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bug#53520: [PATCH] tabulated-list gradually truncate image


From: Thuna
Subject: bug#53520: [PATCH] tabulated-list gradually truncate image
Date: Tue, 25 Jan 2022 12:08:18 +0300

Previously images were displayed as is which would potentially cause
misalignment if the column width were less than the image width.  Image
is now cropped width-wise to fit the column width.  This patch, however,
does not affect the height of the image.

diff --git a/lisp/emacs-lisp/tabulated-list.el 
b/lisp/emacs-lisp/tabulated-list.el
index 2ace7ebb35..b964dd56e9 100644
--- a/lisp/emacs-lisp/tabulated-list.el
+++ b/lisp/emacs-lisp/tabulated-list.el
@@ -577,7 +577,11 @@ tabulated-list-print-col
                      (propertize label 'help-echo help-echo))))
           ((eq (car col-desc) 'image)
            (insert (propertize " "
-                               'display col-desc
+                               'display `(,col-desc
+                                          (slice 0.0 0.0
+                                                 ,(* (frame-char-width)
+                                                     available-space)
+                                                 1.0))
                                'help-echo help-echo)))
           ((apply 'insert-text-button label (cdr col-desc))))
     (let ((next-x (+ x pad-right width)))

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