shell: add key binding for rotating a surface
Add the key binding Super+Alt+MouseLeftButton to start rotating a
surface by dragging. The rotation is removed, when the drag is near the
rotation origin.
Rotated surface are a stress test for input event coordinate
transformations, damage region tracking, draw transformations, and
window move and resize orientation.
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
diff --git a/src/compositor.c b/src/compositor.c
index 7b1b0f4..02358b2 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -227,7 +227,7 @@
surface->shader = &surface->compositor->solid_shader;
}
-static void
+WL_EXPORT void
weston_surface_update_transform(struct weston_surface *surface)
{
struct weston_matrix *matrix = &surface->transform.matrix;