Struct gtk4::Grid [−][src]
pub struct Grid(_);
Expand description
Grid
is a container which arranges its child widgets in
rows and columns.
It supports arbitrary positions and horizontal/vertical spans.
Children are added using GridExt::attach()
. They can span multiple
rows or columns. It is also possible to add a child next to an existing
child, using GridExt::attach_next_to()
. To remove a child from the
grid, use GridExt::remove()
.
The behaviour of Grid
when several children occupy the same grid
cell is undefined.
GtkGrid as GtkBuildable
Every child in a Grid
has access to a custom Buildable
element, called <layout>
. It can by used to specify a position in the
grid and optionally spans. All properties that can be used in the <layout>
element are implemented by GridLayoutChild
.
It is implemented by Widget
using LayoutManager
.
To showcase it, here is a simple example:
<object class="GtkGrid" id="my_grid">
<child>
<object class="GtkButton" id="button1">
<property name="label">Button 1</property>
<layout>
<property name="column">0</property>
<property name="row">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkButton" id="button2">
<property name="label">Button 2</property>
<layout>
<property name="column">1</property>
<property name="row">0</property>
</layout>
</object>
</child>
<child>
<object class="GtkButton" id="button3">
<property name="label">Button 3</property>
<layout>
<property name="column">2</property>
<property name="row">0</property>
<property name="row-span">2</property>
</layout>
</object>
</child>
<child>
<object class="GtkButton" id="button4">
<property name="label">Button 4</property>
<layout>
<property name="column">0</property>
<property name="row">1</property>
<property name="column-span">2</property>
</layout>
</object>
</child>
</object>
It organizes the first two buttons side-by-side in one cell each.
The third button is in the last column but spans across two rows.
This is defined by the row-span
property. The last button is
located in the second row and spans across two columns, which is
defined by the column-span
property.
CSS nodes
Grid
uses a single CSS node with name grid
.
Accessibility
Grid
uses the AccessibleRole::Group
role.
Implements
GridExt
, WidgetExt
, glib::ObjectExt
, AccessibleExt
, BuildableExt
, ConstraintTargetExt
, OrientableExt
, WidgetExtManual
, AccessibleExtManual
Implementations
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 Grid
impl UnwindSafe for Grid
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
.