1 files changed, 110 insertions, 0 deletions
diff --git a/src/main/java/me/shedaniel/rei/impl/BaseBoundsHandlerImpl.java b/src/main/java/me/shedaniel/rei/impl/BaseBoundsHandlerImpl.java
new file mode 100644
index 000000000..7ac55b5f9
--- /dev/null
+++ b/src/main/java/me/shedaniel/rei/impl/BaseBoundsHandlerImpl.java
@@ -0,0 +1,110 @@
+/*
+ * Roughly Enough Items by Danielshe.
+ * Licensed under the MIT License.
+ */
+
+package me.shedaniel.rei.impl;
+
+import com.google.common.collect.Lists;
+import me.shedaniel.rei.RoughlyEnoughItemsCore;
+import me.shedaniel.rei.api.BaseBoundsHandler;
+import me.shedaniel.rei.api.DisplayHelper;
+import net.minecraft.client.MinecraftClient;
+import net.minecraft.client.gui.screen.Screen;
+import net.minecraft.util.ActionResult;
+import net.minecraft.util.Pair;
+
+import java.awt.*;
+import java.util.Comparator;
+import java.util.List;
+import java.util.function.Function;
+import java.util.stream.Collectors;
+
+public class BaseBoundsHandlerImpl implements BaseBoundsHandler {
+    
+    private static final Function<Rectangle, Long> RECTANGLE_LONG_FUNCTION = r -> r.x + 1000l * r.y + 1000000l * r.width + 1000000000l * r.height;
+    private static final Comparator<Pair<Pair<Class<?>, Float>, Function<Boolean, List<Rectangle>>>> LIST_PAIR_COMPARATOR;
+    
+    static {
+        Comparator<Pair<Pair<Class<?>, Float>, Function<Boolean, List<Rectangle>>>> comparator = Comparator.comparingDouble(value -> value.getLeft().getRight());
+        LIST_PAIR_COMPARATOR = comparator.reversed();
+    }
+    
+    private long lastArea = -1;
+    private List<Pair<Pair<Class<?>, Float>, Function<Boolean, List<Rectangle>>>> list = Lists.newArrayList();
+    
+    @Override
+    public Class<?> getBaseSupportedClass() {
+        return Screen.class;
+    }
+    
+    @Override
+    public Rectangle getLeftBounds(Screen screen) {
+        return new Rectangle();
+    }
+    
+    @Override
+    public Rectangle getRightBounds(Screen screen) {
+        return new Rectangle();
+    }
+    
+    @Override
+    public float getPriority() {
+        return -5f;
+    }
+    
+    @Override
+    public ActionResult isInZone(boolean isOnRightSide, double mouseX, double mouseY) {
+        for (Rectangle zone : getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide))
+            if (zone.contains(mouseX, mouseY))
+                return ActionResult.FAIL;
+        return ActionResult.PASS;
+    }
+    
+    @Override
+    public boolean shouldRecalculateArea(boolean isOnRightSide, Rectangle rectangle) {
+        long current = getStringFromCurrent(isOnRightSide);
+        if (lastArea == current)
+            return false;
+        lastArea = current;
+        return true;
+    }
+    
+    private DisplayHelper.DisplayBoundsHandler getHandler() {
+        return RoughlyEnoughItemsCore.getDisplayHelper().getResponsibleBoundsHandler(MinecraftClient.getInstance().currentScreen.getClass());
+    }
+    
+    private long getStringFromCurrent(boolean isOnRightSide) {
+        return getLongFromAreas(isOnRightSide ? getHandler().getRightBounds(MinecraftClient.getInstance().currentScreen) : getHandler().getLeftBounds(MinecraftClient.getInstance().currentScreen), getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide));
+    }
+    
+    @Override
+    public ActionResult canItemSlotWidgetFit(boolean isOnRightSide, int left, int top, Screen screen, Rectangle fullBounds) {
+        List<Rectangle> currentExclusionZones = getCurrentExclusionZones(MinecraftClient.getInstance().currentScreen.getClass(), isOnRightSide);
+        for (Rectangle currentExclusionZone : currentExclusionZones)
+            if (left + 18 >= currentExclusionZone.x && top + 18 >= currentExclusionZone.y && left <= currentExclusionZone.x + currentExclusionZone.width && top <= currentExclusionZone.y + currentExclusionZone.height)
+                return ActionResult.FAIL;
+        return ActionResult.PASS;
+    }
+    
+    public List<Rectangle> getCurrentExclusionZones(Class<?> currentScreenClass, boolean isOnRightSide) {
+        List<Pair<Pair<Class<?>, Float>, Function<Boolean, List<Rectangle>>>> only = list.stream().filter(pair -> pair.getLeft().getLeft().isAssignableFrom(currentScreenClass)).collect(Collectors.toList());
+        only.sort(LIST_PAIR_COMPARATOR);
+        List<Rectangle> rectangles = Lists.newArrayList();
+        only.forEach(pair -> rectangles.addAll(pair.getRight().apply(isOnRightSide)));
+        return rectangles;
+    }
+    
+    @Override
+    public void registerExclusionZones(Class<?> screenClass, Function<Boolean, List<Rectangle>> supplier) {
+        list.add(new Pair<>(new Pair<>(screenClass, 0f), supplier));
+    }
+    
+    public long getLongFromAreas(Rectangle rectangle, List<Rectangle> exclusionZones) {
+        long a = RECTANGLE_LONG_FUNCTION.apply(rectangle);
+        for (Rectangle exclusionZone : exclusionZones)
+            a -= RECTANGLE_LONG_FUNCTION.apply(exclusionZone);
+        return a;
+    }
+    
+}