e8aa9b0440 introduced a new debug mode
that highlights resizes. Unfortunately it has the side effect of
always queueing redraws even when the debug mode is not enabled.
Make the redraw conditional.
When a gtk_widget_queue_allocate() on some widget increases the clip,
widget->parent's clip was not updated. This appraoch naively just
unions widget's new clip with widget->parent's clip.
This of course only works if widget and parent share the same GDK
window. In the cases where they don't we can't do anything and need a
better fix.
Fixes label-text-shadow-changes-modify-clip.ui reftest.
The g_print documentation explicitly says not to do this, since
g_print is meant to be redirected by applications. Instead use
g_message for logging that can be triggered via GTK_DEBUG.
GtkWidget uses gtk_container_foreach() to iterate over children and
check whether they need their allocation reset.
However, that leaves out internal children, such as scrollbars of a
GtkScrolledWindow. Use gtk_container_forall() instead.
Now selecting a widget by class name no longer works.
This is probably most relevant for users outside of GTK that want to
style their own widgets. Those widgets should now either add their own
style classes (if they want to adjust existing CSS) or use
gtk_widget_class_set_css_name() themselves (if they want to get rid of
all "upstream" styling).
Check that non-native window are indeed children of the event window and
only then confirm that they should be drawn.
Fixes Glade thinking that it's okay to have the draw function do
different things depending on what window to draw. (This should really
be fixed in Glade.)
... and remove the also forgotten void function that lingered around
with it.
Fixes opacity=0 parts like inactive spinners or sort indicators in
treeview headers being drawn since last commit.
Oops.
Previously, we had a special cae to draw subwindows of widgets.
This is not necessary as conformant widgets should be able to properly
render themselves when all windows need to be painted.
From now on assume that is the case.
We therefore paint nonnative GDK windows "inline" by just returning TRUE
for gtk_cairo_should_draw_window() for those windows.
This speeds up hilighting different rows in the listbox gtk-demo example
tremendously (by a factor of 10 or more) as the previous code was
O(<number of non-window subwidgets> *
<number of subwindows>) which in the listbox example were ~15,000 and
~2,000 respectively.
If a GtkGestureSingle is set as touch-only, pointer events would be
discarded without giving an opportunity to the regular GtkGesture
handler to manage those.
Because the pointer events weren't actually managed by the gesture,
gtk_gesture_get_sequence_state() (rather unhelpfully here) will resort
to returning GTK_EVENT_SEQUENCE_NONE, which is in turn interpreted
by _gtk_widget_consumes_motion() as "may be handling the events for
this sequence", because gestures in this state presumably handle
the events, just that it's not "claimed" yet.
Instead, use gtk_gesture_handles_sequence(), which will perform the
expected check on the event sequence being managed, as we expect
here.
In https://bugzilla.gnome.org/show_bug.cgi?id=601425 the annotations
were changed to int as they not only take the predefined enum values
but also user defined values registered through gtk_icon_size_register()
As a result the typelib doesn't contain any information about
GtkIconSize for those arguments and the Python docstring only
shows the corresponding Python type "int".
This changes the argument docs to mention the type explicitly
so the Python doc generator can add a link to Gtk.IconSize
which contains the most useful predefined values.
https://bugzilla.gnome.org/show_bug.cgi?id=757411
Previously, the ID was only set on the CSS node as a side-effect
of calling gtk_widget_get_style_context. This was showing up
in CSS style tests as nodes lacking their IDs.
gdk_widget_get_frame_clock can return NULL. In particular,
this can happen when the drag window is destroyed at the end
of a DND operation. Handle this gracefully when it happens.
When setting the parent of a widget, queue_resize() on the widget will
be optimized away if the widget already had a resize queued.
Plus, we do not need to resize the widget as its size request is not
going to change.
This makes sure that hidden widgets always have priv->alloc_needed set
on them.
The constructor sets that flag, so we want to have it back when we
revert to this state.
This fixes GtkWindow skipping a size_allocate() when reshowing a
previously hidden window and thereby not updating its allocation and
clip. And that in turn would lead to draws not happening and us beig
left with a black window.
