Re: [patch] vc-annotate-toggle-annotation-visibility, almost

[Stefan Monnier <monnier@iro.umontreal.ca>]

> "almost" because i don't see any change w/ `redisplay'
> in `vc-annotate-toggle-annotation-visibility'; use of
> `force-mode-line-update' is suboptimal.  still investigating.

Use of force-mode-line-update doesn't seem particularly bad to me
(assuming it works).

>   You can use the mode-specific menu to alter the time-span of the used
>   colors.  See variable `vc-annotate-menu-elements' for customizing the
>   menu items."
> +   (setq buffer-invisibility-spec nil)
>     (set (make-local-variable 'truncate-lines) t)
>     (set (make-local-variable 'font-lock-defaults)
>          '(vc-annotate-font-lock-keywords t))
>     (view-mode 1))

Why?
  
> +   (when (get-text-property (point) 'invisible)
> +     (goto-char (next-single-property-change (point) 'invisible)))

What is this for?

We could additionally put commands to print the (invisible) annotation
in the echo-area, and also add a `help-echo' property to the whole
buffer so as to get tooltips that display the (invisible) annotation.


        Stefan