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/*
* This file is licensed under the MIT License, part of Roughly Enough Items.
* Copyright (c) 2018, 2019, 2020 shedaniel
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package me.shedaniel.rei.impl;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import me.shedaniel.math.api.Rectangle;
import me.shedaniel.rei.api.BaseBoundsHandler;
import me.shedaniel.rei.api.DisplayHelper;
import me.shedaniel.rei.api.OverlayDecider;
import me.shedaniel.rei.utils.CollectionUtils;
import org.jetbrains.annotations.ApiStatus;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map;
@ApiStatus.Internal
public class DisplayHelperImpl implements DisplayHelper {
private static final Comparator<OverlayDecider> BOUNDS_HANDLER_COMPARATOR;
private static final DisplayBoundsHandler<Object> EMPTY = new DisplayBoundsHandler<Object>() {
@Override
public Class<Object> getBaseSupportedClass() {
return null;
}
@Override
public Rectangle getLeftBounds(Object screen) {
return new Rectangle();
}
@Override
public Rectangle getRightBounds(Object screen) {
return new Rectangle();
}
@Override
public float getPriority() {
return -10f;
}
};
static {
Comparator<OverlayDecider> comparator = Comparator.comparingDouble(OverlayDecider::getPriority);
BOUNDS_HANDLER_COMPARATOR = comparator.reversed();
}
private List<OverlayDecider> screenDisplayBoundsHandlers = Lists.newArrayList();
private Map<Class<?>, DisplayBoundsHandler<?>> handlerCache = Maps.newHashMap();
private Map<Class<?>, List<DisplayBoundsHandler<?>>> handlerSortedCache = Maps.newHashMap();
private BaseBoundsHandler baseBoundsHandler;
private Class<?> tempScreen;
@SuppressWarnings("rawtypes")
@Override
public List<DisplayBoundsHandler<?>> getSortedBoundsHandlers(Class<?> screenClass) {
List<DisplayBoundsHandler<?>> possibleCached = handlerSortedCache.get(screenClass);
if (possibleCached != null)
return possibleCached;
tempScreen = screenClass;
handlerSortedCache.put(screenClass, (List) CollectionUtils.castAndMap(CollectionUtils.filter(screenDisplayBoundsHandlers, this::filterResponsible), DisplayBoundsHandler.class));
return handlerSortedCache.get(screenClass);
}
@Override
public List<OverlayDecider> getAllOverlayDeciders() {
return Collections.unmodifiableList(screenDisplayBoundsHandlers);
}
@Override
public DisplayBoundsHandler<?> getResponsibleBoundsHandler(Class<?> screenClass) {
DisplayBoundsHandler<?> possibleCached = handlerCache.get(screenClass);
if (possibleCached != null)
return possibleCached;
List<DisplayBoundsHandler<?>> handlers = getSortedBoundsHandlers(screenClass);
handlerCache.put(screenClass, handlers.isEmpty() ? EMPTY : handlers.get(0));
return handlerCache.get(screenClass);
}
private boolean filterResponsible(OverlayDecider handler) {
return handler.isHandingScreen(tempScreen);
}
@Override
public void registerHandler(OverlayDecider decider) {
screenDisplayBoundsHandlers.add(decider);
screenDisplayBoundsHandlers.sort(BOUNDS_HANDLER_COMPARATOR);
}
@Override
public BaseBoundsHandler getBaseBoundsHandler() {
return baseBoundsHandler;
}
@ApiStatus.Internal
public void setBaseBoundsHandler(BaseBoundsHandler baseBoundsHandler) {
this.baseBoundsHandler = baseBoundsHandler;
}
@ApiStatus.Internal
public void resetData() {
screenDisplayBoundsHandlers.clear();
}
@ApiStatus.Internal
public void resetCache() {
handlerCache.clear();
handlerSortedCache.clear();
}
}
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