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Add NodeDataTrait::output_ui

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This method draws the UI for each of the outputs corresponding to the
node. Defaults to the label that was the previous hard-coded behavior.
The default impl also means this isn't a breaking change.
This commit is contained in:
Kamil Koczurek 2023-05-07 18:25:06 +02:00
parent 3336daa78f
commit e92b934268
2 changed files with 25 additions and 1 deletions
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7
egui_node_graph/src/editor_ui.rs
View File

@ -610,7 +610,12 @@ where
let outputs = self.graph[self.node_id].outputs.clone();
for (param_name, _param) in outputs {
let height_before = ui.min_rect().bottom();
ui.label(&param_name);
responses.extend(
self.graph[self.node_id]
.user_data
.output_ui(ui, self.node_id, self.graph, user_state, &param_name)
.into_iter(),
);
let height_after = ui.min_rect().bottom();
output_port_heights.push((height_before + height_after) / 2.0);
}

19
egui_node_graph/src/traits.rs
View File

@ -127,6 +127,25 @@ where
Default::default()
}
/// UI to draw for each output
///
/// Defaults to showing param_name as a simple label.
fn output_ui(
&self,
ui: &mut egui::Ui,
_node_id: NodeId,
_graph: &Graph<Self, Self::DataType, Self::ValueType>,
_user_state: &mut Self::UserState,
param_name: &str,
) -> Vec<NodeResponse<Self::Response, Self>>
where
Self::Response: UserResponseTrait,
{
ui.label(param_name);
Default::default()
}
/// Set background color on titlebar
/// If the return value is None, the default color is set.
fn titlebar_color(