Questions tagged [display]

is for Emacs display features, which includes scrolling, fonts, colors, and placement of text or images.

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17
votes
2answers
2k views

How do I set up font fallback in a robust way?

TL;DR: What's a simple way to reliably say: use Consolas as the default font, FreeMono for the characters unsupported by Consolas, and Symbola for characters unsupported by both? Since my main ...
93
votes
8answers
32k views

How can I get a ruler at column 80?

As a programmer, I want to see a ruler at a specific column (usually 80), both so I see when I cross that column, but also to see how close I am getting to it so I can reformat my code early. The ...
2
votes
1answer
37 views

How to get the display dimensions of the display emacs is in?

I tried querying the display width using: (display-pixel-width) however this reports the pixel width of my external monitor instead of the laptop's display, where emacs is. Is there a way to show the ...
3
votes
0answers
30 views

How do you force the width of a fallback font to be the same as the one of the main font, assuming monospace fonts?

I use Emacs with monospace fonts, and I would like all the characters to have the same width, which is the purpose of monospace fonts. The issue is that the main font may not support all the ...
0
votes
1answer
38 views

Display Δ in the *Shell Command Output* Buffer

I have a shell command I'm running from Emacs that has a Δ character in its output. How can I configure the *Shell Command Output* buffer to display UTF-8 by default? edit: There could also be ...
2
votes
2answers
123 views

Move point inside of image overlay

I'm trying to create a realtime/WYSIWYG editor for LaTeX fragments -- the general idea is that at each move of point / edit of the fragment, the overlay should update to reflect the newly changed ...
12
votes
2answers
891 views

Align columns in Org mode table with Japanese fonts

How can I mix Japanese and English in the same org-mode table (that uses fixed-width fonts)? Something like: | m m m m m m | | | はどう デシウ | | | ハーフ | ハーフ | won't align. ...
11
votes
2answers
754 views

How can I suppress emacs' cursor moving into the empty last line of a file?

One of vim's quirks is that it doesn't show an empty line at the end of a file if the file ends with the newline character. This way, if the file doesn't end with a newline, the display is the same, ...
1
vote
1answer
26 views

How to print escaped characters with princ

When Emacs shows an integer value in the minibuffer, or as an output to IELM, it shows three representations of it -- octal, hex and as character: ELISP> 10 10 (#o12, #xa, ?\C-j) This is really ...
2
votes
0answers
310 views

Adding Purpose to Layout Of Emacs

The rigidity to which emacs adheres to its layout is annoying at times. How can i get a layout like this when I shift to the particular modes? +------------------+-----------+ | | ...
1
vote
0answers
31 views

Is it possible to add visual padding around a character?

Is it possible to add visual padding around a variable width character (generally too, I suppose)? I've looked into using propertize and buffer-display-table to accomplish this, but every solution ...
0
votes
0answers
23 views

Incorrect pixel count returned on retina display

I am running Emacs 26.3 on a 15" MacBook Pro with Retina display. While Emacs renders razor sharp on my screen, it does not seem to be aware of my correct pixel count. E.g., #+BEGIN_SRC emacs-lisp (...
1
vote
1answer
41 views

Connect open and close delimiters with a line

I wonder if emacs has something similar to this VSCode extension (Bracket Pair Colorizer 2) which does the following (screenshot below) which I find is a really helpful UI enhancement [ In the above ...
1
vote
2answers
66 views

Always show the last lines with a lower indentation than the first line that's visible in a window

I often find myself scrolling up in a code file to see which context I am in (class/method definition, yaml-key, etc). It would be super handy if I could somehow "freeze" the last lines of each ...
0
votes
1answer
51 views

Set Consistent line spacing, irrespective of bold or underlines etc

I current have set the current line number face to be bold: `(line-number-current-line ((,class (:foreground "#4F4F4F" :background "#00CC00" :bold t)))) When I move the cursor between lines, there ...
1
vote
1answer
39 views

Disable coloring of text in operations in emacs -nw, during operations like searching

I'm using gnu emacs as emacs -nw in a terminal window. Colored text is usually almost completely illegible for me. As recommended in this answer, I have done the following in an attempt to get rid of ...
0
votes
2answers
194 views

