Struct gtk4::CellRendererCombo

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

Renders a combobox in a cell

CellRendererCombo renders text in a cell like CellRendererText from which it is derived. But while CellRendererText offers a simple entry to edit the text, CellRendererCombo offers a ComboBox widget to edit the text. The values to display in the combo box are taken from the tree model specified in the CellRendererCombo:model property.

The combo cell renderer takes care of adding a text cell renderer to the combo box and sets it to display the column specified by its CellRendererCombo:text-column property. Further properties of the combo box can be set in a handler for the GtkCellRenderer::editing-started signal.

Implements

CellRendererTextExt, CellRendererExt, glib::ObjectExt, CellRendererExtManual

Implementations

impl CellRendererCombo

pub fn new() -> CellRendererCombo

Creates a new CellRendererCombo. Adjust how text is drawn using object properties. Object properties can be set globally (with g_object_set()). Also, with TreeViewColumn, you can bind a property to a value in a TreeModel. For example, you can bind the “text” property on the cell renderer to a string value in the model, thus rendering a different string in each row of the TreeView.

Returns

the new cell renderer

pub fn builder() -> CellRendererComboBuilder

Creates a new builder-pattern struct instance to construct CellRendererCombo objects.

This method returns an instance of CellRendererComboBuilder which can be used to create CellRendererCombo objects.

pub fn has_entry(&self) -> bool

If true, the cell renderer will include an entry and allow to enter values other than the ones in the popup list.

pub fn set_has_entry(&self, has_entry: bool)

If true, the cell renderer will include an entry and allow to enter values other than the ones in the popup list.

pub fn model(&self) -> Option<TreeModel>

Holds a tree model containing the possible values for the combo box. Use the text_column property to specify the column holding the values.

pub fn set_model<P: IsA<TreeModel>>(&self, model: Option<&P>)

Holds a tree model containing the possible values for the combo box. Use the text_column property to specify the column holding the values.

pub fn text_column(&self) -> i32

Specifies the model column which holds the possible values for the combo box.

Note that this refers to the model specified in the model property, not the model backing the tree view to which this cell renderer is attached.

CellRendererCombo automatically adds a text cell renderer for this column to its combo box.

pub fn set_text_column(&self, text_column: i32)

Specifies the model column which holds the possible values for the combo box.

Note that this refers to the model specified in the model property, not the model backing the tree view to which this cell renderer is attached.

CellRendererCombo automatically adds a text cell renderer for this column to its combo box.

pub fn connect_changed<F: Fn(&Self, TreePath, &TreeIter) + 'static>( &self, f: F ) -> SignalHandlerId

This signal is emitted each time after the user selected an item in the combo box, either by using the mouse or the arrow keys. Contrary to GtkComboBox, GtkCellRendererCombo::changed is not emitted for changes made to a selected item in the entry. The argument @new_iter corresponds to the newly selected item in the combo box and it is relative to the GtkTreeModel set via the model property on GtkCellRendererCombo.

Note that as soon as you change the model displayed in the tree view, the tree view will immediately cease the editing operating. This means that you most probably want to refrain from changing the model until the combo cell renderer emits the edited or editing_canceled signal.

path_string

a string of the path identifying the edited cell (relative to the tree view model)

new_iter

the new iter selected in the combo box (relative to the combo box model)

pub fn connect_has_entry_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

pub fn connect_model_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

pub fn connect_text_column_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

Trait Implementations

impl Clone for CellRendererCombo

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 CellRendererCombo

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

Formats the value using the given formatter.

impl Default for CellRendererCombo

fn default() -> Self

Returns the “default value” for a type.

impl Display for CellRendererCombo

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

Formats the value using the given formatter.

impl Hash for CellRendererCombo

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 Ord for CellRendererCombo

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 CellRendererCombo

type Parent = CellRendererText

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

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 CellRendererCombo

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 CellRendererCombo

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for CellRendererCombo

impl IsA<CellRenderer> for CellRendererCombo

impl IsA<CellRendererText> for CellRendererCombo