I'm using gdb-many-windows, which contains five windows to switch between. Is there a shortcut I can use to get to a specific window?
You probably already know that C-x o gets you to the next window. You can extend this to go to any arbitrary window with C-u <windowoffset> C-x o.
So, you can use C-u 2 C-x o to switch to the second window ahead of your current one.
This wraps around the window list (so in your case of 5 windows you could do C-u 4 c-x o to go back one.
You can also use negative numbers as well to go backwards.
Lastly, it takes a bit more setup, but Thomas's suggestion to use WindMove is very useful. It wasn't configured by default for me to any useful key binding. I add the following snippet to my (mac) .emacs file, whch lets me switch windows via control-arrow (you will need to reload .emacs by starting up or via 'M-x load-file')
(global-set-key (kbd "M-[ 5 d") 'windmove-left)
(global-set-key (kbd "M-[ 5 c") 'windmove-right)
(global-set-key (kbd "M-[ 5 a") 'windmove-up)
(global-set-key (kbd "M-[ 5 b") 'windmove-down)
Some people find WindMove more convenient than C-x o. It allows you to navigate between windows using Shift + arrow keys.
Possibly useful links:
http://www.emacswiki.org/emacs/WindowNumberingMode
http://www.emacswiki.org/emacs/NumberedWindows
Edit: If you decide to use WindowNumberingMode (that's what I use) you might find it useful to pin buffers to windows (so, for instance, Meta-1 switches to the buffer you expect it to switch to, not just the first window). One way of pinning is described in Pin Emacs buffers to windows (for cscope).
Window switching is so important in emacs, I have these settings.(Still feel these are not good enough)..
may help someone else..
(global-set-key "\M-t" 'other-window) ;; was transpose words
(global-set-key (kbd "C-x O") (lambda () (interactive) (other-window -1))) ;; back one
(global-set-key (kbd "C-x C-o") (lambda () (interactive) (other-window 2))) ;; forward t
I use switch-window.el.
You can choose a window by visual way with 'switch-window'.
Image of using switch-window
Related
A related question was asked here. But the answer is to get used to the new way autocomplete works in helm. I cannot get used to it, here's why.
Say, I want to open a file /home/user/work/f.txt. I do C-x C-f, it takes me to current dir, say /current/dir/. I hit Backspace and notice that autocomplete won't let me delete /. Ok, turn off autocomplete with C-Backspace. Then kill the line C-a C-k and start typing. Notice that autocomplete doesn't work, turn it back on C-Backspace. Normally I would type the part that I know is probably unique, e.g. /hom and hit Tab.
Not here. As soon as I type /ho, autocomplete resolves it to /home/, but since I type fast, I end up with /home/m, and continue typing now meaningless characters until I notice it. Chances are, by that time I got autocompleted into directories that I had no intent of going.
So I have to constantly watch what autocomplete is doing, rather than rely on what I type and only checking suggested completions when I hit Tab.
I also find myself descending into wrong directories due to occasional typo, and then having difficulty going up a level -- evil autocomplete won't let you fix the situation with a couple of Backspaces.
This interaction of autocomplete behavior and the removal of Tab functionality completely upsets my work, so much that I decided to ask this question. I am looking to either:
restore the old functionality
learn how to use autocomplete in a meaningful way, or
configure helm's C-x C-f to behave more like a linux command line
Please help.
Here are some ido tricks if you want to start using it.
Let me know if helm is better, perhaps I'll switch over.
I tried once shortly, but didn't like it.
Basic setup:
This will give you `ido-find-file on C-x C-f.
(ido-mode)
(setq ido-enable-flex-matching t)
Smex setup:
Install from https://github.com/nonsequitur/smex.
(require 'smex)
(global-set-key "\C-t" 'smex)
Switch buffers with ido:
(global-set-key
"η"
(lambda()(interactive)
(when (buffer-file-name)
(save-buffer))
(ido-switch-buffer)))
(global-set-key
(kbd "C-η")
(lambda()(interactive)
(let ((ido-default-buffer-method 'other-window))
(ido-switch-buffer))))
Tricks:
;; 1
(add-hook 'dired-mode-hook
(lambda()
(define-key dired-mode-map "j" 'ido-find-file)))
(add-hook
'ido-setup-hook
(lambda()
;; 2
(define-key ido-file-dir-completion-map "~"
(lambda ()(interactive)
(ido-set-current-directory "~/")
(setq ido-exit 'refresh)
(exit-minibuffer)))
;; 3
(define-key ido-buffer-completion-map "η" 'ido-next-match)
;; 4
(define-key ido-buffer-completion-map (kbd "C-p")
'ido-fallback-command)
;; 5
(define-key ido-completion-map (kbd "C-.") 'smex-find-function)
(define-key ido-completion-map (kbd "C-,") 'smex-describe-function)))
Quick open file from dired.
Move to home directory one key faster (i.e. ~ instead of ~/).
Cycle buffer candidates with the same key that shows the candidates (a la C-TAB in Firefox).
Useful to have a fall back when you want to create a file-less buffer (ido will try
select an existing buffer unless you fall back).
Useful to jump to function definition/documentation.
If you want TAB completion of directories and file names, map helm-execute-persistent-action to the TAB key:
(define-key helm-map (kbd "<tab>") 'helm-execute-persistent-action)
See also the answer to "How can I change emacs helm-find-file default action[...]".
When I add a label in emacs to a .tex file, I used to reload the file to get it to show up in RefTeX. i.e. C-c ) wouldn't have the new label unless I reloaded the file.
After some searching I found that C-u C-c ) will refresh RefTeX before trying to do the reference. This works as I would like, but I would like to use C-c r for this command instead of typing C-u C-c ) every time. How do I do this?