Remove dollar sign at beginning of line

In emacs when I scroll right and beginning of lines are truncated emacs inserts dollar sign same as it insert \ at the end of truncated line. I wish it would not insert these two signs. Can I disable ...
1
vote
1answer
84 views

Uneven line numbers with display-line-numbers

Emacs for some reason did not vacate equal spaces for each line number, So the lines were starting at different places which made it harder to keep track of alignment. It wasn't just the relative mode ...
2
votes
1answer
69 views

Automatically toggle external display profile

Apologies I know this will seem pedestrian -- please forgive me, I'm a newbie. I have low vision, so I'd like to automatically toggle different "display profiles" based on whether there is an external ...
1
vote
1answer
68 views

How to display a character reversed?

I know about compose-region and have used it for other purposes, but am trying to figure out how to display a character reversed. like transforming c to ↄ. Is this possible?
4
votes
1answer
609 views

prettify-symbols-mode and multi-character replacements?

With prettify-symbols-mode it is possible to replace strings by a character, or a character composition, e.g. ;; \lambda → λ (push '("\\lambda" . ?λ) prettify-symbols-alist) Optionally, it allows ...
8
votes
4answers
2k views

Show math formula in emacs when coding

Is it possible that emacs shows real formulas in the editor if they are written in Latex or similiar? I am asking because it would be much more readable if you are coding (in lets say python or C++) ...
7
votes
1answer
7k views

installing emacs: which x-toolkit?

I am installing Emacs 24.5.0, and I want to install it with X. I am on Fedora. the configuration script cannot find any x-toolkit. How do I find out which one is good for me, and in which folder do I ...
5
votes
1answer
1k views

How to change line-number gutter width using display-line-numbers mode?

I am using (global-display-line-numbers-mode 1) in my init.el file and everything is working as expected. The only problem is that I find the gutter width to be too wide and would prefer it to match ...
8
votes
4answers
1k views

Showing bytes as hexadecimal escapes rather than octal escapes

Short version: Can I make Emacs show \ff or \xff instead of \377? Long version: Suppose you open a file that is not entirely text and has some binary data (say a PostScript or PDF file). For example, ...
51
votes
2answers
8k views

OTF ligature support in Emacs

PragmataPro is a typeface that comes with a number of programming ligatures. My understanding is that these are OpenType face (OTF) ligatures. I am aware that Emacs supports programmatic replacement ...
2
votes
1answer
280 views

Replacing a string with symbols using font-lock?

I'm trying to make a font lock hook to replace strings of text for a mathmatical notation plugin. So I'm thinking " / " (note the spaces) will turn into " ÷ ", but "/" won't. (It's a package mainly ...
2
votes
1answer
87 views

Fastest way to draw pixels in Emacs

I'm currently working on a CHIP-8 emulator. This platform requires me to draw 64x32 black/white pixels, ideally at a speed between 30 and 60 frames per second. There's an extension to it that ...
1
vote
1answer
95 views

Has Emacs same tool as “screen” in Linux? [closed]

Linux Ubuntu, Emacs 26.1 I use tool "screen" in Linux. It's very comfortable. Has Emacs any some kind of tool?
2
votes
0answers
51 views

Is it possible to have buffers in layers?

In Emacs, can you get something like the following: 10 |int foo() { 11 | int a = bar(); 12 | 30 |int bar() { 13 | 31 | return 10; 14 | 32 |} 15 | // Bar.h // Foo.c The idea is that instead of ...
1
vote
1answer
55 views

Making Emacs show the last part of bash-command output

I use the Evil mode inside Emacs for doing a lot of my work. If I need to run a shell-command and see its output all I need to do is type in normal mode :!<bash command>. The window splits into ...
1
vote
0answers
156 views

Adjusting to screen resolution changes on GNU/Linux/ubuntu/gnome

I'm running emacs 26.1 on ubuntu 18.04 on a Dell laptop with a high-resolution display. It works very well in that configuration. It also works very well when the laptop is plugged into a lower-...
3
votes
0answers
88 views

Calculate current-column including display properties

I am trying to calculate the width of text within either a buffer or a string after it has been displayed, i.e. after taking into account the width of any display properties, such as embedded images, ...
4
votes
1answer
99 views

Width of string as if it were displayed

From the documentation of string-width string: This function returns the width in columns of the string string, if it were displayed in the current buffer and the selected window. For me this ...
4
votes
2answers
534 views

How can I find non-displayable unicode characters in a buffer?

