When placing tooltips, the csd shadow will get 'pushed up' and
may end up underneath the pointer. We don't want this to cause
the tooltip to be hidden, because that leads to flickering, so
ignore the shadow when finding the widget under the pointer.
This is old code from dating back many years. Nowadays, we can
just use css drawing and csd windows to achieve much the same
effect.
Themes will need some adjustment for this change.
https://bugzilla.gnome.org/show_bug.cgi?id=731187
When showing a tooltip on the edge of a monitor, the tooltip could be wrongly
placed and be shown going from one monitor to the next.
This happened because the current_window wasn't set visible, and when it wasn't
the returned allocated size would be 1, hence wrong calculations.
Signed-off-by: Olivier Brunel <jjk@jjacky.com>
https://bugzilla.gnome.org/show_bug.cgi?id=698730
Usually, educated GtkContainers' forall() implementation returns children
in an order that's safe for the default draw() implementation in GtkContainer.
So for widgets with some stacking notions (eg. GtkOverlay),
_gtk_widget_find_at_coords() needs to recurse within containers in reverse
order so it finds the topmost widget.
As this function is used in both tooltips and DnD code, this improves behavior
of "floating" widgets wrt those two. This could for example be seen in the
"Transparent" GTK+ demo, where dropping text on the entry results on the text
going to the textview.
https://bugzilla.gnome.org/show_bug.cgi?id=699239
In particular gtksettings.h and gtkstylecontext.h needed to be included
in lots of places now.
Also, I order the includes alphabetically in a bunch of headers.
If we get a composited-changed signal before the tooltip is ever realized we
have nothing to do.
This actually prevents a segfault in maybe_update_shape() because calling
gtk_widget_get_window() on a non-realized widget returns NULL.
https://bugzilla.gnome.org/show_bug.cgi?id=662467
Rounded corners now will always work, using XShape in case we're not
running a composite manager.
Also, setting an RGBA visual (if available) on the tooltip toplevel
enables them to be transparent if the theme specifies so.
https://bugzilla.gnome.org/show_bug.cgi?id=599617
It doesn't make sense to keep them separate as GtkSizeRequest requires a
GtkWidget and GtkWidget implements GtkSizeRequest, so you can never have
one without the other.
It also makes the code a lot easier because no casts are required when
calling functions.
Also, the names would translate to gtk_widget_get_width() and people
agreed that this would be a too generic name, so a "preferred" was added
to the names.
So this patch moves the functions:
gtk_size_request_get_request_mode() => gtk_widget_get_request_mode()
gtk_size_request_get_width() => gtk_widget_get_preferred_width()
gtk_size_request_get_height() => gtk_widget_get_preferred_height()
gtk_size_request_get_size() => gtk_widget_get_preferred_size()
gtk_size_request_get_width_for_height() =>
gtk_widget_get_preferred_width_for_height()
gtk_size_request_get_height_for_width() =>
gtk_widget_get_preferred_height_for_width()
... and moves the corresponding vfuncs to the GtkWidgetClass.
The patch also renames the implementations of the vfuncs in widgets to
include the word "preferrred".
Turn find_widget_under_pointer() into internal API
_gtk_widget_find_at_coords() which is needed for fixing above
bug. This should actually be a public utility function, and will be
moved to another file when its final API has been decided.
(cherry picked from commit c4b1bbf3e2)
