Trait gtk::ListBoxExt

pub trait ListBoxExt: 'static {
    fn bind_model<P: IsA<ListModel>, Q: Fn(&Object) -> Widget + 'static>(
        &self, 
        model: Option<&P>, 
        create_widget_func: Q
    );
    fn drag_highlight_row<P: IsA<ListBoxRow>>(&self, row: &P);
    fn drag_unhighlight_row(&self);
    fn get_activate_on_single_click(&self) -> bool;
    fn get_adjustment(&self) -> Option<Adjustment>;
    fn get_row_at_index(&self, index_: i32) -> Option<ListBoxRow>;
    fn get_row_at_y(&self, y: i32) -> Option<ListBoxRow>;
    fn get_selected_row(&self) -> Option<ListBoxRow>;
    fn get_selected_rows(&self) -> Vec<ListBoxRow>;
    fn get_selection_mode(&self) -> SelectionMode;
    fn insert<P: IsA<Widget>>(&self, child: &P, position: i32);
    fn invalidate_filter(&self);
    fn invalidate_headers(&self);
    fn invalidate_sort(&self);
    fn prepend<P: IsA<Widget>>(&self, child: &P);
    fn select_all(&self);
    fn select_row<P: IsA<ListBoxRow>>(&self, row: Option<&P>);
    fn selected_foreach<P: FnMut(&ListBox, &ListBoxRow)>(&self, func: P);
    fn set_activate_on_single_click(&self, single: bool);
    fn set_adjustment<P: IsA<Adjustment>>(&self, adjustment: Option<&P>);
    fn set_filter_func(
        &self, 
        filter_func: Option<Box_<dyn Fn(&ListBoxRow) -> bool + 'static>>
    );
    fn set_header_func(
        &self, 
        update_header: Option<Box_<dyn Fn(&ListBoxRow, Option<&ListBoxRow>) + 'static>>
    );
    fn set_placeholder<P: IsA<Widget>>(&self, placeholder: Option<&P>);
    fn set_selection_mode(&self, mode: SelectionMode);
    fn set_sort_func(
        &self, 
        sort_func: Option<Box_<dyn Fn(&ListBoxRow, &ListBoxRow) -> i32 + 'static>>
    );
    fn unselect_all(&self);
    fn unselect_row<P: IsA<ListBoxRow>>(&self, row: &P);
    fn connect_activate_cursor_row<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn emit_activate_cursor_row(&self);
    fn connect_move_cursor<F: Fn(&Self, MovementStep, i32) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn emit_move_cursor(&self, object: MovementStep, p0: i32);
    fn connect_row_activated<F: Fn(&Self, &ListBoxRow) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_row_selected<F: Fn(&Self, Option<&ListBoxRow>) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_select_all<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn emit_select_all(&self);
    fn connect_selected_rows_changed<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_toggle_cursor_row<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn emit_toggle_cursor_row(&self);
    fn connect_unselect_all<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn emit_unselect_all(&self);
    fn connect_property_activate_on_single_click_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
    fn connect_property_selection_mode_notify<F: Fn(&Self) + 'static>(
        &self, 
        f: F
    ) -> SignalHandlerId;
}

Trait containing all ListBox methods.

Implementors

ListBox

Required methods

fn bind_model<P: IsA<ListModel>, Q: Fn(&Object) -> Widget + 'static>(
    &self,
    model: Option<&P>,
    create_widget_func: Q
)

Binds model to self.

If self was already bound to a model, that previous binding is destroyed.

The contents of self are cleared and then filled with widgets that represent items from model. self is updated whenever model changes. If model is None, self is left empty.

It is undefined to add or remove widgets directly (for example, with ListBoxExt::insert or ContainerExt::add) while self is bound to a model.

Note that using a model is incompatible with the filtering and sorting functionality in ListBox. When using a model, filtering and sorting should be implemented by the model.

Feature: v3_16

model

the gio::ListModel to be bound to self

create_widget_func

a function that creates widgets for items or None in case you also passed None as model

user_data

user data passed to create_widget_func

user_data_free_func

function for freeing user_data

fn drag_highlight_row<P: IsA<ListBoxRow>>(&self, row: &P)

This is a helper function for implementing DnD onto a ListBox. The passed in row will be highlighted via WidgetExt::drag_highlight, and any previously highlighted row will be unhighlighted.

The row will also be unhighlighted when the widget gets a drag leave event.

row

a ListBoxRow

fn drag_unhighlight_row(&self)

If a row has previously been highlighted via ListBoxExt::drag_highlight_row it will have the highlight removed.

fn get_activate_on_single_click(&self) -> bool

Returns whether rows activate on single clicks.

Returns

true if rows are activated on single click, false otherwise

fn get_adjustment(&self) -> Option<Adjustment>

Gets the adjustment (if any) that the widget uses to for vertical scrolling.

