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Questions tagged [display]

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

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1answer
50 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
41 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
47 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?
1
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1answer
18 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
62 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
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0answers
35 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 ...
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1answer
28 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
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0answers
39 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
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0answers
47 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
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1answer
74 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
129 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
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1answer
300 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 ...
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0answers
231 views

Remove blank space between line numbers and window border

When using the new display-line-numbers-mode on Emacs 26.1, there's some leftover space between the line numbers, and the left window border: The screenshot above shows Emacs after being started ...
1
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0answers
141 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 ...
2
votes
1answer
47 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: ;; ...
1
vote
1answer
111 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
150 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 ...
2
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0answers
73 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 ...
0
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0answers
87 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
48 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
62 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...
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0answers
22 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?
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2answers
84 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 ...
2
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1answer
238 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 ...
3
votes
1answer
217 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 "." '...
1
vote
1answer
98 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
33 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?
2
votes
1answer
300 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
98 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,...
1
vote
3answers
451 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....
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2answers
92 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] ...
0
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0answers
88 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] [...
7
votes
4answers
861 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, ...
7
votes
2answers
246 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 ...
1
vote
1answer
116 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 ...
0
votes
1answer
65 views

How do I display dashs as minus signs outside comments and strings?

In source code, I'd like to display “-” as “−”. In the font I use, the dash is very short and doesn't match the “+” at all. This is only to improve visual appearance. The character in the file must ...
3
votes
2answers
377 views

Change fill-column-indicator rule color immediately

How can I change the color of the fill-column-indicator and have the changes visible immediately? (defun my:change-fci-color (color) (setq fci-rule-color color) (fci-redraw-frame)) The previous ...
4
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 ...
1
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0answers
44 views

Increase spacing between physical lines only

How can I add spacing where there are linebreaks in the file, but not where a line is word-wrapped? This would be very useful for reading log files with long lines. Here's a mockup of what I'm after: ...
0
votes
1answer
306 views

utf-8 bullets displaying differently on different computers, same platform

I have two seemingly identical computers that display org-bullet utf-8 bullets differently within emacs. Both computers use the same OS (windows 7) and the same emacs version (24.5) with no ...
3
votes
1answer
309 views

Display max line in bottom line (nox) (aka mode-line)

How can I display the max line of a file in the bar at the bottom? So, how could it say "L1/L1300" instead of just "Top L1", if the respective happens to have 1300 lines?
3
votes
1answer
194 views

Change which buffers are in which windows?

I have 3 windows opened and I want to change which buffers they display. For example: when programming in C, I want to have the C code on the left, and the right side split into two windows showing ...
2
votes
2answers
392 views

Detect/specify the monitor a frame is on?

Q: how do I detect/specify the monitor a frame is on? I'm working off of a laptop that has an external monitor connected to it. I therefore have two monitors (call them INTERNAL and EXTERNAL). On ...
2
votes
1answer
252 views

X11 GUI low quality display when using server

Why is Emacs X11's display such bad quality, and how do I fix it? When I use Emacs Cocoa locally, I get a good visuals. But when I use the X11 forwarding on my department's server, the quality is ...
3
votes
1answer
1k views

Getting the full list of colors available in Emacs

When I run list-colors-display I get the following: which I think is a very small subset of colors that my Emacs supports, isn't it? For example, I know Emacs supports other colors (gray20, blue15, ...
0
votes
1answer
108 views

Draw a line between the header line and the text area

One of my modes uses the header line to display a progress bar/document summary, concatenating spaces with varying background colors and widths (using the display attribute). To clarify the ...
1
vote
1answer
600 views

Gotham theme with 256 colors

When I use, gotham-theme, it says that you can get the 256 colors by (setq gotham-tty-extended-palette t) but I do not feel any difference between activating one and the other with only 16 colors; I ...
4
votes
1answer
140 views

Everytime I open emacs with -nw my file is prepended with 0;276;0c. My screen realestate is also being cut in half

How can I reset the default behavior of no prepending (but still being able to use -nw) and not having the bottom half of my terminal be black space. Having emacs test.py -nw -Q doesn't solve the ...
2
votes
0answers
36 views

How can I export compositions with html-fontify?

Prettify-symbols-mode is a very nice way to make source code more readable, especially in math-heavy languages. Unfortunately, exporting to HTML with html-fontify-buffer doesn't respect ...
3
votes
3answers
522 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?...