Emacs 23 can view PDF files inside the editor which is great. However it also shows a welcome page, for every PDF page, like this:
How can I remove this welcome page? I understand Emacs is doing some processing for the PDF page, and it probably does not want the user to try to open the file over and over again while it is doing that, but I'd prefer and hourglass instead of a whole page.
I tried setting doc-view-conversion-refresh-interval to nil BTW, it didnt work.
I am on GNU Emacs 23.2.1 (i686-pc-linux-gnu, GTK+ Version 2.24.4).
Thanks,
WRT your answer, it sounds like you either edited the original file, or made a replacement copy of that entire library.
The first way will be lost when you update Emacs. The second way means you won't get any improvements to that library when you update Emacs. Neither is a very good option.
Instead you can tell Emacs that if and when it loads the original library, it should re-define that one function at that time.
This minimises the potential problems associated with upgrades, and does not require you to load the library unconditionally in your .emacs (which would increase your start-up time unnecessarily for sessions where you didn't load any PDFs).
(eval-after-load 'doc-view
'(defun doc-view-buffer-message ()
;; your definition here
))
I think you need to press C-c C-c
I found doc-view.el source for Emacs 23, and I removed the message from doc-view-buffer-message function. So now when PDF is loaded an empty page is shown which is less confusing, welcome page made it look like the PDF was loaded.
After the changes I did byte-compile-file on the el file, and at the end of my .emacs I load this overriding the original doc-view.
Related
I'm looking for a functionality like:
the TODO tool window of IntelliJ IDEA (see https://www.jetbrains.com/help/idea/todo-example.html) or
the Tasks list of Eclipse (see https://dzone.com/articles/to-do-lists-with-eclipse-tasks-view).
And I'd like that window to be opened automatically (if not empty) when opening any file or, at least, to have a message in the echo area stating that there are some TODO/FIXME items in the file I'm currently opening.
So far, I did not find any matching package, only things (like fic-ext-mode) that would highlight TODO and FIXME in comments for common programming languages, but no more.
Is there something else, closer to what I'm looking for? I'm certainly not the first one looking for such a feature in our favorite editor ;-)
hl-todo has hl-todo-occur, which opens an occur buffer of all the keywords it's configured to highlight in the current buffer. You should be able to add it to a major mode hook like so:
(add-hook 'prog-mode-hook #'hl-todo-occur)
But this doesn't work. I think it's because hl-todo-mode is activated in prog-mode-hook, and it isn't ready yet. I don't have time to track this down right now.
If you use magit, I just saw a new package magit-todos. I haven't tried it, but it looks pretty nice.
Not aware of an existing module. It would be nice to have one. If you can write, use elisp and M-x Highlight-regexp and M-x occur and then write a hook to open occur window when you open a file. May be a macro will do for this too. You can do more with elisp, such as make occur window renamed as TODO-window and parse the entries to convert into org-mode table to sort entries while preserving the clicking etc.
When using tools like Org-mode and Magit the mode will sometimes show help menus. For instance, org-mode export will show a nice menu that accept single keys and then executes some command. In Magit, when looking at the status view it will accept tabs to expand the staged and commit areas.
These areas, for both Git and Org, are nicely placed to take up some portion of the emacs frame that is mostly convenient. How does emacs do choose this?
Additionally, these views are read-only, up until the user presses tab in the case of Magit and the status view. Is there a best practice when creating these views which control editing, but allows the mode to edit the file and present alternative text?
Perhaps the answer is take a look at these function A, B, and C. Which is fine, I'm just learning and experimenting on my own.
Magit in particular is not the simplest introduction to popup buffers in Emacs, but it certainly is sophisticated and a good read. Find magit-popup.el on your machine, for example M-x find-function RET magit-popup-mode-setup. To me, that function looks like a good candidate to start reading that file. You can see the macro magit-define-popup in use for example in magit-push-popup in the file magit-remote.el
In the end, it boils down to opening a new buffer in a new window and give it a dedicated major mode which has all the key-bindings.
Another good candidate is the family of temp-buffer-* functions.
Hope, that gives some pointers to start reading.
An easy way to show menus/help screens à la Magit and org-mode is with Hydras:
http://wikemacs.org/wiki/Discoverability#Hydra
https://github.com/abo-abo/hydra/
https://github.com/abo-abo/hydra/wiki
It's a short elisp method to write and it will give you a menu like org-mode. For example:
(defhydra hydra-zoom (global-map "<f2>")
"zoom"
("g" text-scale-increase "in")
("l" text-scale-decrease "out"))
ps: it's not what org-mode and magit use. Magit's system wasn't re-usable until recently and I don't know how it compares with Hydra. A nice feature of Hydras is that you can tell it to not disappear after a keypress, so than you can press many keys in a row.
