Struct gtk4::TextTagTable

source ·
#[repr(transparent)]
pub struct TextTagTable { /* private fields */ }
Expand description

The collection of tags in a TextBuffer

You may wish to begin by reading the text widget conceptual overview, which gives an overview of all the objects and data types related to the text widget and how they work together.

GtkTextTagTables as GtkBuildable

The TextTagTable implementation of the Buildable interface supports adding tags by specifying “tag” as the “type” attribute of a element.

An example of a UI definition fragment specifying tags:

<object class="GtkTextTagTable">
 <child type="tag">
   <object class="GtkTextTag"/>
 </child>
</object>

Implements

glib::ObjectExt, BuildableExt

Implementations§

Creates a new TextTagTable.

The table contains no tags by default.

Returns

a new TextTagTable

Add a tag to the table.

The tag is assigned the highest priority in the table.

@tag must not be in a tag table already, and may not have the same name as an already-added tag.

tag

a TextTag

Returns

true on success.

Calls @func on each tag in @self, with user data @data.

Note that the table may not be modified while iterating over it (you can’t add/remove tags).

func

a function to call on each tag

Returns the size of the table (number of tags)

Returns

number of tags in @self

Look up a named tag.

name

name of a tag

Returns

The tag

Remove a tag from the table.

If a TextBuffer has @self as its tag table, the tag is removed from the buffer. The table’s reference to the tag is removed, so the tag will end up destroyed if you don’t have a reference to it.

tag

a TextTag

Emitted every time a new tag is added in the TextTagTable.

tag

the added tag.

Emitted every time a tag in the TextTagTable changes.

tag

the changed tag.

size_changed

whether the change affects the TextView layout.

Emitted every time a tag is removed from the TextTagTable.

The @tag is still valid by the time the signal is emitted, but it is not associated with a tag table any more.

tag

the removed tag.

Trait Implementations§

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Auto Trait Implementations§

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