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Send disconnect event on node delete

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This commit is contained in:
setzer22 2022-05-29 18:35:30 +02:00
parent c6c517644a
commit aecb0f5031
2 changed files with 18 additions and 6 deletions
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12
egui_node_graph/src/editor_ui.rs
View File

@ -168,6 +168,10 @@ where
/* Handle responses from drawing nodes */
// Some responses generate additional responses when processed. These
// are stored here to report them back to the user.
let mut extra_responses : Vec<NodeResponse<UserResponse>> = Vec::new();
for response in delayed_responses.iter().copied() {
match response {
NodeResponse::ConnectEventStarted(node_id, port) => {
@ -199,7 +203,8 @@ where
self.selected_node = Some(node_id);
}
NodeResponse::DeleteNode(node_id) => {
self.graph.remove_node(node_id);
let (ins, _) = self.graph.remove_node(node_id);
extra_responses.extend(ins.into_iter().map(NodeResponse::DisconnectEvent));
self.node_positions.remove(node_id);
// Make sure to not leave references to old nodes hanging
if self.selected_node.map(|x| x == node_id).unwrap_or(false) {
@ -232,6 +237,11 @@ where
}
}
// Push any responses that were generated during response handling.
// These are only informative for the end-user and need no special
// treatment here.
delayed_responses.extend(extra_responses);
/* Mouse input handling */
// This locks the context, so don't hold on to it for too long.

12
egui_node_graph/src/graph_impls.rs
View File

@ -63,18 +63,20 @@ impl<NodeData, DataType, ValueType> Graph<NodeData, DataType, ValueType> {
output_id
}
pub fn remove_node(&mut self, node_id: NodeId) {
/// Returns the list of input and output ids that were disconnected.
pub fn remove_node(&mut self, node_id: NodeId) -> (SVec<InputId>, SVec<OutputId>) {
self.connections
.retain(|i, o| !(self.outputs[*o].node == node_id || self.inputs[i].node == node_id));
let inputs: SVec<_> = self[node_id].input_ids().collect();
for input in inputs {
self.inputs.remove(input);
for input in &inputs {
self.inputs.remove(*input);
}
let outputs: SVec<_> = self[node_id].output_ids().collect();
for output in outputs {
self.outputs.remove(output);
for output in &outputs {
self.outputs.remove(*output);
}
self.nodes.remove(node_id);
(inputs, outputs)
}
pub fn remove_connection(&mut self, input_id: InputId) -> Option<OutputId> {