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Encapsulated snap_to_ports

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This commit is contained in:
KOKI 2022-08-12 18:24:54 +09:00
parent b97a567eb7
commit a11c6c623d
2 changed files with 39 additions and 31 deletions
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58
egui_node_graph/src/editor_ui.rs
View File

@ -176,38 +176,34 @@ where
let port_type = self.graph.any_param_type(*locator).unwrap();
let connection_color = port_type.data_type_color(&self.user_state);
let start_pos = port_locations[locator];
// Find a port to connect to
fn snap_to_ports<Key: slotmap::Key + Into<AnyParameterId>, Value>(
ports: &SlotMap<Key, Value>,
port_locations: &PortLocations,
cursor_pos: Pos2,
) -> Pos2 {
ports
.iter()
.find_map(|(port_id, _)| {
let port_pos = port_locations[&port_id.into()];
if port_pos.distance(cursor_pos) < DISTANCE_TO_CONNECT {
Some(port_pos)
} else {
None
}
})
.unwrap_or(cursor_pos)
}
let (src_pos, dst_pos) = match locator {
AnyParameterId::Output(_) => {
// Find a port to connect to
let port = self.graph.inputs.iter().find_map(|(input_id, _)| {
let port_pos = port_locations[&AnyParameterId::Input(input_id)];
if port_pos.distance(cursor_pos) < DISTANCE_TO_CONNECT {
Some(port_pos)
} else {
None
}
});
if let Some(port_pos) = port {
(start_pos, port_pos)
} else {
(start_pos, cursor_pos)
}
}
AnyParameterId::Input(_) => {
let port = self.graph.outputs.iter().find_map(|(output_id, _)| {
let port_pos = port_locations[&AnyParameterId::Output(output_id)];
if port_pos.distance(cursor_pos) < DISTANCE_TO_CONNECT {
Some(port_pos)
} else {
None
}
});
if let Some(port_pos) = port {
(port_pos, start_pos)
} else {
(cursor_pos, start_pos)
}
}
AnyParameterId::Output(_) => (
start_pos,
snap_to_ports(&self.graph.inputs, &port_locations, cursor_pos),
),
AnyParameterId::Input(_) => (
snap_to_ports(&self.graph.outputs, &port_locations, cursor_pos),
start_pos,
),
};
draw_connection(ui.painter(), src_pos, dst_pos, connection_color);
}

12
egui_node_graph/src/id_type.rs
View File

@ -23,3 +23,15 @@ impl AnyParameterId {
}
}
}
impl From<OutputId> for AnyParameterId {
fn from(output: OutputId) -> Self {
Self::Output(output)
}
}
impl From<InputId> for AnyParameterId {
fn from(input: InputId) -> Self {
Self::Input(input)
}
}