Struct gtk4::TreeSelection

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#[repr(transparent)]
pub struct TreeSelection { /* private fields */ }
Expand description

Use SelectionModel instead The selection object for GtkTreeView

The TreeSelection object is a helper object to manage the selection for a TreeView widget. The TreeSelection object is automatically created when a new TreeView widget is created, and cannot exist independently of this widget. The primary reason the TreeSelection objects exists is for cleanliness of code and API. That is, there is no conceptual reason all these functions could not be methods on the TreeView widget instead of a separate function.

The TreeSelection object is gotten from a TreeView by calling gtk_tree_view_get_selection(). It can be manipulated to check the selection status of the tree, as well as select and deselect individual rows. Selection is done completely view side. As a result, multiple views of the same model can have completely different selections. Additionally, you cannot change the selection of a row on the model that is not currently displayed by the view without expanding its parents first.

One of the important things to remember when monitoring the selection of a view is that the TreeSelection::changed signal is mostly a hint. That is, it may only emit one signal when a range of rows is selected. Additionally, it may on occasion emit a TreeSelection::changed signal when nothing has happened (mostly as a result of programmers calling select_row on an already selected row).

Properties

mode

Selection mode. See gtk_tree_selection_set_mode() for more information on this property.

Readable | Writeable

Signals

changed

Emitted whenever the selection has (possibly) changed. Please note that this signal is mostly a hint. It may only be emitted once when a range of rows are selected, and it may occasionally be emitted when nothing has happened.

Implements

glib::ObjectExt

Implementations§

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impl TreeSelection

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pub fn count_selected_rows(&self) -> i32

Returns the number of rows that have been selected in @tree.

Deprecated since 4.10

Use GtkListView or GtkColumnView

Returns

The number of rows selected.

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pub fn mode(&self) -> SelectionMode

Gets the selection mode for @self. See gtk_tree_selection_set_mode().

Deprecated since 4.10

Use GtkListView or GtkColumnView

Returns

the current selection mode

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pub fn selected(&self) -> Option<(TreeModel, TreeIter)>

Sets @iter to the currently selected node if @self is set to SelectionMode::Single or SelectionMode::Browse. @iter may be NULL if you just want to test if @self has any selected nodes. @model is filled with the current model as a convenience. This function will not work if you use @self is SelectionMode::Multiple.

Deprecated since 4.10

Use GtkListView or GtkColumnView

Returns

TRUE, if there is a selected node.

model

A pointer to set to the TreeModel

iter

The TreeIter

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pub fn selected_rows(&self) -> (Vec<TreePath>, TreeModel)

Creates a list of path of all selected rows. Additionally, if you are planning on modifying the model after calling this function, you may want to convert the returned list into a list of TreeRowReferences. To do this, you can use gtk_tree_row_reference_new().

To free the return value, use:

⚠️ The following code is in C ⚠️

g_list_free_full (list, (GDestroyNotify) gtk_tree_path_free);
Deprecated since 4.10

Use GtkListView or GtkColumnView

Returns

A GList containing a TreePath for each selected row.

model

A pointer to set to the TreeModel

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pub fn tree_view(&self) -> TreeView

Returns the tree view associated with @self.

Deprecated since 4.10

Use GtkListView or GtkColumnView

Returns

A TreeView

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pub fn iter_is_selected(&self, iter: &TreeIter) -> bool

Returns true if the row at @iter is currently selected.

Deprecated since 4.10

Use GtkListView or GtkColumnView

iter

A valid TreeIter

Returns

true, if @iter is selected

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pub fn path_is_selected(&self, path: &TreePath) -> bool

Returns true if the row pointed to by @path is currently selected. If @path does not point to a valid location, false is returned

Deprecated since 4.10

Use GtkListView or GtkColumnView

path

A TreePath to check selection on.

Returns

true if @path is selected.

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pub fn select_all(&self)

Selects all the nodes. @self must be set to SelectionMode::Multiple mode.

Deprecated since 4.10

Use GtkListView or GtkColumnView

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pub fn select_iter(&self, iter: &TreeIter)

Selects the specified iterator.

Deprecated since 4.10

Use GtkListView or GtkColumnView

iter

The TreeIter to be selected.

