UnaryBoundFunctionSupport.java
- /*
- * *************************************************************************************************************************************************************
- *
- * SteelBlue: DCI User Interfaces
- * http://tidalwave.it/projects/steelblue
- *
- * Copyright (C) 2015 - 2025 by Tidalwave s.a.s. (http://tidalwave.it)
- *
- * *************************************************************************************************************************************************************
- *
- * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
- * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
- *
- * *************************************************************************************************************************************************************
- *
- * git clone https://bitbucket.org/tidalwave/steelblue-src
- * git clone https://github.com/tidalwave-it/steelblue-src
- *
- * *************************************************************************************************************************************************************
- */
- package it.tidalwave.ui.function;
- import jakarta.annotation.Nonnull;
- import it.tidalwave.ui.core.ChangingSource;
- /***************************************************************************************************************************************************************
- *
- * @since 2.0-ALPHA-1
- * @author Fabrizio Giudici
- *
- **************************************************************************************************************************************************************/
- public abstract class UnaryBoundFunctionSupport<DOMAIN_TYPE, CODOMAIN_TYPE>
- extends BoundFunctionSupport<DOMAIN_TYPE, CODOMAIN_TYPE>
- {
- @Nonnull
- protected final ChangingSource<DOMAIN_TYPE> source;
- protected CODOMAIN_TYPE value;
- protected UnaryBoundFunctionSupport (@Nonnull final ChangingSource<DOMAIN_TYPE> source)
- {
- this.source = source;
- source.addPropertyChangeListener(event ->
- onSourceChange((DOMAIN_TYPE)event.getOldValue(), (DOMAIN_TYPE)event.getNewValue()));
- }
- protected void onSourceChange (@Nonnull final DOMAIN_TYPE oldSourceValue, @Nonnull final DOMAIN_TYPE newSourceValue)
- {
- final var oldValue = function(oldSourceValue);
- value = function(newSourceValue);
- fireValueChanged(oldValue, value);
- }
- @Nonnull
- protected abstract CODOMAIN_TYPE function (final DOMAIN_TYPE value);
- @Override @Nonnull
- public final CODOMAIN_TYPE get()
- {
- return value;
- }
- }