There are currently three widget that implement such a property, and
there are other widgets for which the behavior can make sense. It
seems like a good time to add the property to GtkWidget itself so
subclasses can choose to respect it without adding their own property.
https://bugzilla.gnome.org/show_bug.cgi?id=757269
Mirror the behavior of gtk_widget_queue_resize() and always queue a
redraw. If we ever want to cause allocates without redraws we can add
gtk_widget_queue_allocate_no_redraw() then.
I had initially assumed gtk_widget_size_allocate() would take care of
queueing redraws, but it does not do that when neither size nor position
change. And that is obviously what's happening after
gtk_widget_queue_allocate().
Fixes buttons sometimes not redrawing (the record button in
widget-factory after locking it, all buttons when switching to the dark
theme).
When gtk_widget_show() or gtk_widget_hide() is called, don't queue a
resize on the widget itself but on the parent.
The widget itself may already be marked as in need of a resize and
the call would be optimized out and never reach the parent.
The parent size will change though because a child widget just changed
its visibility.
Fixes a bunch of issues with menus appearing black, toolbas not hiding
in widget-factory and also various reftests.
This commit toggles the big switch. We now don't run size_allocate()
from the toplevel up anymore in cases where we don't need to.
Things might be broken in subtle ways as a result of this commit. We'll
have to find them and fix them.
This happens way too much, so it's disabled unless GTK_DEBUG=geometry is
on.
Also, we can't detect it in the call to queue_resize() yet, only during
size_allocate(), so the warning comes after the signal emission.
... and API to set and unset it.
It is set when gtk_widget_queue_resize() is called.
It is unset when gtk_widget_get_preferred_width/height() is called.
So far it is not used.
This is so widgets can queue a rerun of their allocation logic, but
without triggering resizes everywhere.
For now, it just calls gtk_widget_queue_resize().
This changes widget paths for widgets with a CSS name to return that CSS
name, now that we have added API for it.
This means that style properties are now matches using the CSS name.
Also fix the theme to use the correct name when matching style properties.
See the previous commit for why this is necessary.
Also make gtk_widget_class_set_css_name work by looking at
the correct class for the name.
Note for future reference: GTK_WIDGET_GET_CLASS() does not
work in the instance init function.
Almost all callers of _gtk_widget_draw already did their own
cairo_save/restore, so drop the save/restore calls inside
_gtk_widget_draw and instead fix the last caller, gtk_widget_draw,
to do the same.
We can use gdk_window_peek_children here, instead of copying
the list. Note that we preserve the bottom-to-top ordering by
iterating the list from the end.
gdk_window_get_children_with_user_data was doing a list
reversal while filtering the list.
The default event bubbling paths are prone to just running event controllers
even after the widget was potentially unrealized/destroyed in an event
handler callback, so bail out early if that's the case.
https://bugzilla.gnome.org/show_bug.cgi?id=755352
It makes no sense to skip denied sequences here, the gestures are
still carrying out the accounting for these, which must be also put
to an end if we're possibly not receiving any further events from
this sequence.
https://bugzilla.gnome.org/show_bug.cgi?id=754098
At the time event_check_cancel_sequence_on_hierarchy() is called, the widget
has been already unparented. Given the widget itself is being destroyed,
cancellation on it is impending in one way or another, we still must
propagate cancellation across all parents, so retrieve it early before
possible widget destruction.
https://bugzilla.gnome.org/show_bug.cgi?id=754098
The GtkEventController event mask is private, and set early by GtkGesture
implementations. Being this private data, there is no corresponding
property, so this code is a no-op, there is just no need to listen to
changes there.
We use to rely on grab broken events for most of the event sequence
lifetime, this breaks though on GDK_BUTTON_RELEASE/GDK_TOUCH_END, as there's
no longer a grab at that time.
For these cases (and all others where there's destroy/unrealize calls
involved during event dispatching), catch this on the late
WIDGET_REALIZED_FOR_EVENT calls on widget event handling functions.
https://bugzilla.gnome.org/show_bug.cgi?id=754098
This avoids a lot of overhead in the common case where a signal
is not connected and we're just using the class vfunc (which is true
for all in-libgtk widgets). Additionally it makes backtraces in
debuggers and profiles much much nicer to look at.
https://bugzilla.gnome.org/show_bug.cgi?id=754986
Merge it into GtkWidgetPrivate. In my measurements, about half
of all widgets have a non-default auxinfo struct, and we use this
information in size allocation, so it is nice to avoid the gdata
overhead.
