Use a label that is long enough to require wrapping and force it into a
hardcoded width. Use a sentence where all the words have the same size
to not get unwanted wrapping behavior.
Also append a 2nd row to check that the first row gets the proper height
allocated.
Found by Marco Melorio.
The width of a logical rect after line breaking is sometimes not
wide enough to cause line breaking to break at the exact same points.
(Is that by design or a bug in Pango? I don't know.)
So don't use the width, and only relyon values we actually set to
pango_layout_set_width().
Don't just use the natural size as the max size, the natural size
is the ideal size, not necessarily the maximum size.
Also check the nat size for opposite min size.
For size -1 in the opposite orientation, GtkBoxLayout used to measure
the children based on their min size in the box's orientation instead of
-1. That wasn't really intended, but was a side effect of how the sizing
code did (not) distribute extra size above the minimum size.
This is clearly not what we want.
What we want is measuring the orientation as is for size -1. Then we
want to just take the maximum of all children and use that.
A reftest is incldued that ensures a vbox wraps a label just like an
hbox does.
The old code couldn't properly do height-for-width because it only
computed the widest and smallest layout instead of looking at the actual
passed in for-size.
The label-sizing reftest has been adapted as the label code is now smart
enough to always display the whole text and no longer requests a too
small width-for-single-row when wrapping.
Ping/pong serials are not meant to be interpreted as user input serials
(e.g. those given back later to the compositor on grabs). As a matter
of fact, Mutter uses a different count (i.e. timestamps) in these, so
using these serials may confuse the compositor into denying certain
operations like DnD.
This reverts commit ba44e7a228.
The change was meant to revert to old GTK3 behavior but it actually
broke new GTK4 behavior that is in use where max-width-chars is used to
determine an ideal size, but where we don't want to limit the width to
that size.
So what happens is the reintroduction of GTK3-style lots of whitepsace
bugs, and we really don't want those.
We also don't want to break backwards compat if we can avoid it.
So let's revert this.
The reftest that was made for this purpose has been adapted.
Fixes#4399
Instead of using GL_BACK, use GL_BACK_LEFT, because the spec demands
this (many drivers don't).
Also move the call from the GDK backends into the GLContext code, as
this is a generic EGL issue (nvidia being the main driver in need of
this call, see 9c4c4eaaa1 for a longer
discussion).
Fixes#4402
The larger check works well in the headerbar, but not inline in various UI elements. This reverts the larger check since the latter is more common. For selection mode, a separate larger icon (selection-mode-symbolic) has been added to adwaita-icon-theme.
