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Re: [Axiom-developer] Re: axiom-mode
From: |
Jay Belanger |
Subject: |
Re: [Axiom-developer] Re: axiom-mode |
Date: |
Tue, 22 May 2007 16:11:20 -0500 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.1.50 (gnu/linux) |
Martin Rubey <address@hidden> writes:
...
> Another, maybe simpler idea: have a command axiom-set-face which allows the
> user to specify a face and make within the output region the up, down, right
> and left paint.
Is there any reason the paint would be disabled outside the output
region?
> Or maybe M-up, M-down, M-right and M-left. Or the same with
> C-prefix. This would render the implementation trivial, probably,
> and may even be more useable.
,,,
> We need cursor combinations for:
>
> * move to previous input line
> * get previous input C-up / C-down
> * move within the input region left / right
> * move within the output region
> * paint within the output region
Why are "move within the input region" and "move within the output
region" separate?
> Thus, maybe:
>
> left/right/up/down: move ordinarily (i.e., one line)
> Shift-left/right/up/down: paint within output region
> Ctrl-up/down fetch previous/next input
> M-up/down move to previous / next input.
>
> What do you think?
It looks pretty slick. You might want different paint commands,
though, since I think "shift-arrow" is the same as "arrow" in a
terminal.
> -------------------------------------------------------------------------------
>
> Apart from this, I seem to have a problem with overlays:
>
> (defface axiom-blue-output '((t (:background "blue")))
> ""
> :group 'axiom)
> (defface axiom-red-output '((t (:background "red")))
> ""
> :group 'axiom)
>
>
> (defun make-blue ()
> (interactive)
> (let ((over (make-overlay (point) (+ (point) 1) nil nil t)))
> (overlay-put over 'face 'axiom-blue-output)))
>
> (defun make-red ()
> (interactive)
> (let ((over (make-overlay (point) (+ (point) 1) nil nil t)))
> (overlay-put over 'face 'axiom-red-output)))
>
> It seems that I cannot color something blue that was previously red?
I guess the older overlays have higher precedence than newer ones, but
the manual doesn't seem to mention that. I suppose you could give the
overlays a special property to test for, and then remove older
overlays with that property before putting on a new one; something like:
(defun make-blue ()
(interactive)
(let* ((beg (point))
(end (1+ beg))
(over (make-overlay beg end nil nil t)))
(remove-overlays beg end 'axiom-face t)
(overlay-put over 'face 'axiom-blue-output)
(overlay-put over 'axiom-face t)))
(defun make-red ()
(interactive)
(let* ((beg (point))
(end (1+ beg))
(over (make-overlay beg end nil nil t)))
(remove-overlays beg end 'axiom-face t)
(overlay-put over 'face 'axiom-red-output)
(overlay-put over 'axiom-face t)))
I noticed that overlays can be used to give different regions of text
different keymaps, by the way.
Jay
- Re: [Axiom-developer] Re: axiom-mode, (continued)
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, C Y, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, C Y, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Ralf Hemmecke, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, C Y, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode,
Jay Belanger <=
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Jay Belanger, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, C Y, 2007/05/23
- Re: [Axiom-developer] Re: axiom-mode, Jay Belanger, 2007/05/22
- Re: [Axiom-developer] Re: axiom-mode, Martin Rubey, 2007/05/22
- [Axiom-developer] Re: axiom-mode, C Y, 2007/05/22
- Re: [Axiom-developer] RE: TeXmacs+Axiom, Ralf Hemmecke, 2007/05/22
- [Axiom-developer] Re: TeXmacs+Axiom, Ralf Hemmecke, 2007/05/21
Re: [Axiom-developer] New blood in Axiom (was: Community), Gabriel Dos Reis, 2007/05/20
RE: [Axiom-developer] New blood in Axiom (was: Community), Bill Page, 2007/05/21