Trait gtk::prelude::SizeGroupExt
source · [−]pub trait SizeGroupExt: 'static {
fn add_widget(&self, widget: &impl IsA<Widget>);
fn ignores_hidden(&self) -> bool;
fn mode(&self) -> SizeGroupMode;
fn widgets(&self) -> Vec<Widget>;
fn remove_widget(&self, widget: &impl IsA<Widget>);
fn set_ignore_hidden(&self, ignore_hidden: bool);
fn set_mode(&self, mode: SizeGroupMode);
fn connect_ignore_hidden_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId;
fn connect_mode_notify<F: Fn(&Self) + 'static>(
&self,
f: F
) -> SignalHandlerId;
}
Expand description
Required Methods
fn add_widget(&self, widget: &impl IsA<Widget>)
fn add_widget(&self, widget: &impl IsA<Widget>)
Adds a widget to a SizeGroup
. In the future, the requisition
of the widget will be determined as the maximum of its requisition
and the requisition of the other widgets in the size group.
Whether this applies horizontally, vertically, or in both directions
depends on the mode of the size group. See set_mode()
.
When the widget is destroyed or no longer referenced elsewhere, it will be removed from the size group.
widget
the Widget
to add
Returns if invisible widgets are ignored when calculating the size.
Deprecated since 3.22
Measuring the size of hidden widgets has not worked
reliably for a long time. In most cases, they will report a size
of 0 nowadays, and thus, their size will not affect the other
size group members. In effect, size groups will always operate
as if this property was true
. Use a Stack
instead to hide
widgets while still having their size taken into account.
Returns
true
if invisible widgets are ignored.
fn mode(&self) -> SizeGroupMode
fn mode(&self) -> SizeGroupMode
Gets the current mode of the size group. See set_mode()
.
Returns
the current mode of the size group.
Returns the list of widgets associated with self
.
Returns
a GSList
of
widgets. The list is owned by GTK+ and should not be modified.
fn remove_widget(&self, widget: &impl IsA<Widget>)
fn remove_widget(&self, widget: &impl IsA<Widget>)
Sets whether unmapped widgets should be ignored when calculating the size.
Deprecated since 3.22
Measuring the size of hidden widgets has not worked
reliably for a long time. In most cases, they will report a size
of 0 nowadays, and thus, their size will not affect the other
size group members. In effect, size groups will always operate
as if this property was true
. Use a Stack
instead to hide
widgets while still having their size taken into account.
ignore_hidden
whether unmapped widgets should be ignored when calculating the size
fn set_mode(&self, mode: SizeGroupMode)
fn set_mode(&self, mode: SizeGroupMode)
Sets the SizeGroupMode
of the size group. The mode of the size
group determines whether the widgets in the size group should
all have the same horizontal requisition (SizeGroupMode::Horizontal
)
all have the same vertical requisition (SizeGroupMode::Vertical
),
or should all have the same requisition in both directions
(SizeGroupMode::Both
).
mode
the mode to set for the size group.