Struct gtk4::CellAreaContext

#[repr(transparent)]
pub struct CellAreaContext { /* private fields */ }

This object will be removed in GTK 5 Stores geometrical information for a series of rows in a GtkCellArea

The CellAreaContext object is created by a given CellArea implementation via its GtkCellAreaClass.create_context() virtual method and is used to store cell sizes and alignments for a series of TreeModel rows that are requested and rendered in the same context.

CellLayout widgets can create any number of contexts in which to request and render groups of data rows. However, it’s important that the same context which was used to request sizes for a given TreeModel row also be used for the same row when calling other CellArea APIs such as gtk_cell_area_render() and gtk_cell_area_event().

Properties

area

The CellArea this context was created by

Readable | Writeable | Construct Only

minimum-height

The minimum height for the CellArea in this context for all TreeModel rows that this context was requested for using gtk_cell_area_get_preferred_height().

Readable

minimum-width

The minimum width for the CellArea in this context for all TreeModel rows that this context was requested for using gtk_cell_area_get_preferred_width().

Readable

natural-height

The natural height for the CellArea in this context for all TreeModel rows that this context was requested for using gtk_cell_area_get_preferred_height().

Readable

natural-width

The natural width for the CellArea in this context for all TreeModel rows that this context was requested for using gtk_cell_area_get_preferred_width().

Readable

Implements

CellAreaContextExt, glib::ObjectExt

Implementations

impl CellAreaContext

pub const NONE: Option<&'static CellAreaContext> = None

Trait Implementations

impl Clone for CellAreaContext

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CellAreaContext

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

Formats the value using the given formatter.

impl Display for CellAreaContext

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

Formats the value using the given formatter.

impl HasParamSpec for CellAreaContext

type ParamSpec = ParamSpecObject

type SetValue = CellAreaContext

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, CellAreaContext>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for CellAreaContext

fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: CellAreaContextImpl> IsSubclassable<T> for CellAreaContext

fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization.

fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization.

impl Ord for CellAreaContext

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval.

impl ParentClassIs for CellAreaContext

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for CellAreaContext

fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<OT: ObjectType> PartialOrd<OT> for CellAreaContext

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for CellAreaContext

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for CellAreaContext