From dd27e55a5f41000d45db1654860ca90b2240f937 Mon Sep 17 00:00:00 2001 From: Alexander Larsson Date: Tue, 20 Aug 2013 15:37:13 +0200 Subject: [PATCH] Update README.in --- README.in | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/README.in b/README.in index 876716536d..e64f8772df 100644 --- a/README.in +++ b/README.in @@ -97,6 +97,25 @@ Release notes for 3.10 to just the insensitive and backdrop states. This mostly affects theming. +* The way widget drawing happens has changed. Earlier versions handled + one expose event per GdkWindow, each with a separate cairo_t. Now we + only handle the expose event on the toplevel and reuse the same + cairo_t (with the right translation and clipping) for the entire + widget hierarchy, recursing down via the GtkWidget::draw signal. + Having all rendering in the same call tree allows effects like + opacity and offscreen rendering of entire widget sub-hierarchies. + Generally this should not require any changes in widgets, but + code looking at e.g. the current expose event may see different + behavior than before. + +* The Gtk+ scrolling implementation has changed. gdk_window_scroll() + and gdk_window_move_region() no longer copy the region on the + window, but rather invalidate the entire scrolled region. This is + slightly slower, but allowed us to implement a offscreen surface + scrolling method which better fits modern hardware. Most scrolling + widgets in Gtk+ have been converted to use this model for scrolling, + but external widgets implementing scrolling using GdkWindow may see + some slowdown. Release notes for 3.8 ===================== -- 2.30.2