#[repr(transparent)]pub struct ListStore { /* private fields */ }
Expand description
Use Gio::ListStore
instead
A list-like data structure that can be used with the TreeView
.
The ListStore
object is a list model for use with a TreeView
widget. It implements the TreeModel
interface, and consequentialy,
can use all of the methods available there. It also implements the
TreeSortable
interface so it can be sorted by the view.
Finally, it also implements the tree
drag and drop
interfaces.
The ListStore
can accept most GType
s as a column type, though
it can’t accept all custom types. Internally, it will keep a copy of
data passed in (such as a string or a boxed pointer). Columns that
accept GObject
s are handled a little differently. The
ListStore
will keep a reference to the object instead of copying the
value. As a result, if the object is modified, it is up to the
application writer to call TreeModelExt::row_changed()
to emit the
row_changed
signal. This most commonly affects lists
with gdk::Texture
s stored.
An example for creating a simple list store:
⚠️ The following code is in c ⚠️
enum {
COLUMN_STRING,
COLUMN_INT,
COLUMN_BOOLEAN,
N_COLUMNS
};
{
GtkListStore *list_store;
GtkTreePath *path;
GtkTreeIter iter;
int i;
list_store = gtk_list_store_new (N_COLUMNS,
G_TYPE_STRING,
G_TYPE_INT,
G_TYPE_BOOLEAN);
for (i = 0; i < 10; i++)
{
char *some_data;
some_data = get_some_data (i);
// Add a new row to the model
gtk_list_store_append (list_store, &iter);
gtk_list_store_set (list_store, &iter,
COLUMN_STRING, some_data,
COLUMN_INT, i,
COLUMN_BOOLEAN, FALSE,
-1);
// As the store will keep a copy of the string internally,
// we free some_data.
g_free (some_data);
}
// Modify a particular row
path = gtk_tree_path_new_from_string ("4");
gtk_tree_model_get_iter (GTK_TREE_MODEL (list_store),
&iter,
path);
gtk_tree_path_free (path);
gtk_list_store_set (list_store, &iter,
COLUMN_BOOLEAN, TRUE,
-1);
}
ListStore
is deprecated since GTK 4.10, and should not be used in newly
written code. You should use Gio::ListStore
instead, and the various
list models provided by GTK.
Performance Considerations
Internally, the ListStore
was originally implemented with a linked list
with a tail pointer. As a result, it was fast at data insertion and deletion,
and not fast at random data access. The ListStore
sets the
GTK_TREE_MODEL_ITERS_PERSIST
flag, which means that TreeIter
s can be
cached while the row exists. Thus, if access to a particular row is needed
often and your code is expected to run on older versions of GTK, it is worth
keeping the iter around.
Atomic Operations
It is important to note that only the methods
gtk_list_store_insert_with_values() and gtk_list_store_insert_with_valuesv()
are atomic, in the sense that the row is being appended to the store and the
values filled in in a single operation with regard to TreeModel
signaling.
In contrast, using e.g. gtk_list_store_append() and then gtk_list_store_set()
will first create a row, which triggers the GtkTreeModel::row-inserted
signal
on ListStore
. The row, however, is still empty, and any signal handler
connecting to GtkTreeModel::row-inserted
on this particular store should be prepared
for the situation that the row might be empty. This is especially important
if you are wrapping the ListStore
inside a TreeModel
Filter and are
using a TreeModel
FilterVisibleFunc. Using any of the non-atomic operations
to append rows to the ListStore
will cause the
TreeModel
FilterVisibleFunc to be visited with an empty row first; the
function must be prepared for that.
GtkListStore as GtkBuildable
The GtkListStore implementation of the Buildable
interface allows
to specify the model columns with a <columns>
element that may contain
multiple <column>
elements, each specifying one model column. The “type”
attribute specifies the data type for the column.
Additionally, it is possible to specify content for the list store
in the UI definition, with the <data>
element. It can contain multiple
<row>
elements, each specifying to content for one row of the list model.
Inside a <row>
, the <col>
elements specify the content for individual cells.
Note that it is probably more common to define your models in the code, and one might consider it a layering violation to specify the content of a list store in a UI definition, data, not presentation, and common wisdom is to separate the two, as far as possible.