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pub fn select_path(&self, path: &TreePath)

Select the row at @path.

Deprecated since 4.10

Use GtkListView or GtkColumnView

path

The TreePath to be selected.

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pub fn select_range(&self, start_path: &TreePath, end_path: &TreePath)

Selects a range of nodes, determined by @start_path and @end_path inclusive. @self must be set to SelectionMode::Multiple mode.

Deprecated since 4.10

Use GtkListView or GtkColumnView

start_path

The initial node of the range.

end_path

The final node of the range.

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pub fn selected_foreach<P: FnMut(&TreeModel, &TreePath, &TreeIter)>( &self, func: P )

Calls a function for each selected node. Note that you cannot modify the tree or selection from within this function. As a result, gtk_tree_selection_get_selected_rows() might be more useful.

Deprecated since 4.10

Use GtkListView or GtkColumnView

func

The function to call for each selected node.

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pub fn set_mode(&self, type_: SelectionMode)

Sets the selection mode of the @self. If the previous type was SelectionMode::Multiple, then the anchor is kept selected, if it was previously selected.

Deprecated since 4.10

Use GtkListView or GtkColumnView

type_

The selection mode

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pub fn set_select_function<P: Fn(&TreeSelection, &TreeModel, &TreePath, bool) -> bool + 'static>( &self, func: P )

Sets the selection function.

If set, this function is called before any node is selected or unselected, giving some control over which nodes are selected. The select function should return true if the state of the node may be toggled, and false if the state of the node should be left unchanged.

Deprecated since 4.10

Use GtkListView or GtkColumnView

func

The selection function. May be None

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pub fn unselect_all(&self)

Unselects all the nodes.

Deprecated since 4.10

Use GtkListView or GtkColumnView

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pub fn unselect_iter(&self, iter: &TreeIter)

Unselects the specified iterator.

Deprecated since 4.10

Use GtkListView or GtkColumnView

iter

The TreeIter to be unselected.

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pub fn unselect_path(&self, path: &TreePath)

Unselects the row at @path.

Deprecated since 4.10

Use GtkListView or GtkColumnView

path

The TreePath to be unselected.

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pub fn unselect_range(&self, start_path: &TreePath, end_path: &TreePath)

Unselects a range of nodes, determined by @start_path and @end_path inclusive.

Deprecated since 4.10

Use GtkListView or GtkColumnView

start_path

The initial node of the range.

end_path

The initial node of the range.

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pub fn connect_changed<F: Fn(&Self) + 'static>(&self, f: F) -> SignalHandlerId

Emitted whenever the selection has (possibly) changed. Please note that this signal is mostly a hint. It may only be emitted once when a range of rows are selected, and it may occasionally be emitted when nothing has happened.

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pub fn connect_mode_notify<F: Fn(&Self) + 'static>( &self, f: F ) -> SignalHandlerId

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impl TreeSelection

Trait Implementations§

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impl Clone for TreeSelection

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fn clone(&self) -> Self

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for TreeSelection

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for TreeSelection

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl HasParamSpec for TreeSelection

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type ParamSpec = ParamSpecObject

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type SetValue = TreeSelection

Preferred value to be used as setter for the associated ParamSpec.
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type BuilderFn = fn(_: &str) -> ParamSpecObjectBuilder<'_, TreeSelection>

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fn param_spec_builder() -> Self::BuilderFn

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impl Hash for TreeSelection

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fn hash<H>(&self, state: &mut H)where H: Hasher,

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for TreeSelection

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fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl ParentClassIs for TreeSelection

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impl<OT: ObjectType> PartialEq<OT> for TreeSelection

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fn eq(&self, other: &OT) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<OT: ObjectType> PartialOrd<OT> for TreeSelection

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fn partial_cmp(&self, other: &OT) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StaticType for TreeSelection

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fn static_type() -> Type

Returns the type identifier of Self.
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impl Eq for TreeSelection

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Immutably borrows from an owned value. Read more
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Returns the argument unchanged.

