Proposing _NET_WM_OPAQUE_REGION
Philipp Knechtges <[email protected]> Sat, 26 Nov 2011 13:43:34 +0100
| Newsgroups | gmane.comp.gnome.wm-spec |
|---|---|
| Message-ID | <[email protected]> |
Hi folks, time has passed since the initial proposal [1] of _NET_WM_OPAQUE_REGION but here it is finally :) Support for it has recently been added to kwin [2] and I hope that more compositing managers will adapt it. Kind regards, Philipp [1] http://www.mail-archive.com/[email protected]/msg00740.html [2] http://commits.kde.org/kde-workspace/9e3b75603f33cb6ddab564a4eb05e8521c652506 _______________________________________________ wm-spec-list mailing list [email protected] http://mail.gnome.org/mailman/listinfo/wm-spec-list
0001-Adding-_NET_WM_OPAQUE_REGION.patch
(text/plain, 1.6 KB)
From 84bab2732c00f68d1dab802cdc6ec08dcf327293 Mon Sep 17 00:00:00 2001 From: Philipp Knechtges <[email protected]> Date: Sun, 20 Nov 2011 13:09:18 +0100 Subject: [PATCH] Adding _NET_WM_OPAQUE_REGION Adding a new property _NET_WM_OPAQUE_REGION that as the name says represents an area of the window that occludes the background. The implementation is the same as discussed in http://www.mail-archive.com/[email protected]/msg00715.html --- wm-spec/wm-spec.xml | 17 +++++++++++++++++ 1 files changed, 17 insertions(+), 0 deletions(-) diff --git a/wm-spec/wm-spec.xml b/wm-spec/wm-spec.xml index f7676e4..6234438 100644 --- a/wm-spec/wm-spec.xml +++ b/wm-spec/wm-spec.xml @@ -1553,6 +1553,23 @@ window's frame. left, right, top and bottom are widths of the respective borders added by the Window Manager. </para> </sect2> + + <sect2><title>_NET_WM_OPAQUE_REGION</title> + <programlisting><![CDATA[ +_NET_WM_OPAQUE_REGION, x, y, width, height, CARDINAL[][4]/32 +]]></programlisting> + <para> +The Client MAY set this property to a list of 4-tuples [x, y, width, height], +each representing a rectangle in window coordinates that is occluding the +background. Inherent in this definition is that the property information is only +considered to be meaningful if the window is an ARGB visual. The compositing manager MAY +ignore this hint. + </para> + <para> +Rationale: This gives the compositing manager more room for optimizations, e.g. by not +drawing the occluded background. + </para> + </sect2> </sect1> <sect1> <title>Window Manager Protocols</title> -- 1.7.6.4