Struct gtk4::CellRendererCombo [−][src]
pub struct CellRendererCombo(_);Expand description
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
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
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.
If true, the cell renderer will include an entry and allow to enter
values other than the ones in the popup list.
If true, the cell renderer will include an entry and allow to enter
values other than the ones in the popup list.
Holds a tree model containing the possible values for the combo box. Use the text_column property to specify the column holding the values.
Holds a tree model containing the possible values for the combo box. Use the text_column property to specify the column holding the values.
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.
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
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)
Trait Implementations
type Parent = CellRendererText
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
Returns the type identifier of Self.
Auto Trait Implementations
impl RefUnwindSafe for CellRendererCombo
impl !Send for CellRendererCombo
impl !Sync for CellRendererCombo
impl Unpin for CellRendererCombo
impl UnwindSafe for CellRendererCombo
Blanket Implementations
Mutably borrows from an owned value. Read more
Upcasts an object to a superclass or interface T. Read more
Upcasts an object to a reference of its superclass or interface T. Read more
Tries to downcast to a subclass or interface implementor T. Read more
Tries to downcast to a reference of its subclass or interface implementor T. Read more
Tries to cast to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
Tries to cast to reference to an object of type T. This handles upcasting, downcasting
and casting between interface and interface implementors. All checks are performed at
runtime, while downcast and upcast will do many checks at compile-time already. Read more
Casts to T unconditionally. Read more
Casts to &T unconditionally. Read more
Returns true if the object is an instance of (can be cast to) T.
pub fn set_property<'a, N, V>(
&self,
property_name: N,
value: V
) -> Result<(), BoolError> where
N: Into<&'a str>,
V: ToValue,
pub fn set_property_from_value<'a, N>(
&self,
property_name: N,
value: &Value
) -> Result<(), BoolError> where
N: Into<&'a str>,
pub fn set_properties_from_value(
&self,
property_values: &[(&str, Value)]
) -> Result<(), BoolError>
pub fn has_property<'a, N>(&self, property_name: N, type_: Option<Type>) -> bool where
N: Into<&'a str>,
pub fn find_property<'a, N>(&self, property_name: N) -> Option<ParamSpec> where
N: Into<&'a str>,
Safety Read more
Safety Read more
Safety Read more
Safety Read more
pub fn connect<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: 'static + Fn(&[Value]) -> Option<Value> + Send + Sync,
Same as connect but takes a SignalId instead of a signal name.
pub fn connect_local<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: 'static + Fn(&[Value]) -> Option<Value>,
Same as connect_local but takes a SignalId instead of a signal name.
pub unsafe fn connect_unsafe<'a, N, F>(
&self,
signal_name: N,
after: bool,
callback: F
) -> Result<SignalHandlerId, BoolError> where
N: Into<&'a str>,
F: Fn(&[Value]) -> Option<Value>,
Same as connect_unsafe but takes a SignalId instead of a signal name.
Emit signal by signal id.
Same as emit but takes Value for the arguments.
Emit signal by its name.
Same as emit_by_name but takes Value for the arguments.
Emit signal with details by signal id.
Same as emit_with_details but takes Value for the arguments.
pub fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec) + Send + Sync,
pub fn connect_notify_local<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: 'static + Fn(&T, &ParamSpec),
pub unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerId where
F: Fn(&T, &ParamSpec),
pub fn bind_property<'a, O, N, M>(
&'a self,
source_property: N,
target: &'a O,
target_property: M
) -> BindingBuilder<'a> where
O: ObjectType,
N: Into<&'a str>,
M: Into<&'a str>,
Returns a SendValue clone of self.