Package ch.bailu.gtk.gtk

Interface TreeView.OnMoveCursor

Enclosing class:

TreeView

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface TreeView.OnMoveCursor

Method Summary

Modifier and Type	Method	Description
boolean	onMoveCursor(int step, int direction, boolean extend, boolean modify)	The `GtkTreeView`::move-cursor signal is a [keybinding signal][class@Gtk.SignalAction] which gets emitted when the user presses one of the cursor keys.

Method Details

onMoveCursor

boolean onMoveCursor(int step,
 int direction,
 boolean extend,
 boolean modify)

The `GtkTreeView`::move-cursor signal is a [keybinding
signal][class@Gtk.SignalAction] which gets emitted when the user
presses one of the cursor keys.

Applications should not connect to it, but may emit it with
g_signal_emit_by_name() if they need to control the cursor
programmatically. In contrast to gtk_tree_view_set_cursor() and
gtk_tree_view_set_cursor_on_cell() when moving horizontally
`GtkTreeView`::move-cursor does not reset the current selection.

Parameters:

step - the granularity of the move, as a `GtkMovementStep`. %GTK_MOVEMENT_LOGICAL_POSITIONS, %GTK_MOVEMENT_VISUAL_POSITIONS, %GTK_MOVEMENT_DISPLAY_LINES, %GTK_MOVEMENT_PAGES and %GTK_MOVEMENT_BUFFER_ENDS are supported. %GTK_MOVEMENT_LOGICAL_POSITIONS and %GTK_MOVEMENT_VISUAL_POSITIONS are treated identically.

direction - the direction to move: +1 to move forwards; -1 to move backwards. The resulting movement is undefined for all other values.

extend - whether to extend the selection

modify - whether to modify the selection

Returns:

%TRUE if @step is supported, %FALSE otherwise.