An example of a UI Definition fragment for a list store:
<object class="GtkListStore">
<columns>
<column type="gchararray"/>
<column type="gchararray"/>
<column type="gint"/>
</columns>
<data>
<row>
<col id="0">John</col>
<col id="1">Doe</col>
<col id="2">25</col>
</row>
<row>
<col id="0">Johan</col>
<col id="1">Dahlin</col>
<col id="2">50</col>
</row>
</data>
</object>
Implements
glib::ObjectExt
, BuildableExt
, TreeDragDestExt
, TreeDragSourceExt
, TreeModelExt
, TreeSortableExt
, TreeModelExtManual
, TreeSortableExtManual
Implementations§
source§impl ListStore
impl ListStore
sourcepub fn append(&self) -> TreeIter
pub fn append(&self) -> TreeIter
Appends a new row to @self. @iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
Deprecated since 4.10
Use list models
Returns
iter
An unset TreeIter
to set to the appended row
sourcepub fn insert(&self, position: i32) -> TreeIter
pub fn insert(&self, position: i32) -> TreeIter
Creates a new row at @position. @iter will be changed to point to this new row. If @position is -1 or is larger than the number of rows on the list, then the new row will be appended to the list. The row will be empty after this function is called. To fill in values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
Deprecated since 4.10
Use list models
position
position to insert the new row, or -1 for last
Returns
iter
An unset TreeIter
to set to the new row
sourcepub fn insert_after(&self, sibling: Option<&TreeIter>) -> TreeIter
pub fn insert_after(&self, sibling: Option<&TreeIter>) -> TreeIter
Inserts a new row after @sibling. If @sibling is None
, then the row will be
prepended to the beginning of the list. @iter will be changed to point to
this new row. The row will be empty after this function is called. To fill
in values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
Deprecated since 4.10
Use list models
sibling
A valid TreeIter
Returns
iter
An unset TreeIter
to set to the new row
sourcepub fn insert_before(&self, sibling: Option<&TreeIter>) -> TreeIter
pub fn insert_before(&self, sibling: Option<&TreeIter>) -> TreeIter
Inserts a new row before @sibling. If @sibling is None
, then the row will
be appended to the end of the list. @iter will be changed to point to this
new row. The row will be empty after this function is called. To fill in
values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
Deprecated since 4.10
Use list models
sibling
A valid TreeIter
Returns
iter
An unset TreeIter
to set to the new row
sourcepub fn iter_is_valid(&self, iter: &TreeIter) -> bool
pub fn iter_is_valid(&self, iter: &TreeIter) -> bool
sourcepub fn move_after(&self, iter: &TreeIter, position: Option<&TreeIter>)
pub fn move_after(&self, iter: &TreeIter, position: Option<&TreeIter>)
sourcepub fn move_before(&self, iter: &TreeIter, position: Option<&TreeIter>)
pub fn move_before(&self, iter: &TreeIter, position: Option<&TreeIter>)
sourcepub fn prepend(&self) -> TreeIter
pub fn prepend(&self) -> TreeIter
Prepends a new row to @self. @iter will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_list_store_set() or gtk_list_store_set_value().
Deprecated since 4.10
Use list models
Returns
iter
An unset TreeIter
to set to the prepend row
source§impl ListStore
impl ListStore
sourcepub fn new(column_types: &[Type]) -> Self
pub fn new(column_types: &[Type]) -> Self
Creates a new list store.
The list store will have @n_columns columns, with each column using the given type passed to this function.
Note that only types derived from standard GObject fundamental types are supported.
As an example:
⚠️ The following code is in c ⚠️
gtk_list_store_new (3, G_TYPE_INT, G_TYPE_STRING, GDK_TYPE_TEXTURE);
will create a new ListStore
with three columns, of type int
,
gchararray
and gdk::Texture
, respectively.
Deprecated since 4.10
Use Gio::ListStore
instead
Returns
a new ListStore
sourcepub fn insert_with_values(
&self,
position: Option<u32>,
columns_and_values: &[(u32, &dyn ToValue)]
) -> TreeIter
pub fn insert_with_values( &self, position: Option<u32>, columns_and_values: &[(u32, &dyn ToValue)] ) -> TreeIter
A variant of gtk_list_store_insert_with_values() which takes the columns and values as two arrays, instead of varargs.
This function is mainly intended for language-bindings.
Deprecated since 4.10
Use list models
position
position to insert the new row, or -1 for last
columns
an array of column numbers
values
an array of GValues
Returns
iter
An unset TreeIter
to set to the new row
sourcepub fn reorder(&self, new_order: &[u32])
pub fn reorder(&self, new_order: &[u32])
Reorders @self to follow the order indicated by @new_order. Note that this function only works with unsorted stores.
Deprecated since 4.10
Use list models
new_order
an array of integers mapping the new
position of each child to its old position before the re-ordering,
i.e. @new_order[newpos] = oldpos
. It must have
exactly as many items as the list store’s length.
sourcepub fn set(&self, iter: &TreeIter, columns_and_values: &[(u32, &dyn ToValue)])
pub fn set(&self, iter: &TreeIter, columns_and_values: &[(u32, &dyn ToValue)])
Sets 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 the value to be set.
The list is terminated by a -1. For example, to set column 0 with type
G_TYPE_STRING
to “Foo”, you would write gtk_list_store_set (store, iter, 0, "Foo", -1)
.
The value will be referenced by the store if it is a G_TYPE_OBJECT
, and it
will be copied if it is a G_TYPE_STRING
or G_TYPE_BOXED
.
Deprecated since 4.10
Use list models
iter
row iterator
sourcepub fn set_column_types(&self, types: &[Type])
pub fn set_column_types(&self, types: &[Type])
Sets the types of the columns of a list store.
This function is meant primarily for objects that inherit
from ListStore
, and should only be used when constructing
a new instance.
This function cannot be called after a row has been added, or
a method on the TreeModel
interface is called.
