Add autocomplete to bitcoin-qt's console window.

Removed externs
Added listCommands() to CRPCTable

Move autocomplete init to RPCConsole::setClientModel()

src/qt/rpcconsole.cpp

@@ -36,6 +36,7 @@
 #include <QThread>
 #include <QTime>
 #include <QTimer>
+#include <QStringList>
 
 #if QT_VERSION < 0x050000
 #include <QUrl>
@@ -446,7 +447,19 @@ void RPCConsole::setClientModel(ClientModel *model)
         ui->buildDate->setText(model->formatBuildDate());
         ui->startupTime->setText(model->formatClientStartupTime());
         ui->networkName->setText(QString::fromStdString(Params().NetworkIDString()));
-    }
+
+        //Setup autocomplete and attach it
+        QStringList wordList;
+        std::vector<std::string> commandList = tableRPC.listCommands();
+        for (size_t i = 0; i < commandList.size(); ++i)
+        {
+            wordList << commandList[i].c_str();
+        }
+
+        autoCompleter = new QCompleter(wordList, this);
+        ui->lineEdit->setCompleter(autoCompleter);
+
+        }
 }
 
 static QString categoryClass(int category)

src/qt/rpcconsole.h

@@ -11,6 +11,7 @@
 #include "net.h"
 
 #include <QWidget>
+#include <QCompleter>
 
 class ClientModel;
 class PlatformStyle;
@@ -138,6 +139,7 @@ private:
     QMenu *peersTableContextMenu;
     QMenu *banTableContextMenu;
     int consoleFontSize;
+    QCompleter *autoCompleter;
 };
 
 #endif // BITCOIN_QT_RPCCONSOLE_H

src/rpc/server.cpp

@@ -499,6 +499,17 @@ UniValue CRPCTable::execute(const std::string &strMethod, const UniValue &params
     g_rpcSignals.PostCommand(*pcmd);
 }
 
+std::vector<std::string> CRPCTable::listCommands() const
+{
+    std::vector<std::string> commandList;
+    typedef std::map<std::string, const CRPCCommand*> commandMap;
+
+    std::transform( mapCommands.begin(), mapCommands.end(),
+                   std::back_inserter(commandList),
+                   boost::bind(&commandMap::value_type::first,_1) );
+    return commandList;
+}
+
 std::string HelpExampleCli(const std::string& methodname, const std::string& args)
 {
     return "> bitcoin-cli " + methodname + " " + args + "\n";

src/rpc/server.h

@@ -145,6 +145,12 @@ public:
      */
     UniValue execute(const std::string &method, const UniValue &params) const;
 
+    /**
+    * Returns a list of registered commands
+    * @returns List of registered commands.
+    */
+    std::vector<std::string> listCommands() const;
+
 
     /**
      * Appends a CRPCCommand to the dispatch table.