Interfacing Raku to Gnome GTK+

Gnome::Gtk3::CheckButton

widgets with a discrete toggle button

Description

A Gnome::Gtk3::CheckButton places a discrete Gnome::Gtk3::ToggleButton next to a widget, (usually a Gnome::Gtk3::Label). See the section on Gnome::Gtk3::ToggleButton widgets for more information about toggle/check buttons.

The important signal ( sig toggled ) is also inherited from Gnome::Gtk3::ToggleButton.

Css Nodes

checkbutton
├── check
╰── <child>

A Gnome::Gtk3::CheckButton with indicator (see gtk_toggle_button_set_mode()) has a main CSS node with name checkbutton and a subnode with name check.

button.check
├── check
╰── <child>

A Gnome::Gtk3::CheckButton without indicator changes the name of its main node to button and adds a .check style class to it. The subnode is invisible in this case.

See Also

Gnome::Gtk3::CheckMenuItem, Gnome::Gtk3::Button, Gnome::Gtk3::ToggleButton, Gnome::Gtk3::RadioButton

Synopsis

Declaration

unit class Gnome::Gtk3::CheckButton;
also is Gnome::Gtk3::ToggleButton;

Inheriting this class

Inheriting is done in a special way in that it needs a call from new() to get the native object created by the class you are inheriting from.

use Gnome::Gtk3::CheckButton;

unit class MyGuiClass;
also is Gnome::Gtk3::CheckButton;

submethod new ( |c ) {
  # let the Gnome::Gtk3::CheckButton class process the options
  self.bless( :GtkCheckButton, |c);
}

submethod BUILD ( ... ) {
  ...
}

Example

my Gnome::Gtk3::CheckButton $bold-option .= new(:label<Bold>);

# later ... check state
if $bold-option.get-active {
  # Insert text in bold
}

Methods

new

default, no options

Create a new plain object.

multi method new ( )

:label, :mnemonic

Creates a new Gnome::Gtk3::CheckButton with a Label to the right of it. When $mnemonic is True then the label text is checked for underscores, so underscores in $label indicate the mnemonic for the check button.

multi method new ( Str :$label!, Bool :$mnemonic = False )

  • $label; The label for the checkbutton.

  • $mnemonic; Look for underscores if True.

:native-object

Create an object using a native object from elsewhere. See also Gnome::N::TopLevelSupportClass.

multi method new ( N-GObject :$native-object! )

:build-id

Create an object using a native object from a builder. See also Gnome::GObject::Object.

multi method new ( Str :$build-id! )