Questions tagged [display]

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

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16
votes
2answers
1k 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 ...
0
votes
2answers
48 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
24 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
49 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 ...
86
votes
8answers
27k 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 ...
1
vote
1answer
62 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?
3
votes
1answer
420 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
1k 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
6k 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 ...
3
votes
1answer
449 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 ...
3
votes
0answers
170 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? +------------------+-----------+ | | ...
2
votes
2answers
65 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 ...
7
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, ...
0
votes
0answers
40 views

Emacs stops displaying typing until focus moved out of and then back into editor window

I'm currently running RHEL 7.6 and whatever version of emacs comes with it (I don't have access to my system at the moment so can't provide the version number). Sometime in the last 2 weeks my sys ...
49
votes
2answers
6k 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
142 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
69 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
80 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
45 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
39 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
75 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-...
2
votes
0answers
67 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
93 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
312 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 ...
6
votes
1answer
589 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
142 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] ...
1
vote
0answers
286 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
165 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
57 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: ;; ...
2
votes
1answer
291 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
610 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
116 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
108 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
120 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
68 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: ...
1
vote
1answer
85 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
745 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
368 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
23 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?
3
votes
1answer
339 views

How can I eliminate the side effect of left margin?

I've set a left margin like this: (set-window-margins (get-buffer-window) 20 0) (let ((gutter-sep (concat (make-string (- (car (window-margins (get-buffer-window))) 2) ? ) "+"))) (propertize "." '...
2
votes
1answer
132 views

Stop Emacs from updating display

Sometimes a function will make the display blink and stutter, due do things happening in the background while the function is running (visiting other buffers etc). Does anyone know if there's a ...
1
vote
1answer
72 views

What is the mode or the command to selectively display selected region?

There seems to be a command to display only the text in the selected region, leaving the rest of the text hidden. What is the command?
3
votes
1answer
460 views

Prevent Emacs from resizing windows

After building a two column, 3 window layout with one tall column and two stacked equal sized shorter columns next to it, when I run commands like magit or ag that bring up a new buffer, often one of ...
1
vote
1answer
145 views

customize-face for display-graphic-p only

I run graphical GNU/Emacs on macOS and also emacs in Mac Terminal installed via Homebrew. I would like to customize the default face for only the graphical display. I used M-x customize-face default,...
2
votes
3answers
715 views

Hide mouse pointer while typing

Some programs, like many terminal emulators and gVim, hide the mouse pointer as soon as the keyboard is in use. Obviously, this is helpful when the mouse pointer happens to obscure some text behind it....
0
votes
0answers
147 views

Possible to modify 'whitespace-display-mappings' at runtime?

Making changes to whitespace-display-mappings while emacs runs doesn't seem to do anything. (setq whitespace-display-mappings '( (space-mark 32 [183] [46]) ; middle-dot (tab-mark 9 [9654 9] [...
6
votes
2answers
278 views

How to display whole words as a different symbol?

In this video (time-linked, only a few seconds) the word function is displayed as f, but can still be edited so the underlying text remains as-is. How can this be done in emacs? (using plugins or ...
5
votes
1answer
3k views

your emacs does not come with xwidget support… (Windows 10)

Just unzipped and started using Emacs 25.1, hoping to get a browser running in emacs. The instructions I found had me enter "M-x xwidget-webkit-browse-url" And then I'm asked to complete a command ...
12
votes
1answer
720 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. ...
1
vote
1answer
186 views

redraw-display when focused

I am using Emacs 25 in SUSE linux and when I switch to a workspace where Emacs is the front window almost none of the text is visible. I have to call redraw-display in order to get it refresh the ...