1 files changed, 48 insertions, 0 deletions
diff --git a/src/main/java/dev/isxander/yacl3/gui/YACLTooltipPositioner.java b/src/main/java/dev/isxander/yacl3/gui/YACLTooltipPositioner.java
new file mode 100644
index 0000000..bb87170
--- /dev/null
+++ b/src/main/java/dev/isxander/yacl3/gui/YACLTooltipPositioner.java
@@ -0,0 +1,48 @@
+package dev.isxander.yacl3.gui;
+
+import net.minecraft.client.gui.navigation.ScreenRectangle;
+import net.minecraft.client.gui.screens.inventory.tooltip.ClientTooltipPositioner;
+import net.minecraft.util.Mth;
+import org.joml.Vector2i;
+import org.joml.Vector2ic;
+
+import java.util.function.Supplier;
+
+public class YACLTooltipPositioner implements ClientTooltipPositioner {
+    private final Supplier<ScreenRectangle> buttonDimensions;
+
+    public YACLTooltipPositioner(net.minecraft.client.gui.components.AbstractWidget widget) {
+        this.buttonDimensions = widget::getRectangle;
+    }
+
+    public YACLTooltipPositioner(dev.isxander.yacl3.gui.AbstractWidget widget) {
+        this.buttonDimensions = () -> {
+            var dim = widget.getDimension();
+            return new ScreenRectangle(dim.x(), dim.y(), dim.width(), dim.height());
+        };
+    }
+
+    public YACLTooltipPositioner(Supplier<ScreenRectangle> buttonDimensions) {
+        this.buttonDimensions = buttonDimensions;
+    }
+
+    @Override
+    public Vector2ic positionTooltip(int guiWidth, int guiHeight, int x, int y, int width, int height) {
+        ScreenRectangle buttonDimensions = this.buttonDimensions.get();
+
+        int centerX = buttonDimensions.left() + buttonDimensions.width() / 2;
+        int aboveY = buttonDimensions.top() - height - 4;
+        int belowY = buttonDimensions.top() + buttonDimensions.height() + 4;
+
+        int maxBelow = guiHeight - (belowY + height);
+        int minAbove = aboveY - height;
+
+        int yResult = aboveY;
+        if (minAbove < 8)
+            yResult = maxBelow > minAbove ? belowY : aboveY;
+
+        int xResult = Mth.clamp(centerX - width / 2, -4, guiWidth - width - 4);
+
+        return new Vector2i(xResult, yResult);
+    }
+}