Package ch.bailu.gtk.gtk

Interface TreeView.OnTreeViewColumnDropFunc

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.OnTreeViewColumnDropFunc

Method Summary

Modifier and Type	Method	Description
boolean	onTreeViewColumnDropFunc(CallbackHandler __self, TreeView tree_view, TreeViewColumn column, TreeViewColumn prev_column, TreeViewColumn next_column, Pointer data)	Function type for determining whether @column can be dropped in a particular spot (as determined by @prev_column and @next_column).

Method Details

onTreeViewColumnDropFunc

boolean onTreeViewColumnDropFunc(CallbackHandler __self,
 @Nonnull
 TreeView tree_view,
 @Nonnull
 TreeViewColumn column,
 @Nonnull
 TreeViewColumn prev_column,
 @Nonnull
 TreeViewColumn next_column,
 @Nullable
 Pointer data)

Function type for determining whether @column can be dropped in a
particular spot (as determined by @prev_column and @next_column). In
left to right locales, @prev_column is on the left of the potential drop
spot, and @next_column is on the right. In right to left mode, this is
reversed. This function should return %TRUE if the spot is a valid drop
spot. Please note that returning %TRUE does not actually indicate that
the column drop was made, but is meant only to indicate a possible drop
spot to the user.

Parameters:

tree_view - A `GtkTreeView`

column - The `GtkTreeViewColumn` being dragged

prev_column - A `GtkTreeViewColumn` on one side of @column

next_column - A `GtkTreeViewColumn` on the other side of @column

data - user data

Returns:

%TRUE, if @column can be dropped in this spot