I wan to change the width of emacs which can fit the width of LCD.
In addition to the details in the thread that #lawlist posted in his comment, the simplest way to get fullwidth is to set the frame parameter accordingly. The following will do it:
(set-frame-parameter (selected-frame) 'fullscreen 'fullwidth)
However, to have this happen automatically at startup, you should set the parameter in your initial-frame-alist somewhere in your .emacs file:
(setq initial-frame-alist
'((fullscreen . fullwidth)))
Beside elisp methods given in thread mentioned by #lawlist in the comment you can also set emacs geometry in ~/.Xdefaults file, eg.:
Emacs.geometry: 100x29+-2+-2
These four numbers represent width, high and position of upper left corner (optional)
Now just run xrdb ~/.Xdefaults and from now on emacs will always start with this geometry.
The good thing about .Xdefaults method is that you can set in one place parameters (not only geometry) for different programs but using similar syntax, for example
! geometry
Emacs.geometry: 100x29
xpdf.geometry: 80x25
xterm*geometry: 70x20
! foreground color
Emacs*foreground: white
xpdf*foreground: black
xterm*foreground: light grey
! background
Emacs*background: #445566
xpdf*background: white
xterm*background: #262729
! other stuff
xterm*toolBar: true
xpdf*urlCommand: /usr/bin/firefox %s
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I am using Emacs -nw in Ubuntu. I like to turn on linum-mode to see line numbers on the left margin, but the numbers are put right next to my code.
I would love it if there could be some 'padding', like 1-character long, between line number and code. sorry I can't post an image since they are asking for 10 reputation, which I dont have:(
How can I do this?
You can use the variable linum-format to achieve this. Its value can either be a format string or a function which is called with line number as an argument. emacswiki has a couple of example of setting it to a format string
1) The following adds a space after the line-number
(setq linum-format "%d ")
2) You can also add a solid line separator
(setq linum-format "%4d \u2502 ")
I guess the above are sufficient for your needs. You can also find an example of using a function as linum-format here. Add whichever format suits your needs to your init file
In addition to the other answer(s) in this thread, options for putting distance between the line numbers and the text include, but are not limited to, adjusting the fringe width (and also set the color if you so choose).
The fringe is like a vertical ruler that runs from the top to the bottom of the buffer -- the left fringe is sandwiched between the line numbers and the text. It can be invisible if it is the same color as the default background of the user, or it can be a different color.
(setq-default left-fringe-width 10)
(setq-default right-fringe-width 0)
(set-face-attribute 'fringe nil :background "black")
How to change the color of some outer or inner border? Whenever I change border-color of the frame, I don't see any changes and it is not allowing me to change the border width.
So far, what did work was
(set-frame-parameter (selected-frame) 'internal-border-width 15)
which adds some frame around the buffer.
But I don't know how to change the inner color. Does anyone know how to have a nice border/frame around the working space?
Any method goes.
EDIT: Added what sds accomplished:
I would like actually to have area around it to have a different color, so outside of the red.
I found an example (read: this is what I was after all along) of a frame I would like to accomplish.
It does appear that you cannot change the border width of an existing frame, but you can create a new frame with the border width you want:
(frame-parameter (make-frame '((border-width . 10))) 'border-width)
==> 10
However, the appearance of the new frame does not differ (as far as I can tell on ubuntu) from that of all the other frames (where border-width is 0);
which, I guess, is not all that surprising given that the window manager may not pay attention to [the border-width] you specify.
The more relevant question, I think, is what are you really trying to do?
Do you want Emacs windows (known as frames in the Emacs world) to differ visually from all the other windows?
If this is what you are after, then you have to realize that window decorations are the domain of the window manager (as mentioned above), and applications (like Emacs) can only affect those using "hints", and window managers are free to ignore them.
However, you can change the parameters of the fringe face:
(set-face-background 'fringe "red")
which should make the Emacs frame appearance very distinct.
I think you are specifying the fringe. You can set the fringe colour with this in your colour-theme function if you are using one.
(defun color-theme-whatever ()
"A color theme"
(color-theme-install
'(color-theme-whatever
((fringe ((t (:background "#111" :foreground "#444"))))))))
I'm trying to write a function that does something based on Emacs's current window width. The problem is, Emacs is confused about how wide a column is. It seems to be basing its calculations on the original font size and not my custom set one. Here is a screenshot to illustrate:
It seems to work correctly when I remove my custom font setting, so I think it must be not updating how big it thinks a column is after switching to a new font.
Here's the relevant part of my visual config:
(setq default-frame-alist
'(
(font . "-apple-Ubuntu_Mono-medium-normal-normal-*-17-*-*-*-p-0-iso10646-1")
(width . 130)
(height . 45)))
(obviously the frame was resized from my defaults in the picture, but this is where my font gets set so it seems relevant)
And here's the function I used to determine the computed current width:
(defun get-window-size ()
(interactive)
(message "The width is %d." (window-body-width)))
According to the docs, the window-body-width function should return just the editing area, so any discrepancy between column number and total frame size should be eliminated...
How do I make Emacs update its understanding of column width after changing font?
The "line&column" position indicated is based on the number of characters (tho some characters can count as 2 columns or more, TAB being a common example) rather than based on their visual display size. Different lines can use differently sized fonts, so different lines will reach the right margin at different "columns". In contrast the window sizes are counted in "number of standard-size char-cells" where the size of that standard char-cell depends on the default face (i.e. the font you specified in your default-frame-alist) used for that frame.
In your screenshot, I see nothing that obviously explains the discrepency, tho: you seem to be using a normal monospaced font and all the text uses the same font, and you don't seem to be using something like text-scale-increase, so I'm not sure exactly why you're seeing what you're seeing.
Actually, I want to generate a XPM-format image and draw it on the mode line using display attribute of a text string. However, the height of mode line turns to be different as the result of different fontset.
That means I need to know the height of the emacs mode line and use it to generate the corresponding size of the XPM-format image, so that the generated image can fill the mode line totally.
My question is just showing as the title, how can i know the actually (finally rendered) height of the mode line after applying a specific fontset?
I have searched the emacs documentation via apropos, what I found now is:
I can use the font-info function to get the font height in current frame. I guess maybe I can get what I want based on this, although I am unlucky until now.
And, I cannot find any function related a the mode line height.
Try
(- (elt (window-pixel-edges) 3)
(elt (window-inside-pixel-edges) 3))
I don't know if this can easily be done with Emacs (read below for my hack in case there's no easy way to do this) so...
How can I add one pixel of vertical-spacing between each line under Emacs?
I know that screen real estate is precious but I'm using a "custom" font (ProggyFont) and, under IntelliJ IDEA, I can modify the vertical spacing to something that I like.
Under Emacs, however, I find the text hard to read because the pixels from one line are too close from the pixel of another line, so I'd like to add one "one pixel" empty vertical line between every line. Can this be done simply?
If there's no "simple way", how do I take a "x by y" bitmap font and turn it into a "x by (y+1)" bitmap font? I don't mind using a font editor: been there, done that. But I don't know exactly everything that would be involved.
Check out the line-spacing variable, e.g.
(setq line-spacing 0.2)
From the docs:
Additional space to put between lines when displaying a buffer.
The space is measured in pixels, and put below lines on window systems.
If value is a floating point number, it specifies the spacing relative
to the default frame line height. A value of nil means add no extra space.