From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Lennart Borgman Newsgroups: gmane.emacs.devel Subject: Re: redisplay system of emacs Date: Thu, 28 Jan 2010 13:53:18 +0100 Message-ID: References: <27349166.post@talk.nabble.com> <83bpge50k5.fsf@gnu.org> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1264683357 7761 80.91.229.12 (28 Jan 2010 12:55:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Thu, 28 Jan 2010 12:55:57 +0000 (UTC) Cc: alinsoar@voila.fr, Emacs-devel@gnu.org To: Eli Zaretskii Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Thu Jan 28 13:55:54 2010 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1NaTub-0003BZ-Qn for ged-emacs-devel@m.gmane.org; Thu, 28 Jan 2010 13:55:54 +0100 Original-Received: from localhost ([127.0.0.1]:50521 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NaTub-0002Av-4U for ged-emacs-devel@m.gmane.org; Thu, 28 Jan 2010 07:55:53 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NaTt9-0001WK-74 for emacs-devel@gnu.org; Thu, 28 Jan 2010 07:54:23 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NaTt4-0001Tc-0X for Emacs-devel@gnu.org; Thu, 28 Jan 2010 07:54:22 -0500 Original-Received: from [199.232.76.173] (port=46705 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NaTt3-0001T6-3S for Emacs-devel@gnu.org; Thu, 28 Jan 2010 07:54:17 -0500 Original-Received: from mx20.gnu.org ([199.232.41.8]:37222) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1NaTsq-00011t-Pl; Thu, 28 Jan 2010 07:54:05 -0500 Original-Received: from mail-fx0-f216.google.com ([209.85.220.216]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NaTsn-0007By-O3; Thu, 28 Jan 2010 07:54:02 -0500 Original-Received: by fxm8 with SMTP id 8so981967fxm.26 for ; Thu, 28 Jan 2010 04:53:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :from:date:message-id:subject:to:cc:content-type :content-transfer-encoding; bh=tqUT2wHYwqwAUcU2qwoyIh6YA30rfQnCSOxF0V1aWLQ=; b=RNrcn4ROsOKR2KAD6vRNBNnt3Bqjx5qK/NUHG+9W8+GQtuTUWXAe9GWrSn6KE8cinH hRc9uXwSxJtctI7oYBn8W2tGwdp7iPz0JvFq1aXJt00KEEU7XqRf+LewI07oEFZvC/Mn aofzhv45yK5T3xYZCabFOaCUEc1ds1kP0IqLo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type:content-transfer-encoding; b=VdM312PqRk200Vctf6nHTEgUNHI3w70Gf34cmCs+BY1ScnIkmywh4mEwk8QIGIZEsU Pq9e0zicp3tCcOv8uEAKQjzRIS9e2/is7YJjtyKxW76IPPeHIKffp2VQzA5vxF6v0Em7 93NQ+YQCJMmXzV03qM0vI+U/vZ0UuaH5k9k4A= Original-Received: by 10.239.184.82 with SMTP id x18mr1325883hbg.67.1264683218123; Thu, 28 Jan 2010 04:53:38 -0800 (PST) In-Reply-To: X-detected-operating-system: by mx20.gnu.org: GNU/Linux 2.6 (newer, 2) X-detected-operating-system: by monty-python.gnu.org: GNU/Linux 2.6, seldom 2.4 (older, 4) X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:120567 Archived-At: On Thu, Jan 28, 2010 at 1:43 PM, Eli Zaretskii wrote: >> From: Lennart Borgman >> Date: Thu, 28 Jan 2010 12:47:26 +0100 >> Cc: alinsoar@voila.fr, Emacs-devel@gnu.org >> >> The Mozilla display engine displays images and text with different >> properties very well. And it is very flexible in its way to do that >> (since CSS requires that). > > Even images support in Emacs (which is admittedly young and unevolved) > already supports advanced features like :pointer and :map (see the > node "Image Descriptors"). ?? Of course Mozilla supports these kind of things too. > And I wasn't talking about simple text > properties that just change faces or the size of the characters, of > course. =C2=A0What about properties that need to evaluate Lisp forms or > depend on Lisp-level variables? Yes, I know you are talking about this. But AFAICS Mozilla has the framework to support similar things. Otherwise it could not support all the things needed to display certain web pages. >> I guess it does not directly has something that reminds of "special >> properties", but would that be hard to add? > > I have no idea. > >> Another point is of course searching for the properties. But Emacs has >> its own difficulties there (overlays). > > The difficulties is not with searching, the difficulties are with > maintaining many overlays. I thought the problem was that it takes long time to search for the overlays at point for example. Is that not the case?