致好色的emacs 用户

Emacs 中的 color-theme.el 模块提供了很多好看的配色 方案。可以在网络上搜索并且下在这个文件。

如果你有几个 color theme 都很好，难于取舍，想每隔 一段是自动换一个color theme ，那么试试下面的方法。

创建下面的目录结构:

~/Emacs/myconfig/color-themes/console
~/Emacs/myconfig/color-themes/gui

然后

M-x color-theme-select

选择你喜欢 color theme 然后 press p，打开选择的配 色方案的对应的代码，然后 C-x C-s 保存到对应的目录 中去，取个的名字。

图形界面的放在

~/Emacs/myconfig/color-themes/gui

字符界面的放在

~/Emacs/myconfig/color-themes/console

文件名称一定要以 el 为扩展名称,例如

ocean-deep.el

不要改动文件内容, 尤其是不要改动

(defun my-color-theme ()

的那一行，函数名字一定要是 my-color-theme

然后在你的 .emacs 中添加:

(require 'color-theme)
(setq color-themes-directory-name "~/Emacs/myconfig/color-themes")
(if (display-graphic-p)
    (setq color-themes-directory-name
          (concat color-themes-directory-name "/gui"))
  (setq color-themes-directory-name
        (concat color-themes-directory-name "/console")))


(let* ((files (directory-files color-themes-directory-name
                               t
                               "^[^.].*\.el$"))
       (randnum (% (abs (random t)) (length files )))
       (selected-filename (nth randnum files)))
  (load selected-filename)
  (my-color-theme))

效果就是，每次启动 emacs 的时候，随机选择一个 color theme.

我现在只有两个 color theme, 一个是 blue mode 一个是crazytool 提供的ocean deep 要 是大家多提供几种漂亮的 theme 就好了 !

下面的函数也很有用

(defun wcy-color-theme-edit ()
  (interactive)
  (find-file current-color-theme-file-name))


(defun wcy-color-theme-apply ()
  (interactive)
  (my-color-theme)
  (wcy-color-theme-adjust-hl-mode-face))
(defun wcy-color-theme-load-theme ( name)
  (setq current-color-theme-file-name (concat color-themes-directory-name name ".el"))
  (load current-color-theme-file-name))
(defun wcy-select-color-theme ()
  (interactive)
  (let* ((files (mapcar
                 (function (lambda (s)
                             (list (replace-regexp-in-string "\\(.*\\)\\.el$" "\\1" s))))
                 (directory-files color-themes-directory-name
                                         nil
                                         "^[^.].*\\.el$")))
         (theme (completing-read "Input a theme:"
                                 files)))
    (wcy-color-theme-load-theme theme)
    (wcy-color-theme-apply)))
(defun wcy-random-select-color (&optional prefer)
  (interactive)
  (let* ((files (mapcar
                 (function (lambda (s)
                             (replace-regexp-in-string "\\(.*\\)\\.el$" "\\1" s)))
                 (directory-files color-themes-directory-name
                                  nil
                                  "^[^.].*\\.el$")))
         (randnum (% (abs (random t)) (length files )))
         (theme (nth randnum files)))
    (wcy-color-theme-load-theme theme)
    (wcy-color-theme-apply)))

;; 下面的是调整 hight line mode 下的高亮显示行的背景颜色
(require 'hl-line)
;;(hl-line-mode -1)
;;(global-hl-line-mode -1)
;; for hight line mode
(or (facep 'my-hl-line-face) (make-face 'my-hl-line-face))
(setq hl-line-face 'my-hl-line-face)
(face-spec-set 'my-hl-line-face '((t (
                                      :background "DodgerBlue3"
                                                  ;;:bold
                                                  ;;:weight nil
                                      :inverse-video nil
                                      ))))
(defun wcy-color-theme-adjust-hl-mode-face()
  "interactive"
  (let* ((color  (x-color-values (face-attribute 'default :background))))
    (if (null color)
        (error "not support.")
      (let ((my-color (mapcar
                       (lambda (x)
                         (let ((y (/ #XFFFF 4))
                               (delta #X8FF))
                           (cond
                            ((< x (* y 1))
                             (+ x delta))
                            ((< x (* y 2))
                             (- x delta))
                            ((< x (* y 3))
                             (+ x delta))
                            (t
                             (- x delta)))))
                       color)))
        (message "%S %S" color my-color)
        (set-face-attribute
         'my-hl-line-face nil
         :background
         (concat "#"
                 (mapconcat
                  (lambda (c) (format "%04X" c))
                  my-color
                  "")))))))
(wcy-color-theme-adjust-hl-mode-face)

M-x wcy-select-color-theme 就可以选择一个 theme , 可以自动补全.