selected-window)
;; Executes after the window manager requests that the user's events
;; be directed to a different frame.
@ -718,7 +811,7 @@ When DONT-UPDATE is non-nil, don't call `force-mode-line-update'"
"Recolor MODE image based on if the window is ACTIVE."
(let ((icon-spec (get-text-property 0 'mode-icons-p mode)))
(cond
((and icon-spec (eq (nth 2 icon-spec) 'xpm-bw))
((and icon-spec (memq (nth 2 icon-spec) '(xpm xpm-bw)))
(propertize mode 'display (mode-icons-get-icon-display (nth 1 icon-spec) (nth 2 icon-spec)
(or (and active 'mode-line)
'mode-line-inactive))