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For example, for an entry within a notebook, previously these 2 rules would
have the same weight:

.entry {}
.notebook {}

Now ".entry" will rank higher than ".notebook" for the GtkEntry, further
specific selectors such as:

.notebook .entry {}

still get a higher score than the previous ones.

The cairo context has been already rotated, so using GTK_JUNCTION_BOTTOM
is expected to be used there.

Coordinates needed to be translated relative to the window position
in within the widget.

If the GtkComboBoxText doesn't have id-column or entry-text-column
set for some reason (value -1), better warn and return. Else, unrelated
assertions fail, and warnings from gtk_tree_model_get_column_type()
are printed, which are not really obvious.

https://bugzilla.gnome.org/show_bug.cgi?id=637018

Use accessors instead.

Instead use the accessors.

These fields are accessed in gtk.

libtracker-sparql is available in Tracker 0.9/0.10

It was accidentally removed in 0775b0a8

I committed my whole working tee instead of just one file. Ooops.
This reverts commit ded14b25.

It was accidentally removed in 0775b0a8

See bug 636732

Schedule marking of conflicts when printer has changed.
Map conflict warning immediately. (#635401)

Instead of gtk_widget_render_icon() which is now deprecated.

Instead of gtk_widget_render_icon() which is now deprecated.

Instead of gtk_widget_render_icon() which is now deprecated.

Instead of gtk_widget_render_icon() which is now deprecated.

Instead of gtk_widget_render_icon() which is now deprecated.

Instead of gtk_widget_render_icon() which is now deprecated.

Instead of gtk_widget_render_icon() which is now deprecated.

And move gtk_widget_render_icon() to deprecation guards block

Use the same annotation already used for add_objects_from_string

Mostly (out), and a few (allow-none) for parameters.

Move the guide into the 2-to-3 guide, since it is something
you have to do when porting from 2 to 3. Also add an example
for handling of temporary state changes and some more text
about color handling.

This allows us to add a check before executing
->get_preferred_height_for_width() to ensure we always
request for at least the minimum required size (and lets
us remove the warning in gtkcontainer.c telling implementors
to do this check manually from thier container implementations).