Added secondary mode to tool framework. Updated /cycler to make use of this.

src/com/sk89q/worldedit/WorldEdit.java

@@ -866,7 +866,7 @@ public class WorldEdit {
         Tool tool = session.getTool(player.getItemInHand());
         
         if (tool != null && tool instanceof BlockTool) {
-            ((BlockTool)tool).act(server, config, player, session, clicked);
+            ((BlockTool)tool).actPrimary(server, config, player, session, clicked);
             return true;
         }
 
@@ -901,11 +901,18 @@ public class WorldEdit {
             }
         } else if (player.isHoldingPickAxe() && session.hasSuperPickAxe()) {
             if (session.getSuperPickaxe() != null) {
-                return session.getSuperPickaxe().act(server, config,
+                return session.getSuperPickaxe().actPrimary(server, config,
                         player, session, clicked);
             }
         }
 
+        Tool tool = session.getTool(player.getItemInHand());
+        
+        if (tool != null && tool instanceof DoubleActionBlockTool) {
+            ((DoubleActionBlockTool)tool).actSecondary(server, config, player, session, clicked);
+            return true;
+        }
+
         return false;
     }
 

src/com/sk89q/worldedit/tools/AreaPickaxe.java

@@ -37,7 +37,7 @@ public class AreaPickaxe implements BlockTool {
     }
     
     @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked) {
         LocalWorld world = clicked.getWorld();
         int ox = clicked.getBlockX();

src/com/sk89q/worldedit/tools/BlockDataCyler.java

@@ -27,10 +27,10 @@ import com.sk89q.worldedit.blocks.BlockID;
  * 
  * @author sk89q
  */
-public class BlockDataCyler implements BlockTool {
-    @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
-            LocalPlayer player, LocalSession session, WorldVector clicked) {
+public class BlockDataCyler implements DoubleActionBlockTool {
+    
+    private boolean handleCycle(ServerInterface server, LocalConfiguration config,
+            LocalPlayer player, LocalSession session, WorldVector clicked, boolean forward) {
         
         LocalWorld world = clicked.getWorld();
         
@@ -44,40 +44,50 @@ public class BlockDataCyler implements BlockTool {
             return true;
         }
         
+        int increment = forward ? 1 : -1;
+        
         if (type == BlockID.LOG) {
-            data = (data + 1) % 3;
+            data = (data + increment) % 3;
         } else if (type == BlockID.LEAVES) {
-            data = (data + 1) % 3;
+            data = (data + increment) % 3;
+        } else if (type == BlockID.SAPLING) {
+            int saplingType = data & 0x03;
+            int age = data & 0x0c;
+            data = (saplingType + increment) % 4 | age;
         } else if (type == BlockID.CACTUS) {
-            data = (data + 1) % 16;
+            data = (data + increment) % 16;
         } else if (type == BlockID.SOIL) {
-            data = (data + 1) % 9;
+            data = (data + increment) % 9;
         } else if (type == BlockID.CROPS) {
-            data = (data + 1) % 6;
+            data = (data + increment) % 6;
         } else if (type == BlockID.MINECART_TRACKS) {
             if (data >= 6 && data <= 9) {
-                data = (data + 1) % 4 + 6;
+                data = (data + increment) % 4 + 6;
             } else {
                 player.printError("This minecart track orientation is not supported.");
                 return true;
             }
         } else if (type == BlockID.WOODEN_STAIRS || type == BlockID.COBBLESTONE_STAIRS) {
-            data = (data + 1) % 4;
+            data = (data + increment) % 4;
         } else if (type == BlockID.SIGN_POST) {
-            data = (data + 1) % 16;
+            data = (data + increment) % 16;
         } else if (type == BlockID.WALL_SIGN) {
-            if(data == 2)  data = 5; else data--;
+            data = ((data + increment) - 2) % 4 + 2;
         } else if (type == BlockID.STEP) {
-            data = (data + 1) % 3;
+            data = (data + increment) % 3;
         } else if (type == BlockID.DOUBLE_STEP) {
-            data = (data + 1) % 3;
+            data = (data + increment) % 3;
         } else if (type == BlockID.FURNACE || type == BlockID.BURNING_FURNACE
                 || type == BlockID.DISPENSER) {
-            data = (data + 1) % 4 + 2;
+            data = (data + increment) % 4 + 2;
         } else if (type == BlockID.PUMPKIN || type == BlockID.JACKOLANTERN) {
-            data = (data + 1) % 4;
+            data = (data + increment) % 4;
         } else if (type == BlockID.CLOTH) {
+            if (forward) {
                 data = nextClothColor(data);
+            } else {
+                data = prevClothColor(data);
+            }
         } else {
             player.printError("That block's data cannot be cycled.");
             return true;
@@ -88,6 +98,19 @@ public class BlockDataCyler implements BlockTool {
         return true;
     }
     
