Fix adding items to trade.

Now possible add same items from all ways.
Also added protection from adding same stackable items.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/gui/tradewindow.h b/src/gui/tradewindow.h
index 3c5ed56b0..16b3d9d6f 100644
--- a/src/gui/tradewindow.h
+++ b/src/gui/tradewindow.h
@@ -95,7 +95,7 @@ class TradeWindow : public Window, gcn::ActionListener, gcn::SelectionListener
         /**
          * Send trade packet.
          */
-        void tradeItem(Item *item, int quantity);
+        void tradeItem(Item *item, int quantity, bool check = false);
 
         /**
          * Updates the labels and makes sure only one item is selected in
@@ -131,6 +131,8 @@ class TradeWindow : public Window, gcn::ActionListener, gcn::SelectionListener
         std::string getAutoTradeNick()
         { return mAutoAddToNick; }
 
+        bool checkItem(Item *item);
+
     private:
         enum Status
         {