Examples with Binding org.terasology.nui.databinding.Binding used on opensource projects

Example 6 with Binding

use of org.terasology.nui.databinding.Binding in project Terasology by MovingBlocks.

the class SubtypeLayoutBuilder method populate.

@Override
protected void populate(Binding<T> binding, ColumnLayout layout, ColumnLayout mainLayout) {
    ColumnLayout widgetContainer = new ColumnLayout();
    Binding<TypeInfo<T>> editingType = new NotifyingBinding<TypeInfo<T>>(baseType) {

        @Override
        protected void onSet() {
            widgetContainer.removeAllWidgets();
            TypeWidgetBuilder<T> builder = SubtypeLayoutBuilder.this.library.getBuilder(get()).orElse(baseTypeWidgetBuilder);
            if (builder == null) {
                LOGGER.error("Could not find widget for type {}, editing as base type {}", get(), baseType);
                return;
            }
            widgetContainer.addWidget(builder.build(binding));
        }
    };
    if (binding.get() != null && !editingType.get().getRawType().equals(binding.get().getClass())) {
        Type actual = ReflectionUtil.parameterizeandResolveRawType(baseType.getType(), binding.get().getClass());
        TypeInfo<T> actualType = (TypeInfo<T>) TypeInfo.of(actual);
        if (!allowedSubtypes.contains(actualType)) {
            Optional<TypeInfo<T>> closestMatch = allowedSubtypes.stream().filter(subtype -> subtype.getRawType().isAssignableFrom(actualType.getRawType())).findFirst();
            // closestMatch is always present since editingType is guaranteed to be a subtype of T
            assert closestMatch.isPresent();
            editingType.set(closestMatch.get());
        } else {
            editingType.set(actualType);
        }
    }
    UIDropdownScrollable<TypeInfo<T>> typeSelection = new UIDropdownScrollable<>();
    typeSelection.setOptions(allowedSubtypes);
    typeSelection.bindSelection(editingType);
    typeSelection.setOptionRenderer(new StringTextRenderer<TypeInfo<T>>() {

        @Override
        public String getString(TypeInfo<T> value) {
            return getTypeName(value);
        }
    });
    // TODO: Translate
    typeSelection.setTooltip("Select the type for the new object");
    layout.addWidget(typeSelection);
    layout.addWidget(widgetContainer);
}