+    @Override
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
+            LocalPlayer player, LocalSession session, WorldVector clicked) {
+        return handleCycle(server, config, player, session, clicked, true);
+    }
+
+    @Override
+    public boolean actSecondary(ServerInterface server,
+            LocalConfiguration config, LocalPlayer player,
+            LocalSession session, WorldVector clicked) {
+        return handleCycle(server, config, player, session, clicked, false);
+    }
+    
     private static int nextClothColor(int data) {
         switch (data) {
             case 0: return 8;
@@ -110,4 +133,27 @@ public class BlockDataCyler implements BlockTool {
     
         return 0;
     }
+    
+    private static int prevClothColor(int data) {
+        switch (data) {
+            case 8: return 0;
+            case 7: return 8;
+            case 15: return 7;
+            case 12: return 15;
+            case 14: return 12;
+            case 1: return 14;
+            case 4: return 1;
+            case 5: return 4;
+            case 13: return 5;
+            case 9: return 13;
+            case 3: return 9;
+            case 11: return 3;
+            case 10: return 11;
+            case 2: return 10;
+            case 6: return 2;
+            case 0: return 6;
+        }
+    
+        return 0;
+    }
 }

src/com/sk89q/worldedit/tools/BlockReplacer.java

@@ -36,7 +36,7 @@ public class BlockReplacer implements BlockTool {
     }
     
     @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked) {
 
         BlockBag bag = session.getBlockBag(player);

src/com/sk89q/worldedit/tools/BlockTool.java

@@ -38,6 +38,6 @@ public interface BlockTool extends Tool {
      * @param clicked
      * @return true to deny
      */
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked);
 }

src/com/sk89q/worldedit/tools/DoubleActionBlockTool.java

@@ -0,0 +1,47 @@
+// $Id$
+/*
+ * WorldEdit
+ * Copyright (C) 2010, 2011 sk89q <http://www.sk89q.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package com.sk89q.worldedit.tools;
+
+import com.sk89q.worldedit.LocalConfiguration;
+import com.sk89q.worldedit.LocalPlayer;
+import com.sk89q.worldedit.LocalSession;
+import com.sk89q.worldedit.ServerInterface;
+import com.sk89q.worldedit.WorldVector;
+
+/**
+ * Represents a block tool that also has a secondary/primary function.
+ *
+ * @author sk89q
+ */
+public interface DoubleActionBlockTool extends BlockTool {
+    /**
+     * Perform the secondary action. Should return true to deny the default
+     * action.
+     * 
+     * @param server 
+     * @param config 
+     * @param player
+     * @param session
+     * @param clicked
+     * @return true to deny
+     */
+    public boolean actSecondary(ServerInterface server, LocalConfiguration config,
+            LocalPlayer player, LocalSession session, WorldVector clicked);
+}

src/com/sk89q/worldedit/tools/QueryTool.java

@@ -30,7 +30,7 @@ import com.sk89q.worldedit.blocks.*;
 public class QueryTool implements BlockTool {
 
     @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked) {
         
         LocalWorld world = clicked.getWorld();

src/com/sk89q/worldedit/tools/RecursivePickaxe.java

@@ -40,7 +40,7 @@ public class RecursivePickaxe implements BlockTool {
     }
     
     @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked) {
         LocalWorld world = clicked.getWorld();
         

src/com/sk89q/worldedit/tools/SinglePickaxe.java

@@ -29,7 +29,7 @@ import com.sk89q.worldedit.blocks.BlockID;
  */
 public class SinglePickaxe implements BlockTool {
     @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked) {
         LocalWorld world = clicked.getWorld();
         

src/com/sk89q/worldedit/tools/TreePlanter.java

@@ -35,7 +35,7 @@ public class TreePlanter implements BlockTool {
     }
     
     @Override
-    public boolean act(ServerInterface server, LocalConfiguration config,
+    public boolean actPrimary(ServerInterface server, LocalConfiguration config,
             LocalPlayer player, LocalSession session, WorldVector clicked) {
         
         LocalWorld world = clicked.getWorld();