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docs: Mention <packing> in migration guide

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Add another hint for what to do with child properties.

Fixes: #3950
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Matthias Clasen 2021-06-04 07:41:25 -04:00
parent 036dd60a4e
commit c4cbd6ec1b
1 changed files with 5 additions and 0 deletions
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docs/reference/gtk/migrating-3to4.md
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@ -804,6 +804,11 @@ by a layout manager (if they are layout-related), or handled in some
other way. One possibility is to use child meta objects, as seen with
[class@Gtk.AssistantPage], [class@Gtk.StackPage] and the like.
If you used to define child properties with `<packing>` in ui files, you have
to switch to using `<layout>` for the corresponding layout properties.
`gtk4-builder-tool` can help with this conversion, with the `--3to4` option
of the `simplify` command.
The replacements for gtk_container_add() are:
| Widget | Replacement |