Hello, This uses the standard Emacs function `split-window-sensibly` to split a window horizontally or vertically depending on space when opening a message in tree view. By default, split-width-threshold is 160 columns (and -height- is nil), so screens wider than 160 will be split horizontally.
This is based on an older proposal [1] which manually did the calculation of width. The main issues there were (1) lack of configurability and (2) lack of testing. I don't have an answer for testing, but this allows users to configure two thresholds using built-in variables, an improvement. Also, should I update the NEWS file? I see its latest changes are in November and there's been user-visible changes since. Thanks, Radu [1]: http://notmuch.198994.n3.nabble.com/emacs-Split-wide-window-vertically-for-tree-mode-message-pane-td4039070.html The original patch email follows: >From 1ce4789b11007b46619faed7bf14f54686ca3538 Mon Sep 17 00:00:00 2001 From: Radu Butoi <rbu...@gmail.com> Subject: [PATCH] emacs: split-window-sensibly in tree mode with open message When showing messages in tree-mode, this will split the window horizontally or vertically depending on the split-{width,height}-threshold. --- emacs/notmuch-tree.el | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/emacs/notmuch-tree.el b/emacs/notmuch-tree.el index 254664c4..353700a1 100644 --- a/emacs/notmuch-tree.el +++ b/emacs/notmuch-tree.el @@ -524,8 +524,7 @@ NOT change the database." ;; We close and reopen the window to kill off un-needed buffers ;; this might cause flickering but seems ok. (notmuch-tree-close-message-window) - (setq notmuch-tree-message-window - (split-window-vertically (/ (window-height) 4))) + (setq notmuch-tree-message-window (split-window-sensibly)) (with-selected-window notmuch-tree-message-window ;; Since we are only displaying one message do not indent. (let ((notmuch-show-indent-messages-width 0) -- 2.26.2 _______________________________________________ notmuch mailing list notmuch@notmuchmail.org https://notmuchmail.org/mailman/listinfo/notmuch