Returns

the adjustment

fn get_row_at_index(&self, index_: i32) -> Option<ListBoxRow>

Gets the n-th child in the list (not counting headers). If _index is negative or larger than the number of items in the list, None is returned.

index_

the index of the row

Returns

the child Widget or None

fn get_row_at_y(&self, y: i32) -> Option<ListBoxRow>

Gets the row at the y position.

y

position

Returns

the row or None in case no row exists for the given y coordinate.

fn get_selected_row(&self) -> Option<ListBoxRow>

Gets the selected row.

Note that the box may allow multiple selection, in which case you should use ListBoxExt::selected_foreach to find all selected rows.

Returns

the selected row

fn get_selected_rows(&self) -> Vec<ListBoxRow>

Creates a list of all selected children.

Returns

A glib::List containing the Widget for each selected child. Free with glib::List::free when done.

fn get_selection_mode(&self) -> SelectionMode

Gets the selection mode of the listbox.

Returns

a SelectionMode

fn insert<P: IsA<Widget>>(&self, child: &P, position: i32)

Insert the child into the self at position. If a sort function is set, the widget will actually be inserted at the calculated position and this function has the same effect of ContainerExt::add.

If position is -1, or larger than the total number of items in the self, then the child will be appended to the end.

child

the Widget to add

position

the position to insert child in

fn invalidate_filter(&self)

Update the filtering for all rows. Call this when result of the filter function on the self is changed due to an external factor. For instance, this would be used if the filter function just looked for a specific search string and the entry with the search string has changed.

fn invalidate_headers(&self)

Update the separators for all rows. Call this when result of the header function on the self is changed due to an external factor.

fn invalidate_sort(&self)

Update the sorting for all rows. Call this when result of the sort function on the self is changed due to an external factor.

fn prepend<P: IsA<Widget>>(&self, child: &P)

Prepend a widget to the list. If a sort function is set, the widget will actually be inserted at the calculated position and this function has the same effect of ContainerExt::add.

child

the Widget to add

fn select_all(&self)

Select all children of self, if the selection mode allows it.

fn select_row<P: IsA<ListBoxRow>>(&self, row: Option<&P>)

Make row the currently selected row.

row

The row to select or None

fn selected_foreach<P: FnMut(&ListBox, &ListBoxRow)>(&self, func: P)

Calls a function for each selected child.

Note that the selection cannot be modified from within this function.

func

the function to call for each selected child

data

user data to pass to the function

fn set_activate_on_single_click(&self, single: bool)

If single is true, rows will be activated when you click on them, otherwise you need to double-click.

single

a boolean

fn set_adjustment<P: IsA<Adjustment>>(&self, adjustment: Option<&P>)

Sets the adjustment (if any) that the widget uses to for vertical scrolling. For instance, this is used to get the page size for PageUp/Down key handling.

In the normal case when the self is packed inside a ScrolledWindow the adjustment from that will be picked up automatically, so there is no need to manually do that.

adjustment

the adjustment, or None

fn set_filter_func(
    &self,
    filter_func: Option<Box_<dyn Fn(&ListBoxRow) -> bool + 'static>>
)

By setting a filter function on the self one can decide dynamically which of the rows to show. For instance, to implement a search function on a list that filters the original list to only show the matching rows.

The filter_func will be called for each row after the call, and it will continue to be called each time a row changes (via ListBoxRowExt::changed) or when ListBoxExt::invalidate_filter is called.

Note that using a filter function is incompatible with using a model (see ListBoxExt::bind_model).

filter_func

callback that lets you filter which rows to show

user_data

user data passed to filter_func

destroy

destroy notifier for user_data

fn set_header_func(
    &self,
    update_header: Option<Box_<dyn Fn(&ListBoxRow, Option<&ListBoxRow>) + 'static>>
)

By setting a header function on the self one can dynamically add headers in front of rows, depending on the contents of the row and its position in the list. For instance, one could use it to add headers in front of the first item of a new kind, in a list sorted by the kind.

The update_header can look at the current header widget using ListBoxRowExt::get_header and either update the state of the widget as needed, or set a new one using ListBoxRowExt::set_header. If no header is needed, set the header to None.

Note that you may get many calls update_header to this for a particular row when e.g. changing things that don’t affect the header. In this case it is important for performance to not blindly replace an existing header with an identical one.

The update_header function will be called for each row after the call, and it will continue to be called each time a row changes (via ListBoxRowExt::changed) and when the row before changes (either by ListBoxRowExt::changed on the previous row, or when the previous row becomes a different row). It is also called for all rows when ListBoxExt::invalidate_headers is called.

update_header

callback that lets you add row headers

user_data

user data passed to update_header

destroy

destroy notifier for user_data

fn set_placeholder<P: IsA<Widget>>(&self, placeholder: Option<&P>)

Sets the placeholder widget that is shown in the list when it doesn't display any visible children.

placeholder

a Widget or None

fn set_selection_mode(&self, mode: SelectionMode)

Sets how selection works in the listbox. See SelectionMode for details.

mode

The SelectionMode

fn set_sort_func(
    &self,
    sort_func: Option<Box_<dyn Fn(&ListBoxRow, &ListBoxRow) -> i32 + 'static>>
)

By setting a sort function on the self one can dynamically reorder the rows of the list, based on the contents of the rows.