Deprecated since 4.10
Use list models
types
An array length n of GType
s
sourcepub fn set_value(&self, iter: &TreeIter, column: u32, value: &Value)
pub fn set_value(&self, iter: &TreeIter, column: u32, value: &Value)
Sets the data in the cell specified by @iter and @column. The type of @value must be convertible to the type of the column.
Deprecated since 4.10
Use list models
iter
A valid TreeIter
for the row being modified
column
column number to modify
value
new value for the cell
Trait Implementations§
source§impl HasParamSpec for ListStore
impl HasParamSpec for ListStore
source§impl Ord for ListStore
impl Ord for ListStore
source§impl<OT: ObjectType> PartialEq<OT> for ListStore
impl<OT: ObjectType> PartialEq<OT> for ListStore
source§impl<OT: ObjectType> PartialOrd<OT> for ListStore
impl<OT: ObjectType> PartialOrd<OT> for ListStore
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
self
and other
) and is used by the <=
operator. Read moresource§impl StaticType for ListStore
impl StaticType for ListStore
source§fn static_type() -> Type
fn static_type() -> Type
Self
.impl Eq for ListStore
impl IsA<Buildable> for ListStore
impl IsA<TreeDragDest> for ListStore
impl IsA<TreeDragSource> for ListStore
impl IsA<TreeModel> for ListStore
impl IsA<TreeSortable> for ListStore
Auto Trait Implementations§
impl RefUnwindSafe for ListStore
impl !Send for ListStore
impl !Sync for ListStore
impl Unpin for ListStore
impl UnwindSafe for ListStore
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callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
signal_name
on this object. Read moresource§fn connect_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
fn connect_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + Send + Sync + 'static,
signal_id
on this object. Read moresource§fn connect_local<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
signal_name
on this object. Read moresource§fn connect_local_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value> + 'static,
fn connect_local_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value> + 'static,
signal_id
on this object. Read moresource§unsafe fn connect_unsafe<F>(
&self,
signal_name: &str,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe<F>( &self, signal_name: &str, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
signal_name
on this object. Read moresource§unsafe fn connect_unsafe_id<F>(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
callback: F
) -> SignalHandlerIdwhere
F: Fn(&[Value]) -> Option<Value>,
unsafe fn connect_unsafe_id<F>( &self, signal_id: SignalId, details: Option<Quark>, after: bool, callback: F ) -> SignalHandlerIdwhere F: Fn(&[Value]) -> Option<Value>,
signal_id
on this object. Read moresource§fn connect_closure(
&self,
signal_name: &str,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure( &self, signal_name: &str, after: bool, closure: RustClosure ) -> SignalHandlerId
signal_name
on this object. Read moresource§fn connect_closure_id(
&self,
signal_id: SignalId,
details: Option<Quark>,
after: bool,
closure: RustClosure
) -> SignalHandlerId
fn connect_closure_id( &self, signal_id: SignalId, details: Option<Quark>, after: bool, closure: RustClosure ) -> SignalHandlerId
signal_id
on this object. Read moresource§fn watch_closure(&self, closure: &impl AsRef<Closure>)
fn watch_closure(&self, closure: &impl AsRef<Closure>)
closure
to the lifetime of the object. When
the object’s reference count drops to zero, the closure will be
invalidated. An invalidated closure will ignore any calls to
invoke_with_values
, or
invoke
when using Rust closures.source§fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit<R>(&self, signal_id: SignalId, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
fn emit_with_values(&self, signal_id: SignalId, args: &[Value]) -> Option<Value>
Self::emit
but takes Value
for the arguments.source§fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name<R>(&self, signal_name: &str, args: &[&dyn ToValue]) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_by_name_with_values(
&self,
signal_name: &str,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_values( &self, signal_name: &str, args: &[Value] ) -> Option<Value>
source§fn emit_by_name_with_details<R>(
&self,
signal_name: &str,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_by_name_with_details<R>( &self, signal_name: &str, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_by_name_with_details_and_values(
&self,
signal_name: &str,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_by_name_with_details_and_values( &self, signal_name: &str, details: Quark, args: &[Value] ) -> Option<Value>
source§fn emit_with_details<R>(
&self,
signal_id: SignalId,
details: Quark,
args: &[&dyn ToValue]
) -> Rwhere
R: TryFromClosureReturnValue,
fn emit_with_details<R>( &self, signal_id: SignalId, details: Quark, args: &[&dyn ToValue] ) -> Rwhere R: TryFromClosureReturnValue,
source§fn emit_with_details_and_values(
&self,
signal_id: SignalId,
details: Quark,
args: &[Value]
) -> Option<Value>
fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>
source§fn disconnect(&self, handler_id: SignalHandlerId)
fn disconnect(&self, handler_id: SignalHandlerId)
source§fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,
notify
signal of the object. Read moresource§fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec) + 'static,
fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,
notify
signal of the object. Read moresource§unsafe fn connect_notify_unsafe<F>(
&self,
name: Option<&str>,
f: F
) -> SignalHandlerIdwhere
F: Fn(&T, &ParamSpec),
unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),
notify
signal of the object. Read more