I've just installed Fedora 23 and I've encountered a problem I've never seen in many years of using Emacs.
Emacs won't allow me to highlight text. I noticed it first when trying to click-and-drag with the mouse, but then I tested it by setting the mark and moving the cursor - no highlighting.
The <drag-mouse-1> command description indicates that dragging should set a region and highlight text. Transient-mark-mode is enabled, and I'm running Emacs in its own (non-terminal) window. I can't find any other information about this. Any ideas?
Edit: On closer inspection, I can act on the region that I try to highlight as normal (cutting, copying, etc.). It seems like Emacs IS highlighting, it's just not SHOWING the highlighting. A less serious problem, but one I'd still like to fix and don't know how.
Sounds like the highlight color is the same as or similar to your background color. Try M-x list-faces-display and look at face region. That also provides you an entry point for changing any of the faces displayed - just click the face name to open Customize for the face.
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When I first installed the solarized-theme and set the recommended values for variables here. There was the great effect of marked text being vertically longer than my cursor which made it easier to see where the cursor was. I'm not sure if it was the effect of setting
(setq x-underline-at-descent-line t)
but after customizing the colors of the theme a bit more, I lost the effect of what I saw before anymore (can't seem to revert to it after reinstalling the theme either). So the effect I meant was marking a region (highlighting text) would highlight from the Capline down to the Baseline.
Sometimes I get it when I just start up emacs. Here is one of the lucky times I was about to get it.
Here you can see that the marked region is going from the topline to bottomline.
EDIT: After accidentally getting it to work again. I think I only get this desired effect on org headers on the 1st/top level. How can I get this effect everywhere?
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.
I'm have reinstalled my emacs and now I'm using emacs v24.3.50 with auto-complete v1.4 and popup.el v0.5. Unfortunately the popup "menu" of auto-complete is kinda broken (see attached screenshot).
The different items are not aligned along a commong vertical line [ignore the black overlay, that stems from CEDET and is probably meant to be placed on the right side next to the popup menu; the problem remains when disabling CEDET, so it is not related).
From what I can tell it looks like the extent of this "shift" between lines depends on how much the length of the strings differs. Also, when selecting a different suggestion using the arrow keys the horizontal shift of the lines changes a little (~few pixels) each time the mark is moved one line up/down.
I have uploaded the part of my .emacs.d/init.el that is used for configuring auto-complete here.
Any suggestions on how to fix this?
It appears you are using a proportional font, which breaks the calculation of the left edge of the overlay.
You can try changing the way auto-complete computes the column:
(setq popup-use-optimized-column-computation nil)
You can also change to a fixed width font.
Note that some other completion systems for Emacs can use tooltips instead of overlays, which would avoid this problem.
I have to use xterm-mouse-mode to support mouse when using emacs via ssh, but i found it will not highlight the whole word when i double click on a character of the word. Instead it only highlight the character under the mouse. How can i fix it?
C-h f xterm-mouse-mode says:
...works for simple uses of the mouse. Basically, only non-modified
single clicks are supported. When turned on, the normal xterm...
So, I'm afraid double clicks are known not to work (they are seen by Emacs as 2 normal clicks).
EDIT 2014-Aug-29: This limitation has been recently lifted in Emacs's trunk (i.e. not in the upcoming 24.4 but in the next version instead).
Highlighting does not work in the non-windowed version of emacs (emacs run in a terminal window). It's hard to tell whether things are being highlighted which is why I recommend using C-space (Mark-set) to highlight things instead as it gives you a little more control rather than enabling xterm-mouse-mode as sometimes you may not double click correctly.
I am running Emacs 23.3 on Windows XP. When Emacs is started, the mode line will assume one of these two appearances at random. Needless to say, I prefer the first one. How do I figure out what is going on and how do I make the first one stick?
The images don't show it, but the first one has a GUI type appearance. If I hover over the various bits of text with a mouse, e.g. Help then the text Help turns into a button with shadows etc.
The black mode line appears to be a text mode widget. The only thing that the mouse will change on it is the highlighting.
PS: Thanks JSON!
I vaguely remember this happening years ago depending on whether or not I started Emacs from Remote Desktop. Perhaps there's an issue with color depth?
See if anything has changed your settings to
(set-face-background 'modeline "#000000")
(set-face-foreground 'modeline "#FFFFFF")
(EDIT: Color codes corrected) in any of your .el files.