Trait gtk4::prelude::TreeModelExtManual
source · pub trait TreeModelExtManual: 'static {
// Required methods
fn get_value(&self, iter: &TreeIter, column: i32) -> Value;
fn get<V: for<'b> FromValue<'b> + 'static>(
&self,
iter: &TreeIter,
column: i32
) -> V;
}
Expand description
Trait containing manually implemented methods of TreeModel
.
Required Methods§
fn get_value(&self, iter: &TreeIter, column: i32) -> Value
sourcefn get<V: for<'b> FromValue<'b> + 'static>(
&self,
iter: &TreeIter,
column: i32
) -> V
fn get<V: for<'b> FromValue<'b> + 'static>( &self, iter: &TreeIter, column: i32 ) -> V
Similar to Self::get_value
but panics if the value is of a different type.
Gets the value of one or more cells in the row referenced by @iter.
The variable argument list should contain integer column numbers,
each column number followed by a place to store the value being
retrieved. The list is terminated by a -1. For example, to get a
value from column 0 with type G_TYPE_STRING
, you would
write: gtk_tree_model_get (model, iter, 0, &place_string_here, -1)
,
where place_string_here
is a #gchararray
to be filled with the string.
Returned values with type G_TYPE_OBJECT
have to be unreferenced,
values with type G_TYPE_STRING
or G_TYPE_BOXED
have to be freed.
Other values are passed by value.
Deprecated since 4.10
iter
a row in @self