I mean these: I'd like to remove them, so I'm looking for a function which can find all these characters in the buffer which cannot be displayed properly with the current font and therefore show up ...
8
votes
1answer
1k views

Org mode: is it possible to display ONLINE images?

Assuming I want to have an org buffer in which I can preview images from url which I don't want to store on my hard drive - is there a possibility to use a solution similar to org links and display ...
0
votes
2answers
195 views

How to troubleshoot and diagnose escaped-character display errors in Emacs shell?

I make much use of sub-shells within Emacs (initiated via M-x shell), and, because of this, I run into problems like the one illustrated1 below way too often: $ python -m pdb /tmp/hello_world.py [2] ...
2
votes
0answers
453 views

Can't display images in org-mode

I am on MacOS High Sierra, iterm2; I cannot find how to display images in org-mode. My term supports image display as imgcat works well within my shell. When I try to open the image link in emacs it ...
1
vote
1answer
206 views

Weird TeX syntax highlighting issue

I running Emacs 25 on Debian 9.0 stretch. The version is 25.1+1-4+deb9u1. I have a local copy of AUCTeX installed via Melpa. The relevant line in M-x list-packages is: auctex 11.88.3 ...
2
votes
1answer
60 views

Preventing syntax highlighting in the wrap-prefix

When Emacs wraps long lines, is there a way to prevent the wrap prefix from having syntax highlighting (font-lock) or any such special properties? Specifically, I have the following settings: ;; ...
4
votes
1answer
341 views

Show included text inline, like with org-display-inline-images

Goal In org-mode, you can include parts of other files during export with the keyword #+INCLUDE. I would like to be able to view the included files in-line in the current buffer (and maybe even edit ...
3
votes
3answers
696 views

Increase line-spacing on top

line-spacing adds space at the bottom. Here is what I mean - Image link. The docs say that the space is added below lines of graphic displays. I want the space to be added at the top. How do I do that?...
2
votes
0answers
152 views

Setting primary frame across displays on MacOS

I am working with 2 emacs frames, one on my laptop monitor (1) and the other on a larger external display (2). Whenever I switch between applications, e.g. between shell and Emacs, the Emacs cursor ...
1
vote
2answers
119 views

Longer flashing of search string during multi-file searches

When the cursor is in the *xref* buffer, following dired-do-find-regexp, the found string in the adjacent frame flashes, but too briefly, making it quite hard to see. A simple solution is to increase ...
0
votes
0answers
253 views

How to use Org pretty math expressions with clipboard?

Using org-toggle-pretty-entities, org-mode will convert text like ∫_ℝ f(x)dx = 1 ∑^N_{i=1} x_i to But if I want to copy that text to an outside application, it just shows up as it was originally ...
1
vote
1answer
104 views

How to put a right arrow above a Latin letter?

I want to write: ⃗E, I tried to C-x 8 <RET> COMBINING RIGHT ARROW ABOVE <RET> E it is displaying in Emacs like: I want to use Unicode (without Tex). EDIT in reply to Drew's comment: What ...
1
vote
1answer
111 views

Display devanagari characters

Running Emacs 25 on Kubuntu 17.10. I am able to enter text in devanagari script but it does not dispaly correctly in the editor. For instance, the text entered as: क का कि की कु कू के कै को कौ कं कः...
7
votes
1answer
878 views

How to set up Emacs to never split windows?

I want to try a new workflow where split windows only happen if I request them, otherwise Emacs simply changes windows. I tried putting this command in my init.el: (setq pop-up-windows nil) And it ...
2
votes
0answers
382 views

Issue with characters in buffers being displayed in wrong positions

I work with Emacs within Docker as my dev environment so that I can have clean dev environments per language or type or projects that I do e.g. PHP dev, NodeJS dev, Haskell dev etc with different ...
1
vote
0answers
24 views

Can I display a character as if rotated?

Suppose that I'd want to display a character as if rotated by 90 or 180 degrees in Emacs. Is there a way to go about that?