Crafting settings gui

src/main/java/refinedstorage/gui/GuiCraftingSettings.java

@@ -0,0 +1,36 @@
+package refinedstorage.gui;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.Container;
+
+public class GuiCraftingSettings extends GuiBase {
+    public GuiCraftingSettings() {
+        super(new Container() {
+            @Override
+            public boolean canInteractWith(EntityPlayer player) {
+                return false;
+            }
+        }, 143, 61);
+    }
+
+    @Override
+    public void init(int x, int y) {
+        addButton(x + 56, y + 38, 50, 50, "Craft");
+    }
+
+    @Override
+    public void update(int x, int y) {
+    }
+
+    @Override
+    public void drawBackground(int x, int y, int mouseX, int mouseY) {
+        bindTexture("gui/crafting_settings.png");
+
+        drawTexture(x, y, 0, 0, width, height);
+    }
+
+    @Override
+    public void drawForeground(int mouseX, int mouseY) {
+        drawString(55, 7, "Crafting");
+    }
+}

src/main/java/refinedstorage/gui/GuiGrid.java

@@ -7,6 +7,7 @@ import net.minecraft.client.renderer.GlStateManager;
 import net.minecraft.client.renderer.RenderHelper;
 import net.minecraft.init.SoundEvents;
 import net.minecraft.inventory.Slot;
+import net.minecraftforge.fml.common.FMLCommonHandler;
 import refinedstorage.RefinedStorage;
 import refinedstorage.block.EnumGridType;
 import refinedstorage.container.ContainerGrid;
@@ -266,21 +267,25 @@ public class GuiGrid extends GuiBase {
             if (isHoveringOverSlot() && container.getPlayer().inventory.getItemStack() != null && (clickedButton == 0 || clickedButton == 1)) {
                 grid.onItemPush(-1, clickedButton == 1);
             } else if (isHoveringOverItemInSlot() && container.getPlayer().inventory.getItemStack() == null) {
-                int flags = 0;
+                if (items.get(hoveringSlot).getQuantity() == 0) {
+                    FMLCommonHandler.instance().showGuiScreen(new GuiCraftingSettings());
+                } else {
+                    int flags = 0;
 
-                if (clickedButton == 1) {
-                    flags |= GridPullFlags.PULL_HALF;
+                    if (clickedButton == 1) {
+                        flags |= GridPullFlags.PULL_HALF;
+                    }
+
+                    if (GuiScreen.isShiftKeyDown()) {
+                        flags |= GridPullFlags.PULL_SHIFT;
+                    }
+
+                    if (clickedButton == 2) {
+                        flags |= GridPullFlags.PULL_ONE;
+                    }
+
+                    grid.onItemPull(hoveringItemId, flags);
                 }
-
-                if (GuiScreen.isShiftKeyDown()) {
-                    flags |= GridPullFlags.PULL_SHIFT;
-                }
-
-                if (clickedButton == 2) {
-                    flags |= GridPullFlags.PULL_ONE;
-                }
-
-                grid.onItemPull(hoveringItemId, flags);
             } else if (clickedClear) {
                 RefinedStorage.NETWORK.sendToServer(new MessageGridCraftingClear((TileGrid) grid));
             } else {