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-rw-r--r--emacs-init.org51
1 files changed, 36 insertions, 15 deletions
diff --git a/emacs-init.org b/emacs-init.org
index 8899445..d2f55ff 100644
--- a/emacs-init.org
+++ b/emacs-init.org
@@ -304,17 +304,24 @@ Instead of the above code I set the font directly using
appreciate light themes more. [[https://gitlab.com/protesilaos/modus-themes][modus-operandi]] is an interesting light
theme promising high color contrast. I ended up using the
=spacemacs-light= and =spacemacs-dark= themes.
-#+begin_src emacs-lisp
+
+This is written here for clarity, but only executed at the end of my
+init files, after some variables which depend on the current theme are
+defined, for example ~pdf-view-midnight-colors~.
+#+NAME: themes
+#+begin_src emacs-lisp :tangle no
+<<theme-functions>>
(defcustom fpi/light-theme-list '(spacemacs-light spacemacs-light-customizations)
"List of themes to activate when using a light theme.")
(defcustom fpi/dark-theme-list '(spacemacs-dark spacemacs-dark-customizations)
"List of themes to activate when using a dark theme.")
(defcustom fpi/current-theme 'light
- "Currently activated theme variation.")
+ "Currently activated theme variation."
+ :set #'fpi/set-and-reload-theme)
#+end_src
-Function to load themes based on the ~fpi/current-theme~ setting.
-#+begin_src emacs-lisp
+Functions to load themes based on the ~fpi/current-theme~ setting and to toggle the current theme between light and dark.
+#+begin_src emacs-lisp :noweb-ref theme-functions :tangle no
(defun fpi/load-themes (&optional theme-variation)
"Load themes based on the value of `fpi/current-theme'.
@@ -325,12 +332,24 @@ of `(format \"fpi/%s-theme-list\" fpi/current-theme)'"
(mapc 'disable-theme custom-enabled-themes);; disable all themes
(let* ((theme-variation (or theme-variation fpi/current-theme))
(themes (eval (intern (format "fpi/%s-theme-list" theme-variation)))))
- (mapc (lambda (theme) (load-theme theme t)) themes)
- ))
+ (mapc (lambda (theme) (load-theme theme t)) themes)))
+(defun fpi/set-and-reload-theme (symbol value)
+ "Set SYMBOL to VALUE and update themes.
+
+Set SYMBOL to VALUE with `set-default'if it is not already set to
+that value and update the loaded themes afterwards."
+ (when (not (and (boundp symbol) (eq (eval symbol) value)))
+ (set-default symbol value)
+ (fpi/load-themes)))
+(defun fpi/toggle-theme ()
+ "Toggle between light and dark theme."
+ (interactive)
+ (if (eq fpi/current-theme 'light)
+ (customize-save-variable 'fpi/current-theme 'dark)
+ (customize-save-variable 'fpi/current-theme 'light)))
#+end_src
-Load the themes. This is written here for clarity, but only executed at the end of the initialization after ~pdf-view-midnight-colors~, etc. are defined.
-#+begin_src emacs-lisp :tangle no :noweb-ref load-theme
-(fpi/load-themes)
+#+begin_src emacs-lisp :tangle no :noweb-ref fpi-bindings
+(define-key fpi/toggle-map "dt" #'fpi/toggle-theme)
#+end_src
*** Getting themes
#+begin_src emacs-lisp
@@ -362,7 +381,7 @@ First a function to replace colors in the face specs.
This call now creates a custom theme based on the settings in the sections
[[id:82021d54-89d6-4712-8e5a-df2fc6177c96][Colors]] and [[id:a3b74d3b-675e-426d-b675-e70dcfd3d2b6][Faces]]. These are my customizations to the spacemacs theme. Make sure to manually run these customization blocks after changing a face, as only the result blocks are tangled!
-#+begin_src emacs-lisp :tangle no :results code replace :wrap "src emacs-lisp :tangle tangle/spacemacs-dark-customizations-theme.el"
+#+begin_src emacs-lisp :tangle no :results code replace :wrap "src emacs-lisp :tangle tangle/spacemacs-dark-customizations-theme.el" :exports both
`(progn
(deftheme spacemacs-dark-customizations
"My customizations to spacemacs-dark (Created 2020-06-27)")
@@ -707,7 +726,7 @@ This call now creates a custom theme based on the settings in the sections
(provide-theme 'spacemacs-dark-customizations))
#+end_src
-#+begin_src emacs-lisp :tangle no :results code replace :wrap "src emacs-lisp :tangle tangle/spacemacs-light-customizations-theme.el"
+#+begin_src emacs-lisp :tangle no :results code replace :wrap "src emacs-lisp :tangle tangle/spacemacs-light-customizations-theme.el" :exports both
`(progn
(deftheme spacemacs-light-customizations
"My customizations to spacemacs-light (Created 2020-06-27)")
@@ -2353,10 +2372,12 @@ would be better to unbind them only when in ~pdf-view-mode~.
Advice =load-theme= to update the colors for =pdf-view-midnight-mode=
after the theme changes.
-#+begin_src emacs-lisp :tangle no :noweb-ref pre-load-theme
+#+NAME: theme-dependent-vars
+#+begin_src emacs-lisp :tangle no
(defadvice load-theme (after update-pdf-view-midnight-color activate)
- (setq pdf-view-midnight-colors `(,(face-attribute 'default :foreground) . ,(face-attribute 'default :background))))
+ (customize-save-variable 'pdf-view-midnight-colors `(,(face-attribute 'default :foreground) . ,(face-attribute 'default :background))))
#+end_src
+
** Latex
#+begin_src emacs-lisp
(use-package tex-site
@@ -4493,6 +4514,6 @@ temporary buffer is created.
Some stuff that is run after everything else.
#+begin_src emacs-lisp
-<<pre-load-theme>>
-<<load-theme>>
+<<theme-dependent-vars>>
+<<themes>>
#+end_src