+++ /dev/null
-/*
- * This file is part of lanterna (http://code.google.com/p/lanterna/).
- *
- * lanterna is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * Copyright (C) 2010-2015 Martin
- */
-package com.googlecode.lanterna.gui2;
-
-import com.googlecode.lanterna.TerminalPosition;
-import com.googlecode.lanterna.input.KeyStroke;
-
-import java.util.Collection;
-import java.util.Collections;
-
-/**
- * This abstract implementation contains common code for the different {@code Composite} implementations. A
- * {@code Composite} component is one that encapsulates a single component, like borders. Because of this, a
- * {@code Composite} can be seen as a special case of a {@code Container} and indeed this abstract class does in fact
- * implement the {@code Container} interface as well, to make the composites easier to work with internally.
- * @author martin
- * @param <T> Should always be itself, see {@code AbstractComponent}
- */
-public abstract class AbstractComposite<T extends Container> extends AbstractComponent<T> implements Composite, Container {
-
- private Component component;
-
- /**
- * Default constructor
- */
- public AbstractComposite() {
- component = null;
- }
-
- @Override
- public void setComponent(Component component) {
- Component oldComponent = this.component;
- if(oldComponent == component) {
- return;
- }
- if(oldComponent != null) {
- removeComponent(oldComponent);
- }
- if(component != null) {
- this.component = component;
- component.onAdded(this);
- component.setPosition(TerminalPosition.TOP_LEFT_CORNER);
- invalidate();
- }
- }
-
- @Override
- public Component getComponent() {
- return component;
- }
-
- @Override
- public int getChildCount() {
- return component != null ? 1 : 0;
- }
-
- @Override
- public Collection<Component> getChildren() {
- if(component != null) {
- return Collections.singletonList(component);
- }
- else {
- return Collections.emptyList();
- }
- }
-
- @Override
- public boolean containsComponent(Component component) {
- return component != null && component.hasParent(this);
- }
-
- @Override
- public boolean removeComponent(Component component) {
- if(this.component == component) {
- this.component = null;
- component.onRemoved(this);
- invalidate();
- return true;
- }
- return false;
- }
-
- @Override
- public boolean isInvalid() {
- return component != null && component.isInvalid();
- }
-
- @Override
- public void invalidate() {
- super.invalidate();
-
- //Propagate
- if(component != null) {
- component.invalidate();
- }
- }
-
- @Override
- public Interactable nextFocus(Interactable fromThis) {
- if(fromThis == null && getComponent() instanceof Interactable) {
- return (Interactable)getComponent();
- }
- else if(getComponent() instanceof Container) {
- return ((Container)getComponent()).nextFocus(fromThis);
- }
- return null;
- }
-
- @Override
- public Interactable previousFocus(Interactable fromThis) {
- if(fromThis == null && getComponent() instanceof Interactable) {
- return (Interactable)getComponent();
- }
- else if(getComponent() instanceof Container) {
- return ((Container)getComponent()).previousFocus(fromThis);
- }
- return null;
- }
-
- @Override
- public boolean handleInput(KeyStroke key) {
- return false;
- }
-
- @Override
- public void updateLookupMap(InteractableLookupMap interactableLookupMap) {
- if(getComponent() instanceof Container) {
- ((Container)getComponent()).updateLookupMap(interactableLookupMap);
- }
- else if(getComponent() instanceof Interactable) {
- interactableLookupMap.add((Interactable)getComponent());
- }
- }
-}