A bunch of private functions we use when parsing got exposed accidentaly
to the list of public symbols by virtue of not having the leading '_'
that we use to filter them out of the shared object — all the while the
header that declares them is a private, non installed one.
Let's rectify this situation with a bit of minor surgery on the code.
The priv->text field cannot ever be NULL, so we don't need to check for
that in a series of places. We also need to assert() that pre-condition
in the couple of places where we set the contents of the ClutterText
actor, namely in set_text_internal() and set_markup_internal().
Based on a patch by: Dan Winship <danw@gnome.org>
http://bugzilla.clutter-project.org/show_bug.cgi?id=2629
Setting :use-markup and :text is currently not idempotent, and it
depends on the ordering, e.g.:
g_object_set (actor, "use-markup", TRUE, "text", value, NULL);
does not yield the same results as:
g_object_set (actor, "text", value, "use-markup", TRUE, NULL);
This is particularly jarring when using ClutterText from ClutterScript,
but in general GObject properties should not rely on the order when used
from g_object_set().
The fix is to store the contents of the ClutterText as a separate string
from the displayed text, and use the contents, instead of the displayed
text, when toggling the :use-markup property.
Let's also add a unit test for good measure, to try and catch
regressions.
https://bugzilla.gnome.org/show_bug.cgi?id=651940
There is no prebuilt package for ATK 2.1.5 which Clutter now depends
on so let's build it from source instead. The ATK packages don't have
a .gz version so this patch also changes it to download the .bz2
version of json-glib to avoid having to accept both formats.
The easing test is a nice example of what ClutterAnimation and
clutter_actor_animate() can do. The "tween ball to the pointer
event coordinates" is a bit of a staple in animation libraries
and their documentation.
When we paint a ClutterText we ask the actor for a PangoLayout that fits
inside the actor's allocation - both width and height.
Sadly, whenever a height is set on a PangoLayout, Pango will wrap its
contents - regardless of whether the layout should actually wrap or not.
This means that in certain easy to exploit cases, Clutter will paint a
Text actor with its contents wrapping even if the :wrap property is set
to FALSE.
In order to fix this we need to encode some more cases inside the
::paint implementation of ClutterText, and ask the cache for a layout
that is sized as the allocation's width, but not as its height; we also
need to perform a clip if we detect that the PangoLayout's logical size
is going to overflow the allocated size. This clip might cause some
performance issue, given that clipping breaks batching in the Cogl
journal; hopefully all clips for text are going to be screen-aligned, so
at the end of the batch it'll just scissor them out.
http://bugzilla.clutter-project.org/show_bug.cgi?id=2339
Like commit d0439cfb586ca14282c89035119a4acbc0295df7 for
AlignConstraint, let's check that the BindConstraint source is not
a child or a grandchild of the actor attached to the Constraint.
AlignConstraint won't work if the source is a child or a grandchild of
the ClutterActorMeta:actor to which it has been attached to: the
allocation flows from the parent to its children, not the other way
around; in order to avoid weirdness, we better document and check
that when we set the actor and when we set the source.
The disconnect_matched() function is a bit too complicated, and its
simpler wrapper disconnect_by_func() is functionally equivalent in the
cases used by the cookbook examples.