The sort_func will be called for each row after the call, and will continue to be called each time a row changes (via ListBoxRowExt::changed) and when ListBoxExt::invalidate_sort is called.

Note that using a sort function is incompatible with using a model (see ListBoxExt::bind_model).

sort_func

the sort function

user_data

user data passed to sort_func

destroy

destroy notifier for user_data

fn unselect_all(&self)

Unselect all children of self, if the selection mode allows it.

fn unselect_row<P: IsA<ListBoxRow>>(&self, row: &P)

Unselects a single row of self, if the selection mode allows it.

row

the row to unselected

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

fn emit_activate_cursor_row(&self)

fn connect_move_cursor<F: Fn(&Self, MovementStep, i32) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

fn emit_move_cursor(&self, object: MovementStep, p0: i32)

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

The ::row-activated signal is emitted when a row has been activated by the user.

row

the activated row

fn connect_row_selected<F: Fn(&Self, Option<&ListBoxRow>) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

The ::row-selected signal is emitted when a new row is selected, or (with a None row) when the selection is cleared.

When the box_ is using SelectionMode::Multiple, this signal will not give you the full picture of selection changes, and you should use the ListBox::selected-rows-changed signal instead.

row

the selected row

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

The ::select-all signal is a [keybinding signal][BindingSignal] which gets emitted to select all children of the box, if the selection mode permits it.

The default bindings for this signal is Ctrl-a.

fn emit_select_all(&self)

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

The ::selected-rows-changed signal is emitted when the set of selected rows changes.

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

fn emit_toggle_cursor_row(&self)

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

The ::unselect-all signal is a [keybinding signal][BindingSignal] which gets emitted to unselect all children of the box, if the selection mode permits it.

The default bindings for this signal is Ctrl-Shift-a.

fn emit_unselect_all(&self)

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

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

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Implementors

impl<O: IsA<ListBox>> ListBoxExt for O

fn bind_model<P: IsA<ListModel>, Q: Fn(&Object) -> Widget + 'static>(
    &self,
    model: Option<&P>,
    create_widget_func: Q
)

fn drag_highlight_row<P: IsA<ListBoxRow>>(&self, row: &P)

fn drag_unhighlight_row(&self)

fn get_activate_on_single_click(&self) -> bool

fn get_adjustment(&self) -> Option<Adjustment>

fn get_row_at_index(&self, index_: i32) -> Option<ListBoxRow>

fn get_row_at_y(&self, y: i32) -> Option<ListBoxRow>

fn get_selected_row(&self) -> Option<ListBoxRow>

fn get_selected_rows(&self) -> Vec<ListBoxRow>

fn get_selection_mode(&self) -> SelectionMode

fn insert<P: IsA<Widget>>(&self, child: &P, position: i32)

fn invalidate_filter(&self)

fn invalidate_headers(&self)

fn invalidate_sort(&self)

fn prepend<P: IsA<Widget>>(&self, child: &P)

fn select_all(&self)

fn select_row<P: IsA<ListBoxRow>>(&self, row: Option<&P>)

fn selected_foreach<P: FnMut(&ListBox, &ListBoxRow)>(&self, func: P)

fn set_activate_on_single_click(&self, single: bool)

fn set_adjustment<P: IsA<Adjustment>>(&self, adjustment: Option<&P>)

fn set_filter_func(
    &self,
    filter_func: Option<Box_<dyn Fn(&ListBoxRow) -> bool + 'static>>
)

fn set_header_func(
    &self,
    update_header: Option<Box_<dyn Fn(&ListBoxRow, Option<&ListBoxRow>) + 'static>>
)

fn set_placeholder<P: IsA<Widget>>(&self, placeholder: Option<&P>)

fn set_selection_mode(&self, mode: SelectionMode)

fn set_sort_func(
    &self,
    sort_func: Option<Box_<dyn Fn(&ListBoxRow, &ListBoxRow) -> i32 + 'static>>
)

fn unselect_all(&self)

fn unselect_row<P: IsA<ListBoxRow>>(&self, row: &P)

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

fn emit_activate_cursor_row(&self)

fn connect_move_cursor<F: Fn(&Self, MovementStep, i32) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

fn emit_move_cursor(&self, object: MovementStep, p0: i32)

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

fn connect_row_selected<F: Fn(&Self, Option<&ListBoxRow>) + 'static>(
    &self,
    f: F
) -> SignalHandlerId

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

fn emit_select_all(&self)

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

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

fn emit_toggle_cursor_row(&self)

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

fn emit_unselect_all(&self)

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

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

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