Trait gtk::TreeDragSourceExt

pub trait TreeDragSourceExt: 'static {
    fn drag_data_delete(&self, path: &mut TreePath) -> bool;
    fn drag_data_get(
        &self, 
        path: &mut TreePath, 
        selection_data: &mut SelectionData
    ) -> bool;
    fn row_draggable(&self, path: &mut TreePath) -> bool;
}

Trait containing all TreeDragSource methods.

Implementors

ListStore, TreeDragSource, TreeModelFilter, TreeModelSort, TreeStore

Required methods

fn drag_data_delete(&self, path: &mut TreePath) -> bool

Asks the TreeDragSource to delete the row at path, because it was moved somewhere else via drag-and-drop. Returns false if the deletion fails because path no longer exists, or for some model-specific reason. Should robustly handle a path no longer found in the model!

path

row that was being dragged

Returns

true if the row was successfully deleted

fn drag_data_get(
    &self,
    path: &mut TreePath,
    selection_data: &mut SelectionData
) -> bool

Asks the TreeDragSource to fill in selection_data with a representation of the row at path. selection_data->target gives the required type of the data. Should robustly handle a path no longer found in the model!

path

row that was dragged

selection_data

a SelectionData to fill with data from the dragged row

Returns

true if data of the required type was provided

fn row_draggable(&self, path: &mut TreePath) -> bool

Asks the TreeDragSource whether a particular row can be used as the source of a DND operation. If the source doesn’t implement this interface, the row is assumed draggable.

path

row on which user is initiating a drag

Returns

true if the row can be dragged

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Implementors

impl<O: IsA<TreeDragSource>> TreeDragSourceExt for O

fn drag_data_delete(&self, path: &mut TreePath) -> bool

fn drag_data_get(
    &self,
    path: &mut TreePath,
    selection_data: &mut SelectionData
) -> bool

fn row_draggable(&self, path: &mut TreePath) -> bool

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