addProperty<T> method
Function to add a property to properties panel.
To add a property could extend Property or create a property with an anonymous property widget builder with Property.withBuilder
Implementation
T addProperty<T>(Property<T> property) {
if (properties.containsKey(property.name)) {
return properties[property.name]!.getValue() as T;
} else {
properties[property.name] = property;
return property.getValue();
}
}