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Fix a crash bug when deleting an active node

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This commit is contained in:
nekomehako 2022-05-11 01:56:34 +09:00
parent 8408503866
commit b81479cc88
1 changed files with 15 additions and 11 deletions
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26
egui_node_graph_example/src/app.rs
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@ -376,17 +376,21 @@ impl epi::App for NodeGraphExample {
} }
if let Some(node) = self.state.user_state.active_node { if let Some(node) = self.state.user_state.active_node {
let text = match evaluate_node(&self.state.graph, node, &mut HashMap::new()) { if self.state.graph.nodes.contains_key(node) {
Ok(value) => format!("The result is: {:?}", value), let text = match evaluate_node(&self.state.graph, node, &mut HashMap::new()) {
Err(err) => format!("Execution error: {}", err), Ok(value) => format!("The result is: {:?}", value),
}; Err(err) => format!("Execution error: {}", err),
ctx.debug_painter().text( };
egui::pos2(10.0, 10.0), ctx.debug_painter().text(
egui::Align2::LEFT_TOP, egui::pos2(10.0, 10.0),
text, egui::Align2::LEFT_TOP,
egui::TextStyle::Button, text,
egui::Color32::WHITE, egui::TextStyle::Button,
); egui::Color32::WHITE,
);
} else {
self.state.user_state.active_node = None;
}
} }
} }
} }