Thanks,
Jim
I don't use reftex but as far as I can understand you want just to define a binding:
(define-key reftex-mode-map (kbd "C-c r") 'reftex-reference)
Building on Oleg's answer:
Maybe it would be better to feed it the C-u argument already if that's what you are after:
(defun call-reftex-reference-directly ()
(interactive)
(let ((current-prefix-arg 4)) ;; emulate C-u
(call-interactively 'reftex-reference) ;; invoke reftex-reference
)
)
(define-key reftex-mode-map (kbd "C-c r") 'call-reftex-reference-directly)
Maybe try if this works for you?
You can type r in the label selection buffer to refresh it without reloading the file. The refresh is instantaneous (unless you have very large/very many linked files).
I'm trying to define the following two keyboard shortcuts to move between windows in Emacs:
C-shift-n: Move to the next window
C-shift-b: Move to the previous window
I thought the following will do it but it doesn't.
(defun select-next-window ()
"Switch to the next window"
(interactive)
(select-window (next-window)))
(defun select-previous-window ()
"Switch to the previous window"
(interactive)
(select-window (previous-window)))
(global-set-key (kbd "C-<S-n>") 'select-next-window)
(global-set-key (kbd "C-<S-p>") 'select-previous-window)
The problem seems to be with the last two lines that define the actual keyboard shortcuts to the functions that switch the windows (if I use simpler keyboard shortcuts instead of Control-Shift-* it works).
So, how do I use kbd to define Control-Shift-n and Control-Shift-p?
Assuming you never use caps lock, here's a super simple solution:
(global-set-key (kbd "C-N") 'select-next-window)
or
(global-set-key (kbd "C-<S-N>") 'select-next-window)
The problem is that when you hit shift you're sending capital N.
Is there a way to zoom in and out (dynamically change the font size, quite smoothly) on emacs?
Try C-x C-+ and C-x C--; that is, Control-x Control-Minus/Control-Plus.
After one combination (C-x C-+ or C-x C--), successives + or - increase or decrease the text scale without typing C-x C- again.
Addition by sawa
I looked up the function that was assigned to the keys mentioned, and found out that they are text-scale-increase and text-scale-decrease. I added the following to my configuration file so that I can do Ctrl+Scroll to zoom in/out. It is useful.
(global-set-key [C-mouse-4] 'text-scale-increase)
(global-set-key [C-mouse-5] 'text-scale-decrease)
The -very nice- answer of user173973 is binding the functions to non-generic mouse events. That is to say that for example on my windows system, the binding command is not valid.
To use it on windows (or probably anywhere) you can use these generic bindings :
(global-set-key [C-mouse-wheel-up-event] 'text-scale-increase)
(global-set-key [C-mouse-wheel-down-event] 'text-scale-decrease)
This config worked for me:
(global-set-key [C-wheel-up] 'text-scale-increase)
(global-set-key [C-wheel-down] 'text-scale-decrease)
In addition to sawa's accepted response, I prefer to use the keyboard exclusively. Here are some additions to my init.el file that meet that preference similarly to the short cuts found on Windows/MacOS desktops:
;; enable shortcuts (both keyboard and mouse) for zoom-in/zoom-out
(global-set-key [C-mouse-4] 'text-scale-increase)
(global-set-key [C-mouse-5] 'text-scale-decrease)
(global-set-key [?\C-\+] 'text-scale-increase)
(global-set-key [?\C-\-] 'text-scale-decrease)
All windows
You'll often want to change your font size because you're showing something to others. Then you likely want all windows to zoom in (including mode-line). For this, default-text-scale is great.
I bind it as such:
(key-seq-define-global "q-" 'default-text-scale-decrease)
(key-seq-define-global "q+" 'default-text-scale-increase)
(global-set-key (kbd "C-M-_") 'default-text-scale-decrease)
(global-set-key (kbd "C-M-+") 'default-text-scale-increase)
Quick single window, and back
For a really quick heavy (16x) zoom-in, you can use: C-u C-u C-x C-+
For going to single-window mode, say for a org presentation: C-x 1
Then you can undo the single-window and return to whatever layout you had before with winner-undo: C-c <left>
Whole desktop
Relatedly, for sharing over a video call, it might be easiest to just change (lower) your desktop resolution. On linux, I pop up arandr for this before starting a sharing session.
I've tried various version to no avail:
(global-set-key (kbd "C-<space>") 'tempo-complete-tag)
(global-set-key [C-space] 'tempo-complete-tag)
I'm using CUA mode and running Emacs on Ubuntu, version: GNU Emacs 23.1.50.1 (x86_64-pc-linux-gnu, GTK+ Version 2.18.0)
of 2009-09-27 on crested, modified by Debian
When I run tempo-complete-tag manually it tells me it is bound to C-space but C-space still runs cua-set-mark (or if CUA is disable, set-mark-command).
How can I rebind the C-space shortcut in Emacs to a command I decide?
C-h k (key) will tell you how Emacs refers to a given key (which is "C-SPC" in this instance). (global-set-key (kbd "C-SPC") 'tempo-complete-tag) will do what you want.
I always use the (kbd) function for key-bindings, as it allows you to refer to the key the same way it is typically written everywhere else.
Do keep in mind that C-SPC is a standard set-mark-command binding! Personally I'd pick something different :)
Also keep in mind that "global-set-key" will only do what you want, if your mode doesn't override it. I'm too lazy to load tempo to see if it does indeed override C-SPC, but it might well do so, in which case, you want to put this in your .emacs:
(add-hook 'tempo-mode-hook
(lambda ()
(local-set-key (kbd "C-SPC") 'tempo-complete-tag)
))
Alternative syntax for key binding is via vector:
(global-set-key [?\M-\ ] 'cycle-spacing)
(global-set-key [?\C-\ ] 'tempo-complete-tag)