1 files changed, 92 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/gui/widgets/PhantomItemButton.java b/src/main/java/gregtech/api/gui/widgets/PhantomItemButton.java
new file mode 100644
index 0000000000..e13266b33f
--- /dev/null
+++ b/src/main/java/gregtech/api/gui/widgets/PhantomItemButton.java
@@ -0,0 +1,92 @@
+package gregtech.api.gui.widgets;
+
+import java.util.List;
+
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.StatCollector;
+
+import org.apache.commons.lang3.NotImplementedException;
+import org.jetbrains.annotations.Nullable;
+
+import com.google.common.collect.ImmutableList;
+import com.gtnewhorizons.modularui.api.ModularUITextures;
+import com.gtnewhorizons.modularui.api.drawable.IDrawable;
+import com.gtnewhorizons.modularui.api.drawable.Text;
+import com.gtnewhorizons.modularui.api.forge.IItemHandlerModifiable;
+import com.gtnewhorizons.modularui.common.internal.wrapper.BaseSlot;
+import com.gtnewhorizons.modularui.common.widget.SlotWidget;
+
+import gregtech.api.gui.modularui.GTUITextures;
+import gregtech.api.interfaces.metatileentity.IItemLockable;
+
+/**
+ * Creates a phantom item in a GUI. Useful for filtering.
+ */
+public class PhantomItemButton extends SlotWidget {
+
+    public static final IDrawable[] FILTER_BACKGROUND = { ModularUITextures.ITEM_SLOT,
+        GTUITextures.OVERLAY_SLOT_FILTER };
+
+    public PhantomItemButton(final IItemLockable delegate) {
+        super(BaseSlot.phantom(new PhantomItemDelegate(delegate), 0));
+        controlsAmount = false;
+    }
+
+    @Override
+    public List<Text> getTooltip() {
+        return ImmutableList.of(new Text(StatCollector.translateToLocal("GT5U.bus.filterTooltip.empty")));
+    }
+
+    @Override
+    public List<String> getExtraTooltip() {
+        return ImmutableList.of(StatCollector.translateToLocal("GT5U.bus.filterTooltip.full"));
+    }
+
+    @Override
+    public boolean onMouseScroll(int direction) {
+        return false;
+    }
+
+    @SuppressWarnings("ClassCanBeRecord")
+    private static class PhantomItemDelegate implements IItemHandlerModifiable {
+
+        private final IItemLockable delegate;
+
+        public PhantomItemDelegate(final IItemLockable delegate) {
+            this.delegate = delegate;
+        }
+
+        @Override
+        public void setStackInSlot(int slot, ItemStack itemStack) {
+            delegate.setLockedItem(itemStack);
+        }
+
+        @Override
+        public int getSlots() {
+            return 1;
+        }
+
+        @Override
+        public ItemStack getStackInSlot(int slot) {
+            return delegate.getLockedItem();
+        }
+
+        @Nullable
+        @Override
+        public ItemStack insertItem(int slot, ItemStack itemStack, boolean simulate) {
+            delegate.setLockedItem(itemStack);
+            return null;
+        }
+
+        @Nullable
+        @Override
+        public ItemStack extractItem(int var1, int var2, boolean var3) {
+            throw new NotImplementedException("Extract item is disabled for GhostItemButtons.");
+        }
+
+        @Override
+        public int getSlotLimit(int slot) {
+            return 1;
+        }
+    }
+}