Struct FixedSelection 

pub struct FixedSelection {
    model: BoundObject<ListModel>,
    pub(super) item_equivalence_fn: RefCell<Option<Box<dyn Fn(&Object, &Object) -> bool>>>,
    selected: Cell<u32>,
    selected_item: RefCell<Option<Object>>,
    is_empty: PhantomData<bool>,
}

Fields

model: BoundObject<ListModel>

The underlying model.

item_equivalence_fn: RefCell<Option<Box<dyn Fn(&Object, &Object) -> bool>>>

The function to use to test for equivalence of two items.

It is used when checking if an object still present when the underlying model changes. Which means that if there are two equivalent objects at the same time in the underlying model, the selected item might change unexpectedly between those two objects.

If this is not set, the Eq implementation is used, meaning that they must be the same object.

selected: Cell<u32>

The position of the selected item.

selected_item: RefCell<Option<Object>>

The selected item.

is_empty: PhantomData<bool>

Whether the model is empty.

Implementations

impl FixedSelection

fn register_type()

Registers the type only once.

impl FixedSelection

pub fn downgrade(&self) -> <Self as Downgrade>::Weak

impl FixedSelection

fn set_model(&self, model: Option<ListModel>)

Set the underlying model.

fn set_selected(&self, position: u32)

Set the selected item by its position.

fn set_selected_item(&self, item: Option<Object>)

Set the selected item.

fn is_empty(&self) -> bool

Whether the model is empty.

fn items_changed_cb( &self, model: &ListModel, position: u32, removed: u32, added: u32, )

Handle when items changed in the underlying model.

Trait Implementations

impl Debug for FixedSelection

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FixedSelection

fn default() -> Self

Returns the “default value” for a type.

impl DerivedObjectProperties for FixedSelection

fn derived_properties() -> &'static [ParamSpec]

Properties installed for this type.

fn derived_property(&self, id: usize, pspec: &ParamSpec) -> Value

Similar to ObjectImpl but auto-generated by the Properties macro to allow handling more complex use-cases.

fn derived_set_property(&self, id: usize, value: &Value, pspec: &ParamSpec)

Similar to ObjectImpl but auto-generated by the Properties macro to allow handling more complex use-cases.

impl ListModelImpl for FixedSelection

fn item_type(&self) -> Type

fn n_items(&self) -> u32

fn item(&self, position: u32) -> Option<Object>

impl ObjectImpl for FixedSelection

fn properties() -> &'static [ParamSpec]

Properties installed for this type.

fn set_property(&self, id: usize, value: &Value, pspec: &ParamSpec)

Property setter.

fn property(&self, id: usize, pspec: &ParamSpec) -> Value

Property getter.

fn signals() -> &'static [Signal]

Signals installed for this type.

fn constructed(&self)

Constructed.

fn dispose(&self)

Disposes of the object.

fn notify(&self, pspec: &ParamSpec)

Function to be called when property change is notified for with self.notify("property").

fn dispatch_properties_changed(&self, pspecs: &[ParamSpec])

impl ObjectSubclass for FixedSelection

const NAME: &'static str = "FixedSelection"

GObject type name.

type ParentType = Object

Parent Rust type to inherit from.

type Class = ClassStruct<FixedSelection>

The C class struct.

type Instance = InstanceStruct<FixedSelection>

The C instance struct.

type Type = FixedSelection

Wrapper around this subclass defined with wrapper!

type Interfaces = (ListModel, SelectionModel)

List of interfaces implemented by this type.

fn new() -> Self

Constructor.

const ABSTRACT: bool = false

If this subclass is an abstract class or not.

const ALLOW_NAME_CONFLICT: bool = false

Allow name conflicts for this class.

fn type_init(_type_: &mut InitializingType<Self>)

Additional type initialization.

fn class_init(_klass: &mut Self::Class)

Class initialization.

fn with_class(_klass: &Self::Class) -> Self

Constructor.

fn instance_init(_obj: &InitializingObject<Self>)

Performs additional instance initialization.

impl ObjectSubclassType for FixedSelection

fn type_data() -> NonNull<TypeData>

Storage for the type-specific data used during registration.

fn type_() -> Type

Returns the glib::Type ID of the subclass.

impl SelectionModelImpl for FixedSelection

fn selection_in_range(&self, _position: u32, _n_items: u32) -> Bitset

fn is_selected(&self, position: u32) -> bool

fn select_all(&self) -> bool

fn select_item(&self, position: u32, unselect_rest: bool) -> bool

fn select_range(&self, position: u32, n_items: u32, unselect_rest: bool) -> bool

fn set_selection(&self, selected: &Bitset, mask: &Bitset) -> bool

fn unselect_all(&self) -> bool

fn unselect_item(&self, position: u32) -> bool

fn unselect_range(&self, position: u32, n_items: u32) -> bool