Struct gtk4::CellView [−][src]
pub struct CellView(_);Expand description
A widget displaying a single row of a GtkTreeModel
A CellView displays a single row of a TreeModel using a CellArea
and CellAreaContext. A CellAreaContext can be provided to the
CellView at construction time in order to keep the cellview in context
of a group of cell views, this ensures that the renderers displayed will
be properly aligned with each other (like the aligned cells in the menus
of ComboBox).
CellView is Orientable in order to decide in which orientation
the underlying CellAreaContext should be allocated. Taking the ComboBox
menu as an example, cellviews should be oriented horizontally if the menus are
listed top-to-bottom and thus all share the same width but may have separate
individual heights (left-to-right menus should be allocated vertically since
they all share the same height but may have variable widths).
CSS nodes
GtkCellView has a single CSS node with name cellview.
Implements
WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, CellLayoutExt, OrientableExt, WidgetExtManual, AccessibleExtManual, CellLayoutExtManual
Implementations
pub fn with_context<P: IsA<CellArea>, Q: IsA<CellAreaContext>>(
area: &P,
context: &Q
) -> CellView
pub fn with_context<P: IsA<CellArea>, Q: IsA<CellAreaContext>>(
area: &P,
context: &Q
) -> CellView
Creates a new CellView widget with a specific CellArea
to layout cells and a specific CellAreaContext.
Specifying the same context for a handful of cells lets the underlying area synchronize the geometry for those cells, in this way alignments with cellviews for other rows are possible.
area
the CellArea to layout cells
context
the CellAreaContext in which to calculate cell geometry
Returns
A newly created CellView widget.
Creates a new CellView widget, adds a CellRendererText
to it, and makes it show markup. The text can be marked up with
the Pango text markup language.
markup
the text to display in the cell view
Returns
A newly created CellView widget.
Creates a new CellView widget, adds a CellRendererText
to it, and makes it show text.
text
the text to display in the cell view
Returns
A newly created CellView widget.
Creates a new CellView widget, adds a CellRendererPixbuf
to it, and makes it show texture.
texture
the image to display in the cell view
Returns
A newly created CellView widget.
Creates a new builder-pattern struct instance to construct CellView objects.
This method returns an instance of CellViewBuilder which can be used to create CellView objects.
Gets whether self is configured to draw all of its
cells in a sensitive state.
Returns
whether self draws all of its
cells in a sensitive state
Sets the row of the model that is currently displayed
by the CellView. If the path is unset, then the
contents of the cellview “stick” at their last value;
this is not normally a desired result, but may be
a needed intermediate state if say, the model for
the CellView becomes temporarily empty.
path
Sets whether self should draw all of its
cells in a sensitive state, this is used by ComboBox menus
to ensure that rows with insensitive cells that contain
children appear sensitive in the parent menu item.
draw_sensitive
whether to draw all cells in a sensitive state.
The CellArea rendering cells
If no area is specified when creating the cell view with with_context()
a horizontally oriented CellAreaBox will be used.
since 3.0
The CellAreaContext used to compute the geometry of the cell view.
A group of cell views can be assigned the same context in order to ensure the sizes and cell alignments match across all the views with the same context.
ComboBox menus uses this to assign the same context to all cell views
in the menu items for a single menu (each submenu creates its own
context since the size of each submenu does not depend on parent
or sibling menus).
since 3.0
Trait Implementations
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 CellView
impl UnwindSafe for CellView
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.