Trait gtk::prelude::EditableSignals [−][src]
pub trait EditableSignals: 'static {
fn connect_changed<F>(&self, changed_func: F) -> SignalHandlerId
where
F: Fn(&Self) + 'static;
fn connect_delete_text<F>(&self, delete_text_func: F) -> SignalHandlerId
where
F: Fn(&Self, i32, i32) + 'static;
fn connect_insert_text<F>(&self, insert_text_func: F) -> SignalHandlerId
where
F: Fn(&Self, &str, &mut i32) + 'static;
}Required methods
fn connect_changed<F>(&self, changed_func: F) -> SignalHandlerId where
F: Fn(&Self) + 'static,
fn connect_changed<F>(&self, changed_func: F) -> SignalHandlerId where
F: Fn(&Self) + 'static, The ::changed signal is emitted at the end of a single
user-visible operation on the contents of the Editable.
E.g., a paste operation that replaces the contents of the selection will cause only one signal emission (even though it is implemented by first deleting the selection, then inserting the new content, and may cause multiple ::notify::text signals to be emitted).
fn connect_delete_text<F>(&self, delete_text_func: F) -> SignalHandlerId where
F: Fn(&Self, i32, i32) + 'static,
fn connect_delete_text<F>(&self, delete_text_func: F) -> SignalHandlerId where
F: Fn(&Self, i32, i32) + 'static, This signal is emitted when text is deleted from
the widget by the user. The default handler for
this signal will normally be responsible for deleting
the text, so by connecting to this signal and then
stopping the signal with g_signal_stop_emission(), it
is possible to modify the range of deleted text, or
prevent it from being deleted entirely. The start_pos
and end_pos parameters are interpreted as for
EditableExt::delete_text().
start_pos
the starting position
end_pos
the end position
fn connect_insert_text<F>(&self, insert_text_func: F) -> SignalHandlerId where
F: Fn(&Self, &str, &mut i32) + 'static,
fn connect_insert_text<F>(&self, insert_text_func: F) -> SignalHandlerId where
F: Fn(&Self, &str, &mut i32) + 'static, This signal is emitted when text is inserted into
the widget by the user. The default handler for
this signal will normally be responsible for inserting
the text, so by connecting to this signal and then
stopping the signal with g_signal_stop_emission(), it
is possible to modify the inserted text, or prevent
it from being inserted entirely.
new_text
the new text to insert
new_text_length
the length of the new text, in bytes, or -1 if new_text is nul-terminated
position
the position, in characters, at which to insert the new text. this is an in-out parameter. After the signal emission is finished, it should point after the newly inserted text.