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Avoid lots of unnecessary computation when moving toplevel windows

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There is no need to do all these computations when moving toplevels
as that can't really change any visible regions. Nor will it cause
any exposes we need to handle.
This commit is contained in:
Alexander Larsson 2009-01-19 15:44:09 +01:00 committed by Alexander Larsson
parent cdb405dfcf
commit c967cabc35
1 changed files with 24 additions and 20 deletions
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44
gdk/gdkwindow.c
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@ -5803,6 +5803,7 @@ gdk_window_move_resize_internal (GdkWindow *window,
int old_x, old_y, old_abs_x, old_abs_y;
int dx, dy;
gboolean do_move_native_children;
gboolean is_toplevel, is_resize;
g_return_if_fail (GDK_IS_WINDOW (window));
@ -5818,29 +5819,30 @@ gdk_window_move_resize_internal (GdkWindow *window,
old_x = private->x;
old_y = private->y;
is_toplevel =
private->parent == NULL ||
GDK_WINDOW_TYPE (private->parent) == GDK_WINDOW_ROOT;
is_resize = (width != -1) || (height != -1);
if (GDK_WINDOW_IS_MAPPED (window) &&
(!is_toplevel || is_resize) &&
!private->input_only)
{
expose = TRUE;
old_region = gdk_region_copy (private->clip_region);
/* Adjust region to parent window coords */
gdk_region_offset (old_region, private->x, private->y);
}
if (gdk_window_has_impl (private))
{
if (GDK_WINDOW_IS_MAPPED (window))
{
expose = !private->input_only;
old_region = gdk_region_copy (private->clip_region);
/* Adjust region to parent window coords */
gdk_region_offset (old_region, private->x, private->y);
}
GDK_WINDOW_IMPL_GET_IFACE (private->impl)->move_resize (window, with_move, x, y, width, height);
}
else
{
if (GDK_WINDOW_IS_MAPPED (window))
{
expose = !private->input_only;
old_region = gdk_region_copy (private->clip_region);
/* Adjust region to parent window coords */
gdk_region_offset (old_region, private->x, private->y);
}
if (with_move)
{
private->x = x;
@ -5861,16 +5863,18 @@ gdk_window_move_resize_internal (GdkWindow *window,
dx = private->x - old_x;
dy = private->y - old_y;
old_abs_x = private->abs_x;
old_abs_y = private->abs_y;
recompute_visible_regions (private, TRUE, FALSE);
/* Avoid recomputing for pure toplevel moves, for performance reasons */
if (!is_toplevel || is_resize)
recompute_visible_regions (private, TRUE, FALSE);
if (do_move_native_children &&
(old_abs_x != private->abs_x ||
old_abs_y != private->abs_y))
move_native_children (private);
move_native_children (private);
if (expose)
{