add blockchain.get_name method, update kivy gui

lib/blockchain.py

@@ -110,10 +110,15 @@ class Blockchain(util.PrintError):
         children = filter(lambda y: y.parent==self, blockchains.values())
         return max([x.checkpoint for x in children]) if children else None
 
-    def get_branch_size(self):
+    def get_checkpoint(self):
         mc = self.get_max_child()
-        checkpoint = mc if mc is not None else self.checkpoint
-        return self.height() - checkpoint + 1
+        return mc if mc is not None else self.checkpoint
+
+    def get_branch_size(self):
+        return self.height() - self.get_checkpoint() + 1
+
+    def get_name(self):
+        return self.get_hash(self.get_checkpoint()).lstrip('00')[0:10]
 
     def check_header(self, header):
         header_hash = hash_header(header)

lib/network.py

@@ -696,9 +696,6 @@ class Network(util.DaemonThread):
             if b.catch_up == server:
                 b.catch_up = None
 
-    def get_checkpoint(self):
-        return max(self.blockchains.keys())
-
     def new_interface(self, server, socket):
         # todo: get tip first, then decide which checkpoint to use.
         self.add_recent_server(server)
@@ -823,6 +820,7 @@ class Network(util.DaemonThread):
                     interface.bad_header = header
                     delta = interface.tip - height
                     next_height = max(0, interface.tip - 2 * delta)
+
         elif interface.mode == 'binary':
             if chain:
                 interface.good = height
@@ -1011,11 +1009,6 @@ class Network(util.DaemonThread):
                 out[k] = r
         return out
 
-    def get_blockchain_name(self, blockchain):
-        checkpoint = self.get_checkpoint()
-        _hash = blockchain.get_hash(checkpoint)
-        return _hash.lstrip('00')[0:10]
-
     def follow_chain(self, index):
         blockchain = self.blockchains.get(index)
         if blockchain: