From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Eric Abrahamsen Newsgroups: gmane.emacs.help Subject: narrow color bar using display properties Date: Tue, 05 Mar 2013 14:26:45 +0800 Message-ID: <87lia29xay.fsf@ericabrahamsen.net> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1362464503 15091 80.91.229.3 (5 Mar 2013 06:21:43 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 5 Mar 2013 06:21:43 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Mar 05 07:22:07 2013 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1UClGH-000716-V6 for geh-help-gnu-emacs@m.gmane.org; Tue, 05 Mar 2013 07:22:06 +0100 Original-Received: from localhost ([::1]:35657 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UClFw-0001jA-Dk for geh-help-gnu-emacs@m.gmane.org; Tue, 05 Mar 2013 01:21:44 -0500 Original-Received: from eggs.gnu.org ([208.118.235.92]:54454) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UClFl-0001iv-Fl for help-gnu-emacs@gnu.org; Tue, 05 Mar 2013 01:21:35 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UClFh-0000fn-Jj for help-gnu-emacs@gnu.org; Tue, 05 Mar 2013 01:21:33 -0500 Original-Received: from plane.gmane.org ([80.91.229.3]:33157) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UClFh-0000fi-DQ for help-gnu-emacs@gnu.org; Tue, 05 Mar 2013 01:21:29 -0500 Original-Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1UClFw-0006nM-9A for help-gnu-emacs@gnu.org; Tue, 05 Mar 2013 07:21:44 +0100 Original-Received: from 114.250.129.255 ([114.250.129.255]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 05 Mar 2013 07:21:44 +0100 Original-Received: from eric by 114.250.129.255 with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Tue, 05 Mar 2013 07:21:44 +0100 X-Injected-Via-Gmane: http://gmane.org/ Original-Lines: 17 Original-X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 114.250.129.255 User-Agent: Gnus/5.130006 (Ma Gnus v0.6) Emacs/24.2 (gnu/linux) Cancel-Lock: sha1:vGI7Y6rVRuzHKN9QHFUrqaxKZQA= X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 80.91.229.3 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:89358 Archived-At: I've got my cursor-type set to a colored bar, and looking at it today I thought it would be very nice if I could create a similar effect with code: presumably using text properties (I'm guessing the display property) to lay a bar of color (either background color or a transparent foreground color) over existing text, only a couple of pixels wide and aligned left, without otherwise disturbing the placement of the text beneath. Right now the most promising approach seems to be the image display property (presumably I could use the :data specification just to draw a block of colored pixels), except that if I understand it correctly that will replace the underlying text, not add to it. Does anyone have advice on achieving this? Thanks, Eric