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GList, num: usize ) -> Vec<T, Global>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GPtrArray, num: usize ) -> Vec<T, Global>

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impl<T> FromGlibContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_container_num_as_vec( ptr: *mut GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_num_as_vec( ptr: *mut GSList, num: usize ) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(_: *const GPtrArray) -> Vec<T, Global>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *const GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_container_as_vec(ptr: *mut GList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GList) -> Vec<T, Global>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GPtrArray> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_full_as_vec(ptr: *mut GPtrArray) -> Vec<T, Global>

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impl<T> FromGlibPtrArrayContainerAsVec<<T as GlibPtrDefault>::GlibType, *mut GSList> for Twhere T: GlibPtrDefault + FromGlibPtrNone<<T as GlibPtrDefault>::GlibType> + FromGlibPtrFull<<T as GlibPtrDefault>::GlibType>,

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unsafe fn from_glib_none_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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unsafe fn from_glib_container_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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unsafe fn from_glib_full_as_vec(ptr: *mut GSList) -> Vec<T, Global>

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Calls U::from(self).

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Sets the property property_name of the object to value value. Read more
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Get the ParamSpec of the property property_name of this object.
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Return all ParamSpec of the properties of this object.
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Connect to the signal signal_id on this object. Read more
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Connect to the signal signal_name on this object. Read more
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Connect to the signal signal_id on this object. Read more
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fn emit_with_details_and_values( &self, signal_id: SignalId, details: Quark, args: &[Value] ) -> Option<Value>

Emit signal by signal id with details. Read more
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fn disconnect(&self, handler_id: SignalHandlerId)

Disconnect a previously connected signal handler.
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fn connect_notify<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + Send + Sync + 'static,

Connect to the notify signal of the object. Read more
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fn connect_notify_local<F>(&self, name: Option<&str>, f: F) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec) + 'static,

Connect to the notify signal of the object. Read more
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unsafe fn connect_notify_unsafe<F>( &self, name: Option<&str>, f: F ) -> SignalHandlerIdwhere F: Fn(&T, &ParamSpec),

Connect to the notify signal of the object. Read more
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fn notify(&self, property_name: &str)

Notify that the given property has changed its value. Read more
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fn notify_by_pspec(&self, pspec: &ParamSpec)

Notify that the given property has changed its value. Read more
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fn downgrade(&self) -> WeakRef<T>

Downgrade this object to a weak reference.
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fn add_weak_ref_notify<F>(&self, f: F) -> WeakRefNotify<T>where F: FnOnce() + Send + 'static,

Add a callback to be notified when the Object is disposed.
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fn add_weak_ref_notify_local<F>(&self, f: F) -> WeakRefNotify<T>where F: FnOnce() + 'static,

Add a callback to be notified when the Object is disposed. Read more
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fn bind_property<'f, 't, O, 'a>( &'a self, source_property: &'a str, target: &'a O, target_property: &'a str ) -> BindingBuilder<'a, 'f, 't>where O: ObjectType,

Bind property source_property on this object to the target_property on the target object. Read more
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fn ref_count(&self) -> u32

Returns the strong reference count of this object.
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unsafe fn run_dispose(&self)

Runs the dispose mechanism of the object. Read more
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impl<T> Property for Twhere T: HasParamSpec,

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type Value = T

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impl<T> PropertyGet for Twhere T: HasParamSpec,

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type Value = T

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fn get<R, F>(&self, f: F) -> Rwhere F: Fn(&<T as PropertyGet>::Value) -> R,

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impl<T> StaticTypeExt for Twhere T: StaticType,

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fn ensure_type()

Ensures that the type has been registered with the type system.
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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T> ToString for Twhere T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. Read more
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impl<T> TransparentType for Twhere T: TransparentPtrType,

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impl<T, U> TryFrom<U> for Twhere U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T> TryFromClosureReturnValue for Twhere T: for<'a> FromValue<'a> + StaticType + 'static,

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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<Super, Sub> CanDowncast<Sub> for Superwhere Super: IsA<Super>, Sub: IsA<Super>,

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impl<'a, T, C, E> FromValueOptional<'a> for Twhere T: FromValue<'a, Checker = C>, C: ValueTypeChecker<Error = ValueTypeMismatchOrNoneError<E>>, E: Error + Send + 'static,