* Working with buffers in frames
@ 2024-09-30 12:32 Heime
0 siblings, 0 replies; only message in thread
From: Heime @ 2024-09-30 12:32 UTC (permalink / raw)
To: Heime via Users list for the GNU Emacs text editor
After inserting some text, text properties and possibly some buttons in a
named buffer, I want this to be contained in some dedicated frame that is
separate from the current working frame.
For instance, consider the following function
(defun quest-background-colour-chart-b (hex-colours &optional bfrn)
"Display background colors for a given list of HEX-COLOURS in a new buffer."
(interactive)
(let* ( (colours hex-colours)
(bfname (or bfrn "Quest Colours"))
(dbuffer (get-buffer-create (concat "𒆳 " bfname))))
(with-current-buffer dbuffer
(erase-buffer)
;; Set background colour for buffer
(face-remap-add-relative 'default :background "blue")
(insert "\n")
(dolist (hex colours)
(let* ( (hex-text (format " %s " hex))
(text (format "Colour: %s\n" hex))
(hex-pt (point)) )
(insert hex-text)
(add-text-properties hex-pt (point)
`(face (:foreground "white")))
(let ( (text-pt (point)) )
(insert text)
(add-text-properties text-pt (point)
`(face (:background ,hex :foreground "black"))))))
(goto-char (point-min)))
(switch-to-buffer dbuffer)))
Instead of the common switch-to-buffer I have begun calling
the following, to handle the buffer in the frame quest-frame.
(select-frame-set-input-focus quest-frame)
(set-window-buffer (frame-selected-window quest-frame) dbuffer)))
Still, one do not necessarily need to use select-frame-set-input-focus or
set-window-buffer directly. Because Emacs provides built-in functions like
pop-to-buffer, display-buffer, and switch-to-buffer, which can handle displaying
buffers in different frames.
display-buffer is the most flexible function for displaying a buffer. It can
be used to specify rules for how and where to display the buffer, including
creating new frames.
The same can be said of pop-to-buffer. But for switch-to-buffer you'd have
to manually switch to the frame first, then use switch-to-buffer to show the
buffer in that frame. view-buffer is similar to switch-to-buffer, but intended
for read-only viewing of a buffer.
I would value some practical advice, examples, and useful approaches and takeaways
if one wants to display buffers in dedicated frames.
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2024-09-30 12:32 Working with buffers in frames Heime
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