diff options
Diffstat (limited to 'lisp/calc/calc.el')
| -rw-r--r-- | lisp/calc/calc.el | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/lisp/calc/calc.el b/lisp/calc/calc.el index 7ea371dd16e..e0560465a99 100644 --- a/lisp/calc/calc.el +++ b/lisp/calc/calc.el @@ -425,6 +425,27 @@ in normal mode." :group 'calc :type 'integer) +(defcustom calc-highlight-selections-with-faces + nil + "If non-nil, use a separate face to indicate selected sub-formulas. +If `calc-show-selections' is non-nil, then selected sub-formulas are shown +by displaying the rest of the formula in `calc-nonselected-face'. +If `calc-show-selections' is nil, then selected sub-formulas are shown +by displaying the sub-formula in `calc-selected-face'." + :group 'calc + :type 'boolean) + +(defface calc-nonselected-face + '((t :inherit shadow + :slant italic)) + "Face used to show the non-selected portion of a formula." + :group 'calc) + +(defface calc-selected-face + '((t :weight bold)) + "Face used to show the selected portion of a formula." + :group 'calc) + (defvar calc-bug-address "jay.p.belanger@gmail.com" "Address of the maintainer of Calc, for use by `report-calc-bug'.") @@ -1385,8 +1406,7 @@ commands given here will actually operate on the *Calculator* stack." (set (make-local-variable 'calc-main-buffer) buf)) (when (= (buffer-size) 0) (let ((buffer-read-only nil)) - (insert (propertize (concat "Emacs Calculator Trail\n") - 'font-lock-face 'italic)))) + (insert (propertize "Emacs Calculator Trail\n" 'face 'italic)))) (run-mode-hooks 'calc-trail-mode-hook)) (defun calc-create-buffer () @@ -1976,7 +1996,7 @@ See calc-keypad for details." (erase-buffer) (when calc-show-banner (insert (propertize "--- Emacs Calculator Mode ---\n" - 'font-lock-face 'italic))) + 'face 'italic))) (while thing (goto-char (point-min)) (when calc-show-banner |