I saw the feature shown and described below in Sublime Text and was curious to know how does one achieve it in Emacs?
A brief description of the feature:
Have a condensed view of the entire code/text file currently opened and highlight the region, in the very same condensed view, which is currently being viewed. Clicking on any part of the condensed view would bring that part in focus.
Although I know, almost certainly, that I would rarely use this feature since it would be, in my view, a estate hog, considering the fact that I have even had my scroll-mode disabled, but still I am curious to know how it can be done in Emacs.
And yeah I went through(skimmed) Sublime's feature list to find the name of the feature, so that I could then try to find it for Emacs, but couldn't. Therefore, another question: What's this feature called?
Original source of the image above.
There is MiniMap package. From EmacsWiki:
Put minimap.el in your load path.
(require 'minimap)
Use M-x minimap-create in a buffer you’re currently editing.
Use M-x minimap-kill to kill the minimap.
Use M-x customize-groupRETminimap RET to adapt minimap to your needs.
In the terminal when I try to use emacs the colors are not good, most of the times I can't properly see the text.
In vim I know I can change the colorscheme with :colo <colorscheme_name>
Is there something similar in emacs?
A tutorial on the proper steps to change the colors would be appreciated.
I'm not sure of tutorial, but off top of my head, what you probably will want to do is: M-x customize then navigate to the section called "Faces" - you'll get a bunch of settings related to the color scheme and other font-related settings.
But Emacs has tons of customizations related to how text is displayed. I'm using this http://www.nongnu.org/color-theme/ but you can find a lot of info here: http://emacswiki.org/emacs/ColorTheme (emacswiki is basically the resource to be consulted first when you have any Emacs-related problem).
Obviously, you can do that in your .emacs file by adding different settings, but I'd suggest to use what's generated by the changed settings first, see how it works and then add on top of that yourself (once you modify settings from the customization buffer, it will save the changes into .emacs file - you can then open it and see what exactly did it do).
M-x load-theme
then use arrows to select a theme.
Adding here for easy reference ( #deong shared this answer via comment under the accepted answer).
I'm pretty old school sometimes and I like working with Emacs in my terminal. (I work with IDEs all the time. But sometimes, when in the privacy of my own home, I just like a text editor a terminal and a beer)
However, the default Emacs that comes with OS X does not seem to highlight the comments in font-lock-mode. I've seen this behavior in both Python and C mode.
I've already searched some forums and I found one post where the person was having the same problem as me:
http://forums.macosxhints.com/showthread.php?p=512361
Is is there any way to fix this problem?
I had this exact same problem. The solution is to change the color used for the comment face as follows:
(set-face-foreground 'font-lock-comment-face "red")
Or, if you only want to do this for certain modes:
;;; Only do this for the common C mode (C, C++, Objective-C)
(add-hook 'c-mode-common-hook #'(lambda () (set-face-foreground 'font-lock-comment-face "red")))
For more information on faces, see http://www.gnu.org/software/emacs/manual/html_node/emacs/Faces.html.
I'm not sure exactly how to fix it, but I'm fairly certain there's something you can put in the .emacs file. In fact, I think I've done that before. I'll look for my file and let you know what I can find.
I'll try and get you my .emacs file when I get home from work tonight.
[edit] I've looked and looked, and can't find a .emacs file on either system that I use, and on my OS X install (Leopard default), it looks like it does it correctly by default. I did some research here, and it looks like the default installations no longer use .emacs files, because there's folks like me that mess around with them and break things, and they got tired of having to help us fix it. But, there is a set of menus that will let you tweak things. Start by typing "M-x customize RET", where M is the meta character (on my OSX install, this is the esc key. Don't hold it down, just type it like a regular character. That'll get you into a menu of stuff you can change. I didn't poke around too much, so I'm not sure where in the menu you'll find what you're looking for. Sorry I couldn't be more help.
In my experience this is usually related to a unpaired quote (single-, double-, or otherwise) somewhere in an existing comment.
Hunt those occurences down and eradicate them in your source code (or if you are more ambitious, see if you can update the fontlock code in your major modes' emacs source code)
When I have encountered this in editting Perl in emacs, I often switch major modes to cperl-mode as it typically handles parsing the perl better than the default perl-mode.