Hot to clear screen, display the full content of a variable, and resize the buffer window horizontally for dap-ui mode?

[hongyi-zhao]

I'm trying to use the repl feature of dap-mode by the following setting:

(setq dap-auto-configure-features '(sessions locals breakpoints expressions repl controls tooltip)

But I found some problems that I don't know how to solve, as shown in the figure below:

To be more specific:

1. How to clear screen in the dap-ui buffer?
2. How to display the full content of a variable under the terminal of the dap-ui buffer?
3. Hot to resize the buffer window horizontally?

Regards, HZ

[yyoncho]

For 1 use M-x comint-clear-buffer. For 2 I have to investigate more.

[hongyi-zhao]

Another issue: Unable to adjust the size of all buffer windows horizontally by dragging and dropping. I found some discussion here, but still can't figure out the solution.

[yyoncho]

There is treemacs-lock-width

[hongyi-zhao]

I've tried with the following configuration, but still can't solve the problem:

(use-package treemacs
  :config
  (setq treemacs-width-is-initially-locked nil)
  )

[yyoncho]

What is treemacs-width-is-initially-locked?

[hongyi-zhao]

For 1 use M-x comint-clear-buffer

Yes. It doesn't the trick. Thank you for letting me know this trick.

[hongyi-zhao]

What is treemacs-width-is-initially-locked?

`C-h o treemacs-width-is-initially-locked RET'

treemacs-width-is-initially-locked is a variable defined in ‘treemacs-customization.el’.

Its value is nil
Original value was t

Indicates whether the width of the treemacs window is initially locked.
A locked width means that changes it is only possible with the commands
‘treemacs-set-width’ or ‘treemacs-toggle-fixed-width’.

  You can customize this variable.

[yyoncho]

Then check the value of window-size-fixed in that buffer. If it is t you can use M-x debug-on-variable-change to find who is setting it to true. Also, there is treemacs-toggle-fixed-width to enable resizing.

[hongyi-zhao]

Then check the value of window-size-fixed in that buffer.

Also, there is treemacs-toggle-fixed-width to enable resizing.

Got the following message:

[Treemacs] There is no treemacs buffer in the current scope.

[yyoncho]

Did you try to call the command in the treemacs buffer? Did you inspect the value of the variable in treemacs buffer?

[hongyi-zhao]

I just put the point in the python code window, and then call treemacs-toggle-fixed-width. Now, I restart Emacs and then call the command again. Even the above message doesn't appear, but I still can't resize the window horizontally:

[yyoncho]

Then I don't know - setting window-size-fixed to nil in treemacs window on my side works fine.

[hongyi-zhao]

Got it. I figured out the following configuration, which is adapted from here:

(use-package treemacs
  :commands (treemacs
             treemacs-follow-mode
             treemacs-filewatch-mode
             treemacs-fringe-indicator-mode)
  :bind (("<f8>" . treemacs)
         ("<f9>" . treemacs-select-window))
  :init
  (when window-system
    (setq treemacs-width-is-initially-locked nil)
    (treemacs-follow-mode t)
    (treemacs-filewatch-mode t)
    (treemacs-fringe-indicator-mode t)
    (treemacs))) 

It seems the mouse must be put at specific locations on the separator bars to adjust the buffer window horizontal size, as shown below by the red circles:

To be more specific, if window size has been locked, only positions 3, 4, and 5 are usable for resizing, after unlocked with M-x treemacs-toggle-fixed-width RET, all positions are vaild.