Make Storage Cell tooltips configurable

Closes #427

src/main/java/appeng/core/AEConfig.java

@@ -84,6 +84,7 @@ public final class AEConfig extends Configuration implements IConfigurableObject
     private PowerUnits selectedPowerUnit = PowerUnits.AE;
     private boolean showCraftableTooltip = true;
     private boolean showPlacementPreview = true;
+    private boolean showCellContentsPreview = true;
 
     // Spatial IO/Dimension
     private int storageProviderID = -1;
@@ -259,6 +260,7 @@ public final class AEConfig extends Configuration implements IConfigurableObject
         this.useColoredCraftingStatus = this.get("Client", "useColoredCraftingStatus", true).getBoolean(true);
         this.showCraftableTooltip = this.get("Client", "showCraftableTooltip", true, "Whether to add \"Craftable\" to item tooltips when they can be crafted automatically.").getBoolean(true);
         this.showPlacementPreview = this.get("Client", "showPlacementPreview", true, "Whether to show a preview of part and facade placement.").getBoolean(true);
+        this.showCellContentsPreview = this.get("Client", "showCellContentsPreview", true, "Whether to show a preview of cell contents in tooltips.").getBoolean(true);
 
         // load buttons..
         for (int btnNum = 0; btnNum < 4; btnNum++) {
@@ -520,6 +522,10 @@ public final class AEConfig extends Configuration implements IConfigurableObject
         return this.showPlacementPreview;
     }
 
+    public boolean showCellContentsPreview() {
+        return showCellContentsPreview;
+    }
+
     public boolean isDisableColoredCableRecipesInJEI() {
         return this.disableColoredCableRecipesInJEI;
     }

src/main/java/appeng/core/api/ApiClientHelper.java

@@ -11,6 +11,7 @@ import appeng.api.storage.data.IAEItemStack;
 import appeng.api.storage.data.IAEStack;
 import appeng.api.storage.data.IItemList;
 import appeng.api.util.IClientHelper;
+import appeng.core.AEConfig;
 import appeng.core.localization.GuiText;
 import appeng.fluids.items.FluidDummyItem;
 import appeng.fluids.util.AEFluidStack;
@@ -109,7 +110,10 @@ public class ApiClientHelper implements IClientHelper {
                 }
             }
         } else {
-            if (Minecraft.getMinecraft().gameSettings.advancedItemTooltips || Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) || Keyboard.isKeyDown(Keyboard.KEY_RSHIFT)) {
+            if (!AEConfig.instance().showCellContentsPreview()) return;
+            if (Minecraft.getMinecraft().gameSettings.advancedItemTooltips
+                    || Keyboard.isKeyDown(Keyboard.KEY_LSHIFT) || Keyboard.isKeyDown(Keyboard.KEY_RSHIFT)
+            ) {
                 cellInventory.getAvailableItems((IItemList) itemList);
                 for (IAEStack<?> s : itemList) {
                     if (s instanceof IAEItemStack) {